• 专利附录
  • 专利说明
  • 权利要求
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    • 专利摘要:
    1511753 Elevator safety system INVENTIO AG 19 May 1976 [21 May 1975] 20688/76 Heading G3N A safety device is used, e.g., to stop elevator movement if the lift doors are not closed correctly or for a railway protection system. With the lift cage stationary and the door closed, AND gate V11 receives a binary 1 and OR gate V12 receives a 0. Line LSiO is 0, store SPO output is 0, which is inverted and provides another 1 to AND gate V11 which gives a 1 output. Hence NOR gate V13 and AND gate V15 give a 0 output, store SP11 is not set, line LSi2 is 0, AND gate V14 gives a 0 output and so does line st L thus defining an installation not switched off signal. If st L is binary 1, the installation is switched off, though a temporary disturbance does not cause switch off due to delay element ZG. On initiation of a lift journey, LSiO is made binary 1 to prove the safety circuit before the doors close. Stores SP42 and SPO are set, and inhibit line SPL inhibits car movement for the test duration. This signal then passes through the circuitry and produces a 0 on line SPL if the circuitry is functioning correctly. If faults are present in the circuitry, SPL stays at binary 1 and car movement is inhibited. The circuitry can be implemented using NOR- techniques or in MOS logic with self-blocking MOSFET's.
    公开号:SU736869A3
    申请号:SU762359543
    申请日:1976-05-21
    公开日:1980-05-25
    发明作者:Клопш Херберт；Лоберт Клаус；Штамм Дитер
    申请人:Инвенцио Аг (Фирма)；
    IPC主号:
    专利说明:

    (54) DEVICE FOR ELEVATOR SAFETY
    I
    The invention relates to a lifting-transport equipment, in particular to safety devices, ensuring the safety of operation of elevators.
    A device for elevator safety is known, containing a logical element with two separate communication channels for equivalent and self-associated switching variables, with one channel having an AND-NOT element and the other OR-NOT as logical elements, and whose inputs are anti-rolling, switching variables in the form of rectangular voltages with a predetermined repetition rate, and the outputs are connected to a circuit controlled by control signals, performed on an electronic switching amplifier, whose power supply th is removed from the output of both logic elements and bonded to the output. the entrance of a similar analogous circuit, to the output of the last circuit is connected a node that controls the output signals and compares them with the control signals 1.
    However, when two defects appear in a logical block, for example, by
    one defect in both logic elements, and with such a state of inputs on the Signal, at which the anti-valence of OUTPUTS 11 may be present. signals or their equivalence, the device does not work, 1Espi both defects appear successively in time, then they can be detected due to
    10 sources of tell-tale signals changed by havdegos in time-control signal. If, however, defects appear simultaneously, the device does not detect them,
    IS
    Most closely to the proposed invention, by technical essence and achieved result, is a device for safety. Elevator, containing monitoring channels associated with buses — locking and controlling an elevator drive and including each connected in series switching unit, an EI circuit. and OR-NOT on the self-control unit, and the sources of the control signal, and the switch box of one of the control channels contains two contact
    30 information sensors, one of which is complete with ramikyu1di1UM, and the other with closing contacts 2,
    - This device is also unreliable s work.
    The purpose of the invention is to increase the reliability of the device during operation.
    It is achieved by the fact that the switching unit of each control channel contains logical elements AND and OR, in one of the control channels
       One of the inputs of the first of these elements is connected. with the first sensor of information, and the second. with the second sensor of information, in the other channel of the control, the input of the AND elements and the OR block of the Lucian unit and connected to the outputs of the corresponding elements of the first
     kinala control, exits -elements and and. .OR channel switching units. lv control is connected to the inputs of the elements. OR-NOT and AND equivalence circuits, the outputs of which through one and the other diodes are connected / with an elevator drive control, in
    which included even delay
    time, the self-control unit of each control channel contains triggers and a three-input and two-input AND elements, two inputs - the first one of which is connected directly and through the first diode to the output of the OR-NOT element of the equivalence circuit, the third one - with the blocking bus, and the second diode with output, equivalence element And circuit jMij, element outputs And block of the channel control itself
    the control unit is connected to the inputs of one of the flip-flops of this block, one of the outputs of which is connected to another input of the OR element of the switching unit of the same control channel, the self-control unit of the first control channel additionally contains an AND-NES element, one of the inputs of which is connected to the output of the second Trigger of this block the other with the second output of the first trigger, the first output of which is additionally connected, with one of the inputs of the second trigger, the other input of which is connected to the output of the first trigger of the second channel self-control unit warning light, one of the AND inputs I8 BPO: Single switch which is coupled to the output of AND-NO element of self-control unit controlling the first channel, the second channel unit self-monitoring
     Kshtrol. contains in addition the OR element, one of the inputs of which is combined with the output of the second trigger; egogr of the block connected by one
    from the inputs with the source of the control signal, the other with the output of the first TpHrlrepa, additionally connected to the second input of the second
     the trigger, and the output - with the bus bus and cable disconnect drive 736869
    and the elevator, and the device is equipped with an additional trigger, one of the inputs of which is connected to the output of the control source signal, performed on a pulse transformer and controlled by the contact door of the elevator door, the other to the first output of the first control channel, and the output is through the element NOT to the second input of the element AND the switching unit of the same control channel.
     FIG. 1 is a diagram of one channel monitoring device for elevator safety; . FIG. 2 is a diagram of a writeable device with several channels of control.
    The device contains channels 1.11 .4 control. Channel 1.1 controls two gates connected to the switch block, for example, with sensor lift door 2, 3 information, made in the form of door contacts. Information sensor 2 is connected to one, an input of a two-input element AND 4, and information sensor 3 outputs a signal to one input of a two-input element OR 5.1, The outputs 6.1-4.4 and OR 5.1-5.4 connect the equivalence switching units circuit Of the logical elements OR NOT 7.1-7.4 and the logic elements AND 8.1-8.4, each of which has two inputs connected respectively to the outputs of the coo-f corresponding logic elements AND 4.1-4.4 and OR 5.1-5.4. The outputs of the OR-NOT 7.1–7.4 and AND 8.1–8.4 logic elements each are connected via their own diode 9.1–9.4, 10.1–10.4 to the control bus 11 and the 12.112.44 self-control units.
    Blocks 12.1-12.4 self-monitoring consist of three-input 13.1-13.4 and two-input 14.1-14.4 logic elements And triggers 15.1-15.4 with two inputs and two outputs, triggers 16.1-16.4 with two inputs and one output AND logic elements AND-HE 17.1-17 , 3 with two entrances. The self-control unit of channel 1.4 includes the element OR 18.
    The inputs of the elements 13.1-13.4 are connected to the outputs of the logical elements OR NOT 7.1-7.4, with the control bus 11 and the control wire 19 serving as the blocking bus, and the inputs of the logic elements AND 14.1-14.4 to the outputs of the logic elements 6.1-8 , 4 and control bus 11, the inputs of logic elements AND 13.1-13.4 and 14.114 .4 are connected to one of the inputs of the trigger 15,1-15.4, one of the outputs of which in blocks 12.1-12.3 is connected to one of the inputs of the trigger 16.1-16.3, and also with one of the inputs of logical elements OR 5.1-5.3. Other outputs of the trigger 15 .1-15 .3 and the output of the trigger 16.1-16.3 in blocks 12.112 .3 are connected to both inputs of the logical e-cops AND-NOT 17,117 .3. . :
    Channels 1.2-1.4 of the control together with channel 1.1 form a sequential chain, with equivalence schemes 6.1, 6.4 in channels 1.11 .4, and also blocks 12.1-12.3 self-monitoring in channels 1.1-1.3 are identical. Channel 1.2, for example, is connected to the doors of an elevator shaft, while channel 1.3 performs any function, for example, it is used to control door bridging contacts. In channel 1.4, information from channels 1.1–1.3 was combined into the resulting information. The channels are connected in series so that each output of the AND-NE 17.1-17.3 logical element of the previous channel is connected via wires 20.120 .3 to one input of the AND 4.2-4.4 logical element of the subsequent channel. The outputs of the trigger 15.215 .4 channels 1.2-1.4 wires 21.121 .3 connected to the inputs of the trigger 16.1-16.3 previous channels 1.11 .3.
    A trigger 22 located outside the kangshov trigger with two inputs and one output is connected by wire 23 to one of the inputs to a source of a control signal (not shown in the diagram) made on a pulse transformer and controlled by a door lock contact, and connected to the other input by trigger 24 15.1, whereas its output is via wire 25, in which the logic element is NOT 26 with the second input of the logic element AND 4.1 (Fig. 1).
    One of the trigger inputs of the 16.4 channel 1.4 control with wire 27 is connected to wire 23, and its output goes to one input of the two-input element OR 13, the output of which is connected to the control wire 19 by wire 28 of the elevator drive disconnection. The second trigger input 16.4 is connected to the trigger output 15.4, which is connected to the second input of the element OR 18. Time delay link 29 outside the blocks, with the input activation delay connected to the control bus 11 and the output to the elevator drive control.
    The outputs of switching units of channels 1.1-1.3 are connected to the inputs of logic gates AND 4.4 and OR 5.4 of channel 1.4, the outputs of which, on the one hand, are connected to the inputs of the equivalence circuit 6.4 and, on the other hand, via wires 30.31 to the elevator drive.
    When the elevator car is stationary and the door is closed, information sensor 2 outputs a single signal to the AND element, 4.1, and information sensor 3 outputs a zero signal to the OR 5.1 logic element. Through conduit 23 (FIG. 2), the zero signal is fed to the input of trigger 22, the output of which therefore also has a zero signal. The element 26 turned on in wire 25 turns this signal
    o to the unit one, which is fed to the corresponding input of the logic element 4.1, due to which a single signal is obtained at its output. As a result of this exits
    5 of the OR-HE7 i 1 logical element and the AND 13.1 element have a zero signal, so the trigger 15.1 is not activated. The corresponding input of the logic element OR 5.1 goes to zero, which will be and. at its output, and hence the output of the logical element And 8.1. The control bus 11 thus has a level of zero, defined verbally. The drive is not turned on, whereas
    5 outputs of elements 4.1 and 5.1 are anti-valent (opposite in meaning) signals. If the anti-valence is violated, then the control bus 11 will receive a shutdown drive.
    0 single signal. If the violation has a short-term nature, for example, a short-term overlap of the information sensor signals, then the time delay link 29 prevents shutdown. Channels 1.2-1.4 work similarly to channel 1.1, and always the number of inputs is log. X of the elements AND 4.2-4.4 and OR 5.2-5.4 corresponds to the number
    0 wires with incoming information, and the corresponding inputs of logic elements 4.2-5, 2,4.3-5.3 and 4.4-5.4 receive single or, respectively, zero signals similarly to elements 4.1-4.2.
    five
    Since the inputs of the flip-flops 15.4 and 16.4 have a zero signal, there is also a zero signal at their outputs, as well as at the output of the OR 18 element. Control wire 19 and disconnection wire 28 are therefore a control signal that can be defined as motion ipaspreshenie.
    With proper functioning
    5 of all channels, signals through wires 30, 31 that go to control the drive and signal movement resolution, also show the anti-valence of the signals.
    0
    At the beginning of the movement, immediately before closing the doors from the source of the control signal, in order to control the device, a single signal is emitted via the wire 23.
    5 This signal triggers the trigger.
    16.4 and 22. As a result, a single signal appears at the output of the OR 18, which, during the monitoring process, disables motion through the disconnecting wire 28 and feeds channels from 1.1 to 1.4 through the control wire 19. At the output of trigger 2Y, a single signal also appears, which by wire 25 and through element 26 does NOT give a zero signal to the corresponding input of element AND 4.1. At the same time, outputs of element AND 4.1 and element OR-NOT 7.1 have zero or, respectively, a single signal and There is a single signal on all three inputs of the AND 13.1 logic element. Diode 10.1 prevents the occurrence of a single signal on both inputs of the AND 14.1 element. As a result, the trigger 15.1 is cocked, so that the single signal, on the one hand, returns the trigger 22 to the initial state via wire 24 and, on the other hand, passes the corresponding input of the OR 5.1 element. As a result, a unit also appears at its output, and since by that time, due to the resetting of the trigger 22 at the output of the And 4.1 element, there is a single signal, then. At the output of the AND 8.1 element, a single signal appears. At both inputs of the element And 14.1 there is also a single signgsh. as a result, the trigger 15.1 returns to its original position, and a single signal appears at its second (right) output, with a 9.0 of 9.1 preventing re-arming of this trigger. Since there is a single signal at the output of the trigger 16.1 t-akzhe, the output signal of the IS-NOT 17.1 e-DI signal goes to zero. This zero signal is transmitted through wire 20.1 further to channel 1.2, in which the same processes as in channel 1.1 now take place.
    After the triggering of the trigger 15.4 in the canape 1.4, the trigger 16.4 through the wire .21.3 and the trigger 16.3 in the channel 1.3 returns to its original position. At the same time, the signals on both units of the element OR 18 are changed from one to zero, from zero to one, so that wires 19 and 28 will then also be As before, they will have a single signal. Only after returning the trigger 15.4 to the initial position, the output of the element OR 18 receives a zero signal, which ends the monitoring process and removes the blocked movement.
    In case of defects, the device operates as follows.
    For example, both logical elements 4.1 and 5.1 of channel 1.1 were defective at the moment of the start of motion.
    defects, which could appear sequentially in time, or simultaneously. The inputs of these elements, connected to the sensors 2 /, 3 information, are, for example, zero or respectively one. Pr.provodu 25 control signal of the zero level falls on the second input of the logic element And 4.1, due to which its output should also become zero. Let the defect be such that the output carries a single signal. Since the second input of the element OR 5.1 receives a zero signal, its output signal must be Simulated single; let it be zero due to a defect. At the output of the element OR NOT 7.1, as a result of this, there will be a zero signal with which the trigger 15.1 cannot be locked, and a single signal does not fall on the element OR 5.1. Since the output of the AND 8.1 element and the second output of the trigger 15.1 both have a zero signal, the output of the NE-NE 17.1 element will not change state, so the control signal will not go to the channel 1.2 via the wire 20.1. As a result, there will be no control signal on the wire 20.3 in the order 1.4, so that the triggers 15.4 and 16.4 do not return to their original position and the wire 28 still has a single signal, prohibit the movement of the elevator.
    Further, it can be assumed that a defect appears in diode 10.1 of channel 1.1, and a defect of such a level is such that no current can flow through the diode either in the forward or in the opposite direction. If the inputs of elements 7.1-8.1 now receive single signals during monitoring, then a zero signal appears at the output of the OR-NOT 7.1 element, and a single signal appears at the output of the AND 8.1 element. At both inputs of the element and 14.1, therefore, there will be a zero and-single signal, and therefore its output will give a zero signal. As a result, the trigger 15.1 does not return to the initial state, due to which the signal at the output of the INE element 17.1 does not change the signal, thus the control signal: the signal will not go further, so that a single signal prohibiting movement remains on the wire 28. ,
    Suppose that both logic elements 7.2 and 8.2 of scheme 6.2 of equivalence of channel 1.2 have defects at the time of the start of movement, and they can appear one after the other or simultaneously. Connected to the door information sensors of the mine, they give out single or, respectively, zero signals. The wire 20.1 after checking the healthy channel 1.1 test zero signal is fed to the appropriate input
    element 4.2 and its output appears zero signal. Since there is no pilot pulse on the corresponding input of the OR 5.2 element, there is no signal at its output. As a result, the output of the element OR NOT 7.2 becomes single, and the output of the element AND 8.2 becomes zero. If additional, opposite signals are received at the output, the IGERS 15.2 and 16.2 connected via the AND 13.2 element will not be activated and the input of the IS-NOT 17.2 element connected to the output of the trigger 16.2 will remain, as it was, with zero signal. Thus, at the input, the signal does not change, so that the control signal does not go further. As a result, the trigger 15.4, 16.4 channel 1.4 does not return to the initial state, therefore the wire 28 and further has a single signal prohibiting the movement of the elevator.
    权利要求:
    Claims (2)
    [1]
    1. Accepted for Germany
     1537379, cl. 21 A 36/18, 1968.
    [2]
    2. US patent number 3587785, cl. 187-29. 197 (prototype).
    F
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    同族专利:
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    EG12851A|1979-12-31|
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    US4088900A|1978-05-09|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1055782B|1956-03-08|1959-04-23|Stahl R Fa|Safety device for electrically operated elevators|
    DE1537379C3|1967-09-22|1980-07-03|Siemens Ag, 1000 Berlin Und 8000 Muenchen|Safety circuit for performing logical links for binary switching variables and their complementary switching variables|
    DE2247276C3|1972-09-27|1981-06-11|Siemens AG, 1000 Berlin und 8000 München|Antivalence control device for a two-channel switchgear|
    US3961688A|1974-04-29|1976-06-08|Armor Elevator Company|Transportation system with malfunction monitor|DE2714903C2|1977-04-02|1986-07-24|Degussa Ag, 6000 Frankfurt|Method and device for continuous weighing or continuous volumetric metering of uncompacted silicon dioxide produced by pyrogenic means|
    DE2842370C2|1978-09-28|1987-06-11|Siemens Ag, 1000 Berlin Und 8000 Muenchen, De|
    ES2077759T3|1990-10-31|1995-12-01|Inventio Ag|DOUBLE CHANNEL FORK LIGHT BARRIER WITH A "FAILSAFE" CONSTRUCTION.|
    DE10341324A1|2003-09-08|2006-06-01|Siemens Ag|Method for detecting faulty antivalent push-button or switch signals|
    EP2838827B1|2012-04-20|2020-07-15|KONE Corporation|Testing apparatus and safety arrangement|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH653175A|CH594322A5|1975-05-21|1975-05-21|
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