JP2011175474A - Parked vehicle management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a parked vehicle management system capable of managing vehicles within a parking lot using narrow band radio communication in a small-scale parking lot. <P>SOLUTION: Firstly, the unique number of a vehicle mounted device 20 which is mounted on a vehicle B1 entering the parking lot is acquired when the vehicle enters the parking lot, then it is acquired when it parks at a parking space. Then determination is made whether or not these two unique numbers agree with each other at the parking at the parking space, and the vehicle which is identified by the unique number is determined as being parked at the parking space when these unique numbers agree with each other. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a parked vehicle management system that manages, for example, a vehicle that has entered a parking lot.

  Currently, small parking lots such as coin parking are increasing in the city. Generally, in a small-scale parking lot, a car stop is installed for each parking space, and this car stop is raised when a vehicle is parked in the parking space. When leaving, the passenger goes to the checkout machine, enters the number of the parking space where his vehicle is stopped, into the clearing machine, and settles with a bill or a credit card. As a result, the car stop falls and the delivery is permitted.

  As described above, in a general small-scale parking lot, a passenger needs to go to the checkout machine to make a payment, which is troublesome. Therefore, there is a need for a system that manages vehicles in a parking lot by using wireless communication such as DSRC (Dedicated Short Range Communication) (see, for example, Patent Document 1).

  However, in current small-scale parking lots, it is impossible to employ a system having a structure like a conventional ETC (Electronic Toll Collection) gate composed of an entrance gate and an exit gate due to space restrictions. In addition, even if a narrow area wireless communication such as DSRC is launched into a parking lot and a billing process is performed when a vehicle enters the radio wave range, the radio wave leaks due to reflection by the structure, etc. There is a risk of erroneous charges for vehicles passing near the parking lot. On the other hand, it is possible to attach a radio wave absorber to the structure in order to suppress reflection of radio waves, but the radio wave absorber is expensive and requires construction work. Absent.

JP 2009-110153 A

  As described above, in a small-scale parking lot, there is a demand for a parked vehicle management system that manages the vehicles in the parking lot using wireless communication such as DSRC.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a parked vehicle management system capable of managing vehicles in a parking lot using narrow area wireless communication in a small-scale parking lot. is there.

  In order to achieve the above object, a parked vehicle management system according to the present invention transmits a radio signal for narrow area communication to a parking lot having a plurality of parking spaces in which the vehicle can be parked, thereby receiving the radio wave A narrow area communication unit that reads a unique number of an on-vehicle device mounted on a vehicle existing in the vehicle, and a vehicle stop that is installed in each of the plurality of parking spaces and generates a detection signal when it senses that the vehicle has stopped in the parking space And a first communication control for causing the narrow area communication unit to read the unique number at a preset cycle, and a second communication for causing the narrow area communication part to read the unique number in response to the sensing signal. A communication control unit that performs control, a storage unit that stores a first unique number read by the narrow-area communication unit in accordance with the first communication control, and a narrower in accordance with the second communication control. In the regional communication department When the second unique number is read, it is determined whether the first unique number stored in the storage unit matches the second unique number, and the first and second unique numbers are determined. And a determination unit that determines that a vehicle equipped with the vehicle-mounted device having the matched unique number is parked in the parking space when the two unique numbers match.

  In the parked vehicle management system configured as described above, the unique number of the vehicle-mounted device mounted on the vehicle that has entered the parking lot is first acquired when entering the parking lot, and then acquired when the vehicle stops in the parking space. Then, it is determined whether or not these two unique numbers match when the parking space stops. When these unique numbers match, it is determined that the vehicle identified by this unique number has been parked in the parking space. Thereby, it becomes possible to accurately enter the parked vehicle after entering the parking lot.

  According to the present invention, it is possible to provide a parked vehicle management system capable of managing vehicles in a parking lot using narrow area wireless communication in a small-scale parking lot.

It is a figure which shows the structure of the parked vehicle management system which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the parked vehicle management system of FIG. 1, and an onboard equipment. It is a block diagram which shows the function structure of CPU of FIG. It is a flowchart which shows the process of CPU of FIG. 2 at the time of determining that the vehicle parked in the parking space. It is a flowchart which shows the process of CPU of FIG. 2 when a vehicle leaves. It is a figure of the parked vehicle management system for demonstrating the flowchart of FIG. 5 concretely. It is a flowchart which shows the other process of CPU of FIG. 2 at the time of determining that the vehicle parked in the parking space. It is a figure of the parked vehicle management system for demonstrating the flowchart of FIG. It is a schematic diagram which shows the structure of the parked vehicle management system concerning the 2nd Embodiment of this invention. It is a block diagram which shows the structure of the parked vehicle management system of FIG. 9, and an onboard equipment. It is a block diagram which shows the function structure of CPU of FIG. It is a flowchart which shows the process of CPU of FIG. 10 at the time of judging that the vehicle parked in the parking space.

  Hereinafter, embodiments of a parked vehicle management system according to the present invention will be described in detail with reference to the drawings.

[First Embodiment]
FIG. 1 is a schematic diagram showing a configuration of a parked vehicle management system 10 according to the first embodiment of the present invention. As FIG. 1 shows, the parked vehicle management system 10 is installed in a parking lot provided with parking spaces S1 to S4. The parked vehicle management system 10 includes a DSRC (Dedicated Short Range Communication) antenna 11 installed in or near a parking lot, a DSRC radio device 12, and a car stop device 13-1 installed for each of the parking spaces S1 to S4. 13-4. Moreover, the vehicle-mounted device 20 capable of communication by DSRC is mounted on the vehicle.

  FIG. 2 is a block diagram showing a schematic configuration of the parked vehicle management system 10 and the vehicle-mounted device 20 according to the first embodiment of the present invention.

  The vehicle stoppers 13-1 to 13-4 include a vehicle sensor made of, for example, a metal sensor and a vehicle stopper. The vehicle sensor is installed so as to detect the vehicle when the vehicle is stopped across the stop. The vehicle stopping devices 13-1 to 13-4 output a detection signal to the DSRC radio device 12 when the presence of the vehicle is detected by the vehicle sensor. The car stoppers 13-1 to 13-4 raise the car stopper and prevent the vehicle from leaving when a certain time has elapsed after the presence of the vehicle is detected by the vehicle sensor. In addition, you may make it the vehicle stop apparatus 13-1 to 13-4 raise a vehicle stop device according to the instruction | indication from the DSRC radio | wireless apparatus 12. FIG. In addition, the car stop devices 13-1 to 13-4 release the car stop device according to the release signal from the DSRC radio device 12 so that the vehicle can leave.

  The DSRC antenna 11 transmits a DSRC (narrow area communication) radio wave to the parking lot in accordance with an instruction from the DSRC radio device 12, thereby forming a communication area A <b> 1 that is a DSRC radio wave area in the parking lot.

  The DSRC radio apparatus 12 includes a communication unit 121, a storage unit 122, and a CPU (Central Processing Unit) 123.

  The communication unit 121 communicates with the vehicle-mounted device 20 that has entered the communication area A <b> 1 via the DSRC antenna 11 under the control of the CPU 123.

  The CPU 123 controls the operation of the DSRC wireless device 12. FIG. 3 is a block diagram showing a functional configuration of the CPU 123 according to the first embodiment of the present invention. The CPU 123 in FIG. 3 includes a communication control unit 1231, a memory management unit 1232, a determination unit 1233, a charging processing unit 1234, and a car stop device control unit 1235.

  The communication control unit 1231 performs first and second controls on the communication unit 121. The first control is to control the communication unit 121 so that a communication request signal (polling signal) is transmitted from the DSRC antenna 11 at a preset period. The second control is to control the communication unit 121 so that the communication request signal is transmitted from the DSRC antenna 11 when the sensing signals are received from the car stopping devices 13-1 to 13-4.

  The memory management unit 1232 manages the storage unit 122. That is, the memory management unit 1232 causes the storage unit 122 to store the first unique number acquired by the first control and the second unique number acquired by the second control. In addition, the memory management unit 1232 erases the first and second unique numbers stored in the storage unit 122 in a predetermined case. Further, the memory management unit 1232 causes the storage unit 122 to store the identification number of the vehicle stopping device that has output the sensing signal.

  When the second unique number is acquired in accordance with the sensing signals from the car stopping devices 13-1 to 13-4, the determining unit 1233 and the first unique number stored in the storage unit 122. It is determined whether or not the number matches. If they match, it is determined that the vehicle identified by this unique number has parked in the parking space.

  In addition, when the vehicle-mounted device 20 is activated at the time of delivery and the determination unit 1233 obtains the third unique number corresponding to the communication request signal from the activated vehicle-mounted device 20, the vehicle determined to be parked in the parking space. It is determined whether or not the second unique number matches the third unique number.

  When the determination unit 1233 determines that the second unique number and the third unique number match, the charging processing unit 1234 acquires the time when the second unique number is acquired and the time when the third unique number is acquired. The parking time of the vehicle is calculated from the above. The charging processing unit 1234 calculates a parking fee from the calculated parking time. The billing processing unit 1234 provides information such as a parking fee to the vehicle-mounted device 20 via the communication unit 121, and causes the vehicle occupant to settle the parking fee within the vehicle. At this time, the charging processing unit 1234 may perform processing so that settlement according to EMV is possible.

  When the payment of the parking fee via the DSRC radio device 12 is completed, the car stop device control unit 1235 gives the car stop devices 13-1 to 13-4 a release signal so as to release the car stop device of the vehicle for which payment has been completed. Is output.

  The vehicle-mounted device 20 is a vehicle-mounted device used for an ETC (Electronic Toll Collection) system on a toll road, for example. In the ETC system, 5.8 GHz active two-way communication DSRC is used.

  The vehicle-mounted device 20 includes a DSRC unit 21 and a car navigation unit 22. The DSRC unit 21 and the car navigation unit 22 are connected by a communication cable. The DSRC unit 21 includes an antenna 211, a communication unit 212, a CPU 213, a memory 214, and a card interface 215.

  When entering the communication area A1, the communication unit 212 performs wireless communication with the DSRC wireless device 12 via the antenna 211.

  The memory 214 stores the vehicle-mounted device ID of the vehicle-mounted device 20. For example, an EMV card is inserted into the card interface 215. The card interface 215 reads the card number of the inserted EMV card. This card number is output to the memory 214 and stored. Here, the EMV card is a credit card capable of performing settlement in conformity with EMV.

  When the CPU 213 receives the communication request signal from the DSRC wireless device 12, the CPU 213 reads either the vehicle-mounted device ID or the card number from the memory 214 as the unique number of the vehicle-mounted device 20. The CPU 213 controls the communication unit 213 to transmit the read unique number from the antenna 211.

  In addition, when the vehicle-mounted device 20 is activated, the CPU 213 notifies the DSRC radio device 12 of an activation signal. In addition, when the CPU 213 receives information such as a parking fee from the DSRC wireless device 12, the CPU 213 outputs information such as a parking fee to the car navigation 22.

  The car navigation system 22 includes a guide unit such as a display unit and a voice output unit, and displays information received from the DSRC unit 21 on the display unit, or notifies the passenger by voice from the voice output unit.

  Next, the parked vehicle determination operation and the parking fee charging operation by the parked vehicle management system 10 configured as described above will be described in accordance with the processing procedure of the CPU 123.

  FIG. 4 is a flowchart showing the processing of the CPU 123 when determining that the vehicle is parked in the parked vehicle management system 10 according to the first embodiment of the present invention.

  The CPU 123 always causes the communication unit 121 to transmit a communication request signal (first control by the communication control unit 1231), and constantly monitors the approach of the vehicle to the parking lot. The CPU 123 stores the unique number returned in response to this communication request signal in the storage unit 122 as the first unique number.

  The CPU 123 determines whether or not there is a sensing signal from the car stopping devices 13-1 to 13-4 (step S41). When there is a sensing signal from the car stopping devices 13-1 to 13-4 (Yes in step S41), the CPU 123 stores the identification number of the car stopping device that has output the sensing signal in the storage unit 122, and requests the communication unit 121 to communicate. A signal is transmitted (second control by the communication control unit 1231) (step S42). The CPU 123 stores the unique number returned in response to the communication request signal in the storage unit 122 as the second unique number (step S43).

  When there is no sensing signal from the car stopping devices 13-1 to 13-4 (No in step S41), it is determined whether or not a certain period has elapsed (step S44). When a certain period has elapsed (Yes in step S44), the first unique number stored in the storage unit 122 is deleted (step S45), and the process is terminated. If the certain period has not elapsed (No in step S44), the process in step S41 is repeated until a sensing signal is received.

  Subsequently, the CPU 123 determines whether or not the second unique number returned in step S43 matches the first unique number stored in the storage unit 122 (step S46). When the first unique number matches the second unique number (Yes in step S46), the CPU 123 determines that the vehicle identified by this unique number has parked in the parking space (step S47), and performs the process. finish. If the first unique number and the second unique number do not match (No in step S46), the CPU 123 ends the process.

  In FIG. 1, the case where vehicle B1 carrying onboard equipment 20 enters communication area A1 formed in a parking lot and stops in parking space S1 will be specifically described. The vehicle-mounted device 20 receives the communication request signal from the DSRC antenna 11 and transmits its own unique number N1 to the DSRC radio apparatus 12. The CPU 123 stores the unique number N1 in the storage unit 122 as the first unique number.

  When the vehicle B1 stops in the parking space S1, the car stop device 13-1 installed in the parking space S1 senses the vehicle B1 with a vehicle sensor and outputs a sensing signal to the DSRC radio device 12. CPU123 will memorize | store the identification number of the vehicle stop apparatus 13-1 in the memory | storage part 122, and make the communication part 121 transmit a communication request signal, if a sensing signal is received. When receiving the communication request signal from the DSRC antenna 11, the vehicle-mounted device 20 transmits the unique number N <b> 1 to the DSRC wireless device 12. The CPU 123 stores the unique number N1 in the storage unit 122 as the second unique number.

  The CPU 123 compares the first unique number stored in the storage unit 122 with the acquired second unique number. The CPU 123 determines that the vehicle B1 is parked in the parking space S1 in which the car stop device 13-1 is installed because both the first unique number and the second unique number match with the unique number N1. .

  FIG. 5 is a flowchart showing the processing of the CPU 123 when the vehicle leaves in the parked vehicle management system 10 according to the first embodiment of the present invention.

  CPU 123 causes communication unit 121 to transmit a communication request signal (first control by communication control unit 1231) (step S51). The CPU 123 determines whether or not the third unique number acquired from the activated vehicle-mounted device 20 according to the communication request signal matches the second unique number of the vehicle that is determined to be parked ( Step S52). When the third unique number and the second unique number match (Yes in step S52), the parking time and the time from the time when the second unique number is acquired and the time when the third unique number is acquired A parking fee is calculated (step S53).

  CPU123 outputs information, such as a parking fee, to the onboard equipment 20, and performs the process for making the passenger of vehicle B1 settle a parking fee (step S54). When the settlement is completed, the CPU 123 gives a release signal so as to release the car stop device to the car stop device provided in the parking space where the vehicle B1 is parked among the car stop devices 13-1 to 13-4 ( Step S55). After outputting the release signal, the CPU 123 deletes the first and second unique numbers stored in the storage unit 122 (step S56).

  In FIG. 6, the case where the vehicle B1 carrying the vehicle-mounted device 20 leaves the parking space S1 will be specifically described. First, the passenger gets into the vehicle B1 and starts the engine of the vehicle B1. Thereby, the onboard equipment 20 is started.

  Upon receiving the communication request signal, the activated vehicle-mounted device 20 transmits its own unique number N1 to the DSRC radio device 12. The CPU 123 acquires this unique number N1 as a third unique number.

  CPU123 reads the 2nd specific number of parked vehicle B1 from the memory | storage part 122, and compares this 2nd specific number with the acquired 3rd specific number. The CPU 123 determines the parking time from the acquisition time of the second unique number and the acquisition time of the third unique number because both the second unique number and the third unique number match with the unique number N1. Calculate the parking fee from this parking time. Then, the CPU 123 notifies the vehicle-mounted device 20 of information such as a parking fee, and performs processing for causing the passenger of the vehicle B1 to settle the parking fee.

  When the settlement is completed, the CPU 123 gives a release signal to the car stopping device 13-1 so as to release the car stopper. After outputting the release signal, the CPU 123 erases the unique number N1 stored as the first and second unique numbers in the storage unit 122.

  As described above, in the first embodiment, the second unique number acquired when parking in the parking space and the first unique number acquired when entering the communication area A1 are Compare when parked at the parking pace. When the first and second unique numbers match, it is determined that the vehicle identified by this unique number has been parked in the parking space. Thereby, it becomes possible to accurately enter the parked vehicle after entering the parking lot. That is, even when the unique number of the vehicle running behind the vehicle B1 as shown in FIG. 1 is read as the first unique number by entering the communication spot A2 caused by reflection or the like, The unique number is not read as the second unique number because the vehicle passes the road. That is, it is not determined that a vehicle that only passes through the vicinity of the parking lot is parked by mistake.

  Therefore, according to the parked vehicle management system according to the present invention, it is possible to manage the vehicles in the parking lot using the narrow area wireless communication in the small-scale parking lot.

  In the first embodiment, the determination unit 1233 determines that the vehicle identified by the unique number is parked in the parking lot when the first unique number and the second unique number match. However, it is not limited to this. For example, the determination unit 1233 determines that the first unique number and the second unique number match, and the same unique number as the determined unique number is detected by the first control after the determination. If not, it may be determined that the vehicle identified by this unique number has parked in the parking space. At this time, even if the determination unit 1233 determines that the first unique number and the second unique number match, the unique number determined to match by the first control after this determination When the same unique number is acquired, it is not determined that the vehicle identified by this unique number is parked.

  FIG. 7 is a flowchart showing other processing of the CPU 123 when determining that the vehicle is parked in the parked vehicle management system according to the first embodiment of the present invention. Steps up to step S46 in FIG. 7 are the same as those in the flowchart in FIG.

  When the first unique number and the second unique number match (Yes in step S46), the CPU 123 obtains the unique number determined to match in step S46 by the first control after the determination. It is determined whether or not it matches the first unique number (step S71). If the unique number determined to match in step S46 matches the first unique number acquired by the first control after the determination (Yes in step S71), the second number stored in step S43 is stored. The unique number is deleted from the storage unit 122 (step S72), and the process is repeated from step S41. If the unique number identical to the unique number determined to match in step S46 is not acquired by the first control after the determination (No in step S71), the vehicle identified by this unique number is parked in the parking lot. Is determined (step S73), and the process is terminated.

  In FIG. 8, when vehicle B2 carrying onboard equipment 20-1 is going to stop in parking space S2, the case where vehicle B3 carrying onboard equipment 20-2 exists in a parking lot is demonstrated concretely.

  First, the unique number N2 of the vehicle-mounted device 20-1 and the unique number N3 of the vehicle-mounted device 20-2 are stored in the storage unit 122 as the first unique number when entering the communication area A1.

  The vehicle stop device 13-2 installed in the parking space S2 detects the vehicle B2 stopped by the vehicle sensor, and outputs a detection signal to the DSRC radio device 12. When the CPU 123 receives the sensing signal, the CPU 123 stores the identification number of the car stopping device 13-2 in the storage unit 122, and transmits a communication request signal from the communication unit 121 by the second control.

  When receiving the communication request signal from the DSRC antenna 11, the vehicle-mounted devices 20-1 and 20-2 transmit the unique numbers N <b> 2 and N <b> 3 to the DSRC radio device 12, respectively. The CPU 123 stores the unique numbers N2 and N3 in the storage unit 122 as second unique numbers. Then, the CPU 123 determines whether or not the first unique number matches the second unique number. Here, the unique numbers N2 and N3 stored as the first unique numbers coincide with the unique numbers N2 and N3 stored as the second unique numbers.

  After determining that the unique numbers N2 and N3 stored as the first unique numbers match the unique numbers N2 and N3 stored as the second unique numbers, the CPU 123 determines the first number after the determination. The presence / absence of the first unique number acquired by the control is confirmed. Here, the operation of the vehicle-mounted device 20-1 stops when the vehicle B2 stops in the parking space S2 and stops the engine. On the other hand, the vehicle-mounted device 20-2 continues to operate even after the vehicle B2 stops. That is, only the unique number N3 of the vehicle-mounted device 20-2 is acquired in the first control after the match determination. The CPU 123 determines that the vehicle B2 having the unique number N2 that has not been acquired in the first control after the match determination is parked in the parking space S2, and uses the unique number N3 acquired in the first control after the match determination as the first number. Delete from the unique number of 2.

  Accordingly, when one vehicle is parked in the parking space, it is possible to accurately determine the parked vehicle even if another vehicle exists around the parking space.

[Second Embodiment]
FIG. 9 is a schematic diagram showing a configuration of the parked vehicle management system 30 according to the second embodiment of the present invention. In FIG. 9, parts common to FIG. The parked vehicle management system 30 includes a DSRC antenna 11 installed in or near a parking lot, a DSRC radio device 12, car stop devices 13-1 to 13-4 installed in each parking space, and radio wave emission source detection. A device 31 and a receiving antenna 32 are provided.

  FIG. 10 is a block diagram showing a schematic configuration of the parked vehicle management system 30 and the vehicle-mounted device 20 according to the second embodiment of the present invention.

  The receiving antenna 32 can receive DSRC radio waves that are always transmitted from the vehicle-mounted device 20 in substantially the same range as that of the DSRC antenna 11 (dotted line portion in FIG. 9).

  The radio wave emission source detection device 31 acquires position information of the vehicle-mounted device 20 in the parking lot from the radio wave received by the receiving antenna 32. The radio wave emission source detection device 31 outputs the acquired position information to the DSRC radio device 12.

  FIG. 11 is a block diagram showing a functional configuration of the CPU 124 according to the first embodiment of the present invention. The CPU 124 in FIG. 11 includes a communication control unit 1231, a memory management unit 1241, a determination unit 1242, a charging processing unit 1234, and a car stop device control unit 1235.

  The memory management unit 1241 manages the storage unit 122. That is, the memory management unit 1241 causes the storage unit 122 to store the first unique number acquired by the first control and the second unique number acquired by the second control. Further, the memory management unit 1241 erases the first and second unique numbers stored in the storage unit 122 in a predetermined case. In addition, the memory management unit 1241 causes the storage unit 122 to store the identification number of the vehicle stopping device that has output the sensing signal. The memory management unit 1241 stores the vehicle position information in the storage unit 122.

  When the second unique number is acquired in accordance with the sensing signals from the car stopping devices 13-1 to 13-4, the determination unit 1242 and the first unique number stored in the storage unit 122. It is determined whether or not the number matches. When the first and second unique numbers match, the position information stored in the storage unit 122 is referred to, and the position of the vehicle-mounted device 20 that has returned the second unique number is stored in the storage unit 122. It is determined whether or not the installed position of the vehicle stop device matches. When the position of the vehicle-mounted device 20 that has returned the second unique number matches the installation position of the car stop device stored in the storage unit 122, the determination unit 1242 determines that the vehicle identified by this unique number is a parking space. It is determined that the car has been parked.

  The determination unit 1242 activates the vehicle-mounted device 20 when leaving the vehicle, and obtains a third unique number corresponding to the communication request signal from the activated vehicle-mounted device 20, and determines that the vehicle has been stopped in the parking space. It is determined whether or not the second unique number matches the third unique number. When the second unique number and the third unique number match, the determination unit 1242 calculates the parking time of the vehicle from the time when the second unique number is obtained and the time when the third unique number is obtained. To do.

  Next, the parked vehicle determination operation by the parked vehicle management system 30 configured as described above will be described according to the processing procedure of the CPU 124.

  FIG. 12 is a flowchart showing the processing of the CPU 124 when determining that the vehicle is parked in the parked vehicle management system 30 according to the second embodiment of the present invention.

  The CPU 124 always causes the communication unit 121 to transmit a communication request signal (first control by the communication control unit 1231), and constantly monitors the approach of the vehicle to the parking lot. The CPU 124 stores the unique number returned in response to the communication request signal in the storage unit 122 as the first unique number. The radio wave emission source detection device 31 acquires position information in the parking lot of the vehicle-mounted device 20 from the radio wave received by the reception antenna 32 and outputs this position information to the DSRC radio device 12. The CPU 124 sequentially updates the position information stored in the storage unit 122 with the position information from the radio wave emission source detection device 31.

  The CPU 124 determines whether or not there is a sensing signal from the car stoppers 13-1 to 13-4 (step S121). When there is a sensing signal from the car stopping devices 13-1 to 13-4 (Yes in step S121), the CPU 124 stores the identification number of the car stopping device that has output the sensing signal in the storage unit 122, and requests the communication unit 121 to make a communication request. A signal is transmitted (second control by the communication control unit 1231) (step S122). The CPU 124 stores the unique number returned in response to the communication request signal in the storage unit 122 as the second unique number (step S123).

  If there is no sensing signal from the car stopping devices 13-1 to 13-4 (No in step S121), it is determined whether or not a certain period has elapsed (step S124). When a certain period of time has elapsed (Yes in step S124), the CPU 124 deletes the first unique number stored in the storage unit 122 (step S125) and ends the process. If the certain period has not elapsed (No in step S124), the process in step S121 is repeated until a sensing signal is received.

  Subsequently, the CPU 124 determines whether or not the second unique number returned in step S123 matches the first unique number stored in the storage unit 122 (step S126). When the first unique number and the second unique number match (Yes in step S126), the CPU 124 refers to the position information stored in the storage unit 122 and returns the second unique number. It is determined whether or not the position of the container 20 matches the installation position of the car stop device stored in the storage unit 122 (step S127). When the position of the vehicle-mounted device 20 that has returned the second unique number matches the installation position of the vehicle stop device stored in the storage unit 122 (Yes in step S127), the CPU 124 determines that the unique number is the same. It is determined that the vehicle identified by is parked in the parking space (step S128), and the process is terminated. If the position of the vehicle-mounted device 20 that has returned the second unique number does not match the installation position of the car stop device stored in the storage unit 122 (No in step S127), the CPU 124 determines that the unique is determined to match. The number is deleted from the second unique number (step S129), and the process ends.

  In FIG. 9, when vehicle B2 carrying onboard equipment 20-1 is going to stop in parking space S2, the case where vehicle B3 carrying onboard equipment 20-2 exists in a parking lot is demonstrated concretely.

  First, the unique number N2 of the vehicle-mounted device 20-1 and the unique number N3 of the vehicle-mounted device 20-2 are stored in the storage unit 122 as the first unique number when entering the communication area A1.

  The vehicle stop device 13-2 installed in the parking space S2 detects the vehicle B2 stopped by the vehicle sensor, and outputs a detection signal to the DSRC radio device 12. When the CPU 124 receives the sensing signal, the CPU 124 stores the identification number of the car stopping device 13-2 in the storage unit 122 and causes the communication unit 121 to transmit a communication request signal by the second control.

  When receiving the communication request signal from the DSRC antenna 11, the vehicle-mounted devices 20-1 and 20-2 transmit the unique numbers N <b> 2 and N <b> 3 to the DSRC radio device 12, respectively. The CPU 124 stores the unique numbers N2 and N3 in the storage unit 122 as second unique numbers. Then, the CPU 124 determines whether or not the first unique number matches the second unique number. Here, the unique numbers N2 and N3 stored as the first unique numbers coincide with the unique numbers N2 and N3 stored as the second unique numbers.

  When the CPU 124 determines that the unique numbers N2 and N3 stored as the first unique numbers match the unique numbers N2 and N3 stored as the second unique numbers, the CPU 124 stores them in the storage unit 122. Whether or not the positions of the vehicle-mounted devices 20-1 and 20-2 that have returned the second unique number and the installation position of the vehicle stop device 13-2 stored in the storage unit 122 are referred to Determine whether. The CPU 124 parks the vehicle B2 in the parking space S2 because the position of the vehicle-mounted device 20-1 that has returned the second unique number matches the installation position of the car stop device 13-2 stored in the storage unit 122. Judge that On the other hand, the CPU 124 deletes the unique number N3 from the second unique number because the position of the vehicle-mounted device 20-2 that has returned the second unique number is different from the installation position of the car stopper 13-2.

  The charging operation for the parking fee by the CPU 124 is the same as the operation by the CPU 123 in the first embodiment.

  As described above, in the second embodiment, the position information of the vehicle-mounted device that has transmitted the radio wave is acquired by the radio wave emission source detection device 31. When the first unique number and the second unique number match, the DSRC radio device 12 refers to this position information, and the position of the vehicle when the second unique number is acquired, and the installation of the car stop device Compare with position. Then, the DSRC radio device 12 determines that the vehicle identified by the unique number determined to match when the vehicle position when the second unique number is acquired matches the installation position of the car stop device. It is determined that the car has been parked at. Accordingly, when one vehicle is parked in the parking space, it is possible to accurately determine the parked vehicle even if another vehicle exists around the parking space.

  Also in the second embodiment, the same billing process as in the first embodiment is performed. This makes it possible to charge a parking fee only for a vehicle that is determined to be parked.

  Therefore, according to the parked vehicle management system according to the present invention, it is possible to manage the vehicles in the parking lot using the narrow area wireless communication in the small-scale parking lot.

[Other Embodiments]
The present invention is not limited to the above embodiments. For example, in each of the above embodiments, when the first and second unique numbers match, the CPUs 123 and 124 have determined that the vehicle identified by the matched unique number has been parked in the parking lot. However, the present invention is not limited to this. For example, after determining that the vehicle identified by the matched unique number has been parked in the parking lot, the CPUs 123 and 124 may send a comment such as “Give me” to the vehicle.

  In each of the above embodiments, when the second unique number and the third unique number coincide with each other, the CPUs 123 and 124 obtain the time when the second unique number is obtained and the third unique number. The parking time is calculated from the time, and the parking fee is calculated based on the parking time. However, the present invention is not limited to this. For example, when the parking fee is a fixed amount, the CPUs 123 and 124 may impose a fixed parking fee when the second unique number and the third unique number match.

  Moreover, you may make it a passenger | crew send further the instruction | indication signal to the effect of inputting the number of a parking space. Thereby, CPU123,124 becomes possible [grasping | ascertaining the parking position of a vehicle more correctly], and the certainty of an accounting process will improve.

  Moreover, in each said embodiment, the onboard equipment 20 was started at the time of delivery, and the example which made the specific number which the started onboard equipment 20 output according to the communication request signal used as a 3rd specific number was demonstrated. However, the above embodiments are not limited to this. For example, the in-vehicle device 20 outputs an activation signal at the time of activation, and the communication control unit 1231 performs communication so that a communication request signal is transmitted from the DSRC antenna 11 when the activation signal from the on-vehicle device 20 is received. The third control for controlling the unit 121 may be performed.

  Moreover, although each said embodiment demonstrated the case where only one DSRC antenna 11 was installed in the parking lot, a plurality of DSRC antennas are installed in the parking lot, and a communication area is formed by a plurality of DSRC antennas. However, it can be similarly implemented.

  Furthermore, the present invention can be embodied by modifying the constituent elements without departing from the spirit of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

DESCRIPTION OF SYMBOLS 10 ... Parking vehicle management system 11 ... DSRC antenna 12 ... DSRC radio | wireless apparatus 121 ... Communication part 122 ... Memory | storage part 123,124 ... CPU
1231: Communication control unit 1232, 1241 ... Memory management unit 1233, 1242 ... Judgment unit 1234 ... Charge processing unit 1235 ... Car stop device control unit 13-1 to 13-4 ... Car stop device 20 ... On-vehicle device 21 ... DSRC unit 211 ... Antenna 212 ... Communication unit 213 ... CPU
214 ... Memory 215 ... Card interface 22 ... Car navigation 31 ... Radio wave emission source detection device 32 ... Receiving antennas A1, A2 ... Radio areas B1, B2, B3 ... Vehicles S1-S4 ... Parking space

Claims (9)

Narrow area that reads the unique number of the vehicle-mounted device mounted on the vehicle that exists in a position where the radio wave can be received by transmitting a radio wave of narrow area communication to a parking lot having a plurality of parking spaces where the vehicle can park A communication department;
A car stop device that is installed for each of the plurality of parking spaces and generates a sensing signal when it senses that a vehicle has stopped in the parking space;
First communication control for causing the narrow area communication unit to read the unique number at a preset period, and second communication control for causing the narrow area communication unit to read the unique number in response to the sensing signal. A communication control unit to perform,
A storage unit for storing a first unique number read by the narrow area communication unit in accordance with the first communication control;
When the second unique number is read by the narrow area communication unit according to the second communication control, the first unique number and the second unique number stored in the storage unit are A determination unit that determines whether or not they match, and determines that a vehicle equipped with the vehicle-mounted device having the matched unique number is parked in the parking space when the first and second unique numbers match; A parking vehicle management system comprising:   The determination unit, when the matched unique number is not read by the first communication control after the decision that the match is made, the vehicle equipped with the vehicle-mounted device having the matched unique number is parked in the parking space. The parked vehicle management system according to claim 1, wherein the parked vehicle management system is determined to have been. A radio wave emission source detecting device for receiving radio waves from the vehicle-mounted device and detecting a position of the emission source of the radio waves;
The determination unit refers to the position of the radio wave transmission source, and when the position where the second unique number is read and the position of the parking space are the same, the vehicle-mounted device having the matched unique number The parked vehicle management system according to claim 1, wherein the mounted vehicle is determined to be parked in the parking space. The storage unit further stores the second unique number,
The narrow area communication unit reads a third unique number from the onboard device activated in accordance with the first communication control,
The determination unit determines whether or not the second unique number stored in the storage unit matches the third unique number when the third unique number is read. The parked vehicle management system according to any one of claims 1 to 3. When the communication control unit receives an activation signal indicating that the vehicle-mounted device has been activated, the communication control unit further performs third communication control that causes the narrow area communication unit to read the unique number,
The storage unit further stores the second unique number,
The narrow area communication unit reads a third unique number from the activated vehicle-mounted device according to the third communication control,
The determination unit determines whether or not the second unique number stored in the storage unit matches the third unique number when the third unique number is read. The parked vehicle management system according to any one of claims 1 to 3.   When the determination unit determines that the second and third unique numbers match, the parking time and the parking fee are calculated from the acquisition time of the second unique number and the acquisition time of the third unique number. The parked vehicle management system according to claim 4, further comprising a billing processing unit that calculates and bills the on-board device for the parking fee.   The parked vehicle management system according to claim 6, wherein the billing processing unit performs billing processing according to EMV for the on-vehicle device.   When the determination unit determines that a vehicle equipped with the vehicle-mounted device having the matched unique number is parked in the parking space, the vehicle control device further controls the vehicle stop device and prohibits the vehicle from being released. The parked vehicle management system according to any one of claims 1 to 3, further comprising:   9. The parked vehicle management system according to claim 8, wherein when the billing process is completed, the car stop device control unit releases the car stop device so that the vehicle can be delivered.

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