Robust wireless communication system for nodes located in vehicles

摘要

A communication method for a wireless communication network in a vehicle is disclosed where the network includes a plurality of sensor nodes and a receiving node. The method includes wirelessly transmitting first sensor data from a first sensor node and second sensor data from a second sensor node using first and second frequency channels, and receiving the first and second sensor data at the receiving node. The method can include rearranging the order of transmitting sensor data, and aggregating sensor data at the sensor nodes. The method can include testing the quality of the wireless links; and using the links with the best quality whether indirect or direct links. The receiving node can simultaneously receive data from more than one node using different frequencies. The nodes can transmit data in parallel using different frequencies. The network can include helper nodes. The wireless communication network can be designed as a tree.

主权项

1. A wireless communication system for a vehicle, the wireless communication system comprising:
a wireless receiving node; a first wireless sensor node for wirelessly transmitting first sensor data on a set of frequency channels to the wireless receiving node, the first wireless sensor node periodically switching frequency channels of the set of frequency channels for wirelessly transmitting to the wireless receiving node; a second wireless sensor node for wirelessly transmitting second sensor data on the set of frequency channels to the wireless receiving node, the second wireless sensor node periodically switching frequency channels of the set of frequency channels for wirelessly transmitting to the wireless receiving node; and a third wireless sensor node for wirelessly transmitting third sensor data to the wireless receiving node, wherein the wireless communication system evaluates transmission quality of wirelessly transmitting third sensor data directly from the third wireless sensor node to the wireless receiving node, evaluates transmission quality of wirelessly transmitting third sensor data from the third wireless sensor node to the wireless receiving node indirectly through the first wireless sensor node, and selects a selected transmission path for wirelessly transmitting third sensor data from the third wireless sensor node to the wireless receiving node; the selected transmission path having the highest transmission quality for wirelessly transmitting third sensor data to the wireless receiving node.