JP2003284160A - Building management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a building management system capable of improving efficiency in a maintenance job. <P>SOLUTION: In the building management system wherein control terminals 2a,... for controlling a facility load and monitor terminals 2b,... for monitoring a state of input elements such as a sensor and a switch are connected to one or more autonomous distribution controllers 1,... of a stand alone type or a network type via a network L so as to apply monitor control to each terminal, each of the autonomous distribution controllers 1 includes: a power supply section 13 for receiving power from a commercial power source and applying a prescribed voltage to each section provided in the inside; a voltage detection section 14 for detecting the prescribed voltage supplied by the power supply section 13; and a processing program for instructing the broadcast detection section 14 to detect the voltage. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building management system adapted to monitor and control each terminal to be managed.

[0002]

2. Description of the Related Art Conventionally, a building management system shown in FIG. 7 has been known. This type of building management system is configured by connecting a stand-alone controller 100 to equipment terminals 2 such as a lighting equipment system and an air conditioning equipment system used for building management via an equipment network L.

The control controller 100 is adapted to sequentially call and communicate with various terminals in the equipment network L by a multiplex transmission signal, and is connected by giving control data to the control terminal 2a. It controls the equipment load, and causes the monitoring terminal 2b to return the state of signal input elements such as sensors and switches connected at the time of calling during the reply period provided in the transmission signal, and change the state of the input element. It is supposed to monitor.

In addition, in response to the recent trend toward the opening of facility networks, some of the controllers have a plurality of network-type controllers in the backbone network NT based on TCP / IP, as shown in FIG. There is also a type called an autonomous distributed controller 200 that is connected to each other and communicates with each other. Like the standalone controller 100, the autonomous decentralized controller 200 not only processes the data from the monitoring terminal 2b of the equipment network managed by itself, but also processes the data from the backbone network NT.
To another autonomous decentralized controller via the network, or a terminal 2 for monitoring itself or another autonomous decentralized controller
In response to the data from b, control data to be transmitted to a predetermined control terminal 2a of the distributed processing system equipment network managed by itself is created and controlled.

It is also possible to provide a system management computer 300 in a service company located on the remote side, and to check information concerning monitoring and control in these facility networks via the backbone network NT. There is. In such a case, the building management system is excellent in convenience such as being able to monitor the terminals in the facility network at the remote service center.

[0006]

By the way, in the above-mentioned building management system, it is customary to perform a maintenance work once every several months in order to improve the reliability of the system. In this maintenance work, a maintenance worker goes to an equipment room in the building to inspect the voltage inside the installed autonomous decentralized controller 200 and replace consumables. As shown in FIG. 9, such a voltage inspection involves troublesome work such as opening the door of the main body and measuring the voltage between predetermined terminals using an ammeter. Particularly, in a large-scale building management system in which a plurality of autonomous distributed controllers 200 ... Are connected, the work takes time.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a building management system which enables efficient maintenance work.

[0008]

According to a first aspect of the present invention, there is provided a building management system in which one or a plurality of stand-alone type or network type autonomous distributed controllers are provided with a control terminal for controlling equipment load, a sensor and a switch. In a building management system that connects a monitoring terminal for monitoring the state of input elements such as the above through an equipment network and performs monitoring control of each terminal, the autonomous decentralized controller receives power supply from a commercial power source. A processing program that has a power supply unit that supplies a predetermined voltage to each unit provided inside and a voltage detection unit that detects a predetermined voltage value supplied by the power supply unit, and that issues a processing program that commands voltage detection when a predetermined condition is met. It is characterized by performing a voltage detection operation. It should be noted that the predetermined condition includes, for example, the time when the autonomous distributed controller is powered on and the time set in the event list.

According to a second aspect of the present invention, in the building management system according to the first aspect, the autonomous distributed controller includes a storage section for storing the detected voltage value.

According to a third aspect of the present invention, in the building management system according to the second aspect, when the processing program determines that the detected voltage value is abnormal based on a predetermined rule, after a predetermined time has passed, The predetermined voltage determined to be abnormal is detected again.

A building management system according to a fourth aspect of the present invention is the building management system according to the third aspect, including an input unit for inputting operation contents and an output unit for displaying information on a terminal to be managed, and the operation from the input unit. When there is a request or when it is determined that the detected voltage value is abnormal based on a predetermined rule, the output unit displays the detected voltage value.

According to a fifth aspect of the present invention, in the building management system of the third aspect, a system management computer that communicates with the autonomous distributed controller is connected to a network to which the network type autonomous distributed controller is connected, The processing program notifies the system management computer when the detected voltage value is determined to be abnormal based on a predetermined rule.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a system configuration diagram of a building management system, FIG. 2 is an external view of an autonomous distributed controller in the building management system, FIG. 3 is a block diagram of the autonomous distributed controller, and FIG. 4 is a software configuration of the autonomous distributed controller. It is an explanatory view shown.

The embodiment of the building management system shown in FIG. 1 shows an example of managing building facilities such as a lighting facility system and an air conditioning facility system installed in a building. This building management system shows an example of a case where it is used in a large-scale system called a network type, and it is equipped with an autonomous distributed controller 1 ... Corresponding to each equipment system, and each autonomous distributed controller 1 is located in front of it. It manages each facility system network L such as the connected lighting facility system L1, air conditioning facility system L2, .... The facility network L communicates by a standardized communication method,
For example, in the network of the lighting equipment system L1, the terminal device 2
As a relay control terminal 2a2 for turning on / off the lighting load and a monitoring terminal 2a1 corresponding to a wall switch for operating the lighting load are connected, the monitoring control of the equipment is performed.

Each autonomous decentralized controller 1
Are connected by a backbone network NT based on TCP / IP, and exchange data with another autonomous distributed controller 1. In a small-scale building management system, the stand-alone autonomous decentralized controller 1 is used, and in that case, one autonomous decentralized controller 1 manages a plurality of facility networks L ....

The system management computer 3 can be connected to the backbone network NT. The system management computer 3 is a computer used by a building manager or, in some cases, managed by an engineering company or the like via a network such as the Internet or a dedicated line.
The equipment information in each equipment network L in the building in which is installed is acquired.

As shown in FIG. 2, the autonomous decentralized controller 1 is installed in a building management room or an equipment room, and is a backbone network N for constructing a building management system.
T and each equipment system network L. The operating power supply is adapted to be supplied from a commercial power supply (not shown).

FIG. 3 is a block diagram based on the hardware of the autonomous distributed controller 1. The TCP / IP communication unit 11 for communicating via the backbone network NT, and the communication via the equipment network. A facility communication unit 12 for performing the operation, a power supply unit 13 that receives power from a commercial power source and supplies a predetermined voltage to each unit in the controller, and a voltage detection unit 1 that detects a voltage value at a predetermined location.
4, an input unit 15 for processing inputs such as buttons provided on the main body surface, an output unit 16 for controlling the liquid crystal screen on the main body surface,
A storage unit 17 including a DB that stores the detected data and a processing program, and a CPU 1 on which various processing programs operate
8 are provided.

The TCP / IP communication section 11 uses the TCP / IP
Open communication based on
It is composed of a module for net (R) and the like. This TC
The P / IP communication unit 11 is interposed between the backbone network NT and the internal CPU 18 to communicate with other autonomous distributed controllers 1 ... Or to communicate with the system management computer 3 via a public line or the Internet. To do

The equipment communication unit 12 is for communicating with the equipment terminals 2 in the network L of each equipment, and is provided with a connection port corresponding to each equipment network L1, L2. For example, in the network L1 of the lighting equipment system, the wall switch 2b11 and the relay control terminal 2a12 for controlling the lighting device are connected, and when the operation for lighting the lighting device is performed by the wall switch, the autonomous distribution is performed. While the monitoring data is transmitted to the controller 1, the autonomous distributed controller 1 creates control data and transmits it to the relay control terminal. The equipment communication unit 12 performs data communication for monitoring and controlling the equipment terminal 2 in the equipment network L.

The power supply section 13 transforms a commercial power supply voltage of 100 V into a predetermined voltage used internally.
Inside the autonomous distributed controller 1, a voltage of 24V for facility communication and 3.3V and 5V for microcomputer operation are used, and the power supply unit 13 sets the power supply voltage to a voltage suitable for each part. Transform and supply.

The voltage detection unit 14 is an interface on the hardware side for voltage detection, and divides the detected voltage into a predetermined voltage and converts the detected analog value into a digital value. It is composed of an AD conversion circuit and the like. The voltage detection unit 14 acquires a voltage value supplied to each predetermined unit via a device driver unit 53 for hardware operation described later, and outputs a digital value.

The input unit 15 processes inputs such as buttons provided on the surface of the main body of the autonomous distributed controller 1, and delivers the contents of the input-operated event to the MMI processing unit 65 described later.

The output unit 16 controls the screen provided on the surface of the main body of the autonomous distributed controller 1, and receives the control content from the MMI processing unit 65 described later and controls the screen. The output unit 16 is not limited to the screen display, and may include an alarm sound output.

The storage unit 17 is composed of a RAM and the like, and is provided with a database DB for storing the detected data, a user program and the like.

The CPU 18 is composed of an arithmetic processing unit and provides a software environment for the autonomous distributed controller 1 to function as a building management system.

FIG. 4 is an explanatory diagram based on the software of the autonomous distributed controller. On a hardware block 51 that is an interface with each hardware, an OS program section 52 that provides a software operating environment in the autonomous distributed controller, A device driver unit 53 for controlling each device such as a transmission device and an input / output device, an API 54 (application program interface) for providing an environment for a higher-level program to easily operate hardware, and further higher level , Network manager unit 6 for communication
1, a GUI control unit 62 for controlling a screen, a user program unit 63 indicating an application, a DB operation unit 64 for DB operation, and the like.

The hardware block 51 is a TCP / I
An inter-interface with each hardware unit such as the P communication unit 11 and the output unit 16 is shown. The OS program section 52 manages the user program 63 based on an event list that describes which processing program should be started at a predetermined time. The user program section 63 is provided with a number of programs for functioning as a building management system, one of which is provided with a self-diagnosis program P. The self-diagnosis program P is an application for inspecting hardware and software inside the autonomous distributed controller 1, not for inspecting the equipment terminal 2 connected to the equipment network L managed by itself.

Next, the operation of the self-diagnosis program P as a processing program will be described. This self-diagnosis program P
Is activated when a predetermined condition is met. The predetermined condition corresponds to, for example, power-on, time set in the event list of the OS program unit 52, or the like. In this event list, for example, it is set to start every 23:00 on the last day of the month. When the program is activated, the voltage detection unit 14 is instructed via the device driver unit 53 to detect the voltage supplied by the power supply unit 13 (). Here, for example, the voltage supplied to the equipment communication unit 12 is detected, or the CPU 18 causes the TCP / IP unit 1 to detect the voltage.
The voltage supplied to 1 is detected.

When the voltage detection is completed and the voltage value as the measurement result is acquired, the detected voltage value is stored in the database DB of the storage unit 17 in conjunction with the DB operation unit 64 (). A range check is performed when storing. The data format stored in the database DB is as shown in FIG.
Data points, measurement dates, measurement times, and voltage values corresponding to predetermined locations for voltage detection are stored.

The self-diagnosis program P is adapted to check whether or not the detected voltage value is normal based on a predetermined rule. Here, when the detected voltage value deviates significantly from the default value registered in the DB at the data point, it is determined that the detected voltage value is not normal, that is, abnormal. The range judged to be abnormal depends on the data point, but for example, 5% of the default value
For example, when the distance is more than one.

If it is judged to be normal,
Although the program is to be ended, if it is determined to be abnormal, after a lapse of a predetermined time, the portion where the voltage value is measured is detected again. Also with respect to the result detected here, if the voltage value again deviates greatly from the default value, it is determined that an abnormality has occurred, and the abnormality notification application shown below is started.

In the abnormality notification application, a display for notifying that an abnormality has occurred is output at the output section 16 via the MMI (man-machine interface) application 65 and the GUI (graphic user interface) control section 62. Do (). In that case, the details of the abnormality such as the detected voltage value and the location of the abnormality are displayed on the screen,
The occurrence of an abnormality is notified by a blinking operation or the like. Next, the TCP / IP communication unit 11 is controlled via the network manager unit 61 to communicate with the system management computer 3 (). As a result, the system management computer 3 is notified of the details of the abnormality. System management computer 3
Then, when this abnormality is notified, the worker is notified by displaying the abnormality content such as the location of the autonomous distributed controller in which the abnormality has occurred and the location of the abnormality on the screen.

The processing program also includes a program that responds to inquiries from maintenance workers. In that case, for example, upon receiving an operation request from the input unit 15, the output unit 16 displays a screen as shown in FIG.

In this way, the autonomous distributed controller 1 detects the power supply unit 13 which receives power from the commercial power supply and supplies a predetermined voltage to each unit provided inside, and the predetermined voltage value supplied by the power supply unit 13. Voltage detector 1
4 and the processing program for instructing the voltage detection, the processing program can detect the voltage supplied by the power supply unit 13. Therefore, for example, no troublesome work such as measuring the voltage between terminals is required. Therefore, the maintenance work can be made efficient.

Further, since the autonomous decentralized controller 1 is provided with the storage unit for storing the detected voltage value, the accumulated voltage value data can be confirmed. Further, by confirming not only the voltage value at the time of detection but also the data of the accumulated voltage value, it is possible to judge that there is an abnormal tendency to be a state before the state judged as abnormal. That is, it becomes possible to detect an abnormality such as a failure at an early stage.

When the self-diagnosis program P judges that the detected voltage value is abnormal based on a predetermined rule, it will detect the predetermined voltage judged to be abnormal after a lapse of a predetermined time. Even if an accidental incorrect measurement result is obtained due to the cause, it is easy to obtain the correct measurement result by detecting again.

Further, it is provided with an input section for inputting operation contents and an output section for displaying information on a terminal to be managed, and when an operation request is made from the input section or a detected voltage value is set in a predetermined rule. If it is determined that there is an abnormality based on the above, the voltage value detected at the output section is displayed, so it is not necessary to open the door to detect the internal state, for example, and check the voltage detected at the output section. You can do it.

Further, a system management computer that communicates with the autonomous distributed controller is connected to the network to which the network type autonomous distributed controller is connected, and the detected voltage value in the autonomous distributed controller is abnormal based on a predetermined rule. If it is determined that the notification is sent to the system management computer, it becomes possible for a remote service company or the like to receive notification of an abnormality and confirm the voltage detection result.

Although the embodiment has been described above, for example,
Various modifications can be made to these, such as making changes to the user program. For example, in the self-diagnosis program, when it is determined that there is an abnormality, a predetermined action, for example, a function of stopping the transmission of only the air conditioning equipment system, a function of transmitting the detected voltage value to the system management controller regularly, etc. It is also possible to provide. By providing these functions, the reliability of the system can be further improved.

[0042]

In the building management system according to the first aspect of the present invention, the autonomous distributed controller is configured such that the autonomous decentralized controller is supplied with power from a commercial power source and supplies a predetermined voltage to each section provided therein, Since a voltage detection unit that detects a predetermined voltage value and a processing program that commands voltage detection are provided, the voltage supplied from the power supply unit can be detected by the processing program. Maintenance work can be streamlined without the need for troublesome work.

According to a second aspect of the present invention, in the building management system of the first aspect, the autonomous decentralized controller includes a storage unit for storing the detected voltage value. Therefore, not only the voltage value at the time of detection but also the storage value is stored. Since it is possible to confirm the tendency of the data of the applied voltage value, it is possible to detect a failure early.

According to a third aspect of the present invention, in the building management system according to the second aspect, when the processing program determines that the detected voltage value is abnormal based on a predetermined rule, it is abnormal after a predetermined time has elapsed. Since the predetermined voltage determined to be detected is detected again, it is easy to obtain a correct measurement result by detecting again.

A building management system according to a fourth aspect of the present invention is the building management system according to the third aspect, which includes an input unit for inputting operation contents and an output unit for displaying information of a terminal to be managed, and the operation from the input unit. When there is a request or when the detected voltage value is judged to be abnormal based on a predetermined rule, the voltage value detected at the output section is displayed, so the voltage detected at the output section is confirmed. be able to.

According to a fifth aspect of the present invention, in the building management system of the third aspect, a system management computer that communicates with the autonomous distributed controller is connected to a network to which the network type autonomous distributed controller is connected, and processing is performed. When the program determines that the detected voltage value is abnormal based on a predetermined rule, it notifies the system management computer so that the system management computer is notified of the abnormality content. It becomes possible to receive notification of an abnormality and confirm the voltage detection result.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a building management system according to an embodiment.

FIG. 2 is an external view of the above autonomous distributed controller.

FIG. 3 is a block diagram of the above autonomous distributed controller.

FIG. 4 is a software configuration diagram of the above autonomous decentralized controller.

FIG. 5 is an explanatory diagram showing an example of detection data of the above.

FIG. 6 is an explanatory diagram showing a display example of the self-diagnosis result of the above.

FIG. 7 is a block diagram of a building management system in a conventional example.

FIG. 8 is a block diagram of a building management system in a conventional example.

FIG. 9 is an explanatory diagram for explaining voltage inspection in an autonomous distributed controller in a conventional example.

[Explanation of symbols]

1 Autonomous decentralized controller 13 power supply 14 Voltage detector 16 Output section 17 Memory 2 terminals 3 system management computer P processing program L equipment network NT backbone network

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Claims (5)

[Claims] 1. A stand-alone or network type autonomous decentralized controller, a control terminal for controlling a facility load, and a monitoring terminal for monitoring a state of an input element such as a sensor or a switch are installed in the facility. Is a building management system that is connected via a system network and also connects between autonomous distributed controllers at a plurality of times to monitor and control each terminal managed by each autonomous distributed controller. Has a power supply unit that receives a power supply from a commercial power supply and supplies a predetermined voltage to each unit provided inside, and a voltage detection unit that detects a predetermined voltage value supplied by the power supply unit. A building management system comprising a processing program for instructing voltage detection when they match, and performing a voltage detection operation. 2. The building management system according to claim 1, wherein the autonomous decentralized controller includes a storage unit that stores the detected voltage value. 3. The processing program, when judging that the detected voltage value is abnormal based on a predetermined rule, redetects the predetermined voltage judged to be abnormal after a predetermined time has elapsed. Building management system described in. 4. The autonomous decentralized controller comprises an input unit for inputting operation contents and an output unit for displaying information on a terminal to be managed, and the like. When an operation request is made from the input unit,
The building management system according to claim 3, wherein when the detected voltage value is determined to be abnormal based on a predetermined rule, the detected voltage value is displayed on the output unit. 5. A system management computer that communicates with the autonomous distributed controller is connected to a network to which the network type autonomous distributed controller is connected, and the processing program sets the detected voltage value according to a predetermined rule. The building management system according to claim 3, wherein the system management computer is notified when it is determined to be abnormal based on the information.