JP2006160129A - Vehicle radio control system - Google Patents

Abstract

A vehicle radio control system capable of preventing a stolen vehicle is provided.
The vehicle radio control system 1 is for unlocking a car door and starting an engine with a radio signal from a key 3, and a first fingerprint sensor 3b for capturing an actual user's fingerprint on the key 3 side. And the first fingerprint collation unit 3c that collates the captured fingerprint with the fingerprint of a legitimate user registered in advance and the collation in the first fingerprint collation unit 3c match, the wireless signal is transmitted to the car. A transmitting unit 3e, and an unlocking unit 5d for unlocking the door when the radio signal is received by the receiving unit 5a, and a fingerprint of an actual user 2 The fingerprint sensor 5e, the second fingerprint collation unit 5f that collates the captured fingerprint with the registered regular user's fingerprint, the reception unit 5a receives the wireless signal, and the second fingerprint collation unit 5f If the matching matches, start the engine And a engine starting portion 5g for.
[Selection] Figure 1

Description

  The present invention relates to a vehicle radio control system for unlocking a predetermined vehicle door and starting an engine by a radio signal from a portable radio device.

  This type of vehicle radio control system includes remote keyless entry type (one-way communication type from portable radio side to vehicle side) and smart key type (two-way communication between portable radio side and vehicle side) Type).

  A conventional remote keyless entry type (first prior art) is configured as shown in FIG. 3, for example, and an automobile key 103 with a wireless function is used as a portable wireless device. Then, when the switch 103a on the key 103 side is pressed, this becomes a trigger, and the encryption unit 103b encrypts the ID information registered in advance in the storage unit 103c on the key 103 side, and the encrypted ID information Is transmitted as a wireless signal from the 300 MHz band transmitting unit 103d on the key 103 side to the 300 Hz band receiving unit 105a on the in-vehicle device 105 side (vehicle side). When the wireless signal is received by the 300 MHz band receiving unit 105a on the in-vehicle device 105 side, the ID information is decrypted and verified from the received wireless signal by the decryption unit 105b and the ID verification unit 105c. As a result, when the ID information is registered in advance in the storage unit 105d on the in-vehicle device 105 side, the door of the car is unlocked by the unlocking unit 105e and the engine of the vehicle is started by the engine starting unit 105f. .

  A conventional smart key type (second prior art) is configured as shown in FIG. 4, for example, and a car key 103 with a wireless function is used as a portable wireless device, for example. When the user opens the door knob of the car while carrying the key 103, the opening operation to the door knob is detected by the door knob switch 105g on the in-vehicle device 105 side (vehicle side), which becomes a trigger. The trigger signal is transmitted from the 100 kHz transmission unit 105h on the in-vehicle device 105 side to the 100 kHz reception unit 103e on the key 103 side. When the trigger signal is received by the 100 MHz band receiving unit 103e on the key 103 side, the ID information pre-registered in the storage unit 103c on the key 103 side is encrypted by the encryption unit 103b and the encrypted information is encrypted. The ID information is transmitted as a radio signal from the 300 MHz band transmitting unit 103d on the key 103 side to the 300 MHz band receiving unit 105a on the in-vehicle device 105 side. When the wireless signal is received by the 300 MHz band receiving unit 105a on the in-vehicle device 105 side, the ID information is decrypted and verified from the received wireless signal by the decryption unit 105b and the ID verification unit 105c. As a result, when the ID information is registered in advance in the storage unit 105d on the in-vehicle device 105 side, the door of the car is unlocked by the unlocking unit 105e and the engine of the vehicle is started by the engine starting unit 105f. .

  In the first and second prior arts described above, if the ID information registered on the vehicle side (on-vehicle device 105 side) matches the ID information registered on the key 103 side, anyone can unlock the door and run the engine. Since the vehicle can be started, there is a drawback that if the key 103 is stolen, the vehicle can be easily boarded and driven to steal the car.

  Accordingly, an object of the present invention is to provide a vehicle radio control system that can prevent a vehicle from being stolen even if a key is stolen.

  In order to solve the above-mentioned problem, the invention described in claim 1 is a vehicle radio control system for unlocking a predetermined car door and starting an engine by a radio signal from a portable radio device, wherein the portable radio On the container side, the first capturing means for capturing the first user identification information of the actual user, the first user identifying information captured by the first capturing means, and the regular user registered in advance First verification means for verifying with the first user identification information; and transmission means for transmitting the radio signal to the vehicle side when verification by the first verification means matches, Receiving means for receiving a radio signal; unlocking means for unlocking the door when the radio signal is received by the receiving means; and second taking in the second user identification information of the actual user Means and the second take-in means Second verification means for verifying the registered second user identification information and second user identification information of a legitimate user registered in advance, the radio signal is received by the reception means, and the second verification means Engine starting means for starting the engine when the collation by is coincident.

  According to a second aspect of the present invention, the first and / or second user identification information is user biometric information.

  According to a third aspect of the present invention, the second taking-in means is installed in the vehicle.

  According to a fourth aspect of the present invention, the portable wireless device further includes encryption means for encrypting pre-registered ID information, and the transmitting device on the portable wireless device side is encrypted by the encryption means. Transmitting the converted ID information to the vehicle side as the wireless signal, and decoding the ID information from the wireless signal received by the receiving means on the vehicle side to the vehicle side, and the decoding ID collating means for collating the ID information decoded by the means with the regular ID information registered in advance, and the unlocking means on the vehicle side, when the collation by the ID collating means matches, The door is unlocked, and the engine starting means on the vehicle side starts the engine when the collation by the ID collating means coincides and the collation by the second collating means coincides.

  According to the first aspect of the present invention, the first user identification information of the actual user is captured on the portable wireless device side, and the first user identification information that has been captured is registered in advance by the authorized user's first user identification information. When it matches the one user identification information, a wireless signal is transmitted from the portable wireless device side to the vehicle side and the door is unlocked. Therefore, even if the portable wireless device is stolen, it can be prevented from getting on easily. Furthermore, when the second user identification information of the actual user is captured on the vehicle side, and the captured second user identification information matches the second user identification information of a regular user registered in advance. Since the engine is started, even if the portable wireless device is stolen, it can be prevented from being driven easily. These double user identification checks can prevent the car from being stolen even if the portable wireless device is stolen.

  According to the invention described in claim 2, since the first and second user identification information is the biometric information of the user, the first and second user identification information of the user is known to others. Therefore, even if the portable wireless device is stolen, it can be prevented from getting on and driving, and the car can be prevented from being stolen.

  According to the third aspect of the present invention, since the second taking-in means is installed in the vehicle, the second taking-in means is prevented from being tampered with and damaged and exposed to outside air to be naturally damaged. it can.

  According to the fourth aspect of the present invention, the ID information is registered on the portable radio device side, and the encrypted ID information is transmitted as a radio signal from the portable radio device side to the vehicle side. It is possible to prevent a car from being stolen by intercepting a radio signal from the device side to the vehicle side.

<First Embodiment>
As shown in FIG. 1, the vehicle radio control system 1 of this embodiment unlocks a predetermined car door and starts an engine by a radio signal from a portable radio device (here, a car key with a radio function) 3. A key 3 carried by the user and an in-vehicle device 5 that is mounted on the vehicle and controls unlocking of the door and starting of the engine in response to a radio signal from the key 3.

  The vehicle radio control system 1 is configured as a remote keyless entry type (one-way communication type from the key 3 side to the vehicle side).

  The key 3 includes a switch 3a for accepting an operation for unlocking the car door, and a first fingerprint sensor (first capture) for capturing an actual user's fingerprint (first user identification information, biometric information). Means) 3b, and a first fingerprint collation unit (first collation unit) 3c for collating a fingerprint captured by the first fingerprint sensor 3b with a fingerprint of a legitimate user registered in the storage unit 3g of the key 3 in advance. When there is an operation input to the switch 3a and the collation by the first fingerprint collation unit 3c matches, the ID information (here, the identification information of the regular key 3) registered in the storage unit 3g of the key 3 is obtained. An encryption unit (encryption unit) 3d for encryption, a transmission unit (transmission unit) 3e that transmits the ID information encrypted by the encryption unit 3d to the in-vehicle device 5 as a wireless signal of, for example, a 300 MHz band, Regular user And a storage unit 3g for storing the ID information of the fingerprint and said normal. Here, each part 3c, 3d is built in the microcomputer 3f.

  For the first fingerprint sensor 3b, for example, one having a simple configuration (excellent portability) of slide type, pressure-sensitive type, in-finger scattered light direct reading method, capacitance type semiconductor sensor method, or the like is used. .

  The in-vehicle device 5 includes a reception unit (reception unit) 5a that receives the wireless signal, a decryption unit (decryption unit) 5b that decrypts ID information from the wireless signal received by the reception unit 5a, and a decryption unit 5b. When the ID collation unit (ID collation unit) 5c that collates the ID information decrypted by the above and the regular ID information registered in advance in the storage unit (for example, EEPROM) 5h matches the collation by the ID collation unit 5c. An unlocking part (unlocking means) 5d for unlocking the door, a second fingerprint sensor (second capturing means) 5e for capturing the actual user's fingerprint (second user identification information, biometric information), A second fingerprint collation unit (second collation unit) 5f that collates a fingerprint captured by the second fingerprint sensor 5e with a regular user's fingerprint registered in advance in the storage unit 5h, and the collation by the ID collation unit 5c. Matches An engine starter (engine starter) 5g for starting the engine when the verification by the second fingerprint verification unit 5f matches, and a storage unit 5h for storing the fingerprint of the authorized user and the authorized ID information Is provided. Here, each part 5b, 5c, 5f, 5d, 5g is built in the microcomputer 5i.

  The second fingerprint sensor 5e is installed, for example, in the vicinity of the driver's seat in the vehicle. As the second fingerprint sensor 5e, for example, a high-performance one (high collation accuracy) among a slide type, a pressure-sensitive type, a direct finger scattered light reading method, a capacitance type semiconductor sensor method, or the like is used.

  Next, the operation of the vehicle radio control system 1 will be described.

  First, the actual user takes the fingerprint into the first fingerprint sensor 3b on the key 3 side, and the actual user pushes and operates the switch 3a on the key 3 side. Then, on the key 3 side, the captured fingerprint and the fingerprint of the authorized user registered in advance in the storage unit 3g are collated by the first fingerprint collation unit 3c. When the collation matches, the push operation of the switch 3a is valid. On the other hand, when the collation does not coincide, the push operation of the switch 3a is invalid. When the push operation of the switch 3a is valid, the push operation of the switch 3a is a trigger, and the ID information pre-registered in the storage unit 3g is encrypted by the encryption unit 3d, and the transmission unit 3e The encrypted ID information is transmitted, for example, as a 300 MHz band radio signal to the receiving unit 5a on the in-vehicle device 5 side.

  When the wireless signal is received by the receiving unit 5a on the in-vehicle device 5 side, the ID information is decoded from the received wireless signal by the decryption unit 5b, and the decoded ID is received by the ID verification unit 5c. The information is collated with the regular ID information registered in advance in the storage unit 5h. If the collation does not match, the received radio signal is invalid because it is not a radio signal from the regular key 3. On the other hand, if the collation matches, the received radio signal is a legitimate key. 3 becomes effective as a wireless signal from 3 and the door of the car is unlocked by the unlocking portion 5d. Then, when the door of the car is unlocked, the actual user gets on the car from the door.

  In the vehicle, when the actual user causes the second fingerprint sensor 5e installed in the vehicle to capture the fingerprint, the fingerprint is stored in the storage unit 5h in advance by the second fingerprint verification unit 5f. The registered fingerprint of the authorized user is verified. If the match does not match, the received radio signal is invalid as not being based on the use of a legitimate user, whereas if the match matches, the received radio signal is not legitimate. The engine of the vehicle is started by the engine starting unit 5g, which is effective based on the use by the user. In this way, the door of the car is unlocked and the engine is started.

  According to the vehicle radio control system 1 configured as described above, the first user identification information (fingerprint here) of the actual user is captured on the portable radio device (here, the key 3) side, and the captured first When the first user identification information matches the first user identification information of a legitimate user registered in advance, a radio signal is transmitted from the portable wireless device (key 3) side to the vehicle side and the door is unlocked. Therefore, even if the portable wireless device (key 3) is stolen, it can be prevented from being easily boarded. Further, the second user identification information (in this case, the fingerprint) of the actual user is captured on the vehicle side, and the second user identification information of the authorized user in which the captured second user identification information is registered in advance. Since the engine is started when it matches (here, fingerprint), even if the portable wireless device (key 3) is stolen, it can be prevented from being driven easily. These double user identification checks can prevent the car from being stolen even if the portable wireless device (key 3) is stolen.

  In addition, since the first and second user identification information is user biometric information (in this case, a fingerprint), the user's first and second user identification information is known to others. Thus, even if the portable wireless device (key 3) is stolen, it can be prevented from getting on and driving, and the car can be prevented from being stolen.

  Further, since the second fingerprint sensor 5e (second take-in means) is installed in the vehicle, it is possible to prevent the second fingerprint sensor 5e from being tampered with and damaged and exposed to the outside air to be naturally damaged.

  Since the ID information is registered on the portable radio device (key 3) side, and the encrypted ID information is transmitted as a radio signal from the portable radio device (key 3) side to the vehicle side, the portable radio device A wireless signal from the (key 3) side to the vehicle side can be intercepted and the vehicle can be prevented from being stolen.

  In this embodiment, user biometric information (in this case, fingerprint) is used as the first and second user identification information. However, as other information, for example, a special operation procedure for a specific in-vehicle device. Or an operation method may be used. That is, for example, when a special operation procedure for various switches of a predetermined in-vehicle device is used as the second user identification information, an operation procedure for various switches of the predetermined in-vehicle device is used instead of the second fingerprint sensor 5e. When the operation procedure of various switches detected by the sensor matches the operation procedure registered in advance, the radio signal received by the receiving unit 5a is based on the use of an authorized user. It should be.

  In this embodiment, the user's fingerprint is used as the biometric information. However, other biometric information such as the user's voice print, iris print, and retinal print may be used.

<Second Embodiment>
The vehicle radio control system 1 according to the first embodiment is configured as a remote keyless entry type (one-way communication type from the key side to the vehicle side), but the vehicle according to the second embodiment. The control system 1B is configured as a smart key type (two-way communication type between the key side and the vehicle side).

  The in-vehicle device 5B of this embodiment is different from the in-vehicle device 5 of the first embodiment in that the door knob switch 5j detects the opening operation of the door knob of the vehicle and the opening operation of the door knob of the vehicle by the door knob switch 5j. Is detected, except that it further includes a transmitter 5k that transmits a trigger signal as a radio signal in the 100 kHz band, for example, to the key 3 side.

  Compared with the key 3 of the first embodiment, the portable key 3B of this embodiment is provided with a receiving unit 3h that does not have the switch 3a and that receives the trigger signal from the in-vehicle device 5B side. The difference is that the ID information registered in the storage unit 3g of the key 3B in advance is encrypted by the encryption unit 3d when the trigger signal is received by the unit 3h and the verification by the first fingerprint verification unit 3c matches. Are constructed similarly.

  Next, the operation of the vehicle radio control system 1B will be described.

  First, an actual user takes the fingerprint into the first fingerprint sensor 3b on the key 3B side, and the actual user opens the door knob of the car while carrying the key 3B.

  Then, on the key 3B side, the captured fingerprint and the fingerprint of the authorized user registered in advance in the storage unit 3g are collated by the first fingerprint collation unit 3c. On the other hand, on the vehicle-mounted device 5B side (vehicle side), the door knob opening operation is detected by the door knob switch 5j, and this is used as a trigger. Wirelessly transmitted.

  When the trigger signal is received by the receiving unit 3h on the key 3B side, if the collation by the first fingerprint collation unit 3c matches, the received trigger signal is valid, while the first fingerprint is collated. If the verification by the verification unit 3c does not match, the received trigger signal is invalid. When the received trigger signal becomes valid, the reception of the trigger signal is a trigger, and the ID information pre-registered in the storage unit 3g is encrypted by the encryption unit 3d, and the transmission unit 3e The encrypted ID information is transmitted to the receiving unit 5a on the in-vehicle device 5B side, for example, as a wireless signal in the 300 MHz band.

  When the wireless signal is received by the receiving unit 5a on the in-vehicle device 5B side, the ID information is decrypted from the received wireless signal by the decryption unit 5b, and the decrypted ID is received by the ID verification unit 5c. The information is collated with the regular ID information registered in advance in the storage unit 5h. If the collation does not match, the received radio signal is invalid because it is not a radio signal from the regular key 3B. On the other hand, if the collation matches, the received radio signal is a legitimate key. It becomes effective as a radio signal from 3B, and the door of the car is unlocked by the unlocking portion 5d. Then, when the door of the car is unlocked, the actual user gets on the car from the door.

  In the vehicle, when the actual user causes the second fingerprint sensor 5e installed in the vehicle to capture the fingerprint, the fingerprint is stored in the storage unit 5h in advance by the second fingerprint verification unit 5f. The registered fingerprint of the authorized user is verified. If the match does not match, the received radio signal is invalid as not being based on the use of a legitimate user, whereas if the match matches, the received radio signal is not legitimate. The engine of the vehicle is started by the engine starting unit 5g, which is effective based on the use by the user. In this way, the door of the car is unlocked and the engine is started.

  Also in the vehicle radio control system 1B configured as described above, the same effects as those of the vehicle radio control system 1 of the first embodiment are obtained.

  In this embodiment, the trigger signal is transmitted when the door knob switch 5j is used to detect the opening operation of the door knob by the user. However, instead of the door knob switch 5j, the user uses the touch sensor to connect the door knob. A trigger signal may be transmitted when touched, or a trigger signal may be transmitted when a user approaches a certain range of the doorknob using an proximity sensor.

1 is a schematic configuration diagram of a vehicle radio control system according to a first embodiment of the present invention. It is a block schematic diagram of the vehicle radio control system according to the second embodiment of the present invention. 1 is a schematic configuration diagram of a vehicle radio control system according to a first prior art. It is a block schematic diagram of the vehicle radio control system according to the second prior art.

Explanation of symbols

1,1B Vehicle radio control system 3 Key (portable radio)
3a switch 3b first fingerprint sensor 3c first fingerprint verification unit 3d encryption unit 3e transmission unit 3f microcomputer 3g storage unit 3h reception unit 5, 5B vehicle-mounted device 5a reception unit 5b encryption unit 5c ID verification unit 5d unlocking unit 5e first 2 fingerprint sensor 5f 2nd fingerprint collation part 5g engine starting part 5h memory | storage part 5i microcomputer 5j doorknob switch 5k transmission part

Claims (4)

A vehicle wireless control system that unlocks a predetermined car door by a wireless signal from a portable wireless device and starts an engine,
On the portable radio side,
First capturing means for capturing the first user identification information of the actual user;
First verification means for verifying first user identification information captured by the first capture means and first user identification information of a regular user registered in advance;
Transmission means for transmitting the radio signal to the vehicle side when the collation by the first collation means matches,
On the car side,
Receiving means for receiving the radio signal;
Unlocking means for unlocking the door when the radio signal is received by the receiving means;
A second capturing means for capturing the second user identification information of the actual user;
Second verification means for verifying second user identification information captured by the second capture means and second user identification information of a regular user registered in advance;
A vehicle radio control system, comprising: an engine starting unit that starts an engine when the radio signal is received by the receiving unit and the collation by the second collating unit coincides.   The vehicle radio control system according to claim 1, wherein the first and / or second user identification information is user biometric information.   The vehicle radio control system according to claim 1, wherein the second capturing unit is installed in the vehicle. The portable wireless device further comprises encryption means for encrypting pre-registered ID information,
The transmitting means on the portable wireless device side transmits the ID information encrypted by the encrypting means to the vehicle side as the wireless signal,
On the vehicle side, decoding means for decoding the ID information from the radio signal received by the receiving means on the vehicle side, ID information decoded by the decoding means, and regular ID information registered in advance ID collating means for collating further,
The unlocking means on the vehicle side unlocks the door when the collation by the ID collating means matches,
The engine starter on the vehicle side starts the engine when the collation by the ID collator matches and the collation by the second collator matches. The vehicle radio control system according to claim 1.

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