JP3764546B2 - In-vehicle device for wireless communication in automatic toll collection system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an in-vehicle device for wireless communication in, for example, an automatic toll collection system on a toll road.
[0002]
[Prior art]
A vehicle-mounted wireless device (on-vehicle device) used in a non-stop automatic toll collection system on a toll road may handle monetary information / personal information, and security measures need to be taken. In addition, the system needs to take measures to prevent this illegal use of the in-vehicle device.
[0003]
For example, for illegal transshipment of in-vehicle devices (unauthorized transshipment to in-vehicle devices for low-rate vehicle type classification), measures such as vehicle type classification by the roadside system provided at the toll gate, vehicle fixing of in-vehicle devices, etc. can be considered. None of these measures are perfect, and multiple measures need to be implemented simultaneously.
[0004]
FIG. 5 shows a vehicle fixing example of the in-vehicle device. In the figure, reference numeral 1 denotes a conventional in-vehicle device, which is fixed to the vehicle 2 and cannot be removed or has a structure in which a trace remains when removed.
As shown in FIG. 6, the in-vehicle device 1 includes a wireless communication unit 3, a CPU 4, a memory 5, and a power supply unit 6 and is provided in one case 7. The memory 5 stores the vehicle type classification code of the vehicle 2 and the amount data when the prepaid system is used.
[0005]
The vehicle-mounted device 1 configured as described above transmits and receives data wirelessly between the wireless communication unit 3 and the toll gate system based on the control of the CPU 4 when the vehicle 2 passes through the toll gate, Executes automatic toll collection processing for vehicle tolls. In this case, the CPU 4 executes toll collection processing based on the vehicle type classification code stored in the memory 5. The fee collection data obtained by the fee collection process is stored in the memory 5.
[0006]
However, in the conventional vehicle-mounted device 1, for example, when carrying out the remaining amount accumulation work and maintenance work in the case of the prepaid method, the vehicle-mounted device 1 is fixed to the vehicle 2. Dedicated equipment shown in Fig. 8 is required.
[0007]
FIG. 7 shows an example in which maintenance work is performed by installing the gantry 11 in the maintenance space. An antenna 12 is provided in the upper center of the gantry 11 and the control device 13 disposed on the side of the gantry 11 is installed. They are connected via a communication cable 14.
Then, the vehicle 2 is moved into the communication area of the antenna 12, data is transmitted and received between the vehicle-mounted device 1 mounted on the vehicle 2 and the control device 13 via the antenna 12, and the remaining amount for the vehicle-mounted device 1 is increased. And perform maintenance work.
[0008]
Further, FIG. 8 shows that the maintenance person 16 holds the antenna 15 connected to the control device 13 via the communication cable 14 by hand and approaches the vehicle 2, and connects the vehicle-mounted device 1 and the control device 13 via the antenna 15. In this example, data is transmitted and received to check and maintain the in-vehicle device 1.
Moreover, in order not to require a dedicated device as shown in FIGS. 7 and 8, there is, for example, an IC card type in-vehicle device in which the settlement function is separated from the in-vehicle device.
[0009]
[Problems to be solved by the invention]
As described above, in order to prevent fraud, the conventional vehicle-mounted device 1 has a wireless communication function as shown in FIGS. It is necessary to move the vehicle 2 into the communication areas 12 and 15 of the antennas with the remaining amount and perform maintenance work.
In addition, the IC card using type in-vehicle device has a problem that it has a complicated configuration and is expensive as compared to the commonly used in-vehicle type in-vehicle device 1.
[0010]
The present invention has been made to solve the above problems, and does not require a wide maintenance space, and can be used for wireless communication in an automatic toll collection system that can easily perform the remaining amount accumulation processing and maintenance processing with office equipment. An object is to provide an in-vehicle device.
[0011]
[Means for Solving the Problems]
The in-vehicle device for wireless communication in the automatic toll collection system according to the present invention is fixed to an installed vehicle, and has a fixed portion having a memory for storing data corresponding to the vehicle, and is attachable to and detachable from the fixed portion. A portable unit provided with a wireless communication unit that performs wireless communication with ground-side equipment with reference to data stored in the memory, and a processing unit that performs toll collection processing based on communication data by the wireless communication unit It is characterized by the following.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
Fig.1 (a) is a perspective view which shows the external appearance structure of the vehicle equipment which concerns on one Embodiment of this invention, The same figure (b) is the same side view.
[0013]
As shown in FIG. 1, the in-vehicle device 20 is a separation type including a fixed portion 21 and a portable portion 22. The fixing portion 21 is fixed to the vehicle and has a structure that cannot be easily removed. The portable part 22 has a structure that can be easily attached to the fixed part 21 and cannot be detached by vibration or the like. Further, the fixed portion 21 and the portable portion 22 are provided with a connector 23, and the circuits in the fixed portion 21 and the portable portion 22 are coupled by the connector 23.
[0014]
FIG. 2 is a block diagram showing a circuit configuration of the fixing unit 21 and the portable unit 22. The fixed unit 21 is provided with a memory 211 and a power supply unit 212 and is connected to the connector 23. In the memory 211, a vehicle type classification code corresponding to the vehicle to be mounted is stored in advance.
[0015]
The portable unit 22 includes a wireless communication unit 221 and a processing unit such as a CPU 222 and a memory 223, and the wireless communication unit 221 and the memory 223 are connected to the CPU 222. Then, the CPU 222 is connected to the connector 23. The memory 223 stores money amount data and the like by the fee collection process.
[0016]
When the fixed unit 21 and the portable unit 22 are coupled by the connector 23, the memory in the fixed unit 21 is connected to the CPU 222 in the portable unit 22, and the wireless communication unit 221, the CPU 222 in the portable unit 22, Operation power is supplied from the power supply unit 212 to the memory 223, and the memory 223 becomes operable as an in-vehicle device.
[0017]
FIG. 3 is an external perspective view of the office device 31 and the computer 32 that perform maintenance, inspection, etc. on the portable unit 22 of the in-vehicle device 20, and FIG. 4 is a block diagram showing a circuit configuration of the office device 31.
[0018]
The office device 31 is installed, for example, in an office, and has the same structure as the fixed unit 21 of the in-vehicle device 20 so that the portable unit 22 of the in-vehicle device 20 can be attached and detached. A computer 32 is connected to the office equipment 31.
[0019]
The office device 31 includes an interface circuit 311 and a power supply unit 312 and is connected to the connector 23. The computer 32 is connected to the interface circuit 311. When the portable unit 22 of the in-vehicle device 20 is attached to the office device 31, the CPU 222 in the portable unit 22 is connected to the interface circuit 311 via the connector 23, and the wireless communication unit 221, CPU 222, and memory The operating voltage is supplied from the power supply unit 312 to 223. As a result, the computer 32 can perform the remaining amount accumulation processing and maintenance processing for the portable unit 22 via the office device 31.
[0020]
In the above configuration, the portable unit 22 is normally mounted on the fixed unit 21 attached to the vehicle and functions as the in-vehicle device 20. When the vehicle travels on the toll road in this state, data is transmitted and received wirelessly between the wireless communication unit 221 and the toll gate system based on the control of the CPU 222 when passing through the toll gate, and the vehicle toll The automatic receipt process is executed. In this case, every time the portable unit 22 is attached to the fixed unit 21, the CPU 222 reads and confirms the vehicle type classification code stored in the memory 211, and executes toll collection processing based on the vehicle type classification code. The fee collection data obtained by the fee collection process is stored in the memory 223 in the portable unit 22.
[0021]
And when carrying out the accumulation process of the balance of the vehicle equipment 20, a maintenance process, etc., the portable part 22 is removed from the fixing | fixed part 21, and it mounts | wears with the office apparatus 31 installed in the office etc. When the portable unit 22 is attached to the office device 31, the CPU 222 in the portable unit 22 is connected to the interface circuit 311 of the office device 31 via the connector 23, and the wireless communication unit 221, the CPU 222, and the memory 223 are connected. An operating voltage is supplied from the power supply unit 312. In this state, the computer 32 executes a remaining amount accumulation process and a maintenance process on the portable unit 22 via the office equipment 31. Thereby, the function check of the portable unit 22 and the rewrite of the data stored in the memory 223 are performed.
[0022]
In addition, although the case where it implemented to the toll collection process of a toll road was shown in the said embodiment, also in the system which automatically settles the usage fee of a parking lot, it can implement similarly to the said embodiment. .
[0023]
【The invention's effect】
As described above in detail, according to the present invention, the in-vehicle device is constituted by the fixed portion and the portable portion, and the vehicle type classification code corresponding to the vehicle is stored in the memory provided in the fixed portion. Can be charged automatically only when attached to the fixed part. Therefore, even if the portable part is attached to the fixed part of another vehicle, the correct toll collection will be performed according to the vehicle type classification code stored in the memory of the fixed part, and the illegal transshipment of the in-vehicle device is ensured. Can be prevented.
In addition, since the portable part of the vehicle-mounted device can be separated from the vehicle, only the portable part can be attached to office equipment installed in the office or the like, and the remaining amount can be added and processed. .
[Brief description of the drawings]
FIG. 1A is an external perspective view of an in-vehicle device for wireless communication in a toll collection system according to an embodiment of the present invention, and FIG.
FIG. 2 is a block diagram showing a circuit configuration of the in-vehicle device in the embodiment.
FIG. 3 is an external perspective view of an office equipment portion in the embodiment.
FIG. 4 is an exemplary block diagram showing a circuit configuration of office equipment in the embodiment;
FIG. 5 is a diagram showing an example of fixing a conventional vehicle-mounted device to a vehicle.
FIG. 6 is a block diagram showing a circuit configuration of a conventional in-vehicle device.
FIG. 7 is a diagram showing a conventional maintenance method for an in-vehicle device.
FIG. 8 is a diagram showing another maintenance method for a conventional vehicle-mounted device.
[Explanation of symbols]
20 On-vehicle device 21 Fixed unit 211 Memory 212 Power supply unit 22 Portable unit 221 Wireless communication unit 222 CPU
223 Memory 23 Connector 31 Office equipment 312 Interface circuit 312 Power supply 32 Computer

Claims (1)

A fixed portion provided with a memory that is fixedly mounted on the mounted vehicle and stores data corresponding to the vehicle, and is detachably provided on the fixed portion, and refers to the data stored in the memory, and the ground For wireless communication in an automatic fee collection system, comprising: a wireless communication unit that performs wireless communication with a side facility; and a portable unit that includes a processing unit that performs fee collection processing based on communication data from the wireless communication unit In-vehicle device.

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