JP2006103576A - Vehicular anti-theft alarm device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular anti-theft alarm device 1 in a convertible 2 capable of consistently demonstrating a theft alarming action. <P>SOLUTION: An invasion sensor 8 to continuously or intermittently transmit radio waves in a cabin in an alarm state and receive the reflected radio waves is provided behind an instrument panel. A burglar horn 13 to provide a predetermined alarm when the predetermined change occurs in the reflected radio waves is provided. The radio waves are transmitted from the invasion sensor 8 toward the instrument panel 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle burglar alarm device in an open car.

  Conventionally, in a warning state such as theft prevention after door lock, an intrusion sensor that continuously or intermittently transmits ultrasonic waves and infrared rays into the passenger compartment and receives the reflected waves, and a predetermined change occurs in the reflected waves. 2. Description of the Related Art There is known a vehicle theft alarm device for an open car provided with an alarm means for performing a predetermined alarm when the vehicle is on.

In such a vehicle burglar alarm device, for example, an intrusion sensor composed of an ultrasonic transmitter and an ultrasonic receiver is provided in the center of the front header of an open car so as to detect the intrusion of a person into the vehicle interior. This is known (for example, see Patent Document 1).
JP 2000-142324 A (FIG. 2)

  By the way, in recent years, a radio wave type intrusion sensor using a radio wave transmitted through a non-metallic member has started to appear. By adopting this radio wave type intrusion sensor, for example, the intrusion sensor can be hidden inside a front header covered with a trim that is a non-metallic member to improve theft prevention performance.

  When this radio wave type intrusion sensor is installed at the center of the front header of an open car as before, the radio waves transmitted from the intrusion sensor diagonally downward and rearward are reflected by metal members such as the seat frame and floor panel that support the seat cushion. The reflected radio wave goes up as it is when the roof is open or closed but the roof is not made of metal. In this case, when there is a moving object such as a bird or a human hand above the roof, there is a possibility that an intruder has erroneously detected that the vehicle has entered the passenger compartment. Therefore, there is a problem that the sensitivity of the intrusion sensor is extremely deteriorated.

  In addition, when the intrusion sensor is provided in the side door, there is a problem that the intrusion sensor made of precision parts is damaged due to an impact at the time of opening and closing the door or intrusion of water.

  The present invention has been made in view of such various points, and an object of the present invention is to provide a stable burglar alarm by adding ingenuity to the arrangement of intrusion sensors in an open car radio wave vehicle burglar alarm device. It is to be able to demonstrate the operation.

  In order to achieve the above object, according to the present invention, the intrusion sensor is arranged in the passenger compartment behind the instrument panel.

  Specifically, in the first invention, an intrusion sensor that continuously or intermittently transmits a radio wave into a vehicle interior and receives a reflected radio wave in a warning state, and a predetermined time when a predetermined change occurs in the reflected radio wave. The object is a vehicle theft alarm device in an open car equipped with an alarm means for performing the alarm.

  The intrusion sensor is provided behind the instrument panel, and radio waves are transmitted from the intrusion sensor toward the instrument panel.

  According to said structure, since the intrusion sensor uses the radio wave which is easy to permeate | transmit other than a metal member, it can also be arrange | positioned also in the part covered with the nonmetallic member behind instrument panel. In the alert state, radio waves are transmitted continuously or intermittently from the intrusion sensor behind the instrument panel into the vehicle interior. This radio wave is reflected by a metal member in and around the instrument panel, and mainly reflected behind the instrument panel, so that the intrusion sensor receives the reflected radio wave. Therefore, when a predetermined change occurs in the reflected radio wave, the intrusion sensor detects the change, and an alarm is issued by the alarm means.

  In the second invention, the intrusion sensor is disposed so as to transmit a radio wave perpendicular to the dash panel.

  According to the above configuration, the radio wave transmitted from the intrusion sensor is reflected perpendicularly to the dash panel that mainly partitions the engine room and the vehicle compartment, and the reflected radio wave is received by the intrusion sensor.

  In a third aspect of the invention, the intrusion sensor is disposed so as to transmit a radio wave toward the lower side of the instrument panel protruding rearward of the vehicle body.

  According to the above configuration, the radio wave transmitted from the intrusion sensor is irregularly reflected mainly by the metal member such as a floor panel below the instrument panel and the metal member in the instrument panel, and the reflected radio wave is received by the intrusion sensor.

  In a fourth aspect of the invention, the intrusion sensor is disposed so as to transmit a radio wave forward and downward of the vehicle body.

  According to the above configuration, radio waves transmitted from the intrusion sensor are irregularly reflected mainly by metal members such as a dash panel in front of the vehicle body and a floor panel below the vehicle body, and the reflected radio waves are received by the intrusion sensor.

  In 5th invention, the said intrusion sensor is provided in the console part between front seats.

  According to said structure, an intrusion sensor is provided in the part protruded upwards from the floor of a vehicle between the front seats called the console part between front seats.

  In a sixth aspect based on the fifth aspect, the intrusion sensor is disposed behind the front seat, and the vehicle operating device is disposed closer to the vehicle in the left-right direction. A non-metallic member of the front seat is present between the driving operation device and a radio wave is transmitted from the intrusion sensor toward the driving operation device.

  That is, although the vehicle operation device is also monitored by the intrusion sensor, the drive operation device is arranged closer to one side in the left-right direction of the vehicle, so when trying to monitor the instrument panel and the operation device together, Although the monitoring range becomes too wide, increasing the monitoring possible angle of the intrusion sensor increases the cost of the intrusion sensor. Therefore, in the configuration of the present invention, the intrusion sensor is arranged behind the front seat until the non-metal portion of the front seat is partially transmitted, and the radio wave transmitted from the intrusion sensor is transmitted to the console section or the front seat. The non-metal portion of the seat is permeated to reach the vehicle operating device. For this reason, when an intruder tries to invade the vehicle, it touches the radio wave transmitted toward the driving operation device of the vehicle, so that a predetermined change occurs in the reflected radio wave, the intrusion sensor detects the intruder, and the alarm device An alarm is issued.

  As described above, according to the first invention, in the alert state, radio waves are continuously or intermittently transmitted from the intrusion sensor provided behind the instrument panel toward the instrument panel, and a predetermined change in the reflected radio waves is entered. It is received by the sensor, and a predetermined alarm is given by the alarm means. For this reason, the transmitted radio wave from the intrusion sensor is reflected by the metal member mainly in the instrument panel and its surroundings and is received by the intrusion sensor, so that the amount of the reflected radio wave rising upward is reduced and more than the roof. When a moving object such as a bird or a person's hand is present above, it is possible to prevent theft of the instrument panel with high accuracy by preventing erroneous detection that an intruder has entered the vehicle interior.

  In the second aspect of the invention, the intrusion sensor is disposed so as to transmit a radio wave perpendicular to the dash panel. In the third aspect of the invention, the intrusion sensor transmits the radio wave toward the lower side of the instrument panel protruding rearward of the vehicle body. In the fourth aspect of the invention, the intrusion sensor is disposed so as to transmit radio waves toward the front and downward of the vehicle body. According to these inventions, the amount of reflected radio waves rising upward can be reduced, and a moving object above the roof can be prevented from being erroneously detected, thereby preventing theft more reliably.

  According to the fifth aspect, the intrusion sensor is provided in the console portion between the front seats. For this reason, since an intrusion sensor can be provided in the existing console part, without providing a separate new protrusion part, cost reduction can be achieved and theft prevention can be performed efficiently.

  According to the sixth aspect of the invention, the intrusion sensor is arranged behind the front seat until a part of the non-metal portion of the front seat is transmitted, and the radio wave of the intrusion sensor is transmitted to the driving operation device of the vehicle. is doing. For this reason, since the instrument panel surface and the driving operation device can be monitored together without making the monitoring angle of the intrusion sensor so wide, it is possible to reliably prevent theft while reducing costs.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the following embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

  FIG.1 and FIG.2 shows the compartment of the open car 2 in which the vehicle burglar alarm device 1 concerning embodiment of this invention was provided. The open car 2 is a right-hand drive car and has a row of front seats 4 behind the instrument panel 3. The rear end portion of the floor panel 5 below the front seat 4 is connected to a kick-up portion 6 that rises behind the front seat 4. A rear console portion 7 is provided between the front seats 4 in front of the kick-up portion 6 so as to protrude forward from the kick-up portion 6. The rear console portion 7 is positioned between the front seats 4 in a top view, protrudes upward from the floor panel 5 (floor tunnel portion 12), and is positioned in front of the kick-up portion 6 and behind the front seat 4 in the vehicle. It is formed so as to rise above the floor tunnel portion 12 disposed between the front seats 4 from the front to the rear. A dash panel 10 that partitions the engine room and the passenger compartment is provided in front of the instrument panel 3 substantially perpendicularly to the floor panel 5.

  The rear console portion 7 is made of a resin molded product, and an intrusion sensor 8 of the vehicle burglar alarm device 1 is provided therein.

  The vehicle burglar alarm device 1 includes a burglar horn 13 as an alarm means for performing a predetermined alarm when a predetermined change occurs in the reflected radio wave. Since the intrusion sensor 8 and the burglar horn 13 are connected to the CPU 15 by the harness 14, the vehicle burglar alarm device 1 cannot be visually recognized from the outside. This CPU 15 is configured to perform alarm control.

  The intrusion sensor 8 includes a radio wave transmitter and a radio wave receiver (both not shown), and is arranged so that a radio wave is transmitted toward the instrument panel 3.

  Various cases are conceivable for the installation angle of the intrusion sensor 8. For example, as shown in FIG. 1, the intrusion sensor 8 is provided so as to be inclined slightly toward the front side (for example, 35 °) with respect to the floor panel 5. 1 and FIG. 2, the intrusion sensor 8 is installed in the vehicle compartment in a wide range extending to the entire instrument panel 3 and the vehicle operation device 9 (for example, the handle 11, the operation pedal, etc.). Intruders can be detected.

  That is, since the intrusion sensor 8 is provided in the rear console section 7, the rear console section 7 and the front seat 4 are present in front of the intrusion sensor 8, but radio waves pass through the non-metallic member. Radio waves reach the driving operation device 9 as well.

-Description of operation-
Next, the operation of the vehicle burglar alarm device 1 according to the present embodiment will be described.

  First, in a normal non-warning state, the intrusion sensor 8 is OFF.

  Then, for example, after a driver or the like has locked the door, a warning state is entered after 20 seconds. In this alert state, radio waves are transmitted continuously or intermittently from the intrusion sensor 8 behind the instrument panel 3 into the passenger compartment. That is, the intrusion sensor 8 may transmit radio waves continuously after being turned on, or may transmit radio waves every few seconds for several seconds.

  The radio waves are reflected by metal members around the instrument panel 3 and mainly reflected behind the instrument panel 3, so that the intrusion sensor 8 receives the reflected radio waves.

  Since there is no change in the reflected radio wave when there is no intruder, the intrusion sensor 8 determines that there is no intruder. Therefore, no signal is sent to the CPU 15.

  On the other hand, when the intruder moves the baggage of the front seat 4, touches the instrument panel 3, sits on the front seat 4, or operates the vehicle operation device 9, the steady state The reflected radio wave is disturbed, and the change is detected by the intrusion sensor 8. Then, the signal is transmitted to the CPU 15 and an alarm is given by the burglar horn 13.

-Effect of the embodiment-
Therefore, according to the vehicle burglar alarm device 1 according to the embodiment of the present invention, in an alert state, a radio wave is transmitted continuously or intermittently from the intrusion sensor 8 provided behind the instrument panel 3 toward the instrument panel 3, and reflected. A predetermined change in the radio wave is received by the intrusion sensor 8 and a predetermined alarm is given by the burglar horn 13. For this reason, since the transmitted radio wave from the intrusion sensor 8 is mainly reflected by the metal member near the instrument panel 3 and received by the intrusion sensor 8, the amount of the reflected radio wave rising upward is reduced and more than the roof. It is possible to prevent theft of the instrument panel 3 with high accuracy by preventing erroneous detection that an intruder has entered the vehicle interior when a moving object such as a bird or a human hand is present above.

  In the present embodiment, the intrusion sensor 8 is provided in the rear console portion 7 between the front seats 4. For this reason, since the intrusion sensor 8 can be provided in the existing rear console part 7 so that it cannot be seen from the outside, it is possible to prevent theft more reliably.

  In the present embodiment, the intrusion sensor 8 is arranged behind the front seat 4 until a part of the non-metal portion of the front seat 4 is transmitted, and the radio wave of the intrusion sensor 8 is directed to the driving operation device 9 of the vehicle. Outgoing. For this reason, since the instrument panel 3 and the operating device 9 can be monitored together without making the monitoring possible angle of the intrusion sensor 8 so wide, it is possible to reliably prevent theft while reducing costs. .

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, the intrusion sensor 8 is disposed so as to transmit a radio wave vertically to the dash panel 10, is disposed so as to transmit a radio wave toward the lower side of the instrument panel 3 protruding rearward of the vehicle body, You may arrange | position so that an electromagnetic wave may be transmitted toward. Also in this case, it is possible to reduce the amount of reflected radio waves rising upward, and to prevent theft more reliably by preventing erroneous detection of a moving object above the roof.

  The range of radio waves transmitted from the intrusion sensor 8 can be adjusted by the sensitivity of the intrusion sensor 8.

  In the above embodiment, the open car with a right steering wheel is targeted. However, the present invention can also be applied to a left steering wheel.

  Furthermore, in the above embodiment, an open car is targeted. However, the present invention is also applicable to a vehicle in which a part of a roof such as a T-bar roof is not a metal member.

  As described above, the present invention is useful for a vehicle burglar alarm device including an intrusion sensor using radio waves in an open car.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing a partially cutaway compartment of an open car equipped with a vehicle theft alarm device according to an embodiment of the present invention. It is a top view which shows the compartment of the open car provided with the burglar alarm device for vehicles concerning embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle burglar alarm device 2 Open car 3 Instrument panel 4 Front seat 5 Floor panel 7 Rear console part 8 Intrusion sensor 13 Burglar horn (alarm means)

Claims (6)

Open with an intrusion sensor that transmits radio waves continuously or intermittently and receives reflected radio waves in a warning state, and alarm means that gives a predetermined alarm when a predetermined change occurs in the reflected radio waves A vehicle burglar alarm device in a car,
The vehicle intrusion alarm device, wherein the intrusion sensor is provided behind the instrument panel, and radio waves are transmitted from the intrusion sensor toward the instrument panel. The vehicle burglar alarm device according to claim 1,
The vehicle intrusion alarm device, wherein the intrusion sensor is disposed so as to transmit a radio wave perpendicular to the dash panel. The vehicle burglar alarm device according to claim 1,
The vehicle intrusion alarm device, wherein the intrusion sensor is disposed so as to emit a radio wave toward a lower side of an instrument panel protruding rearward of the vehicle body. The vehicle burglar alarm device according to claim 1,
The vehicle intrusion alarm device, wherein the intrusion sensor is disposed so as to transmit a radio wave toward the front and downward of the vehicle body. The vehicle burglar alarm device according to claim 1,
The vehicle burglar alarm device, wherein the intrusion sensor is provided in a console portion between front seats. The vehicle burglar alarm device according to claim 5,
The intrusion sensor is disposed rearward of the front seat, the driving operation device of the vehicle is disposed closer to one side in the left-right direction of the vehicle, and the front seat is disposed between the intrusion sensor and the driving operation device. There are non-metallic parts,
A burglar alarm device for vehicles, wherein radio waves are transmitted from the intrusion sensor toward the driving operation device.

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