JP5336038B2 - Auto theft prevention system - Google Patents

Description

  The present invention relates to an antitheft system for an automobile, and more particularly to an antitheft system for an automobile that prevents the automobile from being stolen by a person other than the owner of the automobile.

  The number of car thefts was over 46,000 in 2005, and the number of cars stolen and escaped with the key inserted into the car's ignition switch was over 13,000 in 2005, 30 of all thefts. It is a little less than a percent. In addition, car theft pretending to be a rear-end collision while driving has also occurred. Various systems have been developed to prevent such car theft.

  Japanese Patent Laying-Open No. 2005-324579 (Patent Document 1) determines that a theft has occurred when a password is not input or when the input password does not match a preset password. In addition, it is described that it is difficult for the automobile to self-run by discharging the tire air to the outside and reducing the air pressure.

Japanese Patent Laid-Open No. 2005-324715 (Patent Document 2) discloses a theft by losing the function of a tire by driving an electromagnetic valve that exhausts the air of the tire of the vehicle to the outside when the sensor detects an abnormality of the vehicle. Preventing is described.
JP 2005-324579 A (summary, FIG. 3) JP 2005-324715 A (Summary, FIG. 1)

  In the anti-theft device for automobiles described in Patent Document 1 and Patent Document 2, the car is stolen while encountering the theft with the key inserted into the ignition switch of the automobile, or with a rear-end collision with the engine started. However, since the device cannot determine that the device is stolen, the air pressure cannot be reduced.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a vehicle antitheft system that prevents theft by preventing the vehicle from traveling regardless of whether or not the vehicle has been detected.

  The present invention relates to an anti-theft system for an automobile, and an air venting means for venting the tires of the automobile and a control for controlling the air venting means to vent the tires in response to a command from the owner of the automobile. Means.

  When the car owner notices that the car has been stolen, he / she can make the car unmovable by giving a command immediately, which can contribute to the prevention of theft.

  In a preferred embodiment, an authentication means for authenticating whether the car owner is driving, and in response to the authentication means authenticating that a person other than the car owner is driving, the car owner And a notification means for notifying to.

  The vehicle owner can disable the travel of the stolen vehicle by giving a command immediately upon receiving the notification of the theft.

  Preferably, the vehicle includes speed detecting means for detecting a running speed of the automobile, and the control means is configured to release the tire by the air releasing means according to the speed detected by the speed detecting means when receiving a command from the owner of the automobile. Change the amount.

  By changing the air bleed amount of the tire according to the running speed of the automobile, it is possible to prevent an unexpected accident caused by suddenly increasing the air bleed amount.

  In one embodiment, it includes setting means for automatically setting anti-theft, and the control means may be operated by a person other than the vehicle owner by the authentication means when anti-theft is automatically set by the setting means. In response to the authentication, control is performed so that the tire is deflated by the air venting means.

  When theft prevention is set and theft is detected, the tire can be immediately removed by removing the air from the tire regardless of the intention of the car owner.

  In another embodiment, when the anti-theft is not automatically set by the setting means, the control means controls the air to be deflated by the air bleed means in response to receiving a command from the owner of the vehicle. .

  Even when anti-theft is not set, if the car is stolen in front of the car owner, the car owner can immediately issue a command to prevent the theft.

  Preferably, a voice notification unit that notifies a warning by voice in accordance with the air venting control by the control unit is included. The voice notification means notifies the warning voice inside and outside the vehicle. By giving a warning to a person who has stolen the car, the car can be stopped immediately. Also. By issuing a warning sound to the outside of the car, a passerby can also be expected to report to the police, which can contribute to early criminal clearance.

  Preferably, the air venting means is provided in association with each tire of the automobile, and the control means changes the air venting amount of all tires of the automobile when receiving a command from the owner of the automobile. As a result, the same state as when all the tires are punctured can be obtained, so that the traveling of the automobile can be immediately stopped to prevent theft.

  Preferably, in response to a command from the owner of the automobile, a transmission unit that outputs an air vent signal output from the control unit, and a reception unit that is provided in association with the tire and that receives the air vent signal transmitted from the transmission unit. The air venting means is provided in association with the tire, and includes a valve for bleeding air from the corresponding tire in response to receiving the air vent signal by the receiving means.

  Preferably, the tire is mounted on a wheel, and the valve is provided on a tire mounting portion of the wheel so that air in the tire can be extracted.

  According to this invention, in response to a command from the owner of the vehicle, the vehicle can no longer be run by controlling the vehicle tires to be evacuated. You will have to throw away and run away, preventing theft.

  FIG. 1 is a block diagram showing an automobile antitheft system 1 according to an embodiment of the present invention. 1, the anti-theft system 1 includes a main body 10, an air vent control unit 20, and a valve 23 that operates as an air vent means. The main body 10 includes a main control unit 11 that operates as a control unit that controls the entire anti-theft system 1, an authentication unit 12 that operates as an authentication unit, an operation unit 13 that operates as a setting unit, and a speed that operates as a speed detection unit. It includes a detection unit 14, an internal transmission unit 15 that operates as a transmission unit, an external transmission unit 16 that operates as a notification unit, an external reception unit 17, and a voice guide unit 18 that operates as a voice notification unit.

  The authentication unit 12 authenticates whether the owner of the car has opened the door of the car and started the engine. That is, the authentication unit 12 registers in advance whether or not a regular key has been inserted, whether or not a pre-registered personal identification number has been input, and when the finger touches a predetermined position on the door or handle. Any means can be applied as long as it can authenticate the owner of the car, such as whether or not the fingerprint is the same as the fingerprint.

  When the authentication unit 12 cannot authenticate the vehicle owner, an authentication impossible signal is output to the main control unit 11. When the main control unit 11 receives the authentication disabling signal, the main control unit 11 determines that it is theft, and outputs a theft notification signal to the external transmission unit 16 to notify that the car has been stolen. The external transmission unit 16 transmits a theft notification signal to the base station 31 of the external communication line by a radio signal via the antenna 19. The base station 31 is connected to other base stations 32, 33..., And a theft notification signal is transmitted from the base station 33 closest to the mobile phone 36 possessed by the automatic owner 35. With this theft notification signal, the car owner 35 is notified by voice or mail that the car has been stolen.

  When the car owner 35 is notified of the theft of the car, the car owner 35 transmits an anti-theft signal by key operation of the mobile phone 36. The anti-theft signal is transmitted from the base station 33 to the main body 10 via the base station 31. In the main body 10, the external receiving unit 17 receives the anti-theft signal via the antenna 19 and outputs it to the main control unit 11.

  The main control unit 11 is provided with a vehicle traveling speed signal from the speed detection unit 14, and the main control unit 11 varies the amount of air extracted from the tires of the vehicle according to the traveling speed signal. An air vent signal is output to the internal transmitter 15. The internal transmission / reception unit 15 outputs an air vent signal to the air vent controller 20 by a radio signal or an optical signal.

  The air vent control unit 20 includes an internal reception unit 21 that operates as reception means, and a valve control unit 22. The internal receiver 21 receives an air vent signal transmitted as a radio signal or an optical signal from the internal transmitter 15 of the main body 10 and outputs it to the valve controller 22. The valve control unit 22 controls the valve 23 and the pump 25 according to the air vent signal so as to remove air from the tire and lower the air pressure. Since the tire has a high air pressure, it is possible to vent the tire by simply opening the valve 23 without providing the pump 25.

  The pump 25 is configured to be pressurized so that the air pressure in the tire is reduced to the original air pressure. Further, an air pressure detector 26 is provided for detecting the tire air pressure, and the detected air pressure signal is provided to the valve controller 22. The valve control unit 22 controls the valve 23 and the pump 25 so that the detected air pressure becomes a predetermined air pressure.

  The operation unit 13 is provided for setting the anti-theft mode, and the voice guide unit 18 uses a voice to indicate that the valve 23 and the pump 25 are venting air from the tire under the control of the air vent control unit 20. A warning is given to the theft by notifying.

  FIG. 2 is a cross-sectional view of the main part showing an example in which the air vent control unit 20, the valve 23, and the pump 25 included in the automobile antitheft system 1 are mounted on the wheel 40 of the tire 50.

  As shown in FIG. 2, the air vent control unit 20 is attached to the wheel 40 of the tire 50 together with the valve 23 and the pump 25. The wheel 40 includes a rim 41 on which a tire 50 is mounted, and an air vent control unit 20, a valve 23, and a pump 25 are attached to the inner surface of the rim 41. The valve 23 has a pipe 24 that passes through the rim 41 and vents the air in the tire 50, and has a valve that closes the pipe 24 and an actuator that opens and closes the valve, although not shown. Further, the air pressure detection unit 26 shown in FIG. 1 is arranged in the pipe 24 (not shown).

  When a control signal is given to the valve 23 and the pump 25 by the valve control unit 22, the valve that closes the pipe 24 of the valve 23 is gradually opened by the actuator, and the air in the tire 50 is exhausted by the pump 25. .

  The air vent control unit 20 needs to be supplied with a power supply voltage. However, a battery may be built in, or a generator may be attached to the wheel 40 to supply the power supply voltage to the air vent control unit 20. As a generator, for example, a rotating weight is attached to the tip of a rotating shaft to which a magnet is attached, and acceleration is applied as the tire 50 rotates, so that the rotating weight rotates, and from a coil wound around the magnet What generates electric power can be used. In addition, a thermoelectric generator may be used. Specifically, those described in JP-A-2005-22457 can be used.

  FIG. 3 is a flowchart for explaining the operation of the anti-theft system in one embodiment of the present invention.

  Next, with reference to FIG. 1 and FIG. 2, the specific operation | movement of the antitheft system of the motor vehicle in one Embodiment of this invention is demonstrated. The automobile antitheft system 1 operates while the automobile is stopped and running. The main control unit 11 determines whether or not the theft is detected by the authentication unit 12 in a step (abbreviated as SP in the drawing) SP1 shown in FIG. If a person other than the car owner 35 runs the car without permission, the authentication unit 12 cannot authenticate the car owner 35 and outputs a theft detection signal. When the theft is not detected, the process proceeds to step SP4.

  When the theft detection signal is output from the authentication unit 12, the external transmission unit 16 transmits the theft signal via the antenna 19 in step SP2. This theft signal is transmitted to the mobile phone 36 possessed by the car owner 35 via the base stations 31 and 33, and the car owner 35 is notified by voice or mail that the car has been stolen.

  In step SP3, the main control unit 11 determines whether or not the anti-theft mode is set. The anti-theft mode is set, for example, when the car owner 35 leaves the car, and is canceled while the car is driving. If it is determined that the anti-theft mode has been set, the voice guide unit 18 is activated in step SP5, for example, “The anti-theft mode has been set. , Bring it to the shoulder of the road. "

  The warning sound may be reported not only in Japanese but also in multilingual languages such as English, Chinese, Korean. Further, the warning sound may be notified not only inside the automobile but also outside the automobile. As a result, the passer-by can be informed that the stolen vehicle is running, and the passer-by can report to the police and the like, so the criminal clearance rate can be increased.

  The main control unit 11 determines the amount of decompression of the air in the tire based on the traveling speed of the automobile. That is, in step SP6, based on the detection signal of the speed detector 14, it is determined whether or not the traveling speed of the automobile exceeds 40 km / h. When it is determined that the speed exceeds 40 km / h, the voice guide unit 18 is activated in step SP7, and a warning sound “Dangerous. The tire has been deflated. Reduce the speed and approach the shoulder.” At the same time, in step SP8, a pressure reducing operation for reducing the air pressure is executed. That is, an air vent signal is transmitted from the internal transmitter 15 to the air vent controller 20.

  The air vent signal is received by the internal receiver 21, and the valve controller 22 controls the valve 23 and the pump 25 by the air vent signal to reduce the air pressure in the tire 50. However, if the amount of decompression is increased when the traveling speed exceeds 40 km / h, the traveling of the vehicle may become unstable and an accident may occur. Therefore, the amount of decompression is set to be small. As shown in FIG. 2, the valve control unit 22 controls the valve 23 and the pump 25 while referring to the air pressure detected by the air pressure detection unit 26 to slightly reduce the air in the tire 50 via the pipe 24. Remove air pressure one by one to reduce the air pressure.

  If it is determined in step SP6 that the traveling speed does not exceed 40 km / h, it is determined in step SP9 whether or not the traveling speed is within a range of 20 to 39 km / h. If it is determined that it is within the range, in step SP10, a warning sound of “Dangerous. The tire has been removed. In SP11, the pressure reducing operation is executed. At this time, since the traveling speed is in the range of 20 to 39 km / h, the pressure reduction amount is slightly increased.

  If it is determined in step SP9 that the traveling speed does not exceed the range of 20 to 39 km / h, it is determined in step SP12 whether or not the traveling speed is in the range of 10 to 29 km / h. In step SP13, a warning sound is issued from the voice guide unit 18 “Dangerous. The tire air is being removed. Reduce the speed and approach the shoulder.” In step SP14, the pressure is reduced. Perform the action. At this time, since the traveling speed is 10 to 29 km / h, the amount of pressure reduction is increased.

  If it is determined in step SP12 that the traveling speed does not exceed the range of 10 to 29 km / h, it is determined that the traveling speed is 10 km / h or less. The warning sound “Unable to drive. Unable to drive” is notified, and the decompression operation is executed in step SP16. At this time, since the traveling speed is 10 km / h or less, since the risk of an accident is small even if the amount of decompression is increased, the amount of decompression is maximized. In step SP17, it is determined whether or not it has been stopped. If it has not been stopped, the process returns to step SP6, and the processing in steps SP6 to SP17 is repeated.

  As described above, when the anti-theft mode is set and a person other than the car owner 35 drives the car, it is authenticated that the car owner is not 35 and the air pressure in the tire 50 is automatically set. Since the pressure is reduced, the automobile cannot be driven any further. If the air in the tire 50 is rapidly removed, a serious accident may occur. However, by gradually reducing the air pressure of the tire 50 in accordance with the traveling speed and giving a warning to that effect, a person who has stolen the car abandons driving and stops the car. When the vehicle is stopped, the air from the tire 50 is completely removed, so that the vehicle cannot be driven again. For this reason, a person who has stolen a car is forced to throw away the car and escape, and theft can be prevented.

  Next, an operation when the car owner 35 does not set the car antitheft system 1 to the antitheft mode will be described. Even when the anti-theft mode is not set, if it is determined in step SP1 that the theft has been detected, a theft signal is transmitted in step SP2. With this theft signal, a notification of theft is sent to the mobile phone 36 of the car owner 35. The car owner 35 operates a key indicating theft prevention from the mobile phone 36 in response to the notification of the theft. Then, a theft prevention command signal is transmitted from the mobile phone 36, and the signal is transmitted to the main body 10 via the nearby base stations 33 and 31. The external receiving unit 17 of the main body 10 receives the theft prevention command signal and outputs it to the main control unit 11.

  In step SP3, the main control unit 11 determines that the anti-theft mode is not set. In step SP4, when a theft prevention command signal is received, the processing in steps SP5 to SP17 is performed to reduce the air pressure of the tire 50, thereby making it impossible for the stolen vehicle to travel. In this way, theft can be prevented by preventing the vehicle from running. In step SP4, when it is determined that the theft prevention command signal has not been received, the process returns to step SP1, and the process waits until the theft is detected at step SP1 or until the theft prevention signal is received at step SP4.

  In step SP1, even if the authentication unit 12 does not detect theft, when a theft prevention signal is transmitted from the mobile phone 36, it can be detected in step SP4. Can be deflated. For example, while driving a car, a rear-end collision accident was caused intentionally from behind, and when the car owner 35 started the engine and got off the car and checked the back, the fellow of the person who caused the rear-end collision May run away in a car with the engine running. In such a case, if the automobile owner 35 immediately transmits a theft prevention signal by the mobile phone 36, the air of the tire 50 can be forcibly removed, so that the theft can be prevented.

  Moreover, you may enable it to set the pressurization mode which can pressurize the inside of the tire 50 with the pump 25. FIG. After the car was discovered after theft, it was discovered by switching from the anti-theft mode to the pressurization mode with the car stopped and pressurizing the tire 50 to the original air pressure to allow the car to run It is possible to prevent the subsequent movement from being hindered.

  Furthermore, since the air pressure is detected by the air pressure detection unit 26, when the air pressure is not sufficient during normal operation, the voice guide unit 18 indicates, “Normal operation is normal. You may make it guide with a voice guide like "No." In this case, a new transmitter may be provided in the air vent control unit 20, and a new receiver may be provided in the main body 10, so that information on the air pressure detected by the air pressure detection unit 26 is provided to the main control unit 11. .

  FIG. 4 is a view showing an example in which the automobile antitheft system 1 according to one embodiment of the present invention is mounted on an automobile.

  In FIG. 4, the main body 10 shown in FIG. 1 is arranged at an arbitrary position of the vehicle body 60 of the automobile, for example, at the center. Four tires 50a, 50b, 50c, and 50d are attached to the vehicle body 60. Each of the tires 50a, 50b, 50c, and 50d has an air vent control unit 20a, 20b, 20c, and 20d and valves 23a and 23b, respectively. , 23c, 23d and pumps 25a, 25b, 25c, 25d are attached.

  In this example, a theft prevention signal is given from the main body 10 to each of the air vent control units 20a, 20b, 20c, and 20d in response to detection of theft or a command from the automobile owner 35. Each air vent control unit 20a, 20b, 20c, 20d controls the corresponding valve 23a, 23b, 23c, 23d and pump 25a, 25b, 25c, 25d, respectively, and the air of the corresponding tire 50a, 50b, 50c, 50d. Pull out gradually.

  In this embodiment, when the theft of a car is detected, all the tires 50a, 50b, 50c, 50d are evacuated, so that all four wheels are punctured and it is possible to quickly recognize that it is a stolen car. It becomes possible and can contribute to early criminal clearance.

  In the embodiment shown in FIG. 4, the main body 10 is installed in the center of the vehicle body 60, but the main body 10 is configured to control the front tires 50 a and 50 b and the rear tires 50 c and 50 d separately. Then, each may be provided on the front wheel side and the rear wheel side.

  Furthermore, when the main body 10 is stolen, the tire 50a, 50b, 50c, and 50d are connected to the external transmitter 16 and the external receiver 17 shown in FIG. The air vent control units 20a, 20b, 20c, and 20d are built in, and even if the main body 10 is stolen, an instruction is given from the outside by the mobile phone 36, and the air of each tire 50a, 50b, 50c, 50d is vented. You may comprise so that it can control.

  In addition, by sticking a sticker such as “automatically deflates tire air when encountering theft” to an automobile equipped with the antitheft system 1 of one embodiment of the present invention. It can also have the effect of deterring theft.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

  The automobile antitheft system of the present invention can be used to prevent theft of automobiles such as passenger cars and commercial vehicles.

It is a block diagram which shows the antitheft system of the motor vehicle in one Embodiment of this invention. It is principal part sectional drawing which shows the example which mounted | wore the tire wheel with the air vent control part contained in the antitheft system of the motor vehicle in one Embodiment of this invention, and a valve | bulb. It is a flowchart for demonstrating operation | movement of the antitheft system in one Embodiment of this invention. It is a figure which shows the example which mounted the antitheft system of the motor vehicle in one Embodiment of this invention in the motor vehicle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Auto anti-theft system 10 Main body 11 Main control part 12 Authentication part 13 Operation part 14 Speed detection part 15 Internal transmission part 16 External transmission part 17 External reception part 18 Voice guide part 19 Antenna , 20, 20a, 20b, 20c, 20d Air vent control unit, 21 Internal receiving unit, 22 Valve control unit, 23, 23a, 23b, 23c, 23d Valve, 24 pipe, 25, 25a, 25b, 25c, 25d Pump, 26 Air pressure detection unit, 31, 32, 33 Base station, 35 Car owner, 36 Mobile phone, 40 wheel, 41 Rim, 50, 50a, 50b, 50c, 50d Tire, 60 Car body.

Claims (8)

A car anti-theft system,
Air bleeding means for bleeding air from the automobile tire;
In response to a command from the owner of the automobile, control means for controlling the air to be vented by the air vent means;
Along with the control of bleeding of the tire by the control means, the voice notification means for notifying the outside of the automobile that the air in the tire is being evacuated by voice,
The control means variably controls the air bleeding amount of the tire by the air bleeding means ,
Including speed detecting means for detecting the traveling speed of the automobile,
The anti-theft system for an automobile , wherein the control means changes an air bleeding amount of the tire by the air bleeding means according to a speed detected by the speed detecting means when receiving a command from an owner of the automobile. Authentication means for authenticating whether the owner of the car is driving;
The vehicle theft according to claim 1, further comprising notification means for notifying the owner of the car in response to the fact that a person other than the owner of the car is driving by the authentication means. Prevention system. Including setting means to automatically set anti-theft,
When the anti-theft is automatically set by the setting means, the control means is operated by the air vent means in response to being authenticated by the authentication means that a person other than the owner of the vehicle is driving. The antitheft system for an automobile according to claim 2 , wherein the system is controlled so as to remove air from the tire. The control means, when the anti-theft is not automatically set by the setting means, in response to receiving an instruction from the owner of the car, to control the air to be deflated by the air vent means; The anti-theft system for automobiles according to claim 3 . The anti-theft system for an automobile according to any one of claims 1 to 4 , wherein the audio notification means notifies the inside of the automobile that air in a tire has been removed. The air venting means is provided in association with each tire of the automobile,
The anti-theft system for automobiles according to any one of claims 1 to 5 , wherein said control means changes an air bleeding amount of all tires of said automobile when receiving an instruction from an owner of said automobile. In response to a command from the owner of the automobile, a transmission unit that outputs an air vent signal output from the control unit;
Receiving means provided in association with the tire and receiving an air vent signal transmitted from the transmitting means;
The said air vent means is provided in relation to the said tire, The valve which vents the air of a corresponding tire according to the said air vent signal being received by the said receiving means is included in any one of Claims 1-6 . The anti-theft system for cars described in 1. The tire is mounted on a wheel;
The automobile antitheft system according to claim 7 , wherein the valve is provided at a tire mounting portion of the wheel so that air in the tire can be extracted.

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