JPS61121551A - Remote supervising and controlling device - Google Patents

Abstract

PURPOSE:To attain an accurate fault monitor function by performing the periodical transmission of data independently and at all times between a center device and a terminal equipment based on the prescribed conditions. CONSTITUTION:The operation schedule held at a memory part 14 is compared with a built-in timepiece through a central processing part 10. The part 10 extracts circuit check processing data at a due time point and gives a connection command of a communication circuit L to a communication control part 20. A terminal equipment T receives a data transmission request via a communication control part 34 and sends the working states of the present equipments M1-Mi and sensors S1-Si. The part 10 compares those working states with the state data obtained in the circuit check processing mode preceding by a step. Then the part 10 performs normal processing and fault processing when coincidence and dissidence are obtained respectively from said comparison.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a remote 8 monitoring and control device for centrally controlling and monitoring various types of equipment such as buildings, and in particular for routine control management. is carried out according to a predetermined operation schedule at the terminal, and abnormality monitoring and operation schedule are carried out at the center.
This invention relates to a remote monitoring and control device that allows only settings and changes to be made.

[Background of the invention]

Modernized buildings have various types of equipment such as air conditioning equipment, elevators, various sensors for disaster prevention, and power receiving and substation equipment, and therefore have advanced building management systems.

However, on the other hand, there is a strong desire to save labor, and for this reason, unmanned management systems that automate building management have come into practical use.

By the way, as methods for automatically controlling equipment inside a building in such an unmanned management system, there are known a so-called offline method and an online method.

Of these, the offline method involves installing an automatic control device in a building, incorporating a predetermined operation schedule (control program) into this automatic control device, and operating various equipment in the building according to this operation schedule. Therefore, with this method, if there is a change in the operation schedule, it is necessary to change the program settings of the automatic control device installed in each building. However, the cost and manpower required for this increase in proportion to the number of buildings to be managed.

Furthermore, in this method, in order to efficiently monitor whether the equipment is operating correctly, it is necessary to use an automatic monitoring system.

On the other hand, in the online method, equipment in each building is remotely controlled from a central device at any time according to operator operations, or automatically according to an equipment control program stored in the central device. With this method, it is relatively easy to deal with changes in a single device control program, and the status of each piece of equipment can be monitored using the same central device, making it possible to provide detailed and effective services.

However, on the other hand, there is a drawback that if a failure occurs in the center device, it becomes impossible to control all buildings.

In order to compensate for this drawback, it is necessary to increase reliability by duplicating the center device, which increases the price accordingly.

Therefore, in order to take advantage of the advantages of these two conventionally known methods, for example, as described in Japanese Patent Application Laid-Open No. 56-147590, the center device is connected to the terminal device via a communication line. The control data is sent to the terminal device, and the control data is stored in the terminal device. After that, the control data is read out at any time during the month and all equipment is controlled. This ensures normal operation of the equipment in the building even in the event of a failure of the center equipment. A remote control monitoring method is known that has a function of monitoring the operation of equipment in a building in a center device and a function of controlling the equipment at any time by a center operator.

However, with this method, data communication between the center side and the terminals is only performed once a month.
Therefore, even if a failure occurs in the data communication function, the cabinet will not be able to know about it.

Therefore, this method has the disadvantage that even if an abnormality occurs in equipment on the terminal side and an abnormality occurrence alarm signal is issued, there is no guarantee that the signal will always be reliably transmitted to the center side. Ta.

[Purpose of the invention]

An object of the present invention is to provide a remote monitoring and control device that eliminates the drawbacks of the prior art described above and that is capable of constantly checking the data communication function between the center side and the terminal side, and that can always reliably maintain the abnormality monitoring function. is to provide.

[Summary of the invention]

In order to achieve this object, the present invention provides a remote monitoring and control device equipped with a center device and a terminal device. It is characterized in that data transmission operations are always carried out almost periodically based on predetermined conditions, independently of the originally required data communication between A and D.

[Embodiments of the invention]

This will be explained in detail with reference to the illustrated embodiment.

FIG. 2 shows the overall configuration of a system in which an embodiment of the present invention is applied, in which the center device C is connected to the first terminal device T11. Each communication port # is connected to the r1th terminal device Ta.
]L,,L,.

On the output side of the terminal device T1, equipment Mt ”' Mt+
is connected, and a sensor S, ~8m is connected to the input side.

Similarly, on the output side and input side of the terminal device To, equipment M,
~M, and sensors S, -S, are connected, respectively. Note that Senna Si~8m is also a type of equipment, but is treated separately here.

The terminal devices T1 to Tt+ operate the equipment M1 to Mn and the sensor S1 according to a pre-installed schedule program.
~ 8a and always control the equipment M.

~Mn, and monitors the status of sensors S1 to Sn.

℃, if an abnormality occurs in the monitored equipment M8 to M, or if sensor SI-8n is activated, the abnormality is reported to the center device C via the communication line ~Ln. When received, it is visually displayed or printed on a printer, and the operator is notified so that support can be provided by corresponding measures.

In addition, when there is a change in the schedule held by the terminal devices T1 to T, or when the equipment M1 to M are directly controlled from the center side, the communication line L is sent from the center device C.
1 to terminal devices T1 to T via Ln.

The terminal devices T, -Ttt receive this data and change the schedule and control the equipment M1 - hermitage.

The center device C and the terminal device T (T, −
The details of T, > will be explained.

The center device C includes a central processing unit 10 that creates and executes an operation schedule and receives failure warning signals, an input operation unit 12 that inputs common wage information of the system and individual management information to be registered in the operation schedule. a storage unit 14 that holds information input from the input operation unit 12 and the operation schedule; a display unit 16 that displays data processing results and assists operator input operations and troubleshooting;
Printing section 1 that prints processing results and periodic reports
8. Consists of a communication control unit which is an interface for data communication with the terminal device T.

On the other hand, the terminal device T has a storage unit that stores its own schedule and schedule change data sent from the center device C via the communication line, and processes according to the schedule and the center device C. A terminal processing unit that executes processing in response to commands from the terminal, and a communication control a1 that is an interface for data communication with the center device C.
It consists of Department U.

Next, the operation of this embodiment will be explained.

The center device C automatically operates according to the operation schedule y held in the storage unit 14, but this operation schedule is changed when the terminal device T becomes a new monitoring target of the center device C. Individual management information necessary to monitor and control the 'r (terminal device number, equipment name, configuration, number of points, etc.) and information necessary for the processing to be executed (processing execution time, processing content, processing equipment equipment etc.
) is created by the processing unit 10 based on the following. The basic operation schedule at this time includes the center device C.
connects the communication line to the terminal device [T, performs predetermined data communication for checking, and connects the center device C and the terminal device T.
A process to check that the terminal is connected normally via the communication line 1ML and that data communication can be performed reliably (hereinafter referred to as line check process), and the operating status of each terminal device is automatically output as a report. (hereinafter referred to as periodic print processing), which includes line check processing, in which when an abnormality occurs in the equipment M of the terminal mtT and a warning signal is sent to the center device C, The feature of this bq is that it is a process that quickly detects the occurrence of problems such as failure of the communication control device or poor connection with the communication line, causing the communication line @L to be unable to connect and data communication to be impossible. However, this point will be explained in detail later.

The terminal device tT has a read-only memory (OM) in its memory s30, and uses this ROM to set the operation schedule necessary for controlling the equipment M in a number of patterns (weekday pattern).

Holiday patterns, etc.) can be set in advance.

Then, the terminal processing unit 32 transfers the operation schedule pattern stored in this ROM to a random access memory (AM) of the storage unit, and selects one of the operation schedule patterns stored in this RAM on that day. Select the matching pattern, and based on this select the equipment M,
~M, is automatically controlled.

In this embodiment, when it becomes necessary to change or prohibit processing for this schedule pattern, input operation s12 of the center device C is used to input the terminal device number necessary for changing the schedule pattern and the change time. , change details, etc. are input, this schedule pattern change processing is incorporated into the operation schedule held in the storage unit 14.

The execution schedule thus set in the storage unit 140RAM is constantly compared with the built-in clock by the central processing unit 10, and as a result, when the execution time comes, the changed schedule pattern is automatically sent. , is praised by the general AM of the terminal device TO record 1tfs32. The terminal device T then performs control according to this changed schedule pattern.

On the other hand, if it becomes necessary to directly control the equipment M without depending on the schedule pattern set in the center equipment [T], the input operation section 12 of the center equipment [C] When data necessary for control such as a terminal device number, equipment code, control content, and control time are input, this control processing is incorporated into the operation schedule held in the storage unit 14. As mentioned above, this schedule is always compared with the clock built in the central processing unit 10, so when the execution time comes, the communication control unit 1 sends the information to be selected from the terminal device Tt from the central processing unit 10. chipping,
As a result, the communication line #jiL is connected to the communication system t11g of the terminal device T to transmit control data, and the end copy processing unit 32 turns on the designated equipment MK according to this control data.・Perform OFF control. Furthermore, after that, the terminal processing unit 32 detects a response signal that is the result of the control, and transmits it to the [center device C] via the communication control unit U and the communication line.

Therefore, the central processing unit CP checks this response signal,
When it is determined that the control is being executed normally,
This information is output to the printing unit 18 to inform the operator and to keep a record thereof, and a color graphic is displayed on the display unit 16, and the process is completed. If this control process fails due to some kind of problem, the process 1-* is executed again, and if it still fails, an abnormality report is output as a control failure to the printing unit 18K [and a color graphic is displayed on the display unit 16]. Displays an abnormality and notifies the operator.

As explained above, in this embodiment, the center device C
is executing automatic entrainment processing according to the operation schedule, but in parallel with this, the center device C is always able to receive alarm signals from the terminal device T. Even if the center device C is executing some processing according to the operation schedule, if an alarm is received from the terminal device [T], the center device C immediately interrupts the processing and performs the failure alarm reception processing, which is the highest priority processing. It is supposed to be done.

In this process, an alarm signal from the terminal device T is received by the communication control section, the central processing section 10 determines the terminal device number, equipment type, failure state, etc., and the printing section 18 Outfoot of abnormality report, display 11s1
6, the abnormal state is displayed in color graphic form, and the details of the failure are stored in the memory fls14 as a failure history. It is set to K so that it can be managed.

By the way, among the alarm signals sent from the terminal device T in this way, there are warning signals such as ON/OI of the power switch and detection switch during maintenance work on the equipment M. Some items may be sent by mistake due to the condition being met.

However, if the operator judges this error 9 alarm signal while looking at the maintenance work schedule, prompt response will be lacking and the burden on the operator will be heavy.

Therefore, in this embodiment, maintenance work schedule information for equipment M can also be registered in advance in the operation schedule, and this allows erroneous alarm signals caused by maintenance work and malfunctions to be avoided. It is designed to automatically distinguish between real alarm signals and real alarm signals. Here, the maintenance work schedule information is data such as a terminal device number, equipment type, and maintenance date and time. As a result, if an erroneous alarm signal due to maintenance work is received, it is automatically invalidated, reducing unnecessary burden on the operator. There is no need to apply

Now, as already explained, the feature of the present invention is the line check process.

This line check process is carried out by the central processing unit 10 of the center device T.
An example of this process is shown in a flowchart in FIG.

When the process shown in FIG. 1 is started, input operation 812
Importing data such as the terminal device number and execution time necessary for the line check process input from the storage unit 1
The line check process schedule creation conditions as shown in (1) to 3) below, which are held in step 4, are taken in (step 2).

■).

(1) For each terminal device, the process should be executed at least once a day.

(2) A predetermined period for one terminal device.

For example, set the cycle to 1 month and execute it at a different time every day.

(3) Processing by the center device itC is distributed and executed on average throughout the day so that processing is not concentrated at a specific time.

After importing these data and creation conditions, the central processing unit 10
A predetermined line check processing schedule is created (step 2), and then it is added to the operation schedule and held in the RAMK of the time management section 14, thereby completing the pre-processing registration process.

As already explained, in this embodiment, the operation schedule held in the storage unit 14 is compared with the built-in clock by the central processing unit s10 (step ①).

Therefore, when the time comes to execute the line check process (step ■), the central processing unit 10 is stored in the storage unit 14.
The system extracts the line check processing data and issues an instruction to the communication control unit to connect the communication line (step ■). Next, it is confirmed that the communication line #]L has been successfully connected to the corresponding terminal device T (step 2). Once the connection is confirmed, send a data transmission request to the terminal device T in line 5.
(Step 0). The terminal device T receives this data transmission request via the communication control unit A, and in response, returns the current operating status of the equipment M and the sensor S (step 0). The central processing unit 10 of the center device C confirms that the status data of the equipment M and the sensor S has been sent back from the terminal device T (step O), and if the result is YES, the sent equipment M state data (step 0),
The central processing unit 10 compares the status data (step O) of the equipment M and the sensor S during the previous line check process. If they match, it is considered normal and the process goes to step (2). Returning, if there is a defect, a failure process is performed as an abnormality (step @). On the other hand, in the case where the communication line cannot be connected in step (2) or the data is not returned in the Stellar app, failure handling is performed according to each condition.

Therefore, according to this embodiment, from the center side to the terminal side,
Or, on the other hand, the equipment M and/or So/So on the terminal side.
Independently of data communication operations performed for control and monitoring, data communication operations are performed at a predetermined, almost constant, and sufficiently short cycle, and data transmission requests are checked. This means that the abnormality monitoring function can be performed reliably at all times.

Here, in the embodiment of FIG. 1, the meaning of using status data in the abnormality detection process of the communication function by step OK will be explained.

Note that the status data here refers to the equipment M on the terminal side.
This is abnormal state data indicating whether an abnormality has occurred in the sensor S or not.

In the embodiment shown in FIG. 1, the data that the center side requests from the terminal side may be step 0.As is clear, the data sent from the previous time and the data sent this time are checked to see if they match.
This is to check whether the data communication function is normal or not. Therefore, as far as this goes, any data can be transmitted.

However, if the above-mentioned abnormal state data is used as the data to be transmitted as in this embodiment,
Even if there is no abnormality in the data communication function, if an abnormality is detected from the equipment M or the sensor S, the result in step 0 will be NO. It is also possible to obtain a backup function in case the sensor S does not erode even if the sensor S is abnormal, and the reliability can be improved.

Note that t, which is not explained in the above implementation example, is
The process of reading out the memory section AMK of the terminal AT stored in the memory section 1** on the center device C side, and this RA
The process of rewriting the information stored in the MK from the seven-year-old C glue is also stored in the center display Co 114.
By adjusting the delay schedule, the temperature is also good, and this makes it possible to provide a particularly efficient control device for the upcoming holidays.

In addition, the above embodiment has the following drawbacks: 1. A look at the terminal device of ll1t, l? Since the KL-C is required to record information on the K-th Nasukekanboku in the operation schedule in advance, the processing for the 11th LK in the ward will be automatically carried out. In addition, since it is possible to centralize the results from just one unit, the burden on the operators who manage the center is reduced, and the number of mistakes made by the operators when entering the station is reduced. This has the effect that it is possible to reduce the amount of work or make it unmanned, and it is possible to achieve comprehensive labor savings for the monitoring station where the center device is installed and the monitored station where the terminal device is installed.

〔Effect of the invention〕

As explained above, according to the present invention, the data communication function between the center and the terminal side can be checked at all times, and the faults of the conventional technology can be eliminated and the abnormality monitoring function can be always performed reliably. , A8 remote monitoring ff1l
l II+ devices can be easily provided.

[Brief explanation of the drawing]

Figure WA1 is a diagram showing the operation of an embodiment of the remote monitoring +
Figure 3 is the center! [] is a pull diagram showing an example of a terminal device. C... Center device, T... Terminal device,
L...Communication line 1M...Equipment equipment, S
・・・・・・Sensor among equipment. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. Multiple terminal devices that control equipment such as power reception and substation equipment and air conditioning equipment installed in each predetermined unit, such as a building, according to a preset control schedule, and all of these terminals. In a remote monitoring and control device that includes a center device that is connected to the device via a communication line and that monitors the equipment and sets the control schedule, data between the center device and each of the terminal devices is provided. 1. A remote monitoring and control device comprising a transmission control means for performing a transmission operation almost periodically based on predetermined conditions, and configured to perform a line check based on the result of data transmission by the transmission control means.