CN213148980U - Calibration system of high-speed railway high wind disaster prevention equipment - Google Patents
Calibration system of high-speed railway high wind disaster prevention equipment Download PDFInfo
- Publication number
- CN213148980U CN213148980U CN202021604466.XU CN202021604466U CN213148980U CN 213148980 U CN213148980 U CN 213148980U CN 202021604466 U CN202021604466 U CN 202021604466U CN 213148980 U CN213148980 U CN 213148980U
- Authority
- CN
- China
- Prior art keywords
- wind
- tunnel
- vehicle
- disaster prevention
- speed
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The utility model discloses a calibration system of big wind disaster prevention equipment of high-speed railway, calibration system includes on-vehicle wind-tunnel, wind-tunnel position adjustment mechanism, a control system, server terminal and data collection card, on-vehicle wind-tunnel passes through wind-tunnel position adjustment mechanism and installs on the inspection car, install first locator on the on-vehicle wind-tunnel, wind speed and wind pressure measuring apparatu is installed to the air outlet department of on-vehicle wind-tunnel, data collection card is connected with the signal output part who waits to mark big wind disaster prevention equipment of high-speed railway, data collection card is connected with the server terminal, wait to mark and install the second locator on the big wind disaster prevention equipment of high-speed railway, on-vehicle wind-tunnel, position adjustment mechanism, the server terminal, first locator, wind speed and wind pressure measuring apparatu and second locator are all connected. The calibration system can realize the on-site calibration of wind speed and wind direction, does not influence the normal service of an instrument, has high calibration efficiency, saves manpower and material resources, and can ensure the safety of operators and the instrument.
Description
Technical Field
The utility model relates to a technical field is markd at the scene to anemorumbometer particularly, relates to a calibration system of big wind disaster prevention equipment of high-speed railway based on-vehicle wind-tunnel.
Background
In recent years, the construction of high-speed railways in China has attracted attention, but with the further extension of high-speed railway networks, high-speed trains face various threats to severe wind environments. Because the train has high running speed and extremely high requirement on the stability of the train, the running safety accident is easily caused under the action of the horizontal load generated by strong wind. In order to avoid high-speed rail accidents caused by strong wind, railway departments install high-speed rail strong wind disaster prevention equipment (such as an anemorumbometer) along the high-speed rail to monitor the wind speed and the wind direction along the rail in real time, and when the wind speed is greater than a certain limit value, the system automatically gives an alarm to related departments so as to take corresponding speed limit/wheel stop countermeasures. Therefore, the strong wind disaster prevention equipment along the high-speed rail is an important technical means for guaranteeing the driving safety of the high-speed train.
However, as the service life increases, the performance degradation precision of the gale disaster prevention device decreases, and the wind speed and the wind direction may not be accurately and reliably monitored, which may cause the conditions of false report, missed report and the like to threaten the driving safety of the train. The railway administration stipulates that each railway administration needs to periodically calibrate the strong wind disaster prevention equipment in the branch pipeline section. However, the calibration work of the existing strong wind disaster prevention equipment is mainly completed before the installation of the instrument, and is generally performed in a wind tunnel laboratory. The existing calibration method for the gale disaster prevention equipment needs to dismantle the gale disaster prevention equipment one by one, calibrate the gale disaster prevention equipment again in a wind tunnel laboratory and then install the gale disaster prevention equipment.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a calibration system of big wind disaster prevention equipment of high-speed railway, this calibration system can realize the on-the-spot calibration of wind speed wind direction, does not influence the normal labour of instrument, and calibration efficiency is high, the material resources of using manpower sparingly.
In order to realize the above object, the utility model provides a calibration system of big wind disaster prevention equipment of high-speed railway, including on-vehicle wind-tunnel, wind-tunnel position adjustment mechanism, a control system, server terminal and data acquisition card, on-vehicle wind-tunnel passes through wind-tunnel position adjustment mechanism and installs on the inspection vehicle, install first locator on the on-vehicle wind-tunnel, wind speed and wind pressure measuring apparatu is installed to the air outlet department of on-vehicle wind-tunnel, data acquisition card is connected with the signal output part who treats calibration big wind disaster prevention equipment of high-speed railway, data acquisition card is connected with the server terminal, treat to mark and install the second locator on the big wind disaster prevention equipment of high-speed railway, on-vehicle wind-tunnel, wind-tunnel position adjustment mechanism, the server terminal, first locator, wind speed and wind pressure measuring apparatu and.
Further, wind-tunnel position adjustment mechanism is including supporting the base, supports the pedestal mounting on the inspection car, is equipped with the slide rail on the support base, and it sets up a slide to slide on the slide rail, installs a mechanical arm on the slide, and the other end at the mechanical arm is installed to on-vehicle wind-tunnel, and the actuating mechanism of mechanical arm and slide all is connected with control system.
Further, a plurality of fans are installed side by side in the vehicle-mounted wind tunnel, adjacent fans are separated through a partition plate, a rectifying layer is further arranged in the vehicle-mounted wind tunnel, and the rectifying layer is arranged between the fans and an air outlet of the vehicle-mounted wind tunnel.
Further, the second positioner is arranged right above or right below the high-speed rail strong wind disaster prevention device to be calibrated.
Furthermore, the vehicle-mounted wind tunnel, the wind tunnel azimuth adjusting mechanism, the first positioner and the second positioner are in wireless communication connection with the control system.
Further, the high-speed rail strong wind disaster prevention device to be calibrated is an anemorumbometer to be calibrated.
By applying the technical scheme of the utility model, the calibration system is transported to the vicinity of the anemorumbometer to be calibrated along the high-speed rail by the inspection vehicle during on-site calibration, the vehicle-mounted wind tunnel applies uniform wind to the equipment for preventing high-speed rail strong wind from being calibrated, and the data acquisition card acquires the measured value of the equipment for preventing high-speed rail strong wind from being calibrated and transmits the measured value to the control system; the applied wind speed is an artificial set value, and the applied wind direction is controlled by adjusting the rotation angle of the wind tunnel azimuth adjusting mechanism; checking the wind speed and direction information received by the data acquisition card by comparing the wind speed and direction information of the vehicle-mounted wind tunnel measured by the wind speed and wind pressure measuring instrument with the wind speed and direction information received by the data acquisition card; and performing on-site calibration on the high-speed rail strong wind disaster prevention equipment to be calibrated by comparing the wind speed value output by the vehicle-mounted wind tunnel with the measured value of the high-speed rail strong wind disaster prevention equipment to be calibrated. Compared with the existing calibration mode, the calibration system of the utility model does not need to dismantle the high-speed rail and high-wind disaster prevention equipment to be calibrated one by one, and recalibrates and reinstalls in the wind tunnel laboratory; the wind speed and wind direction on-site calibration can be realized, the normal service of the instrument is not influenced, the calibration efficiency is high, manpower and material resources are saved, and the safety of operators and the instrument can be guaranteed.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a calibration system according to an embodiment of the present invention.
Fig. 2 is the utility model discloses on-vehicle wind-tunnel's among calibration system internal structure schematic diagram.
Fig. 3 is a schematic system operation diagram of the calibration system according to the embodiment of the present invention.
Wherein the figures include the following reference numerals:
1. a vehicle-mounted wind tunnel; 2. a wind tunnel azimuth adjusting mechanism; 3. a control system; 4. a server terminal; 5. a data acquisition card; 6. a first positioner; 7. a wind speed and wind pressure measuring instrument; 8. a second positioner; 11. a fan; 12. a rectifying layer; 21. a support base; 22. a slide rail; 23. a slide base; 24. a mechanical arm; 100. and (5) calibrating the anemorumbometer.
Detailed Description
To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather the intention is merely to facilitate a distinction between corresponding parts. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
Referring to fig. 1 to fig. 3, a calibration system for a high-speed rail strong wind disaster prevention device according to an embodiment of the present invention mainly includes an on-vehicle wind tunnel 1, a wind tunnel position adjusting mechanism 2, a control system 3, a server terminal 4, and a data acquisition card 5. Wherein, the vehicle-mounted wind tunnel 1 is arranged on a patrol vehicle (not shown in the figure) through a wind tunnel azimuth adjusting mechanism 2; a first positioner 6 for determining the relative position of the vehicle-mounted wind tunnel 1 is arranged on the vehicle-mounted wind tunnel 1; a wind speed and wind pressure measuring instrument 7 is arranged at the air outlet of the vehicle-mounted wind tunnel 1, and the wind speed and wind pressure measuring instrument 7 is used for measuring the wind speed and the wind direction at the air outlet of the vehicle-mounted wind tunnel 1 and transmitting the measuring result to the control system 3; the data acquisition card 5 is connected with the signal output end of the anemorumbometer 100 to be calibrated, the data acquisition card 5 is also connected with the server terminal 4, and the data acquisition card 5 is used for recording the output electric signal of the anemorumbometer 100 to be calibrated and transmitting the output electric signal to the server terminal 4; a second positioner 8 is arranged on the anemorumbometer 100 to be calibrated, and the second positioner 8 is used for determining the relative position of the anemorumbometer 100 to be calibrated; a vehicle-mounted wind tunnel 1, a wind tunnel azimuth adjusting mechanism 2, a server terminal 4, a first positioner 6, a wind speed and wind pressure measuring instrument 7 and a second positioner 8 in the calibration system are all connected with a control system 3.
Before the calibration on site, the calibration system of the high-speed rail and high-wind disaster prevention equipment performs laboratory calibration on the wind speed and the wind direction output by the vehicle-mounted wind tunnel 1 in the wind tunnel, provides a calibration reference for the calibration on site, and determines the optimal distance between the anemorumbometer 100 to be calibrated and the wind port of the wind tunnel 1 out of the vehicle; during field calibration, the calibration system is transported to the position near the anemorumbometer 100 to be calibrated along the high-speed rail by a patrol vehicle, the vehicle-mounted wind tunnel 1 applies uniform wind to the anemorumbometer 100 to be calibrated, and the data acquisition card 5 acquires the measured value of the anemorumbometer 100 to be calibrated and transmits the measured value to the control system 3; the applied wind speed is an artificial set value, and the applied wind direction is controlled by adjusting the rotation angle of the wind tunnel azimuth adjusting mechanism 2; the wind speed and direction information received by the data acquisition card 5 is checked by comparing the wind speed and direction information of the vehicle-mounted wind tunnel 1 measured by the wind speed and wind pressure measuring instrument 7 with the wind speed and direction information received by the data acquisition card 5; and performing field calibration on the anemorumbometer 100 to be calibrated by comparing the wind speed value output by the vehicle-mounted wind tunnel 1 with the measured value of the anemorumbometer 100 to be calibrated. Compared with the existing calibration mode, the calibration system of the utility model does not need to dismantle the anemorumbometer 100 to be calibrated one by one, and then recalibrate and install the anemorumbometer again in a wind tunnel laboratory; the wind speed and wind direction on-site calibration can be realized, the normal service of the instrument is not influenced, the calibration efficiency is high, manpower and material resources are saved, and the safety of operators and the instrument can be guaranteed.
Specifically, referring to fig. 1, in the present embodiment, the wind tunnel orientation adjusting mechanism 2 includes a supporting base 21, the supporting base 21 is fixedly mounted on the inspection vehicle, a slide rail 22 is disposed on the supporting base 21, a slide carriage 23 is slidably disposed on the slide rail 22, a mechanical arm 24 is mounted on the slide carriage 23, the vehicle-mounted wind tunnel 1 is mounted at the other end of the mechanical arm 24, and the mechanical arm 24 and a driving mechanism of the slide carriage 23 are both connected to the control system 3 (as shown in fig. 1, a wireless communication connection is provided). The mechanical arm 24 is rotatably mounted on the sliding base 23, and the direction of the vehicle-mounted wind tunnel 1 can be adjusted through rotation of the mechanical arm 24, so that the calibration wind direction of the anemorumbometer 100 to be calibrated can be determined. With the arrangement, the mechanical arm 24 can support the vehicle-mounted wind tunnel 1 and control the direction, height and the like of the air outlet of the vehicle-mounted wind tunnel 1; the mechanical arm 24 is matched with the sliding seat 23 in a sliding way along the sliding rail 22, so that the vehicle-mounted wind tunnel 1 is accurately positioned.
Referring to fig. 2, in this embodiment, six fans 11 are installed in two rows in the vehicle-mounted wind tunnel 1, adjacent fans 11 are separated by a partition, a rectifying layer 12 is further disposed in the vehicle-mounted wind tunnel 1, and the rectifying layer 12 is disposed between the fans 11 and an air outlet of the vehicle-mounted wind tunnel 1. With the arrangement, the six fans 11 work simultaneously, and the airflow is stably and uniformly blown to the anemorumbometer 100 to be calibrated through the rectification action of the partition plates and the rectification layer 12. The shape of the air outlet of the vehicle-mounted wind tunnel 1 can be rectangular or other suitable shapes, and the size of the air outlet can be selected according to actual conditions.
Adopt the utility model discloses a calibration system carries out calibration method of maring to high-speed railway strong wind disaster prevention equipment, including following step:
step S1: the inspection vehicle transports the calibration system to the position near the anemorumbometer 100 to be calibrated; before field calibration is carried out, the second positioner 8 is arranged on the anemorumbometer 100 to be calibrated, and the second positioner 8 is arranged right above or right below the anemorumbometer 100 to be calibrated; connecting corresponding lines; the control system 3 receives the position coordinates of the first positioner 6 and the second positioner 8, calculates the lifting height and the rotation angle of the wind tunnel azimuth adjusting mechanism 2 according to the position coordinates of the first positioner 6 and the second positioner 8, and sends a control instruction to the wind tunnel azimuth adjusting mechanism 2;
step S2: after the wind tunnel azimuth adjusting mechanism 2 drives the vehicle-mounted wind tunnel 1 to reach a designated position, the control system 3 sends a starting instruction of calibrating wind speed and direction to the vehicle-mounted wind tunnel 1, and the vehicle-mounted wind tunnel 1 blows air to the anemorumbometer 100 to be calibrated;
step S3: the wind speed and wind pressure measuring instrument 7 measures the wind speed and the wind direction at the air outlet of the vehicle-mounted wind tunnel 1, the measuring result is transmitted to the control system 3, and the control system 3 transmits the wind speed and the wind direction information at the air outlet of the vehicle-mounted wind tunnel 1 to the server terminal 4;
step S4: the data acquisition card 5 records the wind speed and direction output signals of the anemorumbometer 100 to be calibrated and transmits the wind speed and direction output signals to the server terminal 4, and the signals are acquired and stored after the wind speed and direction output signals are stable, so that the acquisition of a working condition signal is completed;
step S5: the server terminal 4 compares the wind speed and direction output information of the anemorumbometer 100 to be calibrated, which is collected by the data acquisition card 5, with the wind speed and direction information of the air outlet of the vehicle-mounted wind tunnel 1, which is measured by the wind speed and wind pressure measuring instrument 7, and if the comparison difference value exceeds a set value, an alarm is given to remind a worker to perform troubleshooting; if the comparison difference value does not exceed the set value, entering the next step;
step S6: if the position coordinate of the second positioner 8 received by the control system 3 does not change, the control system 3 sends a starting instruction of the next calibrated wind speed and direction to the vehicle-mounted wind tunnel 1, and repeats the steps from S3 to S5 to complete the signal data acquisition of the next calibrated wind speed and direction until all the signal data acquisition of the anemoscope 100 to be calibrated is completed; if the position coordinate of the second locator 8 received by the control system 3 changes, repeating the steps S1 to S5 to complete the signal data acquisition of the next calibrated anemorumbometer 100 until all the signal data acquisition of the anemorumbometer 100 to be calibrated is completed;
step S7: the server terminal 4 and data analysis software (e.g., Matlab, Origin, Excel, etc.) are used to analyze the relationship between the collected signal data and the calibrated wind speed and direction values, thereby completing the calibration of the anemorumbometer 100 to be calibrated.
Further, before field calibration, laboratory calibration is performed on the wind speed and the wind direction output by the vehicle-mounted wind tunnel 1 in the wind tunnel, a calibration reference is provided for the field calibration, and meanwhile, the optimal distance R between the anemorumbometer 100 to be calibrated and the air outlet of the vehicle-mounted wind tunnel 1 is determined. Therefore, the calibration result can be more accurate.
Specifically, step S1 specifically includes: the control system 3 receives a position coordinate signal of the anemorumbometer 100 to be calibrated through the second positioner 8, and calculates a due position coordinate of the vehicle-mounted wind tunnel 1 (a position coordinate that the vehicle-mounted wind tunnel 1 should reach); meanwhile, the control system 3 receives the instant position coordinate signal of the vehicle-mounted wind tunnel 1 through the first positioner 6, calculates the lifting height and the rotation angle of the wind tunnel position adjusting mechanism 2 by combining the due position coordinate of the vehicle-mounted wind tunnel 1, sends the lifting height and the rotation angle instruction to the wind tunnel position adjusting mechanism 2, and the wind tunnel position adjusting mechanism 2 moves and fixes the vehicle-mounted wind tunnel 1 to the due position coordinate according to the received instruction.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a calibration system of big wind disaster prevention equipment of high-speed railway, a serial communication port, including on-vehicle wind-tunnel (1), wind-tunnel position adjustment mechanism (2), control system (3), server terminal (4) and data acquisition card (5), on-vehicle wind-tunnel (1) is passed through wind-tunnel position adjustment mechanism (2) are installed on the inspection vehicle, install first locator (6) on-vehicle wind-tunnel (1), wind speed wind pressure measuring apparatu (7) are installed to the air outlet department of on-vehicle wind-tunnel (1), data acquisition card (5) are connected with the signal output part who waits to mark big wind disaster prevention equipment of high-speed railway, data acquisition card (5) with server terminal (4) are connected, wait to mark and install second locator (8) on the big wind disaster prevention equipment of high-speed railway, on-tunnel (1), position adjustment mechanism (2), The server terminal (4), the first positioner (6), the wind speed and wind pressure measuring instrument (7) and the second positioner (8) are all connected with the control system (3).
2. The calibration system of the high-speed rail and high-wind disaster prevention device according to claim 1, wherein the wind tunnel position adjusting mechanism (2) comprises a supporting base (21), the supporting base (21) is mounted on the inspection vehicle, a slide rail (22) is arranged on the supporting base (21), a slide seat (23) is slidably arranged on the slide rail (22), a mechanical arm (24) is mounted on the slide seat (23), the vehicle-mounted wind tunnel (1) is mounted at the other end of the mechanical arm (24), and driving mechanisms of the mechanical arm (24) and the slide seat (23) are connected with the control system (3).
3. The calibration system of the high-speed rail and high-wind disaster prevention device according to claim 1, wherein a plurality of fans (11) are installed in the vehicle-mounted wind tunnel (1) side by side, adjacent fans (11) are separated by a partition plate, a rectifying layer (12) is further arranged in the vehicle-mounted wind tunnel (1), and the rectifying layer (12) is arranged between the fans (11) and an air outlet of the vehicle-mounted wind tunnel (1).
4. The system for calibrating the high-speed rail and high-wind disaster prevention equipment according to claim 1, wherein the second positioner (8) is installed right above or right below the high-speed rail and high-wind disaster prevention equipment to be calibrated.
5. The calibration system of the high-speed rail and high-wind disaster prevention device according to claim 1, wherein the vehicle-mounted wind tunnel (1), the wind tunnel azimuth adjusting mechanism (2), the first positioner (6) and the second positioner (8) are in wireless communication connection with the control system (3).
6. The system for calibrating the high-speed rail and high-wind disaster prevention device according to any one of claims 1 to 5, wherein the high-speed rail and high-wind disaster prevention device to be calibrated is an anemorumbometer (100) to be calibrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021604466.XU CN213148980U (en) | 2020-08-05 | 2020-08-05 | Calibration system of high-speed railway high wind disaster prevention equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021604466.XU CN213148980U (en) | 2020-08-05 | 2020-08-05 | Calibration system of high-speed railway high wind disaster prevention equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213148980U true CN213148980U (en) | 2021-05-07 |
Family
ID=75736091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021604466.XU Active CN213148980U (en) | 2020-08-05 | 2020-08-05 | Calibration system of high-speed railway high wind disaster prevention equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213148980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067848A (en) * | 2020-08-05 | 2020-12-11 | 国家铁路局安全技术中心 | Calibration system and calibration method for high-speed rail strong wind disaster prevention equipment |
-
2020
- 2020-08-05 CN CN202021604466.XU patent/CN213148980U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067848A (en) * | 2020-08-05 | 2020-12-11 | 国家铁路局安全技术中心 | Calibration system and calibration method for high-speed rail strong wind disaster prevention equipment |
| CN112067848B (en) * | 2020-08-05 | 2023-03-07 | 国家铁路局安全技术中心 | Calibration system and calibration method for high-speed rail strong wind disaster prevention equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103235562B (en) | Transformer station is based on the comprehensive parameters detection system of crusing robot and method for inspecting | |
| CN109407128A (en) | A kind of electric power line pole tower system for monitoring displacement and method | |
| CN108050952B (en) | Method for monitoring tunnel section deformation by using tunnel section deformation monitoring system | |
| CN213148980U (en) | Calibration system of high-speed railway high wind disaster prevention equipment | |
| CN110006396A (en) | A kind of tunnel cross-section and limit scanning detection apparatus and method | |
| CN113310425A (en) | Method and equipment for monitoring overall deformation of shield tunnel | |
| CN112067848B (en) | Calibration system and calibration method for high-speed rail strong wind disaster prevention equipment | |
| CN103847764A (en) | Detecting system for vehicle equipment in wireless shunting locomotive signaling and monitoring system | |
| CN111364623A (en) | Building shock insulation support monitoring device and method | |
| CN106871867A (en) | One kind has runed long range subway tunnel structure real-time displacement monitoring system and method for testing | |
| CN107884675A (en) | Monitoring device with transmission line lightning stroke fault location | |
| CN209802295U (en) | Underground safety-oriented full-automatic measuring device | |
| CN210431427U (en) | Optical cable line fault positioning and visualization system based on AI image identification | |
| CN113490272B (en) | UWB positioning-based safe hoisting early warning method, system and medium | |
| CN202582606U (en) | Comprehensive inspection device of high speed railway contact system | |
| CN107091613A (en) | The big part of hydrogenerator is installed, dismantles the accurate measurement in position in hoisting process and alarm method | |
| CN113903154A (en) | Alarm method and system for preventing touch on power transmission line | |
| CN200986749Y (en) | Digitalized training examination room based driver exercising and examining device | |
| CN108106604A (en) | A kind of photogrammetric optical measurement mark method of work and device | |
| CN112985353A (en) | Cable anti-settlement displacement monitoring method and system based on electromagnetic detection | |
| CN102540278A (en) | Online monitoring system for multiple weather parameters | |
| CN111580531A (en) | Unmanned aerial vehicle electricity testing method and device for power transmission line | |
| CN108490218A (en) | Anemoclinograph field calibration system and method based on unmanned air vehicle technique | |
| CN109347962A (en) | A kind of traffic tunnel intelligent and safe management system | |
| CN112525140B (en) | Beidou deformation inspection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |