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post #7 of (permalink) Old 10th June 2009
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Parking sensors

Parking sensors are a technology that allows the driver of an automobile, truck, or commercial vehicle to be alerted to nearby objects in their path. Parking sensors are also known as backup sensors, parking sonar or just sonar depending on the automaker. While there are variations in the design and features of these systems, the basic design puts sensors in the vehicle's bumper or on brackets. These sensors send ultrasonic waves at 40,000 times per second that detect obstacles behind the vehicle. A controller installed inside the vehicle then receives the signal from the sensors and transmits it to a speaker that emits a tone, or to a combination speaker and display unit. As it results, the first invention of ultrasonic Parking sensors has been invented in Italy by electronic Engineer Massimo Ciccarello and Professor Architect Ruggero Lenci.[1] (Italian patent n. 1196650 requested at the Ministry of Industry in Rome December 13, 1984, issued November 16, 1988).
josh smith

Parking Sensor
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