WO2017042858A1 - エレベータの信号送信装置、及びエレベータの信号送信方法 - Google Patents

エレベータの信号送信装置、及びエレベータの信号送信方法 Download PDF

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Publication number
WO2017042858A1
WO2017042858A1 PCT/JP2015/075297 JP2015075297W WO2017042858A1 WO 2017042858 A1 WO2017042858 A1 WO 2017042858A1 JP 2015075297 W JP2015075297 W JP 2015075297W WO 2017042858 A1 WO2017042858 A1 WO 2017042858A1
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Prior art keywords
transmission
signal
destination
elevator
communication
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PCT/JP2015/075297
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English (en)
French (fr)
Japanese (ja)
Inventor
良紀 小西
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三菱電機株式会社
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Priority to CN201580082755.3A priority Critical patent/CN107949532B/zh
Priority to PCT/JP2015/075297 priority patent/WO2017042858A1/ja
Priority to JP2017538484A priority patent/JP6319520B2/ja
Publication of WO2017042858A1 publication Critical patent/WO2017042858A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path

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  • the present invention relates to an elevator signal transmission apparatus and an elevator signal transmission method for transmitting state information indicating an elevator state.
  • a modem that receives a signal from a monitoring device that collects elevator information at a remote location transmits information to a terminal in the monitoring center via a communication line such as a 3G line or an optical line.
  • a communication line such as a 3G line or an optical line.
  • a modem can be provided for each monitoring device, but there are some that reduce the number of communication lines and reduce the cost of the communication lines by sharing the modem and the communication line.
  • the modem is shared, one of a plurality of communication requests received by the modem from the monitoring device is executed, so that a waiting time is generated for the other communication requests.
  • an object of the present invention is to enable efficient signal transmission by appropriately transmitting a state signal indicating an elevator state to a transmission destination when there are a plurality of transmission destinations.
  • the elevator signal transmission device indicates a first transmission destination that transmits a first state signal indicating a state of the first elevator among a plurality of transmission destinations based on the state of the first elevator.
  • a first monitoring device that transmits a first destination signal and a second state signal that indicates a second elevator state among a plurality of destinations based on a second elevator state.
  • a second monitoring device that transmits a second transmission destination signal indicating a transmission destination of the first transmission destination, a first transmission destination signal and a second transmission destination signal, and a first transmission destination and a second transmission destination
  • a transmission control device that transmits a control signal indicating one of the transmission destinations, and when the transmission destination indicated by the control signal is the first transmission destination, the first status signal is transmitted to the first transmission destination, When the transmission destination indicated by the control signal is the second transmission destination, the second status signal is And a transmitter for transmitting a second transmission destination.
  • the elevator signal transmission method includes a first state signal indicating the state of the first elevator based on a signal indicating the state of the first elevator and a signal indicating the state of the second elevator.
  • a first state signal indicating the state of the first elevator based on a signal indicating the state of the first elevator and a signal indicating the state of the second elevator.
  • an efficient signal transmission can be performed by appropriately transmitting a state signal indicating the state of the elevator to the transmission destination.
  • FIG. 1 is a block diagram showing an elevator monitoring system in a first embodiment.
  • FIG. 3 is a block diagram showing the operation of the elevator monitoring system in the first embodiment.
  • 4 is a timing chart illustrating a communication order when two monitoring devices perform communication in the first embodiment.
  • 3 is a timing chart illustrating a communication order when three monitoring devices perform communication in the first embodiment.
  • 6 is a diagram illustrating information included in a communication request signal received by the modem control device according to Embodiment 1.
  • FIG. 1 is a block diagram showing an elevator monitoring system in a first embodiment.
  • FIG. 3 is a block diagram showing the operation of the elevator monitoring system in the first embodiment.
  • 4 is a timing chart illustrating a communication order when two monitoring devices perform communication in the first embodiment.
  • 3 is a timing chart illustrating a communication order when three monitoring devices perform communication in the first embodiment.
  • 6 is a diagram illustrating information included in a communication request signal received by the modem control device according to Embodiment 1.
  • Embodiment 1 The configuration of the remote monitoring system according to the first embodiment of the present invention will be described with reference to FIG.
  • This system is a remote monitoring system that monitors an elevator provided in a building 1 at a remote location.
  • the building 1 is provided with three elevators (not shown), and each of the three elevators controls a car on which passengers get on and off (not shown) and the movement of the car.
  • An elevator control panel (control device).
  • the elevator control panels corresponding to the three elevators are shown as elevator control panels 2a, 2b, and 2c in FIG.
  • the elevator control panels 2a, 2b, and 2c are provided inside an elevator machine room (not shown) or a hoistway (not shown).
  • the elevator control panels 2a, 2b, and 2c transmit state signals indicating the state of the elevator.
  • the status signal includes a communication request that can tolerate a long waiting time, such as data indicating the operation status of the elevator during normal operation, such as the number of activations, and a long waiting time, such as voice data or failure information at the time of passenger confinement Communication requests that cannot be accepted may be included.
  • a long waiting time such as data indicating the operation status of the elevator during normal operation, such as the number of activations
  • a long waiting time such as voice data or failure information at the time of passenger confinement Communication requests that cannot be accepted
  • the building 1 is provided with monitoring devices 3a, 3b, and 3c that are connected to the elevator control panels 2a, 2b, and 2c and receive status signals output from the elevator control panels 2a, 2b, and 2c.
  • the monitoring devices 3a, 3b, and 3c are provided inside the elevator machine room or hoistway.
  • the monitoring devices 3a, 3b, and 3c are connected to a modem control device 4 that controls a modem 5 (transmission device) described later, and transmit a communication request signal (destination signal) to the modem control device 4.
  • the communication request signal includes information indicating a monitoring center or an access point, which will be described later, as a transmission destination for transmitting the state information.
  • the modem control device 4 receives the communication request signal transmitted from the monitoring devices 3a, 3b, and 3c, and indicates one of the access points 6a and 6b outside the building 1
  • a communication command signal (control signal) is transmitted to the modem 5.
  • the modem 5 receives the communication command signal transmitted from the modem control device 4 and connects to the access point indicated by the communication command signal via the wireless network 9.
  • the modem 5 can be connected to only one access point at a time.
  • the access point 6a is connected to the monitoring center 7a via a dedicated wired line 8a
  • the access point 6b is connected to the monitoring center 7b via a dedicated wired line.
  • the elevator control panel 2a detects that a failure has occurred in the elevator, the elevator control panel 2a transmits a failure signal A as a status signal to the monitoring device 3a.
  • the monitoring device 3 a that has received the failure signal A transmits a communication request signal B to the modem control device 4.
  • the communication request signal B information specifying whether the monitoring device 3a communicates with the monitoring center 7a or 7b via the access point 6a or 6b, that is, communication between the monitoring device 3a and the monitoring center 7a or 7b. Contains information specifying the communication path to be used.
  • the communication request signal B includes information on expected waiting time and information on allowable waiting time, and is used for processing to be described later.
  • the expected waiting time is an expected time required for the modem 5 to complete the transmission of the status signal after connecting to the access point indicated by the communication request signal B. This expected waiting time is expected in the communication of these other monitoring devices 3b and 3c when the other monitoring devices 3b and 3c send a separate communication request signal B to the modem control device 4 in order to start communication. It becomes the standard of waiting time.
  • the allowable waiting time is that the monitoring device 3a waits for communication until the modem 5 connects to the access point indicated by the communication request signal B and starts communication, that is, until transmission of the status information of the modem 5 to the access point starts. It is an acceptable waiting time.
  • the modem control device 4 that has received the communication request signal B transmits a communication command signal C to the modem 5.
  • the communication command signal C includes communication path information indicating an access point to which the modem 5 should be connected and a connection command for instructing start of connection.
  • the modem 5 that has received the communication command signal C connects to the access point 6a or 6b.
  • the access point 6a is connected to the monitoring center 7a via a dedicated line 8a
  • the access point 6b is connected to the monitoring center 7b via a dedicated line 8b. Therefore, when the modem 5 is connected to the access point 6a or 6b, the monitoring device 3a can communicate with the monitoring center 7a or 7b, and communication is started. Thereafter, the monitoring device 3a transmits the failure signal A acquired from the elevator control panel 2a to the monitoring center 7a.
  • the monitoring device 3a can communicate with the monitoring center 7a, and the remote monitoring device 3a transmits to the monitoring center 7a.
  • a failure signal A is transmitted. Note that the monitoring device 3a does not need to transmit the failure signal A itself acquired from the elevator control panel 2a, and may be a signal indicating failure information included in the failure signal A.
  • the failure here is a concept including not only that the components of the elevator have failed but also that the failure is approaching due to deterioration over time.
  • the failure or the approaching failure is detected by a sensor provided in the hoistway or the machine room.
  • abnormalities such as the operation of an emergency stop device for emergency stop of the elevator, the operation of the elevator hoist brake, the occurrence of a power failure, the occurrence of a fire, etc. Information can also be sent.
  • the operation when two communication request signals B are transmitted in duplicate will be described with reference to FIG.
  • the case where the communication request signal B is transmitted redundantly from the monitoring devices 3a and 3b will be described as an example.
  • the communication request signal B1 designating the access point 6a is transmitted from the monitoring device 3a to the connection destination of the modem 5.
  • the modem control device 4 transmits a communication command signal C 1 to the modem 5.
  • the modem 5 is connected to the access point 6a, and communication is started between the monitoring center 7a and the monitoring device 3a connected to the access point 6a and the dedicated line 8a at the timing T1 in FIG.
  • the communication request signal B2 designating the access point 6b to the connection destination of the modem 5 is transmitted from the monitoring device 3b before the communication between the monitoring device 3a and the monitoring center 7a is completed. Since the modem 5 can be connected to only one access point at a time, the communication request signal B2 is held by the modem control device 4, and the communication command signal C2 is not transmitted to the modem 5.
  • a communication end signal D is sent from the monitoring device 3a to the modem control device 4. Is sent.
  • the modem control device 4 receives the communication end signal D and transmits a communication end command signal E to the modem 5.
  • the modem 5 receives the communication end command signal E and disconnects from the access point 6a.
  • a disconnection completion signal F is transmitted from the modem 5 to the modem control device 4.
  • the modem control device 4 receives the disconnection completion signal F from the modem 5 and outputs a communication command signal C2 to the modem 5 based on the held communication request signal B2.
  • the modem 5 receives the communication command signal C2, is connected to the access point 6b, and communication is started between the monitoring center 7b and the monitoring device 3b connected to the access point 6b through the dedicated line 8b.
  • the connection between the modem 5 and the access point 6b based on the communication request signal B2 of the monitoring device 3b is not executed until the communication between the monitoring device 3a and the monitoring center 7a is completed. Therefore, for the connection between the modem 5 and the access point 6b based on the communication request signal B2 of the monitoring device 3b, after the monitoring device 3b transmits the communication request signal B2 to the modem control device 4, the monitoring device 3b and the access point 6b A communication waiting time W occurs until communication is started.
  • the communication request signal B was transmitted redundantly from the monitoring devices 3a and 3b was described as an example, the case where the communication request signal B was transmitted redundantly from two monitoring devices with different combinations is also possible. It is the same.
  • the monitoring device 3 a designates the access point 6 a and transmits a communication request signal B 1.
  • the modem control device 4 transmits a communication command C 1 to the modem 5.
  • the modem 5 is connected to the access point 6a, and communication is started between the monitoring center 7a and the monitoring device 3a connected to the access point 6a and the dedicated line 8a at the timing indicated by T1 in FIG.
  • the communication request signal B2 designating the access point 6b is transmitted from the monitoring device 3b to the connection destination of the modem 5 before the communication between the monitoring device 3a and the monitoring center 7a is completed. Since the modem 5 can be connected to only one access point at the same time, the communication request signal B2 is held by the modem control device 4 as described above, and the communication command signal C2 is not transmitted to the modem 5. Further, a communication request signal for designating the access point 6a as the connection destination of the modem 5 from the monitoring device 3c during the communication waiting time W until the communication is started between the monitoring device 3b and the access point 6b. Assume that B3 is transmitted. Similar to the communication request signal B2, the communication request signal B3 is held by the modem control device 4 and is not transmitted to the modem 5.
  • the modem control device 4 ends communication between the monitoring device 3a and the monitoring center 7a at the timing indicated by T2 in FIG. Then, it is determined which of the communication request signals B2 and B3 is to be started first.
  • the modem 5 switches the connection destination from the access point 6a to the access point 6b.
  • the connection destination of the modem 5 is maintained as the access point 6a.
  • FIG. 5 is a diagram showing information included in the communication request signals B1 to B3 received by the modem control device 4.
  • the communication request signals B1 to B3 include information on the communication request source (monitoring devices 3a to 3c), the communication destination (access points 6a and 6b), the allowable waiting time (ATb and ATc), and the expected waiting time (PTa to PTc). included.
  • the allowable waiting time defined by the following formulas 1 and 2 Over values OTb and OTc are calculated. Further, when the communication between the monitoring device 3b and the monitoring center 7b is started first based on the communication request signal B2 (at the time of communication switching), the allowable waiting time overvalue OTb defined by the following equations 3 and 4; OTc is calculated.
  • the allowable waiting time overvalues OTb and OTc are values based on the allowable waiting time (ATb and ATc) of the monitoring devices 3b and 3c, and evaluation for determining which communication request of the monitoring devices 3b and 3c should be given priority. Used for.
  • Formula 2 OTc 0
  • OTb is an allowable waiting time overvalue of the monitoring device 3b
  • OTc is an allowable waiting time overvalue of the monitoring device 3c
  • max is a function for selecting the maximum value in the parentheses.
  • PTa to PTc are the expected waiting times of the monitoring devices 3a to 3c.
  • TTa and TTb are times elapsed from when the monitoring devices 3a and 3b start communication until the communication request signal B3 is received from the monitoring device 3c.
  • the time obtained by subtracting the elapsed times TTa and TTb from the start of communication from the expected waiting times PTa to PTc can be defined as the expected remaining waiting time.
  • the modem control device 4 obtains the sum of the allowable waiting time over values OTb and OTc as the evaluation value for each of “communication continuation” and “communication switching”, and compares the evaluation values. That is, the sum of the allowable waiting time over value OTb of Expression 1 and the allowable waiting time over value OTc of Expression 2 is obtained as the evaluation value when communication is continued, and the allowable waiting time over value of Expression 3 is used as the evaluation value when switching communication. The sum of OTb and the allowable waiting time overvalue OTc of Equation 4 is obtained. The modem control device 4 executes communication with a smaller evaluation value.
  • the evaluation value at the time of communication continuation is equal to or less than the evaluation value at the time of communication switching
  • communication between the monitoring device 3c and the monitoring center 7a is started after the communication between the monitoring device 3a and the monitoring center 7a is completed.
  • the connection destination of the modem 5 is switched from the access point 6a to the access point 6b, and communication between the monitoring device 3b and the monitoring center 7b is started.
  • the evaluation value at the time of communication continuation is larger than the evaluation value at the time of communication switching, the connection destination of the modem 5 is switched from the access point 6a to the access point 6b after the communication between the monitoring device 3a and the monitoring center 7a.
  • communication between the monitoring device 3b and the monitoring center 7b is started.
  • the connection destination of the modem 5 is switched from the access point 6b to the access point 6a, and communication between the monitoring device 3c and the monitoring center 7a is started.
  • the communication request signal B3 is started first, and the communication request signal
  • the formula for calculating the allowable waiting time overvalues OTb and OTc was different from the case where the communication by B2 was started first.
  • the access points specified by the communication requests B1 to B3 are the same, it is not necessary to perform “communication switching”, and “communication continues”. For this reason, for example, when the communication request signal B3 is started first and the communication request signal B2 is started first, the allowable waiting time overvalues OTb and OTc are both calculated using Equations 1 and 2. calculate.
  • the communication request signal B indicating the access point that transmits the state signal indicating the state of the elevator among a plurality of existing access points is transmitted.
  • a second monitoring device that transmits a communication request signal B indicating an access point that transmits a state signal indicating an elevator state among a plurality of existing access points based on the state of the second elevator;
  • the modem control device 4 that receives two communication request signals and transmits a communication command signal indicating one of the access points indicated by the two communication request signals, and the access point indicated by the communication command signal is the first monitoring device.
  • the status signal of the first elevator is A modem that transmits a second elevator status signal to the access point when the access point indicated by the communication command signal is the access point indicated by the communication request signal B transmitted by the first monitoring device. Therefore, efficient communication is possible.
  • a signal indicating the state of the first elevator is received from the first control device that controls the first elevator, and the state of the second elevator is determined from the second control device that controls the second elevator.
  • a first state signal indicating a state of the first elevator and a state of the second elevator based on the signal received from the first control device and the signal received from the second control device When the first status signal is transmitted first, the first transmission destination among the plurality of transmission destinations is determined. If the first status signal is transmitted to the second destination signal and then the second status signal is transmitted to the second destination among the plurality of destinations, the second status signal is transmitted first. Send second status signal to second destination among destinations , Then, to transmit a first state signal to the first destination of the transmission destination of multiple presence allows efficient communication.
  • the allowable waiting time until the modem 5 transmits the first elevator status signal to the access point is indicated in the communication request signal B, and the modem 5 transmits the second elevator status signal to the access point.
  • the allowable waiting time allowed until the communication request signal B is indicated in the communication request signal B, and the modem controller 4 transmits a communication command signal to the modem 5 based on the allowable waiting time indicated in the two communication request signals B. Communication according to the allowable waiting time for each communication request from the monitoring device is possible.
  • the modem control device 4 determines that the modem 5 is in communication with the evaluation value and the communication switching. Since the communication command signal is transmitted to the modem 5 based on the obtained evaluation value, the increase in the waiting time due to the change of the connection destination of the modem 5 is taken into consideration. Efficient communication becomes possible.
  • an expected waiting time required from the modem 5 connecting to the access point to the end of transmission of the first elevator status signal is indicated in the communication request signal B, and the modem 5 is connected to the access point 6a.
  • the expected waiting time required to finish the transmission of the second elevator status signal is indicated in the communication request signal B3.
  • the case where there are three elevators is described as an example for convenience, but the number is not limited to three and may be a plurality. Even when three or more communication request signals are duplicated, as in the case where two communication request signals are duplicated, the communication order is divided into cases, and an evaluation value is obtained for each case to determine which communication request. Decide whether to start first.
  • the number of monitoring centers is not limited to two, and may be a plurality of locations.
  • the case where the communication requests B1 to B3 are transmitted one by one from the monitoring devices 3a, 3b, and 3c has been described.
  • a plurality of failure signals may be transmitted from one monitoring device. In that case, each communication request signal is individually held in the modem control device 4, an evaluation value is calculated for each communication request signal, and the priority is determined.
  • Embodiment 2 the sum of the allowable waiting time over values OTb and OTc is obtained as the evaluation value.
  • the evaluation value is a simple sum of the allowable waiting time over values OTb and OTc
  • the evaluation value in a state where the small allowable waiting time over values are distributed over a number of communication request signals is large.
  • the waiting time over value is larger than the evaluation value in a state where the waiting time over value is concentrated on a small number of communication request signals.
  • the allowable waiting time may be significantly exceeded. For example, when the passenger is trapped in the elevator car, the elevator control panel sends a trap notification as a communication request signal. For example, the situation may be undesirable for a highly urgent communication request.
  • the evaluation value is obtained by using an evaluation function instead of a simple sum of the allowable waiting time over values.
  • a communication request signal that greatly exceeds the allowable waiting time can be evaluated as a larger evaluation value by using a function in which the first derivative becomes larger in accordance with the allowable waiting time over value.
  • a quadratic function shown in Expression 5 or an exponential function shown in Expression 6 can be considered.
  • the modem control device 4 determines the allowable waiting time overvalue OTb of the monitoring device 3b based on the expected waiting times PTa to PTc and the elapsed times TTa and TTb from the start of communication. Then, the permissible waiting time overvalue OTc of the monitoring device 3c is obtained, and the evaluation value at the time of communication continuation and the evaluation at the time of communication switching are used by using an evaluation function in which the first derivative increases as the overvalue OTb and the overvalue OTc increase. Find the value. As described above, communication with a highly urgent communication request can be performed with higher priority by obtaining the evaluation value by using the evaluation function instead of the simple sum of the allowable waiting time overvalues.
  • Embodiment 3 FIG. 1
  • the communication request signal for the access point 6a is generated more frequently than the communication request signal for the access point 6b
  • the communication request signal generated in the future is awaiting communication. Time is expected to increase. Therefore, when calculating the evaluation value, it is possible to select a communication path in consideration of a communication request signal generated in the future by considering the frequency of use of the communication path, that is, the appearance frequency of each communication destination in the past communication request signal. It becomes possible.
  • the evaluation value when the modem 5 is connected to the access point 6a is calculated using the following equation.
  • Formula 7 is a formula for calculating an evaluation value when the modem 5 is continuously connected to the access point 6a (when communication is continued).
  • Expression 8 is a formula for calculating an evaluation value when the connection target of the modem 5 is switched from the access point 6a to the access point 6b (when communication is switched).
  • Eval (when communication is continued) and Eval (when communication is switched) are evaluation values when the frequency of appearance of each communication destination in the past communication request signal is not considered.
  • Req (6a) is the number of times the access point 6a has been designated as the connection destination of the modem 5 in the communication request signal B received by the modem control device 4 in the past, and Req (6b) This is the number of times the access point 6b has been designated as the connection destination of the modem 5 in the communication request signal B received by the control device 4.
  • Req (6a) and Req (6b) are calculated based on the communication request signal B in the modem control device 4.
  • the modem control device 4 determines whether the modem 5 is connected to the access point 6a and the access point 6b based on the evaluation value during communication continuation and the communication switching time. Obtain an evaluation value. More specifically, the number of times designated as the connection destination of the modem 5 is obtained for each access point based on the communication request signal B received by the modem control device 4 in the past, and the correction based on the designated number of access points is evaluated. To do. In this correction, an access point with a specified number of times has a relatively large correction amount than an access point with a specified number of times. Therefore, it is possible to perform efficient communication with reduced increase in communication waiting time for a communication request that will occur in the future.
  • Req (6a) and Req (6b) are calculated by the modem control device 4 based on the communication request signal B.
  • the number of connections for access points connected in the past in the modem 5 is used.
  • the connection time can be stored and calculated by the modem control device 4 based on the information.
  • the modem 5 is connected to two access points.
  • the value obtained by summing the specified number of times for all access points is used as a denominator, and the value using the specified number of times for the access point to be connected as a numerator is expressed as Eval (when communication is continued), Eval (when communication is switched). ).

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
PCT/JP2015/075297 2015-09-07 2015-09-07 エレベータの信号送信装置、及びエレベータの信号送信方法 WO2017042858A1 (ja)

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CN201580082755.3A CN107949532B (zh) 2015-09-07 2015-09-07 电梯的信号发送装置及电梯的信号发送方法
PCT/JP2015/075297 WO2017042858A1 (ja) 2015-09-07 2015-09-07 エレベータの信号送信装置、及びエレベータの信号送信方法
JP2017538484A JP6319520B2 (ja) 2015-09-07 2015-09-07 エレベータの信号送信装置、及びエレベータの信号送信方法

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