JP2007261315A - Antenna, vehicle door, vehicle and communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an antenna, a vehicle door, a vehicle and communication system capable of preventing them from being stolen, and in addition being easily found even if stolen. <P>SOLUTION: A door mirror 11 including a mirror part 12 as a mirror body and a holding part (holder) 13 for holding the mirror part 12, is oscillatably supported by a rod-like oscillation shaft 15 sticking out from a base 14 secured to a side door of a vehicle. The rod-like oscillation shaft 15 includes a built-in rod-like metallic antenna 16, and radio waves are transmitted therefrom mounted on the vehicle. A conductor 17 is attached to the antenna 16 and routed through the interior of the base 14 to a transmission circuit arranged inside the side door. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an antenna mounted on a vehicle, a vehicle door mounted with the antenna, a vehicle mounted with the vehicle door, and a communication system using the vehicle. Door, vehicle and communication system.

By transmitting a radio wave superimposed with identification information for identifying the vehicle from the vehicle, and receiving the vehicle at a parking lot, a road, a roadside, or the like where the vehicle is parked, stopped, or traveled, or in the vicinity thereof, the vehicle For example, Patent Document 1 discloses a system for preventing theft and detecting the position of a vehicle.
JP 2005-135262 A

  However, there are an increasing number of cases in which vehicles are stolen after illegally removing antennas that transmit radio waves. In a system having a function such as theft prevention, the function of the system is stopped by cutting the wiring with the antenna. Recently, the system itself has been downsized and the system is placed near the antenna, so the wiring itself has also been shortened. However, the location of the antenna can be easily found by bringing a receiver such as a radio close to it. The wiring connected to the antenna can be easily found. Therefore, the function of the entire system can be easily stopped by cutting the wiring and removing the antenna.

  The present invention has been made in view of such circumstances, and by incorporating an antenna in the swing shaft that supports the door mirror, it is possible to prevent the vehicle from being stolen and to detect the stolen vehicle at an early stage. It is an object of the present invention to provide a simple antenna, a vehicle door equipped with the antenna, a vehicle equipped with the vehicle door, and a communication system using the vehicle.

  An antenna according to a first aspect of the present invention is incorporated in a swing shaft that swingably supports a vehicle reflecting mirror.

  In the present invention, it is difficult to take out by incorporating it in a swinging shaft of a reflecting mirror such as a door mirror, and when the entire swinging shaft is removed, the door mirror is detached from the vehicle, so that it can be easily visually recognized from the outside. Since the vehicle is poorly maintained, the vehicle can be prevented from being stolen, and it can be easily detected when the vehicle is stolen. Furthermore, since the swing shaft has an appropriate shape for mounting an antenna for transmitting radio waves, the swing shaft and the antenna can be integrated so that the swing shaft itself can serve as an antenna. Is possible.

  According to a second aspect of the present invention, there is provided a vehicle door including a swing shaft for swinging the reflecting mirror and an antenna incorporated in the swing shaft.

  In the present invention, it is difficult to take out the antenna by incorporating the antenna into the swinging shaft of a reflecting mirror such as a door mirror, and when the antenna is removed together with the swinging shaft, the door mirror is detached from the vehicle, so that it is easy from the outside. Therefore, the vehicle is prevented from being stolen, and it is easy to find a stolen vehicle.

  A vehicle according to a third aspect of the invention includes a support that supports the reflecting mirror and an antenna that the support has.

  In the present invention, it is difficult to remove the antenna by incorporating the antenna into a support of a reflecting mirror such as a door mirror, and when the antenna is removed together with the support, the door mirror is detached, so that it can be easily viewed from the outside. This makes it a poorly maintained vehicle that can prevent theft and is easy to find when it is stolen.

  According to a fourth aspect of the present invention, there is provided a vehicle including a swing shaft that swingably supports the reflecting mirror, and an antenna incorporated in the swing shaft.

  In the present invention, it is extremely difficult to remove the antenna by incorporating the antenna into the support body of the reflecting mirror such as a door mirror, or by using the support body itself as an antenna, and when the antenna is removed together with the support body. Since the door mirror cannot be attached, it becomes a poorly maintained vehicle that can be easily visually recognized from the outside. Therefore, it is possible to prevent theft and to easily detect theft.

  A communication system according to a fifth invention comprises the vehicle according to the third or fourth invention and a receiver for receiving a radio wave transmitted from the vehicle, wherein the vehicle records identification information for identifying itself. And a transmitting circuit for transmitting a radio wave superimposed with identification information recorded in the memory from the antenna.

  By receiving the radio wave transmitted from the vehicle by the receiver, the vehicle can be prevented from being stolen and the position can be detected. When the receiver is disposed on the road side, the antenna is positioned substantially perpendicular to the direction of the receiver, so that directivity can be improved.

  The antenna, the vehicle door, the vehicle, and the communication system according to the present invention incorporate an antenna into a support such as a swing shaft that swingably supports a reflecting mirror such as a door mirror, and transmits identification information for identifying itself from the antenna. And received by the receiver.

  With this configuration, in the present invention, since the radio wave transmitted from the antenna is received by the receiver, the vehicle can be prevented from being stolen and the position can be detected, and even if the vehicle is stolen after illegally removing the antenna, Since it is incorporated in the shaft, it is difficult to remove. When the antenna is removed together with the swing shaft, the door mirror is detached from the vehicle body, so that it becomes a poorly maintained vehicle that can be easily seen from the outside. Vehicles with poor maintenance are prohibited by the Road Traffic Law, and vehicles without door mirrors can be easily seen from the outside. It has an excellent effect such as easy discovery when it is done.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. FIG. 1 is an explanatory diagram conceptually showing the communication system of the present invention. In FIG. 1, reference numeral 1 denotes a vehicle according to the present invention, and the vehicle 1 transmits radio waves such as ultra high frequency waves and microwaves on which identification information for identifying itself is superimposed. A radio wave transmitted from the vehicle 1 is received by a receiver 2 disposed at or near a place where the vehicle 1 is parked or traveled, such as a parking lot, a road, or a roadside. The receiver 2 detects the identification information superimposed on the received radio wave, and transmits the detected identification information to the communication device 3 such as a server computer. The communication device 3 receives the received identification information and the transmission source. The vehicle 1 is prevented from being stolen and the position is detected by determining the current position of the vehicle 1 based on information indicating the location where the machine 2 is disposed.

  FIG. 2 is an external view showing the vehicle 1 of the present invention. The vehicle 1 is equipped with a side door (vehicle door) 10 on the side, and a door mirror (reflecting mirror) 11 is projected from the side door 10.

  FIG. 3 is a three-sided view showing the appearance of the door mirror 11 projecting from the vehicle 1 of the present invention. FIG. 3 (a) is a plan view, FIG. 3 (b) is a front view, and FIG. It is a side view. The door mirror 11 includes a mirror portion 12 that is a mirror body and a holding portion (holder) 13 that holds the mirror portion 12. The door mirror 11 protrudes from a pedestal 14 that is fixed to the side door 10 of the vehicle 1. The shaft 15 is swingably supported. A metal antenna 16 having a rod shape is incorporated in the swing shaft 15, and the vehicle 1 transmits radio waves from the antenna 16. A conductive wire 17 is attached to the antenna 16, and the conductive wire 17 is routed through a base 14 to a transmission circuit (not shown) disposed in the side door 10.

  FIG. 4 is a block diagram showing the configuration of various circuits used in the communication system of the present invention. In FIG. 4, reference numeral 1 denotes a vehicle. The vehicle 1 includes an antenna 16, a conducting wire 17 attached to one end of the antenna 16, and a transmission circuit 18 attached to the other end of the conducting wire 17. The transmission circuit 18 is a kind of an electronic control unit (ECU) mounted on the vehicle 1, and a power supply unit 18 a that receives power supply from a power source (not shown) such as a lead storage battery mounted on the vehicle 1. And a memory 18b in which identification information for identifying the vehicle 1 is recorded, and a transmission control unit 18c for transmitting a radio wave superimposed with the identification information recorded in the memory 18b from the antenna 16.

  A radio wave transmitted from the transmission circuit 18 via the antenna 16 is received by the receiver 2. The receiver 2 includes a receiving antenna 21 that receives radio waves, a detection unit 22 that detects identification information superimposed on the received radio waves, and a transmission unit 23 that transmits the detected identification information to the communication device 3.

  In the above embodiment, the antenna is incorporated in the swing axis of the door mirror. However, the present invention is not limited to this, and the antenna is incorporated in a support body fixed to a vehicle body that supports a reflector such as a fender mirror. It is possible to develop in various forms such as. Further, it can be developed in various forms such as being incorporated in a support body (pillar) that supports the front window of the vehicle from the left and right.

  Further, in the above-described embodiment, the form in which the transmitting antenna is incorporated into the swing shaft has been described. However, the present invention is not limited to this, and can be developed in various forms, such as incorporating a receiving antenna or a transmitting / receiving antenna. It is possible.

  Further, in the above-described embodiment, the antenna is incorporated into the swing shaft. However, the swing shaft and the antenna may be integrated so that the swing shaft itself functions as an antenna.

It is explanatory drawing which shows notionally the communication system of this invention. It is an external view which shows the vehicle of this invention. It is a three-view figure which shows the external appearance of the door mirror projected in the vehicle of this invention. It is a block diagram which shows the structure of the various circuits etc. which are used in the communication system of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle 10 Side door 11 Door mirror 15 Oscillating shaft 16 Antenna 18 Transmission circuit 18b Memory 2 Receiver 3 Communication device

Claims (5)

  An antenna, which is incorporated in a swing shaft for swingably supporting a vehicle reflector. A swing shaft for swingably supporting the reflecting mirror;
A vehicle door comprising: an antenna incorporated in the swing shaft. A support that supports the reflector;
A vehicle comprising: an antenna of the support. A swing shaft for swingably supporting the reflector,
A vehicle comprising: an antenna built in the swing shaft. A vehicle according to claim 3 or claim 4;
A receiver for receiving radio waves transmitted from the vehicle,
The vehicle is
A memory storing identification information for identifying itself;
A transmission circuit for transmitting from the antenna a radio wave superimposed with identification information recorded in the memory.

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