• 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:
    The system for synchronizing the system time of a blind controller (9) comprises a timer of the blind controller (9), which defines a system time, and a communication device (13) which is designed to receive a reference time (3) that is in a communication network from a further communication device (5) is transmitted to the communication device (13).
    公开号:CH713827B1
    申请号:CH00917/17
    申请日:2017-07-14
    公开日:2021-08-31
    发明作者:Rohner Markus
    申请人:Griesser Holding Ag；
    IPC主号:
    专利说明:

    The invention relates to a system and a method for synchronizing the system time of a blind control with a reference time according to the features of claims 1 and 6.
    Shading devices such as blinds in buildings are widely controlled automatically by control devices in these buildings. Such shading devices can be controlled as a function of a large number of influencing factors. Influencing factors can, for example, be measured variables recorded by sensors and / or data stored in a memory of the blind control, in particular setpoint values or generally comparison variables for the measured variables. Below are some examples of such influencing factors:Orientation or cardinal direction of a facade on which a window or generally a building recess with a shading device is located;Dimensions of the building recess and its relative position on the facade;Position of the sun or the direction of the sun's irradiation in the case of the building recess depending on the time of day and the season;Areas or directions from which no solar radiation is possible in the building recess, e.g. due to objects casting shadow or due to the position of the horizon;Setting options for the shading device (for example, in the case of slat blinds, lowering and raising the curtain and adjusting the angle of inclination of the slats) and their effect on direct sunlight in the building recess;Weather influences such as wind, rain, hail, clouds, temperature, etc.Time of day and season (especially local time or local time)
    A blind control comprises a program memory in which processing rules are stored which specify the processing of input variables into output variables. A blind control can be designed to take into account the individual needs of people in a room behind the building recess, for example by giving priority to manual settings on an operating device as input variables. Entries on control elements are also influencing factors that are taken into account when controlling disturbances.
    Various functions of a shading control, such as the calculation of the position of the sun or the direction of the sun's rays at a certain time of day and year, require an exact specification of the date and the local time at the respective geodetic position of the building. Local time is the time of the sun at a specific location, i.e. the time at which the sun is in the meridian at 12 noon or the position of the sun is highest above the horizon. The local time can in particular be calculated from the coordinated universal time (UTC) and from the geographical location of the respective location. Coordinated Universal Time (UTC) is a global reference time that corresponds to the local time at the prime meridian. The local time calculated in this way from the global reference time is a local reference time that can be used at the respective location.
    Alternatively, the local time can also be derived, for example, from the time of the respective time zone and the geodetic position of the building. The geodetic position is defined by the longitude and latitude of the building location.
    From EP 1069277A2 a sun protection system with a controller is known in which a radio clock receiver receives the signals emitted by a radio clock and thus supplies a reference time with date. In this way, deviations in the rate can be avoided, as they occur with independent clocks or timers over the years. To receive time signals, such radio clock receivers include an antenna at a suitable location. The geographical location of the sun protection system can, for example, be determined using a GPS receiver and saved in the control. If such a GPS receiver is an integral part of the sun protection system, it must also be arranged at a location in the building where it can receive the signals from the GPS satellites, for example on the roof of the building.
    From WO 2007 / 006775A1 a control device for blinds on buildings is known which comprises a receiving means for signals from a global position detection system (GPS). The signals transmitted by the satellites of the GPS system and received by the receiving means constantly provide a reference time with date. In addition, the geodetic position of the receiving means can be determined from the signals received from several satellites.
    Such known devices for synchronizing the system time of a controller with a reference time with date have the disadvantage that they can only be used to a limited extent. The weak radio signals from satellites or from a radio clock transmitter that may be far away can only be reliably received outdoors. The effort and cost of providing suitable receiving means for receiving the time signals is comparatively high. In addition, the accuracy and repetition rate of such time signals is much higher than is necessary, for example, to synchronize the system time of a blind control.
    It is therefore an object of the present invention to provide a system and a method for inexpensive and simple synchronization of the system time of a blind control with sufficient accuracy with a current reference time.
    This object is achieved by a system and a method for synchronizing the system time of a blind control according to the features of claims 1 and 6.
    The term “blind control” is to be understood broadly in connection with the present invention. It generally comprises a controller which is designed to control technical devices, in particular any desired shading devices in a building.
    The system time is provided by a timer of the blind control. The system time usually includes a time with date or, in general, a first time within a day time interval (determined by the earth's rotation) and a second time within a year time interval (determined by the rotation of the earth around the sun).
    This system time can essentially correspond to the local time at the building location. Alternatively, the system time can also have a known offset to local time. This is the case, for example, if the system time corresponds to coordinated universal time (UTC) or, alternatively, to the time (with or without taking daylight saving time into account) in the time zone of the building location.For a better understanding, the explanation of the invention takes place by way of example on the assumption that the system time corresponds to the local time at the building location. The deviation of the system time from the actual local time or the local reference time should be as small as possible, for example less than 1 minute, preferably less than 30 s. Since timers that define a system time have path differences compared to the reference time, the system time of such timers must be regularly synchronized with the reference time. For example, the current value of the local reference time can be adopted as the new current value of the system time.The invention makes use of the consideration that a global or local reference time, which is provided by a timer at a base station, can be transmitted from the base station to local blind controls with sufficient accuracy by means of a communication device. The clock of the base station is, for example, an NTP server and is preferably synchronized with an atomic clock.
    The time delays in the transmission of the global and / or local reference time are generally small and are, for example, of the order of magnitude of a second. Even if delays in the order of magnitude of 30s had to be expected in the data transmission, this would still be tolerable. If a blind control receives a reference time, this is preferably processed with priority, i.e. the system time is synchronized with the smallest possible delay. This way, deviations of the system time from the reference time can be minimized. The processing rules for acquiring the reference time and for synchronizing the system time are stored in the program memory.
    The communication takes place in a communication network according to a specified communication protocol such as UDP / IP (NTP / SNTP) or LoRaWAN. The data can be transmitted in particular via electrical conductors, optical fibers or by means of electromagnetic waves such as radio waves, e.g. via satellite or mobile radio according to a mobile radio standard such as GSM, GPRS, UMTS or LTE. This particularly includes communication in proprietary networks on 868MHz and 433MHz.
    At the local location of a blind control, the time information can be received e.g. from a router or generally a receiver and made accessible to the blind control via a local, wired or wireless network (e.g. WLAN). Alternatively, the blind control itself can comprise a receiver for data from the base station.
    The communication between the base station and one or more directly addressable routers or receivers of blind controls at local building sites can be unidirectional or, alternatively, bidirectional. Additionally or alternatively, the base station can be designed to transmit data with a global or local reference time, preferably simultaneously, to several or all participants within the network. A specific multicast or broadcast telegram is sent to predetermined participants within the network. In particular, the network can be designed as a VPN network, for example. The blind controls at the local locations can be defined as local addresses in this network. A server in this network compares its time with a time server via NTP and provides the global or local reference time for the blind controls or the local participants. The identity of the transmitter is ensured by means of authenticated telegrams. Alternatively, the base station could also broadcast a global or local reference time via a preferably secured radio link (e.g. LoRa). Authentication and / or encryption algorithms ensure that the system works properly.
    Optionally, data with the respective current global or local reference time can be transmitted from the base station to the local blind controls that have subscribed to this service according to a predetermined or selectable time pattern. In particular, it can be provided that time information is transmitted as standard, e.g. daily, weekly or monthly from the base station to blind controls. Blind controls that are designed for bidirectional communication with the base station can, if necessary, request the transmission of the global or local reference time from the base station at any time. If only the global reference time is transmitted, the blind control calculates the local reference time using data from the local geographic location, for example. This enables the immediate synchronization of the system time with the local reference time, e.g. during commissioning or after a restart of the blind control.
    The base station preferably comprises a database in which essential information such as configuration data of blind controls of buildings at different locations is stored.Because the blind controls can be individually addressed, the base station can transmit further data, in particular further individual configuration data, to the respective blind controls in addition to the reference time. Such configuration data can in particular contain data for the basic configuration of a blind control, e.g. data on the geodetic position of the respective building location, data on the alignment of facades on the building in question with regard to the cardinal points, data on the width and height of windows and their shading devices as well as their location on a specific facade Data relating to directions from which no solar radiation is possible in certain windows due to objects casting shadows and / or due to the horizon, etc. Such data, which relate to the basic configuration of a blind control, usually only need to be transmitted once to the respective blind control. There they are saved in a non-volatile memory of the blind control. The data, which include the current global or local reference time, are also configuration data. In contrast to the data of the basic configuration, the data of the current global or local reference time are transmitted repeatedly (e.g. daily) from the base station to the blind control in accordance with specifiable rules. A global reference time is preferably transmitted from the base point to the blind controls, since this is not dependent on the geodetic position of the individual buildings. It is therefore sufficient to send only one message with the information of the global reference time, preferably at the same time, to all participating subscribers. Each blind control can calculate the local reference time applicable at the respective location from the global reference time.
    If the communication device is set up for bidirectional communication, each blind control can send individual requests for the transmission of the desired reference time or other configuration data to the base station.
    Alternatively or additionally, the base station can also be designed to transmit the reference time to blind controls by means of digital audio broadcasting (DAB). In this case, the blind controls comprise a DAB receiver which is designed to detect at least the reference time (UTC) transmitted in encoded form.
    Alternatively or additionally, the blind control can also receive other signals that include information of a reference time, for example mobile radio signals such as GSM emergency signals or signals emitted by satellites that are not suitable or intended for location purposes.
    The blind control is preferably designed to receive signals with information of a reference time on several different communication paths. If the transmission quality of the signals on one of the communication channels is insufficient, the reference time can be transmitted to the controller via another communication path.
    The invention is briefly explained below with the aid of a few figures. 1 shows a system with a base station and a building with a first synchronizable blind control, FIG. 2 shows a system with a base and a building with a second synchronizable blind control, FIG. 3 shows the system from FIG. 1 with an additional mobile base, FIG base station expanded by a database.
    In the schematic arrangement in Figure 1 comprises a base station 1 a time base or a timer with a global reference time 3, which is synchronized for example with an atomic clock, and with a first communication device 5. A building 7 at a certain geodetic location is representative of a A plurality of such buildings 7 are shown at different geodetic locations. A blind control 9 for controlling at least one blind 11 is arranged in the building 7. The operative connection between the blind control 9 and the blind or blinds 11 is symbolically represented by a broken line 10. The blind control 9 comprises a second communication device 13 for communication with the first communication device 5. This communication link, represented symbolically by a broken line 15, enables at least a unidirectional transmission of the global reference time 3 or a local reference time 3 derived therefrom from the base station 1 to each blind control 9 the base station 1 unique communication addresses of each of the blind controls 9 are stored. Communication can take place via the Internet, for example. The communication devices 5, 13 are preferably designed for bidirectional communication. Each of the second communication devices 13 can thus, if necessary, request the transmission of the global or local reference time 3 or other data to the first communication device 5 of the base station 1.
    The arrangement in FIG. 2 corresponds to that in FIG. 1 except for the following difference: The blind control 9 itself is not set up for direct communication with the base station 1. This function is taken over by a second communication device 13 which is independent of the blind control 9 and which in turn is again in communicative connection with the blind control 9, which is symbolically represented by a further broken line 12.
    The arrangement in Figure 3 corresponds to that of Figure 1 except for the following difference: The communication between the first communication device 5 and the second communication device 13 does not take place directly, but indirectly via a relay station 17, which can communicate analogously to the second communication device 13 with the first communication device 5, and which can communicate with the second communication device 13 analogously to the first communication device 5.
    The relay station 17 can be designed to forward data received from the first communication device 5 to the second communication device 13 without delay. The same applies in the opposite direction to the forwarding of data from the second communication device 13 to the first communication device 5. In this way, different communication means such as WLAN and mobile radio can be combined with one another for communication.
    The relay station 17 preferably has its own time base, which can be synchronized with the global or local reference time 3 in a manner analogous to that of the blind control 9. Additional data such as configuration data for blind controls 9 in one or more buildings 7 can optionally also be stored in a memory of the relay station 17. The relay station 17 can be designed, for example, as a stationary server, which can be located in particular at the location of one of the buildings 7 or, alternatively, at a distance therefrom. The relay station 17 can optionally be integrated into a central weather station, which includes one or more sensors for detecting one or more environmental parameters such as wind direction, wind speed, outside temperature, brightness, global radiation, humidity and precipitation. Such central weather stations can functionally be connected to a blind control 9 or optionally be designed directly as a blind control 9. As a rule, such weather centers are arranged on the roof of a building 7, where they are exposed to the weather and can optimally record the environmental parameters. The relay station 17 can alternatively also be designed to be mobile. For example, a smartphone with a corresponding app can be used as a mobile relay station 17. This is particularly advantageous when a blind control 9 is put into operation. In this case, a service technician can transmit all relevant data including the global or local reference time 3 from the mobile relay station 17 to the blind control 9.
    The arrangement in FIG. 4 corresponds to that in FIG. 1 except for the following difference: The base station 1 additionally includes a database 19 in which configuration data for blind controls 9 in one or more buildings 7 are stored. This enables such controls 9 to be configured or changed in a simple manner.
    The special features and effects of the different embodiments according to FIGS. 1 to 4 can also be combined with one another.
    权利要求:
    Claims (6)
    [1]
    A system for synchronizing the system time of a blind controller (9) with a reference time (3), comprising a timer of the blind controller (9) which defines the system time, and a device with processing rules of the blind controller (9) for synchronizing the system time with the reference time (3), characterized in that the system for providing the reference time also comprises a communication device (13) which is addressable in a communication network and comprises a receiver for receiving data according to a communication protocol in which rules for transmitting a global and / or local reference time (3) are defined, and that this communication device (13) is included in the blind control (9) or is in communicative connection with it.
    [2]
    2. System according to claim 1, characterized in that the device is designed to synchronize the system time with the reference time (3) with priority over other processes when the reference time (3) is received.
    [3]
    3. System according to one of claims 1 or 2, characterized in that the communication device (13) is designed to receive data according to at least one of the following types of communication: Internet, radio waves or long range wide area network.
    [4]
    4. System according to one of claims 1 to 3, characterized in that the receiver of the communication device (13) is designed to receive further data.
    [5]
    5. System according to claim 4, characterized in that the further data comprise configuration data for the blind control (9).
    [6]
    6. A method for synchronizing the system time of a blind control (9) with a system according to claim 1, characterized in that a first communication device (5) in one of the communication networks transmits a reference time (3) to the communication device (13) of the system in this communication network , and that the device with processing rules of the blind control (9) sets the system time according to the reference time (3) when receiving the reference time (3).
    类似技术:
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    同族专利:
    公开号 | 公开日
    CH713827A2|2018-11-30|
    CH713825A1|2018-11-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2793518B1|1999-05-11|2001-08-17|Bubendorff Sa|METHOD FOR MANAGING THE OPERATION OF MOTORIZED CLOSING SYSTEMS OF A BUILDING|
    WO2014074308A1|2012-11-07|2014-05-15|Mechoshade Systems, Inc.|Automated shade control system utilizing brightness modeling|
    US8975778B2|2009-07-30|2015-03-10|Lutron Electronics Co., Inc.|Load control system providing manual override of an energy savings mode|
    US9470040B2|2014-04-08|2016-10-18|David R. Hall|Pull cord for controlling a window covering|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH00703/17A|CH713825A1|2017-05-30|2017-05-30|Blind control, system and method for synchronizing the system time of a blind control.|EP18173494.8A| EP3409877A1|2017-05-30|2018-05-22|Blinds control, system and method for synchronizing the system time of a blinds control|
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