A data acquisition method for underwater sensors based on underwater vehicles
An underwater vehicle and underwater sensor technology, which is applied in the services, network topology, electrical components and other directions based on a specific environment, can solve the problem of long time, short service life of underwater sensor network, and exhaustion of underwater sensor node energy. and other problems to achieve the effect of good communication quality
Active Publication Date: 2021-11-23
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
For an underwater sensor network with a large number of nodes and a wide coverage area, when the underwater sensor node and the surface sink node cannot communicate directly, it is necessary to rely on the intermediate underwater sensor node to relay and forward data, which will easily cause the intermediate underwater sensor Problems such as node energy depletion, short service life of underwater sensor network, etc.
[0004] Some studies have proposed a method that uses underwater vehicles to traverse the corresponding underwater sensor nodes, collect the data of underwater sensor nodes at close range, and then return to the water surface, and transmit the data to the water surface sink node by means of wireless communication. This method can fully save the energy consumption of the corresponding underwater sensor nodes, but due to the limited movement speed of the underwater vehicle, the length of time for the data of the underwater sensor nodes to be transmitted to the surface sink node (data acquisition delay) will increase accordingly
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[0039] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.
[0040] A method for collecting underwater sensor data based on an underwater vehicle, using the underwater vehicle as a relay node, and the underwater vehicle hovers when collecting data, including:
[0041] S1. Construct the relay model of the underwater vehicle.
[0042] In one embodiment, the underwater vehicle relays a model such as figure 1 As shown, including: m water surface sink nodes D j (j=1,2,...,m), an underwater vehicle and n underwater sensor nodes S i (i=1,2,...,n), the surface sink node collects the data of the underwater sensor nodes by using the underwater vehicle as a relay node.
[0043] S2. Construct the hovering point position model of the underwater vehicle, and use the hovering point position model of the underwater vehicle to determine that the underwater vehicle collects each underwater sensor node data S i Hover point H i...
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The invention belongs to the field of underwater sensor data acquisition, and relates to an underwater sensor data acquisition method based on an underwater vehicle. The method uses the underwater vehicle as the relay forwarding node, and the underwater vehicle hovers when collecting data, including: S1, constructing the underwater vehicle relay model; S2, constructing the underwater vehicle relay model based on the underwater vehicle relay model. Under the hovering point position model of the underwater vehicle, and use the hovering point position model of the underwater vehicle to determine the hovering point position when the underwater vehicle collects the data of each underwater sensor node; S3. According to the hovering point position, use the path The planning algorithm is used to obtain the movement route of the underwater vehicle; S4. The underwater vehicle relays and forwards the data of the underwater sensor node to the surface convergence node according to the movement route, and completes the data collection of the underwater sensor node. The invention can achieve a balance between the energy consumption of the underwater sensor node and the time delay of data collection, and ensure that the underwater vehicle has better communication quality when relaying and forwarding data.
Description
technical field [0001] The invention belongs to the field of underwater sensor data acquisition, and relates to an underwater sensor data acquisition method based on an underwater vehicle. Background technique [0002] Underwater sensors are widely used in the development and utilization of marine resources, marine environment detection and other fields. Underwater sensor network has been paid more and more attention. [0003] Data collection is one of the basic applications of the underwater sensor network. At present, it is mainly based on the underwater sensor network, and the data of the underwater sensor is transmitted to the sink node on the water surface. For an underwater sensor network with a large number of nodes and a wide coverage area, when the underwater sensor node and the surface sink node cannot communicate directly, it is necessary to rely on the intermediate underwater sensor node to relay and forward data, which will easily cause the intermediate underwa...
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IPC IPC(8): H04W4/38H04W16/22H04W84/18
CPCH04W16/22H04W84/18H04W4/38
Inventor季飞陈耀廷官权升
OwnerSOUTH CHINA UNIV OF TECH