Classification and the purchase tips of Car DVD Player GPS Navigation

GPS navigation is the outcome of modern science and technology, which mostly used with cars. It’s applied to positioning location, navigate and entertainment. With car’s popularity growing and the construction of roads, the economic ties between courtiers is becoming more and more frequency. Thus, the car DVD player navigation is become more important. The function of accurate positioning, navigate and entertainment can fully meet people’s needs and become the basic equipment of the car. Now, let me introduce the classification and purchase tips of GPS navigation.

According to the usage mode

1. Car DVD navigation system.

This device can be installed in the automotive center stack, usually it comes with the car when ship out. But because of the price issue, more and more people choose to buy the device and install it by themselves. Because of the built-in characteristic and specialized design, so the one-all performance of the interior decoration is very good. But there is still some advantages, inconvenience installation, hard to carry and the price is a little high.

2. Portable navigation system

The appearance of this device is no different from the ordinary MP4. It makes up the disadvantage of the car DVD navigation system. The highly flexibility configuration has been improved, usually it adsorption on the windscreen by a bracket sucker. It’s very convenience for the map upgrade and information update. Generally, this device has built-in battery, but because of the highly power consumption of the GPS mode, cost control and long time no battery backup, this device do not have the ability of service for longer length. Usually, its battery will be used up within 2 hours and depend on the car cigarette lighter for power. The domestic common brands are Newman, Garmin, ONDA, and Zenlane.

3. Handheld navigator

This kind of navigator has various appearances just like instrument, and have highly requirement of GPS positioning accuracy. Therefore, it more fit for professional area or GPS fans. The price is from several thousands to several ten thousands. Car DVD navigation system and Portable navigation system can fully meet our daily demands, this kind has no practical meaning for our life. The common domestic brands are Garmin, Magellan.

According to the functions

1. Only map GPS function.

This is the most classic GPS navigation, only have map navigation function. But because of consumers’ daily increase needs, this kind of navigation is on the decrease.

This is the most classic GPS navigation, only have map navigation function. But because of consumers’ daily increase needs, this kind of navigation is on the decrease.

2. Map navigation with certain location warning

Expect the map navigation function, it also has the certain location warning function. It uses the GPS positioning mode to enforce the certain location warning function. Through the integration related cross-platform to integrate software. It connect different manufacture’s fixed information database to take pictures and calculate the speed. At present, the domestic cross-platform integration software is the DSA of Zenlane.

3. Map navigation with certain location warning and floating speed measurement

Floating speed measurement is relative to fixed point measurement. The measurement device can flow, such as the police’ speed Radar gun, speed car and the removable Radar speed traps. For the fixed point measurement, we can transfer the fixed information to each manufacture by labor collecting coordinate. However, the floating speed measurement can not realized by this method. Flow velocity is integrated with module to launch the various flow velocities measuring instrument to the detection of radar wave. Apparently, the GPS navigation don’t have integrated radar module. Therefore, we need another way to increase the floating speed measurement for GPS___equip the GPS with speed measuring radar. In the market, there are various kinds of speed measuring radar, take the Zenlane X7 example. We connect the Zenlane X7 with the GPS navigation, and then integrate it through DSA software and add the floating speed measurement, then the work be done.

Purchase tips

1. Find out what generation the satellite receiving chips is.

This is the important components that determine the GPS’s accuracy and speed. Choose the backward chip means you need to wait for the GPS to tell you the right direction when facing cross, then you can drive away. If you drive at normal speed, you have to return to the original circuit to fix the drive path from time to time. Generally, the dealer won’t tell you the performance of the chips when you purchase the GPS.

2. Look at the map upgrade speed. With the fast speed of construction and development, if the manufacture can not offer you the latest update service, your GPS can not be very useful. Of course, the seller won’t tell you this point.

3. Find out the free charge map update time length. Generally, some informal manufacture use cracked map and don’t provide you update service. Some manufactures use original map but also don’t offer you the update service. But those who use original map and offer update service, they need extra money for your update service. Therefore, when choose the right GPS navigation system, you need to pay attention to the hardware and the software at the same time. Otherwise, the device won’t services you well just as trash.

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