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Development of Camera with PIR-Sensors

Asu, Alexander LU and Andersson, Daniel LU (2015) MMK920 20141
Product Development
Abstract
This Master Thesis report describes the development of a new surveillance camera design containing PIR-sensors (Pyroelectric Infrared).
The background to this project lies in the idea that PIR-sensors and video-motion detection technology can complement each other and thereby reduce false alarms.
Research on PIR-sensors and optics were carried out to gain and understanding of the limitations and possibilities of the technology.
In the concept-generation phase basic exterior and internal structure concepts were generated and then evaluated together with possible optical solutions for the PIR-sensors. The chosen concept was further developed and refined both in regards of the exterior aesthetics and mechanical design.
The result is a... (More)
This Master Thesis report describes the development of a new surveillance camera design containing PIR-sensors (Pyroelectric Infrared).
The background to this project lies in the idea that PIR-sensors and video-motion detection technology can complement each other and thereby reduce false alarms.
Research on PIR-sensors and optics were carried out to gain and understanding of the limitations and possibilities of the technology.
In the concept-generation phase basic exterior and internal structure concepts were generated and then evaluated together with possible optical solutions for the PIR-sensors. The chosen concept was further developed and refined both in regards of the exterior aesthetics and mechanical design.
The result is a ceiling mounted camera with a fish-eye lens and four PIR sensors. Together the sensors cover the same field of view as the camera. Each PIR sensor has a plastic window with a Fresnel lens array to accomplish segmentation of the detection zones. Placement of the larger components on the circuit board has been taken into consideration and special attention has been made to the Power-over-Ethernet connector. A new connector is proposed that can be mounted at an angle, dropped halfway through a cut-out in the circuit board. This concept enables a much slimmer product and facilitates easy connection of the cord.
The installation process has also been taken into consideration and a solution using hidden screws was chosen. A bottom mounting plate is screwed onto the ceiling after which the main body of the product is connected to the cord and attached to the mounting plate using a bayonet mount. If desired the product can be secured by a screw hidden under the hood cap, which can be removed using a flat head screw driver.
The product has a height of 32 mm excluding the camera lens and a diameter of 129 mm. This gives a slim look and also enables it to fit the accessories of the current AXIS M30 line of cameras. (Less)
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author
Asu, Alexander LU and Andersson, Daniel LU
supervisor
organization
course
MMK920 20141
year
type
H2 - Master's Degree (Two Years)
subject
keywords
PIR, Surveillance Camera, Product Design, Axis Communications
report number
ISRN 14/5513
language
English
id
4936150
date added to LUP
2015-02-04 11:43:32
date last changed
2015-02-04 11:43:32
@misc{4936150,
  abstract     = {This Master Thesis report describes the development of a new surveillance camera design containing PIR-sensors (Pyroelectric Infrared).
The background to this project lies in the idea that PIR-sensors and video-motion detection technology can complement each other and thereby reduce false alarms.
Research on PIR-sensors and optics were carried out to gain and understanding of the limitations and possibilities of the technology.
In the concept-generation phase basic exterior and internal structure concepts were generated and then evaluated together with possible optical solutions for the PIR-sensors. The chosen concept was further developed and refined both in regards of the exterior aesthetics and mechanical design.
The result is a ceiling mounted camera with a fish-eye lens and four PIR sensors. Together the sensors cover the same field of view as the camera. Each PIR sensor has a plastic window with a Fresnel lens array to accomplish segmentation of the detection zones. Placement of the larger components on the circuit board has been taken into consideration and special attention has been made to the Power-over-Ethernet connector. A new connector is proposed that can be mounted at an angle, dropped halfway through a cut-out in the circuit board. This concept enables a much slimmer product and facilitates easy connection of the cord.
The installation process has also been taken into consideration and a solution using hidden screws was chosen. A bottom mounting plate is screwed onto the ceiling after which the main body of the product is connected to the cord and attached to the mounting plate using a bayonet mount. If desired the product can be secured by a screw hidden under the hood cap, which can be removed using a flat head screw driver.
The product has a height of 32 mm excluding the camera lens and a diameter of 129 mm. This gives a slim look and also enables it to fit the accessories of the current AXIS M30 line of cameras.},
  author       = {Asu, Alexander and Andersson, Daniel},
  keyword      = {PIR,Surveillance Camera,Product Design,Axis Communications},
  language     = {eng},
  note         = {Student Paper},
  title        = {Development of Camera with PIR-Sensors},
  year         = {2015},
}