JP2005157744A - Building management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain the efficiency of building management by eliminating the need for an operator to perform the registering operation of the position information of terminal equipment by autonomously constructing a radio network. <P>SOLUTION: This facility monitor controller 3 and a center server 1 and mobile terminal equipment 5 are provided with communicating means for connecting them through a radio network. Each communicating means is provided with a detecting part which detects other devices such as the facility monitor control means 3, center server 1 or mobile terminal equipment 5 present in a preliminarily set predetermined communication distance and a communicating part which constructs a radio network with those other devices detected by the detecting part, and transmits and receives information to be managed by its own device, and relays the information managed by the other device. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a building management system, and more particularly to a building management system using a LAN.

  A system that constructs a network using a LAN and manages the inside of the building has been proposed (see, for example, Patent Document 1).

  In the conventional building management system described in Patent Document 1 above, control of lighting and air conditioning in a plurality of partitioned areas such as tenant areas in a building is managed by a server device connected to the LAN, and this management is performed. Based on the above, the lighting / air-conditioning of each partition area is controlled by the terminal device connected to the LAN arranged in each partition area. That is, the server device notifies the terminal device of information on which area the fluorescent lamp and the air conditioner control based on information set in advance. To control the illumination of the corresponding area. Accordingly, the installation location of each terminal device has to be set in the server device in advance.

JP-A-8-96970 (FIG. 1)

  Since the conventional building management system is configured as described above, it is necessary to register the position of each terminal device in the server device by an operator operation. When the number of terminal devices is large, a load of registration operation is applied. In addition, since registration is performed by an operator operation, there is a problem that a registration error occurs and the efficiency of building management decreases.

  The present invention has been made to solve such problems, and by building a wireless network autonomously, the operator does not need to register the location information of the terminal device, and the building management efficiency is improved. The purpose is to obtain a management system.

  The present invention acquires monitoring information of equipment to be monitored and controlled installed in a building, equipment monitoring control means for controlling the equipment, collecting the monitoring information, and sending a control signal to the equipment monitoring control means A building management system comprising: a center server that transmits to the mobile station; and a mobile terminal device that communicates with the center server and displays the collected monitoring information, wherein the facility monitoring control means, the center server And each of the said mobile terminal devices has a communication means which connects them with a wireless network, and each said communication means is the said equipment monitoring control which exists in the predetermined communication distance set beforehand Means, a detection unit for detecting the center server, and the mobile terminal device, and other devices detected by the detection unit The communication means provided in the mobile terminal device further comprises a communication unit that constructs a wireless network and transmits and receives information managed by the own device and relays information managed by the other device. Among the other devices detected by the detection unit, the position confirmation unit for confirming the position of the own device from the position of at least one of the facility monitoring control means and the center server where the installation location is fixed; A building including a display unit that searches for the facility installed within a predetermined range centered on the position of the own device confirmed by the location confirmation unit and displays the monitoring information of the facility with priority It is a management system.

  According to this invention, since it is configured as described above, it is possible to autonomously acquire the position information of the own apparatus from the position of another fixed apparatus, and thereby, a wireless network is constructed. Therefore, it is possible to obtain a building management system that eliminates the need to register the location information of the terminal device by the operator and improves the efficiency of building management.

Embodiment 1 FIG.
A first embodiment of the present invention will be described below with reference to FIG. The present invention is a building management system for monitoring and controlling facilities in a building. A function and service based on the location of a mobile terminal device that is configured using a wireless LAN and configured using the network is provided. This is a building management system to be realized.

  In FIG. 1, the center server 1 is connected to the equipment monitoring control device 3 via a relay device 2 and other devices or directly via a wireless network (wireless LAN). An arbitrary number of relay devices 2 can be installed. The monitoring control target equipment 4 is connected to the equipment monitoring control device 3 and is monitored and controlled. Although the monitoring control target equipment 4 and the equipment monitoring control apparatus 3 may be connected one-to-one, a plurality of monitoring control target equipments 4 are connected to one equipment monitoring control apparatus 3 as shown in FIG. You may do it. These may be connected by a wireless network, but may be connected by a signal line such as a dedicated line or a communication network as shown in FIG. In addition, the mobile terminal device 5 is connected to the center server 1 via the equipment monitoring control device 3 or the relay device 2 and is connected to the monitoring control target equipment 4 through a wireless network.

  Note that the equipment monitoring control device 3 acquires monitoring control information indicating the state and the like from the monitoring control target equipment 4 provided in the building, and controls the monitoring control target equipment 4 based on the acquired monitoring control information. . In this description, the monitoring information indicating the status of the monitoring control target equipment 4 and the control information for controlling the monitoring control target equipment 4 are collectively referred to as monitoring control information. The center server 1 collects the monitoring control information or transmits a control command or the like from the equipment monitoring control device 3 via the relay device 2 or directly. In addition, the mobile terminal device 5 communicates with the center server 1 to display the monitoring control information of the monitoring control target equipment 4 and transmit the control information by the operation of the operator. Each of these devices, that is, the center server 1, the relay device 2, the equipment monitoring control device 3, and the mobile terminal device 5 includes a communication unit for transmitting data such as monitoring control information over a wireless network. Yes. The communication means of each of these devices includes a detection unit that detects the equipment monitoring control device 3, the center server 1, and the mobile terminal device 5 existing within a predetermined communication distance, and the detection And a communication unit that constructs a wireless network with those other devices detected by the unit, transmits and receives information managed by the own device, and relays information managed by the other device. Moreover, the communication means provided in the mobile terminal device 5 is further based on the position information of the equipment monitoring control device 3 or the center server 1 where the installation location is fixed, among other devices detected by the detection unit, A position confirmation unit that confirms the position of the own device, and a monitoring control target facility 4 that is installed within a predetermined range centered on the position of the own device confirmed by the position confirmation unit. And a display unit that preferentially displays the monitoring control information of the target equipment 4. Thereby, since the mobile terminal device 5 can confirm the position of the own terminal by acquiring the position information of the adjacent fixed device, each monitoring control target facility registered in advance based on the position information can be confirmed. The nearby monitoring control target equipment 4 can be searched from the position information 4 and the monitoring control information of the neighboring monitoring control target equipment 4 can be preferentially displayed on the screen. Note that the location information of the equipment monitoring control device 3 or the center server 1 where the installation location is fixed may be stored in advance in the center server 1 or the mobile terminal device 5, or may be obtained from GPS or the like. It may be. Also in the case of storing, in the case of the present embodiment, the number of devices for registering position information is significantly smaller than in the conventional system, so that the load on the operator is small, and thus erroneous registration occurs. The possibility can be kept low.

  Next, the operation will be described. As a communication means among the center server 1, the relay device 2, the equipment monitoring control device 3, and the mobile terminal device 5, for example, a wireless network whose specifications are defined in IEEE 802.15.4 is used. A terminal connected to the wireless network makes an inquiry to all nearby terminals existing within a communication distance, obtains neighboring terminal information, and obtains a unique address for each terminal. When transmitting data, if a terminal existing within the communication distance of the transmission source terminal is the transmission destination, the data is directly transmitted by designating the destination address. On the other hand, when communicating, if a terminal that does not exist within the communication distance of the transmission terminal is a transmission destination, data is transmitted via a third party terminal that exists within the communication distance. In this case, the first transmission source terminal first transmits data to a nearby terminal. Since the terminal of the received data is different from the destination of the received data, the terminal that has received the data is searched for whether or not the corresponding destination is included in the neighboring terminal information that the terminal has. If it is included, the data is transmitted directly to the corresponding terminal. If it is not included, it is transmitted to a nearby terminal without changing the destination included in the received data. By repeating the above process, the data is delivered to the destination terminal.

  In the relay processing described above, each terminal learns the number of hops (the number of relays) until it reaches the destination terminal. When a plurality of terminals are relayed before a terminal sends data to another terminal, there are a large number of paths. In selecting a path, a path with the smallest number of hops is selected. Part of the data to be communicated has routing information. The first transmitting terminal sets its own address information as routing information and transmits data. When relaying occurs, the relay terminal adds its own address information to the routing information. By combining this routing information and the neighboring terminal information possessed by each terminal, the optimum route can be selected in the second and subsequent communications.

  Next, the update process of the optimum route established last time will be described. When a relay terminal loses its function due to a failure or the like, the transmission source terminal detects a transmission error of the corresponding relay terminal, and retransmits it to another different nearby terminal, thereby establishing the optimum route. Figured. On the other hand, when a new terminal is added, the added terminal makes an inquiry to a nearby terminal, so that the other terminals recognize the addition of the corresponding terminal, update their own neighboring terminal information, When the transmission data from the corresponding terminal is received, the optimum route is updated.

  In general, in a wireless network defined by IEEE 802.15.4, the communication distance has a certain limit, and when 2.4 GHz, which does not require a license in Japan, is used, it is 10 to 75 m. For example, since a device can be installed within a certain interval in a building, the building management system can autonomously construct a network network by using the above-described wireless network. In addition, in the wireless network defined by IEEE802.15.4, the specification is set for the purpose of downsizing, and it is possible to realize a terminal having a size of 500 yen coin, which is easily mounted on each device. be able to.

  Further, by installing fixed devices or fixed terminals whose positions are fixed at appropriate intervals, the mobile terminal device 5 can fix the center server 1, the relay device 2, the equipment monitoring control device 3, the monitoring control target equipment 4, or the like. Since it becomes possible to confirm the position of the own terminal from the position of the device or the fixed terminal, and thereby, it is possible to search for the monitoring control target equipment 4 existing at a position close to the own terminal, the mobile terminal The apparatus 5 preferentially displays the monitoring control information of the monitoring control target equipment 4 near the position of the own terminal.

  As described above, according to the present invention, each device 1, 2, 3 and 5 has a communication means, autonomously recognizes the presence of a neighboring device, constructs a wireless network, and is optimal. A communication path can be established, information managed by the own device can be transmitted, and information managed by other devices can be relayed. Furthermore, since the mobile terminal device 5 can automatically acquire the position information, the operator does not input any position information and gives priority to the monitoring control information of the equipment near the position of the own terminal device. It is possible to display.

Embodiment 2. FIG.
In the present embodiment, the equipment monitoring control device of the first embodiment is installed for each illumination / air-conditioning area. That is, in this embodiment, as shown in FIG. 2, the building is divided into a plurality of illumination / air-conditioning areas (in FIG. 2, it is divided into three areas). Accordingly, a monitoring control screen in which a display screen is divided for each illumination / air-conditioning area is prepared in the mobile terminal device 25. Thereby, the mobile terminal device 25 is present from the position of its own device based on the positional information obtained from the nearby fixed device, or the monitoring control screen of the nearest lighting / air-conditioning area is automatically displayed. Since the display can be performed, it is possible to easily perform the monitoring control without performing the screen selection operation in the case of patrol in the building, and the efficiency can be improved.

  FIG. 2 is a diagram showing a configuration of the building management system according to the present embodiment. In FIG. 2, the center server 21 is connected to the equipment monitoring control device 23 via the relay device 22 and other devices or directly by a wireless network (wireless LAN). Any number of one or more relay devices 22 can be installed. In addition, the monitoring control target facility 24 (for example, in this embodiment, a lighting device or an air conditioner) is connected to the facility monitoring control device 23 and is monitored and controlled. The monitoring control target equipment 24 and the equipment monitoring control device 23 may be connected one-to-one. However, as shown in FIG. 2, a plurality of monitoring control target equipments 24 installed in one lighting / air-conditioning area are provided. , It may be connected to one facility monitoring control device 23 installed in the same illumination / air-conditioning area. These may be connected by a wireless network, but may be connected by a signal line as shown in FIG. In addition, the mobile terminal device 25 is connected to the center server 21 via the equipment monitoring control device 23 or the relay device 22, and is connected to the monitoring control target equipment 24 by a wireless network. Since the operation of each device or terminal is the same as that shown in Embodiment 1, the description thereof is omitted here.

  As described above, in this embodiment, the interior of a building is divided into a plurality of lighting / air-conditioning areas, and the mobile terminal device 25 is provided with a monitoring control screen divided for each lighting / air-conditioning area. This makes it possible to automatically display the monitoring control screen of the corresponding lighting / air-conditioning area from the position information of the mobile terminal device 25, so that the screen selection operation is not performed during the patrol in the building. Monitoring control can be easily performed, and efficiency can be improved.

Embodiment 3 FIG.
In the present embodiment, disaster prevention equipment (emergency notification means) such as an automatic fire notification facility 36 for transmitting an emergency signal to the center server 31 in the event of an emergency is added to the first embodiment, as shown in FIG. In an emergency, an emergency signal such as a fire signal is transmitted from the disaster prevention facility to the center server 31. The transmission method may be any of direct connection, connection by a local area network (LAN), or connection by the equipment monitoring control device 33. Similarly to the first embodiment, the mobile terminal device 35 has its own terminal from the position of the fixed device or the fixed terminal such as the center server 31, the relay device 32, the equipment monitoring control device 33 or the monitoring control target equipment 34. It is possible to confirm the position. As a result, the center server 31 uses the information such as the fire signal taken from the disaster prevention facility and the position information of each mobile terminal device 35 to cause the location of the fire and the mobile terminal device 35 to each mobile terminal device 35. The information of the optimal evacuation route obtained based on the current location of the vehicle is notified, and safe and reliable evacuation guidance from the fire is realized. The fire / evacuation information to the mobile terminal device 35 enables notification from the center server 31 to the mobile terminal device 35 and information transmission according to a request from the mobile terminal device 35.

  FIG. 3 is a diagram showing the configuration of the building management system according to the present embodiment. In FIG. 3, an automatic fire alarm facility 36 is connected to the center server 31. The connection may be performed by a wireless network (wireless LAN), but may be connected by a signal line as shown in FIG. The center server 31 is connected to the equipment monitoring control device 33 via the relay device 32 and other devices or directly via a wireless network (wireless LAN). One or more relay devices 32 can be installed. The monitoring control target facility 34 is connected to the facility monitoring control device 33 and is monitored and controlled. Although the monitoring control target equipment 34 and the equipment monitoring control apparatus 33 may be connected one-to-one, a plurality of monitoring control target equipments 34 are connected to one equipment monitoring control apparatus 33 as shown in FIG. You may make it do. These may be connected by a wireless network, but may be connected by a signal line as shown in FIG. In addition, the mobile terminal device 35 is connected to the center server 31 via the equipment monitoring control device 33 or the relay device 32, and is connected to the monitoring control target equipment 34 by a wireless network. Since the operation of each device or terminal is the same as that shown in Embodiments 1 and 2, the description thereof is omitted here.

  As described above, in the present embodiment, in an emergency, an emergency signal such as a fire signal is transmitted from the disaster prevention facility such as the automatic fire alarm facility 36 to the center server 31, whereby the center server 31 transmits a fire signal or the like. Information is taken in and information on the optimum evacuation route obtained from the location of the fire occurrence location and the position of the mobile terminal device 35 is sent to each mobile terminal device 35 based on the acquired information and the position information of each mobile terminal device 35. Since it is generated and notified, and safe and reliable evacuation guidance from a fire is realized, evacuation guidance can be performed accurately even in the event of a fire.

Embodiment 4 FIG.
In the present embodiment, an electronic lock system (locking / unlocking means) (not shown) for locking / unlocking a key installed in one or more places is added to the first embodiment, and the electronic lock system. And a security system 46 for storing the lock / unlock status information, and the key lock status information is taken into the center server 41 from the security system 46 as shown in FIG. The capturing method may be any of direct connection, connection by a local area network (LAN), and connection by the equipment monitoring control device 43. Similarly to the first embodiment, the mobile terminal device 45 is connected to its own terminal from the position of the fixed device or the fixed terminal such as the center server 41, the relay device 42, the equipment monitoring control device 43 or the monitoring control target equipment 44. It is possible to confirm the position. The center server 41 notifies the mobile terminal device 45 of the key locking state information based on the acquired key locking state information and the position information of the mobile terminal device 45. Thereby, immediately before the guard carrying the mobile terminal device 45 passes, a control signal is transmitted from the mobile terminal device 45 to the electronic lock system, and the key of the electronic lock system is automatically unlocked. After passing (or after a predetermined period of time), the key is automatically locked to realize interlocking control that can efficiently perform guard patrol. Information on the key locking state for the mobile terminal device 45 enables notification from the center server 41 to the mobile terminal device 45 and unlocking operation according to a request from the mobile terminal device 45.

  FIG. 4 is a diagram showing the configuration of the building management system according to the present embodiment. In FIG. 4, a security system 46 is connected to the center server 41. The connection may be performed by a wireless network (wireless LAN), but may be connected by a signal line as shown in FIG. The center server 41 is connected to the equipment monitoring control device 43 via a relay device 42 or other devices or directly via a wireless network (wireless LAN). One or more relay devices 42 can be installed. The monitoring control target equipment 44 is connected to the equipment monitoring control device 43 and is monitored and controlled. The monitoring control target equipment 44 and the equipment monitoring control apparatus 43 may be connected one-to-one. However, as shown in FIG. 4, a plurality of monitoring control target equipments 44 are connected to one equipment monitoring control apparatus 43. You may make it do. These may be connected by a wireless network, but may be connected by a signal line as shown in FIG. The mobile terminal device 45 is connected to the center server 41 via the equipment monitoring control device 43 or the relay device 42 and is connected to the monitoring control target equipment 44 via a wireless network. Since the operation of each device or terminal is the same as that shown in Embodiments 1 and 2, the description thereof is omitted here.

  As described above, in the present embodiment, the key lock state information is taken into the center server 41 from the security system 46, and the mobile terminal device 45 is based on the taken key lock state information and the position information of the mobile terminal device 45. The device 45 is notified of information on the key locking state, and the key can be automatically unlocked immediately before the security guard carrying the mobile terminal device 45 passes, and the key can be automatically locked after passing. As a result, it is possible to efficiently perform security patrols.

Embodiment 5 FIG.
In the present embodiment, as shown in FIG. 5 in the first embodiment, as shown in the first to fourth embodiments, the position information of the mobile terminal device 55 can be obtained from a nearby fixed device or fixed terminal. Since the acquisition is possible, the center server 51 registers the information on the location of the store in the building, store information, business hours, etc. in the center server 51 in advance, so that the corresponding mobile terminal device 55 Realize distribution of store information in the vicinity of existing sections. As the mobile terminal device 55 moves, the section to be distributed is automatically updated. The store information distribution to the mobile terminal device 55 enables notification from the center server 51 and information transmission by a simple request operation from the mobile terminal device 55.

  FIG. 5 is a diagram showing the configuration of the building management system according to the present embodiment. In FIG. 5, the center server 51 is registered with location information of stores in the building, store information such as advertisements for products handled, information on events such as bargain sales and campaigns, and information such as business hours. Yes. Further, the center server 51 is connected to the equipment monitoring control device 53 via the relay device 52 and other devices, or directly via a wireless network (wireless LAN). One or more relay devices 52 can be installed. The monitoring control target facility 54 is connected to the facility monitoring control device 53 and is monitored and controlled. Although the monitoring control target equipment 54 and the equipment monitoring control device 53 may be connected one-to-one, a plurality of monitoring control target equipments 54 are connected to one equipment monitoring control device 53 as shown in FIG. You may make it do. These may be connected by a wireless network, but may be connected by a signal line as shown in FIG. In addition, the mobile terminal device 55 is connected to the center server 51 via the equipment monitoring control device 53 or the relay device 52 and is connected to the monitoring control target equipment 54 via a wireless network. Since the operation of each device or terminal is the same as that shown in Embodiments 1 and 2, the description thereof is omitted here.

  As described above, in the present embodiment, the center server 51 registers information such as store location information in the building, store information, and business hours in the center server 51 in advance. It is possible to distribute store information in the vicinity of the section where the mobile terminal device 55 exists to the terminal device 55.

Embodiment 6 FIG.
In this embodiment, an example in the case of using location information of a mobile terminal device in the building management system shown in the first embodiment will be described. FIG. 6 is a configuration diagram of the first embodiment. In the present embodiment, it is assumed that the center server 61 takes in the positional information of the mobile terminal device 65 and always monitors the information. At this time, when a person who has moved while carrying the mobile terminal device 65 in the building does not move for a certain period of time, the center server 61 issues an alarm to call attention. This configuration is effective when described below.

  As an effect, the building management system monitors equipment such as electricity, air conditioning, disaster prevention, crime prevention, and lighting, and regularly checks each equipment. When carrying out periodic inspections and moving while carrying the mobile terminal device 65, if an accident such as an electric shock occurs during the inspection, the inspection staff will not move from that location, and an alarm will be generated at the center server 61. In this way, early detection can be expected.

  For security purposes, if there is an accident while the security guard is conducting patrol monitoring, the security guard will not move from that location, so an alarm will be generated at the center server 61. And early detection can be hoped for.

  FIG. 6 is a diagram showing the configuration of the building management system according to the present embodiment. In FIG. 6, the center server 61 is connected to the equipment monitoring control device 63 via the relay device 62 and other devices or directly via a wireless network (wireless LAN). One or more relay devices 62 can be installed. In addition, the monitoring control target facility 64 (for example, in this embodiment, a lighting device or an air conditioner) is connected to the facility monitoring control device 63 and is monitored and controlled. Although the monitoring control target facility 64 and the facility monitoring control device 63 may be connected one-to-one, as shown in FIG. 6, a plurality of monitoring control target facilities 64 installed in one illumination / air-conditioning area are provided. Alternatively, it may be connected to one facility monitoring control device 63 installed in the same illumination / air conditioning area. These may be connected by a wireless network, but may be connected by a signal line as shown in FIG. The mobile terminal device 65 is connected to the center server 61 via the equipment monitoring control device 63 or the relay device 62 and also connected to the monitoring control target equipment 64 via a wireless network. Since the operation of each device or terminal is the same as that shown in Embodiment 1, the description thereof is omitted here.

  As described above, in the present embodiment, the center server 61 monitors the position information of each mobile terminal device 65, and if a mobile terminal device 65 that does not move for a predetermined time is found, an alarm is issued. If the mobile terminal device 65 is carried by an inspection worker who performs periodic inspections of equipment or a security guard who performs patrol monitoring, it will be early in the event of an accident. Can be discovered quickly, and prompt action can be taken.

It is the block diagram which showed the structure of the building management system which concerns on Embodiment 1 of this invention. It is the block diagram which showed the structure of the building management system which concerns on Embodiment 2 of this invention. It is the block diagram which showed the structure of the building management system which concerns on Embodiment 3 of this invention. It is the block diagram which showed the structure of the building management system which concerns on Embodiment 4 of this invention. It is the block diagram which showed the structure of the building management system which concerns on Embodiment 5 of this invention. It is the block diagram which showed the structure of the building management system which concerns on Embodiment 6 of this invention.

Explanation of symbols

  1, 21, 31, 41, 51, 61 Center server, 2, 22, 32, 42, 52, 62 Relay device, 3, 23, 33, 43, 53, 63 Equipment monitoring control device, 4, 24, 34, 44, 54, 64 Monitoring control target equipment, 5, 25, 35, 45, 55, 65 Mobile terminal device, 36 Automatic fire alarm equipment, 46 Security system.

Claims (6)

Equipment monitoring control means for obtaining monitoring information of equipment to be monitored and controlled installed in a building and controlling the equipment;
A center server that collects the monitoring information and transmits a control signal to the facility monitoring control means;
A mobile terminal device that communicates with the center server and displays the collected monitoring information, and a building management system comprising:
Each of the facility monitoring control means, the center server, and the mobile terminal device has a communication means for connecting them by a wireless network,
Each of the communication means
A detection unit for detecting the facility monitoring control means, the center server, and the mobile terminal device existing within a predetermined communication distance set in advance;
A wireless network is constructed between the other devices detected by the detection unit, and the information managed by the device is transmitted and received, and the communication unit relays the information managed by the other device.
The communication means provided in the mobile terminal device further includes:
Among other devices detected by the detection unit, a position confirmation unit that confirms the position of the own device from the position of at least one of the facility monitoring control means and the center server where the installation location is fixed,
A display unit that searches for the facility installed within a predetermined range centered on the position of the device itself confirmed by the position confirmation unit and displays the monitoring information of the facility with priority. Building management system characterized by that. Divide the building into one or more areas,
The facility monitoring control means is installed for each area,
The said mobile terminal device displays the monitoring information of the said installation installed in the area nearest to the position of the own apparatus confirmed by the said position confirmation part by the said display part. Building management system. Emergency notification means for transmitting an emergency signal to the center server in an emergency,
When the center server receives the emergency signal, the center server takes in the location information confirmed by the location confirmation unit of the mobile terminal device, generates evacuation route information based on the location information, and the mobile terminal The building management system according to claim 1, wherein the building management system transmits to a device. Locking / unlocking means for locking / unlocking keys installed in one or more places;
A security system for storing status information of locking / unlocking by the locking / unlocking means,
The center server captures the lock / unlock status signal from the security system, captures the location information confirmed by the location confirmation unit of the mobile terminal device, and is closest to the mobile terminal device. Search the place where the key is installed, send the lock / unlock status signal of the key to the mobile terminal device,
The mobile terminal device transmits a control signal for unlocking the location to the locking / unlocking means at the location based on the lock / unlock status signal, and for a predetermined time. The building management system according to any one of claims 1 to 3, wherein a control signal for performing locking is transmitted after elapse of time. The center server stores information on stores in the building, takes in location information confirmed by the location confirmation unit of the mobile terminal device, and is close to the mobile terminal device based on the location information The building management system according to any one of claims 1 to 4, wherein information on the store is searched and transmitted to the mobile terminal device. The center server takes in the position information confirmed by the position confirmation unit of the mobile terminal device, and if the position information does not change even after a predetermined time has passed, it is notified as an abnormality. The building management system according to any one of claims 1 to 5.

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