Mining control system

Abstract

The utility model provides a mining control system, which belongs to the field of automation control and comprises a control panel, and the control panel comprises a red-mine processor, and a multi-path switching value input circuit, a multi-path switching value output circuit, a multi-path input circuit of different currents and a multi-path output circuit of different currents which are electrically connected with the red-mine processor. The switching value input circuit and the different current input circuit are electrically connected with an external signal acquisition device, and the switching value output circuit and the different current output circuit are electrically connected with an external actuator. According to the utility model, signals of different devices can be acquired through the switching value input circuit and the different current input circuit, and the acquired signals are analyzed and processed by the mine processor and then can be connected with an external actuator through the switching value output circuit and the different current output circuit. Therefore, unified management and data sharing of equipment of different manufacturers are realized.

Description

Technical Field

[0001] This utility model belongs to the field of automation control, specifically relating to a mining control system. Background Technology

[0002] Currently, coal mine automation controllers typically use PLCs as the control core, with main equipment installed in explosion-proof chambers and data transmission via wired connections. The core of intelligent coal mine construction lies in equipment intelligence and its industrial Internet of Things (IoT) connectivity. However, underground coal mine equipment comes from different manufacturers, each system with its own interfaces and protocols, and even different databases and operating systems. This makes interoperability, connection, and collaboration between systems extremely difficult, and results in a lack of independent control. The diverse types, scattered layouts, and varied interfaces of underground automation control equipment lead to a large workload for data sharing and integration. This hinders the implementation of "mechanization replacing manpower, automation reducing manpower, and intelligent unmanned operation," presenting challenges in equipment interconnection, data sharing, and intelligent collaborative operation, thus failing to meet the needs of intelligent mine construction.

[0003] In summary, automation controllers, as control terminals for coal mine equipment, are a crucial part of the infrastructure of coal mines and have wide applications. Their technological level determines the foundation for the construction of intelligent mines. Currently, inconsistent controller interfaces and data across different manufacturers cause difficulties in data interoperability between underground equipment, requiring significant time and effort to resolve the issues of data interconnection and interoperability between equipment and collaborative operation between systems. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model provides a mining control system, including a control board. The control board includes a mining processor and multiple-channel switch input circuits, multiple-channel switch output circuits, multiple-channel input circuits with different currents, and multiple-channel output circuits with different currents, all electrically connected to the mining processor. The switch input circuits and the input circuits with different currents are electrically connected to external signal acquisition equipment, and the switch output circuits and the output circuits with different currents are electrically connected to external actuators.

[0005] Preferably, the input circuits with different currents are specifically 4-20mA input circuits; and the output circuits with different currents are specifically 4-20mA output circuits.

[0006] Preferably, it also includes multiple aviation connectors, through which the external signal acquisition device is electrically connected to the 4-20mA input circuit, and the external actuator is electrically connected to the 4-20mA output circuit or the switch output circuit through the aviation connectors.

[0007] Preferably, it also includes multiple control buttons, which are electrically connected to the switch input circuit.

[0008] Preferably, the control board further includes a WiFi Bluetooth radio frequency circuit and a switch module network port fiber optic circuit, both of which are electrically connected to the Kuanghong processor.

[0009] Preferably, it also includes multiple intrinsically safe power supplies, specifically one 24V to 24V intrinsically safe power supply and three 24V to 12V intrinsically safe power supplies. Among them, two 24V to 12V intrinsically safe power supplies are electrically connected to the two DC-DC circuits of the control board, one of the DC-DC circuits is electrically connected to the Kuanghong processor and the WiFi Bluetooth RF circuit, and the other DC-DC circuit is electrically connected to the switch module's network port fiber optic circuit, multiple switch input circuits, multiple switch output circuits, multiple 4-20mA input circuits, and multiple 4-20mA output circuits. The one 24V to 24V intrinsically safe power supply and the remaining one 24V to 12V intrinsically safe power supply are all electrically connected to the aviation connector.

[0010] Preferably, it also includes a display screen, which is electrically connected to the RS485 circuit of the control board, and the RS485 circuit is electrically connected to the mining processor.

[0011] Preferably, it also includes two solid-state relays, which are electrically connected to the two solid-state relay control circuits of the control board, and both solid-state relay control circuits are electrically connected to the Kuanghong processor.

[0012] The mining control system provided by this utility model has the following beneficial effects:

[0013] This invention, by setting up multiple switch input circuits, multiple switch output circuits, multiple input circuits with different currents, and multiple output circuits with different currents in the control board, can collect signals from different devices through the switch input circuits and input circuits with different currents. After the collected signals are analyzed and processed by the Kuanghong processor, they can be electrically connected to external actuators through the switch output circuits and output circuits with different currents, thereby realizing unified management and data sharing of equipment from different manufacturers.

[0014] This invention solves the problems of multiple data interfaces, inconsistent protocols, and large workload for data integration in control equipment, and realizes unified control of big data. Attached Figure Description

[0015] To more clearly illustrate the embodiments and design schemes of this utility model, the accompanying drawings required for this embodiment will be briefly described below. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a circuit diagram of a mining control system according to an embodiment of the present utility model;

[0017] Figure 2 This is the circuit diagram for the control board;

[0018] Figure 3 This is a device connection diagram according to an embodiment of the present utility model;

[0019] Figure 4 This is a diagram showing the coupling of the power supply circuit.

[0020] Figure 5 This is a detailed coupling diagram of the power supply circuit. Detailed Implementation

[0021] To enable those skilled in the art to better understand and implement the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, which will not be elaborated further here.

[0024] Example

[0025] This utility model provides a mining control system, specifically as follows: Figure 1As shown, the control box of the mining control system is equipped with two wide-voltage switching power supplies, one 24V to 24V intrinsically safe power supply, three 24V to 12V intrinsically safe power supplies, two solid-state relays, one control board, one 7-inch display screen, and five control buttons. Figure 1 The system includes buttons, multiple aviation connectors, and terminal blocks. The switching power supply converts 60-265V AC to 24V DC; the 24V to 24V intrinsically safe power supply converts 24V DC to 24V intrinsically safe power for external output; the 24V to 12V intrinsically safe power supply converts 24V DC to 12V intrinsically safe power, with two 24V to 12V intrinsically safe power supplies powering the control board and one 24V to 12V intrinsically safe power supply used for external output; solid-state relays are used for non-safety switching outputs. The control board is the core device of this invention, used to perform various detection, communication, and control tasks; the display screen shows various system status information; buttons are used to set parameters and control device operating status; and aviation connectors are used to connect antennas, network cables, fiber optics, and other control lines.

[0026] Specifically, such as Figure 2 As shown, the control board consists of a Kuanghong processor and 13-channel digital input circuits, 6-channel digital output circuits, an RS485 circuit, 2-channel 4-20mA output circuits, 3-channel 4-20mA input circuits, a WiFi / Bluetooth RF circuit, a switch module network port fiber optic circuit, 2-channel solid-state relay control circuits, and 2-channel DC-DC circuits, all electrically connected to the Kuanghong processor. The digital input circuits and 4-20mA input circuits are electrically connected to external signal acquisition equipment, while the digital output circuits and 4-20mA output circuits are electrically connected to external actuators. The external signal acquisition equipment is electrically connected to the 4-20mA input circuits via an aviation connector, and the external actuators are electrically connected to the 4-20mA output circuits or digital output circuits via aviation connectors. Control buttons are electrically connected to the digital input circuits. The WiFi / Bluetooth RF circuit and the switch module network port fiber optic circuit are both electrically connected to the Kuanghong processor. Additionally, the display screen is electrically connected to the RS485 circuit, and the two solid-state relays are correspondingly electrically connected to the 2-channel solid-state relay control circuit. Two 24V to 12V intrinsically safe power supplies are electrically connected to the two DC-DC circuits on the control board. One DC-DC circuit is electrically connected to the Kuanghong processor and the WiFi and Bluetooth RF circuits. The other DC-DC circuit is electrically connected to the switch module's network port fiber optic circuit, multiple digital input circuits, multiple digital output circuits, multiple 4-20mA input circuits, and multiple 4-20mA output circuits. One 24V to 24V intrinsically safe power supply and the remaining 24V to 12V intrinsically safe power supply are electrically connected to the aviation connector.

[0027] Working Principle: The mining processor runs the mining system, interacting with other circuits on the control board, collecting various input values, calculating the results, and controlling other outputs to output corresponding results to achieve a complete control process. The digital input circuit detects external digital signals, such as proximity switches, emergency stop switches, and click operation status signals. The digital output circuit controls other externally connected devices, such as brakes, warning lights, and valves. The RS485 circuit communicates with the display screen to control its content. The 4-20mA output circuit provides fine control of external devices, such as motor speed and hydraulic rod length. The 4-20mA input voltage... The circuitry is typically used to connect various sensors, such as ultrasonic distance sensors, speed sensors, and pressure sensors; the WiFi and Bluetooth RF circuitry is used to enable the device's wireless communication function, allowing WiFi access to the internet and other sub-controllers, and Bluetooth connection to mobile phones or other wireless sensors; the switch module's network port and fiber optic circuitry are used to enable the device's wired communication function, enabling reliable network connections using network cables or fiber optics; the solid-state relay control circuitry is used to control two solid-state relays within the explosion-proof cavity, enabling the device's non-safety signal control function; and the DC-DC circuitry is used to convert the two 12V intrinsically safe power supplies input within the explosion-proof cavity into 5V or 3.3V to power the various functional modules on the control board.

[0028] The control system of this utility model is used for connecting underground mining equipment, including devices such as mining tablets, mobile phones, mine lamps, motors, frequency converters, and sensors. Figure 3 As shown, devices such as the Kuanghong tablet, mobile phone, and mining lamp connect to the Kuanghong processor in the control box via a wired network (switch module network port fiber optic circuit) or a wireless network (WiFi Bluetooth RF circuit). The Kuanghong processor reads data from the connected devices, analyzes it using algorithms, and outputs corresponding data, which is then transmitted to devices such as motors, frequency converters, and sensors in the form of analog or digital signals to achieve system control. Specifically, digital signals are transmitted through a switch output circuit, while analog signals are transmitted through a 4-20mA output circuit.

[0029] In addition, in this embodiment, one 24V to 12V intrinsically safe power supply powers the Mining Hong processor and the WiFi and Bluetooth RF circuits, while the other 24V to 12V intrinsically safe power supply powers the switch module's network port fiber optic circuit (switch module) and other input / output circuits. The two power supplies are electrically isolated using optocoupler chips, specifically as follows: Figure 4 and Figure 5 As shown, this is to meet the requirements for intrinsic safety certification.

[0030] The specific applications of this utility model are as follows:

[0031] The following six application scenarios are all underground equipment. Because the mine control box is installed underground, the underground contains intrinsically safe or explosion-proof sensors, workers use mine lamps for lighting and positioning underground, and the underground central substation, pump room, air door, and conveyor belt are essential locations.

[0032] (1) The first objective of this utility model is to realize the function of “auxiliary inspection”.

[0033] The sensors transmit data to the Kuanghong controller via wired or wireless means. During inspections, Kuanghong mobile phones or tablets can be used to collect data from within the Kuanghong controller through the Kuanghong "One-Touch Transfer" function, eliminating the need to collect data from each sensor individually, thus making inspection tasks easier to perform.

[0034] (2) The second objective of this utility model is to realize the "authorized operation" function.

[0035] The operation of mining equipment restricts the control permissions of different people. Only the operator can control the start and stop of the equipment and modify configuration parameters. When a person approaches the mining equipment controller, the controller will use the mining equipment's "self-discovery and self-identification" function to read the person's mining lamp data and identify the lamp card number, thereby determining whether the person has control permissions. This is equivalent to adding a safety lock to the equipment control to prevent unauthorized personnel from operating the equipment by mistake.

[0036] (3) The third objective of this utility model is to achieve the "personnel restriction" function.

[0037] Entry to important workplaces such as substations and pump rooms is restricted to unauthorized personnel. When a person approaches the mine's control panel, the panel uses the mine's "self-discovery and self-identification" function to read the person's mine lamp data, identify the lamp card number, and thus determine whether the person has access privileges.

[0038] (4) The fourth objective of this utility model is to realize the "damper control" function.

[0039] Infrared sensors are used as monitors, and voice alarms are also provided to ensure the smooth and safe passage of pedestrians and vehicles. The controller receives signals from the infrared sensor receiver, identifies them, and then controls the actuators (cylinders or hydraulic cylinders) to open the damper; after a 7-second delay (adjustable via PLC), it automatically controls the actuators to close the damper.

[0040] (5) The fifth objective of this utility model is to achieve the function of "sprinkling water to control dust".

[0041] The system is suitable for situations with a lot of smoke and dust or excessively high temperatures. When the smoke, temperature, dust or touch sensor is activated, the control box starts the water spraying solenoid valve and begins spraying water. When someone passes by, the infrared sensor is triggered and the water spraying stops. The water spraying resumes after the person passes by.

[0042] (6) The sixth objective of this utility model is to realize the function of "intelligent belt speed regulation control".

[0043] The above-described embodiments are merely preferred embodiments of this utility model. The scope of protection of this utility model is not limited thereto. Any simple changes or equivalent substitutions of the technical solutions that can be obviously obtained by those skilled in the art within the scope of the technology disclosed in this utility model shall fall within the scope of protection of this utility model.

Claims

1. A mining control system, characterized in that, The system includes a control board, which comprises a mining processor and multiple digital input circuits, multiple digital output circuits, multiple input circuits with different currents, and multiple output circuits with different currents, all electrically connected to the mining processor. The digital input circuits and the input circuits with different currents are electrically connected to an external signal acquisition device, and the digital output circuits and the output circuits with different currents are electrically connected to an external actuator.

2. The mining control system according to claim 1, characterized in that, The input circuits with different currents are specifically 4-20mA input circuits; the output circuits with different currents are specifically 4-20mA output circuits.

3. The mining control system according to claim 2, characterized in that, It also includes multiple aviation connectors, through which external signal acquisition devices are electrically connected to the 4-20mA input circuit, and external actuators are electrically connected to the 4-20mA output circuit or switch output circuit via the aviation connectors.

4. The mining control system according to claim 3, characterized in that, The control board also includes a WiFi Bluetooth radio frequency circuit and a switch module network port fiber optic circuit, both of which are electrically connected to the Kuanghong processor.

5. The mining control system according to claim 4, characterized in that, It also includes multiple intrinsically safe power supplies, specifically one 24V to 24V intrinsically safe power supply and three 24V to 12V intrinsically safe power supplies. Among them, two 24V to 12V intrinsically safe power supplies are electrically connected to the two DC-DC circuits of the control board, one of the DC-DC circuits is electrically connected to the Kuanghong processor and the WiFi Bluetooth RF circuit, and the other DC-DC circuit is electrically connected to the switch module's network port fiber optic circuit, multiple switch input circuits, multiple switch output circuits, multiple 4-20mA input circuits, and multiple 4-20mA output circuits. The one 24V to 24V intrinsically safe power supply and the remaining one 24V to 12V intrinsically safe power supply are all electrically connected to the aviation connector.

6. The mining control system according to claim 1, characterized in that, It also includes a display screen, which is electrically connected to the RS485 circuit of the control board, and the RS485 circuit is electrically connected to the mining processor.

7. The mining control system according to claim 1, characterized in that, It also includes two solid-state relays, which are electrically connected to the two solid-state relay control circuits on the control board. Both solid-state relay control circuits are electrically connected to the Kuanghong processor.

8. The mining control system according to claim 1, characterized in that, It also includes multiple control buttons, which are electrically connected to the switch input circuit.

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