JPH11120484A - Illuminating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an illuminating device capable of further improving the safety of a driver of a vehicle on a road. SOLUTION: In a control part 1, plural lighting parts 21 -24 are bus-connected through a signal line Ls and the respective lighting parts 21 -24 are respectively equipped with light sources 211 -214 . A guiding means is constituted of the plural light sources 211 , 212 , 213 and 214 . The control part 1 prepares a control signal for controlling the plural lighting parts 2 based on the output of a vehicle detector 3 and transmits it to the light line Ls. Each of the lighting parts 21 , 22 , 23 , and 24 is provided with a control signal monitoring means for monitoring the reception of the control signal for every constant period and an abnormal time guiding means. The abnormal time guiding means changes the lighting state of each of the light sources 211 , 212 , 213 and 214 to guide a vehicle at the time of detecting the absence of the input of the control signal even after the lapse of a constant time based on the output of the control signal monitoring means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device which constitutes a guide light system for individually controlling a plurality of light sources according to a speed of a vehicle detected in a certain area of a road to guide a driver. is there.

[0002]

2. Description of the Related Art A guide light system is installed in an area with poor visibility, such as a curve of a road, and has a function of informing a driver of the presence of an oncoming vehicle with light in advance to call attention, and a function of the curve. It also has the function of informing the driver in advance of the existence and shape of the curve to alert the driver.

In order to realize the above function, a guide light system of this kind is provided with a plurality of light sources arranged at predetermined intervals along a curve or the like, and is installed in front of a curve entrance when viewed from a vehicle driver. A vehicle detector that detects the entry of the vehicle into the curve, and a control unit that controls a guidance unit including a plurality of light sources in a predetermined blinking pattern based on detection information output from the vehicle detector. . Here, a plurality of lighting units having a plurality of light sources or light sources,
A blinking pattern is set so that the driver sees the light as if traveling.

In the above guide light system, there is a light source using a light emitting diode (LED) as a light source.
A plurality of lighting units having a light source are connected by bus wiring, and the lighting units are collectively controlled by a control unit.

[0005]

However, in the above guide light system, no measures are taken against abnormalities in the guide light system, and if an abnormality occurs in the guide light system due to some trouble, the guide light system will not operate. If the above functions cannot be realized due to such factors, the guiding effect will be lost,
There was a risk that safe guidance to the driver would not be possible.

In the above guide light system, the control unit controls the lighting unit only based on the output of the vehicle detection unit. Therefore, the environment and state around the curve, for example, weather and time zone Alternatively, depending on road conditions, there is a possibility that the guidance effect for the driver may be reduced. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lighting device that can further enhance the safety of a driver of a vehicle on a road.

[0007]

According to a first aspect of the present invention, there is provided a vehicle detecting device for detecting presence or absence of a vehicle and a speed of the vehicle, and a plurality of light sources arranged along a road. And a bus connected to a signal line through which a control signal including address data and control data from the control unit is transmitted, and a unique address is set. When the address data of the control signal matches the unique address, the control signal is transmitted. A plurality of the lighting units that respectively control the light amounts of the respective light sources based on the control data, and when the vehicle detection unit detects the vehicle by transmitting the control signal based on the output of the vehicle detection unit. The control unit that sequentially changes the light amounts of the light sources via the lighting units so as to guide the vehicle, and the function of detecting an abnormality in the device and guiding the vehicle even in the event of an abnormality is maintained. Abnormality inducing means for changing the lighting state of each of the light sources so as to notify the outside that there is an abnormality in the apparatus, and when an abnormality occurs in the apparatus. However, by turning on the light source constituting the guidance means, the driver can be informed of the shape of the road and guided,
The occurrence of an abnormality in the device can be notified to the outside, and the safety of the driver of the vehicle on the road can be improved as compared with the related art.

According to a second aspect of the present invention, in the first aspect of the present invention, the control section has means for transmitting a control signal at regular intervals, so that the light amount of the light source can be changed at regular intervals. According to a third aspect of the present invention, in the first or second aspect of the present invention, since the vehicle detecting section has a means for transmitting a detection signal indicating a detection result at a constant cycle, the control section detects the detection signal at a constant cycle. Can receive signals.

The invention according to claim 4 is the invention according to claims 1 to 3.
In the invention, the lighting section has control signal monitoring means for monitoring the reception of the control signal, and the abnormal time inducing means has detected that the control signal monitoring means has not received the control signal continuously for a predetermined time or more. Sometimes, the light source of the lighting unit is turned on in a special lighting state, so that the lighting unit has a special lighting state even when an abnormality of the device such as disconnection of the signal line or inability of the control unit to transmit a control signal occurs. Therefore, the safety of the driver of the vehicle on the road can be improved as compared with the related art.

[0010] The invention of claim 5 is the invention of claims 1 to 4.
In the invention, the lighting unit, the light source, a terminal unit that creates a signal that controls the light amount of the light source is set the unique address, a lighting circuit unit that lights the light source based on a signal from the terminal unit The power supply for supplying power to the terminal unit and the power supply for supplying power to the lighting circuit unit are supplied through different paths. Therefore, when a light source that requires high-frequency lighting is used, the lighting circuit unit is used. The high frequency noise generated by the above can be prevented from affecting the terminal section.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, power to the terminal unit is supplied from the control unit via the signal line, and the lighting unit includes means for separating the control signal from the power source. Therefore, there is no need to separately provide a power supply line for supplying power to the terminal unit, so that the workability is improved and the power required for the lighting unit can be saved. According to a seventh aspect of the present invention, in the fifth or sixth aspect of the present invention, the lighting section has a power supply monitoring means for monitoring the supply of power to the terminal section, and the abnormality guiding means includes a power supply monitoring means. When the voltage of the power supply supplied to the unit is detected to be lower than a certain value, the light source of the lighting unit is continuously turned on, so that, for example, an abnormality such as a disconnection of a signal line or a failure of the control unit to transmit power. Accordingly, when the supply of power to the terminal unit is interrupted, the light source of the lighting unit is continuously turned on, so that the safety of the driver of the vehicle on the road can be improved as compared with the related art.

The invention of claim 8 is the first to seventh aspects of the present invention.
In the invention, the control unit has a detection signal monitoring unit that monitors reception of the detection signal, and the abnormality guidance unit detects that the detection signal monitoring unit has not received the detection signal continuously for a predetermined time or more. Sometimes, a control signal is output to each lighting unit so that the light source is turned on in a predetermined lighting state. For example, the vehicle connecting the vehicle detection unit and the control unit can be disconnected or the vehicle can be detected due to abnormality of the vehicle detection unit. In the case where the detection signal does not exist or the detection signal cannot be transmitted, the light source of each lighting unit is turned on in a predetermined lighting state, so that the safety of the driver of the vehicle on the road can be improved as compared with the related art.

[0013] The ninth aspect of the present invention is the first to eighth aspects.
In the invention of (1), the lighting section is characterized in that it has a defect detecting means for detecting whether or not the light source of the lighting section has a point. According to a tenth aspect of the present invention, in the ninth aspect of the present invention, when the lighting unit detects a non-point of the light source by the non-point detecting means, the control unit determines the lighting unit having the light source that has become the point. Is transmitted to the control unit, so that the control unit can recognize the lighting unit having the light source that has become the point of failure.

According to an eleventh aspect of the present invention, in the ninth aspect of the present invention, the control unit transmits a request signal for requesting each lighting unit to return information on whether or not the light source is in a faulty state at regular intervals. Since the lighting unit has a means for receiving the request signal and a means for transmitting information as to whether or not the light source of the lighting unit is a point to the control unit, The control unit can check the presence or absence of the light source at regular intervals.

According to a twelfth aspect of the present invention, in the ninth to eleventh aspects of the present invention, the control unit has means for notifying the information to the outside, and when the control unit receives the information indicating that the light source is not a point, Since the information is reported to the outside, it can be recognized from the outside that the light source has failed, and it is possible to recognize the abnormality of the apparatus at an early stage. According to a thirteenth aspect of the present invention, in the ninth to twelfth aspects of the present invention, the abnormal state inducing means includes a lighting state of the plurality of light sources when the control unit receives point information indicating that the light source is not a point. Is generated and transmitted, so that, for example, the remaining light sources can be controlled as if there were no inconsistant light sources, and the safety of the driver of the vehicle on the road compared to the conventional one Can be enhanced.

According to a fourteenth aspect of the present invention, in the first to thirteenth aspects, the illuminance detecting means for detecting the surrounding illuminance is connected to the control unit, and the surrounding illuminance is high based on the output of the illuminance detecting means. As it has an inducing effect securing means for appropriately changing the control signal so that the brightness of the light source becomes higher, the light amount of the light source can be controlled in accordance with the surrounding illuminance. By increasing the light intensity of the light source, it is possible to avoid situations where the light from the light source is difficult to see, and at night or when it is raining and the surroundings are dark, the light intensity of the light source can be reduced so that the light from the light source is not dazzling to the driver. Thus, safer guidance can be performed.

According to a fifteenth aspect of the present invention, in the first to fourteenth aspects of the present invention, the vehicle detecting section is installed at two places on the entrance side and the exit side of the area where the plurality of lighting sections are arranged,
The control unit generates and transmits a control signal that changes the lighting state of the plurality of light sources according to the contents of the detection signals from both vehicle detectors, so that the control unit is compared with the case where only one vehicle detector is provided. It is possible to perform safer guidance.

In a sixteenth aspect based on the fifteenth aspect, the control unit is configured to control the speed of the vehicle obtained from the detection signal from the entrance-side vehicle detection unit and the detection signal from the entrance-side vehicle detection unit. A control unit configured to store a speed difference of the vehicle obtained from the detection signal from the vehicle detection unit on the exit side, and the control unit controls a speed of the vehicle obtained from the detection signal from the vehicle detection unit on the entrance side; Since the control is performed so as to change the switching speed of the light source that emits light at a predetermined light amount based on both the speed difference, it is possible to more appropriately switch the light source that emits light at a predetermined light amount. It is possible to prevent the flow of light from the light source from overtaking the vehicle, and it is possible to perform safer guidance.

According to a seventeenth aspect of the present invention, in the invention according to the fifteenth or sixteenth aspect, when the control unit determines that the speed of the traveling vehicle is equal to or lower than a certain speed based on the detection information from the vehicle detector on the exit side, Controls to change the lighting status of multiple light sources regardless of the content of the detection signal received from the vehicle detector on the entrance side, so vehicles stop in areas where multiple lighting sections are located due to traffic congestion or some other cause In such a case, it is possible to inform the driver of another vehicle that the vehicle is stopped in the above-mentioned area just before the entrance side, and to prevent a rear-end collision.

In the invention according to claim 18, a plurality of lighting units for setting a unique address and controlling the light source based on the control data are connected to a signal line by bus, and each lighting unit is arranged along a road, and An output unit that outputs a control signal including control data for controlling the light source of the lighting unit and address data of the other lighting unit and receives a control signal from an arbitrary lighting unit. For example, it is possible to prevent the flow of light from a light source that is lit at a predetermined light amount from overtaking the vehicle, and it is possible to perform safer guidance.

According to a nineteenth aspect of the present invention, in the eighteenth aspect, each lighting section sequentially outputs a control signal in the order of addresses and performs control between the lighting sections, so that a control section for controlling each lighting section is provided. Becomes unnecessary.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) FIG. 1 shows a schematic configuration diagram of a lighting device of the present embodiment. Lighting apparatus of the present embodiment, which forms the guide light system, a plurality of lighting sections into a single control unit 1 2 ₁ to 2 ₄ are bus-connected via a signal line Ls, each lighting each parts are ₂₁ to ₂₄ one light source 21
It is equipped with a ₁ to 21 _4. Further, each lighting unit 2 ₁ to 2 ₄ are connected commercial power source (AC100V) via a power line Le. In the present embodiment, the number of the lighting units is four, but the number of the lighting units is not limited to four and may be plural. For example, several tens of the lighting units are arranged at intervals of several meters. It may be arranged.

The control unit 1 is connected to a vehicle detector 3 for detecting the presence or absence of a vehicle and the speed of the vehicle. The control unit 1 controls a plurality of lighting units 2 based on the output of the vehicle detector 3. A control signal is created and sent to the signal line Ls. The vehicle detection unit 3 includes, for example, a vehicle detector that detects approach of a vehicle,
It is configured by a speed conversion control panel that receives a vehicle detection signal from a vehicle detector and calculates the speed of the vehicle.

[0024] Each lighting unit 2 ₁ to 2 ₄ are in within a predetermined area of the road along such a curve arranged at predetermined intervals. Each lighting unit 2 ₁ to 2 ₄ are each have a unique address, capture the control data associated with the matching address data to its own address from the received control signal, and processes the control data Each light source 2
Controlling the amount of 1 ₁ to 21 _4. The above-described control signal includes a plurality of (number of lighting units) address data and control data associated with each address data, and the control unit 1 transmits the plurality of light sources 21 ₁ at the timing of transmitting the control signal. thereby making it possible to control almost simultaneously and individually to 21 _4.

The vehicle detecting section 3 is provided with time measuring means such as a timer, for example, and transmits a detection signal to the control section at regular intervals irrespective of vehicle detection or non-detection. The detection signal includes information on the presence or absence of a vehicle approaching (entering) and information on the speed of the vehicle. The control unit 1 is configured by a microcomputer, for example, and transmits a control signal at regular intervals regardless of whether or not there is a change in the content of the control signal. It is set up much faster than.

The control unit 1 receives a detection signal indicating that the vehicle approaching the absence from the vehicle detection unit 3, a control corresponding to the address data corresponding to each lighting unit ₂₁ to ₂₄ each unique address Data is stored for each light source 2
A control signal is transmitted in such a manner that _{11 to} 21 ₄ are turned off. On the other hand, each lighting unit ₂₁ to ₂₄ is controlled so as to turn off the respective light sources 21 ₁ to 21 ₄ receives the control signal.

[0027] Here, the control signal because it is transmitted every predetermined cycle as described above, until it is necessary to change the light intensity of the light source 21 ₁ to 21 _4, i.e., the vehicle is detected by the vehicle detecting unit 3 Previously, the control signal is repeatedly transmitted, the light source 21 ₁ to 21 ₄ maintains the oFF state. On the other hand, after receiving the control signal and controlling the light source 21 based on the control signal, the lighting unit 2 keeps the state of the light source 21 until the next control signal is received. That is, the lighting unit 2
The light-off state is maintained until the vehicle is detected by the vehicle detection unit 3.

When the control unit 1 receives a detection signal from the vehicle detection unit 3 indicating that an incoming vehicle is present,
The lighting state of the plurality of light sources 21 is changed in a predetermined blinking pattern (hereinafter, referred to as an induction pattern). As the guidance pattern, for example, there is a pattern in which one light source that emits light with a high light amount among a plurality of light sources that emit light with a low light amount changes every moment according to the speed of the vehicle. In such a guidance pattern, light of a light source that is turned on with a high light amount appears to the driver to be traveling.

Here, the vehicle detector 3 is located on the entrance side of the curve.
Lighting part 2 installed in front₁~ 2_FourIs the entrance side of the curve
Lighting part 2 to exit side₁, Lighting part 2_Two, Lighting part 2_Three, Lights
Part 2 _FourWill be described. System
The control unit 1 receives the detection signal transmitted from the vehicle detection unit 3
And the detection signal includes information indicating the presence of the vehicle.
In the case, one light source 21₁Only lit with high light
Other light source 21_Two, 21 _Three, 21_FourLights up in low light
Control data including such control data.
(Hereinafter, referred to as a first control signal) for each lighting unit 2.
Send. Next, the controller 1 controls the light source 21_TwoOnly high light
Lights up with other light sources 21₁, 21_Three, 21_FourIs low light
Create new control data that lights up with
Control signal containing data (hereinafter, referred to as a second control signal)
The first predetermined time has passed since the detection signal was received.
Sent when done. Here, the first predetermined time is the light source 2
1₁Lighting section 2 having₁And light source 21_TwoLighting section 2 having
_TwoAnd the speed of the vehicle obtained from the detection signal.
Then, the calculation is performed by the control unit 1. Next, the control unit 1
Source 21_ThreeOnly the other light sources 21₁, 2
1_Two, 21_FourControl data to light up
A control signal (hereinafter referred to as a third signal) including the control data
Control signal) from the time when the detection signal is received.
2 when the predetermined time has elapsed. Here, the second
For a predetermined time, the light source 21₁Lighting section 2 having₁And light source 21
_ThreeLighting section 2 having_ThreeFrom the installation interval and the detection signal.
The calculation is performed by the control unit 1 based on the speed of the vehicle. Next
In addition, the control unit 1_FourOnly lit with high light
Other light source 21₁, 21_Two, 21_ThreeLights up in low light
Create new control data such as
Control signal (hereinafter, referred to as a fourth control signal)
Sent when the third predetermined time has elapsed from the time of reception
You. Here, the third predetermined time is the light source 21₁A point with
Light part 2₁And light source 21 _FourLighting section 2 having_ThreeInstallation interval with
And the control unit 1 based on the speed of the vehicle obtained from the detection signal.
Is calculated by

That is, the control unit 1 sequentially transmits the first control signal, the second control signal, the third control signal, and the fourth control signal, and repeats each control signal at regular intervals. Send. Therefore, the light sources 21 ₁ , 21 ₂ , 2
1 _3, 21 ₄ light sources 21 ₁ → the light source 21 ₂ → the light source 21 ₃ →
.. Are illuminated with a high light quantity in the order of the light sources 21 ₄ → 21 ₁ → 21 ₂ ... That is, in the present embodiment, the light source that is turned on with a high amount of light appears to be running from the driver, and the plurality of light sources 21 ₁ , 21 ₂ , 21 ₃ , and 21 ₄ constitute the guiding means.

Next, the lighting device of the present embodiment has some
A case where a rubble has occurred will be described. For example, control
Part 1 and lighting part 2₁When the signal line Ls is disconnected between
Each lighting part 2₁, 2_Two, 2_Three, 2_FourIs the control from the control unit 1.
Control signal cannot be received and immediately before the signal line Ls is disconnected.
Each light source 21 based on the control data of the control signal received
₁, 21_Two, 21_Three, 21_FourHolds each lighting state
I do. However, in this embodiment, each lighting unit 2₁, 2_Two,
2_Three, 2_FourMonitors the reception of control signals at regular intervals.
Control signal monitoring means.
Therefore, control signals received at regular intervals are monitored and
If there is no control signal input after the elapse of time,
Each light source 21₁, 21_Two, 21_Three, 21_FourChange the state of
It is made to be. In other words, each lighting unit 2
₁, 2_Two, 2_Three, 2_FourIs the control data
Data (control information), and change each light source 21₁, 2
1 _Two, 21_Three, 21_FourThe special lighting condition (for example, all
Light source 21₁, 21_Two, 21_Three, 21_FourIs a point at a given cycle
Lighting state).
ing. That is, each lighting unit 2₁, 2_Two, 2_Three, 2_Four
Are different in the guide light system (that is, the lighting device).
If you maintain the function of detecting the
In both cases, externally report that the guide light system is abnormal.
Each of the light sources 21 to be notified₁, 21_Two, 21_Three, 2
1_FourThere is an abnormality guidance means to change the lighting state of
Because Here, the abnormality guidance means is provided for monitoring the control signal.
Check for abnormalities in the guide light system based on the output of the means.
Detected. In addition, the guidance hand at the time of abnormality in this embodiment
The steps are realized by a microcomputer, for example.
You.

By the way, the conventional guide light system is not provided with such an abnormal time guidance means, so that, for example, when a similar disconnection occurs in a state where the vehicle is not detected, the existence and shape of the curve are operated. There is a possibility that the information may not be notified to the user and that the guide light system may not be noticed abnormally. On the other hand, in the guide light system configured by the lighting device of the present embodiment, even when the above-described trouble occurs,
Since the above-mentioned abnormal time guidance means is provided, it is possible to inform the driver of at least the existence and shape of the curve. In addition, by setting the light sources 21 ₁ , 21 ₂ , 21 ₃ , and 21 ₄ to a special lighting state, it is possible to recognize the abnormality of the guide light system from the outside at an early stage, and to promptly inform the manager of the guide light system. Since the improvement can be promoted, the loss of the guidance effect by the guidance means can be visually and temporally suppressed.

In this embodiment, each of the lighting sections 2 ₁ , 2
₂ , 2 ₃ , 2 ₄ are each one light source 21 ₁ , 21 ₂ ,
21 ₃ , 21 ₄ , each lighting section 2 ₁ , 2 ₂ ,
2 _3, the number of 2 ₄ comprises a light source not limited to one, may be plural, and the type of the light source is also not limited in particular (as the light source, for example, be an LED Or a so-called electrodeless discharge lamp may be used).

The guidance pattern is the same as the above-mentioned guidance pattern.
Without limitation, at least the driver must
Any guidance pattern can be used as long as the guidance pattern allows the user to visually recognize the location and shape. Book
In the guidance pattern of the embodiment, the plurality of light sources 21₁, 21
_Two, 21_Three, 21_FourLight source that emits low light at
By sequentially changing the light source that is lit with high light intensity,
The difference in light amount is used.
Number of light sources for each lighting section 2 ₁, 2_Two, 2_Three, 2_FourIn the light
A guidance pattern using a difference in color may be used. this
In this case, the information included in the control signal may be appropriately changed.

In this embodiment, the signal line Ls is disconnected.
Has been described, for example, if the control unit 1
If the control signal cannot be transmitted due to
2₁, 2_Two, 2_Three, 2_FourControl signal is received
Even if it does not work, each lighting part 2 ₁, 2_Two, 2_Three, 2_FourThen
An operation similar to the above operation is performed. (Embodiment 2) FIG. 2 shows a schematic configuration of a lighting device of this embodiment.
The figure is shown. The basic configuration of the lighting device of the present embodiment is the same as the embodiment.
1, and in the present embodiment, each lighting unit 2₁,
2_Two, 2_Three, 2_FourEach is a light source 21₁, 21_Two, 2
1_Three, 21_FourAnd the light source 21₁,
21_Two, 21_Three, 21_FourSignal to control the amount of light
Terminal unit 22 to be created₁, 22_Two, 22_Three, 22_FourAnd the light
Source 21₁, 21_Two, 21 _Three, 21_FourLighting times to light
Road 23₁, 23_Two, 23_Three, 23_FourAnd
That is, in the present embodiment, each terminal unit 22₁, 22_Two,
22_Three, 22_FourReceives the control signal and addresses the control signal.
Control data based on the
And each light source 2 based on the control data.
1₁, 21 _Two, 21_Three, 21_FourTo control the amount of light
Create a signal (dimming signal) and apply the signal to each lighting
Road 23₁, 23_Two, 23_Three, 23_FourTo send to
Has become.

Each terminal unit 22₁, 22_Two, 22_Three, 22_Four
Is constituted by a microcomputer, for example,
Each terminal unit 22₁, 22_Two, 22_Three, 22_FourPower supply (control
Control power) is supplied from the control unit 1 through the signal line Ls.
You. In addition, each lighting circuit unit 23 ₁, 23_Two, 23_Three, 23
_FourHas a commercial power supply (AC100V) via the power line Le
Supplied. Here, each lighting unit 2₁, 2_Two, 2_Three, 2_Four
Has means for separating the control signal and the control power supply.
You. In addition, each terminal unit 22₁, 22_Two, 22_Three, 22_FourIs
For example, full-wave rectification of a control signal transmitted through the signal line Ls
Power supply for internal circuit operation
Can be

[0037] Thus, in the present embodiment, the lighting unit 2 _{1, 2} 2, 2 _3, 2 without increasing the transmission line to _4,
Further, it is possible to save power required for lighting unit 2 _{1, 2} 2, 2 _3, 2 _4. In the present embodiment, the power of each of the terminal units 22 ₁ , 22 ₂ , 22 ₃ , and 22 _{4 and} the power of each of the lighting circuit units 23 ₁ , 23 ₂ , 23 ₃ , and 23 ₄ are supplied through different paths. Therefore, the light sources 21 ₁ , 21 ₂ , 2
1 _3, 21 even in the case of using those high-frequency lighting (e.g. electrodeless discharge lamp) as _4, high-frequency noise terminal unit 22 ₁ that occur due to high-frequency lighting, 22 _2, 22
_3, 22 effect can the reduced give to _4, because the occurrence of defects such as that the terminal unit 22 _1, 22 _2, 22 _3, can not correctly receive 22 ₄ malfunction or control signals can be prevented, the user Can achieve the control desired by the user.

In this embodiment, for example, the control unit 1 and the lighting
Part 2₁When the signal line Ls is disconnected between the
₁, 2_Two, 2_Three, 2_FourReceives the control signal from the control unit 1.
Not only cannot be communicated, but also
You. Therefore, in the present embodiment, each terminal unit 22₁, 2
2_Two, 22_Three, 22_FourEach monitor the power supply
Power supply monitoring means;₁, 2_Two, 2_Three, 2
_FourMeans that the voltage of the power supply is
When the light source 21 detects that the ₁,
21_Two, 21_Three, 21_FourLit continuously (all lit)
There is always guidance means. Note that, in the present embodiment as well,
The constant guidance means is, for example, a microcomputer
Is achieved.

In this embodiment, however, even when the above-described trouble occurs, each of the light sources 21 ₁ , 2 ₁
Because 1 _2, 21 _3, 21 ₄ is continuously turned, can inform at least curves existence and shape to the driver,
The loss of the induction effect can be visually suppressed, and the loss of safety can be prevented. In this embodiment, the case where the signal line Ls is disconnected has been described.
For example, the control unit 1 in each case can not supply the control power for some reason, the lighting unit 2 _1, 2 _2, 2 _3, 2, ₄ above operation and the same operation is performed.

(Embodiment 3) Embodiments 1 and 2
In the second embodiment, the control unit 1 and each lighting unit 2₁, 2_Two,
2_Three, 2_FourWhen the signal line Ls connecting the
However, instead of the signal line Ls, the vehicle detection unit 3
Signal line L connecting control unit 1₀If the line breaks, the vehicle
The detection unit 3 detects the presence of the vehicle, and a detection signal including the information.
Control unit 1 receives this detection signal even if
Control signal based on this detection signal.
Can not be created. Therefore, the control unit 1
Each light source 21 ₁, 21_Two, 21_Three, 21_FourTurn off the light
Transmission of control signals containing such control data
To inform the driver of the existence and shape of the curve
And the guide light system (ie the lighting
The abnormality of the device cannot be notified to the outside.

In order to avoid this kind of problem beforehand,
In the configuration shown in FIG. 1 or FIG. 2, the control unit 1 in the lighting device of the present embodiment has a detection signal monitoring unit that monitors the presence or absence of a detection signal at regular intervals, and the detection signal monitoring unit sets a predetermined time. When it is detected that there is no input of the detection signal even after the elapse, each of the lighting units 2 ₁ , 2 ₂ , 2 ₃ ,
Each of the light sources 21 ₁ 2 ₄ 21 _2, 21 _3, 21 ₄
To a special lighting condition (all light sources 2
1 _1, 21 _2, 21 _3, or 21 ₄ flashes at a fixed period, or the control data such that the induction pattern) so as to run through the high intensity of the light source is a low intensity of the light source at a constant speed An abnormal time guidance means for generating a control signal including the control signal and transmitting the control signal to the signal line Ls is provided. That is, in the present embodiment, the control unit 1 and each of the lighting units 2 ₁ , 2 ₂ , 2 ₃ , and 2 ₄ have abnormality guidance means. Also in the present embodiment, the abnormality guidance means is realized by, for example, a microcomputer.

Therefore, in this embodiment, even when the above-described trouble occurs, each light source 21 ₁ ,
Since the lights 21 ₂ , 21 ₃ , and 21 ₄ are turned on in a special lighting state, the driver can be informed at least of the existence and shape of the curve. Moreover, the light sources 21 ₁ , 21 ₂ , 2
By the 1 _3, 21 ₄ special lighting conditions, be able to recognize at an early stage abnormalities guide light system from the outside, because it is possible to encourage improvements early a manager of the guide light system, a plurality Light sources 21 ₁ , 2
It is possible to shorten the period during which the guidance effect constituted by the guidance means constituted by ₁₂ , 21 ₃ , and 21 ₄ does not produce any effect.

[0043] Further, in the present embodiment has described the case where the signal line L ₀ is broken, for example, when it is not possible to detect the vehicle by the abnormality of the vehicle detection section 3, Ya when the vehicle detecting unit 3 can not send a detection signal Also, when the detection signal cannot be processed due to the abnormality of the control unit 1, the control unit 1 performs the same operation as the above operation. (Embodiment 4) The basic configuration and basic operation of the lighting device of this embodiment are substantially the same as those of Embodiments 1 to ₃ , and the case where the light sources 21 ₁ , 21 ₂ , 21 ₃ , and 21 ₄ have no points is used. There is a characteristic in operation. For example, the first embodiment the light source 21 with induced pattern described in _1, 21 _2, 21 _3, when 21 ₄ conditions such as changes, the light source 21 included in the lighting unit 2 ₃
When ₃ is to be the non-point, since only where a is the time of the light source 21 ₃ its direction pattern is interrupted, inducing effect there is a fear that reduction.

On the other hand, each lighting section in the present embodiment
2₁, 2_Two, 2_Three, 2_FourIs the light source 21 inside₁,
21_Two, 21_Three, 21_FourDetect if is a point
For this purpose, a point detection means such as an optical sensor is provided.
And light source 21₁, 21_Two, 21 _Three, 21_FourIs dissatisfied
When it is detected that this is the case, the fault information is sent to the control unit 1.
I believe in it. On the other hand, the control unit 1
Means, such as display means, ringing hands
It has a stage, a transfer means, etc., and receives point information.
And at least one of display means, sounding means, and transfer means
Means to indicate which of the light sources of the lighting section are not in the spot.
Information is reported to the outside. Where the misfortune
Signal line for transmitting information, for transmitting control signals
In this embodiment, the signal line Ls shown in FIG.
Thus, another signal line A is provided.

That is, the lighting device of the present embodiment is provided with a dedicated signal line A for transmitting the fault information to the control unit 1, and each lighting unit 2 ₁ , 2 ₂ , 2 ₃ , 2 ₄ Immediately after detecting a defect, defect information including its own unique address is transmitted to the control unit 1 via the signal line A.
When it is not a dedicated signal line A is lighting section 2 _1, 2 _2, 2 _3, 2 ₄ of its own at the time when the control signal goes off timing transmitted in immediately after detecting non-point What is necessary is just to transmit the faulty information including the address to the control unit 1 via the signal line Ls.

According to the present embodiment, when the light source becomes insufficiency, it is notified to the outside that there is a light source which has become insufficiency by display, sounding, and transfer from the control unit 1. Early improvement of the device can be promoted, and the period during which the guidance means cannot provide the guidance effect can be shortened, and safety can be improved. Note that, in the present embodiment, the optical sensor is used to detect a defect in the light source, but the defect detection means is not limited to the optical sensor.

(Embodiment 5) The basic configuration and the basic operation of the illuminating device of this embodiment are substantially the same as those of Embodiments 1 to ₃ , except that the light sources 21 ₁ , 21 ₂ , 21 ₃ , and 21 ₄ are not used. There is a characteristic in the operation in a certain case. For example, each of the light sources 21 ₁ , 21 ₂ , 2 in the guidance pattern described in the first embodiment.
1 _3, 21 cases ₄ states that varies, the lighting unit 2 ₃
Assuming that the light source 21 ₃ has no point, the light source 21 ₃
However, since the guidance pattern is interrupted for a certain time, the guidance effect may be reduced.

On the other hand, in this embodiment, each lighting section 2
₁, 2_Two, 2_Three, 2_FourIs the light source 21 inside₁, 2
1_Two, 21_Three, 21_FourTo detect whether or not
For example, it has a fault detection means such as an optical sensor,
The control unit 1 controls each lighting unit 2₁, 2_Two, 2_Three, 2_FourAgainst
And each lighting part 2₁, 2_Two, 2_Three, 2_FourEach has
Light source 21₁, 21_Two, 21_Three, 21_FourIs not a point
A signal requesting that information be returned (hereinafter, request
(Referred to as a signal). Here
As the request signal, each lighting unit 2₁, 2_Two, 2_Three, 2_FourSolid
It may be something like specifying an existing address, in this case,
Every time, all lighting parts 2₁, 2_Two, 2_Three, 2 _FourSpecific ad
Request signal whose address has been changed to cover all addresses
If the transmission is performed every time, the control unit 1
Lighting part 2₁, 2_Two, 2_Three, 2_FourEach light source 2
1₁, 21_Two, 21_Three, 21_FourMonitor whether or not
Can be seen.

On the other hand, each lighting section 2 ₁ , 2 ₂ , 2 ₃ , 2
_4. Each time a request signal is received, the internal light sources 21 ₁ , 2
It detects whether or not ₁₂ , 21 ₃ , and 21 ₄ are faulty, and transmits fault information based on the detection result regardless of whether they are faults. Further, the control unit 1 has, for example, a display unit, a sounding unit, a transfer unit, and the like as a unit for notifying the point information to the outside. By at least one of the means, information indicating which light source of the lighting section is the point is notified to the outside.

It is to be noted that the lighting sections 2 ₁ , 2 ₂ ,
The signal line for transmitting the request signal to each of 2 ₃ and 2 ₄ may be the signal line Ls for transmitting the control signal, or the request signal may be transmitted to each of the lighting sections 2 ₁ , 2 ₂ , 2 ₃ , 2 A signal line for transmitting to ₄ may be separately provided. If a dedicated signal line is not provided, a request signal may be transmitted via the signal line Ls at a time when the timing for transmitting the control signal is removed. A signal line for transmitting the fault information to the control unit 1 may be, for example, as in the fourth embodiment.

In this embodiment, however, when the light source becomes insufficiency, it is notified to the outside that there is a light source which has become insufficiency by displaying, sounding, transferring, etc. from the control unit 1. Early improvement of the device can be promoted, and the period during which the guidance means cannot provide the guidance effect can be shortened, and safety can be improved. Note that, in the present embodiment, the optical sensor is used to detect a defect in the light source, but the defect detection means is not limited to the optical sensor.

(Embodiment 6) By the way, in Embodiments 4 and 5, when the control unit 1 recognizes that the light source is not a point, the control unit 1 notifies (notifies) the information. Can be turned on, but the lighting parts 2 ₁ , 2 ₂ , 2 ₃ , 2
_Since the control signal transmitted to ₄ does not change before and after detecting the defect, there is a possibility that the guiding effect by the guiding means may be reduced due to the light source having the defect.

In order to avoid this kind of problem beforehand,
In the present embodiment, for example, the guidance pattern described in the first embodiment is used.
Light sources 21 constituting the guiding means by the₁, 21_Two,
21 _Three, 21_FourWhen the lighting state of is controlled, the light source 2
1_ThreeIf there is no point, the control unit 1 turns on the lighting unit 2_ThreeMisunderstanding from
Receive information. The control unit 1 includes a lighting unit 2_ThreeInformation from
When receiving, the control signal is not sent and the new invitation is sent.
Light source 21 by conducting pattern₁~ 21_FourLike to control
Create new control data and turn on the control signal containing it
Part 2₁~ 2_FourWith an emergency guidance means to send to
I have. In this case, for example, a light source that is
Light source 21₁→ Light source 21_Two→ Light source 21_Four→ Light source 21₁・ ・
Light source 21 which is changed in the order of_ThreeSkip and run
May be changed to a guiding pattern
For example, a light source that is turned on with a high₁→ Light source 21_Two,
Light source 21_Four→ Light source 21₁→ Light source 21_Two, Light source 21_Four→ ・
.. Light source 21 which is changed in the order of_ThreeSandwich
Light source 21 on both sides_Two, Light source 21 _FourLights at the same time
It may be changed to a suitable guidance pattern. The guidance pattern
Is not limited to these guidance patterns.

According to the present embodiment, even when there is a light source that has become an inconsistency, for example, the blinking of the remaining light sources is controlled by assuming that there is no inconsistant light source. The loss of the effect can be suppressed, and the safety of the driver can be improved. (Embodiment 7) In the lighting device of the present embodiment, in the configuration of Embodiment 1 or Embodiment 2, illuminance detection means such as an illuminance sensor for detecting ambient illuminance is connected to the control unit 1, and the control unit 1 It is characterized in that it has an inducing effect securing means for appropriately changing a control signal so that the luminance of the light source increases as the surrounding illuminance increases based on the output of the illuminance detecting means.

The control unit 1 in the present embodiment detects illuminance.
Based on the output of the means, the guidance means will be
Constituent light source 21₁, 21_Two, 21_Three, 21_FourThe brightness of
Create control data to increase the
The control signal is transmitted to the signal line Ls. Therefore, during the day
The light source 21 depends on the surrounding brightness.₁, 21_Two, 21
_Three, 21_FourTo avoid difficulties for the driver to see
Can be. When the surrounding illuminance is low, the control unit
1 is a light source 21₁, 21_Two, 21_Three, 21_FourLower brightness
Create control data that contains the control data
The control signal is transmitted to the signal line Ls. Therefore, at night
To light source 21₁, 21_Two, 21_Three, 21 _FourTo the driver
You can avoid feeling dazzling.

The surrounding illuminance is large depending on the weather.
If it is sunny in the daytime,
Since the illuminance detected by the step is high, the control unit 1
21 ₁, 21_Two, 21_Three, 21_FourI'm going to increase the brightness of
Sends out control signals and illuminates even in the daytime on cloudy or rainy days.
There is a possibility that the illuminance detected by the degree detection means is low,
When the illuminance is low, the light source 21₁, 21_Two, 21_Three, 2
1_FourA control signal for lowering the luminance of is transmitted.

Thus, in the present embodiment, by appropriately maintaining the contrast between the surrounding brightness and the brightness of the light sources 21 ₁ , 21 ₂ , 21 ₃ , 21 ₄ , it is possible to perform accurate guidance to the driver. It becomes possible. (Embodiment 8) By the way, in the curve of the road, how to slow down the speed at the entrance and the exit of the curve tends to be constant depending on the condition of the vehicle, the time zone such as morning, day and night, and the weather. .

The lighting device of this embodiment focuses on this point. In the first or second embodiment, the vehicle detection units 3 are installed on the entrance side and the exit side of the curve, and each vehicle detection unit 3 The control unit receives the detection signal from the controller. On the other hand, the control unit 1 obtains the speed difference between the vehicle at the entrance and the exit of the curve based on the output of each vehicle detection unit 3 and stores the speed difference.

The control unit 1 has a means for comparing the speed obtained from the detection signal of the vehicle detection unit 3 on the entrance side with the means for storing the speed difference, and compares the speed difference with the means for storing the speed difference.
The speed at which the light source that emits light at a predetermined amount of light is switched based on both the speed of the vehicle obtained from the detection signal from the vehicle and the above speed difference is changed. Is controlled so that the difference in the traveling speed of the light from the light source from the entrance to the exit of the light source (for example, the speed of the flow of the light source turned on at a high light intensity) is large, and when the speed difference is small, the light is emitted at a substantially constant speed. It is designed to run.

However, in the present embodiment, by controlling the traveling speed of the light of the guiding means, the light is less likely to precede the vehicle than the vehicle, and the vehicle is less likely to overtake the light. Can be performed. (Embodiment 9) The basic configuration of a lighting device of this embodiment is substantially the same as that of Embodiment 1 or Embodiment 2.
Means for comparing the speed of the vehicle obtained from the detection signal from the vehicle detection unit 3 with a predetermined value; when the speed of the vehicle is lower than a predetermined value (constant speed), it is determined that the vehicle is congested; lighting unit 2 _{1, 2} 2, 2 _3, 2 _4, respectively of the light sources 21 ₁ to,
A control signal for blinking or turning on all the lights 21 ₂ , 21 ₃ , and 21 ₄ is transmitted. Therefore, when the vehicle is congested near the curve, the light sources 21 ₁ , 21 ₂ , 21 ₃ , and 21 ₄ are in a special lighting state different from the normal guidance pattern, and the curve is congested. The driver can visually recognize that the vehicle is in front of the curve, and the occurrence of an accident such as a rear-end collision can be suppressed.

(Embodiment 10) FIG. 4 shows a schematic configuration diagram of a lighting device of the present embodiment. In this embodiment, each lighting unit 2
₁ , 2 ₂ , 2 ₃ , 2 ₄ , 2 _5.
1 , 21 ₂ , 21 ₃ , 21 ₄ ... And the distance measuring sensor 24
_1, 24 _2, 24 _3, 24 _4, 24 ₅ and a., The lighting unit 2 ₁ by signal line Ls of the two-wire, ₂ 2, 2 _3,
2 ₄ , 2 ₅ ... are connected to each other. In this embodiment, not provided with a control unit 1, as described in the above embodiments, each lighting unit 2 _1, 2 _2, 2 _3, 2 _4, 2 ₅ ...
- it is has input and output unit for exchanging signals (not shown), the lighting unit 2 _{1, 2} 2, 2 _3, 2 ₄ optional lighting unit 2 ₁ between each other, ₂ 2, 2 _{3, 24} is controlled. Note that, also in this embodiment, the plurality of light sources 21 ₁ , 2
Constitute a guiding means by 1 _2, 21 _3, 21 ₄ ....

Each lighting section 2₁, 2_Two, 2_Three, 2_FourUnique to
The address is set and each lighting section 2₁, 2_Two, 2_Three,
2_Four, 2_Five.. Correspond to a curve R as shown in FIG.
From the entrance side of one lane to the youngest address along the road
Are located in Note that CL in FIG.
It is. Each lighting unit 2 in the present embodiment₁, 2_Two, 2
_Three, 2_Four, 2_Five... is basically in the order of youngest address
Enter your own unique address and the address of the lighting part you want to control.
And control status (flashing, dimming) data (control data)
And a transmission signal in the format consisting of the end signal
I do. The lit part of the next address is displayed after the end signal is sent.
To start transmitting a signal of a similar format. This one
Repeat the sequence of operations up to the last lighting section, and once the circuit goes round,
It repeats in order from the lighting part of the young address
You. In the present embodiment, by performing such control,
Each lighting part 2 ₁, 2_Two, 2_Three, 2_Four, 2_FiveFrom ...
Signal does not collide on the signal line Ls, and
Light part 2₁, 2_Two, 2_Three, 2_Four, 2_FiveControlling ...
be able to.

Each lighting section 2₁, 2_Two, 2_Three, 2_Four,
2_Five... are the respective distance measuring sensors 24₁, 24_Two,
24_Three, 24_Four, 24_FiveThe detection beam B of...
When 0 crosses, for example, the lighting section located four places ahead
May be controlled so that the light source is turned on. You
That is, lighting part 2₁Distance measuring sensor 24₁Detection beam B
When the vehicle 50 crosses the₁Is the lighting part 2_FiveLight source
21_FiveAddress data and control data that lights up
Is transmitted to the signal line Ls.
Put out. Therefore, in the present embodiment, the lighting unit 2₁Measurement
Distance sensor 24₁When the vehicle 50 crosses the detection beam B of
Lighting unit 2_FiveLight source 21_FiveOnly the other lights will light up
2₁, 2_Two, 2_Three, 2_Four, 2₆, 2₇, 2₈, 2₉, 2
_TenLight source 21 ₁, 21_Two, 21_Three, 21_Four, 21₆, 2
1₇, 21₈, 21₉, 21_TenRemains off.
Similarly, lighting section 2_TwoDistance measuring sensor 24_TwoDetection bee
When the vehicle 50 crosses the vehicle B, the lighting unit 2_TwoIs the lighting part 2₆of
Light source 21₆Is sent to the signal line Ls.
I believe.

By turning the control signal at a speed sufficiently higher than the speed of the vehicle 50, the driver of the vehicle 50 can be guided accurately. Further, by determining whether the control signal is transmitted by detecting whether or not the vehicle 50 has crossed the detection beam B of the distance measurement sensor, even when the speed of the vehicle 50 changes in the middle of the curve R, Since the lighting timing of each light source is determined according to the speed of the vehicle 50, it is possible to guide the driver according to the speed of the vehicle 50.

[0065]

According to the first aspect of the present invention, there is provided a vehicle detection unit for detecting the presence or absence of a vehicle and the speed of the vehicle, guidance means including a plurality of light sources arranged along a road, address data from a control unit, A bus is connected to a signal line through which a control signal including control data is transmitted, and a unique address is set. When the address data of the control signal matches the unique address, the light amount of each light source is controlled based on the control data of the control signal. Each of the plurality of lighting units to be controlled, and via each of the lighting units so as to guide the vehicle when the vehicle is detected by the vehicle detection unit by transmitting the control signal based on the output of the vehicle detection unit. The control unit for sequentially changing the light amount of each light source, and maintaining the function of detecting an abnormality in the device and guiding the vehicle even in the event of an abnormality, and externally detecting that the device is abnormal. It is provided with an abnormal-time guiding means for changing the lighting state of each light source so as to notify the driver. Therefore, even if an abnormality occurs in the apparatus, the driver turns on the light source constituting the guiding means to notify the driver of the road. The shape of the vehicle can be informed and guided, and the occurrence of an abnormality in the device can be notified to the outside, and there is an effect that the safety of the driver of the vehicle on the road can be improved as compared with the related art. .

According to a second aspect of the present invention, in the first aspect of the present invention, the control section has means for transmitting a control signal at regular intervals, so that the light amount of the light source can be changed at regular intervals. There is. According to a third aspect of the present invention, in the first or second aspect of the present invention, since the vehicle detecting section has a means for transmitting a detection signal indicating a detection result at a constant cycle, the control section detects the detection signal at a constant cycle. There is an effect that a signal can be received.

The invention of claim 4 is the invention of claims 1 to 3
In the invention, the lighting section has control signal monitoring means for monitoring the reception of the control signal, and the abnormal time inducing means has detected that the control signal monitoring means has not received the control signal continuously for a predetermined time or more. Sometimes, the light source of the lighting unit is turned on in a special lighting state, so that the lighting unit has a special lighting state even when an abnormality of the device such as disconnection of the signal line or inability of the control unit to transmit a control signal occurs. Therefore, there is an effect that the safety of the driver of the vehicle on the road can be enhanced as compared with the related art.

The invention of claim 5 is the invention of claims 1 to 4
In the invention, the lighting unit, the light source, a terminal unit that creates a signal that controls the light amount of the light source is set the unique address, a lighting circuit unit that lights the light source based on a signal from the terminal unit The power supply for supplying power to the terminal unit and the power supply for supplying power to the lighting circuit unit are supplied through different paths. Therefore, when a light source that requires high-frequency lighting is used, the lighting circuit unit is used. Therefore, there is an effect that high frequency noise generated by the above can be prevented from affecting the terminal unit.

According to a sixth aspect of the present invention, in the fifth aspect of the invention, power to the terminal unit is supplied from the control unit via the signal line, and the lighting unit includes means for separating the control signal from the power source. Therefore, there is no need to separately provide a power supply line for supplying power to the terminal unit, and there is an effect that workability is improved and power required for the lighting unit can be saved.

The invention of claim 7 is the invention of claim 5 or claim 6.
In the invention of the above, the lighting section has a power supply monitoring means for monitoring the supply of power to the terminal section, and the abnormal state inducing means reduces the voltage of the power supplied to the terminal section by the power supply monitoring means to a value lower than a certain value. Since the light source of the lighting unit is continuously turned on when it is detected that the power supply to the terminal unit has been cut off due to an abnormality such as disconnection of a signal line or inability of the control unit to transmit power. In this case, since the light source of the lighting section is continuously lit, there is an effect that the safety of the driver of the vehicle on the road can be improved as compared with the related art.

The invention of claim 8 is the first to seventh aspects of the present invention.
In the invention, the control unit has a detection signal monitoring unit that monitors reception of the detection signal, and the abnormality guidance unit detects that the detection signal monitoring unit has not received the detection signal continuously for a predetermined time or more. Sometimes, a control signal is output to each lighting unit so that the light source is turned on in a predetermined lighting state. For example, the vehicle connecting the vehicle detection unit and the control unit can be disconnected or the vehicle can be detected due to abnormality of the vehicle detection unit. In the case where there is no detection signal or the detection signal cannot be transmitted, the light source of each lighting unit is turned on in a predetermined lighting state, so that the safety of the driver of the vehicle on the road can be improved as compared with the conventional case. is there.

The ninth aspect of the present invention relates to the first to eighth aspects.
In the invention of the present invention, since the lighting section has a defect detection means for detecting whether or not the light source of the lighting section has a point,
The lighting section can detect a point of the light source. Claim 1
In a preferred embodiment of the present invention, in the ninth aspect of the present invention, when the lighting section detects a non-point of the light source by the non-point detecting means, the control section can determine the lighting section having the light source that has become the point. Since such insufficiency information is transmitted to the control unit, there is an effect that the control unit can recognize a lighting unit having a light source that has become an insufficiency.

According to an eleventh aspect of the present invention, in the ninth aspect of the present invention, the control unit sends a request signal for requesting each lighting unit to return information on whether or not the light source is in a faulty state at regular intervals. Since the lighting unit has a means for receiving the request signal and a means for transmitting information as to whether or not the light source of the lighting unit is a point to the control unit, There is an effect that the control unit can check the presence or absence of the light source at regular intervals.

According to a twelfth aspect of the present invention, in the ninth to eleventh aspects of the present invention, the control unit has means for notifying the information to the outside, and upon receiving the information indicating that the light source is not at a point, Since the information is notified to the outside, it is possible to recognize from the outside that the light source has failed, and it is possible to recognize the abnormality of the apparatus at an early stage. According to a thirteenth aspect of the present invention, in the ninth to twelfth aspects of the present invention, the abnormal state inducing means includes a lighting state of the plurality of light sources when the control unit receives point information indicating that the light source is not a point. Is generated and transmitted, so that, for example, the remaining light sources can be controlled as if there were no inconsistant light sources, and the safety of the driver of the vehicle on the road compared to the conventional one There is an effect that it can be increased.

According to a fourteenth aspect of the present invention, in the first to thirteenth aspects, the illuminance detecting means for detecting the surrounding illuminance is connected to the control unit, and the surrounding illuminance is high based on the output of the illuminance detecting means. As it has an inducing effect securing means for appropriately changing the control signal so that the brightness of the light source becomes higher, the light amount of the light source can be controlled in accordance with the surrounding illuminance. By increasing the light intensity of the light source, it is possible to avoid situations where the light from the light source is difficult to see, and at night or when it is raining and the surroundings are dark, the light intensity of the light source can be reduced so that the light from the light source is not dazzling to the driver. Thus, there is an effect that safer guidance can be performed.

According to a fifteenth aspect of the present invention, in the first to fourteenth aspects of the present invention, the vehicle detecting section is installed at two places on the entrance side and the exit side of the area where the plurality of lighting sections are arranged,
The control unit generates and transmits a control signal that changes the lighting state of the plurality of light sources according to the contents of the detection signals from both vehicle detectors, so that the control unit is compared with the case where only one vehicle detector is provided. There is an effect that it is possible to perform safer guidance.

According to a sixteenth aspect of the present invention, in the fifteenth aspect, the control unit is configured to control a speed of the vehicle obtained by a detection signal from the entrance-side vehicle detection unit and a detection signal from the entrance-side vehicle detection unit. A control unit configured to store a speed difference of the vehicle obtained from the detection signal from the vehicle detection unit on the exit side, and the control unit controls a speed of the vehicle obtained from the detection signal from the vehicle detection unit on the entrance side; Since the control is performed so as to change the switching speed of the light source that emits light at a predetermined light amount based on both the speed difference, it is possible to more appropriately switch the light source that emits light at a predetermined light amount. It is possible to prevent the flow of light from the light source from overtaking the vehicle, and it is possible to perform safer guidance.

According to a seventeenth aspect of the present invention, in accordance with the fifteenth or sixteenth aspect, when the control unit determines that the speed of the traveling vehicle is equal to or less than a certain speed based on the detection information from the exit-side vehicle detector, Controls to change the lighting status of multiple light sources regardless of the content of the detection signal received from the vehicle detector on the entrance side, so vehicles stop in areas where multiple lighting sections are located due to traffic congestion or some other cause In such a case, it is possible to notify the driver of another vehicle that the vehicle is stopped in the above-mentioned area in front of the entrance side, and it is possible to prevent a rear-end collision. .

According to the eighteenth aspect of the present invention, a plurality of lighting units for setting a unique address and controlling a light source based on control data are connected to a signal line by bus, and each lighting unit is arranged along a road, and An output unit that outputs a control signal including control data for controlling the light source of the lighting unit and address data of the other lighting unit and receives a control signal from an arbitrary lighting unit. For example, it is possible to prevent a flow of light from a light source that is turned on with a predetermined amount of light from overtaking a vehicle, and it is possible to perform safer guidance.

According to a nineteenth aspect of the present invention, in the eighteenth aspect, each lighting section sequentially outputs a control signal in the order of addresses and performs control between the lighting sections, so that a control section for controlling each lighting section is provided. There is an effect that it becomes unnecessary.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a first embodiment.

FIG. 2 is a schematic configuration diagram showing a second embodiment.

FIG. 3 is a schematic configuration diagram showing a fourth embodiment.

FIG. 4 is a schematic configuration diagram showing a tenth embodiment.

FIG. 5 is an explanatory diagram of a main part of the above.

[Explanation of symbols]

1 control unit 2 ₁ to 2 ₄ lighting unit 3 vehicle detection unit 21 ₁ to 21 ₄ light Le power supply line Ls signal line L ₀ signal line

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI G09F 13/00 G09F 13/00 M

Claims (19)

[Claims] 1. A vehicle detection unit for detecting the presence or absence of a vehicle and a speed of the vehicle, a guidance unit including a plurality of light sources arranged along a road, and a control signal including address data and control data from the control unit. A plurality of the light sources are connected to a signal line to be transmitted, and a unique address is set. When the address data of the control signal matches the unique address, the plurality of light sources respectively control the light amounts of the respective light sources based on the control data of the control signal. And the light amount of each of the light sources via each of the lighting units so as to guide the vehicle when the vehicle is detected by the vehicle detection unit by transmitting the control signal based on the output of the vehicle detection unit. The above-mentioned control unit which sequentially changes the above-mentioned control so as to maintain the function of detecting an abnormality in the device and guiding the vehicle even in the event of an abnormality and notifying the outside that there is an abnormality in the device. An illuminating device comprising: an abnormal time guidance unit that changes a lighting state of each light source. 2. The lighting device according to claim 1, wherein the control unit has means for transmitting a control signal at regular intervals. 3. The lighting device according to claim 1, wherein the vehicle detection unit includes a unit that transmits a detection signal indicating a detection result at regular intervals. 4. The lighting section has control signal monitoring means for monitoring the reception of a control signal, and the abnormality guidance means detects by the control signal monitoring means that the control signal has not been continuously received for a predetermined time or more. The light source of the lighting section is turned on in a special lighting state when the lighting is performed.
The lighting device according to the above. 5. A lighting unit comprising: a light source; a terminal unit for generating a signal for controlling the light amount of the light source, wherein the unique address is set; and a lighting circuit unit for lighting the light source based on a signal from the terminal unit. The lighting device according to claim 1, wherein a power supply for supplying power to the terminal unit and a power supply for supplying power to the lighting circuit unit are supplied through different paths. 6. The lighting device according to claim 5, wherein the power supply to the terminal unit is supplied from the control unit via the signal line, and the lighting unit has means for separating the control signal from the power supply. apparatus. 7. The lighting section has a power supply monitoring means for monitoring the supply of power to the terminal section, and the abnormality inducing means sets the voltage of the power supplied to the terminal section by the power supply monitoring means to be lower than a predetermined value. The lighting device according to claim 5, wherein a light source included in the lighting unit is continuously turned on when it is detected that the lighting unit has dropped. 8. The control unit includes a detection signal monitoring unit that monitors reception of the detection signal, and the abnormality guidance unit detects that the detection signal monitoring unit has not received the detection signal continuously for a predetermined time or more. The lighting device according to any one of claims 1 to 7, wherein a control signal is output to each lighting unit so as to light the light source in a predetermined lighting state. 9. The illuminating device according to claim 1, wherein the lighting section has a defect detecting means for detecting whether or not a light source of the lighting section has a point. 10. The lighting section controls non-point information such that when the non-point of light source is detected by the non-point detecting means, the control section can determine the lighting section having the light source which has become the non-point. The lighting device according to claim 9, wherein the light is transmitted to a unit. 11. The control unit transmits a request signal requesting each lighting unit to return information on whether or not the light source is at a regular interval, and the lighting unit receives the request signal. The lighting device according to claim 9, further comprising: a unit that transmits information to the control unit whether the light source included in the lighting unit is a point. 12. The control unit according to claim 9, further comprising means for notifying the information to the outside, and when receiving the information indicating that the light source is out of order, the control unit notifies the information to the outside. The lighting device according to claim 11. 13. The abnormal state guiding means creates and transmits a control signal for changing the lighting state of the plurality of light sources when the control unit receives the fault information indicating that the light source is faulty. 13. The lighting device according to claim 9, wherein: 14. An illuminance detecting means for detecting ambient illuminance is connected to the control unit, and a guide for appropriately changing a control signal based on an output of the illuminance detecting means such that the higher the ambient illuminance, the higher the brightness of the light source. The lighting device according to claim 1, further comprising an effect securing unit. 15. A vehicle detection unit is installed at two locations on an entrance side and an exit side of an area where a plurality of lighting units are arranged, and the control unit responds to the contents of detection signals from both vehicle detectors. 15. The lighting device according to claim 1, wherein a control signal for changing a lighting state of the plurality of light sources is generated and transmitted. 16. The control unit is configured to calculate a speed of a vehicle obtained from a detection signal from a vehicle detection unit on an entrance side, a detection signal from a vehicle detection unit on an entrance side, and a detection signal from a vehicle detection unit on an exit side. The control unit has a means for storing the obtained speed difference of the vehicle, and the control unit generates a predetermined amount of light based on both the speed of the vehicle obtained by the detection signal from the vehicle detection unit on the entrance side and the speed difference. The lighting device according to claim 15, wherein control is performed to change a speed at which a light source to be turned on is changed. 17. When the control unit determines that the speed of the traveling vehicle is equal to or lower than a certain speed based on the detection information from the exit-side vehicle detector, the control unit does not depend on the content of the detection signal received from the entrance-side vehicle detector. 17. The method according to claim 15, wherein control is performed to change the lighting state of the plurality of light sources.
The lighting device according to the above. 18. A plurality of lighting units for setting a unique address and controlling a light source based on control data are connected to a signal line via a bus, and each lighting unit is arranged along a road, and a light source of an arbitrary lighting unit is provided. A lighting device comprising: an input / output unit that outputs a control signal including control data for controlling and address data of another lighting unit and receives a control signal from an arbitrary lighting unit. 19. The lighting device according to claim 18, wherein each of the lighting units sequentially outputs a control signal in the order of addresses, and performs control between the lighting units.