Modular Tire Pressure Sensor with Bluetooth and Gravity Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing tire pressure monitoring systems (TPMS) face issues with waste and increased cost due to the integration of sensors with tire nozzles, and they lack features for abnormal displacement detection and convenient vehicle location.
Innovation Solution
A wireless tire pressure sensor module using Bluetooth signals with reduced power consumption, incorporating a gravity sensor for anti-theft alerts and GPS/GLONASS integration for vehicle location, replacing conventional radio signals and integrating with handheld mobile devices for real-time data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the tire pressure sensor is integrated with the tire nozzle, then the tire pressure monitoring function is achieved, but the original nozzle is wasted and the cost increases
Solution Approach 1:
The tire pressure monitoring system is divided into separate components: a reusable original nozzle remains on the tire, while a detachable sensor module can be installed independently. This segmentation allows the nozzle to serve its original function without being wasted, while still enabling tire pressure monitoring through the separate sensor module.
2Reliability
If the tire pressure sensor is integrated with the tire nozzle, then the tire pressure monitoring function is achieved, but the cost increases
Solution Approach 1:
The sensor module is designed to be universally compatible with standard tire nozzles, allowing it to work with existing nozzle infrastructure. This multi-functionality enables the same sensor module to be used across different tire types and vehicles, reducing per-unit costs and eliminating the need for specialized integrated nozzle-sensor assemblies.
3Loss of information
If conventional radio signals (434 MHz or 315 MHz) are used for wireless transmission, then the transmission function is achieved, but the power consumption is high
Solution Approach 1:
The wireless transmission system transitions from conventional radio frequencies (434 MHz or 315 MHz) to Bluetooth technology, which operates at different frequency parameters and employs more efficient power management protocols. This parameter change enables lower power consumption while maintaining reliable data transmission between the sensor module and mobile devices.
4Reliability
If basic tire pressure sensing is implemented, then the monitoring function is achieved, but the anti-theft and vehicle location functions are unavailable
Solution Approach 1:
Multiple functional modules are merged into a single integrated sensor system: tire pressure sensing, gravity detection for anti-theft alerts, and GPS/GLONASS location tracking. This combination allows the system to perform basic monitoring while simultaneously providing enhanced security and location services through the same hardware platform.
5Reliability
If the sensor module is integrated with the nozzle, then the monitoring function is achieved, but the device complexity increases
Solution Approach 1:
The sensor module is extracted from the nozzle structure, allowing it to be installed independently on the tire valve stem or rim. This extraction simplifies the overall system architecture by separating the sensing functions from the nozzle, reducing integration complexity while maintaining monitoring effectiveness.
Data Source
AI summary
The tire pressure sensor module contains a casing, a nozzle, a sleeve element, a fastening element, and a two-way tire information transmission and sensory system inside the casing. The casing has a trough and an air opening. The nozzle contains a nozzle mouth and a nozzle base. The nozzle base is joined to the casing, and the mouth is threaded through the sleeve element. The nozzle and the sleeve element are secured to the casing by the fastening element through the trough. The two-way tire information transmission and sensory system contains a battery, a micro-controller circuit, a low-power-consumption Bluetooth wireless transceiver circuit, a boosting/regulating circuit, a pressure sensor, an operation amplifier, a gravity sensor, a temperature sensor, and an antenna.