Electromagnetic starter device and control method of electromagnetic starter device

Abstract

The invention provides an electromagnetic starter device and a control method of the electromagnetic starter device. The electromagnetic starter device comprises: an electromagnetic starter; the display screen is used for displaying related data in the operation process of the electromagnetic starter; the control keys are located on the surface of the electromagnetic starter, and the control keys are at least used for controlling display of the display screen; the explosion-proof shell is provided with a transparent part and an opening part, the display screen is located in a cavity of the explosion-proof shell and located on one side of the transparent part, and the control key penetrates through the opening part. According to the scheme, the problems that in the prior art, an electromagnetic starter is externally connected with a wireless mouse or a keyboard to operate a display screen, space is limited, and operation is inconvenient are solved.

Description

Technical Field

[0001] The present application relates to the technical field of electromagnetic starter display and control, and in particular to an electromagnetic starter device, a control method for an electromagnetic starter device, a controller for an electromagnetic starter device, and an electromagnetic starter system. Background Art

[0002] As the requirements for intelligent coal mine construction continue to increase, various mine comprehensive protection systems are widely used in coal mine power supply trunk lines, branch lines, mobile substations, motors, crushers, underground lighting systems, etc., mainly electromagnetic starters, which are roughly composed of comprehensive protectors and vacuum AC contactors.

[0003] To facilitate system parameter settings and provide a more intuitive understanding of system operation, a touch screen is often used as the display and control device for electromagnetic starters. However, mine electromagnetic starters generally have explosion-proof housings, and the touch screen is installed in the explosion-proof housing, which cannot be directly operated by touch. It often requires a dedicated wireless mouse or matrix key interface board (keyboard). Due to the limited space underground, indirect operation through a wireless mouse or matrix key interface board will further reduce space and inconvenience. Summary of the Invention

[0004] The main purpose of the present application is to provide an electromagnetic starter device, a control method for an electromagnetic starter device, a controller for an electromagnetic starter device, and an electromagnetic starter system, so as to at least solve the problem in the prior art of operating a display screen with an external wireless mouse or keyboard connected to the electromagnetic starter, which results in limited space and inconvenient operation.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, an electromagnetic starter device is provided, comprising: an electromagnetic starter; a display screen for displaying relevant data during the operation of the electromagnetic starter; at least one control key located on the surface of the electromagnetic starter, the control key being at least used to control the display of the display screen; an explosion-proof shell, the explosion-proof shell having a transparent portion and an opening portion, the display screen being located in the cavity of the explosion-proof shell and on one side of the transparent portion, and the control key passing through the opening portion.

[0006] Optionally, the electromagnetic starter device includes: a camera located on the outer surface of the explosion-proof housing, the camera being used to capture video; a microphone located on the outer surface of the explosion-proof housing, the microphone being used to capture sound; and a vibrator integrated in the control key, the vibrator being used to vibrate when the control key is pressed.

[0007] Optionally, the multiple control keys include: a first control key, having a first position and a second position, the first position is used to switch the pages of the display screen or switch the input box of the display screen, and the second position is a reset position; a second control key, having a third position and a fourth position, the third position is used to adjust the data of the input box, and the fourth position is a reset position; a third control key, having a fifth position and a sixth position, the fifth position is used to confirm, and the sixth position is a reset position; a fourth control key, having a seventh position and an eighth position, the seventh position is used to cancel, and the eighth position is a reset position; a fifth control key, having a ninth position and a tenth position, the ninth position is used to control the opening and closing of the camera, and the tenth position is a reset position; a sixth control key, having an eleventh position and a twelfth position, the eleventh position is used to control the opening and closing of the microphone, and the twelfth position is a reset position.

[0008] According to another aspect of the present application, a control method for any one of the electromagnetic starter devices is provided, the method comprising: obtaining a position of a control key; and adjusting display content of a display screen at least according to the position of the control key.

[0009] Optionally, the plurality of control keys include a first control key, a second control key, a third control key and a fourth control key, the first control key having a first position and a second position, the first position being used to switch pages of the display screen or switch input boxes of the display screen, the second position being a reset position, the second control key having a third position and a fourth position, the third position being used to adjust data of the input box, the fourth position being a reset position, the third control key having a fifth position and a sixth position, the fifth position being used to confirm, the sixth position being a reset position, the fourth control key having a seventh position and an eighth position, the seventh position being used to cancel, the eighth position being a reset position, and adjusting the display content of the display screen at least according to the positions of the control keys, including one of the following: displaying the N+1th page when the current display page of the display screen is the Nth page, the page number of the current display page is less than the maximum page number, the position of the first control key being the first position, and the position of the third control key being the fifth position, wherein N≥1; displaying the N+1th page when the current display page of the display screen is the Nth page, the page number of the current display page is equal to the maximum page number, If the number, the position of the first control key is the first position, and the position of the third control key is the fifth position are all satisfied, the first page is displayed; if the currently selected input box on the display screen is the Mth input box, the box number of the currently selected input box is less than the maximum box number, and the position of the first control key is the first position, the M+1th input box is displayed, where M≥1; if the currently selected input box on the display screen is the Mth input box, the box number of the currently selected input box is equal to the maximum box number, and the position of the first control key is the first position, When the position of the second control key is the third position, the first input box is displayed as selected; when the position of the second control key is the third position, the parameter displayed in the selected input box is adjusted with the target step length, wherein the target step length is a preset fixed step length; when the position of the third control key is the fifth position, the adjusted parameter of the input box is determined as the target parameter, and the target parameter is displayed in the input box; when the position of the fourth control key is the seventh position, the parameter of the input box before adjustment is determined as the target parameter, and the target parameter is displayed in the input box.

[0010] Optionally, the electromagnetic starter device further includes a camera and a fifth control key, the camera is located on the outer surface of the explosion-proof housing, the camera is used to capture video, the fifth control key has a ninth position and a tenth position, the ninth position is used to control the opening and closing of the camera, the tenth position is a reset position, and at least according to the position of the control key, the display content of the display screen is adjusted, including: when the position of the fifth control key is the ninth position and the position of the third control key is the fifth position, turning on the camera; acquiring the video captured by the camera; extracting the target object in the video according to the target detection technology; based on According to gesture recognition technology, the gesture action of the target object is identified, wherein the gesture action is one of sliding, clicking, and making a fist; a first mapping relationship is obtained, wherein the first mapping relationship is the relationship between the gesture action and the operation instruction, and the operation instruction is one of cursor movement, confirmation, cancellation, and numerical adjustment; according to the first mapping relationship, the operation instruction corresponding to the gesture action of the target object is determined as the target operation instruction, and the display content of the display screen is adjusted based on the target operation instruction; when the position of the fifth control key is the ninth position and the position of the fourth control key is the seventh position, the camera is turned off.

[0011] Optionally, the electromagnetic starter device further includes a microphone and a sixth control key, the microphone is located on the outer surface of the explosion-proof housing, the microphone is used to collect sound, the sixth control key has an eleventh position and a twelfth position, the eleventh position is used to control the opening and closing of the microphone, the twelfth position is a reset position, and at least according to the position of the control key, the display content of the display screen is adjusted, including: when the position of the sixth control key is the eleventh position and the position of the third control key is the fifth position, turning on the microphone; obtaining the sound information collected by the microphone and converting the sound information into text information; and processing the text information. The method comprises the following steps: performing semantic recognition on the information to obtain semantic information, wherein the semantic information is one of turning pages, increasing values, decreasing values, confirming settings, and canceling settings; obtaining a second mapping relationship, wherein the second mapping relationship is a relationship between the semantic information and an operation instruction, and the operation instruction is one of moving a cursor, confirming, canceling, and adjusting values; determining the operation instruction corresponding to the semantic information as a target operation instruction according to the second mapping relationship, and adjusting the display content of the display screen based on the target operation instruction; and turning off the microphone when the position of the sixth control key is the eleventh position and the position of the fourth control key is the seventh position.

[0012] Optionally, the electromagnetic starter device further includes a vibrator, a fifth control key and a sixth control key, the vibrator being integrated in the control key, the vibrator being used to vibrate when the control key is pressed, the fifth control key having a ninth position and a tenth position, the ninth position being used to control the opening and closing of the camera, the tenth position being a reset position, the sixth control key having an eleventh position and a twelfth position, the eleventh position being used to control the opening and closing of the microphone, the twelfth position being a reset position, and after obtaining the position of the control key, the method further includes: when the position of the first control key is the first position, controlling the vibrator integrated in the first control key to vibrate at a first frequency; when the position of the second control key is the first position, controlling the vibrator integrated in the first control key to vibrate at a first frequency When the position of the fifth control key is the ninth position, the vibrator integrated in the fifth control key is controlled to vibrate at the first frequency; when the position of the sixth control key is the eleventh position, the vibrator integrated in the sixth control key is controlled to vibrate at the first frequency; when the position of the third control key is the fifth position, the vibrator integrated in the third control key is controlled to vibrate at a second frequency, wherein the second frequency is greater than the first frequency; when the position of the fourth control key is the seventh position, the vibrator integrated in the fourth control key is controlled to vibrate at the second frequency.

[0013] According to another aspect of the present application, a controller of any one of the electromagnetic starter devices is provided, the controller comprising: an acquisition unit for acquiring the position of a control key; and an adjustment unit for adjusting the display content of a display screen at least according to the position of the control key.

[0014] According to another aspect of the present application, an electromagnetic starter system is provided, which includes: an electromagnetic starter device, which is any one of the electromagnetic starter devices described; a controller, which is communicatively connected to the electromagnetic starter device and is used to execute any one of the control methods of the electromagnetic starter device described.

[0015] By applying the technical solution of the present application, control keys are directly set on the electromagnetic starter to operate the display screen. No additional peripheral devices (such as a wireless mouse and keyboard) are required to realize the operation and control of the touch screen, thereby reducing the space occupied by the equipment and allowing the operator to operate the display screen through simple control key operations in a limited space, which is more convenient than the existing operation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0017] Figure 1 A hardware structure block diagram of a mobile terminal for executing a control method for an electromagnetic starter device provided in an embodiment of the present application is shown;

[0018] Figure 2 A schematic flow chart of a control method for an electromagnetic starter device according to an embodiment of the present application is shown;

[0019] Figure 3 Shows a schematic diagram of the PLC control process;

[0020] Figure 4 A schematic diagram showing the control steps of the scheme;

[0021] Figure 5 A schematic diagram showing an input box selection is shown;

[0022] Figure 6 A schematic diagram showing symbols displayed on the right side of the input box is shown;

[0023] Figure 7 A structural block diagram of a control device for an electromagnetic starter device provided according to an embodiment of the present application is shown;

[0024] Figure 8 A schematic diagram showing a partial structure of an electromagnetic starter system.

[0025] The above drawings include the following reference numerals:

[0026] 102. Processor; 104. Memory; 106. Transmission equipment; 108. Input / output equipment; 10. Electromagnetic starter; 11. Display screen; 12. Control keys; 13. Controller; 14. I / O interface for comprehensive protection of switch; 15. Current transformer; 16. RS485 interface for comprehensive protection of switch; 17. Vacuum contactor; 18. Electromagnetic starter movement; 19. Isolating reversing switch; 20. Power input interface; 21. Transformer; 22. Load output interface; 23. Distribution line; 24. External load. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] As introduced in the background technology, in the prior art, an electromagnetic starter is connected to an external wireless mouse or keyboard to operate a display screen, which results in space constraints and inconvenience in operation. To solve the above problems, the embodiments of the present application provide an electromagnetic starter device, a control method for an electromagnetic starter device, a controller for an electromagnetic starter device, and an electromagnetic starter system.

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] The present application provides an electromagnetic starter device, comprising:

[0033] electromagnetic starter;

[0034] A display screen, used to display relevant data during the operation of the electromagnetic starter;

[0035] At least one control key located on the surface of the electromagnetic actuator, the control key being used to at least control the display of the display screen;

[0036] The explosion-proof shell has a transparent portion and an opening portion. The display screen is located in the cavity of the explosion-proof shell and on one side of the transparent portion. The control key passes through the opening portion.

[0037] Electromagnetic starters used in mines generally have explosion-proof casings. The touch screen is installed in the explosion-proof casing and cannot be directly touched. It often needs to be used with a dedicated wireless mouse or keyboard. However, the underground space is limited, and the operation of external devices will lead to space shortage and inconvenience in operation. In this solution, control keys are directly set on the electromagnetic starter to operate the display screen. There is no need to add other peripheral devices (such as wireless mouse and keyboard) to realize the operation and control of the touch screen, which reduces the space occupied by the equipment and allows operators to operate the display screen through simple control key operations in a limited space, which is more convenient than the existing operation method.

[0038] The electromagnetic starter is the core component of the entire device, responsible for controlling the motor's starting, stopping, and protection functions. It consists of an electromagnetic mechanism, a vacuum contactor, and other necessary electrical components to meet the high reliability requirements of mine environments. The use of a specially designed electromagnetic starter ensures stable operation in the harsh underground environment, avoiding the safety hazards associated with electrical failures within the explosion-proof enclosure of conventional starters.

[0039] The display is the primary means for operators to obtain status information about the electromagnetic starter. It not only displays operating parameters such as current, voltage, and temperature, but also displays alarms when an anomaly occurs, helping operators to promptly understand the equipment's status. The integration of the display significantly enhances operators' ability to monitor the electromagnetic starter's operating status in real time. This intuitive data display reduces the risk of misjudgment or delayed response, thereby improving the safety and efficiency of overall mine operations.

[0040] The control keys allow operators to control the display screen, such as switching pages and adjusting parameters, without opening the explosion-proof enclosure, using a limited number of physical buttons. This greatly simplifies the operation process. The introduction of control keys significantly reduces the complexity of operator interaction with the display and control device. Even within the limitations of the explosion-proof enclosure, flexible control of the electromagnetic starter is possible, improving the device's usability and operational efficiency.

[0041] The use of explosion-proof enclosures is driven by the safety requirements of mine environments. Their design must prevent internal sparks from igniting explosive gases while also ensuring visual access to the display and physical operation of control keys. The explosion-proof enclosure not only physically protects the electromagnetic starter and prevents damage to the equipment from the external environment, but also, through its special transparent and open design, allows operators to monitor and operate the equipment without compromising explosion-proof performance. This ensures safety while improving maintenance convenience and user experience.

[0042] Specifically, the control key may be a button or a joystick.

[0043] During the specific implementation process, the above-mentioned electromagnetic starter device includes a camera, a microphone and a vibrator. The camera is located on the outer surface of the above-mentioned explosion-proof shell, and the above-mentioned camera is used to collect video; the microphone is located on the outer surface of the above-mentioned explosion-proof shell, and the above-mentioned microphone is used to collect sound; the vibrator is integrated in the above-mentioned control key, and the above-mentioned vibrator is used to vibrate when the above-mentioned control key is pressed.

[0044] In this solution, the area where the electromagnetic starter device is located can be monitored in all directions through cameras and microphones, and tactile feedback can be provided to operators by integrating a vibrator into the control key.

[0045] The installation of the above-mentioned cameras allows real-time monitoring of the working status of the electromagnetic starter device and its surrounding environment, providing an additional means of safety monitoring, especially in unmanned or remote operation environments.

[0046] The above-mentioned microphone is designed to capture the sound of equipment operation, including abnormal noise, alarm sound, etc., providing a basis for sound monitoring and fault diagnosis.

[0047] The vibrator integrated into the above-mentioned control keys provides users with physical feedback during operation, improving the sense of operation confirmation, especially in noisy environments where users may not be able to clearly hear the operation prompt sound.

[0048] Enhanced safety and monitoring capabilities: By integrating the aforementioned camera and microphone into the electromagnetic starter device, comprehensive monitoring of the equipment's operating status and environment is achieved, reducing safety incidents caused by the inability to promptly detect potential faults or abnormal conditions.

[0049] The vibrator integrated in the above-mentioned control keys provides the operator with clear operational feedback, especially when operating inside an explosion-proof enclosure, where there is a lack of tactile feedback. The vibration feedback significantly enhances the sense of operation confirmation and reduces the possibility of incorrect operation.

[0050] Combined with the PLC's control logic, data collected by cameras and microphones can be analyzed in real time. If an abnormality (such as smoke, flames, or unusual noise) is detected that deviates from normal operation, the PLC immediately triggers an alarm and displays an emergency message on the display, informing the operator of the specific problem and possible solutions. For example, if the camera detects an internal temperature exceeding 60°C, or the microphone detects unusual sounds of internal pressure fluctuations, the system automatically enters emergency mode, reducing the possibility of an accident.

[0051] When the operator presses a control key, the vibrator responds immediately, providing brief vibration feedback to inform the operator that the key has been recognized and processed. This mechanism is particularly important in the soundproof environment provided by the explosion-proof housing of the electromagnetic actuator device, ensuring that the operator can tactilely confirm the validity of the operation even when no sound is heard.

[0052] In some embodiments, the multiple control keys include a first control key, a second control key, a third control key, a fourth control key, a fifth control key and a sixth control key, the first control key having a first position and a second position, the first position being used to switch pages of the display screen or switch input boxes of the display screen, and the second position being a reset position; the second control key having a third position and a fourth position, the third position being used to adjust data of the input box, and the fourth position being a reset position; the third control key having a fifth position and a sixth position, the fifth position being used to confirm, and the sixth position being a reset position; the fourth control key having a seventh position and an eighth position, the seventh position being used to cancel, and the eighth position being a reset position; the fifth control key having a ninth position and a tenth position, the ninth position being used to control the opening and closing of the camera, and the tenth position being a reset position; the sixth control key having an eleventh position and a twelfth position, the eleventh position being used to control the opening and closing of the microphone, and the twelfth position being a reset position.

[0053] In this solution, the design of the above-mentioned control keys allows the operator to control the display screen through direct physical operations, and can also control the start and stop of the camera and microphone. In long-term operating mines, this operation method is more convenient than adding peripheral devices.

[0054] The first control key is designed with two positions. By pressing it to the first position, the operator can instruct the PLC to switch pages or input boxes. When it is released back to the second position, i.e., the reset position, the operation instruction is completed.

[0055] The second control button also has two positions. The third position is for adjusting data (increasing or decreasing values); returning to the fourth position completes the operation. This design eliminates the need for additional equipment and allows for data adjustment with a single physical button, saving space and cost.

[0056] The third control button is for confirmation, and the fourth control button is for cancellation. Each has an active position and a reset position. This design ensures the clarity and reversibility of operating instructions, improves operational accuracy, and reduces the risk of incorrect operation.

[0057] The fifth control button is used to turn the camera on and off. The ninth position is for on, and the tenth position is for off. This feature allows the operator to enable or disable video surveillance at any time as needed.

[0058] The sixth control button is similar to the fifth control button. The eleventh position turns the microphone on, and the twelfth position turns the microphone off. This design ensures the controllability of audio monitoring.

[0059] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 FIG. 1 is a hardware structure block diagram of a mobile terminal for a control method of an electromagnetic starter device according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown) a processor 102 (the processor 102 may include but is not limited to a microprocessor MCU or a programmable logic device FPGA and other processing devices) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input and output device 108 for communication functions. It will be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components than shown, or with Figure 1 Different configurations shown.

[0060] The memory 104 can be used to store computer programs, such as software programs and modules of application software, such as the computer program corresponding to the device information display method in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, implementing the above-mentioned method. The memory 104 may include a high-speed random access memory and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely located relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the above-mentioned networks include but are not limited to the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof. The transmission device 106 is used to receive or send data via a network. Specific examples of the above-mentioned network may include a wireless network provided by the mobile terminal's communication provider. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, abbreviated as NIC), which can be connected to other network devices via a base station to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0061] In this embodiment, a control method for an electromagnetic starter device running on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0062] Figure 2 FIG. 1 is a flow chart of a control method of an electromagnetic starter device according to an embodiment of the present application. Figure 2 As shown, the method includes the following steps:

[0063] Step S201, obtaining the position of the control key;

[0064] Specifically, by identifying whether the control key is operated and the specific operation method (such as pressing, releasing, long pressing, etc.), the current position of the control key is obtained.

[0065] Step S202: Adjust the display content of the display screen at least according to the position of the control key.

[0066] Specifically, according to the position changes of the control keys, the operator's intentions are analyzed, such as page switching, data adjustment, confirmation or cancellation of operations, etc., and these instructions are converted into display instructions of the display screen, which are sent to the display screen in real time via Ethernet or other communication methods, so that the display screen updates its display content according to the received instructions.

[0067] Through this embodiment, when the control key is pressed or reset, the position of the control key will change. By obtaining the position of the control key, the specific operation instruction can be parsed, and then the display screen can be controlled based on the operation instruction without the need for operation through a mouse and keyboard, which is more convenient to operate.

[0068] Specifically, the above steps can be executed based on the PLC control program, mainly including the following steps: 1) PLC obtains the button input status; 2) PLC parses the button logic operation to be executed; 3) PLC executes the corresponding logic processing; 4) The touch screen reads the latest data required by the background task strategy and runs the background task strategy in a loop; 5) The touch screen executes the control action.

[0069] Specifically, the door panel button of the mine electromagnetic starter, combined with a PLC and a touch screen, enables touchscreen display and operation control without the need for additional devices. The mine electromagnetic starter's display screen is located within the explosion-proof chamber, but it provides both display and input functions. By leveraging the PLC's powerful communication and programmable logic control capabilities, and the touch screen's controls and scripting capabilities, it achieves excellent human-computer interaction and display effects.

[0070] In the specific implementation process, the multiple control keys include a first control key, a second control key, a third control key and a fourth control key. The first control key has a first position and a second position. The first position is used to switch the page of the display screen or the input box of the display screen. The second position is the reset position. The second control key has a third position and a fourth position. The third position is used to adjust the data of the input box. The fourth position is the reset position. The third control key has a fifth position and a sixth position. The fifth position is used to confirm. The sixth position is the reset position. The fourth control key has a There are a seventh position and an eighth position, the seventh position is used to cancel, and the eighth position is a reset position. At least according to the position of the control key, adjusting the display content of the display screen can be achieved by at least one of the following steps: when the current display page of the display screen is the Nth page, the page number of the current display page is less than the maximum page number, the position of the first control key is the first position, and the position of the third control key is the fifth position, displaying the N+1th page, where N≥1; when the current display page of the display screen is the Nth page, the page number of the current display page, etc. If the above-mentioned maximum page number, the position of the above-mentioned first control key is the above-mentioned first position, and the above-mentioned position of the above-mentioned third control key is the above-mentioned fifth position are all satisfied, the first page is displayed; if the currently selected input box on the above-mentioned display screen is the Mth input box, the box number of the above-mentioned currently selected input box is less than the maximum box number, and the above-mentioned position of the above-mentioned first control key is the above-mentioned first position, the M+1th input box is displayed, where M≥1; if the currently selected input box on the above-mentioned display screen is the Mth input box, the box number of the above-mentioned currently selected input box is equal to the above-mentioned maximum box number, and the above-mentioned position of the above-mentioned first control key is the above-mentioned first position When all settings are satisfied, the first input box is displayed as selected; when the position of the second control key is the third position, the parameter displayed in the selected input box is adjusted with the target step length, wherein the target step length is a preset fixed step length; when the position of the third control key is the fifth position, the adjusted parameter of the input box is determined as the target parameter, and the target parameter is displayed in the input box; when the position of the fourth control key is the seventh position, the parameter of the input box before adjustment is determined as the target parameter, and the target parameter is displayed in the input box.

[0071] In this solution, when the first control key and the third control key are pressed at the same time, the pages can be switched; when the first control key is pressed alone, the selected input box can be switched; when the second control key is pressed, the parameters in the input box can be adjusted; when the third control key is pressed, the operation can be confirmed and saved; when the fourth control key is pressed, the operation can be canceled. Through the above-mentioned operation key control, the display screen can be operated more conveniently.

[0072] When the first control key is pressed to the first position, the PLC interprets this action as a need to switch the current display content, whether it is a page switch or an input box switch. Combined with the third control key being in the fifth position, this allows for page flipping, i.e., flipping from page N to page N+1. When the display is on the last page, pressing the first control key again returns to the homepage, ensuring the continuity of the page flipping cycle.

[0073] When the second control key is placed in the third position, the PLC will recognize that the operation intention is to adjust the parameters of the currently selected input box, and increase or decrease them at a preset target step size (for example, step size = 1A) until a value satisfactory to the operator is reached.

[0074] When the third control key is placed in the fifth position, it indicates that the operator wishes to confirm the parameter adjustment result of the current input box. The PLC will lock the adjusted parameter as the final target parameter and display it on the display screen.

[0075] When the fourth control key is in the seventh position, it means that the operator wishes to cancel the parameter adjustment currently in progress and restore the parameters to the original state. Through this mechanism, the operator can quickly recall the error in the event of an operation, avoiding abnormal equipment operation caused by incorrect parameter settings.

[0076] In one specific application, during routine maintenance of the electromagnetic starter device, operators often need to adjust device parameters, such as rated current settings and undervoltage ratio adjustments. Assuming the operator needs to adjust the undervoltage ratio threshold, they first press the first control key to the first position, causing the display to display a parameter setting interface and select the undervoltage ratio input box. The operator then presses the second control key to the third position and gradually increases the undervoltage ratio value by a target step size (e.g., 1%) until the desired value is reached. Throughout this process, the PLC updates the display screen in real time based on the position of the control keys. When the third control key is in the fifth position, the final undervoltage ratio setting, such as from the original 10% to 20%, is confirmed and displayed on the display screen. If the operator discovers that the value they entered is incorrect during the adjustment process, they can immediately press the fourth control key to the seventh position to cancel the current parameter adjustment and return the undervoltage ratio value to the original 10%. This avoids parameter setting errors and ensures normal operation of the device.

[0077] Specifically, the control key can be a door panel button, and the four door panel buttons are defined as F1, F2, F3, and F4 respectively, where the function of F1 is defined as moving the cursor, the function of F2 is defined as increasing the value, the function of F3 is defined as confirming, the function of F4 is defined as canceling, and F1+F3 are defined as turning pages. The specific function descriptions of the four buttons are shown in Table 1.

[0078] Table 1

[0079]

[0080] In order to realize the control of the touch screen through the PLC, the touch screen and PLC communicate through Ethernet, and read the current window number N1, the current input box number N2, and the current input box activation number N3 in real time. After the button action is analyzed in the overall control logic of the PLC, the three variables of current window number N1, current input box number N2, and current input box activation number N3 need to be updated according to the actual situation so that the background task strategy of the touch screen can read and execute the corresponding action. Assume that the maximum value of the current window number N1 is N max1 , the maximum value of the current input box number N2 is N max2 The following is combined Figure 3 A brief explanation of the button action analysis of the PLC's overall control logic is given.

[0081] ① Page switching action:

[0082] When the current input box number N2 is equal to 0, and the F1 and F3 buttons are detected to be pressed at the same time, the current window number N1 value is accumulated by 1, and the current input box activation number N3 is set to 0. At the same time, it is determined whether the accumulated current window number N1 value is greater than the maximum value N of the current window number N1. max1If yes, set the current window number N1 value to 1, if not, keep it unchanged.

[0083] Specifically, when the first button is pressed and the third button is pressed at the same time, the serial number of the page currently displayed on the display screen is extracted to obtain the page number; it is determined whether the page number is greater than or equal to the maximum page number; when the page number is less than the maximum page number, the current display of the display screen is adjusted from the Nth page to the N+1th page, where N≥1; when the page number is greater than or equal to the maximum page number, the current display of the display screen is adjusted from the Nth page to the 1st page.

[0084] ② Input selection action:

[0085] When the current input box activation number N3 is equal to 0, the F1 button detects a press action, and the F3 button does not detect a press action, then the current input box number N2 value is accumulated by 1. At the same time, it is determined whether the accumulated current input box number N2 value is greater than the maximum value of the current input box number N2 is N max2 , if yes, set the current input box number N2 value to 1, if no, keep it unchanged.

[0086] Specifically, when the first button is pressed, the serial number of the input box selected by the display screen is extracted to obtain the frame number; it is determined whether the frame number is greater than or equal to the maximum frame number; when the frame number is less than the maximum frame number, the display selection of the display screen is adjusted from the Mth input box to the M+1th input box, where M≥1; when the frame number is greater than or equal to the maximum frame number, the display selection of the display screen is adjusted from the Mth input box to the 1st input box.

[0087] ③Set numerical action:

[0088] When the current input box activation number N3 is equal to 0, the current input box number N2 value is not equal to 0, and the F3 button detects a press action, it enters the input activation mode and sets the value of the current input box activation number N3 to be the same as the current input box number N2.

[0089] When the current input box activation number N3 is not equal to 0, the current input box has entered the input activation mode, and the F2 button detects a short press of less than 3S, then the value corresponding to the current input box is accumulated once according to the logic setting. If the F2 button detects a long press of more than 3S, then the value corresponding to the current input box is continuously accumulated according to the logic setting. When the accumulated value corresponding to the current input box exceeds the maximum value, it is automatically set to the minimum value.

[0090] Specifically, when the input box on the display screen is selected, the third button is pressed first, and the second button is pressed later, the duration of the second button pressing is extracted to obtain the duration; a determination is made as to whether the duration is greater than or equal to a preset duration threshold; if the duration is less than the preset duration threshold, the first step length is used as the target step length to adjust the parameter displayed in the input box; if the duration is greater than or equal to the preset duration threshold, the second step length is used as the target step length to adjust the parameter displayed in the input box, wherein the first step length is less than the second step length. For example, if the preset duration threshold is 3 seconds, the first step length is 1, and the second step length is 5.

[0091] Specifically, the initial parameters are obtained, where the initial parameters are the current parameters displayed in the input box; the sum of the initial parameters and the first step length is calculated to obtain the adjustment parameters; it is determined whether the adjustment parameters are less than or equal to the maximum parameter value; if the adjustment parameters are less than or equal to the maximum parameter value, the parameters displayed in the input box are adjusted from the initial parameters to the adjustment parameters; if the adjustment parameters are greater than the maximum parameter value, the parameters displayed in the input box are adjusted from the initial parameters to the minimum parameter value.

[0092] ④Numerical value confirmation action:

[0093] When the current input box activation number N3 is not equal to 0 and the value corresponding to the current input box is changed, the F3 button detects a press action, saves the modified value, and sets the current input box activation number N3 to 0, that is, the current input box exits the input activation mode.

[0094] ⑤Numerical value cancel action:

[0095] When the current input box number N1 is not equal to 0 and the current input box activation number N3 is not equal to 0, the F4 button detects a press action and sets the current input box activation number N3 to 0, that is, the current input box exits the activation mode and restores the value corresponding to the current input box to the original value before the change.

[0096] When the current input box number N1 is not equal to 0 and the current input box activation number N3 is equal to 0, the F4 button detects a press action and sets the current input box number N1 to 0, that is, the current input box exits the selection mode.

[0097] The touch screen is connected to the PLC via Ethernet, and reads the display and control operation register data related to the current window number N1, the current input box number N2, and the current input box activation number N3. After parsing, it combines the internal strategy script to make screen actions. The overall logic flow chart is as follows Figure 4 The following is a brief explanation of the register analysis related to the display and control operations of the touch screen control logic.

[0098] First, initialize the COM port and public window, remotely connect to the TCP driver of the network PLC device, enter the initial page, and perform register analysis related to display and control operations.

[0099] ⑴Page switching strategy:

[0100] By using the script programming environment that comes with the touch screen, an "overall page turning" operation strategy is established in the background task of the operation strategy. It will automatically execute in a timed loop in the background of the touch screen and read the register value of the current window number N1. The "overall page turning" operation strategy will execute the corresponding "user window.user window name.Open()" script program according to the settings to realize the automatic switching of window pages.

[0101] The code is as follows:

[0102] IF current window number = 1 then

[0103] User window.Status monitoring 1.Open()

[0104] ENDIF

[0105] IF current window number = 2 then

[0106] User window.Sensor parameter setting 2.Open()

[0107] ENDIF

[0108] IF current window number = 3 then

[0109] User window. Protection parameter setting 3.Open()

[0110] ENDIF

[0111] IF current window number = 4 then

[0112] User window. Historical alarm browsing. Open()

[0113] ENDIF

[0114] ⑵Input box selection mode:

[0115] First number the input boxes on this window page from 1 to N max2. Use the built-in rectangular box control of the touch screen, and set the expression in the animation connection of the border color to "current input box number", that is, the value of the current input box number N2, and set the rectangular box color to the preset value according to the setting in the animation connection of the border color. For example, if a certain input box on this window page is numbered 1, set the color of segment 1 in the animation connection of the border color of the rectangular box control with input box number 1 to red, and the colors of other segment points to black. Then when the value of the current input box number N2 is 1, the rectangular border of the input box number 1 will display red, indicating that the current input box has entered the input box selection mode. At other times, it will display black, achieving the same effect of selecting the cursor movement. The touch screen cursor selection effect is as follows Figure 5 shown.

[0116] ⑶ Input box activation mode:

[0117] First number the input boxes on this window page from 1 to N max2 . Use the label control that comes with the touch screen to place a label control after each input box, and set the expression in the animation configuration visibility of the label control to "current input box activation number = current input box number", that is, the value of the current input box activation number N3 is how much, and the label symbol "*" will be displayed after the input box of the corresponding number on this window page, indicating that the current input box has entered the input box activation mode and the value can be changed. The effect of the touch screen numerical input activation is as follows Figure 6 shown.

[0118] Specifically, the border color of the selected input box is adjusted to a first color, wherein the border color of the unselected input box is a second color; a symbol is displayed at a position less than a preset distance from the selected input box, wherein the symbol is used to indicate that the parameters of the input box can be adjusted. The first color can be red, the second color can be black, or other colors. The preset distance can be 5cm, 10cm, 10mm, etc.

[0119] In addition, the operating status of the mine electromagnetic starter can be monitored, including but not limited to key parameters such as current, voltage, temperature, etc. The touch screen serves as the user interface, displaying the system status and receiving operator input, including the display and interaction of alarm information.

[0120] The PLC continuously monitors the various operating parameters of the mine electromagnetic starter. Once it detects a value outside the safety range (such as current overload, high temperature, unstable voltage, etc.), the PLC will trigger an alarm signal.

[0121] When the PLC detects an alarm signal, it will encode the alarm information and store it in a specific register, and at the same time set the value of the "system alarm" register to 1, indicating that an alarm event has occurred.

[0122] The PLC sends the alarm information to the touch screen via Ethernet communication, including the alarm type, level and specific parameters.

[0123] The touchscreen's alarm display includes a dynamically updating alarm scroller that displays the most recent alarm information. Designed with the unique characteristics of the mine environment in mind, the alarm scroller features high contrast and large fonts to ensure legibility even in low light conditions or when operators are wearing protective equipment. Each alarm message includes a timestamp, alarm type, alarm level, and necessary action instructions, helping operators quickly identify the problem and take action.

[0124] A button can also be provided to acknowledge an alarm. This allows the operator to mark the alarm message as read. This updates the alarm status through the PLC's control logic, preventing repeated display of already processed alarms. Acknowledged alarms are archived by the PLC in the alarm history log and marked or removed from the touchscreen, ensuring the real-time availability of the alarm scroll bar.

[0125] In a noisy mine environment, the touch screen also includes a silent alarm function. The operator can temporarily disable the alarm sound by pressing a specific button combination (such as F1+F4), but the alarm information will still be displayed on the screen.

[0126] When the ambient noise decreases or the operator needs to re-enable the alarm sound, the alarm sound can be reactivated through the set recovery button or automatic recovery mechanism.

[0127] In some embodiments, the electromagnetic starter device further includes a camera and a fifth control key, the camera is located on the outer surface of the explosion-proof housing, the camera is used to collect video, the fifth control key has a ninth position and a tenth position, the ninth position is used to control the opening and closing of the camera, the tenth position is a reset position, and the display content of the display screen is adjusted at least according to the position of the control key, which can be specifically achieved by the following steps: when the position of the fifth control key is the ninth position and the position of the third control key is the fifth position, the camera is turned on; the video collected by the camera is obtained; and the video content in the video is extracted according to the target detection technology. target object; according to gesture recognition technology, identify the gesture action of the above-mentioned target object, wherein the above-mentioned gesture action is one of sliding, clicking, and making a fist; obtain a first mapping relationship, wherein the above-mentioned first mapping relationship is the relationship between the above-mentioned gesture action and the operation instruction, and the above-mentioned operation instruction is one of cursor movement, confirmation, cancellation, and numerical adjustment; according to the above-mentioned first mapping relationship, determine the above-mentioned operation instruction corresponding to the above-mentioned gesture action of the above-mentioned target object as the target operation instruction, and adjust the display content of the above-mentioned display screen based on the above-mentioned target operation instruction; when the above-mentioned position of the above-mentioned fifth control key is the above-mentioned ninth position and the above-mentioned position of the above-mentioned fourth control key is the above-mentioned seventh position, turn off the above-mentioned camera.

[0128] In this solution, when the fifth control key is placed in the ninth position and the third control key is placed in the fifth position, the camera is activated and starts to collect video. Through target detection technology, the target object in the video is identified, and then through gesture recognition technology, the gesture action of the target object is identified. The gesture action is mapped to a corresponding operation instruction, and the corresponding operation instruction is executed according to the recognized gesture action. When the fifth control key is placed in the ninth position and the fourth control key is placed in the seventh position, the camera can be turned off. In this way, the display screen can be operated by simple gesture operations, which is more convenient.

[0129] Specifically, when the fifth control key is in the ninth position, the operator wishes to capture video information through the camera. Combined with the confirmation of the third control key in the fifth position, the camera is activated and begins capturing a video stream. The video stream captured by the camera is transmitted to the PLC in real time. The PLC uses an object detection algorithm to identify a pre-defined target object (such as the operator's hand or a specific object) in the video.

[0130] The target object's actions are further analyzed to identify gesture actions (such as sliding, clicking, and clenching a fist), and the gesture actions are converted into specific operation instructions (such as cursor movement, confirmation, cancellation, and value adjustment) through a pre-set first mapping relationship.

[0131] Based on the identified target operation instructions, the PLC updates the display content of the display screen, such as controlling the cursor movement through gesture sliding, clicking to confirm or cancel, and making a fist for data adjustment.

[0132] Specifically, after the camera is turned on, it continuously captures video frames. Each frame is fed into the object detection system for analysis. Before object detection, the video frames typically undergo a series of preprocessing steps, including but not limited to resizing, color conversion (e.g., from RGB to grayscale or HSV color space), noise filtering, and contrast enhancement, to optimize the performance of the subsequent object detection algorithm.

[0133] Object detection algorithms perform feature extraction on preprocessed images. This typically involves converting the image into a set of feature vectors that describe its content. Advanced algorithms, such as deep learning models, automatically learn and extract features through multi-layer convolutional neural networks (CNNs) that are capable of distinguishing between different object categories.

[0134] Use an appropriate object detection algorithm, such as YOLO (You Only Look Once), SSD (Single Shot MultiBox Detector), RCNN (Region-based Convolutional Neural Networks), or their variants, to identify objects in the image. These algorithms locate and classify objects in the image by predicting their bounding boxes and corresponding class probabilities.

[0135] The detection results may include multiple candidate objects and their bounding boxes. Post-processing typically involves removing redundant detections (e.g., non-maximum suppression (NMS)), setting thresholds to eliminate low-confidence detections, and sorting the detected objects to identify the primary objects of interest. After post-processing, high-confidence objects that meet specific criteria (e.g., being in the center of the camera's field of view) are identified as the objects for subsequent gesture recognition analysis.

[0136] Specifically, after object detection technology identifies the target object, it begins analyzing the target object's behavior in the video stream, specifically the hand posture and movement. First, the hand region is isolated from the video frame. This is usually achieved through a deep learning model (such as Mask R-CNN), which can accurately identify and segment the hand image, eliminating background interference and focusing on the hand's movements.

[0137] Next, key points are detected on the hand image, such as finger tips and joints. The location of these key points is crucial for understanding gestures. Key point detection technologies, such as MediaPipe Hands or HandNet, can provide high-precision finger localization.

[0138] With the key point information, the hand posture and dynamics are analyzed to identify specific gesture patterns, such as swiping, clicking, and clenching fists. This step usually relies on machine learning algorithms such as support vector machines (SVM), decision trees, or deep neural networks, which learn the pattern characteristics of different gestures through training data sets.

[0139] Once a gesture is recognized, a pre-set first mapping relationship will be queried, and the recognized gesture action will be mapped to a specific operation instruction. For example, cursor movement corresponds to a sliding gesture, a confirmation instruction corresponds to a click gesture, and a fist gesture may be mapped to a cancel operation or a numerical adjustment of a specific parameter.

[0140] In a specific application, in the remote monitoring and operation scenario of the electromagnetic starter device, the device status is monitored through the video stream collected by the camera. Assuming that the operator needs to adjust the undervoltage lockout threshold of the device, first, the operator places the fifth control key in the ninth position, turns on the camera, and then issues a confirmation instruction through a gesture (such as clicking a finger within the camera's field of view). The third control key automatically recognizes this gesture and maps it to a confirmation operation. Next, the operator shows a fist gesture within the camera's field of view. The second control key recognizes it and converts it into a numerical adjustment instruction. The PLC adjusts the undervoltage lockout threshold, for example, from 20% to 30%, and displays the updated value on the display in real time. After completing all operations, the operator again issues a cancel instruction through a gesture (such as waving a palm). The fourth control key recognizes the gesture and executes the operation, turning off the camera and ending the remote monitoring operation.

[0141] During the specific implementation process, the electromagnetic starter device also includes a microphone and a sixth control key. The microphone is located on the outer surface of the explosion-proof shell. The microphone is used to collect sound. The sixth control key has an eleventh position and a twelfth position. The eleventh position is used to control the opening and closing of the microphone. The twelfth position is a reset position. At least according to the position of the control key, the display content of the display screen is adjusted. This can be achieved by the following steps: when the position of the sixth control key is the eleventh position and the position of the third control key is the fifth position, the microphone is turned on; the sound information collected by the microphone is obtained, and the sound information is converted into text information. ; Perform semantic recognition on the above text information to obtain semantic information, wherein the above semantic information is one of turning pages, increasing values, decreasing values, confirming settings, and canceling settings; obtain a second mapping relationship, wherein the above second mapping relationship is the relationship between the above semantic information and the operation instruction, and the above operation instruction is one of cursor movement, confirmation, cancellation, and value adjustment; according to the above second mapping relationship, determine the above operation instruction corresponding to the above semantic information as the target operation instruction, and adjust the display content of the above display screen based on the above target operation instruction; when the above position of the above sixth control key is the above eleventh position and the above position of the above fourth control key is the above seventh position, turn off the above microphone.

[0142] In this solution, when the sixth control key is placed in the eleventh position and the third control key is placed in the fifth position, the microphone starts working, collects the sound of the environment, and converts the sound into text. Through semantic recognition, the intention of the text is understood, the semantic information is determined, and the semantic information is mapped into corresponding operation instructions. The corresponding operation instructions are executed according to the recognized semantic information. When the sixth control key is placed in the eleventh position and the fourth control key is placed in the seventh position, the microphone can be turned off. In this way, the display screen can be operated by simple voice control, which is more convenient.

[0143] Specifically, when the sixth control key is in the eleventh position, the operator turns on the microphone and prepares to control the device through voice commands. In conjunction with the confirmation action of the third control key being in the fifth position, the microphone begins to collect sound information.

[0144] The sound information collected by the microphone is transmitted to the audio processing module, which uses advanced speech recognition technology to convert the sound into text.

[0145] The text information is then submitted to a semantic recognition module, which analyzes the words and sentence structure to identify the operator's intended operation (such as turning pages, increasing values, etc.) and then converts the identified semantic information into specific operation instructions based on the second mapping relationship.

[0146] After the above target operation instructions are received by the PLC, the display content of the display screen will be updated accordingly, such as cursor movement, value adjustment, etc.

[0147] Specifically, when the sixth control key is in the eleventh position, that is, the microphone is turned on, the microphone begins to collect the voice signals emitted by the operator in real time. These signals first exist in analog form and need to be converted into digital signals through an analog-to-digital converter (ADC).

[0148] Digital sound signals enter the preprocessing stage, which typically includes noise cancellation, gain control, and framing. Noise cancellation removes ambient noise to ensure clarity; gain control adjusts the volume to prevent excessive or low volume from affecting subsequent processing; and framing breaks the continuous sound signal into several short audio frames to facilitate feature extraction.

[0149] Each audio frame is analyzed for features, extracting key features that aid speech recognition, such as Mel-Frequency Cepstral Coefficients (MFCCs) and Linear Predictive Coding (LPC). These features reflect the spectral and temporal characteristics of the sound and are crucial for distinguishing different speech patterns. The extracted features are then fed into an acoustic model, which, after learning from a large number of speech samples, can identify the sound segments or phonemes corresponding to these features. Commonly used acoustic models include hidden Markov models (HMMs), deep neural networks (DNNs), and long short-term memory networks (LSTMs).

[0150] Based on acoustic model recognition, the sound information is decoded into individual words or phrases. This step typically involves a language model to determine the most likely word sequence, taking into account grammar and context to improve recognition accuracy. The recognized text information may contain incorrect or incomplete words. Post-processing corrects the recognition results and performs spelling checks to improve the final text quality. Finally, the text information processed through these steps is sent to the PLC as input for subsequent semantic recognition and operation instruction mapping.

[0151] Specifically, the sound information collected by the microphone has been converted into text information, which contains the instructions issued by the operator. First, the text information is preprocessed, including text cleaning (removing irrelevant symbols and stop words), stemming (converting words to their basic form), part-of-speech tagging (determining the grammatical role of each word in the sentence), and named entity recognition (recognizing specific entities such as numbers and proper nouns).

[0152] The NLP system further extracts text features, such as word frequency, inter-word relationships, and lexical semantics, which are then used for subsequent semantic understanding and classification. Pre-trained semantic recognition models, such as deep learning-based sequence tagging models (e.g., BiLSTM-CRF) or attention-based Transformer models, are used to understand and classify the semantics of text. These models can recognize commands such as "turn a page" and "increase a value."

[0153] The semantic recognition model not only parses the meaning of the text itself but also considers the context and specific scenarios to identify the operator's true intention. For example, the instruction "Set the undervoltage ratio to 20%" not only contains the numerical value but also recognizes the operator's intention to adjust the undervoltage ratio.

[0154] Once the semantic information is identified, a second mapping relationship is searched to convert the semantic information into specific operational instructions, such as "turn page" corresponding to switching pages on the display screen, and "increase value" corresponding to incrementing a numeric input box. Based on the determined operational instructions, the PLC updates the display screen content and performs the corresponding action, such as turning pages or adjusting values.

[0155] In a specific application, in a mine, an operator may be wearing heavy protective clothing, making it inconvenient or unsafe to directly touch the display or press buttons. At this time, the role of microphones and voice recognition technology is particularly important. Suppose an operator needs to adjust the overload protection current setting of an electromagnetic starter. The operator first places the sixth control key in the eleventh position, turning on the microphone. Then, the operator says loudly, "Reduce the value." The sound information collected by the microphone is converted into text information, and the semantic recognition module identifies the operator's intention. Based on the second mapping relationship, this semantic information is converted into an operation instruction to reduce the value. The PLC updates the overload protection current setting accordingly, for example, from 50A to 40A, and displays the adjusted parameters in real time on the display. After the operation is completed, the operator turns off the microphone again through the voice command "Turn off the microphone", ending the voice control operation.

[0156] In order to enhance tactile feedback, the electromagnetic starter device also includes a vibrator, a fifth control key and a sixth control key. The vibrator is integrated in the control key, and the vibrator is used to vibrate when the control key is pressed. The fifth control key has a ninth position and a tenth position. The ninth position is used to control the opening and closing of the camera, and the tenth position is a reset position. The sixth control key has an eleventh position and a twelfth position. The eleventh position is used to control the opening and closing of the microphone, and the twelfth position is a reset position. After obtaining the position of the control key, the method also includes the following steps: when the position of the first control key is the first position, controlling the vibrator integrated in the first control key to vibrate at a first frequency; when the position of the second control key is the first position, controlling the vibrator integrated in the first control key to vibrate at a first frequency When the position of the fifth control key is the ninth position, the vibrator integrated in the fifth control key is controlled to vibrate at the first frequency; when the position of the sixth control key is the eleventh position, the vibrator integrated in the sixth control key is controlled to vibrate at the first frequency; when the position of the third control key is the fifth position, the vibrator integrated in the third control key is controlled to vibrate at the second frequency, wherein the second frequency is greater than the first frequency; when the position of the fourth control key is the seventh position, the vibrator integrated in the fourth control key is controlled to vibrate at the second frequency.

[0157] In this solution, in the electromagnetic starter device, a vibrator is integrated into the control key, and the vibrator is used to provide tactile feedback during operation. The tactile feedback mode of different control keys can be different to distinguish different operation types.

[0158] In the above-mentioned electromagnetic starter device, a vibrator is integrated into the control key to provide tactile feedback during operation and enhance the sense of operation confirmation. When the control key is pressed to a specific position, the vibrator starts to vibrate at a corresponding frequency. For example, when the first control key is pressed to the first position, the vibration frequency is low (for example, 10Hz), while when the third control key is pressed to the fifth position to confirm the operation, the vibration frequency is increased to a high frequency (for example, 30Hz) to distinguish different operation types.

[0159] Vibration feedback enhances the sense of confirmation and accuracy of operations, allowing operators to clearly perceive whether an operation is successful even in noisy or obstructed environments. Especially for critical operations that require confirmation or cancellation, high-frequency vibration provides an additional confirmation signal to prevent incorrect operations.

[0160] The fifth and seventh positions are used to confirm and cancel operations, respectively, and are distinguished by vibrations of the second and first frequencies. The technical effect of this is that by differentiating the vibration frequencies, the operator can intuitively distinguish between confirmation and cancellation operations, reducing operational confusion and improving the safety and efficiency of device use.

[0161] Two vibration frequencies are designed: low-frequency vibration (such as 10Hz) is used for feedback of normal operations, and high-frequency vibration (such as 30Hz) is used for confirmation of key operations.

[0162] When the control key is pressed to a normal position such as the first position or the third position, low-frequency vibration is triggered; when the control key is pressed to the confirmation or cancel position (the fifth position or the seventh position), high-frequency vibration is triggered.

[0163] High-frequency vibration provides operators with stronger tactile stimulation, especially in noisy environments or when operators wear gloves. High-frequency vibration can better penetrate environmental noise and the limitations of physical perception, ensuring that operators can clearly perceive whether operations are confirmed or canceled, thereby enhancing the controllability and safety of the equipment.

[0164] In a specific application, in the aforementioned mine environment, operators may work in high-noise conditions and often have limited visibility. The operator needs to adjust the overload protection threshold of an electromagnetic starter from 40A to 45A. The operator first places the sixth control button in the eleventh position (microphone on) and issues a voice command: "Increase value." The microphone captures the voice, translates it into text using natural language processing (NLP), and then uses semantic recognition technology to identify the operator's intent. Based on a second mapping relationship, the PLC translates the "increase value" command into a specific operation and displays the adjusted value, "45A," on the display. During this process, when the operator presses the third control button to the fifth position (confirmation position), the vibrator integrated into the third control button vibrates at a second frequency (high frequency, such as 30Hz), providing the operator with strong tactile feedback confirming the operation. To cancel an operation, the operator presses the fourth control button to the seventh position (cancel position). The vibrator then vibrates at a first frequency (low frequency, such as 10Hz), providing gentle tactile feedback to inform the operator that the operation has been canceled.

[0165] Mine electromagnetic starters typically have explosion-proof enclosures, and touch screens are installed within these enclosures, making direct touch operation impossible. They often require a dedicated wireless mouse or matrix keypad interface board. This increases equipment costs, limits installation space, and complicates system connectivity. PLCs are increasingly being used in mine integrated protection systems due to their ease of implementing complex control logic, ease of programming and modification, and excellent reliability and stability.

[0166] To address the issues of existing mine electromagnetic starter display and control devices requiring additional equipment, resulting in increased equipment costs, limited space for installing new devices, and complex system connections, a pressing issue arises: how to leverage the PLC's powerful communication and programmable logic control capabilities to simply and conveniently implement control of mine electromagnetic starter display and control devices without adding additional equipment.

[0167] Specifically, the four buttons and their combination keys on the door panel of the mine electromagnetic starter are connected to the PLC. After the PLC reads the input status of the buttons, it makes a comprehensive judgment and performs five logical operations: move, add, confirm, cancel and turn the page. After the logic processing is completed in the PLC, the touch screen communicates with the PLC Ethernet to read the current window number, current input box number, and current input box activation number in real time. The touch screen runs the background task strategy in a loop and executes actions such as page turning, cursor movement, and input box activation status display, achieving the same control effect as directly operating the touch screen.

[0168] The embodiment of the present application also provides a controller for an electromagnetic starter device. It should be noted that the controller of the electromagnetic starter device of the embodiment of the present application can be used to execute the control method for the electromagnetic starter device provided in the embodiment of the present application. The device is used to implement the above-mentioned embodiments and preferred embodiments, and the details that have been explained will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and conceivable.

[0169] The following introduces the controller of the electromagnetic starter device provided in the embodiment of the present application.

[0170] Figure 7 : is a structural block diagram of a controller of an electromagnetic starter device according to an embodiment of the present application. Figure 7 As shown, the device includes:

[0171] An acquisition unit 100 is used to acquire the position of a control key;

[0172] The adjustment unit 200 is configured to adjust the display content of the display screen at least according to the position of the control key.

[0173] Through this embodiment, when the control key is pressed or reset, the position of the control key will change. By obtaining the position of the control key, the specific operation instruction can be parsed, and then the display screen can be controlled based on the operation instruction without the need for operation through a mouse and keyboard, which is more convenient to operate.

[0174] In a specific implementation process, the plurality of control keys include a first control key, a second control key, a third control key and a fourth control key. The first control key has a first position and a second position. The first position is used to switch the page of the display screen or switch the input box of the display screen. The second position is a reset position. The second control key has a third position and a fourth position. The third position is used to adjust the data of the input box. The fourth position is a reset position. The third control key has a fifth position and a sixth position. The fifth position is used to confirm. The sixth position is a reset position. The fourth control key has a seventh position and an eighth position. The seventh position is used to To achieve cancellation, the eighth position is a reset position, and the adjustment unit includes a first adjustment module, a second adjustment module, a third adjustment module, a fourth adjustment module, a fifth adjustment module, a sixth adjustment module, and a seventh adjustment module. The first adjustment module is used to display the N+1th page when the current display page of the above-mentioned display screen is the Nth page, the page number of the above-mentioned current display page is less than the maximum page number, the position of the above-mentioned first control key is the above-mentioned first position, and the position of the above-mentioned third control key is the above-mentioned fifth position, wherein N≥1; the second adjustment module is used to display the N+1th page when the current display page of the above-mentioned display screen is the Nth page, the page number of the above-mentioned current display page is equal to the maximum page number The first page is displayed when the page number, the position of the first control key is the first position, and the position of the third control key is the fifth position are all satisfied; the third adjustment module is used to display the selected M+1th input box when the currently selected input box on the display screen is the Mth input box, the box number of the currently selected input box is less than the maximum box number, and the position of the first control key is the first position, wherein M≥1; the fourth adjustment module is used to display the selected M+1th input box when the currently selected input box on the display screen is the Mth input box, the box number of the currently selected input box is equal to the maximum box number, and the position of the first control key is the first position. In this case, the first input box is displayed as selected; the fifth adjustment module is used for adjusting the parameters displayed in the selected input box with a target step length when the above-mentioned position of the above-mentioned second control key is the above-mentioned third position, wherein the above-mentioned target step length is a preset fixed step length; the sixth adjustment module is used for determining the adjusted parameters of the above-mentioned input box as the target parameters and displaying the above-mentioned target parameters in the above-mentioned input box when the above-mentioned position of the above-mentioned third control key is the above-mentioned fifth position; the seventh adjustment module is used for determining the parameters of the above-mentioned input box before adjustment as the above-mentioned target parameters and displaying the above-mentioned target parameters in the above-mentioned input box when the above-mentioned position of the above-mentioned fourth control key is the above-mentioned seventh position.

[0175] In this solution, when the first control key and the third control key are pressed at the same time, the pages can be switched; when the first control key is pressed alone, the selected input box can be switched; when the second control key is pressed, the parameters in the input box can be adjusted; when the third control key is pressed, the operation can be confirmed and saved; when the fourth control key is pressed, the operation can be canceled. Through the above-mentioned operation key control, the display screen can be operated more conveniently.

[0176] In some embodiments, the electromagnetic starter device further includes a camera and a fifth control key, the camera is located on the outer surface of the explosion-proof housing, the camera is used to collect video, the fifth control key has a ninth position and a tenth position, the ninth position is used to control the opening and closing of the camera, the tenth position is a reset position, the adjustment unit includes a first opening module, a first acquisition module, an extraction module, a gesture recognition module, a second acquisition module, a first determination module and a first closing module, the first opening module is used to turn on the camera when the position of the fifth control key is the ninth position and the position of the third control key is the fifth position; the first acquisition module is used to obtain the video collected by the camera; the extraction module is used to extract the video according to the target detection technology. a target object in the video; a gesture recognition module is used to recognize the gesture action of the above-mentioned target object according to gesture recognition technology, wherein the above-mentioned gesture action is one of sliding, clicking, and making a fist; the second acquisition module is used to obtain a first mapping relationship, wherein the above-mentioned first mapping relationship is the relationship between the above-mentioned gesture action and the operation instruction, and the above-mentioned operation instruction is one of cursor movement, confirmation, cancellation, and numerical adjustment; the first determination module is used to determine the above-mentioned operation instruction corresponding to the above-mentioned gesture action of the above-mentioned target object as the target operation instruction according to the above-mentioned first mapping relationship, and adjust the display content of the above-mentioned display screen based on the above-mentioned target operation instruction; the first closing module is used to turn off the above-mentioned camera when the above-mentioned position of the above-mentioned fifth control key is the above-mentioned ninth position and the above-mentioned position of the above-mentioned fourth control key is the above-mentioned seventh position.

[0177] In this solution, when the fifth control key is placed in the ninth position and the third control key is placed in the fifth position, the camera is activated and starts to collect video. Through target detection technology, the target object in the video is identified, and then through gesture recognition technology, the gesture action of the target object is identified. The gesture action is mapped to a corresponding operation instruction, and the corresponding operation instruction is executed according to the recognized gesture action. When the fifth control key is placed in the ninth position and the fourth control key is placed in the seventh position, the camera can be turned off. In this way, the display screen can be operated by simple gesture operations, which is more convenient.

[0178] During the specific implementation process, the electromagnetic starter device also includes a microphone and a sixth control key. The microphone is located on the outer surface of the explosion-proof shell. The microphone is used to collect sound. The sixth control key has an eleventh position and a twelfth position. The eleventh position is used to control the opening and closing of the microphone. The twelfth position is a reset position. The adjustment unit includes a second opening module, a third acquisition module, a semantic recognition module, a fourth acquisition module, a second determination module and a second closing module. The second opening module is used to turn on the microphone when the position of the sixth control key is the eleventh position and the position of the third control key is the fifth position; the third acquisition module is used to obtain the sound information collected by the microphone and convert the sound information into text information; The semantic recognition module is used to perform semantic recognition on the above-mentioned text information to obtain semantic information, wherein the above-mentioned semantic information is one of turning pages, increasing values, decreasing values, confirming settings, and canceling settings; the fourth acquisition module is used to obtain a second mapping relationship, wherein the above-mentioned second mapping relationship is the relationship between the above-mentioned semantic information and the operation instruction, and the above-mentioned operation instruction is one of cursor movement, confirmation, cancellation, and numerical adjustment; the second determination module is used to determine the above-mentioned operation instruction corresponding to the above-mentioned semantic information as the target operation instruction according to the above-mentioned second mapping relationship, and adjust the display content of the above-mentioned display screen based on the above-mentioned target operation instruction; the second closing module is used to turn off the above-mentioned microphone when the above-mentioned position of the above-mentioned sixth control key is the above-mentioned eleventh position and the above-mentioned position of the above-mentioned fourth control key is the above-mentioned seventh position.

[0179] In this solution, when the sixth control key is placed in the eleventh position and the third control key is placed in the fifth position, the microphone starts working, collects the sound of the environment, and converts the sound into text. Through semantic recognition, the intention of the text is understood, the semantic information is determined, and the semantic information is mapped into corresponding operation instructions. The corresponding operation instructions are executed according to the recognized semantic information. When the sixth control key is placed in the eleventh position and the fourth control key is placed in the seventh position, the microphone can be turned off. In this way, the display screen can be operated by simple voice control, which is more convenient.

[0180] In order to enhance tactile feedback, the electromagnetic starter device also includes a vibrator, a fifth control key and a sixth control key. The vibrator is integrated in the control key, and the vibrator is used to vibrate when the control key is pressed. The fifth control key has a ninth position and a tenth position. The ninth position is used to control the opening and closing of the camera, and the tenth position is a reset position. The sixth control key has an eleventh position and a twelfth position. The eleventh position is used to control the opening and closing of the microphone, and the twelfth position is a reset position. The device also includes a first control unit, a second control unit, a third control unit, a fourth control unit, a fifth control unit and a sixth control unit. The first control unit is used to, after obtaining the position of the control key, control the vibrator integrated in the first control key to vibrate at a first frequency when the position of the first control key is the first position; the second control unit is used to, at the top When the position of the second control key is the third position, the vibrator integrated in the second control key is controlled to vibrate at the first frequency; the third control unit is used to control the vibrator integrated in the fifth control key to vibrate at the first frequency when the position of the fifth control key is the ninth position; the fourth control unit is used to control the vibrator integrated in the sixth control key to vibrate at the first frequency when the position of the sixth control key is the eleventh position; the fifth control unit is used to control the vibrator integrated in the third control key to vibrate at a second frequency when the position of the third control key is the fifth position, wherein the second frequency is greater than the first frequency; the sixth control unit is used to control the vibrator integrated in the fourth control key to vibrate at the second frequency when the position of the fourth control key is the seventh position.

[0181] In this solution, in the electromagnetic starter device, a vibrator is integrated into the control key, and the vibrator is used to provide tactile feedback during operation. The tactile feedback mode of different control keys can be different to distinguish different operation types.

[0182] The controller of the electromagnetic starter device includes a processor and memory. The acquisition unit and adjustment unit, etc., are stored as program units in the memory. The processor executes the program units stored in the memory to implement the corresponding functions. The modules are all located in the same processor; alternatively, the modules can be located in different processors in any combination.

[0183] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be set, and by adjusting the kernel parameters, the problem of using an electromagnetic actuator to connect an external wireless mouse or keyboard to operate the display screen is solved.

[0184] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0185] An embodiment of the present invention provides a computer-readable storage medium, which includes a stored program. When the program is executed, the device where the computer-readable storage medium is located is controlled to execute the control method of the electromagnetic starter device.

[0186] An embodiment of the present invention provides a processor, which is used to run a program, wherein the control method of the electromagnetic starter device is executed when the program is run.

[0187] The present application also provides an electromagnetic starter system, which includes an electromagnetic starter device and a controller, wherein the electromagnetic starter device is any one of the above-mentioned electromagnetic starter devices; the controller is communicatively connected to the electromagnetic starter device, and the controller is used to execute any one of the control methods of the above-mentioned electromagnetic starter devices.

[0188] Specifically, if Figure 8 As shown, the electromagnetic starter device includes an electromagnetic starter 10 , a display screen 11 , at least one control key 12 and a controller 13 .

[0189] It also includes a switch comprehensive protection I / O interface 14, a current transformer 15, a switch comprehensive protection RS485 interface 16, a vacuum contactor 17, an electromagnetic starter movement 18, an isolation reversing switch 19, a power input interface 20, a transformer 21, and a load output interface 22.

[0190] The switch comprehensive protection I / O interface is an interface used to connect external sensors and actuators. It receives signals from sensors (such as current, voltage, etc.) and performs protection actions such as overload protection and short circuit protection based on these signals.

[0191] A current transformer is a measuring device used to monitor the current strength in a circuit. It converts large currents into smaller ones, making them easier to measure and protecting circuits from damage caused by overcurrent.

[0192] The switch comprehensive protection RS485 interface is used for serial data communication with external devices (such as PLC). It adopts differential signal transmission, has strong anti-interference ability and long-distance transmission capability, and is used to transmit protection status, measurement data and other information.

[0193] A vacuum contactor is a switching device used to frequently connect and disconnect the main circuit. It works in a vacuum environment, reducing the generation of arcs and improving the reliability of disconnection and connection.

[0194] The electromagnetic starter movement is the core component of the electromagnetic starter. It controls the connection and disconnection of the vacuum contactor through the electromagnetic principle to achieve load control.

[0195] Isolating reversing switch is used to physically isolate and switch circuits. When maintenance or replacement of internal components is required, it can cut off the circuit to ensure the safety of the operator.

[0196] The power input interface is the interface for connecting the device to the external power supply. It is responsible for receiving the power input of the external power supply, providing power for the entire electromagnetic starter system, and is used to connect to the external power distribution line 23.

[0197] The transformer is used to adjust the voltage and convert the input high voltage electricity into a voltage suitable for the operation of internal components to ensure the safe operation of the system.

[0198] The load output interface is connected to the external load 24 of the device that needs to be started or controlled, such as a motor, a water pump, etc. It outputs the converted power to these devices to achieve the distribution and control of electric energy.

[0199] An embodiment of the present invention provides a device comprising a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, it implements at least the steps of a method for controlling an electromagnetic starter device. The device herein may be a server, a PC, a PAD, a mobile phone, or the like.

[0200] A computer program product includes a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the control method of the electromagnetic starter device in each embodiment of the present application are implemented.

[0201] Obviously, those skilled in the art will appreciate that the various modules or steps of the present invention described above can be implemented using a general-purpose computing device, can be centralized on a single computing device, or can be distributed across a network of multiple computing devices. They can be implemented using program code executable by the computing device, and thus, can be stored in a storage device and executed by the computing device. In some cases, the steps shown or described herein can be performed in a different order than that shown, or can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0202] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0203] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0204] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0205] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0206] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0207] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0208] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices, or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory media such as modulated data signals and carrier waves.

[0209] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0210] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An electromagnetic starter device, characterized in that: include: electromagnetic starter; A display screen, used to display relevant data during the operation of the electromagnetic starter; at least one control key located on a surface of the electromagnetic actuator, the control key being at least used to control the display of the display screen; The explosion-proof housing comprises a transparent portion and an opening portion, the display screen is located in the cavity of the explosion-proof housing and on one side of the transparent portion, and the control key passes through the opening portion.

2. The electromagnetic starter device according to claim 1, characterized in that: The electromagnetic starter device comprises: A camera is located on the outer surface of the explosion-proof housing, and is used to collect video; A microphone is located on the outer surface of the explosion-proof housing and is used to collect sound; A vibrator is integrated into the control key, and is used for vibrating when the control key is pressed.

3. The electromagnetic starter device according to claim 2, characterized in that: The plurality of control keys include: a first control key having a first position and a second position, wherein the first position is used to switch pages of the display screen or switch input boxes of the display screen, and the second position is a reset position; A second control key has a third position and a fourth position, wherein the third position is used to adjust the data in the input box, and the fourth position is a reset position; a third control key having a fifth position and a sixth position, wherein the fifth position is used for confirmation and the sixth position is a reset position; a fourth control key having a seventh position and an eighth position, wherein the seventh position is used to cancel and the eighth position is a reset position; a fifth control key having a ninth position and a tenth position, wherein the ninth position is used to control the on and off of the camera, and the tenth position is a reset position; The sixth control key has an eleventh position and a twelfth position. The eleventh position is used to control the on and off of the microphone, and the twelfth position is a reset position.

4. A control method for an electromagnetic starter device according to any one of claims 1 to 3, characterized in that: The method comprises: Get the position of the control key; The display content of the display screen is adjusted at least according to the position of the control key.

5. The method according to claim 4, characterized in that The plurality of control keys include a first control key, a second control key, a third control key, and a fourth control key, the first control key having a first position and a second position, the first position being used to implement page switching of the display screen or input box switching of the display screen, the second position being a reset position, the second control key having a third position and a fourth position, the third position being used to implement data adjustment of the input box, the fourth position being a reset position, the third control key having a fifth position and a sixth position, the fifth position being used to implement confirmation, the sixth position being a reset position, the fourth control key having a seventh position and an eighth position, the seventh position being used to implement cancellation, the eighth position being a reset position, and adjusting the display content of the display screen at least according to the positions of the control keys, including one of the following: Displaying the N+1th page if the currently displayed page of the display screen is the Nth page, the page number of the currently displayed page is less than the maximum page number, the position of the first control key is the first position, and the position of the third control key is the fifth position, where N≥1; Displaying page 1 if the currently displayed page of the display screen is page N, the page number of the currently displayed page is equal to the maximum page number, the position of the first control key is the first position, and the position of the third control key is the fifth position. If the currently selected input box on the display screen is the Mth input box, the box number of the currently selected input box is less than the maximum box number, and the position of the first control key is the first position, displaying the M+1th input box as selected, where M≥1; When the currently selected input box on the display screen is the Mth input box, the box number of the currently selected input box is equal to the maximum box number, and the position of the first control key is the first position, displaying that the first input box is selected; When the position of the second control key is the third position, adjusting the parameter displayed in the selected input box with a target step length, wherein the target step length is a preset fixed step length; When the position of the third control key is the fifth position, determining the adjusted parameter of the input box as a target parameter, and displaying the target parameter in the input box; When the position of the fourth control key is the seventh position, the parameter of the input box before adjustment is determined as the target parameter, and the target parameter is displayed in the input box.

6. The method according to claim 5, characterized in that The electromagnetic starter device further includes a camera and a fifth control key. The camera is located on the outer surface of the explosion-proof housing and is used to capture video. The fifth control key has a ninth position and a tenth position. The ninth position is used to control the on and off of the camera. The tenth position is a reset position. The display content of the display screen is adjusted at least according to the position of the control key, including: When the position of the fifth control key is the ninth position and the position of the third control key is the fifth position, turning on the camera; Obtaining the video captured by the camera; Extracting the target object in the video according to the target detection technology; Identify the gesture of the target object using gesture recognition technology, wherein the gesture is one of sliding, clicking, and clenching a fist; Acquire a first mapping relationship, wherein the first mapping relationship is a relationship between the gesture action and an operation instruction, and the operation instruction is one of cursor movement, confirmation, cancellation, and value adjustment; determining, according to the first mapping relationship, the operation instruction corresponding to the gesture action of the target object as a target operation instruction, and adjusting display content of the display screen based on the target operation instruction; When the position of the fifth control key is the ninth position and the position of the fourth control key is the seventh position, the camera is turned off.

7. The method according to claim 5, characterized in that The electromagnetic starter device further includes a microphone and a sixth control key. The microphone is located on the outer surface of the explosion-proof housing and is used to collect sound. The sixth control key has an eleventh position and a twelfth position. The eleventh position is used to control the on and off of the microphone. The twelfth position is a reset position. The display content of the display screen is adjusted according to at least the position of the control key, including: When the position of the sixth control key is the eleventh position and the position of the third control key is the fifth position, turning on the microphone; Acquiring sound information collected by the microphone and converting the sound information into text information; Performing semantic recognition on the text information to obtain semantic information, wherein the semantic information is one of turning a page, increasing a value, decreasing a value, confirming a setting, and canceling a setting; Acquire a second mapping relationship, wherein the second mapping relationship is a relationship between the semantic information and an operation instruction, and the operation instruction is one of cursor movement, confirmation, cancellation, and value adjustment; determining, according to the second mapping relationship, the operation instruction corresponding to the semantic information as a target operation instruction, and adjusting display content of the display screen based on the target operation instruction; When the position of the sixth control key is the eleventh position and the position of the fourth control key is the seventh position, the microphone is turned off.

8. The method according to claim 5, characterized in that The electromagnetic starter device further includes a vibrator, a fifth control key, and a sixth control key. The vibrator is integrated into the control key and is configured to vibrate when the control key is pressed. The fifth control key has a ninth position and a tenth position. The ninth position is configured to control the on and off of the camera. The tenth position is a reset position. The sixth control key has an eleventh position and a twelfth position. The eleventh position is configured to control the on and off of the microphone. The twelfth position is a reset position. After obtaining the position of the control key, the method further includes: When the position of the first control key is the first position, controlling the vibrator integrated in the first control key to vibrate at a first frequency; When the position of the second control key is the third position, controlling the vibrator integrated with the second control key to vibrate at the first frequency; When the position of the fifth control key is the ninth position, controlling the vibrator integrated in the fifth control key to vibrate at the first frequency; When the position of the sixth control key is the eleventh position, controlling the vibrator integrated in the sixth control key to vibrate at the first frequency; When the position of the third control key is the fifth position, controlling the vibrator integrated in the third control key to vibrate at a second frequency, wherein the second frequency is greater than the first frequency; When the position of the fourth control key is the seventh position, the vibrator integrated in the fourth control key is controlled to vibrate at the second frequency.

9. A controller for an electromagnetic starter device according to any one of claims 1 to 3, characterized in that: The controller includes: Get unit, used to get the position of the control key; An adjusting unit is used to adjust the display content of the display screen at least according to the position of the control key.

10. An electromagnetic starter system, characterized in that: The electromagnetic starter system comprises: An electromagnetic starter device, wherein the electromagnetic starter device is the electromagnetic starter device according to any one of claims 1 to 3; A controller is communicatively connected to the electromagnetic starter device, and the controller is used to execute the control method of the electromagnetic starter device according to any one of claims 4 to 8.

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