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Wireless sensor network perimeter to prevent the System


Installing a transformer, voltage divider, reactors, capacitors, power distribution panel, control panel, wire and cable and other equipment belonging to Class E fire place. Same rules of order, to leave the laboratory testing personnel should be cut off before the power supply, high voltage test hall that can only work in some circumstances (with high voltage) test or (with low voltage) to prepare. High voltage test hall of the building height is generally 20-35m, because height is too high, the average smoke detector does not work, while the use of camera surveillance to monitor electrical instruments plus the cost of its high sensitivity is much larger than the very early smoke alarm system. Because of the high test pilot area is no state test transmission on the test piece through the camera's monitor is necessary, testing personnel in the event of unexpected situations can be the first time trial in the control room cut off the power. Due to test station is fixed, the camera can be a fixed focal length; a certain height for hanging test area can be set in the same plane up and down the two camera positions. Hall can not be set high pressure water spray test, should be selected for the fight against electrical fire extinguisher dry powder fire extinguisher or CO. High-voltage capacitors room, power distribution room, control room should be set fire alarm detectors, fire exits,abercrombie fitch paris, evacuation should be set up lighting. 2.6 security lighting power distribution room, control room should be set such as emergency lighting power supply. High voltage test hall in addition to general lighting, the need to set up security lighting. High voltage test hall altitude platform should have sufficient lighting, lighting installation should take into account the convenience and safety for lamps, lighting should be an appropriate proportion of the lamp with a nickel-cadmium batteries, in order to avoid a sudden power outage caused by insecurity. Access to high-altitude platform railing of bridleways should be set not more than 36V low-voltage lighting; high voltage test hall as the main lighting for the gas discharge lamp, not immediately after power failure light, so the pressure around the Chamber test altitude of about 2.5m fluorescent lighting as a safe setting; a certain height for hanging test area should be considered observational test pieces hanging space lighting, the illumination can be 50% of the ground illumination design. Conclusion 3 is a relatively high voltage test hall special industrial buildings, high-pressure test in order to protect Zai Jinxing personal, equipment and test safety, the need to develop safe operating procedures, safety rules and regulations, etc., they need high voltage test hall of the electrical design have the following in ensuring safe conditions: ① reliable ground; ② prevent induced voltage and the discharge counter-measures; ③ ensure safe separation distance and insulation; ④ reliable supply chain and access control systems; ⑤ sound of the fire exits and fire facilities; ⑥ considerate of the security lighting. [References] 1] DL560 a l995 electrical safety procedures (high-pressure test chamber part) [S]. Received Date: 2007.12.14 (on the next page 32) [2] Ge Yan. Outdoor Perimeter Protection System Review [J]. China Security Products, 2004 (5): 49.54. [3] AKYILDIZLF, SUWL, SANKARASUBRAMANIAMY, eta1. ASurveyOilSensorNetworks [J]. IEEECommunicationsMagazine,christian louboutin france, 2002,40 (8): 102.114. [4] Li-Min Sun, Jianzhong Li, Yu Chen, et al. Wireless sensor networks [M]. Beijing: Tsinghua University Press, 2006. [5] slip Nan,abercrombie paris, SHI Hao-shan, Wu Jian, et al. Wireless sensor network routing algorithm clustering asked [J]. Computer Engineering and Applications, 2005,41 (30): 125.129. [6] Yang Ning, Tian Hui, Zhang Ping, et al. Wireless sensor network topology research. . . - 44. . . - Study [J]. Radio Engineering, 2006,36 (2): 11.13. [7] Fang Hongyu Cui Xun study, Liu Qi. The positioning of wireless sensor networks overview [J]. Computer and Information Technology, 2005,13 (6) :1-6. [8] Zhu Lin, Xiao Yuan,abercrombie paris ouverture, Ge Lijia, and so on. Summary of UWB wireless sensor networks [J]. Control Technology, 2004,23 (12) :1-4. [9] Lin Kai, Zhao, Yin Zhenyu, et al. Sensor data fusion layer of the network research and design [J]. Information Technology, 2006,30 (3) :7-10. [10] ANCHAS, UNDERCOFFERJ, JOSHIA. eta1. SecureSensorNetworksforPerimeterProtection ComputerNetworks, 2003,43 (4) :421-435. Received date :2007 -07-19
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