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1、Automobile burglar alarmThe automobile is the present humanitys main transportation vehicle, is also the modern civilization symbol. The world the automobile sales volume reaches more than 6000 ten thousand every year, the inventory has surpassed 400,000,000. Is using the vehicles are more, but the
2、following traffic accident and the automobile which robbed are been also getting more and more, has created the personnel casualty and the economical property loss. The people set a higher request to motor vehicles operational performance and the security performance. The auto safety becomes an impo
3、rtant social question. In order to reduce motor vehicle accidents formation rate, for has automobiles user to provide the security sense, develops one kind simply reliable, the ease of operation, can automatic detection automobile various part of conditions, discover that the normal condition can se
4、nd out the warning reminder and the security warning safety system to the pilot, has the actual design significance.Automobiles value is high, increases unceasingly along with the automobile quantity, the automobile already became robs the key point which the person steals, the automobile is robbed
5、has become generally pays attention now and the urgently needed solution social questionAt present each automobile security method and the product emerge one after another incessantly, although the vehicle door or the engine were loaded with the security mechanical lock, but robs the person to use t
6、he master keys, but does not need the small effort to open the vehicle door, drives away the vehicle, the automobile security question does not have completely the solution as before. Now in societys automobile security way has the following several kinds:First, the mechanical type security, the mai
7、n principle locks on automobiles some organization, enables it to play its proper role. Existing many kinds of ways for example: The transmission gearbox files the lock, the steering wheel lock, the brake pedal lock, the meeting and parting footboard lock and so on, brings the troubles are the volum
8、e which the machinery locks are big, the vehicle owner must along with a multi-belt key. But explains the method is numerous, because the core is a lock, when this sneaks into a house picks a lock the person. When like the hydraulic pressure cuts and so on crude method; Was not careful has lost agai
9、n the key .Second, electron security, is in the present auto market the most popular security installment. Starts the burglary protection system to be possible the ignition coil or the feed return route cut-off, only uses under releasing keys control can relieve normally guards against theft. This k
10、ind of way varied assortment; Domestic and foreign majority of automobiles when leaving the plant has disposed the key chip burglary protection system. In use keys transmit by radio chip after this vehicles ECU communication can start the motor car engine. Also has the acousto-optics alarm system, o
11、n the automobile gauge board is loaded with the light emitter diode, may also let the vehicle owner know systems active status, may also to spy on compartments car thief to play the warning role. When automobile, because the external force has the vibration, when before or the vehicle door, the rese
12、rve box lid, the engine room coverlet opens forcefully, the system exudes the warning sound, scares robs the vehicle thief. Has the bidirectional alarm system, has been able to inform vehicle owners function compared to the pure flash and sound alarm system many, when the automobile encounters the o
13、utside invasion, can know automobiles condition in the nearby vehicle owner through the body carrying liquid crystal display key.Third, the network type burglary protection system, mainly depends upon social the public network to monitor vehicles travel. 1st, the GPS satellite positioning security d
14、epartment, it through the GPS satellite positioning system, the definite vehicles position, again transmits through the GSM net the position and the alarm message to the warning center. The warning center through the GSM net control automobile, the power failure/breaks the oil. The shortcoming is th
15、e price is high; Needs to pay the service fee frequently; Systems operations power is big; The confidentiality will receive the invasion; The vehicles long-term laying aside does not use can exhaust the level electric quantity. The vehicle stops under underground, the tree, the building approaches,
16、the indoor system not to have an effect. 2nd, GSM, GPRS move security, GSM moves security it to depend on the GSM communication network, carries on the handset and automobiles intelligent linkage security, has security, the monitoring, the remote control, the long-distance warning, the localization, instead to plunder and so on many kinds of functions, is maintains the social order, to protect the vehicle owner benefit the effective measure. Compares with the
