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Solution for the Intelligent Control System for Underground Slope Ramp Traffic



Safety production has always been the top priority in the mining production. With the expansion of the underground mining range and the increase of transportation tasks, the number of underground transportation vehicles has gradually increased. If there is no reasonable management and control system for trackless vehicles, the vehicles cannot understand the traffic situations, which will easily cause the vehicles to be blocked in a certain area, resulting in frequent reversing of vehicles, a waste of fuel, low transportation efficiency, and accidents. Therefore, a flexible, adaptable, safe and efficient traffic control system is particularly critical.


Three traffic signal machines are set at the entrance and exit of the ramp and the entrance and exit of the passing track. The signal system adopts automatic and manual two-way control. Via ground induction coils and WIFI equipment positioning technology,vehicles are measured which can be tracked and displayed throughout the whole process. The communication between dispatching room and vehicles, the communication among vehicles directly is connected by WIFI. The system realizes the unmanned on-site command and fully automatic operation mode.

System composition

(1) Entrances, passing tracks, and three -way intersections, including main road-- > auxiliary road, auxiliary road-- > main road, drift- > auxiliary road, all need to install no straight-travel and straight-traveling signs. And install no left and no right signs at the fork road.

(2)Install ground induction coils at key points which are used to detect the running conditions of vehicles. Since there is a full coverage of the WIFI signal in the ramp, positioning tags can be used to assist positioning vehicles. Based on the above detection, the system logically judges and directs the vehicle to run.

(3) The signal lights are controlled by Siemens PLC. Considering that the up-vehicle has the priority to pass the road section. When it is detected that there is an upward vehicle passing by, the signal light on the opposite road section will sign stop to make the downward vehicle enters the passing tack for waiting.

(4) The system also has the following functions:

1. Real-time display the ramp map, ground induction coils, the distribution of signal machines in the ramp, and the status of signal lights.

2. Display the direction of vehicles in each section, whether there are vehicles in the section and the number of vehicles.

3. Display the alarm screen: the system will automatically alarm if there is vehicle violation or the vehicle stays in the ramp too long. Alarm content includes: time, location, type.

4. Manual control functions of signal lights. When abnormal operation occurs in the ramp, manual control can be performed to switch the signal.


Reliable vehicle identification technology improves the system safety factor;

Flexible traffic rules meet the needs of underground transportation;

Intelligent traffic control mode to promote innovation in production management;

General industrial control system is expandable, simple and practical.

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