JPH02143795A - load control device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a load control device that can centrally monitor and control loads such as lighting devices and air conditioners.

BACKGROUND ART Load control devices that centrally monitor and control loads such as lighting equipment and air conditioners have a display device that displays the control status of each load, and a display device that displays the control status of each load and controls each load individually by remote control. A central monitoring control panel is provided with a control device that can perform the following operations. This centralized monitoring control panel is installed, for example, in a manager's room or a side entrance, and the operation switch for each load can be operated by the employee in the room where that load is installed when arriving or leaving work. The remote control is realized by this.

It is desirable for such a load control device to prohibit undesired input operations caused by mischief or the like.

On the other hand, in hospitals, etc., for the convenience of visitors, a so-called graphic monitoring control panel is installed at the front entrance, where the operation switches are arranged on a schematic diagram of the building, corresponding to the arrangement of each load in the building. It is installed in a place with a lot of foot traffic, such as Therefore, in typical prior art, a transparent cover made of acrylic or the like is provided on the front surface of the central monitoring control panel to prevent the above-mentioned undesired input operations.

Problems to be Solved by the Invention In the prior art as described above, light from ceiling lighting or the like is reflected on the cover surface, resulting in poor visibility of displayed content. Furthermore, it is necessary to open and close the cover each time the operation switch is operated, resulting in poor operability and functionality. Furthermore, in order to prevent the above-mentioned undesired input operations, there are restrictions on the installation location of the central monitoring and control panel, or it is necessary to devise the shape of the central monitoring and control panel itself.

An object of the present invention is to provide a load control device that can reliably prevent undesired operations caused by mischief or the like, and has improved operability and functionality.

Means for Solving the Problems The present invention provides a load control device that remotely controls the driving states of a plurality of loads and includes input means for inputting control information and storage means for storing the input control information. In the load control device, the storage means stores information regarding a duration of a specific control state of the load control device, and the specific control state is maintained during the duration. .

According to the present invention, the load control device can remotely control the driving states of a plurality of loads by inputting control information from the input means. The input control information is also stored in storage means, which storage means also store information regarding the duration of a particular control state of the load control device. The load control device maintains the specific control state of the load control device during the duration period stored in the storage means.

Therefore, during the duration period, even if control information is input from the input means, the specific control state of the load control device is maintained unchanged.
By setting an operation prohibition period during which input operations are disabled, even if an undesired input operation is performed from the input means due to mischief, etc. during this operation prohibition period, malfunctions due to the input operation are ensured. can be prevented. In addition, by being able to prevent undesired input operations in this way, there is no need for a special structure such as a cover on the input means to prevent such input operations, and this allows the input means to be directly operated, improving operability. and functionality can be improved.

Embodiment FIG. 1 is a block diagram showing the overall configuration of a lighting control device 1, which is a load control device according to an embodiment of the present invention. This lighting control device [1 is generally configured to include a centralized monitoring control panel 2, control terminals 3 to 6, detectors 7.8, switches 9, and a monitoring control panel 10. These supervisory control panels 2, 10, control terminals 3 to 6, detectors 7.8, and switches 9 are interconnected by a signal line 11, and multiplex transmission as described later is performed via this signal &111. It will be done.

The centralized monitoring control panel 2 is installed at the entrance and exit of the building where the lighting control device 1 is used. The control terminals 3 to 6 are provided, for example, in each room, and the control terminals 3 to 5 are embedded, for example, in the ceiling, and the control terminal 6 is embedded, for example, in a wall.

These control terminals 3 to 6 can control lighting/extinguishing of lighting fixtures, which are loads, in units of groups consisting of one or more lighting fixtures.

The detector 7 includes a transmitter 7a that transmits a control signal for controlling the lighting 7' on and off of each of the lighting equipment, for example, by infrared rays, a receiver 7b that receives the signal from the transmitter 7a, and a receiver 7b that receives the signal. The control signal is sent to the central monitoring side flff.
i2, and a repeater 7c for transmitting data to i2. The detector 8 includes a daylight detector 8a and an interface device 8b that transmits the detection results of the daylight detector 8a to the central monitoring control panel 2. These detectors 7 and 8 are provided in each of the five rooms or in some rooms.

The switch 9 is provided in each room, and includes an individual switch 9a that individually controls turning on/off the group of lighting equipment, and a pattern switch 9b that controls turning on/off the group in a predetermined pattern. configured.

The monitoring control YG panel 10 is provided, for example, on each floor, and has a push button switch 13 attached on a schematic diagram of that floor. Light emitting diodes of two colors, green and red, for example, are embedded in this push button switch 13, and when the green light emitting diode is lit in each push button switch 13, the lighting of the room corresponding to that push button switch is activated. When a light fixture is on and a red light emitting diode is lit, the light fixtures in that room are turned off. In this way, it is possible to monitor the on/off status of the lighting fixtures in each room on that floor. Further, by operating the push button switch 13 outside the operation prohibited time, which will be described later, the switching state of the push button switch 13 is changed, and the lighting equipment can be switched between the on/off state.

The centralized monitoring control panel 2 receives control signals from these detectors 7.8 and switches 9, and controls the lighting/extinguishing of the corresponding lighting equipment via the control terminals 3 to 6. 10 receives the control signals of each control terminal device 3 to 61\ from the central monitoring control panel 2, which is the master device, and from the monitoring control panel 10, the input results input from the push button switch 13 are centrally monitored and controlled! 2. The centralized monitoring control panel 2 is composed of a panel switch section 21 and a control section 22, and a schematic diagram of each floor is drawn on the display panel 23 of the panel switch section 21, and on the schematic diagram, the above-mentioned two color light emitting lights are drawn. A push button switch 24 with a built-in diode is arranged.

FIG. 2 is a front view of the control section 22. The front panel of the control unit 22 includes a display panel 23 for displaying control information for each lighting device stored in the control unit 22.
, an indicator light 24 that displays an abnormality such as an abnormality in the lighting control device 1 or a short circuit in the signal line 11 , a card reader 25 for reading control information for each lighting device, a control information setting mode, etc. Selection switch 26 and numeric keypad 27
, an input key 28, a cursor movement key 29, and the like are arranged. Card reader 25 and each key 27
The keyboard 30 constituted by 29 constitutes an input means.

FIG. 3 is a block diagram showing the electrical configuration of the centralized monitoring control panel 2. As shown in FIG. This centralized monitoring control panel 2 includes the signal line 11
A signal input/output device 31 that inputs and outputs data between each control terminal device 3 to 6 and the detector 7.8 via A processing circuit 32 for deriving the data, a clock integrated circuit 33 that is provided in connection with the processing circuit 32 and performs a clock operation, and a read-only memory (abbreviated as , ROM) 34 and a random access memory (abbreviated as RAM) 35 that stores control information input from a keyboard 30 constituted by the card reader 25 and various keys 27 to 29 through an interface circuit 36. The panel switch section 21, the display panel 23 and the card reader 25
It consists of:

FIG. 4 is a diagram for explaining a transmission method of time division multiplex transmission of data performed via the signal line 11. Each control terminal 3-6 has an address number set in advance, and the central monitoring control panel 2, following the start signal S1,
An address signal S2 representing this address number is sent out, and a control terminal 3 corresponding to this address signal S2 is sent.
A control signal S3 representing control information of .about.6 is sent out. Upon receiving these signals 81-S3, each control terminal 3-6 sends out a reply signal S4. In this way, the control signal S3 for controlling the predetermined control terminals 3 to 6 is circulated and derived based on the detection results of the switch 9 and the detectors 7.8.

Address numbers are also set in advance for the detectors 7, 8 and the switch 9, and when the detection results of the detectors 7.8 change or the switch 9 is operated, these detectors 7.8 And central monitoring control from switch 9! A transmission request signal is sent to 12, and the central monitoring control panel 2 responds to this transmission request signal by addressing these detectors 7.8 and switches 9 and reading the changed data.

The lighting control device 1 configured as described above switches any lighting device to any pushbutton switch 13 based on control data read by the card reader 25 or data input from the keyboard 30 as described later. It is possible to control lighting/extinguishing in association with .24. In addition, the time period during which the lighting fixtures can be turned on/off using the switch 9 in each room can be set to any time period as the control time period, and the lighting fixtures will be turned on/off automatically. can be controlled. Furthermore, a time period in which input operations from the pushbutton switches 13 and 24 can be disabled, that is, the lighting control device 1 can be locked, can be set as an operation prohibited time period.

FIG. 5 is a diagram showing an example of writing control data for setting the control time period of each control terminal device 3 to 6 on the card 40 read by the card reader 25.

In this entry example, the address number of the selected control terminals 3 to 6 is ro 12J, and the control time period of these control terminals 3 to 6 is from 8:30 to 17:30.

On the other hand, in addition to such mark sheet type data input, data can also be input from the keyboard 30 for temporarily canceling or changing the control time period. At this time, by inputting a predetermined code number or the like, data input operation becomes possible, and the input procedure and input results are displayed on the display panel 23.

FIG. 6 shows a control data card 40 for setting an operation prohibition time period for disabling input operations from the panel switch section 21 and the pushbutton switches 13 and 24 of the supervisory control board 10.
It is a figure which shows the example of entry into.

In this entry example, the input operation from the push button switch 13.24 is set to be invalid during the period from 8:00 a.m. to 9:00 a.m.

The above-mentioned card 40 shown in FIG. 5121 and FIG. 6 is read by the operation shown in FIG. That is, the card 40 is read in step n1,
In step ri2, it is determined from the reading result whether there is any erroneous entry. In step “12,
If the entry is correct, the process moves to step rr3, the read data is stored in the RAM 35, and the process moves to step rr4. In step rr4, it is determined whether there is a card to be read next. If so, the process returns to step r11, and if not, the operation ends. In step rr2, if an incorrect entry has been made, the process moves to step r+4, where an error message is displayed on the display panel 23, and then the process returns to step n1.

FIG. 8 is a flowchart showing the input procedure using the keyboard 30 and display panel 23.

In step r111, the operator refers to the display on the display panel 23 and operates the selection switch 26 to select a mode such as setting a control time period or setting a prohibited operation time period. In step n12, the cursor movement key 29 is operated to move the cursor to the position where the control data displayed on the display panel 23 should be set or changed, and the data to be set or changed is input using the numeric keypad 27. . In step rr 13, it is determined whether an incorrect input has been made, and if not, in step rr 14, the input data is stored and the process returns to step 12. step rr
If an incorrect input is made in step 13, an error display is performed in step n15, and step rt1
Return to 2.

FIG. 9 is a flowchart for explaining the operation of setting and canceling the operation prohibited state in the processing circuit 32, and this operation is performed, for example, every minute.

In step r121, it is determined whether the current time is within the control time zone set by the card 40 shown in FIG. When this happens, the process moves to step r122. In step n22, it is determined whether or not an operation prohibition time zone is set at the current time, for example, by the card 40 shown in FIG. is set to "true" and moves to step 124. In step rr22, if it is outside the operation prohibited time zone, the process moves directly to step rI24.In step n24, it is determined whether or not the operation prohibited time zone has ended at the current time. If not, the process returns to step rI21 to continue the operation prohibition state, and if so, the operation prohibition flag is set to "false" in step n25, and the process returns to step rr21.

FIG. 10 shows the panel switch section 21 and the monitoring control panel 1.
12 is a flowchart for explaining the operation when the 0 push button switches 13 and 24 are operated. step r+
When the push button switch 13°24 is operated in step 31, the process moves to step rL32, where it is determined whether the operation prohibition flag is "false", and if so, that is, if it is outside the operation prohibition time period, the process moves to step r133. Move to.

Step "In Kou 33, the operated push button switch 13
, 24 address numbers are read, and step n 3
At step 4, the control state of the lighting fixture corresponding to the address number is detected, the control state is inverted, and the display of the light emitting diode in the operated push button switch 13.24 is inverted, and the process returns to step n31. Said step r
In i32, if the operation prohibition flag is "false", the process returns directly to step n31, and the control state of the lighting equipment is maintained as it is.

In this way, in the lighting control device 1 according to the present invention, it is possible to set an operation prohibition period for disabling input operations from the pushbutton switches 13 and 24, thereby reliably preventing undesired operations caused by mischief or the like. can do.

Additionally, this eliminates the need to provide a cover or the like as described in the prior art section on the panel switch section 21 of the centralized monitoring control panel 2 or the front of the monitoring control panel 10, so that the control status of the load can be checked with good visibility. In addition, it is no longer necessary to open and close the cover each time the push button switch 13 or 24 is operated, and operability and functionality can be improved.

In the above-mentioned embodiment, a time period in which the input operation from the push button switch 13.24 can be invalidated is set, but in another embodiment of the present invention, the detection result of the detector 8 can be invalidated During that period, the illuminance of the lighting equipment may be configured so that it does not change, and the buzzer that generates the alarm sound may be configured to stop sounding to prevent the buzzer from malfunctioning due to mischief or the like. Often, the management of the load control device can be reduced in this way.

Effects of the Invention As described above, according to the present invention, the load control device maintains the specific control state for the duration of the specific control state of the load control device stored in the storage means. Therefore, even if control information is input from the input means during the duration period, the specific control state of the load control device is maintained unchanged.

Therefore, by setting the above-mentioned duration as an operation prohibition period in which input operations are invalid, even if an undesired input operation is performed as a prank or the like during this operation prohibition period, a malfunction due to the input operation will not occur. can be reliably prevented. Moreover, by being able to prevent undesired input operations in this way, there is no need for a special structure such as a cover on the input means to prevent such input operations, and this allows the input means to be directly operated, improving operability and Functionality can be improved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the overall configuration of a lighting control device 1 according to an embodiment of the present invention, FIG. 2 is a front view of the control unit 22 of the central monitoring control panel 2, and FIG. 3 is a front view of the central monitoring and control panel 2. FIG. 4 is a block diagram showing the electrical configuration of the control terminal 3-6. FIG. 4 is a diagram for explaining the data transmission method carried out via the signal line 11. FIG. card 4
FIG. 6 is a diagram showing an example of filling in the card 40j for setting the operation prohibited time period, and FIGS. 7 to 10 are flowcharts for explaining the operation. be. 1...Lighting control device, 2...Intensive monitoring system (1 panel, 3
-6... Control terminal, 7.8... Detector, 9...
Switch, 10... Monitoring control panel, 11... Signal line,
13.24...Push button switch, 21...Panel switch section, 22...Control section, 23...Display panel, 2
5... Card reader, 26... Selection switch, 30
...Keyboard, 31...Signal input/output device, 32.
...Processing circuit, 33...Clock integrated circuit, 34...
ROM, 35...RAM, 36...Interface circuit, 40...Card, L...Lighting equipment agent Patent attorney Number of strokes Keiichi 1st diagram

Claims (1)

[Scope of Claims] A load control device comprising: input means for remotely controlling the drive states of a plurality of loads and inputting control information; and storage means for storing the input control information. A load control device, wherein information regarding a duration of a specific control state of the load control device is stored, and the specific control state is maintained during the duration.