Abstract
Infectious diseases, such as COVID-19, SARS, MERS, etc., have seriously endangered human safety, economy, and education. During the spread of epidemics, restricting the range of activities of personnel is one of the options for the prevention and treatment of infectious diseases. A global navigation satellite system (GNSS), it can provide accurate coordinates of latitude and longitude to targets with GNSS receivers. However, it is not common to use GNSS coordinates to represent positions in social life. For epidemic management, it is important to know the locations (and addresses) of targets, especially in social life. When there are many targets, it is not easy to efficiently map these coordinates to locations. Therefore, we propose a GNSS-based crowd-sensing strategy for specific geographical areas that can be used to calculate how many targets are in specific geographical areas or whether a target is in a specific area. This strategy is based on the coordinates of latitude and longitude provided by GNSS to find the locations of these coordinates. As simulated data, the data records containing latitude and longitude in a well-known social networking service platform are used. The strategy is also available for mining hot spots or hot areas.
Highlights
A satellite navigation system with global coverage is called a global navigation satellite system (GNSS)
Points in the local database can be obtained with the similar structured queryTo language (SQL) command in (4), where ‘P’ is Points in the local database can be obtained with the similar SQL command in (4), where ‘P’ is the Pointsall in of thegeographic local database can be withthe thefields similar command in (4), the table that stores points, ‘x’ obtained and ‘y’ are forSQL
Taiwan Island and the administrative areas are used as geographic areas, and check-in places on Facebook are used as geographic points to verify the proposed strategy
Summary
A satellite navigation system with global coverage is called a global navigation satellite system (GNSS). System (GLONASS) [1,2] These systems allow small electronic receivers to determine their location with the values of longitude and latitude to high precision using time signals transmitted along a line of sight by radio from satellites. The corresponding locations of the latitude and longitude coordinates provided by a GNSS are evaluated. The check-in places are the locations that people visited Using these points as experimental samples to explore the crowd distribution is reasonable and credible.
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