Tunnel traffic flow sensing system
The invention relates to a tunnel traffic flow sensing system which comprises WIFI probe equipment and a server. The WIFI probe equipment is arranged in the tunnel, detects WIFI signals of the surrounding environment in real time and uploads the WIFI signals to the server, and the server carries out...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to a tunnel traffic flow sensing system which comprises WIFI probe equipment and a server. The WIFI probe equipment is arranged in the tunnel, detects WIFI signals of the surrounding environment in real time and uploads the WIFI signals to the server, and the server carries out data processing on the WIFI signals to represent traffic flow data in the tunnel and feeds back the traffic flow data to vehicles; the data processing of the server comprises the steps that n WIFI probe devices are arranged along a tunnel, WIFI signals detected by the ith WIFI probe device serve as a set A, WIFI signals detected by the (i-1) th or (i + 1) th WIFI probe device serve as a set B, the moving direction of the WIFI devices is judged through arrays in the set A and the set B, the WIFI signals moving in the one-way mode are selected to form a set C, and the WIFI signals in the one-way mode are selected to form a set D; and de-duplicating or combining the set C to obtain traffic flow data. According to the |
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