How to distinguish the performance of small gps tracker?

A good development engineer can not only design the scheme, but also master and scientifically use various small gps trackers, which are all the necessary professional skills for wireless module layout. Next, I will introduce some basic requirements of small gps tracker for everyone:

1. Good receiving sensitivity

The receiving sensitivity is the minimum signal receiving power that the receiver can accurately take out the effective signal. The good receiving sensitivity of the GPS navigation module enables wireless products to have a stronger ability to capture weak signals. In this way, as the transmission distance increases, the received signal becomes weaker, and high-sensitivity wireless products can still receive data, maintain a stable connection, and greatly increase the transmission distance.

2. Faster and faster positioning time

The positioning time refers to how long the GPS device will start to determine its specific location on its own, usually in seconds. When this time is reached, the GPS device will send a signal to the GPS positioning satellite and begin to determine its specific location. It also includes the positioning time for the first operation, cold start, and hot (warm) start. Whether it is car navigation or the navigation map in the mobile phone, it is all based on the small gps tracker.

3. Position accuracy

Position accuracy refers to the degree to which the coordinate value obtained by the spatial point corresponds to its actual coordinate value. If the positioning accuracy is not functional and practical, even the luxurious GPS design and layout will make people unhappy. However, different navigation environments must first consider the application scenario, and then consider other factors.

The positioning accuracy can be investigated under static and dynamic conditions, and the actual effect of dynamic positioning is better than that of static positioning. The nominal positioning technical parameters of the small gps tracker refer to the measurement under the condition of fully open sky and high-quality satellite signal. Therefore, it is difficult to achieve the nominal positioning time and positioning accuracy in routine testing.

4. Power consumption

Power consumption is the loss of power, which refers to the difference between the input power and output power of machinery, equipment, and other devices. With the rapid growth of computer technology and microelectronics technology, the application scenarios of embedded systems are becoming more and more extensive. Environmental protection and energy saving is an international trend. For example, many chips in computers used to use 5V for power supply, but now use 3.3V and 1.8V, and clearly put forward the definition of green system. Many manufacturers attach great importance to the low power consumption of small gps trackers. The low-power design of circuits and systems is always an important consideration for electronic engineering professionals.

5. Time accuracy

Time accuracy is a classification based on the measurement of time required by each user, and is a specific method used to carry out measurement. Time accuracy can be divided into nanoseconds, picoseconds, microseconds, milliseconds, seconds, minutes, and hours according to the order of magnitude.

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