CN102401644B

CN102401644B - Optical geodesic measurement device

Info

Publication number: CN102401644B
Application number: CN 201010281806
Authority: CN
Inventors: 才长帅; 刘雨蒙; 石海天; 李学良; 高其嘉; 刘建平; 陈京平; 吴文洲; 王晓莉
Original assignee: INSTITUTE OF RADAR AND ELECTRONIC COUNTERMEASURE OF CHINESE PLA AIR FORCE EQUIPM
Current assignee: INSTITUTE OF RADAR AND ELECTRONIC COUNTERMEASURE OF CHINESE PLA AIR FORCE EQUIPM
Priority date: 2010-09-15
Filing date: 2010-09-15
Publication date: 2013-11-06
Anticipated expiration: 2030-09-15
Also published as: CN102401644A

Abstract

The invention relates to an optical geodesic measurement device. The optical geodesic measurement device can provide a horizontal true angle. The optical geodesic measurement device comprises an optical module and an orientation module. The orientation module comprises a host computer module and a calibration module. The orientation module is utilized for horizontal true calibration and provides a true angle for the optical module. The optical module has a physical connection with the host computer module. The optical module has functions same as functions of a well-known total station. The orientation module adopts a real-time differential GPS system and comprises the host computer module and the calibration module. The host computer module is utilized as a real-time differential GPS movement station and is installed on the optical module. The orientation module is utilized as a real-time differential GPS base station. After difference, a horizontal true angle is written in an internal memory. When an optical lens aims at a marker of the orientation module, a direction arrangement button is triggered, and the optical geodesic measurement device can obtain a horizontal true angle of the orientation module relative to the host computer module and utilize the horizontal true angle as a horizontal direction reference angle.

Description

A kind of optical earth measurement equipment

Affiliated technical field

The present invention relates to a kind of optical earth measurement equipment, particularly a kind of level that can provide is very to the optical earth measurement equipment of angle.

Background technology

At present, known optical earth measurement equipment comprises transit and total powerstation, and wherein total powerstation is to load distance-measuring equipment on the transit basis, and its angle measuring principle is identical with transit.No matter being transit or total powerstation, is all to obtain vertically very to angle by the gravity parts, but can not provide level very to angle (level angle in relative geographical north in terrestrial coordinate system).When carrying out geodetic surveying, if the level that obtains target is very to angle, need to be by compass or differential GPS.When using compass, need know local magnetic declination, ability acquisition level is very to angle, and this method precision is low, complicated operation; Use differential GPS need to first measure two points, by the distance of real-time or aftertreatment difference acquisition point-to-point transmission baseline with very to angle (comprising level very to angle), then use existing optical earth measurement equipment (as total powerstation or transit+stadimeter) to measure this two points, the level that calculates is very to angle, this method precision is very high, but operation is more complicated.

Summary of the invention

Can not provide level very to the deficiency of angle in order to overcome existing optical earth measurement equipment, the invention provides a kind of optical earth measurement equipment, this equipment not only has the repertoire of total powerstation, and the level that the target of surveying can be provided is very to angle, simple to operate, angle precision is consistent with the precision that the differential GPS method records.

The technical solution adopted for the present invention to solve the technical problems is:

This measuring equipment is comprised of optical module and orientation module two parts, and orientation module is comprised of host module and calibration module, and orientation module is used for level very to demarcation, for optical module provides very to angle, and described optical module and host module physical connection.Optical module in order to provide target range, target Relative Zero to level angle and relative gravity perpendicular direction angle.Described orientation module adopts the real time differential GPS system, and this module is divided into calibration module and two parts of host module.During use, calibration module is as the base station of real time differential GPS, and host module is as movement station.

Described calibration module comprises: calibration gps antenna and calibration GPS receiver are used for receiving gps signal; Transmitting station is used for the emission differential signal; Boresight antenna shell, boresight antenna outer casing top surface hit exactly mark are set, and are used for optical device and aim at.

Described host module comprises: main frame gps antenna and main frame GPS receiver are used for receiving gps signal; Receive the radio station, be used for receiving the differential signal of calibration module emission; The FPGA difference is resolved plate, is used for the real-time resolving differential data; With the master machine antenna shell.

Described FPGA difference is resolved plate with the distance of line between calibration module and host module and is very delivered to by serial interface cable to angle in the internal memory of optical module and store.

The surface of described optical module is provided with puts to key, puts to key to be used for level that opertaing device reads the optical module internal memory very to angle information, as the present level angle.

The antenna casing of described host module and calibration module is disc.

The invention has the beneficial effects as follows, on the basis of known total powerstation, can directly obtain the level of the target of surveying very to angle, exempted and used existing optical earth measurement equipment acquisition level very to the complicated process of angle.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is the embodiments of the invention front elevations.

Fig. 2 is the embodiments of the invention side views.

Fig. 3 is the embodiments of the invention internal structural maps

1. main frame gps antenna shell, 2. handle, 3. web members in figure, 4. optical lens, 5. display screen, 6. " put to " button, 7. mark, 8. calibrate gps antenna shell, 9. emitting antenna, 10. support bar, 11. main frame gps antennas, the 12.FPGA difference is resolved plate, 13. the reception radio station, 14. serial port data lines, 15. internal memories, 16. transmitting station, 17. calibration gps antennas.

Embodiment

As accompanying drawing 1, Fig. 2 and shown in Figure 3, main frame gps antenna shell 1 is installed on handle 2 by web member 3, not the used time desirable under, optical lens 4 is consistent with general total powerstation with display screen 5, puts " zero setting " button that is similar to general total powerstation to key 6; Mark is a cone-shaped body, is arranged on calibration gps antenna shell 8 end faces centers, and emitting antenna is positioned at calibration gps antenna shell 8 below non-central locations, and support bar 10 is arranged on calibration gps antenna shell 8 centers, bottom surfaces, and the used time can not screw off.

Calibration gps antenna 17 receives gps satellite signal, after treatment the differential GPS signal is transmitted in the air through transmitting station 16 and emitting antenna 9; Main frame gps antenna 11 receives gps satellite signal, receive the differential GPS signal that radio station 13 receives from transmitting station 16, resolving plate 12 through the FPGA difference calculates, obtain baseline information, be that main frame gps antenna 11 phase centers are to the distance of calibration gps antenna 17 phase centers with very to angle, comprise that level is very to angle, and level is very passed through serial port data line 14 write memories 15 to angle, when putting when being triggered to key 6, main frame reads level on internal memory 15 very to angle, is set to the level angle of current optical lens 4.

The use operation steps of optical earth measurement equipment:

At first should make host module and calibration module can receive gps signal, calibration module is placed in optical lens 4 observable as far as possible at a distance, use the crosshair sighting mark thing 7 in optical lens 4, press underlying to key 6, liquid crystal display 5 can show the present level angle, just completed the initialization of equipment this moment, just can begin geodetic surveying work afterwards.

Calibration module and host module are at a distance of far away, very higher to precision.Generally, two module distance R rice are very 0.2 °/R to precision.For example two modules at a distance of 100 meters, are very 0.002 ° to precision.

Claims

1. optical earth measurement equipment, it is characterized in that: this measuring equipment is comprised of optical module and orientation module two parts; Optical module in order to provide target range, target Relative Zero to level angle and relative gravity perpendicular direction angle; Orientation module is used for level very to demarcation, for optical module provides very to angle; Described optical module and host module physical connection;

Described orientation module adopts the real time differential GPS system, and this module is divided into calibration module and two parts of host module; During use, calibration module is as the base station of real time differential GPS, and host module is as movement station;

Described calibration module comprises: calibration gps antenna (17) and calibration GPS receiver, transmitting station (16) and emitting antenna (9) and calibration gps antenna shell (8); Its alignment gps antenna (17) and calibration GPS receiver are used for receiving gps signal, after treatment the differential GPS signal are transmitted in the air through transmitting station (16) and emitting antenna (9); Calibration gps antenna shell (8) end face center arranges mark (7), is used for optical device and aims at;

Described host module comprises: main frame gps antenna (11) and main frame GPS receiver, receive radio station (13), the FPGA difference is resolved plate (12) and main frame gps antenna shell (1); Wherein main frame gps antenna (11) and main frame GPS receiver are used for receiving gps signal; Receive radio station (13) reception from the differential GPS signal of transmitting station (16), resolving plate (12) through the FPGA difference calculates, obtain baseline information, be that main frame gps antenna (11) phase center is to the distance of calibration gps antenna (17) phase center with very to angle, comprise level very to angle, and level is very write optical module internal memory (15) to angle by serial port data line (14); When putting to key (6) when being triggered, main frame reads level on optical module internal memory (15) very to angle, is set to the level angle of current optical lens (4);

The surface of described optical module is provided with puts to key (6), puts to key (6) to be used for level that opertaing device reads the optical module internal memory very to angle information, as the present level angle.

2. optical earth measurement equipment according to claim 1, it is characterized in that: the antenna casing of described host module and calibration module is disc.