Multi-channel Programmable Detection Sensor with Electronic Programming
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Solution Overview
Problem
Existing detection sensors require multiple manual switches for adjusting operational modes and parameters, which becomes impractical as sensors are miniaturized, leading to a need for a system that enables multi-function programming with minimal switching devices.
Innovation Solution
A multi-channel programmable detection sensor with a single board design, featuring independent channels with emitters and detectors, programmable by a processor. This system uses a microcontroller to adjust amplifier gain, set signal thresholds, and optimize light intensity, reducing the need for manual switches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple manual switches are used to adjust operational modes and parameters, then the sensor can be programmed for different functions, but the device size increases and complexity increases
Solution Approach 1:
The patent replaces manual mechanical switches with an electronic programming system. A processor receives programming signals and automatically configures the sensor's operational modes and parameters, eliminating the need for multiple physical switches while maintaining full programming capability.
Solution Approach 2:
The patent implements a universal programming interface that can configure multiple operational modes and parameters through a single system. The processor-based control unit can adapt the sensor to different functions (through-beam, reflective, low contrast applications) using software configuration rather than dedicated hardware switches for each mode.
2Volume of moving object
If the sensor is miniaturized, then the size is reduced, but the space for switches and adjustment mechanisms is reduced
Solution Approach 1:
The patent replaces physical adjustment mechanisms with electronic control. The processor receives programming signals and configures the sensor parameters electronically, eliminating the need for physical switches and adjustment components that would occupy valuable space in a miniaturized sensor design.
Solution Approach 2:
The sensor includes automatic gain adjustment and adaptive threshold setting capabilities that allow the system to self-optimize without manual intervention. The processor automatically measures background and target states, compares signal differences, and sets optimal amplifier gain and thresholds, reducing the need for manual adjustment mechanisms.
3Measurement precision
If amplifier gain is manually adjusted, then the signal amplification can be optimized, but the operational complexity increases
Solution Approach 1:
The patent implements automatic gain optimization where the processor measures the electrical signal in both target and background states at different gain levels, compares the signal differences, and automatically sets the optimal amplifier gain. This self-adjusting capability eliminates manual gain adjustment while maintaining optimal signal amplification.
Solution Approach 2:
The system uses feedback from the measured signal levels to automatically adjust the amplifier gain. The processor continuously monitors the electrical signals from the photodetector and adjusts the gain to maximize the contrast between target and background states, providing optimal signal amplification without manual intervention.
4Adaptability or versatility
If multiple switches are used for different operating parameters, then the sensor can be configured for various applications, but the manufacturing cost increases
Solution Approach 1:
The patent replaces multiple physical switches with a single processor-based control system. This electronic programming approach reduces the bill of materials and assembly complexity, lowering manufacturing costs while maintaining the ability to configure multiple operational modes and parameters through software.
Solution Approach 2:
The universal processor-based programming interface can configure all operational modes and parameters through a single system, eliminating the need for multiple dedicated switches for each function. This consolidation reduces component count and manufacturing complexity while maintaining full versatility across different sensor applications.
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 system allows for efficient multi-function programming of detection sensors with minimal hardware adjustments, achieving fast response times and optimal performance in various applications, including low contrast scenarios, while minimizing size and operational complexity.
Implementation Method 1
an emitter for generating a light signal intended to be blocked by or reflected from a target object
Implementation Method 2
a detector for generating an electronic signal that represents the presence, absence or condition of the object based upon the signal (e.g., reflected/through light) returned to the sensor
Data Source
AI summary
Single board multi-channel programmable detection sensor is disclosed. The sensor has a processor operatively connected to the emitter driver, and a photodetector for controlling one or more operational parameters of the sensor in response to a program. Sensor outputs the TTL signal when desired level of light attenuated or transmitted through the system of fiber optics sensors. The processor sets triggering levels of the signal detected by the sensor in analog fast comparator circuit to threshold based on the signal difference pre-set and actual values.