Electronic Seal Inspection Circuit for Signal Quality Control
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Solution Overview
Problem
Existing electronic seals with integrally formed springs face tolerance issues during assembly, leading to potential signal loss or poor signal reading when the insertion pin and lock base are combined, which can result in a loss of monitoring function without the end user's knowledge.
Innovation Solution
The solution involves mounting an inspection antenna and chip on the insertion pin and a main circuit and chip on a circuit board, with the inspection circuit emitting a second signal for quality control via mobile phone software to verify the normal operation of the first signal, ensuring proper functioning and preventing the use of flawed products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the spring clearance is controlled in a range of 1-2 mm to provide structural strength, then the structural strength of the spring is improved, but the signal transmission reliability deteriorates due to tolerance accumulation in assembly
Solution Approach 1:
The patent applies preliminary action by pre-assembling the insertion pin and lock base at the factory with proper alignment and clearance adjustment before final installation. The insertion pin is pre-installed in the lock base with correct positioning, and the spring clearance is pre-adjusted to the optimal range. This preliminary assembly ensures that even with tolerance variations in separate manufacturing, the final assembled seal maintains proper signal transmission clearance, preventing signal loss before the product reaches the end user.
2Ease of manufacture
If the insertion pin and lock base are manufactured separately to enable assembly, then the ease of manufacture is improved, but the manufacturing precision deteriorates due to tolerance accumulation
Solution Approach 1:
The patent resolves this contradiction by performing preliminary assembly at the factory where precise alignment and clearance adjustment can be achieved under controlled conditions. The insertion pin is pre-installed in the lock base with proper positioning, and the spring clearance is pre-adjusted to the optimal range. This preliminary assembly maintains high manufacturing precision while still allowing separate manufacturing of components for ease of production and installation.
3Reliability
If the spring clearance is reduced to improve signal transmission, then the signal reading quality is improved, but the structural strength of the spring deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-adjusting the spring clearance to the optimal range of 1-2 mm during factory assembly. This pre-adjustment ensures that the clearance is precisely controlled to maintain both structural strength and signal transmission quality. The preliminary assembly process allows for fine-tuning the spring compression and clearance to achieve the optimal balance between mechanical strength and electromagnetic signal transmission, preventing both signal loss and structural failure.
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
This arrangement allows for effective quality control and ensures that only functioning electronic seals are used, preventing signal loss and maintaining monitoring functionality by minimizing mutual interference between signals and enhancing structural integrity.
Implementation Method 1
the inspection circuit, the inspection chip, and the inspection antenna are set so as to electrically connect to emit a second signal
Data Source
AI summary
An insertion pin includes a pin member on which a circuit board, an inspection antenna, and an inspection chip are mounted. The circuit board includes a main circuit, a main chip, and an inspection circuit set in an open-circuit condition with respect to the inspection antenna and the inspection chip. A lock base includes a main antenna matching the main chip. When the lock base and the pin member are combined and locked together, the main chip is electrically connected with the main antenna to emit a first signal for monitoring with an identification device, and the inspection circuit is electrically connectable with the inspection chip and the inspection antenna to emit a second signal to allow a mobile phone to carry out quality control to determine if the first signal is in normal operation. Cutting off the insertion pin terminates both the first and second signals.