4.支架姿态与高度的测量，通过倾角传感器和 针对性设计的算法能够很好的 监测支架的姿态和高度。支架 倾角测量精度高达0.1度，高度 测量误差小于2cm。
8.远程控制，基于Profibus 总线技术的DRD支架电液控制 系统远程控制功能，已成功、稳定的在多个工作 面进行使用。用户根据现场情况的实际需要操作 支架动作的各个功能、设定动作时间、启动各种 成组控制功能，包括斜切进刀等全自动开采功能。
1. Quantified pushing conveyor: DRD’s electro-hydraulic control system adopts unique hardware design and accurate software processing algorithm, which can realize the displacement accuracy of the bracket less than 8mm during pushing conveyor.
2. Quantified pulling shield: DRD improves the problem well through software algorithm and practical control technology, making the error of pulling shield less than 10mm.
3. Shearer positioning: Based on the concept of simple design, the location of the shearer can be located by installing an infrared transmitter on the shearer.
4. Monitoring the status and measuring and height of the support: The status and height of the support can be well monitored by means of the inclination sensor and the algorithm designed specifically.The measuring accuracy of support inclination angle is up to 0.1 degree, and the measuring error of height is less than 2cm.
5. Support automatic rehydration function: The electro-hydraulic control system can automatically replenish the support pressure after the column pressure drops, which can monitor the support’s safety well. If the support fails to maintain pressure due to the discharge of liquid for many times, the centralized control software will give a false alarm, which provides further guarantee for safe production and is easy to maintain the equipment.
6. Automatically following-Shearer spay: It can realize the dynamic covering spray on the shearer, which can effectively play the role of dust removal.
7. High safety control technology: The function of progressive group pushing conveyor and incremental rear conveyor.
8. Remote control: DRD’s support electro-hydraulic control system is based on Profibus technology, and it has been successfully and stably used on many longwalls. According to the actual needs of the mine’s situation, the user operates various functions of the bracket action, sets the action time, and starts various group control functions, including automatic mining functions such as oblique cutting feed.
9. The technology of cutting triangle coal: It can realize the following functions: reverse oblique cutting feed of shearer and plough at both ends of working face, cutting triangle coal, repeatedly cleaning floating coal, automatic control of s-bend of support, control of lead support of support and automatic following-Shearer pushing conveyor.
10. Pressure testing on the longwall: The electro-hydraulic control system can process the pressure data of the longwall and make a visual display, which is of great help to analyze the roof pressure in the mining process of the longwall and improve the safety of production.