GPS positioning system of public security police police department, criminal cars, fire engines, anti-smuggling vessels and the postal department of postal vehicles, etc., for a long time the urgent need for an inexpensive, ready to instantly determine the target location, and enhance security during the mission objectives monitoring tools, in order to implement effective management, disposal and rescue. On the other hand almost all of the security alarm system can only provide services for a fixed target, and is a moving target, such as Yakuan vehicles, police cars and other ongoing robbery when installing gps, it becomes powerless. Therefore able to establish a set of moving targets in real-time monitoring and dispatching, unified management system is particularly necessary. 3G technology (GPS, GPRS, GIS) makes the establishment of such a system becomes a possibility. Geography and public security applications combining GPS, display equipped with GPS devices can track vehicles and people, analyzing the best path. Early warning, alarm, alarm processing integration, deter illegal activities can achieve the purpose of robbery and vehicles, but also provide technical support for the mobility of rapid response police officers. Police officers through a mobile terminal, a variety of query, analysis, management, operation, especially for public security business agility and strong features. Role: To improve the level of police services; improve case detection rate; improve the fight against crime, improve handling emergencies rapid response capability. GPS positioning the car rental industry with the continuous development of society, personal living standards rising, the demand for vehicles are also constantly upgrading, the increasing number of urban rental vehicles, expanding auto install gps how much, intensified market competition . In this case, Zhengzhou install gps Which is good, a lot of rental vehicles operating company wants to use technological means to enhance competitive advantage. Car rental industry in the development of society continue to improve the growth, while a variety of malicious acts are constantly lied to car damage the interests of the car rental companies, car cheat behavior often occurs in the rental market, and afterwards it is often difficult to cheated vehicles recovered, even if the leasing company or find a suspect vehicle found cheated, because the authorities can not be considered evidence of these events can only be classified as a liar car economic disputes, which gives the leasing company caused huge economic losses. Cheat car phenomenon exists, many leasing companies dilemma, the situation is worrying. Therefore, how to improve their own vehicle rental management level, improve the rental rate, risk prevention, etc., has become the focus of leasing companies work. To safeguard the interests of leasing companies, to avoid the loss of car cheat behavior brought to lease units, installation of car GPS systems installed car gps helpful, is justifiable choice. Through this system, the leasing company can keep track of the specific location of their rental vehicles, travel, miles, easy to vehicle management, to ensure that the property business. Install gps satellite locator _ Ru'nan install electronic gps_ Double Double provided by Electronic Technology Co., Ltd., Zhengzhou. Double Electronic Technology Co., Ltd., Zhengzhou (www.zzgprs.com) strong, credible, in Zhengzhou, Henan Province of GPS systems and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Double electronic and you hand into the brilliant, for a better future!