JP2005082006A - Anti-theft system, and information communication terminal therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an anti-theft system and an information communication terminal therefor in which a communication terminal device mounted on a vehicle while the vehicle is parked is set in an anti-theft mode, a symptom of a vehicle theft is detected and immediately informed to a monitoring center, and the position of the stolen vehicle and the direction of movement are known by continuously informing positional information thereafter. <P>SOLUTION: The information communication terminal is mounted on a vehicle to transmit/receive theft information and position information. The anti-theft system communicates information between a monitoring center and a user terminal. The information communication terminal comprises a theft detection sensor unit, a GPS receiver unit, and a radio unit to transmit theft information and position information and receive information transmitted from the monitoring center. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to theft prevention in which when a vehicle is stolen in a parking state where the engine of the vehicle is stopped, the vehicle is stolen and the vehicle position thereafter is reported to a user or the like via a wireless communication network. The present invention relates to a system and an information communication terminal therefor.

Conventionally, in the parking state of a vehicle, when a sensor detects unlocking of a door lock or destruction of a door by an unauthorized person, an alarm means such as a buzzer is used to notify a theft alarm (Patent Document 1). reference). In addition, when the vehicle is parked, the vehicle itself is transported by truck or towed by a tow truck and stolen by being moved more than a certain distance by position information from a GPS receiver, or a gyro sensor When it fluctuates by more than a certain angle due to each speed information from the vehicle, or when measuring a certain speed or more by the vehicle speed information from the vehicle speed pulse receiver, it is judged that the theft is caused by a tow truck, etc. Reporting a theft to a theft monitoring center using a wireless device (see Patent Document 2).
Japanese Patent Laid-Open No. 10-266664 JP 2003-132441 A

  As in the past, when a sensor detects the unlocking of the door lock, etc., the alarm is stopped relatively easily by the unauthorized person being stopped or moved. Measures are taken. In addition, if it is determined that the theft has been measured when measuring a certain distance or more than a certain speed, or if it reports to the theft monitoring center, the theft cannot be reported immediately and the alarm is stopped by an unauthorized person. There was a problem such as being done.

  The present invention relates to a theft prevention system for reporting theft of a vehicle and the subsequent vehicle position via a wireless communication network, and an information communication terminal therefor, in which a communication terminal device mounted on the vehicle at the time of parking is set in a theft prevention mode. Another purpose is to detect signs of vehicle theft and immediately notify the monitoring center.

  It is another object of the present invention to know the position of a stolen vehicle and the direction of its movement by continuously reporting position information after reporting the vehicle theft.

  Another object of the present invention is to detect theft of a vehicle by monitoring position information at an information communication terminal even when theft detection sensor cannot detect theft.

  Another object of the present invention is to make it possible to communicate information such as subsequent positional information even when the power from the vehicle battery to the information communication terminal is cut off.

  It is another object of the present invention to enable the setting or release of the anti-theft mode or the control of position measurement conditions according to the user's request from the monitoring center.

  Another object of the present invention is to make it possible to use the position and time immediately before becoming the environment and accurately grasp the vehicle position even in an environment where the position information in the information communication terminal is not measured. To do.

The anti-theft system according to claim 1 is mounted on a vehicle, and is connected to an information communication terminal that transmits and receives information including theft information and position information by a radio signal, and the information communication terminal via a wireless communication network. And a theft prevention system having a monitoring center for communicating information with a user terminal,
The information communication terminal is
A theft detection sensor for detecting signs of vehicle theft and outputting a theft detection signal;
A GPS receiver unit for receiving satellite signals from a plurality of navigation satellites and outputting GPS signals including position signals and time signals;
A radio unit for transmitting the theft information and position information based on the theft detection signal and the GPS signal and receiving information sent from the monitoring center;
When the information communication terminal is set to the anti-theft mode by the anti-theft mode setting means, the anti-theft sensor unit, the GPS receiver unit and the radio unit are all in an operable state, and between the monitoring center It is possible to send and receive information on the Internet.

  The anti-theft system according to claim 2 is the anti-theft system according to claim 1, wherein the information communication terminal receives an external power source of a predetermined voltage from a vehicle battery, and the external power source is the anti-theft sensor unit and the GPS receiver. And an internal battery serving as an internal power source for backing up the external power source.

The anti-theft system according to claim 3 is the anti-theft system according to claim 2, wherein when the input of the external power source is cut off, the anti-theft sensor unit, the GPS receiver unit, and the radio unit are disconnected from the internal battery. Supply operation power to the
It is characterized in that at least the wireless device is notified that the input of the external power source has been cut off, and the operations of the wireless device unit and the GPS receiver unit are controlled to a power save mode.

  The anti-theft system according to claim 4 is the anti-theft system according to any of claims 1 to 3, wherein when the anti-theft detection signal is output when the information communication terminal is set in the anti-theft mode, the wireless device The unit immediately transmits the theft information.

  The anti-theft system according to claim 5 is the anti-theft system according to any one of claims 1 to 3, wherein when the anti-theft detection signal is output when the information communication terminal is set in the anti-theft mode, the wireless device Is characterized in that it immediately transmits the location information based on the theft information and the previous location signal obtained at that time.

  The anti-theft system according to claim 6 is the anti-theft system according to claims 4 and 5, when the anti-theft detection signal is output when the information communication terminal is set in the anti-theft mode. The operation of the machine part is started.

  The anti-theft system according to claim 7 is characterized in that, in the anti-theft system according to claim 6, position information is transmitted based on a position signal obtained at that time every predetermined distance or every predetermined time.

  The anti-theft system according to claim 8 is the anti-theft system according to claim 7, wherein the predetermined distance or the predetermined time can be set at an arbitrary interval based on a command from the user terminal.

  The anti-theft system according to claim 9 is characterized in that, in the anti-theft system according to claims 1 to 8, the anti-theft mode is set and released based on a command from the user terminal.

  The anti-theft system according to claim 10 is the anti-theft system according to any one of claims 1 to 3, wherein when the information communication terminal is set in an anti-theft mode, the radio unit and the GPS receiver unit are connected to the anti-theft system. Operate regardless of the detection signal, and when the position detection signal from the GPS receiver unit changes to an extent indicating vehicle movement, the radio unit determines that the theft and transmits the theft information and the position information. It is characterized by doing.

The information communication terminal according to claim 11 is an information communication terminal mounted on a vehicle and capable of transmitting / receiving information including theft information and position information to / from the outside with a radio signal,
A theft detection sensor for detecting signs of vehicle theft and outputting a theft detection signal;
A GPS receiver unit for receiving satellite signals from a plurality of navigation satellites and outputting GPS signals including position signals and time signals;
A radio unit for transmitting the theft information and position information based on the theft detection signal and the GPS signal and receiving information sent from the outside;
When the information communication terminal is set to the anti-theft mode by the anti-theft mode setting means, the anti-theft sensor unit, the GPS receiver unit, and the radio unit are all operable, and between the outside It is possible to transmit and receive the information.

  The information communication terminal according to claim 12 is the information communication terminal according to claim 11, wherein an external power supply of a predetermined voltage is input from the vehicle battery, and the external power supply is connected to the theft detection sensor unit, the GPS receiver unit, and the wireless device. And an internal battery as an internal power source for backing up the external power source.

The information communication terminal according to claim 13 is the information communication terminal according to claim 12, wherein when the input of the external power source is cut off, the theft detection sensor unit, the GPS receiver unit, and the wireless device are disconnected from the internal battery. Supply operation power to the
It is characterized in that at least the wireless device is notified that the input of the external power source has been cut off, and the operations of the wireless device unit and the GPS receiver unit are controlled to a power save mode.

  The information communication terminal according to claim 14 is the information communication terminal according to any one of claims 11 to 13, wherein when the theft detection signal is output when the antitheft mode is set, the radio unit immediately It is characterized by transmitting information.

  The information communication terminal according to claim 15 is the information communication terminal according to any one of claims 11 to 13, wherein when the theft detection signal is output when the antitheft mode is set, the radio immediately transmits the theft information. And the position information based on the immediately preceding position signal obtained at that time is transmitted.

  The information communication terminal of claim 16 is the information communication terminal of claims 14 and 15, wherein when the anti-theft detection signal is output when the anti-theft mode is set, the operation of the GPS receiver unit is performed. It is characterized by starting.

  The information communication terminal according to claim 17 is the information communication terminal according to claims 11 to 16, wherein the anti-theft mode is set and canceled based on the command from the outside.

  The information communication terminal according to claim 18 is the information communication terminal according to any one of claims 11 to 13, wherein when the anti-theft mode is set, the radio unit and the GPS receiver unit are not related to the theft detection signal. When the position detection signal from the GPS receiver unit changes to an extent indicating vehicle movement, the radio unit determines that the theft has occurred and transmits the theft information and the position information. To do.

  The information communication terminal according to claim 19 is the information communication terminal according to claims 11 to 19, wherein a GPS antenna for the GPS receiver unit and a transmission / reception antenna for the radio unit are integrally formed. It is characterized by that.

  According to the present invention, in a theft prevention system for reporting theft of a vehicle and the subsequent vehicle position via a wireless communication network and an information communication terminal therefor, the communication terminal device mounted on the vehicle at the time of parking is set in the theft prevention mode. A sign of vehicle theft can be detected and reported to the monitoring center immediately.

  Moreover, the position of the stolen vehicle and the direction of its movement can be known by continuously reporting the position information after reporting the vehicle theft.

  Further, even when the theft detection sensor cannot detect the theft, the vehicle theft can be detected by monitoring the position information in the information communication terminal.

  Further, even when the power supply from the vehicle battery to the communication terminal device is cut off, information such as subsequent position information can be continuously communicated by the power supply from the backup internal battery.

  In addition, the anti-theft mode can be set / released or the position measurement conditions can be controlled according to the user's request from the monitoring center, so the user can set anti-theft conditions even after leaving the vehicle. , Can be changed.

  In addition, even in an environment where the location information on the information communication terminal is not measured, the vehicle position can be accurately determined using the location and time immediately before becoming the environment by utilizing the fact that the location changes only at the time of theft. I can grasp it.

  Moreover, since the GPS antenna for the GPS receiver unit and the transmission / reception antenna for the radio unit are formed integrally with the information communication terminal itself, it is difficult for unauthorized persons to find these antennas.

  Embodiments of the anti-theft system and information communication terminal therefor according to the present invention will be described below in detail with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of an anti-theft system of the present invention and an information communication terminal therefor. In FIG. 1, a location information terminal device 100, which is an information terminal device, is mounted on a vehicle, and transmits and receives information including theft information and location information by radio signals.

  An application service provider (hereinafter referred to as ASP) 400 that is a monitoring center transmits and receives information to and from the location information communication terminal 100 via a packet communication network 300 that is a wireless communication network.

  The user terminal 500 receives information INF such as vehicle theft information and position information related to itself from the ASP 400, and transmits various commands REQ to the position information communication terminal 100 through the ASP 400. This command REQ is, for example, setting of the anti-theft mode or its cancellation, position measurement conditions, vehicle position inquiry, and the like. Communication between the ASP 400 and the user terminal 500 is performed using, for example, a dedicated line, the Internet, a mobile network, or the like.

  The location information communication terminal 100 includes a packet radio unit 110 which is a radio unit, a theft detection sensor unit 120, a GPS receiver unit 130, and an internal battery 140 as a backup power source. It also has a diode 150 for coupling the external power source and the internal battery 140, and a voltage detector 160 for monitoring the external power source.

  As related devices of the location information communication terminal 100, an anti-theft mode setting means 210, a door open / close detector 220 for theft detection, an engine-on detector 230, and a satellite signal for the GPS receiver unit 130. Are connected to a GPS antenna 260 for receiving the PDC antenna 270 for the packet radio unit 110 to perform wireless communication. Note that PDC (Personal Digital Cellular telecommunication system) is an abbreviation for a digital system based on a digital automobile telephone system standard.

  The theft detection sensor unit 120 inputs the built-in inclination detection signal of the inclination detector 122, the vibration detection signal of the vibration detector 124, and the acceleration detection signal of the acceleration detector 126 to the coupling circuit 128. Further, a door opening / closing detection signal from a door opening / closing detector 220 provided outside the position information communication terminal 100 and an engine on (starting position) detection signal from an engine-on detector 230 are connected to terminals P2, Input to the coupling circuit 128 via P3. The coupling circuit 128 outputs a theft detection signal THdet when any of the input detection signals is detected.

  The inclination detector 122 to the acceleration detector 126, the door opening / closing detector 220, and the engine-on detector 230 are used for vehicle inclination, vibration, acceleration, door opening / closing, key switch insertion or rotation. Are detected, and their detection signals are generated. Therefore, since the detection is performed at the stage of a sign of theft before the vehicle is actually stolen, the distress can be detected at an early stage. Further, the theft detection sensor unit 120 may be operated constantly, but may be operated only when the anti-theft mode is set. This can be easily performed by applying the anti-theft mode setting signal THmode to the anti-theft sensor unit 120.

  The GPS receiver unit 130 receives satellite signals from a plurality of navigation satellites by a GPS antenna 260 and inputs them via a terminal P5, and calculates and outputs a GPS signal Ginf including a position signal and a time signal based on the received signals. To do. The terminal P4 is an external terminal for outputting the GPS signal Ginf to the outside so that it can be used for other purposes. In addition, the GPS receiver unit 130 controls the calculation interval of the GPS signal Ginf by the GPS control signal Gcon from the packet radio unit 110. The calculation interval of the GPS signal Ginf is, for example, one calculation interval per second in the normal mode, but is set to a long calculation interval (for example, 10 to 30 seconds) in the power save mode.

  The packet radio unit 110 receives various detection signals, setting signals, command signals, and the like, and transmits information such as theft information and position information from the PDC control unit 112 for managing the control and the PDC control unit 112 And a PDC radio unit 114 for receiving information such as command information transmitted from the ASP 400.

  The PDC control unit 112 receives an anti-theft mode setting signal THmode set by the anti-theft mode setting unit 210, an anti-theft detection signal THdet, a GPS signal Ginf, and an external power-off signal Vdet indicating that the external power source has been cut off. In addition, a GPS control signal Gcon is output.

  The internal battery 140 backs up an external power source. An external power source having a predetermined voltage value is obtained by the adapter 250 for the voltage of the vehicle battery 240 and input to the position information communication terminal 100 via the terminal P6. The external power supply from the adapter 250 is connected to the internal power supply of the internal battery 140 through the backflow prevention diode 150 to become the operating power supply Vdd. The operation power supply Vdd is supplied to the packet radio unit 110, the theft detection sensor unit 120, and the GPS receiver unit 130. In addition, if there is a circuit portion that requires power, it is supplied in the same manner. Since the size of the internal battery 140 is reduced in order to reduce the size of the position information communication terminal 100 and make it compact, the capacity of the internal battery 140 is also significantly smaller than the capacity of the vehicle battery 240.

  The operating power supply Vdd of the location information communication terminal 100 is always covered by the current from the vehicle battery 240. The internal battery 140 is floatingly charged in an ordinary state by an external power source. If the vehicle battery 240 is disconnected by an unauthorized person or the like, the operating power supply Vdd is supplied from the internal battery 140. In addition, the voltage detector 160 detects that the external power supply from the vehicle battery 240 has been cut off, and notifies the external radio power cut-off signal Vdet to the packet radio unit 110 or the GPS receiver unit 130 if necessary. When the external power-off signal Vdet is notified, necessary processing such as setting to the power save mode is performed.

  The position information communication terminal 100 configured as described above is extremely compact and has various functions such as communication according to the PDC standard, theft detection, and GPS reception. It can be configured to be lightweight. Exemplified with approximate numerical values, the dimensions are about 60 mm in width, 90 mm in height, and about 25 mm in thickness, and the weight is about 120 g at most. Therefore, it can be installed in a place where it cannot be easily found by an unauthorized person who steals the vehicle. Therefore, it is suitable as the location information communication terminal 100 for theft prevention.

  Hereinafter, the operation of the anti-theft system of the present invention and the information communication terminal therefor will be described.

  Since the anti-theft mode setting signal THmode is canceled when the vehicle is in operation, the packet radio unit 110 is not operating. However, the GPS receiver unit 130 operates in a normal state during operation, and the GPS signal Ginf is constantly updated. The GPS signal Ginf is supplied from the terminal P4 to the outside, and is supplied so that the packet radio unit 110 can receive the GPS signal Ginf.

  When the vehicle arrives at a parking lot or the like and the driver leaves the vehicle, the engine is stopped and the door is locked. At this time, the anti-theft mode setting signal THmode is set by the anti-theft mode setting means 210.

  The anti-theft mode setting means 210 is simply constituted by a manual switch, and the anti-theft mode setting signal THmode is set by operating this switch. The anti-theft mode setting signal THmode may be set in conjunction with the operation of the door key. In the case of an electronic key, the anti-theft mode setting signal THmode may be set by operating the anti-theft mode setting means 210 in accordance with a lock signal from the electronic key. The anti-theft mode setting signal THmode is canceled by the reverse operation. This can also be done by including setting or canceling the anti-theft mode setting signal THmode in the command information REQ from the user terminal 500 via the ASP 400.

  When the anti-theft mode setting signal THmode is set, it is supplied to the PDC control unit 112. As a result, the packet radio unit 110 becomes operable. The theft detection sensor unit 120 is in an operable state when the operation is stopped during normal times. On the other hand, the GPS receiver unit 130 is brought into an operation stop state in consideration of exhaustion of the vehicle battery when parking is performed for a long period of time. The GPS signal Ginf is always the latest information because the vehicle does not move during parking immediately before the operation is stopped. The latest information may be stored in the GPS receiver unit 130 or stored in the PDC control unit 112 so that it can be used when necessary.

  During this parking, the packet radio unit 110 and the theft detection sensor unit 120 are in an operating state, but since the packet radio unit 110 is in a standby state, its power consumption is low, and the theft detection sensor unit 120 outputs a detection signal. Because it only monitors, its power consumption is low. Therefore, since the power consumption of the vehicle battery 240 is extremely small, there is no problem even when parking for a long time.

  In the parked state, when an unauthorized person tries to steal the vehicle and opens or closes the door, the door open / close detector 220 detects this. Further, when the engine is turned on by some means, the engine-on detector 230 detects this. In addition, when the vehicle is towed by a tow truck or transported / moved by a truck or the like, the inclination detector 122, the vibration detector 124, and the acceleration detector 126 operate to detect it. When any one of these detectors operates, a theft detection signal THdet is supplied from the coupling circuit 128 to the PDC control unit 112.

  Upon receiving the theft detection signal THdet, the PDC control unit 112 immediately transmits the theft information from the PDC wireless unit 114 to the ASP 400 via the packet communication network 300. The ASP 400 notifies the user terminal 500 of theft information.

  In addition, the position information at this time is not updated for a long time, but is still the position information measured immediately before parking, and is stored in the PDC control unit 112 or the like. Therefore, when receiving the theft detection signal THdet, the PDC control unit 112 immediately notifies the user terminal 500 of the theft information from the PDC wireless unit 114. In addition to the theft information, it is desirable to notify the user terminal 500 of the position information based on the immediately preceding position signal obtained at that time. Thus, when the theft detection signal THdet is received, the vehicle is concealed in a place where GPS reception is not possible within a short time after the theft by notifying the theft information and the immediately preceding position information. The place can be specified.

  The PDC control unit 112 receives the theft detection signal THdet, supplies the GPS control signal Gcon to the GPS receiver unit 130, operates the GPS receiver unit 130, and starts GPS positioning. However, the GPS receiver unit 130 needs a certain amount of time (usually several tens of seconds or more) to reach the distance measurement, but the position information measured immediately before parking is the current position information, along with theft information, Users can be notified immediately.

  Thereafter, in order to track the location of the stolen vehicle, it is necessary to notify the ASP 400 and the user terminal 500 of location information at predetermined intervals (time or distance).

  For this purpose, the packet radio unit 110 is provided with a distance contention function and a time contention function. Using this contention function, the updated position information is reported to the ASP 400 and the user terminal 500 every time a set time elapses or every set distance is moved.

  The tracking state using this distance contention function is shown in FIG. Every time the stolen vehicle Tcar moves by the set predetermined distance L1, the updated position information at that time is reported. From this position information, the user terminal 500 can grasp the current position, the traveling method, and the traveling speed of the stolen vehicle Tcar.

  FIG. 3 shows a tracking state using the time contention function. Every time the stolen vehicle Tcar moves for a set time T1, the position information updated at that time is reported. Similarly, from this position information, the user terminal 500 can grasp the current position, traveling direction, and traveling speed of the stolen vehicle Tcar.

  FIG. 4 shows a case where the predetermined time T is gradually shortened as shown in the figure according to the tracking state in the tracking state using the time contention function (T1> T2> T3>). T4). The change of the predetermined time T can be set to an arbitrary time based on a command from the user terminal 500. Then, the predetermined time T is changed according to the tracking situation. For example, as the distance from the stolen vehicle Tcar becomes shorter, the predetermined time is shortened, so that the stolen vehicle can be more easily pursued. Although FIG. 4 shows the tracking state using the time contention function, even in the tracking state using the distance contention function, the tracking can be similarly performed by shortening the predetermined distance L gradually. .

  Next, a case where an external power source from the vehicle battery 240 is cut off after the vehicle is stolen by an unauthorized person will be described. It is also assumed that the power from the vehicle battery 240 is cut off after an unauthorized person steals the vehicle.

  The present invention has an internal battery 140 as an internal power source for backing up an external power source from the vehicle battery 240. When power from the vehicle battery 240 is cut off, operating power is supplied from the internal battery 140 to the theft detection sensor unit 20, the GPS receiver unit 130, and the packet radio unit 110. Therefore, even if an unauthorized person thinks that the anti-theft device has been invalidated, since the stolen vehicle is continuously tracked, there is a high possibility that the stolen vehicle can be found.

  Note that the capacity of the internal battery 140 is smaller than the capacity of the vehicle battery 240 in order to reduce the size of the position information communication terminal 100 and make it compact. Therefore, in preparation for the case where the tracking time becomes long, the packet radio apparatus unit 110 and the GPS receiver unit 130 are notified that the input of the external power supply is cut off, and the operation of the packet radio unit 110 and the GPS receiver unit 130 is performed. It is desirable to control the power saving mode. In the power save mode, the calculation interval may be changed to a long interval (for example, 10 to 30 seconds).

  The internal battery 140 is connected via a diode 150 so as to be float-charged in a normal state by an external power source. Therefore, when the vehicle battery 240 is disconnected by an unauthorized person or the like, it is possible to detect that the external power source has been cut off only by detecting the voltage with the voltage detector 160. Then, the external power-off signal Vdet from the voltage detector 160 is notified to the packet radio unit 110 and the GPS receiver unit 130 if necessary. When the external power-off signal Vdet is notified, necessary processing such as setting to the power save mode is performed.

  Next, the anti-theft system and the information communication terminal device 100 that can cope with a case where an unauthorized person is stealing and the theft detection sensor unit 120 cannot detect the theft will be described.

  Even when the anti-theft mode setting signal THmode is set, the GPS receiver unit 130 is operated to perform positioning. That is, the GPS receiver unit 130 continues to operate regardless of the theft detection signal THdet. When the position detection signal included in the GPS signal Ginf from the GPS receiver unit 130 changes to an extent indicating vehicle movement, the packet radio unit 110 determines the theft and transmits the theft information and the position information. .

  In this case, it is necessary to reduce the consumption of the capacity of the vehicle battery 240 or the internal battery 140 in response to a theft that is not known when it occurs. Therefore, even if the vehicle battery 240 is not removed, monitoring is performed in the power save mode. In this case, the positioning interval at the GPS receiver unit 130 in the power save mode may be a longer time interval than when the vehicle is stolen and the vehicle battery 240 is removed.

  In this case, the determination as to whether or not the vehicle has been stolen is made by comparing the position detection signal from the GPS receiver unit 130 with the previous position signal (which may be a position signal at the time of parking), and the difference in position is an error in GPS positioning. If it exceeds, it may be determined that the theft has been stolen. The operation after the theft determination may be performed in the same manner as described above.

  In FIG. 5, a GPS antenna 260 for the GPS receiver unit 130, a PDC antenna 270 for the packet radio unit 110, and an anti-theft mode setting unit 210 are integrally formed in the location information communication terminal 100A. It is what I did. Other configurations are the same as those in FIG.

  As shown in FIG. 5, the GPS antenna 260, the PDC antenna 270, and the anti-theft mode setting unit 210 are formed integrally with the location information communication terminal 100A, so that the GPS antenna 260, the PDC antenna 270, etc. It becomes difficult to be discovered.

  If the anti-theft mode setting means 210 is of a type that once sets the anti-theft mode, the anti-theft mode setting means is not released even if the anti-theft mode setting means 210 is removed. It may be outside the information communication terminal 100A. In addition, the door open / close detector 220 and the engine-on detector 230 can be configured to output detection signals when they are removed. The vehicle battery 240 and the adapter 250 are backed up by the internal battery 140 even if they are removed.

  Therefore, as shown in FIG. 5, the GPS antenna 260 and the PDC antenna 270 are integrally formed with the location information communication terminal 100 </ b> A, so that a further effect for preventing theft can be obtained.

The figure which shows the structure of the antitheft system of this invention, and the information communication terminal for it Diagram showing tracking status using distance contention function Diagram showing tracking state using time contention function Diagram showing tracking status using other time contention functions The figure which shows the structure of the other anti-theft system of this invention, and the information communication terminal for it

Explanation of symbols

100 position information communication terminal 110 packet radio unit 112 PDC control unit 114 PDC radio unit 120 theft detection sensor unit 122 tilt detector 124 vibration detector 126 acceleration detector 128 coupling circuit 130 GPS receiver unit 140 internal battery 150 diode 160 voltage Detector 210 Anti-theft mode setting means 220 Door open / close detector 230 Engine-on detector 240 Vehicle battery 250 Adapter 260 GPS antenna 270 PDC antenna 300 Packet communication network 400 ASP
500 User terminal THmode Anti-theft mode setting signal THdet Anti-theft detection signal Ginf GPS signal Gcon GPS control signal Vdet External power-off signal Vdd Operation power source Tcar Theft vehicle

Claims (19)

An information communication terminal that is mounted on a vehicle and transmits / receives information including theft information and position information by a radio signal, and the information communication terminal is coupled to the information communication terminal via a wireless communication network, and information is transmitted between the user terminal and the terminal. An anti-theft system having a monitoring center for communicating,
The information communication terminal is
A theft detection sensor for detecting signs of vehicle theft and outputting a theft detection signal;
A GPS receiver unit for receiving satellite signals from a plurality of navigation satellites and outputting GPS signals including position signals and time signals;
A radio unit for transmitting the theft information and position information based on the theft detection signal and the GPS signal and receiving information sent from the monitoring center;
When the information communication terminal is set to the anti-theft mode by the anti-theft mode setting means, the anti-theft sensor unit, the GPS receiver unit and the radio unit are all in an operable state, and between the monitoring center Anti-theft system, characterized in that information can be sent and received over the Internet. The information communication terminal receives an external power source of a predetermined voltage from a vehicle battery, and the external power source is supplied to the theft detection sensor unit, the GPS receiver unit, and the radio unit as an operating power source, and the external power source The antitheft system according to claim 1, further comprising an internal battery as an internal power source for backing up the battery. When the input of the external power supply is cut off, the operation power is supplied from the internal battery to the theft detection sensor unit, the GPS receiver unit and the radio unit,
The theft according to claim 2, wherein at least the radio is notified that the input of the external power source has been cut off, and the operations of the radio unit and the GPS receiver unit are controlled to a power save mode. Prevention system. The wireless device unit immediately transmits the theft information when the theft detection signal is output when the information communication terminal is set in the antitheft mode. Anti-theft system. When the anti-theft mode is output when the information communication terminal is set in the anti-theft mode, the radio immediately responds to the position based on the anti-theft information and the previous position signal obtained at that time. 4. The anti-theft system according to claim 1, wherein information is transmitted. 6. The theft according to claim 4, wherein when the information communication terminal is set in the anti-theft mode, the operation of the GPS receiver unit is started when the theft detection signal is output. Prevention system. The anti-theft system according to claim 6, wherein the position information is transmitted based on a position signal obtained at that time at a predetermined distance or every predetermined time. The anti-theft system according to claim 7, wherein the predetermined distance or the predetermined time can be set at an arbitrary interval based on a command from the user terminal. The anti-theft system according to claim 1, wherein the anti-theft mode is set and canceled based on a command from the user terminal. When the information communication terminal is set in the anti-theft mode, the radio unit and the GPS receiver unit are operated regardless of the theft detection signal, and the position detection signal from the GPS receiver unit is moved by the vehicle. The antitheft system according to any one of claims 1 to 3, wherein the radio unit determines that the theft has been stolen, and transmits the theft information and the position information when the degree of change is changed. An information communication terminal mounted on a vehicle and capable of transmitting / receiving information including theft information and position information to / from the outside with a radio signal,
A theft detection sensor for detecting signs of vehicle theft and outputting a theft detection signal;
A GPS receiver unit for receiving satellite signals from a plurality of navigation satellites and outputting GPS signals including position signals and time signals;
A radio unit for transmitting the theft information and position information based on the theft detection signal and the GPS signal and receiving information sent from the outside;
When the information communication terminal is set to the anti-theft mode by the anti-theft mode setting means, the anti-theft sensor unit, the GPS receiver unit, and the radio unit are all operable, and between the outside An information communication terminal characterized in that information can be transmitted and received. An external power source of a predetermined voltage is input from the vehicle battery, and the external power source is supplied as an operating power source to the theft detection sensor unit, the GPS receiver unit, and the radio unit, and is used to back up the external power source. The information communication terminal according to claim 11, further comprising an internal battery as a power source. When the input of the external power supply is cut off, the operation power is supplied from the internal battery to the theft detection sensor unit, the GPS receiver unit and the radio unit,
13. The information according to claim 12, wherein at least the radio device is notified that the input of the external power source has been cut off, and the operations of the radio device unit and the GPS receiver unit are controlled to a power save mode. Communication terminal. 14. The information communication terminal according to claim 11, wherein, when the anti-theft mode is set, if the anti-theft signal is output, the wireless device immediately transmits the anti-theft information. When the theft detection signal is output when the antitheft mode is set, the wireless device immediately transmits the position information based on the theft information and the immediately preceding position signal obtained at that time. The information communication terminal according to claim 11, wherein: 16. The information communication terminal according to claim 14 or 15, wherein when the anti-theft detection signal is output when the anti-theft mode is set, the operation of the GPS receiver unit is started. 17. The information communication terminal according to claim 11, wherein the anti-theft mode is set and canceled based on an instruction from the outside. When the anti-theft mode is set, the radio unit and the GPS receiver unit are operated regardless of the anti-theft detection signal, and the position detection signal from the GPS receiver unit changes to an extent indicating vehicle movement. 14. The information communication terminal according to claim 11, wherein the wireless device unit determines that the theft has been stolen and transmits the theft information and the position information. 20. The information communication terminal according to claim 11, wherein a GPS antenna for the GPS receiver unit and a transmission / reception antenna for the radio unit are integrally formed.