KR100982885B1 - Communication reversal processing method in automatic toll collection system - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a communication reversal processing method in an automatic toll collection system.

2. The technical problem to be solved by the invention

According to the present invention, in accordance with the confirmation of the communication reversal through the entry count indicating the number of vehicles that have not been communicated in the communication area of the roadside base station, the vehicle information table generated in the order of entry is applied in reverse order to the communication reversal. Its purpose is to provide a communication reversal processing method in an automatic toll collection system for processing.

3. Summary of Solution to Invention

In the communication reversal processing method in an automatic toll collection system, an entry count initialization step of initializing (EntryCnt = 0) an entry count indicating the number of vehicles in a communication area of a roadside base station and not communicating with the roadside base station. ; A vehicle information table generating step of generating a vehicle information table of the entered vehicle as the vehicle enters the communication area of the roadside base station; A first entry count counting step of counting the entry count (EntryCnt = EntryCnt + 1) as the vehicle enters the communication area of the roadside base station; A communication reversal occurrence checking step of confirming whether or not a communication reversal that first starts tolling of a tail vehicle entering in proximity before starting tolling of a first vehicle entering the communication area of the roadside base station; And a charge collection step of collecting a charge of the vehicle using the vehicle information table according to the communication reversal occurrence confirmation result.

4. Important uses of the invention

The present invention is used for automatic toll collection system.

Automatic toll collection, communication reversal, entry count, vehicle information table

Description

Method for preventing communication reversal in automatic toll collection system {Method for prevent communication-reversion in Electronic Toll Collection System}             

1 is a view illustrating an embodiment of a toll collection method in a conventional automatic toll collection system using a DSRC.

2 and 3 is a diagram illustrating an embodiment of a communication reversal occurring in a conventional automatic toll collection system using a DSRC.

4 is a flowchart illustrating an embodiment of a communication reversal processing method in an automatic toll collection system according to the present invention.

* Explanation of symbols for the main parts of the drawings

11: vehicle entry sensor 12: vehicle classifier

13: roadside base station 14: violation shooting device

15: vehicle entry sensor

The present invention relates to a communication reversal processing method in an automatic toll collection system. More particularly, the present invention relates to entry of a communication reversal through an entry count indicating a number of vehicles that have not been communicated within a communication area of a roadside base station. The present invention relates to a communication reversal processing method in an automatic toll collection system for processing a communication reversal by applying a vehicle information table generated in sequence in reverse order.

Recently, as the social and economic scale has advanced, the demand for vehicles and transportation has exploded and the big cities face serious transportation problems, and these problems have enormous social costs.

The intelligent transport system (ITS) has been proposed to solve the traffic increase problem.

Intelligent transportation system is a next generation road system that integrates intelligent technologies such as electronics, information, communication, and control to existing communication systems to enhance the efficiency and safety of the traffic system. In addition, it is an integrated system of an information communication network and a traffic network that combines roads and vehicles using advanced information and communication technology, thereby optimizing road use to realize safe, comfortable and efficient traffic.

In order to build an intelligent transportation system, communication technology that collects and efficiently distributes high-quality traffic information is required.

ITS-dedicated short-range wireless communication (DSRC), which is emerging in response to these demands, passes through the communication area between the roadside base station apparatus having a communication radius of several meters and hundreds of meters and the base station apparatus. Point-to-Point or Point-to-Multipoint two-way high-speed communication technology between onboard vehicles that target vehicles on the road, unlike public wireless networks. With the installation of a relatively simple base station system, it not only has the advantage of providing traffic information and additional information services to users possessing low-cost communication terminals, but also enables the collection of traffic information at low cost, thereby facilitating human and material resources. Enable distribution.

Recently, the developed countries are actively researching various DSRC-based systems. In particular, in Europe, tolls are automatically collected by the DSRC-based Electronic Toll Collection System (ETCS). In Canada and the United States, with the support of the government, we are developing various systems based on DSRC.

Here, with reference to Figure 1 will be described with respect to the method of toll collection in the conventional automatic toll collection system using DSRC.

As shown in FIG. 1, when a vehicle having an on board equipment (OBE) used to communicate with a roadside base station 13 enters a detection area of the vehicle entry sensor 11, the vehicle entry sensor 11 may be used. Detects the vehicle and informs the lane controller (not shown). The lane controller then generates a process serial number to collect the toll (toll) of the entered vehicle.                         

Then, as the vehicle enters the communication area of the roadside base station 13, the vehicle classifier 12 detects the vehicle type of the entered vehicle and transmits it to the lane controller. Then, the lane controller collects the fee of the vehicle entering the processing serial number sequence using the received vehicle model information. At this time, the roadside base station 13 generally has a communication area enough to allow two vehicles to enter. The reason is that if the communication area is too narrow, normal tolls cannot be collected due to lack of communication time with a vehicle traveling at high speed. If too wide, the tolls can be detected to cause errors in the toll collection. .

The vehicle to which the toll collection is completed thus leaves the automatic toll collection system through the vehicle entrance sensor 15. At this time, the vehicle entrance sensor 15 notifies the lane controller that the vehicle has advanced. In addition, the violation photographing device 14 photographs the violation vehicle entering the vehicle in accordance with a photographing command from the lane controller.

However, such a conventional automatic toll collection system using DSRC uses a DSRC having a high frequency band of 5.8 GHz when communicating with a vehicle entering the communication area of the roadside base station 13, and thus the roadside base station 13 and the When no line of sight (LOS) is secured between vehicle terminals, a vehicle reversal in which a vehicle entering later than a vehicle entering the communication area of the roadside base station 13 starts communication with the roadside base station 13 first. This occurs and there is a problem that normal toll collection is impossible.

For better understanding, the communication reversal will be described in detail with reference to FIGS. 2 and 3.                         

As shown in FIG. 2, for example, the vehicle A of three types of vehicle, the vehicle B of one type of vehicle, and the vehicle C of three types of vehicle were sequentially detected by the vehicle entry sensor 11. That is, vehicle A enters first, then vehicle B and finally vehicle C enters.

At this time, the toll collection processing sequence in the lane controller is in order of vehicle A, vehicle B, and vehicle C in the order of entering the roadside base station 13. The reason is to generate the reference vehicle model information in the vehicle classifier 12 according to the entry order, and apply the generated reference vehicle information to the toll collection processing sequence (the sequence of vehicle A, vehicle B and vehicle C) in the lane controller. Because.

However, as shown in FIG. 3, the roadside base station 13 using the DSRC method acquires vehicle model information from the vehicle A and transmits it to the lane controller, and then communicates with the vehicle B in the following order. Because it is not secured, it cannot communicate with vehicle B, and immediately communicates with vehicle C. Therefore, the vehicle model information is not obtained from the vehicle B, and the vehicle model information is obtained from the vehicle C and transferred to the lane controller. Thereafter, as vehicle A leaves the communication area of the roadside base station 13, vehicle type information is obtained from the roadside base station 13 and vehicle B and transferred to the lane controller.

Then, the lane controller receives the reference vehicle model information (3 types) of the C vehicle detected and transmitted by the vehicle classifier 12 and the vehicle model information (3 types) obtained from the C vehicle received from the roadside base station 13 for the toll collection. Compare.

As a result of the comparison, the vehicle type information of the vehicle B to be applied for toll collection by the lane controller is one type, whereas the vehicle type information obtained from the vehicle C (vehicle mounting terminal) is three types.

In addition, when the vehicle A passes the roadside base station 13, when the roadside base station 13 starts communicating with the vehicle B and transmits vehicle type information (1 type) to the lane controller, the lane controller receives the received B. The vehicle model information of the vehicle is compared with the reference vehicle model information (3 types) of the C vehicle.

As a result of the comparison, the standard vehicle model information of the C vehicle which the lane controller intends to apply for toll collection is three, whereas the vehicle model information obtained from the vehicle B (vehicle mounting terminal) is one.

Therefore, the conventional automatic toll collection system using the DSRC toll collection in this manner had a problem that can not normally collect charges when a communication reversal occurs.

The present invention has been proposed in order to solve the above problems, the vehicle information table generated in accordance with the order of entry in accordance with the confirmation of the communication reversal through the entry count indicating the number of vehicles that did not communicate in the communication area of the roadside base station It is an object of the present invention to provide a communication reversal processing method in an automatic toll collection system for processing communication reversal by applying the reverse order.

The method of the present invention for achieving the above object is a communication reversal processing method in an automatic toll collection system, comprising: initializing an entry count indicating the number of vehicles in a communication area of a roadside base station and not communicating with the roadside base station (EntryCnt Entry count initialization step = 0); A vehicle information table generating step of generating a vehicle information table of the entered vehicle as the vehicle enters the communication area of the roadside base station; A first entry count counting step of counting the entry count (EntryCnt = EntryCnt + 1) as the vehicle enters the communication area of the roadside base station; A communication reversal occurrence checking step of confirming whether or not a communication reversal that first starts tolling of a tail vehicle entering in proximity before starting tolling of a first vehicle entering the communication area of the roadside base station; And a charge collection step of collecting a charge of a vehicle using the vehicle information table according to the communication reversal occurrence confirmation result.

The above-mentioned objects, features and advantages will become more apparent from the following detailed description in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 is a flowchart illustrating a communication reversal processing method in an automatic toll collection system according to the present invention.

First, the automatic toll collection system initializes (EntryCnt = 0) an entry count indicating the number of vehicles in the communication area of the roadside base station 13 and not communicating with the roadside base station 13.

Thereafter, as the vehicle enters the communication area of the roadside base station 13, a vehicle information table of the entered vehicle is generated (402 and 403). The entry count is counted (EntryCnt = EntryCnt + 1) (404). At this time, the generated vehicle information table includes vehicle model information transmitted from the vehicle classifier 12. In addition, the communication area of the roadside base station 13 is large enough to allow two vehicles to enter.

Then, it is checked whether there is a communication request for toll collection from the vehicle (405). At this time, it is preferable that the time for confirming the communication request for toll collection from the vehicle is until the next vehicle entry is detected.

If there is no communication request for toll collection from the vehicle, the confirmation result 405 proceeds to step "402" to perform the subsequent process.

On the other hand, if the confirmation result 405, the communication request for toll collection from the vehicle, it is confirmed whether the entry count exceeds 1 (406).

As a result of the check 406, if the entry count does not exceed 1, the charge of the vehicle is collected using the generated vehicle information table (407), and the entry count is counted (EntryCnt = EntryCnt-1) (408). ). In addition, the process proceeds to step "402" to perform the following process.

Such "401" to "408" process represents a general charge collection process when there is no communication reversal.

On the other hand, if the check result 406, the entry count exceeds 1, the vehicle that first entered the communication area of the roadside base station 13 did not make a communication request for toll collection with the roadside base station 13; it means. In other words, a communication reversal has occurred. Therefore, delaying the communication completion time as much as possible to meet the charge collection order (409), and does not apply the first vehicle information table generated for the toll collection of the first entering vehicle to the currently communicating vehicle, and second vehicle information. The fee is collected by applying the table (410).

Thereafter, the entry count is counted (EntryCnt = EntryCnt-2) (411). After the delay of the communication completion time is released, the process proceeds to the "402" process to perform the subsequent process (412).

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

As described above, the present invention has the effect of allowing a normal charge to be collected even if a communication reversal occurs that first collects the charge of a trailing vehicle that enters in close proximity before initiating tolling of the first vehicle entering the communication area of the roadside base station. There is.

Claims (4)

In the communication reversal processing method in an automatic toll collection system, An entry count initialization step of initializing (EntryCnt = 0) an entry count indicating the number of vehicles in the communication area of the roadside base station and not communicating with the roadside base station; A vehicle information table generating step of generating a vehicle information table of the entered vehicle as the vehicle enters the communication area of the roadside base station; A first entry count counting step of counting the entry count (EntryCnt = EntryCnt + 1) as the vehicle enters the communication area of the roadside base station; A communication reversal occurrence checking step of confirming whether or not a communication reversal that first starts tolling of a tail vehicle entering in proximity before starting tolling of a first vehicle entering the communication area of the roadside base station; And A fee collection step of collecting a fee of the vehicle using the vehicle information table according to the communication reversal occurrence confirmation result Communication reversal processing method in an automatic toll collection system comprising a. The method of claim 1, The communication reversal occurrence check step, A communication request confirmation step of confirming whether there is a communication request for toll collection from the vehicle; An entry count checking step of confirming whether a subsequent vehicle enters when there is no communication request for toll collection from the vehicle and checking whether the entry count exceeds 1 when there is a communication request for toll collection; And Communication reversal determination step of determining the communication reversal as the result of the entry count check, exceeding 1 Communication reversal processing method in an automatic toll collection system comprising a. The method of claim 1, The toll collection step, A first charge collection step of collecting charges from a vehicle by sequentially applying vehicle information tables generated in an entry order as the communication reversal does not occur; A second entry count counting step of counting an entry count (EntryCnt = EntryCnt-1) as the toll collection is completed; A second charge collection step of collecting charges by applying a vehicle information table generated in an entry order of a vehicle in reverse order as the communication reversal occurs; And A third entry count counting step of counting entry counts (EntryCnt = EntryCnt-2) as the toll collection is completed; Communication reversal processing method in an automatic toll collection system comprising a. The method of claim 1, The communication reversal processing method of the automatic toll collection system, characterized in that to match the order of charge collection and the vehicle entry by delaying the communication completion time with the vehicle as the communication reversal occurs.

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