JPH113445A - Toll road traffic system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tool road traffic system simple in configuration and capable of reducing cost without needing a large scale equipment by calculating the distance an entrance and an exit and subtracting toll that corresponds to the distance from toll data with a toll adjusting means. SOLUTION: When a vehicle travels through an entrance of a toll road, an entrance radio wave receiver 14 receives entrance radio waves R1 that are sent from an entrance radio wave oscillator 2 and outputs a receiving signal Si. With this, a processing part 20 recognizes that the vehicle normally travels through the entrance. In such cases, a GPS location detector 13 receives radio waves R2 and outputs location data D to the part 20. When the vehicle goes into an exit of the toll road, an exist radio wave receiver 15 receives exit radio waves R3 and outputs a receiving signal So. With this, the part 20 calculates the distance between the entrance and the exit, calculates toll and after that, subtracts the toll from toll data that is read through a card reader/ writer 19. The reader/writer 19 writes the subtracted toll data on an IC card 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toll road traffic system used for, for example, toll road traffic control.

[0002]

2. Description of the Related Art Conventionally, traffic congestion during a so-called homecoming rush has been a problem on toll roads. The traffic congestion is caused by a temporary stop of a car when a traffic ticket is received at an entrance and when a fee is paid at a tollgate (exit or entrance). Therefore, recently, in order to eliminate the above-described traffic congestion, a toll road traffic system capable of paying a toll without stopping has been developed. This type of toll road traffic system transmits toll data necessary for toll collection via a radio wave between a radio beacon provided near a tollgate and a vehicle-mounted device mounted on a car. As a result, the charge data is input to a charge calculator provided at the tollgate. As a result, the fee calculator performs the payment of the fee based on the fee data.

[0003]

In a conventional toll road traffic system, a complicated communication protocol and an expensive and highly reliable device are used in order to prevent an error from occurring in the toll data being transmitted. Have been. Further, the conventional toll road traffic system requires considerably large-scale equipment such as a toll calculator for adjusting the toll and a control device for controlling a wireless beacon and the like.
Therefore, the conventional toll road traffic system has the drawback that the configuration is complicated, large facilities are required, and the cost is high. The present invention has been made under such a background, and an object of the present invention is to provide a toll road traffic system which has a simple configuration, does not require large-scale facilities, and is inexpensive.

[0004]

According to a first aspect of the present invention, there is provided a first transmission means provided at an entrance of a toll road, for transmitting a first signal using a radio wave as a transmission medium, and at an exit of the toll road. A second transmitting means for transmitting a second signal using a radio wave as a transmission medium, a receiving means mounted on a car passing through the toll road and receiving the first and second signals, Mounted on the vehicle, position detecting means for detecting the position of the vehicle based on position data transmitted from an artificial satellite, storage means mounted on the vehicle and storing toll data, and the receiving means is the first and the When receiving the second signal together, based on the detection result of the position detection means,
It is characterized by comprising a charge adjusting means for determining a distance between the entrance and the exit and deducting a charge corresponding to the distance from the charge data. According to a second aspect of the present invention, in the toll road traffic system according to the first aspect, an image pickup means provided at the exit and imaging a car passing through the exit, and mounted on the car, and the toll is provided. A third output unit that outputs a third signal using a radio wave as a medium when the charge is deducted by the settlement unit; and a third output unit that is provided at the exit and receives the third signal. Imaging control means for discarding the data of the imaged vehicle.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1A and 1B are diagrams showing a schematic configuration of a toll road traffic system according to an embodiment of the present invention. FIG. 1A shows an entrance 1 of a toll road 1.
FIG. 1B is a diagram illustrating a schematic configuration in the vicinity of a, and FIG. 1B is a diagram illustrating a schematic configuration in the vicinity of an exit 1b of the toll road 1.

In FIG. 1A, the toll road 1 is a two-lane road consisting of a right lane 1R and a left lane 1L.
Reference numeral 2 denotes an entrance radio oscillator for transmitting the entrance radio wave R1 toward the toll road 1, and is attached to the support 3 so as to be located immediately above the toll road 1. 4 is toll road 1
The vehicle 4 has a vehicle-mounted device (see FIG. 2) described later. The on-vehicle device 12 has a function of detecting the position of the vehicle 4 and a function of adjusting a fee.

[0007] Reference numeral 5 denotes a booth installed near the right lane 1R of the toll road 1. In this booth 5, a manager who hands a traffic ticket or the like to the driver of the car 4 is resident. Reference numeral 6 denotes a satellite, which is an artificial satellite, which transmits position data D (see FIG. 2) to a vehicle-mounted device 12 (see FIG. 2) mounted on the car 4 via a radio wave R2.
Send This position data D is data for specifying the position of the car 4.

In FIG. 1B, reference numeral 7 denotes a support provided at the exit 1b of the toll road 1. 8 is the exit radio wave R
An exit radio oscillator for transmitting the signal 3 toward the toll road 1 is attached to the support 7 so as to be located immediately above the toll road 1. 9 is a gate radio wave receiver,
Gate radio wave R4 transmitted from the vehicle-mounted device 12 (see FIG. 2)
To receive. Reference numeral 10 denotes a camera, which captures an image of the car 4 passing through the exit 1b of the toll road 1, and outputs the captured data to a control device (not shown). 11 is right lane 1R of toll road 1
It is a booth installed in the vicinity, this booth 11
There is a resident who collects fees.

FIG. 2 is a block diagram showing an electrical configuration of a toll road traffic system according to one embodiment of the present invention.
In this figure, parts corresponding to the respective parts in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted. In-vehicle device 1 shown in FIG.
2 is mounted on the car 4. In the vehicle-mounted device 12, reference numeral 13 denotes a GPS (Global Positioning System) position detector, which is a radio wave R2 transmitted from the satellite 6.
And outputs position data D obtained from the radio wave R2.

Reference numeral 14 denotes an entrance radio wave receiver for receiving the entrance radio wave R1, and outputs a reception signal Si when receiving the entrance radio wave R1. An exit radio wave receiver 15 receives the exit radio wave R3, and outputs a reception signal So when receiving the exit radio wave R3. Reference numeral 16 denotes an operation display for displaying the operation state of the vehicle-mounted device 12.

Reference numeral 17 denotes a gate radio wave oscillator for transmitting a gate radio wave R4 based on an input signal Sg. 18
Is an IC card which stores charge data and writes the charge data. Reference numeral 19 denotes a card reader / writer, which reads out the charge data stored in the IC card 18 and writes another charge data. Reference numeral 20 denotes a processing unit that controls each unit of the apparatus. The operation of the processing unit 20 will be described later in detail.

In the above configuration, the vehicle 4 shown in FIG.
Passes through the entrance 1a of the toll road 1, the entrance radio wave R1 transmitted from the entrance radio wave oscillator 2 is transmitted to the entrance radio receiver 1
4 and the received signal S
i is output. Thereby, the processing unit 20 recognizes that the car 4 has normally passed through the entrance 1a of the toll road 1.
When passing through the entrance 1a, the GPS position detector 13
Receives the radio wave R2 and outputs the position data D obtained from the radio wave R2 to the processing unit 20. Thereby, the processing unit 20 obtains the position of the entrance 1a of the toll road 1 from the position data D.

When the car 4 enters the exit 1b of the toll road 1 shown in FIG. 1 (b), the exit radio wave R3 is received by the exit radio receiver 15, and the reception signal So is output from the exit radio receiver 15. Is output. Thereby, the processing unit 20
After the position of the outlet 1b is obtained from the output position data D, the distance between the previously obtained position of the entrance 1a and the position of the outlet 1b is obtained. Next, after calculating the fee from the distance, the processing unit 20 outputs to the card reader / writer 19 fee data obtained by subtracting the fee from the fee data read by the card reader / writer 19.

Accordingly, the card reader / writer 19
Writes the subtracted charge data into the IC card 18. Also. At the same time, the processing unit 20 outputs the signal Sg to the gate radio wave oscillator 17. Accordingly, the gate radio wave R4 is transmitted from the gate radio wave oscillator 17, and the gate radio wave R4 is received by the gate radio wave receiver 9. As a result, the gate radio wave receiver 9 outputs a signal to the camera 10 to instruct the camera 10 to discard the image data of the car 4 at the exit 1b that has just been imaged. Thereby, the camera 10 discards the image data.

[0015]

As described above, according to the present invention, it is possible to obtain an effect that the configuration is simple, no large-scale equipment is required, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of a toll road traffic system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an electrical configuration of a toll road traffic system according to the same embodiment.

[Explanation of symbols]

 1 Toll Road 2 Entrance Radio Oscillator 4 Car 6 Satellite 8 Exit Radio Oscillator 9 Gate Radio Receiver 10 Camera 12 Onboard Device 13 GPS Position Detector 14 Entrance Radio Receiver 15 Exit Radio Receiver 16 Operation Indicator 17 Gate Radio Oscillator 18 IC Card 19 Card reader / writer 20 Processing unit

Claims (2)

[Claims] 1. A first transmission means provided at an entrance of a toll road and transmitting a first signal using radio waves as a transmission medium, and a second transmission means provided at an exit of a toll road and using radio waves as a transmission medium.
A second transmitting means for transmitting a signal of the following; a receiving means mounted on a car passing through the toll road, for receiving the first and second signals; a second transmitting means mounted on the car and transmitted from an artificial satellite Position detecting means for detecting the position of the vehicle based on position data; storage means mounted on the vehicle and storing toll data; and when the receiving means receives both the first and second signals, Based on the detection result of the position detecting means, determining a distance between the entrance and the exit, and deducting a fee corresponding to the distance from the fee data; Road traffic system. 2. An image pickup means provided at the exit, for taking an image of a car passing through the exit, and when the charge is settled by the charge settlement means, a third radio wave is used as a medium. A third output means for outputting a signal of the following; provided at the outlet, when receiving the third signal,
2. The toll road traffic system according to claim 1, further comprising: an imaging control unit configured to discard data of the vehicle captured by the imaging unit. 3.