Generally cameras are used for area based surveillance, but with advancement in technology, cameras can be employed for wide area space surveillance (volumetric space surveillance). The volumetric systems require a number of cameras in order to cover a large area. Single panoramic cameras do not provide required functionality for wide area space surveillance and Pan-Tile-Zoom (PTZ) cameras do not either cover wide areas. To meet this challenge, we propose a cost effective smart volumetric surveillance system which utilizes smaller number of cameras in order to provide a coverage of 360 degree. A test case used for this system includes detection of birds in the wind farms. The proposed approach provides a solution for recording/preventing collision of birds with wind turbine. To realize the system, a model is developed with two camera nodes. This model provides a 360 degree conical volumetric space coverage. The system is utilizing a servo motor with capability of changing speed and arduino embedded platform for controlling different functionality. After triggering the camera nodes from arduino, software perform the image analysis. This cost effective and wide area surveillance system consumes at least half lower power as compared to traditional linear systems with eight cameras. It is worth noting that the system provides conical shaped area coverage of 200 square meters with height ranging from approximately 40 to 100 meters. The system would capture images in raw format in local storage and the test results show that saving images with PNG format requires a small memory size as compared to BMP and TIFF. Experiment results indicate that surveillance system can be effectively employed for detecting birds in opening places.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:miun-22215 |
| Date | January 2014 |
| Creators | zhang, zhennan |
| Publisher | Mittuniversitetet, Avdelningen för elektronikkonstruktion |
| Source Sets | DiVA Archive at Upsalla University |
| Language | English |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
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