Wireless monitoring network dynamic synchronous acquisition method based on comprehensive sensitive event driving
A technology for monitoring networks and sensitive events, applied in signal transmission systems, instruments, etc., can solve problems such as large influence of sensor terrain, difficulty in time synchronization accuracy, frequent power-on of modules, etc., to achieve convenient system wiring, low power consumption, and layout easy effect
Inactive Publication Date: 2017-05-10
SOUTHWEAT UNIV OF SCI & TECH
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Problems solved by technology
This control algorithm is relatively easy to implement, but each module is powered on frequently, and the power consumption of the system is high
[0003] At present, the acquisition station and each sensor module mainly use wired communication (such as RS485 bus, etc.), which is relatively easy in software program design, but it is greatly affected by the terrain when actually deploying sensors, and wireless networks can better solve the problem. this problem
The time synchronization accuracy of traditional wireless communication methods is relatively difficult, and it is difficult to meet the needs
Method used
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Embodiment 1
[0029] Embodiment 1: see figure 1 , figure 2 , a dynamic synchronous collection method for a wireless monitoring network driven by comprehensive sensitive events, comprising the following steps:
[0030] (1) Establish a monitoring system. The monitoring system includes a collection unit, a collection station and a monitoring terminal. The collection unit includes several displacement sensors, several inclination sensors, a water level sensor, and an interval rainfall sensor. All sensors pass ZigBee The interface is connected with the collection station, and the collection station obtains communication with each sensor through the ZigBee network, and communicates with the monitoring terminal through the GSM module;
[0031] (2) Install a detection system at the monitoring site, which includes at least one ground fissure and a monitoring well connected to groundwater, and install one or more ground fissure sensors at both ends of the crack according to the length of the ground...
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The invention discloses a wireless monitoring network dynamic synchronous acquisition method based on comprehensive sensitive event driving. The method comprises the following steps: (1) a monitoring system is established; (2) a detection system is mounted at a monitoring site; (3) the monitoring system is started, data for the first time acquired by sensors is read, X1-X4 are defined, proportionality coefficients a, b, c and d for the first time are distributed for X1, X2, X3 and X4 respectively, wherein a is the largest, and the sum of the proportionality coefficients is 1; (4) a judging parameter F is set according to X1-X4 and the proportionality coefficients, a threshold of F is set, and the system does not upload slip mass information when F is smaller than the threshold; a GSM module is waken up to upload data when F is larger than or equal to the threshold, and a power supply is shut down after unloading. Power-on acquisition time of each sensor is distributed according to the influence degree of sensor events on landslide, weighted summation is performed on data of the sensors, and occurrence of sensitive event is affirmed and data is uploaded when the sum exceeds the threshold.
Description
technical field [0001] The invention relates to a landslide data collection method, in particular to a dynamic synchronous collection method for a wireless monitoring network driven by comprehensive sensitive events. Background technique [0002] my country has a vast territory and is a country where geological disasters occur frequently. A large number of geological disasters have great harm to the safety of people's lives and property. Among all kinds of geological disasters, landslide disasters account for the largest proportion, so the monitoring of landslides is very necessary. Landslides often have some omens before landslides occur, including: groundwater level changes, rainfall changes, surface crack changes, and deep displacement changes; use the corresponding sensors to collect the above data and make risk judgments in the collection station to determine Whether to upload data. The traditional monitoring algorithm is to regularly power on each module of the syste...
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IPC IPC(8): G08C17/02
CPCG08C17/02
Inventor 石繁荣庹先国李怀良荣文钲江山
Owner SOUTHWEAT UNIV OF SCI & TECH