Your Car's GPS Navigator: Your Guide on the Road

JamesFeb 23, 2024, 09:25 PM

The car GPS navigation system refers to a car tool with the function of a global satellite positioning system, and uses voice prompts to guide the driver to drive. Its built-in GPS antenna will receive data information transmitted from at least 3 of the 24 GPS satellites orbiting the Earth, combined with the electronic map stored in the car navigator, the position coordinate determined by the GPS satellite signal and Match this to determine the accurate position of the car on the electronic map. This is what is commonly referred to as the positioning function.


Based on positioning, it can provide the best driving route, road conditions ahead, and information about the nearest gas station, restaurant, hotel, etc. through the multifunction display. It is composed of three parts, the first is the ground control part, composed of the main control station, ground antenna, spillway station and communication auxiliary system. The second is the space part, composed of 24 satellites, distributed on 6 orbital planes. The third is the user device part, composed of GPS receiver and satellite antenna. The positioning accuracy for civil use now can reach within 10 meters.


Navigation System Function

The car GPS navigation system, its built-in GPS antenna will receive data information transmitted from at least 3 of the 24 GPS satellites orbiting the Earth, combined with the electronic map stored in the car navigator, the position coordinate determined by the GPS satellite signal and this Match to determine the accurate position of the car on the electronic map.


This is what is commonly referred to as the positioning function. Based on positioning, you can provide the best driving route, road conditions ahead, and information about the nearest gas station, restaurant, hotel, etc. through a multi-function display. If the GPS signal is unfortunately interrupted and you get lost, you can go back the same way because the GPS has recorded your driving route. Of course, these functions are all inseparable from the pre-compiled map software of the used area.


One of the great features of Car GPS is anti-theft, divided into static anti-theft and dynamic tracking. The former refers to the vehicle itself sending an alarm to the GPS monitoring center through its own monitoring system when the vehicle is parked and stolen, damaged, moved when the car owner leaves the car, and automatically contacts the car owner's mobile phone, phone alarm, etc. The latter can locate and track the stolen vehicle in motion, monitor the vehicle condition, record the vehicle track, and even control the vehicle to cut off electricity and fuel.


Classification of Navigation Systems

1. Handheld GPS navigator. Since handheld GPS does not support electronic maps well on the one hand, and its screen is small on the other hand, the information displayed is also small, which is impractical for car owners.


2. Factory-installed GPS navigation system. Currently, many high-end cars and high-configuration versions of domestic cars have factory-installed GPS navigation systems for selection.


3. Aftermarket GPS navigation system. Currently, there are many professional manufacturers providing GPS system installations for cars. This kind of GPS device is suitable for models without factory-installed GPS. The performance and after-sales service are also good, and the price is not too high, only a few thousand yuan is currently the most popular one.


4. GPS navigation head DIY. If you want to save money, if you are willing to put energy, you can buy a GPS navigation head yourself, connect it with your laptop or PDA via Bluetooth or cable, form a GPS system, with electronic maps such as Skywalkers, the effect is also very good, and the price is the lowest An GPS navigation head only costs a few hundred yuan, and if you already have a PDA or laptop, you can save a lot of expenses.


Common Functions of the Navigator

1) Map Query

a. You can search for the destination on the terminal.

b. You can record the location information of the places you often go to, and keep it, and share these location information with others.

c. Fuzzy query for gas stations, hotels, ATMs, etc. near your attachment or a certain location.


2) Route Planning

a. The GPS navigation system will automatically plan a route based on your set starting point and destination.

b. The planned route can be set to pass through certain waypoints.

c. The planned route can be set to avoid highways and other functions.


3) Navigation Function

a. Turn Voice Prompt Function

As long as the vehicle encounters a front intersection or turn, the car GPS voice system prompts the user to make a turn, just like a guide who knows the road telling you how to drive to the destination. The most important function in navigation makes you arrive safely at your destination without watching the terminal through voice prompts. It can provide full voice prompts, and drivers can achieve the full process of navigation without observing the display interface, making driving safer and more comfortable.

b. Screen Navigation

The operation terminal will display the map, the position of the car, the driving speed, the distance to the destination, the route prompt of the planned route, and the road information of the intersection direction prompt.

c. Re-plan Route

When you do not drive along the planned route, or when you go wrong at the intersection, the GPS navigation system will re-plan a new route to the destination based on your current location.


4) Add Points of Interest Function

Since most cities in China are in the construction stage, new buildings may pop up anywhere at any time. Therefore, the update of electronic maps has also become a concern for many consumers. Therefore, when encountering some target points not on the electronic map, as long as you are interested or think it is necessary, you can add this point or new route to the map. These added points of interest, like any point on the original map, can be used in the electronic map query and other functions.


5) Positioning

GPS can accurately determine its position by receiving satellite signals, with a position error of less than 10 meters. If the machine is equipped with a map, it can mark a mark at the corresponding position on the map. At the same time, GPS can replace the traditional compass, display the direction, replace the traditional altimeter, display the altitude information, etc.


6) Speed Measurement

Through GPS's reception and calculation of satellite signals, it can calculate the specific speed of driving, which is much more accurate than the general odometer.


7) Show Track

GPS has a track recording function, which can record the route that the user's vehicle has traveled, with an accuracy of less than 10 meters, and can even show the difference between the two lanes. When you come back, the user can start its return function and let it lead you back home smoothly along the way.

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