with the continuous development of highway construction

英文In recent years, with the continuous development of highway construction, greatly promote local economy development. However, expressway along the cable theft is rampant, give way facilities maintenance difficulties, serious impact on the highway management and road safety exercise.At the same time as the present power system unattended power station extension, which distributed in various regions of the transformer, transformer, cable lighting cable becomes more difficult to manage, few consultants, so that the power cable to be theft and destruction of the main goal, therefore in these places to use modern intelligent anti-theft alarm system demand is becoming more and more urgent.The intelligent cable anti theft system is a modern management with security requirements, distributed, open type, network type, scalable technology application system. The system also has an alarm interface, and other security system linkage, effectively improving the security system of the security level, and has a different light and disconnection, circadian distribution state detection function.The system goal is for expressway management department to establish a safe and reliable alarm, accurate, low false alarm rate, not influenced by the natural environment (such as wild animal, bad weather ) and perimeter camber effects of intelligent cable anti theft system. Professional grade distributed intelligent cable anti-theft system, suitable for unattended environment monitoring.Intelligent cable anti-theft alarm system is a kind of illegal cable theft deterrent for most solutions, applicable to large-scale, complicated terrain area, make it become a fully closed anti-theft area.This system solution has the following outstanding performance:Adaptive technology: the system to automatically adapt to environmental conditions and site condition change, according to the regional condition changes, such as in the big fog, wind, system can maintain the highest alarm limit.All-day uninterrupted working mode: either in the daytime or at night, in a power or no power state can be normal, abnormal timely alarm.Excellent ductility and compatibility: the system has multiple communication interface, and various types of professional alarm mainframe on-line application, and with various monitoring systems ( such as the three remote systems,110systems) to realize linkage, make your existing system management function has been greatly upgrade and expansion of.Anti theft alarm system in the security industry technology innovation is relatively backward ( relative monitoring system, access control system, intercom systems, electronic Patrol System ( the main products patrol rods ). ). But in recent years, anti-theft alarm system technology in the slowly change, gradually to the processor with high performance, large size liquid crystal display keyboard, and connected with the computer direction (based on TCP / IP transmission technology ).Especially in the alarm zone setting, online programming, wireless alarm, anti-theft alarm system have been greatly improved, basically is the mixed alarm control and through the computer programming and control setting means, the past by alarm keyboard on-line programming and control input basic phenomenon no longer appear. The anti-theft alarm system is the key to the innovation of various detectors, and detector technology to update the relative difficulty of alarm host to larger, there needs to be combined with multidisciplinary technology innovation. Such as optical, microwave, various sensors to improve special sensor, such as research and development.In the market, construction market is caused by the anti-theft alarm system is the main reason of lag of industry development. Intelligent building in the high speed development of10 years, anti-theft alarm system was first introduced to the residential construction. But with the visual intercom system technical revolution, anti-theft alarm system is gradually extruded housing market, which also led to the industry in the residential market share gradually reduced, the impact of industry technology progress.In 10 years of in the past, anti-theft alarm industry development is relatively slow, full digital technology has not yet spread ( host and detectors ). Therefore, the author thinks, future anti-theft alarm industry will move towards full digital detector, digital network platform, much angle control technique (i.e., multiple joint alarm technology alarm protection system, high performance, low rate of false alarm detector R & D ) development, and access control system, intercom systems, monitoring and control system integration, and is ultimately and computer integration for an integrated security system, will all the security subsystems are integrated into the computer management platform of integrated alarm system.The power cable is divided into high and low voltage power grid. In general, high voltage for high voltage, high height, dangerous, so the theft unlikely. While the 380V three-phase low-voltage network or 220V single-phase power line, due to low voltage, wire ( generally higher value for copper wire ), and a number of outlaws of the theft target. Therefore the power line anti-theft is the main problem of low voltage power distribution cable antitheft problem.The conventional voltage security methods generally have the following kinds: 1, professional duty personnel duty patrolThis method is applicable to the walled places locations, such as schools, factories, warehouses, office compound. Cable anti-theft and fire, security combination.In 2, underground installationThe power supply cable sleeve used for the protection of hard plastic tube or wear in concrete pipe embedded in the application to underground, due to underground cable has good concealment and protection, can play a security role. But buried underground cables in large quantities, high cost, inconvenient maintenance, therefore only used for grid density, the transmission distance of the urban area. In recent years, this method can very good security.3, using electronic instruments for testing protectionThe cable is installed on the monitoring alarm instrument, when the cable is cut, sending alarm signal notification related personnel to timely capture the criminals, the deterrent effect of cable protection.Based on the former two methods limitations, the current cable anti-theft studies generally use third methods. However, electronic instrument because of different design principles are divided into many kinds. The current cable theft seriously, the market has appeared in a number of electronic instruments ( such as the current and voltage detecting method, capacitance detecting method, power line carrier communication method and principle to design anti-theft device ), but not a widely used. The reason mainly lies in the following characteristics of cable:1, lighting lighting at night, during the day after the electricity after power off, all-weather demand to realize anti-theft alarm;In 2, street lamp cable each source are connected in parallel with dozens of micro method for compensation capacitor, the traditional power line carrier signal intensity with distance from the exponentially decreased, leading to the power line carriercommunication is not reliable;In 3, high pressure sodium lamp life end will occur before" white out" phenomenon ( always Mandrax mandrax-out, spaced a few minutes ), cables leading to the current uncertainty;In 4, street lamp cable buried in the ground, long-term work by rain, damp effects lead to leakage;360毕业设计网友情提供 5, lighting equipment failures often leads to local lights, current changes, according to the current resolution is to steal or close by.In order to solve the cause to the problem, this paper proposed a novel alarm system. It is the traditional security technology, wireless alarm technology of power electronics technology, computer data processing technology and cable detection technologies, not only has the alarm function, but also has the line state detection function, low false alarm rate, and increase the remote alarm function.In recent years, many regions in China have different degrees of the transmission facilities stolen cases. The power transmission system,380V,10kV power facilities stolen relatively serious. Because of rural power grid is located in remote, difficult to patrol guard theft, to create opportunity. I company in 2005, launched a series of HSPLM-060210kV High voltage power line remote anti-theft alarm system. This system realized with 10kV power line isolation detection, at the same time in the power line without power state detection alarm. Through nearly two years of practice and research, my company especially for perennial uninterruptible power line facilities, in the HSPLM-0602series 10kV High voltage power line remote anti-theft system research and development based on the HSPLM-0702second generation of power facilities anti-theft alarm system. At present, this system has passed ISO international quality system certification, and in the quality and Technical Supervision Bureau. The system structure of HSPLM-0702power facilities: anti-theft alarm system mainly includes a monitoring terminal, type two diabetes monitoring terminal, the portable alarm terminal, monitoring center is composed of four parts. The user can according to the actual need to match the selection. A monitoring terminal: the terminal can monitor 380v-35kv power line, the cable is damaged, missing, illegal Climbing poles, using violent means to destroy the alarm and power facilities are available to type two diabetes monitoring terminal sends an alarm signal, finally realizes the grid branch and substation facility anti-theft monitoring. The two type monitoring terminal: the terminal has a monitoring terminal all alarm detection function, also has a private box etc. human body induction detection function, in addition to the terminal will be accepted from a monitoring terminal alarm signal, analysis of specific alarm circuit, the alarm signal is sent to the portable alarm terminal and monitoring center. The portable alarm terminal: the terminal for portable equipment, can have staff on duty to carry or vehicle-mounted terminal can receive from two. Type of alarm terminal alarm data, to the way the list is displayed on the LCD screen, also can be to the electronic map display, convenient and intuitive to identify damaged power lines and power facilities. In addition the terminal equipped with GPS positioning system, the personnel on duty can in the shortest possible time to determine the alarm location, real-time mark staff on duty location, and guide them to the fastest speed to the scene. The portable alarm terminal using the Samsung ARM chip as the hardware core, stable performance Reliable, can work for a long time in bad environment, in addition to use SONY touch screen, operation is convenient. The monitoring center: this center is provided with a dedicated server, can be directly received from the two terminal monitoring alarm signals, and direct dial 110call center or preset by the other telephone, and the use of radio, car radio transmittingvoice alarm information. The server will alarm the letter path analysis processing and displayed on the LED screen, convenient and unified coordination and containment of thieves. The server also can be connected via a network to other computer realization statements, statistics, print and other functions. To maximize the user convenient centralized management also can increase. The GPS positioning system, real-time query staff on-the-job situations. The main features of the system: monitoring terminal features: the non-contact sensing alarm the system uses solar battery power supply as well as my company independent development of electromagnetic induction heating technology, can be in without connecting power lines or transformers in the case of detection of damaged power lines, real time judge the cable phase alarm, and power lines or transformers complete isolation." Without power construction is convenient because the system by electromagnetic Induction technology for power line and transformer set detection, high sensitivity, construction could be the detection terminal installed in the safety zone, namely the wire rod in the lower part. Do not need to power off operation. The detection terminal for one machine, no other accessories, installation need only use the pole will be fixed to a variety of alarm function. The flexibility to choose the electromagnetic induction module: can 380v-35kv power line detection, judgment cable on-off state, phase lacking. Doppler infrared module: can detect whether someone climbing a wire pole, transformer or private box vibration detection module: can detect whether someone using the destructive means to detection of terminal or power transmission facilities were destroyed. The solar battery power supply: the system uses solar battery as power system, capable of all-weather working for a long time; internal use lithium battery as a backup power supply, can satisfy the weather work continuously for more than 15 days. At the same time to prevent the malicious damage to solar cells, the detection terminal is also provided with solar energy battery detection module, can detect the solar cell is broken or foreign body shielding. Flexible stable real-time communication system The use of Japan's imports of digital radio to send the alarm message, alarm for the type of digital and voice, in which the digital alarm signal for a portable alarm terminal and the monitoring center receives the use, voice alarm signals can be sent directly to the preset radio or car radio, with voice directly report to the staff on duty. The portable alarm terminal main function: * list display and alarm data: when the power grid in a section of the line or power facilities have invaded or destroyed, two type monitoring terminal will put the alarm information and the address number is sent to the portable alarm terminal, the portable alarm terminal receives the alarm information in list form to reflect the staff on duty at the same time, voice prompts, the personnel on duty can pass on the list operation check previous alarm record, and print output. The real-time map and GPS display alarm data: a portable alarm terminal receives the alarm information, in addition to the list display, you can also use the GIS map displays. In this interface, the personnel on duty can query all the monitoring area network, in case of alarm, alarm line on the map to red, the personnel on duty and flashing. Can in the shortest possible time clear alarm line position, as well as the police line. On the screen with a red arrow indicates the location of the personnel on duty, and along with the attendant's mobile, updated in real time. In addition users can optional" real-time positioning module", in the monitoring center can be updated in real time on duty and patrol vehicle position the convenience of unified command and coordination, containment, thief. The monitoring center main functions: monitoring center to provide users with system, mainly for large area uniform management scheduling, in the event of an alarm when the personnel on duty patrol vehicles, coordination and containment. Can also use themonitoring center staff on duty on inquiry, convenient supervision monitoring center setting. Dedicated server, can be connected via a network to another computer, is convenient for operators on duty to see. The server can also connect LED or large screen projector over district power grid monitoring and testing center can be directly connected to the public security departments, such as the110 alarm center or other public management department. In addition can also be configured to radio or car radio, to coordinate the relevant units personnel, thereby forming a careful monitoring network. Management software demonstration: for the convenience of the duty Supervision of management as well as the alarm processing of the statistics and backup, monitoring center can install management software. This software is written using Delphi, has good compatibility, can be installed to run in Win98, Windows over XP system platform computer, software support card reader, network access, can realize the on duty staff attendance function.。