CN110630859A

CN110630859A - Intelligent city surveying instrument based on Internet of things

Info

Publication number: CN110630859A
Application number: CN201910979436.2A
Authority: CN
Inventors: 房亚群; 安进; 张丹
Original assignee: Jiangsu Food and Pharmaceutical Science College
Current assignee: Jiangsu Food and Pharmaceutical Science College
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2019-12-31
Anticipated expiration: 2039-10-15
Also published as: CN110630859B

Abstract

The invention relates to the technical field of surveying and mapping, in particular to an intelligent city surveying and mapping instrument based on the Internet of things, which comprises a surveying and mapping instrument support, wherein three groups of bilaterally symmetrical rotating seats are uniformly arranged on the side wall of the surveying and mapping instrument support at intervals, a first rotating shaft is rotatably connected between the left rotating seat and the right rotating seat, an upper supporting column is fixedly connected to the center of the outer wall of the rotating shaft, a lower supporting column is arranged under the upper supporting column, the upper supporting column is connected with the lower supporting column through four groups of uniformly distributed first miniature electro-hydraulic push rods, sliding rails are arranged on the lower parts of the outer walls of one sides of the three groups of lower supporting columns, an electric sliding block is slidably clamped in an inner cavity of each sliding rail, the end part; the urban surveying instrument can effectively overcome the defects that the traditional urban surveying instrument needs to be disassembled and assembled for many times when in use, is time-consuming and labor-consuming and can not meet the requirements of users in the prior art.

Description

Intelligent city surveying instrument based on Internet of things

Technical Field

The invention relates to the technical field of surveying and mapping, in particular to an intelligent city surveying and mapping instrument based on the Internet of things.

Background

Surveying and mapping refers to measuring, collecting and drawing the shape, size, spatial position and attributes of natural geographic elements or surface artificial facilities.

The research of mapping determines and calculates the geometric position, the earth spherical shape and the earth gravitational field of the ground point, measures the natural shape of the earth surface and the geometric distribution of artificial facilities according to the geometric position, the earth spherical shape and the earth gravitational field, and combines certain social information and the geographic distribution of the natural information to compile theoretical and technical subjects of maps with various scales and special maps in the global and local regions, which are also called as the measurement science. The method comprises two main contents of measurement and drawing, and the mapping is widely applied to economic construction and national defense construction. In urban and rural construction planning, utilization of national and local resources, environmental protection and other works, various maps must be measured and mapped for planning and management. In geological exploration, mineral development, water conservancy, traffic and other constructions, control measurement, mine measurement, route measurement and topographic map drawing are required to be carried out for geological survey and various building design and construction. Military maps are needed for marching and battle in military affairs, and accurate geocentric coordinates and earth gravity field data are needed to ensure that remote weapons accurately hit targets.

The main subjects of mapping are the earth and its surface morphology. Branch disciplines such as geodetics, ordinary surveying, photogrammetry, engineering surveying, marine surveying, and mapping are developed during development. Urban survey is measurement work carried out by planning design, construction, operation management and the like of urban construction, and comprises urban control measurement, urban topographic map surveying and mapping, compiling and drawing of various special maps, construction lofting during construction of municipal engineering, deformation observation of important buildings and the like.

Present city mapping equipment generally all is fixed subaerial, unable free movement, make present city mapping equipment when measuring the great region of area, need carry out the dismouting many times, a large amount of human input has not only increased survey and drawing time and survey and drawing cost, still brought very big inconvenience for survey and drawing work, and current surveying and drawing support does not have intelligent regulation's function, can't carry out intelligent regulation according to different surveying staff's height, and need manual fixed after adjusting the distance between each supporting legs, the equilibrium at support top can not be satisfied, thereby make the result error that the surveying instrument detected.

Therefore, need design an intelligent city surveying instrument based on thing networking, can adjust the surveying instrument support fixedly through operating on handheld terminal equipment, and the surveying instrument support is convenient for stabilize and remove, has satisfied the person's of surveying and mapping demand to a great extent, has saved plotting time and survey and drawing cost.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects in the prior art, the invention provides an intelligent city surveying instrument based on the Internet of things, which can effectively overcome the defects that the traditional city surveying instrument in the prior art needs to be disassembled and assembled for many times when in use, is time-consuming and labor-consuming and can not meet the requirements of users.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme:

an intelligent city surveying instrument based on the Internet of things comprises a surveying instrument support, wherein three groups of rotating seats which are arranged in a bilateral symmetry mode are arranged on the side wall of the surveying instrument support at even intervals, a first rotating shaft is rotatably connected between the rotating seats on the left side and the right side, an upper supporting column is fixedly connected to the center of the outer wall of the rotating shaft, a lower supporting column is arranged under the upper supporting column, the upper supporting column is connected with the lower supporting column through four groups of first micro electro-hydraulic push rods which are uniformly distributed, a sliding rail is arranged on the lower portion of the outer wall on one side of the lower supporting column in three groups, an electric sliding block is slidably clamped in the inner cavity of the sliding rail, the end portion of the electric sliding block is rotatably connected with a second rotating shaft through a rotating connecting piece, walking wheels are fixed on the outer wall of the second rotating shaft, sliding grooves are formed in a, the tip of third pivot is fixed with the supporting leg, the bottom central authorities of surveying instrument support are equipped with the spliced pole, be equipped with down the spliced pole under going up the spliced pole, go up and link to each other through the control box between spliced pole and the lower spliced pole, and the bottom of spliced pole is connected with the operation panel down, the front surface central authorities of operation panel run through and are equipped with the USB interface, the even interval through connection of lateral wall of operation panel has three electric telescopic handle of group, and the tip of three electric telescopic handle of group all rotates through the inner wall of rotating connecting piece and three group's last supporting legs and is connected.

Preferably, the top central authorities of surveying instrument support are equipped with the recess, the inner chamber bottom central authorities of recess are equipped with the external screw thread post, the top of external screw thread post is rotated and is connected with a supporting bench, the even interval of lateral wall of supporting bench runs through and is equipped with four groups of reference columns, the top central authorities of supporting bench run through and are equipped with the through-hole, the inner chamber of through-hole extends and has the bottom to be the fixed station of round platform type structure, magnet has been inlayed at the top of fixed station.

Preferably, the inner chamber lower part that extends to the through-hole is run through to the bottom of fixed station, and through first reset spring elastic connection between the bottom of fixed station and the inner chamber bottom of through-hole, the inner chamber left and right sides symmetry of brace table runs through and is equipped with the siphunculus, the end fixing that the reference column is located the brace table inner chamber has the horizontal pole, the horizontal pole runs through in the inner chamber of siphunculus and extends to the inner chamber of through-hole, and the end fixing that the horizontal pole is located the through-hole inner chamber has the arc fixture block, be connected with second reset spring between the lateral wall of arc fixture block and the inner wall of through-hole, second reset spring's.

Preferably, be equipped with the surveying instrument body directly over the fixed station, the bottom central authorities of surveying instrument body are equipped with the internal thread pipe, the internal thread pipe is through the magnet and the magnet actuation mutually that inner chamber top central authorities set up, the internal thread pipe runs through the U type hole and the reference column looks joint that set up through outer wall bottom circumference even interval, and the outer wall threaded connection of the inner wall of internal thread pipe and external screw thread post.

Preferably, the inner chamber of lower support column divide into cavity and lower cavity, the inner chamber bottom central authorities of going up the cavity are equipped with the battery, the slide rail inlays in the inner chamber left side of cavity down, the inner chamber top central authorities of cavity are fixed with the miniature electro-hydraulic push rod of second down, the bottom of the miniature electro-hydraulic push rod of second is connected with horizontal fixed establishment, both ends run through the inner chamber in both sides spout around in respectively around horizontal fixed establishment, and both ends are through rotating connecting piece and both sides around with respectively around horizontal fixed establishment the tip of third pivot is rotated and is connected.

Preferably, the storage battery is respectively and electrically connected with the electric slide block, the first miniature electro-hydraulic push rod and the second miniature electro-hydraulic push rod.

Preferably, a microprocessor is arranged in the control box, the input end of the microprocessor is in network connection with the handheld terminal device through a USB interface or a wireless transmission module, and the wireless transmission module comprises Bluetooth transmission and Zigbee network transmission.

Preferably, the output end of the microprocessor is electrically connected with the electric telescopic rod through the driving unit on one hand, and is wirelessly connected with a wireless receiver arranged in the inner cavity of the lower support column through a wireless transmitter on the other hand.

Preferably, the wireless receiver is electrically connected with the electric slider, the first miniature electro-hydraulic push rod and the second miniature electro-hydraulic push rod through the driving unit.

Preferably, an electricity storage unit is arranged in the control box and electrically connected with the microprocessor.

(III) advantageous effects

Compared with the prior art, the intelligent city surveying instrument based on the Internet of things provided by the invention adopts a mode of combining multiple functions to design a novel intelligent city surveying instrument, and the conditions that the traditional city surveying instrument needs to be disassembled and assembled for many times when in use, is time-consuming and labor-consuming and cannot meet the requirements of users are abandoned, and the intelligent city surveying instrument has the beneficial effects that:

1. the side wall of the surveying instrument bracket is connected with an upper supporting column through a rotating seat and a first rotating shaft, the upper supporting column and the lower supporting column are connected through a first miniature electro-hydraulic push rod, and the distance between the upper supporting column and the lower supporting column can be changed by changing the length of the first miniature electro-hydraulic push rod, so that the surveying instrument bracket is suitable for the heights of different surveying personnel;

2. the three groups of upper supporting columns are connected with the operating panel through the rotating connecting pieces and the electric telescopic rods, the center of the top of the operating panel is connected with the bottom of the surveying instrument bracket through the upper connecting column, the lower connecting column and the control box, so that the electric telescopic rods can drive the upper supporting columns and the lower supporting columns to rotate while stretching, and the placing height of the surveying instrument bracket is adjusted;

3. according to the invention, the outer wall of one side of each lower supporting column is rotatably connected with a second rotating shaft through a sliding rail, an electric sliding block and a rotating connecting piece, the outer wall of each second rotating shaft is fixedly provided with a travelling wheel, the lower parts of the outer walls of the other two symmetrical sides of the three groups of lower supporting columns are respectively fixedly provided with a supporting foot rest through a sliding chute and a third rotating shaft, the center of the top of an inner cavity of a lower cavity in each lower supporting column is fixedly provided with a second miniature electric hydraulic push rod, the bottom of the second miniature electric hydraulic push rod is rotatably connected with the end parts of the third rotating shafts on the front side and the rear side through a transverse fixing mechanism and a rotating connecting piece, when a place needs to be moved, the travelling wheels run after the electric sliding blocks slide down, the second miniature electric hydraulic push rod;

4. a surveying instrument body is arranged right above a fixing table, an internal thread pipe is arranged in the center of the bottom of the surveying instrument body, the internal thread pipe is attracted with a magnet through a magnet arranged in the center of the top of an inner cavity, when the magnet is attracted with the magnet, the fixing table is compressed to the inner cavity of a through hole, so that arc-shaped fixture blocks on the left side and the right side and a second reset spring move towards two sides to drive a cross rod and a positioning column to move oppositely, U-shaped holes which are uniformly arranged at intervals in the circumferential direction at the bottom of the outer wall of the internal thread pipe are clamped with the positioning column, and the inner wall of the internal thread pipe is in threaded connection with the outer wall of an external thread column, so that the surveying;

5. according to the invention, the microprocessor is arranged in the control box, the input end of the microprocessor is in network connection with the handheld terminal device through the USB interface or the wireless transmission module, the output end of the microprocessor is electrically connected with the electric telescopic rod through the driving unit on one hand, and is wirelessly connected with the wireless receiver arranged in the inner cavity of the lower supporting column through the wireless transmitter on the other hand, and the wireless receiver is respectively and electrically connected with the electric sliding block, the first miniature electro-hydraulic push rod and the second miniature electro-hydraulic push rod through the driving unit, so that the control of the parts through the Internet of things is realized, the human input is reduced, and.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial block diagram of the stand of the surveying instrument of the present invention;

FIG. 3 is a cross-sectional view of a support platform of the present invention;

FIG. 4 is a view of the construction of the surveying instrument body of the present invention;

FIG. 5 is a view showing the internal structure of the lower support pillar of the present invention;

in the figure:

1. a surveying instrument support; 2. a rotating seat; 3. a first rotating shaft; 4. an upper support column; 5. an upper connecting column; 6. a control box; 7. a lower connecting column; 8. an operation panel; 9. an electric telescopic rod; 10. a USB interface; 11. a first miniature electro-hydraulic push rod; 12. a lower support pillar; 13. a slide rail; 14. a traveling wheel; 15. a third rotating shaft; 16. a supporting foot rest; 17. a chute; 18. an electric slider; 19. a second rotating shaft; 20. a groove; 21. an externally threaded post; 22. a through hole; 23. a fixed table; 24. a magnet; 25. a support table; 26. a positioning column; 27. pipe passing; 28. a first return spring; 29. a second return spring; 30. a cross bar; 31. an arc-shaped fixture block; 32. a surveying instrument body; 33. an internally threaded tube; 34. a magnet; 35. a U-shaped hole; 36. a storage battery; 37. a second miniature electro-hydraulic push rod; 38. and a transverse fixing mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An intelligent city surveying instrument based on the Internet of things is disclosed, as shown in figures 1-5, comprising a surveying instrument support 1, three groups of bilaterally symmetrical rotating seats 2 are uniformly arranged on the side wall of the surveying instrument support 1 at intervals, a first rotating shaft 3 is rotatably connected between the left and right rotating seats 2, an upper support column 4 is fixedly connected to the center of the outer wall of the rotating shaft 3, a lower support column 12 is arranged under the upper support column 4, the upper support column 4 is connected with the lower support column 12 through four groups of uniformly distributed first miniature electro-hydraulic push rods 11, slide rails 13 are arranged on the lower parts of the outer walls on one side of the three groups of lower support columns 12, an electric slider 18 is slidably clamped in the inner cavity of the slide rails 13, the end part of the electric slider 18 is rotatably connected with a second rotating shaft 19 through a rotating connecting piece, a traveling wheel 14 is fixed on the outer wall of the second rotating shaft 19, a third rotating shaft 15 is arranged in an inner cavity of the sliding groove 17, a supporting foot rest 16 is fixed at the end part of the third rotating shaft 15, an upper connecting column 5 is arranged in the center of the bottom of the surveying instrument support 1, a lower connecting column 7 is arranged under the upper connecting column 5, the upper connecting column 5 is connected with the lower connecting column 7 through a control box 6, an operating panel 8 is connected to the bottom of the lower connecting column 7, a USB interface 10 is arranged in the center of the front surface of the operating panel 8 in a penetrating mode, three groups of electric telescopic rods 9 are connected to the side wall of the operating panel 8 in a penetrating mode at even intervals, and the end parts of the three groups of electric telescopic rods 9 are connected with;

a groove 20 is formed in the center of the top of the surveying instrument support 1, an external thread column 21 is arranged in the center of the bottom of an inner cavity of the groove 20, a support table 25 is rotatably connected to the top of the external thread column 21, four groups of positioning columns 26 are uniformly arranged on the side wall of the support table 25 in a penetrating mode at intervals, a through hole 22 is arranged in the center of the top of the support table 25 in a penetrating mode, a fixing table 23 with a bottom in a circular table type structure extends in the inner cavity of the through hole 22, and a magnet 24 is;

the bottom of the fixed table 23 penetrates and extends to the lower part of the inner cavity of the through hole 22, the bottom of the fixed table 23 is elastically connected with the bottom of the inner cavity of the through hole 22 through a first return spring 28, the through pipes 27 symmetrically penetrate and are arranged on the left side and the right side of the inner cavity of the support table 25, the end part, located in the inner cavity of the support table 25, of the positioning column 26 is fixedly provided with a cross rod 30, the cross rod 30 penetrates through the inner cavity of the through pipe 27 and extends to the inner cavity of the through hole 22, an arc-shaped fixture block 31 is fixedly arranged on the end part, located in the inner cavity of the through hole 22, of the cross rod 30, a second return spring 29 is connected between the;

a surveying instrument body 32 is arranged right above the fixed table 23, an internal threaded pipe 33 is arranged in the center of the bottom of the surveying instrument body 32, the internal threaded pipe 33 is attracted with the magnet 24 through a magnet 34 arranged in the center of the top of the inner cavity, the internal threaded pipe 33 is clamped with the positioning column 26 through U-shaped holes 35 which are uniformly arranged in the circumferential direction at intervals at the bottom of the outer wall, and the inner wall of the internal threaded pipe 33 is in threaded connection with the outer wall of the external threaded column 21;

the inner cavity of the lower support column 12 is divided into an upper cavity and a lower cavity, a storage battery 36 is arranged in the center of the bottom of the inner cavity of the upper cavity, the slide rail 13 is embedded in the left side of the inner cavity of the lower cavity, a second miniature electro-hydraulic push rod 37 is fixed in the center of the top of the inner cavity of the lower cavity, the bottom of the second miniature electro-hydraulic push rod 37 is connected with a transverse fixing mechanism 38, the front end and the rear end of the transverse fixing mechanism 38 respectively penetrate through the inner cavities of the sliding grooves 17 on the front side and the rear side, and the front end and the rear end of the transverse fixing mechanism;

the storage battery 36 is electrically connected with the electric slide block 18, the first miniature electro-hydraulic push rod 11 and the second miniature electro-hydraulic push rod 37 respectively;

a microprocessor is arranged in the control box 6, the input end of the microprocessor is in network connection with the handheld terminal device through a USB interface 10 or a wireless transmission module, and the wireless transmission module comprises Bluetooth transmission and Zigbee network transmission;

the output end of the microprocessor is electrically connected with the electric telescopic rod 9 through a driving unit on one hand, and is wirelessly connected with a wireless receiver arranged in the inner cavity of the lower support column 12 through a wireless transmitter on the other hand;

the wireless receiver is electrically connected with the electric slide block 18, the first miniature electro-hydraulic push rod 11 and the second miniature electro-hydraulic push rod 37 through the driving unit respectively;

the control box 6 is internally provided with an electricity storage unit which is electrically connected with the microprocessor.

The intelligent city surveying instrument based on the Internet of things provided by the invention adopts a mode of combining multiple functions to design a novel intelligent city surveying instrument, and the conditions that the traditional city surveying instrument needs to be disassembled and assembled for many times when in use, is time-consuming and labor-consuming and cannot meet the requirements of users are abandoned, and the intelligent city surveying instrument has the following beneficial effects:

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. The utility model provides an intelligent city surveying instrument based on thing networking which characterized in that: comprises a surveying instrument support (1), wherein three groups of rotation seats (2) are symmetrically arranged on the side wall of the surveying instrument support (1) at an even interval, a first rotating shaft (3) is connected between the rotation seats (2) at the left side and the right side, an upper supporting column (4) is fixedly connected with the center of the outer wall of the rotating shaft (3), a lower supporting column (12) is arranged under the upper supporting column (4), four groups of first miniature electro-hydraulic push rods (11) which are uniformly distributed are connected between the upper supporting column (4) and the lower supporting column (12), three groups of sliding rails (13) are arranged on the lower part of the outer wall of one side of the lower supporting column (12), an electric sliding block (18) is clamped in an inner cavity sliding way of the sliding rails (13), the end part of the electric sliding block (18) is rotatably connected with a second rotating shaft (19) through a rotation connecting piece, and a travelling wheel (14, the lower parts of the outer walls of the other two sides of the three groups of lower supporting columns (12) are symmetrically provided with sliding chutes (17) in a penetrating way, a third rotating shaft (15) is arranged in the inner cavity of the sliding groove (17), a supporting foot rest (16) is fixed at the end part of the third rotating shaft (15), an upper connecting column (5) is arranged in the center of the bottom of the surveying instrument bracket (1), a lower connecting column (7) is arranged under the upper connecting column (5), the upper connecting column (5) is connected with the lower connecting column (7) through a control box (6), the bottom of the lower connecting column (7) is connected with an operating panel (8), the center of the front surface of the operating panel (8) is provided with a USB interface (10) in a penetrating way, the side wall of the operating panel (8) is evenly and alternately connected with three groups of electric telescopic rods (9), and the end parts of the three groups of electric telescopic rods (9) are rotatably connected with the inner walls of the three groups of upper supporting columns (4) through rotating connecting pieces.

2. The intelligent city surveying instrument based on the internet of things according to claim 1, characterized in that: the top central authorities of surveying instrument support (1) are equipped with recess (20), the inner chamber bottom central authorities of recess (20) are equipped with external screw thread post (21), the top of external screw thread post (21) is rotated and is connected with brace table (25), the even interval of lateral wall of brace table (25) is run through and is equipped with four group's reference column (26), the top central authorities of brace table (25) run through and are equipped with through-hole (22), the inner chamber of through-hole (22) extends and has bottom fixed station (23) that are round platform type structure, magnet (24) have been inlayed at the top of fixed station (23).

3. The intelligent city surveying instrument based on the internet of things according to claim 2, characterized in that: the inner chamber lower part that extends to through-hole (22) is run through to the bottom of fixed station (23), and runs through first reset spring (28) elastic connection between the bottom of fixed station (23) and the inner chamber bottom of through-hole (22), the inner chamber left and right sides symmetry of propping up supporting bench (25) runs through and is equipped with siphunculus (27), reference column (26) are located the end fixing that props up supporting bench (25) inner chamber and have horizontal pole (30), horizontal pole (30) run through in the inner chamber of siphunculus (27) and extend to the inner chamber of through-hole (22), and the end fixing that horizontal pole (30) are located through-hole (22) inner chamber has arc fixture block (31), be connected with second reset spring (29) between the lateral wall of arc fixture block (31) and the inner wall of through-hole (22), the inner chamber of second reset spring (29) is located to a.

4. The intelligent city surveying instrument based on the internet of things according to claim 3, characterized in that: be equipped with surveying instrument body (32) directly over fixed station (23), the bottom central authorities of surveying instrument body (32) are equipped with internal thread pipe (33), magnet (34) and magnet (24) actuation mutually that internal thread pipe (33) set up through inner chamber top central authorities, U type hole (35) and reference column (26) looks joint that set up are run through the even interval of outer wall bottom circumference in internal thread pipe (33), and the outer wall threaded connection of the inner wall of internal thread pipe (33) and external screw thread post (21).

5. The intelligent city surveying instrument based on the internet of things according to claim 1, characterized in that: the inner chamber of lower prop (12) divide into cavity and lower cavity, the inner chamber bottom central authorities of going up the cavity are equipped with battery (36), slide rail (13) inlay in the inner chamber left side of cavity down, the inner chamber top central authorities of cavity are fixed with miniature electric liquid push rod of second (37) down, the bottom of the miniature electric liquid push rod of second (37) is connected with horizontal fixed establishment (38), the inner chamber in both sides spout (17) around in runs through respectively at both ends around horizontal fixed establishment (38), and both ends are through rotating connecting piece and front and back both sides respectively around horizontal fixed establishment (38) the tip of third pivot (15) rotates and is connected.

6. The intelligent city surveying instrument based on the internet of things according to claim 5, wherein: the storage battery (36) is electrically connected with the electric slide block (18), the first miniature electro-hydraulic push rod (11) and the second miniature electro-hydraulic push rod (37) respectively.

7. The intelligent city surveying instrument based on the internet of things according to claim 1, characterized in that: the control box (6) is internally provided with a microprocessor, the input end of the microprocessor is in network connection with the handheld terminal equipment through a USB interface (10) or a wireless transmission module, and the wireless transmission module comprises Bluetooth transmission and Zigbee network transmission.

8. The intelligent city surveying instrument based on the internet of things according to claim 7, wherein: the output end of the microprocessor is electrically connected with the electric telescopic rod (9) through the driving unit on one hand, and is wirelessly connected with a wireless receiver arranged in the inner cavity of the lower supporting column (12) through a wireless transmitter on the other hand.

9. The intelligent city surveying instrument based on the internet of things according to claim 8, wherein: the wireless receiver is electrically connected with the electric slide block (18), the first miniature electro-hydraulic push rod (11) and the second miniature electro-hydraulic push rod (37) through the driving unit.

10. The intelligent city surveying instrument based on the internet of things according to claim 7, wherein: and an electricity storage unit is arranged in the control box (6), and the electricity storage unit is electrically connected with the microprocessor.