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Pressure monitoring system for one-way communication tire

A technology of air pressure monitoring and one-way communication, which is applied in tire measurement, tire parts, transportation and packaging, etc., and can solve the problems of increased power consumption of transmitters, lower batteries, and misjudgment of transmitter failures, etc.

Active Publication Date: 2012-09-19
BAOLONG HUF SHANGHAI ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such a drastic reduction in battery
[0010] The same is true for TPMS products. The increase in power consumption of the transmitter or the decrease in the RF reception rate will cause the ECU to misjudge the transmitter failure.

Method used

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  • Pressure monitoring system for one-way communication tire
  • Pressure monitoring system for one-way communication tire
  • Pressure monitoring system for one-way communication tire

Examples

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Embodiment Construction

[0024] The claimed subject matter is now described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of claimed subject matter. It can be evident, however, that the subject matter may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing the present invention.

[0025] figure 1 The structure of an automobile ECU according to an embodiment of the present invention is shown. refer to figure 1 As shown, an ECU (Electronic Control Unit, electronic control unit) 100 is arranged in an automobile as a part of a TPMS (Tire Pressure Monitoring System). The ECU 100 includes two parts: an RF receiving component 120 and an MCU (Micro Control Unit, microcontroller) 140 . The...

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Abstract

The invention relates to a pressure monitoring system for a one-way communication tire. The pressure monitoring system comprises an electronic control unit, wherein the electronic control unit comprises a microprocessor and a radio frequency receiving assembly. The radio frequency receiving assembly comprises a low-frequency time controller and an interruption port, the low-frequency time controller is used for generating periodic interruption so as to wake up the radio frequency receiving assembly to work, the radio frequency receiving assembly receives and processes radio frequency signals from an emitter so as to obtain radio frequency data, and the interruption port is used for informing the microprocessor that the radio frequency data are obtained. If the radio frequency signals are not received within a preset time, the radio frequency receiving assembly enters a standby state.

Description

technical field [0001] The invention relates to a tire pressure monitoring system, in particular to a tire pressure monitoring system in a one-way communication mode. Background technique [0002] In the field of automotive electronics, the application of radio frequency (RF) technology for data transmission and processing has been widely used in tire pressure monitoring system (TPMS) products. Considering the improvement of system integration and the reduction of product size, etc., the RF receiving and transmitting design in the system generally adopts modular processing. At present, a series of RF chips launched by electronic manufacturers are used to transmit and receive radio frequency data, and are applied to automotive electronic products. Various RF chips usually have the functions of phase locking, frequency mixing, baseband filtering and amplification, and also have the serial output function of demodulated data. The state of these chips can be configured, and ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C23/02
Inventor 孙路李威
Owner BAOLONG HUF SHANGHAI ELECTRONICS CO LTD
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