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by EquallyJust
2241 days ago
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Some automated train systems already do this for control such as some of the Vancouver SkyTrain lines. From the SelTrac wikipedia page: "in newer versions of SelTrac, the control signal is transmitted inside the running rails at radio frequency using IEEE 802.11 (WiFi) access points. " https://en.wikipedia.org/wiki/SelTrac#Communication |
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