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Electronic pest control is the name given to any of several types of electrically powered devices designed to repel or eliminate pests, usually rodents or insects. Since these devices are not regulated under the Federal Insecticide, Fungicide, and Rodenticide Act in the United States, the EPA does not require the same kind of efficacy testing that it does for chemical pesticides.
Repellents of this kind for domestic cats and dogs include ultrasonic devices which emit a high-frequency noise that does not affect humans. These types of non-chemical repellents are controversial, both because their effectiveness varies from animal to animal and because there have been few scientific studies conducted to prove that they work.
Toyota introduced ultrasonic Back Sonar on the 1982 Toyota Corona, offering it until 1988. [7] On December 13, 1984, Massimo Ciccarello and Ruggero Lenci (see List of Italian inventors ) entered in Italy the patent request for ultrasonics Parking sensors, and on November 16, 1988, the Ministry of Industry granted them the Patent for industrial ...
An enhanced system, called Ultrasonic Rear Occupant Alert, also uses ultrasonic sensors. [2] If the vehicle is locked and the ultrasonic sensors on the headlining detect movement in the rear seats, the system will flash the hazards lights and sound the horn for 25 seconds, and again if the system continue to detect movement, for up to eight ...
The hardware includes eight cameras covering an aggregate view of 360° around the car and 12 ultrasonic sensors, in addition to forward-facing radar with enhanced processing capabilities. [22] The radar is able to observe beneath and ahead of the vehicle in front of the Tesla; [ 23 ] the radar can see vehicles through heavy rain, fog or dust ...
mmWave sensing can be used inside vehicles to improve driver and passenger safety and comfort functions. [6] Notable advantages of using mmWave technology in vehicles revolve around its capability to operate effectively in spaces with low-lighting and limited visibility. mmWave sensing can penetrate materials like plastic, textiles, and glass, making it a contactless.
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Some deer whistles do not emit any ultrasonic sound under the advertised operating conditions (typically when the vehicle exceeds 30 mph). Ultrasonic sound does not carry very well. It does not travel a long enough distance to provide adequate warning, and also is stopped by virtually any intervening object, so any curves in a road will block ...
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