JP2016220071A - Remote monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to determine an orientation direction to a base station before a wireless communication device has become incapable of performing communication and make it possible to stably perform communication even when a plurality of wireless communication devices simultaneously try to establish the communication.SOLUTION: A remote monitoring system includes a management/control center 7 including: captured wireless base station storage means 7b for storing installation state information received by a data reception device 7a; wireless base station concentration determination means 7c that reads the installation state information stored in the captured wireless base station storage means 7b, compares the number of remote monitoring devices currently using a wireless base stations with a use number reference, and determines whether or not a wireless base station whose comparison result shows an excess over the use number reference can be switched to a sub use wireless base station of an existing remote monitoring device; and a wireless base station dispersion device 7d that, when the wireless base station concentration determination means 7c has determined that a wireless base station is available, stores information on a combination of the wireless base station and a remote monitoring device, and performs an instruction to perform adjustment or installation of a reflector of a wireless communication device of the existing remote monitoring device.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a remote monitoring system for remotely monitoring an elevator through wireless communication.

  A remote monitoring system that monitors the state of an elevator is performed by connecting a remote monitoring device installed in the elevator and a control center that monitors the elevator at a location remote from the remote monitoring device via a telephone network. As this telephone line network, a wired analog public line network, a wireless PHS network, or the like is used. In recent years, an IP (Internet Protocol) network may be used as a communication network.

  If an abnormality occurs in the elevator, the remote monitoring device notifies the control center via a communication line, and the control center instructs the sales office to take appropriate measures to correct the abnormality. Dispatch workers to restore elevators to deal with abnormalities.

  As one of the prior arts of such a remote monitoring system for equipment such as an elevator or equipment, data of equipment or equipment is collected by a portable communication device such as PHS, and communicated via a wireless communication line and a plurality of base stations. Patent Document 1 discloses a remote monitoring device for equipment / equipment for notifying a control center installed in a remote place.

  In order to ensure a stable communication state, in the installation of the portable communication device in the remote monitoring device, the installation position and the direction of the directional antenna are adjusted while checking the communication state between the portable communication device and the base station. It is necessary to determine whether installation is possible. Therefore, in the remote monitoring device of the prior art, the portable communication device is provided with a judgment indicator lamp that displays whether the electric field strength from the base station and the number of frame errors satisfy the predetermined condition, and according to the indication of the judgment indicator lamp. Thus, it is determined whether or not a portable communication device can be installed.

  At this time, the number of simultaneously connected portable communication devices in the base station is limited. By the way, even if it is determined that it is possible to install more than the number of simultaneously connected portable communication devices and they are properly installed, all the portable communication devices rarely perform wireless communication simultaneously with the same base station. Even if the number of portable communication devices that can be connected simultaneously is limited, there is usually no problem. However, when a wide-area disaster such as an earthquake occurs, the remote monitoring device in a limited area tries to communicate with the control center at the same time. Because it cannot be received and congestion occurs, and the direction of the directional antenna is fixed, even if another base station exists within the range where wireless communication is possible, wireless communication is performed via the other base station. There is a risk that communication between the remote monitoring device and the control center cannot be performed normally.

  Even after installing the portable communication device as described above, the wireless communication from the portable communication device is described in Patent Document 2 in consideration of the possibility that the base station is congested and the communication cannot be normally performed. Technology has been proposed. In this prior art, a subscriber-side radiotelephone connected to a public network via a radio local group formed with one base station selected from a plurality of base stations A directional antenna that can change the orientation of the base station, and a control means that selects a base station according to a predetermined standard and directs the directional antenna toward the selected base station, and is directed to the base station with the highest gain. If the base station cannot receive the signal, the direction of the directional antenna can be changed to the next higher gain base station. The possibility of communication can be increased as compared with the case where the directivity direction of the directional antenna is fixed to only one base station.

JP 2003-274036 A Japanese Patent Laid-Open No. 11-252000

  The conventional wireless telephone device disclosed in Patent Document 2 described above, that is, a wireless communication device, performs wireless communication with a base station, and changes the direction of a directional antenna when communication is impossible. , It is impossible to prevent the communication from becoming impossible in advance. In addition, since each radio telephone apparatus individually changes the direction of the directional antenna and selects a channel, another radio telephone apparatus cannot communicate because the direction of the directional antenna of one radio telephone apparatus is changed. There is a concern that it may take a long time until the direction of the directional antenna is determined by repetition of this.

  The present invention has been made based on the actual situation in the prior art described above, and its purpose is to determine the directivity direction with respect to the base station before the wireless communication apparatus becomes unable to communicate, and to simultaneously communicate with a plurality of wireless communication apparatuses. An object of the present invention is to provide a remote monitoring system that can communicate stably even when trying to do so.

  In order to achieve the above object, a remote monitoring system according to the present invention includes a plurality of remote monitoring devices that monitor elevators, a control center that is installed at a location remote from these remote monitoring devices and monitors the elevators, In a remote monitoring system comprising a wireless communication device connected to each of the remote monitoring devices and transmitting and receiving radio waves wirelessly, and a plurality of wireless base stations installed between the wireless communication device and the control center, Provided in association with each of the wireless communication devices, and provided with a reflector having directivity capable of obtaining a high gain only in a specific directional direction, each of the remote monitoring device, each of the each captured by the wireless communication device Storage means for storing communication state information including an ID of a radio base station, the number of radio base stations, and an electric field strength of each radio base station; and stored in the storage means The communication status information is read out, based on a predetermined installation standard, a main use radio base station and a sub use radio base station are selected, and the communication status information of the main use radio base station and the sub use radio base station An installation status information notifying unit for notifying the control center of the installation status information comprising: a data receiving device for receiving the installation status information from each of the remote monitoring devices; and the data receiving device. The captured radio base station storage means for storing the received installation status information, the installation status information stored in the captured radio base station storage means is read, and the remote monitoring device using the radio base station Radio that determines whether it is possible to switch to the sub-use radio base station of the existing remote monitoring device for radio base stations that exceed the use number standard When it is determined that the base station concentration determination means and the wireless base station concentration determination means can use the information, a combination information of the wireless base station and the remote monitoring device is stored, and the wireless communication of the existing remote monitoring device is stored. A radio base station distribution device that instructs to adjust or install the reflector provided in association with the device.

  According to the remote monitoring system of the present invention, the directivity direction with respect to the base station can be determined before the wireless communication device becomes unable to communicate, and stable communication can be performed even when a plurality of wireless communication devices attempt to communicate simultaneously. can do. As a result, the present invention makes it possible for each radio base station to communicate without causing congestion even when each remote monitoring device communicates with the control center at the same time in the event of a wide-area disaster such as an earthquake. And excellent operational quality can be ensured. Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

It is a figure which shows the structure of one Embodiment of the remote monitoring system which concerns on this invention. It is a figure which shows the connection relation of the new remote monitoring apparatus with which this embodiment is equipped, a some radio base station, and the existing remote monitoring apparatus. It is a flowchart which shows the process sequence in the newly installed remote monitoring apparatus with which this embodiment is equipped. It is a flowchart which shows the process sequence in the control center with which this embodiment is equipped.

  Embodiments of a remote monitoring system according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of an embodiment of a remote monitoring system according to the present invention.

  As shown in FIG. 1, a remote monitoring system according to the present embodiment includes an elevator 1 installed in a building and a remote monitoring device 2 connected to an elevator control panel 1 a for controlling the elevator 1 and monitoring the elevator 1. And a control center 7 installed at a location away from the remote monitoring device 2. In addition, the present embodiment is provided in association with a wireless communication device 2c that is connected to the remote monitoring device 2 and transmits and receives radio waves wirelessly, and a high gain is obtained only in a specific directivity direction. A reflector 3 having a plate shape or a parabolic antenna shape having directivity, and a sales office 8 that receives communication from the control center 7 and waits for an operator corresponding to various operations.

  The present embodiment is provided with a plurality of radio base stations 4a and 4b installed at a location distant from the building where the elevator 1 is provided and the control center 7, and is installed on the basis of a predetermined installation standard. 2c communicates between the remote monitoring device 2 and the control center 7 via a wireless communication line and the wireless communication base stations 4a and 4b. Communication between the control center 7 and the radio base stations 4 a and 4 b is performed via the public line 6.

  The remote monitoring device 2 for monitoring the elevator 1 is a wireless communication device 2c connected to the remote monitoring device 2 when the elevator abnormality detection means 2b detects an abnormality of the elevator 1 based on the monitoring information obtained from the elevator control panel 1a. To the control center 7 via one of the radio base stations 4a and 4b and the public line network 6, that the elevator 1 is in an abnormal state.

  The remote monitoring device 2 includes the number of wireless base stations 4a and 4b captured by the wireless communication device 2c connected to the remote monitoring device 2, the IDs of the wireless base stations 4a and 4b, and the electric fields of the wireless base stations 4a and 4b. When installing the storage unit (not shown) for storing the strength information (hereinafter referred to as “communication state information”) and the remote monitoring device 2, the communication state information stored in the storage unit is read out and determined in advance. Based on the installation standards, two main and sub stations are selected from the radio base stations 4a and 4b (hereinafter referred to as “main use radio base station 4a” and “sub use radio base station 4b”), and the main use radio is selected. It has installation state information notifying means 2a for notifying the control center 7 of installation state information composed of communication state information of the base station 4a and the sub-use radio base station 4b.

  Here, the installation state information notifying means 2a reads out the communication state information stored in a storage unit (not shown), whether or not the number of the radio base stations 4a and 4b captured by the radio communication device 2c is equal to or greater than a predetermined value, It is determined whether the electric field strengths of the radio base stations 4a and 4b are equal to or higher than a predetermined value, and when it is determined that both are higher than the predetermined value, the electric field strengths of the radio base stations 4a and 4b are compared, The radio base station 4a is determined as the main use radio base station mainly used, the radio base station 4b having the next highest electric field strength is determined as the sub use radio base station, and the installation state information is notified to the control center 7.

  The control center 7 connected to the public network 6 has a new remote monitoring device 2 and a data receiving device 7a for receiving various data from the existing remote monitoring device 5. The data receiving device 7a has a storage unit (not shown) that stores the installation state information of the main use radio base station 4a and the sub use radio base station 4b notified from the installation state information notification unit 2a. The control center 7 has capture radio base station storage means 7b for reading and storing the installation state information of the main use radio base station 4a and the sub use radio base station 4b stored in the storage unit.

  In addition, when the installation status information of the main use radio base station 4a and the sub use radio base station 4b is stored in the capture radio base station storage means 7b, the control center 7 is stored in the capture radio base station storage means 7b. The installation status information of the main use radio base station 4a and the sub use radio base station 4b is read, and the number of the remote monitoring devices 2 and the existing remote monitoring devices 5 that are using the main use radio base station 4a are within the use number standard. If the number of remote monitoring devices 2 and existing remote monitoring devices 5 that are using the secondary use radio base station 4b is within the usage number criterion Radio base station concentration determination means 7c for determining whether or not.

  If the radio base station concentration determination means 7c determines that the main use radio base station 4a and the sub use radio base station 4b of the remote control device 2 exceed the use number standard, the control center 7 Whether or not the remote monitoring device 2 and the existing remote monitoring device 5 that are using the used wireless base station 4a and the sub-used wireless base station 4b are within the usage number standard in other wireless base stations, the wireless base station concentration determination means 7c The wireless base station distribution device 7d that repeatedly performs the search so as to be a combination of the wireless base stations 4a and 4b within the usage standard and the remote monitoring device 2 and the existing remote monitoring device 5 is provided. Yes.

  In addition, the control center 7 has a sales office so as to be a combination of the radio base stations 4a and 4b that are within the use number standard searched by the radio base station distribution device 7d, and the remote monitoring device 2 and the existing remote monitoring device 5. Give corrective instructions to 8 Upon receiving this correction instruction, the sales office 8 dispatches workers, installs the reflector 3 in the remote monitoring device 2 and the wireless communication device, and adjusts by measuring and comparing the electric field strengths of the wireless base stations 4a and 4b. Do. The sales office 8 adjusts a reflector (not shown) of the existing remote monitoring device 5, for example.

  FIG. 2 is a diagram showing a connection relationship between the newly installed remote monitoring device provided in the present embodiment, a plurality of radio base stations and existing remote monitoring devices, and FIG. 3 is a process in the newly installed remote monitoring device provided in the present embodiment. FIG. 4 is a flowchart showing a processing procedure in a control center provided in the present embodiment.

  Next, mainly based on FIGS. 3 and 4, the processing operation for improving the wireless quality during a wide-area disaster such as an earthquake of the remote monitoring system according to the present embodiment will be described. In the processing procedure of the newly installed remote monitoring apparatus 2 shown in FIG. 3, S is added to the processing number, and in the processing procedure of the control center 7 shown in FIG.

  In step S1 of FIG. 3, the newly installed / adjusted installation status information notifying means 2a of the remote monitoring device 21 shown in FIG. 2 reads out the communication status information data stored in the storage unit of the new remote monitoring device 21. .

  Next, in step S2, the installation state information notifying means 2a compares the read communication state information data with the installation standard, and determines the number of radio base stations captured by the newly installed remote monitoring device 21 and the radio base station. Determine whether the electric field strength is within the installation standards.

  At this time, the installation state information notifying unit 2a has the number of radio base stations in the read communication state information data and the electric field strength of each radio base station below a predetermined value (for example, the number of radio base stations is 2). If it is determined that the electric field strength is less than 40 db (NO in step S2), the process returns to step S1.

  In step S2, the installation state information notifying unit 2a determines that the number of radio base stations in the read communication state information data and the electric field strength of each radio base station are equal to or greater than a predetermined value (for example, the number of radio base stations is two). When each field strength is determined to be 40 db or more (YES in step S2), the field strengths of the respective radio base stations are compared in step S3, and the radio base station having the highest field strength is mainly used. The radio base station having the next highest electric field strength is selected as the sub use radio base station 23.

  Next, in step S4, the installation state information notifying means 2a notifies the control center of communication state information (hereinafter referred to as “installation state information”) of the main use radio base station 22 and the sub use radio base station 23, The processing operation of the new remote monitoring device 21 provided in the present embodiment is terminated.

  On the other hand, in the procedure T1 of FIG. 4, the captured radio base station storage unit 7b of the control center 7 checks whether or not the notification of the installation state information from the newly installed remote monitoring device 21 has arrived.

  At this time, the captured radio base station storage unit 7b returns to the procedure T1 when the notification of the installation state information from the newly installed remote monitoring device 21 has not arrived (NO in the procedure T1).

  In procedure T1, the captured radio base station storage means 7b of the control center 7 receives a notification of installation status information from the newly installed remote monitoring device 21 (YES in procedure T1). The concentration determination unit 7c reads the installation status information of the radio base stations 22, 23, 24, and 25 shown in FIG. 2 stored in the captured radio base station storage unit 7b, and uses the main radio base station 22 of the newly installed remote monitoring device 21. It is determined whether the number of the existing remote monitoring devices 22a, 22b, 22c, 22d, and 22e that are using is within the usage number standard.

  At this time, the radio base station concentration determination means 7c determines that the number of existing remote monitoring devices 22a, 22b, 22c, 22d, and 22e that are using the main usage radio base station 22 of the new remote monitoring device 21 is within the usage number standard (for example, If the number of existing remote monitoring devices is four) (YES in T2), the reflector 3 is installed in the wireless communication device 21c connected to the new remote monitoring device 21 in step T3, and the main use radio base Work to adjust the reflector 3 so that the electric field strength of the station 22 and the secondary usage radio base station 23 is measured and the electric field strength of the primary usage radio base station 22 is larger than the electric field strength of the secondary usage radio base station 23 The operation of the control center 7 according to the present embodiment is terminated.

  In step T2, the radio base station concentration determination unit 25c determines that the number of existing remote monitoring devices 22a, 22b, 22c, 22d, and 22e that are using the main radio base station 22 of the new remote monitoring device 21 exceeds the usage number standard. 2 (for example, the number of existing remote monitoring devices is five) (NO in T2), the existing remote monitoring device shown in FIG. It is determined whether the number of the monitoring devices 23a, 23b, 23c, 23d, and 23e is within the usage number criterion.

  At this time, the radio base station concentration determination unit 7c determines that the number of existing remote monitoring devices 23a, 23b, 23c, 23d, and 23e that are using the sub-use radio base station 23 of the newly installed remote monitoring device 21 exceeds the usage reference number. If (for example, the number of existing remote monitoring devices is 5) (NO in T4), the wireless base station distribution device 7d is using the main wireless base station 22 of the newly installed remote monitoring device 21 in step T6. When the existing remote monitoring devices 22a, 22b, 22c, 22d and 22e are switched to the main or sub-use radio base station 24 shown in FIG. 2 which is not currently used, the existing remote monitoring devices 22a, 22b, 22c and 22d , 22e is determined whether the number of remote monitoring devices 24a, 24b, 24c, 24d, 24e shown in FIG.

  At this time, the wireless base station distribution device 7d switches each of the existing remote monitoring devices 22a, 22b, 22c, 22d, and 22e that are using the primary usage wireless base station 22 of the newly installed remote monitoring device 21 to the secondary usage wireless base station 24. (For example, in the case where the existing remote monitoring device 22d uses the radio base station 24), the existing remote monitoring device 24a that is using the sub-use radio base station 24 of the existing remote monitoring devices 22a, 22b, 22c, 22d, and 22e. , 24b, 24c, 24d, and 24e are within the usage standard (for example, the number of existing remote monitoring devices is four) (YES in step T6), a notification is given to the sales office 8 in step T7. The reflector (not shown) of the wireless communication device connected to the existing remote monitoring devices 22a, 22b, 22c, 22d, and 22e (for example, the existing remote monitoring device 22d) is mainly used. Measure the field strengths of the radio base station 22 and the sub-use radio base station 24, and adjust a reflector (not shown) so that the field strength of the sub-use radio base station 24 is greater than the field strength of the main use radio base station 22. .

  Next, in step T8, the reflector 3 is installed in the radio communication device 2c connected to the newly installed remote monitoring device 21, the electric field strengths of the main use radio base station 22 and the sub use radio base station 23 are measured, and the main use radio base station The operator is notified to adjust the reflector 3 so that the electric field strength of the station 22 is larger than the electric field strength of the sub-use radio base station 23, and the processing operation of the control center 7 according to the present embodiment is finished.

  In step T6, the radio base station distribution device 7d switches the existing remote monitoring devices 22a, 22b, 22c, 22d, and 22e that are using the main usage radio base station 22 of the newly installed remote monitoring device 21 to the sub usage radio base station 24. (For example, in the case where the existing remote monitoring device 22d uses the radio base station 24), the existing remote monitoring device 24a that is using the sub-use radio base station 24 of the existing remote monitoring devices 22a, 22b, 22c, 22d, and 22e. , 24b, 24c, 24d, 24e exceeds the usage standard (for example, the number of existing remote monitoring devices is five) (NO in step T6), the wireless base station distribution device in step T9 7d shows that the existing remote monitoring devices 23a, 23b, 23c, 23d, and 23e that are using the secondary usage radio base station 23 of the newly installed remote monitoring device 21 are the secondary usage radio base stations shown in FIG. When switching to the station 25, the existing remote monitoring devices 25a, 25b, 25c, 25d, and 25e shown in FIG. 2 that are using the sub-use radio base stations 25 of the existing remote monitoring devices 23a, 23b, 23c, 23d, and 23e are used. Determine if the number is within the usage criteria.

  At this time, in the wireless base station distribution device 7d, the existing remote monitoring devices 23a, 23b, 23c, 23d, and 23e that are using the secondary usage wireless base station 23 of the newly installed remote monitoring device 21 are switched to the secondary usage wireless base station 25. (For example, in the case where the existing remote monitoring device 23d uses the radio base station 25), the remote monitoring devices 25a and 25b that are using the sub-use radio base station 25 of the existing remote monitoring devices 23a, 23b, 23c, 23d, and 23e. , 25c, 25d, and 25e are within the usage standard (for example, the number of existing remote monitoring devices is four) (YES in step T9), the service office 8 is notified in step T10. An operator at the sales office 8 uses a reflector (not shown) of a wireless communication device connected to the existing remote monitoring devices 23a, 23b, 23c, 23d, and 23e (for example, the existing remote monitoring device 23d) as the sub-use wireless base station 23, When the electric field strength of the secondary usage radio base station 25 is measured, adjustment is performed so that the electric field strength of the secondary usage radio base station 25 becomes larger than the electric field strength of the secondary usage radio base station 23.

  Next, in step T11, the reflector 3 is installed in the wireless communication device 2c connected to the newly installed remote monitoring device 21, the electric field strengths of the main use radio base station 22 and the sub use radio base station 23 are measured, and the sub use radio is transmitted. The operator is notified to adjust the reflector 3 so that the electric field strength of the base station 23 is larger than the electric field strength of the main use radio base station 22, and the processing operation of the control center 7 according to the present embodiment is finished. .

  In step T9, the wireless base station distribution device 7d switches the existing remote monitoring devices 23a, 23b, 23c, 23d, and 23e that are using the secondary usage wireless base station 23 of the newly installed remote monitoring device 21 to the secondary usage wireless base station 25. (For example, in the case where the existing remote monitoring device 23d uses the radio base station 25), the remote monitoring devices 25a, 23b, 23c, 23d, 23e of the existing remote monitoring devices 23a, 23b, 23c, 23d, 23e are using the remote monitoring device 25a, When the number of 25b, 25c, 25d, and 25e exceeds the usage number standard (for example, the number of existing remote monitoring devices is five) (NO in step T9), in step T12, the new remote monitoring device 21 Remote monitoring devices 22a, 22b, 22c, 22d, and 22e using the main radio base station 22 may not be able to notify the control center 7 when a wide-area disaster such as an earthquake occurs. To record a certain effect.

  Next, in step T13, when the reflector 3 is installed in the wireless communication device 2c connected to the newly installed remote monitoring device 21 and the electric field strengths of the main use radio base station 22 and the sub use radio base station 23 are measured, The operator is notified to adjust the reflector 3 so that the electric field strength of the use radio base station 22 is larger than the electric field strength of the sub use radio base station 23, and the processing operation of the control center 7 according to the present embodiment is performed. finish.

  As described above, the installation state information notifying means 2a of the new remote monitoring device 21 reads out the communication state information captured by the wireless communication device 2c connected to the new remote monitoring device 21, and the wireless base station that the wireless communication device 2c captures. It is determined whether the number of stations 22 and 23 is equal to or greater than a predetermined value or the electric field strength of the radio base stations 22 and 23 is equal to or greater than a predetermined value. The radio base stations 22 and 23 having the highest electric field strength are determined as the main use radio base station 22, and the radio base station having the next highest electric field strength is determined as the sub use radio base station 23. Notify the control center 7.

  On the other hand, when the captured radio base station storage unit 7b of the control center 7 receives a notification of installation status information from the newly installed remote monitoring device 21, it reads and stores the installation status information stored in the data receiving device 7a.

  When the installation state information is stored in the captured radio base station storage unit 7b, the radio base station concentration determination unit 7c reads the installation state information stored in the captured radio base station storage unit 7b, and When it is determined that the number of existing remote monitoring devices 22a, 22b, 22c, 22d, and 22e that are using the wireless base station 22 exceeds the usage number standard, the remote monitoring device that is using the secondary wireless base station 23 It is determined whether the numbers 23a, 23b, 23c, 23d, and 23e are within the usage number criterion.

  When the radio base station distribution device 7d determines that the main use radio base station 22 and the sub use radio base station 23 of the newly installed remote monitoring device 21 exceed the usage number standard, the main use radio base station 22 and When switching to the sub-use radio base stations 24 and 25 of each existing remote monitoring device that is using the sub-use radio base station 23, it is determined whether it is within the reference number of use or by the radio base station concentration determination means 7c, and within the use number reference The combination of each wireless base station and each remote monitoring device is repeatedly searched.

  The control center 7 issues correction instructions to the sales office 8, dispatches workers, and sets each radio base station, each radio base station that is within the usage standard, and each remote monitoring device, The electric field strength of each sub-use radio base station is compared, and a reflector (not shown) of each radio communication device connected to each existing remote monitoring device is adjusted.

  According to the remote monitoring system according to the present embodiment, the level of the number of remote monitoring devices that use each wireless base station is equalized within the usage number standard by the above processing operation, so that the wireless communication device can communicate with each other. The directivity direction with respect to the base station can be determined before it becomes possible, and stable communication can be performed even when a plurality of wireless communication devices try to communicate at the same time. As a result, in the present embodiment, when a wide-area disaster such as an earthquake occurs, even when each remote monitoring device communicates with the control center 7 at the same time, it is possible for each wireless base station to communicate without causing congestion, which is stable and excellent. High operational quality can be ensured.

  In addition, when instructing the operator to adjust each reflector so that it is a combination of each radio base station and each remote monitoring device within the usage standard, each radio base station to be adjusted and each remote monitoring If the latitude / longitude of the device is known, the control center 7 may calculate which direction each reflector should be adjusted to instruct the operator on the direction. At this time, the worker adjusts the reflector by using an azimuth magnet or an electronic device in which the azimuth is known.

  In addition, when the current installation angle of the reflector is known in addition to the latitude and longitude of each radio base station and each remote monitoring device to be adjusted, the control center 7 rotates each reflector in any direction. It is advisable to calculate whether or not it is necessary to instruct the worker about the rotation angle. At this time, the worker adjusts the rotation angle of the reflector based on a memory (not shown) formed in the reflector so that the rotation angle specified by the control center 7 is obtained.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. All technical matters included in the technical idea described in the claims are defined by the present invention. It becomes the object of. The above-described embodiments show preferred examples, but those skilled in the art can realize various alternatives, modifications, variations, and improvements from the contents disclosed in this specification. These are included in the technical scope described in the appended claims.

DESCRIPTION OF SYMBOLS 1 Elevator 1a Elevator control panel 2,5 Remote monitoring apparatus 2a Installation state information notification means 2b Elevator abnormality detection means 2c Wireless communication apparatus 3 Reflector 4a, 4b Radio base station 6 Public line network 7 Control center 7a Data receiver 7b Capture radio base Station storage means 7c Radio base station concentration determination means 7d Radio base station distribution apparatus 8 Sales office 21 New remote monitoring apparatus 22 Primary usage radio base stations 22a, 22b, 22c, 22d, 22e Existing remote monitoring equipment 23 Secondary usage radio base station 23a , 23b, 23c, 23d, 23e Existing remote monitoring device 24 Secondary usage radio base station 24a, 24b, 24c, 24d, 24e Existing remote monitoring device 25 Secondary usage radio base station 25a, 25b, 25c, 25d, 25e Existing remote monitoring device

Claims (2)

A plurality of remote monitoring devices that monitor the elevator, and a remote control device that is installed at a location apart from these remote monitoring devices and that is connected to each of the control center that monitors the elevator and the remote monitoring device, and that transmits and receives radio waves wirelessly In a remote monitoring system comprising a communication device and a plurality of radio base stations installed between the radio communication device and the control center,
Provided in association with each of the wireless communication devices, comprising a reflector having a directivity capable of obtaining a high gain only in a specific directivity direction,
Each of the remote monitoring devices
Storage means for storing communication state information including an ID of each radio base station captured by the radio communication device, the number of radio base stations, and an electric field strength of each radio base station;
The communication state information stored in the storage means is read out, and based on a predetermined installation standard, a main use radio base station and a sub use radio base station are selected, the main use radio base station, and the sub use radio Installation status information notifying means for notifying the control center of installation status information comprising the communication status information of a base station,
The control center is
A data receiving device for receiving the installation state information from each of the remote monitoring devices;
Captured radio base station storage means for storing the installation status information received by the data receiving device;
Read the installation status information stored in the captured radio base station storage means, compare the number of the remote monitoring devices using the radio base station with the usage number criterion, and the radio base exceeding the usage number criterion For the station, a radio base station concentration determination means for determining whether it is possible to switch to the sub-use radio base station of the existing remote monitoring device;
When it is determined that the wireless base station concentration determining means determines that the wireless base station can be used, information on a combination of the wireless base station and the remote monitoring device is stored and provided in association with the wireless communication device of the existing remote monitoring device A remote monitoring system comprising: a radio base station distribution device that instructs to adjust or install the reflector. The remote monitoring system according to claim 1,
In response to an instruction from the control center, it has a sales office where workers corresponding to various operations are on standby.
The sales office measures the electric field strengths of the primary usage radio base station and the secondary usage radio base station of the remote monitoring device for the worker according to an instruction from the radio base station distribution device, and A remote monitoring system, characterized in that a process of adjusting the position and orientation of the reflector is executed so that the electric field strength of a used radio base station is larger than the electric field strength of the main used radio base station.