JP2001345189A - Illuminating lamp control system and control method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an illuminating lamp control system and an illuminating lamp control method capable of making illuminating lamp lighting time different according to an ambient temperature. SOLUTION: This illuminating lamp control system includes a main controller 8 including a microprocessor for controlling the whole system, a power source control part 6 for outputting controlled AC source voltage by controlling a power transformer 2 according to a control signal from the main controller, a bypass switch 3 for outputting an input power source by bypassing the power transformer when turned on by being turned on and off in response to the control signal from the main controller, a temperature sensor 20 for transmitting the result to the main controller by sensing the ambient temperature and a data storage part 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control system and a control method for an illuminating lamp, and more particularly to an illuminating light control system and a control method using a microprocessor.

[0002]

2. Description of the Related Art A discharge lamp such as a fluorescent lamp has a small luminous flux change rate with respect to a voltage change. However, if the input voltage is high, the life of the discharge lamp is shortened due to overheating of the electrodes, and the efficiency of the deteriorated discharge lamp becomes very poor. Has characteristics. An illumination light control system for solving such a problem is disclosed in Korean Patent No. 1486.
No. 98.

[0003] The above prior art will be briefly described with reference to FIG. 1. This prior art is characterized in that a discharge lamp such as a fluorescent lamp has a small change in luminous flux even after the lamp is turned on even if the voltage is slightly reduced. An illuminating light control system that reduces power consumption by lowering the input AC power supply voltage after turning on and turning on the lamp, and prevents deterioration of the discharge lamp.

In the above-mentioned conventional lighting control system, the sensor unit (4) detects an input AC power supply voltage (1) and an output AC power supply voltage (5), and based on the detection results, a main controller including a microprocessor. (8) applies control signals (C1, C2) to the power supply control unit (6) and the bypass switching unit (3). The power control unit (6) controls the input power supply voltage by applying the power control signal (C3) to the power transformer unit (2) in response to the voltage control signal (C1) to control the power transformer unit (2). . Then, the bypass switching unit (3) is turned on / off in response to the switching control signal (C2). For example, when an abnormality occurs in the system, the current from the input AC power supply bypasses the power transformer unit (2). Output.

According to such a conventional lighting control system, after the lighting is turned on, the power supply voltage is reduced to a predetermined voltage to achieve a power saving effect, and the power supply voltage is precisely controlled through the power supply transformer. The control prevents the discharge lamp from deteriorating due to fluctuations in the power supply voltage and the like. Also, in this lighting control system, the current power saving rate is calculated and displayed on the display (10).
Control room (not shown) in case of system failure
It also has the function of alarming this and shutting off the power.

On the other hand, in the case of a discharge lamp such as a fluorescent lamp,
It is necessary to heat the electrode for a certain period of time for the first lighting, and if the heating time is too short, lighting becomes unstable, and if the heating time is long, an unnecessary high voltage is applied for a long time, which saves power. Problems such as reduced efficiency and deterioration of the discharge lamp occur. The high voltage application time required for lighting such a discharge lamp (hereinafter referred to as “lighting time”) varies depending on the type of the discharge lamp and the state of the illumination lamp, but the thing that can be said in common for all discharge lamps is: The time required for electrode heating varies depending on the ambient temperature. For example, in summer, a short lighting time is sufficient because the discharge electrode is heated to some extent, but in winter, the electrode is relatively cooled, so a longer lighting time is required.

However, the conventional discharge lamp control system does not have a function of setting such a lighting time flexibly, causing unnecessary power consumption and deterioration of the discharge lamp. In the case of a conventional discharge lamp control system, if the system fails and the main power is turned off, or if the operator restarts the system after manually turning off the power, the operating conditions must be newly set. There is the inconvenience of having to do it.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to provide an illuminating light control system and a control method therefor which have solved the above conventional problems. In particular, an object of the present invention is to provide an illumination light control system and a control method thereof that can adjust the lighting time of the illumination light flexibly.

It is another object of the present invention to provide an illumination light control system and an illumination light control method that can vary the illumination lamp lighting time according to the ambient temperature.

Another object of the present invention is not only to automatically return to the immediately preceding operation condition without inputting a new operation condition at the time of restarting after the main power supply is cut off, but also Switch / control switch ON / OFF, overcurrent output, overvoltage input,
Another object of the present invention is to provide a lighting control system capable of appropriately controlling a lighting even in various other complicated situations such as a power failure.

[0011]

In order to achieve the above object, a lighting control system according to the present invention detects an ambient temperature and applies a high voltage required for lighting the lighting according to the detected ambient temperature. I try to make the time different.

[0012] Further, an illumination lamp control system according to the present invention includes a means for sensing a temperature, a means for determining a high voltage application time for lighting based on the temperature and generating a control signal, and a means for responding to the control signal. Means for applying a high voltage for lighting for the time period.

[0013] The illumination lamp control system according to the present invention may further include means for lowering the power supply voltage after the predetermined time has elapsed. The illumination lamp control system according to the present invention may further include a unit for storing a magnification constant related to the lighting high voltage application time, and the control unit adjusts the lighting voltage application time according to the magnification constant. I have to.

[0014] Further, an illumination light control method according to the present invention includes:
Sensing the ambient temperature, determining a lighting high voltage application time corresponding to the temperature and generating a control signal,
Applying a lighting high voltage during the time period in response to the control signal.

[0015] Further, an illumination light control method according to the present invention includes:
After the lighting high voltage application time has elapsed, the method may further include reducing a voltage applied to the illumination lamp.

[0016] Further, an illumination light control method according to the present invention includes:
The method further includes adjusting the lighting high voltage application time with a predetermined magnification constant.

Further, an illumination lamp control system according to the present invention includes control means for controlling an AC power supply voltage, and storage means for storing control conditions of the control means, wherein the control means stores the control conditions in the storage means when power is turned on. It is characterized in that the system is controlled in accordance with the stored immediately preceding control condition.

Further, the illumination lamp control system according to the present invention may further include an input unit capable of changing the control condition stored in the storage unit, and the illumination lamp control system according to the present invention may include the input unit. It is characterized in that the means is an EEPROM.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In addition,
Korean Patent No. 14869 which is the prior art of the present invention described above.
The description of the contents disclosed in connection with No. 8 is omitted, and the relevant portions of the above-described conventional technology are incorporated in this specification.

FIG. 2 shows an embodiment of an illumination lamp control system according to the present invention. In order to more clearly explain the present invention, a key input unit, a display, a current sensor, and the like are omitted in FIG. 2, but these components are configured in a manner as shown in FIG. What can be done is obvious to one skilled in the art.

Referring to FIG. 2, an illumination light control system according to the present invention includes a main controller (8) including a microprocessor for controlling the entire system, and a power supply transformer (2) in response to a control signal from the main controller. )
And a power supply control unit (6) for outputting a controlled AC power supply voltage. The power supply control unit (6) is turned on / off in response to a control signal from a main control. A bypass switching unit (3) for outputting an output; and a temperature sensor (20) for sensing an ambient temperature and transmitting the result to a main controller.
And a data storage (30).

Preferably, the microprocessor is programmed to determine an appropriate lighting time in accordance with simulation data relating to temperature and lighting time. Further, it is desirable that this temperature sensor is a sensor utilizing the property that the resistance value changes according to the temperature. The data storage unit is preferably a programmable ROM such as an EEPROM, and the data storage unit has various control conditions (such as an output voltage, an input voltage, a power saving mode, and a manual direct connection mode) of a control system. Various types of information relating to the operation state of the control system) may be stored, and a magnification constant for the lighting time may be stored as described later.

First, in the illumination light control system according to the present invention, the control signal (C) of the main controller (8) is used.
A process in which the AC power supply voltage is controlled according to (1, C2) will be described. The power supply control unit responds to the voltage control signal (C1) output from the main controller and outputs the power control signal (C
3) is generated to control the primary side of the power transformer section, and accordingly, the secondary side of the power transformer section is controlled. For example, the control is performed by providing a waveform that cancels (or reinforces) a part of the input AC power supply voltage input to the primary side of the power transformer.

The input voltage and the output voltage of the power transformer are sensed by a sensor and transmitted to a main controller for feedback control. The output voltage of the power transformer is output to an AC power output terminal and then supplied to each lighting. Meanwhile, the main power path can further include a bypass switching unit,
This is switched in response to a switching control signal (C2) from the main controller, and when the bypass switching unit is turned on, the AC power is bypassed to the output power without passing through the power transformer unit.

Next, a process in which the microprocessor according to the present invention determines an appropriate lighting high voltage application time will be described. The microprocessor is pre-programmed to determine an appropriate lighting time using simulation data on temperature and lighting time.

Then, when the ambient temperature value measured from the temperature sensor is transmitted to the microprocessor, the microprocessor calculates a temperature-dependent coefficient for calculating a lighting time corresponding to the temperature.

For example, lighting time (control wait time) = temperature-specific coefficient × minute (min).

Also, simulation data relating to the lighting time according to the temperature is stored in the data storage unit (30), and the microprocessor measures the measured temperature from the temperature sensor (20) and the lighting from the data storage unit (30). The lighting time may be determined by reading the time data.

On the other hand, the lighting time of the illuminating lamp can be changed according to various factors other than the temperature. To give an example, it is necessary to consider characteristics and the like according to the type of each lighting lamp and the total usage time. Therefore, in order to give the system user the possibility to adjust the lighting time flexibly, it is preferable to store the constant of the magnification with respect to the temperature coefficient in the data storage unit (30). . This magnification constant is
For example, 1 times, 1.5 times, 2 times, and the like. In this case, the microprocessor determines the lighting time by the following equation.

Lighting time = constant of magnification × coefficient by temperature × minute (mi
n).

Therefore, factors other than temperature can be taken into account by appropriately selecting the above magnification constant,
Further, after observing the actual lighting result of the illumination lamp, the magnification can be adjusted by changing the constant.

Next, the process of changing the lighting high voltage application time according to the ambient temperature according to the present invention will be described. As described above, when the temperature sensor (20) senses the ambient temperature and transmits it to the main controller (8), the microprocessor in the main controller (8) applies the appropriate lighting high voltage application time according to the ambient temperature. To determine. The main controller (8) controls the input AC power supply voltage by supplying control signals (C1, C2) to the power supply control unit (6) and the bypass switching unit (3) based on the determined high voltage application time. become.

A specific control method will be described with an example. To keep the bypass switching unit (3) in the ON state for a predetermined time (lighting time determined by the microprocessor based on the measured temperature). Gives the input A
The C power supply is bypassed to the output power supply without passing through the power supply transformer section, and after a predetermined time elapses, the bypass switching section (3) is turned off, and a control signal is applied to the power supply control section so that the input AC power supply is turned off. By supplying the power through (2), it is possible to control the illumination lamp to operate at a desired power saving voltage.

The input power supply voltage input to the power supply transformer section and the output power supply voltage output from the power supply transformer section are sensed by the sensor section (4), and the sensed values are transmitted to the main controller. Since the power controller is controlled based on the sensed value, the output power voltage can be precisely controlled to a desired value. Further, the input AC power supply voltage is precisely controlled by controlling the power supply control unit based on the input from the sensor unit (4) for detecting the input AC power supply voltage and the output AC power supply voltage from the beginning without using the bypass switching unit. You can also control it.

In the above, the present invention has been embodied assuming that only the temperature element has an effect on the time for applying the high voltage for lighting. The present invention can be embodied in consideration of other factors that can be exerted in the same manner.

With reference to FIG. 3, an initial state setting process of the illumination lamp control system according to the present invention will be described. First, when the power switch is turned on, the microprocessor of the main controller sets initial values (steps 1 and 2). This initial value is set by the internal program of the microprocessor.
Power control start waiting time including lighting temperature coefficient (lighting time)
And the travel time between power control stages. next,
The last set value stored in the data storage is read (step 3). That is, the system setting value at the time of the immediately preceding termination is read.

Next, it is confirmed whether or not there is a change in the input value from the key input section (step 4). Next, if there is a change in the key value, it is determined whether to store it in the data storage unit (step 5). Next, the A / D converted value from the sensor unit is read (step 6). An input voltage, an output voltage, an output current, an internal temperature, an external temperature, and the like are sensed from the sensor unit, and the results are transmitted.

Next, the operation is determined by the control power switch (step 7). At this stage, all operating conditions including the lighting time and the desired power saving voltage are determined. Next, a control signal is applied to the power supply control unit and the bypass switching unit to control the power supply voltage (step 8).

As described above, according to the present invention, by storing the current operating conditions and the like in the data storage unit, it is possible to appropriately cope with a case where the main power supply is cut off due to a system failure or the like due to an unstable power supply voltage. That is, the current operating conditions such as the current power saving voltage are stored in advance, and the data stored in the data storage unit can be quickly used without inputting the operating conditions separately when the power supply is restarted. It is possible to return to the immediately preceding operation state.

[0040]

According to the present invention, there is provided an illuminating lamp control system which solves the problem that a high voltage is applied to an illuminating lamp for a long time, so that power is wasted and deterioration of a discharge lamp is promoted. Can be. Further, according to the present invention, when the system is restarted after the power is cut off due to a system abnormality or the like, the system quickly returns to the immediately preceding mode using the data stored in the data storage unit. It is possible to control the illumination light well without having to set the lighting conditions. That is, according to the present invention, it is possible to provide an illuminating light control system in which power saving efficiency is high, deterioration of the discharge lamp is prevented, and user convenience is improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a conventional illumination light control system.

FIG. 2 is a block diagram illustrating an embodiment of an illumination light control system according to the present invention.

FIG. 3 is a flowchart for explaining the operation of the control system according to the present invention.

[Explanation of symbols]

 1: input AC power supply 2: power supply transformer section 3: bypass switching section 4: sensor section Power control unit 8: Main controller 9: Key input unit 20: Temperature sensor 30: Data storage unit

Claims (9)

[Claims] 1. An illumination lamp control system, comprising: means for sensing an ambient temperature; means for determining a high voltage application time for lighting based on the ambient temperature to generate a control signal; and responsive to the control signal. Means for applying the lighting high voltage during the lighting high voltage application time. 2. The illuminating lamp control system according to claim 1, further comprising means for reducing the voltage after the lighting high voltage application time has elapsed. 3. The method according to claim 1, further comprising: means for storing a magnification constant with respect to the lighting high voltage application time, and wherein the control signal generating means adjusts the lighting voltage application time according to the magnification constant. An illumination light control system according to claim 2. 4. A method for controlling an illumination lamp, comprising the steps of: sensing an ambient temperature; determining a lighting high voltage application time corresponding to the ambient temperature; and lighting the illumination lamp during the lighting high voltage application time. Applying a high voltage for use. 5. The lighting lamp control method according to claim 4, further comprising: means for lowering the voltage applied to the lighting lamp after the lighting high voltage application time has elapsed. 6. The illuminating lamp control method according to claim 4, further comprising the step of adjusting the lighting high voltage application time at a predetermined magnification constant. 7. An illuminating light control system, comprising: a control means for controlling an AC power supply voltage; and a storage means for storing control conditions of the control means, wherein the control means immediately before the power supply is stored in the storage means. Lighting control system that controls the control system according to the control conditions of the lighting. 8. The illumination lamp control system according to claim 7, further comprising an input unit capable of changing the control condition stored in the storage unit. 9. The storage means is an EEPROM.
Or the illumination light control system according to claim 8.