Vehicle Sensor System Synchronous Asynchronous Data Communication
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Solution Overview
Problem
Existing sensor systems in vehicle and stationary power systems face interference issues due to wireless signal overlap, leading to inaccurate data reception and increased complexity and cost in identifying and locating sensors, which hampers effective monitoring and maintenance.
Innovation Solution
Implementing a method where sensors onboard vehicles communicate data synchronously within the same vehicle and asynchronously between vehicles, using coordinated sampling frequencies and communication rates to reduce interference, and automatically pairing sensors with components based on operational changes and data output, without manual input of sensor locations or identities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If sensors wirelessly communicate characteristics monitored by the sensors, then data transmission is enabled, but interference between wireless signals increases
Solution Approach 1:
Sensors onboard the same vehicle communicate data synchronously at the same periodic intervals, while sensors on different vehicles communicate asynchronously at different periodic intervals. This periodic action with coordinated timing reduces wireless signal interference between vehicles while maintaining efficient data transmission within each vehicle.
2Measurement precision
If manual input of sensor locations and identities is required, then sensor identification is achieved, but time and cost increase
Solution Approach 1:
The system automatically identifies and associates sensors with their respective vehicles and components without manual input. Sensors self-identify their locations and identities through the communication system, eliminating the need for manual configuration and significantly reducing setup time and costs.
3Measurement precision
If sensors communicate identities and locations, then sensor tracking is improved, but complexity and cost increase
Solution Approach 1:
Sensors automatically provide their identity and location information through the existing communication infrastructure without requiring additional hardware or complex configuration. The system extracts location and identity data from the communication metadata, simplifying sensor design while maintaining tracking capability.
Data Source
AI summary
A sensor system senses one or more characteristics of vehicles in a vehicle system with sensors disposed onboard the vehicles and communicate data representative of the one or more characteristics from the sensors to one or more of a controller or a control system of the vehicle system. The data communicated from the sensors onboard the same vehicle can be synchronously communicated with respect to the sensors onboard the same vehicle and asynchronously communicated with respect to the sensors disposed onboard one or more other vehicles in the vehicle system. The systems and methods can direct components disposed onboard a vehicle system to change operations, monitor data output by sensors operatively connected with the components, and determine which of the sensors are operatively connected with which of the components based on the operations of the components that are changed and the data that is output by the sensors.