Special Mic How to choose GPS navigation equipment how to choose GPS positioning monitoring equipment
1. precautions for buying GPS navigation equipment
1. Look at the effect and workmanship of the car navigation instrument.Observe whether the screen display is clear, whether the operating response is sensitive, the accuracy is good or bad, whether it is a capacitive screen or a resistance screen. The cheap product is generally a resistance screen, and the response speed is slower than the capacitive screen.See if the screen and the body joint are connected tightly, and the gap is not a good product.After turning on the side, do you have light leakage on the screen.
2. Select the navigation product with the built -in map with the "China navigation Electronic Map Qualification Certificate".Many manufacturers now do not have the "Chinese navigation Electronic Map Qualification Certificate", and they are also providing map navigation. Many navigation errors have occurred.
3. Is it the latest?Be careful to sell the eliminated car navigator product. It is best to ask before buying.The latest is the four -generation chip and autonomous chips, such as Garmin.
4. Finally recognize the anti -counterfeiting logo.Free upgraded genuine maps generally have anti -counterfeiting signs on the body's body. When the owner and friends buy a car navigator, you can query according to the phone, website, etc. on the logo.
Second, buyGPSSix major precautions for positioning monitoring equipment
1The stability of the product
First of all, consider choosing strong anti -electromagnetic interference and stable performanceGPSPositioning monitoring products.When you encounter bumps, high temperature, and electromagnetic interference, the poor environment in the car will affectGPSThe operation, so the stability of the product is particularly emphasized.
2, To pick up operators
It is necessary to consider choosing operators with strong networks and sustainable development to prevent the network coverage from being too small or not to get reliable follow -up services due to the failure of the company.
3The aesthetics of the product
GPSPositioning products are generally hidden installation, but high -end products are usually attached to car phones (handles). When buying, you must also consider whether the handle is fashionable, whether the shape is beautiful, whether it is coordinated with the front board and the color of the interior.
4, Differential module level
GPSThe module is divided into two Levels, civilian and industrial.Industrial -level modules have stable performance and relatively expensive prices; civilian -level modules have poor adaptability to the environment, but the price is relatively cheap.Consumers should consider cost -effectiveness.
5Safe energy transportation
GPSThe energy consumption is large, you should set it upGPSSpecial power supply prevents the failure of the circuit due to the unstable electro -frequency electrom frequency in a poor environment in a poor environment.The traffic volume of the car connection line is large, and the ordinary connection line is easy to burn. The quality of the connection line must be better to ensure reliable and safe.
6Doing force
The current good products are expensive,GPSThe price is generally the first installation fee plus50-100Yuan's monthly rent fee.Economic cars do their main force.
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