Automatic car tire pressure detecting apparatus

摘要: An automatic car tire pressure detecting apparatus constitutes an emission means located at the wheel rim of and a receiving brake pad. The includes generator, end sensor. generator has coil which positive negative linked in series with rectify switch end. magnet corresponding tangent spot coil, microprocessor attached to display device. When rotates, continuously cuts generate electric current actuate determines if flowing therethrough is positive. will be used for actuating emit signals are received by thereby able provide self-generating power supply transmit without external supply.