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Mobile sensor intelligent track design method based on sustainable data acquisition

A mobile sensor, trajectory design technology, applied in the direction of location-based services, specific environment-based services, electrical components, etc., can solve problems affecting the data throughput of sensor networks, etc.

Active Publication Date: 2021-09-07
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, the environmental energy acquired by wireless sensors is usually unknown, and the corresponding energy harvesting process has random and dynamic characteristics. These uncertainties will affect the long-term key factors such as data throughput, sensing coverage, and data transmission of sensor networks. performance

Method used

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  • Mobile sensor intelligent track design method based on sustainable data acquisition
  • Mobile sensor intelligent track design method based on sustainable data acquisition
  • Mobile sensor intelligent track design method based on sustainable data acquisition

Examples

Experimental program
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Embodiment 1

[0050] This embodiment provides a mobile sensor intelligent trajectory design method based on sustainable data collection, such as figure 1 shown, including steps:

[0051] S1. The mobile sensor collects energy from the surrounding environment and uses the collected energy for its own movement and data transmission;

[0052] S2. Construct a model between energy harvesting and data transmission based on Markov decision;

[0053] S3. Use the deep deterministic strategy gradient algorithm to solve the constructed model, and obtain the optimal joint trajectory movement and power allocation strategy corresponding to the energy.

[0054] In step S1, the mobile sensor collects energy from the surrounding environment, and uses the collected energy for its own movement and data transmission.

[0055] The function of the mobile sensor in this embodiment is to collect energy around the environment, and use the collected energy for its own movement, so that it can collect surrounding data...

Embodiment 2

[0120] The difference between the intelligent trajectory design method for mobile sensors based on sustainable data collection provided in this embodiment and the first embodiment is that:

[0121] This embodiment mainly verifies the effectiveness of the proposed training algorithm.

[0122] Set a 10×10 two-dimensional Cartesian coordinates, where (x,y) represents the position (x, y∈[0,10]) on the two-dimensional plane. Energy 1 and Energy 2 are located at (0,10) and (0,0) respectively. MS can reposition in this area to find a better location for energy collection and data transmission. The moving speed and angle are limited to [0,1], [-π / 2,π / 2], where μ and σ represent energy The mean and variance of the random distribution, δ represents the movement consumption of the mobile sensor (that is, energy δ is consumed every time a certain distance is moved). Next, the effectiveness of the proposed training algorithm (Algorithm 1) is verified by detecting the motion trajectory le...

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Abstract

The invention discloses a mobile sensor intelligent track design method based on sustainable data acquisition, which comprises the following steps: S1, enabling a mobile sensor to collect energy from a surrounding environment, and use the collected energy for self movement and data transmission; S2, constructing a model between energy collection and data transmission based on Markov decision; and S3, solving the constructed model by adopting a depth deterministic strategy gradient algorithm to obtain a power distribution strategy corresponding to the optimal combined trajectory movement and energy. Aiming at the goal of maximizing long-term average data collection throughput, an algorithm is designed, so that a sensor can intelligently track an optimal arrival point under each time slot in a whole two-dimensional space region under the condition that environmental energy is unknown, and then maximum energy collection and data transmission are carried out at the time slot.

Description

technical field [0001] The invention relates to the technical field of wireless information transmission, in particular to an intelligent trajectory design method for mobile sensors based on sustainable data collection. Background technique [0002] Wireless Sensor Networks (WSN) is a distributed sensor network whose ends are sensors that can perceive and inspect the outside world. The sensors in the WSN communicate wirelessly, so the network setting is flexible, the location of the device can be changed at any time, and it can also be connected to the Internet in a wired or wireless manner. Each node in the network has sensors, which are often used in scenarios such as ecological environment monitoring, smart security patrols, and forest temperature and humidity data collection. However, the data collected by each node of the sensor network usually faces many challenges during data transmission. Challenges, because the capacity of sensor nodes is limited and the area where...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/029H04W4/38H04W64/00H04W84/18
CPCH04W4/029H04W4/38H04W64/00H04W84/18
Inventor 贾日恒张秀铃林飞龙郑忠龙
Owner ZHEJIANG NORMAL UNIVERSITY
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