CN212022216U - Intelligent automobile tire pressure early warning device based on wireless transmission - Google Patents
Intelligent automobile tire pressure early warning device based on wireless transmission Download PDFInfo
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- CN212022216U CN212022216U CN201921723723.9U CN201921723723U CN212022216U CN 212022216 U CN212022216 U CN 212022216U CN 201921723723 U CN201921723723 U CN 201921723723U CN 212022216 U CN212022216 U CN 212022216U
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Abstract
An intelligent early warning device for automobile tire pressure based on wireless transmission comprises a single chip microcomputer, a power supply module, a tire pressure sensor module, a wireless transmission module, a touch screen central control display module and an acousto-optic alarm; the tire pressure sensing module, the wireless transmission module and the single chip microcomputer are connected in series, the power supply module is respectively electrically connected with the single chip microcomputer, the automobile tire pressure sensing module, the wireless transmission module, the touch screen central control display module and the sound and light alarm module, and the touch screen central control display module, the sound and light alarm module and the single chip microcomputer are electrically connected. The intelligent early warning device can accurately acquire tire pressure monitoring data, realizes man-machine interaction through wireless transmission, can forecast tire burst according to the temperature of the tire, and reminds a driver of the tire condition before driving so as to avoid causing out of control of the automobile. The intelligent automobile tire pressure early warning device is stable in operation, has the characteristics of low power consumption and low cost, is easy to maintain and the like, and is worthy of being popularized in a large range.
Description
Technical Field
The utility model relates to an automobile tire pressure early warning intelligent device specifically is an automobile tire pressure intelligent early warning device based on wireless transmission.
Background
In recent years, the safety performance of automobiles is the primary performance requirement of automobiles, and researches show that the most worried and difficult-to-prevent fault of a driver is tire fault along with the running process of the automobiles, particularly high-speed running, and the fault is an important root cause of all sudden and serious traffic accidents. Therefore, automobile tire pressure monitoring has become one of the main research directions of modern automobiles.
The Tire Pressure Monitoring System (TPMS) is mainly characterized in that corresponding sensors are arranged in automobile tires to acquire pressure and temperature signals of the tires in real time, and when the acquired signal value exceeds the preset range of an automobile safety control system, the system sends out an alarm signal to remind a driver to take corresponding treatment measures so as to ensure safe driving. The measurement result of the sensor of the conventional tire pressure monitoring device is greatly influenced by the environment, the anti-interference capability is weak, the stability is poor, the precision is low, the collected tire pressure data cannot be displayed and counted by liquid crystal in real time, and the intellectualization of human-computer interaction cannot be realized.
Therefore, it is necessary to develop an intelligent tire pressure early warning device capable of accurately collecting tire pressure monitoring data and realizing human-computer interaction, and the intelligent tire pressure early warning device can forecast tire burst according to the temperature of a tire and remind a driver of the condition of the tire before driving so as to avoid causing out-of-control of the automobile.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide an automobile tire pressure intelligence early warning device based on wireless transmission to solve the problem that meets in the automobile tire monitoring process.
In order to solve the problem existing in the background art, the technical scheme of the utility model is as follows: an intelligent early warning device for automobile tire pressure based on wireless transmission comprises a single chip microcomputer, a power supply module, an automobile tire pressure sensor module, a wireless transmission module, a touch screen central control display module and an acousto-optic alarm; the automobile tire pressure sensing module, the wireless transmission module and the single chip are connected in series, the power supply module is respectively electrically connected with the single chip, the automobile tire pressure sensing module, the wireless transmission module, the touch screen central control display module and the sound-light alarm module, and the touch screen central control display module, the sound-light alarm module and the single chip are electrically connected.
As an optimized technical scheme of the utility model, the singlechip adopt STM32F103 singlechip, the consumption is lower, conversion rate is higher, data transmission speed is very fast, functional performance and economic performance are higher.
As an optimal technical scheme of the utility model, car tire pressure sensing module adopt be MPXY8020A sensing module, its inside baroceptor, temperature sensor and the digital interface circuit of having integrateed, measurement accuracy is high, the integrated level is high and with low costs.
As a preferred technical scheme of the utility model, the monolithic transceiver chip who adopts the universal ISM frequency channel in the world, operating frequency is at 2.4-2.5GHz, comprises complete integrated frequency synthesizer, power amplifier, crystal oscillator, demodulator, modulator and enhancement mode ShockBurst protocol engine.
As an optimal technical scheme of the utility model, the liquid crystal display module control display module in adopting the TFTLCD touch-sensitive screen, TFTLCD is resistance-type touch-control screen, resolution ratio is big and the accuracy is high, accomplishes handwriting recognition and human-computer interaction through pressure sensing, the screen is difficult to receive the influence of vapor, dust and greasy dirt simultaneously, economic performance is higher.
The utility model discloses beneficial effect does: the device adopts MPXY8020A automobile tire pressure sensing module, and accuse display module in NRF24L01 wireless transmission module and the TFTLCD touch-sensitive screen can real-time supervision automobile tire pressure and temperature, and the automobile tire pressure and the temperature of the collection through wireless communication transmission will show on the touch display screen of host computer, and the data real-time analysis processing will be gathered to the host computer simultaneously, draws tire pressure and temperature change curve, provides the monitoring trend. The circuit structure is simple, the number of components is less, the measurement accuracy is higher, the practicability is stronger, and the tire pressure and temperature information of the tire can be timely and accurately obtained for a driver, so that the device is worthy of being popularized in a large range.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a power supply circuit diagram of the automobile tire pressure and temperature acquisition part of the power supply module of the present invention.
Fig. 3 is the power supply circuit diagram of the power supply module of the present invention, which is used for controlling the power supply circuits of the liquid crystal in the display module in the wireless transmission module, the single chip microcomputer, the keys and the touch screen.
Fig. 4 is an internal circuit diagram of the wireless transmission module of the present invention.
Fig. 5 is a schematic circuit diagram of the wireless transmission module of the present invention.
Fig. 6 is a circuit diagram of the automobile tire pressure sensing module of the present invention.
Fig. 7 is a circuit diagram of the touch screen central control display module of the present invention.
Fig. 8 is a circuit diagram of the sound and light alarm module of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings in the embodiments of the present invention will be fully described below. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the following technical solutions are adopted in the present embodiment: an intelligent early warning device for automobile tire pressure based on wireless data transmission comprises a single chip microcomputer, a power supply module, an automobile tire pressure sensor module, a wireless transmission module, a touch screen central control display module and an acousto-optic alarm; the automobile tire pressure sensing module, the wireless transmission module and the single chip microcomputer are connected in series, the power supply module is respectively electrically connected with the single chip microcomputer, the tire pressure sensing module, the wireless transmission module, the touch screen central control display module and the sound and light alarm module, and the touch screen central control display module, the sound and light alarm module and the single chip microcomputer are electrically connected.
Fig. 2 to fig. 3 are power supply module circuit diagrams, wherein a LM2596 chip and a LM2576 chip are used to realize voltage stabilization, and +12V and +5V voltages are output, an ICL7660S low-power polarity reversal power supply converter is used to obtain-12V and-5V voltages, and an AMS1117-3.3V chip is used to output 3.3V voltage for the stable operation of the single chip microcomputer.
Fig. 4-5 are circuit diagrams of wireless transmission modules employing an NRF24L01 wireless transceiver chip, the wireless transceiver including a frequency generator, an enhanced "SchockBurst" mode controller, a power amplifier, a crystal oscillator, a modulator, and a demodulator, wherein the output power and communication channel are programmable. NRF24L01 has low power consumption, and when the power is transmitted at-6 dBm, the working current is only 9 mA; when receiving, the working current is only 12.3mA, and the plurality of low-power working modes (power-down mode and idle mode) make the energy-saving design more convenient.
Fig. 6 is a circuit diagram of an automotive tire pressure sensing module, and an MPXY8020A chip is integrated with a variable capacitance pressure sensing element, a temperature sensing element and an internal circuit with a wake-up function, and is packaged in an SSOP subminiature manner, and a media protection filter and a low-power-consumption voltage-withstanding monitoring system are built in the module. The pressure sensing element used is a capacitive sensor that is micro-machined on the surface and the temperature sensing element is a thermistor.
Fig. 7 is a circuit diagram of a central control display module of a touch screen, a TFTLCD is a resistive touch screen, handwriting recognition and human-computer interaction are completed through pressure sensing, accuracy is high, and the screen is not easily affected by water vapor, dust and oil stains; the low-voltage application and the low driving voltage are adopted, so that the use safety and the reliability are high; and completing the tasks of switching electrode voltage, collecting the voltage value at the contact point and realizing A/D conversion.
Fig. 8 is a circuit diagram of an acousto-optic alarm module, which mainly uses a buzzer to realize an alarm function, uses SH69P43 as a control chip, and uses a 4MH crystal oscillator as a main oscillator. The voltage type buzzer mainly comprises a multivibrator, a piezoelectric buzzer, an impedance matcher, a resonator, a shell and the like. When the power supply is switched on, the multivibrator starts to vibrate and outputs 1.5-2.5KHZ audio signals, and the impedance matcher pushes the piezoelectric buzzer to sound.
The single chip microcomputer adopts an STM32F103 single chip microcomputer, so that the power consumption is low, the conversion rate is high, the data transmission speed is high, and the functional performance and the economic performance are high.
Claims (7)
1. An intelligent early warning device for automobile tire pressure based on wireless transmission comprises a single chip microcomputer, a power supply module, a tire pressure sensor module, a wireless transmission module, a touch screen central control display module and an acousto-optic alarm module; the tire pressure monitoring system is characterized in that the tire pressure sensor module, the wireless transmission module and the single chip microcomputer are connected in series, the power supply module is respectively and electrically connected with the single chip microcomputer, the tire pressure sensor module, the wireless transmission module, the touch screen central control display module and the sound-light alarm module, and the touch screen central control display module, the sound-light alarm module and the single chip microcomputer are electrically connected.
2. The intelligent early warning device for automobile tire pressure based on wireless transmission as claimed in claim 1, wherein: the single chip microcomputer adopts an STM32F103 single chip microcomputer.
3. The intelligent early warning device for automobile tire pressure based on wireless transmission as claimed in claim 1, wherein: the power supply module adopts an LM2596 chip and an LM2576 chip to realize voltage stabilization, and adopts an AMS1117-3.3V chip to output 3.3V voltage for the singlechip to work stably.
4. The intelligent early warning device for automobile tire pressure based on wireless transmission as claimed in claim 1, wherein: the tire pressure sensor module adopts an MPXY8020A chip which integrates a pressure sensing element with a variable capacitor, a temperature sensing element and an internal circuit with a wake-up function, adopts SSOP ultra-small package, and is internally provided with a media protection filter and a pressure-resistant monitoring system with low power consumption.
5. The intelligent early warning device for automobile tire pressure based on wireless transmission as claimed in claim 1, wherein: the tire pressure sensor module adopts an integrated pressure sensing element which is a capacitance sensor processed by surface micromachining, and a temperature sensing element which is a thermistor.
6. The intelligent early warning device for automobile tire pressure based on wireless transmission as claimed in claim 1, wherein: the touch screen central control display module is a resistance type touch screen.
7. The intelligent warning device for automobile tire pressure based on wireless transmission as claimed in claim 1, wherein said wireless transmission module employs NRF24L01 wireless transceiver chip, the wireless transceiver chip includes frequency generator, mode controller, power amplifier, crystal oscillator, modulator and demodulator, and the output power and communication frequency channel can be configured by program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921723723.9U CN212022216U (en) | 2020-06-24 | 2020-06-24 | Intelligent automobile tire pressure early warning device based on wireless transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921723723.9U CN212022216U (en) | 2020-06-24 | 2020-06-24 | Intelligent automobile tire pressure early warning device based on wireless transmission |
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| CN212022216U true CN212022216U (en) | 2020-11-27 |
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| CN201921723723.9U Expired - Fee Related CN212022216U (en) | 2020-06-24 | 2020-06-24 | Intelligent automobile tire pressure early warning device based on wireless transmission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114162285A (en) * | 2021-11-09 | 2022-03-11 | 中船澄西船舶修造有限公司 | Sectional manufacturing jig frame |
-
2020
- 2020-06-24 CN CN201921723723.9U patent/CN212022216U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114162285A (en) * | 2021-11-09 | 2022-03-11 | 中船澄西船舶修造有限公司 | Sectional manufacturing jig frame |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201127 Termination date: 20210624 |
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| CF01 | Termination of patent right due to non-payment of annual fee |