Low power consumption communication method of low-bitrate wireless sensor network suitable for data collection

Abstract

The invention discloses a low power consumption communication method of a low-bitrate wireless sensor network suitable for data collection. The method redesigns a media access control layer and a network layer of the low-bitrate wireless sensor network suitable for the data collection to obtain a mixed layer model with two layers, the time length of a cycle needing time synchronization is calculated, a work cycle of the low-bitrate wireless sensor network suitable for the data collection is designed, confirmation methods or calculation methods of all parameters in the cycle are displayed, time for monitoring a communication channel and sending data in the work cycle is decreased to the minimum, and power consumption of the wireless sensor network is greatly reduced. Data transmission of mixed layers and data transmission successful rate of the mixed layers are enabled to be connected, and the data transmission successful rate is monitored in real-time. Meanwhile, all functional modules of the mixed layers are designed and achieved on a standard platform Telosb of the wireless sensor network.

Description

technical field [0001] The invention relates to a low-power tree network communication method suitable for a low-speed wireless sensor network for data collection. [0002] Background technique [0003] At present, the main bottleneck problem in the application of wireless sensor networks is that the power consumption of its nodes is relatively large, and the power supply problem is difficult to solve, so it is difficult to spread it in a large area. [0004] Taking the common ZigBee network as an example, the mesh network only supports non-beacon mode, so all nodes are in the state of monitoring the channel at all times, and the energy consumption of monitoring the channel and sending data is the same. In a wireless sensor network that collects data at a low rate, this The energy consumption of the two items accounts for the vast majority, so it is difficult to reduce the power consumption of the wireless sensor network. [0005] For the ZigBee tree network, the beacon pl...

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Problems solved by technology

[0006] As mentioned above, taking the more mature ZigBee protocol as an example, there are so many deficiencies in the low power consumption of wireless sensor networks. It can be seen that how to reduce the power consumption of wireless sensor networks, the generality and bottleneck of wireless sensor network applications question

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