Vehicle theft prevention device

• US 6,831,597 B2
• Filed: 08/15/2002
• Issued: 12/14/2004
• Est. Priority Date: 08/16/2001
• Status: Expired due to Fees

• Current Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Original Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Inventors: Sasaki, Yoshihiro, Yoshimura, Minoru
• Primary Examiner(s): PHAN, DAO LINDA
• Application Number:
  US10/219,867
• Publication Number:
  US 20030034915A1
• Time in Patent Office: 852 Days
• Field of Search: 342/357.01, 342/357.07, 342/357.09, 342/357.13, 701/213, 701/215
• US Class Current: 342/357.46
• CPC Class Codes: B60R 2325/205 Mobile phones
• CPC Class Codes: B60R 25/102 a signal being sent to a remote location, e.g. a radio signal being transmitted to a police station, a security company or the owner
• CPC Class Codes: B60R 25/33 of global position, e.g. by providing GPS coordinates
• CPC Class Codes: G01S 19/16 Anti-theft; Abduction

Abstract

There is provided a vehicle theft prevention device including a navigation device to detect the position of a vehicle on the earth, a security device to detect that the vehicle has been stolen, and an automobile telephone to transmit the position of the vehicle to a monitoring center after the detection of the theft of the vehicle. When the security device does not detect the theft of the vehicle, a position of the vehicle periodically detected by the navigation device is stored in a memory of the security device. When the theft of the vehicle is detected by the security device, the latest information of the vehicle stored in this memory is transmitted to the monitoring center by the automobile telephone, and the monitoring center can immediately determine the theft and the position of the stolen vehicle.

Claims

1. A theft prevention device comprising:

a position detecting device detecting a position of a vehicle on the earth;

a security control unit detecting theft of the vehicle;

a position storing memory periodically storing a position of the vehicle detected by the position detecting device even when the security control unit does not detect said theft; and

a transmitting device transmitting the latest positional information stored in the position storing memory when the security control unit detects said theft.

5. A theft prevention device according to claim 1, wherein the security control unit judges that the vehicle has been stolen when a position of the vehicle is greatly different from the previously detected position of the vehicle in the case of periodically detecting a position of the vehicle by the position detecting device.

7. A theft prevention device according to claim 1, wherein the position detecting device turns on an electric power source of a circuit necessary for periodically detecting a position of a vehicle and detects the position of the vehicle even in an alert state in the vehicle after the vehicle has stopped or in a state in which the position detecting device does not operate.

8. A theft prevention device according to claim 1, wherein the transmitting device periodically transmits the latest positional information stored in the position storing memory even after the completion of the first transmission.

9. A theft prevention device according to claim 1, wherein the transmitting device transmits a signal to a monitoring center which monitors the vehicle theft and the abnormal state of the position detecting device at all times when a vehicle theft or the abnormal state of the position detecting device is detected.

10. A theft prevention device according to claim 7, wherein a periodical transmitting period of transmitting a position of the vehicle by the transmitting device is different from a position detecting period of detecting the position of the vehicle by the position detecting device.

2. A theft prevention device comprising:

a position detecting device detecting a position of a vehicle on the earth;

a security control unit detecting theft of the vehicle;

an abnormal state detecting device for detecting an abnormal state of the position detecting device;

a position storing memory periodically storing a position of the vehicle detected by the position detecting device even when the security control unit does not detect said theft; and

a transmitting device transmitting the latest positional information stored in the position storing memory when the abnormal state detecting device detects said abnormal state.

3. A theft prevention device comprising:

a position detecting device detecting a position of a vehicle on the earth;

a security control unit detecting theft of the vehicle;

a position storing memory storing a position of the vehicle detected by the position detecting device;

a transmitting device transmitting positional information stored in the position storing memory when the security control unit detects theft of the vehicle; and

wherein the position storing memory is accoimnodated in a casing which is separate from a casing in which the position detecting device is accommodated.

4. A theft prevention device comprising:

a first position detecting device in which GPS is utilized;

a position storing memory storing a position of a vehicle detected by the first position detecting device;

a second position detecting device for detecting a position of the vehicle by using a movement parameter of the vehicle and also using an azimuth parameter based on terrestrial magnetism; and

a transmitting device transmitting the positional information of the vehicle detected by the second position detecting device when the first position detecting device is out of order.

6. A theft prevention device comprising:

a position detecting device periodically detecting a position of a vehicle on the earth;

a security control unit judges that the vehicle has been stolen when the position detecting device does not operate in the case of periodically detecting a position of the vehicle by the position detecting device;

a position storing memory periodically storing a position of the vehicle detected by the position detecting device; and

a transmitting device transmitting the latest positional information stored in the position storing memory when the security control unit judges said theft.

11. A theft prevention device comprising:

a security control unit detecting theft of a vehicle;

a position storing memory periodically storing a position of the vehicle on the earth read out from a navigation system even when the security control unit does not detect said theft; and

a sending device for sending the latest positional information stored in the position storing memory to a transmitting device transmitting to a position out of the vehicle when the security control unit detects said theft.

12. A theft prevention device comprising:

a position detecting means for detecting a position of a vehicle on the earth;

a theft detecting means for detecting theft of the vehicle; and

a transmitting means, wherein after the theft detecting means detects theft of the vehicle, a position of the vehicle is detected by the position detecting means and transmitted to a predetermined position by the transmitting means,

the theft prevention device further comprising a position storing means for periodically storing a position of the vehicle detected by the position detecting means, wherein when the theft detecting means detects theft of the vehicle, the transmitting means transmits the latest positional information stored in the position storing means,

wherein at least the position storing means is accommodated in a casing which is separate from a casing in which the position detecting means is accommodated.

13. A theft prevention device comprising:

a position detecting means for detecting a position of a vehicle on the earth;

a theft detecting means for detecting theft of the vehicle; and

a transmitting means, wherein after the theft detecting means detects theft of the vehicle, a position of the vehicle is detected by the position detecting means and transmitted to a predetermined position by the transmitting means,

the theft prevention device further comprising;

a position storing means for periodically storing the position of the vehicle detected by the position detecting means; and

an abnormal state detecting means for detecting an abnormal state of the position detecting means wherein, when the abnormal state detecting means detects an abnormal state of the position detecting means, the transmitting means transmits the latest positional information stored in the position storing means,

wherein at least the position storing means is accommodated in a casing which is separate from a casing in which the position detecting means is accommodated.

14. A theft prevention device comprising:

a position detecting means for detecting a position of a vehicle on the earth;

a theft detecting means for detecting theft of the vehicle; and

a transmitting means, wherein after the theft detecting means detects theft of the vehicle, a position of the vehicle is detected by the position detecting means and transmitted to a predetermined position by the transmitting means,

the theft prevention device further comprising a position storing means for periodically storing a position of the vehicle detected by the position detecting means, wherein when the theft detecting means detects theft of the vehicle, the transmitting means transmits the latest positional information stored in the position storing means,

the position detecting means including;

a first position detecting means in which GPS is utilized; and

a second position detecting means for detecting a position of the vehicle by using a movement parameter of the vehicle and also using an azimuth parameter based on terrestrial magnetism wherein, when the first positional detecting means is out of order, the second positional detecting means detects a position of the vehicle on the basis of the latest positional information stored in the positional storing means, and the transmitting means periodically transmits the position of the vehicle.

15. A theft prevention device comprising:

a position detecting means for detecting a position of a vehicle on the earth;

a theft detecting means for detecting theft of the vehicle; and

a transmitting means, wherein after the theft detecting means detects theft of the vehicle, a position of the vehicle is detected by the position detecting means and transmitted to a predetermined position by the transmitting means,

the theft prevention device further comprising;

a position storing means for periodically storing the position of the vehicle detected by the position detecting means; and

an abnormal state detecting means for detecting an abnormal state of the position detecting means wherein, when the abnormal state detecting means detects an abnormal state of the position detecting means, the transmitting means transmits the latest positional information stored in the position storing means,

the position detecting means including;

a first position detecting means in which GPS is utilized; and

a second position detecting means for detecting a position of the vehicle by using a movement parameter of the vehicle and also using an azimuth parameter based on terrestrial magnetism wherein, when the first positional detecting means is out of order, the second positional detecting means detects a position of the vehicle on the basis of the latest positional information stored in the positional storing means, and the transmitting means periodically transmits the position of the vehicle.

16. A theft prevention device comprising:

a position detecting means for detecting a position of a vehicle on the earth;

a theft detecting means for detecting theft of the vehicle; and

a transmitting means, wherein after the theft detecting means detects theft of the vehicle, a position of the vehicle is detected by the position detecting means and transmitted to a predetermined position by the transmitting means,

the theft prevention device further comprising a position storing means for periodically storing a position of the vehicle detected by the position detecting means, wherein when the theft detecting means detects theft of the vehicle, the transmitting means transmits the latest positional information stored in the position storing means,

wherein the position detecting means turns on an electric power source of a circuit necessary for periodically detecting a position of a vehicle and detects the position of the vehicle even in an alert state of the vehicle after the vehicle has stopped or in a state in which the position detecting means does not operate,

wherein the theft detection means judges that the vehicle has been stolen when a position of the vehicle is greatly different from the previously detected position of the vehicle in the case of periodically detecting a position of the vehicle by the position detecting means.

17. A theft prevention device comprising:

a position detecting means for detecting a position of a vehicle on the earth;

a theft detecting means for detecting theft of the vehicle; and

a transmitting means, wherein after the theft detecting means detects theft of the vehicle, a position of the vehicle is detected by the position detecting means and transmitted to a predetermined position by the transmitting means,

the theft prevention device further comprising;

a position storing means for periodically storing the position of the vehicle detected by the position detecting means; and

an abnormal state detecting means for detecting an abnormal state of the position detecting means wherein, when the abnormal state detecting means detects an abnormal state of the position detecting means, the transmitting means transmits the latest positional information stored in the position storing means,

wherein the position detecting means turns on an electric power source of a circuit necessary for periodically detecting a position of a vehicle and detects the position of the vehicle even in an alert state of the vehicle after the vehicle has stopped or in a state in which the position detecting means does not operate,

wherein the theft detection means judges that the vehicle has been stolen when a position of the vehicle is greatly different from the previously detected position of the vehicle in the case of periodically detecting a position of the vehicle by the position detecting means.

18. A theft prevention device comprising:

a position detecting means for detecting a position of a vehicle on the earth;

a theft detecting means for detecting theft of the vehicle; and

a transmitting means, wherein after the theft detecting means detects theft of the vehicle, a position of the vehicle is detected by the position detecting means and transmitted to a predetermined position by the transmitting means,

the theft prevention device further comprising a position storing means for periodically storing a position of the vehicle detected by the position detecting means, wherein when the theft detecting means detects theft of the vehicle, the transmitting means transmits the latest positional information stored in the position storing means,

wherein the position detecting means turns on an electric power source of a circuit necessary for periodically detecting a position of a vehicle and detects the position of the vehicle even in an alert state of the vehicle after the vehicle has stopped or in a state in which the position detecting means does not operate,

wherein the theft detection means judges that the vehicle has been stolen when the position detecting means does not operate in the case of periodically detecting a position of the vehicle by the position detecting means.

19. A theft prevention device comprising:

a position detecting means for detecting a position of a vehicle on the earth;

a theft detecting means for detecting theft of the vehicle; and

a transmitting means, wherein after the theft detecting means detects theft of the vehicle, a position of the vehicle is detected by the position detecting means and transmitted to a predetermined position by the transmitting means,

the theft prevention device further comprising;

a position storing means for periodically storing the position of the vehicle detected by the position detecting means; and

an abnormal state detecting means for detecting an abnormal state of the position detecting means wherein, when the abnormal state detecting means detects an abnormal state of the position detecting means, the transmitting means transmits the latest positional information stored in the position storing means,

wherein the position detecting means turns on an electric power source of a circuit necessary for periodically detecting a position of a vehicle and detects the position of the vehicle even in an alert state of the vehicle after the vehicle has stopped or in a state in which the position detecting means does not operate,

wherein the theft detection means judges that the vehicle has been stolen when the position detecting means does not operate in the case of periodically detecting a position of the vehicle by the position detecting means.