KR20050000289A - Vehicle sensor electromagnetic wave of a vehicle, especially comprising a tuning circuit separating electromagnetic wave from the vehicle - Google Patents

Abstract

PURPOSE: A vehicle sensor electromagnetic wave of a vehicle is provided to receive and amplify electromagnetic wave from the vehicle. CONSTITUTION: According to the vehicle sensor, a tuning circuit is constituted with a condenser(7) by winding a coil(3) around an iron core or a ferrite rod(5). The vehicle sensor transmits a vehicle sensing signal remotely by receiving and tuning and amplifying electromagnetic wave generated from a vehicle. The vehicle sensor receives the electromagnetic wave generated in the vehicle by separating only it from other electromagnetic wave, through the tuning circuit.

Description

Vehicle sensor to detect electromagnetic waves of a vehicle {omitted}

Disclosed is a vehicle sensor for detecting electromagnetic waves of a vehicle of the present invention.

Conventional vehicle detectors capable of detecting road occupancy or passing vehicles include loop sensors, cameras, and infrared transceivers.

The roof sensor is buried on the road and detects the vehicle with the change of magnetic field, that is, the change in inductance of the roof coil, and the camera method captures the vehicle with the motion information on the screen by capturing a certain space camera. The infrared transceiver scans the infrared beam at a predetermined position and receives the infrared signal reflected by the vehicle to obtain vehicle information.

As such, the reason for detecting the vehicle is actually applied and used for a great reason to reduce traffic congestion and provide optimum road service at an intersection.

However, in the case of loop sensors,

Considerable care is required and the heads are expensive, at hundreds of thousands of won.

In the case of using a camera as well, various facility equipment that requires additional equipment is also more expensive and reliability problems may occur due to weather effects such as thunder and fog.

Accordingly, the present invention provides a vehicle sensor that detects electromagnetic waves of a vehicle, which is economical and hardly affected by weather, and detects the presence or absence of a vehicle by detecting electromagnetic waves generated from handling and storage convenience and a vehicle.

A vehicle including a prime mover generates electromagnetic waves when the engine is electrically connected to a generator (or an alternator), a battery, an electronic controller, a headlight, or a car stereo.

It is an electromagnetic wave receiver that can receive the electromagnetic wave and check the vehicle's share on the road or the information of the passing vehicle, and it is easy to handle and can detect the vehicle stably for a long time. And it provides a vehicle sensor for detecting the electromagnetic waves of the vehicle consisting of a plastic shell after connecting the cable.

The vehicle sensor that detects the electromagnetic wave of the vehicle is installed on the road and can handle it for a long time, while being easy to handle and install, and realize the economic efficiency of low-cost band, and receive the electromagnetic waves generated in the air and the vehicle. Tuning circuit (Q) means that can separate only the electromagnetic waves generated by the provided and provides a vehicle sensor for detecting the electromagnetic waves of the vehicle as a function of amplifying the received electromagnetic waves.

1 is an external perspective view of a vehicle sensor detecting electromagnetic waves of a vehicle according to an embodiment of the present invention;

2 is a partially cutaway perspective view of FIG. 1;

3 is a circuit diagram of a vehicle sensor detecting electromagnetic waves of a vehicle according to an embodiment of the present invention;

4 is an application example of a vehicle sensor for detecting electromagnetic waves of a vehicle according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

1.vehicle sensor shell 3: coil

5: Iron core and ferrite rod 7: Condenser

9: Cables and wires 11: Amplifier circuit board

The vehicle sensor for detecting the electromagnetic wave of the present invention vehicle

This is a detector that can confirm the presence or absence of the vehicle by receiving amplification function of the electromagnetic waves generated from the electrical devices such as the engine, the generator (or altonator), the ignition plug in the vehicle 25.

When described in more detail by the accompanying drawings

first,

1 is an external perspective view of a vehicle sensor detecting electromagnetic waves of a vehicle according to an embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view of FIG. 1, in which a coil 3 is wound around tens or hundreds of times on an iron core or a ferrite rod 5 to form a resonant circuit using a capacitor 7, and a cable 9 and an amplification circuit 11. Is a vehicle sensor that detects electromagnetic waves of the completed vehicle to be protected by a plastic shell (1).

In other words,

The vehicle sensor has been devised means for receiving electromagnetic waves generated from the vehicle,

Figure 3 shows a circuit diagram of a vehicle sensor for detecting the electromagnetic wave of the present invention vehicle.

As shown in Figs. 2 and 3

Among the various electromagnetic waves received by the coil 3 and the condenser 7 in a resonant circuit,

It consists of a tuning circuit which is a means for separating and selecting electromagnetic waves generated only in a vehicle, and is amplified by an amplifier circuit 11 that amplifies received electromagnetic waves passing through the tuning circuit, and transmits signals to a long distance through a cable 9 such as a coaxial cable. It is a vehicle sensor.

Figure 4 is an application example of the vehicle sensor for detecting the electromagnetic wave of the present invention vehicle.

When the vehicle sensor detecting the electromagnetic wave of the present invention is embedded or installed on the road to receive and amplify the electromagnetic wave generated from the vehicle 25, a signal is transmitted to the controller 23 through a wire or a cable 9.

At this time, the controller 23 can control the traffic light 24 through the analysis of the signal of the vehicle by a program or the like, the traffic sensor for detecting the electromagnetic wave of the present invention vehicle that can provide an efficient intersection control and road service to be.

Preferred manufacturing method

Coil 3 is wound around iron core or ferrite rod 5 of length, and condenser 7 is connected to connect cable 9 together with amplifying circuit board 11, and the electromagnetic wave of the vehicle completed by plastic insert injection It is a vehicle sensor to detect.

That is, it is a vehicle sensor that detects electromagnetic waves of a vehicle, which is a feature capable of receiving vehicle presence information as a means for receiving electromagnetic waves generated in an automobile.

The vehicle sensor detecting the electromagnetic wave of the present invention vehicle

Low price, high volume production, and reliable vehicle detection function can be used to provide information on the road to enable full-sensitive intersection control, and to detect vehicles stably on the road for a long time. It is a vehicle sensor that detects electromagnetic waves of a vehicle, which can help to reduce costs and reduce traffic jams.

Claims (3)

In the vehicle detection sensor, The coil 3 is wound around the iron core or ferrite rod 5, and a tuning circuit is constructed by the condenser 7; A vehicle sensor that detects electromagnetic waves of a vehicle, which is characterized by means of receiving, tuning, and amplifying electromagnetic waves generated from a vehicle by means of an amplifier, and transmitting a vehicle detection signal to a long distance. The method according to claim 1, A vehicle sensor for detecting electromagnetic waves of a vehicle, which can receive and amplify only electromagnetic waves generated by a vehicle from other electromagnetic waves by a tuning circuit (Q). The method according to claim 1 and 2, In the manufacturing method of the vehicle sensor for detecting the electromagnetic wave of the vehicle, the coil 3 is wound on the iron core or ferrite rod 5 of a certain length several tens to hundreds of times, and the condenser 7 is connected to connect the wire or the cable 9. After that, A vehicle detection sensor for detecting electromagnetic waves of a vehicle, which is completed by forming a plastic shell (1) by plastic insert injection.