Laser Sensor Node Wireless Imaging for False Actuation Reduction

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Solution Overview

Problem

Existing remote sensing devices are prone to false actuations, including false negatives and false positives, due to environmental factors and misidentification of objects, which affects their accuracy in detecting and imaging objects.

Innovation Solution

A device comprising a sensor node with a microcomputer, camera, and wireless radio for transmitting images to a display node, utilizing various sensors such as laser, range, motion, heat, and infrared sensors, and incorporating multiple sensor nodes for communication and improved object detection and imaging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single sensor is used for remote sensing, then the device complexity is low, but the reliability of object detection is reduced due to false actuations

Engineering Contradiction:
Improvereliability of object detectionVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The remote sensing device is divided into multiple independent sensor nodes, each capable of detecting objects and transmitting data. This segmentation allows the system to reduce false actuations through distributed sensing while maintaining manageable complexity at each node level.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple sensor nodes are combined into a networked system that shares detection data and coordinates responses. By merging the capabilities of individual sensors into a unified detection system, the overall reliability improves while the complexity is distributed across multiple simple nodes rather than concentrated in one complex device.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If multiple sensor nodes are deployed for improved detection accuracy, then the reliability of object detection is enhanced, but the device complexity increases

Engineering Contradiction:
Improveaccuracy of object detectionVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Each sensor node is designed as a universal, multi-functional unit that can detect various objects, process data locally, and communicate with other nodes. This universality allows multiple nodes to be deployed for improved accuracy while keeping individual node complexity low, as each node performs the same set of functions rather than requiring specialized complex designs.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Productivity

If real-time image transmission is implemented, then the productivity of monitoring is improved, but the use of energy increases due to wireless communication

Engineering Contradiction:
Improveproductivity of monitoringVSAvoiduse of energy by sensor node
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

Instead of continuous real-time transmission, the sensor nodes transmit images periodically or event-driven (when object detection occurs). This periodic action maintains monitoring productivity by ensuring timely image transmission while significantly reducing energy consumption compared to continuous transmission modes.

Inventive Principle:
Principle #19Periodic action

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

Enhances the accuracy and reliability of object detection and imaging by reducing false actuations and providing a wireless transmission of images to a remote display, enabling effective monitoring and surveillance.

Implementation Method 1

The laser sensor is a known device for transmitting a pulsed laser beam and detecting a reflection of the pulsed laser beam for determining a range to an object interrupting the beam

Methodology Applied
Scientific EffectTime of Flight: Time of Flight

Implementation Method 2

A sensor in the active remote sensing device detects a reflection of the pulsed beam for the object interrupting the beam

Methodology Applied
Scientific EffectReflection: Reflection

Implementation Method 3

Many passive remote sensing devices sensitive to acoustical emission or infrared electromagnetic transmission have been used in intrusion alarms, perimeter surveillance and the like

Methodology Applied
Scientific EffectInfrared Radiation: Infrared Radiation

Implementation Method 4

A second camera is connected to the sensor microcomputer for recording a second image of the object for determining the velocity of the object from the images from the cameras

Methodology Applied
Scientific EffectMotion detection:

Implementation Method 5

The sensor may include a heat sensor for sensing a heat emission from the object

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Data Source

PatentUS9247215B1Laser sensor system
Publication Date: 2016.01.26 CUSTOM MFG & ENG
  • US9247215B1 patent drawing
  • US9247215B1 patent drawing
  • US9247215B1 patent drawing

AI summary

A device is disclosed for detecting and imaging an object comprising a sensor node including a sensor for sensing the object and a camera for recording an image of the object. A wireless sensor radio is connected to the camera for transmitting the recorded image of the object to a display node for displaying the image of the object at a remote location.