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Sensor layout optimization and rapid deployment method of wireless vision sensor network

A visual sensor and visual sensing technology, applied in color TV parts, TV system parts, TV and other directions, can solve the problems of small positioning error, large coverage, difficult deployment of visual sensors, etc., to improve the optimization speed , The effect of speeding up network deployment and saving manpower and material resources

Active Publication Date: 2022-04-12
BEIHANG UNIV
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Problems solved by technology

[0003] The invention provides a sensor layout optimization and rapid deployment method of a wireless visual sensor network, which simultaneously considers the requirements of a large coverage area of ​​the visual sensor network and small positioning errors, and solves the problem of difficult deployment of visual sensors in a wide-area space

Method used

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  • Sensor layout optimization and rapid deployment method of wireless vision sensor network
  • Sensor layout optimization and rapid deployment method of wireless vision sensor network
  • Sensor layout optimization and rapid deployment method of wireless vision sensor network

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Embodiment

[0156]The following is the simulation experiment verification based on the method proposed by the present invention. The computer configuration used in the simulation experiment is as follows: Intel(R) Core(TM) i7-6700HQ CPU, main frequency 2.6GHz, memory 8GB; the code is written and run on MATLAB R2017b. According to actual needs, select reasonable environmental parameters, sensor parameters and optimize the objective function, run the simulation program and get the layout scheme. Through empirical judgment and theoretical calculation, analyze whether the optimized layout scheme meets the requirements.

[0157] First, consider the situation where the pose parameters of the target object in the space need to be measured, that is, the sampling points in the target area need to be covered by more than two sensors as much as possible, and the network coverage and the reconstruction accuracy of the target object should be optimized at the same time. Assuming that 4 cameras are us...

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Abstract

The invention discloses a sensor layout optimization and rapid deployment method for a wireless visual sensing network, and the method comprises the following specific steps: 1, building a visual sensing network model which comprises a sensing model, a space model, a coverage model and a reconstruction error model; step 2, coverage rate and reconstruction quality definition; 3, multi-objective optimization overall design is carried out; and 4, quickly deploying the visual sensing network. According to the method, a multi-objective optimization algorithm can be designed in a given three-dimensional space according to the target requirements of large coverage range and small reconstruction error, a reasonable camera layout scheme (including camera positions and azimuth angles) is provided, actual installation and debugging of the cameras are guided, manpower and material resources can be greatly saved, network deployment is accelerated, and the method is suitable for large-scale popularization and application. The dimension reduction search method can solve the problem of sensor layout in any shape space, reduce the number of optimization variables and improve the optimization speed.

Description

technical field [0001] The invention relates to a sensor layout optimization and rapid deployment method of a wireless visual sensor network, belonging to the field of visual sensor layout optimization. Background technique [0002] The wireless visual sensor network is a distributed sensor network formed by multi-camera nodes. Each camera node in the network observes a local area within its field of view, processes the image data locally, and then transmits the calculated final information to the Central node, the final tracking result is calculated by the central node. Compared with wireless sensor networks based on other traditional sensors, visual sensor networks can provide richer and more complete information and anti-interference capabilities; Large and other advantages. Wireless visual sensor networks are widely used, especially in the field of 3D visual tracking, due to their large coverage, simple deployment, and strong pose estimation accuracy and robustness; bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/18H04N5/247H04N7/18H04N23/90
Inventor 全权邓恒吴楠蔡开元
Owner BEIHANG UNIV
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