JP2005329746A - Vehicular antitheft device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular antitheft device capable of demonstrating the vehicle theft suppression effect by permitting the detection of a first illegal action after a second illegal action is performed in a situation where detection of the first illegal action is limited. <P>SOLUTION: In the warning mode, when a suspicious object present in a cabin is detected by using an ingress sensor, and when a vehicle theft action other than presence of the suspicious object is detected by using other sensor or switch, an alarm warning is given by a warning device, and the image of the vehicle theft action is picked up by a camera. Detection of presence/absence of any suspicious object by the ingress sensor is switched between the permissible condition and the limited condition by the operation of an ingress sensor detection changing switch. In a situation in which detection of presence/absence of the suspicious object by the ingress sensor is limited, when any vehicle theft action other than presence of any suspicious object is detected, detection of presence/absence of any suspicious object by the ingress sensor is changed from the limited condition to the permissible condition. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle antitheft device, and in particular, is permitted to detect the presence of a suspicious object in a vehicle interior using, for example, an intrusion sensor, which is performed to prevent vehicle theft, with the intention of a legitimate vehicle user. The present invention relates to a vehicle antitheft device that can be switched between a restricted state and a restricted state.

Conventionally, when all vehicle doors are closed and locked in a situation where the vehicle is in an ignition-off state, the vehicle is set in a state (warning mode) in which an alarm alarm is issued for fraud An antitheft device is known (for example, see Patent Document 1). In this device, once the vehicle is set to the alert mode, in principle, if an illegal act such as opening the door of the vehicle, the presence of an object in the passenger compartment, or unauthorized shaking of the vehicle body is detected, An alarm warning is issued so that it is difficult to continue the action. In addition, when a predetermined switch is operated, an alarm warning in the warning mode is issued for a part of all frauds, while a specific fraud (specifically, Therefore, it cannot be issued for the presence of an object in the vehicle interior using an intrusion sensor or the unauthorized movement of the vehicle body using a tilt sensor. For this reason, according to such a vehicle antitheft device, when a vehicle occupant leaves another occupant, an animal, or the like in the passenger compartment when the vehicle is parked, it is left in the passenger compartment by operating a predetermined switch. It is possible to surely prevent an illegal action against a vehicle due to the presence of other occupants and animals from being erroneously detected and generating a false alarm.
JP 2000-31257 A

  By the way, an alarm alarm for an illegal act on a vehicle is normally performed only for a predetermined time. For this reason, the detection of some of the frauds described above is permitted and alarm warnings based on the fraudulent acts are permitted, while the detection of specific frauds is restricted and alarm warnings based on the fraudulent acts are restricted. In some circumstances, if some fraud is detected and an alarm alarm is started once and then ended, detection of a specific fraud is restricted and the alarm alarm remains restricted. Thus, even if a specific fraud is performed, the specific fraud is not detected, and no alarm warning is given, so that the vehicle theft cannot be prevented.

  The present invention has been made in view of the above points, and permits the detection of a specific fraud after another fraud is performed in a situation where the detection of the specific fraud is restricted. Therefore, an object of the present invention is to provide a vehicle antitheft device capable of exerting a vehicle theft deterrent effect for the specific fraud.

  According to the first aspect of the present invention, the first fraud detection means for detecting the first fraud against the vehicle and the second fraud against the vehicle different from the first fraud are detected. When the second cheating detection means detects the first cheating act by the first cheating detection means, and the second cheating action is detected by the second cheating detection means Vehicle theft suppression means for performing an operation for suppressing vehicle theft, and detection permission / denial control means for permitting / limiting the detection of the first fraud by the first fraud detection means In the situation where the detection permission control means restricts detection of the first fraud by the first fraud detection means, the second fraud detection means performs the second fraud detection means. Of cheating When issued is achieved by a vehicle theft prevention device for switching the detection of the Fraud detection means of the first first abuse from the restricted state to the enabled state.

  In the present invention, in the situation where the detection of the first fraud is restricted, when the second fraud is detected, the detection is switched from the state where the detection of the first fraud is restricted to the permitted state. . If detection of the first fraud is restricted, the act is not detected even if the first fraud is performed. On the other hand, if detection of the first fraud is permitted, the first fraud When an illegal act is performed, the act is detected, and an operation for suppressing vehicle theft is executed. Therefore, according to the present invention, since the detection of the first fraud is permitted after the second fraud is performed in the situation where the detection of the first fraud is limited, The vehicle anti-theft effect against fraud can be exhibited.

  In this case, as described in claim 2, in the vehicle antitheft device according to claim 1, the detection permission / inhibition control means is configured to perform the first fraud detection means by the first fraud detection means in accordance with an operation by an authorized vehicle user. In a situation in which detection of the first fraud by the first fraud detection means is restricted by the manual control means, the manual control means for switching the detection of one fraudulent action between a permitted state and a restricted state, Automatic control means for switching the detection of the first fraud by the first fraud detection means from the restricted state to the permitted state when the second fraud detection is detected by the second fraud detection means If the detection of the first fraud is restricted by the intention of a legitimate vehicle user, the first fraud is automatically performed after the second fraud is performed. Fraud Since the detection of the order is granted, it is possible to exhibit the vehicle theft prevention effect with respect to the first of cheating.

  According to a third aspect of the present invention, in the vehicle antitheft device according to the first or second aspect, the vehicle antitheft means includes the first fraud detection means by the first fraud detection means by the detection permission control means. When detection of fraud is permitted and the first fraud detection is detected by the first fraud detection means, photographing of the first fraud using the photographing means as an operation for suppressing vehicle theft If the photographing control means for performing the first fraud is detected, the detection of the first fraud is permitted after the second fraud is performed in a situation where the detection of the first fraud is restricted. By taking a picture using the photographing means for the first fraud, the vehicle theft prevention effect for the first fraud can be sufficiently exhibited.

  According to a fourth aspect of the present invention, in the vehicle antitheft device according to any one of the first to third aspects, the first fraud detection means detects the presence of a suspicious object in the passenger compartment. And it is sufficient.

  According to the first to fourth aspects of the invention, after the second fraud is performed in a situation where the detection of the first fraud is restricted, the detection of the first fraud is permitted. The vehicle theft deterrent effect for the first fraud can be exhibited.

  FIG. 1 is a system configuration diagram of a vehicle antitheft device 10 according to an embodiment of the present invention. The vehicle antitheft device 10 of the present embodiment is a device provided to prevent vehicle theft such as the vehicle itself, vehicle parts such as tires and engines, and those placed in the vehicle, and is shown in FIG. As described above, an alarm control electronic control unit (hereinafter referred to as an alarm control ECU) 12 is provided.

  The alarm control ECU 12 determines whether or not all vehicle doors are closed and locked in a state where the vehicle key carried by the vehicle occupant is not inserted into the ignition key cylinder of the vehicle. As a result of the determination, if it is determined that all vehicle doors are closed and locked when the vehicle key is not inserted, the vehicle is removed from a mode for canceling monitoring / warning of the vehicle theft (hereinafter referred to as no-warning mode). Transition to a mode for monitoring / warning the theft (hereinafter referred to as “warning mode”). Further, when any vehicle door is properly unlocked or the engine is normally started in the alert mode, the alert mode is shifted to the no alert mode.

  The alarm control ECU 12 is connected with an intrusion sensor 14, a glass break sensor 16, a tilt sensor 18, a courtesy switch 20, and a hood switch 22 as sensors for detecting an action when the vehicle is stolen. The intrusion sensor 14 is a sensor that detects the movement of a person or an object existing in the vehicle interior using, for example, ultrasonic waves or infrared rays, and outputs a signal corresponding to the presence or absence of a suspicious object. The glass break sensor 16 is a sensor that detects sound and vibration when a windshield, a rear glass, and a window glass provided on a vehicle door are broken, and outputs a signal according to whether or not the window glass is broken. The tilt sensor 18 outputs a signal corresponding to the tilt angles (that is, the roll angle and the pitch angle) about the front-rear direction axis and the left-right direction axis from the horizontal of the vehicle. The courtesy switch 20 outputs a signal corresponding to the opening / closing of the vehicle door such as the front, rear and luggage. The hood switch 22 outputs a signal corresponding to the opening / closing of the front hood of the vehicle.

  The alarm control ECU 12 detects the presence or absence of a suspicious object in the vehicle interior based on the output signal from the intrusion sensor 14, detects the presence or absence of a window glass crack based on the output signal from the glass break sensor 16, and outputs the tilt sensor 18. An inclination angle from the horizontal of the vehicle is detected based on the signal, an open / close state of the vehicle door is detected based on the output signal of the courtesy switch 20, and an open / close state of the vehicle hood is detected based on the output signal of the hood switch 22. . Based on the detection result, whether or not a vehicle intruder exists, whether or not a window glass is broken, whether or not the vehicle is unintentionally moved or jacked up. And whether or not the vehicle door or the vehicle hood is pry open, and it is determined whether or not the vehicle is stolen.

  Also connected to the alarm control ECU 12 is an alarm device 24 composed of various lamps such as a horn, a siren, a buzzer, and a hazard lamp mounted on the vehicle. When the alarm control ECU 12 detects a vehicle theft using the above-described sensors and switches 14 to 22 in the alert mode, the alarm control ECU 12 supplies an operation signal for notifying the vehicle periphery of the vehicle theft to the alarm device 24. In accordance with the operation signal supplied from the alarm control ECU 12, the alarm device 24 is a variety of devices such as a siren, a horn, a buzzer, a hazard lamp, etc. in order to notify the vehicle surroundings that the vehicle theft is being performed visually or by hearing. Turn on the lamp and give a warning by voice guidance. Note that the alarm device 24 connected to the alarm control ECU 12 may be a part of these sirens, horns, etc., or may be used alone or in any combination.

  A camera 26 is also connected to the alarm control ECU 12. The camera 26 is disposed in the vehicle interior and captures the situation relating to vehicle theft, such as the face of a person sitting in the driver's seat or the passenger seat, or a person entering the vehicle interior from outside the vehicle interior. Note that only one camera 26 may be provided, or a plurality of cameras 26 may be provided so that different locations can be photographed. When the alarm control ECU 12 detects the vehicle theft using the above-described sensors and switches 14 to 22 in the alert mode, the alarm control ECU 12 supplies an operation signal to the camera 26 for photographing the situation related to the vehicle theft. The camera 26 performs video shooting in accordance with a command supplied from the alarm control ECU 12. Image data captured by the camera 26 is recorded on a recording medium (memory) mounted on the vehicle. The image data may be transmitted from the vehicle to the information processing center or infrastructure via communication means and further provided to the vehicle owner.

  An intrusion sensor detection changeover switch 28 is further connected to the alarm control ECU 12. The intrusion sensor detection changeover switch 28 is disposed, for example, on an instrument panel or the like in the passenger compartment so that it can be operated by a vehicle occupant. The intrusion sensor detection changeover switch 28 is a switch for switching between a state in which the above-described intrusion sensor 14 is allowed to detect the presence / absence of a suspicious object and a state in which it is restricted (prohibited). Based on the state of the intrusion sensor detection changeover switch 28, the alarm control ECU 12 switches the presence / absence detection of the suspicious object in the vehicle compartment by the intrusion sensor 14 in the alert mode between the permitted state and the restricted state.

  Next, operation | movement of the antitheft device 10 for vehicles of a present Example is demonstrated.

  In this embodiment, the vehicle antitheft device 10 has a vehicle key inserted into an ignition key cylinder, any vehicle door is open, or any vehicle door is unlocked. Is in a no-warning mode for canceling monitoring / warning of vehicle theft by the alarm control ECU 12. When the vehicle key inserted into the ignition key cylinder is removed from this state and all the vehicle doors are closed and locked, the alarm control ECU 12 shifts to a warning mode for monitoring and warning the vehicle theft.

  The alarm control ECU 12 uses the intrusion sensor 14, the inclination sensor 18, the courtesy switch 20, and the hood switch 22 to detect the presence / absence of various vehicle theft actions. The alarm control ECU 12 does not execute driving by the alarm device 24 for an alarm or the like and does not perform photographing by the camera 26 when such a vehicle theft act is not detected in the alert mode.

  On the other hand, when the vehicle theft action is detected in the warning mode, the alarm control ECU 12 issues an operation command to the alarm device 24 to notify the vehicle surroundings of the vehicle theft, and thereby the horn toward the outside of the vehicle. Shooting by the camera 26 by giving a shooting command to the camera 26 in order to take a picture of the vehicle theft. Is executed for a predetermined time (for example, 10 seconds or 30 seconds). In this case, in the configuration in which a plurality of cameras 26 are provided, it is sufficient to set at least the camera 26 capable of photographing the detected vehicle theft action to the photographing mode. In this case, driving of the alarm device 24 is executed, and photographing by the camera 26 is executed.

  As described above, in the system of the present embodiment, when a vehicle theft action is performed in the alert mode, the vehicle theft action is detected in principle, and an alarm alarm regarding the vehicle theft action is issued from the alarm device 24. In this case, people around the vehicle can know that the vehicle theft is being performed. Therefore, according to the vehicle antitheft device 10 of the present embodiment, it is possible to suppress the vehicle theft by the alarm alarm by the alarm device 24 in the alert mode.

  Further, when a vehicle theft act is performed in the alert mode, the camera 26 takes a picture to photograph a situation related to the vehicle theft action. In this case, evidence of vehicle theft and techniques remain on the recording medium as image data until after the fact. Therefore, according to the vehicle antitheft device 10 of the present embodiment, it is possible to obtain a vehicle theft deterrent effect by photographing the vehicle theft by the camera 26 in the alert mode.

  The alarm control ECU 12 may be connected to a communication device that can communicate with a predetermined center together with or in place of the alarm device 24. In this case, the alarm control ECU 12 supplies an operation signal to the communication device so as to notify the predetermined information center with the ID information of the own vehicle or the vehicle user that the vehicle theft has been performed. To do. The communication device wirelessly connects to the information center via a communication network using radio waves having a predetermined frequency in accordance with an operation signal supplied from the alarm control ECU 12, and the vehicle or the vehicle user uses the center to communicate with the center. Along with the ID information, a wireless notification is made that the vehicle theft has been performed. When the information center receives a report on the vehicle theft from the in-vehicle device, the information center identifies an authorized vehicle user corresponding to the vehicle registered in advance based on the ID information included in the reported information, To the mobile terminal carried by the vehicle user that the vehicle theft has been performed by telephone call or email. When the mobile terminal receives a report on the vehicle theft from the center, the mobile terminal displays a message to that effect or outputs a sound from the speaker.

  In such a system, when a vehicle theft is performed in the warning mode, a report regarding the vehicle theft is sent from the in-vehicle device to the mobile terminal of the authorized vehicle user via the center. Can know that his vehicle has been stolen even when he is away from his vehicle. Therefore, according to such a system, a legitimate vehicle user can easily take countermeasures against the vehicle theft, and the vehicle theft prevention function can be improved.

  Further, in the system of the present embodiment, as described above, the alarm control ECU 12 sets the permission state to detect whether there is a suspicious object in the vehicle interior by the intrusion sensor 14 in the alert mode based on the state of the intrusion sensor detection changeover switch 28. Switch between restricted states. If the intrusion sensor 14 is permitted to detect the presence of a suspicious object, the intrusion action, specifically, the suspicious object existing in the vehicle interior is detected by the intrusion sensor 14 when an intruder enters the vehicle interior. Thus, an alarm alarm by the alarm device 24 as described above and photographing by the camera 26 are performed. On the other hand, if the presence / absence detection of the suspicious object by the intrusion sensor 14 is restricted, the action is not detected by the intrusion sensor 14 even if there is a moving object in the passenger compartment. No photo is taken.

  For this reason, in the vehicle antitheft device 10 of the present embodiment, when the vehicle occupant leaves the vehicle while leaving other occupants, animals, etc. when the vehicle is parked, the intrusion sensor detection changeover switch 28 is operated to operate the intrusion sensor 14. The detection of the suspicious object is erroneously detected by the intrusion sensor 14 due to the presence of other occupants or animals remaining in the passenger compartment even when the vehicle enters the warning mode. In this case, it is reliably prevented that the alarm by the alarm device 24 is mistakenly performed, and the camera 26 does not shoot the suspicious object, so that the image data of the camera 26 is stored. It is prevented that useless image data is stored in the medium (memory).

  By the way, an alarm warning and camera photography for a fraudulent act on the vehicle is performed only for a predetermined time after the fraudulent act is detected by the sensor or the switches 14-22. For this reason, after the vehicle occupant operates the intrusion sensor detection changeover switch 28 and restricts the detection of the presence or absence of suspicious objects in the vehicle interior by the intrusion sensor 14 in the alert mode, a third party who is not actually a regular vehicle occupant. When a car door is opened or a window glass is broken to break into the vehicle interior, an alarm warning or camera shot is taken for the car door opening action or glass breaking action. Alarm alerts and camera photography may not be performed for the presence of. However, this causes inconvenience that the vehicle theft due to the intrusion in the vehicle in the alert mode cannot be suppressed.

  In this respect, in order to sufficiently exert the vehicle theft deterrent effect in the warning mode, even when the detection of the presence / absence of the suspicious object by the intrusion sensor 14 is restricted, other vehicle theft actions (for example, the car door opening action) Or the glass breaking action), the intrusion sensor 14 automatically detects the presence / absence of the suspicious object without being operated by the vehicle occupant so that the intrusion sensor 14 can detect the suspicious object. It is appropriate to release automatically and switch to the permitted state. Therefore, the vehicle antitheft device 10 of the present embodiment is characterized in that this function is realized. Hereinafter, with reference to FIG. 2, the characteristic part of a present Example is demonstrated.

  When a third party who is not a regular vehicle occupant illegally enters the vehicle interior without possessing a regular vehicle key, first of all, an act such as illegally opening the vehicle door or breaking the window glass is performed. In the system of this embodiment, when a vehicle theft action such as a car door being opened and a window glass being broken is performed, the glass break sensor 16 or the courtesy switch 20 reacts to detect the unauthorized vehicle theft action. Then, the alarm warning by the warning device 24 is executed. Therefore, in the situation where the detection of the presence or absence of the suspicious object by the intrusion sensor 14 is restricted, when the alarm device 24 issues an alarm alarm, that is, the vehicle theft is detected by using a sensor other than the intrusion sensor 14 or the switches 16-22. If the intrusion sensor 14 is automatically released from the restricted state of detection of the presence / absence of the suspicious object and switched to the permitted state, the intrusion sensor 14 is moved when there is a suspicious person in the passenger compartment thereafter. Since the intruding action is detected by using the alarm device 24, it is possible to take an alarm alarm by the alarm device 24 and a vehicle theft action by the camera 24.

  FIG. 2 shows a flowchart of an example of a control routine executed by the alarm control ECU 12 in the vehicle antitheft device 10 of this embodiment in order to realize the above function. The routine shown in FIG. 2 is a routine that is repeatedly activated every predetermined time. When the routine shown in FIG. 2 is started, first, the process of step 100 is executed.

  In step 100, based on the state of the intrusion sensor detection changeover switch 28, whether or not the intrusion sensor 14 in the warning mode is in a restricted state for detecting whether there is a suspicious object in the vehicle interior, that is, a person or object moving in the vehicle interior. It is determined whether or not the intrusion sensor 14 does not react even if there is an alarm, or the intrusion sensor 14 reacts but the alarm control ECU 12 does not recognize that there is a suspicious object. As a result, when the presence / absence detection of the suspicious object by the intrusion sensor 14 is in the permitted state, the intrusion sensor 14 can react to the suspicious object in the vehicle interior in that state. If so, the current routine is terminated. On the other hand, when the presence / absence detection of the suspicious object by the intrusion sensor 14 is in the restricted state, the intrusion sensor 14 does not function effectively in that state. If such a determination is made, the process of step 102 is executed next. .

  In step 102, it is determined whether or not an alarm warning is issued by the warning device 24, that is, whether or not a vehicle theft action is detected using a sensor other than the intrusion sensor 14 or the switches 16-22. As a result, if an alarm alarm resulting from the detection of the vehicle theft using the sensors and switches 16 to 22 is not performed, whether or not there is a suspicious object in the vehicle compartment by the intrusion sensor 14 by operating the intrusion sensor detection switch 28 Since it can be determined that an illegal act is not performed on the vehicle after the detection is switched from the permitted state to the restricted state, the routine of this time is terminated when such a determination is made. On the other hand, when an alarm alarm resulting from detection of vehicle theft using the sensors and switches 16 to 22 is performed, the intrusion sensor 14 detects whether there is a suspicious object in the vehicle interior by operating the intrusion sensor detection changeover switch 28. Since it can be determined that an illegal act has been performed on the vehicle after switching from the permitted state to the restricted state, if such determination is made, the process of step 104 is executed next.

  In step 104, a process of switching the presence / absence detection of the suspicious object in the vehicle interior by the intrusion sensor 14 in the warning mode from the restricted state to the permitted state is executed. After the processing of step 104 is executed, the detection permission state by the intrusion sensor 14 continues thereafter, and the intrusion sensor 14 functions effectively when there is a suspicious person in the passenger compartment, and the unauthorized intrusion occurs. The action is detected by the alarm control ECU 12. When the process of step 104 is completed, the current routine is terminated.

  According to the routine shown in FIG. 2, in the situation where the presence / absence detection of the suspicious object in the vehicle interior by the intrusion sensor 14 in the alert mode is restricted according to the operation of the intrusion sensor detection changeover switch 28, When a vehicle theft is detected using the switches 16 to 22, the presence / absence detection of the suspicious object in the vehicle interior by the intrusion sensor 14 can be switched from the restricted state to the permitted state, and thereafter the permitted state is continued. be able to.

  If the detection of the presence or absence of a suspicious object by the intrusion sensor 14 in the alert mode is restricted, an alarm warning by the alarm device 24 and shooting by the camera 26 are not performed for the presence of the suspicious object, but the suspicious object by the intrusion sensor 14 is not detected. If the presence / absence detection is permitted, an alarm warning by the warning device 24 and photographing by the camera 26 may be performed for the presence of a suspicious object. For this reason, according to the present embodiment, even when the detection of the presence or absence of the suspicious object in the vehicle interior by the intrusion sensor 14 is once limited by the operation of the intrusion sensor detection changeover switch 28, the sensor or switch 16 other than the intrusion sensor 14 Since the detection by the intrusion sensor 14 is automatically permitted without being operated by the vehicle occupant after the vehicle theft act is detected using -22, when there is a suspicious object in the vehicle interior in that state In this case, an alarm warning by the warning device 24 and shooting of a suspicious object by the camera 26 are performed.

  In such a configuration, after the vehicle occupant operates the intrusion sensor detection changeover switch 28 and restricts the presence / absence detection of the suspicious object in the vehicle interior by the intrusion sensor 14 in the warning mode, the third vehicle is not actually a regular vehicle occupant. When a person pricks the vehicle door or breaks the window glass and breaks into the passenger compartment, an alarm warning or camera shooting is performed for the car door opening or glass breaking action, and the alarm warning and camera shooting are finished. After that, an alarm warning and camera photography are performed independently for the presence of a suspicious object in the passenger compartment. In this case, the person around the vehicle can know that the vehicle door has been opened and the glass has been broken, and that it can be known that there are unauthorized intruders in the passenger compartment. Actions such as opening the door and breaking the glass can be left as image data on the vehicle recording medium, and the suspicious object existing in the passenger compartment can be left as image data on the vehicle recording medium.

  Therefore, according to the vehicle antitheft device 10 of the present embodiment, sensors other than the intrusion sensor 14 and switches 16 to 16 in a situation where the presence / absence detection of the suspicious object in the vehicle interior by the intrusion sensor 14 in the alert mode is restricted. After the vehicle theft action such as opening the door of the vehicle or breaking the glass is detected using the automatic intrusion sensor 14, the detection by the intrusion sensor 14 is automatically permitted. Even after detection is restricted, it is possible to exert a vehicle theft deterrent effect on a suspicious object present in the passenger compartment.

  By the way, in the above embodiment, the presence of the suspicious object in the passenger compartment is described as “first fraud” described in the claims, and the vehicle doors other than the presence of the suspicious object in the passenger compartment are opened and the glass is broken. The vehicle theft act corresponds to the “second fraud” described in the claims, and the camera 26 corresponds to the “photographing means” recited in the claims.

  Further, the alarm control ECU 12 detects the suspicious object existing in the vehicle interior using the intrusion sensor 14, so that the “first fraud detection means” described in the claims is the glass break sensor 16 to the hood switch. The “second fraud detection means” described in the claims is detected by detecting a vehicle theft act such as opening the door of a vehicle other than the presence of a suspicious object in the passenger compartment or breaking a glass using the alarm device. The “vehicle theft suppression means” described in the claims allows the detection of the presence or absence of suspicious objects in the passenger compartment by the intrusion sensor 14 in the warning mode by photographing the vehicle alarm theft by the alarm 24 and the camera 26 By switching between the state and the restricted state, the "detection permission / inhibition control means" described in the claims FIG. 2 shows the “manual control means” described in the claims by switching the detection of the presence / absence of a suspicious object in the passenger compartment by the intrusion sensor 14 in the warning mode in accordance with the operation of the switch 28. The “automatic control means” described in the claims by executing the processing of step 104 in the routine shown in the figure, and the “photographing suppression means” described in the claims by photographing the vehicle theft by the camera 26 Are realized.

  In the above embodiment, the operation of the intrusion sensor detection changeover switch 28 provided in the passenger compartment allows the intrusion sensor 14 to detect the presence or absence of the suspicious object in the passenger compartment in the warning mode, and restricts the state. Although the switching structure is used, in addition to the operation of the intrusion sensor detection switch 28 provided in the passenger compartment, the vehicle occupant remotely operates the intrusion sensor 14 via the information center or the like by operating the portable terminal. It is good also as applying to the structure switched between the state which permits the detection of the presence or absence of a suspicious object indoors, and the state to restrict | limit.

  In the above embodiment, the intrusion sensor 14 is switched between a state in which the detection of the presence / absence of a suspicious object in the vehicle is permitted and a state in which the intrusion sensor 14 is restricted. It is good also as applying to the structure switched between the state which permits the detection of the vehicle theft act by any one, and the state to restrict | limit. Moreover, what is necessary is just to apply to the structure which switches the detection of the vehicle theft act by at least one among a sensor and switches 14-22 between a permission state and a restriction | limiting state.

  Further, in the above embodiment, in the situation where the presence / absence detection of the suspicious object in the vehicle interior by the intrusion sensor 14 is restricted, the alarm device 24 caused by the detection of the vehicle theft using the sensor or the switches 16 to 22 is used. When an alarm alarm is issued, the detection by the intrusion sensor 14 is switched from the restricted state to the permitted state. However, regardless of the alarm alarm by the alarm device 24, the vehicle theft is performed using the sensor or the switches 16-22. When detected, switching from the restricted state of detection by the intrusion sensor 14 to the permitted state may be performed.

  In the above embodiment, when a vehicle theft action is detected using the sensors and switches 14 to 22, the alarm device 24 issues an alarm alarm and the camera 26 takes a picture of the vehicle theft action. However, only one of them may be performed.

1 is a system configuration diagram of a vehicle antitheft device that is an embodiment of the present invention. It is a flowchart of the control routine performed in the vehicle antitheft device of the present embodiment.

Explanation of symbols

10 Vehicle anti-theft device 12 Alarm control ECU
14 Intrusion sensor 18 Tilt sensor 20 Courtesy switch 22 Hood switch 24 Alarm device 26 Camera 28 Intrusion sensor detection changeover switch

Claims (4)

A first fraud detecting means for detecting a first fraud against a vehicle; a second fraud detecting means for detecting a second fraud against a vehicle different from the first fraud; and the first Vehicle theft that performs an operation to suppress vehicle theft when the first fraud detection is detected by the second fraud detection means and when the second fraud detection is detected by the second fraud detection means A vehicle antitheft device comprising: suppression means; and detection permission / denial control means for permitting / limiting the detection of the first fraud by the first fraud detection means,
In the situation where the detection permission control means restricts the detection of the first fraud by the first fraud detection means, the second fraud detection is detected by the second fraud detection means. The anti-theft device for vehicles is characterized in that the detection of the first fraud by the first fraud detection means is switched from the restricted state to the permitted state. The detection permission control means includes:
Manual control means for switching detection of the first fraud by the first fraud detection means between a permitted state and a restricted state in accordance with an operation by an authorized vehicle user;
When the second fraud act is detected by the second cheating detection means in a situation where the detection of the first cheating act by the first fraud detection means is restricted by the manual control means Automatic control means for switching the detection of the first fraud by the first fraud detection means from a restricted state to a permitted state;
The vehicle antitheft device according to claim 1, comprising:   In the vehicle theft suppression means, the detection permission control means permits the first fraud detection by the first fraud detection means, and the first fraud detection means detects the first fraud. The vehicle antitheft device according to claim 1 or 2, further comprising a photographing control means for photographing the first fraud using the photographing means as an operation for suppressing vehicle theft when detected. .   4. The vehicle antitheft device according to any one of claims 1 to 3, wherein the first fraud detection means detects the presence of a suspicious object in a passenger compartment.

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