CN205168070U

CN205168070U - Tire pressure monitoring system based on AVR singlechip and RF communications technique

Info

Publication number: CN205168070U
Application number: CN201520867911.4U
Authority: CN
Inventors: 刘益标
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-10-30
Filing date: 2015-10-30
Publication date: 2016-04-20
Anticipated expiration: 2025-10-30

Abstract

The utility model discloses a tire pressure monitoring system based on AVR singlechip and RF communications technique, including the button, the input electric connection of a button and a MCU module, the output of a MCU module still respectively with real -time clock module and LF emission module's input electric connection, LF emission module's output and LF receiving module input signal connection, LF receiving module's the output and the input electric connection of the 2nd MCU module. This tire pressure monitoring system based on AVR singlechip and RF communications technique sends data at set intervals one time, and the data of only gathering have deviated the standard value, just transmitter data immediately to saving the energy consumption, can detecting and send tire pressure sensor trouble information, detect the tire internal gas pressure when unusual in the system, alarm device can send at once the system in, light alarm signal, is used for reminding the user to examine and repair, change the tire.

Description

Based on the tire pressure monitoring system of AVR single chip and technology for radio frequency

Technical field

The application relates to tyre monitoring system technical field, is specially the tire pressure monitoring system based on AVR single chip and technology for radio frequency.

Background technology

As the component part that automobile is important, the factor of the primary concern of tyre performance is the air pressure of tire, and the air pressure of tire is too low or too highly all can affect the in-use performance of tire and reduce its service life, finally has influence on traffic safety.Pneumatic pressure monitoring system of tire is the ideal tools addressed this problem.The effect of system for monitoring pressure in tyre carries out real-time automatic monitoring to tire pressure in vehicle traveling process, and report to the police to tire flat and infrabar, to guarantee traffic safety.

Often there is a lot of defect in existing pneumatic pressure monitoring system of tire, existing tire pressure monitoring system in use, user cannot active inquiry tire state, only when tire internal gas pressure occurs abnormal, pneumatic pressure monitoring system of tire just can send signal reminding user, existing tire pressure monitoring system is not provided with real-time clock module, time tag cannot be provided for system, also cannot be other module with time standards, and existing pneumatic pressure monitoring system of tire does not possess fault logging module, time of origin and the fault parameter of fault cannot be provided to user, in existing pneumatic pressure monitoring system of tire, user cannot judge whether tire pressure sensor breaks down, this makes driving conditions be present in potential safety hazard, so we propose the tire pressure monitoring system based on AVR single chip and technology for radio frequency.

Utility model content

The object of the application is the tire pressure monitoring system provided based on AVR single chip and technology for radio frequency, to solve the problem proposed in above-mentioned background technology.

In order to solve the problems of the technologies described above, the application provides following technical scheme: based on the tire pressure monitoring system of AVR single chip and technology for radio frequency, comprise button, the input end of described button and the first MCU module is electrically connected, the mouth of described first MCU module is also electrically connected with the input end of real-time clock module and LF transmitter module respectively, the mouth of described LF transmitter module is connected with LF receiver module input end signal, the mouth of described LF receiver module and the input end of the second MCU module are electrically connected, described second MCU module and tire pressure sensor are bi-directionally connected, the mouth of described second MCU module is also electrically connected with the input end of RF transmitter module, the mouth of described RF transmitter module is connected with the input end signal of RF receiver module, the mouth of described RF receiver module and the input end of the first MCU module are electrically connected, the mouth of described first MCU module is also electrically connected with the input end of LCD MODULE and fault alarm module respectively, the mouth of described fault alarm module is also electrically connected with the input end of fault logging module and accident warning device respectively, the mouth of described fault logging module and the input end of LCD MODULE are electrically connected, the mouth of described LCD MODULE is electrically connected with LCDs.

Preferably, the mouth of described real-time clock module and the input end of LF transmitter module are electrically connected.

Preferably, described accident warning device comprises a warning indicator lamp and a buzzer phone.

Compared with prior art, the beneficial effect of the application is: be somebody's turn to do the tire pressure monitoring system based on AVR single chip and technology for radio frequency, by being provided with button, following work can be completed: tire parameter initialization, tire parameter setting value is inquired about, alarm logging is inquired about, real-time clock timing inquiry and amendment etc., enable the situation of user's active inquiry tire, under non-user query State, the data that pressure sensor collects do not depart from standard value, then send a secondary data at set intervals, only deviate from standard value in the data collected, just send data immediately, to save energy consumption, real-time clock module can produce various time tag for system works, for other module as time standard, fault logging module is used for record trouble time of origin, fault parameter value, when the second MCU module reads the state parameter of tire, and judge that whether the data read are successful, read and successfully just store and send data, if continuous several times failure, then send tire pressure sensor failure message, when systems axiol-ogy is abnormal to tire internal gas pressure, in system, warning device can send sound at once, visual alarm, in order to reminding user, tire is overhauled, change.

Certainly, the arbitrary product implementing the application must not necessarily need to reach above-described all technique effects simultaneously.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide further understanding of the present application, and form a application's part, the schematic description and description of the application, for explaining the application, does not form the improper restriction to the application.In the accompanying drawings:

Fig. 1 is the application's structured flowchart.

In figure: 1 button, 2 first MCU module, 3 real-time clock modules, 4LF transmitter module, 5LF receiver module, 6 second MCU module, 7RF transmitter module, 8RF receiver module, 9 tire pressure sensors, 10 LCD MODULEs, 11 fault alarm modules, 12 LCDs, 13 accident warning devices, 14 fault logging module.；

Detailed description of the invention

Drawings and Examples will be coordinated below to describe the embodiment of the application in detail, by this to the application how application engineering means solve technical matters and the implementation procedure reaching technology effect can fully understand and implement according to this.

Refer to Fig. 1, the application provides a kind of technical scheme: based on the tire pressure monitoring system of AVR single chip and technology for radio frequency, comprise button 1, the operation input of user is received by button 1, to realize human-computer interaction function, the input end of button 1 and the first MCU module 2 is electrically connected, it is large that first MCU module 2 has operating voltage range, the features such as antijamming capability is strong, adopt ATMEGA168 micro controller system, there is the SRAM memory of 1024B this micro controller system inside, the mouth of the first MCU module 2 is also electrically connected with the input end of real-time clock module 3 and LF transmitter module 4 respectively, the PCF8563 chip that real-time clock module 3 adopts, PCF8563 has multiple warning function, timer function, clock output function, the mouth of real-time clock module 3 and the input end of LF transmitter module 4 are electrically connected, the mouth of LF transmitter module 4 is connected with LF receiver module 5 input end signal, LF receiver module 5 is for receiving the query manipulation of initialization data and user, the mouth of LF receiver module 5 and the input end of the second MCU module 6 are electrically connected, second MCU module 6 adopts low-power consumption 8 the CMOS controller atm EGA48 micro controller systems based on AVR enhancement mode risc architecture, signal transmitting frequency between LF transmitter module 4 and LF transmitter module 5 is 125KHz, second MCU module 6 is bi-directionally connected with tire pressure sensor 9, tire pressure sensor 9 adopts SP12 chip, for the pressure in real-time monitoring tyres, temperature, and be converted to digital signal and output in the second MCU module 6 and carry out Storage and Processing, the mouth of the second MCU module 6 is also electrically connected with the input end of RF transmitter module 7, the mouth of RF transmitter module 7 is connected with the input end signal of RF receiver module 8, RF receiver module 8 receives the data that RF transmitter module 7 sends, RF receiver module 8 adopts the effect of T5743 chip module to be gathered by SP12, digital signal after the second MCU module 6 transforms, the first MCU module 2 is sent to process by radio frequency, the data that first MCU module 2 processing RF receiver module 8 is brought, and result carried LCD MODULE 10 to show, signal transmitting frequency between RF transmitter module 7 and RF receiver module 8 is 433.92MHz, the mouth of RF receiver module 8 and the input end of the first MCU module 2 are electrically connected, the mouth of the first MCU module 2 is also electrically connected with the input end of LCD MODULE 10 and fault alarm module 11 respectively, the mouth of fault alarm module 11 is also electrically connected with the input end of fault logging module 14 and accident warning device 13 respectively, accident warning device 13 comprises a warning indicator lamp and a buzzer phone, the mouth of fault logging module 14 and the input end of LCD MODULE 10 are electrically connected, the mouth of LCD MODULE 10 is electrically connected with LCDs 12, the display of system information is responsible for by LCDs 12.

Also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the commodity of a series of key element or system not only comprises those key elements, but also comprise other key elements clearly do not listed, or also comprise by this commodity or the intrinsic key element of system.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within the commodity or system comprising described key element and also there is other identical element.

Above-mentioned explanation illustrate and describes some preferred embodiments of the application, but as previously mentioned, be to be understood that the application is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in application contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the application, then all should in the protection domain of the application's claims.

Claims

1. based on the tire pressure monitoring system of AVR single chip and technology for radio frequency, comprise button (1), it is characterized in that: described button (1) is electrically connected with the input end of the first MCU module (2), the mouth of described first MCU module (2) is also electrically connected with the input end of real-time clock module (3) and LF transmitter module (4) respectively, the mouth of described LF transmitter module (4) is connected with LF receiver module (5) input end signal, the mouth of described LF receiver module (5) and the input end of the second MCU module (6) are electrically connected, described second MCU module (6) and tire pressure sensor (9) are bi-directionally connected, the mouth of described second MCU module (6) is also electrically connected with the input end of RF transmitter module (7), the mouth of described RF transmitter module (7) is connected with the input end signal of RF receiver module (8), the mouth of described RF receiver module (8) and the input end of the first MCU module (2) are electrically connected, the mouth of described first MCU module (2) is also electrically connected with the input end of LCD MODULE (10) and fault alarm module (11) respectively, the mouth of described fault alarm module (11) is also electrically connected with the input end of fault logging module (14) and accident warning device (13) respectively, the mouth of described fault logging module (14) and the input end of LCD MODULE (10) are electrically connected, the mouth of described LCD MODULE (10) is electrically connected with LCDs (12).

2. the tire pressure monitoring system based on AVR single chip and technology for radio frequency according to claim 1, is characterized in that: the mouth of described real-time clock module (3) and the input end of LF transmitter module (4) are electrically connected.

3. the tire pressure monitoring system based on AVR single chip and technology for radio frequency according to claim 1, is characterized in that: described accident warning device (13) comprises a warning indicator lamp and a buzzer phone.