JP2007217138A - Communication device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication device of an elevator capable of shortening the time before the occurrence of high degree of abnormality of the elevator is notified to a control center side when detecting a high degree of abnormality of the elevator while communication speed for a control center is reduced. <P>SOLUTION: A building side transmission and reception control part 3a determines whether an elevator control panel 4 detects shutting-in abnormality or high degree of abnormality of the elevator based on the monitoring data received from the elevator control panel 4 or not. The building side transmission and reception control part 3a transmits voice data and the monitoring data to a communication device 8 on the control center side simultaneously by communication of one system. The building side transmission and reception control part 3a monitors speed of communication for the communication device 8 on the control center side. The building side transmission and reception control part 3a stops multiplexing of control data and the voice data and transmits only the voice data to the communication device 8 on the control center side when speed of communication for the communication device 8 on the control center side is reduced and becomes less than a reference value. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is used in a remote monitoring system for an elevator, and is an elevator that transmits voice data, which is call data to a management center by a user in a car, and monitoring data of the elevator to a management panel of the management center. The present invention relates to a communication device.

  In the conventional elevator monitoring device, the voice data in the voice call from the user in the car to the management room is superposed on the monitoring data including the image data and the control data generated by the control panel, thereby managing the inside of the car. A voice call with a room and monitoring data transmission / reception are performed simultaneously. In addition, if the communication speed of the communication line between the management center and the monitoring device cannot be normally maintained due to a decrease in the communication speed of the communication line, the monitoring data transmission is interrupted and only the voice data is transmitted to the management center. Then, monitoring data is transmitted after the voice call ends (see, for example, Patent Document 1).

JP 2005-162435 A

  In the conventional elevator monitoring apparatus as described above, when the communication speed between the management center and the monitoring apparatus decreases, the voice data is transmitted with priority over the monitoring data, and the control panel causes a serious abnormality of the elevator (for example, due to natural disasters). Since transmission of monitoring data including information on serious abnormality detection is interrupted when a hoistway or car abnormality is detected), it takes time to notify the management center of the occurrence of a serious abnormality. was there.

  The present invention has been made to solve the above-described problems. When a serious abnormality of the elevator is detected when the communication speed to the management center is reduced, the serious abnormality of the elevator is generated on the management center side. It is an object of the present invention to provide an elevator communication device capable of shortening the time until notification.

  The elevator communication apparatus according to the present invention is managed by mixing voice data, which is data of voice of a call to a management center by a user in a car, and elevator monitoring data received from an operation control unit that operates the elevator. A communication control unit that transmits to the management panel of the center and monitors the communication speed with respect to the management panel. When the communication speed decreases and a severe abnormality of the elevator is detected by the operation control unit, the elevator control unit Monitoring data including information on severe anomalies is given priority over voice data and transmitted to the management panel.

  In the elevator communication apparatus according to the present invention, when the communication speed decreases and the elevator control detects a serious abnormality of the elevator, the communication control unit gives priority to the information on the serious abnormality of the elevator over the voice data to the management panel. Since the transmission is performed, it is possible to shorten the time until the management center is notified of the occurrence of a serious abnormality in the elevator.

The best mode for carrying out the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a configuration diagram showing an elevator remote monitoring system according to Embodiment 1 of the present invention.
In the figure, the building 1 is provided with an elevator 2 and a building-side communicator 3 as a communication control unit. The elevator 2 has an elevator control panel 4 as an operation control unit and a car 5 that is raised and lowered in the hoistway. The operation of the elevator 2 is controlled by the elevator control panel 4.

  The elevator control panel 4 is connected to the building-side communication device 3. Further, the elevator control panel 4 receives image data from a camera (not shown) that photographs the interior of the car 5. Further, the elevator control panel 4 monitors rope relations and brake relations (not shown), and performs fault diagnosis of the elevator 2 based on the monitoring situation such as rope relations and brake relations and the operation situation of the elevator 2. Do. Furthermore, the elevator control panel 4 performs failure diagnosis of the elevator 2 for abnormalities in operation of the elevator 2 including confinement (canning) abnormality in which a user is confined in the car 5 and severe abnormality of the elevator 2. To detect.

  Here, the severe abnormality detected by the elevator control panel 4 is caused by, for example, damage in the hoistway due to a natural disaster, and when the car 5 cannot be raised and lowered and cannot be opened, due to abnormality in the rope and brake. The car 5 may not be able to maintain the current standby state (falls) or the like. Further, the elevator control panel 4 generates monitoring data based on the detection result of the operation abnormality of the elevator 2, the image data received from the camera, and the operation status of the elevator 2, and sends the monitoring data to the building-side communication device 3.

  In the car 5, an interphone 6 is provided for a user in the car 5 to make a call to the outside of the car 5. The intercom 6 is connected to the building-side communication device 3. The intercom 6 includes a microphone and a speaker (both not shown). The microphone of the intercom 6 generates a voice signal (analog signal) by converting the call voice of the user in the car into an electric signal. The microphone of the intercom 6 sends the generated audio signal to the building side communication device 3. The speaker of the intercom 6 converts the voice signal from the building side communication device 3 into a call voice and outputs it to the car 5.

  In the management center 7 located away from the building 1, a center side communication device 8, a display device 9, a headset (handset) 10 and a call end button 11 as a management panel are provided. The center side communication device 8 is connected to the display device 9, the headset 10, and the call end button 11. The display 9 displays the display data from the center side communication device 8. The headset 10 is used for a call between an administrator in the management center 7 and the outside of the management center 7. Moreover, the headset 10 has a microphone and a speaker (both not shown).

  The microphone of the headset 10 generates an audio signal (analog signal) by converting the call voice of the administrator into an electrical signal. The audio signal generated by the microphone of the headset 10 is sent to the center side communication device 8. The speaker of the headset 10 outputs the voice signal from the center side communication device 8 to the administrator as a call voice. The call end button 11 is operated by the administrator when the call between the management center 7 and the outside of the management center 7 is ended. Further, when the call end button 11 is operated, a call end signal is sent to the center side communication device 8.

  The building side communication device 3 and the center side communication device 8 are connected to a communication line network 12. The communication line network 12 is, for example, a general telephone line network, a PHS line network, a mobile phone line network, or the like. The building side communication device 3 and the center side communication device 8 can communicate with each other via the communication network 12. Thereby, the operation of the elevator 2 is monitored by an administrator in the management center 7 via the building side communication device 3, the communication line network 12 and the center side communication device 8.

  FIG. 2 is a block diagram specifically showing the building side communication device 3 and the center side communication device 8 of FIG. In the figure, a building-side communication device 3 includes a building-side transmission / reception control unit (transmission / reception control circuit) 3a, a building-side voice conversion unit (voice digitizing circuit) 3b, and a building-side communication unit 8 for performing communication with the center-side communication device 8. An output unit (communication line I / F) 3c is provided. The building side transmission / reception control unit 3 a controls the overall operation of the building side communication device 3. The building-side transmission / reception control unit 3 a determines whether the elevator control panel 4 has detected a confinement abnormality or a serious abnormality of the elevator 2 based on the monitoring data received from the elevator control panel 4.

  Furthermore, the building side transmission / reception control unit 3a instructs the building side input / output unit 3c to establish communication with the center side communication device 8. Furthermore, the building-side transmission / reception control unit 3a receives voice data from the center-side communication device 8 via the building-side input / output unit 3c when communication with the center-side communication device 8 is established by the building-side input / output unit 3c. Receive. Further, the building side transmission / reception control unit 3a multiplexes (mixes) the voice data and the monitoring data by, for example, time division multiplexing, and transmits the multiplexed data to the building side input / output unit 3c. That is, the building side transmission / reception control unit 3a transmits the voice data and the monitoring data simultaneously to the center side communication device 8 through one system of communication.

  Further, the building side transmission / reception control unit 3a monitors the communication speed of communication with the center side communication device 8. Furthermore, a reference value as a lower limit value of a communication speed at which voice data and monitoring data can be normally transmitted is registered in the building-side transmission / reception control unit 3a. Further, the building side transmission / reception control unit 3a stops multiplexing of the management data and the voice data when the communication speed of the communication to the center side communication device 8 is lower than the reference value, and transmits only the voice data to the center side communication. To the device 8. Here, for example, when the communication speed of communication with the center side communication device 8 at normal time is 16 kbps on average, and the communication speed of voice data necessary to prevent the voice from being interrupted is 8 kbps, the building side transmission / reception control unit 3a has 10 kbps is registered as a reference value.

  The building-side transmission / reception control unit 3a includes information on detection of severe abnormality when the communication speed of communication with the center-side communication device 8 is less than a reference value and a serious abnormality of the elevator 2 is detected by the elevator control panel 4. Management data is multiplexed with priority over voice data. That is, the building-side transmission / reception control unit 3a lowers the communication speed to be less than the reference value, and when the elevator control panel 4 detects a serious abnormality of the elevator 2, the monitoring data is given priority over the voice data and the center-side communication is performed. To the device 8. If a severe abnormality is detected, the building-side transmission / reception control unit 3a gives the highest priority to the transmission of severe abnormality detection information to the center-side communication device 8. Therefore, even if the call voice based on the voice data is interrupted, Good.

  Further, when the building-side transmission / reception control unit 3a receives the voice call stop instruction information from the center-side communication device 8, the building-side transmission / reception control unit 3a stops the transmission of the voice data to the center-side communication device 8. When the operation abnormality of the elevator 2 is resolved, the building-side transmission / reception control unit 3a stops transmitting the monitoring data.

  The building-side audio conversion unit 3b and the intercom 6 transmit and receive audio signals (analog signals). Further, the building side voice conversion unit 3b and the building side transmission / reception control unit 3a perform transmission / reception of voice data (digital data). Further, the building-side audio conversion unit 3b performs A / D (Analog / Digital) conversion of the audio signal received from the interphone 6, and converts the audio signal into audio data. Moreover, the building side audio | voice conversion part 3b performs D / A (Digital / Analog) conversion of the audio | voice data received from the building side transmission / reception control part 3a, and converts audio | voice data into an audio | voice signal. The building-side input / output unit 3c transmits connection request information to the center-side communication device 8 in response to a connection request instruction from the building-side transmission / reception control unit 3a, and establishes communication with the center-side communication device 8.

  The center side communication device 8 includes a center side transmission / reception control unit 8a, a center side voice conversion unit 8b, and a center side input / output unit 8c. The center side transmission / reception control unit 8a controls the operation of the center side communication device 8 as a whole. Further, the center side transmission / reception control unit 8 a displays the operation status of the elevator 2 and the image in the car 5 by sending display data to the display 9 based on the monitoring data received from the building side communication device 3. It is displayed on the device 9. Furthermore, if the monitoring data includes information on a serious abnormality, the center-side transmission / reception control unit 8a causes the display 9 to display that a serious abnormality has occurred. Furthermore, the center side transmission / reception control unit 8a sends the audio data received from the building side communication device 3 to the center side audio conversion unit 8b.

  The center side transmission / reception control unit 8a receives audio data from the center side audio conversion unit 8b. Further, the center side transmission / reception control unit 8 a transmits the voice data received from the center side voice conversion unit 8 b to the building side communication device 3 via the center side input / output unit 8 c and the communication line network 12. Furthermore, when the administrator receives the call end signal from the call end button 11 by the administrator, the center side transmission / reception control unit 8a stops the transmission of the voice data and transmits the information on the voice call stop instruction to the building side communication device 3. To do.

  The center side audio conversion unit 8b performs A / D conversion of the audio signal received from the headset 10 and converts the audio signal into audio data. Further, the center side audio conversion unit 8b performs D / A conversion of the audio data received from the center side transmission / reception control unit 8a, and converts the audio data into an audio signal. The center side input / output unit 8c receives the connection request information from the building side input / output unit 3c and establishes communication with the building side communication device 3.

  Here, the building side communicator 3, the elevator control panel 4, and the center side communicator 8 are a computer (not shown) having an arithmetic processing unit (CPU), a storage unit (ROM, RAM, etc.) and a signal input / output unit. ) Respectively. The storage unit of the computer of the building-side communication device 3 stores programs for realizing the functions of the building-side transmission / reception control unit 3a, the building-side audio conversion unit 3b, and the building-side input / output unit 3c. The computer of the elevator control panel 4 stores a program for realizing the operation of the elevator control panel 4. The storage unit of the computer of the center side communication device 8 stores programs for realizing the functions of the center side transmission / reception control unit 8a, the center side voice conversion unit 8b, and the center side input / output unit 8c.

  Next, the operation will be described. FIG. 3 is a flowchart showing the operation when the building 2 communicator 3 of FIG. In the figure, first, the building-side communication device 3 establishes communication with the center-side communication device 8 when detecting that the confinement abnormality of the elevator 2 has occurred (step S1). And the building side communication apparatus 3 confirms whether the communication speed of communication with respect to the center side communication apparatus 8 is less than a reference value (step S2). When the communication speed is equal to or higher than the reference value, the building side communication device 3 transmits the voice data and the monitoring data to the center side communication device 8 (step S3), and receives the voice data from the center side communication device 8 together with this. .

  And the building side communication apparatus 3 confirms whether the voice call between the inside of the cage | basket | car 5 and the management center 7 was complete | finished (step S4). If the voice call has ended, the building side communication device 3 confirms whether the transmission of the monitoring data has ended (step S5), and if the transmission of the monitoring data has ended, the building side communication device 3 The communication is released (step S6), and the operation when the confinement abnormality of the elevator 2 occurs is finished.

  If the voice call between the car 5 and the management center 7 is not completed during transmission of the voice data and the monitoring data, the building side communication device 3 has a communication speed of communication with the center side communication device 8. The voice data and the monitoring data are continuously transmitted to the center side communication device 8 until it becomes less than the reference value or the voice call is finished.

  On the other hand, when the communication speed of communication with respect to the center side communication device 8 is less than the reference value, the building side communication device 3 transmits only voice data to the center side communication device 8 (step S7), and the center side communication device. 8 receives audio data. And the building side communication apparatus 3 confirms whether the severe abnormality of the elevator 2 was detected during transmission of only audio | voice data (step S8). When the severe abnormality is not detected, the building side communication device 3 confirms whether or not the voice call has ended (step S9).

  If a severe abnormality of the elevator 2 is detected during transmission of only the voice data, the building side communication device 3 gives priority to the monitoring data including information on the detection of the severe abnormality over the voice data, and the center side communication device 8 (Step S10). Then, the building-side communication device 3 confirms whether or not the transmission of information on the detection of severe abnormality has been completed (step S11), and waits until the transmission of information on the detection of severe abnormality has been completed. When the transmission of the information on the occurrence of the severe abnormality is completed, the building side communication device 3 transmits only the voice data (step S12), and confirms whether or not the voice call is ended (step S9).

  When the voice call has not ended, the building-side communication device 3 continues to transmit the voice data until the communication speed becomes less than the reference value or the voice call ends. When the voice call is finished, the building side communication device 3 transmits monitoring data to the center side communication device 8 (step S13). And the building side communication apparatus 3 confirms whether transmission of monitoring data was complete | finished (step S14), and waits until transmission of monitoring data is complete | finished. When the transmission of the monitoring data is finished, the building side communication device 3 releases the communication with the center side communication device 8 (step S6), and the operation when the confinement abnormality of the elevator 2 occurs is finished.

  The elevator communication apparatus as described above monitors the communication speed of communication with the center side communication device and the occurrence of the elevator abnormalities, and the elevator abnormalities are detected even when only a voice call is performed. Since the management center is notified of the occurrence, the time required to notify the management center of the occurrence of a severe abnormality in the elevator can be shortened, and maintenance is performed on the elevator in which a serious abnormality has occurred according to instructions from the administrator in the management center. It is possible to dispatch the staff very quickly.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described. FIG. 4 is a block diagram showing an elevator remote monitoring system according to the second embodiment. In the figure, the building-side communication device 3 further includes an alarm sound generator (alarm sound generator) 3d. The warning sound generating unit 3d generates warning sound data (digital data) in response to a generation command from the building side transmission / reception control unit 3a. The alarm sound data generated by the alarm sound generator 3d is sent to the building-side audio converter 3b. The building-side voice conversion unit 3b superimposes the alarm sound data on the voice data based on the call voice in the car 5.

  Here, the building side transmission / reception control unit 3a of the first embodiment has a communication speed with respect to the center side communication device 8 that is lower than the reference value, and when the elevator control panel 4 detects a severe abnormality of the elevator 2, The information on the detection of severe abnormality is transmitted to the center side communication device 8 with priority over the voice data. However, the building side transmission / reception control unit 3a of the second embodiment sends an alarm sound generation command to the alarm sound generation unit 3d. send. And the building side transmission / reception control part 3a transmits the audio | voice data with which the alarm sound data was superimposed to the center side communication apparatus 8 (it does not transmit monitoring data).

  The alarm sound data received by the center side communicator 8 is converted into an alarm sound by the center side voice conversion unit 8b and output to the outside from the speaker of the headset 10. That is, the building-side communicator 3 outputs an alarm sound from the speaker of the headset 10 to notify the manager that the elevator control panel 4 has detected a severe abnormality of the elevator 2. The center side communication device 8 is connected with an alarm sound stop button 13 operated by an administrator. By operating the alarm sound stop button 13, an alarm sound stop signal is sent to the center side communication device 8. The center side transmission / reception control unit 8 a transmits an alarm sound stop instruction to the building side communication device 3 in response to the alarm sound stop signal received from the alarm sound stop button 13. Other configurations are the same as those in the first embodiment.

  Next, the operation will be described. The building side communicator 3 according to the second embodiment operates in the case where a severe abnormality of the elevator 2 is detected when the communication speed is less than the reference value (steps S10 to S12 shown in FIG. 3). Therefore, only the difference from the first embodiment will be described here.

  FIG. 5 is a flowchart showing the operation when the building 2 communicator 3 of FIG. In the figure, when the building side communicator 3 confirms that a severe abnormality of the elevator 2 has been detected during transmission of only voice data, the building side communicator 3 transmits only the voice data on which the alarm sound data is superimposed to the center side communicator 8. (Step S21). And the building side communication apparatus 3 confirms whether the alarm stop instruction | indication was received from the center side communication apparatus 8 (step S22), and waits until an alarm stop instruction | indication is received from the center side communication apparatus 8. FIG. When the alarm stop instruction is received from the center side communicator 8, the building side communicator 3 cancels the superimposition of the alarm sound data on the audio data (step S23). Other operations are the same as those in the first embodiment.

  In the elevator communication apparatus as described above, when the communication speed is lower than the reference value and a serious abnormality of the elevator is detected, the voice data on which the alarm sound data is superimposed is transmitted to the center side communication device. The manager in the management center can be informed that a serious abnormality of the elevator has been detected while continuing the voice call between the car and the management center.

  In the second embodiment, the alarm sound is generated from the speaker of the headset. However, the alarm sound is not limited to the speaker of the headset, and other alarm sound may be used as long as the alarm sound can be generated.

  Further, the voice data and the alarm sound data may be separated by the management board, the voice data may be output to a speaker for calling, and the alarm sound data may be output to an alarm device or the like.

  Further, in the first and second embodiments, the building side transmission / reception control unit 3a monitors the communication speed, but the management panel of the management center may monitor the communication speed. In this case, when the management board detects a decrease in the communication speed, the management board transmits an instruction to prioritize the voice call to the communication control unit. When the communication control unit receives an instruction to prioritize the voice call from the management panel, the communication control unit prioritizes the voice data over the monitoring data and transmits the voice data to the management panel.

It is a block diagram which shows the remote monitoring system of the elevator by Embodiment 1 of this invention. It is a block diagram which shows concretely the building side communication apparatus and center side communication apparatus of FIG. It is a flowchart which shows the operation | movement at the time of the confinement abnormality of the elevator by the building side communication apparatus of FIG. It is a block diagram which shows the remote monitoring system of the elevator by Embodiment 2 of this invention. It is a flowchart which shows the operation | movement at the time of the confinement abnormality of the elevator by the building side communication apparatus 3 of FIG.

Explanation of symbols

  2 elevator, 3 building side communication device (communication control unit), 4 elevator control panel (operation control unit), 7 management center, 8 center side communication device (management panel).

Claims (4)

Voice data that is voice data of calls to the management center by users in the car and elevator monitoring data received from the operation control unit that operates the elevator are mixed and transmitted to the management panel of the management center. A communication control unit that monitors the communication speed for the management panel is provided.
When the communication speed decreases and the operation control unit detects a serious abnormality of the elevator, the communication control unit prioritizes monitoring data including information on the serious abnormality of the elevator over voice data, and manages the management. An elevator communication device characterized by transmitting to a panel. Voice data that is voice call data to the management center by users in the car and elevator monitoring data received from the operation control unit that operates the elevator are mixed and transmitted to the management panel of the management center. A communication control unit that monitors the communication speed for the management panel is provided.
The communication control unit monitors voice data on which warning sound data for generating a warning sound is superimposed on the management center side when the communication speed decreases and a severe abnormality of the elevator is detected by the operation control unit. An elevator communication device characterized in that the data is transmitted to the management panel in preference to data.   The elevator communication apparatus according to claim 2, wherein the communication control unit stops transmission of audio data in response to a stop instruction from the management panel and transmits monitoring data to the management panel.   The elevator communication device according to any one of claims 1 to 3, wherein when the communication speed decreases, the communication control unit prioritizes voice data over monitoring data and transmits the voice data to the management panel. .

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