Automatic deployment method of wireless sensor network based on zero communication

Abstract

The invention provides an automatic network deployment method of a wireless sensor based on zero communication, which comprises the following steps: building a grid coordinate as per a deployed target area, wherein a starting point of the deployment is the origin of the grid coordinate, the vertex positions in the grid coordinate are used for deploying nodes of the wireless sensor; obtaining a current point of the deployment; obtaining a front point of the deployment as per the current point; judging whether the current point is a backtracking point, and adding the current point to a preset backtracking stack if the current point is the backtracking point; backtracking the deployment position to the newly added backtracking point in the backtracking stack if the deployment encounters a dead corner. According to the invention, the quick, efficient and correct automatic deployment can be realized, and energy expense in the deploying is reduced.

Description

technical field [0001] The invention relates to the field of wireless sensor networks, in particular to a zero-communication-based automatic deployment method for wireless sensor networks. Background technique [0002] Wireless sensor networks are widely used in applications such as environmental monitoring, traffic supervision, behavior analysis, and intrusion detection. Usually, a wireless sensor network works in a specific target area (Region of Interest, ROI). Limited to specific application backgrounds, the target areas are often unfamiliar, inaccessible or high-risk areas, such as post-disaster areas, virgin forests, or even battlefields. In these applications, sensors can only be released from safe locations by aircraft or robots, and form a network topology that satisfies certain node density, coverage, and other conditions—and this is difficult to accomplish through the sensors themselves. Therefore, it is necessary to automatically deploy sensors to achieve a cer...

AI Technical Summary

Problems solved by technology

[0006] In the airborne deployment method, since the target area may have irregular boundaries, unknown obstacles, etc., even if the robot can detect the boundaries and obstacles, its deployment process may be disturbed or even blocked

At the same time, since the target robot does not have full knowledge of the network, it is difficult to guarantee full coverage, self-termination and high performance at the same time.

The vast majority of currently available airborne deployment methods do not guarantee full coverage, are self-terminating, and all rely on communication and collaboration between sensor nodes and between robots and sensors

This not only brings high energy consumption and shortens the overall working life of the sensor network, but also reduces the tolerance of the deployment process to single point failures.

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