1, all metal entity will be on the GPS signal shielding, please note that the car containing the metal coating film will have a shielding effect on the GPS. Heavy volume of non-metallic objects can also have an impact on Star Search, a few centimeters thick wood will be completely shielded GPS signals. Even the next bus will affect the GPS signal 2, glass and plastic for the GPS signal will produce mild attenuation, so the GPS on the car windshield or the following travel tourism in pockets in search positioning will not produce much impact. 3, in the city, viaduct, outdoor billboards and other visual angle of 45 ° above the building; outdoors, towering canopy, continuous mountain, will have an impact on the GPS satellite signals. In actual, the impact of the water seems to be the most obvious and most immediate, and the impact viaduct and car glass film is much smaller than imagined so serious. And there on the one hand is from the artificially reduce the accuracy of GPS locator wholesale Zhengzhou, because the GPS system is the property of the US military GPS locator manufacturer Zhengzhou, when necessary, to reduce civilian signal accuracy will be free, or completely shield, so that in the vast majority of daily use in our environment are affected most from the weather. With the introduction of the rapid development of the construction industry and commercial concrete policies for concrete production industry something to unprecedented opportunities GPS locator, while the competition between the concrete production industry has become increasingly intense, urgent need for concrete producers application of advanced scientific modern management tools to ensure product quality, reduce production costs, and establish a good corporate image, in order to achieve better results in the market competition. Concrete Car GPS monitoring system by PTT + GPS vehicle equipment mixer on a vehicle where a group of high-quality voice intercom and accurate positioning, transmitting real-time information, the dispatcher can dispatch center in the production of vehicles and direct voice call colleagues in Construction work on the line or electronic maps scheduling interface, a clear understanding of the status of each vehicle, the implementation of each task orders, ease control production, deployment of vehicles, the traditional tight, blind to ease labor scheduling, scientific intelligence height. When technology design concrete car GPS monitoring system we follow the following principles: ● Real-time monitoring: 24 hours GPS tracking. ● discharge alarm: discharge detection devices installed GPS locator interface Zhengzhou, discharge information displayed directly on the platform. ● Security Management: speeding, fatigue driving automatic alarm, you can report query. ● whole record: traffic data playback and recording 12-month period. ● dispatching: support Chinese display, voice broadcast, mobile phone multiple scheduling approach. ● regional police: Vehicle traffic beyond the prescribed range immediately to the police. ● Line Examiner: track playback can be checked through tolls, gas bills. ● Remote off oil: lock your car when necessary directives issued under center, the vehicle can not be used when parking. ● Remote Recovery: After the driver properly apply immediately unlocked car. ● High reliability: easy to damage. ● Easy maintenance: can remotely reboot allow easy maintenance. ● Compact: easy to install hidden. ● Simple: You can easily search the vehicle ,, offline vehicle separation, alarm reporting. Zhengzhou wholesale GPS locator, GPS locator, Zhengzhou, Zhengzhou Double Double electronics provided by Electronic Technology Co., Ltd. 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!