JP2009266604A - Lighting system for tunnel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting system for a tunnel allowing a monitoring worker to easily find out an unlit light source, in a lighting system for a tunnel sequentially lighting a part of a plurality of light sources possessed by each of luminaires. <P>SOLUTION: Luminaires 11, 12, ..., 1n are arranged in a tunnel 10 along its length direction, and each luminaire has fluorescent lamps 1A and 1B in two upper and lower tiers. The fluorescent lamps 1A and 1B are changed over to a state where the upper-tier fluorescent lamp 1A is lit by a control device 21, 22, ..., or 2n and a state where the lower-tier fluorescent lamp 1B is lit by the control device at a certain time interval. When the control device 22 detects that either of the upper fluorescent lamp 1A and the lower fluorescent lamp 1B of its own luminaire 12 is brought into an unlit state, the control device lights the fluorescent lamp 1B or 1A on the side different from the fluorescent lamp 1A or 1B that is brought into the unlit state, and outputs an unlit signal to the adjacent control devices 21 and 23. When receiving the unlit signal, the adjacent control devices 21 and 23 light both the upper and lower fluorescent lamps 1A and 1B of their own luminaires 11 and 13. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a tunnel lighting system, and more specifically, tunnel lighting in which a plurality of lighting fixtures are provided along a length direction in a tunnel, and each lighting fixture controls lighting of a lighting facility having a plurality of light sources. About the system.

  Conventionally, a tunnel lighting facility has been known in which a plurality of lighting fixtures are provided along the length direction in a tunnel, and the control device controls the illuminance of the lighting fixtures depending on whether or not a vehicle enters the tunnel. (For example, refer to Patent Document 1).

  In addition, the number of light sources to be turned on according to the target brightness, with each lighting fixture being a multi-lamp type with multiple light sources so that the brightness in the tunnel can be different between daytime and nighttime There is known a lighting device that increases or decreases the amount of light (for example, see Patent Document 2). In this lighting device, for example, when four fluorescent lamps are provided as light sources, 50% of brightness is obtained when two of the four are turned on, and 25% when only one is turned on. Can be obtained.

On the other hand, there is a lighting system in which each lighting fixture provided in the tunnel is a multi-lamp type having a plurality of light sources, and a part of the plurality of light sources is sequentially turned on in order to extend the life of the lighting fixtures. Specifically, as shown in FIG. 7, a plurality of lighting fixtures 11, 12,... 1n are provided along the length direction of the tunnel 10, and each lighting fixture has fluorescent lamps 1A, 1B arranged in two upper and lower stages. For example, there is an illumination system that switches between a state in which the upper fluorescent lamp 1A is lit and a state in which the lower fluorescent lamp 1B is lit every 24 hours. In this system, the life of each luminaire is approximately twice that of an individual fluorescent lamp, so the frequency of maintenance work for replacing the fluorescent lamp can be greatly reduced.
JP 2004-127845 A JP 2007-188785 A

  However, in the above lighting system, since the upper and lower fluorescent lamps 1A and 1B are alternately turned on, the monitoring worker gets on the patrol car 20 and travels through the tunnel 10 to visually check the lighting state of the lighting fixture. When checking, it may not be possible to find a fluorescent lamp that has been turned off.

  Specifically, while the upper fluorescent lamp 1A of each lighting fixture is lit, for example, the upper fluorescent lamp 1A of one lighting fixture is not lit due to filament breakage or the like. When the control is switched so that the fluorescent lamp 1B is lit, all of the lower fluorescent lamps 1B are normally lit, so the monitoring worker cannot find the upper fluorescent lamp 1A that has been turned off. .

  Moreover, even if the monitoring work is performed after the fluorescent lamps 1A and 1B, which are either above or below the lighting fixture, are not turned on and before the fluorescent lamps to be turned on are switched in the upper and lower stages, the monitoring work is performed. Since the worker checks while running on the patrol vehicle 20, there is a high possibility that the fluorescent lamp which is not lit and dark will be overlooked.

  In order to prevent oversight of the monitoring worker as described above, a warning lamp such as an LED is provided for each lighting fixture, and when any one of the upper and lower fluorescent lamps 1A, 1B is not lit, Although it is conceivable to turn on the warning lamp, a considerably large warning lamp must be provided in order to prevent an oversight of a monitoring operator who performs inspection while traveling, which increases equipment cost.

  Further, as a method that does not incur equipment costs, it is conceivable that when one of the upper and lower fluorescent lamps 1A, 1B of the lighting fixture is not lit, the normal fluorescent lamp is controlled to blink. It is unfavorable for safety because it will unnecessarily draw the attention of a general driver traveling in the tunnel toward the wall surface of the tunnel.

  Therefore, the present invention solves the above-described problem, and it is necessary to incur a new equipment cost in a tunnel lighting system that sequentially turns on a part of a plurality of light sources included in each of the lighting fixtures provided in the tunnel. It is an object of the present invention to provide a tunnel lighting system that allows a monitoring worker to easily find an unlighted light source.

  In order to achieve the above object, the invention of claim 1 is provided along a length direction in a tunnel, and a plurality of lighting fixtures each having a plurality of light sources, and a plurality of light sources included in each of the lighting fixtures. And a control device that sequentially controls lighting of a part of the lighting system for a tunnel, comprising: a sensor that individually detects non-lighting of the plurality of light sources; and When non-lighting is detected, the number of light sources in the lighting fixture adjacent to the lighting fixture having the non-lighting light source is increased.

  According to a second aspect of the present invention, in the tunnel illumination system according to the first aspect, the control device further includes a non-lighting light source when the sensor detects non-lighting of any one of the light sources. All the light sources are turned off.

  According to the invention of claim 1, when a non-lighting light source is detected, the number of lighting light sources of the lighting equipment adjacent to the lighting equipment having the non-lighting light source is increased. It is possible to easily find a light source that is not turned on, and to maintain the luminaire early.

  According to the invention of claim 2, when a non-lighting light source is detected, the number of lighting light sources of the lighting equipment adjacent to the lighting equipment having the non-lighting light source is increased. Since all the light sources in the luminaire having the light sources are turned off, it is possible to suppress power consumption while maintaining the ease of finding unlit light sources by the monitoring worker.

  Hereinafter, a tunnel illumination system according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5. As shown in FIG. 1, the tunnel illumination system 1 according to the present embodiment is provided in plural along the length direction in the tunnel 10, and each has fluorescent lamps 1A and 1B (light sources) in two upper and lower stages. Control devices 21, 22... 2n for controlling lighting so that the fluorescent lamps 1 </ b> A and 1 </ b> B of the respective lighting fixtures are alternately turned on, and a management device 2 connected over all the control devices. And comprising. The management device 2 gives lighting control information for the fluorescent lamps 1A, 1B to be dimmed to the control devices 21, 22,.

  The configurations of the lighting fixtures 11, 12,... 1n and the control devices 21, 22,... 2n are the same, and a set of the lighting fixtures 11 and the control device 21 will be described below with reference to FIG. The luminaire 11 includes fluorescent lamps 1A and 1B arranged in two upper and lower stages, inverters 3A and 3B that perform dimming control of each fluorescent lamp, and illuminance sensors 4A and 4B arranged in the vicinity of each fluorescent lamp. Prepare. Instead of the fluorescent lamps 1A and 1B, other types of light sources such as LEDs can be used.

  The inverters 3A and 3B control the light output of each fluorescent lamp 1A and 1B according to the dimming signal cs transmitted by the control device 21. Further, the on / off control of the AC power supply AC supplied to the inverters 3A and 3B is performed by the on / off switch 5 in the control device 21, whereby the lighting control of each fluorescent lamp 1A and 1B is performed. Specifically, the on / off switch 5a connected to the upper fluorescent lamp 1A is turned on / off to turn on / off the fluorescent lamp 1A. Similarly, the on / off switch 5b connected to the lower fluorescent lamp 1B is turned on / off. As a result, the fluorescent lamp 1B is turned on / off. The illuminance sensors 4A and 4B output the detected illuminance value to the control device 21 as an illuminance signal ss.

  The control device 21 is adjacent to a microprocessor 6 that outputs an on / off signal nfs to the on / off switch 5 to perform an on / off operation, and when the microprocessor 6 determines that any one of the fluorescent lamps 1A and 1B is not lit. A non-lighting signal output circuit 7 that outputs a non-lighting signal hs to the control device 22, and a non-lighting signal input circuit 8 that inputs a low signal to the microprocessor 6 by the non-lighting signal hs from the adjacent control device 22. . Further, the connection port 6p of the microprocessor 6 to the management device 2 includes non-voltage contacts 9a and 9b that are turned on and off by the control signals ta and tb from the management device 2.

  The microprocessor 6 turns on the on / off switch 5a when the no-voltage contact 9a is turned on to light the upper fluorescent lamp 1A, and turns on the on-off switch 5b when the no-voltage contact 9b is turned on. The fluorescent lamp 1B is turned on. The management device 2 switches the output of the control signals ta and tb every 24 hours, for example, so that the state in which the upper fluorescent lamp 1A is lit and the state in which the lower fluorescent lamp 1B is lit are 24 hours. It is switched every time. Control in which the upper fluorescent lamp 1A and the lower fluorescent lamp 1B are alternately turned on as described above is referred to as cyclic lighting.

  The non-lighting signal output circuit 7 includes a non-voltage contact 31 that is turned on / off by a signal from the microprocessor 6. When the non-voltage contact 31 is turned on, the ports p1 and p2 are conducted. The non-lighting signal input circuit 8 includes ports p3 and p4 respectively connected to the ports p1 and p2 of the adjacent control device 22, a photocoupler 32 connected to the port p4, and a resistor r on the collector side of the photocoupler 32. And a voltage source P connected to each other.

  Accordingly, the non-lighting signal input circuit 8 turns on the photocoupler 32 and switches the input of the port p5 of the microprocessor 6 to a low signal when the ports p1 and p2 of the adjacent control device 22 are turned on. The microprocessor 6 detects that the adjacent control device 22 is transmitting a non-lighting signal when the input of the port p5 is switched to the low signal. In other words, the microprocessor 6 recognizes that one of the fluorescent lamps 1A and 1B of the adjacent lighting fixture 22 is not lit.

  Next, the procedure for detecting the dimming control and non-lighting of the fluorescent lamps 1A and 1B of the self-illuminating device 11 executed by the microprocessor 6 will be described with reference to the flowchart of FIG. First, the microprocessor 6 acquires a detection value as the illuminance signal ss from the illuminance sensor 4A or 4B (# 1) and compares it with the target illuminance received from the management device 2 in advance (# 2). If the detected illuminance is greater than the target illuminance (YES in # 2), the dimming signal cs is transmitted to the inverter 3A or 3B to reduce the output of the fluorescent lamp 1A or 1B (# 3).

  If the detected illuminance is smaller than the target illuminance (NO in # 2), it is determined whether or not it matches the target illuminance (# 4). If they match (YES in # 4), the fluorescent lamp If the output of 1A or 1B is not changed (# 5) and does not match (NO in # 4), the dimming signal cs is transmitted to the inverter 3A or 3B to output the output of the fluorescent lamp 1A or 1B. Raise (# 6).

  The microprocessor 6 again acquires the detection value as the illuminance signal ss from the illuminance sensor 4A or 4B (# 7), and compares it with the minimum illuminance stored in advance (# 8). If the detected illuminance is greater than the minimum illuminance (YES in # 8), the procedure is terminated because it is not in the unlit state. When the detected illuminance is lower than the minimum illuminance (NO in # 8), it is determined that the fluorescent lamp 1A or 1B is not lit due to filament breakage or the like (# 9). The target illuminance is generally set to a relatively high value during the daytime and is set to a relatively low value at nighttime.

  Next, a procedure executed when the microprocessor 6 detects non-lighting will be described with reference to the flowcharts of FIGS. FIG. 4A shows a processing procedure when the lighting device 11 is not lit, and FIG. 4B shows a processing procedure when the adjacent lighting device 12 is not lit. First, when the microprocessor 6 detects that the fluorescent lamp 1A or 1B is not lit for the self-illuminating device 11 (YES in # 11), the microprocessor 6 operates the on / off switch 5 to determine that the fluorescent lamp 1A is not lit. Alternatively, the fluorescent lamp 1B or 1A on the side different from 1B is turned on (# 12), and the no-voltage contact 31 of the non-lighting signal output circuit 7 is turned on (# 13). When the no-voltage contact 31 of the non-lighting signal output circuit 7 is turned on, the non-lighting signal hs is input to the non-lighting signal input circuit 8 of the adjacent control device 22. If the non-lighting is not detected (NO in # 11), the microprocessor 6 turns off the no-voltage contact 31 of the non-lighting signal output circuit 7 (# 14).

  Further, the microprocessor 6 determines whether or not the input of the port p5 is switched to a low signal (# 21). If the input is switched (YES in # 21), any of the adjacent lighting fixtures 12 is determined. It is determined that the fluorescent lamps 1A and 1B are not lit, and both the on / off switches 5a and 5b are turned on to turn on both the fluorescent lamps 1A and 1B of the lighting device 11 (# 22). When the input of the port p5 is not switched to the low signal (NO in # 21), the microprocessor 6 turns the on / off switch 5 on and off at the normal switching timing according to the control signals ta and tb from the management device 2 To do. That is, the fluorescent lamps 1A and 1B are turned on cyclically.

  FIG. 5 shows a mode in which the microprocessor 6 executes the non-lighting processing procedure when the upper fluorescent lamp 1A of the lighting fixture 12 is not lighted. Specifically, the normal fluorescent lamp 1B at the lower stage of the lighting fixture 12 is turned on instead of the non-lighting fluorescent lamp 1A, and the upper and lower fluorescent lamps 1A and 1B of the lighting fixtures 11 and 13 on both sides of the lighting fixture 12 are both. Illuminated. Since both the upper and lower fluorescent lamps 1A and 1B are turned on, the monitoring worker can easily find the position of the luminaire 12 having the unlit fluorescent lamp 1A. Further, since the number of lighting fixtures 11 and 13 on both sides of the lighting fixture 12 in which the non-lighting fluorescent lamps 1A and 1B are generated increases, the illuminance of the surroundings does not decrease, and the safety of the vehicle traveling in the tunnel 10 Sex is secured.

  As described above, since the illuminance around the lighting fixture 12 where the non-lighting fluorescent lamps 1A and 1B are generated is sufficiently secured, the lighting fixture 12 where the non-lighting fluorescent lamps 1A and 1B are generated It is also possible not to perform the process of lighting the fluorescent lamp 1B or 1A on the side different from the fluorescent lamp 1A or 1B that is turned on. The processing procedure in this case can be executed by omitting # 12 in the flowchart of FIG. An aspect when this processing procedure is executed is shown in FIG. Since the number of fluorescent lamps 1A and 1B to be turned on is reduced, it is possible to suppress power consumption while maintaining the ease of finding a non-lighting light source by a monitoring worker.

  In the present invention, each lighting fixture 11, 12,... Has three or more fluorescent lamps, and one or a plurality of fluorescent lamps of each lighting fixture are sequentially turned on by a control signal from the management device 2. It can be easily applied to a tunnel lighting system.

  Furthermore, with respect to the luminaire adjacent to the luminaire in which the unlit fluorescent lamp is detected, the illuminance of the lit fluorescent lamp may be increased instead of increasing the number of fluorescent lamps to be lit. Good.

The figure which shows the whole lighting system for tunnels concerning one Embodiment of this invention. The block diagram which shows 1 set of lighting fixtures and control apparatus of the lighting system for tunnels. The flowchart which shows the detection procedure of the non-lighting light source in the illumination system for tunnels. (A) is a flowchart showing a processing procedure when a non-lighting light source is generated in the lighting device for the tunnel in the tunnel lighting system, and (b) is a non-lighting light source generated in an adjacent lighting device in the tunnel lighting system. The flowchart which shows the process sequence when doing. The figure which shows the concrete lighting aspect when a non-lighting light source generate | occur | produces in the lighting fixture in the lighting system for tunnels. The figure which shows another lighting aspect when a non-lighting light source generate | occur | produces in the lighting fixture in the lighting system for tunnels. The figure which shows the whole tunnel illumination system in the past.

Explanation of symbols

1 Tunnel lighting system 1A, 1B Fluorescent lamp (light source)
4A, 4B Illuminance sensor 10 Tunnel 11, 12, 1n Lighting fixture 21, 22, 2n Controller

Claims (2)

A plurality of lighting fixtures provided along a length direction in the tunnel, each having a plurality of light sources, and a control device that sequentially controls lighting of a part of the plurality of light sources each of the lighting fixtures. In tunnel lighting systems,
A sensor for individually detecting non-lighting of the plurality of light sources;
The controller is
When the sensor detects non-lighting of any of the light sources, the lighting system for tunnels increases the number of light sources in the lighting equipment adjacent to the lighting equipment having the non-lighting light source. The controller is
2. The tunnel illumination system according to claim 1, wherein when the sensor detects non-lighting of any of the light sources, all the light sources in the lighting fixture having the non-lighted light source are further turned off.