• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In order to increase the safety against electric shock when working by a person (8) on an electrical system (10) with at least two different circuits (51a, 51b), a safety module (22) is provided on the electrical system (10), wherein the Security module (22) an emergency signal input (21) is provided, and the safety module (22) upon receipt of an external emergency signal (S) via the emergency signal input (21) a configured first circuit (51 a) via the associated switch (54 a) de-energized and at least a further circuit (51b) via the associated switch (54b) de-energized when the security module (22) after a predetermined period of time still receives the distress signal (S) at the emergency signal input (21), the emergency signal preferably from a protective device (1) for Recognizing an impermissible body current is generated, which carries the person (8).
    公开号:AT521135A4
    申请号:T505132018
    申请日:2018-06-21
    公开日:2019-11-15
    发明作者:
    申请人:Adaptive Regelsysteme Ges M B H；
    IPC主号:
    专利说明:

    Summary
    In order to increase the security against electric shocks when working by a person (8) on an electrical system (10) with at least two different electrical circuits (51a, 51b), a safety module (22) is provided on the electrical system (10) Security module (22) an emergency signal input (21) is provided, and the security module (22) when receiving an external emergency signal (S) via the emergency signal input (21) switches a configured first circuit (51a) via the assigned switch (54a) and at least voltage-free disconnects another circuit (51b) via the assigned switch (54b) if the security module (22) still receives the emergency signal (S) at the emergency signal input (21) after a predetermined period of time, the emergency signal preferably from a protective device (1) for Detection of an impermissible body current is generated, which carries the person (8).
    Fig. 1, -191 / 23
    AR-4011 AT
    Electrical system with a plurality of electrical circuits and protective equipment against electric shock
    The present invention relates to an electrical system with a plurality of electrical circuits, each with a switch for switching the associated circuit to a voltage-free state, an arrangement for performing work on the electrical system and a method for performing work on the electrical system by a person.
    It is customary to provide an emergency stop on electrical systems, in particular in an industrial environment, in order to disconnect the component which is in the emergency stop circuit when someone touches a live or live component. With such protective devices, the safety of people working on live parts or live parts against electric shock due to unintentional contact can be increased by other people present triggering the emergency stop in the event of a fault. However, this means that at least one other person is in the vicinity of a power accident and also becomes aware of the power accident, which is not always the case.
    However, a number of different circuits are usually implemented in electrical systems. Switching off an emergency stop circuit cannot therefore ensure that the touched component is actually de-energized after the emergency stop has been actuated. This also leaves a certain residual risk for people working in the vicinity of the electrical system.
    Other common safety devices in electrical systems are automatic circuit breakers for the voltage-free switching of circuits in the event of an impermissible electrical current and residual current circuit breakers which are to respond to impermissible earth fault currents. However, these can only provide security if they actually respond in the event of an error. Due to possible high response currents or slower reaction times, there may be a danger for people working on the system despite such safety devices.
    Methods and devices for better protection of persons against impermissible electrical currents have also become known. DE 39 03 025 A1 describes, for example, such a method and such a device, wherein at least two extremities of the person, e.g. Arms or legs, each an electrode is arranged, which are connected to a control unit. A body current through the contact of an external electrical potential is detected by the control device via the electrodes. If such a current flow is detected, the control device activates a switch-off device with which the further current supply to the contact point is interrupted. The electrodes and the control device can be arranged on a piece of clothing and the connection between control / 23
    AR-4011 AT device and switch-off device is wireless. A similar protective device is shown in DE 44 38 063 A1. With such protective devices, the safety of people working on live parts or live parts against electric shock due to accidental contact can be increased.
    It is therefore the object of the present invention to increase the security against electric shocks when working by a person on an electrical system with at least two different circuits.
    This object is achieved according to the invention in that a safety module is provided on the electrical system, an emergency signal input being provided on the safety module which, when an external emergency signal is received at the emergency signal input, disconnects a configured first circuit via the assigned switch and at least one further circuit via the assigned switch switches voltage-free if the safety module still receives the emergency signal at the emergency signal input after a predetermined period of time. This means that a circuit can be de-energized when an emergency signal is received, and several circuits can be de-energized if the emergency signal should still be present despite a first switching action. This can increase the safety of the person working on the electrical system. Any hierarchy of switching operations can also be defined.
    The emergency signal is very particularly advantageously generated with a protective device for detecting an electrical body current, which is carried by the person and which, in the event of a detected impermissible body current, outputs an emergency signal and transmits it to the emergency signal input of the security module. As soon as the protective device detects an impermissible body current (which can be configured accordingly), an emergency signal is triggered, which in turn triggers the switching action by the safety module. In this way, the protection of the person is no longer tied to the presence of another person who, for example, forces a switching action by operating an emergency stop.
    Further advantageous refinements and effects of the invention result from the dependent claims and the following description.
    The present invention is explained in more detail below with reference to FIGS. 1 to 8, which show exemplary, schematic and non-limiting advantageous embodiments of the invention. It shows
    1 shows an electrical system according to the invention,
    2 shows a hierarchy of switching operations in the electrical system,
    3 shows a protective device worn by a person,
    4 shows an embodiment of the inventive method for communicating / 232
    AR-4011 AT a remote location about a power accident involving a person wearing a protective device
    5 shows the use of a mobile terminal for establishing the radio connection to the remote location,
    6 the additional detection of the position of the person,
    7 shows a possible communication link between two protective devices and
    8 shows an arrangement with a plurality of radio receivers for transmitting the emergency signal from the protective device.
    Often, work must be carried out by a person 8 on existing electrical systems 10, for example a control cabinet or an electrical distributor, or also on connected consumers 53 located in the electrical system 10. A plurality of electric circuits 51 are usually provided in such an electrical installation 10, the present invention starting from at least two electric circuits 51a, 51b, it being possible, of course, to have any number of electric circuits. Such an electrical system 10 is shown by way of example in FIG. 1. Electrical systems 10 generally include switches 54a, 54b (circuit breakers) for the circuits 51a, 51b in order to disconnect a circuit 51a, 51b from voltage. Any electrical consumer 53a, 53b can be provided in a circuit 51a, 51b. A typical example of the electrical system 10 is an electrical distributor of a building with a number of circuit breakers and circuit breakers (residual current circuit breaker or total current circuit breaker) as switch 54. Another example is a control cabinet for a production system. In order to carry out work on circuits 51a, 51b, they are generally switched off, for example by the associated switches 54a, 54b, such as e.g. Breakers. However, it may also be the case that certain circuits 51a, 51b may not be switched off and therefore work in this circuit 51a, 51b must be carried out under voltage. This can be the case, for example, in a production or manufacturing system or in machine tools, where switching off a circuit 51a, 51b can lead to an undesired interruption in operation. Sockets 52a, 52b are often also provided in the circuit 51a, 51b, to which electrical consumers can also be connected.
    Furthermore, especially in the industrial environment, it is conceivable that a circuit 51a is designed as an emergency stop circuit. For this purpose, at least one well-known emergency stop switch 20 is connected in this circuit 51a, which, when actuated, switches the circuit 51a voltage-free, for example via a disconnecting unit 23, e.g. an isolating relay, as in Fig.1.
    / 23
    AR-4011 AT
    In order to protect a person 8 working on such an electrical system 10 with at least two circuits 51a, 51b or consumers 53a, 53b from electric shocks, a safety module 22 with an emergency signal input 21 is provided. The security module 22 can be arranged, for example, in the control cabinet or in the distributor, but can also be arranged in the region of the circuit 51a, 51b or a consumer 53a, 53b.
    An external emergency signal S can be received at the emergency signal input 21, for example wired or wireless (as in FIG. 1). If the emergency signal input 21 receives an emergency signal S, the safety module 22 sets a switching action which ensures that a circuit 51a, 5ab is de-energized. For this purpose, the security module 22 can open a switch 54a, 54b of a circuit 51, 51b, either directly or indirectly. A direct opening could be implemented, for example, by a switch 54a, 54b with an external switching input. For indirect opening, the circuit 51a, 51b could be short-circuited (e.g. by connecting a phase to the neutral conductor), which would trigger automatic circuit breakers (as switches 54a, 54b). The safety module 22 could also generate a sufficient earth fault current in the electrical circuit 51a, 51b, for example by connecting a phase to earth via a resistor, which would trigger a fault current protection switch (as a switch 54a, 54b). The safety module 22 could also act on any emergency stop switch 20 (as a switch 54a, 54b) to actuate the disconnection unit 23, so that the disconnection unit 23 interrupts the circuit 51a, 51b. Which type of action is triggered naturally depends on the type and design of the electrical system 10 and can be adapted accordingly.
    The external emergency signal S is generated in order to protect the person 8 working on the electrical system 10 against an electrical accident or against the effects of an electrical accident. When working on live parts, the person 8 may touch a live part of the electrical system 10, which may result in an electric shock from the body of the person 8. The triggering of the security module 22 via the externally received emergency signal S is intended to disconnect the circuit 51a, 51b on which the person 8 is working in order to minimize the duration of an electric shock that has occurred.
    Situations are conceivable that a switching operation on the electrical system 10 is carried out by the emergency signal S, but this does not lead to the desired success, that is to say that the contacted part is free of voltage. This can happen, for example, if one circuit is interrupted, but another circuit remains live. It is therefore provided in the safety module 22 that it is monitored whether the switching action leads to the desired success within a predetermined period of time, for example 100 ms, namely determining that the emergency device S no longer receives / 23
    AR-4011 AT. This is equivalent to the successful establishment of the absence of voltage in the circuit 51a, 51b concerned or the loss of contact of the person 8 with the low-voltage component of the electrical system 10. If no voltage is found in the specified period of time, the electrical system 10 is used to the safety module 22 triggered another switching action. For this purpose, a hierarchy of the circuits 51a, 51b can be defined in the security module 22, which are switched off one after the other as long as an emergency signal S is received.
    It can be provided that several circuits 51a, 51b are simultaneously disconnected in one hierarchy level, either by opening all switches 54a, 54b of the circuits 51a, 51b concerned or by implementing a corresponding switch hierarchy.
    For example, this hierarchy can be tree-like with several hierarchy levels A, B, C, as shown in FIG. In the first hierarchical level A, the switches 54a, 54b (etc.) are provided, which are first switched by the security module 22. These are, for example, the switches 54a, 54b for the individual circuits 51a, 51b. If a switching action in this hierarchy level A is unsuccessful, then another circuit in this hierarchy level A can be disconnected as the next switching action, whereby it can also be defined in what order - for example, first neighboring circuits and then others. If this is also unsuccessful, a switch 55a of the next hierarchical level B can be actuated, which switches off all circuits 51a, 51b below. As an alternative, all switches 54a, 54b of the circuits 51a, 51b below can also be actuated for opening. In this way, for example, all circuits of a part of a building, for example an entire floor, could be switched off. In a next hierarchical level C, all circuits in a building could then be disconnected. It is obvious that the hierarchies can be arbitrary and can be configured as desired. Just like the order in which the circuits 51a, 51b are deactivated.
    A plurality of security modules 22 could also be provided in the electrical system 10, as indicated in FIG. 2, each security module 22 being responsible for different parts of the electrical system 10.
    In order to generate an emergency signal S in the event of an electric shock, the person 8 can additionally be equipped with a protective device 1 against electric shock, as indicated in FIG. Such a protective device is known per se in its basic function from the prior art. For example, DE 39 03 025 A1 describes such a protective device, with at least two extremities of the person, e.g. Arms or legs, each an electrode is arranged, which are connected to a control unit. About the Elektro / 235
    AR-4011 AT the body controller detects a body current through contact with an external electrical potential. If such a current flow is detected, the control device activates a switch-off device with which the further current supply to the contact point is interrupted. The electrodes and the control unit can be arranged on a piece of clothing and the connection between the control unit and the shutdown device is wireless. A similar protective device is also shown in DE 44 38 063 A1.
    The subject invention uses a protective device 1 which is known in its basic function from the prior art and which is explained in more detail with reference to FIG. 3 for better understanding. The protective device 1, or at least parts thereof, is arranged or integrated on an item of clothing 2, here a shirt. Of course, other parts can also be considered as clothing item 2, e.g. a pair of pants, a sweater, a t-shirt, a jacket, a jumpsuit, etc. Combinations of several parts are also possible as clothing item 2, e.g. a combination of trousers and shirt, etc. At least one sensor 3 is arranged on the item of clothing 2 in order to detect an electric body current flowing through the human body. Electrodes 5 can be used as sensors 3, for example, in order to detect an electrical potential or an electrical current. The electrodes 5 are preferably arranged at exposed points of the item of clothing 2, for example in the region of extremities, for example on sleeves, trouser legs or hoods. A sensor 3 is also a biometric sensor 7 in order to detect a biometric signal, for example the frequency of the heartbeat, the amplitude or the course of the heartbeat, the respiratory rate, the skin resistance, etc. By evaluating the biometric signal, in particular the heartbeat (frequency, amplitude and / or course), a flowing electrical body current can also be inferred.
    For this purpose, the sensor 3, or the sensors, can preferably be integrated in the item of clothing 2, but can also be applied separately, for example by means of a cuff, a bracelet or a belt. In one possible embodiment, a sensor 3 could be designed as an electrode 5 in the form of a known Rogowski coil (as in FIG. 3) in order to detect an electrical current flowing through an extremity or other part of the human body. For this purpose, the electrode 5 can be placed in a ring around an extremity, e.g. in a waistband of a sleeve or a trouser leg of the item of clothing 2. For the detection of an electrical potential, the electrode 5 must be in an electrically conductive contact with the skin, while e.g. would not be absolutely necessary in the case of a Rogowski coil. A resistance measurement can also be carried out regularly or continuously between two electrodes 5 in order to check whether the garment 2 is properly connected to the body of the person 8. In order to detect the heartbeat, a corresponding biometric sensor 7, e.g. a heart rate sensor, in the lead
    -6 · / 23
    AR-4011 AT extension piece 2 can be integrated in the chest area, or a corresponding chest strap could be put on.
    A sensor 3 is connected via at least one signal line 4 to an evaluation unit 6 (for example in the form of a computing unit, possibly also with corresponding software). The signals detected with the at least one sensor 3 are evaluated in the evaluation unit 6. For example, an electrical potential detected with an electrode 5 as sensor 3 or a detected flowing electrical current can be evaluated. An applied electrical voltage can be determined between two detected electrical potentials, for example with two sensors 3 designed as electrodes 5, and evaluated in the evaluation unit 6. A resistance measurement can also be carried out regularly or continuously between two electrodes 5 in order to check whether the garment 2 is properly connected to the body of the person 8. The body current or potential difference can be evaluated analogously using suitable hardware or digitally, which requires an A / D conversion and corresponding hardware and software. In the event of a detected dangerous body current, for example an abnormal heartbeat, a detected dangerous current flow or a dangerous potential difference (voltage) between two electrodes 5, which in turn leads to a current flow through the body, the evaluation unit 6 generates an emergency signal S which is used can trigger a desired action. For this purpose, of course, corresponding limit values for an allowable body current, for example an allowable potential difference or an allowable current, can also be stored or specified in the evaluation unit 6, which can also be changeable. Likewise, patterns of a biometric signal can be stored in the evaluation unit 6, which indicate a dangerous body current.
    Advantageously, different sensors 3 can be provided on the item of clothing 2 in order to increase the security of the detection of dangerous electrical body currents. For example, electrodes 5 could be provided on extremities and additionally a biometric sensor 7 for detecting the heartbeat, as shown in FIG.
    Likewise, the safety of the protective device 1 can be increased by providing redundancies. For example, more than one signal line 4 can be provided per sensor 3, as a result of which possible cable breaks or contact errors do not have to lead to the failure of the safety function or a cable break or contact error can even be recognized and possibly also displayed.
    The evaluation unit 6 is preferably held or carried by the person 8 who wears the protective device 1. For example, this could be arranged in a shoulder bag or a backpack, but could also be in a pocket of the item of clothing / 237
    AR-4011 AT can be inserted or could advantageously, fully or partially, also be integrated in the item of clothing 2, for example in the form of an intelligent item of clothing with integrated electronics.
    The emergency signal S can in principle be output in a wired or wireless manner and can be received in a wireless or wired manner at the emergency signal input 21.
    The protective device 1 thus consists, for example, of an item of clothing 2 with at least one sensor 3 and an evaluation unit 6, which is connected to the at least one sensor 3 with at least one signal line 4 and which evaluates a signal detected by the sensor 3 in order to generate a dangerous electrical body current to capture. The emergency signal S of the evaluation unit 6, or generally of the protective device 1, can be used by the security module 22 to take certain configured actions in order to increase the security of a person 8 against electric shock.
    In the protective device 1, preferably on the item of clothing 2 or on an external unit which is in data connection with the protective device 1, at least one further sensor 9 can optionally be provided for detecting a further variable, with the further variable representing a further state of the person 8 (in addition to a possible body current) is recorded. The further sensor 9 can be an acceleration sensor, for example, in order to be able to determine a fall of the person 8. A position sensor as a further sensor 9 can be used to detect when the person 8 is lying. The further sensor 9 can be designed to record an EKG (electrocardiogram), which can provide important information about the condition of the accident victim 8 in connection with a power accident. The breathing of the accident victim 8 can also be detected by means of an acceleration sensor or motion sensor as a further sensor 9. Of course, several further sensors 9 can also be provided on the protective device 1, any combinations of the above sensors 9 being conceivable.
    Values recorded with sensor 3 or sensors 3 and / or values recorded with at least one further sensor 9 can also be stored in protective device 1 in a storage unit, for example in evaluation unit 6. This makes it possible to read out stored values at a later time or to transfer them to other locations.
    If contact of the person 8 with a live or live part of an electrical system 10, which causes a body current flowing through the person 8, is detected by the protective device 1 as described above, an emergency signal S is triggered, for example wirelessly, for example via a radio link. The protective device 1 thus triggers a configured switching action via the emergency signal input 21 of the safety module 22 on the electrical system 10, the switching action aimed at the part, / 238
    AR-4011 AT, which is touched by a person 8, must be switched off. If the protective device 1 is activated, an electric shock has already occurred in these situations. The affected person 8 can sometimes work in very remote places or alone, so that despite the activation of the protective device 1, no help for the accident victim 8 comes. The same applies if the protective device 1 fails for whatever reason, that is to say the protective device 1 responds, but no voltage-free connection can be established.
    It can therefore be provided that the protective device 1 not only generates and outputs an emergency signal S, but also with a transmission unit 64, e.g. a mobile radio transmitter 63, also establishes a radio connection 62 (indicated by the dashed line) to a configured location 60 that is remote from the location of the power accident, so that help for the accident victim 8 is initiated or coordinated, preferably by another person 61 in the remote location 60 as shown in Fig.4. In this context, “removed” means that this further person 61 is at least so far away from the accident victim 8 that this additional person 61 cannot perceive the state of the accident victim either visually or acoustically. The additional person 61 can, for example, be seated in an emergency center, which can be in a completely different location. The protective device 1 can set up the radio connection 62 directly via the transmission unit 64, for example by means of a mobile radio transmitter 63 which is integrated in the item of clothing 2, for example again as part of an intelligent clothing. Alternatively, the protective device 1 can also establish the radio connection 62 indirectly, for example by connecting the protective device 1 via the transmitting unit 64 via a suitable data connection 65, for example Bluetooth, to a mobile terminal 66 of the person 8, for example a smartphone (for example by means of Bluetooth). which then establishes the radio connection 62 to the remote location 60, as shown in FIG. 5. A predetermined message can be sent via the radio link 62, for example a text message (SMS), a data transmission (for example by email) or a call. The other person 61 in the remote location 60 can also carry a mobile terminal 67 with them, which can be connected to the radio link 62 if necessary, for example via a mobile radio network. It is obvious that the remote location 60 (e.g. emergency center) does not have to be location-specific, in particular if the additional person 61 also uses a mobile terminal 67 for contacting.
    The transmitter unit 64, e.g. in the form of a mobile radio transmitter 63, is preferably integrated in the evaluation unit 6 or also in the item of clothing 2 (for example in the form of intelligent clothing) itself. The transmission unit 64 can be controlled by the evaluation unit 6 of the protective device 1.
    , -9 · / 23
    AR-4011 AT
    The further person 61 can then coordinate help for the accident victim 8. For example, in an emergency center, the location of people 8 who work on live or live electrical systems 10 may be known. For example, maintenance work on the electrical system 10 (as in FIG. 4) is planned and it is known when and where it is carried out. The protective device 1 can be assigned to a specific person 8 and can also have a unique identification (for example a mobile phone number). In this way, an incoming emergency call (also as a text message or an e-mail) from a protective device 1 can be assigned to a location and / or person 8 in the emergency center, with the help of a helper being able to be coordinated by the other person 61 in a targeted manner.
    The protective device 1 can also be equipped with a unit 72 for determining the position. For this purpose, for example, the unit 72 for determining the position, for example a GPS (Global Positioning System) sensor, can be arranged on the item of clothing 2 (as indicated by dashed lines in FIG. 6), or can be integrated therein, for example in intelligent clothing with integrated electronics. Of course, other satellite navigation systems are also possible, such as GALILEO. However, there are of course other possibilities for determining the position of a person 8 by means of a unit 72 for determining the position. For example, the availability of WLAN (Wireless LAN) networks could be used to draw a conclusion about the current position. A position could also be determined via a mobile radio network, for example by means of GSM location.
    However, the protective device 1 can also be connected to an external unit 71, which can carry out a position determination, as a unit 72 for position determination, as shown, for example, in FIG. Today's mobile phones or smart phones generally have a position determination integrated, so that a mobile terminal 66 can be used particularly advantageously as an external unit 71 for this purpose (as in FIG. 6). The external unit 71 can also be a GPS receiver. The protective device 1 can thus be connected to the external unit 71 via a suitable data connection 65, for example Bluetooth, in order to obtain the current position of the person 8 from the external unit 71. For the connection, a transmission unit 64 could again be provided in the protective device 1, for example. The current position can be stored in the protective device 1, preferably in the evaluation unit 6 of the protective device 1, preferably with further details of a power accident, such as date, time, duration of the body current, level of the current flow, in order to enable a later evaluation. The current position is understood to mean both geocoordinates and a specific location. Since many external units 71 often also have a location function, the location can also be used directly as the current position.
    -1011 /: -3
    AR-4011 AT
    Of course, the current position or the current location can also be transmitted to the remote location 60 (as in FIG. 4 or 5) in order to support the coordination of help for the accident victim 8. The current position or the current location could also be transmitted to the remote location 60 at certain time intervals in order to always know a current position or a current location of the person 8.
    Independently of the other functions of the protective device 1, the position or location of the person 8 can be recorded and stored in the protective device 1, for example for documentation of power accidents or for statistical records or evaluations of power accidents. In addition, further details such as date, time, duration of power contact, etc. can be saved.
    It is obvious that when a remote location 60 is notified by the protective device 1 in the event of a power accident, additional information can of course also be transmitted, for example data from further sensors 9 on the protective device 1 relating to the condition of the person 8, for example the position of the person 8 (case , Person lies), pulse, ECG, breathing. Such additional information can be important for the coordination of aid and the rescue operation.
    However, the remote location 60 can of course also be automated to the extent that in the event of an incoming message from a power accident to a person 8, certain actions are taken automatically, for example the notification of an emergency medical service or helper, possibly also with the specific position or location of the person 8, possibly also with other existing data. In this case, the additional person 61 would not be absolutely necessary.
    For this purpose, the remote location 60 could also determine one or more helpers in the vicinity of the person 8 involved in the accident and inform them specifically about the power accident. Preference meadow is determined the helper who is closest to the accident victim 8 locally. For this purpose, the helper can be equipped with a communication unit, for example a cell phone or smart phone, which is contacted by the remote location 60 or by another person 61 in the remote location 60 with a corresponding message. The message could be an SMS, email, or something similar, or a call.
    A helper in the vicinity of the accident victim could be determined by knowing the positions of all the helpers in question in the remote location 60. For example, the current location could be continuously transmitted to the remote location 60 at predetermined intervals via the helpers' communication units. Proximity could also be determined in such a way that it is determined whether a communication unit of the accident victim 8, for example a mobile terminal 66, can exchange messages with a communication unit of a helper, for example via Blue /: -3
    AR-4011 AT tooth, or whether both can receive the same WLAN network. This could also be continuously communicated to the remote location 60 by the respective communication unit so that the remote location 60 always has a current status.
    It is also conceivable that several people are in the area of the work at the same time to carry out work on live parts. In such situations, a person's 8 electrical accident may not be noticed by other people in the vicinity, even in the immediate vicinity. This can also put other people at risk, for example because they touch the person 8 in the circuit or because they also touch the live part. Apart from this, an efficient action to rescue the accident victim 8 or to protect other people in the vicinity, for example by switching off or short-circuiting the circuit or by pushing away the accident victim 8, is only possible if at least one other person in the vicinity is aware of the power accident obtained. A protective device 1 according to the invention can also be used advantageously in such cases, as is described by way of example with reference to FIG.
    It is assumed that several people 8a, 8b, each with a protective device 1a, 1b, are in the vicinity of a live component and that the protective devices 1a, 1b are in communication connection. For this purpose, each protective device 1a, 1b can be designed with a communication unit 80a, 80b in order to be able to set up a communication connection 81, for example by means of Bluetooth. The communication connection 81 can, however, also be established indirectly, for example as explained in FIG. 5, via a mobile terminal 66 of a person 8a, 8b. However, the communication units 80a, 80b of the two protective devices 1a, 1b do not have to communicate directly with one another. It would be conceivable, for example, that a communication center 82 be set up in the area of the work, with which the individual protective devices 1a, 1b connect via their communication units 80a, 80b, as indicated in FIG. The communication link 81 is then established via the communication center 82. The communication link 81 can be permanently set up or can also be set up on a case-by-case basis. If a protective device 1a triggers an emergency signal S for a person 8a because this person 8a gets into a circuit, the at least one further person 8b in the vicinity is communicated via the communication unit 80a of the protective device 1a via the communication connection 81 and the communication unit 80b of the protective device 1b above it informed. For this purpose, a corresponding signaling unit, for example an acoustic, visual or palpable alarm, can also be provided on a protective device 1. If a protective device 1 is additionally provided with a unique identifier, it can also be transmitted which protective device / 23
    AR-4011 AT device 1 is affected in order to be able to find the accident victim 8a more easily. Aid for an accident victim 8a can thus be considerably accelerated.
    Instead of a communication center 82 set up in the area of the work, the communication described could also take place via a (arbitrarily) distant location 60 as a communication center, for example as described in FIG. 4 or 5.
    The protective device 1 of the person 8 involved in the accident, or a communication unit 80 of the protective device 1 or also an external device 71 coupled to it, for example a mobile telephone which the person 8 is carrying, can also surround with a loud acoustic signal, optionally also with a spoken warning text Also make untrained and unfit people aware of the danger and the help needed. An acoustic warning such as "Warning - power accident - this person is under voltage. Don't touch the person. Interrupt the circuit or knock the person off the circuit ”or“ Warning - electrical accident - this person received an electric shock. Touchable parts under voltage are nearby ”would be conceivable, for example.
    In the case of a radio connection for transmitting the output signal S from the protective device 1 to a radio receiver 90 of the electrical system 10, it can of course be checked, either continuously or at least at the beginning of the work, whether there is a radio connection at all. If not, a corresponding alarm can be displayed on the protective device 1, for example acoustically, visually or palpably. The same naturally applies if a low charge state of an energy supply of the protective device 1 is determined in the protective device 1.
    In certain applications, in particular in buildings, the radio connection between the protective device 1 and the radio receiver for receiving the emergency signal can break off easily and unrecognized, in particular when the person wearing the protective device 1 is moving. This can lead to false triggers if a missing radio signal in the radio receiver triggers a switching action. In the worst case, the protective person 1 no longer provides protection for the person wearing 8 without being noticed.
    The electrical system 10 could also be configured differently depending on the danger of the application, so that an interruption of the radio connection in a very dangerous application forces a switch-off process, and does not do so in a less critical application.
    Apart from this, at least two radio receivers 90a, 90b, each with an emergency signal input 21 for receiving an emergency signal S from the protective device 1, can be provided in the work area of the person 8, as shown in FIG. A radio receiver 90a, 90b can be connected to the security module 22 of the electrical system 10 as described above in order to send an emergency signal S from the protective device 1 to /: -3
    Detect AR-4011 AT and trigger a switching operation. In this case, the emergency signal input 21 would be arranged externally from the electrical system 10.
    The protective device 1 can be in a bidirectional radio connection with the radio receivers 90a, 90b. This means that a signal receiver 91 is provided on the protective device 1 in order to be able to receive a radio signal F which is emitted by a transmitter 92a, 92b in the radio receiver 90a, 90b. The signal receiver 91 is preferably arranged on the item of clothing 2 or integrated in the item of clothing 2 and connected to the evaluation unit 6 or another computing unit in the protective device 1. The radio signal F from a radio receiver 90a, 90b is emitted continuously or at least at regular intervals, and is received by the signal receiver 91 of the protective device 1. The protective device 1 is thus able to evaluate the signal quality of the radio channel between the protective device 1 and a radio receiver 90a, 90b. The protective device 1 can thus decide via which of the available radio channels the emergency signal S is sent.
    A large number of such radio receivers 90a, 90b can be arranged in a building or system, and the protective device 1 selects a radio receiver 90a, 90b, for example the radio channel with the best signal quality, in order to transmit the emergency signal S thereover. In this way, the person 8 wearing the protective device 1 can move through the building or the system without losing the radio connection.
    In principle, however, it is irrelevant to the invention where the decision is made about which radio receiver 90a, 90b is to be used for communication. The decision could be made in the signal receiver 91, in the radio receivers 90a, 90b or in the security module 22 or elsewhere.
    -1415 /: -3
    AR-4011 AT
    权利要求:
    Claims (26)
    [1]
    claims
    1. Electrical system with a plurality of electrical circuits (51a, 51b), each with a switch (54a, 54b) for switching the associated circuit (51a, 51b) to a voltage-free state, characterized in that a safety module (22 ) is provided, an emergency signal input (21) being provided on the security module (22), and the security module (22) receiving an external emergency signal (S) via the emergency signal input (21) a configured first circuit (51a) via the assigned switch ( 54a) switches voltage-free and at least one further circuit (51b) switches voltage-free via the assigned switch (54b) if the safety module (22) still receives the emergency signal (S) at the emergency signal input (21) after a predetermined period of time.
    [2]
    2. Electrical system according to claim 1, characterized in that a hierarchy of circuits (51a, 51b) is configured in the safety module (22), according to which the safety module (22) switches the circuits (51a, 51b) voltage-free.
    [3]
    3. Electrical system according to claim 2, characterized in that a plurality of circuits (51a, 51b) can be switched voltage-free at the same time in a hierarchical level.
    [4]
    4. Arrangement for performing work on an electrical system (10) according to one of claims 1 to 3 by a person (8), characterized in that the person (8) wears a protective device (1) for detecting an electrical body current, which in the event of a detected impermissible body current, outputs an emergency signal (S) and transmits it to the emergency signal input (21) of the security module (22).
    [5]
    5. Arrangement according to claim 4, characterized in that the protective device (21) comprises an item of clothing (2) and an evaluation unit (6), the person (8) wearing the item of clothing (2) and the item of clothing (2) with at least one Sensor (3) is equipped for detecting the body current, and the evaluation unit (6) evaluates a signal detected with the at least one sensor (3) and outputs the emergency signal (S) if an inadmissible body current is detected.
    [6]
    6. Arrangement according to claim 5, characterized in that the protective device (1), preferably the item of clothing (2), comprises at least one further sensor (9) which detects and detects a further state of the person (8) wearing the protective device (1) / or a unit (72) for determining the position or determining the location of the person (8).
    -1516 /: -3
    AR-4011 AT
    [7]
    7. Arrangement according to one of claims 4 to 6, characterized in that a remote location (60) is provided, which is informed in the event of a power accident by the protective device (1).
    [8]
    8. Arrangement according to claim 7, characterized in that the protective device (1) of the remote location (60) also transmits data of the at least one further sensor (9) and / or the position or location of the person (8).
    [9]
    9. Arrangement according to claim 7 or 8, characterized in that the remote location (60) coordinates help for the person (8) after an electrical accident, preferably by the remote location (60) contacts a helper and informs about the electrical accident.
    [10]
    10. Arrangement according to one of claims 4 to 9, characterized in that there is at least one further person (8b) in the area of the work by the person (8a), who also carries a protective device (1b), the protective device (1a) of the person (8a) and the protective device (1b) of the at least one further person (8b) are in communication connection (81), the protective device (1a) of the person (8a) being the protective device (1b) of the at least one further person (8b) informed about a power accident of the person (8a) via the communication link (81).
    [11]
    11. The arrangement according to claim 10, characterized in that the protective devices (1a, 1b) each comprise a communication unit (80a, 80b) for establishing the communication connection (81).
    [12]
    12. The arrangement according to claim 11, characterized in that a communication center (82) is provided in the area of the work of the person (8a), which is connected to the communication units (80a, 80b) in order to establish the communication connection (81).
    [13]
    13. Arrangement according to one of claims 4 to 12, characterized in that the protective device (1) outputs an acoustic warning and / or an acoustic warning text in the event of a power accident.
    [14]
    14. Arrangement according to one of claims 4 to 13, characterized in that the protective device (1) transmits the emergency signal (S) via radio to the emergency signal input (21) and issues an alarm in the event of a missing radio connection.
    [15]
    15. Arrangement according to one of claims 4 to 14, characterized in that the security module (22) is connected to a plurality of radio receivers (90a, 90b), each with an emergency signal input (21), the protective device (1) comprising a signal receiver (91) which receives a radio signal (F) emitted by the radio receiver (90a, 90b), with which the signal quality of a radio channel between the protection, -16 ·
    17 /: -3
    AR-4011 AT direction (1) and a radio receiver (90a, 90b) can be evaluated and the radio channel with the best signal quality for sending an emergency signal (S) can be selected.
    [16]
    16. A method for performing work by a person (8) on an electrical system (10) according to one of claims 1 to 3, characterized in that a security module (22) with an emergency signal input (21) for receiving an external emergency signal (21) switches a configured first circuit (51a) free of voltage via the assigned switch (54a) and switches off at least one further circuit (51b) via the assigned switch (54b) if the safety module (22) still sends the emergency signal (S) after a specified period of time at the emergency signal input (21).
    [17]
    17. The method according to claim 16, characterized in that a hierarchy of circuits (51a, 51b) is configured in the security module (22), according to which the security module (22) switches the circuits (51a, 51b) voltage-free.
    [18]
    18. The method according to claim 17, characterized in that in a hierarchy level (A, B, C) a plurality of circuits (51a, 51b) can be switched voltage-free at the same time
    [19]
    19. The method according to any one of claims 16 to 18, characterized in that the person (8) carries a protective device (1) for detecting an electrical body current, which outputs an emergency signal (S) in the event of a detected impermissible body current and to the emergency signal input ( 21) of the security module (22).
    [20]
    20. The method according to claim 19, characterized in that the protective device (1) informs a remote location (60) in the event of a power accident.
    [21]
    21. The method according to claim 19, characterized in that the protective device (1) of the remote location also transmits data of at least one further sensor (9) on the protective device (1) and / or the position or location of the person (8).
    [22]
    22. The method according to claim 20 or 21, characterized in that help is coordinated for the person (8) after a power accident via the remote location (60), preferably in that the remote location (60) contacts a helper and informs about the power accident.
    [23]
    23. The method according to any one of claims 16 to 22, characterized in that there is at least one other person (8b) in the area of work by the person (8a), who also wears a protective device (1b), with the protective device (1a a communication link (81) is established for the person (8a) and the protective device (1b) of the at least one further person (8b), the protective device (1a) of the person (8a) for the protective device (1b) of the at least one further person ( 8b) via the communication link (81) about a power accident involving the person (8a).
    , -17
    18 /: -3
    AR-4011 AT
    [24]
    24. The method according to any one of claims 19 to 23, characterized in that the protective device (1) issues an acoustic warning and / or an acoustic warning text in the event of a power accident.
    [25]
    25. The method according to any one of claims 19 to 24, characterized in that the
    5 protection device (1) transmits the emergency signal (S) via radio to the emergency signal input (21) and issues an alarm in the event of a missing radio connection.
    [26]
    26. The method according to any one of claims 19 to 25, characterized in that the security module (22) is connected to a plurality of radio receivers (90a, 90b), each with an emergency signal input (21), the protective device (1) being a signal receiver
    10 (91) which receives a radio signal (F) emitted by the radio receiver and uses the radio signal (F) to evaluate the signal quality of a radio channel between the protective device (1) and a radio receiver (90a, 90b) and the radio channel with the best signal quality is selected to send the emergency signal (S).
    , -18
    19 /: -3
    Adaptive Regelsysteme Gesellschaft m.b.H.

    20/23
    Adaptive Regelsysteme Gesellschaft m.b.H.

    21/23
    Adaptive Regelsysteme Gesellschaft m.b.H.


    22/23
    Adaptive Regelsysteme Gesellschaft m.b.H.
    4.4
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    同族专利:
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    WO2019243381A1|2019-12-26|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3784842A|1972-02-03|1974-01-08|F Kremer|Body current activated circuit breaker|
    WO2018104440A2|2016-12-09|2018-06-14|Eaton Industries Gmbh|Switch cabinet|
    US4310770A|1979-07-25|1982-01-12|Ohio Agricultural Research And Development Center|Demand load control|
    DE3903025A1|1989-02-02|1990-08-09|Asea Brown Boveri|Method for protecting individuals|
    DE4438063A1|1994-10-25|1995-05-24|Rene Haimerl|Wire free protection apparatus for work on voltage carrying parts|
    US5844326A|1997-06-23|1998-12-01|Cruising Equipment Company, Inc.|Managed electrical outlet for providing rank-ordered over-current protection|
    WO2018114304A1|2016-12-23|2018-06-28|Omicron Electronics Gmbh|Apparatus and method for protecting a person from an electrical signal|DE102020114216A1|2020-05-27|2021-12-02|Westnetz Gmbh|Voltage warning system, voltage warning system and electrical system|
    法律状态:
    2020-08-15| HA| Change or addition of new inventor|Inventor name: WERNICH DE VILLIERS, AT Effective date: 20200702 Inventor name: ULRICH KLAPPER, AT Effective date: 20200702 |
    优先权:
    申请号 | 申请日 | 专利标题
    AT505132018A|AT521135B1|2018-06-21|2018-06-21|Electrical system with a large number of electric circuits and electric shock protection equipment|AT505132018A| AT521135B1|2018-06-21|2018-06-21|Electrical system with a large number of electric circuits and electric shock protection equipment|
    PCT/EP2019/066118| WO2019243381A1|2018-06-21|2019-06-19|Electrical system comprising a plurality of electric circuits and anti-current protection equipment|
    US17/254,593| US20210128909A1|2018-06-21|2019-06-19|Electrical system comprising a plurality of electric circuits and anti-current protection equipment|
    EP19732337.1A| EP3811480A1|2018-06-21|2019-06-19|Electrical system comprising a plurality of electric circuits and anti-current protection equipment|
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