Gps speed limiter.GPS safety warning device

　　Safety warning devices, commonly known as "electronic dogs," generally have functions such as GPS fixed speed measurement, road safety information prompts, and speeding reminders, allowing drivers to receive information warnings and make decisions to avoid speeding violations.

　　Advantages and disadvantages of early warning devices:

　　It is divided into three types: ordinary, intelligent, and cloud electronic dog. Ordinary ones are cheap and have low maintenance costs, but require manual data updates; The intelligent speed measurement response is relatively sensitive, but there are significant regional restrictions and interference within the urban area; The cloud electronic dog has rich functions, upgraded backend cloud, high accuracy, but it is relatively expensive and uses a lot of traffic.

　　Selection of warning devices:

　　To avoid a high false alarm rate, an electronic dog that can automatically recognize other interfering signals can be selected; You can choose the corresponding function or type of electronic dog according to your needs, but a single function electronic dog is more professional than a multi-functional integrated electronic dog.

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