CN203275655U

CN203275655U - Vehicle-mounted laser two-point width measuring radar

Info

Publication number: CN203275655U
Application number: CN 201220561397
Authority: CN
Inventors: 马岩; 杨春梅; 岳彩裙; 任洪娥
Original assignee: Northeast Forestry University
Current assignee: Northeast Forestry University
Priority date: 2012-10-30
Filing date: 2012-10-30
Publication date: 2013-11-06
Anticipated expiration: 2022-10-30

Abstract

Provided is a vehicle-mounted laser two-point width measuring radar, comprising five parts of a liquid crystal display module, a push-button panel module, a housing module, a clamp module, and a laser ranging module, wherein the liquid crystal display module uses a TFT color screen. The housing module is disposed on a front part of a vehicle through the clamp module. The laser ranging module comprises a laser receiver and laser emitters. The laser receiver is disposed on a middle position, and two laser emitters are symmetrically disposed on two sides of the laser receiver at an angle of 18 DEG. The laser emitters are used to emit signals, and the laser receiver between the laser emitters is used to receive signals reflected by a target. A main body of the instrument is disposed on a right ahead external of the vehicle, and is connected with the display screen in the vehicle through wires. Buttons which can be operated are connected below the display screen.

Description

The vehicle-mounted laser two point is surveyed wide radar

Technical field

This utility model technology relates to a kind of range finder using laser, definite says a kind of range finder using laser of measuring the measured target width by the two laser heads with certain angle.

Background technology

At present, the system that a lot of raisings can improve vehicle safety performance has appearred on the market, such as radar for backing car, anticollision warning system etc., but mostly all be not applied to low-grade vehicle, agri-vehicle etc.

The utility model content

The utility model purpose is to be applied to be used for measuring the trafficability characteristic in road ahead, bridge or tunnel etc. on the vehicles such as low-grade vehicle, agri-vehicle, perhaps measures the width of the place ahead barrier etc., improves the security performance of vehicle.

In order to achieve the above object, the technical solution adopted in the utility model is: laser double point is surveyed wide radar and is comprised of LCD MODULE, push-botton operation plate module, housing module, fixture module, laser ranging module five parts, and wherein LCD MODULE adopts the TFT color screen; Housing module is arranged on the place ahead of vehicle by the fixture module; The laser ranging module is comprised of laser pickoff, generating laser, and laser pickoff is placed on the centre position, and two generating lasers are the both sides that 18 ° of angle symmetries are placed on laser pickoff.Generating laser is used for transmitting, laser pickoff in the middle of two generating lasers is used for the signal that receiving target reflects, the main body of instrument is arranged on the dead ahead of the outside of vehicle, and being mounted on the display screen of car room by electric wire, the display screen below connects can be for the button of operation.

Laser measuring apparatus utilizes the two visible laser beam of bundle, and it is radiated on the edge of measured target, and can calculate the width L of measured target by the angle between distance B and two bundle laser beam this moment:

L=2×D×tanα

In formula:

L-measured target width;

The horizontal range of D-measuring instrument and measured target;

Half of α-laser beam angle is 9 °

In following formula, because horizontal range is measured by microwave ranger, the data of measuring are calculated by numerical control unit and store, utilize above-mentioned formula to calculate the width of measured target, because having two bundles, measuring instrument is the laser beam of 18 ° of angles, angle immobilizes, thereby can ignore the error of angle in computation process.

The utility model advantage is: adopt laser ranging, the time is short, range is large, precision is high, can improve the safety traffic performance of vehicle, the incidence of reduction traffic hazard.

Description of drawings

Fig. 1 vehicle-mounted laser two point is surveyed wide radar and is formed structural drawing

Fig. 2 measuring principle figure

Fig. 3 laser ranging modular structure figure

1. LCD MODULE 2. push-botton operation plate module 3. housing module 4. fixture module 5. laser ranging modules in figure

Embodiment

Below in conjunction with accompanying drawing, case study on implementation of the present utility model is described in further detail: the vehicle-mounted laser two point is surveyed wide radar and is comprised of 5 major parts, is respectively LCD MODULE (1), push-botton operation plate module (2), housing module (3), fixture module (4), laser ranging module (5).

The below is introduced each several part installation composition and function:

(1), LCD MODULE (1) LCD MODULE and push-botton operation plate module be arranged on the manipulable position of driver, can facilitate the driver that measuring instrument is operated.Display is selected the TFT color screen, and the TFT color screen can be presented at the information of measuring on screen, analyzes for the operator.

(2), push-botton operation plate module (2) is by button panel, the driver can operate measuring instrument, carries out checking and the operation such as storing of data.

(3), housing module (3) measuring instrument selects portable ABS material plastic casing, mainly plays the function of protection instrument inner member.

(4), fixture module (4) fixture can be fixed on measuring instrument in the place ahead of vehicle, facilitates vehicle to measure in motion.

(5), laser ranging module (5) is comprised of laser pickoff (6), generating laser (7), major function is by generating laser (7) Emission Lasers, target is measured, the signal that is reflected by laser pickoff (6) receiving target, carry out again computing, thereby calculate the width of target.

Claims

1. a vehicle-mounted laser two point is surveyed wide radar, surveying wide radar is comprised of LCD MODULE (1), push-botton operation plate module (2), housing module (3), fixture module (4), laser ranging module (5) five parts, wherein laser ranging module (5) is comprised of laser pickoff (6) and generating laser (7), it is characterized in that: housing module (3), fixture module (4), laser ranging module (5) are connected and are arranged on the place ahead of vehicle by electric wire and LCD MODULE (1), push-botton operation plate module (2).

2. a kind of vehicle-mounted laser two point according to claim 1 is surveyed wide radar, it is characterized in that, described LCD MODULE (1) adopts the TFT color screen.

3. a kind of vehicle-mounted laser two point according to claim 1 is surveyed wide radar, it is characterized in that, described housing module (3) is arranged on the place ahead of vehicle by fixture module (4).

4. a kind of vehicle-mounted laser two point according to claim 1 is surveyed wide radar, it is characterized in that, described laser ranging module (5) is comprised of laser pickoff (6), generating laser (7), laser pickoff (6) is placed on the centre position, and two generating lasers (7) are the both sides that 18 ° of angle symmetries are placed on laser pickoff (6).