JP2001167384A - Traffic data displaying and processing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traffic data displaying and processing system which transmits data on roadside equipment to on-vehicle equipment by radio and allows the side of the on-vehicle equipment to visualize this data. SOLUTION: The roadside equipment is provided with a radio communication function, and a radio road sign 1, a radio signal equipment 2, a radio warning and advertising panel 3, etc., are constituted. By communicating data by radio between these sign 1, equipment 2, panel 3 and the on-vehicle equipment 5, data similar to contents displayed by the sign 1, the equipment 2, the panel 3, etc., is displayed on the multi-display 7 for the equipment 5 to inform a driver of the data.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for displaying and processing traffic data.
On roadside equipment and in-vehicle devices using wireless
Traffic data configured to exchange data with the aircraft
It is useful when applied to a data system. [0002] E for the purpose of automatic toll collection on toll roads
TC (Electronic Toll Colle)
ction) system is based on ITS (Intellige)
ntTransport Systems)
Is attracting attention as an application that can be realized in the future.
This ETC system is a roadside radio installed at a tollgate.
Charges are collected by wireless communication between the vehicle and the radio mounted on the vehicle
That allows you to
Both sides non-stop cash toll collection points on toll roads
It is possible to pass with less. [0003] On the other hand, suitable for the road
Roadside equipment such as signs, traffic lights, and notice boards installed
(Hereinafter referred to as roadside equipment) and a car traveling on the road
Between the radio equipment mounted on both (hereinafter referred to as onboard equipment)
The required data can be exchanged using wireless.
It is convenient if you can. For example, data from roadside devices can be transmitted wirelessly.
The data is transmitted to the on-board unit, and this data is visualized by the on-board unit.
Voice-to-speech ensures that drivers have the data they need
Because it is thought that it can be conveyed. But,
Such traffic data display and processing systems have not yet been proposed.
Not in. By the way, in the ETC system as described above
Roadside equipment and on-board equipment are designed for toll collection on toll roads.
Are not appropriate for multiple applications.
What is the configuration for transmitting image data from roadside equipment?
Not. [0004] In view of the above prior art, the present invention is directed to a roadside machine.
The data of the device is transmitted wirelessly to the in-vehicle device.
Visualize or voice the data of the roadside equipment and
Necessary by transmitting and receiving data in both directions with onboard equipment
Traffic data display and processing that can display
The purpose is to provide a management system. [0005] The present invention achieves the above object.
The configuration of Ming is characterized by the following points. 1) Changing display contents by electronic means
Signs and traffic signals as electronic display means configured to
Or provide wireless communication function to roadside devices such as warning boards
The data of the content displayed on the electronic display means by radio waves.
On-board, a wireless receiver mounted on the vehicle
The above-mentioned radio waves are received and processed by the
Display means to display the contents of the electronic display.
When. 2) Traffic data display described in 1) above
・ In the processing system, the electronic display hand on the roadside equipment
With multiple steps, the display contents of each electronic display
Display on the display means. 3) The traffic data described in 1) or 2) above
In data display and processing systems, roadside equipment
Compression function, and the onboard unit has this data expansion function
It was configured as follows. 4) Any of the above 1) to 3)
In one traffic data display and processing system,
The device is connected to the upper communication station by a communication line or wireless.
In addition to being configured to enable communication,
Table on roadside equipment based on data from
In the control of the roadside device, such as the display contents by the indicating means
It is configured so that the contents can be changed. 5) Any of the above 1) to 4)
In one traffic data display and processing system,
Is a data stream that stores data sent from roadside equipment.
Storage means, and the data storage means
The data stored in the memory can be displayed later on the display means.
That it can be configured. 6) Any of the above 1) to 5)
In one traffic data display and processing system,
Is the sound that converts the data sent from the roadside equipment to sound.
Having voice conversion means. 7) Any of the above 1) to 6)
In one traffic data display and processing system,
Is a vehicle control unit based on data transmitted from roadside equipment.
Control for controlling the various parts of the vehicle by controlling the vehicle
Have an interface. 8) Any of the above 1) to 7)
In one traffic data display and processing system,
Device including a display unit including electronic display means and a transmission antenna
It is divided into an antenna part and a line driver on the display part,
In addition, a line receiver is built in each antenna part
To extend the line driver and line receiver.
By connecting with a cable, electronic display means and transmission antenna
Added the ability to physically increase the distance between
thing. 9) Any of the above 1) to 8)
In one traffic data display and processing system,
The transmitter antenna is formed by a plurality of transmitting antennas,
Send data to the onboard unit. 10) Any of the above 1) to 9)
Roadside in one traffic data display and processing system
A reflector is installed near the transmitting antenna of the device,
The reflected radio wave is transmitted by the reflector and received by the onboard unit
That it can be made to be. 11) Any of the above 1) to 9)
Roadside in one traffic data display and processing system
Form the transmitting antenna of the equipment with a leaky cable or leaky tube.
Was it. 12) What is described in 1) to 11) above
In one traffic data display and processing system,
A transmission function has been added to the onboard
Roadside that the first vehicle received
Transmits data from devices sequentially to vehicles behind it wirelessly
That it was configured to. 13) Traffic data described in 12) above
In a display / processing system, one in-vehicle device
Data is sent only to the device. 14) What is described in 1) to 13) above
In one traffic data display and processing system,
On-board equipment has a wireless data transmission function, and roadside equipment has a wireless data transmission function.
Data reception functions, respectively, so that roadside equipment and in-vehicle equipment
To enable two-way communication between
The display content of the electronic display means of the roadside device can be changed.
That I can do it. Embodiments of the present invention will be described below with reference to the drawings.
It will be described in detail based on FIG. FIG. 1 is a general overview of each embodiment of the present invention.
FIG. As shown in the figure, roadside equipment
As wireless road sign 1, wireless signal 2, wireless
Warning / advertising board 3 etc. can be considered, these wireless road signs
1, wireless signal 2, wireless warning / advertising board 3
Each has a wireless device for wireless communication,
Radio waves are transmitted to onboard equipment via antennas 1a, 2a, 3a
It is supposed to. Also, such wireless road sign
1, wireless signal 2, wireless warning / advertising board 3 type,
Table 1 below shows the purpose and service contents
The following can be cited as an example. <Table 1> Details of application Application Type Purpose Services Road sign Prohibition of entry / one-way driving cadence Change of display contents according to time and time, instruction to display detour route on multi-display of onboard unit Speed limit Driving cadence Restriction according to outside temperature, humidity, and traffic congestion information Speed notification Vehicle speed control Vehicle cruising control according to speed limit Control of horn horn Vehicle control Automatic horn sounding where horn is permitted Parking prohibited Driving cadence Warning in parking prohibited area, multiple display in close proximity In the parking lot Indicate location Traffic light Blue, yellow, red information Driving guidance Notification of traffic signal information (blue, yellow, red) (Especially effective when the traffic light is not visible) Waiting time Driving distance Notifying the driver of the signal waiting time Waiting time Vehicle control Idling Automatic stop control of emergency vehicle signal control Emergency vehicle signal is given priority in blue Change Warning / advertisement board Danger sign Driving guidance Instruction for deceleration in areas where children jump out Warning for deceleration at traffic accident sites Warning in depopulated areas, etc. Instruction for chain installation Indication of oncoming vehicles in places with poor visibility Obstacles / Warnings / alarms during construction The on-vehicle device 5 mounted on the vehicle 4 is a wireless terminal.
Machine 6, multi-display 7, data compression / decompression module
Rules 8, voice module 9, database 10, and vehicle
It has a control interface 11, etc.
The buses 12 communicate with each other. Of these, nothing
The line terminal 6 is a wireless road sign 1, a wireless signal 2, a wireless alarm
Receiving the radio wave from the advertisement / advertising board 3 and via the dedicated bus 12
To transmit necessary data to each device. Multi display
A7 displays and obtains data obtained from the wireless terminal 6
It is possible. The data compression / decompression module 8
When processing large data such as image data
This is for compressing or expanding this data. sound
The voice module 9 provides voice guidance for wireless communication data.
It is for the purpose. The database 10 stores communication data.
It is a storage unit. The vehicle control interface 11 is a vehicle control
Each part of the vehicle (for example,
, Auto cruising equipment, etc.)
Interface. Note that the modules on the vehicle-mounted unit are as described above.
It is not limited to. On the other hand, for example, cryptographic modules and I
A C card module or the like is conceivable. Embodiments based on the basic concept as described above
Is as follows. <First Embodiment> FIG. 2 shows a first embodiment.
Block showing a traffic data display and processing system
FIG. As shown in FIG.
20 has a wireless communication function and is equipped with a vehicle-mounted device 25
Make data visible and visible to both drivers
It was done. Here, is the on-board unit 25 the roadside device 20?
Data (image data, application data
Data processing (image display, audio announcement, character display)
It has a function to do. In addition, the present embodiment
As a road sign, traffic light or warning / advertising board
It is built as a system that displays two contents. sand
That is, it corresponds to a single application.
The display contents in each application in this case are as described above.
Those shown in Table 1 are conceivable. However, the contents of Table 1
Is an example only and may be used as traffic information.
There are no special restrictions if they are useful. As shown in FIG. 2, this embodiment employs a CPU 21
The data created in the electronic display (predetermined data
Road signs, traffic lights or warnings configured to display
Indicators such as advertising boards, and so on. ) 22
, The in-vehicle device 2 by the radio wave 24 via the transmitting antenna 23.
5 More specifically, the operation is performed by the CPU 21.
The generated data is combined with the packet data by the packet generator 26.
And supplied to the mixer 27. This mixer 2
At 7, the packet data is oscillated by the oscillator 28.
Modulates with a carrier wave and transmits through a transmitting amplifier 29 to a transmitting antenna.
23. On the other hand, in the vehicle-mounted device 25, the receiving antenna 30 is
Radio wave 24 received through the receiver is amplified by the receiving amplifier 31
After that, it is supplied to the mixer 32. In this mixer 32, oscillation
The roadside device 20 sends out based on the reference signal oscillated by the device 33
The demodulated predetermined packet is demodulated and transmitted through the filter 34.
It is supplied to the ket disassembler 35. This packet decomposer 35
Then, together with the packet data extracted from the packet,
The constant display data is supplied to the CPU 36. CPU 36
The above information is displayed on a display 37 such as a multi-display in the passenger compartment.
Display data. Thus, the driver in the passenger compartment
Corresponding to the display content of the electronic display 22 of the local device 20.
Data as data displayed on the display device 37.
be able to. Here, the driver operates the keypad 38
To control the CPU 36 to display on the display 37.
Control is performed. <Second Embodiment> FIG. 3 shows a second embodiment.
Block showing a traffic data display and processing system
FIG. As shown in FIG.
The device 20 executes a plurality of different applications.
And the vehicle-mounted device 25 is connected to the roadside device 20.
Application according to the application
It has a processing function of executing an action. Sand
That is, in the present embodiment, as shown in FIG. 3, the first embodiment shown in FIG.
Application processing units 39 and 40 are added to the embodiment.
It is a thing. Here, the application processing unit 39
Multiple applications in this case, eg roads
CPU21 displays the contents of signs, traffic lights and warning / advertisement boards
To the packet generator 26 under the control of. in this case
Are divided by time sharing.
The data is sequentially switched and transmitted. In the vehicle-mounted device 25, the CPU 36
Under the control of the application processing unit 40
Is superimposed on the data from the roadside device 20 and displayed on the display 37.
indicate. That is, the data transmitted from the roadside device 20
Is displayed on the display screen of the display 37, for example.
Make sure that the layout
Process so that it is displayed folded. In FIG. 3, FIG.
The parts corresponding to the function blocks are assigned the same numbers.
Duplicate description will be omitted. According to the present embodiment, the roadside device 20 is
Applications can be displayed and multiple applications
The contents of the service can be transmitted to the vehicle-mounted device 25. As a result,
25 can process and display multiple applications
it can. <Third Embodiment> FIG. 4 shows a third embodiment.
Block showing a traffic data display and processing system
FIG. As shown in FIG.
The device 20 is a roadside device 2 according to the second embodiment shown in FIG.
0 and a data compressor 41 added.
The image data on the application of the roadside device 20
If there is, the image data is compressed and sent to the on-vehicle device 25.
It is something that I believe. On the other hand, the on-board
A data expander 42 is additionally provided, and the
Decompresses (decompresses) the compressed data sent from the
The image is displayed. That is, roadside equipment
The data compressed by the data compressor 41 of the CPU 20
Is transmitted to the packet generator 26 via the
The data is sent to the vehicle-mounted device 25 as data. On-board unit 25
Received this packet data and performed predetermined processing
After that, decompression processing is performed under the control of the CPU 36, and the original data
And displays an image based on this data on the display 37.
It is supposed to. Note that, in FIG. 4, each functional block of FIG.
The same number is assigned to the part corresponding to the lock,
Description is omitted. Further, the data compressor 41 in the present embodiment
And a data decompressor 42 according to the first embodiment shown in FIG.
Of course. According to the present embodiment, the data compressor 41
Map information, store menu, fee, etc.
Large image data can be compressed and transmitted.
High-speed data transmission even in a limited wireless communication area
Wear. <Fourth Embodiment> FIG. 5 shows a fourth embodiment.
Block showing a traffic data display and processing system
FIG. As shown in FIG.
The device 20 is a roadside device 2 according to the third embodiment shown in FIG.
0 to which an upper communication function is added. That is, the book
The roadside device 20 in the mode has a higher-level communication function and
Application update Application switching, image data
The data can be easily updated. This
Therefore, the roadside device 20 according to the present embodiment includes a communication line 43,
And a modem 44 connected thereto.
Upper communication station received via modem 43 and modem 44
Data from the CPU (not shown)
And performs a predetermined process to update the display content of the electronic display 22.
And send the updated data to the onboard
Put out. As a result, the electronic display 22 and the roadside device 20 side
The updated data is displayed on the display 37 of the on-board unit 25
Is done. Here, as the upper communication station,
Traffic information centers and police stations are conceivable. In FIG.
Parts corresponding to the respective functional blocks in FIG.
Therefore, duplicate description will be omitted. By the way, onboard equipment 25
The configuration is exactly the same as in FIG. Also, in this embodiment,
The position communication function corresponds to the first and second embodiments shown in FIGS.
Of course, it can also be added to the embodiment. According to this embodiment, the data in the application
Since it has a data update function, it
You can update the gold table. It is also possible to change the content of the advertisement.
You. In addition, display if the application is a road sign
It is possible to change the contents and the contents transmitted to the on-board unit 25.
You. Specifically, the following data can be updated. Prohibition of entry, one-way traffic etc. according to time, season, congestion degree
Change. In this case, the change is simultaneously transmitted to the on-vehicle device 25.
Further reasons can also be sent. Speed limit, rain sensor, temperature sensor, humidity sensor
Change the speed limit in combination to update the display contents.
At this time, the driver will be provided with detailed data
In both cases, driving guidance may be provided. <Fifth Embodiment> The upper communication function is shown in FIG.
Using wireless communication in the fourth embodiment shown in FIG.
This can also be realized. This is referred to as the fifth embodiment.
FIG. As shown in FIG.
The side device 20 transmits radio waves transmitted from the upper communication station,
It is taken into the wireless modem 46 via the antenna 45,
After a predetermined process is performed by the line modem 46, it is supplied to the CPU 21.
I do. The subsequent processing is the same as that of the fourth embodiment shown in FIG.
It is exactly the same. The upper communication function in this embodiment
Are added to the first and second embodiments shown in FIGS. 2 and 3.
Of course, it can be added. <Sixth Embodiment> FIG. 7 shows a sixth embodiment.
Block showing a traffic data display and processing system
FIG. As shown in FIG.
The data storage is stored in the on-vehicle device 25 in the fourth embodiment.
Page 47 is added. That is, the vehicle-mounted device 25
After receiving and demodulating in the
I will load it into the data storage 47 under the control of U36
Swelling. Thus, the data storage 47
When the driver operates the keypad 38, the data
By doing so, it is possible to arbitrarily display on the display 37.
Wear. Note that, in FIG. 7, each of the functional blocks in FIG.
Portions are assigned the same reference numerals, and duplicate description is omitted. Ma
In addition, the data storage 47 in the present embodiment is configured as shown in FIGS.
It can be added to the first to fourth embodiments shown in FIG.
Of course you can. According to this embodiment, the contents of the display are overlooked visually.
However, it is displayed on the display 37 of the vehicle-mounted device 25 later, and the
You can check the contents. <Seventh Embodiment> FIG. 8 shows a seventh embodiment.
Block showing a traffic data display and processing system
FIG. As shown in FIG.
The voice notification function is provided to the vehicle-mounted device 25 according to the sixth embodiment.
Is added. Sand
That is, after being received and demodulated by the on-board unit 25, the packet is decomposed.
Of the data from the speaker 48 under the control of the CPU 36.
It is becoming. In FIG. 8, each function of FIG.
Parts corresponding to blocks are assigned the same numbers and duplicated
Description is omitted. Further, the speaker 48 in the present embodiment
Are added to the first to fifth embodiments shown in FIGS.
Of course, it can be added. According to the present embodiment, the voice guidance
The received data can be notified to the driver. <Eighth Embodiment> FIG. 9 shows an eighth embodiment.
Block showing a traffic data display and processing system
FIG. As shown in FIG.
In the seventh embodiment, a vehicle control
The interface 49 is added. This vehicle control
The interface 49 is connected to a vehicle control unit (not shown) of the vehicle.
Not. ), And the roadside device 20 sends out the
The vehicle control data received by the
Operation of each part of the vehicle via the vehicle control unit based on the data
Functions as an interface for controlling For example,
Interface between the engine control unit and brake control unit of the vehicle
It becomes a chair, and the vehicle
Control. Also, if the application is a road sign
In the case of
Can be Furthermore, according to rainfall, snowfall, outside temperature
Speed control, automatic horn sounding at horn permitted places, etc.
Can also be controlled. When the application is a traffic light
Brake control according to the signal condition,
It is also possible to control the idling stop, etc.
You. Note that, in FIG. 9, units corresponding to the respective functional blocks in FIG.
The same numbers are assigned to the minutes, and duplicate descriptions are omitted. Ma
The vehicle control interface 49 according to the present embodiment includes:
In addition to the first to sixth embodiments shown in FIGS.
Of course you can. According to this embodiment, the roadside device 20 is connected to the vehicle-mounted device.
Controls the parts of the vehicle on which the
Can contribute to the line. <Ninth Embodiment> FIG. 10 shows a ninth embodiment.
Showing a traffic data display and processing system according to the embodiment
FIG. As shown in FIG.
The roadside device 20 according to the eighth embodiment shown in FIG.
20a and an antenna unit 20b.
It was made. The display unit 20a is an antenna unit 20b
Are connected by an extension cable 50. Therefore, the table
The display unit 20a has a line driver 51 as its output unit.
And the antenna unit 20b is connected to the
Having an in-receiver 52, these line drivers
Extension cable 50 between 51 and line receiver 52
It is supposed to connect. The display unit 20a is at least
It is a portion including the electronic display 22, and the antenna portion 20b is
This is a portion including at least the transmission antenna 23. Hide
The electronic display 22 (for example, an electronic traffic light)
Even when the installation location is limited, such as at a corner,
An arbitrary position is selected for the installation position of the tenor 23 as necessary.
Can be Electronic display 22 and transmission antenna 23
Other components other than the display unit 20a and the antenna
They are distributed and arranged in any of the sections 20b. In FIG.
Shows only the number of each block. In addition, the vehicle-mounted device 25
Is exactly the same as that of the eighth embodiment shown in FIG.
Therefore, the same parts are assigned the same numbers, and duplicate descriptions are omitted.
Abbreviate. The roadside device 20 and the on-vehicle device 25 are first to
Any one of the seventh embodiment may be used. According to this embodiment, the roadside device 20 uses the electronic
The distance between the display 22 and the transmitting antenna 23 is physically
The electronic display 2 can be separated from the driver of the vehicle because it can be released.
2 is not visible from the transmitting antenna 23
If the received radio wave 24 can be received by the receiving antenna 30, the vehicle
Necessary data can be obtained from the display 37 of the mounting machine 25.
Wear. Therefore, for example, in a large vehicle ahead, the electronic display 2
Even if you cannot see the traffic light that is No. 2,
The displayed signal data is displayed on the in-vehicle device 25 to inform the driver.
be able to. <Tenth Embodiment> FIG. 11 shows a tenth embodiment.
1 shows a traffic data display and processing system according to an embodiment.
It is a block diagram. As shown in FIG.
10 shows the transmission of the roadside device 20 according to the ninth embodiment.
The antenna 23 is divided into a plurality of divided antennas 23a,
3b and 23c. Each of these separate antennas
23 a to 23 c are display units 20 c including the electronic display 22.
And extension cables 53a, 53b, 53c respectively
Have been. Here, the display unit 20c is shown in FIGS.
Any one of the roadside devices 2 shown in the first to eighth embodiments.
0 transmitting antenna 23 and separating antennas 23a to 23a to
The signal replaced by 23c and modulated by mixer 27 is separated
Corresponds to the number of antennas 23a to 23c (three in this embodiment)
So that they can be sent out in parallel.
May be. Transmitted from each of the separation antennas 23a to 23c.
Radio waves 24a, 24b and 24c contain data of the same content.
In-vehicle devices 25a, 25b, 25
c, and display of each in-vehicle device 25a, 25b, 25c
The contents of the electronic display 22 are displayed on the display 37.
Each of the in-vehicle units 25a to 25c is any one of the first to eighth units.
May be. According to the present embodiment, the separation antennas 23a to 23a-2
Traffic light, crossing around by combining multiple 3c
There can be no blind spots on the sides. That is,
Necessary data even in locations where the visibility of Unit No. is poor
Can be reliably notified to the driver. <Eleventh Embodiment> FIG.
1 shows a traffic data display and processing system according to an embodiment.
It is a block diagram. As shown in FIG.
A reflector 54 is provided near the side device 20 to reflect the radio wave 24
Data to be transmitted to the vehicle-mounted device 25
It is. In this case, as the roadside device 20 and the vehicle-mounted device 25
Are all the roadside devices 20 shown in the first to eighth embodiments.
And the vehicle-mounted device 25 can be used. According to this embodiment, the reflection plate 54 is positioned at an appropriate position.
Between the roadside device 20 and the vehicle-mounted device 25
Wireless communication blind spots can be prevented. <Twelfth Embodiment> FIG.
1 shows a traffic data display and processing system according to an embodiment.
It is a block diagram. As shown in FIG.
The transmission antenna 23 of the side device 20 leaks the cable antenna
It is formed by. Where the leaky cable antenna
Shall be installed at an appropriate length along the road. In addition,
The length of the bull antenna takes into account the range of radio waves 24
And then decide. In addition, the leaking cable antenna
Even if it is formed by a leakage tube (slot tube) having the same function
Of course it is good. In this case, the roadside device 20 (the transmitting antenna 23)
except for. ) And the first to eighth embodiments as the vehicle-mounted device 25.
Uses all roadside equipment 20 and on-vehicle equipment 25
can do. According to the present embodiment, a plurality of vehicle-mounted devices 25
Can be transmitted simultaneously. That is, nothing
Line communication area can be set freely. <Thirteenth Embodiment> FIG. 14 shows a thirteenth embodiment.
1 shows a traffic data display and processing system according to an embodiment.
It is a block diagram. As shown in FIG.
A plurality of vehicles 55a and 55b traveling in a rearward direction
It is configured to enable communication between the on-board
The radio wave 2 received from the roadside device 20 by the in-vehicle device 25a of 5a
4a is transmitted to the on-vehicle device 2 of the following vehicle 55b.
It can be transmitted. That is, the vehicle 55
a and 55b are the on-board units 2a together with the on-board units 25a and 25b.
Data received by 5a, 25b is transmitted as radio wave 24b
Transmitters 56a and 56b. In this case
The first device is used as the roadside device 20 and the vehicle-mounted devices 25a and 25b.
All roadside devices 20 and on-vehicle devices shown in the eighth embodiment
Machine 25 can be used. According to this embodiment, a plurality of vehicles 56a, 56
b, the same data transmitted by the roadside device 20 is transmitted simultaneously.
Can be At this time, a reflector, multiple antennas or
Does not require roadside equipment such as leaky cables. In the above embodiment, the beads
One end of the roadside equipment 20
When data is communicated, it can cause unnecessary confusion.
The communication area A can be changed from one vehicle to the next
Avoid this by configuring the transmitter to reach the vehicle.
Can be. The size of the communication area A is 6 in the next vehicle direction.
m, width within 1 m. Therefore, the vehicle-to-vehicle communication
Can be selected. In addition, the subsequent
The ability to communicate with the vehicle
If the driving data is acquired, the automatic
Forward control and the like are also possible. <Fourteenth Embodiment> FIG. 15 shows a fourteenth embodiment.
1 shows a traffic data display and processing system according to an embodiment.
It is a block diagram. As shown in FIG.
In the eighth embodiment shown in FIG.
Not only from the on-board unit 25 but also from the
It is made to be able to. That is, roadside equipment
That enable bidirectional communication between the vehicle 20 and the vehicle-mounted device 25
It is. In the present embodiment, the transmission system in the roadside device 20
And the receiving system in the on-board unit 25 are exactly the same as in FIG.
Therefore, the same parts are assigned the same numbers and duplicate descriptions are given.
Are omitted, and the transmission system and the roadside device 2 in the vehicle-mounted device 25 are omitted.
The description will focus on the reception system at 0. As shown in FIG. 15, in this embodiment,
The roadside device 20 according to the eighth embodiment shown in FIG.
Packet generator 26 and packet decomposer 35 of in-vehicle device 25
Is provided with packet generator / decomposers 57 and 58 instead of
In both cases, the transmission system is provided on the vehicle-mounted device 25 side, and the roadside device 20 is provided.
Are provided with receiving systems. Ie car
The transmission system on the mounting machine 25 side is a CPU 36,
Decomposer 58, mixer 59, oscillator 60, transmission amplifier 61
And a transmitting antenna 62. Here, the CPU 36
The formed data is packetized by the packet generator / decomposer 58.
It is generated as data and supplied to the mixer 59. Next,
Packet data is modulated by the carrier wave oscillated by the oscillator 60
The radio wave 6 is transmitted through the transmission amplifier 61 and the transmission antenna 62.
8 and is transmitted to the roadside device 20. Meanwhile, the roadside machine
The receiving system on the side of the device 20 includes a receiving antenna 63 and a receiving amplifier.
64, mixer 65, oscillator 66, filter 67, packet
And the CPU 21. here,
The radio wave 68 received via the receiving antenna 63
The signal is supplied to a mixer 65 via a pump 64. This mixer 6
In 5, the in-vehicle device based on the reference signal oscillated by the oscillator 66
25 demodulates a predetermined packet transmitted by the
7 to the packet generator / decomposer 57. this
The packet generator / decomposer 57 extracts the
The CPU 21 transmits predetermined display data together with the packet data.
To supply. CPU 21 is transmitted from vehicle-mounted device 25 side
The display content of the electronic display 22 is changed based on the data.
It should be noted that a transmission system in which the roadside device 20 is on the transmission side and an onboard device
The configuration of the receiving system in which the receiving side is 25 is the eighth system shown in FIG.
There is no difference from the above embodiment. Also this place
The transmission system in the roadside device 20 and the onboard device 25
Receiving system is limited to that of the eighth embodiment shown in FIG.
do not have to. All roadside devices 20 shown in first to seventh
And the vehicle-mounted device 25. According to this embodiment, the roadside device 20 is connected to the vehicle-mounted device.
25, as well as transmission of data to
Transmission of data to the roadside device 20 is also possible,
Change the contents of the electronic display 22 of the roadside device 20 from the side 5
It is also possible to do. Therefore, for example, emergency vehicles
For example, the traffic light which is the child display 22 is preferentially changed to blue.
Operation becomes possible. In addition, oncoming vehicles in places with poor visibility
The content of the electronic display 22 of the roadside device 20 is changed to
It is also possible to inform the data. The wireless communication system in each of the above embodiments and
For example, when applied to the ETC system described above,
DSRC (Dedica) using 5.8 GHz radio waves
ted Short Range Communica
) method can be suitably applied. The present invention has been described in detail with the embodiments.
As described above, the invention described in [Claim 1] is based on electronic means.
Electronic display means configured to change the display content.
Road signs, traffic lights or roadside equipment such as warning boards
Contents to be displayed on the electronic display means with line communication function
Data transmitted by radio waves,
The in-vehicle device, which is a line receiver, receives and processes the above radio waves.
Displays the contents of the electronic display on the display means of the on-board unit.
The table on the electronic display means on the roadside equipment side
The displayed content can be displayed on the display means of the vehicle-mounted device. This
As a result, the driver visually recognizes the contents displayed on the display
By doing so, necessary data can be confirmed. The invention described in [Claim 2] is based on [Claim 2
In the traffic data display and processing system described in 1)
In this case, the roadside device has a plurality of electronic display
Displaying the display contents of the display means on the display means of the vehicle-mounted device
As a result, the roadside device
Display and display the contents of multiple applications
Can be sent to As a result, in-vehicle devices can
Has the effect of being able to process and display
You. The invention described in [Claim 3] is based on [Claim 3
[1] or traffic data display / processing according to [Claim 2]
In the system, roadside equipment has a data compression function,
The onboard unit is configured to have this data decompression function
So, map information, store by data compression and data expansion
Compress large amounts of image data such as menus, fees, etc.
Can be sent. As a result, in a limited wireless communication area,
Even if a large amount of data can be transmitted at high speed
This has the effect. The invention described in [Claim 4] is based on [Claim 4
[1] Any one of the traffic days described in [Claim 3]
In the data display and processing system, the roadside device
Can communicate with stations via communication lines or wirelessly
As well as from the upper communication station.
Table by electronic display means in roadside equipment based on data
Control contents of the roadside device, such as
So that it can be
It will have a data update function, and will be able to
-You can update the price list. Also, changes in advertising content
It is possible. In addition, if the application is a road sign
If this is the case, the display content and the content transmitted to the onboard
Will be possible. As a result, flexibility in weather conditions, road characteristics, etc.
Can present the optimal data corresponding to the driver to the driver
This has the effect. The invention described in [Claim 5] is based on [Claim 5]
[1] Any one of the traffic days described in [Claim 4]
In the data display and processing system, the onboard
Data storage means for storing data sent from
Data stored in this data storage means.
So that the data can be displayed later on the display means.
So that you can overlook the contents of the display on the display
Later, display it on the display of the in-vehicle device to check its contents.
This has the effect of being able to The invention described in [Claim 6] is based on [Claim 6
[1] Any one of the traffic days described in [Claim 5]
In the data display and processing system, the onboard
Audio conversion means for converting the data transmitted from the
The driver must confirm the display contents on the electronic display means of the roadside device.
Can also be confirmed by voice. As a result,
Dancing can contribute to safe driving of vehicles. The invention described in [Claim 7] is based on [Claim 7]
Any one of the traffic data described in [1] to [Claim 6]
In the data display and processing system, the onboard
The vehicle control unit is controlled based on the data transmitted from
Vehicle control interface for controlling various parts of the vehicle
Roadside equipment, so that vehicles equipped with
Each part can be controlled as needed, which allows
It can contribute to safe driving. The invention described in [Claim 8] is based on [Claim 8]
Any one of the traffic data described in [1] to [7]
In roadside display and processing systems, roadside devices are displayed electronically.
The display unit including the means and the antenna unit including the transmission antenna
Divide the line driver into the display and the antenna
Has a built-in line receiver and
Connect the driver and line receiver with an extension cable.
The distance between the electronic display means and the transmitting antenna
Can be physically separated from each other,
Even if the contents of the electronic display are not visible from
The radio wave transmitted from the antenna is received by the receiving antenna and
If the data can be received, the necessary
Data can be obtained. As a result, for example,
When the traffic light, which is the electronic display means, is not visible
Also displays the signal data sent wirelessly on the in-vehicle device and operates
The effect of being able to notify the person is achieved. The invention described in [Claim 9] is based on [Claim 9]
1) to any one of the traffic data described in [8]
Data display and processing system,
Formed with multiple transmitting antennas and send data to multiple onboard units
Is transmitted, so that the
Be sure to avoid blind spots around traffic lights and railroad crossings.
it can. As a result, in locations where traffic signals, etc.
If necessary, it is necessary to notify the driver of necessary data without fail.
it can. The invention described in [Claim 10] is based on [Claim 10]
Any one of the traffic data described in [1] to [9]
In the data display and processing system, the transmission
Radio waves transmitted by roadside equipment with a reflector installed near the tena
Can be reflected by this reflector and received by the onboard equipment.
The reflector is provided at an appropriate position.
Blind spot of wireless communication between roadside equipment and onboard equipment
There can be no. The invention described in [Claim 11] is based on [Claim
Any one of the traffic data described in [1] to [9]
In the data display and processing system, the transmission
Because the tena was formed with a leaky cable or a leaky tube,
The same data can be transmitted simultaneously to the on-vehicle device.
As a result, the wireless communication area can be set freely.
To play. The invention described in [Claim 12]
Any one of the traffics described in [1] to [11]
In the data display / processing system, the transmission function to the on-board unit
To enable communication between in-vehicle devices.
Data received from the roadside equipment received by the leading vehicle.
Data to be transmitted sequentially to the vehicles behind it.
Data transmitted by roadside equipment to multiple vehicles
can do. At this time, reflectors, multiple antennas
Or, roadside facilities such as leaky cables are not required. this
As a result, it is said that roadside equipment costs can be kept low.
It works. The invention described in [Claim 13] is based on [Claim
The traffic data display and processing system described in [12]
Data is transmitted from one on-board unit to the next on-board unit only.
Configuration to prevent interference with others.
Can be The invention described in [Claim 14]
Any one of the traffic described in [1] to [13]
In a data display and processing system, wireless data
Data transmission function and wireless data reception function for roadside equipment.
Are added, and bidirectional communication between the roadside device and the onboard
Communication from the on-board unit to the roadside device.
Display contents of display means can be changed.
Therefore, all data transmission from roadside equipment to onboard equipment
Data transmission from in-vehicle equipment to roadside equipment.
You. As a result, the electronic display means of the roadside device is switched from the onboard device side.
It is also possible to change the content, for example, emergency vehicles
Operations such as changing the traffic light, which is the
Work is possible. Also, make sure that you
Change the contents of the electronic display means of the
It will also be possible to inform.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram conceptually showing the overall embodiments of the present invention. FIG. 2 is a block diagram showing a first embodiment of the present invention. FIG. 3 is a block diagram showing a second embodiment of the present invention. FIG. 4 is a block diagram showing a third embodiment of the present invention. FIG. 5 is a block diagram showing a fourth embodiment of the present invention. FIG. 6 is a block diagram showing a fifth embodiment of the present invention. FIG. 7 is a block diagram showing a sixth embodiment of the present invention. FIG. 8 is a block diagram showing a seventh embodiment of the present invention. FIG. 9 is a block diagram showing an eighth embodiment of the present invention. FIG. 10 is a block diagram showing a ninth embodiment of the present invention. FIG. 11 is a block diagram showing a tenth embodiment of the present invention. FIG. 12 is a block diagram showing an eleventh embodiment of the present invention. FIG. 13 is a block diagram showing a twelfth embodiment of the present invention. FIG. 14 is a block diagram showing a thirteenth embodiment of the present invention. FIG. 15 is a block diagram showing a fourteenth embodiment of the present invention. [Description of Signs] 20 Roadside device 22 Electronic display 23 Transmission antenna 24 Radio wave 25 In-vehicle device 37 Display 39 Application processing unit 40 Application processing unit 41 Data compression unit 42 Data expansion unit 43 Communication line 45 Antenna 46 Wireless modem 47 Data storage 48 Speaker 49 Vehicle control interface 50 Extension cable 51 Line driver 52 Line receiver 54 Reflector 56a, 56b Transmitter

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) H04B 1/16 H04B 1/16 C 5/00 5/00 Z 7/26 7/26 H (72) Invention Person Keiichi Morishita 2-1-1 Shinhama, Arai-machi, Takasago City, Hyogo Prefecture Inside the Takasago Research Laboratory, Mitsubishi Heavy Industries, Ltd. In-plant F-term (reference) 5H180 AA01 CC12 EE10 FF13 FF25 FF32 JJ28 LL01 LL02 LL07 LL08 LL09 LL15 5K012 AB05 AC07 AC10 BA00 5K061 AA03 BB12 CC08 CC11 CC14 DD12 DD14 FF02 JJ06 JJ07 JJ24 BB21 BB24 BB07 BB24 BB

Claims (1)

Claims 1. A roadside device such as a road sign, a traffic light or a warning / advertising board, which is an electronic display means configured to change display contents by electronic means, has a wireless communication function. While the data of the content to be displayed on the electronic display means is transmitted by radio waves, the in-vehicle device, which is a wireless receiver mounted on the vehicle, receives and processes the radio waves to display the electronic display device on the display means of the in-vehicle device. A traffic data display / processing system characterized by displaying contents. 2. The traffic data display and processing system according to claim 1, wherein the roadside device has a plurality of electronic display means, and the display content of each electronic display means is displayed on the display means on the vehicle-mounted device. A traffic data display and processing system characterized by the following. 3. The traffic data display and processing system according to claim 1 or 2, wherein the roadside device has a data compression function, and the on-vehicle device has a data expansion function. A traffic data display / processing system characterized by the following. 4. The traffic data display / processing system according to any one of claims 1 to 3, wherein the roadside device is capable of performing communication with a higher-level communication station via a communication line or wirelessly. A traffic data display / processing system, wherein the control content of the roadside device, such as the display content of the roadside device on the electronic display means, can be changed based on data from the upper communication station. . 5. The traffic data display / processing system according to any one of claims 1 to 4, wherein the on-vehicle device has a data storage means for storing data transmitted from the roadside device. A traffic data display / processing system characterized in that the data stored in the data storage means can be displayed later on the display means. 6. The traffic data display / processing system according to any one of claims 1 to 5, wherein the on-vehicle device converts the data transmitted from the roadside device into a voice. A traffic data display / processing system comprising: 7. The traffic data display / processing system according to any one of claims 1 to 6, wherein the on-vehicle device controls the vehicle control unit based on data transmitted from the roadside device. A traffic data display and processing system having a vehicle control interface for controlling each part of the vehicle. 8. The traffic data display / processing system according to any one of claims 1 to 7, wherein the roadside device includes a display unit including an electronic display unit and an antenna unit including a transmission antenna. The display unit incorporates a line driver, the antenna unit incorporates a line receiver, and the line driver and the line receiver are connected by an extension cable to reduce the distance between the electronic display means and the transmitting antenna. A traffic data display / processing system characterized in that it can be physically separated. 9. The traffic data display / processing system according to any one of claims 1 to 8, wherein the antenna of the roadside device is formed by a plurality of transmitting antennas,
A traffic data display / processing system characterized in that data is transmitted to a plurality of vehicle-mounted devices. 10. The traffic data display / processing system according to any one of claims 1 to 9, wherein a reflector is disposed near a transmission antenna of the roadside device, and the roadside device transmits the data. A traffic data display and processing system, wherein the radio wave is reflected by the reflector and received by an on-vehicle device. 11. The traffic data display / processing system according to any one of claims 1 to 9, wherein the transmitting antenna of the roadside device is formed by a leak cable or a leak pipe. Traffic data display and processing system. 12. The traffic data display / processing system according to any one of claims 1 to 11, wherein a transmission function is added to the on-vehicle device so that the on-vehicle device can communicate with each other. Traffic data display, characterized in that the data from the roadside device received by the leading vehicle is sequentially transmitted wirelessly to the following vehicle.
Processing system. 13. A traffic data display / processing system according to claim 12, wherein data is transmitted from one vehicle-mounted device to only the next vehicle-mounted device. Processing system. 14. The traffic data display / processing system according to any one of claims 1 to 13, wherein the on-vehicle device has a wireless data transmitting function, and the roadside device has a wireless data receiving function. Each of which is configured to enable two-way communication between the roadside device and the vehicle-mounted device, so that the display content of the electronic display means of the roadside device can be changed from the vehicle-mounted device side. Traffic data display and processing system.