Building management system

Abstract

The invention relates to a building management system, which can reduce the load of the operation of setting access authority for a monitoring user of a wide area center. The central management system of each building stores information defining the access level of the management authority of the equipment manager of the building, and transmits alarm information generated in the equipment of the building to the wide area center. The wide area center refers to setting information that associates the monitoring user with the equipment manager of each building, specifies the equipment manager of the building associated with the monitoring user, and acquires information on the access level of the specified equipment manager from the central management system. When the wide-area center receives the alarm information, the wide-area center refers to the information of the access level, and when an alarm monitoring authority is provided for equipment of a building having a transmission source of the alarm information for an equipment manager associated with the monitoring user, the wide-area center determines that the monitoring user has the alarm monitoring authority. And a monitoring user is informed of the received alarm information.

Description

Technical Field

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

[0002] The system portal of the wide area center that manages a plurality of buildings together is connected to the central management system of each building via a network, and data stored in the central management system of each building can be referenced from the system portal (see, for example, Patent Documents 1 and 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.

[0003] [Prior art literature]

[0004] [Patent Document]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2005-084730

[0006] [Patent Document 2] Japanese Patent Application Laid-Open No. 05-083761 Summary of the invention

[0007] [Problems to be solved by the invention]

[0008] Sometimes it is necessary to make the following settings: on the monitoring screen viewed by monitoring users in the wide area center, for example, only alarms related to electrical equipment and operation screens related to electrical equipment among the alarms generated in each building are displayed, while notifications or operation screens related to sanitary equipment or disaster prevention equipment that are not electrical equipment are not displayed.

[0009] In the wide area center, access rights (non-display, display, operable) are set for each monitoring user and each monitoring object in the building managed by the central management system of each building, thereby enabling access right control of such monitoring objects.

[0010] However, there are many buildings managed by the wide area center, and the number of monitored objects in each building ranges from thousands to tens of thousands. Therefore, if access rights are set for all monitored objects, there is a problem that the load of setting access rights for monitoring users in the wide area center becomes very high.

[0011] The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a building management system that can reduce the load of the work of setting access authority for monitoring users in a wide area center.

[0012] [Technical means to solve the problem]

[0013] The building management system of the present invention includes: a plurality of central management systems, which are provided for each building as a management object and manage the equipment of the building; and a wide area center, which is connected to the plurality of central management systems via a network, wherein the central management system of each building includes: a first storage unit configured to store information on access levels defining management rights of equipment managers of the building; and a first alarm notification unit configured to send alarm information generated in the equipment of the building to the wide area center, wherein the wide area center includes: a second storage unit configured to store setting information for associating a monitoring user of the wide area center with equipment managers of each building; a setting information acquisition unit configured to refer to the setting information, determine the equipment manager of the building associated with the monitoring user, and acquire information on the access level of the determined equipment manager from the plurality of central management systems; and a second alarm notification unit configured to refer to the access level information acquired by the setting information acquisition unit when receiving the alarm information, and when the equipment manager associated with the monitoring user has the alarm monitoring right of the equipment of the building from which the alarm information is sent, determine that the monitoring user has the alarm monitoring right, and notify the monitoring user of the received alarm information.

[0014] In addition, in a structural example of the building management system of the present invention, when the second alarm notification unit receives the alarm information, it determines the classification of the building and equipment that generated the alarm, and when the equipment manager associated with the monitoring user has alarm monitoring authority for the classification of equipment in the determined building, it is determined that the monitoring user has alarm monitoring authority.

[0015] 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 equipment manager of each building, and the equipment manager of each building manages the same type of equipment as that managed by the monitoring user.

[0016] The building management system of the present invention comprises: a plurality of central management systems, which are set up for each building as a management object and manage the equipment of the building; and a wide area center, which is connected to the plurality of central management systems via a network, and the central management system of each building comprises: a first storage unit, which is configured to store information on access levels defining the management authority of the equipment manager of the building; and a first request processing unit, which is configured to process requests related to the equipment of the building from the wide area center, and the wide area center comprises: a second storage unit, which is configured to store setting information that establishes an association between the monitoring user of the wide area center and the equipment manager of each building; and a setting information acquisition unit, The device is configured to determine the equipment manager of the building associated with the monitoring user with reference to the setting information, and obtain the access level information of the determined equipment manager from the multiple central management systems; and a second request processing unit is configured to, when there is a request related to the equipment of the building from the monitoring user, refer to the access level information obtained by the setting information acquisition unit, and when the equipment manager associated with the monitoring user has the management authority for the equipment from the building of the monitoring user's request destination, determine that the monitoring user has the management authority, and send the request from the monitoring user to the central management system of the building of the request destination.

[0017] In addition, in a structural example of the building management system of the present invention, when the monitoring user has a request related to the equipment of the building, the second request processing unit determines the building and equipment classification of the request destination, and when the equipment manager associated with the monitoring user has management authority over the classification of equipment of the determined building, it is determined that the monitoring user has management authority.

[0018] 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 equipment manager of each building, and the equipment manager of each building manages the same type of equipment as that managed by the monitoring user.

[0019] In addition, in one structural example of the building management system of the present invention, the request from the monitoring user related to the equipment of the building is a request to view data, the first request processing unit sends 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.

[0020] In one configuration example of the building management system of the present invention, the request from the monitoring user regarding equipment in the building is an operation request for the equipment, and the first request processing unit sends the request received from the wide area center to a controller that controls the equipment at the request destination.

[0021] [Effects of the Invention]

[0022] In the present invention, by utilizing the access level information set in the central management system of each building, the monitoring user in the wide area center does not need to set management authority for each management object, thereby reducing the workload of setting access authority for the monitoring user in the wide area center. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a block diagram showing the structure of a building management system according to an embodiment of the present invention.

[0024] Figure 2 This is a block diagram showing the configuration of a monitoring terminal of a central management system according to an embodiment of the present invention.

[0025] Figure 3 This is a block diagram showing the structure of a monitoring terminal in a wide area center according to an embodiment of the present invention.

[0026] Figure 4 (A)~ Figure 4 (C) is a diagram showing an example of access levels defining the authority of an electric equipment manager of a building.

[0027] Figure 5 This is a diagram showing an example of association settings between a monitoring user in a wide area center and an electric equipment manager in each building.

[0028] Figure 6 This is a flowchart illustrating the operation of the building management system according to the embodiment of the present invention.

[0029] Figure 7 This is a flowchart illustrating the operation of the building management system according to the embodiment of the present invention.

[0030] Figure 8 This is a diagram showing an example of information on the access level of a facility manager of a building acquired by a monitoring terminal in a wide area center.

[0031] [Explanation of Symbols]

[0032] 1-1~1-3: Central Management System

[0033] 2: Wide Area Center

[0034] 3.14: Network

[0035] 10: Controller

[0036] 11, 20: Monitoring terminal

[0037] 12.21: VPN Router

[0038] 13, 22: ONU

[0039] 110, 200: CPU

[0040] 111, 201: Storage

[0041] 112, 202: Interface

[0042] 1100, 2000: Setting department

[0043] 1101: Information sending department

[0044] 1102: Data Collection Department

[0045] 1103, 2003: Alarm Notification Department

[0046] 1104, 2004: Operation Department

[0047] 1105: First request processing unit

[0048] 2001: Established the Information Acquisition Department

[0049] 2002: Display Control Department

[0050] 2005: Second Request Processing Department DETAILED DESCRIPTION

[0051] [Principle of the invention]

[0052] In the central management system of a building, access rights are sometimes set for each equipment manager. For example, the equipment manager's monitoring objects are divided into zones (air conditioning, electricity, sanitation, anti-theft, disaster prevention, etc.), and access rights such as display / non-display, operable / non-operable, etc. of the monitored objects are set for each equipment manager.

[0053] When setting the access rights of each device in each building for the monitoring user in the wide area center, the central management system of the building already has the setting information of the device manager and the access rights of the device manager. Therefore, by using the setting information, the access rights of the monitoring user can be controlled without resetting. That is, the setting of associating the monitoring user in the wide area center with the device manager of each building is performed in the wide area center. If the monitoring user in the wide area center starts the system portal, the system portal obtains the setting information of the device manager of the central management system associated with the monitoring user, and the monitoring user is allowed to access the data stored in the central management system within the scope of the authority defined by the obtained setting information.

[0054] [Example]

[0055] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Figure 1 This is a block diagram showing the structure of a building management system according to an embodiment of the present invention. The building management system is provided for each building or other structure to be managed, and includes a plurality of central management systems 1-1 to 1-3 for managing equipment in the building, and a wide area center 2 connected to the central management systems 1-1 to 1-3 via a network 3 and managing the plurality of buildings. Figure 1 In the example of FIG. 1 , there are three central management systems 1 - 1 to 1 - 3 (three buildings to be managed), but the number is of course not limited to three.

[0056] The central management system 1-1 to the central management system 1-3 respectively include: a controller 10 for monitoring and controlling the equipment in the building; a monitoring terminal 11, which is connected to the controller 10 via a network 14 within the central management system 1-1 to the central management system 1-3; a virtual private network (VPN) router 12, which has a VPN connection function with the wide area center 2; and an optical network unit (ONU) 13, which converts optical signals from the network 3 into electrical signals and sends them to the VPN router 12, and converts electrical signals from the VPN router 12 into optical signals and sends them to the network 3.

[0057] The wide area center 2 includes: a monitoring terminal 20; a VPN router 21, which has a VPN connection function with the central management system 1-1 to the central management system 1-3 and is connected to the monitoring terminal 20 via the network 23 in the wide area center 2; and an ONU 22, which 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.

[0058] Figure 2 This is a block diagram showing the structure of the monitoring terminal 11 of the central management system 1-1 to the central management system 1-3. Figure 3 It is a block diagram showing the structure of the monitoring terminal 20 of the wide area center 2.

[0059] The monitoring terminal 11 includes a central processing unit (CPU) 110, a storage unit 111, and an interface (I / F) 112. The network 14 and the like are connected to the I / F 112. The CPU 110 executes processing according to the 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.

[0060] The monitoring terminal 20 includes a CPU 200, a storage unit 201, and an I / F 202. The I / F 202 is connected to a network 23 or the like. 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.

[0061] The operation of the building management system of this embodiment is described below. When the equipment manager is different for each equipment in the building, it is required that each equipment manager wishes to be notified of only the alarm of the equipment that is the management target. The reason is that even if the alarm outside the management target is notified, the equipment manager cannot respond. Therefore, in the monitoring terminal 11 of the central management system 1-1 to the central management system 1-3 of each building, the management authority is set for each equipment manager of the building.

[0062] Figure 4 (A)~ Figure 4 (C) shows an example of the access level that defines the management authority of the electrical equipment manager a to the electrical equipment manager c of each building #1 to #3. Figure 4 (A)~ Figure 4 In the example of (C), in the central management systems 1-1 to 1-3 of each building #1 to #3, the management objects of building #1 to building #3 are classified according to the type of equipment such as electrical, air-conditioning, sanitation, lighting, and fire, and the access level (operable / inoperable, displayable / not displayable) of each management object by the electrical equipment manager a to the electrical equipment manager c of each building #1 to #3 is defined.

[0063] The electrical equipment manager a of building #1 is "operable" for the electrical equipment, and can perform operations such as changing the setting data of the electrical equipment of building #1 via the controller 10. In addition, the electrical equipment manager a is "displayable" for the electrical equipment, and can view the data of the electrical equipment of building #1 on the logged-in monitoring screen, and when an alarm of the electrical equipment of building #1 occurs, the alarm is notified on the monitoring screen. On the other hand, the electrical equipment manager a is "unoperable" and "undisplayable" for air conditioning, sanitation, lighting, and fire, and cannot operate these equipment or view the data, and the alarm of these equipment is not notified.

[0064] The above-described access level settings are performed by the setting unit 1100 of the monitoring terminal 11 according to the input from the device manager. The access level information is stored in the storage unit 111 .

[0065] When there is a monitoring user who centrally manages the electrical equipment of all buildings in the wide area center 2, there is a demand to notify the monitoring user only of the alarms related to the electrical equipment among the alarms generated in each building. For the monitoring user who manages the electrical equipment, if the access level of all buildings is to be set individually, the more buildings there are, the greater the load required for setting.

[0066] Therefore, in this embodiment, setting information for associating the monitoring user of the wide area center 2 with the equipment manager of each building is registered in the monitoring terminal 20 of the wide area center 2. An example of associating the monitoring user A of the wide area center 2 with the electrical equipment managers a to c of the buildings #1 to #3 is shown in FIG. Figure 5 .

[0067] The equipment manager of each building associated with the monitoring user is preferably a manager of the same type of equipment 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 preferred that the equipment manager of each building associated with the monitoring user is also an electrical equipment manager or a manager equivalent to electrical equipment management.

[0068] This 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 can automatically establish an association with the manager who manages the same type of equipment 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, the electrical equipment manager of each building or the manager equivalent to the electrical equipment manager can be automatically associated. The association information includes the information of the monitoring user and the equipment managed by the monitoring user, and the information of the equipment manager of each building and the equipment managed by each equipment manager. The association setting information is stored in the storage unit 201.

[0069] Figure 6 , Figure 7 1 is a flowchart for explaining the operation of the building management system of this embodiment. First, a monitoring user A of the wide area center 2 logs into the system portal provided by the CPU 200 of the monitoring terminal 20 .

[0070] After the monitoring user A logs in to the system portal, the setting information acquisition unit 2001 of the monitoring terminal 20 refers to the related setting information ( Figure 5 ), obtain the information of the equipment manager of the building associated with the monitoring user A, and determine the equipment manager associated with the monitoring user A ( Figure 6 Step S100).

[0071] Next, the setting information acquisition unit 2001 requests the central management systems 1-1 to 1-3 of the buildings #1 to #3 to obtain the information on the access level of the equipment manager determined in step S100 ( Figure 6 Step S101).

[0072] The information transmission unit 1101 of the monitoring terminal 11 of each building #1 to #3 that has received the request from the monitoring terminal 20 via the network 3 obtains the information of the access level of the requested facility manager from the storage unit 111 and transmits it to the monitoring terminal 20 ( Figure 6 Step S102).

[0073] The setting information acquisition unit 2001 of the monitoring terminal 20 receives the access level information transmitted from the monitoring terminals 11 of the buildings #1 to #3 and stores it in the storage unit 201 ( Figure 6 Step S103). In this way, the setting information acquisition unit 2001 can acquire Figure 8 The information shown is information on the access levels of the facility managers a to c of the buildings #1 to #3 associated with the monitoring user A. FIG.

[0074] Next, when a data browsing request is received from monitoring user A (in Figure 6 In step S104, if it is YES, the access level information acquired by the setting information acquisition unit 2001 is referred to to determine whether the monitoring user A has the required data viewing authority ( Figure 6 Step S105). Specifically, the display control unit 2002 determines the classification of the equipment at the requested destination, and when the equipment manager from the building at the requested destination of the monitoring user A among the equipment managers associated with the monitoring user A is the equipment manager of the determined classification and the equipment manager has the data reading authority, it is determined that the monitoring user A has the data reading authority.

[0075] For example, when monitoring user A requests to view data of electrical equipment in building #1, the display control unit 2002 refers to Figure 8 The information shown confirms that the management authority of the electrical equipment of the equipment manager a of building #1 associated with the monitoring user A is "operable" and "displayable". Therefore, the display control unit 2002 determines that the monitoring user A corresponding to the equipment manager a has the data reading authority of the electrical equipment of building #1.

[0076] In addition, when monitoring user A requests to view the data of the air conditioning equipment of building #1, for example, the display control unit 2002 confirms that the management authority of the air conditioning equipment of equipment manager a of building #1 associated with monitoring user A is "inoperable" and "indisplayable". As a result, the display control unit 2002 determines that monitoring user A corresponding to equipment manager a does not have the data viewing authority of the air conditioning equipment of building #1. When the display control unit 2002 determines that monitoring user A does not have the data viewing authority, it displays the fact that there is no data viewing authority on the monitoring screen of the monitoring terminal 20 ( Figure 6 Step S106).

[0077] 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 send the data ( Figure 6 Step S107).

[0078] The data collection unit 1102 of the monitoring terminal 11 of 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.

[0079] The information transmission unit 1101 of the monitoring terminal 11 of each building #1 to #3 that has received the 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 ( Figure 6 Step S108).

[0080] The display control unit 2002 of the monitoring terminal 20 displays the data sent from the monitoring terminals 11 of each building #1 to #3 on the monitoring screen of the monitoring terminal 20 ( Figure 6 Step S109) In this way, monitoring user A can browse desired data on the monitoring screen.

[0081] Next, the alarm notification unit 1103 of the monitoring terminal 11 of each building #1 to #3 receives the alarm information ( Figure 7 Step S110), the received alarm information is sent to the monitoring terminal 20 ( Figure 7 Step S111).

[0082] After receiving the alarm information from the monitoring terminals 11 of the buildings #1 to #3 via the network 3 ( Figure 7 Step S112), based on the received alarm information, determine the building where the alarm occurred and the classification of the equipment that generated the alarm (electrical, air conditioning, sanitation, anti-theft, disaster prevention) ( Figure 7 Step S113).

[0083] The alarm notification unit 2003 refers to the access level information acquired by the setting information acquisition unit 2001 in the same terminal, and determines whether the monitoring user A has the alarm monitoring authority ( Figure 7 Step S114). Specifically, the alarm notification unit 2003 determines that the monitoring user A has the alarm monitoring authority when the equipment manager of the building from which the alarm information is sent among the equipment managers associated with the monitoring user A is an equipment manager of the classification determined in step S113 and the equipment manager has the alarm monitoring authority.

[0084] For example, when alarm information is received from the monitoring terminal 11 of the building #1, the device generating the alarm is an electrical device. Figure 8 The information shown confirms that the management authority of the electrical equipment of the equipment manager a of building #1 associated with the monitoring user A is "operable" and "displayable". Therefore, the alarm notification unit 2003 determines that the monitoring user A corresponding to the equipment manager a has the alarm monitoring authority of the electrical equipment of building #1.

[0085] Furthermore, when receiving alarm information from the monitoring terminal 11 of building #1, if the device generating the alarm is an air conditioner, the alarm notification unit 2003 confirms that the management authority of the air conditioner of the device manager a of building #1 associated with the monitoring user A is "inoperable" and "indisplayable". As a result, the alarm notification unit 2003 determines that the monitoring user A corresponding to the device manager a does not have the alarm monitoring authority for the air conditioner of building #1.

[0086] 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 ( Figure 7 Step S115). In this way, the monitoring user A can recognize the alarm of the device to be managed. If the alarm notification unit 2003 determines that the monitoring user A does not have the alarm monitoring authority (NO in step S114), the alarm information is not displayed. Figure 7 Step S116).

[0087] Next, when the monitoring user A has an operation request for the management object (in Figure 7 (Yes in step S117), the access level information acquired by the setting information acquisition unit 2001 is referred to to determine whether the monitoring user A has the required operation authority for the management object ( Figure 7 Step S118). Specifically, the operation unit 2004 determines the classification of the equipment at the requested destination, and when the equipment manager from the building at the requested destination of the monitoring user A among the equipment managers associated with the monitoring user A is the equipment manager of the determined classification and the equipment manager has the operation authority, it is determined that the monitoring user A has the operation authority.

[0088] For example, when monitoring user A requests to change the setting data of the electrical equipment of building #1, the operation unit 2004 refers to Figure 8 The information shown confirms that the management authority of the electrical equipment of the equipment manager a of building #1 associated with the monitoring user A is "operable" and "displayable". Therefore, the operation unit 2004 determines that the monitoring user A corresponding to the equipment manager a has the operation authority of the electrical equipment of the building #1.

[0089] In addition, when monitoring user A requests to change the setting data of the air conditioning equipment of building #1, for example, the operation unit 2004 confirms that the management authority of the air conditioning equipment of equipment manager a of building #1 associated with monitoring user A is "inoperable" or "indisplayable". As a result, the operation unit 2004 determines that monitoring user A corresponding to equipment manager a does not have the operation authority of the air conditioning equipment of building #1. When the operation unit 2004 determines that monitoring user A does not have the operation authority, it displays the fact that there is no operation authority on the monitoring screen of the monitoring terminal 20 ( Figure 7 Step S119).

[0090] When the operation unit 2004 determines that the monitoring user A has the operation authority (Yes in step S118), the operation request (e.g., setting data change) from the monitoring user A is sent to the central management systems 1-1 to 1-3 of the target buildings #1 to #3. Figure 7 Step S120).

[0091] The operation unit 1104 of the monitoring terminal 11 of each building #1 to #3, which receives the request from the monitoring terminal 20 of the wide area center 2 via the network 3, transmits the received request to the controller 10 ( Figure 7 Step S121) The controller 10 operates the target device according to the received request.

[0092] The building management system executes the above-described processes of step S104 to step S122 until the monitoring user A logs out from the system portal.

[0093] As described above, in this embodiment, by using the information of the access level set in the central management system 1-1 to the central management system 1-3 of each building #1 to #3, the monitoring user of the wide area center does not need to set the management authority for each management object, so the burden of setting the access authority for the monitoring user of the wide area center can be reduced. In addition, in this embodiment, the monitoring user of the wide area center does not need to set whether to display or not display an alarm for each management object, so the burden of setting the access authority for the monitoring user of the wide area center can be reduced.

[0094] [Industrial Applicability]

[0095] The present invention can be applied to technology for remote management of buildings.

Claims

1. A building management system, characterized in that: include: Multiple central management systems are set up for each building to be managed and manage the equipment in the building; as well as The wide area center is connected to the plurality of central management systems via a network, The central management system for each building includes: A first storage unit configured to store information defining an access level of management authority of a facility manager of a building; and A first alarm notification unit is configured to transmit alarm information generated in a device of a building to the wide area center, The wide area center includes: a second storage unit configured to store setting information associating the monitoring user of the wide area center with the facility manager of each building; a setting information acquisition unit configured to refer to the setting information, identify a facility manager of a building associated with the monitoring user, and acquire information on access levels of the identified facility manager from the plurality of central management systems; and The second alarm notification unit is configured to refer to the access level information obtained by the setting information acquisition unit when receiving the alarm information, and when the equipment manager associated with the monitoring user has the alarm monitoring authority for the equipment of the building which is the source of the alarm information, determine that the monitoring user has the alarm monitoring authority, and notify the monitoring user of the received alarm information.

2. The building management system according to claim 1, characterized in that: When the second alarm notification unit receives the alarm information, it determines the category of the building and equipment where the alarm has occurred, and when the equipment manager associated with the monitoring user has alarm monitoring authority for the category of equipment in the determined building, it is determined that the monitoring user has alarm monitoring authority.

3. The building management system according to claim 1 or 2, characterized in that: The setting information is information for associating the monitoring user of the wide area center with the equipment manager of each building, and the equipment manager of each building manages the same type of equipment as that managed by the monitoring user.

4. A building management system, characterized in that include: Multiple central management systems are set up for each building to be managed and manage the equipment in the building; as well as The wide area center is connected to the plurality of central management systems via a network, The central management system for each building includes: A first storage unit configured to store information defining an access level of management authority of a facility manager of a building; and A first request processing unit is configured to process a request related to equipment in a building from the wide area center. The wide area center includes: a second storage unit configured to store setting information associating the monitoring user of the wide area center with the facility manager of each building; a setting information acquisition unit configured to refer to the setting information, identify a facility manager of a building associated with the monitoring user, and acquire information on access levels of the identified facility manager from the plurality of central management systems; and The second request processing unit is configured to refer to the access level information obtained by the setting information acquisition unit when a request related to the equipment of the building is received from the monitoring user, and when the equipment manager associated with the monitoring user has the management authority for the equipment of the building that is the request destination of the monitoring user, determine that the monitoring user has the management authority, and send the request from the monitoring user to the central management system of the building that is the request destination.

5. The building management system according to claim 4, characterized in that: When the monitoring user has a request related to the equipment of a building, the second request processing unit determines the building and equipment classification of the request destination, and when the equipment manager associated with the monitoring user has management authority over the equipment classification of the determined building, it is determined that the monitoring user has management authority.

6. The building management system according to claim 4 or 5, characterized in that: The setting information is information for associating the monitoring user of the wide area center with the equipment manager of each building, and the equipment manager of each building manages the same type of equipment as that managed by the monitoring user.

7. The building management system according to claim 4 or 5, characterized in that: The monitoring user's request for data viewing related to the equipment in the building is The first request processing unit transmits 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.

8. The building management system according to claim 4 or 5, characterized in that: From the requirements of monitoring users and equipment related to buildings to the operational requirements of the equipment, The first request processing unit transmits the request received from the wide area center to a controller that controls a device at a request destination.

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