RF receiving to serial port output method based on tire pressure receiver with configurable parameters

A technology for configuring parameters and output methods, which is applied in the field of RF receiving to serial port output, can solve the problems of inconvenient testing and verification, and achieve the effect of convenient testing and verification

Pending Publication Date: 2022-03-22
SUZHOU SATE AUTO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing tire pressure receivers can only receive RF data based on a specific RF protocol during test verification, which makes test verification inconvenient

Method used

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  • RF receiving to serial port output method based on tire pressure receiver with configurable parameters

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0042] Parameter group: 00 02 01 08 00 00 00 00

[0043] The first byte 00: indicates that the modulation mode is ASK.

[0044] The second byte 02: indicates the baud rate is 4800.

[0045] The third byte 01: indicates Manchester encoding.

[0046] The fourth byte 08: indicates that the length of the data to be received is 8biyes.

[0047] The fifth byte 00: indicates that the check method is XOR.

[0048] The sixth byte 00: indicates that the initial value of the inspection is Ox00.

[0049] The seventh byte 00: the low byte of the polynomial checksum.

[0050] The eighth byte 00: the high byte of the polynomial checksum.

example 2

[0052] Parameter group: 01 00 01 08 01 00 07 00

[0053] The first byte 01: indicates that the modulation mode is FSK.

[0054] The second byte 00: indicates the baud rate is 9600.

[0055] The third byte 01: indicates Manchester encoding.

[0056] The fourth byte 08: indicates that the length of the data to be received is 8biyes.

[0057] The fifth byte 01: indicates that the check method is CRC8.

[0058] The sixth byte 00: indicates that the initial value of the inspection is 0x00.

[0059] The seventh byte 07: The low byte of the polynomial check is 0x07.

[0060] The eighth byte 00: The high byte of the polynomial check is 0x00.

example 3

[0062] Parameter group: 00 00 01 0a 00 00 00 00

[0063] The first byte 00: indicates that the modulation mode is ASK.

[0064] The second byte 00: indicates the baud rate is 9600.

[0065] The third byte 01: indicates Manchester encoding.

[0066] The fourth byte OA: indicates that the length of the data to be received is 10biyes.

[0067] The fifth byte 00: indicates that the check method is XOR.

[0068] The sixth byte 00: indicates that the initial value of the inspection is Ox00.

[0069] The seventh byte 00: the low byte of the polynomial checksum.

[0070] The eighth byte 00: the high byte of the polynomial checksum.

[0071] After the parameters are successfully configured according to the parameter group, the receiver outputs the RF data serial port to the PC terminal.

[0072] The receiver sets the required RF parameters according to the parameter group in the serial command sent by the PC terminal, making the receiver compatible with multiple RF protocols, whi...

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PUM

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Abstract

The invention discloses a method for converting RF (Radio Frequency) receiving to serial port output based on a tire pressure receiver with configurable parameters, which comprises the following steps: S1, a PC (Personal Computer) terminal communicates with the receiver through a USB / RS-232 converter, and the PC terminal sends a serial port command for configuring RF parameters of the receiver; s2, an RS232 chip of the receiver receives the serial port command, the RS232 chip communicates with an MCU of the receiver through a UART, and the MCU of the receiver receives and analyzes the serial port command; s3, the MCU of the receiver communicates with the RF receiving chip of the receiver through the SPI, and the MCU of the receiver configures the RF receiving chip according to the parameter group contained in the serial port command; s4, the RF receiving chip receives the RF data, and after the RF data are verified to be correct, the receiver outputs the RF data to the PC terminal through a serial port. Compared with the prior art, the receiver can freely set required RF parameters, is compatible with various RF protocols, is convenient for receiving RF data, and greatly facilitates test verification.

Description

technical field [0001] The invention belongs to the field of tire pressure receivers, in particular to a method for converting RF reception to serial port output based on a tire pressure receiver with configurable parameters. Background technique [0002] Tire pressure monitoring system (tire pressure monitoring system, TPMS) is one of the three major safety systems of automobiles. It is installed on vehicles to monitor tire pressure parameters in real time, and prompts and alarms with visual signals to improve the safety of automobiles. And reduce the auxiliary system that accelerates tire wear and increases vehicle energy consumption due to insufficient or excessive air pressure. [0003] The tire pressure monitoring system is mainly composed of tire pressure receiver, tire pressure sensor, receiving antenna and display unit. Among them, the tire pressure receiver and tire pressure sensor are indispensable components of the current main direct tire pressure monitoring sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40G06F13/42G06F11/10
CPCG06F13/4068G06F13/4282G06F11/1004G06F2213/0002G06F2213/0042
Inventor 窦晓东魏祥
Owner SUZHOU SATE AUTO ELECTRONICS
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