Vegetation structure parameter measurement device based on wireless sensor network

A technology of wireless sensors and structural parameters, applied in measurement devices, network topology, wireless communication, etc., can solve problems such as unusability and limited use conditions, and achieve the effect of reducing image classification errors and reducing data storage capacity.

Inactive Publication Date: 2010-09-22
BEIJING NORMAL UNIVERSITY +1
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Problems solved by technology

The conditions of use of the device described in this patent are limited in the forest environment, and a large gap under the forest is required to place the device
It cannot be used in low vegetation or continuous distribution vegetation, such as crops and grassland

Method used

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  • Vegetation structure parameter measurement device based on wireless sensor network
  • Vegetation structure parameter measurement device based on wireless sensor network
  • Vegetation structure parameter measurement device based on wireless sensor network

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Embodiment Construction

[0030] A kind of vegetation canopy structure parameter measurement device based on wireless sensor network of the present invention, comprises the wireless sensor network that is arranged in the upper space of research area canopy and lower space and the wireless sensor network that routing node 2 forms; Convergence node 3 and control Data processing and node control system composed of terminal and remote server.

[0031] Wherein, the measurement node 1 is composed of a photosensor for measuring the sun's transmitted radiation up and down the canopy, a data storage unit for temporary data storage, a real-time clock for providing acquisition time, and a wireless communication networking and The core chip of the node control operation and the power supply unit. The measurement node 1 is connected to the routing node 2 through wireless communication. Routing node 2 is the same as measuring node 1 in terms of hardware, but the protocol stack invoked on the driver is different. Th...

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Abstract

The invention relates to a vegetation structure parameter measurement device based on a wireless sensor network. The device is formed by the wireless sensor network and a data processing and node control system, wherein the wireless sensor network is formed by measurement nodes distributed at the upper part and the lower part of the canopy of a study area and routing nodes, and the data processing and node control system is formed by a convergent node and a control terminal remote server in a connecting way; the measurement nodes obtain vegetation parameter information through acquiring the solar radiation of the upper part and the lower part of the canopy at different solar altitudes in one day, and conducts data transmission and positioning through a wireless ad hoc network; the convergent node can upload the data of the measurement nodes to a control terminal through serial ports and GPRS, and vegetation structure parameters are computed through a data processing system; and the control terminal sends commands to the nodes through the convergent node to modify parameter setting. The invention has the advantages that the volume is small, the power consumption is low, the deployment is convenient and the cost is low, the device is suitable for large-area and long-period vegetation parameter measurement, and the practical value and the application prospect are wide in agriculture, ecology and the wireless sensor network technical field.

Description

(1) Technical field [0001] The invention relates to a device for measuring vegetation canopy structure parameters based on a wireless sensor network, which is related to the data collection of vegetation canopy structure parameters and belongs to the technical fields of agriculture and ecology and wireless sensor networks. (2) Technical background [0002] Vegetation canopy structure parameters are an important index to study the growth and development state of vegetation, and also an important correlation parameter that restricts the model of land-atmosphere interaction process. Therefore, accurate acquisition of vegetation structure parameters is an urgent need to promote land surface model modeling and model verification. [0003] The vegetation structure parameters mentioned in the present invention refer to the vegetation canopy leaf area index (Leaf Area Index, LAI) and leaf inclination angle probability density function. [0004] The acquisition methods of vegetation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/00H04W84/18
Inventor 屈永华王锦地姜富斌董健吕耘帙焦思红
Owner BEIJING NORMAL UNIVERSITY
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