초록 ▼

A blockage detection system and method for use in a sensor such as a side object detection (SOD) sensor in an automotive radar system is described. The sensor emits signals and receives return signals (i.e. reflected signals) from a passing object. If the passing object is within a virtual detection

A blockage detection system and method for use in a sensor such as a side object detection (SOD) sensor in an automotive radar system is described. The sensor emits signals and receives return signals (i.e. reflected signals) from a passing object. If the passing object is within a virtual detection zone, the sensor uses the information from the passing object to determine if a blockage condition exists in the sensor. The technique utilizes statistics related to the passing object to determine whether a blockage condition exists within the sensor. In one embodiment, a SOD sensor mounted in a first vehicle uses information from a second passing vehicle (e.g. radar return information) to determine whether a blockage condition exists within the SOD sensor itself.

대표청구항 ▼

What is claimed is: 1. A blockage detection system comprising:a missed alert detection processor configured to receive target data generated in a virtual detection zone of the blockage detection system, and in response to the target data to generate a missed alert signal; anda blockage detection det

What is claimed is: 1. A blockage detection system comprising:a missed alert detection processor configured to receive target data generated in a virtual detection zone of the blockage detection system, and in response to the target data to generate a missed alert signal; anda blockage detection determination processor coupled to receive a missed alert signal from said missed alert detection processor and configured to provide a blockage alert signal at an output port thereof.