Communication method based on frequency division and time division in positioning system
A technology of a positioning system and a communication method, which is applied to the communication field based on frequency division and time division in the positioning system, can solve the problems of the influence of communication speed and the limited number of terminals, and achieve the effect of improving the utilization rate, high cost performance, and ensuring relative real-time performance.
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[0043] The communication method based on frequency division and time division in the positioning system is specifically: positioning system (see figure 1 ) Contains a positioning base station and a locator, and data transmission is carried out between the positioning base station and the locator through wireless communication. The communication method between the positioning base station and the locator is as follows:
[0044] Step 1: Set up 4 channels for wireless data transmission in the positioning base station. In each channel, the positioning base station broadcasts synchronization headers regularly. The synchronization header contains synchronization codes and indicators. The fixed duration is called a working cycle t0-t1, and each working cycle contains N time slots slot1-slotN (see figure 2 ), each time slot has two working states: occupied state and idle state. The working states of all time slots are reflected in the indicator of the synchronization header (see image 3 ...
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