JP2010061899A - Tunnel illumination control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tunnel illumination control device with a low cost structure which achieves a high precision illumination generally for a long period by reducing lighting/turning-off of the lighting apparatuses and extending their lifetime, and light controlling illumination in the whole region in the tunnel uniformly and smoothly. <P>SOLUTION: The distribution panel 10 performs a dimming control by PWM to an illumination device 20, thereby, the optical output becomes a continuous and smoothly increasing or decreasing change and reduces a stress on the illumination device 20, and a tunnel illumination control device 1 is attained having a long lifetime. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a tunnel illumination control device that performs dimming of illumination in a tunnel through which a vehicle passes.

  A conventional tunnel illumination control device will be described with reference to the drawings. FIG. 14 is an explanatory diagram of a conventional tunnel illumination control apparatus. As shown in FIG. 14, the tunnel lighting control device 100 controls lighting in a tunnel 200 such as a main road or a highway. More specifically, the tunnel illumination control device 100 includes an entrance illumination 101 disposed at the entrance, a basic illumination 102 disposed at the basic portion (an intermediate portion between the entrance and the exit), and an exit. And an illumination device comprising an exit illumination 103 arranged in the section, and these illumination devices are provided in the tunnel 200 in the direction of travel of the vehicle 300, the entrance illumination 101, the basic illumination 102, and the exit. The lighting 103 is arranged in this order.

The entrance illumination 101, the basic illumination 102, and the exit illumination 103 each include a plurality of lighting fixtures (lights).
Among these, the entrance illumination 101 and the exit illumination 103 on the outside increase the illumination intensity by arranging a plurality of lighting fixtures at short intervals in order to reduce the change in illumination intensity inside and outside the tunnel 200 with respect to the driver. Designed to do.
On the other hand, in the basic part illumination 102, the driver gets used to the darkness of the tunnel 200, so that a plurality of lighting fixtures are arranged at relatively long intervals.

  With respect to such illumination of the tunnel 200, the illumination intensity outside the tunnel 200 varies depending on the weather and dusk during the daytime, and also extremely different at night, so the illumination in the tunnel 200 is a burden on the driver's visual environment change. It is necessary to adjust the light so that the appropriate illuminance can be reduced.

  Specifically, luminance meters 104a and 104b are installed at the tunnel entrances (entrance / exit), respectively, and the luminance is measured. Based on the measurement results, the automatic light control device 105 is operated by clear sky 1, clear sky 2, cloudy sky 1, Select a step level such as cloudy day 2, daytime, nighttime, etc., and output a control command. By this control command, the circuit with the circuit name marked with ○ in the ON / OFF matrix 106 is operated and turned on The number of lighting fixtures in the entrance illumination 101, the basic illumination 102, and the exit illumination 103 is increased or decreased, or the illumination output tap is controlled to gradually increase the illuminance. It has changed.

  For example, if clear light 1 is output by the automatic light control device 105 and clear sky 1 is selected by the control command, the circuit names of clear sky 1, clear sky 2, cloudy sky 1, cloudy sky 2, daytime, and night are displayed in the lighting / extinction matrix 106. All circuits with are selected. Thereby, all the lighting devices are turned on, and consideration is given to reducing the difference in illuminance inside the tunnel with respect to the outside of the bright tunnel. Also, if the automatic light control device 105 outputs night-time on and the night-time on is selected by the control command, the lighting / light-off matrix 106 uses the circuit names of clear sky 1, clear sky 2, cloudy sky 1, cloudy sky 2 and daytime. Only the circuit having the circuit name “night” is selected. Thus, the lighting device is turned on so that the number of lighting is minimized, and consideration is given to reducing the difference in illuminance inside the tunnel with respect to the outside of the dark tunnel.

  Therefore, the higher the brightness near the outer pit of the tunnel 200, the higher the illuminance of the entrance illumination 101 and the exit illumination 103 is set so that a large illuminance difference does not occur between the tunnel 200 and the tunnel 200. . On the other hand, the lighting fixture of the basic part lighting 102 in the tunnel 200 selects the luminance by determining whether the luminance level measured by the luminance meters 104a and 104b is daytime, nighttime, or midnight, and the lighting fixture of the lighting fixture. The illuminance is changed stepwise by increasing or decreasing the number of lighting or controlling the lighting output tap.

  Similar prior art is also disclosed in, for example, Patent Document 1. In the tunnel illumination control system described in Patent Document 1, as shown in FIG. 7 of Patent Document 1, it is determined whether the outside of the tunnel is sunny or late at night according to the brightness detected by the brightness sensor. Based on the determined result, for example, if it is determined that the sky is clear, all the lighting fixtures are turned on, and if it is determined that it is midnight, a part of the lighting fixtures are turned on.

Japanese Patent Laying-Open No. 2005-19125 (paragraph numbers [0007] to [0010], FIG. 7)

  In the tunnel lighting control device described with reference to FIG. 14, the lighting fixtures of the entrance illumination 101 and the exit illumination 103 increase / decrease the number of lighting fixtures at each level according to external luminance measurement determination. Repeats turning on and off several times. Therefore, the luminous bulbs of the lighting fixtures of the entrance illumination 101 and the exit illumination 103 are subjected to stress due to the starting current at the time of lighting, and there is a problem that the life is shortened quickly. In addition, there was a problem that fine control of tunnel lighting could not be performed without turning on and off.

Furthermore, when the daytime and nighttime control is performed to reduce the number of lighting of the entrance illumination 101 and the exit illumination 103, the degree of uniformity that illuminates the inside of the tunnel 200 is reduced due to thinning lighting, which causes discomfort to the driving vision environment. There was also a problem.
Similarly, the lighting device of the basic part lighting 102 in the tunnel 200 has a problem that the luminous tube lighting life and the illuminance uniformity are lowered due to the increase or decrease in the number of lighting fixtures at each level by external luminance determination. .

  Further, in the case of a relatively long tunnel 200 having a tunnel length of 7 to 8 km or more, when the traffic volume in the tunnel 200 increases, when traffic congestion occurs, or when a large vehicle that emits a lot of smoke travels In addition, the smoke transmission rate is reduced by the exhaust gas, the environment inside the tunnel is deteriorated, and the view inside the tunnel 200 is deteriorated. Therefore, the basic part illumination 102 in the tunnel 200 is generally designed with illuminance assuming a tunnel smoke transmission rate of about 50%.

  However, in the entrance illumination 101, the basic illumination 102, and the exit illumination 103, the lighting fixtures are turned on at the brightness levels measured by the luminance meter 104a near the entrance of the tunnel 200 and the luminance meter 104b near the exit. Since it has increased or decreased, there has been a problem that when the smoke transmission rate is worse than expected, the visual environment is reduced due to insufficient illuminance, and when it is better than expected, the illuminance becomes excessive and inefficient power consumption occurs.

  In addition, the illumination fixtures of the entrance illumination 101, the basic illumination 102, and the exit illumination 103 have high illuminance and are naturally bright at the beginning of the installation and at the time of cleaning and replacement of the arc tube, but the illuminance decreases with use. Therefore, the number of luminaires is determined in advance so that the illuminance is about twice as much in consideration of the secular change. In other words, there is a problem in that excessive illuminance is generated from the time immediately after newly installed, cleaning, and arc tube replacement to the lapse of expected aging, resulting in inefficient power consumption.

  Therefore, the present invention has been made to solve the above-mentioned problems, and the object thereof is to reduce the lighting / extinguishing of lighting fixtures and to extend the life of the lighting fixtures with an inexpensive configuration, while lighting the entire area in the tunnel. An object of the present invention is to provide a tunnel lighting control device that performs light control uniformly and smoothly and realizes highly accurate illumination over a long period of time.

According to the invention of claim 1,
Entrance part illumination that illuminates the entrance part in the tunnel through which the vehicle passes with a plurality of lighting fixtures,
Exit part illumination for illuminating the exit part in the tunnel through which the vehicle passes by a plurality of lighting fixtures;
Basic part illumination that illuminates a basic part sandwiched between an entrance part and an exit part in a tunnel through which a vehicle passes by a plurality of lighting fixtures,
A signal processing device for determining the light output amount of the entrance illumination, the basic illumination, and the exit illumination; and
A control device that outputs a control signal for controlling increase / decrease in the light output amount of the entrance illumination, basic illumination, and exit illumination based on the determined light output amount;
A power conversion device that supplies power to the entrance illumination, the basic illumination, and the exit illumination so that the light output amount continuously increases or decreases according to the output from the control device;
It is characterized by providing.

  The tunnel illumination control device of the present invention employs continuous dimming that continuously changes the illumination of the entrance part, the basic part and the exit part of the luminaire, not thinning-out lighting or step dimming. Keep the environment constant and good.

According to invention of Claim 2,
In the tunnel lighting control device according to claim 1,
The signal processing unit determines a decrease in the light output amount due to the deterioration of deterioration over time of the entrance part illumination, the basic part illumination, and the exit part illumination, and the entrance part illumination, the basic part illumination, and the Including aged deterioration deterioration determination adjusting means for changing the setting of the power supply of the exit lighting,
The control device outputs a control signal including compensation control for a decrease in the light output amount of the luminaire by the newly set supply power.
It is characterized by that.

  At the time of lighting control, as input information for controlling the tunnel lighting, the dimming is performed in consideration of the aging fouling deterioration state, thereby enabling more appropriate lighting control.

According to invention of Claim 3,
In the tunnel lighting control device according to claim 1 or 2,
It has a smoke transmission meter installed in the tunnel,
The signal processing unit determines the optimum light output amount based on the smoke transmission rate measured by the smoke transmission meter, and according to the light output amount, the entrance illumination, the basic illumination, and the exit illumination Including smoke transmission rate determination adjustment means for changing the power supply,
The control device outputs a control signal including control for changing the light output of the entrance illumination, the basic illumination, and the exit illumination with the changed supply power.
It is characterized by that.

  In the illumination control, the smoke transmission rate in the tunnel is used as input information for controlling the tunnel illumination, so that more appropriate illumination control is possible.

According to invention of Claim 4,
In the tunnel lighting control device according to claim 3,
The signal processing unit includes means for constantly monitoring an abnormal change in the smoke transmission rate measured by the smoke transmission meter and detecting an abnormality.
It is characterized by that.

  Because abnormal changes in the smoke transmission rate measured by the smoke transmission meter are constantly monitored to detect abnormalities in the tunnel, the occurrence of an accident or the like can be detected. In addition, even in the event of a soot transmission meter failure, repair and other measures can be taken quickly to reduce the effects of dimming control in the tunnel.

According to the invention of claim 5,
In the tunnel illumination control device according to any one of claims 1 to 4,
An entrance luminance meter installed at the tunnel entrance,
An exit luminance meter installed at the tunnel exit,
With
The signal processing unit determines an optimum light output amount of the entrance illumination based on the luminance measured by the entrance luminance meter, and changes the supply power of the entrance illumination according to the light output amount. Brightness determination adjustment means,
An exit unit brightness determination adjusting means for determining an optimum light output amount of the exit unit illumination based on the luminance measured by the exit unit luminance meter, and changing a supply power of the exit unit illumination according to the light output amount; ,
Including
The control device outputs a control signal including change control of light output of the entrance illumination and exit illumination by the changed supply power.
It is characterized by that.

  In the illumination control, since the brightness outside the tunnel entrance and the brightness outside the tunnel exit are used as input information for controlling the tunnel illumination, more appropriate illumination control is possible.

According to the invention of claim 6,
In the tunnel lighting control device according to claim 5,
The signal processing unit includes means for constantly monitoring an abnormal change in luminance measured by the inlet luminance meter and the outlet luminance meter and detecting the abnormality.
It is characterized by that.

  Since abnormal changes in luminance measured by a luminance meter are constantly monitored to detect abnormalities in the tunnel, the occurrence of an accident or the like can be detected. In addition, even if a luminance meter fails, repairs can be handled quickly to reduce the effects of dimming control in the tunnel.

According to the invention of claim 7,
In the tunnel illumination control device according to any one of claims 1 to 6,
Entrance illuminance sensor installed at the entrance of the tunnel,
Basic part illuminance sensor installed in the basic part of the tunnel,
An exit illumination sensor installed at the exit of the tunnel;
With
The signal processing unit determines an optimum light output amount based on the illuminance measured by the entrance illuminance sensor, and changes the supply power of the entrance illumination according to the light output amount. Means,
Based on the illuminance measured by the basic unit illuminance sensor, the optimum light output amount is determined, and the basic unit illuminance determination adjusting means for changing the supply power of the basic unit illumination according to the light output amount;
Based on the illuminance measured by the exit portion illuminance sensor, the optimum light output amount is determined, and the exit portion illuminance determination adjusting means for changing the supply power of the exit portion illumination according to the light output amount,
Including
The control device outputs a control signal including control for changing the light output of the entrance illumination, the basic illumination, and the exit illumination with the changed supply power.
It is characterized by that.

  In the illumination control, since the illuminance in the tunnel is used as input information for controlling the tunnel illumination, more appropriate illumination control can be performed.

According to the invention described in claim 8,
In the tunnel lighting control device according to claim 7,
The signal processing unit includes means for constantly monitoring an abnormal change in illuminance measured by the entrance part illuminance sensor, the basic part illuminance sensor, and the exit part illuminance sensor to detect an abnormality.
It is characterized by that.

  Since abnormal changes in illuminance measured by the illuminance sensor are constantly monitored to detect abnormalities in the tunnel, the occurrence of an accident or the like can be detected. In addition, even if the illuminance sensor is out of order, it can be quickly repaired to reduce the influence of dimming control in the tunnel.

According to the invention of claim 9,
In the tunnel illumination control device according to any one of claims 4, 6, or 8,
The signal processing unit includes means for controlling the power conversion device so that the light output of the entrance part illumination, the basic part illumination, and the exit part illumination in the tunnel is set to a maximum output when the abnormality is detected.
It is characterized by that.

  When a lighting fixture abnormality, smoke transmission meter abnormality, luminance sensor abnormality, illuminance sensor abnormality, or abnormality in the tunnel is detected, the illuminance of all the luminaires in the tunnel is maximized. For this reason, at least the situation where the inside of the tunnel is dark is avoided, which contributes to ensuring safety in the tunnel.

  According to the present invention as described above, the lighting in the entire tunnel is uniformly and smoothly adjusted with an inexpensive configuration while reducing the lighting / extinguishing of the luminaire and extending its life. It is possible to provide a tunnel illumination control device that emits light and realizes highly accurate illumination over a long period of time.

  Hereinafter, a tunnel illumination control device according to the best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram of a tunnel illumination control device of this embodiment. As shown in FIG. 1, the tunnel lighting control device 1 includes a switchboard 10, a lighting device 20, and a sensor unit 30. The lighting device 20 includes an entrance illumination 21, a basic illumination 22, and an exit illumination 23 in detail. More specifically, the sensor unit 30 includes an inlet luminance meter 31a, an outlet luminance meter 31b, a smoke transmission meter 32, an inlet luminance sensor 33a, a basic luminance sensor 33b, and an outlet luminance sensor 33c. The entrance illuminance sensor 33a, the basic illuminance sensor 33b, and the exit illuminance sensor 33c may be connected to a signal line by a bus as shown in FIG. 1, or the signal line from the switchboard 10 may be connected to individual sensors. . The lighting device 20 and the sensor unit 30 as described above are connected to the switchboard 10, and the lighting device 20 is dimmed and controlled according to the sensor output from the sensor unit 30. This dimming control is not the on / off control as in the prior art, but controls the output of the lighting device 20 to increase and decrease continuously and smoothly to reduce the stress applied to the lighting device 20. In addition, the entrance part, basic | foundation part, and exit part of the tunnel 2 are the same as that of a prior art, and the overlapping description is abbreviate | omitted.

  Next, the configuration of each part will be described. FIG. 2 is a circuit block diagram of the switchboard, and FIG. 3 is a circuit block diagram of the power converter. In the power system circuit in the switchboard 10, as shown in FIG. 2, the power from the power supply 40 is divided into three systems: an entrance illumination system, a basic illumination system, and an exit illumination system. Yes. Specifically, the entrance illumination system includes a wiring breaker (MCCB) 11a, a power converter 12a, and a bypass device 13a. The basic illumination system includes a wiring breaker (MCCB) 11b, a power converter 12b, and a bypass device 13b. The exit illumination system includes a wiring breaker (MCCB) 11c, a power converter 12c, and a bypass device 13c. By dividing the system for each area as in this configuration, it is possible to deal with failure and lighting of lighting fixtures, electrical facilities, etc., by area, so that the influence of facilities can be dispersed.

The signal processing control device 14 is a combination of the signal processing device of the present invention and the control device, and includes an inlet luminance meter 31a, an outlet luminance meter 31b, a smoke transmission meter 32, and an inlet illuminance of the sensor unit 30. The sensor 33 a, the basic part illuminance sensor 33 b, and the outlet part illuminance sensor 33 c are connected, and a detection signal is input from each part of the sensor unit 30. Note that the signal processing device and the control device may be separated.
The signal processing control device 14 is connected to the power conversion device 12a, the bypass device 13a, the power conversion device 12b, the bypass device 13b, the power conversion device 12c, and the bypass device 13c, and performs power conversion control and bypass control.

The power converter of the entrance illumination system will be described in detail by way of example. As shown in FIG. 3, the power converter 40, the wiring breaker (MCCB) 11a, the power converter 12a, and the entrance illumination 21 are connected. In particular, the power converter 12a includes an input filter 121a, a power converter 122a, and an output filter 123a.
The circuit breaker (MCCB) 11a connected to the power supply 40 is for interrupting the power supply 40 and the entrance illumination system. The input filter 121a of the power conversion device 12a connected to the wiring breaker (MCCB) 11a removes unnecessary high-frequency noise and the like from the power signal and outputs it to the power conversion unit 122a.

  The power conversion unit 122a includes a plurality of power conversion elements (IGBTs), and performs PWM (pulse width modulation) control on input power having a sine wave equal wave shape. For example, as shown in FIG. 3, if the setting signal is small, the pulse width is modulated so that the pulse width is narrow, and if the setting signal is large, the pulse is modulated so that the pulse width is wide. When such a pulse-modulated power signal is output and passes through the output filter 123a, the output power changes in amplitude according to the width of the pulse width. In order to output such output power to the entrance illumination 21, the light output of the entrance illumination 21 increases and decreases continuously and smoothly.

  In such an entrance illumination system, in order to change the output power from the power converter 12a continuously and smoothly in a fully lit state, rather than dimming by increasing / decreasing the number of lighting as in the prior art, Can be illuminated relatively uniformly, and the number of times of turning on / off the entrance illumination 21 can be reduced. Furthermore, PWM (Pulse Width Modulation) control does not cause harmonic interference that adversely affects the power supply system or flicker failure that flickers the entrance illumination 21. Note that the configuration and effects of such an entrance illumination system are not particularly illustrated, but the same applies to the basic illumination system and the exit illumination system, and redundant description is omitted.

  In such an entrance illumination system, basic illumination system, and exit illumination system, bypass devices 13a, 13b, and 13c are provided, respectively, and the power conversion device 12a is controlled by a control signal from the signal processing control device 14. , 12b, 12c can be bypassed, and the electric power from the power source 40 can be directly input to the entrance illumination 21, the basic illumination 22, and the exit illumination 23 as the maximum output. By adopting such a bypass circuit, it is possible to provide a fail-safe function so that each device can be at a maximum illuminance by bypassing a device that has failed or undergoes maintenance. Furthermore, even in an abnormal situation such as a fire in the tunnel, it can contribute to ensuring safety by setting the maximum illumination. These bypass functions are effective when the power converters 12a, 12b, and 12c are out of order, inspected, and abnormal in the tunnel.

Next, determination / control by the signal processing control device 14 will be described with reference to the drawings. FIG. 4 is an explanatory diagram of the main processing of the signal processing control apparatus.
The signal processing control device 14 includes an aged contamination deterioration determination adjustment unit 141, a smoke transmission rate determination adjustment unit 142, an entrance luminance determination adjustment unit 143, an exit luminance determination adjustment unit 144, an entrance illuminance determination adjustment unit 145, and a basic unit illuminance. It functions as a determination adjustment unit 146 and an exit illuminance determination adjustment unit 147.

  The aged stain deterioration judgment adjusting means 141 functions in detail as shown in FIG. FIG. 5 is an explanatory diagram of the aging fouling deterioration determination adjustment processing. The aged stain deterioration determination adjusting means 141 further functions as an elapsed period reading means 141a, a lighting fixture illuminance reduction calculating means 141b, and a setting changing means 141c.

The signal processing control device 14 functions as an elapsed period reading unit 141a, and reads the number of days elapsed since the most recent lamp replacement.
The signal processing control device 14 functions as the lighting fixture illuminance reduction calculating unit 141b, and calculates the dimming level with respect to the elapsed days. This calculation is calculated from, for example, the elapsed days-dimming level characteristic as shown in FIG. In this characteristic diagram, the dimming level of the luminaire with respect to the number of days elapsed is shown based on experiments and empirical rules in advance, and the optimum dimming level can be easily derived if the number of days elapsed is determined. Such a one-to-one correspondence may be registered in a memory (not shown). Further, the characteristics may be obtained by calculation or the like.
The signal processing control device 14 functions as the setting changing unit 141c, and sets the dimming level on the day of the entrance illumination 21, the basic illumination 22, and the exit illumination 23, in particular. In the future, further processing will be performed based on this dimming level. In this way, the dimming level is increased in inverse proportion to the attenuation of the luminaire from the beginning of new installation of the entrance illumination 21, the basic illumination 22, and the exit illumination 23 or from the beginning of cleaning / lamp replacement. In this way, the basic dimming level is set.

Next, the smoke transmission rate determination adjustment unit 142 will be described.
The smoke transmission rate determination adjustment unit 142 functions in detail as shown in FIG. FIG. 7 is an explanatory diagram of the smoke transmission rate determination adjusting means. The smoke transmission rate determination adjusting unit 142 includes a smoke transmission rate reading unit 142a, a lighting fixture illuminance reduction calculating unit 142b, and a power control unit 142c.

The signal processing control device 14 functions as the smoke transmission rate reading unit 142 a and reads the smoke transmission rate in the tunnel 2 from the smoke transmission meter 32.
The signal processing control device 14 functions as a lighting fixture illuminance reduction calculating unit 142b and calculates a light control level with respect to the smoke transmission rate. This calculation is calculated from, for example, the smoke transmission rate-road surface illumination ratio characteristic as shown in FIG. In this characteristic diagram, the road surface illuminance ratio with respect to the smoke transmission rate is shown by prior experiments and empirical rules, etc. If the smoke transmission rate is determined, the corresponding road surface illuminance ratio is determined, and further this road surface illumination ratio is realized. Such an optimal dimming level can be easily determined. The one-to-one correspondence such as the smoke transmission rate, the road surface illumination ratio, and the dimming level may be registered in a memory (not shown). Further, the characteristics may be obtained by calculation or the like.
The signal processing control device 14 functions as the power control unit 142c, and particularly sets the dimming levels of the entrance illumination 21, the basic illumination 22, and the exit illumination 23. The dimming level is usually set so as to become brighter as the amount of smoke increases (the smoke transmission rate decreases). In this way, the light control level is increased in inverse proportion to the smoke transmission rate.

  If the smoke transmission rate from the smoke transmission meter 32 is found to be abnormally high or low, which is not normally possible, the smoke transmission meter 32 may be faulty or fire, rock fall, or collapse in the surrounding area. For example, an alarm device (not shown) may be used to notify an alarm by voice or display. In order to maximize the output level of the entrance illumination 21, the basic illumination 22, and the exit illumination 23 instead of or together with the alarm, the bypass device 13a bypasses the power converters 12a, 12b, and 12c. , 13b, 13c may be controlled. This contributes to ensuring safety in the tunnel.

Next, the entrance luminance determination adjustment unit 143 will be described.
The entrance luminance determination adjustment means 143 functions in detail as shown in FIG. FIG. 9 is an explanatory diagram of the entrance luminance determination adjustment means. The entrance luminance determination adjustment unit 143 includes an entrance luminance acquisition unit 143a, a comparison unit 143b, and a power control unit 143c.

The signal processing control device 14 functions as the entrance luminance acquisition means 143a, and reads the luminance around the entrance from the entrance luminance meter 31a.
The signal processing control device 14 functions as the comparison unit 143b, compares the measured luminance with the determination criterion, and selects, for example, one of the step levels such as clear sky 1, clear sky 2, cloudy sky 1, cloudy sky 2, daytime, and nighttime. To do.
The signal processing control device 14 functions as the power control means 143c, and outputs a control command to the power conversion device 12a so as to perform PWM modulation with a pulse width corresponding to the previously selected step level. And the power converter device 12a performs dimming control based on a control command.

  When the comparison means 143b finds that the luminance around the entrance is abnormally high or low from the entrance luminance meter 31a, it is a failure of the entrance luminance meter 31a or an abnormality such as a fire, falling rock, or collapse in the surrounding area. Therefore, for example, a warning by voice or display may be notified by an alarm device (not shown). In order to maximize the output level of the entrance illumination 21, the basic illumination 22, and the exit illumination 23 instead of or together with the alarm, the bypass device 13a bypasses the power converters 12a, 12b, and 12c. , 13b, 13c may be controlled. This contributes to ensuring safety in the tunnel.

Next, the outlet brightness determination adjustment unit 144 will be described.
The exit luminance determination adjusting means 144 functions in detail as shown in FIG. FIG. 10 is an explanatory diagram of the exit luminance determination adjustment means. The exit unit brightness determination adjustment unit 144 includes an exit unit brightness acquisition unit 144a, a comparison unit 144b, and a power control unit 144c.

The signal processing control device 14 functions as the outlet luminance acquisition means 144a, and reads the luminance around the inlet from the outlet luminance meter 31b.
The signal processing control device 14 functions as the comparison unit 144b, compares the measured luminance with the determination criterion, and selects, for example, one of the step levels of clear sky 1, clear sky 2, cloudy sky 1, cloudy sky 2, daytime, night, etc. To do.
The signal processing control device 14 functions as the power control unit 144c and outputs a control command to the power conversion device 12c so as to perform PWM modulation with a pulse width corresponding to the previously selected step level. And the power converter device 12c performs dimming control based on a control command.

  In addition, when it is found by the comparing means that the luminance around the outlet is abnormally high or low from the outlet luminance meter 31b, it may be a failure of the outlet luminance meter 31b or an abnormality such as a fire, falling rock, or collapse in the peripheral portion. Since the determination is made, for example, a warning by voice or display may be notified by an alarm device (not shown). In order to maximize the output level of the entrance illumination 21, the basic illumination 22, and the exit illumination 23 instead of or together with the alarm, the bypass device 13a bypasses the power converters 12a, 12b, and 12c. , 13b, 13c may be controlled. This contributes to ensuring safety in the tunnel.

Next, the entrance illuminance determination adjustment unit 145 will be described.
The entrance illuminance determination adjustment means 145 functions in detail as shown in FIG. FIG. 11 is an explanatory diagram of the entrance portion illuminance determination adjusting means. The entrance illuminance determination adjustment unit 145 includes an entrance illuminance acquisition unit 145a, a comparison unit 145b, and a power control unit 145c.

The signal processing control device 14 functions as the entrance illuminance acquisition unit 145a, and reads the illuminance at the entrance from the entrance illuminance sensor 33a.
The signal processing control device 14 functions as the comparison unit 145b and compares it with the set illuminance.
The signal processing control device 14 functions as the power control means 145c, and as a result of the comparison, the power is adjusted so as to increase the illuminance if the illuminance is low and to decrease the illuminance if the illuminance is high. A control command is output to the converter 12a. And the power converter device 12a performs dimming control based on a control command.

  When the comparison means reveals that the illuminance at the entrance is abnormally high or low from the entrance illuminance sensor 33a, it is determined that the entrance illuminance sensor 33a has failed or that a fire or lighting apparatus has failed in the surrounding area. Therefore, for example, a warning by voice or display may be notified by an alarm device (not shown). In order to maximize the output level of the entrance illumination 21, the basic illumination 22, and the exit illumination 23 instead of or together with the alarm, the bypass device 13a bypasses the power converters 12a, 12b, and 12c. , 13b, 13c may be controlled. This contributes to ensuring safety in the tunnel.

Next, the basic part illuminance determination adjustment unit 146 will be described.
The basic unit illuminance determination adjustment unit 146 functions in detail as shown in FIG. FIG. 12 is an explanatory diagram of the basic part illuminance determination adjusting means. The basic part illuminance determination adjustment unit 146 includes a basic part illuminance acquisition unit 146a, a comparison unit 146b, and a power control unit 146c.

The signal processing control device 14 functions as the basic part illuminance acquisition unit 146a, and reads the illuminance of the basic part from the basic part illuminance sensor 33b.
The signal processing control device 14 functions as the comparison unit 146b and compares it with the set illuminance.
The signal processing control device 14 functions as the power control unit 146c, and as a result of the comparison, the power is modulated so as to increase the illuminance if the illuminance is low and to decrease the illuminance if the illuminance is high. A control command is output to the converter 12b. And the power converter device 12b performs dimming control based on a control command.

  If the comparison means 146b reveals that the basic part illuminance sensor 33b indicates that the basic part illuminance is abnormally high or low, it indicates that the basic part illuminance sensor 33b is faulty, or that there is a fire or lighting equipment failure in the peripheral part. Since the determination is made, for example, a warning by voice or display may be notified by an alarm device (not shown). In order to maximize the output level of the entrance illumination 21, the basic illumination 22, and the exit illumination 23 instead of or together with the alarm, the bypass device 13a bypasses the power converters 12a, 12b, and 12c. , 13b, 13c may be controlled. This contributes to ensuring safety in the tunnel.

Next, the exit illuminance determination adjustment unit 147 will be described.
The exit illuminance determination adjustment means 147 functions in detail as shown in FIG. FIG. 13 is an explanatory diagram of the exit portion illuminance determination adjusting means. The exit illuminance determination adjustment unit 147 includes an exit illuminance acquisition unit 147a, a comparison unit 147b, and a power control unit 147c.

The signal processing control device 14 functions as the exit illuminance acquisition unit 147a, and reads the illuminance at the entrance from the exit illuminance sensor 33c.
The signal processing control device 14 functions as the comparison unit 147b and compares it with the set illuminance.
The signal processing control device 14 functions as the power control unit 147c, and as a result of the comparison, the power is so modulated that the illuminance is increased if the illuminance is low and the illuminance is decreased if the illuminance is high, and PWM modulation is performed with a pulse width that decreases the illuminance. A control command is output to the converter 12c. And the power converter device 12c performs dimming control based on a control command.

  If the comparison means 147b reveals that the illuminance at the exit portion is abnormally high or low from the exit portion illuminance sensor 33c, the failure of the exit portion illuminance sensor 33c or the failure of a fire or lighting fixture in the surrounding area. Since the determination is made, for example, a warning by voice or display may be notified by an alarm device (not shown). In order to maximize the output level of the entrance illumination 21, the basic illumination 22, and the exit illumination 23 instead of or together with the alarm, the bypass device 13a bypasses the power converters 12a, 12b, and 12c. , 13b, 13c may be controlled. This contributes to ensuring safety in the tunnel.

  The signal processing control device 14 includes an aged stain deterioration determination adjustment unit 141, a smoke transmission rate determination adjustment unit 142, an entrance luminance determination adjustment unit 143, an exit luminance determination adjustment unit 144, an entrance illuminance determination adjustment unit 145, a basic It functions as the illuminance determination adjustment means 146 and the exit illuminance determination adjustment means 147 to determine the dimming levels of the entrance illumination 21, the basic illumination 22, and the exit illumination 23. 22 and the dimming level of the exit illumination 23 may be different. Therefore, the dimming level with the highest illuminance among the various dimming levels may be preferentially adopted. Thereby, since the situation where the inside of a tunnel is dark at least can be avoided, there exists an advantage of contributing to the safety improvement in a tunnel.

The tunnel lighting control device of the present invention has been described above.
According to the present invention, a PWM (Pulse Width Modulation) power conversion device is provided for each system corresponding to the tunnel area. In addition, a necessary number of illuminance sensors are provided in the tunnel, and a measurement value is input to the control unit. By providing feedback control that determines and corrects whether the control amount output from the camera follows the target illuminance, the illumination in each area can be uniformly and smoothly controlled. Can contribute to improving the visual environment in the tunnel.
Furthermore, dimming is performed on the power system side, so that dimming is achieved without unnecessarily increasing the number of times the lighting fixtures are turned off and on, thereby contributing to a longer life of the lighting fixtures.

In addition, since the output voltage of each system is changed by the power converter, the dimming level can be adjusted continuously over a wide range without changing the lighting equipment of the existing tunnel. Yes.
Furthermore, by combining the smoke transmission rate calculation control and lighting fixture aging calculation control with a power converter that enables highly precise dimming, by limiting unnecessary lighting while maintaining the viewing environment in the tunnel, Various power consumption can be reduced.

It is explanatory drawing of the tunnel illumination control apparatus of the best form for implementing this invention. It is a circuit block diagram of a switchboard. It is a circuit block diagram of a power converter. It is explanatory drawing of the main process of a signal processing control apparatus. It is explanatory drawing of aged deterioration deterioration determination adjustment means. It is an elapsed days-light control level characteristic view. It is explanatory drawing of a soot transmission rate determination adjustment means. It is a smoke transmittance-road surface illuminance ratio characteristic diagram. It is explanatory drawing of an entrance part brightness | luminance determination adjustment means. It is explanatory drawing of an exit part brightness | luminance determination adjustment means. It is explanatory drawing of an entrance part illumination intensity determination adjustment means. It is explanatory drawing of a basic part illumination intensity determination adjustment means. It is explanatory drawing of an exit part illumination intensity determination adjustment means. It is explanatory drawing of the tunnel illumination control apparatus of a prior art.

Explanation of symbols

1: Tunnel lighting control device 10: Switchboards 11a, 11b, 11c: Circuit breaker for wiring (MCCB)
12a, 12b, 12c: power converter 121a: input filter 122a: power converter 123a: outlet filters 13a, 13b, 13c: bypass device 14: signal processing control device 141: aged contamination deterioration judgment adjusting means 141a: elapsed period reading means 141b: Lighting fixture illuminance reduction calculating means 141c: Setting change means 142: Smoke transmittance determination adjusting means 142a: Smoke transmittance reading reading means 142b: Lighting fixture illuminance reduction calculating means 142c: Power control means 143: Entrance luminance determination adjusting means 143a : Entrance portion luminance acquisition means 143b: comparison means 143c: power control means 144: exit portion brightness determination adjustment means 144a: exit portion brightness acquisition means 144b: comparison means 144c: power control means 145: entrance portion illuminance determination adjustment means 145a: entrance Part illuminance acquisition means 145b: comparison means 145c Power control means 146: Basic part illuminance determination adjustment means 146a: Basic part illuminance acquisition means 146b: Comparison means 146c: Power control means 147: Exit part illuminance determination adjustment means 147a: Exit part illuminance acquisition means 147b: Comparison means 147c: Power control Means 20: Lighting device 21: Entrance illumination 22: Basic illumination 23: Exit illumination 30: Sensor 31a: Entrance luminance meter 31b: Exit luminance meter 32: Smoke transmissometer 33a: Entrance illumination sensor 33b: Basic portion illuminance sensor 33c: Exit portion illuminance sensor 2: Tunnel 3: Vehicle

Claims (9)

Entrance part illumination that illuminates the entrance part in the tunnel through which the vehicle passes with a plurality of lighting fixtures,
Exit part illumination for illuminating the exit part in the tunnel through which the vehicle passes by a plurality of lighting fixtures;
Basic part illumination that illuminates a basic part sandwiched between an entrance part and an exit part in a tunnel through which a vehicle passes by a plurality of lighting fixtures,
A signal processing device for determining the light output amount of the entrance illumination, the basic illumination, and the exit illumination; and
A control device that outputs a control signal for controlling increase / decrease in the light output amount of the entrance illumination, basic illumination, and exit illumination based on the determined light output amount;
A power conversion device that supplies power to the entrance illumination, the basic illumination, and the exit illumination so that the light output amount continuously increases or decreases according to the output from the control device;
A tunnel lighting control device comprising: In the tunnel lighting control device according to claim 1,
The signal processing unit determines a decrease in the light output amount due to the deterioration of deterioration over time of the entrance part illumination, the basic part illumination, and the exit part illumination, and the entrance part illumination, the basic part illumination, and the Including aged deterioration deterioration determination adjusting means for changing the setting of the power supply of the exit lighting,
The control device outputs a control signal including compensation control for a decrease in the light output amount of the luminaire by the newly set supply power.
A tunnel lighting control device characterized by that. In the tunnel lighting control device according to claim 1 or 2,
It has a smoke transmission meter installed in the tunnel,
The signal processing unit determines the optimum light output amount based on the smoke transmission rate measured by the smoke transmission meter, and according to the light output amount, the entrance illumination, the basic illumination, and the exit illumination Including smoke transmission rate determination adjustment means for changing the power supply,
The control device outputs a control signal including control for changing the light output of the entrance illumination, the basic illumination, and the exit illumination with the changed supply power.
A tunnel lighting control device characterized by that. In the tunnel lighting control device according to claim 3,
The signal processing unit includes means for constantly monitoring an abnormal change in the smoke transmission rate measured by the smoke transmission meter and detecting an abnormality.
A tunnel lighting control device characterized by that. In the tunnel illumination control device according to any one of claims 1 to 4,
An entrance luminance meter installed at the tunnel entrance,
An exit luminance meter installed at the tunnel exit,
With
The signal processing unit determines an optimum light output amount of the entrance illumination based on the luminance measured by the entrance luminance meter, and changes the supply power of the entrance illumination according to the light output amount. Brightness determination adjustment means,
An exit unit brightness determination adjusting means for determining an optimum light output amount of the exit unit illumination based on the luminance measured by the exit unit luminance meter, and changing a supply power of the exit unit illumination according to the light output amount; ,
Including
The control device outputs a control signal including change control of light output of the entrance illumination and exit illumination by the changed supply power.
A tunnel lighting control device characterized by that. In the tunnel lighting control device according to claim 5,
The signal processing unit includes means for constantly monitoring an abnormal change in luminance measured by the inlet luminance meter and the outlet luminance meter and detecting the abnormality.
A tunnel lighting control device characterized by that. In the tunnel illumination control device according to any one of claims 1 to 6,
Entrance illuminance sensor installed at the entrance of the tunnel,
Basic part illuminance sensor installed in the basic part of the tunnel,
An exit illumination sensor installed at the exit of the tunnel;
With
The signal processing unit determines an optimum light output amount based on the illuminance measured by the entrance illuminance sensor, and changes the supply power of the entrance illumination according to the light output amount. Means,
Based on the illuminance measured by the basic unit illuminance sensor, the optimum light output amount is determined, and the basic unit illuminance determination adjusting means for changing the supply power of the basic unit illumination according to the light output amount;
Based on the illuminance measured by the exit portion illuminance sensor, the optimum light output amount is determined, and the exit portion illuminance determination adjusting means for changing the supply power of the exit portion illumination according to the light output amount,
Including
The control device outputs a control signal including control for changing the light output of the entrance illumination, the basic illumination, and the exit illumination with the changed supply power.
A tunnel lighting control device characterized by that. In the tunnel lighting control device according to claim 7,
The signal processing unit includes means for constantly monitoring an abnormal change in illuminance measured by the entrance part illuminance sensor, the basic part illuminance sensor, and the exit part illuminance sensor to detect an abnormality.
A tunnel lighting control device characterized by that. In the tunnel illumination control device according to any one of claims 4, 6, or 8,
The signal processing unit includes means for controlling the power conversion device so that the light output of the entrance part illumination, the basic part illumination, and the exit part illumination in the tunnel is set to a maximum output when the abnormality is detected.
A tunnel lighting control device characterized by that.

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