Tire Condition Detection Valve Stem Capacitance Control
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Solution Overview
Problem
Existing tire condition detecting apparatuses face high power consumption issues, which shorten the life of their batteries and are not efficiently managed.
Innovation Solution
A tire condition detecting apparatus with a control section that switches between normal and power saving modes based on detected changes in the valve stem's electrical properties, reducing standby time for signal reception, especially when the vehicle is moving or a predetermined time has elapsed, thereby minimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiving section is maintained in a standby state to receive wirelessly transmitted signals from external devices, then the ability to receive signals is improved, but the power consumption increases
Solution Approach 1:
The receiving section dynamically switches between standby state and low-power state based on detected capacitance changes. The control section adjusts the operational state of the receiving section according to the electrical property changes detected by the property detecting section, optimizing the balance between signal reception capability and power consumption.
Solution Approach 2:
The system changes the operational parameter of the receiving section from standby to low-power state based on detected capacitance changes. This parameter change allows the system to reduce power consumption while maintaining the ability to receive signals when needed, as the control section can switch back to standby state when capacitance changes indicate a need for signal reception.
2Speed
If the control mode is switched to normal mode to receive signals frequently, then the signal reception responsiveness is improved, but the battery life decreases
Solution Approach 1:
The system employs periodic monitoring of capacitance changes to determine when to switch between normal mode and low-power mode. Instead of maintaining continuous standby operation, the control section periodically checks electrical property changes and adjusts the receiving section's operational state accordingly, extending battery life while maintaining periodic signal reception capability.
Solution Approach 2:
The control section uses feedback from the property detecting section to dynamically adjust the receiving section's operational state. When capacitance changes are detected, the system switches to normal mode for signal reception; when no changes are detected, it switches to low-power mode, creating a feedback-based adaptive system that optimizes battery life while maintaining signal reception responsiveness.
3Duration of action of stationary object
If the receiving section operates in low-power mode to reduce power consumption, then the battery life is extended, but the signal reception capability is reduced
Solution Approach 1:
The property detecting section performs preliminary detection of capacitance changes before the system needs to receive signals. By detecting electrical property changes in advance, the system can switch to normal mode proactively when changes are detected, ensuring signal reception capability is maintained when needed while spending most time in low-power mode to extend battery life.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly reduces power consumption associated with receiving wirelessly transmitted signals, extending the battery life of the apparatus.
Implementation Method 1
the property detecting section is configured to detect an electrical property of the valve stem... the property detecting section may be configured to detect a capacitance of the valve stem
Implementation Method 2
a battery, which is a power source for the tire condition detecting apparatus
Implementation Method 3
a transmitting section configured to wirelessly transmit a signal containing information detected by the condition detecting section
Implementation Method 4
a receiving section capable of receiving the signal wirelessly transmitted from an external device
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A tire condition detecting apparatus includes a condition detecting section, a transmitting section, a receiving section, a control section, a property detecting section, and a battery, which is a power source for the apparatus. The condition detecting section detects the condition of the tire, and the transmitting section wirelessly transmits a signal containing information detected by the condition detecting section. The receiving section is capable of receiving signals wirelessly transmitted from external devices, and the control section controls the transmitting section and the receiving section. The property detecting section detects the electrical property of the valve stem. The control section operates in a control mode that is selected from a normal mode and a power saving mode. In the normal mode, the receiving section is maintained in a standby state, in which the receiving section is capable of receiving a wirelessly transmitted signal from the external device. In the power saving mode, power consumption associated with reception of the wirelessly transmitted signal from the external device is less than that in the normal mode. When the amount of change in the electrical property of the valve stem detected by the property detecting section exceeds a reference change amount, the control section switches the control mode to the normal mode. The control section also switches the control mode to the power saving mode when a termination condition is met in the normal mode.