Q:What does GPS mean

GPS principle24 GPS satellites orbiting the earth at an altitude of about 12 thousand kilometers from the ground, making it possible to observe more than 4 satellites at any point on the ground at any time, at any point in the.That due to the precise position of the satellite in the GPS observations, we can get the satellite to the receiver distance, the distance formula of three-dimensional coordinates, using 3 satellites, can be composed of 3 equations, solved observation point (X, Y, Z). Considering the error between the satellite clock and receiver clock, in fact there are 4 unknowns, X, Y, Z and clock, which requires the introduction of fourth satellites, the formation of 4 equations to solve, in order to get the observation points of latitude and longitude and elevation.In fact, the receiver can often be locked more than 4 satellites, then the receiver according to the distribution of the satellite constellation is divided into several groups, each group had 4 teeth, and then through the algorithm selected a set of minimum error for positioning, so as to improve the accuracy of.Due to the orbit of the satellite, the satellite clock error, the impact of the atmospheric troposphere and ionosphere on the signal, as well as the artificial SA protection policy, the positioning accuracy of civil GPS is only 100 meters. In order to improve the positioning accuracy, commonly used differential GPS (DGPS) technology, the establishment of base station (differential Taiwan) were observed in GPS, using the known exact coordinates of the base station, compared with the observed values, so that a number of amendments, and released. After receiving the correction, the receiver compares with the observed values, eliminates most of the errors, and obtains a more accurate position. The experimental results show that the positioning accuracy can be increased to 5 meters by using differential GPS.

Q:Phone can not locate GPS

No Rev GPS determine the GPS module damage to determine the brush bar

Q:How to close millet 3 GPS locator

In the phone's drop-down bar, there is a switch bar, which can be more than a small function button, which has a GPS positioning button, a little off, and then click on the open.Or in the "Settings", the point of "all settings", which has a "location service", "GPS satellite positioning" off the line.Hope can help you.

Q:How to install and use car GPS locator

3). Wiring little trouble spots, to take the line, according to the different functions to set an gt02a car like rice only positioning function, only the positive and negative two lines, pick up convenient; like the gt06n function, then the line is very much, like the ACC line, relay line etc..

Q:My phone does not have a GPS positioning system

With the next mobile phone software system is not necessary so much trouble

Q:How Android phone and GPS locator binding

Online APP software installation method:1, Iphone users: in the apple market (APPStore) "car", you can search online online download APP client online car rice

Q:Just burglary was not a very expensive mountain bike, intends to buy a car with GPS, please recommend a few easy to use micro GSP locator, a treasure on the more complex, a few requirements:As small as possible, the mountain car is not easy to hide.Life as long as possible, 35 days a charge that is not convenient to use.Don't seven hundred or eight hundred ha, cheap point.

For several years without contact, you still choose it, you want to save electricity, then you can not set the background to the general requirements of the boot, and then re boot the boot location.

Q:The simplest and easiest language to say. Do not professional, do not understand......

AGPS is a network aided positioning, is in no use when the GPS satellite signal, GPS must have AGPS, and not necessarily

Q:GPS locator what brand is good RF

A5E GPS locator MINI-W electric car / motorcycle GPS Beidou Positioning Terminal, GPS positioning terminal, ACAR Bluetooth anti tamper blind wireless GPS, KM01 remote power off the oil vehicle GPS positioner, OBD vehicle positioning diagnostic instrument, BCAR composite anti demolition type GPS positioner, OBD vehicle positioning instrument. Ali can see

Q:Chengdu GPS locator installed there

Chongqing World Network Technology Co. Ltd specializes in automobile broker GPS locator, let the owner through the mobile phone anti-theft device and bundled any stolen vehicle operation may be the first time the location and the information is sent to the mobile phone owner. Chongqing heaven and earth network company is still the industry first developed a personal positioning GPS locatorGPS locator product features:1, SMS control: the owner can send text messages via mobile phone to query the specific location and driving state of the vehicle2, vibration alarm: under the state of security, the vehicle was abnormal vibration, will trigger the alarm. Send alarm information to the owner.