Building management system

Abstract

To provide a building management system in which burden of setting work on access rights for monitoring users at regional centers is reduced.SOLUTION: Central management systems 1-1 to 1-3 in each building store access level information that defines a management authority of a facility manager for the building, and transmit alarm information generated in the facility of the building to a regional center 2. The regional center 2 refers to setting information that associates a monitoring user with the facility manager of each building, specifies the facility manager of the building associated with the monitoring user, and acquires the access level information of the specified facility manager from the central management systems 1-1 to 1-3. The regional center 2 refers to the access level information when the alarm information is received, determines that the monitoring user has an alarm monitoring authority if the facility manager associated with the monitoring user has an alarm monitoring authority for the facility in the building that has transmitted the alarm information, and notifies the received alarm information to the monitoring user.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a building management system.

Background Art

[0002] The system portal of a wide-area center for collectively and integrally managing a plurality of buildings and the central management system of each building are connected via a network so that data stored in the central management system of each building can be referred to from the system portal (see, for example, Patent Document 1 and Patent Document 2). If access rights are set for each monitoring user of the wide-area center in the central management system of the building, the monitoring user of the wide-area center can access the central management system and view the data stored in the central management system.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] There may be a case where it is necessary to make a setting such that only an alarm related to an electrical facility and an operation screen related to the electrical facility among the alarms generated in each building are displayed on the monitoring screen viewed by the monitoring user of the wide-area center, and notifications and operation screens related to sanitary facilities, disaster prevention facilities, etc. that are not electrical facilities are not displayed. In the wide-area center, by setting access rights (non-display, display, operable) for each monitoring user and for each monitoring target in the buildings managed by the central management system of each building, such control of access rights for monitoring targets is possible. However, since there are multiple buildings managed by the wide-area center and the number of monitoring targets in each building ranges from several thousand to several tens of thousands, setting access rights for all monitoring targets would impose an extremely high workload on the task of setting access rights for the monitoring users at the wide-area center.

[0005] The present invention has been made to solve the above problems, and an object thereof is to provide a building management system capable of reducing the workload of setting access rights for monitoring users at the wide-area center.

Means for Solving the Problems

[0006] The building management system of the present invention is composed of a plurality of central management systems installed for each building to be managed and managing the facilities of the building, and a wide-area center connected to the plurality of central management systems via a network. The central management system of each building includes a first storage unit configured to store information on access levels defining the management authority of the facility managers of the building, and a first alarm notification unit configured to transmit alarm information generated in the facilities of the building to the wide-area center. The wide-area center includes a second storage unit configured to store setting information associating the monitoring users of the wide-area center with the facility managers of each building, a setting information acquisition unit configured to identify the facility manager of the building associated with the monitoring user by referring to the setting information and acquire the information on the access level of the identified facility manager from the plurality of central management systems, and a second alarm notification unit configured to, when receiving the alarm information, refer to the information on the access level acquired by the setting information acquisition unit, determine that the monitoring user has the alarm monitoring authority when the facility manager of the building where the alarm information is transmitted has the alarm monitoring authority for the facilities of the building, and notify the received alarm information to the monitoring user.

[0007] In addition, in one configuration example of the building management system of the present invention, when the second alarm notification unit receives the alarm information, it identifies the classification of the building and facilities where the alarm has occurred, and when the facility manager associated with the monitoring user has the alarm monitoring authority for the classification of the facilities in the identified building, it determines that the monitoring user has the alarm monitoring authority. In addition, in one configuration example of the building management system of the present invention, the setting information is information that associates the monitoring user of the wide-area center with the facility managers of each building that manage facilities of the same type as the facilities managed by the monitoring user.

[0008] The building management system of the present invention is composed of a plurality of central management systems installed for each building to be managed and managing the facilities of the building, and a wide-area center connected to the plurality of central management systems via a network. The central management system of each building includes a first storage unit configured to store information on the access level that defines the management authority of the facility manager of the building, and a first request processing unit configured to process requests regarding the facilities of the building from the wide-area center. The wide-area center includes a second storage unit configured to store setting information that associates the monitoring user of the wide-area center with the facility managers of each building, a setting information acquisition unit configured to identify the facility manager associated with the monitoring user with reference to the setting information and acquire information on the access level of the identified facility manager from the plurality of central management systems, and a second request processing unit configured to refer to the information on the access level acquired by the setting information acquisition unit when there is a request regarding the facilities of the building from the monitoring user, determine that the monitoring user has the management authority when the facility manager associated with the monitoring user has the management authority for the facilities of the building that is the request destination from the monitoring user, and transmit the request from the monitoring user to the central management system of the building that is the request destination.

[0009] Also, in one configuration example of the building management system of the present invention, when there is a request from the monitoring user regarding the facilities of the building, the second request processing unit identifies the classification of the building and facilities of the request destination, and when the facility manager associated with the monitoring user has management authority over the classification of the facilities of the identified building, it is determined that the monitoring user has management authority. Also, in one configuration example of the building management system of the present invention, the setting information is information that associates the monitoring user of the wide-area center with the facility managers of each building that manage facilities of the same type as the facilities managed by the monitoring user. Also, in one configuration example of the building management system of the present invention, the request from the monitoring user regarding the facilities of the building is a data viewing request, the first request processing unit transmits the data corresponding to the request received from the wide-area center to the wide-area center, and the second request processing unit displays the data received from the central management system on the monitoring screen. Also, in one configuration example of the building management system of the present invention, the request from the monitoring user regarding the facilities of the building is an operation request for the facilities, and the first request processing unit transmits the request received from the wide-area center to the controller that controls the facility of the request destination.

Advantages of the Invention

[0010] In the present invention, by using the information on the access levels set in the central management system of each building, it is not necessary for the monitoring users of the wide-area center to set management authority for each management target, so the workload of setting access authority for the monitoring users of the wide-area center can be reduced.

Brief Description of the Drawings

[0011]

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MODE FOR CARRYING OUT THE INVENTION

[0012] [Principle of the Invention] In a building central management system, access rights may be set for each equipment manager. For example, the monitoring target categories (such as air conditioning, electricity, sanitation, security, disaster prevention, etc.) of the equipment managers are divided, and access rights such as display / non-display and operation permission / non-permission of the monitoring target are set for each equipment manager.

[0013] When setting access rights for a monitoring user of a wide-area center to each equipment of each building, since there is already setting information of the equipment manager and the access rights of the equipment manager on the building central management system side, by using this setting information, it is possible to control the access rights of the monitoring user without re-setting. That is, in the wide-area center, a setting is made to associate the monitoring user of the wide-area center with the equipment managers of each building. When the monitoring user of the wide-area center activates the system portal, the system portal acquires the setting information of the equipment manager of the central management system associated with the monitoring user, and permits the monitoring user to access the data stored in the central management system within the range of the authority defined by the acquired setting information.

[0014] [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a building management system according to an embodiment of the present invention. The building management system is installed for each building such as a building to be managed, and includes a plurality of central management systems 1-1 to 1-3 that manage the facilities of the building, and a wide area center 2 that is connected to the central management systems 1-1 to 1-3 via a network 3 and manages a plurality of buildings. In the example of FIG. 1, the case where there are three central management systems 1-1 to 1-3 (three buildings to be managed) is described, but it goes without saying that the number is not limited to three.

[0015] The central management systems 1-1 to 1-3 each include a controller 10 that monitors and controls the facilities of the building, a monitoring terminal 11 connected to the controller 10 via a network 14 in the central management systems 1-1 to 1-3, a VPN router 12 having a VPN connection function with the wide area center 2, and an ONU (Optical Network Unit) 13 that converts an optical signal from the network 3 into an electrical signal and sends it to the VPN router 12, and converts an electrical signal from the VPN router 12 into an optical signal and sends it to the network 3.

[0016] The wide area center 2 includes a monitoring terminal 20, a VPN router 21 having a VPN connection function with the central management systems 1-1 to 1-3 and connected to the monitoring terminal 20 via a network 23 in the wide area center 2, and an ONU 22 that converts an optical signal from the network 3 into an electrical signal and sends it to the VPN router 21, and converts an electrical signal from the VPN router 21 into an optical signal and sends it to the network 3.

[0017] FIG. 2 is a block diagram showing the configuration of the monitoring terminal 11 of the central management systems 1-1 to 1-3, and FIG. 3 is a block diagram showing the configuration of the monitoring terminal 20 of the wide area center 2. The monitoring terminal 11 includes a CPU 110, a storage unit 111, and an interface unit (I / F) 112. A network 14 or the like is connected to the I / F 112. The CPU 110 executes processing according to a program stored in the storage unit 111, and functions as a setting unit 1100, an information transmission unit 1101, a data collection unit 1102, an alarm notification unit 1103, and an operation unit 1104. The information transmission unit 1101 and the operation unit 1104 constitute a first request processing unit 1105.

[0018] The monitoring terminal 20 includes a CPU 200, a storage unit 201, and an I / F 202. A network 23 or the like is connected to the I / F 202. The CPU 200 executes processing according to a program stored in the storage unit 201, and functions as a setting unit 2000, a setting information acquisition unit 2001, a display control unit 2002, an alarm notification unit 2003, and an operation unit 2004. The display control unit 2002 and the operation unit 2004 constitute a second request processing unit 2005.

[0019] The operation of the building management system according to this embodiment will be described below. When the facility managers are different for each facility in the building, there is a request to notify only the alarms of the facilities to be managed for each facility manager. The reason is that the facility manager cannot respond even if notified of an alarm outside the management target. Therefore, management authorities are set for each facility manager of the building in the monitoring terminals 11 of the central management systems 1-1 to 1-3 of each building.

[0020] Figs. 4(A) to 4(C) show an example of the access levels defining the management authorities of the electrical facility managers a to c of each building #1 to #3. In the examples of Figs. 4(A) to 4(C), in the central management systems 1-1 to 1-3 of each building #1 to #3, the management targets of each building #1 to #3 are classified by equipment type such as electricity, air conditioning, sanitation, lighting, and fire, and the access levels (operation allowed / forbidden, display allowed / forbidden) of the electrical facility managers a to c of each building #1 to #3 for each management target are defined.

[0021] Since the electrical equipment manager a of Building #1 has the "operable" status for the electrical equipment, for example, operations such as changing setting data can be performed on the electrical equipment of Building #1 via the controller 10. Also, since the electrical equipment manager a has the "displayable" status for the electrical equipment, the data of the electrical equipment of Building #1 can be viewed on the logged-in monitoring screen, and when an alarm occurs in the electrical equipment of Building #1, the alarm is notified on the monitoring screen. On the other hand, since the electrical equipment manager a has the "non-operable" and "non-displayable" status for air conditioning, sanitation, lighting, and fire, operations and viewing of data for these facilities cannot be performed, and alarms for these facilities are not notified. The above access level settings are performed by the setting unit 1100 of the monitoring terminal 11 according to the input from the equipment manager. The access level information is stored in the storage unit 111.

[0022] When there is a monitoring user in the wide-area center 2 who manages the electrical equipment of all buildings collectively, there is a request to notify only the monitoring user of the alarms related to the electrical equipment among the alarms that occurred in each building. If we try to set the access levels of all buildings individually for the monitoring user who manages the electrical equipment, the load for setting will increase as the number of buildings increases.

[0023] Therefore, in this embodiment, setting information that associates the monitoring user of the wide-area center 2 with the equipment managers of each building is registered in the monitoring terminal 20 of the wide-area center 2. An example of the association setting between the monitoring user A of the wide-area center 2 and the electrical equipment managers a to c of each building #1 to #3 is shown in FIG. 5. The equipment manager of each building associated with the monitoring user is preferably the manager of equipment of the same type as the equipment managed by the monitoring user. For example, when the monitoring user of the wide-area center 2 is an electrical equipment manager, it is preferable that the equipment managers of each building associated with the monitoring user are also electrical equipment managers or managers equivalent to electrical equipment management. Such an association setting is performed by the setting unit 2000 of the monitoring terminal 20 according to the input from the monitoring user. The association setting may be configured to automatically associate an administrator who manages the same type of facility as the facility managed by the monitoring user. For example, when the monitoring user of the wide - area center 2 is an electrical facility administrator, the electrical facility administrators of each building or the administrators corresponding to the electrical facility management may be automatically associated. The association information includes the information of the monitoring user and the facilities managed by the monitoring user, and the information of the facility administrators of each building and the facilities managed by each facility administrator. The association setting information is stored in the storage unit 201.

[0024] Figures 6 and 7 are flowcharts for explaining the operation of the building management system of this embodiment. First, the monitoring user A of the wide - area center 2 logs in to the system portal provided by the CPU 200 of the monitoring terminal 20.

[0025] When the monitoring user A logs in to the system portal, the setting information acquisition unit 2001 of the monitoring terminal 20 refers to the association setting information (Figure 5) stored in the storage unit 201, acquires the information of the facility administrators of the buildings associated with the monitoring user A, and identifies the facility administrators associated with the monitoring user A (step S100 in Figure 6).

[0026] Next, the setting information acquisition unit 2001 requests the central management systems 1 - 1 to 1 - 3 of each building #1 to #3 for the information on the access levels of the facility administrators identified in step S100 (step S101 in Figure 6).

[0027] The information transmission units 1101 of the monitoring terminals 11 of each building #1 to #3 that have received the request from the monitoring terminal 20 via the network 3 acquire the information on the access levels of the requested facility administrators from the storage unit 111 and transmit it to the monitoring terminal 20 (step S102 in Figure 6).

[0028] The setting information acquisition unit 2001 of the monitoring terminal 20 receives the access level information transmitted from the monitoring terminals 11 of each of the buildings #1 to #3 and stores it in the storage unit 201 (step S103 in FIG. 6). In this way, the setting information acquisition unit 2001 can acquire information as shown in FIG. 8 as the access level information of the facility managers a to c of the buildings #1 to #3 associated with the monitoring user A.

[0029] Next, when there is a data viewing request from the monitoring user A (YES in step S104 in FIG. 6), the display control unit 2002 of the monitoring terminal 20 refers to the access level information acquired by the setting information acquisition unit 2001 and determines whether the monitoring user A has the viewing right to the requested data (step S105 in FIG. 6). Specifically, the display control unit 2002 specifies the classification of the facility of the request destination, and among the facility managers associated with the monitoring user A, when the facility manager of the building of the request destination from the monitoring user A is the facility manager of the specified classification and this facility manager has the data viewing right, it is determined that the monitoring user A has the data viewing right.

[0030] For example, when the monitoring user A requests to view the data of the electrical equipment in building #1, the display control unit 2002 refers to the information as shown in FIG. 8 and confirms that the management authority of the electrical equipment of the facility manager a of building #1 associated with the monitoring user A is "operable" and "displayable". Thereby, the display control unit 2002 determines that the monitoring user A corresponding to the facility manager a has the right to view the data of the electrical equipment in building #1.

[0031] Also, for example, when the monitoring user A requests to view the data of the air conditioning equipment in building #1, the display control unit 2002 confirms that the management authority of the air conditioning equipment of the facility manager a of building #1 associated with the monitoring user A is "not operable" and "not displayable". Thereby, the display control unit 2002 determines that the monitoring user A corresponding to the facility manager a does not have the right to view the data of the air conditioning equipment in building #1. When the display control unit 2002 determines that the monitoring user A does not have the data viewing right, it displays on the monitoring screen of the monitoring terminal 20 that the data viewing right is not available (step S106 in FIG. 6).

[0032] When the display control unit 2002 determines that the monitoring user A has the data viewing authority (YES in step S105), it requests the central management systems 1-1 to 1-3 of buildings #1 to #3 that hold the data requested by the monitoring user A to transmit the data (step S107 in FIG. 6).

[0033] The data collection unit 1102 of the monitoring terminal 11 for each of the buildings #1 to #3 constantly collects data of the equipment to be managed from the controller 10 in the same building. The data collected by the data collection unit 1102 is stored in the storage unit 111.

[0034] The information transmission unit 1101 of the monitoring terminal 11 for each of the buildings #1 to #3 that has received a request from the monitoring terminal 20 of the wide-area center 2 via the network 3 acquires the requested data from the storage unit 111 and transmits it to the monitoring terminal 20 (step S108 in FIG. 6).

[0035] The display control unit 2002 of the monitoring terminal 20 displays the data transmitted from the monitoring terminals 11 of the buildings #1 to #3 on the monitoring screen of the monitoring terminal 20 (step S109 in FIG. 6). In this way, the monitoring user A can view the desired data on the monitoring screen.

[0036] Next, the alarm notification unit 1103 of the monitoring terminal 11 for each of the buildings #1 to #3 receives alarm information from the controller 10 in the same building (step S110 in FIG. 7) and transmits the received alarm information to the monitoring terminal 20 (step S111 in FIG. 7).

[0037] When the alarm notification unit 2003 of the monitoring terminal 20 receives alarm information from the monitoring terminals 11 of the buildings #1 to #3 via the network 3 (step S112 in FIG. 7), based on the received alarm information, it identifies the building where the alarm occurred and the classification (electricity, air conditioning, sanitation, security, disaster prevention) of the equipment where the alarm occurred (step S113 in FIG. 7).

[0038] The alarm notification unit 2003 refers to the access level information acquired by the setting information acquisition unit 2001 within the same terminal to determine whether the monitoring user A has the alarm monitoring authority (step S114 in FIG. 7). Specifically, the alarm notification unit 2003 determines that the monitoring user A has the alarm monitoring authority when among the facility managers associated with the monitoring user A, the facility manager of the building where the alarm information is sent is the facility manager of the classification specified in step S113 and this facility manager has the alarm monitoring authority.

[0039] For example, when receiving alarm information from the monitoring terminal 11 of building #1, assume that the facility where the alarm occurred is an electrical facility. The alarm notification unit 2003 refers to the information as shown in FIG. 8 and confirms that the management authority of the electrical facilities of the facility manager a of building #1 associated with the monitoring user A is "operable" and "displayable". Thereby, the alarm notification unit 2003 determines that the monitoring user A corresponding to the facility manager a has the alarm monitoring authority for the electrical facilities of building #1.

[0040] Also, when receiving alarm information from the monitoring terminal 11 of building #1 and the facility where the alarm occurred is an air conditioning facility, the alarm notification unit 2003 confirms that the management authority of the air conditioning facilities of the facility manager a of building #1 associated with the monitoring user A is "not operable" and "not displayable". Thereby, the alarm notification unit 2003 determines that the monitoring user A corresponding to the facility manager a does not have the alarm monitoring authority for the air conditioning facilities of building #1.

[0041] When the alarm notification unit 2003 determines that the monitoring user A has the alarm monitoring authority (YES in step S114), it displays the received alarm information on the monitoring screen of the monitoring terminal 20 (step S115 in FIG. 7). In this way, the monitoring user A can recognize the occurrence of an alarm for the facilities under their management. When the alarm notification unit 2003 determines that the monitoring user A does not have the alarm monitoring authority (NO in step S114), it does not display the alarm information (step S116 in FIG. 7).

[0042] Next, when there is an operation request for management from the monitoring user A (YES in step S117 of FIG. 7), the operation unit 2004 of the monitoring terminal 20 refers to the access level information acquired by the setting information acquisition unit 2001 and determines whether the requested operation authority for the management target exists for the monitoring user A (step S118 of FIG. 7). Specifically, the operation unit 2004 identifies the classification of the facility to which the request destination belongs, and among the facility managers associated with the monitoring user A, when the facility manager of the building that is the request destination from the monitoring user A is the facility manager of the identified classification and this facility manager has the operation authority, it is determined that the monitoring user A has the operation authority.

[0043] For example, when the monitoring user A requests to change the setting data of the electrical equipment in Building #1, the operation unit 2004 refers to the information as shown in FIG. 8 and confirms that the management authority of the electrical equipment of the facility manager a of Building #1 associated with the monitoring user A is "operable" and "displayable". Thereby, the operation unit 2004 determines that the monitoring user A corresponding to the facility manager a has the operation authority for the electrical equipment in Building #1.

[0044] Also, for example, when the monitoring user A requests to change the setting data of the air conditioning equipment in Building #1, the operation unit 2004 confirms that the management authority of the air conditioning equipment of the facility manager a of Building #1 associated with the monitoring user A is "not operable" and "not displayable". Thereby, the operation unit 2004 determines that the monitoring user A corresponding to the facility manager a does not have the operation authority for the air conditioning equipment in Building #1. When the operation unit 2004 determines that the monitoring user A does not have the operation authority, it displays on the monitoring screen of the monitoring terminal 20 that there is no operation authority (step S119 of FIG. 7).

[0045] When the operation unit 2004 determines that the monitoring user A has the operation authority (YES in step S118), it transmits the operation request from the monitoring user A (for example, setting data change) to the central management systems 1-1 to 1-3 of the target buildings #1 to #3 (step S120 of FIG. 7).

[0046] Upon receiving a request from the monitoring terminal 20 at the wide - area center 2 via the network 3, the operation unit 1104 of each of the monitoring terminals 11 in buildings #1 to #3 transmits the received request to the controller 10 within the same building (step S121 in FIG. 7). The controller 10 operates the target facility according to the received request.

[0047] The building management system executes the processes of steps S104 to S122 above until the monitoring user A logs out from the system portal.

[0048] As described above, in this embodiment, by using the information on the access levels set in the central management systems 1 - 1 to 1 - 3 of each of the buildings #1 to #3, it is no longer necessary for the monitoring user at the wide - area center to set access rights for each management target. Thus, the workload of setting access rights for the monitoring user at the wide - area center can be reduced. Also, in this embodiment, it is no longer necessary for the monitoring user at the wide - area center to set whether to display an alarm or not for each management target. Therefore, the workload of setting access rights for the monitoring user at the wide - area center can be reduced.

Industrial Applicability

[0049] The present invention can be applied to the technology of remotely managing buildings.

Explanation of Reference Numerals

[0050] 1 - 1 to 1 - 3... Central management systems, 2... Wide - area center, 3, 14... Networks, 10... Controllers, 11, 20... Monitoring terminals, 12, 21... VPN routers, 13, 22... ONUs, 110, 200... CPUs, 111, 201... Storage units, 112, 202... Interface units, 1100, 2000... Setting units, 1101... Information transmission units, 1102... Data collection units, 1103, 2003... Alarm notification units, 1104, 2004... Operation units, 1105... First request processing unit, 2001... Setting information acquisition unit, 2002... Display control unit, 2005... Second request processing unit.

Claims

1. A plurality of central management systems installed for each building to be managed and managing the facilities of the building, and A wide-area center connected to the plurality of central management systems via a network, The central management system of each building A first storage unit configured to store information on an access level that defines the management authority of the facility manager of the building, A first alarm notification unit configured to transmit alarm information generated in the facilities of the building to the wide-area center, The wide-area center A second storage unit configured to store setting information that associates the monitoring users of the wide-area center with the facility managers of each building, A setting information acquisition unit configured to refer to the setting information, identify the facility manager of the building associated with the monitoring user, and acquire information on the access level of the identified facility manager from the plurality of central management systems, When receiving the alarm information, referring to the information on the access level acquired by the setting information acquisition unit, and when the facility manager associated with the monitoring user has the alarm monitoring authority for the facilities of the building where the alarm information was transmitted, determining that the monitoring user has the alarm monitoring authority, and a building management system comprising a second alarm notification unit configured to notify the received alarm information to the monitoring user.

2. In the building management system according to Claim 1, When receiving the alarm information, the second alarm notification unit identifies the classification of the building and facilities where the alarm occurred, and when the facility manager associated with the monitoring user has the alarm monitoring authority for the classification of the facilities of the identified building, determines that the monitoring user has the alarm monitoring authority. A building management system characterized by this.

3. In the building management system according to Claim 1 or 2, The setting information is information that associates the monitoring users of the wide-area center with the facility managers of each building who manage facilities of the same type as the facilities managed by the monitoring users. A building management system characterized by this.

4. A plurality of central management systems installed for each building to be managed and managing the facilities of the building, and A wide-area center connected to the plurality of central management systems via a network, The central management system of each building A first storage unit configured to store information on an access level that defines the management authority of the facility manager of the building, A first request processing unit configured to process requests regarding the facilities of the building from the wide-area center, The wide-area center A second storage unit configured to store setting information for associating the monitoring users of the wide-area center with the facility managers of each building; A setting information acquisition unit configured to refer to the setting information, identify the facility manager of the building associated with the monitoring user, and acquire information on the access level of the identified facility manager from the plurality of central management systems; When there is a request regarding the facilities of a building from the monitoring user, referring to the access level information acquired by the setting information acquisition unit, and determining that the monitoring user has management authority when the facility manager associated with the monitoring user has management authority over the facilities of the building requested by the monitoring user, and a second request processing unit configured to transmit the request from the monitoring user to the central management system of the requested building. A building management system characterized by comprising

5. In the building management system according to claim 4, When there is a request regarding the facilities of a building from the monitoring user, the second request processing unit identifies the classification of the requested building and facilities, and determines that the monitoring user has management authority when the facility manager associated with the monitoring user has management authority over the classification of the facilities of the identified building. A building management system characterized by

6. In the building management system according to claim 4 or 5, The setting information is information for associating the monitoring users of the wide-area center with the facility managers of each building who manage facilities of the same type as the facilities managed by the monitoring users. A building management system characterized by

7. In the building management system according to claim 4 or 5, The request regarding the facilities of a building from the monitoring user is a data viewing request, The first request processing unit transmits the data corresponding to the request received from the wide-area center to the wide-area center, The second request processing unit displays the data received from the central management system on a monitoring screen. A building management system characterized by

8. In the building management system according to claim 4 or 5, The request regarding the facilities of a building from the monitoring user is an operation request for the facilities, The building management system is characterized in that the first request processing unit transmits a request received from the wide-area center to a controller that controls equipment at the request destination.

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