JPH11259128A - Load monitoring and control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a load monitoring and control system capable of automati cally discriminating abnormality in the control of a load equipment by previous ly storing various data related to the control of the load equipment and easily reading out these data in the maintenance/inspection of the system. SOLUTION: A load controller 1 is provided with an operation data storing means 14A for storing operation data transmitted from a load operation terminal equipment 2, a controlled result data storing means 14B for storing controlled result data returned from the equipment 3 at the time of completing the control of a load equipment 4, a comparing/discriminating means 11 for mutually comparing/discriminating data stored in respective means 14A, 14B, and a control abnormality data storing means 14C for storing control abnormality data when the operation data of the same load controlling terminal equipment compared/discriminated by the means 11 does not correctly correspond to the controlled result data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a load monitoring control system suitably used for controlling lighting equipment and air conditioning equipment in a building or the like.

[0002]

2. Description of the Related Art Recently, load monitoring and control systems have been widely used in buildings and the like to control load devices such as lighting devices and air conditioners. In this system,
As shown in FIG. 7, a load operation terminal 200 and a plurality of load control terminals 300 are connected to the load control device 100 via a multiplex transmission line L1.
A load device 400 such as a lighting device or an air conditioner is connected to 00, and a unique address is assigned to each.

The load control device 100 includes a main CPU 101 for performing data processing, a sub-CPU 102 for monitoring and controlling transmission signals, a transmission driver / receiver 103 for transmitting and receiving signals to and from a transmission line, a processing program and data processing. A storage unit 104 for storing results is provided, and these are connected via a CPU bus 105. Also,
The load operation terminal 200 is provided with switches 201, 201 corresponding to the respective load control terminals 300. When an operator operates any of the switches 201, 201, the load control corresponding to the switch is performed. Terminal 30
The operation data designating the address 0 is the multiplex transmission line L
1. The data is transmitted to the sub CPU 102 of the load control device 100 via the transmission driver / receiver 103.

[0004] Upon receiving the operation data, the sub CPU 102 generates control data for controlling the load control terminal 300 specified by the operation data, and transmits the control data via the transmission driver / receiver 103 and the multiplex transmission line L1. Since the control data is transmitted to the corresponding load control terminal 300, the load control terminal 300 receiving the control data controls the load device 400 according to the control data,
When the control is completed, the control result data is transmitted to the sub CPU 10 via the multiplex transmission line L1 and the transmission driver / receiver 103.
Then, the sub CPU 102 confirms this control result data and clears it.

[0005]

In such a load monitoring and control system, electrical noise generated from equipment installed in the vicinity may be superimposed on the multiplex transmission line or may be caused by abnormal connection of the multiplex transmission line. As a result, a control abnormality of the load device often occurs. However, in the above-described conventional load monitoring and control system, operation data and control result data when a load device control abnormality occurs are not managed by the load control device. At present, it is impossible to analyze the cause of the control abnormality at an early stage by referring to the above data, and to take measures for preventing the occurrence of the control abnormality.

[0006] The present invention is proposed in view of the above circumstances. After the operation data transmitted from the load operation terminal and the control of the load device are completed, the load control terminal transmits the operation to the load control device. By storing the returned control result data, determining a match or mismatch between them, and providing a load monitoring control system capable of storing as a control abnormal data when a mismatch is detected, It is an object of the present invention to provide a load monitoring and control system that can easily read out these data and analyze the cause of an abnormality at the time of system maintenance and inspection or when a trouble occurs.

[0007]

According to a first aspect of the present invention, there is provided a load monitoring and control system, comprising: a load control device having a load control device connected to a load device via a multiplex transmission line; And a load control terminal connected to the load control terminal, the operation of the load control terminal is monitored by the load control device, and the load control system is configured to control the load device connected to the load control terminal. Is operation data storage means for storing operation data transmitted from the load operation terminal, and a control result for storing control result data returned from the load control terminal when the control of the load device is completed. The same load control is performed by the data storage means, the comparison determination means for comparing and determining the data stored in the operation data storage means and the data stored in the control result data storage means, respectively. When the control result data and comparing the determined operation data to the terminal device does not correspond correctly or has a configuration in which a control abnormality data storage means for storing control abnormal data.

Here, the operation data storage means, the control result data storage means, and the control abnormal data storage means are configured by dividing a part of the RAM constituting the storage section. Further, these data storage means may be configured by dividing one ring buffer into a plurality of memory boxes. 3. The load monitoring and control system according to claim 2, wherein the load control device includes a timing unit, and adds the time data at that time to the operation data transmitted from the load operation terminal device. It is configured to be stored in the storage means.

In the load monitoring control system according to the third aspect, the load control device is provided with a time measuring means, and when receiving control result data indicating control completion from any one of the load control terminals, the control is performed. The time data at that time is added to the result data, and the result data is stored in the control result data storage means. In the load monitoring and control system according to the fourth aspect, when a predetermined operation is performed, the load control device selectively selects the data contents stored in the operation data storage unit, the control result data storage unit, and the control abnormal data storage unit. And / or recording and displaying means for displaying and / or recording.

In the load monitoring control system according to the present invention, when the load control device receives a data transfer request from an external device, the load control device transmits at least one of the operation data, the control result data, and the control abnormality data. Communication means for transferring the data to an external device is further provided. Here, as the external device, a device having a data transmission function such as a personal computer can be applied, and a public line or a data transmission line is used as a data transmission line, and a wireless system such as an infrared ray or a radio signal is used. Data transmission.

In the load monitoring control system according to the present invention, the load device is a lighting fixture, and the load operation terminal is configured as a lighting switch.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a system configuration diagram showing an example of the configuration of the load monitoring control system of the present invention. In this example, the load control device 1 includes a multiplex transmission line L1
, A load operation terminal 2 and a plurality of load control terminals 3 are connected, and the load control terminal 3 is connected to load devices 4 such as lighting devices and air conditioning devices, each of which has its own unique device. Address is assigned.

Here, the load control device 1 includes a main CPU 11 which performs data processing and controls each unit, and a multiplex transmission line L1.
, A sub-CPU 12 for controlling transmission and reception of various data to and from the load control terminal 3, a transmission driver / receiver 13 for transmitting and receiving various data via the multiplex transmission line L1, a RAM and a ROM, etc. A storage unit 14 for storing various programs necessary for the operation of the load control device 1 is connected by a CPU bus 15. The comparison and determination unit is configured by the main CPU 11, and the operation data storage unit. The control result data storage means and the control abnormality data storage means
Is divided and configured as a data buffer.

Although these data buffers can be configured using a ring buffer, a single ring buffer can also be configured by being divided into a plurality of memory boxes. Further, the load control device 1 includes a clock unit 16 that constitutes a clock unit, a recording unit 17 that includes a printer,
And a display operation unit 18 including various switch means.

The recording section 17 and the display / operation section 18 constitute recording / display means of the present invention, and the operation data, control result data, and control abnormal data selected by the operation of the display / operation section 18 are recorded on recording paper or the like. It can be printed out or displayed on an LCD or the like. Reference numeral 19 denotes a communication unit constituting communication means of the present invention, which is connected to an external device such as a personal computer via a data transmission line L2, and allows an operator to transmit data using a predetermined command from the external device. When the selected command is transmitted, the load control device 1 transfers the operation data, control result data, and control abnormal data stored in the storage unit 14 via the data transmission line L2.

In this example, the communication unit 19 and the external device are connected by a data transmission line L2, and the data transmission line L2
2 shows a configuration for transferring data, the present invention is not limited to this.
Alternatively, a configuration may be adopted in which wireless transfer is performed using infrared rays, radio signals, or the like. One load operation terminal 2 is provided with a plurality of switch means 21 and 21 corresponding to each load control terminal 3, and the operator operates the switch means 2.
By operating the terminals 1 and 21, the operation data specifying the address of the corresponding load control terminal 3 is transmitted to the control and monitoring device 1 via the multiplex transmission line L1.

Hereinafter, the operation of the load monitoring and control system will be described. FIG. 2 is a flowchart showing the basic operation of the load control monitoring system of the present invention. (Step 10
0-112). First, when the operator operates the load operation terminal 2, the load operation terminal 2 transmits the operation data specifying the address of the corresponding load control terminal 3 to the multiplex transmission line L1.
To the sub CPU 12 of the load control device 1 (100).
Receives the operation data via the transmission driver / receiver 13 (101).

As shown in FIG. 3, the operation data includes a serial number for identifying the data, the address of the load control terminal 3, and the control content of the load device 4. Here, the serial number indicates the order in which the load operation terminals 3 were operated. In the drawing, “00AF” is shown as a serial number, “0F” as an address, and “A0” as a control content using hexadecimal numbers.

When receiving the operation data, the sub CPU 12 transfers the received operation data to the main CPU 11 (102). Then, the main CPU 11 sets the clock 16
The time data is read out, added to the transferred operation data, and stored in the operation data buffer 14A (103). FIG. 4 shows the operation data buffer 14A.
, The time data and the operation data stored therein are shown.

In the figure, "1028" is used as time data.
“0120” is shown, indicating that the date and time when the load operation terminal device 2 was operated is “October 28, 1:20”. Next, the sub CPU 12 decodes the operation data received from the load operation terminal 2 and refers to the control table prepared in the storage unit 14 in advance to change the load control terminal 3 designated by the operation data. Control data (control command) for control is generated and transmitted to the multiplex transmission line L1 via the transmission driver / receiver 13 (10).
4).

On the other hand, the load control terminal 3 receiving the control data decodes the control data, controls the specified load device 4 (105), controls the load device 4, and returns the control result. The data is returned to the multiplex transmission line L1 (10
6), the sub CPU 12 of the load control device 1 receives the control result data via the transmission driver / receiver 13 (107).

The control result data notifies the completion of the control. As shown in FIG. 5, the serial number for operating the load operation terminal 2, the address of the load control terminal 3, the control of the load The result is composed of: In the drawing, “00AF” is used as a serial number, “0F” is used as an address, and “A0” is used as a control result, using hexadecimal numbers.

The sub CPU 12 of the load control device 1 having received the control result data from the load control terminal 3 transfers the control result data to the main CPU 11 (108). Then, the main CPU 11 reads the time data from the clock unit 16, adds the time data to the transferred control result data, and stores it in the control result data buffer 14B (1).
09).

FIG. 6 shows a control result data buffer 14A.
2 shows the time data and the control result data stored in FIG. In the figure, “102801” is used as time data.
20 "is shown, indicating that the date and time when the load device 4 was controlled is" October 28, 1:20 ".

Subsequently, the main CPU 11 outputs the data from the operation data buffer 14A and the control result data buffer 14B.
Read operation data and control result data of the same serial number,
By comparing the control content included in the operation data with the control result included in the control result data, it is determined whether the control is performed without error. (110) As a result of the comparison by the main CPU 11, when it is confirmed that the control is performed normally, the main CPU 11 clears or leaves the operation data and the control result data, and determines that the control is abnormal. In the case, the main CPU 11
Generates control abnormal data and stores the control abnormal data in the control abnormal data buffer 14C. (111, 11
2)

[0026]

As can be understood from the above description, in the load monitoring and control system according to the first aspect, the load control device includes an operation data storage unit, a control result data storage unit, and a data comparison unit for determining a control abnormality. Since the control abnormality data storage means is provided, the load control device determines whether or not the corresponding load device is correctly controlled every time the load operation terminal is operated, and when a control abnormality occurs, ,
Since the control abnormality data is stored, the operator can easily analyze the cause of the control abnormality of the load device by reading the data when a trouble occurs in the system or during maintenance and inspection.

[0027] In the load monitoring and control system according to the second and third aspects, the load control device may control the actual time when the operation data is received from the load operation terminal or the actual time when the control result data is transmitted from the load control terminal. You can check the time.
Also, since the real time is added to the operation data and the control result data on the main CPU side of the load control device, it is not necessary to add the real time on the load operation terminal side and the load control terminal side. As the load operation terminal and the load control terminal, those having conventional configurations can be used.

[0028] In the load monitoring and control system according to the fourth aspect, the load control device, when a predetermined operation is performed,
Record display means for selectively displaying and / or recording the data contents stored in the operation data, the control result data, and the control abnormality data is provided. It can be easily confirmed by displaying it on a display unit or printing it on recording paper.

In the load monitoring control system according to the fifth aspect, when the load control device receives a data transfer request from an external device, at least one of operation data, control result data, and control abnormality data is provided. Communication means to transfer the data from the external device to the external device, even if the operator is away from the load control device,
These data contents can be confirmed, which is convenient.

In the load monitoring control system according to the sixth aspect, the load equipment is a lighting fixture, and the load operation terminal is configured as a lighting switch, so that a lighting monitoring control system exhibiting the effects of the present invention is provided. can do.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram showing an example of a configuration of a load monitoring control system of the present invention.

FIG. 2 is a flowchart showing a basic operation of the load monitoring control system of the present invention.

FIG. 3 is a diagram illustrating an example of operation data.

FIG. 4 is a diagram showing an example of operation data to which time data is added.

FIG. 5 is a diagram illustrating an example of control result data.

FIG. 6 is a diagram illustrating an example of control result data to which time data is added.

FIG. 7 is a system configuration diagram showing a conventional load monitoring and control system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Load control device 2 ... Load operation terminal device 3 ... Load control terminal device 4 ... Load device 11 ... Main CPU 14 ... Storage part 14A ... Operation data storage means 14B ... control result data storage means 14C ... control abnormal data storage means 16 ... clock section 17 ... recording section 18 ... display operation section 19 ... communication section L1 ... multiplex transmission line

Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04Q 9/02 H05B 37/02 G H05B 37/02 H04L 11/00 310D

Claims (6)

[Claims] A load control terminal connected to a load control device via a multiplex transmission line and a load control terminal, and operation of the load control terminal is monitored by the load control device. And a load monitoring control system configured to control a load device connected to the load control terminal, wherein the load control device stores operation data transmitted from the load operation terminal. Means, control result data storage means for storing control result data returned from the load control terminal device when control of the load device is completed, and operation data storage means, control result data storage means. A comparison discriminating means for comparing and discriminating the corresponding data stored in each of them; and an operation data which is compared and discriminated against the same load control terminal by the comparison discriminating means. A load monitoring and control system having a control abnormal data storage unit for storing control abnormal data when the control result data does not correspond correctly. 2. The load control device according to claim 1, wherein the load control device includes a timing unit, and the operation data transmitted from the load operation terminal device includes:
A load monitoring control system configured to add time data at that time and store the data in the operation data storage means. 3. The load control device according to claim 1, wherein the load control device includes a timing unit. When control result data indicating control completion is received from one of the load control terminals, the control result data is included in the load control device. A load monitoring control system configured to add time data at that time and store the data in the control result data storage means. 4. The load control device according to claim 1, wherein when a predetermined operation is performed,
A load monitoring control system further comprising a record display means for selectively displaying and / or recording data contents stored in the operation data storage means, the control result data storage means, and the control abnormal data storage means. 5. The load control device according to claim 1, wherein the load control device receives the operation data, the control result data, and the control data when receiving a data transfer request from an external device.
A load monitoring and control system further comprising a communication unit for transferring at least one of the control abnormal data to the external device. 6. The load monitoring and control system according to claim 1, wherein the load device is a lighting device, and the load operation terminal device is configured as a lighting switch.