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Data acquisition method for signal synchronization acquisition system based on WiFi wireless and GPS time service

A technology for signal synchronization and data acquisition, applied in signal transmission systems, wireless communications, time-division multiplexing systems, etc., can solve problems such as unclear technical solutions and inability to implement technical solutions, to increase the range and improve data validity , the effect of downsizing

Active Publication Date: 2019-01-18
YMC PIEZOTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Application publication number CN105487448A, application publication date 2016.04.13, invention titled as a Chinese patent for a sensor data acquisition device based on GPS synchronous timing, although the application mentioned GPS synchronous timing, wireless data transmission, etc., but its specific technology The solution is not clear, and those skilled in the art cannot realize the technical solution at all

Method used

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  • Data acquisition method for signal synchronization acquisition system based on WiFi wireless and GPS time service
  • Data acquisition method for signal synchronization acquisition system based on WiFi wireless and GPS time service
  • Data acquisition method for signal synchronization acquisition system based on WiFi wireless and GPS time service

Examples

Experimental program
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Effect test

Embodiment 1

[0085] A data acquisition method based on a WiFi wireless and GPS timing signal synchronous acquisition system, comprising the following steps:

[0086] a. Distribute a plurality of sensor nodes 1 in different places of the scene according to the actual scene, and configure a WiFi module 2, a power management module 3, a data acquisition module 4 and a GPS module 6 connected with satellite 5 electric signals for each sensor node, and more The sensor nodes 1 form a wireless sensor network through a star network topology;

[0087] b. One of the sensor nodes of multiple sensor nodes 1 is used as a gateway node, and its WiFi mode is set to AP+station mode; other sensor nodes are ordinary sensor nodes, and its WiFi module is set to station mode;

[0088] c. Initialize the I2C communication bus of each sensor node 1;

[0089] d. The general controller MCU unit 7 of the data acquisition module 4 of the sensor node 1 starts to obtain the power information of the power management modu...

Embodiment 2

[0106] A data acquisition method for a signal synchronization acquisition system based on WiFi wireless and GPS timing, comprising the following operation steps:

[0107] a. Distribute the multiple sensor nodes 1 in different places of the scene according to the actual scene, and configure each sensor node with a WiFi module 2, a power management module 3, a data acquisition module 4 and a GPS module 6 connected to the electrical signal of the satellite 5. Each of the sensor nodes 1 forms a wireless sensor network through a star network topology;

[0108] b. Use one of the sensor nodes of the multiple sensor nodes 1 as a gateway node, and set its WiFi mode to AP+station mode; other sensor nodes are ordinary sensor nodes, and set its WiFi module to station mode;

[0109] c. Initialize the I2C communication bus of each sensor node 1;

[0110] d. The general controller MCU unit 7 of the data acquisition module 4 of the sensor node 1 starts to obtain the power information of the ...

Embodiment 3

[0134] In this embodiment, on the basis of Embodiment 2, the wire width of the connecting wire between the RFIO pin of the USR-C216 wireless module and the antenna RF is designed to be 20mil, which is designed according to impedance matching. In this embodiment, the impedance matching design is used to achieve the purpose that all high-frequency microwave signals can be transmitted to the load point, and no signal will be reflected back to the source point, thereby improving energy efficiency.

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Abstract

The invention discloses a data acquisition method for signal synchronization acquisition system based on WiFi wireless and GPS time service, belongs to the technical field of structure health monitoring, and solves the problems that a conventional data collection method is low in efficiency, is not synchronous in data and cannot achieve the synchronous and reliable combination of a wireless transmission mode and GPS. The method mainly comprises a method that a plurality of sensor nodes synchronously collect data at the same time and a method that the sensor nodes transmit the synchronization data to a terminal through a wireless transmission network WiFi. The method provides by the invention is simple in step, is easy to implement, is high in stability, and is of great significance to thefield of structure health monitoring technology.

Description

technical field [0001] The invention belongs to the technical field of structural health monitoring, and specifically relates to a real data synchronization, low layout cost, simple acquisition method steps, stable and reliable acquisition method, modularized and simplified node circuit design, and high stable performance The data acquisition method of the signal synchronous acquisition system based on WiFi wireless and GPS timing. Background technique [0002] At present, in the data acquisition part of the structural health monitoring of large buildings, the distributed signal acquisition method is mostly based on wired sensor nodes, and basically uses the system clock to maintain the synchronization of data acquisition. Compared with this acquisition method based on wired equipment, it is very Obviously, the traditional collection method has the following disadvantages: wired sensor nodes limit the scope of data collection, and the manpower consumption is serious and inef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/38H04W84/18G08C17/02H04J3/06
CPCG08C17/02H04J3/0638H04W84/18H04W4/38
Inventor 谭荣龙许飞云陈启山江煜
Owner YMC PIEZOTRONICS
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