CN201210047Y - Device combining GPS positioning and three-dimensional laser scanner measurement - Google Patents

Abstract

The utility model relates to a device used for communicating GPS positioning and three-dimension laser scanner measurement, which is composed of a base, a target device and a GPS receiving mechanism arranged on the target device. The target device comprises a supporting shaft fixed on the base; the supporting shaft is provided with a rotating disc which is matched with a bearing; the outer diameter of the rotating disc is symmetrically provided with two jack sockets which are internally and respectively provided with a target fixed by a locked screw; and the upper part of the supporting shaft is provided with a connecting rod which is provided with the GPS receiver. The target device is used for introducing a WGS-84 coordinate obtained by static positioning of the GPS receiver to the three-dimension laser scanner measurement as the control of coordinate transformation; the obtained transformation equation can be used for realizing the monitoring of three-dimension absolute deflection of the three-dimension laser scanner and monitoring of high-rise buildings and bridges; and the geometrical center of the device is used as a control point by leveling the instrument without needing a special control point. The device has simple, compact and reasonable structure, convenient operation and carry and wide practicability.

Description

The device of a kind of associating GPS location and three-dimensional laser scanner measurement

Technical field

The utility model relates to the device of a kind of associating GPS location and three-dimensional laser scanner measurement, is particularly useful for determining the three-dimensional absolute deformation measurement of testee.

Background technology

In the deformation monitoring of aspects such as skyscraper, bridge, usually use three-dimensional laser scanner measurement to obtain the 3 D deformation information of object at present.But, by the positional information that three-dimensional laser scanner obtains, be a kind of relative position information under coordinate system of machine (a kind of relative coordinate system), therefore the relative information translation that three-dimensional laser scanner measurement need be obtained is to unified coordinate system; Under the unsettled situation of ground environment, the reference mark can change with the change of landing ground, and for example in the deformation monitoring in mining area, the reference mark can be subjected to displacement because of underground adopting, can cause whole measurement result generation deviation like this, therefore also need quantitatively to obtain the deflection at reference mark.At present, also be not used in solution to the problems described above and device thereof.

The utility model content

Technical matters: the purpose of this utility model provides a kind of simple in structure, and is easy to use, the associating GPS location that measuring accuracy is high and the device of three-dimensional laser scanner measurement.

Technical scheme: the device of associating GPS of the present utility model location and three-dimensional laser scanner measurement, comprise base, be located at the surveyor's beacon device on the base, the surveyor's beacon device is provided with the pipe level, base is provided with circular bubble, described surveyor's beacon device comprises the bolster that is fixed on the base, bolster is provided with the rotating disk that matches with bearing, be arranged with two jack hole seats on the external diameter of rotating disk, respectively be provided with one in two jack hole seats by the fixing surveyor's beacon of lock-screw, the top of bolster is provided with the connecting link that the GPS receiver is installed.

Beneficial effect: the WGS-84 coordinate that adopts the surveyor's beacon device that the GPS static immobilization is obtained is introduced three-dimensional laser scanner measurement, control as coordinate conversion, realize the method for the three-dimensional absolute deformation amount monitoring of three-dimensional laser scanner by the transfer equation of trying to achieve, join and the main device that constitutes by the connecting link of base, surveyor's beacon device and placement GPS receiver, GPS location and three-dimensional laser scanner measurement are connected, be used for the aspects such as deformation monitoring of skyscraper, bridge effectively.By connecting the GPS receiver, determine the WGS-84 coordinate of this device geometric center; Determine the coordinate of device geometric center under relative coordinate system by the surveyor's beacon of this device of three-dimensional laser scanner measurement; WGS-84 coordinate and relative coordinate by this device geometric center calculate the parametric equation of relative coordinate system to the WGS-84 coordinate conversion; The relative coordinate that three-dimensional laser scanner obtains converts coordinate under the WGS-84 coordinate system to by the above-mentioned parameter equation.By the application in many phase observations, the three-dimensional absolute deformation of realization three-dimensional laser scanner is accurately measured.This method need not done special reference mark, with instrument leveling just can handle assembly geometric center as the reference mark, GPS is located and three-dimensional laser scanner measurement effectively combines.According to the phase center of GPS receiver and the geometric condition at surveyor's beacon center, calculate the WGS-84 coordinate of device geometric center, as the each conversion benchmark of measuring of three-dimensional laser scanner, simultaneously, the measurement result in later stage can not be affected because of the change at reference mark.Can be used for engineering survey, academic research, also can be used for the practical teaching training, be industrial and mining enterprises and civilian construction solution engineering problem, its simple in structure, compact and reasonable, operation, easy to carry has practicality widely in the present technique field.

Description of drawings

Fig. 1 is a front view of the present utility model.

Fig. 2 is the A-A cross sectional plan view of Fig. 1

Among the figure: the 1-GPS receiver, the 2-connecting link, the 3-surveyor's beacon, the 4-lock-screw, 5-manages level, 6-sunk screw, 7-bolster, 8-bearing cap, 9-bearing, 10-rotating disk, 11-foot screw, 12-upper bed-plate, 13-lower bottom base, 14-circular bubble.

Embodiment

Below in conjunction with accompanying drawing an embodiment of the present utility model is further described.

The device of the utility model associating GPS location and three-dimensional laser scanner measurement mainly is made of base, surveyor's beacon device and the GPS receiver 1 that is located on the surveyor's beacon device.Base is the three-jaw star structure, form by upper bed-plate 12 and lower bottom base 13, be provided with the flexible foot screw 11 of scalable horizontal level between three pawls of Up/down base, circular bubble 14 is installed on the upper bed-plate 12, circular bubble 14 is inlayed on one jiao that is installed in upper bed-plate 12, is used for the coarse adjustment of surveyor's beacon horizontality; The center of lower bottom base 13 is processed with and is used to install the tripod threaded hole.The surveyor's beacon device is mainly by bolster 7, the rotating disk 10 and the surveyor's beacon 3 that are located on the bolster 7 constitute, be arranged with two jack hole seats on the external diameter of rotating disk 10, respectively be fitted with a surveyor's beacon 3 in two jack hole seats, two surveyor's beacons 3 are fixing by lock-screw 4 respectively, in case fastening position surveyor's beacon 3 loosening and coming off.Surveyor's beacon 3 is the aluminium sheet manufacturing, and the middle part has center pit, is benchmark with the center pit, glues card or be decorated with eye-catching target center sign on two faces of surveyor's beacon 3.The pipe level 5 that helps leveling is housed on the rotating disk 10, and pipe level 5 is screwed after adjustment on the surface of rotating disk 10, is used for the fine setting of surveyor's beacon horizontality.Bolster 7 passes the center pit of upper bed-plate 12, be fastened on the upper bed-plate 12 by screw, bearing 9 is installed on the bolster 7, bearing 9 outer rings and rotating disk 10 connections, the bearing cap 8 usefulness sunk screws 6 on bearing 9 tops are fastened on rotating disk 10 end faces, are provided with the O-ring seal with sealing and damping action in the bearing cap 8.Bolster 7 tops are processed with screw thread, the connecting link 2 that has been threaded of the thread segment by bolster 7 tops processing, and connecting link 2 is the nonmetallic materials manufacturing, GPS receiver 1 is threaded and is installed in connecting link 2 tops.Rotating disk 10, surveyor's beacon 3 are convenient to the direction of scanning that two surveyor's beacons are aimed at three-dimensional laser scanner around bolster 7 rotations, and rotating disk 10 adopts aluminium alloy casting.

The course of work: with associating GPS location and the device of three-dimensional laser scanner measurement be arranged to the (abbreviation of GPS-Global Positioning System on the tripod with bolt, meaning is a GPS), set up three or three above positions simultaneously, leveling; By the rotating disk 10 of rotation surveyor's beacon device, make the direction of scanning of two surveyor's beacons, the 3 aligning three-dimensional laser scanners of surveyor's beacon device; Aim at the target center run-down of two surveyor's beacons 3 earlier with three-dimensional laser scanner, rotate 180 ° in surveyor's beacon device then, to the target center of two surveyor's beacons 3 run-down again, get the average of twice pair of surveyor's beacon, 3 scannings, to eliminate the lateral error of transverse axis, determine the relative coordinate of two surveyor's beacon 3 target centers by three-dimensional laser scanner measurement, get average and calculate the relative coordinate of surveyor's beacon device geometric center, after waiting to be located at GPS receiver 1 static immobilization on the surveyor's beacon device, determine the WGS-84 coordinate and the precision (WGS-84 of surveyor's beacon device geometric center, the coordinate system of international geodetic surveying and the definition of geophysics federation, GPS location coordinate system commonly used), calculate the parametric equation of relative coordinate to the WGS-84 coordinate conversion, with three-dimensional laser scanner testee is obtained relative coordinate, convert coordinate under the WGS-84 coordinate system to by parametric equation C, as the each conversion benchmark of measuring of three-dimensional laser scanner, coordinate is obtained in the actual measurement of surveying object through 2～3 phases, the data that obtain are compared, can determine that the three-dimensional absolute deformation of testee is measured.

Claims (1)

1. the device of associating GPS location and three-dimensional laser scanner measurement, comprise base, be located at the surveyor's beacon device on the base, the surveyor's beacon device is provided with pipe level (5), base is provided with circular bubble (14), it is characterized in that: described surveyor's beacon device comprises the bolster (7) that is fixed on the base, bolster (7) is provided with the rotating disk (10) that matches with bearing (9), be arranged with two jack hole seats on the external diameter of rotating disk (10), respectively be provided with one in two jack hole seats by the fixing surveyor's beacon (3) of lock-screw (4); The top of bolster (7) is provided with the connecting link (2) that GPS receiver (1) is installed.

Images