JP5463820B2 - Billing apparatus, billing method, and program - Google Patents

Description

  The present invention relates to a billing technique for collecting a fee on a toll road such as an expressway without stopping a traveling vehicle.

  When a vehicle passes through the toll gate, it is possible to collect charges non-stop by exchanging billing data wirelessly between the on-board unit mounted on the vehicle and the antenna installed at the toll gate. Such an ETC (Electronic Toll Collection) system has become available on many toll roads.

  In addition, ETC free flow systems that collect non-stop charges for vehicles traveling at high speed on the main line are also being installed. In the ETC free flow system, as shown in FIG. 14, the ETC processing antenna unit 131 is arranged on the main line using a portal column or the like, and the vehicle-mounted device of the vehicle that has entered the ETC processing antenna unit 131 and its stable communication area 132. By exchanging billing data wirelessly with, the fee is collected non-stop. Here, the stable communication area 132 is an area where stable wireless communication (wireless communication with a bit error rate equal to or less than a predetermined reference value) can be performed with the vehicle-mounted device, and is incident on the vehicle-mounted device. This is an area where the power is equal to or greater than a predetermined value (stable communication area lower limit value). According to the ETC free flow system, the toll gate can be dispensed with, so that the speed reduction of the vehicle at the toll gate can be eliminated, and the installation cost can be suppressed.

  Also, using two roadside radios, vehicles that enter the toll-charged area from the general road are charged non-stop, and vehicles that leave the toll-charged area on the general road are charged There has also been proposed a billing system that does not carry out (see, for example, Patent Document 1).

  As shown in FIG. 15, the billing system described in Patent Document 1 includes two roadside radio devices 1 and 2 installed along a general road. The vehicle 6 that is about to enter the chargeable area 5 from the general road first passes through the communication area 3 of the roadside wireless device 1, then passes through the communication area 4 of the roadside wireless device 2, and then charges Enter area 5.

  When the vehicle 6 enters the communication area 3, the roadside wireless device 1 acquires the unique information of the vehicle 6 by performing wireless communication with the vehicle-mounted device of the vehicle 6, and transmits the acquired unique information to the roadside wireless device 2. When the roadside wireless device 2 receives the unique information from the roadside wireless device 1, the roadside wireless device 2 stores it in a unique information storage unit (not shown).

  Thereafter, when the vehicle 6 enters the communication area 4, the roadside wireless device 2 acquires the unique information of the vehicle 6 through wireless communication with the vehicle-mounted device, and the same unique information is accumulated in the unique information storage unit. Check whether there is any. When the same unique information is accumulated, it is determined that the vehicle 6 enters the charge charge target area 5 and the charge processing for the vehicle-mounted device is executed. In this example, since the unique information identical to the unique information of the vehicle 6 is accumulated in the unique information storage unit, the roadside radio device 2 executes the billing process. When the information is not accumulated, the roadside apparatus 2 does not execute the charging process.

Japanese Patent No. 3666406

  In the ETC free flow system, the toll gate can be eliminated, so that the speed reduction of the vehicle at the toll gate and the installation cost can be suppressed. However, the ETC free flow system is charged for vehicles that are traveling at high speed on a main line consisting of multiple lanes, and the influence of shadowing by large vehicles such as trucks must also be considered. As shown in FIG. 14, it is necessary to increase the size of the stable communication area 132. For this reason, the radio wave leaks outside the range to be originally communicated, and there is a possibility that wireless communication is performed with the vehicles 153 and 154 traveling on the opposite lane or the adjacent general road, resulting in erroneous charges. If the size of the stable communication area 132 is reduced in order to prevent such erroneous charges, normal communication with a high-speed vehicle or a vehicle affected by shadowing cannot be performed, and a charge omission may occur. There is. In FIG. 14, in the unstable communication area 133, the incident power to the vehicle-mounted device is smaller than the lower limit value of the stable communication area, and the no-response level (the vehicle-mounted device should be unresponsive to communication from the base station. (Incident power). Depending on the vehicle-mounted device, when entering the unstable communication area 133, wireless communication with the ETC processing antenna unit 131 may be performed.

  Further, according to the technology described in Patent Document 1, non-stop charging is performed for a vehicle entering a toll road from a general road, and charging processing is performed for a vehicle exiting from the toll road to the general road. Can be prevented. However, when the technique described in Patent Document 1 is applied to an ETC free flow system, there is a possibility that an erroneous charge or a charge omission occurs. Now, as shown in FIG. 16, it is assumed that the roadside radios 1 and 2 are installed on the main road of the toll road, and the sizes of the communication areas (stable communication areas) 3 and 4 of the radios 1 and 2 are set large. . In this case, since the vehicle 7 traveling on the main line performs wireless communication in the order of the roadside wireless devices 1 and 2, when the vehicle 7 enters the communication area 4, it is charged by the roadside wireless device 2. Further, even if the vehicle 8 traveling in the oncoming lane communicates with the roadside radios 1 and 2 due to the influence of the leaked radio waves, the communication order is the roadside radios 2 and 1, and therefore, the vehicle 8 is charged. Absent. However, if the vehicle 9 traveling on a general road adjacent to or directly below the main line communicates with the roadside radios 1 and 2 under the influence of leaked radio waves, the communication order is the roadside radios 1 and 2. , Will be charged incorrectly. Further, if the size of the communication area is reduced in order to prevent the occurrence of such a situation, there is a possibility that billing leakage will occur.

  Accordingly, an object of the present invention is to provide a billing apparatus that solves the problem that erroneous billing or billing omission may occur.

The first charging device according to the present invention is:
Specific information acquisition antenna installed on toll road,
A billing processing antenna that has a wider communication area than the specific information acquisition antenna and is installed downstream of the specific information acquisition antenna on the toll road;
The mobile station that has entered the communication area of the specific information acquisition antenna performs radio communication with the mobile station via the specific information acquisition antenna to acquire the specific information of the mobile station and enters the communication area of the charging processing antenna. The mobile station obtains unique information of the mobile station by performing wireless communication with the mobile station through the charging processing antenna, and the instruction through the charging processing antenna by instructing the mobile station to be charged A wireless control unit that performs wireless communication with the received mobile station and transmits and receives billing processing information;
The unique information acquired by the wireless control unit via the unique information acquisition antenna is recorded in a unique information storage unit, and the same unique information as the unique information acquired by the wireless control unit via the charging processing antenna is stored. When recorded in the unique information storage unit, a charging processing unit that instructs the radio control unit to charge a mobile station having the unique information to be charged.

The first charging method according to the present invention is as follows.
The wireless control unit acquires the specific information of the mobile station by performing wireless communication with the mobile station that has entered the communication area of the specific information acquisition antenna installed on the toll road, and the specific information acquisition antenna, A mobile station that has a wider communication area than the specific information acquisition antenna and has entered the communication area of the charge processing antenna installed downstream of the specific information acquisition antenna on the toll road and the charging processing antenna The mobile station obtains unique information of the mobile station through wireless communication, and performs wireless communication with the instructed mobile station through the charging processing antenna when the mobile station to be charged is instructed. , Send and receive billing information,
The charging processing unit records the unique information acquired by the wireless control unit via the unique information acquisition antenna in a specific information storage unit, and the wireless control unit acquires the unique information acquired via the charging processing antenna. When the same unique information is recorded in the unique information storage unit, the wireless control unit is instructed to charge a mobile station having the unique information as a charging target.

The first program according to the present invention is:
A unique information acquisition antenna installed on a toll road, and a billing processing antenna installed on the toll road downstream of the unique information acquisition antenna and having a wider communication area than the specific information acquisition antenna; A computer to communicate with
The mobile station that has entered the communication area of the specific information acquisition antenna performs radio communication with the mobile station via the specific information acquisition antenna to acquire the specific information of the mobile station and enters the communication area of the charging processing antenna. The mobile station obtains unique information of the mobile station by performing wireless communication with the mobile station through the charging processing antenna, and the instruction through the charging processing antenna by instructing the mobile station to be charged A wireless control unit that performs wireless communication with the received mobile station and transmits / receives information for billing processing,
The unique information acquired by the wireless control unit via the unique information acquisition antenna is recorded in a unique information storage unit, and the same unique information as the unique information acquired by the wireless control unit via the charging processing antenna is stored. When recorded in the unique information storage unit, it functions as a billing processing unit that instructs the radio control unit to charge a mobile station having the unique information.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to prevent the false charge with respect to the vehicle which drive | works an oncoming lane and a general road, the omission of charge with respect to the vehicle which drive | works a main line can be prevented.

It is a block diagram which shows the structural example of 1st Embodiment of the charging device concerning this invention. It is a figure which shows the positional relationship of the ETC process antenna part 131, the LID acquisition antenna part 141, the stable communication area, and the unstable communication area. It is a figure which shows an example of a communication frame. 3 is a block diagram illustrating a configuration example of a wireless control unit 121. FIG. 3 is a block diagram illustrating a configuration example of an ETC control unit 111. FIG. It is a block diagram which shows the structural example of the onboard equipment 60. FIG. FIG. 5 is a sequence diagram illustrating a state in which charging is performed on a vehicle in the first embodiment. 5 is a flowchart illustrating a processing example of a control unit 112. It is the sequence diagram which showed a mode that an erroneous charge is prevented in 1st Embodiment. It is a block diagram which shows the structural example of 2nd Embodiment of the charging device concerning this invention. It is a block diagram which shows the structural example of 3rd Embodiment of the charging device concerning this invention. It is a figure which shows the positional relationship of the antenna part in 3rd Embodiment, the stable communication area, and the unstable communication area. It is a figure for demonstrating the 4th accounting apparatus concerning this invention. It is a figure for demonstrating an ETC free flow system. It is a figure for demonstrating the charging system described in patent document 1. FIG. It is a figure for demonstrating the problem of the technique described in patent document 1. FIG.

  Next, embodiments of the present invention will be described in detail.

[First embodiment of the present invention]
Referring to FIG. 1, the first embodiment of the charging apparatus according to the present invention includes an ETC control unit 111, a radio control unit 121, an ETC processing antenna unit 131, an LID (link ID) acquisition antenna unit 141, It has.

  The ETC processing antenna unit 131 and the LID acquisition antenna unit 141 are installed on the main road of the toll road by a portal column or the like. In the present embodiment, as shown in FIG. 2, it is assumed that both antenna portions 131 and 141 are installed on an up main line having a three-lane configuration.

  The ETC processing antenna unit 131 is provided downstream of the LID acquisition antenna unit 141 on the main line. In addition, the sizes of the stable communication area 132 and the unstable communication area 133 of the ETC processing antenna unit 131 are larger than the sizes of the stable communication area 142 and the unstable communication area 143 of the LID acquisition antenna unit 141. In the example of FIG. 2, the size of the stable communication area 132 of the ETC processing antenna unit 131 in the road width direction is larger than the road width (the width of the main line), and the stable communication area 142 of the LID acquisition antenna unit 141 The size in the road width direction is smaller than the road width. The size of the unstable communication area 143 of the LID acquisition antenna 141 in the road width direction is substantially equal to the road width.

  The ETC processing antenna unit 131 includes an antenna ANT1, and includes a transmission / reception sharing unit and a modulation / demodulation unit (not shown). The LID acquisition antenna unit 141 includes an antenna ANT2, and includes a transmission / reception sharing unit and a modulation / demodulation unit (not shown).

  The wireless control unit 121 performs wireless communication with the vehicle-mounted device using a communication frame composed of a plurality of slots, and exchanges LID as vehicle specific information and information (charging processing information) necessary for charging processing. . Further, as shown in FIG. 3, the radio control unit 121 switches the antenna unit to be used for each communication frame. In the example of FIG. 3, the slots of the communication frames 201 and 203 are transmitted / received via the ETC processing antenna unit 131, and the slots of the communication frames 202 and 204 are transmitted / received via the LID acquisition antenna unit 141. The communication frame includes a frame control message slot (FCMS) for assigning slots, a message data slot (MDS) for data transfer, and an activation slot (ACTS) for association (link request) to the communication link of the base station. Consists of. The ARIB STD-T75 stipulates that the transmission rate is 1024 Kbps when the modulation method is ASK, and that the transmission rate is 4096 Kbps when the modulation method is π / 4 shift QPSK. Shall be followed.

  Referring to FIG. 4, the wireless control unit 121 includes a switching unit 125 and a data processing unit 126. The switching unit 125 has a function of switching the antenna units 131 and 141 used in communication frame units. The data processing unit 126 has a function of passing the LID and billing processing information sent from the vehicle-mounted device to the ETC control unit 111 via the ETC processing antenna unit 131 or the LID acquisition antenna unit 141, and the ETC control unit 111. It has a function of inserting charging processing information into an appropriate slot of a communication frame for the ETC processing antenna unit 131 and passing it to the switching means 125. When the data processing unit 126 passes the LID sent from the vehicle-mounted device to the ETC processing unit 111, it is received by the ETC processing antenna unit 131 or received by the LID acquisition antenna unit 141 The reception source antenna unit information indicating whether or not is also passed to the ETC processing unit 111.

  Referring to FIG. 5, the ETC control unit 111 includes a control unit 112 and an LID storage unit 115. The control unit 112 includes a determination unit 113 and a billing processing unit 114.

  When the LID passed from the wireless control unit 121 is received by the LID acquisition antenna unit 141, the determination unit 113 records the LID in the LID storage unit 115. When the LID passed from the control unit 121 is received by the ETC processing antenna unit 131, the LID is compared with the LID recorded in the LID storage unit 115, and the same LID exists. If the same LID does not exist, it is determined that the charging process is not performed.

  When the determination unit 113 determines that the charging process is to be performed, the charging processing unit 114 passes information (LID of the charging target vehicle) necessary for initial connection with the on-vehicle device of the charging target vehicle to the wireless control unit 121. Or information to be written on the IC card of the vehicle-mounted device created based on the information sent from the chargeable vehicle, etc., to the wireless control unit 121.

  Note that the control unit 112 in the ETC control unit 111 and the data processing unit 126 in the wireless control unit 121 can be realized by a CPU (Central Processing Unit). Do as follows. A recording medium such as a disk or a semiconductor memory on which a program for causing the CPU to function as the control unit 112 and the data processing unit 126 is prepared, and the CPU reads the program. The CPU realizes the control unit 112 and the data processing unit 126 on the CPU by controlling its own operation according to the read program.

  Referring to FIG. 6, the vehicle-mounted device 60 includes an antenna 61, a transmission / reception unit 62, a modem unit 63, a data processing unit (signal processing unit) 64, a control unit 65 that controls the entire vehicle-mounted device, and an IC card. A connection unit 66 and an IC card 67 on which information necessary for performing the accounting process is recorded are provided.

  The control unit 65 randomly selects a 4-octet LID at the time of engine startup or the like, and records it in a storage unit (not shown) as vehicle specific information. Further, the control unit 65 transmits LID and billing processing information and reads / writes information from / to the IC card 67 according to the contents of the received FCMS and MDS.

  Next, the operation of the present embodiment will be described. As shown in FIG. 2, when the vehicle 151 traveling on the main road of the toll road enters the stable communication area 142 of the LID acquisition antenna unit 141, the vehicle-mounted device 60 mounted on the vehicle 151 reads the contents of the received FCMS. Then, LID = A of the own vehicle 151 (LID having a value of A) is transmitted to the LID acquisition antenna unit 141 (S71 in FIG. 7). This LID = A is sent to the ETC control unit 111 via the LID acquisition antenna unit 141 and the radio control unit 121. Note that when the LID = A is passed to the ETC control unit 111, the radio control unit 121 also passes reception antenna unit information indicating that the reception source is the LID acquisition antenna unit 141.

  If the determination means 113 in the ETC control unit 111 determines that LID = A is received by the LID acquisition antenna unit 141 based on the reception source antenna unit information (S81 in FIG. 8 is YES), LID = A Is recorded in the LID storage unit 115 (S85).

  Thereafter, when the vehicle 115 enters the stable communication area 132 of the ETC processing antenna unit 131, the vehicle-mounted device 60 transmits LID = A of the host vehicle 115 to the ETC processing antenna unit 131 (S72 in FIG. 7). This LID = A is transmitted to the ETC control unit 111 via the ETC processing antenna unit 131 and the radio control unit 121. At that time, reception source antenna unit information indicating that the reception source of LID = A is the ETC processing antenna unit 131 is also sent to the ETC control unit 111.

  If the determination unit 113 in the ETC control unit 111 determines that LID = A is received by the ETC processing antenna unit 131 based on the reception source antenna unit information (S81 in FIG. 8 is NO), the LIS storage unit It is checked whether LID = A is recorded in 115 (S82). And when not recording (S82 is NO), the completion | finish process of the radio | wireless communication between onboard equipment is performed (S84). On the other hand, if it is recorded (YES in S82), the charging processing unit 114 executes charging processing and termination processing (S83, S84). In the charging process, information (LID = A of the vehicle 151) necessary for initial connection with the vehicle-mounted device 60 of the charging target vehicle 151 is passed to the wireless control unit 121, or information sent from the charging target vehicle 151 Information to be written on the IC card 67 of the in-vehicle device 60 created based on the above is passed to the wireless control unit 121. Thereby, as shown in FIG. 7, an initial connection operation (S73) is performed with the vehicle-mounted device 60 of the vehicle 151, and thereafter, ETC such as information acquisition processing, information writing processing, and termination processing (S74 to S76). Processing is performed. In the charging process, a process of deleting LID = A of the charging target vehicle from the LID storage unit 115 is also performed.

  Next, the operation when the vehicle 153 traveling in the oncoming lane enters the unstable communication area 133 of the ETC processing antenna unit 131 as shown in FIG. 2 will be described. When the vehicle 153 enters the unstable communication area 133 of the ETC processing antenna unit 131, wireless communication is performed between the vehicle-mounted device and the ETC processing antenna unit 131. As shown in S91 of FIG. B may be transmitted to the ETC processing antenna unit 131. This LID = B is sent to the ETC control unit 111 via the ETC processing antenna unit 131 and the radio control unit 121. The determination unit 113 in the ETC control unit 111 checks whether LID = B is recorded in the LID storage unit 115 (S82 in FIG. 8). In this case, since the vehicle 153 does not pass through the stable communication area 142 and the unstable communication area 143 of the LID acquisition antenna unit 141, LID = B is not recorded in the LID storage unit 115. Therefore, the determination unit 113 performs a termination process for terminating the wireless communication with the vehicle-mounted device (S84), so that the vehicle 153 is not charged (incorrect charge). Further, even when a vehicle 154 traveling on a general road enters the unstable area 133 of the ETC processing antenna unit 131 and wireless communication is performed between the vehicle-mounted device and the ETC processing antenna unit 131 as shown in FIG. Since the LID acquisition antenna unit 141 has not acquired the LID, the same process as described above is performed, and the vehicle 154 is not charged erroneously.

[Effect of the first embodiment]
According to the present embodiment, it is possible to prevent a false charge for a vehicle traveling on an oncoming lane or an adjacent general road, and to prevent a charge omission for a vehicle traveling on the main line. Can be obtained. The reason is that the LID acquisition antenna unit 141 as a unique information acquisition antenna and the ETC processing antenna unit 131 as a charging processing antenna having a larger communication area (stable communication area) than the LID acquisition antenna unit 141 are charged. For vehicles that are installed on the road and for which LID that is vehicle specific information cannot be acquired via the LID acquisition antenna unit 141, even if the LID of the vehicle can be acquired by the ETC processing antenna unit 131, It is because it is made not to perform. In other words, by reducing the size of the communication area of the LID acquisition antenna unit 141, it is no longer necessary to acquire the LID of vehicles other than the charging target vehicle traveling on the highway. There is no longer a wrong charge for a running vehicle. In addition, by increasing the size of the communication area of the ETC processing antenna unit 131, it is possible to stably transmit and receive various information related to ETC with the vehicle-mounted device mounted on the charging target vehicle. Therefore, it is possible to prevent a charge omission for a vehicle traveling on the main line. Since the LID acquisition antenna unit 141 transmits and receives only information related to LID acquisition, there is no problem even if the size of the communication area is reduced.

  In the present embodiment, the radio control unit 121 switches between the ETC processing antenna unit 131 and the LID acquisition antenna unit 141 for each communication frame, and the number of radio control units is one. Therefore, the second effect that the configuration can be made economical can be obtained.

[Second embodiment of the present invention]
Next, a second embodiment of the billing apparatus according to the present invention will be described.

  Referring to FIG. 10, the charging apparatus according to the present embodiment is different from that shown in FIG. 1 in that radio control units 123 and 124 are provided for the ETC processing antenna unit 131 and the LID acquisition antenna unit 141, respectively. This is different from the accounting apparatus of the first embodiment. The processing performed by the determination unit 113 (see FIG. 5) in the ETC control unit 111 is also slightly different from the first embodiment.

  The wireless control unit 123 has a function of passing LID and charging processing information sent from the vehicle-mounted device via the ETC processing antenna unit 131 to the ETC control unit 111, and charging processing information passed from the ETC control unit 111 as a communication frame. And transmitting to the ETC processing antenna unit 131. The wireless control unit 124 has a function of passing the LID sent from the vehicle-mounted device to the ETC control unit 111 via the LID acquisition antenna unit 141.

  Next, the operation of the present embodiment will be described. It is assumed that the installation positions of both antenna units 131 and 141 and the relationship between the stable communication area and the unstable communication area are as shown in FIG.

  The LID acquisition antenna unit 141 passes the LID sent from the vehicle-mounted device that has entered the stable communication area 142 to the radio control unit 124, and the radio control unit 124 passes the LID to the ETC control unit 111. When the LID is passed from the radio control unit 124, the determination unit 113 in the ETC control unit 111 records it in the LID storage unit 115.

  The ETC processing antenna unit 131 passes the LID sent from the vehicle-mounted device of the vehicle that has entered the stable communication area 132 or the unstable communication area 133 to the radio control unit 123, and the radio control unit 123 sends the LID. It is passed to the ETC control unit 111. When the LID is passed from the radio control unit 123, the determination unit 113 in the ETC control unit 111 determines whether or not the same LID is recorded in the LID storage unit 115. And when not recorded, the termination process which complete | finishes the radio | wireless process between onboard equipment is performed. On the other hand, if it is recorded, the billing processing unit 114 is activated and the same processing as described above is performed.

[Effect of the second embodiment]
According to the present embodiment, in addition to the first effect described above, a third effect is obtained in which a charging apparatus can be configured using a general wireless control unit that does not include a switching unit. Can do.

[Third embodiment of the present invention]
Next, a third embodiment of the accounting apparatus according to the present invention will be described.

  Referring to FIG. 11, the charging apparatus according to the present embodiment is added with wireless control units 124a and 124b, and added with LID acquisition antenna units 141a and 141b having antennas ANT2a and ANT2b. Is different from the accounting apparatus of the second embodiment shown in FIG. The processing performed by the determination unit 113 in the ETC control unit 111 is also slightly different from that in the second embodiment.

  Referring to FIG. 12, the ETC processing antenna unit 131 is installed on the central lane of the main line, and the LID acquisition antenna units 141, 141a, and 141b are installed on the first, second, and third lanes, respectively. The size in the road width direction of the stable communication area 132 of the ETC processing antenna unit 131 is larger than the road width (the width of the main line), and the stable communication areas 142, 142a, 142a, 142b of the LID acquisition antenna units 141, 141a, 141b The size of 142b in the road width direction is smaller than the lane width. The size of the unstable communication areas 143, 143a, 143b of the LID acquisition antennas 141, 141a, 141b in the road width direction is substantially equal to the lane width.

  Next, the operation of the present embodiment will be described.

  The LID acquisition antenna units 141, 141a, and 141b pass the LIDs sent from the vehicle-mounted devices that have entered the stable communication areas 142, 142a, and 142b to the radio control units 124, 124a, and 124b, and the radio control units 124, The 124 a and 124 b pass the LID to the ETC control unit 111. When the LID is passed from the radio control units 124, 124a, and 124b, the determination unit 113 in the ETC control unit 111 checks whether or not the same LID is recorded in the LID storage unit 115. If not recorded, the LID is recorded.

  The ETC processing antenna unit 131 passes the LID sent from the vehicle-mounted device of the vehicle that has entered the stable communication area 132 or the unstable communication area 133 to the radio control unit 123, and the radio control unit 123 sends the LID. It is passed to the ETC control unit 111. When the LID is passed from the radio control unit 123, the determination unit 113 in the ETC control unit 111 determines whether or not the same LID is recorded in the LID storage unit 115. And when not recorded, the completion | finish process which complete | finishes the radio | wireless process between onboard equipment via the radio | wireless process part 123 and the ETC process antenna part 131 is performed. On the other hand, if it is recorded, the billing processing unit 114 is activated and the same processing as described above is performed.

[Effect of the third embodiment]
In the present embodiment, since the plurality of LID acquisition antenna units 141, 141a, 141b are arranged apart from each other in the width direction of the road, the areas of the unstable communication areas 143, 143a, 143b are set to the first and second implementations. It can be made smaller compared to the form. As a result, according to the present embodiment, in addition to the first effect described above, the probability that the vehicle traveling on the main line travels in the unstable communication area is reduced, and the LID of the vehicle can be acquired with high probability. Therefore, it is possible to obtain the fourth effect that the accounting omission can be extremely reduced.

[Fourth embodiment of the present invention]
Next, a fourth embodiment of the accounting apparatus according to the present invention will be described.

  In the present embodiment, the ETC processing antenna unit 131 and the LID acquisition antenna units 141, 141a, 141b of the charging apparatus shown in FIG. 11 are installed on the main line of the toll road as shown in FIG.

  These antenna units are installed in the order of the ETC processing antenna unit 131 and the LID acquisition antenna units 141, 141a, and 141b from the downstream to the upstream of the main line. The size of the stable communication area 132 of the ETC processing antenna unit 131 in the road width direction is slightly larger than the road width. Further, the size in the road width direction of the stable communication areas 142, 142a, 142b of the LID acquisition antenna units 141, 141a, 141b is smaller than the road width, and the size in the road width direction of the unstable communication areas 143, 143a, 143b is The road width is almost equal.

  Next, the operation of the present embodiment will be described. The radio control units 124, 124 a, 124 b pass the LID sent from the vehicle-mounted device via the LID acquisition antenna units 141, 141 a, 141 b to the ETC control unit 111. The determination unit 113 in the ETC control unit 111 checks whether or not the same LID as the LID passed from the radio control units 124, 124a, and 124b is recorded in the LID storage unit 115. The LID is recorded in the LID storage unit 115. That is, if at least one of the LID acquisition antenna units 141, 141a, and 141b can acquire the LID of the vehicle, the LID of the vehicle in the LID storage unit 115 is recorded.

  The wireless control unit 123 passes the LID sent from the in-vehicle device via the ETC processing antenna unit 131 to the ETC control unit 111. The determination unit 113 in the ETC control unit 111 determines whether or not the same LID as the LID passed from the wireless control unit 123 is recorded in the LID storage unit 115. And when not recorded, the completion | finish process which complete | finishes the radio | wireless communication between onboard equipment via the radio | wireless control part 123 and the ETC process antenna part 131 is performed. If it is recorded, the accounting processing unit 114 is activated to perform the same processing as described above.

[Effect of the fourth embodiment]
In the present embodiment, a plurality of LID acquisition antenna units 141, 141a, and 141b are arranged apart from each other along the traveling direction of the vehicle, and the vehicle has an LID acquired by at least one LID acquisition antenna unit. Since the billing process is performed, in addition to the first effect described above, the fifth effect is that billing can be reliably performed even when a failure occurs in the LID acquisition antenna unit. Can be obtained.

  The present invention is preferably applied to an ETC free flow system.

111 ... ETC control unit 112 ... control unit 113 ... determination unit 114 ... billing processing unit 115 ... LID storage unit 121 ... radio control unit 125 ... switching unit 126 ... Data processing unit 131 ... ETC processing antenna unit 132 ... stable communication area 133 ... unstable communication area 141 ... LID acquisition antenna unit 142 ... stable communication area 143 ... unstable communication area 151 154, vehicle 60, vehicle-mounted device 61, antenna 62, transmission / reception unit 63, modulation / demodulation unit 64, data processing unit 65, control unit 66, IC card connection unit 67 ... IC card

Claims (10)

Specific information acquisition antenna installed on toll road,
A billing processing antenna that has a wider communication area than the specific information acquisition antenna and is installed downstream of the specific information acquisition antenna on the toll road;
The mobile station that has entered the communication area of the specific information acquisition antenna performs radio communication with the mobile station via the specific information acquisition antenna to acquire the specific information of the mobile station and enters the communication area of the charging processing antenna. The mobile station obtains unique information of the mobile station by performing wireless communication with the mobile station through the charging processing antenna, and the instruction through the charging processing antenna by instructing the mobile station to be charged A wireless control unit that performs wireless communication with the received mobile station and transmits and receives billing processing information;
The unique information acquired by the wireless control unit via the unique information acquisition antenna is recorded in a unique information storage unit, and the same unique information as the unique information acquired by the wireless control unit via the charging processing antenna is stored. A charging apparatus comprising: a charging processing unit that instructs the radio control unit to charge a mobile station having the specific information when it is recorded in the specific information storage unit . The charging device according to claim 1, wherein
The charging apparatus according to claim 1, wherein the wireless control unit performs wireless communication via the unique information acquisition antenna and wireless communication via the charging processing antenna in a time-sharing manner. The charging device according to claim 1 or 2,
A billing apparatus, wherein the communication area of the antenna for acquiring unique information has a size in a road width direction smaller than a road width. The charging device according to any one of claims 1 to 3,
The charging apparatus according to claim 1, wherein the communication area of the charging processing antenna has a size in the road width direction larger than the road width. The charging device according to claim 1, wherein
There are multiple antennas for acquiring the specific information,
The plurality of unique information acquisition antennas are arranged apart from each other in the width direction of the toll road,
The accounting apparatus according to claim 1, wherein the radio control unit acquires the specific information of the mobile station by performing radio communication with the mobile station that has entered the communication area for each of the plurality of specific information acquisition antennas. The charging device according to claim 1, wherein
There are multiple antennas for acquiring the specific information,
The plurality of unique information acquisition antennas are arranged apart from each other along the traveling direction of the mobile station on the toll road,
The non linear control section, for each of the plurality of unique information acquisition antenna, charging device for by performing mobile station and a radio communication entering its communication area and obtains the unique information of the mobile station . The wireless control unit acquires the specific information of the mobile station by performing wireless communication with the mobile station that has entered the communication area of the specific information acquisition antenna installed on the toll road, and the specific information acquisition antenna, A mobile station that has a wider communication area than the specific information acquisition antenna and has entered the communication area of the charge processing antenna installed downstream of the specific information acquisition antenna on the toll road and the charging processing antenna The mobile station obtains unique information of the mobile station through wireless communication, and performs wireless communication with the instructed mobile station through the charging processing antenna when the mobile station to be charged is instructed. , Send and receive billing information,
The charging processing unit records the unique information acquired by the wireless control unit via the unique information acquisition antenna in a specific information storage unit, and the wireless control unit acquires the unique information acquired via the charging processing antenna. A charging method, wherein when the same specific information is recorded in the specific information storage unit, the radio control unit is instructed to charge a mobile station having the specific information. The charging method according to claim 7, wherein
The accounting method according to claim 1, wherein the radio control unit performs radio communication via the unique information acquisition antenna and radio communication via the accounting processing antenna in a time-sharing manner. A unique information acquisition antenna installed on a toll road, and a billing processing antenna installed on the toll road downstream of the unique information acquisition antenna and having a wider communication area than the specific information acquisition antenna; A computer to communicate with
The mobile station that has entered the communication area of the specific information acquisition antenna performs radio communication with the mobile station via the specific information acquisition antenna to acquire the specific information of the mobile station and enters the communication area of the charging processing antenna. The mobile station obtains unique information of the mobile station by performing wireless communication with the mobile station through the charging processing antenna, and the instruction through the charging processing antenna by instructing the mobile station to be charged A wireless control unit that performs wireless communication with the received mobile station and transmits / receives charging processing information,
The unique information acquired by the wireless control unit via the unique information acquisition antenna is recorded in a unique information storage unit, and the same unique information as the unique information acquired by the wireless control unit via the charging processing antenna is stored. When recorded in the unique information storage unit, a program for functioning as a billing processing unit that instructs the radio control unit to charge a mobile station having the unique information as a billing target. The program according to claim 9, wherein
The radio control unit performs time division on radio communication via the unique information acquisition antenna and radio communication via the accounting processing antenna.

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