SMS Magnetic GPS Tracking Device
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SMS Magnetic GPS Tracking Device
- Q: How to track vehicle location
- Three, car positioning tracker also known as car positioning tracker, mainly car anti-theft GPS positioning products. The function of the vehicle positioning tracker includes short message positioning, timing positioning, network query, remote monitoring and remote locking.Four, the device can be in accordance with the user preset time to report the current location of the device information, speeding alarm: when the speed exceeds the preset speed, will send a warning voice prompts.
- Q: I would like to do the electric car GPS locator manufacturers, where can I buy and install star GPS.
- Never heard of this, I installed an et100 car is rice, but also to see others this installation
- Q: GPS locator really can be used for car theft
- With this full-time can open the oil；The gentleman does not guard against small things
- Q: At present, the global positioning system (GPS), vehicle positioning accuracy can be increased to less than 3 meters, if so, what is the theoretical basis? If not, what is the reason?
- We use the accuracy of less than 15 meters, the Americans themselves can be very highThe use of GPS positioning, will be affected by a variety of factors. The factors affecting the accuracy of GPS positioning with GPS satellite can be divided into the following four categories:(1) SA from the U.S. government interests, by reducing the precision of broadcast ephemeris (Technology), adding high frequency jitter in GPS reference signal (Technology) and other methods, reduce the ordinary users using GPS navigation and positioning accuracy.(2) the satellite ephemeris error in GPS positioning, calculation of satellite orbit parameters at a time the GPS satellite position required is provided by various types of [7] ephemeris, but irrespective of the type of ephemeris, the calculated satellite location will be its true position difference, this is the so-called ephemeris error.(3) the satellite clock error of satellite clock error is the error between the installation on the GPS satellite atomic clock clock with GPS standard time.(4) satellite signal transmitting antenna phase center deviation satellite signal transmitting antenna phase center deviation is the difference between the nominal phase center and the true phase center of the signal transmitting antenna on the GPS satellite.
- Q: How to find whether the car was installed GPS positioning
- If you are installing, others, others want to check your position. A remote mobile phone module that GPS equipment, so it was clear, as long as you go to the market to buy a mobile phone signal tracing electronic equipment is good, buy. Take this stuff in your car search, soon find the installation location! Or to the electronic market to buy a mobile phone signal or GPS signal shielding jamming equipment is good, is not very expensive, so no matter is not installed, others can not find your position! Some car guys have the equipment, so the installation of GPS anti-theft device is blocked, the basic on the waste!
- Q: GPS locator useful in the basement?
- There is no effect, because the tall buildings and hidden rooms, basements will block the satellite, satellite information lost.GPS locator is built-in GPS terminal module and a mobile communication module, GPS module for positioning data obtained at Internet on a server through the mobile communication module, which can realize the query terminal location on a computer or mobile phone.Principle: the spatial distribution of the GPS is composed of 24 GPS working satellites, these GPS working satellites together constitute the GPS satellite constellation, of which 21 are available for navigation of the satellite, the 3 for the active backup satellites. The 24 satellites are distributed around the earth in 6 orbits with an angle of 55 degrees. The cycle of the satellite is about 12. Each GPS working satellite sends out a signal for navigation and positioning. GPS users are using these signals to work.
- Q: GPS positioning is not necessary to use a mobile phone card
- GPS positioning is not necessary to use a mobile phone card
- Q: Expert advice, which GPS locator is better?
- With the P worm personal locator oh! The utility model has the advantages of low electric alarm, artificial shutdown alarm, fence alarm, exit channel alarm, SOS emergency alarm, accurate positioning, long standby time, small head, and only the size of a matchbox!
- Q: My friend bought a car to install satellite positioning system I am interested in my friend explained that I would like to ask who knows the professional interpretation (product principle) who knows who
- It can be seen that the role of the GPS navigation satellite system is to continuously transmit navigation messages. However, because the user receives the clock and satellite machine using a carrier clock may not always synchronized, so in addition to the 3D coordinates of X, y, Z users, but also the introduction of a t that is the time difference between the satellite and the receiver as unknown, and then use the 4 equation the 4 unknowns out. So if you want to know the location of the receiver, at least to receive the signal of 4 satellites.The GPS receiver may receive for accurate timing information to nanosecond time; for forecasting ephemeris in the next few months which the approximate location of the satellite; used to calculate the required positioning satellite coordinates of the broadcast ephemeris, the accuracy of several meters to tens of meters (each satellite is different at any time change) and GPS system information; such as satellite status.The GPS receiver can get the distance from the satellite to the receiver by the measurement of the code, because it contains the receiver satellite clock error and atmospheric propagation error, it is called the pseudo distance. The pseudo distance measured by the 0A code is called the pseudo distance of the UA code, the precision is about 20 meters, the pseudo distance measured by the P code is called the pseudo distance of the P code, and the precision is about 2 meters.
- Q: TwentySuch as the title, if you can about how much money, how to use? Within four days of the home was stolen four electric cars, it is no way to take those!
- Electric vehicle can install positioner, Beidou 360 electric vehicle anti-theft positioner is the main use of the Beidou satellite positioning system, real-time tracking, history inquiry, electronic fence, remote power and other functions.GPS locator is built-in GPS terminal module and a mobile communication module, GPS module for positioning data obtained through the mobile communication module (gsm/gprs network) to a Internet server, which can realize the query terminal position on the computer. Refer to
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SMS Magnetic GPS Tracking Device
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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