New technology revolutionizes energy-saving in subway systems, cutting costs significantly.
The article discusses how companies and experts in the rail transit industry are looking for ways to save energy and reduce costs. They are using patents to learn about new energy-saving technologies. Current systems for analyzing patents are not very helpful, so the researchers are using knowledge mapping to break down and organize patent information better. This will make it easier to search for and understand patents, helping companies find new ways to save energy in subways.