Mining flame-proof and intrinsic safety type linkage access control equipment and control method thereof

Abstract

The invention belongs to the technical field of mining access control equipment, and discloses mining flame-proof and intrinsic safety type linkage access control equipment and a control method thereof.The equipment comprises an equipment shell, and the interior of the equipment shell is divided into a flame-proof cavity and an intrinsic safety cavity; a core processor, an explosion-proof power supply module and an intrinsic safety isolation plate are mounted in the explosion-proof cavity; the intrinsically safe cavity is internally provided with a wiring terminal; the explosion-proof type equipment and the intrinsically safe type equipment are arranged at the periphery; the control method comprises the following steps: S1, signal acquisition; s2, signal verification; s3, generating an instruction; and S4, results show that the method has the following beneficial effects: 1, comprehensive compatibility: all explosion-proof equipment is supported, and the method adapts to the industry development trend; 2, the safety is high: the intrinsically safe cavity only reserves a wiring terminal, the structure is simplified, and the intrinsically safe output safety is ensured at the same time; and 3, intelligent linkage: the personnel management precision and the emergency response capability are improved. And 4, economy and high efficiency: equipment upgrading cost and maintenance complexity are reduced, and equipment life cycle is prolonged.

Description

Technical Field

[0001] This invention relates to the field of mining access control equipment technology, specifically to a mining explosion-proof and intrinsically safe linkage access control device and its control method. Background Technology

[0002] In the mining industry, ensuring the safety and efficient management of underground workers is of paramount importance. With the advancement of technology, intelligent mining has become an inevitable trend in the industry's development. Among these, precise management of underground personnel is a key link that directly relates to the safety of mine production and operational efficiency. As an important means of personnel management, the development and application of intelligent access control systems in mines have a significant impact on the level of mine intelligence.

[0003] Intelligent access control equipment in mines mainly falls into three categories: Explosion-proof type for mining: Large and heavy, suitable for high-power environments, but with lower safety.

[0004] Explosion-proof and intrinsically safe type for mining: combines explosion-proof and intrinsically safe characteristics, but has a complex structure and limited compatibility.

[0005] Intrinsically safe mining equipment: It is highly safe and compact, and represents the industry trend, but it cannot be directly linked with explosion-proof equipment.

[0006] Existing explosion-proof access control systems only contain a single explosion-proof control chamber and can only be used with explosion-proof or explosion-proof / intrinsically safe equipment, making them incompatible with intrinsically safe equipment. This results in existing equipment being unable to adapt to the trend of intrinsic safety during the intelligent upgrading of mines, leading to resource waste and compatibility issues. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides a mine-use explosion-proof and intrinsically safe linkage access control device and its control method. This invention is achieved through the following technical solutions.

[0008] A mine-use explosion-proof and intrinsically safe linkage access control device includes an equipment shell, the interior of which is divided into two independent cavities: an explosion-proof cavity and an intrinsically safe cavity. The explosion-proof cavity is equipped with a core processor, an explosion-proof power module, and an intrinsically safe isolation plate. The explosion-proof power module is used to provide high-power power to the surrounding explosion-proof equipment. The intrinsically safe cavity is equipped with a wiring terminal. The intrinsically safe isolation plate is used to convert the high-power power of the explosion-proof power module into intrinsically safe power and deliver it to the wiring terminal. The wiring terminal is directly connected to the external intrinsically safe equipment and is used to provide intrinsically safe power to the intrinsically safe equipment. The core processor transmits signals directly to explosion-proof equipment on one hand, and to intrinsically safe equipment on the other hand through wiring terminals.

[0009] As a further embodiment of the present invention, the explosion-proof device is connected to the explosion-proof power module and the core processor via an armored cable or an explosion-proof junction box.

[0010] As a further embodiment of the present invention, the explosion-proof device includes, but is not limited to, area sensors and explosion-proof actuators.

[0011] As a further embodiment of the present invention, the explosion-proof actuator is specifically an access control motor.

[0012] As a further embodiment of the present invention, the intrinsically safe device is connected to the terminal block via a mining shielded cable.

[0013] As a further embodiment of the present invention, the intrinsically safe device includes an identity scanner and a display terminal.

[0014] As a further embodiment of the present invention, the identity recognition device is a face recognition terminal or a card reader.

[0015] A control method for a mine explosion-proof and intrinsically safe interlocking access control device includes the following steps: S1, Signal Acquisition: The face recognition terminal or card reader acquires the identity recognition signal and sends it to the core processor through the terminal block; the area sensor status signal is also sent to the core processor. S2, Signal Verification: The core sensor performs linkage verification on the identity recognition signal and the status signal of the area sensor, and generates the verification result. S3, Command Generation: The core sensor generates commands based on the verification results to control the access control motor to perform operations. S4, the results show that the core processor updates the log and controls the display terminal to display the verification results and generated instructions.

[0016] As a further aspect of the present invention, the specific method for linkage verification and the type of verification result in step S2 are as follows: If the area sensor status signal is in an alarm state, the verification result is verification failed. If the area sensor status signal is not in an alarm state, the identity recognition signal is verified. If the face recognition terminal or card reader authenticates successfully, the verification result is "verification passed". If the face recognition terminal or card reader fails to authenticate, the verification result is "verification failed".

[0017] As a further aspect of the present invention, the type of instruction generated in step S3 is: If the verification result is successful, the generated instruction is to open the access control. If the verification result is that the verification fails, the generated instruction is to keep the access control closed.

[0018] The beneficial effects of this invention are as follows: 1. Fully compatible: Supports all types of explosion-proof equipment, protecting users' existing investments and adapting to industry development trends.

[0019] 2. High safety: The intrinsically safe cavity only has reserved wiring terminals, which simplifies the structure while ensuring the safety of intrinsically safe output, and meets the safety standards of coal mines.

[0020] 3. Intelligent linkage: The core processor supports custom linkage logic, improving the accuracy of personnel management and emergency response capabilities.

[0021] 4. Economical and efficient: Reduces equipment upgrade costs and maintenance complexity, and extends equipment lifespan. Attached Figure Description

[0022] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 : A schematic diagram of the structure of a mine explosion-proof and intrinsically safe linkage access control device according to the present invention; Figure 2 : Schematic diagram of the composition of explosion-proof equipment; Figure 3 Schematic diagram of the intrinsically safe equipment; Figure 4 A flowchart of a control method for a mine explosion-proof and intrinsically safe interlocking access control device; Figure 5 Logic diagram for signal verification and instruction generation.

[0024] The attached figures are labeled as follows: 1-Equipment housing, 2-Explosion-proof chamber, 3-Intrinsically safe chamber, 4-Core processor, 5-Explosion-proof power module, 6-Intrinsically safe isolation plate, 7-Explosion-proof equipment, 8-Terminal block, 9-Intrinsically safe equipment. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figure 1As shown, a mine explosion-proof and intrinsically safe linkage access control device includes a device housing 1, the interior of which is divided into two independent cavities: an explosion-proof cavity 2 and an intrinsically safe cavity 3. The explosion-proof chamber 2 is equipped with a core processor 4, an explosion-proof power module 5, and an intrinsically safe isolation plate 6. The explosion-proof power module 5 is used to provide high-power power to the external explosion-proof equipment 7. The intrinsically safe cavity 3 is equipped with a terminal block 8. The intrinsically safe isolation plate 6 is used to convert the high power of the explosion-proof power module 5 into intrinsically safe power and deliver it to the terminal block 8. The terminal block 8 is directly connected to the external intrinsically safe equipment 9 and is used to provide intrinsically safe power to the intrinsically safe equipment 9. The core processor 4 transmits signals directly to the explosion-proof device 7 on one hand, and transmits signals to the intrinsically safe device 9 through the terminal block 8 on the other hand.

[0027] like Figure 2 As shown, the explosion-proof device 7 is connected to the explosion-proof power module 5 and the core processor 4 via armored cables or explosion-proof junction boxes; the explosion-proof device 7 includes, but is not limited to, area sensors and explosion-proof actuators; the explosion-proof actuator is specifically an access control motor.

[0028] like Figure 3 As shown, the intrinsically safe device 9 is connected to the terminal block 8 via a mining shielded cable; the intrinsically safe device 9 includes an identity recognition device and a display terminal; the identity recognition device is a face recognition terminal or a card reader.

[0029] like Figure 4 As shown, a control method for a mine explosion-proof and intrinsically safe interlocking access control device includes the following steps: S1, Signal Acquisition: The face recognition terminal or card reader acquires the identity recognition signal and sends it to the core processor 4 through the terminal block 8; the area sensor status signal is also sent to the core processor 4.

[0030] S2, Signal Verification: The core sensor performs linkage verification of the identity recognition signal and the status signal of the area sensor, and generates the verification result.

[0031] like Figure 5 As shown, the specific methods for linkage verification and the types of verification results are as follows: If the area sensor status signal is in an alarm state, the verification result is verification failed. If the area sensor status signal is not in an alarm state, the identity recognition signal is verified. If the face recognition terminal or card reader authenticates successfully, the verification result is "verification passed". If the face recognition terminal or card reader fails to authenticate, the verification result is "verification failed".

[0032] S3, Command Generation: The core sensor generates commands based on the verification results to control the access control motor to perform operations.

[0033] The generated instruction category is: If the verification result is successful, the generated instruction is to open the access control. If the verification result is that the verification fails, the generated instruction is to keep the access control closed.

[0034] S4, the results show that the core processor 4 updates the log and controls the display terminal to display the verification results and generated instructions.

[0035] Taking a normal access control opening as an example, the workflow of this invention will be described in detail.

[0036] First, the facial recognition terminal collects the identity recognition signal and the area sensor status signal and sends them to the core processor 4; if the identity recognition signal passes and the area sensor status signal is not in an alarm state, the core sensor generates a verification result; then the core sensor generates an access control opening command, controlling the access control motor to open the access control; the core processor 4 updates the log, saves the verification result and the generated command, and displays "Verification passed, access control opened" on the display terminal.

[0037] The core of this application is: 1. Integrated dual-cavity structure: The equipment shell 1 is an explosion-proof structure. The interior is divided into two independent cavities, explosion-proof cavity 2 and intrinsically safe cavity 3, through physical and electrical isolation. The intrinsically safe isolation plate 6 is integrated in the explosion-proof cavity 2, and the intrinsically safe cavity 3 is only equipped with wiring terminals 8, realizing the coexistence and safe linkage of explosion-proof and intrinsically safe circuits.

[0038] 2. Wide compatibility: Through the dual-cavity interface, it can be directly connected to all types of access control equipment (explosion-proof type, intrinsically safe type) in the mine, without the need for additional conversion equipment.

[0039] 3. Smooth upgrade capability: When the mine is upgraded to be intelligent, the wiring only needs to be moved from the explosion-proof chamber 2 to the intrinsically safe chamber 3, and the main equipment does not need to be replaced, reducing costs and complexity.

[0040] 4. Flexible linkage strategy: The core processor 4 supports mixed signal processing and can formulate complex linkage logic (such as intrinsic safety certification + explosion-proof sensor conditions) to improve the level of intelligence.

[0041] 5. Safety and Reliability: The intrinsically safe isolation plate 6 ensures that the intrinsically safe output meets the standards, the explosion-proof cavity 2 ensures the stability of the core circuit, and the dual cavities independently comply with the mining explosion-proof specifications.

[0042] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. A mine-use explosion-proof and intrinsically safe interlocking access control device, characterized in that, The equipment includes a housing, the interior of which is divided into two independent cavities: an explosion-proof cavity and an intrinsically safe cavity. The explosion-proof cavity is equipped with a core processor, an explosion-proof power module, and an intrinsically safe isolation plate. The explosion-proof power module is used to provide high-power power to the surrounding explosion-proof equipment. The intrinsically safe cavity is equipped with a wiring terminal. The intrinsically safe isolation plate is used to convert the high-power power of the explosion-proof power module into intrinsically safe power and deliver it to the wiring terminal. The wiring terminal is directly connected to the external intrinsically safe equipment and is used to provide intrinsically safe power to the intrinsically safe equipment. The core processor transmits signals directly to explosion-proof equipment on one hand, and to intrinsically safe equipment on the other hand through wiring terminals.

2. The mine explosion-proof and intrinsically safe linkage access control device according to claim 1, characterized in that, The explosion-proof equipment is connected to the explosion-proof power module and the core processor via armored cables or explosion-proof junction boxes.

3. A mine explosion-proof and intrinsically safe interlocking access control device according to claim 1, characterized in that, The explosion-proof equipment includes, but is not limited to, area sensors and explosion-proof actuators.

4. A mine explosion-proof and intrinsically safe interlocking access control device according to claim 3, characterized in that, The explosion-proof actuator is specifically an access control motor.

5. A mine explosion-proof and intrinsically safe interlocking access control device according to claim 1, characterized in that, The intrinsically safe equipment is connected to the terminal block via a mining shielded cable.

6. A mine explosion-proof and intrinsically safe interlocking access control device according to claim 1, characterized in that, The intrinsically safe device includes an identity reader and a display terminal.

7. A mine explosion-proof and intrinsically safe interlocking access control device according to claim 6, characterized in that, The identity recognition device is a facial recognition terminal or a card reader.

8. A control method for a mine explosion-proof and intrinsically safe interlocking access control device, implemented based on the device described in any one of claims 1-7, characterized in that, Includes the following steps: S1, Signal Acquisition: The face recognition terminal or card reader acquires the identity recognition signal and sends it to the core processor through the terminal block; the area sensor status signal is also sent to the core processor. S2, Signal Verification: The core sensor performs linkage verification on the identity recognition signal and the status signal of the area sensor, and generates the verification result. S3, Command Generation: The core sensor generates commands based on the verification results to control the access control motor to perform operations. S4, the results show that the core processor updates the log and controls the display terminal to display the verification results and generated instructions.

9. The control method for a mine explosion-proof and intrinsically safe interlocking access control device according to claim 8, characterized in that, In step S2, the specific method for linkage verification and the type of verification result are as follows: If the area sensor status signal is in an alarm state, the verification result is verification failed. If the area sensor status signal is not in an alarm state, the identity recognition signal is verified. If the face recognition terminal or card reader authenticates successfully, the verification result is "verification passed". If the face recognition terminal or card reader fails to authenticate, the verification result is "verification failed".

10. The control method for a mine explosion-proof and intrinsically safe interlocking access control device according to claim 9, wherein the generated instruction category in step S3 is: If the verification result is successful, the generated instruction is to open the access control. If the verification result is that the verification fails, the generated instruction is to keep the access control closed.

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