JPH10172094A - Information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To present information on a display device in accordance with the traveling state of a vehicle. SOLUTION: The velocity of a vehicle 90 is detected by a vehicle velocity detector 150 and is classified to low velocity, middle velocity, or high velocity. Arrival of the vehicle 90 is detected by a line sensor 146, and at least one of visual recognition areas L, M and S is set in accordance with the classified vehicle velocity, and LEDs of a display device 148 are so lit that information is presented to the set visual recognition area. Consequently, information is presented to each traveling vehicle in an optimum state (visual recognition area) independently of the traveling velocity of the vehicle, and information is surely recognized by a driver of each vehicle individually.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information display device, and more particularly to an information display device for providing information to a traveling vehicle.

[0002]

2. Description of the Related Art Toll facilities collect usage fees. For example, a vehicle traveling on a toll road is charged according to the type of the vehicle and the distance traveled on the toll road. A road-vehicle communication device that automatically collects tolls at entrance gates and exit gates of toll roads by radio wave communication is known as a device that automatically collects usage fees for toll facilities. In this road-to-vehicle communication device, a communication device (hereinafter referred to as a road device) in which a communication area for transmitting / receiving (communicating) radio waves to the road is set as an interrogator for inquiring information to the corresponding vehicle. A communication device (hereinafter referred to as an in-vehicle device) for responding to information inquired in the communication area is installed in a vehicle, and information is exchanged between the in-vehicle device and the on-road device by radio communication. .

[0003] Incidentally, a sign is provided near the road in order to prompt a traveling vehicle to perform an appropriate traveling state such as a speed and a traveling direction. Although the size of this sign is made relatively large in order to enhance the visibility as a standard, the visibility is greatly affected by the speed of the vehicle because it has a fixed shape. That is, low-speed vehicles have high visibility, while high-speed vehicles have low visibility.

[0004] In order to solve this problem, there is a display device that changes the size of a sign character according to the traveling speed of the vehicle in which the sign is to be recognized, thereby improving the visibility of the driver of each vehicle (actually opened). See JP-A-61-48838).

[0005]

However, in the conventional display device, although the visibility can be improved by changing the size of the sign character according to the traveling speed of the vehicle, the same information is displayed in the same size. Therefore, information cannot be provided according to the running state of the vehicle. In other words, when information is transmitted and received between the on-board unit and the on-road unit by radio communication by the above-mentioned road-to-vehicle communication device, the vehicle may be disabled when a failure such as communication failure occurs between the on-board unit and the on-road unit. Therefore, it is necessary to inform the user of the problem and provide an optimal countermeasure, for example, providing information for prompting a person to move to a manned gate. However, the information cannot be changed merely by changing the size of the sign character, so that information cannot be provided according to the running state of the vehicle.

An object of the present invention is to provide an information display device capable of providing information according to the running state of a vehicle in consideration of the above fact.

[0007]

According to an aspect of the present invention, there is provided an information display apparatus comprising: a plurality of light emitting units each capable of changing at least one of an irradiation direction and an irradiation range by light emission; Detecting means for detecting a traveling state indicating at least one of the speed of the traveling vehicle and arrival of the vehicle; setting means for setting an information providing area for the vehicle based on the detected traveling state; At least one of the irradiation direction and the irradiation range by the light emission of the light emitting unit is obtained so as to include the providing area, and the light emitting unit is displayed so that the input display information is displayed according to at least one of the obtained irradiation direction and the irradiation range. And control means for causing each of them to emit light.

According to a second aspect of the present invention, in the information display device according to the first aspect, each of the plurality of light emitting means is set to be capable of emitting light by at least one of a plurality of irradiation directions and a plurality of irradiation ranges, When the traveling vehicle is detected as having a low speed, the setting means sets a plurality of information providing areas, and the control means controls each of the light emitting means so that different display information is displayed in the plurality of information providing areas. It is characterized by emitting light.

According to a third aspect of the present invention, in the information display device according to the first or second aspect, the light emitting means is configured by combining a plurality of lamps having high directivity.

[0010] The information display device of the first aspect includes a plurality of light emitting means, each of which can change at least one of an irradiation direction and an irradiation range by light emission. By controlling the light emission of the plurality of light emitting means, that is, controlling the turning on or off of the light, information can be displayed in a display area formed by the plurality of light emitting means. Further, since at least one of the irradiation direction and the irradiation range of each light emitting unit can be changed, the range of information provision by information display, that is, the information provision area can be changed. Therefore, in the information display device of the present invention, the traveling state indicating at least one of the speed of the traveling vehicle and the arrival of the vehicle is detected by the detection unit. The setting means sets an information providing area for the vehicle based on the detected traveling state. As a result, by providing information to the set information providing area,
Information can be provided according to the traveling state of the traveling vehicle. Therefore, the control unit obtains at least one of the irradiation direction and the irradiation range by the light emission of the light emitting unit so as to include the set information providing area. At the same time, the control unit causes each of the light emitting units to emit light so that the input display information is displayed according to at least one of the obtained irradiation direction and the irradiation range. Thus, the input display information is displayed in the information providing area according to the traveling state of the traveling vehicle.

When a plurality of vehicles travel, it is necessary to provide optimal information to each vehicle. Therefore, as described in claim 2, each of the plurality of light emitting means is determined to be capable of emitting light in at least one of a plurality of irradiation directions and a plurality of irradiation ranges. Thereby, a plurality of information providing areas can be formed. The setting means sets a plurality of information providing areas when the traveling vehicle is detected as having a low speed, and the control means sets each of the light emitting means such that different display information is displayed in the plurality of information providing areas. To emit light. Thus, when a plurality of vehicles travel, the display information can be displayed and provided in the information providing area corresponding to the traveling state of each vehicle.

Further, the light emitting means may include a plurality of lamps having high directivity, for example, an LE.
It can be easily formed by combining D and a laser device.

It is to be noted that, by using each of the light emitting means capable of changing the brightness, the information providing area can be changed by changing the brightness. For example, if information is provided at the same brightness at a position distant from and close to the information display device, the visibility of the information providing region at a position distant from the information display device is reduced. Therefore, the brightness is changed according to the position and range from the information display device, and the brightness is changed according to the standard brightness and information, so that information can be stably provided regardless of the running state such as the position of the vehicle. can do.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings. The present embodiment is applied to a gate of a toll road on which an automatic charging system for automatically charging a vehicle traveling on a toll road using road-to-vehicle communication performed between an on-vehicle device and a road device operates. This is an application of the present invention. The automatic billing system used in the present embodiment performs radio communication between an in-vehicle device mounted on a vehicle and a road device having a flat antenna installed on the ground side of the gate and an intermediate route. Is a system for settling tolls and the like without stopping the vehicle.

An on-vehicle device 30 applicable to the present embodiment
As the ground-side facilities for transmitting and receiving various information to and from (details will be described later), roadside machines are installed at entrance gates of toll roads, intermediate routes immediately before or immediately after junctions, and exit gates. . In the present embodiment, a process for one lane at the exit gate will be described as an example.

As shown in FIG. 1, an exit gate 100 constituting a road aircraft has an arch 116 having an exit antenna 120 composed of a plurality of flat antennas, an exit antenna control device 132 connected to the exit antenna 120, and A road machine consisting of This exit antenna control device 132 is a separation band 1 called a so-called tall island.
10, the exit antenna control device 132 can communicate the exit gate information and the toll information of the toll road with the in-vehicle device 30 mounted on the vehicle by radio communication via the exit antenna 120. it can.

The exit gate 100 has one lane 102
And lane 102 includes separation zone 108 and separation zone 1
10 is formed. An arch 116 is provided from the separation zone 108 to the separation zone 110 so as to straddle the lane 102, and an exit antenna 120 is mounted on the arch 116 so as to be located immediately above the lane 102. Exit antenna 120 is in lane 1
02 for transmitting and receiving information to and from a vehicle traveling on the vehicle 02.

Separation zone 1 near and upstream of the arch 116
On 08, a display device 148 is provided. The display device 148 is for notifying a vehicle traveling on the lane 102 of information related to traveling, for example, a malfunction of a road device or a vehicle-mounted device (details will be described later).

A light / dark pattern 142 is provided on the lane 102 on the upstream side of the arch 116, and the line sensor 146 corresponds to the light / dark pattern 142 in correspondence with the light / dark pattern 142.
It is provided above. Light / dark pattern 142 is separation band 1
From 08 to the separation zone 110, dark portions and light portions of a predetermined width are provided on the road surface so as to be alternately located. The line sensor 146 converts the light / dark pattern 142 into the separation band 10
The detection is performed linearly from 8 to the separation band 110.

A vehicle speed detecting device 150 for detecting the speed of the vehicle traveling on the lane 102 is provided on the separation zone 108 near the light / dark pattern 142. A camera 144 for photographing the vehicle is provided on the separation zone 110 on the downstream side of the arch 116.

The exit antenna 120 is a flat antenna for communicating (transmitting and receiving) with the on-vehicle device, so that the vehicle can communicate with the vehicle regardless of the position of the lane 102. , A communication area Area covering the width of the lane 102 in the width direction is set.

As shown in FIG.
When viewed sideways, the light / dark pattern 142 provided on the lane 102 of the exit gate 100 is
, The arrival of the vehicle 90 is detected, and a vehicle speed detection device 150 for detecting the traveling speed v of the vehicle 90 is located downstream thereof. The display device 148 provided on the separation band 108 has a plurality of viewing areas L, M,
Information can be provided to S. Note that the camera 144 can photograph a vehicle that has traveled through the communication area by photographing the vicinity of the downstream side of the lane 102.

Next, the configuration of the display device 148 will be described.
The display device 148 is for providing information by displaying information to the occupants of vehicles running on the lane.

As shown in FIG. 3, the display device 148 includes a predetermined number of lamp groups 149 (for example, m and n rows, where m and n are natural numbers). It is a configuration that is arranged only planarly or aspectally,
A display screen is formed by the pixels of the large number of lamp groups 149. By controlling the lighting or extinguishing of these lamp groups 149 by a control signal from a control device 132 described later, information can be displayed on a display screen formed by a large number of lamp groups 149.

Here, a display device 148 is provided for the vehicle 90.
Are provided at each of the horizontal distance X and the vertical distance Y (see FIG. 2), the visible area from the display device 148 changes according to the vehicle speed V. That is, as the vehicle speed V increases, the visible area in traveling at the vehicle speed V increases. Therefore, in the present embodiment, the vehicle speed V
Are roughly divided into low speed, medium speed, and high speed, and the visual recognition areas L, M, and S are determined according to each vehicle speed as follows.

After the vehicle 90 traveling at a low speed arrives at the light / dark pattern 142 (detected by the line sensor 146), it travels a distance corresponding to a time during which the display on the display device 148 can be visually recognized by the occupant. Average previously determined horizontal distance X _L of the travel distance, the display device 1 including the horizontal distance X _L
The area from 48 is set as the low-speed visible area L. And the angle θ between the central axis of the visual recognition area L and the horizontal line Hor
_L and an angle θ _AL for forming the viewing area L are obtained. Therefore, information can be provided to the visible area L (display on the display device 148) by irradiating light in the irradiation range of the angle θ _AL with the angle θ _L as the optical axis, and the vehicle 90 with a low vehicle speed V can be provided. On the other hand, sufficient information can be provided.

Further, for the occupant of a vehicle running at a medium speed, the visual recognition area L becomes insufficient, and the visual recognition area must be increased from the visual recognition area L. Therefore, among the traveling distance of the vehicle occupant of a vehicle traveling at medium speed corresponds to visible time, determined in advance an average horizontal distance X _M of the travel distance of the increase from the horizontal distance X _L, setting a viewing area M to be increased at medium speed region from the display device 148 including the horizontal distance X _M. Then, the angle θ _M between the central axis of the viewing area M and the horizontal line Hor, and the viewing area M
The angle θ _AM for constructing is obtained. Accordingly, the visible area L is irradiated with light, and information is provided to the visible areas L and M (display on the display device 148) by irradiating light in the irradiation range of the angle θ _AM with the angle θ _M as the optical axis. Thus, sufficient information can be provided to the vehicle 90 whose vehicle speed V is medium.

Similarly, for the occupant of a vehicle running at a high speed, the visual recognition areas L and M are insufficient, and the visual recognition area must be further increased. Therefore, among the traveling distance of the vehicle occupant of a vehicle traveling at high speeds corresponds to a possible time viewing, previously obtained an average horizontal distance X _S of the travel distance increment from the horizontal distance X _M, setting a viewing area S to increase the area of the display device 148 including the horizontal distance X _S at high speed. Then, an angle θ _S between the central axis of the visual recognition area S and the horizontal line Hor and an angle θ _AS for forming the visual recognition area S are obtained. Therefore, while irradiating light to the visual recognition areas L and M, the angle θ _S is used as an optical axis,
By irradiating light within the irradiation range of the angle θ _AS , information can be provided to the visible regions L, M, and S (display on the display device 148), and sufficient information can be provided for the vehicle 90 whose vehicle speed V is high. Can be provided.

As described above, according to the present embodiment, the regions that can be visually recognized by the occupants of the vehicle are determined by the visual recognition regions L, M, and S according to the vehicle speed.
It is roughly divided into. As described above, each lamp group 149 of the display device 148 has the following configuration.

As shown in FIG. 4A, one pixel is formed.
One lamp group 149 includes an LED 149_L, LED1
49_M, LED149_SIt is composed of LED1
49 _LIs the horizontal line Hor and the optical axis CL_LAngle with the angle
Degree θ_L(See FIG. 4 (2)). Also, L
ED149_MIs the horizontal line Hor and the optical axis CL_MAngle made with
Is the angle θ_M(See FIG. 4 (3)), and the LED 14
9_SIs the horizontal line Hor and the optical axis CL_SAnd the angle θ
_S(See FIG. 4 (4)). Also, in FIG.
As shown, LED 149_L, LED149_M, LED
149_SAre fingers in a predetermined range (approximately 10 degrees to 30 degrees)
It has tropism.

The LED 149_L, LED149_M,
LED149_SEach mounting maintains light continuity
Part of the boundary of the irradiation range of each LED
It is preferable to install it. LED 149
_MMounting angle θ_MIs the angle θ of the viewing area L_Lfrom
Because of the increase, corners for forming the visual recognition areas L and M
Degree θ_AL, Θ_AMSet the angle to the sum of the average angles of
(Θ_M= (Θ_AL+ Θ _AM) / 2). Similarly, LED 14
9_SMounting angle θ_SIs the angle θ of the viewing area M_MFrom
, So that the visual recognition areas M and S
Angle θ_AM, Θ_ASIf you set the angle to add the average angle of
Good (θ_S= (Θ_AM+ Θ_AS) / 2).

Next, the light / dark pattern 142 and the line sensor 146 will be described. The light-dark pattern 142 and the line sensor 146 are for detecting the length in the width direction of the lane of the vehicle entering or traveling on the lane 102, that is, the vehicle width. The principle of detecting the width of the vehicle will be described.

As shown in FIG. 7, on the lane 102, a so-called striped light / dark pattern 142 having a predetermined width in the vehicle traveling direction.
Is drawn, and when the vehicle does not enter the light / dark pattern 142, the line sensor 146 outputs the light / dark pattern 14
2 alternately outputs signals corresponding to the dark and light portions. That is, the line sensor 146 performs scanning detection from one side of the light and dark pattern 142 in a predetermined direction (the direction of arrow B in FIG. 7) for a certain period of time, and as shown in FIG. A rectangular signal having a signal amplitude corresponding to the brightness is output. Thus, the line sensor 14
The output signal from 6 is a regular signal.

When a light-colored vehicle such as white (hereinafter referred to as a light-colored vehicle) enters the light-dark pattern 142,
As shown in FIG. 8B, the output signal from the line sensor 146 has an irregular portion where the signal level is large depending on the position where the light-colored vehicle has entered. When a vehicle of a dark color such as black (hereinafter, referred to as a dark vehicle) enters the light-dark pattern 142, as shown in FIG.
The output signal from the line sensor 146 has an irregular portion where the signal level is small depending on the position where the dark vehicle has entered. The disturbance of the signal obtained from these light and dark patterns 142 corresponds to the arrival of the vehicle. in this way,
The arrival of the vehicle can be detected based on the output signal from the line sensor 146.

As shown in FIG. 6, the on-road unit as a ground-side device for vehicles traveling on the lane 102 includes an exit antenna 120, a line sensor 146, a display device 148, a vehicle speed detection device 150, a camera 144, and an exit antenna control device. 132. The exit antenna control device 132 includes a CPU 172, a RAM 174, and a ROM 176.
And a microcomputer comprising an input / output port (I / O) 178, each of which is connected by a bus 180 so that commands and data can be exchanged. The ROM 176 stores a processing routine described later. The exit antenna 120 is connected to the input / output port 178 via a transmission / reception control device 152 described later. In addition, a line sensor 146 is connected to the input / output port 178 via a driver 154 for amplifying the detection signal and converting it into a digital signal. Further, the input / output port 178 is provided with an LE that constitutes each lamp group 149.
D149 _L, LED149 _M, LED149 driver for driving the respective _S 156A, 156B, 15
The display device 148 is connected via 6C. Further, a vehicle speed detection device 150 is connected to the input / output port 178 via a driver 158, and a camera 144 is connected via a driver 160.

Next, the transmission / reception control device 152 for performing transmission / reception processing for the exit antenna 120 will be described.

As shown in FIG.
Is composed of a transmitting antenna 22 and a transmitting / receiving antenna 26. The transmission / reception control device 152 has an input / output port 1
A signal processing circuit 12 is provided for processing a signal in accordance with data and commands input / output from / to 78. The signal processing circuit 12 is connected to a transmission circuit 14 that transmits a data signal (communication request signal) including an instruction. The transmission circuit 14 is connected to a transmission antenna 22 via a mixer 18. The mixer 18 is connected to a carrier generation circuit 20 for generating a carrier having a predetermined frequency. The mixer 18 mixes a signal input from the transmission circuit 14 and a carrier input from the carrier generation circuit 20, and Modulates the carrier wave input from the carrier wave generation circuit 20 with the signal input from. The modulated wave is transmitted from the transmitting antenna 22 as a radio wave. The carrier wave generation circuit 20 is connected to a transmission / reception circuit 24 that extracts a data signal from a modulated wave that is modulated and returned from the on-vehicle device 30 and received by the transmission / reception antenna 26. This transmission / reception circuit 24 is connected to the signal processing circuit 12.

The on-road equipment installed at the entrance gate, the intermediate route, etc. has the same configuration as the exit gate, and can be connected to a central computer (not shown). As described above, by connecting each on-road unit to the central computer (not shown), information on vehicles entering the toll road, route information indicating what route the vehicle has traveled, and It is possible to manage tollgate information indicating that charging has been performed in an integrated manner.

The exit gate 100 may be provided with a conventional tollgate box for paying tolls manually. Further, a pass ticket issuing device may be provided at the entrance gate.

As shown in FIG. 10, the on-vehicle device 3 mounted on the instrument panel of the vehicle 90 for communicating with the above-mentioned on-road device.
0 is provided with an IC card read / write device 60 to which an IC card 62 in which information such as remaining charge information is stored is detachable. The in-vehicle device 30 includes a storage circuit 4 storing fixed data such as an ID code including a vehicle number and vehicle type information.
8 and refers to charge balance information of the IC card 62 mounted by the IC card read / write device 60 and writes remaining charge information to the IC card 62.

More specifically, the on-vehicle device 30 includes a receiving antenna 32 for receiving a signal transmitted from a road device.
The reception antenna 32 is connected to a detection circuit 34 that detects a modulated wave received by the reception antenna 32 and obtains a data signal. The detection circuit 34 is connected via a data signal receiving circuit 44 to a signal processing circuit 46 including a microcomputer.

The signal processing circuit 46 includes a storage circuit 48 for storing data such as charge balance information indicating a balance for toll collection, an ID code, and vehicle type information indicating a type of a mounted vehicle, and a data signal including an ID code. Is transmitted as a response signal. The transmission circuit 50 modulates an inquiry signal, which is a non-modulated carrier received by the transmission / reception antenna 52, with a data signal from the signal processing circuit 46, and transmits / receives the transmission signal. Return via 52. The signal processing circuit 46 is connected to an IC card read / write device 60 to which an IC card 62 can be attached and detached.

The mounting position (mounting position) of the vehicle-mounted device 30
Is not limited to the instrument panel of the vehicle as described above, but may be any position as long as the antenna can communicate with the on-road unit, and may be, for example, in a vehicle such as a rear seat. Further, the in-vehicle device 30 may have a separate configuration including the in-vehicle device body and the antenna. When the in-vehicle device main body and the antenna are configured separately as described above, only the antenna can be installed on the instrument panel or at a position in the direction of the rear seat as described above, and the mounting position information indicates that the antenna is It shall be registered for the installed position.

The vehicle-mounted device is constantly supplied with power from a vehicle-mounted battery when the ignition is turned on.

Next, the operation of the present embodiment will be described. As shown in FIG. 11, in the on-road unit, the traveling speed (vehicle speed V) of the vehicle immediately before reaching the line sensor 146 is detected by reading the output signal of the vehicle speed detection device 150 in step 300. In the next step 304, it is determined whether or not the vehicle 90 is a low-speed vehicle by determining whether or not the vehicle speed V is lower than the first speed V1. If V ≧ V1, a negative determination is made in step 304 and the process proceeds to step 306. On the other hand, if V <V1, an affirmative determination is made in step 304, and the process proceeds to step 314 after performing the low-speed mode setting process in step 308. This low-speed mode setting process is a process for setting a visible region for a vehicle traveling at a low speed, and here, a visible region L is set.

In step 306, the vehicle speed V is set to the first speed V
It is determined whether or not the vehicle 90 is a medium-speed vehicle by determining whether or not the vehicle speed is one or less than the second speed V2. If V> V2 (V2> V ≧ V1), it is determined that the vehicle is running at a medium speed, and after performing the medium speed mode setting process at step 310, the process proceeds to step 314. on the other hand,
If V ≧ V2, it is determined that the vehicle is traveling at high speed,
After performing the high-speed mode setting process in step 312, the process proceeds to step 314. The medium speed mode setting process is a process for setting a visual recognition region for a vehicle traveling at a medium speed. Here, the visual recognition regions L and M are set. The high-speed mode setting process is a process for setting a visual recognition region for a vehicle traveling at high speed.
M and S are set.

In step 314, steps 308 and 3
The lighting time of the display device in the mode set in any of 10 and 312 is set. The lighting time of the display device corresponds to the time during which the vehicle traveling at the detected vehicle speed V passes through the visual recognition area set above. In addition, you may make it light for a fixed time regardless of the said setting mode.

In the next step 316, the line sensor 146 is read until the vehicle arrives, and when the arrival of the vehicle is detected, the flow proceeds to step 318. That is, as described above, the output signal of the line sensor 146 is detected, and if disturbance occurs, the process proceeds to step 318. In step 318, information to be displayed is read, and
Displaying the display device 148 by the mode set in one of 08,310,312, namely by turning on at least one of the LED149 _L, LED149 _M, LED149 _S constituting each lamp group displays information. The display of this information can prompt, for example, appropriate adjustment of the vehicle speed when the vehicle speed V for performing road-to-vehicle communication is previously set to be low. That is, as information to be displayed, information corresponding to the vehicle speed V, for example, "Please proceed as it is" for low-speed traveling vehicles, "Please slow down" for medium-speed traveling vehicles, and " By reading and displaying `` Please decelerate, '' etc., it is possible to prompt the occupant to adjust the vehicle speed according to the vehicle speed at which the vehicle is traveling so as to follow the vehicle speed for road-to-vehicle communication. .

The information to be displayed may be the same information. For example, the communication device on the roadside is malfunctioning,
When guidance to the manned gate is required, information such as "Please proceed to the manned gate" is displayed to provide information to the optimal viewing area regardless of low, medium, or high vehicle speed. Therefore, the information can be surely recognized by the occupant of the vehicle regardless of the traveling speed of the vehicle.

Next, each lamp group is turned on until the lighting time set in step 314 is reached. When the lighting time has elapsed (negative determination in step 320), each lamp group is turned off in the next step 322. Then, this routine ends.

After performing the above processing, communication processing is performed between the on-vehicle device 30 on which the vehicle 90 is mounted and the on-road device, and toll collection processing and the like are performed.

In the present embodiment, the exit antenna 1
Although the case where the display device 148 is provided on the upstream side of 20 has been described, the present invention is not limited to this, and may be provided on the downstream side of the exit antenna 120. In this case, it is possible to display information according to the result of communication between the on-road unit and the on-board unit. For example, for vehicles with poor communication between roadside units and onboard units, and vehicles without onboard units that do not perform communication processing, guidance to manned gates is necessary,
By displaying information such as "Please proceed to the manned gate", information is provided in the optimal viewing area regardless of whether the vehicle is going to pass at low, medium or high speed. Therefore, the information can be surely recognized by the occupant of the vehicle regardless of the traveling speed of the vehicle.

As described above, in the present embodiment, it is possible to detect the traveling speed of the vehicle, set a visual recognition area corresponding to the traveling speed, and provide information to the set visual recognition area. That is, the traveling speed of the vehicle is classified into a low speed, a medium speed, and a high speed, and the visual recognition area is set according to each traveling speed. For this reason, since the visual recognition area increases as the traveling speed increases, an optimal state (visual recognition area) for each of the traveling vehicles regardless of the traveling speed of the vehicle.
And the information can be provided, and the occupants of each vehicle can be individually made aware of the information.

Next, a second embodiment will be described. In addition,
Since the present embodiment has substantially the same configuration as the above-described embodiment, the same portions are denoted by the same reference numerals and detailed description thereof will be omitted.

As shown in FIG. 12, a line sensor 146 constituting the on-road unit according to the present embodiment includes a first sensor 146.
A, a second sensor 146B, a third sensor 146C, and a fourth sensor 146D. First sensor 14
6A is connected to an input / output port 178 of the exit antenna control device 132 via a driver 154A for amplifying the detection signal of the first sensor 146A and converting it to a digital signal. Similarly, the second sensor 146B is connected to the input / output port 178 via the driver 154B,
The sensor 146C is connected to the input / output port 178 via the driver 154C, and the fourth sensor 146D is connected to the input / output port 178 via the driver 154D.

Although not shown, the first sensor 14
6A, the second sensor 146B, the third sensor 146C, and the fourth sensor 146D.
42A, 142B, 142C, 142D are in lane 102
It is provided above.

As shown in FIG. 13, when the exit gate 100 of the present embodiment is viewed from the side, the position where the vehicle 90 can enter the visual recognition areas L, M, and S described in the above embodiment can be detected. (A position where the arrival can be detected) and a position where the passage of the visual recognition area S can be detected.
2A to 142D and each of the line sensors 146 are provided. That is, the brightness pattern 142A corresponds to the position of the vehicle 90 when the vehicle 90 enters the visual recognition area L.
And a first sensor 146A is provided, and a light / dark pattern 142B and a second sensor 146B are provided corresponding to the position of the vehicle 90 when the vehicle 90 enters the viewing area M, and the vehicle 90 enters the viewing area S. Pattern 142C and the third sensor 146C corresponding to the position of the vehicle 90 of FIG.
Is provided. Further, the light / dark pattern 14 corresponds to the position of the vehicle 90 when the vehicle 90 passes through the visual recognition area S.
A 2D and fourth sensor 146D are provided. Accordingly, each of the light and dark patterns 142A, 142B, 142C, 142D provided on the lane 102 of the exit gate 100 is converted into the first sensor 146A, the second sensor 146B, and the third sensor 146B.
By detecting each of the sensor 146C and the fourth sensor 146D, it is possible to detect the arrival of the vehicle 90 in the visual recognition areas L, M, and S, and to detect that the vehicle 90 passes through the visual recognition area S.

Next, the operation of the present embodiment will be described. As shown in FIG. 14, in the on-road unit, the first sensor 146A until the vehicle arrives at the visual recognition area L in step 330.
When the arrival of the vehicle is detected, the process proceeds to step 332. That is, similarly to the above-described embodiment, the output signal of the first sensor 146A is detected, and if disturbance occurs, the process proceeds to step 332. In step 332, the display device 148 is displayed in the first state in order to read the information to be displayed and to provide the information to be displayed to the viewing area L. This first state corresponds to the LED constituting each lamp group.
LE out of 149 _L , LED 149 _M and LED 149 _S
D149 _L is turned on to display information.

Next, at step 334, the second sensor 146B is read until the vehicle arrives at the visual recognition area M, and when the output signal of the second sensor 146B is disturbed to detect the arrival of the vehicle, the routine proceeds to step 336. Step 33
At 6, the information to be displayed is read and displayed on the display device 148 in the second state in order to provide the information to be displayed to the viewing area M. The second state is a state that displays information by lighting the LED149 _M of each lamp group. After the information is displayed on the display device 148 in the second state, since the vehicle 90 has passed through the visual recognition area L, the display device 148 is displayed in the next step 338.
The first state is turned off by turning off the respective LED149 _L of.

Next, at step 340, the third sensor 146C is read until the vehicle arrives at the visual recognition area S, and when the output signal of the third sensor 146C is disturbed to detect the arrival of the vehicle, the process proceeds to step 342. Step 34
At 2, the information to be displayed is read and displayed on the display device 148 in the third state in order to provide the information to be displayed to the viewing area S. The third state is a state that displays information by lighting the LED149 _S of each lamp group. After the information is displayed on the display device 148 in the third state, the vehicle 90 has passed through the visual recognition area M, and therefore, in the next step 344, the display device 148 is displayed.
The second state is turned off by turning off the respective LED149 _M of.

In the next step 346, the fourth sensor 146D is read until the vehicle passes through the visual recognition area S, and the fourth sensor 146D is read.
When the passage of the vehicle in the visual recognition area S is detected due to the disturbance of the output signal of the sensor 146D, the process proceeds to step 348. This step 348 is performed by each LED 149 of the display device 148.
_By turning off the light _S , the third state is turned off, and the display device 1
The information provision by 48 is terminated. The turning off in the third state is after the vehicle has passed through the viewing area S, and it is not necessary to provide information to the viewing area S.

As described above, in this embodiment, the approach of the vehicle is detected for each visual recognition area, and when the approach of the vehicle is detected,
Information on the detected visual recognition area is displayed. That is, the visual recognition area is set in synchronization with the position of the vehicle regardless of the traveling speed of the vehicle. Thus, information can be provided to the occupant according to the traveling position of the vehicle, regardless of the speed of the vehicle traveling.

Next, a third embodiment will be described. In addition,
Since the present embodiment has substantially the same configuration as the above-described embodiment, the same portions are denoted by the same reference numerals and detailed description thereof will be omitted.

The automatic charging system according to the present embodiment is configured by combining the automatic charging systems according to the first and second embodiments. That is, a vehicle speed detecting device 150 for detecting the traveling speed of the vehicle, and a first vehicle speed detecting device for detecting the entry of the vehicle for each visual recognition area.
Sensor 146A, second sensor 146B, third sensor 14
Light and dark patterns 142A, 142B, 142C, and 142D are provided on the lane 102 corresponding to each of the 6C and the fourth sensor 146D.

Next, the operation of the present embodiment will be described. As shown in FIG. 15, the on-road unit detects the vehicle speed V of the vehicle immediately before reaching the line sensor 146 (step 30).
0), it is determined whether the vehicle 90 is running at low speed, medium speed or high speed (steps 304 and 30).
6). If the vehicle is traveling at a low speed, after performing the low-speed mode setting process in step 350, the process proceeds to step 356.
Proceed to. The low-speed mode setting process according to the present embodiment is a process for setting a visual recognition region for a vehicle traveling at a low speed. Here, the visual recognition region L is set, that is, the LED 149 is set.
_L is set as the LED to be lit. In order to provide information to the vehicle 90 by irradiating the visible region L with the light, it is necessary to detect the timing of the display device 148 irradiating the visible region L with light, that is, turning on and off the LED. Therefore, in step 350, the first sensor 14 is used to detect the lighting timing of the visual recognition area L.
6A and a light / dark pattern 142A are set, and each L
The second sensor 146B and light-dark pattern 142B is set to the ED149 _L off timing detection.

If the vehicle is traveling at medium speed, step 3
52, and after performing the medium speed mode setting processing, proceeds to step 3
Proceed to 56. Honchu speed mode setting process is a process for setting a viewing area for the vehicle of medium speed, wherein the viewing area L, M is set, i.e., the lighting of the LED149 _L and LED149 _M is set. This viewing area L,
In order to provide information to the vehicle 90 by irradiating light to M, it is necessary to detect the irradiation timing of light in the visible areas L and M by the display device 148, that is, to turn on and off the LED. In the present embodiment, the visual recognition areas L, M
In step 352, the first sensor 146A and the light / dark pattern 142 are used to detect the lighting timing of simultaneous lighting of the visual recognition areas L and M.
A is set, and the third sensor 146C and the light / dark pattern 142 are used to detect the timing of turning off each LED.
C is set. Similarly, if the vehicle is running at high speed, the flow proceeds to step 354, and after performing high-speed mode setting processing, proceeds to step 356. This high-speed mode setting process
This is a process for setting a visual recognition area for a high-speed traveling vehicle. Here, the visual recognition areas L, M, and S are set, that is, the lighting of the LED 149 _L , the LED 149 _M, and the LED 149 _S is set. In order to provide information to the vehicle 90 by irradiating the visible areas L, M, and S with light,
It is necessary to detect the irradiation timing of the light in the visual recognition areas L, M, and S by the display device 148, that is, the turning on and off of the LED. In the present embodiment, in order to simultaneously irradiate light to the visible regions L, M, and S, in step 354, the first sensor 146A and the light / dark pattern are used to detect the lighting timing of simultaneous lighting of the visible regions L, M, and S. 142A
Is set, and the fourth sensor 146D and the light / dark pattern 142D are used to detect the turning-off timing of each LED.
Is set.

As described above, the visual recognition area according to the vehicle speed of the vehicle 90 is set. Along with this, a line sensor and a light / dark pattern for detecting a lighting timing for detecting a timing of turning on the LED when the vehicle enters the set visual recognition area, and turning off the LED that is lit when the vehicle passes through the visual recognition area. A line sensor for detecting a light-off timing and a light-dark pattern for detecting the timing of the light-off are set.

Next, at step 356, whether the vehicle 90 has arrived at the visual recognition area is detected by detecting the disturbance of the output signal due to the lighting timing detection line sensor and the light / dark pattern set at steps 350 to 356. When the vehicle 90 arrives, the process proceeds to step 358, and the LED is turned on to irradiate light to the visual recognition area set in steps 350 to 356. In the next step 360, it is determined whether or not the vehicle 90 has passed the visual recognition area by detecting a disturbance of the output signal due to the line sensor for detecting the light-off timing and the light / dark pattern. Then, the lighted LEDs are turned off, and this routine ends.

As described above, in the present embodiment, since the traveling speed of the vehicle is detected, the visual recognition area corresponding to the traveling speed is set, and the sensor for detecting the timing of turning on and off is set. It is possible to provide information to a viewing area where a time for viewing can be secured in accordance with the traveling speed of the vehicle. Further, since the provision of information by turning off the LED is terminated when the vehicle passes through the set visual recognition area, the transition to the provision of information to the following vehicle can be easily performed in a short time. As a result, the optimum state (visual recognition area) for each of the traveling vehicles regardless of the traveling speed of the vehicle
And the information can be provided, and the occupants of each vehicle can be individually made aware of the information.

In the above embodiment, each LED that provides information in a plurality of viewing areas according to the traveling speed (medium speed or high speed)
Is turned off at the same turn-off timing, but it may be turned off every time the vehicle passes through each viewing area. If the light is turned off each time the vehicle passes each visual recognition area, the visual recognition area that does not need to provide information, that is, the visual recognition area where the vehicle has passed, can stop providing information by turning off the LED at the time of passing, and provide information to the following vehicle The transition to is easy in a short time.

In the above-described embodiment, a case has been described in which information is provided to one traveling vehicle by the display device. However, the present invention is not limited to this. When a plurality of vehicles are in a low-speed or stopped state, different information can be provided to the plurality of vehicles. For example, when a plurality of vehicles run in that state, it is highly likely that processing such as parking fee collection is normally performed for the first vehicle, but the required processing time is large, and subsequent vehicles If it is preferable to go to the exit or entrance of the vehicle, "Please proceed as it is" is displayed for the first vehicle, and "Please proceed to another entrance or exit" is displayed for the following vehicle. This makes it possible to intentionally provide information for each vehicle.

[0072]

As described above, according to the present invention, the traveling state such as the speed and arrival of the traveling vehicle is detected by the detecting means, and the information provision area for the vehicle is set by the setting means based on the detected traveling state. However, since each light emitting means is controlled to include the information providing area, there is an effect that information can be provided by displaying the display information in the information providing area corresponding to the traveling state of the traveling vehicle.

When a plurality of vehicles are traveling, a plurality of information provision areas are set by the setting means when the traveling vehicle is detected as having a low speed, and different display information is displayed in the plurality of information provision areas. Since the control means causes each of the light emitting means to emit light, it is possible to provide different information in each of the plurality of information providing areas, and to display and provide the display information in the information providing area according to the traveling state for each of the plurality of vehicles. There is an effect that can be.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an exit gate in an automatic charging system according to a first embodiment of the present invention.

FIG. 2 is an image diagram showing a relationship around a display device of a road device of the vehicle according to the first embodiment.

FIG. 3 is a diagram showing a schematic configuration of a display device.

FIG. 4 is a diagram showing a schematic configuration of a lamp group included in the display device.

FIG. 5 is a diagram showing the directivity of LEDs constituting a lamp group.

FIG. 6 is a block diagram illustrating a schematic configuration of a road machine according to the first embodiment.

FIG. 7 is a diagram showing a light-dark pattern for detecting arrival of a vehicle.

FIG. 8 is a time characteristic diagram showing an output signal of a line sensor.

FIG. 9 is a block diagram illustrating an example of a transmission / reception control device that performs transmission / reception processing with an exit antenna of a road device.

FIG. 10 is a block diagram showing an in-vehicle device.

FIG. 11 is a flowchart showing a processing routine on the road device according to the first embodiment;

FIG. 12 is a block diagram illustrating a schematic configuration of a road machine according to a second embodiment.

FIG. 13 is an image diagram showing a relationship around a display device of an on-road unit of a vehicle according to a second embodiment.

FIG. 14 is a flowchart showing a processing routine on the road device according to the second embodiment;

FIG. 15 is a flowchart illustrating a processing routine on the road device according to the third embodiment;

[Explanation of symbols]

 100 exit gate 132 exit antenna control device 146 line sensor 148 display device

Claims (3)

[Claims] 1. A plurality of light emitting units each capable of changing at least one of an irradiation direction and an irradiation range by light emission, a detection unit detecting a speed of a traveling vehicle and a traveling state indicating at least one of arrival of the vehicle, Setting means for setting an information providing area for the vehicle based on the detected traveling state; and determining at least one of an irradiation direction and an irradiation range by light emission of the light emitting means so as to include the set information providing area, An information display device comprising: a control unit that causes each of the light-emitting units to emit light so that input display information is displayed according to at least one of the obtained irradiation direction and irradiation range. 2. Each of the plurality of light emitting means is set to be capable of emitting light by at least one of a plurality of irradiation directions and a plurality of irradiation ranges, and when the traveling vehicle is detected as having a low speed, the setting means includes a plurality of light emitting means. The information display device according to claim 1, wherein an information providing area is set, and the control unit causes each of the light emitting units to emit light such that different display information is displayed in a plurality of information providing areas. 3. The apparatus according to claim 1, wherein said light emitting means is constituted by combining a plurality of lamps having high directivity.
Or the information display device according to 2.