CN219369793U - Multi-point wind speed measurement and data acquisition device and system - Google Patents

Multi-point wind speed measurement and data acquisition device and system Download PDF

Info

Publication number
CN219369793U
CN219369793U CN202320492025.2U CN202320492025U CN219369793U CN 219369793 U CN219369793 U CN 219369793U CN 202320492025 U CN202320492025 U CN 202320492025U CN 219369793 U CN219369793 U CN 219369793U
Authority
CN
China
Prior art keywords
wind speed
acquisition instrument
speed acquisition
anemometer
instrument
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
Application number
CN202320492025.2U
Other languages
Chinese (zh)
Inventor
冯静慧
蔡维维
刘文逸
陈隆
姚玉梅
赵杰
陈杰
徐优庆
陈姿先
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Jianke Fire Protection Technology Co ltd
Original Assignee
Shanghai Jianke Fire Protection Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Jianke Fire Protection Technology Co ltd filed Critical Shanghai Jianke Fire Protection Technology Co ltd
Priority to CN202320492025.2U priority Critical patent/CN219369793U/en
Application granted granted Critical
Publication of CN219369793U publication Critical patent/CN219369793U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/10Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Landscapes

  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

The utility model relates to a multipoint wind speed measurement and data acquisition device and system, and belongs to the technical field of wind speed measurement. The device comprises a first wind speed acquisition instrument, a second wind speed acquisition instrument and a plurality of wind speed meters, wherein the first wind speed acquisition instrument is connected with a computer and is used for sending digital quantity signals to the computer; the second wind speed acquisition instrument is connected with the first wind speed acquisition instrument and is used for converting the analog quantity signal into a digital quantity signal and transmitting the digital quantity signal to the first wind speed acquisition instrument; one end of the anemometer is connected with a to-be-measured point and used for acquiring analog quantity data of real-time wind speed of the to-be-measured point, the other end of the anemometer is connected with a second wind speed acquisition instrument and used for transmitting the analog quantity data to the second wind speed acquisition instrument, in a signal transmission process, the second wind speed acquisition instrument uniformly transmits analog quantity signals transmitted by all the anemometers connected with the second wind speed acquisition instrument to the first wind speed acquisition instrument, and the first wind speed acquisition instrument respectively transmits received digital quantity signals from different second wind speed acquisition instruments to a computer.

Description

Multi-point wind speed measurement and data acquisition device and system
Technical Field
The utility model relates to the technical field of wind speed measurement, in particular to a multipoint wind speed measurement and data acquisition device and system.
Background
Along with the promotion of the national modernization progress, more and more tunnel-like buildings are appeared in cities and suburbs, such as urban traffic tunnels, pedestrian tunnels, municipal tunnels, engineering tunnels, military tunnels and the like, in order to meet various development demands.
In tunnel construction such as this, there are disadvantages such as airtight environment, complicated structure, long and narrow passage, and difficulty in ventilation, which are extremely liable to cause accidents. Therefore, in the tunnel building, a wind speed detection device is generally arranged for detecting whether the wind speed in the tunnel building is within a safe range, so that when the wind speed in the tunnel is too fast or too slow, the wind speed is timely adjusted through an exhaust system or other ventilation systems, and accidents are prevented. Because the single-point wind speed cannot accurately represent the average wind speed of the whole section in the tunnel, the average wind speed of the section is generally obtained by measuring a plurality of points to be measured.
However, the conventional wind speed measurement technology can only measure the average wind speed of one area at the same time, and when the average wind speed of a plurality of areas needs to be measured, a plurality of wind speed measurement devices need to be measured one by one or started.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a multipoint wind speed measurement and data acquisition device and system capable of measuring the average value of wind speeds in a plurality of areas at the same time.
A multi-point wind speed measurement and data acquisition device comprising:
the first wind speed acquisition instrument is connected with the computer and is used for sending digital quantity signals to the computer;
the second wind speed acquisition instruments are connected with the first wind speed acquisition instruments and are used for converting analog quantity signals into digital quantity signals and sending the digital quantity signals to the first wind speed acquisition instruments;
one end of each anemometer is connected with a to-be-measured point and used for acquiring analog quantity data of real-time wind speed of the to-be-measured point, and the other end of each anemometer is connected with the second wind speed acquisition instrument and used for sending the analog quantity data to the second wind speed acquisition instrument;
the second wind speed acquisition instrument uniformly transmits analog quantity signals transmitted by all the wind speed instruments connected with the second wind speed acquisition instrument to the first wind speed acquisition instrument, and the first wind speed acquisition instrument respectively transmits the received digital quantity signals from different second wind speed acquisition instruments to the computer.
In one embodiment, the other end of the anemometer is connected to the second anemometer or the first anemometer, and the first anemometer is further configured to convert an analog quantity signal into a digital quantity signal.
In one embodiment, the first wind speed acquisition instrument is internally provided with a direct current power supply, and the wind speed meter and the second wind speed acquisition instrument are powered by the first wind speed acquisition instrument in a centralized way.
In one embodiment, the anemometer is a thermal wind speed sensor having a range of measurement from 0 to 25 meters per second.
In one embodiment, the first wind speed collector is an eight-channel analog-to-digital converter and the second wind speed collector is an eight-channel analog-to-digital converter or a thirty-two-channel analog-to-digital converter.
In one embodiment, the multipoint wind speed measurement and data acquisition device further comprises an acquisition box, wherein the interior of the acquisition box is hollow and is used for storing the first wind speed acquisition instrument or the second wind speed acquisition instrument, and the surface of the acquisition box is further provided with a plurality of through holes.
In one embodiment, the surface of the collection box further has a plurality of receiving holes for receiving the anemometer.
In one embodiment, the multipoint wind speed measuring and data collecting device further comprises a portable case, wherein the portable case is hollow and is used for accommodating the collecting case and the connecting wires.
The multi-point wind speed measurement and data acquisition system comprises a multi-point wind speed measurement and data acquisition device and a computer, wherein the computer is connected with the first wind speed acquisition instrument and is used for acquiring and displaying digital quantity signals.
According to the multipoint wind speed measurement and data acquisition device and system, the anemometers acquire analog quantity signals of real-time wind speeds of points to be measured and transmit the analog quantity signals to the first wind speed acquisition meters through the second wind speed acquisition meters, so that the analog quantity signals are converted into digital quantity signals and transmitted to the computer, in the signal transmission process, the second wind speed acquisition meters uniformly transmit the analog quantity signals transmitted by all the anemometers connected with the second wind speed acquisition meters to the first wind speed acquisition meters, the first wind speed acquisition meters respectively transmit the received digital quantity signals from different second wind speed acquisition meters to the computer, and each second wind speed acquisition meter corresponds to one area to be measured through expansion connection of the first wind speed acquisition meters and the second wind speed acquisition meters, so that the wind speeds of a plurality of areas can be measured and calculated simultaneously, and the data of each area can be displayed more clearly and intuitively at the computer.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a multi-point wind speed measurement and data acquisition device according to one embodiment of the present application;
FIG. 2 is a schematic view of a collection box according to an embodiment of the present application;
fig. 3 is a schematic view of a portable case according to an embodiment of the present application.
Reference numerals:
100. a first wind speed acquisition instrument; 200. a second wind speed acquisition instrument; 300. an anemometer; 400. a collection box; 410. a through hole; 420. a receiving hole; 500. a portable case; 600. a computer; 700. and (5) connecting wires.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and the like are used in the description of the present utility model for the purpose of illustration only and do not represent the only embodiment.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.
Unless defined otherwise, all technical and scientific terms used in the specification of the present utility model have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in the description of the present utility model includes any and all combinations of one or more of the associated listed items.
The multi-point wind speed measurement and data acquisition device and system of the present utility model are described below with reference to FIGS. 1-2.
As shown in FIG. 1, in one embodiment, a multi-point wind speed measurement and data acquisition device comprises a first wind speed acquisition instrument 100, a second wind speed acquisition instrument 200 and a plurality of wind speed meters 300, wherein the first wind speed acquisition instrument 100 is connected with a computer 600 for transmitting digital quantity signals to the computer 600; the second wind speed acquisition instrument 200 is connected with the first wind speed acquisition instrument 100, and is used for converting an analog quantity signal into a digital quantity signal and transmitting the digital quantity signal to the first wind speed acquisition instrument 100; one end of the anemometer 300 is connected to a point to be measured for obtaining analog data of real-time wind speed of the point to be measured, and the other end is connected to the second wind speed acquisition instrument 200 for transmitting the analog data to the second wind speed acquisition instrument 200.
Specifically, the first wind speed collector 100 and the second wind speed collector 200 are analog-to-digital converters with built-in processors, and the first wind speed collector 100 and the second wind speed collector 200 are distinguished by different objects of the transmitted signals, wherein the first wind speed collector 100 transmits the digital quantity signal to the computer 600, and the second wind speed collector 200 transmits the digital quantity signal to the first wind speed collector 100.
In actual measurement, the second wind speed collector 200 is numbered, for example, the average wind speed of each floor in a certain building is measured, wherein the second wind speed collector 200 connected with the anemometer 300 for measuring the wind speed of the first building is marked as one, the second wind speed collector 200 connected with the anemometer 300 for measuring the wind speed of the second building is marked as two, and the like, so that the average wind speed data of each floor can be displayed more clearly and intuitively at the computer 600. Besides, the method is also suitable for a series of wind speed measurement fields such as measurement and collection of average wind speeds of a plurality of sections in the tunnel.
It should be noted that, the number of the second wind speed collectors 200 should be changed according to the number of the points to be measured, so the device is also suitable for the situation that the distribution of the points to be measured is wider and the number is larger.
In the above multi-point wind speed measurement and data acquisition device, the anemometer 300 acquires analog signals of real-time wind speed at a point to be measured, and transmits the analog signals to the first wind speed acquisition meter 100 through the second wind speed acquisition meter 200, so as to convert the analog signals into digital signals and send the digital signals to the computer 600, in the signal transmission process, the second wind speed acquisition meter 200 uniformly sends the analog signals sent by all the anemometers 300 connected with the second wind speed acquisition meter to the first wind speed acquisition meter 100, the first wind speed acquisition meter 100 respectively sends the received digital signals from different second wind speed acquisition meters 200 to the computer 600, and each second wind speed acquisition meter 200 corresponds to one area to be measured through expansion connection of the first wind speed acquisition meter 100 and the second wind speed acquisition meter 200, so that the wind speeds of a plurality of areas can be measured and calculated simultaneously, and the data of each area can be displayed more clearly and intuitively at the computer 600.
In the present embodiment, the other end of the anemometer 300 is connected to the second anemometer 200 or the first anemometer 100, and the first anemometer 100 is further configured to convert an analog quantity signal into a digital quantity signal. Specifically, in practical applications, the first anemograph 100 and the second anemograph 200 have a plurality of expansion interfaces for connecting other components (such as the computer 600 and the anemometer 300), and if the number of to-be-measured points does not exceed the number of expansion interfaces on the first anemograph 100, the anemometer 300 can be directly connected to the first anemograph 100 to directly read the wind speed of the to-be-measured point.
In the present embodiment, the first anemometer 100 is built with a dc power supply, and the anemometer 300 and the second anemometer 200 are powered by the first anemometer 100 in a centralized manner. Specifically, through setting up 24V's DC power supply in first wind speed collection appearance 100 inside, unify the power supply to the device, need not external power supply, convenient on-the-spot fast-assembling installation.
In this embodiment, anemometer 300 is a thermal wind speed sensor having a range of measurement from 0 to 25 meters per second. Specifically, the types of anemometers 300 selected for different measurement environments are different, and the thermal anemometer is a common anemometer 300, so that the wind speed measurement of most situations can be satisfied. The thermal wind speed sensor used in the embodiment has the measuring range of 0 to 25 m/s, the signal output of 4 to 20 mA, the output precision of 0.5 percent, the resolution of 0.05 m/s and the working environment of minus 5 to 60 ℃. When the anemometer 300 of this specification is adopted, the overall acquisition accuracy of the device is ±0.5% and the resolution is 0.01 meters per second.
In the present embodiment, the first wind speed collector 100 is an eight-channel analog-to-digital converter, and the second wind speed collector 200 is an eight-channel analog-to-digital converter or a thirty-two-channel analog-to-digital converter. Specifically, the eight-way analog-to-digital converter has eight expansion interfaces, and the thirty-two-way analog-to-digital converter has thirty-two expansion interfaces, namely, the first wind speed collector 100 can be simultaneously connected with at most eight second wind speed collectors 200, the second wind speed collectors 200 can be simultaneously connected with the first wind speed collector 100 and also can be connected with seven or thirty-one anemometers 300, that is, the device can change the number of points to be measured, which are measured simultaneously, by replacing analog-to-digital converters of different ways within the bearable range of the computer 600. In general, in actual measurement, simultaneous measurement of one hundred sixty points to be measured can be satisfied.
As shown in fig. 2, in the present embodiment, the multi-point wind speed measurement and data acquisition device further includes an acquisition box 400, wherein the inside of the acquisition box 400 is hollow for storing the first wind speed acquisition instrument 100 or the second wind speed acquisition instrument 200, and the surface of the acquisition box 400 further has a plurality of through holes 410. Specifically, according to the different specifications of the first wind speed acquisition instrument 100 and the second wind speed acquisition instrument 200, the acquisition boxes 400 with corresponding specifications are respectively designed to prevent the first wind speed acquisition instrument 100 or the second wind speed acquisition instrument 200 from being damaged due to collision during transportation. The surface of the collection box 400 is provided with a plurality of through holes 410, and the number of the through holes 410 is the same as that of the expansion interfaces of the first wind speed collection instrument 100 or the second wind speed collection instrument 200, so that the expansion interfaces penetrate through the through holes 410, and the connection of the anemometer 300 is facilitated.
In the present embodiment, the surface of the collection box 400 further has a plurality of receiving holes 420, and the receiving holes 420 are used for receiving the anemometer 300. Specifically, the accommodating hole 420 is a blind hole, and the inner diameter and the length of the accommodating hole 420 are adapted to the anemometer 300, so as to accommodate the anemometer 300, and the anemometer is integrally carried and prevented from being lost. The number of the storage holes 420 is consistent with the number of the expansion interfaces on the first wind speed acquisition instrument 100 or the second wind speed acquisition instrument 200 stored in the acquisition box 400.
As shown in fig. 3, in the present embodiment, the apparatus further includes a portable case 500, and the interior of the portable case 500 is hollow for accommodating the collection case 400 and the connection wire 700. Specifically, the connection line 700 is a data line for connecting two members, such as between the first anemometer 100 and the second anemometer 200, between the second anemometer 200 and the anemometer 300, between the first anemometer 100 and the anemometer 300, and between the first anemometer 100 and the computer 600. The collection box 400 is fixedly installed in the portable box 500, the anemometer 300 is fixedly stored in a blind hole on the collection box 400, the connecting wire 700 is stored in the residual space in the portable box 500, and the portable box is integrally carried and prevented from being lost. The protection level of the external materials selected for the collection box 400 and the portable box 500 is IP65, so that foreign objects and dust can be prevented from entering, and water can be prevented from entering. The portable case 500 may be used with a case cover.
In one embodiment, a multi-point wind speed measurement and data acquisition system includes a multi-point wind speed measurement and data acquisition device and a computer 600, the computer 600 being connected to a first wind speed acquisition instrument 100 for acquiring and displaying digital quantity signals. Specifically, the computer 600 is equipped with acquisition software that is conventional in the industrial field, and when the first wind speed acquisition instrument 100 is connected, the computer 600 can receive digital quantity signals and store data at a frequency of 1 time per second, and simultaneously displays real-time wind speed curves of various points to be measured on a screen of the computer 600 in real time, and can schedule a historical wind speed curve.
It should be noted that, the collection software installed in the computer 600 may export the data into a table format, such as an Excel table.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (9)

1. A multi-point wind speed measurement and data acquisition device, comprising:
the first wind speed acquisition instrument is connected with the computer and is used for sending digital quantity signals to the computer;
the second wind speed acquisition instruments are connected with the first wind speed acquisition instruments and are used for converting analog quantity signals into digital quantity signals and sending the digital quantity signals to the first wind speed acquisition instruments;
one end of each anemometer is connected with a to-be-measured point and used for acquiring analog quantity data of real-time wind speed of the to-be-measured point, and the other end of each anemometer is connected with the second wind speed acquisition instrument and used for sending the analog quantity data to the second wind speed acquisition instrument;
the second wind speed acquisition instrument uniformly transmits analog quantity signals transmitted by all the wind speed instruments connected with the second wind speed acquisition instrument to the first wind speed acquisition instrument, and the first wind speed acquisition instrument respectively transmits the received digital quantity signals from different second wind speed acquisition instruments to the computer.
2. The multipoint wind speed measurement and data acquisition device according to claim 1, wherein the other end of the anemometer is connected to the second wind speed acquisition instrument or the first wind speed acquisition instrument, the first wind speed acquisition instrument further being configured to convert analog quantity signals into digital quantity signals.
3. The multipoint wind speed measurement and data acquisition device according to claim 1, wherein the first wind speed acquisition instrument is provided with a direct current power supply, and the wind speed meter and the second wind speed acquisition instrument are powered by the first wind speed acquisition instrument in a centralized manner.
4. The multipoint wind speed measurement and data acquisition device according to claim 1, wherein the anemometer is a thermal wind speed sensor having a range of 0 to 25 meters per second.
5. The multi-point wind speed measurement and data acquisition device of claim 1, wherein the first wind speed acquisition instrument is an eight-channel analog-to-digital converter and the second wind speed acquisition instrument is an eight-channel analog-to-digital converter or a thirty-two-channel analog-to-digital converter.
6. The multi-point wind speed measurement and data acquisition device of claim 1, further comprising an acquisition box, wherein the interior of the acquisition box is hollow for storing the first wind speed acquisition instrument or the second wind speed acquisition instrument, and the surface of the acquisition box is further provided with a plurality of through holes.
7. The multipoint wind speed measurement and data collection device of claim 6, wherein the surface of the collection box further has a plurality of receiving holes for receiving the anemometer.
8. The multipoint wind speed measurement and data collection device according to claim 7, further comprising a portable case having a hollow interior for receiving the collection case and connecting wires.
9. A multi-point wind speed measurement and data acquisition system comprising a multi-point wind speed measurement and data acquisition device according to any one of claims 1 to 8 and a computer connected to the first wind speed acquisition instrument, the computer being adapted to acquire and display digital quantity signals.
CN202320492025.2U 2023-03-15 2023-03-15 Multi-point wind speed measurement and data acquisition device and system Active CN219369793U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320492025.2U CN219369793U (en) 2023-03-15 2023-03-15 Multi-point wind speed measurement and data acquisition device and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320492025.2U CN219369793U (en) 2023-03-15 2023-03-15 Multi-point wind speed measurement and data acquisition device and system

Publications (1)

Publication Number Publication Date
CN219369793U true CN219369793U (en) 2023-07-18

Family

ID=87118069

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320492025.2U Active CN219369793U (en) 2023-03-15 2023-03-15 Multi-point wind speed measurement and data acquisition device and system

Country Status (1)

Country Link
CN (1) CN219369793U (en)

Similar Documents

Publication Publication Date Title
CN204007499U (en) A kind of novel bridge structural deflection automatic monitoring system
CN202003499U (en) Static data acquisition system based on wireless data transmission
KR20040004232A (en) Telemetry measurement system for short and long term infrastructure monitoring
CN108489449A (en) A kind of measuring system and method for continuously monitoring tunnel convergence
CN107478326A (en) A kind of multichannel audible noise synchronized measurement system and method
CN202956491U (en) Hand-held GPS (Global Position System) forest meteorological instrument
CN106768061A (en) A kind of shaft tower monitoring system
CN219369793U (en) Multi-point wind speed measurement and data acquisition device and system
CN113390385B (en) Gas pipeline strain monitoring and early warning system and method based on displacement sensor
CN202018518U (en) Multi-parameter online climate monitoring system
RU68714U1 (en) DEVICE FOR AUTOMATED REMOTE ENVIRONMENTAL MONITORING
CN219391155U (en) Multi-point temperature measurement and data acquisition device and system
CN208589132U (en) A kind of wireless transmissioning monitoring device based on multi-functional self-organizing sensor
CN203249616U (en) Bridge flexibility data collecting and monitoring system based on GPRS network
CN208367029U (en) A kind of mobile wind measuring device for Along Railway
CN206096510U (en) Island reef atmospheric boundary layer underlying structure and extra large gas flux exchange observation tower
CN112525140B (en) Beidou deformation inspection system
CN101915945A (en) Rain gauge for measuring multiple parameters such as pH
CN110826141B (en) Low-cost automatic test method for tower linear type and application test system thereof
CN210864084U (en) Multifunctional measuring meteorological instrument
CN207779382U (en) A kind of bridge deflection measurement system based on wireless transmission
CN209910846U (en) Temperature measuring system of cooling tower
CN103175666A (en) Site acquisition device of deflection data for bridge monitoring
CN202002918U (en) Remote pollution source monitoring system
CN207779375U (en) A kind of bridge pier inclined angle monitoring system based on wireless transmission

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant