Design of A Thermopile Infrared Sensor Module with Extended Human-Body Detection Distance

2018 ◽  
Vol 55 (2) ◽  
pp. 81-88
Author(s):  
Keonil Kang ◽  
Sang-Won Nam
Keyword(s):  
Human Body ◽  
Infrared Sensor ◽  
Detection Distance ◽  
Sensor Module

A Real-Time Photogrammetric System for Acquisition and Monitoring of Three-Dimensional Human Body Kinematics

2021 ◽  
Vol 87 (5) ◽  
pp. 363-373
Author(s):  
Long Chen ◽  
Bo Wu ◽  
Yao Zhao ◽  
Yuan Li
Keyword(s):  
Real Time ◽  
Human Body ◽  
Graphics Processing Unit ◽  
Three Dimensional ◽  
Stereo Pair ◽  
Processing Unit ◽  
Detection Distance ◽  
Human Kinematics ◽  
Graphics Processing ◽  
Time Acquisition

Real-time acquisition and analysis of three-dimensional (3D) human body kinematics are essential in many applications. In this paper, we present a real-time photogrammetric system consisting of a stereo pair of red-green-blue (RGB) cameras. The system incorporates a multi-threaded and graphics processing unit (GPU)-accelerated solution for real-time extraction of 3D human kinematics. A deep learning approach is adopted to automatically extract two-dimensional (2D) human body features, which are then converted to 3D features based on photogrammetric processing, including dense image matching and triangulation. The multi-threading scheme and GPU-acceleration enable real-time acquisition and monitoring of 3D human body kinematics. Experimental analysis verified that the system processing rate reached ∼18 frames per second. The effective detection distance reached 15 m, with a geometric accuracy of better than 1% of the distance within a range of 12 m. The real-time measurement accuracy for human body kinematics ranged from 0.8% to 7.5%. The results suggest that the proposed system is capable of real-time acquisition and monitoring of 3D human kinematics with favorable performance, showing great potential for various applications.

scholarly journals IOT Based Smart Robot

2021 ◽  
Vol 9 (VI) ◽  
pp. 4438-4441
Author(s):  
Harsh Srivastava
Keyword(s):  
Software Design ◽  
Human Body ◽  
Hardware Implementation ◽  
Ground Vibration ◽  
Cost Effective ◽  
Wireless Access ◽  
Sensor Data ◽  
Infrared Sensor ◽  
Accelerometer Sensor ◽  
Thermal Detection

This paper presents a software design and a hardware implementation of a smart robot based on IOT application. This smart robot has several features; wireless access, surveillance during alarming situation and human body thermal detection for retrieval from dangerous zones. Besides this, the robot can detect seismic movement by monitoring ground vibration. The robot transmits Passive Infrared sensor and accelerometer sensor data to the users via internet. The robots movement is controlled via internet using am IOT based application. This robot is easy to handle, has wide area of applications and is cost effective.

Infrared sensor module using uncooled 320 × 240/640 × 480 detector

2007 ◽  
Author(s):  
Kazuyuki Egashira ◽  
Takashi Yamamoto ◽  
Katsuya Kawano ◽  
Yutaka Tanaka ◽  
Kiyoshi Iida ◽  
...  
Keyword(s):  
Infrared Sensor ◽  
Sensor Module

scholarly journals Design of Intelligent Parking Control System

2021 ◽  
Vol 2113 (1) ◽  
pp. 012019
Author(s):  
Chunhong He ◽  
Hongchao Li ◽  
Bin Ren
Keyword(s):  
Intelligent Systems ◽  
Industrial Revolution ◽  
Wireless Transmission ◽  
Infrared Sensor ◽  
Historical Process ◽  
Space Management ◽  
Sensor Module ◽  
Parking Lot ◽  
Intelligent Product ◽  
Wireless Module

Abstract Along with the historical process of the industrial revolution, the automobile has undoubtedly made life more convenient. But at the same time, various problems also come along: Traffic jams are becoming more and more serious, and problems such as parking are becoming urgent problems. This design uses STC89C52 microcontroller, through the infrared sensor module to detect the information of the garage, then the nRF24L01 wireless module is used to carry out the wireless transmission of master and slave information. Finally, the LCD1602 LCD screen is used to establish the human-computer interaction page, and an intelligent parking space management system is designed. The owners can easily check the parking lot to understand the flow of the parking lot through the system, and judge whether to enter the parking lot, saving time. At the same time, it is easier to integrate with other intelligent systems, which provides a foundation for more advanced management and is the premise for making the parking lot a highly intelligent product in the future.

Design of a Anti-Theft Alarm Monitoring Circuit Based on Mobile Phone

2012 ◽  
Vol 482-484 ◽  
pp. 1261-1264
Author(s):  
Guang Li Long
Keyword(s):  
Time Delay ◽  
Mobile Phone ◽  
Human Body ◽  
Circuit Board ◽  
Lead Wire ◽  
Infrared Sensor ◽  
Time Delay Control ◽  
Delay Control ◽  
Voltage Signal ◽  
Comparison Time

For to steals, robs, and so on accidents to carry on the effective monitor and the warning, a burglar alarm monitoring circuit is designed by using mobile phone, which utilizes a pyroelectric infrared sensor to detect the human body moving signal, when someone moves in a monitoring region, pyroelectric infrared sensor can detect the human body moving signal, and converts it to the voltage signal, the signal is amplified, comparison, time delay, control the relay connect or disconnect the mobile phone to the owners alarm. The components are welded on the circuit board, and connected to internal lead wire of mobile phone key, electrifying testing, it can realized anti-theft alarm and monitoring function.

Development of Automated Disinfection Chamber for Curtailing Spread of COVID-19

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
A.A Raji
Keyword(s):  
Human Body ◽  
Power Supply ◽  
Performance Test ◽  
Virus Disease ◽  
Face Mask ◽  
Protective Equipment ◽  
Infrared Sensor ◽  
The World ◽  
Precautionary Measures ◽  
Disinfection Chamber

Corona virus disease (COVID-19) has claimed more lives in recent times than any other known disease. It is a pandemic that the World is battling. Observation of precautionary measures remains one of the strongest means of curtailing the spread of the disease. These measures include social distancing, use of face mask and personal protective equipment, as well as proper sanitization with recommended disinfectant or sanitiser. This work, therefore, delves into the development of a disinfection chamber for spraying sanitiser liquid to the human body and large surfaces as well as parts infected with the virus via pump-nozzle. The chamber is 7ft tall and is made of wood and aluminium. The electronic part of the disinfection chamber comprises an infrared sensor for detecting the presence of humans in the chamber, PIC16F72 microcontroller which sends a signal to DC pump via the output relay for releasing the sanitiser for five seconds, and power supply unit which provides the required D.C supply to power the circuit. The performance test shows the disinfection chamber is functional and releases the sanitizing liquid for five seconds after which it cuts off to await the entrance of another person. The device is recommended for use in hospitals, campuses, offices, and so on.

Design and Realization of a Wearable Hip-Airbag System for Fall Protection

2013 ◽  
Vol 461 ◽  
pp. 667-674 ◽  
Author(s):  
Qi Zhang ◽  
Hui Qi Li ◽  
Yun Kun Ning ◽  
Ding Liang ◽  
Guo Ru Zhao
Keyword(s):  
Human Body ◽  
Inertial Sensor ◽  
Optimization Methods ◽  
Detection Algorithm ◽  
Human Motion ◽  
The Body ◽  
Needle Valve ◽  
Sensor Module ◽  
Fall Protection ◽  
The Impact

Nowadays falls are a serious problem for elderly people with the coming of aged society in the world. According to statistics,hip fracture accounts for the most of the deaths and costs of all the fall-induced injury. This paper presented an airbag system of hip protection, which included air source, sensors, microcontroller, gas circuit and airbags. A six-axial inertial sensor module that integrated an embedded three-axis MEMS accelerometer and three-axis MEMS gyroscope was used to collect human motion data, and a one-axis obliquity sensor was used to collect human angle data. The microcontroller was employed to recognize the activities of daily living (ADL) and falls based on fall detection algorithm and the collected data from sensors. The gas circuit was triggered once the event that the fall would be inevitable was confirmed by the microcontroller, then the compressed gas would fill into airbags through the gas circuit rapidly. Therefore, a buffer would appear between the human body and the ground before the body impacting the ground, which would reduce the impact of the human body. Compressed CO2 was selected as the air source after we tested several kinds of gas. A 16g CO2 pressurized cylinder could provide enough pressure and volume to inflate quickly the airbags. In order to improve the reliability of the gas circuit, a needle valve was optimized from the several designed structures by the experimental optimization methods. Finally, the airbag system was tested in various designed trials. The results indicated that the system gained the satisfaction for the design requirements and would be potential to apply to the protection of hip joint in the fall high-risk people in the future.

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