CN107765274A

CN107765274A - A kind of global positioning system and its implementation

Info

Publication number: CN107765274A
Application number: CN201610781616.6A
Authority: CN
Inventors: 杨南; 杨一南
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-19
Filing date: 2016-08-31
Publication date: 2018-03-06

Abstract

The present invention includes clock oscillator [1], laser distance detector [2], photocon [3], imaging sensor [4], digital signal processing unit DSP [5], gps coordinate converting unit [6], standard output module [7].Each component cooperates, and completes distance measurement, IMAQ, displacement processing, Coordinate Conversion, the work of coordinate output, and most backward map application software provides the gps coordinate value of standardization, and the precisely GPS residing for the display land row vehicles on map.The present invention need not receive satellite/microwave signal, can be applied to basement, tunnel, culvert, the plane positioning in building room etc. in environment, be suitable for almost the global coordinates positioning of all land row vehicles.

Description

A kind of global positioning system and its implementation

Technical field

The present invention relates to a kind of global-positioning technology for departing from aeronautical satellite and realizing the land row vehicles.

Background technology

As science and technology is gradually deep into daily life, the global location demand of the vehicles is more and more stronger.Mesh The conventional location technology of the preceding vehicles is mainly that aeronautical satellite positions, such as GPS（O＆M is developed by the U.S.）, GLONASS（By Russia's exploitation O＆M）With Beidou navigation（O＆M is developed by China）Etc..The location technology of this aeronautical satellite is easily met with Signal is bad（Such as basement, tunnel, in building room and rainy weather）And lead to not the phenomenon of positioning.

The content of the invention

Compared to Satellite Navigation Technique, the system need not receive satellite-signal, can be applied to basement, tunnel, culvert, building Waited in space room in environment, be suitable for almost the global coordinates positioning of all land row vehicles.

The composition of the present invention includes：Clock oscillator [1], laser distance detector [2], photocon [3], image sensing Device [4], digital signal processing unit DSP [5], gps coordinate converting unit [6], standard output module [7].Each component is mutually matched somebody with somebody Close, complete distance measurement, IMAQ, displacement processing, Coordinate Conversion, the work of coordinate output, most backward map application software The gps coordinate value of standardization, and the precisely GPS residing for the display land row vehicles on map are provided.

Clock oscillator [1] connection laser distance detector [2], imaging sensor [4], digital signal processing unit DSP [5], gps coordinate converting unit [6], standard output module [7], identical work clock is provided for them, to ensure that distance is visited While survey, collection image union processing, the coordinate data for handling completion exports in time, it is ensured that synchronous.

Photocon [3] coordinates with imaging sensor [4], completes IMAQ work.LED in photocon [3] is mended Light lamp [A1], emits beam, and penetrates hexagon baffle plate [A2], projects hexagonal area [s1], then diffusing reflection on land To lens group [A2], it is refracted in imaging sensor [4] and is shot into image [p] through lens.Synchronization, laser distance detector [2] send detection light to hexagonal area [s1] center and receive return light, hexagonal area [s1] height is obtained with this [h]。

Imaging sensor [4], using CMOS or CCD.During work, hexagonal area is rapidly shot with high-frequency [s1], send digital signal processing unit DSP [3] to.

Digital signal processing unit DSP [5] receives imaging sensor [4] according to the work clock of clock oscillator [1] The height [h] of image [p] and laser distance detector [2], is compared computing.

Clock [t1] and work clock [t2] at work, digital signal processing unit DSP [5] obtain laser distance spy respectively Height value [h1] and [h2] that survey device [2] passes over and image [p1] and [p2] that imaging sensor [4] passes over.Number Word signal processing unit DSP [5] will be in the image of height value [h2] on the basis of the image [p1] in height value [h1] [p2] deformation process then carries out shift operation to image [p1] and [P2], draws this clock cycle into virtual image [P2] Interior offset variable（X1, y1）, it is delivered in gps coordinate converting unit [6].

Gps coordinate converting unit [6], which possesses, to be set initialized location, calculates new gps coordinate and GPS calibration function.

Example is connected, gps coordinate converting unit [6] receives offset variable（X, y）Afterwards, it is converted into corresponding longitude and latitude Spend variable quantity（X,Y）, plus and minus calculation is done to the longitude and latitude of eve, obtains newest latitude and longitude value [g].Latitude and longitude value now Particular location can be presented on global map [M] in [g], realize locating effect.

Standard output module [7] can be used for latitude and longitude value [g] being output in standard api interface, with various application software Docking.

Claims

1. the composition of the present invention includes：Clock oscillator [1], laser distance detector [2], photocon [3], imaging sensor [4], digital signal processing unit DSP [5], gps coordinate converting unit [6], standard output module [7].

2. clock oscillator [1] at the same for laser distance detector [2], imaging sensor [4], digital signal processing unit DSP [5], gps coordinate converting unit [6], standard output module [7] provide unified clock.

3. laser distance detector [2] detects height value, digital signal processing unit DSP [5] is passed to.

4. the height value that digital signal processing unit DSP [5] transmits according to laser distance detector [2] does change deformation to image Change.

5. photocon [3] contains polygon light barrier, the light barrier especially using hexagon as Typical Representative.

6. gps coordinate converting unit [6] is used to offset variable (x, y) being converted into corresponding GPS longitude and latitude variable quantities（X, Y）.

7. standard output module [7] provides the gps coordinate value output of standardization.