JPS6124794B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic lighting control device that performs control operations when stopping and restarting power supply to the device in a device that centrally controls lighting devices.

In recent years, in order to eliminate unnecessary lighting from the standpoint of energy conservation, many devices have been seen that perform intensive blinking and dimming control, such as lighting time control and daylight usage control.

However, in this type of device, as a control operation in the event of a power outage, such as stopping and restarting the device power supply, the battery is backed up to protect program memory such as time control during a power outage, and when the power is restored, it is returned to the pre-power outage mode ( time control mode, manual control mode)
It is configured to return to .

For this reason, if a power outage occurs during the daytime while operating in manual control mode and the power outage is restored at night, the lights will remain on instead of off, making it impossible to obtain the necessary illumination.

This invention was made in order to eliminate the above-mentioned inconvenience.In the event of a power outage, the battery can be used to back up various settings such as time control programs and the memory that stores the time at the time of power outage, etc., and to recover from the power outage. In some cases, the length of the power outage is detected, and if it is within a certain period of time, the original mode is continued, and after the certain period of time, whatever the mode is, it is changed to the time-of-day control mode. It is an object of the present invention to provide an automatic lighting control device that can eliminate inconveniences in control operations when power is restored.

Embodiments of the automatic lighting control device of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing one embodiment of the invention. In FIG. This is a clock generator that generates pulses at a certain period.

The output of this clock generating section 3 is sent to a processing section 7 and a counter section 4.
is for integrating the clocks from the clock generator 3 during a power outage. The output of the counter section 4 and the output of the power failure detection section 5 are also sent to the processing section 7. The power outage detection unit 5 detects the stoppage of power supply to the device. Note that 6 is a power supply unit that supplies DC power to the device.

The processing section 7 is composed of a stored program type microcomputer, and the setting section 2,
Clock generation section 3, counter section 4, power failure detection section 5
It uses each output as input to generate blinking, dimming control signals, and display signals. The output of this processing section 7 is sent to the drive section 10, whereby the output of the drive section 1
0 is adapted to drive the luminaire of the lighting device.

The processing unit 7 also outputs the signal to the display unit 9, so that the display unit 9 displays the lighting status of the lighting device 1, a clock, etc.

In the event of a power outage, power is supplied from the battery 8 to the clock generating section 3, counter section 4, real time program of the processing section 7, memory section (not shown) for storing the current time, etc.

Next, the operation of the automatic lighting control device of the present invention configured as above will be explained. Setting section 2
When the processing section 7 reads the current time when the key switch is operated, the current time is displayed on the display section 9 by internal program processing, and clock operation is started by counting input pulses from the clock generation section 3.

Next, the time program is set by operating the key switch of the setting section 2, and the time control mode and manual control mode are also specified.

When the timer setting is completed, the timer operation is started by specifying the time control mode. That is, the computer of the processing unit 7 compares and matches the current time with the timer time, and if they match,
A control signal is output to the drive unit 10 to control the corresponding lighting equipment.

In addition, in the manual control mode, the setting section 2
The lighting equipment can be controlled to blink or dim at will by operating the key switch.

The above is the control operation which is the main operation of the automatic lighting control device of the present invention.Next, the operation during a power outage in the present invention will be explained.

If a power outage occurs during operation in manual control mode, the power outage detection unit 5 detects it and
Outputs a signal to. With this signal input, the processing unit 7
performs processing to save the storage memory such as immediate programs and current time, in preparation for power-off of the power supply unit 6.

When the power supply from the power supply section 6 is stopped, the battery 8 starts supplying power and backs up the memory section of the processing section 7, the clock generation section 3, and the counter section 4.

When the power outage is restored, the power supply from the battery 8 is stopped, and the power supply from the power supply section 6 is restarted.
At this time, the processing section 7 reads the count value of the counter section 4 and performs an addition process based on the time at the time of power outage occurrence saved in the memory section by the internal program.
Update the clock.

Further, the internal program determines the length of the power outage, and in one embodiment of the present invention, determines whether it is longer or shorter than 10 minutes.

Currently, if the power outage is shorter than 10 minutes, the pre-power outage mode will continue, and if it is longer, the control mode will be changed to time of day control.

As a result, as mentioned above, a power outage occurs in manual mode, and if the power outage lasts for 15 minutes, the system will go into time-of-day control mode when restarting. Furthermore, when the power is restored, the AM and PM indicators on the clock display are flashed to indicate the presence or absence of a power outage.

FIG. 2 is a timing chart showing an example of its operation, and FIG. 2a shows power outage and recovery;
FIG. 2b shows the blinking of AM and PM indications. Also in FIG. 2, the t ₃ timing is the threshold for determining the length of power outage, and the period (t ₁ - t ₃ ) is 10 minutes. This shows that if a power outage occurs at timing t ₁ and the power is restored at timing t ₂ , the original control mode will continue, and when it returns at timing t ₄ , it will switch to time control mode.

In this way, the power outage control mode continues and changes to time-of-day control mode after a certain period of power outage, so appropriate processing is automatically performed for long and short power outages. It can be done.

FIG. 3 is a flowchart showing the power outage processing routine of the processing unit 7, which includes a counter import operation 11 when the power is restored, a clock update 12 that updates the counter value to the clock, and an operation to determine whether the length of the power outage exceeds 10 minutes. 13, an operation for changing to the time control mode 14, and an operation for continuing the previous mode 15.

In the above embodiment, the power outage time length is determined to be 10 minutes, but this time is not limited to this and may be any time.

In addition, in the above embodiment, when the power outage exceeds a certain time, the time control mode is set, but the mode is changed to manual control mode, and the lighting equipment is controlled to turn on so as to obtain the minimum necessary brightness. It is also possible to do this.

As described above, according to the automatic lighting control device of the present invention, in a control device that blinks and dims lighting equipment according to the time and manual control mode, the device starts operating when the power to the device is cut off and a power outage occurs. , protects the memory by storing various device settings, control outputs according to the settings, time, etc. When a power outage returns from a backup battery, it detects the length of the power outage and if it does not exceed a certain period of time. We have installed a processing unit that is configured to continue the manual control mode at the specified time, and after a certain period of time, execute the time control mode or generate a specific control output in the manual control mode, so that the control operation at the time of power outage recovery is easy. It is possible to eliminate the inconvenience caused by

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of one embodiment of the automatic lighting control device of the present invention, FIG.
FIG. b is a time chart for explaining an example of the operation of the automatic lighting control device, and FIG. 3 is a flow chart showing a power outage processing routine of the processing section in the automatic lighting control device. DESCRIPTION OF SYMBOLS 1...Lighting device, 2...Setting section, 3...Clock generation section, 4...Counter section, 5...Power failure detection section, 6...Power supply section, 7...Processing section, 8...Battery, 9...Display section, 1
0...Drive unit. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A lighting device including a plurality of lighting fixtures connected to each circuit, a setting section having a key switch and performing settings for blinking, dimming control, etc. of the lighting device;
It has a power outage detection section that detects the presence or absence of a power outage, and a memory section that stores the settings of the setting section and the output according to these settings. A processing unit that continues the original time control mode or manual control mode of the lighting device if the time does not exceed a certain period of time, and changes to the time control mode or generates a specific control output of the manual control mode when a certain period of time is exceeded. , a drive for driving the lighting equipment using the output of the processing section, a battery for protecting the memory of the processing section when a power outage occurs, and a display section for displaying the control state of the processing section based on the output of the processing section. An automatic lighting control device comprising: