阅读说明：本技术 一种基于胎压传感器的阈值设定系统 (Threshold value setting system based on tire pressure sensor ) 是由 吴银虎 于 2019-03-11 设计创作，主要内容包括：本发明公开了一种基于胎压传感器的阈值设定系统,由主处理器模块、胎压传感器模块、显示触摸模块、出厂设定系统和手持或地面终端组成,当需要对胎压传感器报警阈值进行设置时,输入报警阈值,经过主处理器模块分别传输给各个胎压传感器模块,或通过出厂设定系统/手持或地面终端直接对各个胎压传感器模块进行设置。解决了现有胎压传感器阈值设定效率低及安装后无法再次设定的问题。(The invention discloses a threshold setting system based on tire pressure sensors, which consists of a main processor module, a tire pressure sensor module, a display touch module, a factory setting system and a handheld or ground terminal. The problem of current tire pressure sensor threshold value set for inefficiency and can't set for once more after the installation is solved.)

1. A threshold value setting system based on a tire pressure sensor is characterized in that: the tire pressure monitoring system comprises a plurality of tire pressure sensors, a main processor module and a handheld or ground terminal;

the tire pressure sensor comprises a first MCU module, a measuring unit, a storage unit, a low-frequency wireless receiving unit and a high-frequency wireless transmitting unit, wherein the first MCU module is an embedded system and is characterized in that: when the first MCU module receives an external tire pressure alarm threshold value setting instruction, the set threshold value is read in time and stored in the designated position of the storage unit, and the first MCU module compares the tire pressure value measured by the measuring unit with the set tire pressure alarm threshold value according to the set gap and transmits back new threshold value data;

the main processor module comprises a second MCU module, a CAN bus, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set tire pressure alarm threshold value is input, and the second MCU module controls the low-frequency wireless transmitting unit of the main processor module to transmit the low-frequency wireless transmitting unit to each tire pressure sensor; when receiving an external tire pressure alarm threshold value setting instruction, the first MCU module of each tire pressure sensor timely reads the tire pressure alarm threshold value and stores the tire pressure alarm threshold value in an appointed position of the storage unit, and the first MCU module compares the tire pressure value measured by the measuring unit with the tire pressure alarm threshold value according to a set gap;

when the tire pressure sensor is set by the main processor module, it includes the steps of:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the main processor module respectively transmits the set tire pressure alarm threshold values to each tire pressure sensor;

step 3: each tire pressure sensor transmits back new threshold data, the main processing module completes comparison after receiving the new threshold data, and the setting is completed if the values are consistent;

the handheld or ground terminal comprises a third MCU module, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set tire pressure alarm threshold value is input, and the third MCU module controls the low-frequency wireless transmitting units of the handheld or ground terminal to respectively transmit the low-frequency wireless transmitting units to the corresponding tire pressure sensors; when receiving an external tire pressure alarm threshold value setting instruction, a first MCU module of the tire pressure sensor timely reads the set tire pressure alarm threshold value and stores the set tire pressure alarm threshold value in an appointed position of a storage unit, and the first MCU module compares a tire pressure value measured by a measuring unit with the set tire pressure alarm threshold value according to a set gap;

when the tire pressure sensor is set by the hand-held or ground terminal, it includes the steps of:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the handheld or ground terminal respectively transmits the set tire pressure alarm threshold values to the corresponding tire pressure sensors;

step 3: the tire pressure sensor transmits back new tire pressure alarm threshold data, the hand-held or ground terminal completes comparison after receiving the new tire pressure alarm threshold data, and the setting is completed if the values are consistent.

2. A threshold value setting system based on a tire pressure sensor is characterized in that: the tire pressure monitoring system comprises a plurality of tire pressure sensors, a main processor module and a factory setting system;

the tire pressure sensor comprises a first MCU module, a measuring unit, a storage unit, a low-frequency wireless receiving unit and a high-frequency wireless transmitting unit, wherein the first MCU module is an embedded system and is characterized in that: when the first MCU module receives an external tire pressure alarm threshold value setting instruction, the set threshold value is read in time and stored in the designated position of the storage unit, and the first MCU module compares the tire pressure value measured by the measuring unit with the set tire pressure alarm threshold value according to the set gap and transmits back new threshold value data;

the main processor module comprises a second MCU module, a CAN bus, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set tire pressure alarm threshold value is input, and the second MCU module controls the low-frequency wireless transmitting unit of the main processor module to transmit the low-frequency wireless transmitting unit to each tire pressure sensor; when receiving an external tire pressure alarm threshold value setting instruction, the first MCU module of each tire pressure sensor timely reads the tire pressure alarm threshold value and stores the tire pressure alarm threshold value in an appointed position of the storage unit, and the first MCU module compares the tire pressure value measured by the measuring unit with the tire pressure alarm threshold value according to a set gap;

when the tire pressure sensor is set by the main processor module, it includes the steps of:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the main processor module respectively transmits the set tire pressure alarm threshold values to each tire pressure sensor;

step 3: each tire pressure sensor transmits back new threshold data, the main processing module completes comparison after receiving the new threshold data, and the setting is completed if the values are consistent;

the factory setting system comprises a fourth MCU module, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set alarm threshold value is input, and the fourth MCU module controls the low-frequency wireless transmitting unit of the factory setting system to transmit the low-frequency wireless transmitting unit to the corresponding tire pressure sensor; when receiving an alarm tire pressure threshold setting instruction sent from the outside, a first MCU module of the tire pressure sensor timely reads the set threshold and stores the threshold in a designated position of a storage unit, and compares a tire pressure value measured by a measuring unit with the set tire pressure threshold according to a set gap;

when the tire pressure sensor is set by the factory setting system, it includes the steps of:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the factory setting system respectively transmits the set tire pressure alarm threshold values to the corresponding tire pressure sensors;

step 3: the tire pressure sensor transmits back new tire pressure alarm threshold data, the factory setting system completes comparison after receiving the new tire pressure alarm threshold data, and the setting is completed if the values are consistent.

3. A threshold value setting system based on a tire pressure sensor is characterized in that: the tire pressure monitoring system comprises a plurality of tire pressure sensors, a main processor module, a handheld or ground terminal and a factory setting system;

the tire pressure sensor comprises a first MCU module, a measuring unit, a storage unit, a low-frequency wireless receiving unit and a high-frequency wireless transmitting unit, wherein the first MCU module is an embedded system and is characterized in that: when the first MCU module receives an external tire pressure alarm threshold value setting instruction, the set threshold value is read in time and stored in the designated position of the storage unit, and the first MCU module compares the tire pressure value measured by the measuring unit with the set tire pressure alarm threshold value according to the set gap and transmits back new threshold value data;

the main processor module comprises a second MCU module, a CAN bus, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set tire pressure alarm threshold value is input, and the second MCU module controls the low-frequency wireless transmitting unit of the main processor module to transmit the low-frequency wireless transmitting unit to each tire pressure sensor; when receiving an external tire pressure alarm threshold value setting instruction, the first MCU module of each tire pressure sensor timely reads the tire pressure alarm threshold value and stores the tire pressure alarm threshold value in an appointed position of the storage unit, and the first MCU module compares the tire pressure value measured by the measuring unit with the tire pressure alarm threshold value according to a set gap;

when the tire pressure sensor is set by the main processor module, it includes the steps of:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the main processor module respectively transmits the set tire pressure alarm threshold values to each tire pressure sensor;

step 3: each tire pressure sensor transmits back new threshold data, the main processing module completes comparison after receiving the new threshold data, and the setting is completed if the values are consistent;

the handheld or ground terminal comprises a third MCU module, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set tire pressure alarm threshold value is input, and the third MCU module controls the low-frequency wireless transmitting units of the handheld or ground terminal to respectively transmit the low-frequency wireless transmitting units to the corresponding tire pressure sensors; when receiving an external tire pressure alarm threshold value setting instruction, a first MCU module of the tire pressure sensor timely reads the set tire pressure alarm threshold value and stores the set tire pressure alarm threshold value in an appointed position of a storage unit, and the first MCU module compares a tire pressure value measured by a measuring unit with the set tire pressure alarm threshold value according to a set gap;

when the tire pressure sensor is set by the hand-held or ground terminal, it includes the steps of:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the handheld or ground terminal respectively transmits the set tire pressure alarm threshold values to the corresponding tire pressure sensors;

step 3: the tire pressure sensor transmits back new tire pressure alarm threshold data, the hand-held or ground terminal completes comparison after receiving the new tire pressure alarm threshold data, and the setting is completed if the values are consistent;

the factory setting system comprises a fourth MCU module, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set alarm threshold value is input, and the fourth MCU module controls the low-frequency wireless transmitting unit of the factory setting system to transmit the low-frequency wireless transmitting unit to the corresponding tire pressure sensor; when receiving an alarm tire pressure threshold setting instruction sent from the outside, a first MCU module of the tire pressure sensor timely reads the set threshold and stores the threshold in a designated position of a storage unit, and compares a tire pressure value measured by a measuring unit with the set tire pressure threshold according to a set gap;

when the tire pressure sensor is set by the factory setting system, it includes the steps of:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the factory setting system respectively transmits the set tire pressure alarm threshold values to the corresponding tire pressure sensors;

step 3: the tire pressure sensor transmits back new tire pressure alarm threshold data, the factory setting system completes comparison after receiving the new tire pressure alarm threshold data, and the setting is completed if the values are consistent.

Technical Field

The invention relates to a tire pressure monitoring device, in particular to a threshold setting system based on a tire pressure sensor.

Background

The tire pressure monitoring system is abbreviated as "TPMS", which is an abbreviation of "tire pressure monitoring system". The technology can automatically monitor various conditions of the tire in real time by recording the rotating speed of the tire or an electronic sensor arranged in the tire, and can provide effective safety guarantee for driving.

At present, in the search of patent libraries, application No. 201510710915.6 discloses an automatic detection technology for the position of an automobile tire pressure sensor, which improves the efficiency of the current installation and setting of the automobile tire pressure sensor, and can automatically correspond the installation position of the tire pressure sensor to an ID number, but the setting of all parameters of the tire pressure sensor still cannot be completed only by completing the correspondence between the position and the ID, the alarm threshold value of each tire pressure sensor still needs to be set, and the single and repeated setting of the threshold value of each tire pressure sensor still is labor which is low in efficiency and time-consuming.

Therefore, on the basis of the existing tire pressure sensor positioning technology, the high-efficiency setting technology of the alarm threshold value of the tire pressure sensor is added, so that higher setting efficiency is realized, and better use effect and better practicability are obtained.

Disclosure of Invention

The invention aims to provide a threshold value setting system based on a tire pressure sensor, which is used for solving the problems that the existing tire pressure sensor has low threshold value setting efficiency and cannot be set again after being installed.

In order to achieve the purpose, the invention adopts the following technical scheme:

a threshold value setting system based on a tire pressure sensor is characterized in that: the tire pressure monitoring system comprises a plurality of tire pressure sensors, a main processor module and a handheld or ground terminal;

the tire pressure sensor comprises a first MCU module, a measuring unit, a storage unit, a low-frequency wireless receiving unit and a high-frequency wireless transmitting unit, wherein the first MCU module is an embedded system and is characterized in that: when the first MCU module receives an external tire pressure alarm threshold value setting instruction, the set threshold value is read in time and stored in the designated position of the storage unit, and the first MCU module compares the tire pressure value measured by the measuring unit with the set tire pressure alarm threshold value according to the set gap and transmits back new threshold value data;

the main processor module comprises a second MCU module, a CAN bus, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set tire pressure alarm threshold value is input, and the second MCU module controls the low-frequency wireless transmitting unit of the main processor module to transmit the low-frequency wireless transmitting unit to each tire pressure sensor; when receiving an external tire pressure alarm threshold value setting instruction, the first MCU module of each tire pressure sensor timely reads the tire pressure alarm threshold value and stores the tire pressure alarm threshold value in an appointed position of the storage unit, and the first MCU module compares the tire pressure value measured by the measuring unit with the tire pressure alarm threshold value according to a set gap;

when the tire pressure sensor is set by the main processor module, it includes the steps of:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the main processor module respectively transmits the set tire pressure alarm threshold values to each tire pressure sensor;

step 3: each tire pressure sensor transmits back new threshold data, the main processing module completes comparison after receiving the new threshold data, and the setting is completed if the values are consistent;

the handheld or ground terminal comprises a third MCU module, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set tire pressure alarm threshold value is input, and the third MCU module controls the low-frequency wireless transmitting units of the handheld or ground terminal to respectively transmit the low-frequency wireless transmitting units to the corresponding tire pressure sensors; when receiving an external tire pressure alarm threshold value setting instruction, a first MCU module of the tire pressure sensor timely reads the set tire pressure alarm threshold value and stores the set tire pressure alarm threshold value in an appointed position of a storage unit, and the first MCU module compares a tire pressure value measured by a measuring unit with the set tire pressure alarm threshold value according to a set gap;

when the tire pressure sensor is set by the hand-held or ground terminal, it includes the steps of:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the handheld or ground terminal respectively transmits the set tire pressure alarm threshold values to the corresponding tire pressure sensors;

step 3: the tire pressure sensor transmits back new tire pressure alarm threshold data, the hand-held or ground terminal completes comparison after receiving the new tire pressure alarm threshold data, and the setting is completed if the values are consistent.

A threshold value setting system based on a tire pressure sensor is characterized in that: the tire pressure monitoring system comprises a plurality of tire pressure sensors, a main processor module and a factory setting system;

the tire pressure sensor comprises a first MCU module, a measuring unit, a storage unit, a low-frequency wireless receiving unit and a high-frequency wireless transmitting unit, wherein the first MCU module is an embedded system and is characterized in that: when the first MCU module receives an external tire pressure alarm threshold value setting instruction, the set threshold value is read in time and stored in the designated position of the storage unit, and the first MCU module compares the tire pressure value measured by the measuring unit with the set tire pressure alarm threshold value according to the set gap and transmits back new threshold value data;

the main processor module comprises a second MCU module, a CAN bus, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set tire pressure alarm threshold value is input, and the second MCU module controls the low-frequency wireless transmitting unit of the main processor module to transmit the low-frequency wireless transmitting unit to each tire pressure sensor; when receiving an external tire pressure alarm threshold value setting instruction, the first MCU module of each tire pressure sensor timely reads the tire pressure alarm threshold value and stores the tire pressure alarm threshold value in an appointed position of the storage unit, and the first MCU module compares the tire pressure value measured by the measuring unit with the tire pressure alarm threshold value according to a set gap;

when the tire pressure sensor is set by the main processor module, it includes the steps of:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the main processor module respectively transmits the set tire pressure alarm threshold values to each tire pressure sensor;

step 3: each tire pressure sensor transmits back new threshold data, the main processing module completes comparison after receiving the new threshold data, and the setting is completed if the values are consistent;

the factory setting system comprises a fourth MCU module, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set alarm threshold value is input, and the fourth MCU module controls the low-frequency wireless transmitting unit of the factory setting system to transmit the low-frequency wireless transmitting unit to the corresponding tire pressure sensor; when receiving an alarm tire pressure threshold setting instruction sent from the outside, a first MCU module of the tire pressure sensor timely reads the set threshold and stores the threshold in a designated position of a storage unit, and compares a tire pressure value measured by a measuring unit with the set tire pressure threshold according to a set gap;

when the tire pressure sensor is set by the factory setting system, it includes the steps of:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the factory setting system respectively transmits the set tire pressure alarm threshold values to the corresponding tire pressure sensors;

step 3: the tire pressure sensor transmits back new tire pressure alarm threshold data, the factory setting system completes comparison after receiving the new tire pressure alarm threshold data, and the setting is completed if the values are consistent.

A threshold value setting system based on a tire pressure sensor is characterized in that: the tire pressure monitoring system comprises a plurality of tire pressure sensors, a main processor module, a handheld or ground terminal and a factory setting system;

the tire pressure sensor comprises a first MCU module, a measuring unit, a storage unit, a low-frequency wireless receiving unit and a high-frequency wireless transmitting unit, wherein the first MCU module is an embedded system and is characterized in that: when the first MCU module receives an external tire pressure alarm threshold value setting instruction, the set threshold value is read in time and stored in the designated position of the storage unit, and the first MCU module compares the tire pressure value measured by the measuring unit with the set tire pressure alarm threshold value according to the set gap and transmits back new threshold value data;

the main processor module comprises a second MCU module, a CAN bus, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set tire pressure alarm threshold value is input, and the second MCU module controls the low-frequency wireless transmitting unit of the main processor module to transmit the low-frequency wireless transmitting unit to each tire pressure sensor; when receiving an external tire pressure alarm threshold value setting instruction, the first MCU module of each tire pressure sensor timely reads the tire pressure alarm threshold value and stores the tire pressure alarm threshold value in an appointed position of the storage unit, and the first MCU module compares the tire pressure value measured by the measuring unit with the tire pressure alarm threshold value according to a set gap;

when the tire pressure sensor is set by the main processor module, it includes the steps of:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the main processor module respectively transmits the set tire pressure alarm threshold values to each tire pressure sensor;

step 3: each tire pressure sensor transmits back new threshold data, the main processing module completes comparison after receiving the new threshold data, and the setting is completed if the values are consistent;

the handheld or ground terminal comprises a third MCU module, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set tire pressure alarm threshold value is input, and the third MCU module controls the low-frequency wireless transmitting units of the handheld or ground terminal to respectively transmit the low-frequency wireless transmitting units to the corresponding tire pressure sensors; when receiving an external tire pressure alarm threshold value setting instruction, a first MCU module of the tire pressure sensor timely reads the set tire pressure alarm threshold value and stores the set tire pressure alarm threshold value in an appointed position of a storage unit, and the first MCU module compares a tire pressure value measured by a measuring unit with the set tire pressure alarm threshold value according to a set gap;

when the tire pressure sensor is set by the hand-held or ground terminal, it includes the steps of:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the handheld or ground terminal respectively transmits the set tire pressure alarm threshold values to the corresponding tire pressure sensors;

step 3: the tire pressure sensor transmits back new tire pressure alarm threshold data, the hand-held or ground terminal completes comparison after receiving the new tire pressure alarm threshold data, and the setting is completed if the values are consistent;

the factory setting system comprises a fourth MCU module, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set alarm threshold value is input, and the fourth MCU module controls the low-frequency wireless transmitting unit of the factory setting system to transmit the low-frequency wireless transmitting unit to the corresponding tire pressure sensor; when receiving an alarm tire pressure threshold setting instruction sent from the outside, a first MCU module of the tire pressure sensor timely reads the set threshold and stores the threshold in a designated position of a storage unit, and compares a tire pressure value measured by a measuring unit with the set tire pressure threshold according to a set gap;

when the tire pressure sensor is set by the factory setting system, it includes the steps of:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the factory setting system respectively transmits the set tire pressure alarm threshold values to the corresponding tire pressure sensors;

step 3: the tire pressure sensor transmits back new tire pressure alarm threshold data, the factory setting system completes comparison after receiving the new tire pressure alarm threshold data, and the setting is completed if the values are consistent.

The invention has the following advantages:

1. the invention discloses a tire pressure sensor with a settable or modifiable tire pressure alarm threshold value, and a system and a method for setting or modifying the tire pressure alarm threshold value of the tire pressure sensor during use, factory shipment and maintenance. When the tire pressure alarm device is used, the tire pressure alarm threshold value can be set and modified according to the requirements of different vehicle types.

2. When the tire pressure sensor is used, when the first MCU module receives a tire pressure alarm threshold value setting instruction sent from the outside, the set threshold value is read in time and stored in the appointed position of the storage unit, and the first MCU module compares the tire pressure value measured by the measuring unit with the set tire pressure alarm threshold value according to the set gap. Compared with the prior art, the static tire pressure monitoring system can be positioned, matched and monitored, and the safety is improved.

Drawings

Fig. 1 is a block diagram illustrating a tire pressure sensor module of a tire pressure sensor-based monitoring threshold setting system according to the present invention.

Fig. 2 is a system block diagram of the monitoring threshold setting system based on the tire pressure sensor according to the present invention.

Fig. 3 is a block diagram of the main processor module of the monitoring threshold setting system based on the tire pressure sensor according to the present invention.

Fig. 4 is a block diagram of a factory setting system of the monitoring threshold setting system based on the tire pressure sensor according to the present invention.

Fig. 5 is a block diagram of a hand-held or ground terminal of the tire pressure sensor-based monitoring threshold setting system according to the present invention.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship may be made without substantial changes in the technical contents.

Example 1

Referring to fig. 1, a tire pressure sensor includes a first MCU module, a measuring unit, a storage unit, a low frequency wireless receiving unit and a high frequency wireless transmitting unit, the first MCU module is an embedded system, when the first MCU module receives a tire pressure alarm threshold setting command from the outside, the first MCU module reads the set threshold in time and stores the same in a designated location of the storage unit, and the first MCU module compares the tire pressure measured by the measuring unit with the set tire pressure threshold according to a set gap.

Referring to fig. 2 to 3, a tire pressure sensor-based threshold setting system includes the tire pressure sensor and the main processor module as described above; the main processor module comprises a second MCU module, a CAN bus, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set tire pressure alarm threshold value is input, and the second MCU module controls the low-frequency wireless transmitting unit of the main processor module to transmit the low-frequency wireless transmitting unit to each tire pressure sensor; when receiving an external tire pressure alarm threshold value setting instruction, the first MCU module of each tire pressure sensor timely reads the set threshold value and stores the set threshold value in the designated position of the storage unit, and the first MCU module compares the tire pressure value measured by the measuring unit with the set tire pressure alarm threshold value according to the set gap.

Preferably, the method is implemented by using the system as described above, and comprises the following steps:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the main processor module respectively transmits the set tire pressure alarm threshold values to each tire pressure sensor;

step 3: and each tire pressure sensor transmits new tire pressure alarm threshold data back, the main processing module completes comparison after receiving the new tire pressure alarm threshold data, and the setting is completed if the values are consistent.

Referring to fig. 4, a threshold setting system based on a tire pressure sensor includes the tire pressure sensor and a factory setting system as described above; the factory setting system comprises a fourth MCU module, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set alarm threshold value is input, and the fourth MCU module controls the low-frequency wireless transmitting unit of the factory setting system to transmit the low-frequency wireless transmitting unit to the corresponding tire pressure sensor; when receiving an external tire pressure alarm threshold value setting instruction, the first MCU module of the tire pressure sensor timely reads the tire pressure alarm threshold value and stores the tire pressure alarm threshold value in an appointed position of the storage unit, and compares the tire pressure value measured by the measuring unit with the set tire pressure alarm threshold value according to the set gap.

Preferably, the method is implemented by using the system as described above, and comprises the following steps:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the factory setting system respectively transmits the set tire pressure alarm threshold values to the corresponding tire pressure sensors;

step 3: the tire pressure sensor transmits back new tire pressure alarm threshold data, the factory setting system completes comparison after receiving the new tire pressure alarm threshold data, and the setting is completed if the values are consistent.

Referring to fig. 5, a threshold setting system based on a tire pressure sensor includes the tire pressure sensor and a hand-held or ground terminal as described above; the handheld or ground terminal comprises a third MCU module, a low-frequency wireless transmitting unit and a high-frequency wireless receiving unit; when the alarm threshold value of the tire pressure sensor needs to be set, the set tire pressure alarm threshold value is input, and the third MCU module controls the low-frequency wireless transmitting units of the handheld or ground terminal to respectively transmit the low-frequency wireless transmitting units to the corresponding tire pressure sensors; when receiving an external tire pressure alarm threshold value setting instruction, the first MCU module of the tire pressure sensor timely reads the set threshold value and stores the set threshold value in a designated position of the storage unit, and compares the tire pressure value measured by the measuring unit with the set tire pressure alarm threshold value according to the set gap.

Preferably, the method is implemented by using the system as described above, and comprises the following steps:

step 1: inputting a set tire pressure alarm threshold value;

step 2: the handheld or ground terminal respectively transmits the set tire pressure alarm threshold values to the corresponding tire pressure sensors;

step 3: the tire pressure sensor transmits back new tire pressure alarm threshold data, the hand-held or ground terminal completes comparison after receiving the new tire pressure alarm threshold data, and the setting is completed if the values are consistent.

In practical application, the first MCU module can be selected from SP37 or SP40 of British flying and FXTH870X6 series TPMS special chips of Freescale.

In practical application, STM32F4 series single-chip microcomputer and Freescale MC9S08 series can be selected as core operation units of the second MCU module, the third MCU module and the fourth MCU module.

In practical application, the storage unit can be an EEPROM chip, a flash chip or an RAM chip to realize data storage.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.