JPH0816848A - Inter-road vehicle information transmitting method, inter-road vehicle communication system and on-vehicle communication equipment - Google Patents

Abstract

PURPOSE:To transfer information with a simple operation without enlarging a device when the transfer of information by means of communication between an on-vehicle machine and a road machine is difficult by writing information to be transferred into a card in either an on-vehicle communication equipment or the road machine and reading information from the card by the other when radio communication is defective. CONSTITUTION:When radio communication is defective, information to be transferred is written into the IC card 62 by either the on-vehicle machine 30 or the road machine, and information concerned is read from the IC card 62 by the other. Namely, a communication fail is stored in a storage circuit, and a processing number is given to stored on-vehicle information so as to write it into the IC card 62. Then, the processing number is stored in the storage circuit. When the IC card 62 is taken out, an incorporated timer starts and the IC card 62 is inserted again. When the processing number of the IC card 62 which is inserted being in time-out is matched with the stored processing number and a command written in the read machine exists, a command processing following the command written into the IC card 62 is executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a road-vehicle information transmission method,
The present invention relates to a road-to-vehicle communication system and an in-vehicle communication device, and particularly to a road-to-vehicle information transmission method and a road-to-vehicle communication system for exchanging information for fee collection and the like between a vehicle and a roadside device that manages information for the vehicle. And an in-vehicle communication device.

[0002]

2. Description of the Related Art A vehicle traveling on a toll road is charged according to its vehicle type and the distance traveled on the toll road. In order to automatically collect charges at the entrance gate and exit gate of this toll road, a communication device having an antenna for transmitting and receiving radio waves to the road side as an interrogator for inquiring information about the vehicle (hereinafter, A communication device (hereinafter referred to as an on-vehicle device) having an antenna as a responder for replying to inquired information is provided on the vehicle, and the on-vehicle device and the on-road device are disposed. There is a road-vehicle communication system for wirelessly exchanging information with the vehicle.

However, even if information is stored in the vehicle-mounted device due to maintenance of the roadside device, insufficient power of the vehicle-mounted battery, malfunction of the antenna, etc., there are cases where the information cannot be transmitted and received by communication. As described above, when it is impossible to read the information stored in the vehicle-mounted device, there is a mobile body identification device as a road-vehicle communication system in which a connector is directly connected to the vehicle-mounted device to read the information ( Kaihei 5-10
(See Japanese Patent No. 0018).

[0004]

However, in the conventional road-to-vehicle communication system, the vehicle-mounted device must be provided with a connector for exchanging information, so that the vehicle-mounted device becomes large in size. Further, when it is difficult to exchange information by communication, in order to exchange information between the vehicle-mounted device and the roadside device, it is complicated to connect a roadside connector for communicating with the roadside device to the connector of the vehicle-mounted device. Therefore, the occupant of the vehicle or the operator on the roadside must be excessively burdened.

In consideration of the above facts, the present invention is directed to a case where it is difficult to exchange information between an on-vehicle device and a road device by communication.
An object of the present invention is to obtain a road-vehicle information transmission method, a road-vehicle communication system, and a vehicle-mounted communication device that can exchange information by a simple operation without increasing the size of the device.

[0006]

In order to achieve the above object, the invention according to claim 1 uses radio wave communication between a roadside device installed on a road and a vehicle-mounted communication device mounted on a vehicle. A road-to-vehicle information transmission method in a road-to-vehicle communication system for exchanging information, wherein when the radio wave communication is defective, one of the in-vehicle communication device and the on-road machine transmits information to be exchanged by the radio wave communication. It is characterized in that the information is written on a card for recording the information and the information is read from the card on the other hand.

According to a second aspect of the present invention, there is provided an on-road communication device installed on a road, and a vehicle-mounted communication device equipped with a card insertion portion for receiving a card for recording information so that the card can be inserted and removed. A vehicle-to-vehicle communication system for exchanging information by radio wave communication between vehicles, and storage means for storing in-vehicle device information related to the vehicle, and exchanging the in-vehicle device information between the card and the storage means. Transfer means to
Is provided in the vehicle-mounted communication device, and reads out the vehicle-mounted device information from the card, the roadside device information based on the read vehicle-mounted device information and a recording and reproducing means for writing to the card to the roadside device The feature is that it is provided.

According to a third aspect of the present invention, in the road-to-vehicle communication system according to the second aspect, there is further provided detection means for detecting a communication failure of the radio wave communication when the vehicle passes through a gate, and the vehicle-mounted device is installed. The communication means of the communication device writes the in-vehicle device information to the card in response to the detected communication failure.

According to a fourth aspect of the present invention, in the road-vehicle communication system according to the second or third aspect, the on-vehicle device information is read from the card and the fee collection process is performed based on the read on-vehicle device information. Fee collection processing means to
It is characterized in that the recording / reproducing means comprises at least an information writing means for writing on-card the roadside device information corresponding to the completion of the toll collection processing to the card.

According to a fifth aspect of the present invention, in the road-vehicle communication system according to the fourth aspect, the transfer means reads the roadside machine information written in the card and the storage means according to the read roadside machine information. It is characterized in that the on-vehicle device information stored in is changed.

According to a sixth aspect of the present invention, in the road-vehicle communication system according to any one of the second to fifth aspects, the on-vehicle device information includes entrance information indicating an entrance gate and a vehicle type of the vehicle. It is characterized in that it is composed of vehicle type information.

According to a seventh aspect of the present invention, in the road-vehicle communication system according to the second aspect, there is further provided entrance detecting means for detecting a communication failure of the radio communication when the vehicle passes through an entrance gate. The recording / reproducing means writes entrance information indicating an entrance gate into the card based on the read in-vehicle device information, and the transfer means reads out the entrance information from the card and transfers it to the storage means. There is.

The invention according to claim 8 is used in a road-vehicle communication system for exchanging information by radio wave communication between a vehicle and a roadside device installed on the road, and a card for recording the information is inserted and removed. An in-vehicle communication device equipped with a card insertion section that is capable of being received and mounted in the vehicle, the storage means for storing in-vehicle device information related to the vehicle, and information for writing the in-vehicle device information in the card. And a writing unit.

[0014]

According to the road-to-vehicle information transmitting method of the invention described in claim 1, road-to-vehicle communication for transmitting and receiving information by radio wave communication between a roadside device installed on the road and a vehicle-mounted communication device mounted on the vehicle. Used in the system. If the radio communication between the roadside device and the onboard communication device is poor, write the information to be transmitted / received by the radiowave communication to the card on one of the onboard communication device and the roadside device, and write the information on the other side. Read from the card. This card is for recording information. Therefore, even if the radio wave communication between the on-road unit and the on-vehicle communication device is poor, it is possible to write the information to the card on one of the on-vehicle communication device and the on-road device and read the information on the other.

In the road-to-vehicle communication system of the present invention, a roadside device installed on the road and a vehicle-mounted communication device equipped with a card insertion portion for receiving a card for recording information so that the card can be inserted and removed are mounted on the vehicle. Information is exchanged between them by radio communication. In this vehicle-mounted communication device, a storage unit for storing vehicle-mounted device information related to the vehicle, a transfer unit for transferring at least the vehicle-mounted device information between the card and the storage unit,
Is provided. Therefore, the vehicle-mounted communication device can write the vehicle-mounted device information in the card and read the vehicle-mounted device information from the card. On the roadside device, the in-vehicle device information is read from the card by the recording / reproducing means,
The on-vehicle device information based on the read in-vehicle device information and the on-vehicle device information are written in the card. Therefore, it is possible to write the vehicle-mounted device information in the card and read the vehicle-mounted device information from the card in the roadside machine. by this,
Even when radio communication cannot be performed between the roadside device and the vehicle-mounted communication device due to communication failure, etc., the on-vehicle device information related to the vehicle and the roadside device information based on the on-vehicle device information are exchanged using the card as a medium. You can

As described in claim 6, the in-vehicle device information includes entrance information indicating the entrance gate and vehicle type information indicating the vehicle type of the vehicle. If the entrance information and the vehicle type information are used as the vehicle-mounted device information, when the toll is calculated, the chargeable amount can be obtained from the table corresponding to the route and the vehicle type. Further, the roadside device information includes charge information such as balance information of charge collection results. The roadside device information may include a code representing a charge deduction command in the vehicle-mounted communication device when the charge is collected in the vehicle-mounted communication device.

In the above road-vehicle communication system, the third aspect
As described above, the road-vehicle communication system further includes detection means for detecting a communication failure of radio communication when the vehicle passes through the gate, and the transfer means of the vehicle-mounted communication device copes with the detected communication failure. Then, the in-vehicle device information can be written in the card. In this way, the information to be transmitted / received by the radio communication at the gate where the communication failure has occurred is based on the vehicle-mounted device information provided by the card,
Can be written on the road machine.

Further, the recording / reproducing means of the on-road device is defined in claim 4.
As described above, the toll collection processing means that reads out the in-vehicle device information from the card and performs the toll collection process based on the read in-vehicle device information, and at least the roadside device information and the in-vehicle device corresponding to the completion of the toll collection process. You may comprise from the information writing means which writes information in a card. With this configuration, it is possible to collect the toll of the parking fee of the parking lot or the toll of the toll road on the roadside device. When the toll collection process is completed, the card indicates at least the toll collection process completion. It contains roadside device information such as commands. Therefore, by reading the roadside device information including the command from the card, it is possible to recognize that the toll collection process is completed even in the vehicle-mounted communication device.

When the toll collection process for a toll road or the like is performed using the vehicle-mounted device information recorded on the card, the vehicle-mounted device information immediately before the card is removed from the vehicle-mounted communication device, that is, stored in the storage means. The on-vehicle device information that is present may be different from the on-vehicle device information that is written to the card when the fee collection process is completed. That is, when the toll collection process is completed, the roadside device does not need information such as its entrance information and route information in the next toll collection process, and therefore deletes it from the vehicle-mounted device information. On the other hand, this information is stored in the vehicle-mounted device information stored in the storage means. Therefore, as described in claim 5, the transfer means of the in-vehicle communication device reads the on-road machine information written in the card and sets the on-vehicle machine information stored in the storage means in accordance with the read on-road machine information as an initial value. It is preferable to change it by resetting it back to. By doing so, when the toll collection process is completed, the in-vehicle device information in the in-vehicle communication device matches the in-vehicle device information written in the chaos. Therefore, in the vehicle-mounted communication device when the vehicle leaves the toll road, the vehicle-mounted device information does not include information such as entrance information and route information.

At entrance gates of major roads, there are cases where tolls are collected and cases where the entrance to a toll road is simply notified. When simply informing the position of entering the toll road, the vehicle-mounted communication device may hold the entrance information indicating the entrance gate. In this case, as described in claim 7, the vehicle further comprises entrance detecting means for detecting a communication failure of the radio communication when the vehicle passes through the entrance gate, and the roadside machine is based on the read in-vehicle machine information. It is preferable to write entrance information indicating the entrance gate to the card so that the vehicle-mounted communication device reads the entrance information from the card. In this way, the entrance information can be surely written in the in-vehicle communication device at the entrance gate.

The on-vehicle communication device of the invention described in claim 8 is used for a road-vehicle communication system for exchanging information by radio wave communication between a vehicle and a roadside device installed on the road.
This on-vehicle communication device is equipped with a card insertion portion that accepts a card for recording information so that the card can be inserted and removed, and is mounted on a vehicle. The storage means of the vehicle-mounted communication device stores vehicle-mounted device information related to the vehicle. The information writing means is
Write in-vehicle device information on the card. As a result, the vehicle equipped with the vehicle-mounted communication device can surely write the vehicle-mounted device information in the card even when the radio communication failure occurs between the roadside device and the vehicle-mounted communication device. .

[0022]

Embodiments of the present invention will be described below in detail with reference to the drawings. In the present embodiment, the present invention is applied to an automatic billing system that automatically bills a vehicle traveling on a toll road or the like. The automatic charging system according to the present embodiment is an on-vehicle device (details will be described later) as a vehicle communication device mounted on a vehicle and a road device having a flat antenna installed on the ground side such as an entrance gate and an exit gate. It is a system for determining a traffic section (route) in which a vehicle has traveled and a vehicle type by performing radio wave communication with the vehicle and paying a toll or the like without stopping the vehicle at an entrance gate and an exit gate.

As shown in FIG. 2, the vehicle-mounted device 30 mounted on the vehicle 90 serves as an information writing means to which an IC card 62 capable of storing vehicle-mounted device information including charge balance information and the like can be attached and detached, as described later. The IC card read / write device 60 is provided (see FIG. 1). As an example of the IC card 62, a memory card such as an LSI card, a magnetic card, a hologram card for optically recording / reproducing, or a magneto-optical card for magneto-optically recording / reproducing can be used. The in-vehicle device information includes an ID code including a vehicle number, vehicle type information indicating a vehicle type of a vehicle in which the in-vehicle device 30 is installed, gate information indicating an entrance gate and an intermediate route and the order thereof, and an IC card. It is composed of usage history information indicating the number of times of attachment / detachment of 62, the charging processing history and the like. The vehicle-mounted device 30 includes a storage circuit 48 (see FIG. 1, details will be described later) as a storage unit that stores fixed data such as an ID code including a vehicle number and vehicle type information, and is mounted by an IC card read / write device 60. Refer to the charge balance information of the IC card 62
The charge balance information is written in the C card 62.

On the other hand, as will be described later, the on-road device has at least a flat antenna for exchanging various information with the vehicle-mounted device 30 at each of the entrance gate 100, the intermediate route 200 and the exit gate 300 of the toll road. Has been done.

An entrance antenna 117 composed of a flat antenna is arranged at the entrance gate 100, and an entrance antenna control device 132 is connected to the entrance antenna 117. The entrance antenna control device 132 transmits / receives entrance gate information of the toll road to / from the vehicle-mounted device 30 mounted on the vehicle via the entrance antenna 117. The entrance gate 100 is provided with a pass ticket issuing device 123 for issuing a pass ticket for a vehicle that cannot be automatically billed by paying the pass fee by hand. This pass ticket issuing device 123
Although will be described in detail later, has a function as a recovery gate for writing entrance information indicating the entrance gate to the IC card 62 when radio wave communication is poor. An IC card read / write device 61A as a recording / reproducing means to / from which the IC card 62 can be detachably attached
IC card read / write device 61A
Are connected to a central computer 400. Further, the entrance antenna control device 132 is provided with a central computer 40 in order to comprehensively manage vehicles approaching the toll road.
It is possible to connect to 0.

A route grasping antenna 217 composed of a flat antenna is arranged on the way route 200, and a route grasping antenna control device 232 is connected to the route grasping antenna 217. This route grasping antenna control device 232
Thus, via the route grasping antenna 217, route passage information indicating what route the toll road has traveled is transmitted to and received from the vehicle-mounted device 30 mounted on the vehicle. Further, the route grasping antenna control device 232 can be connected to the central computer 400 in order to comprehensively manage the running state of the vehicle on the toll road. It should be noted that if the radio wave communication is poor on the intermediate route 200, the IC card 62
A recovery gate 224 for writing route information representing a route on the way is provided. The recovery gate 224 is provided with an IC card read / write device 61B to which the IC card 62 is attachable / detachable, and the IC card read / write device 61B is connected to the central computer 400. The recovery gate 224 may be provided in a parking area or a service area.

As the entrance information and the route information, a code such as a number assigned in advance corresponding to the position of the toll road can be used.

At the exit gate 300, a notice antenna 317 made up of a flat antenna and a tollgate antenna 341 are arranged in order to improve the certainty of information exchange by radio waves. A notice antenna control device 331 is connected to the notice antenna 317, and a toll gate antenna control device 332 is connected to the toll gate antenna 341. Further, the notice antenna control device 331 and the tollgate antenna control device 332 are connected to a local controller 380 connectable to the central computer 400. This local controller 332 includes a microcomputer, and the advance notice antenna control device 331.
Also, a processing program for controlling the tollgate antenna control device 332 and the like is stored. It should be noted that although the notice antenna 317, the tollgate antenna 341, the notice antenna control device 331, and the tollgate antenna control device 332 act as the road device of the present invention, the notice antenna 317 and the notice antenna control device 331 are omitted. You can also

Further, the exit gate 300 is connected to a vehicle type detection system 360 for discriminating the type of vehicle by image processing or the like, and a camera 352 for photographing an illegally passing vehicle such as a vehicle passing without paying a toll. ,
Fee payment system 323 for vehicles that cannot be automatically charged
Is provided. By collectively controlling each of these systems with the local controller 380, it is possible to take appropriate measures against inability to charge, etc., and automatically calculate the toll charge according to the traffic section (route) in which the vehicle has traveled and the vehicle type. Is collected at. In addition, the central computer 4
By connecting 00 and the local controller 380, it is possible to smoothly and swiftly exchange the information about the change in the fare table and the information about the illegal traffic.

Next, an example of the schematic structure of each of the entrance gate, the intermediate path, and the exit gate will be further described.

As shown in FIG. 3, the entrance gate 100 of the toll road of this embodiment has three lanes 102, 104, 1
Has 06. Lane 102 is formed between site 108 and separator 110, lane 104 is formed between separator 110 and separator 112, and lane 106 is separator 1.
It is formed between 12 and the site 114. An arch 116 is provided from the site 108 to the site 114 so as to straddle these plural lanes, and an entrance antenna 117 is provided on the arch 116. The entrance antenna 117 is the entrance antenna 118, 120, 122.
The entrance antenna 118 is in charge of transmission / reception of radio waves to / from a vehicle traveling in the lane 102.
It is located above 2. Similarly, the entrance antenna 120
Is in charge of transmission and reception of radio waves to and from vehicles traveling on the lane 104, and is located above the lane 104. The entrance antenna 122 is in charge of transmitting and receiving radio waves to and from the vehicle traveling in the lane 106, and is located above the lane 106.

On the site 114, the entrance antenna control device 1
An entrance gate control center 130 including 32 is arranged, and entrance antennas 118, 120, 122 are connected to the entrance antenna control device 132.

Although the entrance antennas 118, 120 and 122 are used as the entrance antenna 117 in FIG. 3, one or two entrance antennas may be used with one or two lanes, and a larger number of entrance antennas may be used. May be used.

At the entrance gate 100, a pass ticket issuing device 123 for issuing a pass ticket for a vehicle that cannot be automatically billed by paying a pass fee by hand is arranged, and the pass ticket issuing device 123 corresponds to each lane. Passage ticket issuing device 12
It is composed of 4, 126 and 128. The pass ticket issuing device 124 corresponds to the lane 102, and is arranged on the downstream side of the separation band 110 in the vehicle traveling direction and on the lane 102 side of the separation band 110. Further, the pass ticket issuing device 126 is arranged on the downstream side in the vehicle traveling direction of the separation band 112 corresponding to the lane 104 and on the lane 104 side of the separation band 112, and the pass ticket issuing device 128 corresponds to the lane 106 and the site 114. Is arranged on the lane 106 side of the site 114 on the downstream side in the vehicle traveling direction. These pass issuing devices 124, 1
26 and 128 are connected to the entrance gate control center 130.

Signals 134, 136, 138 for instructing whether or not to enter each lane are provided on the downstream side of the arch 116 in the traveling direction of the vehicle so as to correspond to each lane. These traffic lights 134, 136, 138 are connected to the entrance gate control center 130 and indicate when a vehicle can enter each lane (for example, a green light).
Alternatively, one of the displays (for example, a red traffic light) when the entry is impossible is displayed.

The entrance gate control center 130 is connected to the central computer 400 (see FIG. 2). The entrance gate control center 130 may not be connected to the central computer 400, but may be an independent control system using only the entrance gate.

As shown in FIG. 4, the midway route 200 immediately before or after the branch point of the toll road has two lanes 202, 2
04 are adjacent to each other, and adjacent lanes 202 and 204 are formed between the site 208 and the site 214. An arch 216 is arranged from the site 208 to the site 214 so as to straddle these lanes 202 and 204.
A path grasping antenna 217 is arranged on the arch 216. The route grasping antenna 217 is composed of route grasping antennas 218, 220, 222. The route grasping antenna 218 is in charge of transmitting and receiving radio waves to and from a vehicle traveling in the lane 202, and is located above the lane 202. The route grasping antenna 222 is in charge of transmission and reception of radio waves to and from the vehicle traveling in the lane 204, and is located above the lane 204. These route grasping antennas 218,
Above the center line 206 near the middle of 222 and above the boundary between the lanes 202 and 204, the lane 202,
A path grasping antenna 220 that is in charge of transmission and reception of radio waves to and from a vehicle that extends over 204 is provided.

A route control center 230 having a route grasping antenna control device 232 is disposed on the site 214, and route grasping antennas 218, 220, 222 are connected to the route grasping antenna control device 232. .

As shown in FIG. 5, the toll road exit gate 300 has three lanes 302, 304, 306. The lane 302 is formed between the site 308 and the separator 310, and the lane 304 is the separator 310 and the separator 31.
2, the lane 306 is formed between the separation zone 312 and the site 314.

An arch 316 is provided from the site 308 to the site 314 so as to straddle these plural lanes, and a notice antenna 317 is provided on the arch 316. The notification antenna 317 is composed of notification antennas 318, 320, and 322. The notification antenna 318 is in charge of transmitting and receiving radio waves to and from the vehicle traveling in the lane 302, and is located above the lane 302. The notification antenna 320 is in charge of transmission and reception of radio waves to and from the vehicle traveling in the lane 304, and is located above the lane 304. Similarly, the warning antenna 322 is used by the lane 306.
Responsible for transmitting and receiving radio waves to the vehicle traveling on
It is located above 06.

An exit gate control center 330 is provided on the site 314, and a notice antenna control device 331 and a tollgate antenna control device 332 to be described later are provided at the exit gate control center 330. The notice antenna control device 331 includes notice antennas 318 and 32.
0 and 322 are connected.

A vehicle type detection system 360 is provided near the arch 316. This vehicle type detection system 3
Reference numeral 60 is composed of vehicle type detection devices 362, 364, 366, each of which is a CCD line scanner. The vehicle type detection device 362 is a device for identifying the vehicle type of the vehicle traveling on the lane 302, and is arranged on the site 308 and the separation zone 310 corresponding to the lane 302. Similarly, the vehicle type detection device 364 is a device for identifying the vehicle type of the vehicle traveling in the lane 304, and the separation band 310 and the separation band 3 corresponding to the lane 304 near the arch 316.
The vehicle type detection device 366 is installed in the lane 306.
It is a device for identifying the vehicle type of a vehicle traveling on the road, and is arranged on the separation belt 312 and the site 314 corresponding to the lane 306. The vehicle type detection system 360 including these vehicle type detection devices is connected to the local controller 380, and determines the vehicle type by determining the silhouette of the passing vehicle by image processing based on the image obtained by the CCD line scanner, thereby determining the vehicle type information. The local controller 38
Send to 0.

An arch 340 is provided from the site 308 to the site 314 on the downstream side of the position where the arch 316 is arranged in the vehicle traveling direction so as to straddle the plurality of lanes. A tollgate antenna 341 is arranged on the 340. This tollgate antenna 341 is composed of tollgate antennas 342, 344, 346,
The tollgate antenna 342 is in charge of transmitting and receiving radio waves of information related to a fee for a vehicle traveling in the lane 302, and is located above the lane 302. Tollgate antenna 34
Reference numeral 4 is in charge of transmission / reception of radio waves to / from a vehicle traveling on the lane 304, and is located above the lane 304. Similarly, the tollgate antenna 346 is in charge of transmitting and receiving radio waves to and from the vehicle traveling on the lane 306, and is located above the lane 306. These tollgate antennas 342, 34
A tollgate antenna control device 332 is connected to the terminals 4, 346.

At the exit gate 300, a toll payment system 3 for vehicles that cannot automatically charge a toll
23, the toll payment system 323 has toll payment boxes 324, 326, 328 corresponding to each lane.
It is configured to include. The fee payment box 324 is
Corresponding to the lane 302, it is arranged on the downstream side of the separation belt 310 in the vehicle traveling direction and on the lane 302 side of the separation belt 310. In addition, the charge payment box 326 is in the lane 304.
The charge payment box 328 corresponds to the lane 306 and is located downstream of the separation belt 312 in the vehicle traveling direction and on the lane 304 side of the separation belt 312. It is arranged on the 306 side. These fee payment boxes 324, 326,
A microcomputer (not shown) is provided in each 328, and a fee payment system 323 that manages information charged by hand payment by integrally managing each microcomputer (not shown) is configured. This fee payment system 323 is based on the local controller 3
80 (see FIG. 2).

The charge payment system 323, which will be described in detail later, also has a function as a recovery gate for collecting charges from the IC card 62 when radio wave communication is poor. In each of the fee payment boxes 324, 326, 328 of the fee payment system 323, an IC card read / write device 61C as a recording / reproducing means to / from which the IC card 62 is attachable / detachable is arranged. Are connected to a central computer 400. The fee payment system 323 including the IC card read / write device 61C constitutes recording / reproducing means including a fee collection processing means and an information writing means.

Further, an unauthorized vehicle photographing system 350 for photographing an illegally passing vehicle is arranged on the downstream side of the toll payment box in the traveling direction of the vehicle (see FIG. 2). Camera 352, which is
354 and 356 are arranged corresponding to the lanes 302, 304 and 306. This unauthorized vehicle photography system 35
0 is connected to the local controller 380.

Signals 334, 336, 338 for instructing whether to enter each lane are arranged downstream of the arch 340 in the vehicle traveling direction so as to correspond to each lane. These traffic lights 334, 336, 338 are connected to the exit gate control center 330, and indicate when a vehicle can enter each lane (for example, a green light) or when the vehicle cannot enter each lane (for example, a red traffic light). ) Is displayed.

The exit gate control center 330 is connected to the central computer 400 (see FIG. 2). The exit gate control center 330 may not be connected to the central computer 400, but may be an independent control system using only the exit gate.

Next, the on-vehicle device 30 and the on-road device that communicates with the on-vehicle device 30 will be described by taking the on-road device provided at the entrance gate 100 as an example. In addition, in order to simplify the explanation,
Entrance antenna 118 and entrance antenna control device 13 which are in charge of transmission and reception of radio waves to and from vehicles traveling on the lane 102
2 is used for the explanation.

As shown in FIG. 1, the vehicle-mounted device 30 has a receiving antenna 32 for receiving a data signal transmitted from a road-side device which will be described later. The reception antenna 32 is connected to a detection circuit 34 that detects the modulated wave received by the reception antenna 32 and obtains a data signal. The detection circuit 34 is connected to the transmission circuit 50 so that the carrier wave of the radio wave transmitted from the roadside device can be obtained. The detection circuit 34 is connected via a data signal reception circuit 44 to a signal processing circuit 46 as a transmission / reception means that includes a microcomputer. A processing program described below is stored in the microcomputer included in the signal processing circuit 46.

The signal processing circuit 46 is connected to a storage circuit 48 for storing data such as an ID code and vehicle type information, and a transmission circuit 50 for transmitting a data signal including the ID code as a response signal. Is connected to the transmitting antenna 52. Therefore, the carrier wave obtained by detecting the modulated wave received by the receiving antenna 32 is used as the signal processing circuit 4
After being modulated with the data signal from 6, the signal is returned via the transmitting antenna 52. In addition, the transmission antenna 52 is caused to function as a transmission / reception antenna, and the transmission circuit 50 receives the unmodulated carrier wave transmitted from the roadside device by the transmission antenna 52 and outputs the unmodulated carrier wave from the signal processing circuit 46. The signal may be modulated and then returned via the transmitting antenna 52.

The memory circuit 48 stores fixed data such as an ID code including a vehicle number and vehicle type information indicating the vehicle type of the vehicle in which the vehicle-mounted device 30 is installed, and communication state information indicating the communication state of radio wave communication. It is a circuit for storing in-vehicle device information including gate information indicating an entrance gate and an intermediate route and the order thereof, and usage history information indicating the number of times the IC card 62 is attached / detached, a billing history, and the like.

The signal processing circuit 46 is an input means for inputting a signal such as a selection signal to the display 54 composed of an LCD or a CRT for displaying the insertion / non-insertion of an IC card, a balance, etc. and the signal processing circuit 46. The numeric keypad 56 is connected. In addition, the signal processing circuit 46 includes an IC card 6
2 is connected to an IC card read / write device 60 that is removable.

It should be noted that the vehicle-mounted device 30 is constantly supplied with power from the vehicle-mounted battery BT (not shown) when the ignition is turned on, via the power source compensation circuit 58 as a detecting means. The power supply compensating circuit 58 is connected to the signal processing circuit 46, and it is preliminarily determined that it may be difficult for the electric power supplied from the vehicle-mounted battery (not shown) to normally perform radio wave communication in the vehicle-mounted device 30. When it is less than the predetermined value, the signal is output to the signal processing circuit 46.

As shown in FIG. 6, the road vehicle for the vehicle traveling in the lane 102 is composed of an entrance antenna 118 and an entrance antenna control device 132. The entrance antenna 118 includes the transmission antenna 22 and the reception antenna 26.
It consists of The entrance antenna controller 132
A signal processing circuit 12 including a microcomputer is provided. A processing program described below is stored in the microcomputer included in the signal processing circuit 12. Further, the signal processing circuit 12 is
It can be connected to the central computer 400. The signal processing circuit 12 is connected to a transmission circuit 14 that generates a data signal (communication request signal) including an instruction. The transmission circuit 14 is connected to the transmission antenna 22 via the mixer 18. A carrier generation circuit 20 that generates a carrier of a predetermined frequency is connected to the mixer 18. The mixer 18 mixes a signal input from the transmission circuit 14 and a carrier input from the carrier generation circuit 20, and the transmission circuit 14 The carrier wave input from the carrier wave generation circuit 20 is modulated by the signal input from. Further, the modulated wave is transmitted as a radio wave from the transmitting antenna 22.

The carrier wave generating circuit 20 is connected to a receiving circuit 24 for extracting a data signal from the modulated wave which is modulated and returned from the vehicle-mounted device 30 shown in FIG. 1 and received by the receiving antenna 26. The receiving circuit 24 is the signal processing circuit 12.
It is connected to the. Further, the receiving circuit 24 is connected to the carrier wave generating circuit 20, and the carrier wave transmitted for comparison of the carrier waves included in the signal returned from the vehicle-mounted device 30 is input.

The structure of the other entrance antennas at the entrance gate 100 is the same as that described above, and the description thereof is omitted. In addition, the intermediate route 200 and the exit gate 3
The configurations of the antennas and the antenna control device in No. 00 are substantially the same as those described above, and thus the description thereof will be omitted.

Further, in the above-described vehicle-mounted device and on-road device, the antenna configured by separating the transmitting antenna and the receiving antenna is used, but a single antenna for integral transmission and reception may be used as a flat antenna.

Next, a basic processing routine in each of the vehicle-mounted device and the road device of this embodiment will be described. The roadside machine installed at the entrance gate transmits an inquiry signal composed of a continuous wave in step 600 until the response signal from the vehicle-mounted device is received as shown in FIG. 8, and the response signal from the vehicle-mounted device is transmitted in step 602. If it is determined that the message has been received, step 6
At 04, a signal including the entrance gate number and the like is transmitted. A roadside machine installed on the midway route 200 transmits a signal including a midway route code indicating the midway route in step 604, although the process is substantially the same as the above process.

At the exit gate 300, there are a roadside device including a notice antenna 317 and a notice antenna control device 331, and a roadside device including a tollgate antenna 341 and a tollgate antenna control device 332. The roadside device DA (see FIG. 2) including the advance notice antenna 317 and the advance notice antenna control device 331 is substantially similar to the above processing, and in step 604, a signal including the exit code indicating the exit gate 300 is transmitted. Tollgate antenna 341
And the roadside device DB consisting of the tollgate antenna control device 332.
Then, in step 604, a signal including the exit code representing the exit gate 300 is transmitted, and charging processing is performed by radio communication.

FIG. 7 shows a processing routine of the vehicle-mounted device. When it is judged in step 500 that the inquiry signal from the roadside device is received, the own vehicle is specified by using the inquiry signal received in step 502 as a carrier wave. A modulated wave obtained by modulating a carrier wave with an ID code that is an identification code is transmitted as a response signal.

When it is determined in step 504 that the signal from the roadside machine is received, it is determined in step 506 whether the received signal includes the entrance gate number, so that the vehicle is currently passing through the entrance gate. Determine whether or not When the vehicle has not passed through the entrance gate, proceed to Step 508, and when the vehicle has passed through the entrance gate,
In step 510, entrance gate processing is performed. The entrance gate process of this step 510 is the step 506.
In this process, the entrance information based on the entrance gate number included in the signal received at is stored in the storage circuit 48 of the vehicle-mounted device 30. In step 508, it is determined whether the signal received in step 506 includes a midway route code to determine whether or not the midway route 200 is passed. If the midway route 200 is passed, step 512 is performed. On the way to the way 200
If it does not pass through the exit gate, it is judged that the exit gate has been passed and the exit gate processing is performed in step 514. The intermediate route process of step 512 is performed in step 506.
In this process, the intermediate route information based on the intermediate route code included in the received signal is stored in the storage circuit 48 of the vehicle-mounted device 30. The exit gate process in step 514 uses the vehicle type information stored in the in-vehicle device, the balance information using the information stored in the IC card mounted in the in-vehicle device, and the charge table previously recorded in the in-vehicle device. On the basis of,
This is a process of calculating and receiving a charge from the current balance to the entrance gate, the intermediate route and the exit gate.

Next, the processing including countermeasures against radio wave communication failure in this embodiment will be further described with reference to the processing routines of the vehicle-mounted device and the road device. When radio communication failure occurs, the information to be transmitted / received by the radio communication includes entrance information indicating an entrance gate when entering a toll road, route information indicating an intermediate route of the toll road, balance information, etc. There is fare information or exit information indicating the exit gate. Also,
This information includes fee information such as fees to be paid at entrances and exits of parking lots and toll roads.

FIG. 9 shows an interrupt processing routine in the vehicle-mounted device, which is executed at predetermined time intervals during the processing routine of FIG. In step 520,
Whether or not a communication error has occurred is determined by determining whether or not it is detected that communication processing cannot be continued between the vehicle-mounted device and the road device (hereinafter, referred to as communication failure). If a communication error has occurred, the process proceeds to step 524. If no communication error has occurred, step 5
By determining whether or not a predetermined key of the ten-key pad 56 has been pressed at 22, the I stored in the storage circuit 48 is determined.
It is determined whether or not the output of data such as the D code and vehicle type information (vehicle-mounted device information) is requested. If requested, the process proceeds to step 524. If not requested, the interrupt routine ends.

The above-mentioned communication failure is caused by at least one of the on-vehicle device and the on-road device, and there are transmission defects and reception defects as seen from the state of radio communication.

When the vehicle-mounted device 30 has a poor transmission, the vehicle-mounted device 30 is abnormal due to an internal circuit defect, a defective antenna, or the electric power of the vehicle-mounted battery is insufficient. Cannot be received, and when the roadside device cannot receive a radio signal from the vehicle-mounted device 30 that operates normally and the roadside device is abnormal.

On the other hand, the same applies when the on-vehicle device 30 has a poor reception, and when the on-vehicle device 30 cannot receive the radio signal transmitted by the on-vehicle device 30 which is abnormal and operates normally. There is a case where the on-vehicle device 30 cannot receive the radio signal from the on-road device because the radio device is abnormal and a normal radio signal is not transmitted.

Therefore, if a detection circuit such as a compensation circuit and a power shortage determination circuit is provided in advance in the vehicle-mounted device 30, the abnormality of the vehicle-mounted device 30 can be detected by the detection circuit.
A communication failure when the vehicle-mounted device 30 is abnormal can be detected. In this embodiment, the power supply compensation circuit 58 can be used as this detection circuit. If it is expected that a communication failure will occur due to power shortage, a code corresponding to the power shortage will be transmitted to the roadside device as communication status information and a normal or abnormal communication failure determination signal will be received from the roadside device. If so, step 52 above.
At 0, the communication failure can be detected by the presence or absence of the communication failure determination signal.

On the other hand, when there is an abnormality on the roadside device, it is not possible to notify that a communication failure has occurred only by radio wave communication. Therefore, the communication failure is notified to the occupant of the vehicle on the ground side by a display device such as a display. You should take measures to guide the vehicle to the recovery gate. The detection of the communication failure in this case is negatively determined in step 520, but an affirmative determination is made in step 522 when the predetermined key of the ten-key pad 56 is pressed by the occupant, and the process proceeds to step 524. Upon completion of step 520, a code indicating communication failure is stored in the storage circuit 48 as communication state information.

In step 524, the processing number is added to the vehicle-mounted device information stored in the storage circuit 48 and the IC card 62 is processed.
And the assigned processing number is stored in the storage circuit 48. The in-vehicle device information written in the IC card 62 includes communication status information by a code indicating communication failure. The processing number is a sequence of predetermined digits (for example, 4 digits), and is incremented each time the vehicle-mounted device information is written to the IC card 62. That is, "0001" is written at the first writing and "0" at the next writing.
It is also represented by a serial number such as “002”, and by referring to this processing number, the history of the written in-vehicle device information can also be referred to. Therefore, by referring to the vehicle-mounted device information of the maximum processing number, the previously written vehicle-mounted device information is not used. Note that if this processing number is stored as a code encrypted according to a predetermined rule to prevent fraud, etc., the validity of the stored vehicle-mounted device information can be determined between the vehicle-mounted device and the roadside device. can do.

At the next step 526, the IC card 62
When the IC card 62 is removed, the timer 45 is started in the next step 528, and the process proceeds to step 530. The timer 45 is provided for the IC card 62 for the processing of the roadside device (see FIG. 10) described later.
It is for measuring the passage of time while removing. The timer 45 may be configured by a built-in timer (not shown) in the microcomputer. Next step 5
30 repeatedly executes until the IC card 62 is reinserted, and when it is reinserted, it judges whether or not the time measured by the timer 45 exceeds the predetermined time in the next step 532. Determine if it is timed out. In the case of a time-out, it is determined that the IC card is not inserted after the processing on the roadside device, and in step 540, the processing number written on the IC card, the command to be written on the roadside device, and the in-vehicle device information are displayed. After erasing, in step 542, the display of the completion of processing by attaching / detaching the IC card to the passenger is displayed 54.
This routine is ended by notifying by displaying the end on. The notification of the end of this process may be given by a beep sound generated by a sound emitting device such as a buzzer or a speaker.

If the IC card is reinserted and the timeout has not occurred, it is determined in the next step 534 whether the processing number of the inserted IC card 62 and the processing number stored in the storage circuit 48 match. If they match, it is determined in step 536 whether or not there is a command written by the roadside machine. This step 536
Determines whether or not there is a gate information write command or the like, which will be described later, at the entrance gate 100 and the intermediate route 200, and determines whether or not there is a reset command, which will be described later, at the exit gate 300. If the processing numbers match and there is a command, command processing according to the command written in the IC card 62 is performed in step 538, and then the process proceeds to step 540. This step 538 is for entrance gate 1
00 and the intermediate route 200 are processes for writing the gate information written in the IC card 62 in the memory circuit 48 of the vehicle-mounted device 30, and the exit gate 300 is a reset process for resetting the vehicle-mounted device information held in the memory circuit. If the process numbers do not match or if there is no gate information write command, the process proceeds to step 540, the information is erased in the same manner as described above, and then the display 54 is terminated and the present routine is terminated.

FIG. 10 shows a processing routine in the recovery gate of the roadside device installed in the entrance gate 100 or the intermediate route 200 (process A), and the IC card 6
When No. 2 is loaded, the in-vehicle device information assigned with the process number is read in step 620. Next Step 622
Then, it is determined whether or not there is the ID code and the processing number included in the read vehicle-mounted device information. If the ID code and the processing number are present, the process proceeds to step 626. If the ID code and the process number are none, the entrance certificate indicating the entrance gate 100 or the intermediate route 20 in step 624.
The route certificate indicating 0 is issued, and the vehicle-mounted device information to which the processing number is written in the IC card 62 in the next step 630 and the command to be written in the roadside device are erased, and this routine is ended.

In step 626, it is determined whether the communication status information of the vehicle-mounted device information is a code indicating a communication failure or not, and if it is a negative determination, the process proceeds to step 630 and communication is performed. In the case of failure, in step 628, the IC card 6 receives the gate information indicating the entrance gate 100 or the intermediate route 200 and a command for storing the gate information in the vehicle-mounted device 30.
After writing to 2, the present routine is ended.

Therefore, when a communication failure occurs,
Gate information is written to the IC card 62 taken out of the vehicle-mounted device 30 on the roadside device, and a command for writing the gate information to the vehicle-mounted device is also written. Therefore, when the IC card is inserted into the vehicle-mounted device 30 again, the gate information is stored in the storage circuit 48 according to the command.
And the processing number, vehicle-mounted device information and command are erased from the IC card 62 after this storage.

FIG. 11 is a roadside recovery gate installed at the exit gate 300 (charge payment system 323).
When the IC card 62 is loaded, the in-vehicle unit information assigned with the process number is read in step 650. In the next step 652, it is determined whether or not the ID code and the processing number included in the read vehicle-mounted device information are present. If the ID code and the processing number are present, the process proceeds to step 654, and if they are not present. , Go to step 656.

In step 654, charge adjustment processing is performed based on the read in-vehicle device information. That is, the traveling section of the vehicle is calculated by referring to the entrance information and the route information, and the charge to be charged is calculated based on the vehicle type information and the calculated traveling section. In this case, it is preferable that a charge table is stored in advance on the roadside machine. The calculated charge is subtracted from the charge balance read as the balance information to calculate the charge balance by charge adjustment. When the calculation of the charge balance is completed, the calculated charge balance is written in the IC card 62 as balance information, and step 658 is performed.
Go to.

In step 654, when a negative charge is calculated from the charge balance, it is preferable to inform the passenger of the negative charge as an insufficient amount. In this case, payment may be made in cash or further IC card may be provided. When the further IC card is provided, the process of step 654 sets the balance information of the IC card 62 for which the negative charge has been calculated above to “0”, and
The charge balance of the provided balance information of the IC card may be added to the calculated negative charge.

At step 656, charge processing at the time of error is performed. That is, since the read in-vehicle device information does not include the ID code and the processing number, it may be possible to present an IC card different from the IC card 62 used when the in-vehicle device malfunctions or the toll road is running. To be Therefore, the issued entrance certificate and route certificate (step 62
In step 4), the travel section is calculated based on these certificates, and cash is requested or permission is given to the passenger to withdraw from the IC card. When the fee collection is completed, the process proceeds to step 658.

At the next step 658, the IC card 62
Command to be executed on the in-vehicle device (Reset command:
The in-vehicle device information stored in the storage circuit 48 is returned to the initial state, that is, a command for returning to the state in which the entrance information and the path information immediately before passing through the entrance gate are not stored is written, and this routine is ended.

As described above, in this embodiment, when the communication failure occurs, the in-vehicle device information is written in the detachable IC card in the in-vehicle device. Therefore, the radio communication between the roadside device and the in-vehicle device is performed. Even if it is impossible, the in-vehicle device information to be transmitted / received by radio communication can be transmitted / received by using the IC card as a medium.

Further, even if a communication failure occurs within the section of the automatic billing system of this embodiment, the in-vehicle device information is written in the IC card at the time when this communication failure is detected. When the radio communication between the roadside device and the on-vehicle device becomes impossible, the on-vehicle device information to be exchanged by the radio communication can be switched to be exchanged using the IC card as a medium. Further, even if there is a communication failure in a section, the in-vehicle device information can be transmitted and received by the IC card only in that portion, so that the automatic charging system as a whole can smoothly exchange the in-vehicle device information by radio wave communication. it can.

Further, in the in-vehicle apparatus, since the processing number is given when the in-vehicle apparatus information is written, the in-vehicle apparatus information in the IC card is not accessed by referring to this processing number.

Further, since the in-vehicle device monitors the time after the IC card is removed, it is determined whether or not the predetermined processing time of the on-road device has passed.
It is easy to determine whether or not the IC card is removed for the processing of the roadside equipment at the gate. Even if a passenger having a plurality of IC cards mistakenly inserts another IC card, since the processing number and the command to be written on the roadside device are referred to, the other device can be used. The written in-vehicle device information and the in-vehicle device information written in other states are not used by mistake.

Further, in the in-vehicle device, the processing for the memory circuit and the processing for the IC card can be performed in accordance with the command written in the IC card by the on-road device.
It is possible to cause the C card to hold processing such as commands to be transmitted by radio communication. For example, when the toll collection process is completed, the in-vehicle device can be reliably reset by the reset command, so that the in-vehicle device is automatically prepared without performing new processing when entering the next automatic billing system. Has been done.

Since the in-vehicle device information includes an ID code including a vehicle number and the like, there is a one-to-one correspondence between the IC card in which the in-vehicle device information is written and the in-vehicle device (vehicle) for the IC card. By confirming the vehicle-mounted device information including this ID code, even when the vehicle-mounted device is used in the vehicle-mounted device of another vehicle, it is possible to easily deal with it by avoiding the use or avoiding a warning.

Further, on the roadside machine, it is possible to determine whether or not the onboard machine information is correctly written by the onboard machine by checking the ID code and the processing number. It can be issued without fail, and an accurate charge settlement process can be performed even for a vehicle occupant who owns an IC card that does not hold entrance information or route information at the exit gate.

In the above embodiment, the case where the present invention is applied to the automatic toll road billing system has been described. However, the present invention is not limited to this, and a billing system for a parking lot or a guidance system. It can be applied to a communication system in which unmanned operation is demanded and functions effectively. That is, in the case of a communication system in which a fee is collected at a parking lot where a plurality of vehicles are parked, there are vehicles with different parking times and vehicle types as payable vehicles around the gate for paying the fee. I have something to do. In addition, there may be vehicles that are not equipped with in-vehicle devices.

When the present invention is applied to a communication system or the like in such a parking lot, the entry time may be included in the vehicle-mounted device information as parking information to exchange the information with the roadside device. Further, not only the application to the communication system on the premise of toll collection but also the route guidance and the notification of information to the vehicle can be easily applied.

Although the embodiments of the present invention have been described above, the embodiments of the present invention have various technical aspects as described below in addition to the requirements described in the claims.

Timer means (corresponding to timer 45) for measuring the time when the card is removed from the in-vehicle communication device
And a determination means for determining whether or not the measurement time has passed a predetermined time, the transfer means is the vehicle-mounted device written in the card when the measurement time is within the predetermined time. The road-vehicle communication system according to claim 2, wherein information is transmitted to and received from the storage means.

The transmission / reception means of the vehicle-mounted communication device writes the vehicle-mounted device information to which a processing number is given in correspondence with the detected communication failure, in the card.
The vehicle-to-vehicle communication system according to item 1.

The road-vehicle communication system according to claim 6, wherein the vehicle-mounted device information further includes balance information and communication state information.

[0094]

As described above, according to the road-to-vehicle information transmitting method of the present invention, even if the radio communication between the road unit and the vehicle-mounted communication device is poor, the information is transmitted to the vehicle-mounted communication device. Also, since it is possible to write to the card and read from the other one of the roadside devices, there is an effect that information can be transmitted and received through the card without depending on radio communication.

According to the road-to-vehicle communication system of the invention described in claim 2, the in-vehicle communication device transfers the in-vehicle device information stored in the storage means to and from the card by the transfer means, and the recording and reproduction is performed in the road device. Since the on-vehicle device information and the on-vehicle device information based on the on-vehicle device information read from the card by the means are written in the card, even when radio communication cannot be performed between the road device and the in-vehicle communication device, There is an effect that a card can be exchanged as a medium.

According to the third aspect of the present invention, the in-vehicle device information can be written in the card in response to the communication failure of the radio wave communication detected by the detection means. Therefore, the information to be transmitted / received at the time when the communication failure occurs. The effect is that you can write to a card.

In the invention described in claim 4, the fee collection processing means performs the fee collection processing based on the vehicle-mounted machine information read from the card, and the information writing means writes the roadside machine information and the vehicle-mounted machine information to the card. Therefore, there is an effect that the on-vehicle communication device can recognize that the toll collection process on the roadside device is completed.

According to the fifth aspect of the invention, the on-vehicle device information stored in the storage means is changed in accordance with the on-road device information read by the on-off device of the on-vehicle communication device. The communication device becomes in-vehicle device information that does not include information such as entrance information, and is effective in preparing for the next fee collection process.

In the invention described in claim 6, since the in-vehicle device information includes the entrance information and the vehicle type information indicating the vehicle type of the vehicle, when calculating the toll, a table or the like corresponding to the route and the vehicle type is used. There is an effect that a charge such as a chargeable amount can be obtained.

According to the invention described in claim 7, the entrance indicating the entrance gate on the card is based on the vehicle-mounted device information written in correspondence with the communication failure of the radio wave communication when the entrance gate is detected, which is detected by the entrance detecting means. Since the information is written, there is an effect that the entrance information can be surely written in the vehicle-mounted communication device at the entrance gate.

In the vehicle-mounted communication device of the present invention as defined in claim 8, since the vehicle-mounted device information relating to the vehicle can be stored in the storage means and the vehicle-mounted device information can be written in the card by the information writing means, the roadside device can be used. Even if a radio wave communication failure occurs between the vehicle-mounted communication device and the vehicle-mounted communication device, the vehicle-mounted device information can be surely written in the card.

[Brief description of drawings]

FIG. 1 is a block diagram showing an in-vehicle device of an embodiment to which the present invention is applicable.

FIG. 2 is a block diagram showing an automatic billing system to which the present invention can be applied.

3 is a schematic perspective view showing an entrance gate of the automatic charging system of FIG. 2. FIG.

FIG. 4 is a schematic perspective view showing an intermediate route of the automatic charging system in FIG.

5 is a schematic perspective view showing an exit gate of the automatic charging system of FIG.

FIG. 6 is a block diagram showing an example of a roadside machine.

FIG. 7 is a flowchart showing a flow of basic processing of the vehicle-mounted device.

FIG. 8 is a flowchart showing a flow of basic processing of a roadside machine.

FIG. 9 is a flowchart showing a flow of interrupt processing of the vehicle-mounted device.

FIG. 10 is a flowchart showing a processing flow of an entrance gate and a recovery gate of an intermediate path.

FIG. 11 is a flowchart showing a processing flow of a recovery gate of an exit gate.

[Explanation of symbols]

 30 vehicle-mounted device (vehicle communication device) 46 signal processing circuit (sending / receiving means) 48 storage circuit (storage means) 50 transmission circuit 58 power supply compensation circuit (detection means) 60 IC card read / write device (information writing means) 61A IC card Read / write device (recording / reproducing device) 61B IC card read / write device (recording / reproducing device) 61C IC card read / write device (recording / reproducing device)

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Claims (8)

[Claims] 1. A road-vehicle information transmission method in a road-vehicle communication system for transmitting and receiving information by radio communication between a roadside device installed on a road and a vehicle-mounted communication device mounted on a vehicle, comprising: If the communication is bad, write the information to be transmitted and received by the radio communication to a card for recording the information in any one of the vehicle-mounted communication device and the roadside device,
On the other hand, a road-to-vehicle information transmission method characterized by reading the information from the card. 2. Information is transmitted by radio wave communication between a roadside device installed on the road and a vehicle-mounted communication device equipped with a card insertion portion that accepts a card for recording information in a removable manner. A road-vehicle communication system for transmitting and receiving, wherein storage means for storing in-vehicle device information related to the vehicle, and transfer means for transmitting and receiving the in-vehicle device information between the card and the storage means are provided. Provided in the on-vehicle communication device, the on-vehicle device information is read from the card, and the road-side device information based on the read in-vehicle device information and the recording / reproducing means for writing the on-vehicle device information to the card are provided on the road-side device. A road-vehicle communication system characterized by the following. 3. A detection means for detecting a communication failure of the radio wave communication when the vehicle passes through a gate, the transfer means of the vehicle-mounted communication device corresponding to the detected communication failure, the vehicle-mounted device. The road-vehicle communication system according to claim 2, wherein information is written on the card. 4. A toll collection processing means for reading the on-board device information from the card and performing toll collection processing based on the read on-board device information; and a road on which at least the toll collection process is completed by completion of the toll collection process. 4. The road-vehicle communication system according to claim 2, wherein the recording / reproducing means comprises an information writing means for writing machine information to the card. 5. The transfer means reads the roadside machine information written in the card and changes the onboard machine information stored in the storage means according to the read roadside machine information. 4. The road-vehicle communication system according to item 4. 6. The road-to-vehicle communication according to claim 2, wherein the vehicle-mounted device information includes entrance information indicating an entrance gate and vehicle type information indicating a vehicle type of the vehicle. system. 7. The vehicle further comprises an entrance detecting means for detecting a communication failure of the radio communication when the vehicle passes through the entrance gate, and the recording / reproducing means makes the entrance gate to the card based on the read in-vehicle device information. 3. The road-vehicle communication system according to claim 2, wherein the entrance information representing the entry is written, and the transfer means reads the entrance information from the card and transfers the entrance information to the storage means. 8. A card insertion part used in a road-to-vehicle communication system for exchanging information by radio wave communication between a vehicle and a roadside device installed on the road, the card insertion part receiving a card for recording the information in an insertable and removable manner. An in-vehicle communication device, comprising: a storage unit for storing in-vehicle device information related to the vehicle; and an information writing unit for writing the in-vehicle device information in the card. An in-vehicle communication device characterized in that