Tire pressure monitoring device with wireless transceiver

Abstract

The invention discloses a tire pressure monitoring device with a wireless transceiver. The tire pressure monitoring device comprises a tire pressure monitoring sensor and a receiving display which both comprise wireless transceivers, wherein each wireless transceiver comprises a wireless transceiving chip U1 and a modulation carrier wave circuit, wherein the chip U1 is M1CRF112; the modulation carrier wave circuit comprises a crystal oscillator Y1, a resistor R8, a capacitor C3, a capacitor C17 and a capacitor C18; a pin XTLIN of the chip U1 is connected with the resistor R8 and the capacitor C3, and the other end of the capacitor C3 is in ground connection; the other end of the resistor R8 is connected with one end of the capacitor C17 and one end of the crystal oscillator Y1, and the other end of the capacitor C17 is in ground connection; the other end of the crystal oscillator Y1 is connected with the capacitor C18 and a pin XTLOUT of the chip U1. The tire pressure monitoring device with the wireless transceiver is high in signal penetrating power, is good in anti-interference effect, and is high in stability.

Description

technical field [0001] The invention relates to a tire pressure monitoring device, in particular to a tire pressure monitoring device with a wireless transceiver, which belongs to the technical field of TPMS. Background technique [0002] Tire pressure monitoring, also known as TPMS, is a real-time monitoring of the air pressure and temperature of automobile tires, displaying tire pressure and temperature values, allowing car owners to keep track of tire pressure and temperature conditions, timely discovering tire leaks, insufficient air pressure, and excessive air pressure, etc., to avoid A traffic accident caused by a blown tire. The current TPMS sensors are used for real-time automatic monitoring of tire pressure and temperature when the car is stationary or running, and timely alarm for tire high pressure, low pressure, and high temperature, so as to avoid traffic accidents caused by tire failure and ensure driving safety. The current common tire pressure monitoring dev...

AI Technical Summary

Problems solved by technology

The current common tire pressure monitoring device includes a tire pressure monitoring sensor and a receiving display. The tire pressure monitoring sensor is arranged at the tire, and the receiving display is arranged in the cab. The transmission distance of the wireless transceiver is limited, and the monitoring data of the rear tires of large vehicles cannot be accurately received

The wireless transceiver that comes with the monitoring device uses the public frequency band 433.92M. There are many interference signals, which also limits the use of the monitoring device. Since the monitoring information cannot be transmitted in time, it will also bring great risks to users.

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