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Younger brother bought a used car how to know where his GPS positioning system installed
- Possible position:1 front windshield above the roof lights;2 in front of the windshield trim panel inside the hidden;3 hidden behind the dashboard;4 door partition;5 under the trim panel under the windshield;6 front bumper, need to pay attention to waterproof;7 windshield wipers, need to pay attention to waterproof;Note: if the windshield is covered with a metal insulation or heating layer, it will reduce the GPS received signal, resulting in GPS abnormal. Pay attention to the replacement of equipment installation position.s
Mobile GPS positioning charges it?
- Do not charge, even if there is no SIM card can also be used, you can do an experiment.s
Micro GPS locator locator locator shows no data display
- Usually do not have the following conditions:1 the following situations usually lead to offline:2. 1 power off or power off.3 through the phone to dial the SIM card number in the device, if prompted to shut down, or send any messages via SMS instructions did not reply, this is the case. Make sure that the power supply line is in question, whether the line is cut off, whether the power supply voltage and current are within the rated voltage and current of the equipment.4 no mobile phone signal for 2 devices.5 through the phone to dial the SIM card number, if the prompt can not be connected, not in the service area, this is the case. As far as possible to stop the car in a better signal environment. Installation position is not too closed, do not have the metal of the block, as far as possible by the installation. (in the underground garage, tunnel, remote occlusion, such as no cell phone signal area, will lead to equipment offline)s
Mankiw and strong GPS satellite positioning way which is good
- In fact, GPS equipment general strategies, mainly to see the software, convenient to use, you have to function, you can also see the two. Try software features, look at the map.s
What is the principle of automobile positioning system?
- 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.s
Is it necessary for the car to mount GPS
- See you, some companies, in order to facilitate the management of logistics vehicle scheduling, the installation of GPS positioning does a lot of convenience, but also improve efficiency; and the private car rental car ah ah the anti-theft function can be installed that need to locate remote oil cutting GPS; like a man opened a small truck and almost do not need to monitor what no one steal is not necessary;s
GPS locator in the ACC detection function is what mean
- This isAuxiliary power supply, ACC power supply;s
How to design and manufacture of micro GPS tracking locator
- 2, you can buy in the market, and then according to their own modules to assembles