阅读说明：本技术 一种定日镜立柱中心点定位装置及定位方法 (Heliostat upright column center point positioning device and positioning method ) 是由 王建熊 周慧 徐能 严兴波 王玄骅 刘盛豪 于 2021-09-03 设计创作，主要内容包括：本发明公开了一种定日镜立柱中心点定位装置及定位方法,通过由支撑部、定位主体等部件组成该定位装置,支撑部用于固定定位主体相对立柱的位置；坐标部、定位部、角度测量部、水平测量部均设于定位主体上,而角度测量部包括角度测量件、辅助支脚、第一测量支脚和第二测量支脚,分别用于检测地理坐标信息、水平偏角信息、张角信息和水平度,并由坐标部对上述信息进行存储和处理。使用时通过支撑部确定定位主体的位置,由水平测量部确定定位主体的水平度,将各个支脚打开并贴合至定日镜立柱的外圆面上即可通过测得上述信息,结合各个支脚的长度即可得到定日镜立柱中心点的位置坐标,操作简单,解决了现有定日镜立柱中心点位置坐标测绘困难的问题。(The invention discloses a heliostat upright post center point positioning device and a positioning method, wherein the positioning device is composed of a supporting part, a positioning main body and other components, and the supporting part is used for fixing the position of the positioning main body relative to an upright post; coordinate portion, location portion, angle measurement portion, level measurement portion all locate on the location main part, and angle measurement portion includes angle measurement spare, supplementary stabilizer blade, first measurement stabilizer blade and second measurement stabilizer blade, is used for detecting geographical coordinate information, horizontal declination information, field angle information and levelness respectively to store and handle above-mentioned information by coordinate portion. The position of fixing a position the main part is confirmed through the supporting part during the use, confirm the levelness of fixing a position the main part by the level measurement portion, open and laminate each stabilizer blade to the outer disc of heliostat stand on can be through surveying above-mentioned information, combine the length of each stabilizer blade can obtain the position coordinate of heliostat stand central point, easy operation has solved the problem of current heliostat stand central point position coordinate survey and drawing difficulty.)

1. A heliostat upright post central point positioning device is characterized by comprising a supporting part, a positioning main body, a coordinate part, a positioning part, an angle measuring part and a horizontal measuring part;

the positioning main body is provided with the coordinate part, the positioning part, the angle measuring part and the horizontal measuring part, and the bottom of the positioning main body is detachably connected with the supporting part;

the coordinate part is used for measuring the geographic coordinate information of the positioning main body and is in signal connection with the positioning part and the angle measuring part;

the positioning part corresponds to the angle measuring part and is used for measuring horizontal deflection angle information of the angle measuring part relative to geographical true north;

the angle measuring part comprises an angle measuring piece, an auxiliary supporting leg, a first measuring supporting leg and a second measuring supporting leg; the angle measuring piece is arranged on the positioning main body; the auxiliary supporting legs are arranged on the angle measuring piece and used for measuring the closest distance from the angle measuring piece to the heliostat upright column to be measured; the first measuring support leg and the second measuring support leg are rotatably connected to the angle measuring part and are respectively positioned on two sides of the auxiliary support leg, and the output ends of the first measuring support leg and the second measuring support leg are respectively used for contacting with the outer circular surface of the heliostat upright column to be measured; the angle measuring part is used for measuring opening angle information formed by the first measuring support leg and the second measuring support leg;

the horizontal measuring part is used for measuring the levelness of the positioning main body.

2. The heliostat column center point positioning device of claim 1 wherein the positioning portion is an electronic compass.

3. The heliostat column center point positioning device of claim 1 wherein the angular measurement component is an angle ruler, the angle ruler is rotationally connected with the first measurement leg and the second measurement leg through a synchronizing gear for controlling the first measurement leg and the second measurement leg to open and close synchronously.

4. The heliostat column center point positioning device of claim 1 wherein the leveling section is a bubble level or an electronic level.

5. The heliostat mast center point location device of claim 1 wherein the coordinate portion comprises a global positioning system measurement device, a data storage core and a data computation core; the global positioning system measuring device is used for measuring the geographic coordinate information; the data storage core is in signal connection with the global positioning system measuring device, the positioning part, the angle measuring part and the data calculation core respectively and is used for storing the geographic coordinate information, the horizontal deflection angle information and the field angle information; and the data calculation core is used for reading the geographic coordinate information, the horizontal deflection angle information and the field angle information and calculating the geographic coordinate of the central point of the stand column of the heliostat to be measured.

6. The heliostat column center point positioning device of claim 1 wherein the support is a unipod or tripod in threaded or quick release connection with the positioning body.

7. A heliostat column center point positioning method is applied to the heliostat column center point positioning device according to any one of claims 1 to 6, and comprises the following specific steps:

s1: arranging the supporting part of the heliostat upright post center point positioning device beside an upright post of a heliostat to be measured, enabling the positioning main body to be positioned at the fixed mark height of the upright post of the heliostat to be measured, and controlling the auxiliary supporting leg, the first measuring supporting leg and the second measuring supporting leg to be attached to the outer wall surface of the upright post of the heliostat to be measured;

s2: the levelness of the positioning main body is finely adjusted by using a horizontal measuring part, and the auxiliary supporting legs, the first measuring supporting legs and the second measuring supporting legs are kept to be attached to the outer wall surface of the heliostat upright column to be measured;

s3: respectively obtaining the geographic coordinate information, the horizontal deflection angle information and the field angle information through the coordinate part, the positioning part and the angle measuring part, and obtaining length information of the auxiliary supporting leg, the first measuring supporting leg and the second measuring supporting leg;

s4: and storing the information in the step S3 through the coordinate part and calculating to obtain the coordinates of the central point of the heliostat upright column to be measured.

8. The heliostat pillar center point positioning method of claim 7, wherein in step S3, the intersection point of the auxiliary leg, the first measuring leg and the second measuring leg is a, the vertex of the auxiliary leg is L, the vertex of the first measuring leg is M, and the vertex of the second measuring leg is N;

the height of the fixed mark is h, and the geographic coordinate information is the coordinate (x) of the intersection point A_A，y_A，z_A) (ii) a The horizontal deflection angle information is < alpha; the flare angle information is < beta >; the length information of the auxiliary supporting leg is a line segment AL, wherein AL is l; the length information of the first measuring support leg is a line segment AM, and the AM is equal to m; the length information of the second measuring support leg is a line segment AN, and AN is equal to n;

the coordinate of the L point on the horizontal plane is (x)_A–l·sinα，y_A-l · cos α); the coordinate of the M point on the horizontal plane is [ x ]_A–m·sin(α+β/2)，y_A–m·cos(α+β/2)](ii) a The coordinate of the N point on the horizontal plane is [ x ]_A+n·sin(β/2–α)，y_A–n·cos(β/2–α)]The coordinate general formula of N point obtained by finishing is [ x ]_A-n·sin(α-β/2)，y_A–n·cos(α-β/2)]。

9. The heliostat pillar center point positioning method of claim 8, wherein in step S4, according to known conditions, the center vertical coordinate z of the heliostat pillar to be measured on the same horizontal plane as the positioning body_O＝z_AThe central point of the heliostat stand column to be measured is O, the plane coordinate of the point O is (x, y), the distance from the point on the circle to the circle center is equal everywhere, the distance is radius R, and the coordinate of the simultaneous point M, L, N on the horizontal plane is as follows:

(x_A–l·sinα-x)²+(y_A–l·cosα-y)²＝[x_A–m·sin(α+β/2)-x]²+[y_A–m·cos(α+β/2)-y]²＝[x_A–n·sin(α-β/2)-x]²+[y_A–n·cos(α-β/2)-y]²＝R²

two-dimensional quadratic equation with simultaneous circles above, using a known parameter x_A、y_AThe center of the circle of expression of < alpha >, < beta >, l, m and n is the coordinate [ x ] on the horizontal plane_O＝x＝f(x_A,y_A,α,β,l,m,n)，y_O＝y＝g(x_A,y_A,α,β,l,m,n)](ii) a Combining the coordinate z of the center of a circle of the heliostat column to be measured in the vertical direction away from the height h of the column foundation₀＝z_AObtaining the coordinate of the central point O of the heliostat column to be measured as (x)_O，y_O，z_O)。

Technical Field

The invention belongs to the technical field of solar power generation, and particularly relates to a heliostat upright column center point positioning device and a positioning method.

Background

In the construction and implementation process of a large-scale tower type photo-thermal power station, tens of thousands of heliostats are generally required to be configured for a mirror field, and in order to achieve the purpose that the heliostats in the tower type photo-thermal power station focus accurately and condense light to a heat absorber on a tower, the operation strategy of each heliostat needs to be customized independently according to the geographical position coordinates of the central point of the heliostat. In engineering practice, since structural parameters of the heliostat are known, generally only the coordinate of the central point of the heliostat column needs to be measured, and then the position coordinate of the central point of the heliostat can be obtained through internal calculation of heliostat field control software. Therefore, the positioning work of the central point of the heliostat upright column is very important for the normal operation of the tower type photo-thermal power station. However, since the column height of a medium-and-large-sized heliostat is generally high, an attempt to place a positioning device such as an RTK on the top of the heliostat column or the upper part of a mirror generally requires an ascending operation, which is dangerous. The traditional method for carrying out multiple times of mapping or marking point mapping on the ground by using the total station positioning equipment often has the problems of inconvenient operation, complicated steps, secondary calculation and the like. In consideration of the relatively high design height and the huge configuration quantity of heliostats in a heliostat field, the positioning operation of the heliostats often has the defects of high operation risk, time and labor consumption, low efficiency and the like, a huge amount of work is added to the construction of the heliostat field, and the construction and debugging period of the tower type photothermal power station is greatly prolonged.

Disclosure of Invention

The invention aims to provide a heliostat upright post center point positioning device and a positioning method, and aims to solve the problem that coordinates of the center point of an existing heliostat upright post are difficult to map.

In order to solve the problems, the technical scheme of the invention is as follows:

the invention relates to a heliostat upright post central point positioning device which comprises a supporting part, a positioning main body, a coordinate part, a positioning part, an angle measuring part and a horizontal measuring part, wherein the supporting part is arranged on the supporting part;

the positioning main body is provided with the coordinate part, the positioning part, the angle measuring part and the horizontal measuring part, and the bottom of the positioning main body is detachably connected with the supporting part;

the coordinate part is used for measuring the geographic coordinate information of the positioning main body and is in signal connection with the positioning part and the angle measuring part;

the positioning part corresponds to the angle measuring part and is used for measuring horizontal deflection angle information of the angle measuring part relative to geographical true north;

the angle measuring part comprises an angle measuring piece, an auxiliary supporting leg, a first measuring supporting leg and a second measuring supporting leg; the angle measuring piece is arranged on the positioning main body; the auxiliary supporting legs are arranged on the angle measuring piece and used for measuring the closest distance from the angle measuring piece to the heliostat upright column to be measured; the first measuring support leg and the second measuring support leg are rotatably connected to the angle measuring part and are respectively positioned on two sides of the auxiliary support leg, and the output ends of the first measuring support leg and the second measuring support leg are respectively used for contacting with the outer circular surface of the heliostat upright column to be measured; the angle measuring part is used for measuring opening angle information formed by the first measuring support leg and the second measuring support leg;

the horizontal measuring part is used for measuring the levelness of the positioning main body.

According to the heliostat upright post center point positioning device, the positioning part is an electronic compass.

According to the heliostat upright post center point positioning device, the angle measuring piece is an angle ruler, and the angle ruler is in rotating connection with the first measuring supporting leg and the second measuring supporting leg through the synchronous gears and is used for controlling the first measuring supporting leg and the second measuring supporting leg to be synchronously opened and closed.

According to the heliostat upright post center point positioning device, the horizontal measuring part is a bubble level meter or an electronic level meter.

According to the heliostat upright post center point positioning device, the coordinate part comprises a global positioning system measuring device, a data storage core and a data calculation core; the global positioning system measuring device is used for measuring the geographic coordinate information; the data storage core is in signal connection with the global positioning system measuring device, the positioning part, the angle measuring part and the data calculation core respectively and is used for storing the geographic coordinate information, the horizontal deflection angle information and the field angle information; and the data calculation core is used for reading the geographic coordinate information, the horizontal deflection angle information and the field angle information and calculating the geographic coordinate of the central point of the stand column of the heliostat to be measured.

According to the heliostat column center point positioning device, the supporting part is a unipod or a tripod and is in threaded connection or quick-release connection with the positioning main body.

The invention discloses a heliostat upright post center point positioning method, which is applied to any one of the heliostat upright post center point positioning devices and specifically comprises the following steps:

s1: arranging the supporting part of the heliostat upright post center point positioning device beside an upright post of a heliostat to be measured, enabling the positioning main body to be positioned at the fixed mark height of the upright post of the heliostat to be measured, and controlling the auxiliary supporting leg, the first measuring supporting leg and the second measuring supporting leg to be attached to the outer wall surface of the upright post of the heliostat to be measured;

s2: the levelness of the positioning main body is finely adjusted by using a horizontal measuring part, and the auxiliary supporting legs, the first measuring supporting legs and the second measuring supporting legs are kept to be attached to the outer wall surface of the heliostat upright column to be measured;

s3: respectively obtaining the geographic coordinate information, the horizontal deflection angle information and the field angle information through the coordinate part, the positioning part and the angle measuring part, and obtaining length information of the auxiliary supporting leg, the first measuring supporting leg and the second measuring supporting leg;

s4: and storing the information in the step S3 through the coordinate part and calculating to obtain the coordinates of the central point of the heliostat upright column to be measured.

In step S3, an intersection point of the auxiliary supporting leg, the first measuring supporting leg and the second measuring supporting leg is a, a vertex of the auxiliary supporting leg is L, a vertex of the first measuring supporting leg is M, and a vertex of the second measuring supporting leg is N;

the height of the fixed mark is h, and the geographic coordinate information is the coordinate (x) of the intersection point A_A，y_A，z_A) (ii) a The horizontal deflection angle information is < alpha; the flare angle information is < beta >; the length information of the auxiliary supporting leg is a line segment AL, wherein AL is l; the length information of the first measuring support leg is a line segment AM, and the AM is equal to m; the length information of the second measuring support leg is a line segment AN, and AN is equal to n;

the coordinate of the L point on the horizontal plane is (x)_A–l·sinα，y_A-l · cos α); the coordinate of the M point on the horizontal plane is [ x ]_A–m·sin(α+β/2)，y_A–m·cos(α+β/2)](ii) a The coordinate of the N point on the horizontal plane is [ x ]_A+n·sin(β/2–α)，y_A–n·cos(β/2–α)]The coordinate general formula of N point obtained by finishing is [ x ]_A-n·sin(α-β/2)，y_A–n·cos(α-β/2)]。

In step S4, according to known conditions, the method for positioning the center point of the heliostat column includes positioning the center vertical coordinate z of the heliostat column to be measured on the same horizontal plane as the positioning main body_O＝z_AThe central point of the heliostat stand column to be measured is O, the plane coordinate of the point O is (x, y), the distance from the point on the circle to the circle center is equal everywhere, the distance is radius R, and the coordinate of the simultaneous point M, L, N on the horizontal plane is as follows:

(x_A–l·sinα-x)²+(y_A–l·cosα-y)²＝[x_A–m·sin(α+β/2)-x]²+[y_A–m·cos(α+β/2)-y]²＝[x_A–n·sin(α-β/2)-x]²+[y_A–n·cos(α-β/2)-y]²＝R²

two-dimensional quadratic equation with simultaneous circles above, using a known parameter x_A、y_AThe center of the circle of expression of < alpha >, < beta >, l, m and n is the coordinate [ x ] on the horizontal plane_O＝x＝f(x_A,y_A,α,β,l,m,n)，y_O＝y＝g(x_A,y_A,α,β,l,m,n)](ii) a Combining the coordinate z of the center of a circle of the heliostat column to be measured in the vertical direction away from the height h of the column foundation₀＝z_AObtaining the coordinate of the central point O of the heliostat column to be measured as (x)_O，y_O，z_O)。

Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects:

in one embodiment of the invention, the positioning device is composed of a supporting part, a positioning main body and other components, wherein the supporting part is used for fixing the position of the positioning main body relative to the upright post; coordinate portion, location portion, angle measurement portion, level measurement portion all locate on the location main part, and angle measurement portion includes angle measurement spare, supplementary stabilizer blade, first measurement stabilizer blade and second measurement stabilizer blade, is used for detecting geographical coordinate information, horizontal declination information, field angle information and levelness respectively to store and handle above-mentioned information by coordinate portion. The position of fixing a position the main part is confirmed through the supporting part during the use to confirm the levelness of fixing a position the main part by the level measurement portion, open and laminate each stabilizer blade to can be through surveying above-mentioned information on the outer disc of heliostat stand, combine the length of each stabilizer blade can obtain the position coordinate of heliostat stand central point, easy operation has solved the problem of current heliostat stand central point position coordinate survey and drawing difficulty.

Drawings

FIG. 1 is a front view of a heliostat mast center point positioning apparatus of the invention;

FIG. 2 is a left side view of a heliostat mast center point positioning device of the invention;

FIG. 3 is a top view of the closed state of two measurement legs of the heliostat column center positioning device of the invention;

FIG. 4 is a top view of the heliostat column center positioning apparatus of the present invention showing the open state of two measurement legs;

FIG. 5 is a schematic view of an ideal embodiment of the heliostat mast center point positioning device electronic compass pointing to geographical true north of the present invention;

fig. 6 is a schematic diagram of a general embodiment of the electronic compass pointing to any arbitrary orientation of the heliostat mast center point positioning device of the invention.

Description of reference numerals: 1: a positioning part; 2: a level measurement section; 3: a positioning body; 4: an angle measuring member; 5: an auxiliary leg; 6: a first measuring foot; 7: a second measuring foot; 8: a heliostat upright column to be tested; 9: measuring a foot opening; 10: a threaded connection; 11: a support portion.

Detailed Description

The following describes a heliostat pillar center point positioning device and a positioning method in detail with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims.

Example one

Referring to fig. 1 to 4, in one embodiment, a heliostat pillar center point positioning device includes a support portion 11, a positioning main body 3, a coordinate portion, a positioning portion 1, an angle measuring portion, and a horizontal measuring portion 2.

The positioning main body 3 is provided with a coordinate part, a positioning part 1, an angle measuring part and a horizontal measuring part 2, and the bottom is detachably connected with a supporting part 11.

Wherein, the level measurement part 2 is used for measuring the levelness of the positioning main body 3, so as to ensure that the positioning main body 3 is horizontal when measuring, and avoid causing measurement errors due to inclination. The coordinate part is used for measuring the geographical coordinate information of the positioning main body 3 and is in signal connection with the positioning part 1 and the angle measuring part. The positioning part 1 corresponds to the angle measuring part and is used for measuring horizontal deflection angle information of the angle measuring part relative to geographical true north, but in other embodiments, the horizontal deflection angle may be relative to other geographical directions, and is not limited specifically herein.

The angle measuring part then comprises an angle measuring piece 4, an auxiliary foot 5, a first measuring foot 6 and a second measuring foot 7. The angle measuring part 4 is provided on the positioning body 3. The auxiliary supporting feet 5 are arranged on the angle measuring piece 4 and used for measuring the shortest distance from the angle measuring piece 4 to the heliostat upright column 8 to be measured. The first measuring support leg 6 and the second measuring support leg 7 are rotatably connected to the angle measuring part 4 and are respectively located on two sides of the auxiliary support leg 5, and the output ends of the first measuring support leg and the second measuring support leg are respectively used for contacting with the outer circular surface of the heliostat upright column 8 to be measured. The angle measuring device 4 is used to measure the opening angle information formed by the first measuring foot 6 and the second measuring foot 7.

The positioning device is composed of a support part 11, a positioning main body 3 and other components, wherein the support part 11 is used for fixing the position of the positioning main body 3 relative to the upright; coordinate portion, location portion 1, angle measurement portion, level measurement portion 2 all locate on location main part 3, and angle measurement portion includes angle measurement 4, supplementary stabilizer blade 5, first measurement stabilizer blade 6 and second measurement stabilizer blade 7, is used for detecting geographical coordinate information, horizontal declination information, field angle information and levelness respectively to store and handle above-mentioned information by coordinate portion. Confirm the position of location main part 3 through supporting part 11 during the use to confirm the levelness of location main part 3 by levelling portion 2, open and laminate each stabilizer blade to the outer disc of heliostat stand on can be through surveying above-mentioned information, combine the length of each stabilizer blade can obtain the position coordinate of heliostat stand central point, easy operation has solved the problem of current heliostat stand central point position coordinate survey and drawing difficulty.

The following further describes a specific structure of the heliostat pillar center point positioning device of this embodiment:

in this embodiment, the positioning unit 1 may be an electronic compass for detecting a horizontal declination angle with respect to the true north of the geography.

The angle measuring piece can be an angle ruler which is connected with the first measuring support leg 6 and the second measuring support leg 7 through synchronous gear rotation and used for controlling the first measuring support leg 6 and the second measuring support leg 7 to be opened and closed synchronously. Preferably, the length of the first measuring foot 6 and the second measuring foot 7 can be set to be the same, and the simultaneous opening and closing of the two can make the protruding ends of the two feet symmetrical with respect to the auxiliary foot 5 for the subsequent calculation. Preferably, the length of the two measuring feet 6, 7 and the auxiliary foot 5 can be adjusted telescopically, so as to be applied to various measuring requirements in different occasions.

The leveling section 2 is a high-precision bubble level or an electronic level to ensure the levelness of the positioning body 3 at the time of measurement.

In this embodiment, the coordinate unit may specifically include a global positioning system measuring device (GPS, beidou positioning navigation system, etc.), a data storage core, and a data calculation core. The global positioning system measuring device is used for measuring geographic coordinate information. The data storage core is respectively in signal connection with the global positioning system measuring device, the positioning part 1, the angle measuring part and the data calculation core and is used for storing geographic coordinate information, horizontal deflection angle information and field angle information. And the data calculation core is used for reading the geographic coordinate information, the horizontal deflection angle information and the field angle information and calculating the geographic coordinate of the central point of the upright column 8 of the heliostat to be measured.

In the present embodiment, the support 11 may be a unipod or a tripod. In particular, a threaded connection 10 can be provided at the bottom of the positioning body 3, so that a threaded connection is achieved. The threaded connection mode is convenient for disassembly and assembly, and the threaded connection mode can be disassembled when not in use so as to facilitate transportation; when the unipod is selected, the unipod can be inserted into the ground to ensure the stability of the positioning main body 3, and the tripod can be directly placed on the bottom surface. Preferably, other quick-release connecting and fixing methods can also be applied to the present embodiment, and are not limited herein.

In this embodiment, the measurement of the coordinates of the center of a circle of a circular object of different sizes can be accommodated by changing the lengths of the first measuring foot 6, the second measuring foot 7 and the auxiliary foot 5.

Example two

Referring to fig. 5 and 6, a heliostat pillar center point positioning method is applied to the heliostat pillar center point positioning device in the first embodiment, and includes the following specific steps:

s1: the positioning main body 3 is arranged in the effective measuring distance of the heliostat column 8 to be measured through a unipod or a tripod as far as possible, so that the positioning main body 3 is positioned at the fixed marking height of the heliostat column 8 to be measured; the first measuring support leg 6 and the second measuring support leg 7 are synchronously opened at a proper angle along the opening 9 of the measuring support leg, and the auxiliary support leg 5, the first measuring support leg 6 and the second measuring support leg 7 are controlled to be attached to the outer wall surface of the heliostat upright column 8 to be measured.

S2: the levelness of the positioning main body 3 is finely adjusted by the horizontal measuring part 2, so that the positioning main body 3 is in an optimal horizontal to-be-measured state, and the auxiliary support leg 5, the first measuring support leg 6 and the second measuring support leg 7 are kept attached to the outer wall surface of the heliostat upright column 8 to be measured.

S3: the handset is used for activating the global positioning system measuring device, respectively measuring the geographic coordinate information, measuring the horizontal deflection angle information of the electronic compass relative to the true north of the geography, measuring the field angle information of two measuring support legs, and obtaining the length information of the auxiliary support leg 5, the first measuring support leg 6 and the second measuring support leg 7.

S4: and (4) storing the information in the step (S3) through a coordinate part and calculating to obtain the coordinates of the central point of the heliostat upright column 8 to be measured.

The basic mathematical derivation process for calculating the coordinates of the center point of the heliostat column is as follows:

the intersection point of the auxiliary supporting leg 5, the first measuring supporting leg 6 and the second measuring supporting leg 7 is A, the vertex of the auxiliary supporting leg 5 is L, the vertex of the first measuring supporting leg 6 is M, and the vertex of the second measuring supporting leg 7 is N.

The positioning main body 3 is placed at a certain fixed mark height h on the basis of the heliostat column 8 to be measured and is adjusted to be horizontal, and the outer wall circle O of the heliostat column 8 to be measured is determined by using any three points (the top point M of the first measuring supporting leg 6, the top point L of the second measuring supporting leg 7 and the top point N of the auxiliary supporting leg 5) which are not on the same straight line on the horizontal plane at the position.

The GPS measuring device measures the geographic coordinate information as the coordinate (x) of the intersection point A_A，y_A，z_A) The horizontal deflection angle information measured by the electronic compass is ≦ α (i.e. the horizontal angle of vector OA or LA in the clockwise direction relative to the angle of 0 °), and the angle of the tension angle information ≦ MAN measured by the angle gauge is set to ≦ β. The length information of the auxiliary leg 5 is a line segment AL, AL ═ l. The length information of the first measuring foot 6 is the line segment AM, AM being equal to m. The length information of the second measuring foot 7 is a line segment AN, AN being equal to n. Set east in the x direction (up the paper) in the geographic coordinate systemRight) is positive, and north in the y-direction (upward on the paper) is positive.

According to the above known conditions, the coordinate of the point L on the horizontal plane is (x)_A–l·sinα，y_A-l · cos α). The coordinate of the M point on the horizontal plane is [ x ]_A–m·sin(α+β/2)，y_A–m·cos(α+β/2)]. The coordinate of the N point on the horizontal plane is [ x ]_A+n·sin(β/2–α)，y_A–n·cos(β/2–α)]The coordinate general formula of N point obtained by finishing is [ x ]_A-n·sin(α-β/2)，y_A–n·cos(α-β/2)]。

According to known conditions, the center of a circle of the heliostat column 8 to be measured, which is positioned on the same horizontal plane with the positioning main body 3, is vertical to the coordinate z_O＝z_AThe central point of the heliostat column 8 to be measured is O, the plane coordinate of the point O is (x, y), the distance from the point on the circle to the center of the circle is equal everywhere, the point is radius R, and the coordinate of the simultaneous point M, L, N on the horizontal plane is as follows:

(x_A–l·sinα-x)²+(y_A–l·cosα-y)²＝[x_A–m·sin(α+β/2)-x]²+[y_A–m·cos(α+β/2)-y]²＝[x_A–n·sin(α-β/2)-x]²+[y_A–n·cos(α-β/2)-y]²＝R²

two-dimensional quadratic equation with simultaneous circles above, using a known parameter x_A、y_AThe center of the circle of expression of < alpha >, < beta >, l, m and n is the coordinate [ x ] on the horizontal plane_O＝x＝f(x_A,y_A,α,β,l,m,n)，y_O＝y＝g(x_A,y_A,α,β,l,m,n)]. Combining the coordinate z of the center of a circle of the heliostat column 8 to be measured in the vertical direction away from the height h of the column foundation₀＝z_AObtaining the coordinate of the central point O of the heliostat column 8 to be measured as (x)_O，y_O，z_O)。

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, it is still within the scope of the present invention if they fall within the scope of the claims of the present invention and their equivalents.