Electromagnetic parking sensor schematic

I saw that there is a new type of proximity sensor for parking assistance. I am curious to know if somebody can explain how this kind of circuit runs. Ultrasonic and infrared based are inferior to electromagnetic based so it will be really nice to be able to build one.

Parking sensors for road vehicles designed to alert the driver to obstacles while parking. Parking Dynamics on countless occasions with no reply whatsoever.

The IC1 (NE555) is wired as an astable multivibrator for driving the IR Diode D1 to emit IR pulses. And how does having parking sensors impact on your car insurance premiums?

Spy Parking Sensor Electromagnetic Parking Sensor Car Parking Sensor. Electromagnetic Parking Sensor Car Parking SensorGet Latest PriceMin. The Dolphin Automotive parking sensors have also been Recommended by BMW car magazine where to quote the tester . Black Sensors for Spraying* Lifetime Warranty is to the original purchaser of the Dolphin Kit. This section of EG Labs brings you new & latest electronics circuits and schematics. Could anyone suggest what sort of sensors I would need and frequencies etc? It emits an electromagnetic field or a beam of electromagnetic radiation (for example: infrared) and then looks for changes in the return signal or field. USB proximity sensor or proximity sensor IC (integrated circuit).