JP6601740B2 - Elevator remote monitoring system - Google Patents

Description

  The present invention relates to a remote monitoring system that remotely monitors lifting devices such as elevators and escalators.

  Conventionally, a remote monitoring system for remotely monitoring the operation of the lifting device has been provided (see Patent Document 1). This remote monitoring system includes a lifting device and a monitoring terminal that is communicably connected to the lifting device. The lifting device includes a switch for calling, and a calling unit that can call the operator of the monitoring terminal based on an operation on the switch. In this remote monitoring system, the user of the lifting device can communicate the status of the lifting device by talking with the operator of the monitoring terminal via the calling means by operating a switch for calling.

JP 2016-44054 A

  By the way, some users of the lifting device operate the call switch mischievously even though the call with the operator is not required. Even in such a case, the operator of the monitoring terminal must handle the call.

  Accordingly, an object of the present invention is to provide a remote monitoring system that can appropriately cope with a call operation that requires a call correspondence with an operator while preventing a call operation due to a mischief or an erroneous operation. .

The remote monitoring system according to the present invention includes a lifting device having a first calling unit that can communicate with a switch operation, and a second call that is communicably connected to the lifting device and can communicate with the first calling unit. And a communication control unit that controls communication between the first call unit and the second call unit, and the communication control unit reduces the urgency of the switch operation of the first call unit. If it is determined that there is urgency, the first call unit and the second call unit can be communicated with one switch operation, while if there is no urgency, the previous switch operation is started. There line communication control processing that allows call and to said first call unit the second call unit in one or more switch operation after the lapse of the first predetermined time, the communication control unit, not urgent And a second time starting from the lapse of the first predetermined time. When there is no new switch operation within a fixed time, the lifting device is caused to output information notifying the end of the communication control process, and when there is a new switch operation after the second predetermined time has elapsed, The communication control process is started with this switch operation .

According to this configuration, the operator responds to a call for mischief or an erroneous operation by causing the switch operation to be performed a plurality of times (two or more times) in order to enable communication between the first call unit and the second call unit. While preventing this, it is possible to talk with the operator promptly (that is, with a single switch operation) in an emergency.
Moreover, according to such a configuration, even if two or more switch operations (ie, two or more switch operations within the first predetermined time) are performed by repeatedly hitting the switch, Since it is not possible to make a call with the two callers, it is possible to prevent the operator from responding to mischief or the like caused by repeated hitting of the switch.
Further, according to this configuration, when the switch operation is performed after the first predetermined time and the second predetermined time following the first switch operation, the communication control unit performs the switch operation first. The communication control process is performed by determining that the switch is operated.

  In the remote monitoring system, the communication control unit may determine the urgency of the switch operation based on information on the state of the lifting device from the lifting device.

  According to such a configuration, since the communication control unit determines the urgency based on the information on the lifting device, the determination of the urgency in the communication control unit becomes more accurate.

  The remote monitoring system includes a remote monitoring unit that is communicably connected to the lifting device and that monitors the status of the lifting device. The lifting device controls its own operation and relates to its own state. A control microcomputer that outputs information, the monitoring terminal or the remote monitoring unit includes the communication control unit, and the communication control unit determines the urgency of the switch operation based on information from the control microcomputer. You may judge.

  According to such a configuration, the communication control unit receives information on the state of the lifting device from the control microcomputer and determines the urgency based on this information. Therefore, the urgency determination in the communication control unit is more accurate. become.

In the remote monitoring system, the communication control unit may cause the lifting device to output information prompting the next switch operation, and the first predetermined time may be a time for outputting the information.

  According to this configuration, the switch operation is invalidated while the information prompting the next switch operation is output, and the next switch operation is performed after a sufficient time (first predetermined time) has elapsed since the previous switch operation. Otherwise, since the first call unit and the second call unit are not capable of making a call, it is possible to more reliably prevent the operator from responding to a mischief or the like.

  As described above, according to the present invention, it is possible to provide a remote monitoring system capable of appropriately responding to a call operation requiring a call correspondence with an operator while preventing a call operation due to a mischief or an erroneous operation. it can.

FIG. 1 is a block diagram of a remote monitoring system according to an embodiment of the present invention. FIG. 2 is a flowchart showing processing of the remote monitoring system according to the embodiment. FIG. 3 is a flowchart showing processing of the remote monitoring system according to the embodiment. FIG. 4 is a block diagram of a remote monitoring system according to a modification of the present invention. FIG. 5 is a block diagram of a remote monitoring system according to a modification of the present invention.

  Hereinafter, a remote monitoring system for an elevator apparatus according to the present invention will be described. The remote monitoring system is a system that remotely monitors the operating state of the lifting device. In addition, although there exist an elevator, an escalator, etc. in a raising / lowering apparatus, below, the remote monitoring system of an elevator is demonstrated.

  As shown in FIG. 1, the remote monitoring system includes an elevator 2 having a first call unit 213 capable of making a call in accordance with the operation of the switch 212, a communicable connection to the elevator 2, and the first call unit 213 The monitoring terminal 4 which has the 2nd call part 42 which can talk, and the communication control part 30 which controls communication with the 1st call part 213 and the 2nd call part 42 are provided. The remote monitoring system 1 of this embodiment is connected to the elevator 2 so as to be communicable, and includes a remote monitoring unit 3 that monitors the status of the elevator 2, and the remote monitoring unit 3 includes the communication control unit 30 described above.

  The elevator 2 includes an operation unit 20 having a car, a car door, a hoistway, and the like, and an information output unit 21 that outputs information related to the elevator 2. In the car, there are provided an open / close button that can be used to open and close the car door, a floor button that can designate the stop floor of the car, and a speaker that plays various voice guidance in the car.

  The information output unit 21 of the present embodiment includes a control microcomputer 210 that outputs information related to the state of the elevator 2, an interphone (two-way communication device) 211 having a switch 212 and a first call unit 213, and the like.

  For example, the control microcomputer 210 controls the operation of the elevator 2 and outputs information related to the state of the elevator 2 (car door opening / closing information, car position information, and the like). Specifically, the control microcomputer 210 outputs a code assigned to each elevator 2 state (hereinafter referred to as an event code).

  The interphone 211 is installed, for example, in a car of the elevator 2 and enables a voice call with a user in the car to the outside. In addition, the interphone 211 starts a call in the first call unit 213 by the user operating the switch 212. That is, the first call unit 213 starts communication with the second call unit 42 by operating the switch 212. The interphone 211 of this embodiment outputs this operation information to the remote monitoring unit 3 when the switch 212 is operated. The interphone 211 according to the present embodiment outputs the user's voice information to the remote monitoring unit 3 when the first call unit 213 calls. The operation of the switch 212 of this embodiment is performed, for example, by pressing a call button of the intercom 211.

  The remote monitoring unit 3 is connected to the information output unit 21 (the control microcomputer 210, the interphone 211, etc.) by wire, for example, P2P (Peer to Peer). The remote monitoring unit 3 is connected to the monitoring terminal 4 via the first communication system R1. The communication system R1 is a communication system including a telephone line, for example.

  The remote monitoring unit 3 includes a CPU (Central Processing Unit) and a storage unit that stores in advance various programs executed by the CPU, data necessary for the execution, and the like. In the remote monitoring unit 3, the communication control unit 30 is functionally formed by the CPU executing a predetermined program.

The communication control unit 30 includes an urgency judging unit 31 for judging the urgency of the operation of the switch 212, a counter 32 for measuring the number of operations C _SW switch 212, and a timer 33 for measuring time. The communication control unit 30 makes various determinations using the urgency determination unit 31, the counter 32, and the timer 33. Further, the communication control unit 30 performs a communication control process for controlling communication between the first call unit 213 and the second call unit 42 based on the urgency of the operation of the switch 212 determined by the urgency determination unit 31. The configuration for performing this communication control process will be specifically described below.

  The communication control unit 30 according to the present embodiment monitors the operation of the switch 212, and acquires information from the control microcomputer 210 (information related to the state of the elevator 2) upon receiving this operation. The communication control unit 30 determines the urgency of the operation of the switch 212 based on the acquired information. Specifically, the communication control unit 30 compares the event code output from the control microcomputer 210 with previously stored setting data, and determines that the operation of the switch 212 is urgent if they match, If this does not match, it is determined that this operation is not urgent.

  Note that the setting data is stored in advance in the storage unit, and is, for example, a code that matches the event code corresponding to the state of the emergency elevator 2. Such a state is, for example, confinement of a user in the car due to the inability to open or close the car door or the landing door, ignition from a motor or the like, brake failure, earthquake, or the like.

  When the communication control unit 30 determines that the operation of the switch 212 is urgent, the communication control unit 30 performs a process (communication control process) that enables the first call unit 213 and the second call unit 42 to make a call. That is, when the communication control unit 30 determines that the operation of the switch 212 is urgent, the communication control unit 30 enables the first call unit 213 and the second call unit 42 to make a call with a single switch operation.

  If the communication control unit 30 determines that the operation of the switch 212 is not urgent, the communication control unit 30 starts voice guidance prompting “operation of the call button of the intercom 211 within the second predetermined time” in the car. As described above, since the speaker that provides various voice guidance is provided in the car, the voice guidance flows from the speaker, for example, at the start of the voice guidance. The period during which the voice guidance flows is a first predetermined time when the operation of the previous switch 212 is started. This voice guidance is, for example, a voice guidance stating that “in order to start a call, it is necessary to operate the switch 212 again (press the call button of the intercom 211 once more) within the second predetermined time”. It is.

  Note that the communication control unit 30 of the present embodiment provides a voice guidance prompting the user to operate the switch 212 for the first time (“operation of the call button of the intercom 211 within the second predetermined time”) after the first operation of the switch 212. Switch operation of the switch 212 is not accepted. That is, the communication control unit 30 of the present embodiment invalidates the next switch operation within the first predetermined time starting from the previous switch operation.

  When the switch 212 is not operated within the second predetermined time after the end of the voice guidance (after the first predetermined time has elapsed), the communication control unit 30 “processes because the call button of the intercom 211 has not been operated. A voice guidance to the effect of “ending” is performed, and the process ends.

The communication control unit 30 adds 1 to the count of the counter 32 when the switch 212 is operated within the second predetermined time after the end of the voice guidance (after the first predetermined time has elapsed). The communication control unit 30, if the number of operations C _SW switch 212 is a count number of the counter 32 is set the number of times N or more, Problem call start the monitoring terminal 4, the first call unit 213 second call section 42 Start communication with. If the operation count C _SW of the switch 212, which is the count number of the counter 32, is less than the set count N, the communication control unit 30 determines whether or not there is urgency until the operation count C _SW becomes equal to or greater than the set count N. After a voice guidance is played, a series of processes of waiting for the operation of the switch 212 is repeated, and when the number of operations C _SW becomes _equal to or greater than the set number N, communication between the first call unit 213 and the second call unit 42 is performed. To start. That is, if the communication control unit 30 determines that the operation of the switch 212 is not urgent, the communication control unit 30 enables the first call unit 213 and the second call unit 42 to perform a call with N switch operations. N here is a natural number of 1 or more. When it is determined that the operation of the switch 212 is urgent during the repetition, a process (communication control process) for enabling a call between the first call unit 213 and the second call unit 42 is performed.

  The monitoring terminal 4 includes a switch 41 that enables the second call unit 42 to make a call, an interphone 40 including the second call unit 42, and a display unit (not shown). For example, the monitoring terminal 4 of the present embodiment monitors a large number of elevators installed in a plurality of areas, and is installed in a monitoring center or the like that is a building apart from the target elevator. An operator (monitorer) is resident in the monitoring center of the present embodiment, and the operator can operate the monitoring terminal 4.

  Moreover, the monitoring terminal 4 always receives information on the state of the elevator 2 from the control microcomputer 210 via the remote monitoring unit 3. The monitoring terminal 4 receives and displays this information. The monitor can monitor the operation state of the elevator 2 by confirming this display.

  When the communication control unit 30 enables communication with the first call unit 213, the second call unit 42 can perform a voice call with the first call unit. As a result, the operator can make a voice call with a user in the car.

  Hereinafter, the flow of processing in the remote monitoring system 1 will be described with reference to the flowcharts of FIGS. 2 and 3.

  For example, the communication control unit 30 constantly monitors the operation of the switch 212 of the interphone 211, and repeats this monitoring when no input of the operation of the switch 212 is received (No in S01). When the communication control unit 30 receives an input of the operation of the switch 212 from the intercom 211 (Yes in S01), the communication control unit 30 resets the counter 32 (S02, sets the count number of the counter 32 to 0) and the elevator 2 from the control microcomputer 210. The information regarding the state of is acquired (S03). The communication control unit 30 determines the urgency of the operation of the switch 212 based on the acquired information (S04).

  When determining that this operation is urgent (Yes in S04), the communication control unit 30 enables communication between the first call unit 213 and the second call unit 42 (S14 in FIG. 3).

  If the communication control unit 30 determines that this operation is not urgent (No in S04), it starts voice guidance for prompting “operation of the call button of the intercom 211 within the second predetermined time” in the car (S05). ). When this voice guidance is completed (Yes in S06 after elapse of the first predetermined time), the communication control unit 30 resets the timer 33 (S07), then starts the timer 33 (S08), and the second It waits for the operation of the switch 212 until a predetermined time elapses. If this voice guidance is not finished (No in S06 before the first predetermined time elapses), the communication control unit 30 waits for execution of the next process until the voice guidance is finished.

  After resetting and starting the timer 33 (S07, S08), the communication control unit 30 receives the operation of the switch 212, and when the second predetermined time elapses (Yes in S09), the processing is finished. Voice guidance ("voice guidance to the effect that the process is terminated because there was no operation on the call button of the intercom 211") is started (S10), and the process is terminated.

  By the time the second predetermined time has elapsed (No in S09), if the switch 212 has not been operated (before the first predetermined time has elapsed, No in S06), until the second predetermined time has elapsed, The communication control unit 30 waits for the operation of the switch 212.

  If the operation of the switch 212 is received (Yes in S11) before the second predetermined time has elapsed (No in S09), the communication control unit 30 adds 1 to the counter 32 (S12).

If the operation less than the number _{C SW} is set number N of the switch 212 (at S13 No), a series of processes are repeated from S03 in FIG.

If the operation count C _SW of the switch 212 is equal to or greater than the set count N (Yes in S13), the communication control unit 30 starts communication between the first call unit 213 and the second call unit 42 (S14).

  As described above, the communication control unit 30 determines the urgency of the operation of the switch 212 of the first call unit 213, and when there is an urgency, the first call unit 213 and the second call can be performed with a single switch operation. While it is possible to make a call with the unit 42, when there is no urgency, the first call unit and the second call unit 42 are made callable with two or more switch operations. In this way, in cases other than emergency, the switch operation is performed a plurality of times (twice or more) in order to enable the first call unit 213 and the second call unit 42 to be able to talk, so that an operator against mischief or misoperation etc. Can be communicated with the operator promptly in an emergency (ie, with a single switch operation).

  Further, the communication control unit 30 receives information related to the state of the elevator 2 from the control microcomputer 210 and determines urgency based on this information. Therefore, the determination of urgency in the communication control unit 30 becomes more accurate.

  Since the communication control unit 30 invalidates the operation of the next switch 212 within the first predetermined time starting from the operation of the previous switch 212, two or more switch operations (for example, by repeatedly pressing the switch 212) That is, even if the switch operation is performed twice or more within the first predetermined time), the first call unit 213 and the second call unit 42 are not allowed to make a call. It is possible to prevent the operator's call response.

  In the remote monitoring system 1, the communication control unit 30 causes the elevator 2 to output information (voice guidance) that prompts the elevator 2 to operate the next switch 212. The first predetermined time is a time for outputting this information (voice guidance). Therefore, the operation of the switch 212 is invalidated while the information for prompting the next switch operation is being output (while the voice guidance is flowing), and a sufficient time (first predetermined time) has elapsed since the operation of the previous switch 212. If the operation of the next switch 212 is not performed later, the first call unit 213 and the second call unit 42 cannot be used.

  When a normal user operates the switch 212, it waits for the end of the voice guidance and operates the next switch 212 because of the necessity of conversation with the operator. On the other hand, a person who performs mischief or the like operates the switch 212 continuously (for example, the interphone 211) to leave before the voice guidance ends to leave the place before communication with the operator becomes possible. If the switch 212 is operated without waiting for the end of the voice guidance after the switch 212 is operated or the switch 212 is operated, the second and subsequent operations of the switch 212 become invalid. Thereby, in the remote monitoring system 1, it is possible to more reliably prevent the operator's call response to mischief and the like.

  The remote monitoring system of the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention. For example, the configuration of another embodiment can be added to the configuration of a certain embodiment, and a part of the configuration of a certain embodiment can be replaced with the configuration of another embodiment. Furthermore, a part of the configuration of an embodiment can be deleted.

  For example, in the remote monitoring system 1, the communication control unit 30 determines that the next switch 212 is not operated within a second predetermined time starting from the elapse of the first predetermined time (Yes in S09 in FIG. 2). ), The communication control process may be performed by operating the switch 212 after the second predetermined time has elapsed. Specifically, if there is no operation of the next switch 212 within the second predetermined time (Yes in S09 in FIG. 2) and the switch 212 is operated thereafter, the communication control unit 30 operates the switch 212. (Yes in S01), a series of processing is repeated from the reset of the counter 32 (S02). In this case, when the switch 212 is operated after the first predetermined time and the second predetermined time following the first switch 212, the communication control unit 30 operates the switch 212. Can be determined as an operation of the previous switch 212, and communication control processing can be performed.

  In the remote monitoring system 1 of the above embodiment, the set number N is 1 or more, but the set number N may be 0. When the set number N is 0, after the process of S12 in FIG. 3 (the count of the counter 32 is incremented by 1), the determination of S13 (determination of comparison between the operation number Csw of the switch 212 and the set number N) is performed. Instead, the process of S14 (communication start of the first call unit 213 and the second call unit 43) may be performed.

  In the remote monitoring system 1 of the above embodiment, the operation of the switch 212 is performed by pressing the call button of the intercom 211. For example, another button such as a floor button installed in the car of the elevator 2 is pressed. It may be performed by pressing. In this case, in S05 of FIG. 2, a voice guidance that prompts “pressing a floor button or the like within the second predetermined time” may be played.

  In the remote monitoring system 1 of the above embodiment, the switch 212 is operated by pressing one button. Instead, the switch 212 may be operated by pressing any one of a plurality of buttons. For example, the communication control unit 30 receives the input of the operation of the switch 212 regardless of whether the call button of the interphone 211 is pressed or the open / close button or floor button provided in the car is pressed. It is also good. As described above, when the switch 212 is operated by pressing any one of the plurality of buttons, the user in the car can operate the switch 212 only by pressing any one of the plurality of buttons. Operation by the user becomes easy.

  The buttons corresponding to the switch 212 may be different for each operation of the switch 212. For example, first, the switch 212 may be operated by pressing a button of the intercom 211, and then the switch 212 may be operated by pressing either the button of the intercom 211 or the open / close button. In this case, the voice guidance in S06 in FIG. 2 may be different every time this voice guidance is performed.

  In the remote monitoring system 1 of the above embodiment, the remote monitoring unit 3 has the communication control unit 30, but the monitoring terminal 4 or the like may have the communication control unit 30.

  As shown in FIG. 4, the monitoring terminal 4 may include a communication control unit 30 including an emergency determination unit 31, a counter 32, and a timer 33 in addition to the intercom 40. Even in this case, the communication control unit 30 determines the urgency of the operation of the switch 212, and when there is an urgency, the first call unit 213 and the second call unit 42 are switched by one switch operation. On the other hand, when there is no urgency, the first call unit and the second call unit 42 can be made callable by two or more switch operations. Further, in this remote monitoring system 1, since the remote monitoring unit 3 does not need to have the communication control unit 30, the amount of data in the memory of the remote monitoring unit 3 can be suppressed.

  As shown in FIG. 5, the remote monitoring system 1 includes a server 5 that can communicate with the remote monitoring unit 3 and the monitoring terminal 4, and the server 5 includes communication that includes an emergency determination unit 31, a counter 32, and a timer 33. You may have the control part 30. The remote monitoring unit 3 can communicate with the monitoring terminal 4 via the communication system R1 and can communicate with the server 5 via the communication system R2. The server 5 can communicate with the monitoring terminal 4 via the communication system R3. Each of the communication systems R1, R2, and R3 is a communication system including a telephone line, for example.

  In this remote monitoring system 1, when the remote monitoring unit 3 receives information about the state of the elevator 2 from the control microcomputer 210, the remote monitoring unit 3 communicates with the monitoring terminal 4 via the communication system R1. When the remote monitoring unit 3 receives an operation of the switch 212, the remote monitoring unit 3 communicates with the monitoring terminal 4 via the communication system R2, the server 5, and the communication system R3.

  Even in this case, the communication control unit 30 determines the urgency of the operation of the switch 212 of the first call unit 213, and when there is an urgency, the first call unit 213 and the first call unit 213 are operated with one switch operation. On the other hand, when there is no urgency, the first call part and the second call part 42 can be made callable by two or more switch operations. Further, in this remote monitoring system 1, since the remote monitoring unit 3 and the monitoring terminal 4 do not need to have the communication control unit 30, the amount of data in the memory of the remote monitoring unit 3 and the monitoring terminal 4 can be suppressed.

  As described above, the monitoring terminal 4 in FIG. 4 and the server 5 in FIG. 5 cause the first call unit 213 and the second call unit 42 to perform a switch operation a plurality of times (two or more times) in order to make a call. Thus, it is possible to make a call with the operator promptly in an emergency (that is, with a single switch operation) while preventing the operator from responding to a call for mischief or erroneous operation.

  In addition, about the communication system of the remote monitoring system 1, if the monitoring terminal 4 can communicate with the communication control part of the remote monitoring unit 3, the specific structure of each communication system will not be specifically limited. The information output unit 21 of the above embodiment is connected to the communication control unit 30 of the remote monitoring unit 3 by P2P. Alternatively, the information output unit 21 may be connected to the Internet using a wired line or wireless communication. Further, the communication system R1 is not limited to a communication system including a telephone line, and may be a communication system including the Internet using a wired line or wireless communication.

  In the remote monitoring system 1 of the above embodiment, the voice guidance (S05 in FIG. 2) for prompting “the operation of the call button of the intercom 211 within the second predetermined time” or “the operation of the call button of the interphone 211 is not performed” Although the voice guidance (S10 in FIG. 2) indicating that “end” is performed, these guidances are not limited to voice guidance, and may be displayed as character information on a display panel provided in the car, for example. Moreover, you may perform these guidance by both the display by an audio | voice and character information. By displaying the text information, the switch 212 can be operated even if a user in the car misses the voice guidance.

  Further, in the remote monitoring system 1 of the above embodiment, in the voice guidance prompting “operation of the call button of the intercom 211 within the second predetermined time” (S05 in FIG. 2), the call button of the interphone 211 is further pressed once. However, instead of this, it may be instructed to press the call button of the intercom 211 a plurality of times (for example, the number of times the switch 212 has been operated Csw is N or less than the set number). .

  Although the elevator 2 of the said embodiment was one unit | set, multiple units | sets may be sufficient. In this case, one remote monitoring unit 3 may monitor a plurality of elevators 2, or a plurality of remote monitoring units 3 may include a plurality of remote monitoring units 3 such that one remote monitoring unit 3 monitors one elevator 2. The elevator 2 may be monitored.

  The server 5 may be an external server or an in-house server. Moreover, although the number of servers 5 in the above embodiment is one, a plurality of servers 5 may be used.

DESCRIPTION OF SYMBOLS 1 ... Remote monitoring system, 2 ... Elevator (elevator), 20 ... Operation part, 21 ... Information output part, 210 ... Control microcomputer, 211 ... Interphone, 212 ... Switch, 213 ... First call part, 3 ... Remote monitoring unit, DESCRIPTION OF SYMBOLS 30 ... Communication control part, 31 ... Urgency judgment part, 32 ... Counter, 33 ... Timer, 4 ... Monitoring terminal, 40 ... Intercom, 41 ... Switch, 42 ... Second call part, 5 ... Server, R1, R2, R3 ... communication system

Claims (4)

An elevating device having a first communication unit that can communicate with a switch operation;
A monitoring terminal connected to the lifting device in a communicable manner and having a second call unit capable of making a call with the first call unit;
A communication control unit for controlling communication between the first call unit and the second call unit,
The communication control unit determines the urgency of the switch operation of the first call unit, and when there is urgency, the first call unit and the second call unit can be communicated with one switch operation. On the other hand, when there is no urgency, the first call unit and the second call unit can be communicated by one or more switch operations after the first predetermined time elapses from the previous switch operation. There line the communication control processing that,
When the communication control unit is not urgent and there is no new switch operation within a second predetermined time starting from the elapse of the first predetermined time, A remote monitoring system that outputs information notifying the end of the communication control process and starts the communication control process in response to the switch operation when a new switch operation is performed after the second predetermined time has elapsed. .   The remote monitoring system according to claim 1, wherein the communication control unit determines the urgency of the switch operation based on information on the state of the lifting device from the lifting device. A remote monitoring unit that is communicably connected to the lifting device and that monitors the status of the lifting device;
The lifting device has a control microcomputer that controls its own operation and outputs information on its own state,
The monitoring terminal or the remote monitoring unit includes the communication control unit,
The remote monitoring system according to claim 1, wherein the communication control unit determines the urgency of the switch operation based on information from the control microcomputer. The communication control unit causes the lifting device to output information that prompts the next switch operation,
The remote monitoring system according to claim 1 , wherein the first predetermined time is a time for outputting the information.

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