PATENT CLAIM ANALYSIS

Application Number: 15752361
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-01
Patent Classification: ["299", "001400"]

Abstract:
A method for realizing a centralized control platform for large fully-mechanized coal mining face equipment is provided. In the method, on the basis of a coal cutter system, a hydraulic support system, a coal mining face transportation system, an emulsion pump station system, a mobile transformer substation system and a video monitoring system of the large fully-mechanized coal mining face equipment, real-time monitoring, centralized coordination control and information communication network are realized by a high-speed embedded computer UNO-3072A, a high-speed data acquisition card PCI-1716, a PowerBuilder front-end development platform, an SQLServer database, a Modbus TCP/IP communication protocol and an industrial Ethernet, thereby realizing centralized control over the large underground fully-mechanized coal mining face equipment. Automated production of fully-mechanized coal mining faces is realized.

Claim (Index 1):
A method for realizing a centralized control platform for large fully-mechanized coal mining face equipment, characterized in that, in the method, on the basis of various subsystems, comprising a coal cutter system, a hydraulic support system, a coal mining face transportation system, an emulsion pump station system, a mobile transformer substation system and a video monitoring system, of the large fully-mechanized coal mining face equipment, by using a control-layer high-speed industrial control computer and a high-speed data acquisition card thereof, a front-end development platform, a database and a communication network, under the centralized coordination control of a centralized control platform, it is realized that an unmanned coal mining method is performed automatically according to the coal mining process by the subsystems of the large underground fully-mechanized coal mining face equipment;\n the method for realizing a centralized control platform comprises real-time monitoring, centralized coordination control and information communication network; 1) the real-time monitoring is as follows: the high-speed data acquisition card acquires information of the subsystems of the large equipment, and the information is collected and fused by the control-layer high-speed industrial control computer and then enters the control-layer high-speed industrial control computer through network communication protocol for real-time monitoring control, wherein a method for controlling real-time monitoring is as follows: (1) the vibration of a cutting head of a coal cutter, the current and temperature of a motor and the temperature of a reduction gearbox in the coal cutter system, the temperature, oil temperature, oil level and oil pressure of a pump box, the input/output current, voltage, frequency and power of a transducer, the operation speed and operation direction of the coal cutter in the coal cutter system, and the flow, pressure and external spray flow of each portion of cooling water are monitored in real time, wherein, when a monitored value exceeds a set value, the system will give an alarm automatically and display failure information; (2) the front column pressure, rear column pressure and transition stroke of a hydraulic support in the hydraulic support system and the position of the coal cutter are monitored in real time; (3) the motor current and winding temperature of a scraper conveyer in the coal mining face transportation system, the oil temperature, oil level and axle temperature of the reduction gearbox, the pressure and flow of the cooling water, the pressure of an oil cylinder, and failure information of coal piling, smoke, longitudinal tear, belt breakage, slipping and tensioning of a belt portion are monitored in real time; (4) the water supply, oil supply, oil temperature, oil level, inlet pressure, outlet pressure, liquid level and concentration of the emulsion pump station system are monitored in real time; and (5) the A/B/C phase current, voltage, leakage current and power frequency on a primary side of the mobile transformer substation system, the voltage, current and insulation resistance on a secondary side, and the electric leakage, overcurrent, short circuit, over-temperature and open-phase failure states on both the primary side and the secondary side are monitored in real time; 2) the centralized coordination control is as follows: the information transmitted from the subsystems of the large equipment is analyzed and judged by the control-layer high-speed industrial control computer, and corresponding control is performed according to the position of the coal cutter if it is judged that the subsystems of the large equipment are in the normal state, wherein a method for the centralized coordination control is as follows: (1) when the fully-mechanized coal mining face starts to mine coal, the equipment is activated and controlled in a reverse coal flow order; (2) dual judgment and correction of the position of the coal cutter: the coal cutter should be located at one end of the coal mining face at the beginning of operation, and the position of the coal cutter at this time is set as an initial position; the number of chain links of the scraper conveyer walked by the coal cutter is continuously memorized during the operation of the coal cutter, so that the walking position of the coal cutter can be judged; in combination with the position of the coal cutter detected by the hydraulic support system using an infrared sensor, if the walking position of the coal cutter is consistent with the position of the coal cutter detected by the hydraulic support system, the action of the corresponding hydraulic support is automatically controlled, thereby automatically tracking the coal cutter and pulling the supports; if the walking position of the coal cutter is inconsistent with the position of the coal cutter detected by the hydraulic support system, an alarm is given out, and the operation of the coal cutter is stopped; and, once one reciprocating coal mining process is completed, the coal cutter returns to the initial position on the coal mining face; (3) the centralized control platform automatically judges a coal mining process section according to the position and operation direction of the coal cutter, and then transmits a centralized control command for allowing the corresponding hydraulic support to automatically track the coal cutter to implement a corresponding action; (4) during the coal mining process, the control-layer high-speed industrial control computer performs automatic height adjustment of a roller according to the vibration of the cutting head of the coal cutter, the oil pressure and the current of a roller motor, wherein a control scheme is a trajectory target preview control method based on memory cutting, which is realized according to a coal rock interface recognition technology with a radial basis function neural network; (5) during the coal mining process, the control-layer high-speed industrial control computer performs automatic tension control to chain links of the scraper conveyer according to the pressure of the oil cylinder, the current of the motor of the scraper conveyer and the position of the position of the coal cuter, and an automatic tension device for chain links of the scraper conveyer is automatically controlled after the pressure of the oil cylinder, the operation current of the scraper conveyer and the coal mining position are fused; (6) during the coal mining process, the control-layer high-speed industrial control computer automatically controls, according to the position of the coal cutter, the on and off of a camera in the video monitoring system so that the transmission of a large amount of video monitoring information is reduced; and (7) when the control-layer high-speed industrial control computer starts a coal mining operation, the operation state information of the subsystems of the large equipment is first acquired to judge whether the subsystems operate normally, wherein the judgment method is as follows: an inquiry signal is transmitted to each device, each subsystem of the large equipment, upon receiving the inquiry signal, responds appointed information indicating its own state to the control-layer high-speed industrial control computer, and the control-layer high-speed industrial control computer of the centralized control platform makes a judgment and then transmits a start signal if the starting conditions are satisfied; a. during the coal mining process, when it is detected that coal piling occurs in the scraper conveyer, the control-layer high-speed industrial control computer immediately controls an end hydraulic support in the electro-hydraulic control system to start the action of an iron claw mounted on a first-level protection side so as to quickly feed coal pile into a transfer link; b. during the coal mining process, the centralized control platform transmits the centralized control command to an end controller of an electro-hydraulic automatic control system, and the end controller controls a support controller to perform a specific action; when it is detected that the communication with the electro-hydraulic control system of the hydraulic support is interrupted, another end controller of the electro-hydraulic control system is activated immediately, and the two end controllers take charge of the normal control over controllers on two sides of an interruption point where the interruption failure occurs; c. during the coal mining process, the centralized control platform automatically adjusts, according to the operation status of the coal cutter, the operation speed of the coal mining face transportation system equipment; and d. during the coal mining process, when the centralized control platform judges that the inlet pressure and outlet pressure of an emulsion pump are greater than 1.1 Mpa, a reverse-washing filter is activated automatically; and 3) the information communication network is a network structure and communication mode for transmission of information between the subsystems of the large equipment and the centralized control platform, the control-layer high-speed industrial control computer and a control-layer high-speed industrial control computer for the subsystems of the large equipment utilize network communication based on a TCP/IP protocol, wherein a method for controlling the information communication network is as follows: (1) the control-layer high-speed industrial control computer and the high-speed industrial control computers for the subsystems realize communication through the information communication network; and (2) by using the control-layer high-speed industrial control computer as a client and using each subsystem of the large equipment as a server, the control-layer high-speed industrial control computer performs one polling on all the subsystems of the large equipment every 500 ms and then provides a control quantity according to the result of polling.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 88.0
- Lexical Diversity: 1.97143
- Patent Class: 299.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15869944', '15558768', '16303143', '14891288', '15319292']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.655189097638405
- 35 USC 102 Novelty (BERT): 0.5103194656592674
- Combined Prediction Score: 0.6407021344404913
- Mean Citation Score: 234.526546
- Max Citation Score: 311.83594
- Similarity Product: 262.45393372537853

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test