Insect Detection Using Heated Chamber and Passive Infrared Sensor
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Solution Overview
Problem
Existing insect detection systems based on infrared sensors are ineffective in detecting insects that maintain the same temperature as their surroundings, as they can only detect temperature differences and not the insects themselves.
Innovation Solution
A device with an inner chamber heated to a temperature higher than the surroundings, equipped with a passive infrared sensor that emits an alarm signal upon detecting a change in infrared radiation due to the presence of an insect, allowing for the detection and monitoring of insects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a passive infrared sensor is used to detect insects, then the detection system can identify temperature differences, but it cannot detect insects that maintain the same temperature as their surroundings
Solution Approach 1:
The patent introduces a heated chamber as an intermediary environment between the sensor and the insect. The chamber is maintained at a higher temperature than the surrounding environment, creating a temperature differential that allows the passive infrared sensor to detect insects when they enter the chamber. This mediator (heated chamber) enables detection of insects that would otherwise be indistinguishable from their ambient temperature surroundings.
Solution Approach 2:
The patent changes the temperature parameter of the detection environment by heating the chamber to a temperature higher than the surrounding air. This parameter change creates a controlled thermal gradient that enhances the infrared radiation contrast between insects and their background, enabling the sensor to detect temperature differences and identify insect presence reliably.
2Measurement precision
If a heated chamber is used to attract insects, then insect detection becomes possible, but energy consumption increases
Solution Approach 1:
The patent applies partial heating by maintaining only a specific chamber volume at elevated temperature rather than heating a large area or continuous space. The heated chamber is confined to a limited volume where detection is needed, reducing overall energy consumption while still creating sufficient thermal contrast for insect attraction and detection.
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 the detection and monitoring of insects by attracting them with a warmer temperature and emitting an alarm signal when an insect enters the heated chamber, facilitating effective eradication measures.
Implementation Method 1
a passive infrared sensor enabled to detect infrared radiation that emits an alarm signal when it detects a change in infrared radiation in the inner chamber
Implementation Method 2
an inner heating base that has an electrical resistance for supplying heat and maintaining a temperature in said inner chamber
Data Source
AI summary
Device for detecting insects comprising as main elements an inner chamber that has a temperature higher than the temperature outside and a passive infrared sensor that emits an alarm signal when it detects a change in temperature in the inner chamber due to the presence of any animal, for example, an insect; which is very useful for the monitoring of insects in a determined area and the subsequent actuation for the eradication thereof.