Working face wireless near field communication control method based on UWB positioning identification technology

Abstract

The invention discloses a working face wireless near field communication control method based on a UWB positioning identification technology, and belongs to the technical field of coal mine automation control. Through identification card information collection and distribution, the UWB positioning device collects identification card information of working face personnel; region calibration: the UWB positioning acquisition device is connected with the data processing and analysis system to generate accurate position information, and the protection range is input according to the control terminal to be calibrated as a safe region and a dangerous region of working face personnel operation; and S3, processing and execution of the data processing and analysis system: when the working face personnel move, the safety area moves along with the movement of the working face personnel, and when the dangerous area is contacted, an alarm is given, and the working face personnel and the control terminal are informed bidirectionally. The invention provides a working face wireless near-field communication control method based on a UWB positioning identification technology, which can realize non-contact near-field communication of personnel approaching equipment in a coal mine area, including working face personnel safety, and can detect the operation condition of the equipment in a non-contact manner.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine automation control, and more specifically, to a working face wireless near-field communication control method based on UWB positioning and recognition technology. Background Art

[0002] When construction is carried out in dangerous areas (such as underground coal mining), personnel management is required. The most commonly used technology is UWB wireless positioning technology. UWB wireless positioning technology is a wireless carrier communication technology with a frequency bandwidth of more than 1GHz. It pre-assigns identification to construction personnel for input information, divides safe construction areas and dangerous areas, and locates the construction personnel's location information in real time when they enter the designated construction area. When they enter the dangerous area, they are notified to return.

[0003] The control of information on the safety of working face personnel and the surrounding environment during coal mining is a key task in the advancement of intelligentization, especially in fully mechanized mining working faces. It not only provides accurate personnel location information and safety protection for the working face system, but also pushes working face equipment information, and realizes contactless near-field communication control of working face personnel and equipment.

[0004] However, in the current implementation, a fixed safety area is divided, and a warning is issued when the safety area is breached. This UWB wireless positioning is not suitable for underground coal mining. During underground coal mining, when a fixed safety area is divided, it is easy to include some equipment that affects the safety of construction workers in it. When personnel are active in the so-called "safe area", there are still safety hazards. Therefore, it is necessary to set up a fixed, small-scale safety area centered on construction personnel, and then divide the boundaries of the safety area in the construction area. Once the boundary is breached, it is a dangerous area. As for the equipment in the area, a fixed equipment placement area is set. When personnel approach, the equipment is shut down to ensure the safety of personnel. Summary of the invention

[0005] In order to overcome the technical problems raised in the above background, the present invention provides a working face wireless near-field communication control method based on UWB positioning and identification technology, so as to meet the needs of target identification and positioning of working face workers by utilizing positioning and identification technology, judge whether the working face workers are in a safe area and whether they are too close to dangerous equipment, ensure the personal safety of working face workers, and meet the needs of reliable and high-safety automated mining; at the same time, a working face contactless wireless near-field communication control function is introduced to facilitate staff to record equipment operation status.

[0006] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0007] A working surface wireless near-field communication control method based on UWB positioning and recognition technology comprises the following steps:

[0008] S1: Identification card information collection and distribution. The UWB positioning device collects the identification card information of the personnel on the working surface, uploads the information to the data processing and analysis system after input, and distributes the card to the corresponding personnel on the working surface. When the personnel enter the working surface, the data processing and analysis system parses and generates the information of the personnel on the working surface according to the interface protocol content;

[0009] S2: Area calibration: The UWB positioning acquisition device is connected to the data processing and analysis system to generate accurate location information. The protection range is input from the control terminal to calibrate the safe area and dangerous area for the working face personnel, and the equipment layout area is set for the working equipment.

[0010] S3: Processing and execution of the data processing and analysis system. When the personnel on the working face move, the safety area moves with the personnel on the working face as the center. When the safety area and the dangerous area overlap, a warning is issued and the personnel on the working face and the control terminal are notified in both directions.

[0011] When personnel on the working face move and there is an overlap between the safety area and the equipment layout area, the control terminal shuts down the working equipment;

[0012] Work surface personnel can push equipment operating condition information to the data processing and analysis system through the wireless communication system arranged on the work surface. As the work surface personnel move, the control terminal automatically receives the equipment operation information pushed by the system.

[0013] Preferably, the data processing and analysis system in step S1 generates information about personnel at the work surface according to the interface protocol content analysis, including but not limited to personnel location information, personnel code information, and personnel quantity information at the work surface.

[0014] Preferably, the data processing and analysis system includes a base station data processing system and a work surface intelligent terminal information push system.

[0015] Preferably, the control terminal in step S2 and step S3 is an HMI handheld intelligent terminal.

[0016] Preferably, the working equipment in step S2 and step S3 includes but is not limited to hydraulic supports and automatic locking coal mining machines.

[0017] Preferably, when the safe area and the dangerous area have overlapping areas in step S3, the warning is issued in one or more of light, sound or vibration.

[0018] Preferably, when the working surface is not a single layer, when the data processing and analysis system determines the position of the personnel on the working surface, the X, Y, and Z coordinate axes are set with the personnel on the working surface as the center, and when moving in the Z-axis direction, a danger zone warning can also be triggered.

[0019] Preferably, the wireless communication system in step S3 is one of WIFI communication, 4G or 5G.

[0020] The present invention also provides a working face wireless near-field communication control system based on UWB positioning and identification technology, which executes any of the above wireless near-field communication control methods, including a working face computing host, a WiFi base station, a UWB positioning base station, an intelligent terminal, a working face hydraulic support and a coal mining machine, wherein:

[0021] The working face computing power host carries and executes the data processing and analysis system. The UWB positioning base station is connected to the intelligent terminal and the working face computing power host through the WiFi base station. The control units of the working face hydraulic support and coal mining machine are connected to the intelligent terminal and the working face computing power host through the WiFi base station.

[0022] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0023] 1. This working face personnel positioning method based on personnel positioning and identification technology generates personnel location information through system analysis, divides the working face area, and thus determines the safe working range and dangerous working range of the working face workers. When the workers are in the dangerous area, the conveyor and hydraulic support are locked, and the coal mining machine is stopped for traction protection, which greatly improves the working safety of the working face and ensures the personal safety of the working face workers.

[0024] 2. The wireless near-field communication method introduced can automatically lock the system when personnel are walking on the working surface, forming a protection area around pedestrians. With the help of the working surface WiFi system, the operating condition information of the equipment around the personnel can be pushed in real time, realizing wireless near-field communication of the equipment, improving the safety factor, and enhancing further perception of information.

[0025] 3. When personnel walk on the working surface and contact the equipment installation area through the safety area, the operation status of the equipment can also be judged by disconnecting the equipment. The equipment operation status can be recorded and sent to the control terminal through the WiFi system through contactless communication to improve the inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 is a relationship diagram of the analysis and processing platform of the present invention;

[0028] Figure 2 A schematic diagram of the business workflow of the analysis platform of the present invention;

[0029] Explanation of the markings in the figure: 1. Hydraulic support of the working face; 2. Computing power host of the working face; 3. WiFi base station; 4. UWB positioning base station; 5. Coal mining machine; 6. Transport machine. DETAILED DESCRIPTION

[0030] In order to better understand the purpose, structure and function of the present invention, the technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0031] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not indicate the importance of the parts, and therefore cannot be understood as a limitation on the present invention. The specific dimensions used in the embodiments are only for illustrating the technical solution and do not limit the scope of protection of the present invention. It is understandable to those skilled in the art that some well-known structures and their descriptions in the drawings may be omitted.

[0032] Unless otherwise clearly specified and limited, the terms "install", "set", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] See also Figure 2 The present invention provides a working surface wireless near-field communication control method based on UWB positioning and recognition technology, the steps are as follows:

[0034] S1: Collection and distribution of identification card information. The UWB positioning device collects the identification card information of the personnel on the work surface. After entering the information, it uploads it to the data processing and analysis system and distributes the card to the corresponding personnel on the work surface. When the personnel enter the work surface, the data processing and analysis system parses and generates the information of the personnel on the work surface according to the content of the interface protocol.

[0035] More specifically, the data processing and analysis system includes a base station data processing system and a work surface intelligent terminal information push system. The base station data processing system and the work surface intelligent terminal information push system are respectively used to receive and process the information generated by the UWB positioning device, and push the processed information to the control terminal.

[0036] More specifically, the data processing and analysis system parses the interface protocol content to generate information about personnel at the work surface, including but not limited to personnel location information, personnel code information, and personnel quantity information at the work surface.

[0037] Of course, in some areas, non-construction personnel are not allowed to intrude. Therefore, in this scenario, a monitoring and identification system can be added to compare the number of personnel recorded by the UWB positioning device with the number of personnel monitored by the monitoring and identification system. If they are the same, no alarm will be given. If they are different, it is judged that someone has illegally intruded, and construction needs to be suspended and the relevant personnel need to be expelled.

[0038] S2: Area calibration: The UWB positioning acquisition device is connected to the data processing and analysis system to generate accurate location information. The protection range is input from the control terminal and calibrated as the safe area and dangerous area for the working face personnel, and the equipment layout area is set for the working equipment.

[0039] In step S2, the danger zone is divided into two types. One is a larger area, such as a circle of a climbing frame, which is pushed inward 30-50cm from the boundary line of the climbing frame. The boundary line after each side is pushed in is the edge of the danger zone. When the construction workers touch or directly enter, they enter the danger zone. The second type is the first danger zone, which is divided into multiple small-scale danger zones according to various dangerous equipment units. When the working face personnel enter a small-scale danger zone, it is determined that they have entered the equipment danger zone.

[0040] In step S2, a coordinate system can be established for the two types of dangerous areas and the safe area. For example, any two adjacent boundary lines of a large dangerous area are used as the coordinate system. The coordinate system includes X and Y axes. In this coordinate system, the equipment layout area is equivalent to a fixed "point" in the coordinate system, and the staff is a moving "point". The two "points" here are not points in the conventional sense, but have ranges.

[0041] S3: Processing and execution of the data processing and analysis system. When the personnel on the working face move, the safe area moves with the movement of the personnel. When there is an overlap between the safe area and the dangerous area, a warning is issued and the personnel on the working face and the control terminal are notified in both directions.

[0042] When the personnel on the working face move, if there is an overlapping area between the safety area and the equipment layout area with the personnel on the working face as the center, the control terminal shuts down the working equipment;

[0043] Work surface personnel can push equipment operating condition information to the data processing and analysis system through the wireless communication system arranged on the work surface. As the work surface personnel move, the control terminal automatically receives the equipment operation information pushed by the system.

[0044] In step S3, when personnel on the working surface move, a range can be set. For example, with the staff as the center, the horizontal radius of 2 meters is the safe distance. Then the safety range is a circle with the staff as the center and a radius of 2 meters on the horizontal plane. When any direction of this circle enters the danger zone, a warning will be issued. When entering the danger zone of the equipment, the equipment will be shut down to ensure the safety of personnel.

[0045] At the same time, when personnel move on the working face and enter the equipment layout area, the UWB positioning device sends information to the base station data processing system. After the information is processed, it is sent to the control terminal by the working face intelligent terminal information push system, and the control equipment is turned off. The staff can check and record the equipment operation status along the way.

[0046] More specifically, the control terminal in step S2 and step S3 is an HMI handheld intelligent terminal.

[0047] More specifically, the working equipment in step S2 and step S3 includes but is not limited to hydraulic supports, automatic locking coal mining machines and conveyors.

[0048] More specifically, when the safe area and the dangerous area overlap in step S3, the warning is issued in one or more of light, sound or vibration.

[0049] In some embodiments, when the working surface is not a single layer, when the data processing and analysis system determines the position of the personnel on the working surface, the X, Y, and Z coordinate axes are set with the personnel on the working surface as the center. When moving in the Z-axis direction, a danger zone warning can also be triggered. At this time, the large danger zone should include a space of height, and the safe area is based on a single-layer working surface, and includes a moving range above and below the center point of the staff. This embodiment requires the construction of UWB positioning devices on multiple layers of working surfaces.

[0050] More specifically, the wireless communication system in step S3 is one of WIFI communication, 4G or 5G.

[0051] like Figure 1 As shown, the present invention also provides a working face wireless near-field communication control system based on UWB positioning and identification technology, including a working face computing host 2, a WiFi base station 3, a UWB positioning base station 4, an intelligent terminal 7, a working face hydraulic support 1, a coal mining machine 5 and a conveyor 6, wherein:

[0052] The working face computing power host 2 carries and executes the data processing and analysis system. The UWB positioning base station 4 is connected to the intelligent terminal 7 and the working face computing power host 2 through the WiFi base station 3. The control units of the working face hydraulic support 1 and the coal mining machine 5 are connected to the intelligent terminal 7 and the working face computing power host 2 through the WiFi base station 3.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A working surface wireless near-field communication control method based on UWB positioning and recognition technology, characterized in that: The steps include: S1: Identification card information collection and distribution. The UWB positioning device collects the identification card information of the personnel on the working surface, uploads the information to the data processing and analysis system after input, and distributes the card to the corresponding personnel on the working surface. When the personnel enter the working surface, the data processing and analysis system parses and generates the information of the personnel on the working surface according to the interface protocol content; S2: Area calibration: The UWB positioning acquisition device is connected to the data processing and analysis system to generate accurate location information. The protection range is input from the control terminal to calibrate the safe area and dangerous area for the working face personnel, and the equipment layout area is set for the working equipment. S3: Processing and execution of the data processing and analysis system. When the personnel on the working face move, the safety area moves with the personnel on the working face as the center. When the safety area and the dangerous area overlap, a warning is issued and the personnel on the working face and the control terminal are notified in both directions. When personnel on the working face move and there is an overlap between the safety area and the equipment layout area, the control terminal shuts down the working equipment; Work surface personnel can push equipment operating condition information to the data processing and analysis system through the wireless communication system arranged on the work surface. As the work surface personnel move, the control terminal automatically receives the equipment operation information pushed by the system.

2. The working surface wireless near-field communication control method based on UWB positioning and recognition technology according to claim 1 is characterized in that: The data processing and analysis system in step S1 generates information about personnel at the work surface according to the interface protocol content analysis, including but not limited to the position information of personnel at the work surface, personnel code information, and personnel quantity information.

3. The working surface wireless near field communication control method based on UWB positioning and recognition technology according to claim 1 is characterized in that: The data processing and analysis system includes a base station data processing system and a work surface intelligent terminal information push system.

4. The working surface wireless near field communication control method based on UWB positioning and recognition technology according to claim 1 is characterized in that: The control terminal in step S2 and step S3 is an HMI handheld intelligent terminal.

5. The working surface wireless near-field communication control method based on UWB positioning and recognition technology according to claim 1 is characterized in that: The working equipment in step S2 and step S3 includes but is not limited to hydraulic supports, automatic locking coal mining machines and conveyors.

6. The working surface wireless near field communication control method based on UWB positioning and recognition technology according to claim 1 is characterized in that: When the safe area and the dangerous area overlap in step S3, the warning is issued in one or more of light, sound or vibration.

7. The working surface wireless near field communication control method based on UWB positioning and recognition technology according to claim 1 is characterized in that: When the working surface is not a single level, the data processing and analysis system determines the position of the personnel on the working surface and sets the X, Y, and Z coordinate axes with the personnel on the working surface as the center. When moving in the Z-axis direction, a danger zone warning can also be triggered.

8. The working surface wireless near field communication control method based on UWB positioning and recognition technology according to claim 1 is characterized in that: The wireless communication system in step S3 is one of WIFI communication, 4G or 5G.

9. A working surface wireless near-field communication control system based on UWB positioning and identification technology, executing the working surface wireless near-field communication control method based on UWB positioning and identification technology as described in any one of claims 1 to 7, characterized in that: It includes working face computing host, WiFi base station, UWB positioning base station, intelligent terminal, working face hydraulic support, coal mining machine and transport machine, among which: The working face computing power host carries and executes the data processing and analysis system. The UWB positioning base station is connected to the intelligent terminal and the working face computing power host through the WiFi base station. The control units of the working face hydraulic support and coal mining machine are connected to the intelligent terminal and the working face computing power host through the WiFi base station.

Images