System and method for characterizing radio and antenna performance using RSS measurements
AssigneeDENSO International America, Inc.
InventorJoe Stinnett
Life of this patent
Estimating the term…
Abstract
A communications system for a vehicle includes an antenna mounted on a vehicle and configured to communicate with a plurality of remote units. A diagnostic controller is configured to detect obstacles or damage to the antenna. The diagnostic controller is configured to receive remote messages, measure a receive signal strength of the remote messages, and determine a ratio of low receive signal strength sample messages to total sample messages. The diagnostics controller is further configured to trigger a diagnostic output to the vehicle when the ratio is greater than a predetermined threshold.
Claims20
A communications system for a vehicle comprising:
- an antenna mounted on a vehicle and configured to communicate with a plurality of remote units;
- and
- a diagnostic controller, coupled to the antenna, configured to perform detecting of obstacles or damage to the antenna,
- wherein the diagnostic controller, coupled to the antenna, is configured to perform receiving remote messages sent from the plurality of remote units, measuring a receive signal strength of the remote messages, and determining a ratio of low receive signal strength sample messages to total sample messages, and
- the diagnostics controller triggers a diagnostic output to the vehicle when the ratio is greater than a predetermined threshold.
A diagnostics system configured to detect obstacles or damage to a communications antenna on a vehicle, the diagnostics system comprising:
- a remote message receiving unit, coupled to the antenna, configured to perform receiving messages from a plurality of remote units;
- a data determination unit, coupled to the antenna, measuring a receive signal strength of each message and determining a ratio of low receive signal strength sample messages to total sample messages;
- and
- a failure determination unit, coupled to the antenna, triggering a diagnostic output when the ratio is greater than a predetermined threshold.
A method for determining an integrity of a communications antenna on a vehicle, the method comprising:
- receiving, by a remote message receiving unit, a remote message sent by a remote unit;
- measuring, by a data determination unit, a receive signal strength of the remote message;
- determining, by a data determination unit, a ratio of low receive signal strength sample messages to total sample messages;
- and
- triggering, by a failure determination unit, a diagnostic output when the ratio is greater than a predetermined threshold.
Dependencies are inferred from the claim text.