JP2015158997A - Illumination control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a highly-reliable illumination control device capable of keeping an illumination lamp lit with stability and generating at least any one warning of "The end of its life", "Replacement is required", "Inspection is required", and the like, by the time the illumination lamp itself is extinguished by a failure.SOLUTION: An illumination control device comprises: a drive circuit 58 applying a current of a value indicated by an illumination lamp energization signal to an illumination lamp 61; warning means 78 and 77; and lighting instruction means 66, 74, and 75 generating the illumination lamp energization signal on the basis of lighting setting information and an energization signal generation function and giving it to the drive circuit 58, determining illumination deterioration by a deterioration determination function during the generation process of the illumination lamp energization signal, and, if illumination deterioration is determined, causing the warning means 78 and 77 to issue a warning. In a case where an optical sensor for detecting illuminance of the illumination lamp is provided, a detected value is fed back to generate the illumination lamp energization signal so that the light-emission illuminance becomes a setting value (5). In a case where there is no optical sensor, a lighting time is integrated, and the illumination lamp is lit (6) by the illumination lamp energization signal corresponding to the integrated time.

Description

    The present invention relates to a lighting device for lighting, and particularly relates to a lighting control device that performs stable lighting energization of an LED lighting, although it is not intended to be limited to this, and is used for road lighting, outdoor lighting, security lighting, tunnels. In addition to the field of manufacturing and providing LED lamp lighting control devices that perform internal lighting, etc., these materials and machines are provided from the field of providing and selling facilities and equipment necessary for their transportation, storage, assembly and installation. Fields that provide materials necessary for devices and parts, such as wood, stone, various fibers, plastics, various metal materials, etc., fields of electronic components incorporated in them, and control-related equipment that integrates them, various measurements General term for industrial machinery such as the field of equipment, the field of power equipment that moves the equipment and equipment, the field of electricity and energy that is the energy source, and the field of oil In addition to the fields that have been tested, researched and researched the fields, the fields related to their display, sales, import / export, general results, the results of their use, and the equipment and tools used to build them. There are no unrelated technical fields, such as the fields related to the collection and transportation of garbage waste generated by the operation of the system, the recycling field that efficiently recycles the waste refuse, and the new fields that cannot be envisaged at this time. It is about.

(Points of interest)
In-tunnel lighting is widely used in place of conventional lamps such as sodium lamps, mercury lamps, metal halide lamps or HID lamps, but LED lighting has the advantage of long life and low power consumption. In addition, there is a drawback that the light emission illuminance fluctuates due to various factors. Typical examples of the fluctuating factors include changes in energizing current value, temperature changes, deterioration with time, and other causes. For example, in an LED lamp, the LED resistance value changes due to a temperature change, whereby the LED current value changes and the light emission illuminance changes.

(Conventional technology)
Reflecting this situation, proposals that can be used to overcome this situation are not unheard of.
For example, as typified by the one proposed in Patent Document 1 (1) below, a feedback control technique that detects an LED current and adjusts the LED energizing current so that it matches a reference current value. Further, as shown in the following Patent Document 1 (2), the light emission illuminance of the LED is detected by an optical sensor, compared with a reference value, and feedback for adjusting the LED energizing current so that the light emission illuminance becomes the reference value In order to compensate for a decrease in the amount of illumination light due to deterioration over time, as shown in the control technique and the patent document 1 (3), a correction value corresponding to the lighting integration time is read from the memory and the correction value LED is displayed. There are some techniques to change the energizing current.

However, all previously proposed control technologies for various LED lamps, etc., control the LED energizing current based on a change in energizing current value, feedback control using a photosensor, and a correction value corresponding to the accumulated lighting time. Various control technologies have already been developed. However, depending on the use of the illuminating lamp, highly reliable maintenance is required, and it is proposed in Patent Document 1 (4). In addition, failure detection that detects reflected light on the desk surface of LED lighting and considers that an abnormality has occurred when the reflected light illuminance falls below the threshold is presented, for example, in roads, sidewalks, crime prevention lighting, especially tunnels, etc. It can be said that it is desirable to replace the equipped LED lamp before failure, instead of waiting for the failure of the LED lamp itself, from the viewpoint of safety.
(1) JP 2006-222376 (2) JP 2007-86540 (3) JP 4645295 (4) JP 2012-113909 A

(Object of invention)
Therefore, the present invention maintains stable lighting of the illuminating lamp, and before the illuminating lamp itself is extinguished due to a failure, at least one of “expired life”, “replacement required”, “required inspection”, etc. , We started the development and research very quickly, judging whether it would be possible to develop a new lighting control technology with excellent safety and economy, realizing more reliable maintenance. As a result of repeated trial and error and many trial manufactures and experiments, we have finally succeeded in realizing a lighting control device with a novel structure. The configuration will be described in detail with an example.

(Structure of the invention)
As clearly understood from the embodiments representing the present invention shown in the drawings, the lighting control device of the present invention basically comprises the following configuration. That is,
A drive circuit (58) for energizing the illuminating lamp (61) with a current value indicated by the illuminating lamp energizing signal, alarm means (78, 77), and an illuminating lamp based on the lighting setting information and the energizing signal generating function A warning signal is generated and applied to the drive circuit (58). In the process of generating the lighting lamp activation signal, it is determined whether the lighting is deteriorated by the deterioration determination function. It is an illumination control device having a gist of a configuration including lighting instruction means (66, 74, 75) for generating an alarm.
In addition, in order to facilitate understanding of the configuration, reference numerals of corresponding elements or equivalent elements of the embodiments described later shown in the parentheses are simply added as examples for reference. Needless to say, the contents of the present invention are not limited thereby. The same applies to the following.

    As described above, according to the illumination control device of the present invention, unlike the conventional one, the degree of deterioration is automatically controlled while continuously controlling and using the illumination lamp from the unique characteristic configuration as described above. Judgment can be made to suppress changes in illuminance due to deterioration or failure of the lamp, extend the life of the lamp, and control it to maintain a substantially constant brightness until the time for replacement is reached. It will be used for a sufficient period from the start of use due to temperature changes in the environment, deterioration over time, and various other factors, and it will automatically issue an alarm immediately before the end of the durable life. It is possible to improve the reliability of an illuminating lamp that performs outdoor lighting, crime prevention lighting, lighting in a tunnel, etc., and to make it possible to maintain and manage economically and efficiently.

    More specifically, according to the illumination control device of the present invention, the deterioration determination function determines whether the illumination has deteriorated in the generation process of the illumination lamp energization signal. It is possible to determine that the lighting has deteriorated before generating the alarm, and the lighting manager can replace the lighting lamp until the lighting lamp actually breaks down based on this warning. Maintenance with higher safety and reliability can be realized.

    In addition, an optical sensor for detecting the illuminance of the illuminating lamp is provided, and the urging signal generation function corrects the illuminating lamp urging signal so that the illuminance of illuminance detected by the optical sensor matches a set value. When the corrected illumination lamp energizing signal is equal to or higher than the drive upper limit value, the deterioration determination function is to change the illumination lamp energizing signal to be equal to or lower than the drive upper limit value and generate an alarm by the alarm means. The lighting control device of the invention detects the actual light emission illuminance of the illuminating lamp with a light sensor and performs feedback control based on the detected value, so that the illuminating lamp energizing can be performed more accurately so that the light emission illuminance as set can be obtained. The signal can be corrected and the reliability can be further improved. Further, when the corrected illumination lamp energizing signal exceeds the drive upper limit value, an alarm is automatically issued and the illumination lamp is of Since inform-over period, in the stage before the failure, and that can be exchanged safely new lamp.

    Further, the activation signal generation function integrates the lighting time, reads and updates the sensor deterioration correction value corresponding to the integration time from the memory, and uses the read sensor deterioration correction value to detect the light emission illuminance detected by the optical sensor. Is used for correcting the illumination lamp energizing signal, and the deterioration determination function stops the update of the sensor deterioration correction value when the integration time exceeds the integration upper limit value, and the alarm means Since the illumination control device of the present invention that generates an alarm employs a sensor deterioration correction value that takes into account the lighting time, it is possible to realize more accurate correction of light emission illuminance and to integrate the accumulated time. When it exceeds the upper limit value, an alarm is automatically issued to notify the time for replacement of the illuminating lamp, so that it can be safely replaced with a new illuminating lamp before the failure.

    The activation signal generation function integrates the lighting time, reads the illumination lamp activation information corresponding to the accumulated time from the memory, updates the illumination lamp activation signal to the corresponding value of the illumination lamp activation information, and drives the drive The deterioration determining function is provided to a circuit, and when the integration time exceeds an integration upper limit value, the update of the illumination lamp energizing signal is stopped and an alarm is generated by the alarm means. The control device adopts lighting lamp activation information that takes lighting time into account, so it can realize more accurate correction of light emission illuminance and automatically warns when the accumulated time exceeds the accumulated upper limit value. Is issued, and the time for replacement of the illuminating lamp is notified, so that it can be safely replaced with a new illuminating lamp during the stage before failure.

    Furthermore, an optical sensor that detects the illuminance of the illuminating lamp is provided, and the urging signal generation function corrects the illuminating lamp urging signal so that the illuminance of illuminance detected by the optical sensor matches a set value, and the deterioration The determination function generates an alarm by the alarm means when determining an abnormality in the detection of light emission illuminance of the optical sensor, and the energizing signal generation function activates the illumination lamp corresponding to the integrated lighting time when the abnormality is determined. The information is read from the memory, the illumination lamp energizing signal is updated to the value corresponding to the illumination lamp energizing information, and is given to the drive circuit. When an error is detected, an alarm is automatically issued to notify the time for replacement of the illuminating lamp. Therefore, safe and efficient maintenance can be performed during the stage before failure.

    If the activation signal generation function is effective when there is an optical sensor that detects the illuminance of the illuminating lamp, the illuminance illuminance detected by the optical sensor is corrected so as to match the set value. The deterioration determining function, when the corrected illuminating lamp energizing signal is equal to or higher than the driving upper limit value, changes the illuminating lamp energizing signal below the driving upper limit value to generate an alarm by the alarm means, When the activation signal generation function is absent or invalid, the lighting time is integrated, the illumination lamp activation information corresponding to the integration time is read from the memory, and the illumination lamp activation signal is transmitted to the illumination lamp. The activation information corresponding value is updated and applied to the drive circuit, and the deterioration determination function stops updating the illumination lamp activation signal and generates an alarm by the alarm means when the integration time exceeds the integration upper limit value. To be The illumination control device according to the present invention is capable of ensuring safer and more efficient control under each condition regardless of the presence, absence, validity, or invalidity of a light sensor that detects the illuminance of the illumination lamp. It will be possible to warn of the replacement time.

    When the activation signal generation function is effective when there is an optical sensor for detecting the illuminance of the illuminating lamp, the lighting time is integrated, the sensor deterioration correction value corresponding to the integrated time is read from the memory and updated, The read sensor deterioration correction value is used to correct the illuminance detected by the optical sensor and used to correct the illuminating lamp energizing signal. The deterioration determination function is used when the integration time exceeds the integration upper limit value. The illumination control device according to the present invention is configured to stop the update of the sensor deterioration correction value and generate an alarm by the alarm means. The illumination control device according to the present invention provides an illumination lamp according to the degree of degradation of the optical sensor that detects the illuminance of the illumination lamp. It is assumed that the energization signal can be corrected more accurately, and when the light sensor exceeds the service life, the correction of the illumination light activation signal using the optical sensor is automatically stopped, and the illumination light activation signal Correction Was prevented from an error occurs, it can be realized the illumination excels in the safety.

    When the illuminating signal generation function updates the illuminating lamp activating signal to be given to the drive circuit, the illuminating lamp activating signal is set from the illuminating lamp activating signal immediately before the update to the updated illuminating lamp activating signal. The illumination control device according to the present invention, which is to be changed at a speed, can realize more accurate control based on a set speed corresponding to each durable life of a plurality of types of illumination lamps to be used.

    The lighting control device of the present invention, which is provided with a display for displaying the lighting setting information, can clearly understand the lighting setting information via the display, and can confirm various setting inputs and setting states. It is possible to re-configure more accurately, to prevent setting mistakes more reliably, and to greatly improve safety, and those with a wireless display can be used remotely as well. The lighting setting information can be input and confirmed freely from within the traveling vehicle.

    The lighting control device of the present invention, which is equipped with a wireless communication device that transmits and receives data to and from an external computer, eliminates the need for communication wiring and maintenance thereof, achieves significant cost savings, and maintenance workability In particular, when controlling lights such as highways and tunnels, data can be sent and received easily and quickly from an external computer installed in a running car, greatly reducing maintenance costs. Can be convenient.

In implementing the present invention having the above-described configuration, the best or desirable mode will be described.
The illuminating lamp has a function of illuminating the target range, and can be used for, for example, road lighting, outdoor lighting, crime prevention lighting, tunnel lighting, and more specifically, LED (Light Emitting). Diode lamps and other types of LEDs, including those that will be developed in the future, such as bullet-type, surface-mount type (SMD), and chip-on-board. In addition, it is possible to replace lighting devices other than LEDs.

    The drive circuit has a function of energizing the illuminating lamp with the current of the value indicated by the illuminating lamp energizing signal, and can supply a current controlled to a safe and necessary value for lighting the illuminating lamp. It must be capable of accurately outputting the current of the value based on it, receiving power from the outside and controlling the output current, or having a battery or the like to control the output current Alternatively, it is possible to receive power from the outside, have a battery, etc., and use each power properly according to various conditions.

    Lighting setting information is information that makes it possible to set constants that need to be set for each type of lighting lamp and model to be installed, and lighting conditions for lighting lamps according to various conditions such as installation location and time. It can be set to be directly input by wired communication or wireless communication, and more specifically, dimming input information, at least one of stepwise and stepless output control values, illuminance Various setting information required for more accurate lighting control such as input threshold and output control coefficient can be set. More specifically, for example, lamp configuration, specifications, characteristics, illuminance sensor sensitivity, etc. Model setting data such as conversion coefficients, dimming reference numerical values, deterioration correction tables, and the like can be used.

    The energizing signal generation function is responsible for generating an energizing signal that is less than or equal to the drive upper limit value of the current flowing to the lamp, and is based on various conditions such as the deterioration status of each lamp and the surrounding environment. It is necessary to be able to generate an urging signal with no correction, and it is possible to generate an urging signal with corrections based on various information such as detection values of various sensors, calculation values, memory storage, etc. Desirable, for example, as shown in the examples described later, generating an illumination lamp energizing signal corrected so that the illuminance detected by the optical sensor matches the set value, or integrating the lighting time, The corresponding sensor deterioration correction value (illuminance gain) is read from the memory and updated, and the light emission illuminance detected by the photosensor is corrected using the read sensor deterioration correction value. Based on this, the corrected illumination lamp activation signal is corrected. Produces It can be a benefit thing.

    The illumination lamp energizing signal is a signal generated by the energizing signal generation function, and the drive circuit supplies a current having a value based on this signal to the illumination lamp. It should be a signal generated by the generation function, and can be a signal generated by the activation signal generation function based on various types of information such as detection values of various sensors, calculation values, memory storage, and the like. .

    The deterioration determination function makes it possible to determine the deterioration state of at least one of each part necessary for lighting control of the lighting lamp and the lighting control device, lighting setting information such as setting data for each lighting lamp model, and It should be possible to determine deterioration more accurately based on various information such as detection values, calculation values, and memory storage of various sensors. When it is determined that the illuminating lamp has deteriorated, a signal is sent to the lighting instruction means. As shown in the examples described later, the light emission illuminance detected by the optical sensor, the integrated value of the illumination lamp lighting time, and the sensor deterioration correction value corresponding to the integrated time previously stored in the memory It can be said that it is desirable to be able to determine the deterioration of the illumination lamp based on (illuminance gain) or the like.

    The lighting instruction means receives a signal issued by the deterioration determination function, and has a function that enables the alarm means to generate an alarm, and may be an electric circuit, a relay circuit, or the like that connects the deterioration determination function and the alarm means. In addition, as shown in the embodiments described later, it is possible to use a microcomputer equipped with control software.

    The alarm means has a function to generate an alarm when it receives a signal from the lighting instruction means or when a predetermined condition is met, and clearly notifies the lighting lamp manager of the replacement of the target lighting lamp. It is possible to emit light from alarm lamps, generate sound from speakers, etc., display alarms on various displays, etc., and control lamp blinking, audio output control, screen display It can be accompanied by a control unit or software for performing control or the like.

    The optical sensor has the function of detecting the illuminance of the illuminating lamp and enabling the detected value to be output to the activation signal generation function. In other words, it can be called an illuminance sensor, analog output, digital output Any of these can be selected, for example, photo IC, photo transistor, photo diode, photo diode with a current amplification circuit added, other sensors, and future development It is possible to replace the sensor or a part capable of achieving an equivalent function, such as various light receiving circuits, an image sensor, an electronic still camera, and an electronic still / video camera.

    The sensor deterioration correction value (illuminance gain) is information used to make the correction value of the illuminating lamp energizing signal more accurate and enables correction taking into account the deterioration state of the optical sensor. Based on the characteristics of each model and specification, it is desirable to set a correction value according to the deterioration over time acquired by at least one of experiments and arithmetic processing in advance. The sensor deterioration correction value to be stored in a single memory or stored in a remote database in a centralized manner can be used as information that can be communicated by wired or wireless communication. It is possible to replace the detection value and its detection value with an output value such as a deterioration sensor capable of outputting or a deterioration detection circuit.

    The illumination control device according to the present invention includes a light sensor that detects a light emission illuminance of the illuminating lamp, and the activation signal generation function outputs the illumination light activation signal so that the light emission illuminance detected by the light sensor matches a set value. When the corrected illumination lamp energizing signal is equal to or higher than the driving upper limit value, the deterioration determining function changes the illumination lamp energizing signal below the driving upper limit value and generates an alarm by the alarm means. It can be set as the illumination control apparatus.

    In the illumination control device of the present invention, the energization signal generation function integrates the lighting time, reads and updates the sensor deterioration correction value corresponding to the integration time, and uses the read sensor deterioration correction value. The illumination illuminance detected by the photosensor is corrected and used to correct the illumination lamp energizing signal. When the integration time exceeds the integration upper limit value, the degradation determination function stops updating the sensor degradation correction value. It can be set as the illumination control apparatus which shall generate | occur | produce an alarm by the said alarm means.

    The activation signal generation function integrates the lighting time (47, 48), reads the illumination lamp activation information corresponding to the integration time from the memory, and sets the illumination lamp activation signal to the illumination lamp activation information corresponding value. An update is given to the drive circuit (58) (54), and the deterioration determination function stops the update of the illumination lamp energizing signal and stops the alarm means (78, 78) when the integration time exceeds the integration upper limit value. 77), it is possible to provide an illumination control device that generates an alarm (49-52).

    The illumination control device of the present invention further includes an optical sensor (72, 73) for detecting the illuminance of the illuminating lamp, and the urging signal generation function is an illuminance of illuminance detected by the optical sensor (72, 73). The illumination lamp energizing signal is corrected so as to match the set value (27 to 29), and the deterioration determining function determines that the alarm means (72, 73) has detected the light emission illuminance detection abnormality. 78, 77) generates an alarm (14, 26, 35, 36), and when the activation signal generation function determines that the abnormality is present, the illumination lamp activation information corresponding to the integrated lighting time is read from the memory. (56) The illumination control device illumination control device (FIGS. 3 and 4) which is configured to update the illumination lamp energization signal to the value corresponding to the illumination lamp energization information and give it to the drive circuit (58) (46) It can be.

    The activation signal generation function sets the light emission illuminance detected by the light sensor light sensor (72, 73) when the light sensor light sensor (72, 73) for detecting the light emission illuminance of the illumination lamp is effective. The illumination lamp energizing signal is corrected so as to match the value (27 to 29), and the deterioration determination function determines that the illumination lamp energizing signal when the corrected illumination lamp energizing signal is equal to or higher than the drive upper limit value. Can be changed to below the drive upper limit value, and the lighting control device (FIGS. 3 and 4) can be configured to generate an alarm (30-32 to 34, FIG. 3) by the alarm means (78, 77). It is.

    If the photosensor light sensor (72, 73) is absent or invalid, the energization signal generation function integrates lighting times (47, 48), and illumination lamp energization information corresponding to the accumulated time. Is read from the memory, the illumination lamp activation signal is updated to the illumination lamp activation information corresponding value and applied to the drive circuit (58) (54), and the deterioration determination function causes the accumulated time to be equal to or greater than the accumulated upper limit value. When it becomes, it can be set as the illumination control apparatus (FIG. 2) which stops the update of the said illuminating lamp energizing signal and generates an alarm (49-52, FIG. 4) by the said alarm means (78, 77). .

    The energizing signal generation function integrates the lighting time (19, 20) and corresponds to the integrated time when there is an optical sensor (72, 73) that detects the illuminance of the illuminating lamp and is effective. A sensor deterioration correction value (illuminance gain) is read from the memory and updated, and the light emission illuminance detected by the optical sensor is corrected using the read sensor deterioration correction value to be used for correcting the illumination lamp energizing signal ( 24 to 29), when the integration time exceeds the integration upper limit value, the deterioration determination function stops updating the sensor deterioration correction value and generates an alarm by the alarm means (78, 77) (21-23). -25) It can be set as the illumination control apparatus (FIG. 3) comprised as mentioned above.

    The activation signal generation function updates the illumination lamp activation signal from the illumination lamp activation signal immediately before the update to the updated illumination lamp activation signal when the illumination lamp activation signal applied to the drive circuit (58) is updated. It is possible to provide an illumination control device (FIGS. 3 and 4) in which the signal is changed at a set speed (18, 46).

    The lighting control device according to the present invention can further be (3) a lighting control device (FIGS. 1 and 2) including a display (76) for displaying the lighting setting information. 76) can be wired or wirelessly connectable.

The lighting control device can also be the lighting control device illustrated in FIG. 1 that includes a wireless communication device (70) that sends and receives data to and from an external computer (85).
Other objects and features of the present invention will become more apparent from the following specific description of the embodiments with reference to the drawings.
In the following, the structure of the present invention will be described in detail together with an embodiment representative of the present invention shown in the drawings.

The drawings show some typical embodiments that embody the technical idea of the illumination control device of the present invention.
It is a block diagram which shows the hardware constitutions of 1 Example of this invention. It is a flowchart which shows the outline | summary of the main function of the illumination control which the microcomputer 66 shown in FIG. 1 performs based on a lighting control program. It is a flowchart which shows the content of the "feedback correction" 5 shown in FIG. It is a flowchart which shows the content of the "time correction" 6 shown in FIG.

FIG. 1 shows a hardware outline of an in-tunnel LED illumination control apparatus that implements the present invention in one aspect.
This control device controls lighting of three LED lamps 61, 62, 63 provided in a vehicle tunnel under the same conditions at the same time. The LED lamps 61, 62, 63 include a DC / DC step-down converter 64. Supplies DC power.
An AC / DC converter 65 supplies DC power to the DC / DC step-down converter 64 by rectifying, smoothing, and making a constant voltage from the commercial AC AC. The DC / DC step-down converter 64 generates a control source voltage (constant voltage) and supplies the control system power supply circuit 84 with power.

The control system power supply circuit 84 generates a control constant voltage 5V and applies it to the microcomputer 66 and peripheral circuits connected thereto.
That is, the DC voltage generated by the DC / DC step-down converter 64 in parallel with the dimming mode compatible LED drive voltage is supplied to the microcomputer 66, the wireless communication device 70 and other microcomputer peripheral circuits by the control system power supply circuit 84. Control system DC voltage stabilized to constant voltage is applied>
That is, it does not have a dedicated power source for supplying power to the microcomputer 66, the wireless communication device 70, and other microcomputer peripheral circuits, and operates by receiving a DC voltage from the DC / DC step-down converter 64 that is an LED lighting circuit.

    The DC / DC step-down converter 64 outputs 100%, 85%, 50%, 25% and 0% of the stable constant voltage which is the output of the AC / DC converter 65, as an output voltage instruction signal of the microcomputer 66. It is selectively generated according to Vref and applied to the LED lamps 61, 62, 63. In this embodiment, the dimming mode of the LED lamps 61 to 63 is represented by a combination of opening and closing of a plurality of instruction switches in the dimming input circuit 68. In the dimming mode, a test (TEST) mode for instructing 100% voltage output to the DC / DC step-down converter 64, a steady mode for instructing 85% voltage output, and a 1/2 for instructing 50% voltage output. There are a dimming mode, a ¼ mode instructing a voltage output of 25%, and a stop mode instructing a voltage output of 0% (light-off). In other words, there are five dimming modes for lighting the LED lamp: test mode, steady mode, 1/2 dimming mode, 1/4 dimming mode, and stop mode.

The microcomputer 66 displays the dimming mode designated by the dimming input circuit 68 on the two-digit character display 76.
Since there is a stop mode (0%), even if the input AC of the AC / DC converter 65 is not shut off by switching off or pulling out the plug, by setting (specifying) the dimming mode, the LED lamp 61- 63 can be turned off.

    The AC / DC converter 65 has a surge absorption circuit that suppresses the intrusion of lightning surge on the AC input side, and measures against lightning surges in the lighting power line are taken. It has been subjected. That is, the plurality of dimming mode instruction switches in the dimming input circuit 68 are switches for turning on / off AC 220 V, respectively, and an insulating circuit is connected to each via a noise filter / surge protection circuit. The insulation circuit includes a photocoupler connected to a dimming mode instruction switch. An optical signal corresponding to switching on / off of the photocoupler is converted into a DC low voltage L / H signal (dimming mode designation data) in the insulating circuit, and applied to the microcomputer 66.

    The microcomputer 66 executes the lighting control in the dimming mode specified by the dimming input circuit 68 when starting the lighting control by turning on the power to the microcomputer 66, but is turned on when the TEST instruction switch is operated. Switch control to test mode. Each time the MODE switch 83 is operated, the instruction mode is switched to the lower one in order, and after switching to the stop mode, the instruction mode is switched to the higher one in order. Then, the switched light control mode is switched and displayed on the display 76.

    The LED lamps 61 to 63 incorporate constant current drive circuits 58 to 60 having the same function. The constant current drive circuit 58 includes a transistor and a current detection resistor connected in series to the LED array, and the microcomputer 66 detects the LED current detected by the current detection resistor via the integrator 74 and the voltage / current converter 75. A feedback control circuit including a comparator or a differential amplifier for controlling the energization of the transistor so that the LED current becomes the target current value in contrast to the illumination lamp energizing signal (analog signal of the target current value) given by A constant current control circuit is provided.

    The microcomputer 66 generates a target current value for lighting the LED lamps 58 to 60, converts this into a PWM pulse, and gives it to the integrator 74. The integrator 74 converts the duty of the PWM pulse (representing the target current value) into a voltage (voltage representing the target current value), and the voltage / current converter 75 converts it into a target current value, that is, an illumination lamp energizing signal. And output to the constant current drive circuits 58-60. At this time, the microcomputer 66 sequentially changes the duty of the PWM pulse at a set speed from one representing the immediately preceding target current value to one representing the newly generated target current value. That is, switching is performed slowly.

    The microcomputer 66 simultaneously gives the same lighting command (Vref, illumination PWM pulse) to three LED lamps 61 to 63 having the same configuration and the same function. This is because one or two LED lamps are broken. This is for avoiding that two or one LED continues to be lit and become all unlit even if it is turned off. For example, when one LED lamp that incorporates all of the LEDs is used instead of the LED lamps 61 to 63, if the lamp breaks down, the illumination is interrupted there. According to the lighting control based on the same lighting command at the same time, such interruption of illumination does not occur.

The alarm indicator lamp 77 is a red LED in this embodiment, and the LED driver 78 is driven to light in response to an alarm notification instruction from the microcomputer 66. The normal indicator lamp 79 is a blue LED, and the LED driver 80 is driven to light in response to a lighting instruction from the microcomputer 66.
The microcomputer 66 generates a PWM pulse having a set duty for reducing the power consumption of the display 76, the red LED, and the blue LED, and supplies the PWM pulse to the PWM driver 81.
The PWM driver 81 generates a driving pulse of a lighting driving level synchronized with the PWM pulse and applies it to the display 76 and the LED drivers 78 and 80. The LED drivers 78 and 80 turn on the LEDs 77 and 79 with the drive pulse when the microcomputer 66 instructs the lighting.

The clock generator 69 generates a clock pulse and gives it to the microcomputer 66. The microcomputer 66 divides the clock pulse to generate an internal clock pulse having a long cycle, and counts the internal clock pulse to measure the elapsed time. To do. A wireless communication device 70 that performs wireless data communication with the external computer 85 is connected to the microcomputer 66. When receiving a radio wave (or communication light) from the external computer 85, the microcomputer 66 starts data communication with the external computer 85, and in accordance with an instruction from the external computer 85, state information held by the microcomputer 66 and the nonvolatile memory 67, Transmission of control data, setting information of the microcomputer 66 and the nonvolatile memory 67, update of a control program, and the like are performed.
When the external computer 85 issues a reset instruction, the reset circuit 71 gives a reset signal to the microcomputer 66, and the microcomputer 66 proceeds to the stop mode in response to the reset signal. Thereafter, lighting control in the designated mode is started in accordance with the operation of the TEST instruction switch 82 or the MODE changeover switch 83.

The nonvolatile memory 67 includes a state register (memory area) for storing setting information and state information related to lighting control, a control program storage area, an initial illuminance value corresponding to a dimming mode referred to in lighting control, and a time series gain table (illuminance). Gain data group), time series target value table (target value data group), and the like. In the status register, the specified dimming mode, optical sensor valid / invalid (whether the optical sensor 72 can be used), reference current value, elapsed time measurement value, integrated time calculation value, indicator lamps 77, 79 are turned on / off Information is stored. When the dimming mode is switched to the stop mode by operating the MODE switch, the microcomputer 66 writes, that is, updates the status register.
The microcomputer 66 reads from the nonvolatile memory 67 the lighting control program addressed to the dimming mode instructed by the dimming input circuit 68 at the start of the control operation in which the operating voltage is applied to the microcomputer 66, and writes it into the program memory inside the microcomputer 66. The status register optical sensor valid / invalid, reference current value, elapsed time measurement value, accumulated time calculation value, lighting / extinction information of the indicator lamps 77 and 79, etc. are written into the status register inside the microcomputer 66 and read. Lighting control is started based on the control program and the read state information.

When the dimming mode is switched by the operation of the MODE switch, the microcomputer 66 updates the dimming mode of the status register to the switched one, reads the lighting control program for the dimming mode from the nonvolatile memory 67, and reads its own program. Write to the memory and start lighting control based on the lighting control program.
The initial illuminance value corresponding to the dimming mode is an initial illuminance target value when the optical sensor 72 is valid (connected to the microcomputer 66 and the light detection is normal), and is designated dimming mode (test mode, steady mode, 1 / 2 dimming mode and 1/4 dimming mode) There are four types addressed to each. When starting the lighting control in the designated dimming mode, the microcomputer 66 sets the initial illuminance target value addressed to the designated dimming mode as the target value so that the LED emission illuminance detected by the light sensor 72 becomes the target value. A target current signal applied to the current driving circuits 58 to 60, that is, an illumination lamp energizing signal is adjusted.

The time series gain table is referred to when the optical sensor 72 is valid, and is assigned to each of the designated dimming modes (test mode, steady mode, 1/2 dimming mode, and 1/4 dimming mode). There are four types. The data in each table is 200 in increments of 1,000 hours from the initial illuminance gain used for correcting the illuminance detection value of the optical sensor 72 until 1,000 hours have elapsed since the start of lighting control in each dimming mode. This is an illuminance gain group for a total of 200 integration times that are used by switching up to 000 hours.
These illuminance gains are sensor deterioration correction values, and the deterioration of LED lighting illuminance detection due to contamination and deterioration of the light sensor 72 and the current / voltage converter 73 from the start of lighting control of the LED lamp to the elapse of 200,000 hours. Is to compensate.

The time series target value table is an LED target current value used when the optical sensor 72 is invalid (light detection is abnormal even if the optical sensor 72 is disconnected or connected to the microcomputer 66). There are four types addressed to each of the test mode, steady mode, 1/2 dimming mode and 1/4 dimming mode. The data in each table is in increments of 1,000 hours from the initial target current value used for correcting the light detection value of the optical sensor 72 until 1,000 hours have elapsed since the start of lighting control in each dimming mode. This is a target current value group addressed to a total of 200 accumulated times that are used by switching up to 200,000 hours.
These target current values are converted into illumination PWM pulses, further converted into illumination lamp energizing signals (target current signals) by an integrator 74 and a voltage / current converter, and applied to constant current drive circuits 58 to 60 of the LED lamp. .

In this embodiment, the lighting control B that is the basic lighting control and the lighting control A that is the simple lighting control can be selectively performed.
The lighting control B, that is, the basic lighting control is to perform constant illuminance control (illuminance feedback control) in which the LED light emission illuminance is detected using the light sensor 72 and the LED current is adjusted so that this becomes the target illuminance value. In order to compensate for detected illuminance fluctuations due to contamination and deterioration of the optical sensor 72 and the detected illuminance processing circuit 73, in the basic lighting control, the illuminance gain addressed to the integration time is read from the time series gain table to correct the detected illuminance of the optical sensor 72. To do.
In the lighting control A, that is, the simple lighting control, the target current value addressed to the integration time is read from the time series target value table without using the light sensor, and the LED current is adjusted so that the LED current value becomes the target current value. Current control is performed. When the optical sensor 72 is valid (connected and normal), the microcomputer 66 of this embodiment executes the lighting control B, that is, the basic lighting control, and the optical sensor is invalid (not connected or illuminance detection is performed). If it is abnormal, lighting control A, that is, simple lighting control is executed.

The illumination control device of this embodiment applied to the illumination in the tunnel is not applied to the LED lamp that illuminates the tunnel entrance, the optical sensor is not connected (lighting control A), and is applied to the LED lamp that illuminates the interior of the tunnel. Is connected to the light sensor 72 (lighting control B).
That is, the LED lamp that illuminates the tunnel entrance is controlled with constant current by lighting control A, that is, simple lighting control, and the LED lamp that illuminates the inside of the tunnel is controlled with constant illumination control (illuminance feedback control) by lighting control B, that is, basic lighting control. ).

    However, in the lighting control B (optical sensor connection), an abnormality in illuminance detection by the optical sensor 72 is determined (monitored), and if it is determined as abnormal, the optical sensor valid / invalid data in the state data group is represented as valid. It rewrites to the thing showing invalidity, and lighting control A is performed from there. That is, the lighting control of the microcomputer 66 is switched from constant illuminance control (basic lighting control) to constant current control (simple lighting control). Thereby, the light emission abnormality of the LED lamp due to the light sensor error is avoided, and normal lighting of the LED lamp continues.

Here, the constant current control (lighting control A; simple lighting control) and constant illuminance control (lighting control B; basic lighting control) represent control modes (external control) for the LED lamps 61 to 63 by the microcomputer 66. It is.
The constant current drive circuits 58 to 60 in the LED lamps 61 to 63 control the LED current value in the lamp to a target current value (illumination lamp energizing signal) which is a lighting command given by the microcomputer 66. Regardless of which lighting control B and A 66 are executing, the constant current driving circuits 58 to 60 always perform constant current control (internal control) within the LED lamp.

FIG. 2 shows an outline of the lighting control of the microcomputer 66. When the commercial AC is applied to the AC / DC converter 65 and an operating voltage is applied to the microcomputer 66 via the DC / DC converter 64 and the control system power supply circuit 84, the microcomputer 66 starts and waits for the input / output port of the microcomputer. 2 (step 1 in FIG. 2), the stored data (status data group) of the status register is read from the nonvolatile memory 67, and the dimming mode (designation specified by the dimming input circuit 68) Dimming mode) is read and displayed on the display 76 (steps 2 and 3), the lighting control program addressed to the dimming mode is read from the nonvolatile memory 67 and expanded in the program memory inside the microcomputer 66, and the lighting control program is stored in the lighting control program. Based on this, lighting control is started.
In the following explanation, the step No. corresponding to the corresponding part of the flowcharts of FIGS. Is appended with parentheses, and the notation “step” is omitted in the parentheses.
The microcomputer 66 refers to the optical sensor valid / invalid data in the status data group, and if it is “optical sensor valid”, “feedback correction” (5), and if “optical sensor invalid”, “time correction”. Proceed to (6).

    FIG. 3 shows the contents (outline) of “feedback correction” (5). When proceeding here, the microcomputer 66 refers to the initial / restart data in the state data group (10), and if it represents the initial, reads the initial illuminance gain addressed to the integration time 0 of the time-series gain table. The illuminance gain is set (11). Then, the initial illuminance value (illuminance target value) corresponding to the designated dimming mode is read from the status register (12), converted into an initial current value (current target value), and PWM pulse output to the integrator 74 is started. Then, the data is sequentially increased to a value corresponding to the initial current value at the set speed (13).

    As a result, the LED lamps 61 to 63 start to emit light, and the illuminance gradually rises and is stably lit with the illuminance corresponding to the initial current value. Thereafter, the microcomputer 66 generates illuminance data obtained by multiplying the detected illuminance detected by the optical sensor 72 by the initial illuminance gain at a set cycle, and sets 97% of the average value of the illuminance data for one hour as the target illuminance value. Convert to value (15). Here, the measurement of elapsed time is started (16), and the initial / restart data is updated to the initial information (17). Then, the duty of the PWM pulse output to the integrator 74 is changed to the target current value corresponding value at the set speed (18). Then, the PWM pulse output with the duty corresponding to the target current value is continued, and the elapsed time measurement started in step 16 is waited for 1,000 hours (19).

    Although not shown in the drawing, the microcomputer 66 finishes the process of changing the pulse duty of the illumination PWM to the target current value corresponding value in step 18, and then uses the monitor function to output the output voltage of the integrator 74 ( (Target current instruction signal: illuminating lamp energizing signal) Fm is digitally converted and read, and if this is significantly different from the target current value corresponding value, the output voltage command Vref shall indicate the test mode (100%) output and The output pulse duty of illumination PWM is changed to a value corresponding to 100% output, that is, full lighting drive is performed, LED red is lit, and a dimming output abnormality (microcomputer operation abnormality) is written in the status register. This full lighting drive is intended to ensure lighting safety when the dimmer fails.

    While waiting for the elapsed time measurement to reach 1,000 hours, illuminance data obtained by multiplying the illuminance detected by the optical sensor 72 by the illuminance gain is generated at a set cycle, and the average value of the illuminance data for one hour ( (Average illuminance) is calculated (25), converted into an LED lamp current value (feedback current value: feedback current value) (27), and a correction value for making this feedback current value a target current value is calculated. After calculating (28), the target current value is changed to a value obtained by adding the correction for the correction value to the target current value (30), the LED blue 79 is turned on (normal notification) (31), and changed. The duty of the PWM pulse output to the integrator 74 is changed at the set speed until the duty corresponding to the target current value (18).

    When the changed target current value exceeds the upper limit value, the target current value is set to the upper limit value or less, LED red 77 is lit (abnormality notification) (30-32, 33), and LED drive error data is written to the status register. (34) The duty of the PWM pulse output to the integrator 74 is changed to the target current value corresponding value at the set speed (18).

    When the elapsed time measurement started in step 16 reaches 1,000 hours or more, the elapsed time measurement value is initialized to 0 and a new elapsed time measurement is started, and the accumulated time is updated to a value increased by 1,000 hours (19 20), the illuminance gain corresponding to the integration time is read from the time series gain table corresponding to the designated dimming mode (24), and the illuminance gain used for illuminance data calculation is updated to this value and used for the average illuminance calculation (25). .

When the accumulated time reaches 200,000 hours, which is the expected life (control limit) of the light sensor 72 and the LED lamps 61 to 63, the microcomputer 66 turns on the LED red 77 (notifies the abnormality), and detects the sensor in the status register. Write an error (21-23).
During execution of feedback correction (5), the microcomputer 66 searches the illuminance data detected by the optical sensor 72 for abnormality (14, 26). Lights up (abnormality notification) and writes a sensor error in the status register (35, 36). Then, the process proceeds to “temporal correction” (6) which is the lighting control A shown in FIG. 4, and the target current value addressed to the integration time is read from the time-series target value table corresponding to the designated dimming mode (56), and the integration is performed. The duty of the PWM pulse output to the device 74 is changed to the target current value corresponding value at the set speed (46), and thereafter "time correction" (6) is continued.

    If the initial / restart data indicates “restart” when proceeding to “feedback correction” (5), the microcomputer 66 integrates the integrator 74 up to the duty corresponding to the target current value stored in the status register. The duty of the PWM pulse to be output to is sequentially changed at the set speed (18), and the elapsed time measurement from the elapsed time stored in the status register is restarted.

    FIG. 4 shows the contents (outline) of “temporal correction” (6). When proceeding here, the microcomputer 66 refers to the first time / restart data in the state data group (41), and when it represents the first time, the accumulated time 0 (in the time series target value table addressed to the designated dimming mode is indicated. The target current value addressed to the first time is read (42), elapsed time measurement is started (43), the initial / restart data is updated to the initial information (44), and LED blue 79 is lit (notifies normality) (45) ), PWM pulse output to the integrator 74 is started, and the duty is sequentially increased to a value corresponding to the target current value at the set speed (46). As a result, the LED lamps 61 to 63 start to emit light, and the illuminance gradually rises, and the LED lamps 61 to 63 are lit stably with the illuminance corresponding to the target current value. Thereafter, the microcomputer 66 waits for the elapsed time measurement started in step 43 to reach 1,000 hours (47). While waiting, the output of the PWM pulse with the duty corresponding to the target current value is continued (55).

    Although not shown, the microcomputer 66 digitally converts and reads the output voltage (target current instruction signal: illuminating lamp energizing signal) Fm of the integrator 74 by a monitoring function in step 55, which corresponds to the target current value. If the output voltage command Vref is instructed to output the test mode (100%) and the output pulse duty of the illumination PWM is changed to a value corresponding to 100% output, that is, full lighting drive is performed. LED red lights up and dimming output error (microcomputer operation error) is written to the status register. This full lighting drive is intended to ensure lighting safety when the dimmer fails.

    When the elapsed time measurement started in step 43 reaches 1,000 hours or more, the elapsed time measurement value is initialized to 0 and a new elapsed time measurement is started, and the accumulated time is updated to a value increased by 1,000 hours ( 47, 48), the target current value corresponding to the integration time is read from the time series target value table corresponding to the designated dimming mode (54), and the target current value for energizing the LED is updated to this value, and the integrator The duty of the PWM pulse output to 74 is sequentially changed to a value corresponding to the target current value at the set speed (46).

    When the accumulated time reaches 200,000 hours, which is the expected life (control limit) of the LED lamps 61 to 63, the microcomputer 66 turns off the LED blue 79 (50) and turns on the LED red 77 (abnormality notification). (51), LED driving error is written in the status register (52). Thereafter, output of PWM pulses having a duty corresponding to the target current value is continued without updating the target current value (53).

    If the initial / restart data indicates “initial information” when the process proceeds to “time correction” (6), the microcomputer 66 measures the elapsed time (previous time) in the status register. (57), the target current value addressed to the integration time in the status register is read from the time-series target value table addressed to the designated dimming mode (56), and the duty of the PWM pulse output to the integrator 74 Are successively increased to a value corresponding to the target current value at the set speed (46).

(Conclusion)
As described above, the lighting control device of the present invention can achieve the intended purpose evenly by its novel configuration, and is easy to manufacture, compared with the conventional control device technology for lighting lamps. In addition to significantly improving safety, extending the durability life, greatly reducing maintenance costs and making it much more economical, it can greatly improve maintenance workability. Until now, most of the maintenance management was to replace all the lamps installed in the target area at a time when there was enough time to reach a certain endurance life. Because it can be used safely and reliably just before the end of its endurance life, and can be efficiently maintained immediately before the failure occurs, lighting that requires more economical and safe lighting technology Lighting equipment Not only in the manufacturing industry, but also in the road management industry and road maintenance industry that place emphasis on the management of lighting, as well as in general companies and households that want to use lighting with excellent reliability in various situations, It is expected to be used and spread widely.

58, 59, 60 Constant current drive circuit 61, 62, 63 LED lamp 64 DC / DC step-down converter 65 AC / DC converter 66 Microcomputer 67 Non-volatile memory 68 Dimming input circuit 69 Clock generator 70 Wireless communication device 71 Reset circuit 72 Light Sensor 73 Current / voltage converter 74 Integrator 75 Voltage / current converter 76 Display 77 Alarm indicator lamp 78 LED driver 79 Normal indicator lamp 80 LED driver 81 PWM driver 82 TEST (test mode) instruction switch 83 MODE (mode) selector switch 84 Control system power supply circuit

The energization signal generation function adjusts the light emission illuminance detected by the light sensor (72, 73) to a set value when the light sensor (72, 73) that detects the light emission illuminance of the illumination lamp is effective. The illumination lamp energizing signal is corrected (27 to 29), and the deterioration determining function determines that the illumination lamp energizing signal is the driving upper limit value when the corrected illumination lamp energizing signal is equal to or higher than the driving upper limit value. It is possible to change to the following and to set it as the illumination control apparatus (FIG. 3, FIG. 4) as what shall generate | occur | produce an alarm by the said alarm means (78, 77) (30-32-34, FIG. 3).

When the light sensor (72, 73) is not present or invalid, the activation signal generation function integrates lighting times (47, 48), and stores lighting lamp activation information corresponding to the integration time. When the illuminating lamp energizing signal is updated to the illuminating lamp energizing information corresponding value and applied to the drive circuit (58) (54), and the deterioration determining function is used when the accumulated time exceeds the accumulated upper limit value. The lighting control device (FIG. 2) is configured to stop the update of the illuminating lamp energizing signal and generate an alarm (49 to 52, FIG. 4) by the alarm means (78, 77).

The activation signal generation function integrates lighting times (19, 20) when there is an optical sensor (72, 73) for detecting the illuminance of the illuminating lamp and is effective, and sensor degradation corresponding to the integration time. A correction value (illuminance gain) is read from the memory and updated, and the light emission illuminance detected by the photosensor is corrected using the read sensor deterioration correction value to be used for correcting the illumination lamp energizing signal (24-). 29) The deterioration determining function stops updating the sensor deterioration correction value and generates an alarm by the alarm means (78, 77) when the integration time exceeds the integration upper limit value (21-23-25). The illumination control device (FIG. 3) can be configured as described above.

Claims (10)

    A drive circuit for supplying a current of a value indicated by the illumination lamp energization signal to the illumination lamp, an alarm means, and an illumination lamp energization signal based on the lighting setting information and the energization signal generation function, And determining whether the illumination has deteriorated by the deterioration determination function in the process of generating the illumination lamp energizing signal, and comprising lighting instruction means for generating an alarm by the alarm means when determining that the illumination has deteriorated, Lighting control device.     The illumination control device further includes an optical sensor that detects the illuminance of the illuminating lamp, and the urging signal generation function outputs the illuminating lamp energizing signal so that the illuminance detected by the optical sensor matches a set value. When the corrected illumination lamp energizing signal is equal to or higher than the driving upper limit value, the deterioration determining function changes the illumination lamp energizing signal to be lower than the driving upper limit value and generates an alarm by the alarm means. The illumination control device according to claim 1, wherein     The activation signal generation function integrates the lighting time, reads and updates the sensor deterioration correction value corresponding to the integration time from the memory, and uses the read sensor deterioration correction value to determine the light emission illuminance detected by the photosensor. The correction is used to correct the illuminating lamp energizing signal, and the deterioration determination function stops updating the sensor deterioration correction value and generates an alarm by the alarm means when the integration time exceeds the integration upper limit value. The illumination control device according to claim 2, wherein the illumination control device is configured to do so.     The activation signal generation function integrates the lighting time, reads the illumination lamp activation information corresponding to the integration time from the memory, updates the illumination lamp activation signal to the illumination lamp activation information corresponding value, and The deterioration determination function given to the drive circuit is configured to stop updating the illumination lamp energizing signal and generate an alarm by the alarm means when the integration time is equal to or greater than the integration upper limit value. Item 2. The lighting control device according to Item 1.     The illumination control device further includes an optical sensor that detects the illuminance of the illuminating lamp, and the urging signal generation function outputs the illuminating lamp energizing signal so that the illuminance detected by the optical sensor matches a set value. The deterioration determination function generates an alarm by the alarm means when determining an abnormality in the detection of light emission illuminance of the optical sensor, and the energizing signal generation function corresponds to the lighting integrated time when the abnormality is determined. 2. The illumination control according to claim 1, wherein the illumination lamp activation information to be read is read from the memory, and the illumination lamp activation signal is updated to a value corresponding to the illumination lamp activation information and applied to the drive circuit. apparatus.     The activation signal generation function corrects the illumination lamp activation signal so that the emission illuminance detected by the optical sensor matches a set value when there is an optical sensor that detects the illumination intensity of the illumination lamp and is effective. When the corrected illumination lamp energizing signal is equal to or higher than the driving upper limit value, the deterioration determining function changes the illumination lamp energizing signal to be equal to or lower than the driving upper limit value, generates an alarm by the alarm means, The activation signal generation function integrates the lighting time when the light sensor is absent or invalid, reads out the illumination lamp activation information corresponding to the integration time from the memory, and outputs the illumination lamp activation signal. An update to the illumination lamp activation information corresponding value is given to the drive circuit, and the deterioration determining function stops the update of the illumination lamp activation signal when the integration time is equal to or greater than the integration upper limit value, and the alarm means To generate an alarm by It was shall, lighting control device according to claim 1.     If there is an optical sensor that detects the illuminance of the illuminating lamp and it is effective, the activation signal generation function integrates the lighting time, reads out the sensor deterioration correction value corresponding to the integration time, and updates it. The read sensor deterioration correction value is used to correct the illuminance detected by the optical sensor and used to correct the illuminating lamp energizing signal. The deterioration determination function is used when the integration time is equal to or greater than the integration upper limit value. The illumination control device according to claim 6, wherein updating of the sensor deterioration correction value is stopped and an alarm is generated by the alarm means.     The activation signal generation function updates the illumination lamp activation signal from the illumination lamp activation signal immediately before the update to the updated illumination lamp activation signal when updating the illumination lamp activation signal given to the drive circuit. The lighting control device according to claim 1, wherein the lighting control device is changed at a set speed.     The illumination control device according to any one of claims 1 to 7, wherein the illumination control device further includes a display for displaying the lighting setting information.     The illumination control device according to any one of claims 1 to 7, further comprising a wireless communication device that transmits and receives data to and from an external computer.

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