JP2011105165A - Security device for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a security device for an automobile, which can fulfill its function even in the case of having difficulty in detecting breakage of window glass. <P>SOLUTION: A biasing member 40 biases the window glass of a vehicle. The displacement of the biasing member 40 with the breakage of the window glass 5 is detected by a magnetic sensor 61. A microcomputer activates an infrared sensor for detecting an intruder into the interior of the vehicle at the time of detecting the abnormal behavior of the window glass 5 with the magnetic sensor 61 following the impact against the window glass 5. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an automobile crime prevention device.

  As an example of an automobile crime prevention device, Patent Document 1 discloses a breakage detection device for an openable / closable window glass. This device uses a clip that sandwiches the window glass to pulverize the edge of the window glass when the window glass breaks, and changes the at least part of the clip by a magnetic sensor disposed opposite to the magnet provided on the clip. It is configured to detect.

JP 2009-83624 A

When glass breakage occurs, there is a possibility that the clip does not function well and the change in magnetic force is small, or if the change in magnetic force is small with laminated glass or the like, it may not be detected.
The present invention has been made under such a background, and an object of the present invention is to provide an automobile crime prevention device that can cope with a case where breakage of a window glass is difficult to detect.

  According to the first aspect of the present invention, a window glass breakage detector that urges a window glass of a vehicle, a displacement detector that detects a displacement of the window glass breakage detector associated with breakage of the window glass, and the window glass And a starting means for starting a device for detecting an intruder into the vehicle interior when an abnormal behavior of the window glass is detected by the displacement detecting means when an impact is applied to the vehicle. To do.

  According to the first aspect of the present invention, the window glass breakage detector urges the window glass of the vehicle, and the displacement of the window glass breakage detector due to the breakage of the window glass is detected by the displacement detector. In the starting means, when an abnormal behavior of the window glass is detected by the displacement detecting means when an impact is applied to the window glass, a device for detecting an intruder into the vehicle interior is started. Thereby, even when it is difficult to detect breakage of the window glass, it is possible to cope with it.

  The vehicle security device according to claim 1, wherein the device receives an intruder detection signal and an intruder detection signal transmitting means for transmitting an intruder detection signal into a vehicle interior. And an intruder detection signal receiving means.

  As described in claim 3, in the vehicle security device according to claim 2, the window glass breakage detector, the displacement detector, the intruder detection signal transmitter, and the intruder are provided on left and right doors of the vehicle. Intruder detection signal provided with an intruder detection signal provided at one of the left and right doors, and the intruder detection signal transmitted from the intruder detection signal transmission means provided at one of the left and right doors. It may be received by the signal receiving means.

  As described in claim 4, in the vehicle crime prevention device according to claim 2 or 3, the intruder detection signal transmitting means transmits the intruder detection signal to an occupant position of a seat in a vehicle cabin. Good.

  As described in claim 5, in the automobile crime prevention device according to any one of claims 2 to 4, the intruder detection signal may be infrared rays.

  ADVANTAGE OF THE INVENTION According to this invention, even when it is difficult to detect the failure | damage of a window glass, the automobile crime prevention apparatus which can respond can be provided.

(A) is a top view of a passenger car, (b) is a side view of a passenger car. The disassembled perspective view in the right front door in a passenger car. The schematic front view in the right front door in a passenger car. FIG. 4 is a longitudinal sectional view taken along line AA in FIG. 3. The perspective view of the crime prevention apparatus for motor vehicles. The electrical block diagram of the crime prevention apparatus for motor vehicles. The longitudinal cross-sectional view for demonstrating the effect | action of the crime prevention apparatus for motor vehicles. The flowchart for demonstrating the effect | action of the crime prevention apparatus for motor vehicles. The wave form diagram for demonstrating the effect | action of the crime prevention apparatus for motor vehicles. The wave form diagram for demonstrating the effect | action of the crime prevention apparatus for motor vehicles.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
FIG. 1 (a) shows a plan view of a passenger car, and FIG. 1 (b) shows a side view of the passenger car. I have. Each door D1, D2, D3, D4 has the same configuration.

FIG. 2 is an exploded perspective view of the right front door D1 in the passenger car C, and FIG. 3 is a schematic front view of the right front door D1 of the passenger car.
As shown in FIG. 2, the vehicle door 1 includes an outer panel 2 and an inner panel 3. A window glass 5 made of laminated glass is disposed between the outer panel 2 and the inner panel 3. A door trim is attached to the inner side of the inner panel 3 of the vehicle door 1.

  A window regulator 10 that moves the window glass 5 of the vehicle up and down to open and close is housed inside the vehicle door 1. In the present embodiment, an X-arm type window regulator is used as the window regulator 10. The inner panel 3 is provided with a door part assembly hole 3a, and a modular panel 6 is provided so as to close the door part assembly hole 3a.

  The X arm type window regulator 10 is supported on the outdoor surface of the modular panel 6 via a base plate (fixed base) 11. That is, the shaft 13 of the lift arm 12 of the X arm type window regulator 10 is supported on the base plate 11 fixed to the outdoor surface of the modular panel 6. An electric drive unit 14 is fixed to the base plate 11. As shown in FIG. 3, the lift arm 12 integrally has a sector gear (driven gear) 15 centered on a shaft 13, and the electric drive unit 14 of FIG. 2 has a pinion 16 (FIG. 3) that meshes with the sector gear 15. And its drive motor (not shown).

  In FIG. 3, the intermediate portion of the equalizer arm 18 is pivotally attached to the intermediate portion in the length direction of the lift arm 12 by a shaft 17. Guide pieces (rollers) 19 and 20 are pivotally attached to the upper end portions (tip portions) of the lift arm 12 and the equalizer arm 18 so as to be rotatable and tiltable, respectively. Roller) 21 is pivotally attached.

  The guide piece 19 of the lift arm 12 and the guide piece 20 of the equalizer arm 18 are movably fitted to the window glass bracket 22, and the guide piece 21 of the equalizer arm 18 is located on the outdoor side of the modular panel 6 in FIG. It is movably guided to an equalizer arm bracket (posture maintenance rail) 23 fixed to the surface.

  On the other hand, a window glass holder 24 is fixed to the lower edge of the window glass 5 at the front and rear thereof. The window glass holder 24 is fixed to the lower edge of the window glass 5 in advance, and the window glass 5 having the window glass holder 24 is inserted from the gap between the outer panel 2 and the inner panel 3, and the window glass bracket 22 is tightened by bolts 25. It is fixed to.

  As shown in FIG. 3, a pair of front and rear glass runs 26 are erected. The glass run 26 is made of a rubber material. The window glass 5 is movably supported by a pair of front and rear glass runs 26 as rail members. That is, the front and rear end portions of the window glass 5 are guided by the glass run 26 and can move up and down.

  When the pinion 16 is driven forward and backward via the electric drive unit 14 of FIG. 2, the lift arm 12 swings about the shaft 13 via the sector gear 15, and as a result, the window glass bracket 22 (window glass 5) is moved. The equalizer arm 18, the guide pieces 19, 20, 21 and the equalizer arm bracket 23 are moved up and down while being held in a substantially horizontal state. Thus, the window glass 5 is raised and lowered, and the opening 4 of the vehicle can be freely opened and closed by the window glass 5.

Although the configuration of the right front door D1 has been described with reference to FIGS. 2 and 3, the other doors (the left front door D2, the right rear door D3, and the left rear door D4) are the same as the configuration of the right front door D1.
As shown in FIG. 1, a security unit 30 is arranged inside the right front door D1, and a security unit 31 is arranged inside the left front door D2. Similarly, a security unit 32 is arranged inside the right rear door D3, and a security unit 33 is arranged inside the left rear door D4. The security units 30, 31, 32, and 33 have the same configuration.

  FIG. 4 shows a longitudinal section taken along line AA in FIG. 4 is a partial cross-sectional view of the left and right front doors (right front door D1, left front door D2). The security unit 30 (31) has an urging member 40 as a window glass breakage detector and a magnetic sensor 61 as a displacement detector. FIG. 5 shows a perspective view of the security unit 30 (31).

  In FIG. 4, a window glass 5 is disposed between the outer panel 2 and the inner panel 3 in a state of being sealed by a weather strip 7. A door trim 8 is disposed inside the inner panel 3. The biasing member 40 is attached in a state where the window glass bracket 22 and one side of the window glass 5 are installed, and biases one side of the window glass 5 so as to be displaced in accordance with the breakage of the window glass 5. Yes.

  In FIG. 5, the urging member 40 is configured by bending a leaf spring steel plate, specifically, a strip, and includes a vehicle body side arrangement portion 41, a window glass side arrangement portion 42, and an arcuate arm portion 43. The vehicle body side arrangement portion 41 has a flat plate shape, and an arc-shaped arm portion 43 extends from the upper end thereof, and a flat window glass side arrangement portion 42 extends from the upper end of the arm portion 43. The vehicle body side arrangement portion 41 is fixed to the indoor side surface of the window glass bracket (C channel member) 22. Further, the window glass side arrangement portion 42 is fixed to one surface of the window glass 5, that is, the indoor side surface (back surface 5 b), and the vehicle body side arrangement portion 41 and the window glass side arrangement portion 42 are connected by the arc-shaped arm portion 43. Has been. A plate-like permanent magnet 50 is fixed to the window glass side arrangement portion 42. The urging member 40 uses the vehicle body side arrangement portion 41 as a fixed end, and the window glass side arrangement portion 42 urges the rear surface 5b of the window glass 5 to the outdoor side (front surface 5a side) with a force F1. In this way, the biasing member 40 biases one side of the window glass 5.

  As shown in FIG. 4, a housing 60 is attached to the inner panel 3, and a magnetic sensor 61 is provided in the housing 60. The magnetic sensor 61 is spaced apart from the magnet 50 in the horizontal direction. The magnetic sensor 61 detects magnetism by the magnet 50, and the magnetism changes according to the distance from the magnet 50. The magnetic sensor 61 detects a displacement of at least a part of the urging member 40 due to the breakage of the window glass 5. The casing 60 is provided with an infrared LED 62, and infrared rays can be transmitted from the infrared LED 62 to a security unit at the door on the opposite side through a through hole 8a formed in the door trim 8. The housing 60 is provided with a phototransistor 63, which is turned on when receiving infrared rays transmitted from the security unit at the opposite door. An infrared sensor is constituted by the infrared LED 62 of one door and the phototransistor 63 of the other door, and this infrared sensor is a device for detecting an intruder into the vehicle interior. That is, the infrared sensor includes an infrared LED 62 as an intruder detection signal transmitting unit that transmits infrared rays as an intruder detection signal in the vehicle interior, and a phototransistor 63 as an intruder detection signal receiving unit that receives infrared rays. Yes.

  The configuration of the security unit 30 and the security unit 31 has been described with reference to FIGS. 4 and 5, but the security unit 32 and the security unit 33 have the same configuration as the security units 30 and 31, and the security units 32 and 33. The urging member 40, the magnetic sensor 61, the infrared LED 62, the phototransistor 63, and the like. A security device for automobiles is configured by using these security units 30, 31, 32, and 33.

  FIG. 6 shows an electrical configuration of the automobile crime prevention device. In FIG. 6, the structure of the security units 30, 31, 32, 33 for each door includes a magnetic sensor 61, a microcomputer 64, an infrared LED 62, and a phototransistor 63. A magnetic sensor 61, an infrared LED 62, and a phototransistor 63 are connected to the microcomputer 64. A body ECU 70 is connected to the microcomputer 64 in the security unit for each door. An alarm device 71 is connected to the body ECU 70. The alarm device 71 is a device that performs an alarm by sound or light, and specifically, for example, a horn (alarm) or a vehicle-mounted light (such as a headlamp) can be used. The body ECU 70 includes a parking brake operation signal (a signal associated with the operation of the parking brake), an engine stop signal (a signal associated with the ignition switch OFF operation), a door lock command signal (a signal associated with the door lock operation of the door lock operation switch). Etc. are sent.

Next, the operation of the vehicle security device configured as described above will be described.
First, the operation when the window glass 5 is broken (broken) will be described.
In a normal time, the biasing member 40 biases one side of the window glass 5 as shown in FIG. Further, the magnet 50 is located in front of the magnetic sensor 61 in a state where it is separated by a distance L1.

  When the occupant leaves the vehicle after parking, the engine is stopped and the parking brake is operated to close the door and lock the door. When the body ECU 70 detects parking of the vehicle from the engine stop signal, the parking brake operation signal, and the door lock command signal, the body ECU 70 instructs the microcomputer 64 of each crime prevention unit 30, 31, 32, 33 to perform glass break sensing.

  When the window glass 5 is broken from the state shown in FIG. 4, the strength of the window glass 5 is reduced, and the urging force of the urging member 40 is caused by the urging force of the window glass 5 as shown in FIG. 7. Crushing in a partial region of the glass 5 is performed.

  As a result, the magnet 50 is displaced (moved) to the left in FIG. 7, and the magnetic sensor 61 detects the displacement of the magnet 50 as the horizontal distance L from the magnet 50 increases. That is, before the window glass 5 is broken in FIG. 4, the distance between the magnet 50 and the magnetic sensor 61 is L1, but when the window glass 5 is broken as shown in FIG. The distance between the magnetic sensor 61 and the magnetic sensor 61 becomes L2, and the displacement of the magnet 50 due to the breakage of the window glass 5 is detected by detecting the magnetic change by the magnetic sensor 61.

  As a result, breakage of the window glass 5 can be detected. That is, breakage of the window glass can be detected by applying a force to one point on one side of the window glass 5 to break the window glass and detect the movement of the urging member 40.

Next, the processing of the microcomputer 64 will be described using the flowchart shown in FIG. 8 and the time chart shown in FIG.
The microcomputer 64 in the security unit 30, 31, 32, 33 for each door starts glass break sensing in accordance with an instruction from the body ECU 70 in step 100 of FIG. In step 101, the microcomputer 64 determines the output voltage value of the magnetic sensor 61 to determine whether or not it is equal to or higher than the threshold value Vth1 shown in FIG. If the output voltage value of the magnetic sensor 61 is less than the threshold value Vth1, the microcomputer 64 stops the warning for window opening determination and crime prevention in step 102. That is, if the output voltage value of the magnetic sensor 61 is less than the threshold value Vth1 when the occupant leaves the vehicle, it is determined that the window glass 5 is opened by several centimeters or more and the alarm device 71 is activated to open the window greatly. Alarm that there is. The driver moves the window glass 5 up to close the window.

  On the other hand, if the microcomputer 64 determines the output voltage value of the magnetic sensor 61 in step 101 and is equal to or higher than the threshold value Vth1, the microcomputer 64 proceeds to step 103 and determines that the window position is good and starts a security operation for crime prevention. To do. Then, the microcomputer 64 starts monitoring the output voltage of the magnetic sensor 61 in step 104, determines the output voltage value of the magnetic sensor 61 in step 105, and the output voltage value of the magnetic sensor 61 is as shown in FIG. If it is within the predetermined range ΔV1 between the threshold values Vth3 and Vth4, it is determined in step 106 that there is no glass break, and the process returns to step 104.

  Further, when the output voltage value of the magnetic sensor 61 is equal to or lower than the threshold value Vth2 as shown in FIG. 9 (for example, at the timing t10 in FIG. 9) in Step 105, the microcomputer 64 proceeds to Step 107. The microcomputer 64 activates the alarm device 71 via the body ECU 70 in step 108 and issues an alarm in step 108 because glass breakage occurs in step 107.

  Further, in step 105, the microcomputer 64 determines that the output voltage value of the magnetic sensor 61 is within a predetermined range ΔV2 between the threshold values Vth2 and Vth3 as shown in FIG. 9, that is, in the period from t1 to t2 in FIG. If the output signal of the magnetic sensor 61 vibrates and deviates from the range of ΔV1 and enters the range of ΔV2, the infrared sensor is activated (started) in step 109 because the possibility of glass breakage is large. That is, the light projecting operation by the infrared LED 62 and the light receiving operation by the phototransistor 63 are started. In addition, the microcomputer 64 starts the infrared sensor (infrared LED 62, phototransistor 63) of another security unit via the body ECU 70.

  After performing the process of step 109, the microcomputer 64 determines an intruder using an infrared sensor in step 110. If there is an intruder, the microcomputer 64 determines that there is an intruder in step 111. In step 112, the microcomputer 64 operates the alarm device 71 via the body ECU 70 to issue an alarm.

  On the other hand, if there is no intruder in step 110, the microcomputer 64 proceeds to step 113 to determine that there is no intruder. In step 114, the microcomputer 64 continues to determine the intruder by the infrared sensor. The process returns to step 114 because there is no intruder. If there is an intruder in step 114, the microcomputer 64 determines in step 116 that there is an intruder. In step 112, the microcomputer 64 operates the alarm device 71 via the body ECU 70 to issue an alarm.

Further, the microcomputer 64 proceeds to step 109 even after the processing of step 108.
In this way, the vibration of the window glass 5 due to the execution of glass splitting is detected by the magnetic sensor 61 and the infrared sensor is started (light emitting operation by the infrared LED 62, light receiving operation by the phototransistor 63 is started), The detection of the passenger compartment is started, and an intruder enters the passenger compartment and issues an alarm when the infrared rays are blocked. Alternatively, an alarm is generated when the phototransistor 63 cannot receive the infrared light when the door is opened.

Next, the principle by which the vibration when the laminated glass is broken can be detected will be described.
When a laminated glass is used for the window glass, the laminated glass is a glass excellent in crime prevention, so that a through-hole cannot be formed by a single glass breaking action.

  To make a hole, it is necessary to destroy the glass (blow) many times with a sharp tool such as a bar. Therefore, an impact is applied to the window glass that many times, and the window glass itself vibrates at least that many times. The vibration of the window glass appears in the period from t1 to t2 in the output waveform of the magnetic sensor 61 in FIG. 9, and the vibration when the laminated glass is broken can be detected by detecting this vibration.

  Then, when the laminated glass is used as the window glass, the change in the magnetic force is small and it is not possible to determine that the glass breakage has been detected (when it is difficult to detect the breakage of the window glass). , 32 and 33, the infrared sensor (infrared LED 62, phototransistor 63) is started to detect an intruder. At this time, the crime prevention units 32 and 33 are arranged on the left and right doors of the rear door, and the following effects are obtained. When an intruder is detected by an ultrasonic sensor as an intrusion sensor incorporated in an overhead console in the passenger compartment, the back of the front seat becomes a shadow, and no person can be detected in this portion. On the other hand, in this embodiment, intruders can be detected even in the shaded portion of the front seat by providing security units 32 and 33 on the left and right rear doors and transmitting and receiving infrared rays between the left and right doors.

  Further, in the present embodiment, it is possible to prevent malfunction (false alarm) as compared with a case where a crime prevention system is constructed by using two detection devices (for example, a vibration sensor and an intrusion sensor) simultaneously. Specifically, for example, when a pet (small animal) is present in the passenger compartment, a system that detects an abnormality with two types of sensors detects the pet and issues an alarm. On the other hand, in this embodiment, if the window glass does not vibrate (or if the door is not opened), the detection of the intruder in the vehicle interior is not started, so that the pet is not regarded as an intruder and no alarm is given.

  In addition to detecting vibration as an abnormal behavior of the window glass 5 due to an impact applied to the window glass 5, it may be considered as an abnormal behavior of the window glass 5 that the position of the window glass 5 has shifted. This will be specifically described. The output waveform of the magnetic sensor shown in FIG. 10 shows a case in which a hit is applied to the window glass 5 continuously without breaking even if a hit is applied to the window glass 5 because of a bar. Since the position of the window glass is shifted due to the impact, the sensor output level changes and becomes equal to or lower than the threshold value Vth3 at the timing t20, and an abnormality is detected. That is, the microcomputer 64 proceeds from step 105 in FIG. 8 to step 109, and activates the infrared sensor because there is a high possibility of glass breakage.

As described above, according to the present embodiment, the following effects can be obtained.
(1) The displacement of the urging member 40 accompanying the breakage of the window glass 5 is detected by the magnetic sensor 61. On the other hand, the microcomputer 64 serving as the starting means causes an abnormal behavior of the window glass 5 by the magnetic sensor 61 due to an impact applied to the window glass 5 in step 105 of FIG. 6 (vibration shown in FIG. 9 or shown in FIG. 10). When the position shift is detected, the routine proceeds to step 109, where the intruder detection infrared sensor (infrared LED 62, phototransistor 63) is started. Thereby, even when it is difficult to detect breakage of the window glass, it is possible to cope with it. Specifically, it is possible to cope with a case where the change in magnetic force is small and it cannot be determined that glass breakage is detected.

  (2) The infrared sensor for intruder detection includes an infrared LED 62 that transmits infrared rays into the vehicle interior and a phototransistor 63 that receives infrared rays. As a result, it is possible to construct a detection system that detects an intruder into the vehicle interior when the phototransistor 63 cannot receive infrared rays.

  (3) The urging member 40, the magnetic sensor 61, the infrared LED 62, and the phototransistor 63 are provided on the left and right doors (D1 and D2, D3 and D4) of the vehicle, respectively. Infrared light transmitted from the provided infrared LED 62 is received by the phototransistor 63 provided on the other door. As a result, even when the car navigation device is stolen, there is a high possibility that the infrared ray is blocked by the theft operation, and the car navigation device can be easily detected. In addition, infrared light is transmitted and received between the security units 30 and 31 (and between the security units 32 and 33) at the left and right doors, and the security units 30, 31, 32, and 33 are near the belt line of each door. Therefore, the object to be stolen is likely to block infrared rays and is easy to detect.

(4) Since the infrared LED 62 transmits infrared rays to the occupant position of the seat in the passenger compartment, it is preferable for detecting an intruder.
(5) Since the intruder detection signal is infrared, it can be made less susceptible to noise.

  (6) The window glass 5 is made of laminated glass. In this case, unless the windon glass is struck many times, a through hole cannot be made, so that abnormal behavior (vibration shown in FIG. This method for detecting misalignment) is useful.

The embodiment is not limited to the above, and may be embodied as follows, for example.
Although the X-arm type window regulator is used as the window regulator, a cable-type window regulator may be used.

The driving means is not limited to the one having a motor, but may be manually operated by a passenger.
-Although the magnetic sensor 61 was used as a displacement detection means which detects the displacement of the biasing member 40 as a window glass breakage detection tool, it is not restricted to this. For example, an optical sensor may be used.

  -The optical sensor for detecting an intruder may not be paired on the left and right (not limited to a method for transmitting and receiving light), or may be detected by a change in reflected waves (a reflective method may be used). Or the sensor of the system which detects the infrared rays which a person emits may be sufficient.

  A sensor for detecting an intruder may use another light sensor instead of the infrared sensor. Alternatively, an ultrasonic sensor may be used. Alternatively, a capacitive sensor may be used. Alternatively, a camera may be used.

-The window glass may be laminated glass or tempered glass.
-In addition to the side door, the present invention may be applied to an openable glass roof provided on the rear door or the roof.

A notification to an external device of the vehicle may be used instead of the alarm by the alarm device 71 when the breakage of the window glass is detected or when an intruder is detected.
An urging member 40 is used as a window glass detector, and this urging member 40 is attached in a state where the window glass bracket 22 and one side of the window glass 5 are installed, and the window glass 5 is energized to energize the window. It was set as the structure displaced according to the failure | damage of the glass 5. FIG. Instead of this, a clip that sandwiches the window glass 5 may be used as the window glass detector, and the window glass 5 may be displaced as the window glass 5 is broken.

  The displacement in the horizontal direction of the window glass side arrangement part 42 of the biasing member 40 due to the breakage of the window glass was detected by the magnetic sensor 61. Instead of this, the fall of the window glass breakage detection tool accompanying the breakage of the window glass may be detected as the displacement of the detection tool.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle door, 5 ... Window glass, 40 ... Energizing member, 61 ... Magnetic sensor, 62 ... Infrared LED, 63 ... Phototransistor, 64 ... Microcomputer, D1 ... Right front door, D2 ... Left front door, D3 ... Right rear door , D4 ... Left rear door.

Claims (5)

A window glass breakage detector for energizing the window glass of the vehicle;
Displacement detection means for detecting displacement of the window glass breakage detector due to breakage of the window glass;
When detecting an abnormal behavior of the window glass by the displacement detecting means accompanying the impact on the window glass, a starting means for starting a device for detecting an intruder into the vehicle interior;
An automobile crime prevention device characterized by comprising:   The said apparatus is provided with the intruder detection signal transmission means which transmits an intruder detection signal in a vehicle interior, and the intruder detection signal reception means which receives the said intruder detection signal. Security equipment for automobiles.   The window glass breakage detector, the displacement detection means, the intruder detection signal transmission means, and the intruder detection signal reception means are respectively provided on the left and right doors of the vehicle, and one of the left and right doors The intruder detection signal transmitted from the intruder detection signal transmitting means provided on the door is received by the intruder detection signal receiving means provided on the other door. .   The automobile crime prevention device according to claim 2 or 3, wherein the intruder detection signal transmitting means transmits the intruder detection signal to an occupant position of a seat in a vehicle cabin.   The automobile crime prevention device according to any one of claims 2 to 4, wherein the intruder detection signal is infrared rays.

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