JPH1146254A - Supervisory system for building group - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for duplicated external storage devices, to simplify complicated configuration, and to reduce cost by allowing a storage device of a computer system to store the entire management data of slave buildings and distributing and storing the same data into a storage device of a supervisory controller of a plurality of slave buildings. SOLUTION: Exclusive hard disk units HDD3, HDD3' are connected respectively to a master CPU 2 of a building group management center 1 and a slave CPU 2' thereof. The master system and the slave system are identical but independent systems and are connected to a redundant changeover device that selects the CPU of the master or the slave system. The redundant changeover device is connected to slave building groups 6, 6',..., 6" via MODEMs 7, 7',...7" and a public line 8, and automatically disconnects the master set, when the master system is faulty and connects the slave system to the public line 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is duplicated with a building or a factory (hereinafter, referred to as a child building) in which a monitoring control device for monitoring and controlling various equipment such as lighting equipment, air conditioning equipment, security equipment, and the like is installed. This is a building group monitoring system in which a building group management center having a computer system is connected to the building group management center via a public line. It relates to a building group monitoring system that issues a report.

[0002]

2. Description of the Related Art As shown in FIG. 4, a building group management center 1 has conventionally been provided with a duplex system in order to guarantee building management operations. In other words, a main device and a backup device that can act as a substitute when the main device is broken are prepared, and if the main device is broken, the switching device immediately switches to the backup device, and the building group management is continued as if nothing seemed to have occurred. This is a redundant system or a redundant system.

[0003] That is, in a conventional duplex system, two sets of computer systems having the same configuration are prepared. One is a master system, a CPU 2, a hard disk storage device 3 which stores a program, an OS, data necessary for operating operation of the system, a driver for managing peripheral devices, etc. 3, a printer 9 for printing out data, an operation status, etc. , A keyboard 11 for inputting data and the like to the system by manual operation, a CPU 2 ′ as a slave system, a hard disk storage device 3 ′, a printer 9 ′, a CRT display 10 ′, A keyboard 11 'is provided. Each of the CPUs 2 and 2 'is provided with a master storage device 5 and a slave storage device 5', both of which are hard disk storage devices, for sharing management data. When the management data is written to the master storage device 5 in consideration of the case where the master storage device 5 has crashed, the same data is also written to the slave storage device 5 ′ at the same time, and either the master or the slave is written. Automatically switch instantly in the event of a crash.

In order to control the writing and reading of the same data to and from the two storage devices, the master and the slave, and to detect and automatically switch if one crashes, a system of two types of the master and the slave is constantly used. A subsystem that operates synchronously with the same contents, that is, a redundant switching device 4 is prepared. A particularly complicated and expensive device in this duplex system is the redundant switching device 4, which uses particularly reliable components so as not to cause a failure, and the circuit and the like are internally duplicated so that the operation is not stopped. Are also expensive. Further, the main part including the CPUs of the master and slave systems requires a complicated interface for connecting to the redundant switching device 4, and is much more expensive than an equivalent single system. Such a completely non-stop, fast-response system is overkill for managing slow-moving objects such as buildings.

[0005] As other devices, child buildings 6, 6 ',
There are modems 7, 7 ', 7''for data communication between 6''and the management system. The child building is connected to the building group management center 1 via a public line network 8. Each child building 6,
Monitoring control devices are installed in 6 ′ and 6 ″. A modem 1 used for data transmission is provided for each monitoring control device.
2, 12 ', 12'', CPU 13, 13', 1
3 ″, a hard disk storage device (hereinafter, referred to as an HDD) 1 for storing an OS, a control program, and data.
4, 14 ', 14''and an input / output device are incorporated.

[0006]

An object of the present invention is to provide a building group management system in which a plurality of child buildings and a building group management center having a duplicated computer system are connected by a public line. In the building group monitoring system, which alerts the building group management center via a public line of failures of various equipment in the child building, intrusion alarms when unmanned, etc., it eliminates the need for redundant external storage devices. To provide a building group monitoring system in which the complexity of the building is reduced and the cost is reduced.

[0007]

In order to solve the problem of the present invention, a building group management center is constituted by a duplicated computer system, and a set of management data of a child building is stored in a storage device of one computer system. In addition, the same set of data is distributed and stored in the storage devices of the monitoring control devices of a plurality of child buildings. The distributed storage of the management data in the child building is performed by adding the management data of the child building to the transmitted data at the time of the healthy check communication performed between the building group management center and the child building. From the child building to be stored in the storage device in the monitoring and control device of the child building. Further, when one computer system fails, the redundant device detects this and switches to the other computer system, and the other computer system is distributed and stored in the storage devices of the monitoring and control devices of the plurality of child buildings. The management data that has been collected is successively downloaded, and the collected management data is arranged and stored in a storage device, and the system of the building group management center is started.

[0008]

FIG. 1 is a block diagram showing a system configuration of a building group monitoring system according to one embodiment of the present invention.
FIG. 2 is a transmission text format when the building group management center 1 according to the present invention adds management data to healthy check data performed on child buildings 6, 6 ′, 6 ″,. Building group management center 1 according to the present invention
FIG. 6 is a diagram showing a transmission procedure between public buildings and child buildings 6, 6 ′, 6 ″,. Here, the management data refers to the security status data of the child building, which changes from moment to moment, and fixed data, such as the telephone number of each child building, the lighting control of each child building, the setting data such as the automatic operation of air conditioning, and the like. And the stored data such as the alarm history. The management data includes the data of the building where the building group management center is installed.

In FIG. 1, a master CPU 2 of a building group management center 1 has a dedicated hard disk storage HDD 3 connected thereto, and a slave CPU 2 ′.
Similarly have a dedicated HDD 3 '. Each H
The DD includes a DOS, an application program, data, a storage space, and the like, and is used for each control. The master and slave systems are independent and equivalent systems and are connected to the redundancy switching device 4. The redundancy switching device 4 is a device for switching the CPU between the master and the slave. The master and the slave are regularly interrogated to confirm the life and death of the master and the slave, and the operation is inspected. If the master becomes defective, the slave is immediately switched to the slave. Switch and start the system restoration operation. In this case, no special interface is used, and a known watchdog timer is used. If the slave breaks down, it immediately contacts the person in charge of maintenance of the device, turns on the alarm lamp, displays on the CRT 15 on the master side, and outputs a message to the printer 14. When the master is out of order, the maintenance person of the apparatus is similarly contacted by telephone, turns on the alarm lamp, displays on the CRT 15 'on the slave side, and outputs a message to the printer 14'.
The redundancy switching device 4 is connected to the sub-building groups 6, 6 ', 6 ",... Via modems 7, 7', 7" and a public line network 8. Normally, the master side is connected to the network 8 and automatically disconnects if the master fails.
The slave is connected to the network 8.

The sub-buildings 6, 6 ', 6''transmit to the building group management center 1 information on failures and warnings whenever necessary. This confirms the life and death of the child building.
However, the building group management center 1 has child buildings 6, 6 ',
6 '', healthy check against child building 6,
Assuming that there is no alarm from 6 ', 6''for a certain time,
In order to confirm the life of the child building, the center 1 constantly inquires about the status of the child buildings 6, 6 ', 6'',. The master CPU 2 of the center 1 is connected to the modems 7, 7 ',
7 ″,... And the public building 6 via the public network 8
The text for the health check is transmitted to 6 ′, 6 ″,... At regular intervals. FIG. 3 shows a transmission procedure used in this case, FIG. 2 shows a transmission text, and Table 1 shows a transmission type. In FIG. 2, reference numeral 20 denotes a basic text pattern, which has a known format. Reference numeral 21 denotes a data portion in the basic pattern 20, and includes a type, date, hour, minute,
It is composed of spare parts and the like. Table 1 explains the type part in detail. Type 01 is failure and alarm information transmitted from the child building to the center. Type 02 is a healthy check, which is transmitted from the center to the child building. FIG. 3 shows a transmission procedure for mutually transmitting text between the center and the child building. FIG. 3 shows a case of a healthy check performed from a center to a child building. The transmission procedure itself is a known method.

[0011]

[Table 1] The center 1 sequentially connects telephone lines to a plurality of child buildings, transmits a building number, healthy check data, and the like according to a procedure, receives a confirmation signal from the child buildings, and ends transmission.

From the center 1 to the child buildings 6, 6 ', 6'',
, Using the spare part included in the data part 21 in the transmission format 20 of the healthy check that is executed at a fixed cycle for each child building 6, 6 ′, 6 ″,.
-The management data allocated for each is added in small amounts and transmitted. In this case, the type of the data part 21 is 02 in Table 1. The management data includes fixed data such as a building group management schedule, a telephone number of each child building, lighting / air-conditioning control setting data of the child building including its own building, security history of each child building, etc. Since it contains data that changes from moment to moment, which is generated by the above activities, it is constantly transmitted repeatedly for updating. The child buildings 6, 6 ′, 6 ″,... That have received the healthy check return a normal response and store the added management data in the storage device in the monitoring and control device in an updated form in a partially overwritten manner. .

Normally, a warning is issued from the child buildings 6, 6 ', 6'',... To the center 1 twice a day and is of type 01 in Table 1. One is child building 6, 6 ', 6'',
Is a notification that notifies the center 1 of the start of the security state when the vehicle becomes unmanned, and the other is a notification that notifies the center 1 of the release of the security state when the vehicle becomes manned. The interval between these two alerts is generally around 12 hours, but in many cases there is almost no case where an alert is issued. Therefore, it is necessary to monitor the intrusion alarm and the equipment failure especially in the security state. If the warning does not come to Center 1 for a certain period of time, cope with child buildings 6, 6 ', 6'', ...
The above-mentioned healthy check transmission is required to check the state of (1).

The transmission time by the transmission procedure of the healthy check shown in FIG. 2 requires about one and a half minutes when the transmission speed is 2400 bps. Basic phone charge 10 for 3 minutes
In the case of a circle, less than one minute of transmission time is wasted. By adding and transmitting the management data during this extra time, it becomes possible to transmit the management data to the child buildings 6, 6 ', 6'',... Without increasing the telephone charge. In addition to the health check, it is also possible to add management data to the security status start / release communication that is issued twice a day and transmit it to child buildings 6, 6 ', 6'', ... is there. This is because when transmitting data via the public line network 8, about half of the transmission time is spent in various procedures from transmission of the telephone number to actual transmission of data.

The master-side CPU of the center 1 shown in FIG.
When a failure occurs in the slave 2, the public line network 8 on the child building side is connected to the CPU 2 ′ on the slave side by the redundancy switching device 4. When the CPU 2 'detects that the line of the child building is connected, the CPU 2' reads management data from the child building according to the transmission procedure shown in FIG.
Write to the 3 'storage space and restore the system. In the event of a failure, data that could not be updated will be lost, but the system will be restored in the immediately preceding cycle with the distributed and stored data and the current status data stored on the child building side. It is needless to say that the influence can be reduced by determining the cycle according to the importance of the alert.

[0016]

The duplicated system shown in FIG. 4 is a highly reliable device that can duplicate the main storage device including the shared storage device and instantaneously switch from the master to the slave and continue the monitoring operation when the center device fails. . However, the behavior of a building such as a sub building to which the present invention is applied is slow and does not require the continuation of operation by instantaneous switching. Although it takes a little time for recovery, it is desirable that it be widely used at low cost, in which case the present invention is effective. According to the present invention, a building management and monitoring system eliminates the need for (1) a complicated and expensive shared redundant storage device and a peripheral control device, and (2) a method of centrally erasing all data due to centralization by distributing and storing management data. Escape from danger, (3) Increase the efficiency of transmission charges by using the remaining transmission time between the center and child buildings that have not been used for management data transmission, and manually restore the data when restoring the center By minimizing the time, we were able to achieve results such as reducing the recovery time. (4) Further, since the master and slave systems are the same mass-produced devices that operate independently and need only be switched and used by the redundancy switching device, the system is simplified and contributes to cost reduction. ing.

[Brief description of the drawings]

FIG. 1 is a block diagram of a building group monitoring system according to an embodiment of the present invention.

FIG. 2 is a diagram showing a transmission text format when management data is added to healthy check data.

FIG. 3 is a diagram showing a transmission procedure between a center and a child building via a public network.

FIG. 4 is a block diagram showing a configuration example of a conventional building group monitoring system.

[Explanation of symbols]

 1 Building Group Management Center 2 Master CPU 2 'Slave CPU 3 Master HDD 3' Slave HDD 4 Redundancy Switching Device 5 Master Shared HDD 5 'Slave Shared HDD 6 Child Building 6' Child Building 6 '' Child Building 7 Modem 7 'Modem 7' Modem 8 Public line network 9 Master printer 9 'Slave printer 10 Master CRT 10' Slave CRT 11 Master keyboard 11 'Slave keyboard 12 Child building modem 12' Child building modem 12 '' Child building modem 13 Child building CPU 13 'child building CPU 13' 'child building CPU 14 child building HDD 14' child building HDD 14 '' child building HDD 20 basic text pattern 21 data part

Claims (3)

[Claims] 1. A plurality of sub-buildings each having a monitoring and control device and a building group management center are connected via a public line, and various facilities and equipment of these sub-buildings and an intruder during unmanned operation are monitored by the building group management center. In a building group monitoring system, a building group management center is composed of a duplicated computer system, a set of management data of a child building is stored in a storage device of one computer system, and the same set of data is stored in a plurality of child systems. A building group monitoring system, wherein the building group monitoring system is distributed and stored in a storage device of a building monitoring and control device. 2. In a healthy check communication carried out between a building group management center and a child building, the management data of the child building is added to the transmitted data and transmitted from the building group management center to the child building. 2. The building group monitoring system according to claim 1, wherein the storage unit is stored in a storage device in the monitoring control device of the child building. 3. When one of the computer systems fails, the redundancy device detects the failure and switches to the other computer system, and the other computer system is distributed to the storage devices of the supervisory control devices of a plurality of child buildings. Transmission control means for successively sucking management data stored and stored, and means for arranging and storing the sucked management data in a storage device and starting up a system of a building group management center. Item 2. The building group monitoring system according to Item 1.