CN214796195U - Cable force instrument for wireless communication networking by utilizing LR-WiFi technology - Google Patents
Cable force instrument for wireless communication networking by utilizing LR-WiFi technology Download PDFInfo
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- CN214796195U CN214796195U CN202120816198.6U CN202120816198U CN214796195U CN 214796195 U CN214796195 U CN 214796195U CN 202120816198 U CN202120816198 U CN 202120816198U CN 214796195 U CN214796195 U CN 214796195U
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- 238000004891 communication Methods 0.000 title claims abstract description 29
- 230000006855 networking Effects 0.000 title claims abstract description 18
- 238000005516 engineering process Methods 0.000 title claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 230000001133 acceleration Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a cable force instrument for wireless communication networking by utilizing LR-WiFi technology, which comprises a program control amplifier, an analog filter, an AD analog-to-digital converter, a constant voltage source, a built-in high-sensitivity piezoresistive acceleration sensor, a program control amplifier, an analog filter, an AD analog-to-digital converter, a CPU, an LR-WiFi wireless communication module and a computer signal test analysis device which are connected in series in sequence; the program control amplifier, the analog filter, the AD converter and the CPU are sequentially connected with the power supply in parallel; the AD analog-to-digital converter, the power supply, the DDR memory, the GPS, the network output, the TF memory card and the LR-WiFi wireless communication module are sequentially connected with the CPU in parallel. The utility model realizes communication through free networking, can synchronously sample in real time, and has accurate measurement data; the transmission distance between the cable force instrument and the cable force instrument is long, the cascade connection can be realized, and the measurement cost is reduced.
Description
Technical Field
The utility model relates to a cable force detecting instrument technical field especially relates to utilize LR-WiFi technique to carry out the cable force appearance of wireless communication network deployment.
Background
With the rapid development of economy and the continuous improvement of the technological level, world-level bridges are formed one after another, expressways are distributed in every corner of China, cable force monitoring is one of important contents of the health monitoring of the cable-stayed bridges of the expressways, bridge safety detection becomes regular and long-term work, and cable force testing needs to be carried out on the bridges at variable time. LR-WiFi is an abbreviation of Long-distance Wireless Fidelity, and the english language of LR-WiFi is called Long Range Wireless Fidelity, and in the category of Wireless lan, it is "Wireless compatibility authentication", which is actually a commercial authentication, and is also a Wireless networking technology. The computer is connected through a network cable, the network is connected through radio waves at present, a common wireless router is used, and the network can be connected in a WiFi connection mode within the effective range covered by the radio waves of the wireless router. When a traditional cable for wired test is connected with a computer to test an expressway and a large bridge, wiring is very troublesome, and a large amount of manpower and material resources are consumed; or a computer is wirelessly connected with a plurality of wireless cable force instruments in parallel by adopting the traditional wireless communication technology, the wireless test instruments cannot be directly cascaded, the measured range is limited, the direct communication distance between the computer and the instrument is 100m, only objects within 100m of a square circle can be measured, if farther objects need to be tested, the computer and the instrument need to be continuously added, and manpower and material resources are consumed; and the synchronous real-time sampling is difficult to ensure because of the control of a plurality of computers.
Disclosure of Invention
The utility model aims at solving the technical problem and providing a cable force instrument for wireless communication networking by utilizing LR-WiFi technology.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: utilize LR-WiFi technique to carry out cable power appearance of wireless communication network deployment, including program control amplifier, analog filter, AD analog-to-digital converter, its characterized in that: the constant voltage source, the built-in high-sensitivity piezoresistive acceleration sensor, the program control amplifier, the analog filter, the AD analog-to-digital converter, the CPU, the LR-WiFi wireless communication module and the computer signal testing and analyzing device are sequentially connected in series; the program control amplifier, the analog filter, the AD converter and the CPU are sequentially connected with the power supply in parallel; the AD analog-to-digital converter, the power supply, the DDR memory, the GPS, the network output, the TF memory card and the LR-WiFi wireless communication module are sequentially connected with the CPU in parallel.
Preferably: the cable force instrument utilizes LR-WiFi technology to carry out wireless networking, has no central topological structure, adopts a point-to-point mode Ad-Hoc networking mode, and does not have a wireless AP.
Preferably: the constant voltage source model is as follows: TCL 7660; the model of the program control amplifier: an AD 620; analog filter model: OP491 GSZ; AD analog to digital converter model: AD7606 BSTZ-4; CPU type: STM32F103 ZXT; model of LR-WiFi wireless communication module: CV 5200; DDR memory model: IS61WV102416 BLL; GPS model: SV 611.
Compared with the traditional structure, the beneficial effects of the utility model are that:
1. the communication is realized through the free networking, any two cable force instruments can be directly communicated with each other, each computer can control at most 32 cable force instruments, the sampling can be synchronously carried out in real time, and the measured data is more accurate;
2. the transmission distance of the cable force instrument is long, the transmission distance between the cable force instrument and the cable force instrument can reach 1km, cascade connection can be realized, the measurement distance is increased, and the measurement cost is greatly reduced.
Drawings
Fig. 1 is a schematic diagram of the circuit structure of the present invention.
Detailed Description
The present invention will be further explained below.
Referring to the attached drawings, the cable force instrument for wireless communication networking by utilizing an LR-WiFi technology comprises a program control amplifier, an analog filter and an AD analog-to-digital converter, and is characterized in that: the constant voltage source, the built-in high-sensitivity piezoresistive acceleration sensor, the program control amplifier, the analog filter, the AD analog-to-digital converter, the CPU, the LR-WiFi wireless communication module and the computer signal testing and analyzing device are sequentially connected in series; the program control amplifier, the analog filter, the AD converter and the CPU are sequentially connected with the power supply in parallel; the AD analog-to-digital converter, the power supply, the DDR memory, the GPS, the network output, the TF memory card and the LR-WiFi wireless communication module are sequentially connected with the CPU in parallel.
In the preferred embodiment, the cable force instrument utilizes LR-WiFi technology to carry out wireless networking, and has no central topological structure, the networking mode is a point-to-point mode Ad-Hoc, and no wireless AP exists.
In this preferred embodiment, the constant voltage source model is: TCL 7660; the model of the program control amplifier: an AD 620; analog filter model: OP491 GSZ; AD analog to digital converter model: AD7606 BSTZ-4; CPU type: STM32F103 ZXT; model of LR-WiFi wireless communication module: CV 5200; DDR memory model: IS61WV102416 BLL; GPS model: SV 611.
In specific implementation, the wireless networking cascade of the cable force instruments: the built-in LR-WiFi wireless communication module of the cable force instrument enables one cable force instrument to be equivalent to one router, each cable force instrument has a mac address, the cascade connection of the cable force instruments adopts a mode of mutually filling the mac addresses, namely, the first cable force instrument fills the mac address of the second cable force instrument, the second cable force instrument fills the mac address of the first cable force instrument and also fills the mac address of the third cable force instrument, the third cable force instrument fills the mac addresses of the second cable force instrument and the fourth cable force instrument, and the like, so that one computer can control the 32 cable force instruments to work simultaneously. The collected data are checked and stored through a signal testing and analyzing device installed in the computer, and the computer is only connected with a first cable dynamometer through a wireless network card, so that the function of networking the wireless cable dynamometers mutually can be realized.
Sensor power supply: the constant voltage source provides working voltage for the built-in high-sensitivity piezoresistive acceleration sensor. Signal acquisition and processing: the built-in high-sensitivity piezoresistive acceleration sensor outputs signals to the program control amplifier, the signals enter the analog filter after being amplified, irrelevant signals are filtered out, useful signals are converted into digital signals through the AD analog-to-digital converter, and finally the digital signals are output to the computer through the CPU network. CPU central processing unit: the instrument is used as a core for instrument operation and control, is responsible for reading instructions, decoding the instructions and executing the instructions and mainly comprises two parts, namely a controller and an arithmetic unit.
CPU-AD analog-to-digital converter: the CPU central processing unit controls the AD analog-to-digital converter to collect, converts the input analog signal into a digital signal, and then enters the CPU central processing unit.
And the CPU-LR-WIFI wireless communication module converts the signal in the CPU into a wireless signal and sends the wireless signal out.
The LR-WiFi-computer signal test analysis device converts signals in the CPU into wireless signals, sends the wireless signals to the computer signal test analysis device, and controls acquisition through software.
The CPU central processing unit stores the acquired data into the DDR memory, and then sends the data out, if the communication is unstable, the data in the DDR memory is taken out, so that the phenomenon of data loss can not occur even if the communication is interrupted.
GPS: and the synchronous function is used for positioning and synchronous triggering when a plurality of instruments are tested, so that the space-time synchronization is realized. TF memory card: the off-line storage is used for storing the collected data, and the data collected by the instrument is directly stored under the condition of not being connected with a computer. And (3) network output: the computer communicates with the instrument directly via a network.
The above embodiments of the present invention are only examples for clearly illustrating the present invention, but not for limiting the scope of the present invention, and all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (3)
1. Utilize LR-WiFi technique to carry out cable power appearance of wireless communication network deployment, including program control amplifier, analog filter, AD analog-to-digital converter, its characterized in that: the constant voltage source, the built-in high-sensitivity piezoresistive acceleration sensor, the program control amplifier, the analog filter, the AD analog-to-digital converter, the CPU, the LR-WiFi wireless communication module and the computer signal testing and analyzing device are sequentially connected in series; the program control amplifier, the analog filter, the AD converter and the CPU are sequentially connected with the power supply in parallel; the AD analog-to-digital converter, the power supply, the DDR memory, the GPS, the network output, the TF memory card and the LR-WiFi wireless communication module are sequentially connected with the CPU in parallel.
2. The cable force instrument for wireless communication networking by LR-WiFi technology according to claim 1, wherein: the cable force instrument utilizes LR-WiFi technology to carry out wireless networking, has no central topological structure, adopts a point-to-point mode Ad-Hoc networking mode, and does not have a wireless AP.
3. The cable force instrument for wireless communication networking by LR-WiFi technology according to claim 1, wherein: the constant voltage source model is as follows: TCL 7660; the model of the program control amplifier: an AD 620; analog filter model: OP491 GSZ; AD analog to digital converter model: AD7606 BSTZ-4; CPU type: STM32F103 ZXT; model of LR-WiFi wireless communication module: CV 5200; DDR memory model: IS61WV102416 BLL; GPS model: SV 611.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120816198.6U CN214796195U (en) | 2021-04-21 | 2021-04-21 | Cable force instrument for wireless communication networking by utilizing LR-WiFi technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120816198.6U CN214796195U (en) | 2021-04-21 | 2021-04-21 | Cable force instrument for wireless communication networking by utilizing LR-WiFi technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214796195U true CN214796195U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120816198.6U Expired - Fee Related CN214796195U (en) | 2021-04-21 | 2021-04-21 | Cable force instrument for wireless communication networking by utilizing LR-WiFi technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214796195U (en) |
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2021
- 2021-04-21 CN CN202120816198.6U patent/CN214796195U/en not_active Expired - Fee Related
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Granted publication date: 20211119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |