Non-Contact Powered Wireless Temperature Sensor for Transport Carts
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Solution Overview
Problem
Conventional transport cart systems require electrical wiring for power supply, leading to system shutdowns and difficulties in retrofitting temperature sensors, which is undesirable in semiconductor manufacturing and similar environments.
Innovation Solution
A wireless sensor with a non-contact power receiving unit, measurement unit, and wireless transmission unit that obtains power from a preinstalled power supply line and transmits state values, such as temperature and voltage, without the need for additional wiring, using an E-shaped core for stable power induction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrical wiring is used to supply power to sensors, then the sensors can operate reliably, but the system requires shutdown for wiring work and becomes difficult to retrofit
Solution Approach 1:
The patent replaces the mechanical wiring system with a non-contact power supply system using electromagnetic induction. The power supply line and sensor coil interact through magnetic coupling without physical contact, eliminating the need for electrical wiring installation and enabling easy retrofitting while maintaining reliable power supply for sensor operation
Solution Approach 2:
The patent introduces a magnetic field as an intermediary between the power supply line and the sensor coil. The alternating current in the power supply line generates a magnetic field that induces current in the sensor coil, serving as a non-contact power transmission medium that bridges the power source and sensor without direct electrical connection
2Power
If electrical wiring is installed for power supply, then sufficient power can be delivered to sensors, but the installation time increases and operations must be shut down
Solution Approach 1:
The patent replaces the time-consuming wiring installation process with a non-contact power transmission system. The power supply line can be installed independently without coordinating sensor installation, and power is transmitted through electromagnetic coupling, eliminating the need for system shutdown and significantly reducing installation time while maintaining adequate power delivery
3Stability of the object's composition
If conventional wired sensors are used, then stable power supply is achieved, but the system complexity increases due to wiring requirements
Solution Approach 1:
The patent replaces the complex wiring system with a simple non-contact power transmission mechanism. The power supply line and sensor coil interact through electromagnetic induction without physical connections, eliminating switches, connectors, and insulation requirements, thereby reducing system complexity while maintaining stable power supply through controlled magnetic coupling
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
Enables easy retrofitting and monitoring of state values in existing mobility systems without disrupting operations, providing stable power and simplifying electrical wiring arrangements.
Implementation Method 1
The non-contact power receiving unit obtains electric power from the power supply line in a non-contact manner
Data Source
AI summary
A temperature sensor device measures a temperature related to a transport cart system and wirelessly transmits the measured temperature. In the transport cart system a transport cart obtains electric power from the power supply line in a non-contact manner. The temperature sensor device includes an E-shaped core, a sensor body, and a temperature sensing substrate. The E-shaped core obtains electric power from the power supply line in a non-contact manner. The sensor body operates by electric power supplied by the E-shaped core and measures the temperature in the vicinity of the terminal block of the transport cart system. The temperature sensing substrate operates by electric power supplied by the E-shaped core and wirelessly transmits the temperature measured by the sensor body.