CN112082069A - Be used for geographic information location measuring device - Google Patents
Be used for geographic information location measuring device Download PDFInfo
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- CN112082069A CN112082069A CN202010924488.2A CN202010924488A CN112082069A CN 112082069 A CN112082069 A CN 112082069A CN 202010924488 A CN202010924488 A CN 202010924488A CN 112082069 A CN112082069 A CN 112082069A
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- China
- Prior art keywords
- supporting rod
- geographic information
- positioning
- chip
- sensor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/28—Undercarriages for supports with one single telescoping pillar
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a device for positioning and measuring geographic information, which relates to the technical field of geographic information measurement and solves the problems of inconvenient carrying, complex assembly and complex debugging, and comprises a supporting seat, wherein when the ground is flat, the supporting seat is connected with a first supporting rod in a threaded manner, a second supporting rod is slid to adjust the height, a rotating handle is rotated, a locking bolt locking device is locked, a surveying instrument is arranged on the second supporting rod, when the ground is not flat, an inserting rod is inserted into the ground to support the device, a laser is opened, a sensing box is rotated, when the light of the laser passes through a through hole, a distance measuring sensor is in a horizontal state, a GPS (global positioning system) positioner detects geographic position information, a temperature and humidity sensor is used for acquiring temperature and humidity information, the distance measuring sensor is used for acquiring geographic information data, an AD (analog) chip is used for converting acquired analog quantity signals into digital quantity signals of a, the CPU chip preprocesses the data and transmits the data to the memory, and has the advantages of portability and simple assembly and debugging.
Description
Technical Field
The invention relates to the technical field of geographic information measurement, in particular to a geographic information positioning and measuring device.
Background
With the development of society and the progress of science and technology, people enter a highly information-oriented era, people can not leave support of various information in production and life, geographic information is a very critical field, and is widely applied to various aspects such as electronic maps, navigation and the like, so that timely and reliable geographic data support is required to be provided, relevant accurate information is provided for application, and therefore a geographic information data acquisition mechanism needs to use a positioning device to carry out wide survey and set geographic coordinates.
In the in-process at geographic information location, need erect measuring instrument at the earth's surface, fix a position the operation to fixed position, current positioner is when erectting, can't erect in some regions that have the slope, make the degree of difficulty increase of location operation, be difficult to current region to region and vehicle that the environment is complicated, measuring equipment is difficult to carry, it is easily impaired to carry the in-process, also make operating personnel's intensity of labour increase, current positioner's instrument is consuming time long at the in-process of equipment, the procedure of equipment is complicated, operating personnel's operating time has been increased, and make the inefficiency of location operation, the unable quick equipment instrument carries out the location operation, the debugging is complicated and the precision is low after the equipment, influence measured data.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a positioning and measuring device for geographic information to solve the problems of inconvenient carrying, complex assembly and complex debugging.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a be used for geographic information location measuring device, includes supporting seat, surveying instrument and bracing piece subassembly, supporting seat threaded connection bracing piece subassembly, the bracing piece subassembly includes first bracing piece and second bracing piece, first bracing piece sliding connection second bracing piece, second bracing piece threaded connection surveying instrument, inside data acquisition layer and the data processing layer of being divided into of surveying instrument, the in situ GPS locator and the warm and humid sensor of being equipped with of data acquisition, the in situ AD chip, CPU chip and the memory of being equipped with of data processing, surveying instrument rotates connects range sensor, the range sensor bottom is equipped with laser instrument and gravity awl.
As a further scheme of the invention, the supporting seat is provided with a mounting groove and a mounting platform, the inner surface of the mounting platform is processed with threads, and the supporting seat is in threaded connection with the first supporting rod.
As a further scheme of the invention, the outer surface of the lower part of the first support rod is processed with threads, the bottom of the first support rod is fixedly connected with an inserted rod, and the inserted rod is positioned in the placing groove.
As a further scheme of the invention, a threaded hole is processed on the side surface of the first support rod, a locking bolt is in threaded connection with the side surface of the first support rod, and the locking bolt is in threaded connection with a rotating handle.
As a further scheme of the invention, the GPS positioner, the AD chip, the CPU chip, the memory and the temperature and humidity sensor are all fixedly connected with the surveying instrument.
As a further scheme of the invention, a fixed shaft is arranged on the surveying instrument and is rotationally connected with a sensing box, and a distance measuring sensor is arranged in the sensing box and is fixedly connected with the sensing box.
As a further scheme of the invention, the bottom of the sensing box is fixedly connected with 2 laser devices and connecting ropes, the lower ends of the connecting ropes are fixedly connected with a gravity cone, and a through hole is formed in the gravity cone.
As a further scheme of the invention, the distance measuring sensor, the GPS positioner and the temperature and humidity sensor are electrically connected with an AD chip, the AD chip is electrically connected with a CPU chip, and the CPU chip is electrically connected with a memory.
In conclusion, compared with the prior art, the invention has the following beneficial effects:
for the area with flat ground, the supporting seat can be in threaded connection with the first supporting rod, the supporting seat plays a role of supporting and stabilizing the device, then the height of the second supporting rod adjusting device is adjusted according to actual needs, the rotating handle is rotated after the adjustment is finished, the rotating handle drives the locking bolt to rotate, the locking bolt locks the first supporting rod and the second supporting rod, the surveying instrument is installed on the second supporting rod, if the ground has a certain gradient, the inserting rod is inserted into the ground to support the device, the gravity cone is perpendicular to the sea level due to the action of gravity, the laser is opened, the rotating sensing box is adjusted, when light generated by the laser passes through a through hole in the gravity cone, the distance measuring sensor is in a horizontal state, the GPS positioner is used for detecting geographical position information, the temperature and humidity sensor is used for collecting geographical temperature and humidity, the distance measuring sensor is used for collecting geographical information data, AD chip is used for converting the analog signal that GPS locator, range finding sensor and temperature and humidity sensor gathered into the digital signal that the CPU chip can discern, the CPU chip sends the memory after with data preprocessing, the memory is used for storing data so that operating personnel draws the call, has portablely, assembles and debugs simple advantage.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of a geographic information positioning and measuring device according to the present invention.
Fig. 2 is an enlarged schematic view of the structure at a in the invention.
Fig. 3 is a schematic structural diagram of the surveying instrument in the invention.
Fig. 4 is a block diagram of the internal structure of the surveying instrument in the invention.
Fig. 5 is a signal block diagram of a control module for a geographic information positioning and measuring device according to the present invention.
Reference numerals: the device comprises a support seat 1, a placement groove 101, a mounting table 102, a first supporting rod 2, an inserting rod 3, a rotating handle 4, a locking bolt 5, a second supporting rod 6, a surveying instrument 7, a GPS positioner 701, an AD chip 702, a CPU chip 703, a memory 704, a temperature and humidity sensor 705, a fixed shaft 8, a sensing box 9, a distance measuring sensor 10, a laser 11, a connecting rope 12, a gravity cone 13 and a through hole 1301.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Example 1
Shown by fig. 1 ~ 5, a be used for geographic information location measuring device, including supporting seat 1, be equipped with mounting groove 101 and mount table 102 on the supporting seat 1, mount table 102 internal surface processing is threaded, the first bracing piece 2 of 1 threaded connection of supporting seat, the processing of 2 lower parts of first bracing piece surface is threaded, 2 bottom fixed connection inserted bar 3 of first bracing piece, inserted bar 3 is located mounting groove 101, 2 sliding connection second bracing pieces 6 of first bracing piece, the processing of 2 sides of first bracing piece is threaded hole, 2 sides threaded connection locking bolt 5 of first bracing piece, the rotatory handle 4 of 5 threaded connection of locking bolt, the processing of 6 upper surfaces of second bracing piece is threaded, 6 threaded connection surveying instrument 7 of second bracing piece.
To the flat region in ground, can be with the first bracing piece 2 of 1 threaded connection of supporting seat, supporting seat 1 plays the effect of supporting and steady device, then according to actual need slide 6 adjusting device's of second bracing piece height, adjusts the back and rotates rotatory handle 4, rotatory handle 4 drives locking bolt 5 rotatory, locking bolt 5 locks first bracing piece 2 and second bracing piece 6, installs surveying instrument 7 on second bracing piece 6, if ground has certain slope, inserts ground support the device with inserted bar 3.
Example 2
Referring to fig. 1 to 5, a device for positioning and measuring geographic information includes a surveying instrument 7, in order to reduce signal interference, the inside of the surveying instrument 7 is divided into two layers, which are a data acquisition layer and a data processing layer, a GPS locator 701 and a temperature and humidity sensor 705 are arranged in the data acquisition layer, the GPS locator 701 and the temperature and humidity sensor 705 are fixedly connected to the surveying instrument 7, an AD chip 702, a CPU chip 703 and a memory 704 are arranged in the data processing layer, the AD chip 702, the CPU chip 703 and the memory 704 are fixedly connected to the surveying instrument 7, a fixing shaft 8 is arranged on the surveying instrument 7, the fixing shaft 8 is rotatably connected to a sensing box 9, a distance measuring sensor 10 is arranged in the sensing box 9, the sensing box 9 is fixedly connected to a laser 11 and a connecting rope 12, the connecting rope 12 is 2, a gravity cone 13 is fixedly connected to the lower end of the connecting rope 12, the gravity cone 13 is provided with a through hole 1301.
Preferably, in this embodiment, the distance measuring sensor 10, the GPS locator 701 and the temperature and humidity sensor 705 are electrically connected to an AD chip 702, the AD chip 702 is electrically connected to a CPU chip 703, and the CPU chip 703 is electrically connected to a memory 704.
Due to the action of gravity, the gravity cone 13 is perpendicular to the sea level, the laser 11 is turned on and the rotation sensing box 9 is adjusted, when light generated by the laser 11 passes through the through hole 1301 in the gravity cone 13, the ranging sensor 10 is in a horizontal state, the GPS positioner 701 is used for detecting geographical position information, the temperature and humidity sensor 705 is used for collecting geographical temperature and humidity, the ranging sensor 10 is used for collecting geographical information data, the AD chip 702 is used for converting analog quantity signals collected by the GPS positioner 701, the ranging sensor 10 and the temperature and humidity sensor 705 into digital quantity signals which can be identified by the CPU chip 703, the CPU chip 703 preprocesses the data and then transmits the preprocessed data to the memory 704, and the memory 704 is used for storing the data so that an operator can extract and call the data.
The rest of the structure of this example is the same as example 1.
In summary, the working principle of the invention is as follows:
for the area with flat ground, the supporting seat 1 can be connected with the first supporting rod 2 by screw thread, the supporting seat 1 can play the role of supporting and stabilizing device, then the second supporting rod 6 can be slid according to the actual requirement to adjust the height of the device, after the adjustment is finished, the rotating handle 4 is rotated, the rotating handle 4 drives the locking bolt 5 to rotate, the locking bolt 5 locks the first supporting rod 2 and the second supporting rod 6, the surveying instrument 7 is installed on the second supporting rod 6, if the ground has a certain gradient, the inserting rod 3 is inserted into the ground to support the device, due to the action of gravity, the gravity cone 13 is vertical to the sea level, the laser 11 is opened and the rotation sensing box 9 is adjusted, when the light generated by the laser 11 passes through the through hole 1301 on the gravity cone 13, the distance measuring sensor 10 is in horizontal state, the GPS positioner 701 is used for detecting the geographical position information, the temperature and humidity sensor 705 is used for collecting geographic temperature and humidity, the distance measuring sensor 10 is used for collecting geographic information data, the AD chip 702 is used for converting analog quantity signals collected by the GPS positioner 701, the distance measuring sensor 10 and the temperature and humidity sensor 705 into digital quantity signals which can be identified by the CPU chip 703, the CPU chip 703 preprocesses the data and then transmits the data to the memory 704, and the memory 704 is used for storing the data so that an operator can extract and call the data.
It should be particularly noted that the support rod assembly, the surveying instrument 7, the distance measuring sensor 10, the laser 11 and the gravity cone 13 in the present application are applications of the prior art, and the combined design and application of the support rod assembly, the surveying instrument 7, the distance measuring sensor 10, the laser 11 and the gravity cone 13 to a device for positioning and measuring geographic information is an innovative point of the present application, which effectively solves the problems of inconvenient carrying, complex assembly and complex debugging.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A positioning and measuring device for geographic information comprises a supporting seat (1), a surveying and mapping instrument (7) and a supporting rod assembly, wherein the supporting seat (1) is in threaded connection with the supporting rod assembly, characterized in that the supporting rod component comprises a first supporting rod (2) and a second supporting rod (6), the first supporting rod (2) is connected with a second supporting rod (6) in a sliding way, the second supporting rod (6) is connected with a surveying instrument (7) in a threaded way, the inside of the surveying instrument (7) is divided into a data acquisition layer and a data processing layer, a GPS locator (701) and a temperature and humidity sensor (705) are arranged in the data acquisition layer, an AD chip (702), a CPU chip (703) and a memory (704) are arranged in the data processing layer, surveying instrument (7) rotate and connect range sensor (10), range sensor (10) bottom is equipped with laser instrument (11) and gravity awl (13).
2. The device for positioning and measuring geographic information according to claim 1, wherein the supporting base (1) is provided with a mounting groove (101) and a mounting platform (102), the mounting platform (102) is internally threaded, and the supporting base (1) is in threaded connection with the first supporting rod (2).
3. The device for positioning and measuring geographic information according to claim 2, wherein the outer surface of the lower part of the first supporting rod (2) is threaded, the bottom of the first supporting rod (2) is fixedly connected with an inserted rod (3), and the inserted rod (3) is positioned in the placing groove (101).
4. The device for positioning and measuring geographic information according to claim 3, wherein the side of the first supporting rod (2) is provided with a threaded hole, the side of the first supporting rod (2) is in threaded connection with a locking bolt (5), and the locking bolt (5) is in threaded connection with a rotating handle (4).
5. The device for positioning and measuring geographic information according to claim 1, wherein the GPS locator (701), the AD chip (702), the CPU chip (703), the memory (704) and the temperature and humidity sensor (705) are fixedly connected with the mapper (7).
6. The device for positioning and measuring geographic information according to claim 1, wherein the surveying instrument (7) is provided with a fixed shaft (8), the fixed shaft (8) is rotatably connected with the sensing box (9), the sensing box (9) is internally provided with a distance measuring sensor (10), and the distance measuring sensor (10) is fixedly connected with the sensing box (9).
7. The device for positioning and measuring geographic information according to claim 6, wherein the bottom of the sensing box (9) is fixedly connected with the laser (11) and the connecting ropes (12), the number of the connecting ropes (12) is 2, the lower end of the connecting rope (12) is fixedly connected with the gravity cone (13), and the gravity cone (13) is provided with a through hole (1301).
8. The device for positioning and measuring geographic information according to claim 5, wherein the ranging sensor (10), the GPS locator (701) and the temperature and humidity sensor (705) are electrically connected with an AD chip (702), the AD chip (702) is electrically connected with a CPU chip (703), and the CPU chip (703) is electrically connected with a memory (704).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010924488.2A CN112082069A (en) | 2020-09-05 | 2020-09-05 | Be used for geographic information location measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010924488.2A CN112082069A (en) | 2020-09-05 | 2020-09-05 | Be used for geographic information location measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN112082069A true CN112082069A (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010924488.2A Pending CN112082069A (en) | 2020-09-05 | 2020-09-05 | Be used for geographic information location measuring device |
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| CN (1) | CN112082069A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2816554A1 (en) * | 1978-04-17 | 1979-10-25 | Josef Bieber | Angle marking and measuring device - has theodolite-like instrument mounted on slide on rotatable arm |
| CN103913153A (en) * | 2014-04-30 | 2014-07-09 | 国家电网公司 | Automatic leveling laser measurement instrument |
| CN207556539U (en) * | 2017-12-08 | 2018-06-29 | 贵州鼎盛岩土工程有限公司 | A kind of Multifunctional mapping instrument for engineering |
| CN209909477U (en) * | 2019-03-25 | 2020-01-07 | 霍海锋 | Supplementary mapping device of mapping engineering |
| CN210050522U (en) * | 2019-05-29 | 2020-02-11 | 湖北文理学院 | Can place total powerstation on various ground |
| CN210070931U (en) * | 2019-05-06 | 2020-02-14 | 淮阴师范学院 | Laser detection alignment device |
| CN210154582U (en) * | 2019-07-18 | 2020-03-17 | 友谊国际工程咨询有限公司 | Quick leveling type total station based on BIM technology |
| CN210979146U (en) * | 2019-12-18 | 2020-07-10 | 李震 | Portable geographic information surveying instrument |
| CN111457894A (en) * | 2020-03-31 | 2020-07-28 | 徐州迪沃通讯工程有限公司 | Be applied to open-air measuring cold survey formula high accuracy total powerstation |
-
2020
- 2020-09-05 CN CN202010924488.2A patent/CN112082069A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2816554A1 (en) * | 1978-04-17 | 1979-10-25 | Josef Bieber | Angle marking and measuring device - has theodolite-like instrument mounted on slide on rotatable arm |
| CN103913153A (en) * | 2014-04-30 | 2014-07-09 | 国家电网公司 | Automatic leveling laser measurement instrument |
| CN207556539U (en) * | 2017-12-08 | 2018-06-29 | 贵州鼎盛岩土工程有限公司 | A kind of Multifunctional mapping instrument for engineering |
| CN209909477U (en) * | 2019-03-25 | 2020-01-07 | 霍海锋 | Supplementary mapping device of mapping engineering |
| CN210070931U (en) * | 2019-05-06 | 2020-02-14 | 淮阴师范学院 | Laser detection alignment device |
| CN210050522U (en) * | 2019-05-29 | 2020-02-11 | 湖北文理学院 | Can place total powerstation on various ground |
| CN210154582U (en) * | 2019-07-18 | 2020-03-17 | 友谊国际工程咨询有限公司 | Quick leveling type total station based on BIM technology |
| CN210979146U (en) * | 2019-12-18 | 2020-07-10 | 李震 | Portable geographic information surveying instrument |
| CN111457894A (en) * | 2020-03-31 | 2020-07-28 | 徐州迪沃通讯工程有限公司 | Be applied to open-air measuring cold survey formula high accuracy total powerstation |
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Application publication date: 20201215 |