JPH07106030B2 - Centralized control device display method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a centralized control device for controlling the operation of a load connected to a terminal device based on a signal from a master device, and particularly to a predetermined value for indoor wiring. The present invention relates to a display method when the above current value flows.

(B) Conventional Technology Generally, such a conventional centralized control device is disclosed in JP-A-60
-There was a thing as described in 200736 gazette.
This publication describes an indoor load control device using a power line, the content of which detects a current value flowing through indoor wiring, and this current value indicates a predetermined value (current value at which a current breaker operates). When the number of loads is exceeded, the operation of some loads is stopped based on a predetermined priority order.

(C) Problems to be Solved by the Invention In the conventional techniques as described above, when the current value flowing through the indoor wiring exceeds a predetermined value, the operation of some loads is automatically stopped. However, there was an inconvenience to the user. For example, it is difficult to set the electric equipment that can be used next, because it is difficult to know how much room is left until the current value at which the current breaker operates and how much current value has flowed too much.

In view of such a problem, the present invention provides a display method capable of easily confirming the current value flowing in the indoor wiring and the current operating state of the centralized control device.

(D) Means for Solving Problems The present invention is directed to a plurality of terminals, respective loads whose operation is controlled by the respective terminals, and a master device which outputs a control signal to the plurality of terminals. And a current detection unit that detects the value of the current flowing through the indoor wiring to which the load is connected, and when the current value detected by this current detection unit exceeds a predetermined value, the operation of some loads is stopped. In the centralized control device, a display unit whose light emitting area changes according to the display signal of the master unit is provided, and the display value based on the current value is given to the display unit to display the current value. When the above is reached, the light emitting area portion of the display portion corresponding to the value of the current flowing through the load for stopping the operation is made to blink.

(E) Operation The display method of the centralized control device of the present invention configured as described above can display the current value flowing in the indoor wiring and, when the current value flowing in the indoor wiring exceeds a predetermined value, It is possible to display that the load is stopped by stopping the operation of the load and blinking the light emitting area section of the display section corresponding to the current value flowing in the load.

(F) Example An example of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram of a centralized control device using the method of the present invention,
1 and 2 are outdoor wiring and are connected to a utility pole or the like. Three
Is a current breaker, which interrupts the indoor wirings 4 and 5 when a current of a predetermined value or more flows. A to F are loads whose operation is controlled by the terminals 6 to 11. Reference numeral 12 denotes a master device, which is connected to the terminal devices 6 to 11 via a signal line 13. The master unit 12 outputs a signal to start or stop the operation of the loads A to F to the terminals 6 to 11. The parent device 12 also has a CT (current transformer) 14 that detects all the currents flowing through the indoor wirings 4 and 5, and the detected value of this CT 14 is stored in the microcomputer 15
To a current value data output section. Reference numeral 17 denotes an operation unit, which includes keys for starting and stopping the operation of the respective loads A to F, a key for setting the operating current value of the current breaker 3, a key for setting the priority order of the loads A to F, etc. Has become. Further, reference numeral 18 is a display unit, as shown in FIG.

In FIG. 2, reference numeral 19 denotes a light emitting surface, which divides the entire light emitting surface into small light emitting area portions l _{1 to} l ₃₀ . This light emitting surface 19 is controlled by the display signal from the microcomputer 15 so that each small light emitting area portion l ₁
Or in which l ₃₀ is turned on or off. The small light emitting area portions l _{1 to} l ₃₀ light up in a bar graph shape corresponding to the current value detected by the current detection portion 16. That is, when the current value is 20 [A], the small light emitting area portions l _{1 to} l ₂₀ are lit, and when the current value is 17 [A], the small light emitting area portions l _{1 to} l ₁₇ are lit. still,
By changing the color of light emitted only from the small light emitting area portion l ₂₀ , the current value at which the current breaker 3 operates is 20 [A].

FIG. 3 is a main part flowchart showing the operation of the microprocessor 15 shown in FIG. 1, and the following operation is performed.
First, when the power is turned on, the microcomputer 15 is activated and the initial setting by "initialization" is performed. Next, a key scan of the operation unit 17 is performed to input the operation state or setting state of the key. Next, the operation of the loads A to F is started or stopped based on this key operation. Next, in the operation of the previous step, it is judged whether or not the load with the flag is turned off (operation is stopped), and when the load is turned off, the flag of the load is deleted. Next, the current value detected by the current detection unit 16 is T
Enter as. In this embodiment, since the display and control are performed in units of 1 [A], the value of T is a rounded integer value. The setting of this minimum unit may be arbitrarily made according to the usage state. Next, it is judged whether or not there is a flag-loaded load, and if there is no flag-loaded load, the current value T
Based on the above, the small light emitting area portions l _{1 to} l _T are lit in a bar graph shape. At this time, “T ≧ 20”, and if the current value at which the current breaker 3 operates is exceeded, the operation of the lowest priority load among the operating loads is stopped, and this load is flagged. At the same time, the current value at this time is stored as T '= T and the process returns to.

When there is a load with a flag, it is first determined whether this load can be a duplication, and if it can be a duplication, the load is deleted and the flag is deleted. This judgment is made based on whether or not 20 [A] is exceeded when the rated current value of the load is added to the current current value. The rated current value of the load may be obtained from the difference between the current value before the load is stopped and the current value after the stop. When the load cannot return, the small light emitting area parts l _{0 to} l _T are turned on and the small light emitting area parts l _{T1 to} l _T are blinked.

When the operation control of the load is performed using the centralized control device configured as described above, the operation of the load may be performed by operating the key. For example, when a current value of 17 [A] flows due to the operation of the loads B, C, and D, the small light emitting area parts l _{1 to} l ₁₇ are turned on.
Next, if the key is operated so that the load A (rated 5 [A]) is operated, the load B (rated 7 [A rated] of the loads B, C, D and the load A that is currently in operation has the lowest priority. ]) Stop the operation. At the same time in which a small light-emitting area part l ₁₆ to l ₂₂ blinks.

(G) Effect of the Invention The present invention is a display method of a centralized control device, which comprises a master device and a terminal device and stops the operation of a part of the load when the value of the current flowing through the indoor wiring exceeds a predetermined value. In addition to providing a display unit whose light emitting area changes according to the display signal of (1), and giving a display signal based on the current value to the display unit to display the current value,
When the current value exceeds a predetermined value, the light emitting area of the display section corresponding to the current value that flows to the load that stops operation is blinked, so the current value that is currently flowing can be displayed and forced. The current value of the stopped load can be displayed by blinking.

[Brief description of drawings]

FIG. 1 is a schematic view of an apparatus using the method of the present invention, FIG. 2 is a front view of the display section shown in FIG. 1, and FIG. 3 is a main part flowchart showing the operation of the microcomputer shown in FIG. is there. 6 to 11 …… Terminal device, 12 …… Microcomputer, 19 …… Light emitting area section.

Claims (1)

[Claims] 1. A plurality of terminals, respective loads whose operation is controlled by the respective terminals, a master device which outputs a control signal to the plurality of terminals, and indoor wiring to which the loads are connected. In a centralized control device that has a current detection unit that detects the value of the current that flows in, and stops the operation of some loads when the current value detected by the current detection unit exceeds a predetermined value, Equipped with a display unit whose light emitting area changes according to the signal, the display signal based on the current value is given to the display unit to display the current value, and the operation is stopped when the current value exceeds a predetermined value. The display method of the centralized control device, characterized in that the light emitting area portion of the display portion corresponding to the current value flowing in the load is blinked.