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Car navigation can be classified according to the following aspects.
I. Classification by model navigation:
1. Special car DVD navigation: one machine is equipped with one model (most of them need to remove the original car CD)
2. General type: frame can be modified for various models
3. Split machine: special navigation subdivision products for special cars, without removing the original car CD and other components, upgrade to DVD navigation products
2. Navigation classification by function:
1.Traditional handwritten navigation
2. Voice-activated navigation:
1) Voice-activated navigation of live secretary services;
a, Bluetooth push-to-talk voice-controlled navigation
Advantages: Connect directly with the mobile phone's Bluetooth and car navigation host. After Bluetooth is connected for the first time, it will be actively connected later. The signal is stable and the quality is reliable; b, plus the voice control navigation of the communication box;
Defect: With the addition of a communication box, its signal receiving module and a mobile phone signal receiving module of thousands of dollars are incomparable. When it is in a poor signal area, the mobile phone has a signal and the car navigation may not have a signal. Multiple customer complaints. In addition, compared to the Bluetooth push-to-talk, it is necessary to add a communication box and a phone card, which is very troublesome; 2), voice-controlled navigation with human-machine dialogue;
Defect: The recognition rate of speech recognition software is not high;
I. Classification by model navigation:
1. Special car DVD navigation: one machine is equipped with one model (most of them need to remove the original car CD)
2. General type: frame can be modified for various models
3. Split machine: special navigation subdivision products for special cars, without removing the original car CD and other components, upgrade to DVD navigation products
2. Navigation classification by function:
1.Traditional handwritten navigation
2. Voice-activated navigation:
1) Voice-activated navigation of live secretary services;
a, Bluetooth push-to-talk voice-controlled navigation
Advantages: Connect directly with the mobile phone's Bluetooth and car navigation host. After Bluetooth is connected for the first time, it will be actively connected later. The signal is stable and the quality is reliable; b, plus the voice control navigation of the communication box;
Defect: With the addition of a communication box, its signal receiving module and a mobile phone signal receiving module of thousands of dollars are incomparable. When it is in a poor signal area, the mobile phone has a signal and the car navigation may not have a signal. Multiple customer complaints. In addition, compared to the Bluetooth push-to-talk, it is necessary to add a communication box and a phone card, which is very troublesome; 2), voice-controlled navigation with human-machine dialogue;
Defect: The recognition rate of speech recognition software is not high;
