JPH01253194A - Lighting control system - Google Patents

Abstract

PURPOSE:To obtain a proper illumination without requiring man's hand by measuring light flux of a lighting apparatus which is lighted in accordance with a time schedule, comparing this with a standard light flux memorized in a memory, and controlling for dimming if illumination is low. CONSTITUTION:A main panel 1 processes set data for an operation switch, a time scheduler, a program card, etc., and transmits on/off data and dimming data for lighting apparatus 61-6n. A dimming control terminal 2 transmits dimming data, and receives dimming data to form dimming control signals for controlling dimming for the apparatus 61-6n. An on/off control terminal 3 receives on/off control data and puts a power circuit 5 on/off. In this constitution, if the main panel 1 transmits on/off and dimming data based on settings of the time scheduler, the apparatus 61-6n get on/off, and are controlled to be dimmed continuously.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a lighting control system that allows dimming of lighting equipment.

(Prior Art) Conventionally, there have been lighting control systems that use daylight sensors to adjust the light of lighting equipment to provide appropriate lighting.

(Problem to be Solved by the Invention) With such a lighting control system, it is possible to lower the lighting level to obtain an appropriate illuminance in daylight, that is, when the sun is strong. However, a system that measures the illuminance of lighting equipment Therefore, it is not possible to solve the problem of luminous flux deterioration over time of lighting equipment, which has recently increased due to the demand for intelligent and amenity-oriented lighting equipment. In order to solve the problem of such a decrease in luminous flux, it is necessary to measure the luminous flux of a lighting fixture and, if the illumination intensity has decreased, to control the dimming of the lighting fixture to obtain an appropriate illuminance. Such work requires manpower and effort for illuminance measurement and dimming control.

On the other hand, when performing such illuminance settings, it is preferable to perform the above-mentioned work on holidays or at night, since illuminance measurement cannot be performed properly due to the influence of residents and non-target illumination. However, a problem arises in that workers' wages become higher on holidays or at night.

The present invention has been made in view of the above problems, and its purpose is to provide a lighting control system that can automatically and accurately set appropriate illuminance.

[Structure of the Invention] (Means for Solving the Problems) The lighting control system of the present invention includes one or more terminal devices that control the light of one or more lighting devices, and the lighting devices or terminal devices. a lighting command unit that lights up the lighting equipment by generating a lighting command signal to the lighting equipment; and a lighting command unit that is connected to the terminal equipment in correspondence with one or more terminal equipment for detecting the luminous flux from the lighting equipment. One or more sensors installed under the lighting equipment that detect the luminous flux from the lighting equipment, a memory unit that stores reference luminous flux data, and a comparison between the output of the sensor and the luminous flux data of the memory unit. a control unit that outputs a dimming signal to the terminal device, a time scheduler that outputs a lighting start signal that causes the lighting command unit to output a lighting command signal at a predetermined time set in advance by a program, and the time scheduler. The present invention is characterized by comprising a delay timer that causes the control section to perform the comparison operation after a predetermined period of time after receiving the lighting start signal.

(Function) With the above configuration, if the predetermined time of the time scheduler is set to night or a holiday, and the predetermined time of the delay timer is set to the time when lighting of the lighting equipment is stable, for example, 30 minutes in the case of a fluorescent lamp, At night or on holidays, a lighting start signal is output from the time scheduler to a lighting command section, and the lighting command section outputs a lighting command signal to a terminal or a lighting fixture, and the lighting fixture is turned on.

At the same time, a delay timer operates in response to a lighting start signal from the time scheduler. During the delay timer setting 1, that is, after 30 minutes, for example, when the lighting of the lighting fixture becomes stable, a drive signal is output from the delay timer to the control section, and the control section is driven.

At this time, the control unit compares the output of the sensor that detects the luminous flux of the lighting equipment with preset reference luminous flux data, and causes the terminal device to perform dimming control so that the lighting equipment outputs an appropriate luminous flux. Outputs the control signal to the terminal.

In this way, since appropriate illuminance setting control can be performed automatically at the date and time determined by the time scheduler, residents (including the person taking measurements) are not affected by non-target illumination.

Further, since the above control is performed after the luminous flux of the lighting fixture is stabilized by the delay timer, there is no possibility of processing erroneous luminous flux.

Therefore, appropriate illuminance setting control can be performed automatically.

(Example) An example of the present invention will be described with reference to FIGS. 1 and 2. This embodiment is a lighting control system that has a plurality of lighting zones such as a building, and centrally manages the lighting control of these zones.

Reference numeral 1 denotes a platform for central control, and a dimming control terminal 2.1 is connected via a transmission line 71. An on/off control terminal 3 is connected. These dimming control terminals 2. The on/off control all terminal device 3 may actually be each functional part of the configuration of one terminal device 4, or may have separate configurations. This dimming control terminal 2 is provided corresponding to a predetermined number of lighting fixtures 61 to 6n forming one control zone, and another on/off control terminal 3 is provided corresponding to the lighting fixtures of the control zone (not shown). is provided. On the other hand, the lighting fixtures 61 to 6n each have an N source terminal and a dimming control terminal, and among these, the dimming control terminal is connected to the first output terminal of the dimming control terminal 2 via a transmission line 72, The power terminals are individually connected to each output terminal of the on/off control terminal 3 via a transmission line 73.

Here, the platform 1 processes setting data of operation switches (not shown), a first time scheduler, a program card, etc., and transmits on/off control data and dimming data of the lighting devices 61 to 6n.

Further, the dimming control terminal device 2 is for transmitting dimming data. Further, the dimming control terminal 2 receives the dimming data, generates a dimming control signal for each control zone, and applies the signal to the dimming control terminals of the lighting fixtures 61 to 6n via the transmission line 72. Further, the on/off control terminal 3 receives the on/off control data and controls on/off the power circuits in which the power terminals of the lighting fixtures 61 to 6n are connected to the lighting power source 5, respectively. With this configuration, when the foundation 1 transmits the on/off control data and/or dimming data to which the address of the lighting equipment is added based on the setting data of the first time scheduler etc., the addressed on/off control terminal 3 reads this and turns on and off the power supply circuits of the lighting devices 61 to 6n, and the dimming control terminal 2 reads the dimming data and continuously performs rectangular wave dimming control with a constant cycle and varying duty ratio. For example, by generating the lighting equipment 61
- Add all at once to 6n. The dimming signal may be based on PWM or phase control. As a result, blinking control and integrated dimming control of the lighting fixtures 61 to 6n in one control zone set corresponding to a predetermined lighting area are performed. The blinking and dimming control of the lighting equipment is also possible using the operation switch on the foundation 1. In addition to the aforementioned operation switch, first time scheduler, and setting section using a program card, the above-mentioned soil platform 1 has a configuration for setting an appropriate illuminance, and this configuration is shown in FIG. be.

Reference numeral 11 denotes a second time scheduler which integrates the time and sends a lighting start signal at a predetermined time, such as a holiday or at night.

12 receives this lighting start signal and outputs a lighting command signal to the on/off control terminal 3. At this time, the lighting equipment is turned on at an appropriate dimming level that has been set in advance.

A delay timer 13 outputs a drive signal approximately 30 minutes after receiving the lighting start signal from the second time scheduler 11 until a lighting fixture, such as a fluorescent lamp, has stabilized. If the light source of the lighting equipment is not a fluorescent lamp, set the delay timer to the time it takes for the light source to stabilize.

Reference numeral 14 denotes an illuminance sensor that is provided for each control zone and is grounded, for example, to the illuminated surface of the lighting fixture.

Reference numeral 15 denotes a memory section in which proper illuminance data is stored manually or by a card.

Reference numeral 16 denotes a control section, which includes a comparison calculation means 17 and a control signal generation section 18. The comparison calculation means 17 compares and calculates the detection output of the sensor 1.4 and the illuminance data of the memory section 15 using the drive signal of the delay timer 13, and when the sensor detection output is lower than the illuminance data, the difference is calculated. A control signal for correcting the appropriate dimming level is generated by the control signal generating section 18 and sent to the transmission line 71 to increase the dimming level of the dimming control terminal 2.

The second time scheduler 11 may be integrated with the first time scheduler.

In this way, a decrease in the luminous flux of the lighting equipment is automatically corrected and an appropriate illuminance setting can be performed.

Although only a lighting command signal is output from the command unit 12 of this embodiment, a signal that causes the dimming control terminal 2 to turn on the entire light may also be output. In this case, the memory unit 15 stores luminous flux data when the lighting equipment is fully lit before the luminous flux decreases. Then, the comparison calculation means 17 compares the luminous flux output A of the sensor 14 and the luminous flux data B of the memory 15. If the luminous flux of a lighting fixture must be 0.7A in order to obtain the appropriate illuminance (assuming that 0.7A is obtained when the lighting fixture is dimmed to 70% of the total light before the luminous flux decreases),
At this time, the dimming signal that must be output to the dimming control terminal 2 is 0.7 A/B times the full-light lighting signal. By generating this dimming signal in the control signal generator 18 and outputting it to the dimming control terminal 2, the lighting fixture can maintain a luminous flux of 0.7A. The reason why the dimming signal can be calculated in this way is that the ratio of the luminous flux of the lighting device before and after the luminous flux is reduced is approximately the same regardless of the lamp input. The former comparison calculation means 17 may simply compare the data in the memory 15 and the output of the sensor 15. In this case, the control signal generator 18 sequentially outputs a very slight brightening signal until the data in the memory 15 and the output of the sensor 15 become the same value, and each time the sensor 14 detects the luminous flux, the comparison calculation means 17 It is input into .

[Effects of the Invention] The lighting control system of the present invention includes a time scheduler that turns on the lighting equipment at a set time, and operates a delay timer at the set time of the time scheduler, and after a predetermined time, the lighting equipment is turned on from a sensor. The control unit compares and calculates the illuminance detection output from the lighting with the reference illuminance data stored in the memory in advance, and outputs a control signal to the terminal to obtain the appropriate illuminance. On holidays, it is possible to control the appropriate illuminance while the lighting equipment is stably lit. Therefore, it is possible to accurately control the illumination intensity without being influenced by residents or non-target lighting, and because it is possible to avoid controlling the illuminance when the lighting equipment is unstable.

Furthermore, all of these controls can be performed automatically, so there is no need for manpower on holidays or at night.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a block diagram roughly showing the main parts of the above in detail. 61-6n...Lighting equipment, 2...Dimmer control terminal device. 14...Sensor, 12...Lighting command unit, 15...
memory section. 16...Control unit, 11...Time scheduler. 13...Delay timer.

Claims (1)

[Claims] (1) A terminal device to which a lighting fixture is connected and which performs dimming of the lighting fixture; a sensor that detects the luminous flux from the lighting fixture; a lighting command unit that lights the lighting fixture; and a storage unit that stores reference luminous flux data. a memory unit; a control unit that compares the output of the sensor with the luminous flux data of the memory unit and outputs a control signal to the terminal; a lighting start signal that causes the lighting command unit to output a lighting command signal at a predetermined time; A lighting control system comprising: a time scheduler that outputs; a delay timer that operates in response to the lighting start signal and outputs a drive signal that drives the control unit after the operation is completed.