Stay point identification method and system based on high-frequency equidistant space-time trajectory data
A technology of spatio-temporal trajectory and identification method, applied in the field of stay point identification, can solve the problems of low accuracy, high time cost and money cost, and heavy psychological burden of the respondents, so as to avoid misjudgment, high accuracy of trajectory identification, The effect of ensuring coherence and accuracy
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[0049] The present invention proposes a stay point recognition method based on high-frequency equidistant space-time trajectory data, the flow chart is as follows figure 1 shown, including the following steps:
[0050] Step 1. Acquisition and preprocessing of travel trajectory data
[0051] 1) Collection of travel trajectory data: Based on the travel trajectory APP, the mobile phone positioning data of each travel individual is collected, so as to obtain the location marker data with a sampling interval of Δt (Δt is finally determined to be 15s). The travel trajectory data content of each travel individual includes the ID information of the travel individual, the latitude and longitude information of the location marker, the date of data collection, and the time information of arriving at the location marker (the time information is accurate to seconds). Wherein, part of the data diagram used in the present invention is as follows figure 2 shown.
[0052] 2) Preprocessing of...
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