Tire State Monitoring Transmitter Angle Extraction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Tire condition monitoring systems face increased power consumption when transmitting data at multiple specific angles, particularly due to the inclusion of angle information in the transmission data, which prolongs data length and battery life.
Innovation Solution
The system employs a transmitter and receiver configuration where the transmitter generates data without angle information, using a traveling state detection value to determine specific transmission angles, and the receiver identifies the corresponding angle using a stored correspondence relationship, allowing for shorter data transmission and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If transmission data includes angle information to enable position identification, then the receiver can identify the wheel assembly, but the data length increases and power consumption increases
Solution Approach 1:
The invention extracts the angle information from the transmission data and stores it separately in a correspondence relationship table in the receiver. The transmitter only sends tire condition data and a detection value, while the receiver looks up the specific angle from the stored correspondence relationship based on the detection value, thereby eliminating angle information from the transmission data and reducing power consumption
Solution Approach 2:
The receiver pre-stores the correspondence relationship between detection values and specific angles in a table before actual operation. This preliminary action allows the receiver to quickly determine the specific angle without receiving it in the transmission data, thereby reducing the data length and power consumption during normal operation
2Reliability
If transmission data is transmitted at multiple specific angles to avoid null points, then signal reception reliability improves, but the need for angle information increases data length
Solution Approach 1:
The invention extracts angle-related information from the transmission data and replaces it with a compact detection value that serves as an index. The receiver uses this detection value to retrieve the actual specific angle from the pre-stored correspondence relationship, maintaining the ability to handle multiple specific angles while minimizing transmission data length and power consumption
Data Source
Figure 1
Figure 2~3
Figure 4~6
AI summary
Transmitters are respectively attached to the wheel assemblies of a vehicle that includes rotation angle detecting sections that detect rotation angles of the respective wheel assemblies. Each transmitter includes a power source of the transmitter, a data generating section that is configured to generate transmission data that includes tire condition data indicating the condition of the tire detected by a condition detecting section and does not include data indicating the detection value of a traveling state detecting section, a storage section that stores a correspondence relationship in which ranges obtained by dividing possible values of the detection value of the traveling state detecting section are respectively assigned to a plurality of specific angles set for the rotation angles of the wheel assemblies, and a transmission control section capable of performing specific angle transmission in which the transmission control section transmits the transmission data from the transmitting section when detecting that the rotation angle of the wheel assembly is any of the specific angles. When performing the specific angle transmission, the transmission control section transmits the transmission data when detecting that the rotation angle is the specific angle that corresponds to the detection value of the traveling state detecting section.