Duplex Bluetooth Tire Pressure Sensing for Fast Low-Power Positioning
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Solution Overview
Problem
Conventional tire pressure detectors engage in one-way data transmission, leading to power wastage and inefficiencies due to repeated transmission of locating data, errors in data reception, and the need for vehicle shutdown for re-transmission, which prolongs the positioning process and consumes excessive power.
Innovation Solution
A duplex Bluetooth transmission system with a transceiver host and tire pressure detectors that enable simultaneous duplex signal transmission for locating and tire condition detection, allowing the host to control the tire pressure detectors' programs and limit data transmission, ensuring efficient and error-free data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the tire pressure detector uses one-way simplex transmission to send locating data to the transceiver host, then the system structure is simple, but power is wasted due to repeated transmissions and the positioning process is prolonged
Solution Approach 1:
The patent inverts the traditional one-way transmission model by implementing duplex communication where the transceiver host actively controls the tire pressure detector to perform localization and transmission operations. The host sends control packets to start/stop localization programs and limits packet transmission, transforming the detector from a passive transmitter to an actively controlled device that only transmits when instructed, thereby eliminating unnecessary power consumption while maintaining system simplicity
Solution Approach 2:
The patent introduces feedback control mechanisms where the transceiver host receives locating data from the tire pressure detector, validates it, and sends control packets back to the detector to manage subsequent transmission operations. This feedback loop ensures that transmission occurs only when necessary and valid, preventing power waste from repeated or unnecessary transmissions while maintaining simple device architecture
2Reliability
If the tire pressure detector continuously transmits locating data to ensure data availability, then data reliability is improved, but power consumption increases and transmission errors may occur
Solution Approach 1:
The patent implements periodic action by having the transceiver host send control packets at specific intervals to trigger localization and transmission operations only when needed. The host validates received data and determines when new transmission is necessary, creating a periodic control rhythm that ensures data availability while eliminating continuous transmission and associated power wastage
Solution Approach 2:
The tire pressure detector performs self-service by executing localization programs and generating transmission packets only when triggered by control packets from the host. The detector autonomously manages its own transmission operations based on host instructions, ensuring data is transmitted when needed without requiring continuous host intervention or continuous transmission, thus balancing reliability with energy efficiency
3Reliability
If the tire pressure detector performs localization repeatedly after vehicle restart to ensure positioning accuracy, then positioning reliability is improved, but the positioning process is prolonged and user experience deteriorates
Solution Approach 1:
The patent applies preliminary action by having the transceiver host validate locating data in advance and send control packets to the tire pressure detector before vehicle operation begins or during idle periods. The host prepares the system by establishing valid positioning data and configuring transmission parameters ahead of time, so that when the vehicle restarts, the detector can quickly resume operations without performing time-consuming localization procedures, thus maintaining positioning reliability while reducing positioning time
Solution Approach 2:
The transceiver host continuously monitors and validates locating data through feedback mechanisms, detecting when positioning is complete and accurate. Once valid positioning is confirmed, the host sends control packets to stop further localization operations and limit subsequent transmission to only essential data. This feedback control prevents unnecessary repeated localization after restart, maintaining positioning reliability while significantly reducing the time lost to redundant positioning operations
4Loss of information
If the tire pressure detector transmits all locating data to ensure complete information, then data completeness is improved, but transmission errors increase and system efficiency decreases
Solution Approach 1:
The patent extracts only the essential and valid locating data for transmission by implementing host-controlled packet limiting. The transceiver host validates incoming data and sends control packets to the tire pressure detector that specify which data packets should be transmitted and which should be suppressed. This extraction approach ensures that only necessary, error-free data is transmitted, maintaining data completeness for essential information while eliminating extraneous data that could cause transmission errors and improve system efficiency
Data Source
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AI summary
A duplex Bluetooth transmission tire pressure system and a method thereof are provided. The system includes a Bluetooth tire pressure detector and a transceiver host, and the two can duplex Bluetooth transmit to each other, so that to complete locating and tire condition detecting. The transceiver host controls a locating program that controls the Bluetooth tire pressure detector to start or stop and limit the transmitting packet of the tire condition program of the Bluetooth tire pressure detector.