Ad hoc network method and device for vehicle-mounted passive wireless sensor network

Abstract

The invention discloses a vehicle-mounted passive wireless sensor network ad hoc network method and device, wherein, the method comprises the following steps: acquiring neighboring node information ofeach node in the vehicle-mounted passive wireless sensor network, and establishing a neighboring node list; obtaining the energy information of the superior node according to the neighbor node list to determine the optimal superior node, broadcasting the address of the relay node of each node; after transmitting data in the first preset time slot at each transmitting node according to the relay node address of each node, receiving data by each relay node in the second preset time slot to complete data transmission. Based on the time slot allocation strategy of TSCH synchronous time slot frequency hopping technology, this method solves the packet loss problem of long-distance multi-hop transmission, and designs the energy consumption balance strategy based on the energy prediction model, which improves the overall energy utilization.

Description

technical field [0001] The invention relates to the technical field of passive wireless sensor networks, in particular to an ad hoc network method and device for a vehicle-mounted passive wireless sensor network. Background technique [0002] Due to its low power consumption, high reliability, and strong flexibility, wireless sensor networks have been widely used in vehicle health monitoring and other fields. It is a widely used design to use batteries to provide energy for sensor nodes in wireless sensor networks. However, due to the large number of wireless sensor nodes and their widespread irregular distribution, their own battery power is also very limited. Regularly replace the battery, so the cost of manpower and material resources is high, and it is difficult to replace the battery in some extreme cases. In order to solve this problem, the passive wireless sensor network technology was proposed. The passive wireless sensor network is composed of sensor nodes with ene...

AI Technical Summary

Problems solved by technology

[0004] 1. The selection of relay nodes only considers the remaining energy of the node, and does not consider the change of energy collection power, resulting in low energy utilization efficiency

[0005] 2. Multi-hop transmission in long-distance carriages in rail transit is prone to collisions and packet loss, resulting in congestion that paralyzes the entire network and exhausts the energy of individual relay nodes, affecting the life of the network

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