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Developing Sun Shields for Surveillance Cameras

Alsved, Leo LU and Rasmusson, Kristofer (2013) MMK920 20122
Product Development
Abstract
This project aims to investigate and develop sun shields for Axis surveillance cameras. Surveillance cameras that are placed outdoors in warm environments obtain extra heat during the day due to solar insolation. In particular, the image sensor can be very heat sensitive and with increasing temperature the picture becomes coarse and gets lower quality. For Axis cameras to be used in hot environments, they are provided with a sun shield to reflect solar irradiation. Axis wants to improve the picture quality of their cameras by developing more effective sun screen that protects from heat.
Physical tests with artificial sunlamp combined with computer simulations in Ansys Fluent examine the parameters that influence the properties of the sun... (More)
This project aims to investigate and develop sun shields for Axis surveillance cameras. Surveillance cameras that are placed outdoors in warm environments obtain extra heat during the day due to solar insolation. In particular, the image sensor can be very heat sensitive and with increasing temperature the picture becomes coarse and gets lower quality. For Axis cameras to be used in hot environments, they are provided with a sun shield to reflect solar irradiation. Axis wants to improve the picture quality of their cameras by developing more effective sun screen that protects from heat.
Physical tests with artificial sunlamp combined with computer simulations in Ansys Fluent examine the parameters that influence the properties of the sun shield. Three different camera series, P12, P13 and Q60, are examined to document different typical cases.
After a first phase of tests, hypotheses are formulated and new concepts for sun shields are developed. After further testing and evaluation the best sun shield is selected for further development. This is optimized by computer simulations for best perfor- mance and then customized to fit Axis design requirements and existing camera models.
The project culminates in a prototype designed for P13 series which lowers the tem- perature of the camera with 5 ◦C. A guide to how the new sun shields should be designed are presented on the basis of the three different typical cases tested. (Less)
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author
Alsved, Leo LU and Rasmusson, Kristofer
supervisor
organization
course
MMK920 20122
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Axis Communications, Network Surveillance Camera, Sun Shield, Thermal Radia- tion, Temperature
language
English
id
3439252
date added to LUP
2013-02-04 09:30:59
date last changed
2013-02-04 09:30:59
@misc{3439252,
  abstract     = {This project aims to investigate and develop sun shields for Axis surveillance cameras. Surveillance cameras that are placed outdoors in warm environments obtain extra heat during the day due to solar insolation. In particular, the image sensor can be very heat sensitive and with increasing temperature the picture becomes coarse and gets lower quality. For Axis cameras to be used in hot environments, they are provided with a sun shield to reflect solar irradiation. Axis wants to improve the picture quality of their cameras by developing more effective sun screen that protects from heat.
Physical tests with artificial sunlamp combined with computer simulations in Ansys Fluent examine the parameters that influence the properties of the sun shield. Three different camera series, P12, P13 and Q60, are examined to document different typical cases.
After a first phase of tests, hypotheses are formulated and new concepts for sun shields are developed. After further testing and evaluation the best sun shield is selected for further development. This is optimized by computer simulations for best perfor- mance and then customized to fit Axis design requirements and existing camera models.
The project culminates in a prototype designed for P13 series which lowers the tem- perature of the camera with 5 ◦C. A guide to how the new sun shields should be designed are presented on the basis of the three different typical cases tested.},
  author       = {Alsved, Leo and Rasmusson, Kristofer},
  keyword      = {Axis Communications,Network Surveillance Camera,Sun Shield,Thermal Radia- tion,Temperature},
  language     = {eng},
  note         = {Student Paper},
  title        = {Developing Sun Shields for Surveillance Cameras},
  year         = {2013},
}