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Intelligent multi-sensor system and working method thereof

A smart sensor and multi-sensor technology, applied in instruments, scientific instruments, liquid level indicators, etc., can solve problems such as data loss, non-reconfigurable, communication failure, etc.

Inactive Publication Date: 2010-05-26
HOHAI UNIV
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Problems solved by technology

[0004](1) Existing hydrological parameter measurement sensors generally do not have the function of group information processing on site, and a hydrological parameter measurement sensor only measures one parameter , the integrated collection and processing of information is transmitted to the central station through the telemetry base station, and then processed in a unified manner. The disadvantage of this is that once the communication fails, data will be lost
[0005](2) The existing wireless-based hydrological parameter measurement sensors do not have a routable method
[0006](3) Existing hydrological parameter measurement sensors generally do not have reconfigurable functions and flexible sensor replacement

Method used

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  • Intelligent multi-sensor system and working method thereof

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Embodiment Construction

[0036] Below in conjunction with accompanying drawing, the technical scheme of invention is described in detail:

[0037] Such as figure 1 As shown, the intelligent multi-sensor system is characterized in that each intelligent sensor node includes a solar power supply unit, a data acquisition unit, an input and output unit, a general interface unit, a microprocessor unit and a communication unit, wherein the data acquisition The unit is composed of a sensor module connected in series with an analog-to-digital conversion module. The microprocessor unit is composed of a microcontroller connected in series with a memory. The communication unit is composed of a radio frequency communication unit and an antenna electrically connected. Connect with the microcontroller, the output terminal of the analog-to-digital conversion module is connected to the input terminal of the microcontroller, the radio frequency communication unit communicates with the microcontroller bidirectionally, a...

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Abstract

The invention discloses an intelligent multi-sensor system and a working method thereof. The system comprises a plurality of intelligent sensor nodes for collecting hydrologic information and a telemetering terminal, wherein the intelligent sensor nodes are communicated with each other and communicated with the telemetering terminal through the collision avoidance multi-carrier channel access (CSMA-CA) mode based on the IEEE802.15.4 standard. The method comprises the following steps: the telemetering terminal is initialized; the telemetering terminal creates the intelligent sensor node as a node in a routing table through a distributed routing mode based on the routing table; when a new intelligent sensor node is added to the sensor system, the telemetering terminal determines the new route by radio PREQs grouping information and updates the routing table; and when the telemetering terminal receives hydrologic parameter data sent by the intelligent sensor node, the received hydrologic parameter data is uploaded to a remote base station through a way station of the Beidou satellite communication. The invention has the advantages of reliable hydrologic monitoring and high validity.

Description

technical field [0001] The invention relates to an intelligent multi-sensor system and working method for collecting and measuring hydrological parameters in a short-distance wireless transmission mode based on multi-carrier channel access (CSMA-CA), and belongs to the field of water conservancy and hydrological measurement systems and automatic monitoring. Background technique [0002] At present, many domestic hydrological stations monitor water level, precipitation, evaporation, flow, water quality and other hydrological parameters measurement sensors or instruments, mainly through wired transmission data, the location and scope of installation and deployment are subject to many restrictions, and a hydrological Parameter measurement sensors only measure one parameter, and generally do not have the function of group information processing on site, resulting in unclear hydrological information collected in some areas, and it is impossible to obtain accurate non-point source ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C13/00G01F23/00G01W1/02H04W40/24H04W84/18
CPCY02A90/30
Inventor 张家华徐立中张振钟云龙叶鹏飞
Owner HOHAI UNIV
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