JP5255379B2 - Anti-theft device - Google Patents

Description

  The present invention relates to an anti-theft device, and more particularly to an anti-theft device capable of executing its own failure diagnosis by an external operation.

  2. Description of the Related Art Conventionally, communication systems are known in which the state of a vehicle detected by various sensors or the like can be grasped at a remote place.

In Patent Document 1, by mounting an in-vehicle telephone on an unmanned work vehicle that is remotely operated, vehicle information based on a sensor signal or the like attached to the work vehicle is obtained from the in-vehicle telephone via a public telephone station. A vehicle monitoring device is disclosed that transmits data to a predetermined mobile phone. According to this monitoring apparatus, it becomes possible to know various states of the vehicle from a remote place by using a mobile phone.
JP 2006-48104 A

  By the way, an anti-theft device that detects vibrations applied to the vehicle body while it is stopped and issues an alarm or makes it impossible to start the engine periodically determines whether or not it functions normally in the event of theft. It is preferable to check. Normally, failure diagnosis of the anti-theft device is performed by connecting to dedicated equipment installed in the vehicle dealership, etc., but such dedicated equipment may be expensive, and the burden on the dealership is heavy. There was a problem of becoming.

  On the other hand, if an anti-theft device is provided with a self-diagnosis function in order to eliminate the need for the dedicated device as described above, some input means for switching from the normal anti-theft detection state to the failure diagnosis state is required. In this case, if the operation method of the input means is known to a third party, the anti-theft effect of the anti-theft device may be reduced.

  In the technology described in Patent Document 1, it is possible to recognize various states of a vehicle using a mobile phone, and operate the antitheft device using the mobile phone or the like to perform a failure diagnosis thereof. This has not been studied.

  An object of the present invention is to solve the above-described problems of the prior art and provide an anti-theft device capable of executing a failure diagnosis of the anti-theft device by making a call from a telephone to an in-vehicle telephone.

  In order to achieve the above object, the present invention provides an anti-theft device for detecting a theft state of a vehicle based on output signals from a plurality of sensors, etc., an in-vehicle phone that can communicate with a public telephone office, and an anti-theft device. Failure diagnosis means for executing failure diagnosis, and a communication control unit for driving the failure diagnosis means based on a predetermined failure diagnosis instruction signal input from an external telephone to the in-vehicle telephone via the public telephone office There is a first feature in that it has.

  A second feature is that the result of the failure diagnosis is displayed on display means provided in the vehicle.

  A third feature is that a means for instructing to display the result of the failure diagnosis on the external telephone is provided.

  The anti-theft device displays a confirmation of reception completion when a call is made from the telephone to the in-vehicle telephone via the public telephone office, and then a failure diagnosis item number is input by the telephone. And confirming and displaying the failure diagnosis item number, starting the failure diagnosis corresponding to the failure diagnosis item number, and further starting the failure diagnosis and confirming that the failure diagnosis is being executed. There is a fourth feature in that.

  The vehicle is provided with a global positioning system (GPS), and the anti-theft device is configured to transmit the position of the vehicle derived by the global positioning system (GPS) to the telephone. This is the fifth feature.

  The antitheft device has a sixth feature in that the antitheft device is configured to control a predetermined engine control device.

  Further, the antitheft device has a seventh feature in that the antitheft device is also configured to execute a failure diagnosis of the predetermined engine control device.

  Moreover, the communication standard of the in-vehicle telephone has an eighth feature in that it is GSM which is a standard of a mobile phone.

  Further, the display means provided in the vehicle has a ninth feature in that the display means is a light emitting diode attached to the anti-theft device.

  Furthermore, the vehicle has a tenth feature in that it is a motorcycle.

  According to the first feature, the in-vehicle telephone that can communicate with the public telephone office, the failure diagnosis means for executing the failure diagnosis of the anti-theft device, and the communication control for driving the failure diagnosis means based on the input signal to the in-vehicle telephone The phone is operated from the telephone through the public telephone office to the in-vehicle telephone and a predetermined operation is performed on the telephone. Thus, failure diagnosis of the vehicle antitheft device can be executed. This eliminates the need for a dedicated device that is directly connected to the anti-theft device in order to perform failure diagnosis, and can spread the use of the anti-theft device. Further, since it is not necessary to provide an input means for executing failure diagnosis in the anti-theft device, the anti-theft effect of the anti-theft device can be enhanced.

  According to the second feature, since the result of the failure diagnosis is displayed on the display means provided in the vehicle, it is possible for a vehicle mechanic or the like to easily recognize the presence or absence of a failure in the anti-theft device. Become.

  According to the third feature, since the result of the failure diagnosis is also displayed on the display means provided on the telephone, it is possible to easily recognize the presence or absence of a failure of the anti-theft device even at a location away from the vehicle. It becomes possible.

  According to the fourth feature, the anti-theft device displays a confirmation of completion of reception when a call is made from the telephone to the in-vehicle telephone via the public telephone office, and then a failure diagnosis item number is input by the telephone. Then, the failure diagnosis item number is confirmed and displayed, the failure diagnosis corresponding to the failure diagnosis item number is started, and further, the failure diagnosis is started and the confirmation display that the failure diagnosis is being performed is performed. It is possible to visually check the operation state of the telephone, the progress of failure diagnosis, and the like. As a result, it is possible to reliably proceed with failure diagnosis.

  According to the fifth feature, the vehicle has a global positioning system (GPS), and the anti-theft device can transmit the position of the vehicle derived by the global positioning system (GPS) to the telephone. Since it is configured, the position of the vehicle is detected and transmitted when the theft occurs, that is, even in the anti-theft device to which the function of tracking the stolen vehicle is added, the failure diagnosis is executed using the telephone. Can do.

  According to the sixth feature, since the antitheft device is configured to control a predetermined engine control device, for example, when a theft state is detected, the engine control device such as a fuel injection device is stopped. Thus, the vehicle can be disabled. Further, the engine control device can be stopped by an operation from the mobile phone.

  According to the seventh feature, the anti-theft device is also configured to execute a failure diagnosis of a predetermined engine control device, so that a failure diagnosis of the engine control device is executed by calling the in-vehicle telephone. Can do. As a result, if the engine control device is configured to stop when a theft condition is detected, it is possible to check whether the stop control of the engine control device is normally executed in the event of theft. Become.

  According to the eighth feature, since the communication standard for in-vehicle telephones is GSM, which is a standard for mobile telephones, an anti-theft device that can be used in many countries operating GSM (Global System for Mobile Communications) can be obtained. .

  According to the ninth feature, since the display means provided in the vehicle is a light emitting diode attached to the anti-theft device, the structure of the display means is simplified, and the anti-theft device is reduced in weight and size. Can do. Moreover, when displaying the diagnosis result by the lighting time of the light emitting diode, the number of blinks, etc., it is possible to make it difficult for a third party who does not know the setting of the display pattern to decipher the meaning of the display content.

  According to the tenth feature, since the vehicle is a motorcycle, the anti-theft is prevented in a motorcycle in which many parts are exposed to the outside, unlike a four-wheeled vehicle that exists in a vehicle in which various operation units are disconnected from the outside. It is possible to increase the anti-theft effect of the device.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a conceptual diagram showing a communication system of an antitheft device according to an embodiment of the present invention. The motorcycle 1 is provided with an anti-theft device 10 that detects a theft state of the vehicle and issues a warning. The anti-theft device 10 determines that a theft operation by a third party is being performed when a signal exceeding a predetermined value is output from an acceleration sensor or the like attached to the vehicle body while the vehicle is stopped. A horn, a light fixture, etc. are actuated to warn.

  The anti-theft device 10 includes an in-vehicle telephone (see FIG. 2) that can communicate with the public telephone office 2. As a result, it is possible to call the anti-theft device 10 from the telephone 3 via the public telephone office 2. The telephone 3 may be a mobile phone or a fixed telephone as long as it can access the public telephone station 2. In the present embodiment, GSM (Global System for Mobile Communications), which is a mobile phone standard, is applied to the communication standard of the in-vehicle telephone of the anti-theft device 10, and it is possible to make a call from the telephone 3 to the anti-theft device 10. This is possible in many countries that operate GSM.

  FIG. 2 is a block diagram showing a configuration of the anti-theft device 10 and its peripheral devices according to the present embodiment. The anti-theft device 10 is, for example, a control device that is covered with a resin case of about 20 × 20 × 10 mm and does not have an operation means such as a switch. For example, a lower part of a motorcycle seat, a lower part of a fuel tank, etc. It is placed in a position where it is difficult for third parties to access. The anti-theft device 10 includes an in-vehicle telephone 11 having a transmission / reception antenna 16 for communicating with the public telephone office 2, a communication control unit 12 that performs analysis of transmission / reception signals by the in-vehicle telephone 11, and malfunction prevention of the anti-theft device 10. Failure diagnosis means 14 for diagnosing presence / absence, display means 13 for displaying diagnosis results and the like by failure diagnosis means 14, and theft condition determination means 15 for determining the theft condition of the vehicle based on output signals from various sensors and the like. Including. The in-vehicle telephone 11 may be provided outside the antitheft device 10. Further, the communication control unit 12 can be set so as to deny access from other than a predetermined telephone registered in advance.

  The theft state determination means 15 includes an acceleration sensor 30 that detects vibrations applied to the vehicle body, a tilt sensor 31 that detects front, rear, left and right tilt angles of the vehicle body, and battery voltage for monitoring access to the power supply circuit. An output signal from the voltage sensor 32 that detects a change is input. The theft state determination means 15 determines that the vehicle is in a theft state when at least one output signal of various sensors exceeds a predetermined value. The anti-theft device 10 is configured to be able to transmit to the telephone 3 such as a user via the in-vehicle telephone 11 that the theft state has been detected. At this time, the time when the theft state was detected, the type of the activated sensor, and the like can be displayed on the display as the display means of the telephone 3.

  In addition, a GPS (Global Positioning System) 20 is connected to the theft state determination means 15. The GPS 20 is used for the operation of the in-vehicle navigation system during normal driving of the vehicle. However, in the anti-theft device 10 according to the present embodiment, when the theft occurs, the current position of the vehicle or the movement from the theft occurs. It is configured to be used for a vehicle tracking function for transmitting a history or the like to the telephone 3 or the like via the in-vehicle telephone 11.

  Further, an EFI (Electronically Controlled Fuel Injection) EFI 21 as an engine control device connected to the theft state determination means 15 is configured to be able to stop driving in response to a command from the theft state determination means 15. As a result, in the unlikely event of theft, the EFI 21 can be automatically stopped to make the vehicle unable to travel. The stop of the EFI 21 can be arbitrarily executed by operating the telephone 3. The engine control device controlled by a command from the theft state determination means 15 can be an ignition device for a spark plug, various actuators, or the like.

  The anti-theft device 10 according to the present embodiment diagnoses whether or not the anti-theft device 10 is functioning normally by the failure diagnosing means 14, that is, executes a self-failure diagnosis (diagnosis) of the anti-theft device 10. Is possible. The failure diagnosis unit 14 can detect, for example, a state in which even if various sensors output signals exceeding a predetermined value due to a malfunction of the theft state determination unit 15, it cannot be determined as a theft state. Further, the failure diagnosing means 14 can diagnose a state in which output signals from various sensors are not normally input, failure of various sensors themselves, and the like. When such a failure is detected, the failure diagnosing unit 14 is set to display the type of failure, a countermeasure, and the like on the display unit 13.

  With the configuration described above, a vehicle mechanic or the like can perform a failure diagnosis of the anti-theft device 10 by calling the anti-theft device 10 from the telephone 3, and can know the diagnosis result by the display means 13. it can. Note that a light emitting diode (LED), a liquid crystal screen, or the like can be applied to the display means 13.

  FIG. 3 is a time chart showing the flow when executing the self-failure diagnosis process of the anti-theft device 10 using the telephone 3. In step S10, when a vehicle mechanic or the like calls the anti-theft device 10 from the telephone 3, the in-vehicle telephone 11 of the anti-theft device 10 receives this in step S11. In the subsequent step S12, reception completion is displayed on the display means 13. Thereby, the maintenance person etc. can confirm visually that the telephone line was connected. The procedure for making a call in step S10 can be executed by dialing a telephone number unique to the vehicle-mounted telephone 11 from a fixed telephone, a mobile phone or the like.

  Next, in step S20, a diagnostic item number (for example, 1 to 5) is input to the telephone 3. This diagnostic item is, for example, 1. 1. Check that the anti-theft device 10 has no short circuit. It can be configured with contents such as whether or not various sensors are functioning normally. In the subsequent step S21, the input diagnostic item is received by the in-vehicle telephone 11, and in step S22, the input diagnostic item is displayed on the display means 13. In step S40, the display means 13 displays that a failure diagnosis is to be performed. In step S41, a failure diagnosis instruction signal for starting a failure diagnosis is output from the communication control unit 12, and the selected diagnosis item is displayed. The failure diagnosis unit 14 executes the failure diagnosis.

  As described above, according to the antitheft device 10 according to the present embodiment, it is possible to execute a failure diagnosis of the antitheft device 10 by operating the telephone 3. Usually, when the anti-theft device 10 is provided with a self-diagnosis function so that a dedicated device for performing a failure diagnosis is not required, the failure diagnosis mode in which the function of the anti-theft device is suspended from the normal anti-theft detection mode state. However, according to the anti-theft device 10 according to the present embodiment, there is no need to provide an input means that can be operated by a third party. It is possible to perform failure diagnosis of the anti-theft device and maintain a high anti-theft effect of the anti-theft device.

  FIG. 4 is a circuit diagram of an antitheft device and its peripheral devices according to a modification of the present embodiment. The same reference numerals as those described above denote the same or equivalent parts. In this circuit diagram, in particular, the connection relationship between the anti-theft device 10 and warning means (horn and turn signal to be described later) is shown. The CPU 50 as the central processing unit of the antitheft device 10 includes an antitheft determination means and a failure diagnosis means as shown in FIG. In this modification, an LED diode connected to the CPU 50 is applied as the display means 13.

  The anti-theft device 10 is provided with a plurality of input / output ports. The power of the in-vehicle battery 63 is input from the input port 80, and the main power supply of the vehicle is connected / disconnected using the input ports 81 and 82. The operation state of the ignition switch 60 and the brake lamp switch 61 that turns on the brake lamp 43 is monitored.

  The motorcycle 1 is provided with a horn 41 that operates in accordance with the operation of the horn switch 62 and a blinker light 42 that blinks in accordance with the operation of the turn signal switch (not shown). The horn 41 and the blinker lamp 42 normally do not operate even if each switch is operated unless the ignition switch 60 is in the ON state. However, when the theft state is detected while the vehicle is stopped, the CPU 50 switches on the transistors 53 and 54 and drives the relays 70, 71 and 72 via the output ports 83 and 84, thereby The blinker lamp 42 is operated as a warning means.

  Further, when the theft state of the vehicle is detected, the CPU 50 can drive the transistor 51 connected to the input / output port 85 to stop the EFI 21. Furthermore, it is possible to transmit the vehicle theft state to a predetermined telephone using the in-vehicle telephone 11 connected to the input / output port 86.

  The anti-theft device 10 according to this modification is configured to use the check coupler 90 connected via the input port 87 when making a fault diagnosis by calling the telephone 3 from the telephone 3 to the vehicle-mounted telephone 11. Yes. The check coupler 90 is, for example, a small device composed of a male coupler having a switch. By connecting the male coupler to a female coupler connected to the input port 87, an input signal of the switch can be input to the CPU 50. It can be comprised so that it may become. Here, with reference to FIG. 5, the flow in the case of performing failure diagnosis using the check coupler 90 will be described.

  FIG. 5 is a time chart showing the flow of failure diagnosis when the check coupler 90 is used. The same reference numerals as those described above denote the same or equivalent parts. The present modification is characterized in that an authentication process for preventing access by a third party is performed by collating the password code input from the telephone 3 with the password code input from the check coupler 90. In this time chart, a series of authentication processes is set between step 22 (diagnosis item display) and step S40 (diagnosis execution display) shown in FIG.

  In step S30, the personal identification code is input to the telephone 3, and in step S31, the input personal identification code is received by the in-vehicle telephone 11. In the subsequent step S32, a password code is input by an on / off operation of the check coupler 90. In step S33, the security code is authenticated by the antitheft device 10. This authentication process can be executed by the communication control unit 12 (see FIG. 2) of the anti-theft device 10.

  When the authentication process in step S33 is normally completed, in step S40, the display means 13 displays that the fault diagnosis is to be performed, and the fault diagnosis of the diagnostic item selected in step S41 is executed. It becomes. That is, in this modification, when the security code input from the telephone 3 is different from the security code input from the check coupler 90, a failure diagnosis by the anti-theft device is not performed, and a failure is caused by a third party. It prevents the diagnosis from being performed. Note that the type of password code, the form of the check coupler, and the like can be variously modified. For example, the password code can be input by an operation of switching the connection state of the check coupler having no switch or the like.

  Returning to FIG. 4, the output ports 88 and 89 provided in the antitheft device 10 are provided for connection with various in-vehicle devices. The serial line 55 and K line (K-line) 56 connected to the CPU 50 can be arbitrarily switched to the output port 89 by a jumper select 57. The serial line 55 and the K line 56 are communication standards used for failure diagnosis of various in-vehicle devices. After connecting the in-vehicle device to the output port 89, the telephone 3 calls the anti-theft device 10 to diagnose the failure. Can be executed. The above-described EFI 21 can also be connected to the CPU 50 using this K line 56 and execute its failure diagnosis. Further, the type and number of input / output ports provided in the anti-theft device 10 are not limited to the above-described embodiment, and various modifications can be made.

  As described above, according to the anti-theft device according to the present invention, based on the in-vehicle phone that can communicate with the public telephone office, the failure diagnosis means for executing the failure diagnosis of the anti-theft device, and the input signal to the in-vehicle phone. And a communication control unit that drives the failure diagnosis means, and is configured such that a failure diagnosis is executed by calling a vehicle-mounted telephone from a telephone through a public telephone office and applying a predetermined operation to the telephone. Therefore, the failure diagnosis of the vehicle antitheft device can be executed by operating the telephone. This eliminates the need for a dedicated device that is directly connected to the anti-theft device in order to perform failure diagnosis, and can spread the use of the anti-theft device. Further, since it is not necessary to provide an input means for executing failure diagnosis in the anti-theft device, the anti-theft effect of the anti-theft device can be enhanced.

  The configuration and arrangement of the anti-theft device, the types of various sensors and warning means for detecting the theft state, the configuration of the display means, the function of the communication control unit, the contents of the fault diagnosis performed by the anti-theft device, and the communication standard of the in-vehicle phone The type of GPS, the method of using GPS, and the like are not limited to the above embodiment, and various changes can be made. For example, the theft state determination means determines that the vehicle is in a theft state based on a change in the current position detected by the GPS even when a signal exceeding a predetermined value is not output from various sensors such as an acceleration sensor. You can also. The anti-theft device according to the present invention is not limited to motorcycles, and can be applied to tricycles, four-wheel vehicles, and the like.

It is a conceptual diagram which shows the communication system of the antitheft device which concerns on one Embodiment of this invention. It is a block diagram which shows the structure of the antitheft device which concerns on this embodiment, and its peripheral device. It is a time chart which shows the flow at the time of performing failure diagnosis of an antitheft device using a telephone. It is a circuit diagram of an antitheft device and its peripheral devices according to a modification of the present embodiment. It is a time chart which shows the flow of a failure diagnosis at the time of using a check coupler.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Motorcycle (vehicle), 2 ... Public telephone station, 3 ... Telephone, 10 ... Antitheft device, 11 ... In-vehicle telephone, 12 ... Communication control part, 13 ... Display means, 14 ... Fault diagnosis means, 15 ... Theft state Determining means, 16 ... transmitting / receiving antenna, 20 ... GPS (global positioning system), 21 ... EFI (electronically controlled fuel injection device), 30 ... acceleration sensor, 31 ... tilt sensor, 32 ... voltage sensor, 40 ... warning means

Claims (8)

In an in-vehicle antitheft device that detects the theft state of a motorcycle based on output signals from a plurality of sensors,
An in-vehicle phone that can communicate with a public telephone office;
Failure diagnosis means for performing failure diagnosis of the anti-theft device;
A communication control unit that drives the failure diagnosis means based on a predetermined failure diagnosis instruction signal input from an external telephone to the vehicle-mounted phone via the public telephone office;
The result of the failure diagnosis is configured to be displayed on a display means provided in the motorcycle ,
The anti-theft device, wherein the failure diagnosis instruction signal is transmitted based on a manual input operation by an operator of the external telephone .   The antitheft device according to claim 1, further comprising means for instructing to display the result of the failure diagnosis on the external telephone. The display means includes
Means for displaying a reception completion when receiving a telephone call from the telephone to the in-vehicle telephone through the public telephone office;
Means for displaying the failure diagnosis item number when the failure diagnosis item number is input by the telephone;
The anti-theft device according to claim 1 or 2, further comprising means for performing display of failure diagnosis during execution of failure diagnosis corresponding to the failure diagnosis item number. The motorcycle is equipped with a global positioning system (GPS),
The anti-theft device is configured to transmit the position of the motorcycle derived by the global positioning system (GPS) to the telephone. The anti-theft device described.   5. The anti-theft device according to claim 1, wherein the anti-theft device is configured to control a predetermined engine control device.   6. The anti-theft device according to claim 5, wherein the anti-theft device is configured to execute a failure diagnosis of the predetermined engine control device.   The anti-theft device according to any one of claims 1 to 6, wherein a communication standard of the in-vehicle telephone is GSM (registered trademark) which is a standard of a mobile phone.   8. The anti-theft device according to claim 1, wherein the display means provided in the motorcycle is a light emitting diode attached to the anti-theft device.

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