JPH0612421A - Distributed building managing system - Google Patents

Abstract

PURPOSE:To provide a distributed building management system which reduces the burden of a central processing unit and also, improves safety in the failure of the central processing unit and moreover, can shorten the transmission time of common data and improves the flexibility of the system. CONSTITUTION:In the distributed building management system consisting of a central processing unit 1, plural equipment processors 2 and a communication controller 3 for controlling a communication between the central processing unit 1 and plural equipment processors 2, this system is constituted of a common data transmitting means 3a which is provided on the communication controller 3 and transmits common data used in common between plural equipment processors 2 to plural equipment processors 2 in a prescribed period and the transmission line 4 of the common data provided between the communication controllers 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention reduces the load on the central processing unit, improves the safety when the central processing unit is down, further shortens the transmission time of common data, and improves the flexibility of the system. The present invention relates to a type building management system.

[0002]

2. Description of the Related Art FIG. 7 shows a Mitsubishi building management system M, for example.
It is a block diagram which shows the structure of the conventional distributed type building management system described in the ELBAS-D catalog (published by Mitsubishi Electric Corporation in 1990). In the figure, 51 is a central processing unit, 52, 53 and 54 are equipment processing. A device, 55 is a communication control device for controlling communication between the central processing unit 51 and the facility processing devices 52, 53, 54.

Next, the operation will be described.

In this distributed building management system,
Equipment processing device 52, equipment processing device 53, equipment processing device 5
4 processes the information registered in advance as common data in the central processing unit 51 based on the information sent from the communication control unit 55, and processes the processed common data into all the common data via the communication control unit 55. Send to the equipment processor.
In this case, the data format of the common data transmitted to all the equipment processing devices is fixed.

[0005]

Since the conventional distributed building management system is configured as described above, the information from the facility processing device 52, the facility processing device 53 and the facility processing device 54 is stored in the central processing unit 51. However, since it is transmitted as common data to all the equipment processing devices 52, 53, 54, there is a problem that the transmission time becomes long.

Further, when the central processing unit goes down, the common data required between the equipment processing units 52, 53 and 54 are not sent and the respective equipment processing units are operating normally. There is a problem that the supervisory control that requires the common data cannot be performed, and further, when the common data is changed, the central processing unit needs to be repaired.

Further, when increasing the transmission amount of the common data, there is a problem that the update cycle of the common data must be lengthened due to the problem of communication load.

The present invention has been made to solve the above-mentioned problems, and reduces the load on the central processing unit, improves the safety when the central processing unit is down, and further reduces the transmission time of common data. It is an object of the present invention to provide a distributed building management system that can be shortened and has improved system flexibility.

[0009]

According to a first aspect of the present invention, there is provided a distributed building management system in which a plurality of equipments are provided with common data which is provided in a communication control device and is commonly used by the plurality of equipment processing devices. It has a common data transmitting means for transmitting to the processing device in a predetermined cycle, and a transmission path of the common data provided between the communication control devices.

In the distributed building management system according to the second aspect of the present invention, the data format at the time of common data transmission provided in the communication control device is divided into N data areas, and the update cycle of each data area is changed. Accordingly, it has a common data transmitting means capable of transmitting a large amount of data, and the common data transmission path provided between the communication control devices.

In the distributed building management system according to the third aspect of the present invention, the common data provided in the communication control device and commonly used by the plurality of equipment processing devices is given to the plurality of equipment processing devices in a predetermined cycle. Common data transmission means for transmitting the common data, and common data definition information for defining the common data when the common data is sent from the equipment processing device and is added to the data format of the common data. The common data definition information adding means and the common data transmission path provided between the communication control devices.

[0012]

In the distributed building management system according to the first aspect of the present invention, common data commonly used by a plurality of facility processing devices is provided between the communication control devices without passing through the central processing device. Since the data is sent to the above-mentioned plurality of equipment processing devices at a predetermined cycle via the common data transmission path, the load on the central processing device is reduced and the safety when the central processing device is down is improved. Can be shortened.

In the distributed building management system according to the second aspect of the present invention, the data format at the time of common data transmission is divided into N data areas, and the update cycle of each data area is changed so that the communication control devices can communicate with each other. Since a large amount of data can be transmitted through the common data transmission path provided in the above, the load on the central processing unit is reduced and the safety when the central processing unit is down is improved. Transmission time can be shortened.

In the distributed building management system according to the third aspect of the present invention, when the common data is transmitted from the equipment processing device, the common data definition information for defining the common data is added to the data format of the common data. So
The definition of the common data can be changed in the equipment processing device, and the flexibility of the system is improved.

[0015]

【Example】

Example 1. Embodiment 1 of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a central processing unit, 2 is a facility processing unit, 3 is a communication control unit that controls communication between the central processing unit 1 and the facility processing unit 2, and 4 is a connection between communication control units 3. It is a transmission line that The communication control device 3 is provided with a common data transmitting circuit 3a which is a common data transmitting means for transmitting common data commonly used by the equipment processing devices 2 to the equipment processing device 2 at a predetermined cycle.

In this embodiment, the information sent from the equipment processing device 2 is sent to all the equipment processing devices 2 as information sent from the communication control device 3 to the central processing device 1 and common data of the equipment processing devices. Information. In this case, the information serving as common data is transmitted to the entire facility processing device 2 at a predetermined cycle by the common data transmission circuit 3a,
Further, when transmitting the information serving as common data to the equipment processing device 2 connected to another communication control device 3, it is performed via the transmission path 4 connecting the communication control devices 3 to each other.

As described above, in this embodiment, the central processing unit 1 does not generate the information that becomes the common data, and the central processing unit 1 transfers the communication function to the communication control unit 3. As a result, the load on the central processing unit 1 can be reduced, and when the central processing unit 1 is down, common data cannot be obtained even though the respective facility processing units are operating normally, and monitoring control is performed. You can avoid the situation where you can not do it, safety is improved,
Further, the information serving as common data does not pass through the central processing unit 1 and the transmission path 4 provided between the communication control devices 3
As a result, it is possible to transmit from the communication control device 3 to the equipment processing device, so that the transmission time can be shortened.

Example 2. Since the configuration of the second embodiment is the same as that of FIG. 1, it will be described below with reference to FIG. In this embodiment, the common data transmission circuit 3a, which is the common data transmission means, divides the data format at the time of common data transmission into N data areas and changes the update cycle of each data area to generate a large amount of data. It has a circuit configuration that can transmit the amount.

FIG. 2 is a data format diagram of common data transmitted from the communication control unit 3 of this embodiment to the equipment processing unit 2. In FIG. 2, 5 is a high-speed update data area into which data that must be updated at high speed is inserted,
Reference numeral 6 is a medium-speed update data area in which data that may be updated at medium speed is inserted, and 7 is a low-speed update data area in which data that may be updated at low speed is inserted.

FIG. 3 is a data format diagram showing all areas of common data shared by the communication control device 3 and the equipment processing device 2 shown in FIG. 2, and the same parts as those in FIG. I am doing it. In FIG. 3, the high-speed update data area 5 is an area that is updated each time common data is transmitted from the common data transmission circuit 3a of the communication control device 3 to the equipment processing device 2, and (5-1) indicates communication control. The data is updated each time transmission is performed from the common data transmission circuit 3a of the device 3 to the facility processing device 2, and transmission of all data is completed each time transmission is performed.

The medium-speed update data area 6 is a medium-speed update data area in which the transmission of all data is completed by the transmission from the common data transmission circuit 3a of the communication control device 3 to the equipment processing device 10 ten times. (6-1) to (6-10)
Is data transmitted from the common data transmission circuit 3a of the communication control device 3 to the equipment processing device 2 each time.
The transmission of all the data from (6-1) to (6-10) is completed by repeating the transmission once.

The low-speed update data area 7 is a low-speed update data area in which the transmission of all data is completed by 60 transmissions from the common data transmission circuit 3a of the communication control device 3 to the equipment processing device 2, and (7 -1) to (7-60)
Is data transmitted from the common data transmission circuit 3a of the communication control device 3 to the equipment processing device 2 each time.
By repeating the transmission once, the transmission of all data from (7-1) to (7-60) is completed.

Next, the operation will be described. FIG. 4 is an explanatory diagram for explaining this operation. In the figure, in the first transmission, data 1 to data 10 are transmitted as common data from the communication control device 3 to the equipment processing device 2 by the high speed update data area 5, and data 11 to data 20 are transmitted by the medium speed update data area 6. Then, the data 121 to the data 130 are transmitted by the low speed update data area 7.

In the second transmission, data 1 to data 10 are transmitted from the communication control device 3 to the equipment processing device 2 as common data by the high speed update data area 5, and data 2 is transmitted.
1 to data 30 are transmitted by the medium speed update data area 6, and data 131 to data 140 are transmitted by the low speed update data area 7.

Therefore, data 1 to high speed update data area 5
The data 10 will be updated every time. In the tenth transmission, the high speed update data area 5 transmits data 1 to data 10, the medium speed update data area 6 transmits data 111 to data 120, and the low speed update data area 7 transmits data 221 to data 230. Sent.
At this point, transmission of all data by the medium speed update data area 6 is completed, and new data is updated.

Further, in the 60th transmission, the high speed update data area 5 transmits data 1 to data 10, the medium speed update data area 6 transmits data 111 to data 120, and the low speed update data area 7 transmits data 701 to data. 710 is transmitted, and at this time, the transmission of all data by the low speed update data area 7 is completed, and the data is updated with new data.

In this embodiment, 10 pieces of data 1 to 10 are transmitted by the high speed update data area 5 in one transmission, and 10 pieces of data 11 to 20 are sent in the medium speed update data area 6. Data is transmitted, and in the low-speed update data area 7, for example, 10 pieces of data 121 to 130 are transmitted, and each data update is transmitted every time, every 10 times transmission, every 60 times transmission. However, the number of times is not limited to these.
The number of times may be changed according to the request of the system.

As described above, in this embodiment, the data format of the common data is divided into the high-speed update data area 5, the medium-speed update data area 6 and the low-speed update data area 7, and the update cycle is changed respectively. Therefore, for data of high importance, which is requested to be updated at high speed, the data is allocated to the high-speed update data area 5 and updated every time transmission is performed.
Further, by assigning the other data to the medium-speed update data area 6 or the low-speed update data area 7 having a slow update cycle, a larger amount of data can be transmitted.

Example 3. FIG. 5 is a block diagram showing the configuration of the distributed building management system of this embodiment. 5, parts that are the same as or correspond to those in FIG. 1 are assigned the same reference numerals and explanations thereof are omitted.

In this embodiment, when the common data is sent from the equipment processing device 2, common data definition information adding means for adding common data definition information for defining the common data to the data format of the common data. The common data definition information adding circuit 2a is provided in the equipment processing device 2.

FIG. 6 is a data format diagram of common data transmitted from the equipment processing device 2 of this embodiment to the communication control device 3. In FIG. 6, 8 is a common data number, which is common data definition information for defining common data. Reference numeral 9 is common data transmitted to all equipment processing devices 2 via the communication control device 3.

The equipment processing apparatus 2 attaches the common data number 8 to the common data by the common data definition information adding circuit 2a and transmits it when the state of the monitored item changes or at a predetermined cycle. The communication control device 3 stores the common data sent from the equipment processing device 2 in the common data area according to the common data number, and transmits it to all the equipment processing devices 2 in a predetermined cycle.

Therefore, the definition accompanying the generation of the common data can be performed by the facility processing unit 2 and need not be performed by the central processing unit 1, so that it is possible to flexibly change the items of the common data in the distributed building management system. You can deal with it.

[0034]

As described above, according to the first aspect of the present invention, the common data commonly used by the equipment processing devices is provided between the communication control devices without passing through the central processing device. Since the data is transmitted to the facility processing device via the common data transmission path at a predetermined cycle, the load on the central processing device is reduced, the safety when the central processing device is down is improved, and the common data transmission time is further shortened. it can.

According to the second aspect of the present invention, the data format at the time of transmitting the common data is divided into N data areas, and the update cycle of each data area is changed so as to be provided between the communication control devices. Since it is possible to send a large amount of data via the common data transmission path,
It is possible to reduce the load on the central processing unit, improve the safety when the central processing unit is down, and shorten the transmission time of common data.

According to the invention of claim 3, the common data definition information for defining the common data is added to the data format of the common data when the common data is transmitted from the equipment processing device. The definition of can be changed in the equipment processing unit, and it is not necessary to change it in the central processing unit, thus improving the flexibility of the system.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a distributed building management system according to an embodiment of the present invention.

FIG. 2 is a data format diagram of common data according to an embodiment of the present invention.

FIG. 3 is a data format diagram showing all areas of common data shared by a communication control device and an equipment processing device according to an embodiment of the present invention.

FIG. 4 is an explanatory diagram for explaining an operation according to an embodiment of the invention of claim 2;

FIG. 5 is a block diagram showing a configuration of a distributed building management system according to an embodiment of the present invention.

FIG. 6 is a data format diagram of common data with common data numbers according to an embodiment of the invention of claim 3;

FIG. 7 is a block diagram showing a configuration of a conventional distributed building management system.

[Explanation of symbols]

1 Central Processing Unit 2 Equipment Processing Unit 2a Common Data Definition Information Addition Circuit (Common Data Definition Information Addition Unit) 3 Communication Control Unit 3a Common Data Transmission Circuit (Common Data Transmission Unit) 4 Transmission Line 8 Common Data Definition Information 9 Common Data

Claims (3)

[Claims] 1. A central processing unit and a plurality of facility processing units,
In a distributed building management system including a communication control device that controls communication between the central processing device and a plurality of facility processing devices, the distributed building management system is provided in the communication control device and commonly used by the plurality of facility processing devices. A distributed type characterized by having common data transmitting means for transmitting common data to the plurality of facility processing devices at a predetermined cycle, and a transmission path for the common data provided between the communication control devices. Building management system. 2. A central processing unit and a plurality of facility processing units,
In a distributed building management system comprising a communication control device for controlling communication between the central processing unit and a plurality of facility processing units, a data format for transmitting common data provided in the communication control unit has N data areas. Split into
It has a common data transmitting means capable of transmitting a large amount of data by changing the update period of each data area, and the common data transmission path provided between the communication control devices. A distributed building management system. 3. A central processing unit and a plurality of facility processing units,
In a distributed building management system including a communication control device that controls communication between the central processing device and a plurality of facility processing devices, the distributed building management system is provided in the communication control device and commonly used by the plurality of facility processing devices. Common data transmitting means for transmitting common data to the plurality of equipment processing devices at a predetermined cycle, and for defining common data when common data is sent from the equipment processing device provided in the equipment processing device Common data definition information adding means for adding common data definition information to the data format of the common data,
A distributed building management system comprising: the common data transmission path provided between the communication control devices.