A Method of Acquisition of Environmental Data of Underwater Acoustic Sensor Network Based on Matrix Filling
An underwater acoustic sensor and network environment technology, applied in instruments, complex mathematical operations, and measurement of ultrasonic/sonic/infrasonic waves, etc., can solve problems such as the inability to guarantee the stability of the number of sampling points, poor stability of reconstruction errors, etc., to ensure energy consumption The effects of balancing, ensuring randomness, and satisfying reconstruction accuracy
Active Publication Date: 2022-05-20
HARBIN ENG UNIV
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Xu et al proposed a sampling algorithm based on the LEACH clustering probability model (Low-Energy DataCollection in Wireless Sensor Networks Based on Matrix Completion, RRAS). This mechanism can ensure the energy balance of network nodes, but cannot guarantee the stability of the number of sampling points , its reconstruction error stability is poor
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0081] In this embodiment, the sea temperature data generated by the RACMS system off the coast of California, USA is used to verify the data reconstruction accuracy of the method and the energy balance among nodes. The start time of data collection is 9 am on January 1, 2017, and the data is observed every 6 hours. 100 nodes are randomly selected as observation points in a three-dimensional sea area with a depth of 30m-300m and a horizontal area of 1000m×1000m. Assuming that the initial energy of the sensor node is 100J, the energy consumed by the sensor node to send data to the sea base station once is 1J. Because the problem solved by this algorithm is mainly related to the energy consumption of transmission, this example ignores the energy consumed by sensor nodes to receive and process data.
[0082] The total number of acquisition time slots is 100, the number of reconstruction window time slots is 50, and the sampling rate is 0.3. According to the sampling rate, the...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention belongs to the technical field of underwater acoustic sensor networks, and in particular relates to a method for collecting environment data of underwater acoustic sensor networks based on matrix filling. The invention uses the data reconstruction mechanism based on matrix filling to reduce the amount of data to be collected in the network and save the energy consumed by data transmission. According to the actual network deployment situation, a fixed allocation strategy for sampling time slots is designed to ensure the randomness of sampling time slots , to balance the energy consumption among nodes. Compared with the underwater acoustic sensor network acquisition mechanism based on compressed sensing, the acquisition mechanism based on matrix completion proposed by the present invention is more suitable for ocean observation scenarios with weak spatial correlation of data. The node sampling strategy proposed by the present invention has a low network data transmission volume, can ensure the randomness of sampling points, and at the same time can ensure the balance of energy consumption among nodes and meet the reconstruction accuracy.
Description
technical field [0001] The invention belongs to the technical field of underwater acoustic sensor networks, and in particular relates to a method for collecting environment data of underwater acoustic sensor networks based on matrix filling. Background technique [0002] Underwater acoustic sensor networks are widely used to collect marine environmental information. Environmental data such as temperature, salinity, and ocean currents are collected regularly through multiple small sensor nodes distributed underwater, and then the data are sent to the sea surface base station (Sink). The Sink node passes A network of satellites sends the data to an onshore processing center. The data collected from the marine environment can usually be represented by an N×T matrix, that is, the data information collected by N sensor nodes in T time slots. In traditional data acquisition methods, sensor nodes usually send all the information collected in each time slot to the base station, res...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01H17/00G06F17/16
CPCG01H17/00G06F17/16Y02D30/70
Inventor 殷敬伟郑茂醇韩笑孙瑶生雪莉
Owner HARBIN ENG UNIV