Multi-Axis Photoelectric Sensor Ambient Light Segmentation
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Solution Overview
Problem
Conventional multi-optical axis photoelectric sensors struggle to accurately identify the source of ambient light among multiple optical axes, leading to increased setup time and inefficiency, especially in environments with many sensors or long sensor heads.
Innovation Solution
A multi-optical axis photoelectric sensor device with a light emitting part, a light receiving part, a process part, and an output part that generates and displays detailed light receiving information for each optical axis, allowing operators to precisely locate and quantify ambient light sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a display device is provided to show ambient light detection, then the operator can easily find that ambient light is inputted, but the operator cannot find which optical axis has the incident ambient light
Solution Approach 1:
The patent divides the ambient light information display into segmented indicators corresponding to each optical axis. Each light receiving element has its own display indicator, allowing the operator to identify which specific optical axis is receiving ambient light. This segmentation resolves the contradiction by providing both detection capability and axis identification simultaneously.
2Area of stationary object
If multi-optical axis photoelectric sensors are closely set in a manufacturing field, then space is saved, but light from one sensor becomes ambient light for another sensor causing malfunction
Solution Approach 1:
The patent implements a feedback mechanism where each light receiving element displays the amount of ambient light it receives through corresponding indicators. This allows operators to identify which sensors are affected by inter-sensor interference and adjust their positions or shielding accordingly, resolving the contradiction between space savings and interference prevention.
3Measurement precision
If there are many optical axes because a sensor head is long, then detection coverage is improved, but it takes much time for the operator to specify the generation source of ambient light
Solution Approach 1:
The patent provides separate display indicators for each light receiving element, allowing operators to immediately identify which specific optical axis is receiving ambient light. This eliminates the need to check each optical axis sequentially, reducing identification time while maintaining comprehensive detection coverage across multiple optical axes.
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 operators to quickly and accurately determine the light receiving state of ambient light across multiple optical axes, reducing setup time and improving efficiency by providing detailed light receiving information and visual indicators.
Implementation Method 1
a light receiving part in which the light receiving elements as many as the light emitting elements are arranged in a row... each light receiving element corresponding to each light emitting element receives the light and outputs the amount of received light
Data Source
AI summary
A process circuit sets a plurality of light emitting elements in a state in which light is not emitted through a process circuit, and receives a signal S1 corresponding to received ambient light from each of a plurality of light receiving elements. The process circuit generates light receiving information (data DT) showing the light receiving state of the ambient light with respect to each predetermined number of light receiving elements among the plurality of light receiving elements. The process circuit transmits the data DT to the outside. The personal computer receives the data DT through a communication unit and displays it. In a sensor SNS, the amount of light received can be displayed with respect to each optical axis by the personal computer. Thus, an operator can find the light receiving state of the ambient light in more detail than the conventional sensor.