Video aids radar to improve car safety - Embedded.com

Video aids radar to improve car safety

Cambridge, UK — Cambridge Consultants (CCL) has integrated a video link into its CCL-Softcar anti-collision radar technology. This can enable a video-equipped radar reversing sensor providing accurate and clear collision and safety warnings over a 180° monitoring zone of five meters (16 feet) depth.

The company says the CCL-Softcar radar reversing aid and video combination is better than the simple video link installed in some vehicles as a driver can find it difficult to determine exactly where and what objects are, especially when contrast is poor. Radar sensing overcomes this drawback, providing accurate detection of obstacle distance and trajectory.

In the CCL-Softcar implementation, the camera augments the radar by automatically directing the driver's attention towards the most dangerous obstacle. The feedback provides the driver with both an accurate audio-visual warning from the radar, and an overlaid video image flagging the danger point – which could be the nearest object, the fastest-moving object, or the nearest pedestrian for example, or some prioritised sequence of dangers.

By further processing radar data using an 'object classification' algorithm — the subject of current development effort by a number of automobile manufacturers — the system is capable of providing intelligent alerts.

CCL-Softcar is based on low frequency radar technology, which lowers the cost of the components required to build a system compared with alternative approaches.

This enhancement of the CCL-Softcar anti-collision radar technology announced by CCL in May 2003. CCL-Softcar is a pulsed radar system working in the 5.8GHz band, rather than the 24 or 77GHz bands used in alternative anti-collision radar approaches.

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