JP2008176412A - Vehicle theft monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle theft monitoring system enabling securely watching whether or not a vehicle is theft with a simple structure. <P>SOLUTION: A first vehicle RFID tag 20 is designed to enable transmission and reception of a radio wave having a predetermined frequency when a light-shielding sheet 2 is attached to a window shield glass F. A second vehicle RFID tag 21 is designed to enable transmission and reception of the radio wave having the predetermined frequency when the light-shielding sheet 2 is not attached to the window shield glass F. If the first vehicle RFID tag 20 and an antenna portion 30 toward the vehicle can transmit and receive the radio wave of the predetermined frequency, a controller 61 decides that a vehicle C is in a non-theft state, while if the second vehicle RFID tag 21 and the antenna portion 30 toward the vehicle can transmit and receive the radio wave of the predetermined frequency, the controller 61 decides that a vehicle C is in a theft state. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle theft monitoring system, and more particularly to a vehicle theft monitoring system using an RFID (Radio frequency identification) tag.

  In recent years, various systems using RFID tags have attracted attention. Here, the RFID tag includes an IC chip and an antenna module. Identification information is stored in the IC chip. The RFID tag receives radio waves from a reading device called a reader, adds identification information stored in an IC chip, and transmits radio waves (hereinafter referred to as response radio waves) to the reading device (for example, Japanese Patent Application Laid-Open No. 2005-2005). -301443, JP-A-2006-042059).

  Various systems using RFID tags are expected to be applied to various applications by taking advantage of non-contact.

For example, Japanese Patent Laid-Open No. 2003-132426 discloses an article storage system that checks whether a bicycle is a genuine user when taking out a bicycle parked at a bicycle parking lot and prevents theft in advance. It is disclosed. Japanese Patent Laid-Open No. 2003-248732 discloses an article management system for confirming whether or not a bicycle key is locked when entering or leaving a bicycle parking lot. Japanese Patent Laid-Open No. 2003-248900 discloses an article management system that reads an RFID tag attached to a bicycle when entering or leaving a bicycle parking lot, and performs a process of opening a gate if the user is a genuine user. ing. Japanese Patent Laid-Open No. 2005-038324 discloses a system that automatically reads the RFID tag attached to the vehicle and automatically settles the parking fee when entering or leaving the parking lot. Further, Japanese Patent Application Laid-Open No. 2005-157776 discloses a system that reads an RFID tag attached to a vehicle and monitors the entrance / exit of the vehicle to / from the parking lot when entering / leaving the parking lot.
Japanese Patent Laying-Open No. 2005-301443 JP 2006-042059 A JP 2003-132426 A JP 2003-248732 A JP 2003-248900 A JP 2005-038324 A JP 2005-157776 A

  However, in the above Japanese Patent Application Laid-Open No. 2003-132426, after reading user information from an RFID tag provided on a bicycle, it is monitored whether the bicycle is taken out by a sensor or the like, for example. For this reason, for example, if a bicycle is taken out after placing an article other than a bicycle within the detection range of the sensor, the sensor recognizes the article as a bicycle, and therefore it is not possible to sufficiently monitor the presence or absence of a bicycle theft.

  Moreover, in said Unexamined-Japanese-Patent No. 2003-248732, at the time of entrance / exit, it is monitored whether the bicycle is locked from the RFID tag provided in the key of the bicycle. For this reason, for example, if a bicycle key is handed over to a third party, the presence or absence of theft of the bicycle cannot be sufficiently monitored.

  Furthermore, in the above Japanese Patent Laid-Open No. 2003-248900, the presence or absence of theft of the bicycle is monitored by comparing the owner's RFID tag with an RFID tag provided on the bicycle. For this reason, for example, if the owner's RFID tag is in the hands of a third party, it is not possible to sufficiently monitor the bicycle for theft.

  Note that the above-mentioned JP-A-2003-132426, JP-A-2003-248732, and JP-A-2003-248900 are all intended for bicycles parked in a bicycle parking lot.

  On the other hand, the above Japanese Patent Application Laid-Open Nos. 2005-038324 and 2005-157776 disclose systems that target vehicles parked in a parking lot, but can monitor the presence or absence of vehicle theft. A vehicle theft monitoring system is not disclosed.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle theft monitoring system that can reliably monitor the presence or absence of a vehicle theft with a simple configuration.

  To achieve the above object, a vehicle theft monitoring system according to the present invention includes a light shielding sheet that can be attached to a windshield glass of a vehicle, a vehicle RFID tag provided on the light shielding sheet, the vehicle RFID tag, and a predetermined A vehicle theft monitoring system comprising: a vehicle antenna unit that transmits and receives radio waves of a frequency; and a control unit that controls radio waves transmitted and received at a predetermined frequency via the vehicle antenna unit, and monitors the vehicle parked in a parking lot When the light shielding sheet is attached to the windshield glass, the vehicle RFID tag is designed to be able to transmit and receive radio waves of a predetermined frequency. If it is not attached to the shield glass, it will be impossible to transmit and receive radio waves of the specified frequency. The control unit can detect whether or not the vehicle RFID tag and the vehicle antenna unit can transmit and receive radio waves of a predetermined frequency. If it is impossible to transmit / receive in a non-theft state, it is determined that the vehicle is in a theft state.

  According to the vehicle theft monitoring system of the present invention, when the light shielding sheet is attached to the windshield glass, in consideration of the influence of the windshield glass that is a dielectric, the vehicle RFID tag is Since it is designed to resonate with radio waves of a predetermined frequency, the vehicle RFID tag can transmit / receive radio waves of a predetermined frequency to / from the vehicle antenna unit. Therefore, when the vehicle RFID tag and the vehicle antenna section can transmit and receive radio waves of a predetermined frequency, the light shielding sheet is attached to the windshield glass. Since the front view from the driver's seat is hindered by the light shielding sheet, the vehicle cannot be driven from the driver's seat. Therefore, the control unit determines that the vehicle is in a non-theft state. On the other hand, when the light shielding sheet is not attached to the windshield glass, on the other hand, the vehicle RFID tag is not affected by the windshield glass, which is a dielectric, and the vehicle RFID tag receives radio waves of a predetermined frequency from the vehicle antenna section. Therefore, the vehicular RFID tag cannot transmit / receive a radio wave having a predetermined frequency to / from the vehicular antenna unit. For this reason, when it is impossible for the vehicle RFID tag and the vehicle antenna unit to transmit and receive radio waves of a predetermined frequency, the windshield glass is not attached with the light shielding sheet. Since the front view from the driver's seat is good due to the windshield glass, the vehicle can be driven from the driver's seat. Therefore, the control unit determines that the vehicle is in a stolen state. As a result, it is possible to realize a vehicle theft monitoring system that can reliably monitor the presence or absence of the vehicle with a simple configuration.

  To achieve the above object, a vehicle theft monitoring system according to the present invention includes a light shielding sheet that can be attached to a windshield glass of a vehicle, a vehicle RFID tag provided on the light shielding sheet, the vehicle RFID tag, and a predetermined A vehicle theft monitoring system comprising: a vehicle antenna unit that transmits and receives radio waves of a frequency; and a control unit that controls radio waves transmitted and received at a predetermined frequency via the vehicle antenna unit, and monitors the vehicle parked in a parking lot And the said RFID tag for vehicles has two, the 1st RFID tag for vehicles, and the 2nd RFID tag for vehicles, and the said 1st RFID tag for vehicles has the said light shielding sheet attached to the said windshield glass. In the case, the second RFID tag for a vehicle is designed so as to be able to transmit and receive radio waves of a predetermined frequency. Is designed to be able to transmit and receive radio waves of a predetermined frequency when the light shielding sheet is not attached to the windshield glass, and the control unit is designed for the vehicle first RFID tag and the vehicle It is possible to detect whether or not the antenna unit can transmit and receive radio waves of a predetermined frequency, and whether or not the second RFID tag for vehicles and the antenna unit for vehicles can transmit and receive radio waves of a predetermined frequency. If the state can be detected and the first RFID tag for a vehicle and the antenna unit for the vehicle can transmit and receive radio waves of a predetermined frequency, it is determined that the vehicle is in a non-theft state, and the vehicle If the second RFID tag for use and the vehicle antenna section can transmit and receive radio waves of a predetermined frequency, it is determined that the vehicle is stolen. And features.

  According to the vehicle theft monitoring system of the present invention, when the light shielding sheet is attached to the windshield glass, the first RFID tag for a vehicle is arranged from the vehicle antenna unit in consideration of the influence of the windshield glass as a dielectric. Therefore, the first RFID tag for a vehicle can transmit and receive a radio wave of a predetermined frequency with the antenna unit for the vehicle. For this reason, when the 1st RFID tag for vehicles and the antenna part for vehicles can transmit and receive the electromagnetic wave of a predetermined frequency, it is in the state where the light shielding sheet is attached to the windshield glass. Since the front view from the driver's seat is hindered by the light shielding sheet, the vehicle cannot be driven from the driver's seat. Therefore, the control unit determines that the vehicle is in a non-theft state. On the other hand, when the light shielding sheet is not attached to the windshield glass, on the other hand, it is not affected by the windshield glass, which is a dielectric, and the second RFID tag for vehicles has a predetermined frequency from the antenna unit for vehicles. Since it is designed to resonate with radio waves, the second RFID tag for vehicles can transmit and receive radio waves of a predetermined frequency with the antenna unit for vehicles. For this reason, when the 2nd RFID tag for vehicles and the antenna part for vehicles can transmit and receive the electric wave of a predetermined frequency, it is in the state where the light shielding sheet is not attached to windshield glass. Since the front view from the driver's seat is good due to the windshield glass, the vehicle can be driven from the driver's seat. Therefore, the control unit determines that the vehicle is in a stolen state. As a result, it is possible to realize a vehicle theft monitoring system that can reliably monitor the presence or absence of the vehicle with a simple configuration.

  In the theft monitoring system according to the present invention, a portable card key having a card key RFID tag associated with the vehicle RFID tag, a radio wave having a predetermined frequency with the card key RFID tag in the parking lot. A card key antenna unit for transmitting and receiving the card key, and the control unit determines whether the card key RFID tag and the card key antenna unit are capable of transmitting and receiving radio waves of a predetermined frequency. It is preferable to make it possible to determine whether or not the vehicle exists in the parking lot.

  According to the above configuration, the control unit determines whether or not the card key exists in the parking lot based on whether or not the card key RFID tag and the card key antenna unit can transmit and receive radio waves of a predetermined frequency. To do. Thereby, the control part can switch the presence or absence of the monitoring of a stolen state, for example according to whether a card key exists in a parking lot.

  In the theft monitoring system according to the present invention, the control unit determines that the card key does not exist in the parking lot, and shifts from a transmission / reception state between the vehicle RFID tag and the vehicle antenna unit to a theft state. When it is determined that there is a vehicle, it is preferable that a signal for restricting the leaving of the vehicle is generated.

  According to the above configuration, when the control unit determines that the card key does not exist in the parking lot and determines that the card key is in a stolen state, the control unit generates a signal for restricting vehicle exit. Since a signal for restricting vehicle exit (participation) is generated, the control unit displays, for example, that the vehicle cannot be exited, or closes the entrance gate of the vehicle to restrict the vehicle exit. Can be directed. Therefore, the vehicle can be prevented from being stolen.

  In the theft monitoring system according to the present invention, the control unit determines that the card key does not exist in the parking lot, and shifts from a transmission / reception state between the vehicle RFID tag and the vehicle antenna unit to a theft state. When it is determined that there is, it is preferable that a signal for generating an alarm be generated.

  According to the said structure, a control part produces | generates the signal for issuing a warning, when it is judged that a card key does not exist in a parking lot, and it is judged that it is in a stolen state. Since a signal for generating an alarm is generated, it is possible to notify a parking lot manager, for example, that the vehicle may have been stolen (hereinafter also referred to simply as “theft”).

  In the theft monitoring system according to the present invention, the control unit determines that the card key does not exist in the parking lot, and shifts from a transmission / reception state between the vehicle RFID tag and the vehicle antenna unit to a theft state. When it is determined that there is, it is preferable that a signal for notifying the user of the vehicle that the vehicle is stolen is generated.

  According to the above configuration, when the control unit determines that the card key does not exist in the parking lot and determines that the card key is stolen, the controller notifies the vehicle user that the vehicle is stolen. To generate a signal for Since a signal for notifying that the vehicle is stolen is generated, the user of the vehicle can know that the vehicle may have been stolen.

  The theft monitoring system according to the present invention further includes a database that stores management information associated with the card key RFID tag, and an issuing unit that outputs the management information to a readable medium. When the card key antenna unit receives radio waves of a predetermined frequency from the card key RFID tag, the management information stored in the database is read, and the issuing unit reads the management information read by the control unit. It is preferable that the data is output to a readable medium.

  According to the above configuration, the control unit reads management information stored in the database when the card key antenna unit receives radio waves of a predetermined frequency from the card key RFID tag. The issuing unit outputs the management information read by the control unit to a readable medium. Thereby, for example, the presence or absence of monitoring of the theft state of the vehicle can be switched by a combination of the card key and the management information.

  Note that the readable medium on which the management information is output is a medium printed on a medium such as paper or a resin film so that the management information can be read by human eyes.

  As described above, the vehicle theft monitoring system of the present invention has an effect of reliably monitoring the presence or absence of a vehicle theft with a simple configuration.

  Hereinafter, more specific embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing a schematic configuration of a vehicle theft monitoring system 1 according to the present embodiment. In the present embodiment, as an example, a case will be described in which the vehicle theft monitoring system 1 is applied to a parking lot provided in, for example, a department store, a shopping mall, an amusement facility, a public facility, or the like.

  That is, the vehicle theft monitoring system 1 according to the present embodiment includes a light shielding sheet 2, a parking space side terminal device 3, a card key 4, an entrance / exit gate side terminal device 5, and a management device 6.

  The parking space side terminal device 3 and the management device 6 are connected by a wired LAN (Local Area Network) 7 in a wired manner. The entrance / exit gate terminal device 5 and the management device 6 are connected by a wired LAN 7 in a wired manner. The first RFID tag 20 for vehicles and the second RFID tag 21 for vehicles provided on the light shielding sheet 2 can wirelessly access the parking space side terminal device 3. The RFID key 40 for card key provided in the card key 4 can access the entrance / exit gate side terminal device 5 by radio. Note that other terminal devices, servers, and the like may exist on the vehicle theft monitoring system 1.

  FIG. 2 is a conceptual diagram showing an overall configuration of a parking lot provided with the vehicle theft monitoring system 1 described above. The parking lot 100 includes a vehicle entrance gate 101, a vehicle passage 102, a parking space 103, a walking passage 104, an entrance / exit gate 105, and a vehicle entrance gate 106.

  The vehicle entrance gate 101 is a gate where a vehicle enters. In the vehicle entrance gate 101, a user of the parking lot 100 such as a vehicle driver is given the light shielding sheet 2 and the card key 4 from the administrator of the parking lot 100. A device (not shown) may be installed at the vehicle entrance gate 101, and the light shielding sheet 2 and the card key 4 may be automatically delivered to the user by this device.

  The vehicle passage 102 is a passage through which the vehicle passes. The parking space 103 is a space where the vehicle is parked. In the example shown in FIG. 2, the parking space 103 has a parking space 103 for eight vehicles. Moreover, the parking space side terminal device 3 is installed in the parking space 103, respectively. The walking passage 104 is a passage through which a user of the parking lot 100 passes. The entrance gate 105 is a gate through which a user enters and exits the parking lot 100. An entrance / exit gate-side terminal device 5 is installed at the entrance / exit gate 105. The vehicle entry gate 106 is a gate where the vehicle enters. A management device 6 is installed at the vehicle entry gate 106. In addition, the management apparatus 6 may be installed in the vehicle entrance gate 101, for example, may be installed in the management room which the parking lot 100 does not illustrate.

(Configuration of light shielding sheet)
The light shielding sheet 2 shown in FIG. 1 is a sheet that can be attached to a windshield glass F of a vehicle. The light shielding sheet 2 is delivered from the manager of the parking lot 100 together with the card key 4 at the vehicle entrance gate 101.

  FIG. 3 is a conceptual diagram showing a state in which the light shielding sheet 2 is attached to the windshield glass F of the vehicle. As shown in FIG. 3, the vehicle C includes a driver seat D for driving the vehicle C and a windshield glass F provided in front of the driver seat D.

  The main role of the light shielding sheet 2 in the present embodiment is to attach the light shielding sheet 2 to the windshield glass F, thereby obstructing the field of view in front of the driver seat D, making the driving of the vehicle C virtually impossible, and further the state Is to be grasped on the management device 6 side. For this reason, the light shielding sheet 2 needs to be attached so as to cover at least the front of the driver seat D of the windshield glass F. Furthermore, it is preferable to cover the entire surface of the windshield glass F. Moreover, in order to make the attachment easy, it is good for the one surface of the light shielding sheet 2 to be provided with a suction cup structure so that it can be adsorbed. The light-shielding sheet 2 only needs to have a light-shielding property that makes it difficult to secure a field of view necessary for driving, and the material and structure thereof are not particularly limited. However, the use of a material having a large dielectric constant and affecting the RFID tag is limited. In addition, the light shielding sheet 2 functions as a sunshade, and is effective when the theft monitoring system 1 is applied to an outdoor parking lot.

  The light shielding sheet 2 includes a vehicle first RFID tag 20 and a vehicle second RFID tag 21. The first RFID tag for vehicle 20 and the second RFID tag for vehicle 21 are provided inside the light shielding sheet 2 so as not to be visible from the outside.

  The first RFID tag 20 for vehicles is a tag that can transmit and receive radio waves of a predetermined frequency with the vehicle antenna portion 30 of the parking space side terminal device 3 when the light shielding sheet 2 is attached to the windshield glass F. is there.

  FIG. 4A is a plan view showing the configuration of the first RFID tag for vehicle 20. As shown in FIG. 4A, the first RFID tag for vehicle 20 includes an IC chip 20a and an antenna module 20b. The IC chip 20a includes a storage unit, a transmission / reception unit, a rectification unit, and the like (not shown). Further, identification information for identifying the individual first RFID tag for vehicle 20 is stored in the IC chip 20a. The antenna module 20b receives a radio wave from the vehicle antenna unit 30, and transmits a response radio wave with identification information added thereto. The antenna module 20b includes, for example, a dipole antenna or a loop antenna. The same applies to other RFID tags.

  When the light shielding sheet 2 is attached to the windshield glass F, the antenna module 20b is designed to have a length or the like so that the first RFID tag for vehicle 20 resonates with radio waves from the vehicle antenna unit 30. That is, the length of the antenna module 20b is designed in consideration of the influence of the windshield glass F that is an attachment target. Therefore, when the light shielding sheet 2 is not attached to the windshield glass F, the first RFID tag for vehicle 20 cannot transmit / receive radio waves having a predetermined frequency to / from the vehicle antenna unit 30. Here, resonance means that the effective length of the antenna module 20b is n / 4 times the wavelength λ of the radio wave from the vehicle antenna unit 30 (where n is a natural number), so that the first RFID tag for vehicle 20 transmits radio waves. Receiving, and a current flows through the antenna module 20b, and a response radio wave is transmitted.

  The second RFID tag for vehicle 21 is a tag capable of transmitting and receiving radio waves of a predetermined frequency with the vehicle antenna unit 30 when the light shielding sheet 2 is not attached to the windshield glass F.

  FIG. 4B is a plan view showing the configuration of the second RFID tag 21 for a vehicle. As shown in FIG. 4 (b), the second RFID tag for vehicle 21 includes an IC chip 21a and an antenna module 21b, similarly to the first RFID tag for vehicle 20 shown in FIG. 4 (a). The IC chip 21a includes a storage unit, a transmission / reception unit, a rectification unit, and the like (not shown). The IC chip 21a stores identification information for identifying the individual second RFID tag 21 for vehicles. The antenna module 21b receives a radio wave from the vehicle antenna unit 30 and transmits a response radio wave with identification information added thereto.

  When the light shielding sheet 2 is not attached to the windshield glass F, the antenna module 21b is designed to have a length or the like so that the vehicle second RFID tag 21 resonates with the radio wave from the vehicle antenna unit 30. That is, the length etc. of the antenna module 21b are designed in a state where there is no influence of the windshield glass F. Therefore, when the light shielding sheet 2 is attached to the windshield glass F, the second RFID tag for vehicle 21 cannot transmit / receive radio waves having a predetermined frequency to / from the vehicle antenna unit 30.

  In the present embodiment, attaching the light shielding sheet 2 to the windshield glass F means attaching the light shielding sheet 2 under the influence of the windshield glass F that is a dielectric. The present embodiment utilizes the fact that the center frequency at which the first RFID tag for vehicle 20 and the second RFID tag for vehicle 21 resonate shifts due to the influence of the dielectric.

  If there is a large gap between the first RFID tag for vehicle 20 and the second RFID tag for vehicle 21 and the windshield glass F, the windshield glass F is not affected, which is not preferable in the present embodiment. Although it differs somewhat depending on the frequency and the type of the windshield glass F, for example, if there is a gap exceeding 20 mm, the windshield glass F is hardly affected. Naturally, the windshield glass F is affected by the normal mounting method. In particular, the first RFID tag for vehicle 20 and the second RFID tag for vehicle 21 are preferably attached so as to be in close contact with the windshield glass F so that the influence of the windshield glass F is increased.

  In the above description, the first RFID tag for vehicle 20 and the second RFID tag for vehicle 21 receive the radio wave from the vehicle antenna unit 30 and transmit the response radio wave with identification information added thereto. It is not limited. That is, it may be a so-called active RFID tag in which a battery or the like is incorporated in the first RFID tag for vehicle 20 and the second RFID tag for vehicle 21 and transmits radio waves by itself.

(Configuration of parking space side terminal device)
The parking space side terminal device 3 illustrated in FIG. 1 includes a vehicle antenna unit 30, a control unit 31, a buzzer 32, and a communication processing unit 33.

  The vehicular antenna unit 30 can transmit and receive radio waves of a predetermined frequency with the first vehicular RFID tag 20 and the second vehicular RFID tag 21 and includes an antenna 30a and a scanner 30b.

  The antenna 30a transmits radio waves to the first RFID tag for vehicle 20 and the second RFID tag for vehicle 21, and receives response radio waves from the first RFID tag for vehicle 20 and the second RFID tag for vehicle 21. When the antenna 30a receives response radio waves from the first RFID tag for vehicle 20 and the second RFID tag for vehicle 21, the antenna 30a and the response radio wave resonate, and a current flows through the antenna 30a.

  The scanner 30b has a function of entering a radio wave transmission mode while receiving a transmission command signal from the control unit 31, and a response radio wave reception mode when the transmission command signal from the control unit 31 is interrupted. Further, the scanner 30b controls the communication state signal indicating whether or not the first RFID tag for vehicles 20, the second RFID tag for vehicles 21 and the antenna 30a can transmit and receive radio waves of a predetermined frequency in the response radio wave reception mode. To 31. The communication state signal includes identification information of the first RFID tag for vehicle 20 and the second RFID tag for vehicle 21.

  The control unit 31 includes, for example, a CPU and an MPU, and controls operations of the scanner 30b, the notification unit 32, and the communication processing unit 33. The controller 31 determines that the first RFID tag 20 for vehicle and the antenna unit 30 for vehicle are predetermined from the state in which the communication state signal is transmitted and received between the second RFID tag 21 for vehicle and the antenna unit 30 for vehicle at a predetermined frequency. When it shows that it has changed into the state which is transmitting / receiving the electromagnetic wave of a frequency, an activation signal is output to the buzzer 32. That is, in such a case, the light shielding sheet 2 is attached to the windshield glass F. In addition, the control unit 31 outputs a communication status signal to the communication processing unit 33.

  The buzzer 32 outputs a sound based on the activation signal from the control unit 31. The sound output from the buzzer 32 is when the light shielding sheet 2 is attached to the windshield glass F. For this reason, the user of the parking lot 100 can easily confirm by the sound output of the buzzer 32 that the light shielding sheet 2 is normally attached to the windshield glass F. Instead of the buzzer 32, for example, an LED, a display board, an audio output device, or the like may be used.

  The communication processing unit 33 is an interface unit that performs communication processing with the management device 6 via the wired LAN 7. The communication processing unit 33 transmits a communication status signal and the like to the management device 6.

(Card key configuration)
The card key 4 shown in FIG. 1 is a key that can be carried by the user. The card key 4 has a function of switching the presence / absence of monitoring of the theft state of the vehicle C. Therefore, the card key 4 includes a card key RFID tag 40, a receiving unit 41, and a display unit 42. The card key 4 may be provided with a notification function for generating a sound or an alarm or a notification function for generating a vibration (vibrator) in addition to the card key RFID tag 40, the reception unit 41, and the display unit 42. .

  The card key RFID tag 40 is a tag capable of transmitting and receiving radio waves of a predetermined frequency with the card key antenna unit 50 of the entrance / exit gate side terminal device 5. The card key RFID tag 40 can transmit and receive radio waves of a predetermined frequency to and from the card key antenna unit 50 when the card key 4 is present in the parking lot 100.

  FIG. 4C is a plan view showing the configuration of the card key RFID tag 40. As shown in FIG. 4 (c), the card key RFID tag 40 is an IC chip, similar to the first RFID tag 20 for vehicles shown in FIG. 4 (a) and the second RFID tag 21 for vehicles shown in FIG. 4 (b). 40a and an antenna module 40b. The IC chip 40a includes a storage unit, a transmission / reception unit, a rectification unit, and the like (not shown). The IC chip 40a stores identification information for identifying the individual card key RFID tag 40. The antenna module 40b receives a radio wave from the card key antenna unit 50 and transmits a response radio wave with identification information added thereto. Note that the response radio wave functions as a monitoring signal for switching whether or not the vehicle C is monitored for the theft.

  The antenna module 40b is designed to have a length or the like so that the card key RFID tag 40 resonates with the radio wave from the card key antenna section 50.

  The receiving unit 41 receives from the management device 6 a theft signal for notifying that the vehicle C is in a stolen state, a signal indicating the parking location of the vehicle C, and the like. The receiving unit 41 outputs these received signals to the display unit 42.

  The display unit (informing unit) 42 is preferably a flat display element such as a liquid crystal display or an organic EL display in order to make the card key 4 thin. When the display unit 42 receives a theft signal for notifying that the vehicle C is in a stolen state, the display unit 42 displays that the vehicle C is in a stolen state. At this time, a voice or an alarm may be generated at the same time. Thereby, it is possible to promptly notify the user of the vehicle C such as a driver that the vehicle C is in a stolen state.

  Moreover, the display part 42 will display the individual number etc. of the parking space 103 for the user of the vehicle C to park, if the signal which shows the parking place of the vehicle C is received. That is, when the user's vehicle C enters from the vehicle entrance gate 101, the individual number of the vacant parking space 103 is displayed on the display unit. Thereby, the user can easily confirm a vacant parking space in the parking lot 100. The display unit 42 may display usage guidance for the parking lot 100 and other information.

(Configuration of the terminal device at the entrance gate side)
1 includes a card key antenna unit 50, a database 51, a control unit 52, an issuing unit 53, a reading unit 54, and a communication processing unit 55.

  The card key antenna unit 50 can transmit and receive radio waves of a predetermined frequency with the card key RFID tag 40, and includes an antenna 50a and a scanner 50b.

  The antenna 50 a transmits radio waves to the card key RFID tag 40 and receives response radio waves from the card key RFID tag 40. When the antenna 50a receives the response radio wave from the card key RFID tag 40, the antenna 50a and the response radio wave resonate, and a current flows through the antenna 50a. When the antenna 50a receives a response radio wave from the card key RFID tag 40, the card key 4 is present in the parking lot 100.

  The scanner 50b has a function of entering a radio wave transmission mode while receiving a transmission command signal from the control unit 52, and entering a response radio wave reception mode when the transmission command signal from the control unit 52 is interrupted. In addition, the scanner 50 b outputs a monitoring signal for switching the presence / absence of monitoring of the theft state of the vehicle C to the control unit 52 in the response radio wave reception mode. The monitoring signal is formed from identification information of the card key RFID tag 40.

  The database 51 stores management information associated with the card key RFID tag 40. The database 51 stores the management information as a management information table 51a as shown in FIG. 5, for example. The management information table 51a stores identification information of the RFID tag 40 for card key and management information. In the example shown in FIG. 5, identification information “0001” and management information “002kh” are stored in the first row R1 of the management information table 51a. In the second row R2, identification information “0002” and management information “02ki” are stored. In the third row R3, identification information “0003” and management information “02kj” are stored. In the example shown in FIG. 5, the management information has been described as information consisting of alphanumeric characters, but may be unique information such as “Taro Yamada”. Also, the management information may be associated with time, for example. Further, in the example shown in FIG. 5, the example in which the database 51 is stored in the table format has been described, but the storage format is arbitrary.

  The control unit 52 includes, for example, a CPU and an MPU, and controls operations of the scanner 50b, the database 51, the issuing unit 53, the reading unit 54, and the communication processing unit 55. When the monitoring signal indicates that the vehicle C is being stolen, the control unit 52 reads the management information stored in the database 51 based on the identification information of the card key RFID tag 40. For example, when the identification information of the card key RFID tag 40 indicates “0003”, the management information “002kj” is read in the example shown in FIG. The control unit 52 outputs the read management information to the issuing unit 53. Further, the control unit 52 outputs a monitoring signal to the communication processing unit 55. Further, the control unit 52 outputs the result read by the reading unit 54 to the communication processing unit 55.

  The issuing unit 53 has a function of issuing management information read by the control unit 52 to the user of the vehicle C. In the present embodiment, the issuing unit 53 has a printing function, for example. Therefore, the issuing unit 53 outputs the management information printing paper 53a on which the management information is printed on a readable medium such as paper or a resin film. FIG. 6 shows an example of the management information printing paper 53a. As shown in FIG. 6, management information “002kj” composed of alphanumeric characters and a bar code indicating the management information are printed on the management information printing paper 53a. Since the issuing unit 53 issues management information associated with the card key RFID tag 40, for example, when the user loses the card key 4, the issued management information is used as a substitute for the lost card key 4. be able to. The management information printing paper 53a may be provided with a function as a sticker, or may be printed in braille instead of printing management information consisting of alphanumeric characters. Further, the management information printing paper 53a may be attached to a wristband, for example. Further, the management information printed on the management information printing paper 53a may be taken into a mobile phone or the like using, for example, a camera function of the mobile phone.

  The reading unit 54 includes a barcode reader that reads a barcode, an OCR (Optical Character Reader) that optically reads characters, and the like. In the present embodiment, the reading unit 54 reads a barcode printed on the management information printing paper 53a. That is, the reading unit 54 reads the management information indicated by the barcode. The management information read by the reading unit 54 is output to the control unit 52.

  The communication processing unit 55 is an interface unit that performs communication processing with the management device 6 via the wired LAN 7. The communication processing unit 55 transmits a monitoring signal, management information read by the reading unit 54, and the like to the management device 6.

(Management device configuration)
The management device 6 illustrated in FIG. 1 includes a communication processing unit 60, a control unit 61, a reception unit 62, a transmission unit 63, a fee calculation unit 64, and a display unit 65.

  The communication processing unit 60 is an interface unit that performs communication processing between the parking space side terminal device 3 and the entrance / exit gate side terminal device 5 via the wired LAN 7. The communication processing unit 60 receives a communication state signal from the parking space side terminal device 3, a monitoring signal from the entrance / exit gate side terminal device 5, management information, and the like.

  The control unit 61 includes an association unit 61a. Moreover, the control part 61 has the function of the monitoring mode 610, the non-monitoring mode 611, and the alert mode 612, as shown in FIG.

  The association unit 61a associates the first RFID tag for vehicle 20 and the RFID tag for card key 40 with each other. The associating unit 61a associates the second RFID tag 21 for a vehicle with the RFID tag 40 for a card key. FIG. 8 shows a state in which the first RFID tag for vehicle 20 and the second RFID tag for vehicle 21 and the RFID key for card key 40 are associated with each other, and the management printed on the RFID tag for card key 40 and the management information printing paper 53a. It is a conceptual diagram which shows the state linked | related with information. In the present embodiment, when the light shielding sheet 2 and the card key 4 are handed to the user from the administrator of the parking lot 100 at the vehicle entrance gate 101, the first RFID tag 20 for vehicles and the second RFID tag 21 for vehicles, The card key RFID tag 40 is associated.

  The monitoring mode 610 is a mode for monitoring the theft state of the vehicle C. That is, when the control unit 61 receives a monitoring signal indicating that the theft state of the vehicle C is monitored from the entrance / exit gate terminal device 5, the control unit 61 shifts to the monitoring mode 610. When the control part 61 transfers to the monitoring mode 610, the control part 61 is in the state in which the 1st RFID tag 20 for vehicles and the antenna part 30 for vehicles are transmitting / receiving the electromagnetic wave of a predetermined frequency from the parking space side terminal device 3. When the communication state signal shown is received, it is determined that the vehicle C is in a non-theft state. On the other hand, on the contrary, the control unit 61 transmits a communication state signal indicating a state where the second RFID tag 21 for vehicle and the antenna unit 30 for vehicle transmit and receive radio waves of a predetermined frequency from the parking space side terminal device 3. Is received, it is determined that the vehicle C is in a stolen state. When it is determined that the vehicle C is in a stolen state, the control unit 61 outputs a theft signal for notifying that the vehicle C is in a stolen state, an alarm signal for issuing an alarm, and the exit (participation) of the vehicle C. A shipping prohibition signal for restricting the number is generated.

  The non-monitoring mode 611 is a mode in which the theft state of the vehicle C is not monitored. That is, the control unit 61 shifts to the non-monitoring mode 611 when receiving a monitoring signal indicating that the theft state of the vehicle C is not monitored from the gateway terminal device 5. When the control unit 61 shifts to the non-monitoring mode 611, the control unit 61 does not monitor the theft state of the vehicle C regardless of the communication state signal. This non-monitoring mode 611 is a mode corresponding to a case where the user properly enters the vehicle C. In the present embodiment, the control unit 61 shifts to the non-monitoring mode 611 when receiving a monitoring signal indicating that the theft state of the vehicle C is not monitored and management information associated with the monitoring signal. . As a result, not only the card key 4 but also the card key 4 and the management information printed on the management information printing paper 53a causes the control unit 61 to shift to the non-monitoring mode 611, so that security can be improved.

  The alert mode 612 is a mode for alerting the theft state of the vehicle C. That is, the control unit 61 shifts to the alert mode 612 when the user loses the card key 4 or the like. Specifically, for example, when the user loses the card key 4, the administrator of the parking lot 100 notifies the controller 61 that the card key 4 has been lost using the input means of the management device 6 (not shown). To do. Thereby, the control unit 61 shifts to the alert mode 612. When the control unit 61 shifts to the alert mode 612, the control unit 61 monitors whether the vehicle C is in a stolen state regardless of the monitoring signal. Thereby, for example, even if the user loses the card key 4 and a third party tries to steal the vehicle C using the lost card key 4, the control unit 61 is in the warning mode 612. The theft of the vehicle C can be prevented.

  In addition, when the user's vehicle C enters the parking lot entry gate 56, the control unit 61 determines whether the vehicle shading sheet 2 and the card key 4 that are returned from the user are associated by the association unit 61a. Determine whether or not. This determination result is output to the display unit 65.

  The accepting unit 62 has a function of accepting access via the Internet from a terminal such as a mobile phone or a personal computer. For this reason, the reception unit 62 has a function as a Web server. The reception unit 62 receives an inquiry about the parking state of the vehicle C from, for example, a mobile phone held by a user of the vehicle C. The content received by the receiving unit 62 is output to the control unit 61. The control unit 61 outputs the received content to the transmission unit 63.

  The transmission unit 63 returns the content of the inquiry received by the reception unit 62 to the terminal that made the inquiry. The transmitter 63 transmits a signal indicating the parking location of the vehicle C to the card key 4. That is, the transmitter 63 transmits the individual number of the vacant parking space 103 in the parking lot 100 to the card key 4 as a signal indicating the parking location of the vehicle C.

  Moreover, the transmission part 63 is provided with the calling part 63a. When the control unit 61 determines that the vehicle C is in a theft state, the calling unit 63a transmits a theft signal for notifying that the vehicle C is in the theft state to the card key 4. In addition to transmitting the theft signal to the card key 4, the calling unit 63a may transmit it to a mobile phone held by the user. In addition, the calling unit 63a may transmit a theft signal to a server or the like provided in, for example, a police station or a security room.

  The fee calculation unit 64 has a function of calculating the parking fee of the parking lot 100 when the user's vehicle C enters the parking lot entry gate 106. The fee calculation unit 64 calculates a parking fee based on, for example, the time when the vehicle C enters from the vehicle entry gate 101 or the time when the light shielding sheet 2 is attached to the windshield glass F.

  The display unit 65 displays a warning (alarm) based on a warning signal for generating a warning generated by the control unit 61. Note that an alarm sound may be output simultaneously with displaying an alarm. In addition, the display unit 65 displays that the vehicle C is prohibited to be output based on the output prohibition signal for restricting the output of the vehicle C generated by the control unit 61. Further, the display unit 65 displays the parking fee calculated by the fee calculation unit 64, the state of the vehicle C parked in the parking space 103, and the like. Further, the display unit 65 displays whether or not the light shielding sheet 2 and the card key 4 returned from the user are associated when the user's vehicle C enters the parking lot entry gate 106. The display unit 65 includes a CRT, a liquid crystal display, an organic EL display, or the like.

(Operation of vehicle theft monitoring system)
In the above configuration, the operation of the vehicle theft monitoring system 1 will be described with reference to FIGS. 9 to 12 as follows.

  First, the operation of the vehicle theft monitoring system 1 when the vehicle C enters the parking lot 100 will be described. FIG. 9 is a flowchart showing the operation of the vehicle theft monitoring system 1 when the vehicle C enters the parking lot 100.

  First, the vehicle C driven by the user enters from the vehicle entrance gate 101. At the vehicle entrance gate 101, the user receives the light shielding sheet 2 and the card key 4 from the manager of the parking lot 100. When the light shielding sheet 2 and the card key 4 are handed to the user, the associating unit 61a of the management device 6 associates the first RFID tag for vehicle 20 with the RFID tag for card key 40. Further, the associating unit 61a associates the first RFID tag for vehicle 21 with the RFID tag for card key 40 (operation Op1).

  Here, the receiving unit 41 of the card key 4 delivered from the administrator receives a signal indicating the parking location of the vehicle C transmitted from the transmitting unit 63 of the management device 6. When the receiving unit 41 receives a signal indicating the parking location of the vehicle C, the display unit 42 of the card key 4 displays the individual number of the parking space 103 for the user to park (Step Op2). The user moves the vehicle C to the parking space indicated by the individual number displayed on the display unit 42.

  After the vehicle C is parked in the parking space, the user attaches the light shielding sheet 2 to the windshield glass F of the vehicle C. When the light shielding sheet 2 is attached to the windshield glass F, the communication state signal of the vehicle antenna unit 30 of the parking space side terminal device 3 is transmitted and received between the second RFID tag for vehicle 21 and the vehicle antenna unit 30 at a predetermined frequency. The state changes from the state in which the first RFID tag 20 for vehicles and the antenna unit 30 for vehicles transmit and receive radio waves of a predetermined frequency. When detecting a change in the communication state signal, the control unit 31 of the parking space side terminal device 3 outputs an activation signal to the buzzer 32. The buzzer 32 outputs a sound based on the activation signal from the control unit 31 (Step Op3). Thereby, the user can easily confirm that the light shielding sheet 2 is normally attached to the windshield glass F by the sound output of the buzzer 32.

  Thereafter, the user gets off the vehicle C and locks the vehicle C. The user carries the card key 4 when getting off the vehicle C. Then, the user passes through the walking passage 104 and moves to the entrance gate 105. The user who has moved to the entrance / exit gate 105 transmits a monitoring signal indicating that the theft state of the vehicle C is to be monitored to the card key antenna unit 50 of the entrance / exit gate side terminal device 5 from the card key 4 that is carried around ( Step Op4). The entrance / exit gate side terminal device 5 transmits to the management device 6 a monitoring signal indicating that the theft state of the vehicle C is monitored.

  The control unit 61 of the management device 6 shifts to a monitoring mode 610 for monitoring the theft state of the vehicle C when receiving a monitoring signal indicating that the theft state of the vehicle C is monitored from the gate terminal device 5 (step). Op5). After the control unit 61 shifts to the monitoring mode 610, the control unit 52 of the gateway terminal device 5 is stored in the database 51 based on the identification information of the card key RFID tag 40 provided on the card key 4. Read management information. The issuing unit 53 outputs the management information read by the control unit 52 to a readable medium for the user (Step Op6). That is, the issuing unit 53 issues a management information printing paper 53a on which management information is printed. The user carries the issued management information printing paper 53 a together with the card key 4 and enters from the entrance gate 105.

  Next, the operation in the monitoring mode (step Op5) in FIG. 9 will be described with reference to FIG. FIG. 10 is a flowchart showing the monitoring operation of the vehicle theft monitoring system 1.

  First, the control unit 61 of the management device 6 determines whether the communication state signal from the parking space side terminal device 3 is a state in which the first RFID tag for vehicle 20 and the vehicle antenna unit 30 are transmitting and receiving radio waves of a predetermined frequency. Determine whether. If the communication state signal indicates that the vehicle first RFID tag 20 and the vehicle antenna unit 30 are transmitting and receiving radio waves of a predetermined frequency (Yes in step Op51), the control unit 61 windshield glass. Since the light shielding sheet 2 is attached to F, it is determined that the vehicle C is in a non-theft state (Step Op52). On the other hand, if the communication state signal indicates that the vehicle first RFID tag 20 and the vehicle antenna unit 30 are not transmitting / receiving radio waves of a predetermined frequency (No in step Op51), the control unit 61 performs the process. The process proceeds to Op53, and it is determined whether the second RFID tag for vehicle 21 and the vehicle antenna unit 30 are transmitting and receiving radio waves of a predetermined frequency.

  If the communication state signal indicates that the vehicle second RFID tag 21 and the vehicle antenna unit 30 are transmitting and receiving radio waves of a predetermined frequency (Yes in step Op53), the control unit 61 windshield glass. Since the light shielding sheet 2 is not attached to F, it is determined that the vehicle C is in a stolen state (Step Op54). On the other hand, if the communication state signal does not indicate that the vehicle second RFID tag 21 and the vehicle antenna unit 30 are transmitting and receiving radio waves of a predetermined frequency (No in step Op53), the control unit 61 performs communication. It is determined that an error has occurred (step Op55).

  If it is determined in step Op54 that the vehicle C is in a stolen state, the calling unit 63a of the management device 6 transmits a theft signal for notifying that the vehicle C is in a stolen state to the card key 4 (step). Op56). The card key 4 receives the theft signal from the calling unit 63a and displays that the vehicle C is in a stolen state (Step Op57). When it is determined in step Op54 that the vehicle C is in a stolen state, the control unit 61 outputs an alarm signal for issuing an alarm to the display unit 65 of the management device 6 (step Op58). The display unit 65 displays a warning (alarm) (Step Op59). Furthermore, the control part 61 outputs the leaving prohibition signal for restricting the leaving of the vehicle C to the display part 65 (process Op60). The display unit 65 displays that the vehicle C is prohibited from leaving (participating) (Step Op61). Thereby, the manager of the parking lot 100 knows that the delivery of the vehicle C should be prohibited. The control unit 61 may automatically close the entrance / exit gate in order to limit the exit of the vehicle C by transmitting an exit prohibition signal to the entrance / exit gate side terminal device 5.

  Next, the operation of the vehicle theft monitoring system 1 when the user loses the card key 4 will be described with reference to FIG. FIG. 11 is a flowchart showing a warning operation of the vehicle theft monitoring system 1.

  As an example, when the user loses the card key 4, the user notifies the manager of the parking lot 100 that the card key 4 has been lost. The administrator who is informed that the card key 4 has been lost notifies the controller 61 of the management device 6 that the card key 4 has been lost using an input means (not shown) of the management device 6 (step Op11). . When notified that the card key 4 has been lost, the control unit 61 shifts to a warning mode 612 that warns of the theft state of the vehicle C (operation Op12). When the control unit 61 shifts to the alert mode 612, the control unit 61 monitors whether the vehicle C is in a stolen state regardless of the monitoring signal. Thereby, for example, even if the user loses the card key 4 and the third party tries to steal the vehicle C using the lost card key 4, the control unit 61 has shifted to the warning mode 612. Theft can be prevented.

  Finally, the operation of the vehicle theft monitoring system 1 when the vehicle C enters the parking lot 100 will be described with reference to FIG. FIG. 12 is a flowchart showing the operation of the vehicle theft monitoring system 1 when the vehicle C enters the parking lot 100.

  First, a user enters from the entrance gate 105. At the entrance / exit gate 105, the user transmits a monitoring signal indicating that the theft state of the vehicle C is not monitored from the card key 4 carried to the card key antenna unit 50 of the entrance / exit gate side terminal device 5 (step). Op21). Then, the user causes the reading unit 54 of the entrance / exit gate terminal device 5 to read the barcode printed on the management information printing paper 53a. That is, the reading unit 54 reads the management information indicated by the barcode (Step Op22). The entrance / exit gate side terminal device 5 transmits a monitoring signal indicating that the theft state of the vehicle C is not monitored and management information to the management device 6.

  When the control unit 61 of the management device 6 receives a monitoring signal or management information indicating that the theft state of the vehicle C is not monitored from the gateway terminal device 5, the monitoring signal and the management information are associated with each other. Determine whether. That is, the control unit 61 determines whether or not the card key 4 is associated with the management information. If it is determined that the card key 4 and the management information are associated with each other (Yes in step Op23), the control unit 61 shifts to the non-monitoring mode 611 (step Op24). On the other hand, if control unit 61 determines that card key 4 and management information are not associated (No in step Op23), control unit 61 returns to step Op21 without shifting to non-monitoring mode 611.

  Thereafter, the user passes through the walking passage 104 and moves to the position of the vehicle C parked in the parking space 103. The user unlocks the vehicle C and gets on the vehicle C. A user who gets on the vehicle C removes the light shielding sheet 2 attached to the windshield glass F. When the light shielding sheet 2 is removed from the windshield glass F, the windshield glass F provides a good front view from the driver seat D, so that the user can drive the vehicle C from the driver seat D. . Then, the user drives the vehicle C and moves the vehicle C to the vehicle entry gate 106.

  After moving the vehicle C to the vehicle entry gate 106, the user returns the light shielding sheet 2 and the card key 4 to the manager of the parking lot 100. The administrator of the parking lot 100 inputs information on the light shielding sheet 2 and the card key 4 to the management device 6 using an input unit (not shown). The control unit 61 of the management device 6 determines whether or not the light shielding sheet 2 and the card key 4 returned from the user are associated by the association unit 61a. If it is determined that the light shielding sheet 2 and the card key 4 returned from the user are related by the association unit 61a (Yes in step Op25), the control unit 61 determines that the combination is correct (step). Op26). On the other hand, if the control unit 61 determines that the light shielding sheet 2 and the card key 4 returned from the user are not associated by the association unit 61a (No in step Op25), the control unit 61 determines that the combination is incorrect. (Step Op27). The determination results of step Op26 and step Op27 are displayed on the display unit 65 of the management device 6.

  If it is determined in step Op26 that the combination is correct, the fee calculation unit 64 of the management device 6 calculates the parking fee of the parking lot 100 (step Op28). The user hands over the parking fee of the parking lot 100 to the manager of the parking lot 100, for example, and settles the parking fee. After paying the parking fee, the user enters the vehicle C from the vehicle entry gate 106. On the other hand, if it is determined in Step Op27 that the combination is incorrect, the manager of the parking lot 100 performs a confirmation operation on the user of the vehicle C.

  As described above, according to the vehicle theft monitoring system 1 according to the present embodiment, when the light shielding sheet 2 is attached to the windshield glass F, the influence of the windshield glass F that is a dielectric is taken into consideration. The first RFID tag 20 for a vehicle is designed to resonate with a radio wave having a predetermined frequency from the antenna unit 30 for a vehicle. Therefore, the first RFID tag 20 for a vehicle transmits a radio wave having a predetermined frequency with the antenna unit 30 for a vehicle. It is possible to send and receive. For this reason, when the 1st RFID tag 20 for vehicles and the antenna part 30 for vehicles can transmit / receive the electromagnetic wave of a predetermined frequency, the light shielding sheet 2 is attached to the windshield glass F. Since the front view from the driver's seat D is blocked by the light shielding sheet 2, the vehicle C cannot be driven from the driver's seat D. Therefore, the control unit 61 determines that the vehicle C is in a non-theft state. On the other hand, when the light shielding sheet 2 is not attached to the windshield glass F, on the other hand, the vehicle second RFID tag 21 is not affected by the windshield glass F, which is a dielectric, and the vehicle antenna unit 30 Therefore, the second RFID tag 21 for a vehicle can transmit and receive a radio wave of a predetermined frequency with the antenna unit 30 for a vehicle. For this reason, when the 2nd RFID tag 21 for vehicles and the antenna part 30 for vehicles can transmit / receive the electromagnetic wave of a predetermined frequency, it is the state in which the light shielding sheet 2 is not attached to the windshield glass F. FIG. Since the forward view from the driver's seat D is good due to the windshield glass F, the vehicle C can be driven from the driver's seat D. Therefore, the control unit 61 determines that the vehicle C is in a stolen state. As a result, the vehicle theft monitoring system 1 that can reliably monitor the presence or absence of the theft of the vehicle C with a simple configuration can be realized.

  In the above description, the example in which the first RFID tag for vehicles and the second RFID tag for vehicles are provided on the light shielding sheet has been described. However, the present invention is not limited to this. For example, the light shielding sheet may be provided with only one vehicle RFID tag. That is, the control unit determines that the vehicle is in a non-theft state when the communication state signal indicates a state in which the vehicle RFID tag and the vehicle antenna unit are communicating. Moreover, a control part determines with the vehicle being in a theft state, when the communication status signal has shown the state which the RFID tag for vehicles and the antenna part for vehicles are not communicating.

  Moreover, although the above demonstrated the example comprised with a hardware different from a parking space side terminal device, an entrance / exit gate side terminal device, and a management apparatus, it is not limited to this. For example, the parking space side terminal device, the entrance / exit gate side terminal device, and the management device may be configured by the same hardware. In this case, it suffices if any one of the antenna unit for the vehicle of the parking space side terminal device and the antenna unit for the card key of the entrance / exit gate side terminal device is provided.

  That is, the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope shown in the claims. That is, embodiments obtained by combining technical means appropriately changed within the scope of the claims are also included in the technical scope of the present invention.

  As described above, the present invention is useful as a vehicle theft monitoring system that can reliably monitor the presence or absence of a vehicle theft with a simple configuration.

1 is a block diagram showing a schematic configuration of a vehicle theft monitoring system according to an embodiment of the present invention. It is a conceptual diagram which shows the whole structure of the parking lot provided with the said vehicle theft monitoring system. It is a conceptual diagram which shows the state in which the light shielding sheet in the said vehicle theft monitoring system is attached to the windshield glass. FIG. 4A is a plan view showing a configuration of an RFID tag used in the vehicle theft monitoring system, FIG. 4A is a plan view showing a configuration of a first RFID tag for vehicles, and FIG. 4B is a configuration of a second RFID tag for vehicles. FIG. 4C is a plan view showing the configuration of the card key RFID tag. It is a figure which shows an example of the data structure stored in the database in the said vehicle theft monitoring system. It is a figure which shows an example of the management information printing paper which the issuing part in the said vehicle theft monitoring system issued. It is a block diagram which shows each function of the control part in the said vehicle theft monitoring system. It is a conceptual diagram which shows the state in which the said control part each linked | related the 1st RFID tag for vehicles, the 2nd RFID tag for vehicles, the RFID tag for card keys, and management information. It is a flowchart which shows operation | movement in the case of making the vehicle enter into a parking lot in the said vehicle theft monitoring system. It is a flowchart which shows the monitoring operation | movement of the said vehicle theft monitoring system. It is a flowchart which shows the alert operation of the said vehicle theft monitoring system. It is a flowchart which shows the operation | movement in the case of making the vehicle enter the parking lot in the said vehicle theft monitoring system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle theft monitoring system 2 Shading sheet 4 Card key 20 1st RFID tag for vehicles (RFID tag for vehicles)
21 Second RFID tag for vehicle (RFID tag for vehicle)
DESCRIPTION OF SYMBOLS 30 Antenna part for vehicles 40 RFID tag for card keys 50 Antenna part for card keys 51 Database 53 Issuer 31, 52, 61 Control part F Windshield glass C Vehicle

Claims (7)

A light shielding sheet that can be attached to the windshield glass of the vehicle;
RFID tag for vehicle provided on the light shielding sheet,
A vehicle antenna unit for transmitting and receiving radio waves of a predetermined frequency with the vehicle RFID tag;
A vehicle theft monitoring system for monitoring the vehicle parked in a parking lot, comprising a control unit for controlling radio waves transmitted and received at a predetermined frequency via the vehicle antenna unit;
The vehicle RFID tag is
When the light shielding sheet is attached to the windshield glass, it is designed to be able to transmit and receive radio waves of a predetermined frequency,
When the light shielding sheet is not attached to the windshield glass, it becomes impossible to transmit and receive radio waves of a predetermined frequency,
The controller is
If the vehicle RFID tag and the vehicle antenna unit can detect whether or not radio waves of a predetermined frequency can be transmitted and received, and if transmission and reception are possible, the vehicle is in a non-theft state. If it is impossible to transmit and receive, the vehicle theft monitoring system determines that the vehicle is in a stolen state. A light shielding sheet that can be attached to the windshield glass of the vehicle;
RFID tag for vehicle provided on the light shielding sheet,
A vehicle antenna unit for transmitting and receiving radio waves of a predetermined frequency with the vehicle RFID tag;
A vehicle theft monitoring system for monitoring the vehicle parked in a parking lot, comprising a control unit for controlling radio waves transmitted and received at a predetermined frequency via the vehicle antenna unit;
The vehicle RFID tag has two, a first RFID tag for a vehicle and a second RFID tag for a vehicle,
The first RFID tag for a vehicle is
When the light shielding sheet is attached to the windshield glass, it is designed to be able to transmit and receive radio waves of a predetermined frequency,
The second RFID tag for a vehicle is
When the light shielding sheet is not attached to the windshield glass, it is designed to be able to transmit and receive radio waves of a predetermined frequency,
The controller is
It is possible to detect whether the first RFID tag for vehicles and the antenna unit for vehicles can transmit and receive radio waves of a predetermined frequency, and the second RFID tag for vehicles and the antenna unit for vehicles are predetermined. It can detect whether or not it is possible to send and receive radio waves of frequency,
If the first RFID tag for vehicles and the antenna unit for vehicles can transmit and receive radio waves of a predetermined frequency, it is determined that the vehicle is in a non-theft state,
The vehicle theft monitoring system, wherein the vehicle is determined to be in a stolen state if the second RFID tag for a vehicle and the vehicle antenna unit can transmit and receive a radio wave having a predetermined frequency. A portable card key having a card key RFID tag associated with the vehicle RFID tag;
The card key RFID tag in the parking lot and a card key antenna for transmitting and receiving radio waves of a predetermined frequency, and
The controller is
Whether or not the card key exists in the parking lot can be determined based on whether or not the card key RFID tag and the card key antenna section can transmit and receive radio waves of a predetermined frequency. Item 3. The vehicle theft monitoring system according to Item 1 or 2. The controller is
When it is determined that the card key does not exist in the parking lot and it is determined that the card key is stolen from the transmission / reception state between the vehicle RFID tag and the vehicle antenna, The vehicle theft monitoring system according to claim 3, wherein the signal is generated. The controller is
When it is determined that the card key does not exist in the parking lot and it is determined that the card key is stolen from the transmission / reception state between the vehicle RFID tag and the antenna unit for the vehicle, a signal for generating an alarm is generated. The vehicle theft monitoring system according to claim 3 or 4. The controller is
If it is determined that the card key does not exist in the parking lot, and it is determined that the card key is stolen from the transmission / reception state between the vehicle RFID tag and the vehicle antenna unit, The vehicle theft monitoring system according to any one of claims 3 to 5, wherein a signal for notifying that the vehicle is in a stolen state is generated. A database for storing management information associated with the card key RFID tag;
An issuing unit that outputs the management information to a readable medium;
The controller is
When the card key antenna unit receives a radio wave of a predetermined frequency from the card key RFID tag, the management information stored in the database is read out,
The issuing unit
The vehicle theft monitoring system according to any one of claims 3 to 6, wherein the management information read by the control unit is output to the readable medium.

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