US 2013/0157703 A1 · ROBUST WIRELESS COMMUNICATION SYSTEM FOR NODES LOCATED IN VEHICLES

Abstract

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.

Claims20

Dependent claims

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;
and
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.

1 more element

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 to the wireless receiving node;
a second wireless sensor node for wirelessly transmitting second sensor data to the wireless receiving node, and
a wireless helper node for wirelessly transmitting sensor data from selected wireless sensors to the wireless receiving node;
the helper node not sensing sensor data.

2 more elements

A wireless communication system for a vehicle, the wireless communication system comprising:

a wireless receiving node;
a plurality of wireless sensor nodes for wirelessly transmitting sensor data to the wireless receiving node, each wireless sensor node sensing local sensor data and transmitting the sensed local sensor data;
wherein for each individual sensor node of the plurality of wireless sensor nodes, the wireless communication system evaluates transmission quality of wirelessly transmitting sensor data directly from the individual sensor node to the wireless receiving node, evaluates transmission quality of wirelessly transmitting sensor data indirectly from the individual sensor node to the wireless receiving node through one or more of the other sensor nodes of the plurality of wireless sensor nodes, and selects a selected transmission path for wirelessly transmitting sensor data from the individual sensor node to the wireless receiving node;
the selected transmission path having the highest transmission quality for wirelessly transmitting sensor data from the individual sensor node to the wireless receiving node.

1 more element

Dependencies are inferred from the claim text.

Robust wireless communication system for nodes located in vehicles

Life of this patent

Robust wireless communication system for nodes located in vehicles

Life of this patent

Abstract

Claims20