Control method of production mechanical equipment and related equipment

Abstract

The invention discloses a control method for production mechanical equipment and related equipment, and relates to the technical field of safety management, and the method comprises the steps: carrying out the counting of workers based on a laser transmitting device and a laser receiving device under the condition that the workers enter and exit a mechanical protection door, the personnel counting is realized based on the PLC control module; and starting of the production mechanical equipment is controlled based on the counting result of the number of people entering and exiting and the closing state of the mechanical protection door, and the closing state is controlled based on the electromagnetic lock. The personnel counting technology based on the laser transmitting and receiving device is introduced, and safety management of production mechanical equipment is achieved in combination with the PLC control module.

Description

Technical Field

[0001] This application relates to the technical field of safety management, and particularly to a control method for production machinery and equipment and related devices. Background Art

[0002] In current industrial production, mechanical equipment is widely used in various scenarios, and its operating efficiency and safety directly affect the production benefits of enterprises. However, due to the complex production site environment, there are a large number of unsafe behaviors or abnormal equipment operations, resulting in frequent mechanical injury accidents. Especially in scenarios involving the interaction between personnel and mechanical equipment, improper management of protective doors and the lack of equipment control mechanisms lead to serious consequences such as pinching and collision.

[0003] However, traditional safety management of mechanical equipment usually relies on mechanical isolation and manual monitoring methods, such as setting simple locking devices on protective doors, lacking an intelligent linkage mechanism, and having management loopholes and safety hazards. Therefore, there is an urgent need for a control method for production mechanical equipment to solve the above-mentioned problems. Summary of the Invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further elaborated in the Detailed Description section. The Summary of the Invention section of this application does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0005] In a first aspect, this application provides a control method for production mechanical equipment. The production mechanical equipment includes a mechanical protective door, a laser emission device, a laser reception device, an electromagnetic lock, and a PLC (Programmable Logic Controller) control module. Among them, the laser emission device includes a first laser emission device and a second laser emission device, and the laser reception device includes a first laser reception device and a second laser reception device. The control method for the production mechanical equipment includes:

[0006] When an operator enters or exits the mechanical protective door, personnel counting is performed based on the laser emission device and the laser reception device, where the personnel counting is implemented based on the PLC control module;

[0007] Based on the counting result of the number of people entering and exiting and the closed state of the mechanical protective door, the start of the production mechanical equipment is controlled, where the closed state is controlled based on the electromagnetic lock.

[0008] In some embodiments, when an operator enters or exits the mechanical protective door, performing personnel counting based on the laser emission device and the laser reception device includes:

[0009] When an operator enters the mechanical protection door, the count of the number of people entering is increased;

[0010] When an operator leaves the mechanical protection door, the count of the number of people leaving is decreased.

[0011] In some embodiments, when an operator enters the mechanical protection door, increasing the count of the number of people entering includes:

[0012] The PLC control module sends a trigger signal to the first laser emitting device;

[0013] The first laser emitting device emits a laser beam in a preset direction;

[0014] After the laser beam encounters an operator in the detection area, it is reflected, and the reflected beam returns to the first laser receiving device;

[0015] The first laser receiving device converts the received reflected signal into an electrical signal and performs signal processing to obtain a first detection signal;

[0016] After receiving the first detection signal, a start command is sent to the second laser emitting device so that the second laser emitting device emits a laser beam in a preset direction or a direction parallel to the preset direction;

[0017] After the laser beam encounters an operator in the detection area, it is reflected, and the reflected beam returns to the second laser receiving device;

[0018] The second laser receiving device converts the received reflected signal into an electrical signal and performs signal processing to obtain a second detection signal;

[0019] Based on the first detection signal and the second detection signal, the count of the number of people entering is increased.

[0020] In some embodiments, increasing the count of the number of people entering based on the first detection signal and the second detection signal includes:

[0021] Obtain the first timestamp of the first detection signal and the second timestamp of the second detection signal;

[0022] Based on the first timestamp and the second timestamp, determine the occurrence order of the first detection signal and the second detection signal;

[0023] Within a preset time window, based on the occurrence order, the detection direction corresponding to the first detection signal, and the detection direction corresponding to the second detection signal, determine the validity of the operator entry event;

[0024] When the personnel entry event is a valid personnel entry event, increment the current count of the number of people entering.

[0025] In some embodiments, based on the counting result of the number of people entering and leaving and the closed state of the mechanical protection door, the start of the production mechanical equipment is controlled, including:

[0026] When the PLC control module detects that the number of people entering is the same as the number of people leaving, it controls the electromagnetic lock to lock the mechanical protection door and starts the operation of the production mechanical equipment.

[0027] In some embodiments, it further includes:

[0028] The first laser emission device and the second laser emission device adopt different frequencies or modulation methods to distinguish the people entering and leaving in different directions.

[0029] In some embodiments, the production mechanical equipment further includes a mechanical protection net, which is used to prevent operators or objects from being stuck in the protection door structure.

[0030] In a second aspect, the present application provides a control device for production mechanical equipment. The production mechanical equipment includes a mechanical protection door, a laser emission device, a laser reception device, an electromagnetic lock, and a PLC control module. Among them, the laser emission device includes a first laser emission device and a second laser emission device, and the laser reception device includes a first laser reception device and a second laser reception device. The control device for production mechanical equipment includes:

[0031] A personnel counting unit, which is used to count the number of people based on the laser emission device and the laser reception device when the operator enters and leaves the mechanical protection door. Among them, the personnel counting is realized based on the PLC control module;

[0032] An equipment start unit, which is used to control the start of the production mechanical equipment based on the counting result of the number of people entering and leaving and the closed state of the mechanical protection door. Among them, the closed state is controlled based on the electromagnetic lock.

[0033] In a third aspect, an electronic device includes: a memory, a processor, and a computer program stored in the above memory and executable on the processor. The processor is used to implement the steps of the control method of the production mechanical equipment according to any one of the first aspects when executing the computer program stored in the memory.

[0034] In a fourth aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored. When the above computer program is executed by a processor, it implements the control method of the production mechanical equipment according to any one of the first aspects.

[0035] In summary, through the two-way detection technology based on the laser emission and reception device, combined with the PLC control module, the present application realizes accurate personnel counting and intelligent safety interlock control, with significant safety and practical advantages. It effectively distinguishes the entry and exit directions of personnel by using the timestamp and direction determination mechanism, avoiding signal confusion and improving the counting accuracy; through the interlock with the mechanical protection door and the electromagnetic lock, the equipment operation is started only under the condition that the personnel status and the protection door are fully locked, eliminating potential safety hazards; the laser design with multiple frequencies or modulation methods is adopted to enhance the anti-interference ability and ensure stability in complex environments. In addition, the modular design of the present application has strong adaptability and is convenient to be integrated into other intelligent management systems, comprehensively improving the safety management level and operation efficiency of the production site. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of this specification. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0037] Figure 1 is a schematic flowchart of a control method for a production mechanical equipment provided by an embodiment of the present application;

[0038] Figure 2 is a schematic structural diagram of a large-scale production mechanical equipment;

[0039] Figure 3 is Figure 2 a partial enlarged structural diagram of the mechanical protection door in

[0040] Figure 4 is a schematic structural diagram of a control device for a production mechanical equipment provided by an embodiment of the present application;

[0041] Figure 5 is a schematic structural diagram of a control device for a production mechanical equipment provided by an embodiment of the present application;

[0042] In the figure, 10 is a production mechanical equipment, 20 is a mechanical protection door, 30 is a mechanical protection net, 40 is an electromagnetic lock, 201 is a first laser emission device, 202 is a first laser reception device, 203 is a second laser emission device, and 204 is a second laser reception device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] The terms "first", "second", "third", "fourth", etc. (if any) in the description, claims and the above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices. The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments.

[0044] Please refer to Figure 1 , which is a schematic flow diagram of a control method for a production mechanical device provided by an embodiment of this application, and specifically may include:

[0045] S110. When an operator enters or exits the mechanical protection door, based on a laser emission device and a laser reception device, perform personnel counting, where the personnel counting is implemented based on a PLC control module;

[0046] Exemplarily, in this step S110, by arranging a pair of laser emission devices and laser reception devices at the mechanical protection door, accurate detection and counting of operators can be achieved. Specifically, when an operator passes through the mechanical protection door, the laser beam is blocked by the person and reflected, and the reception device converts the reflected signal into an electrical signal and transmits it to the PLC control module for calculation, so as to identify and record the entry or exit action of the person. Due to the technical solution of using a dual emission source or multi-frequency modulation, the passage in different directions can be effectively distinguished, signal interference and misjudgment can be avoided, and the counting accuracy can be improved.

[0047] At the same time, the PLC control module undertakes the core functions of counting logic and interlock judgment. Once a laser signal is detected and the passing behavior of the person is confirmed, the PLC will increment or decrement the number of people accordingly, and combine the counting result with the subsequent door lock state or equipment start-stop logic, so as to realize an automated and precise management process. This can not only ensure strict supervision of the passage of people in the protection door area, but also lay a foundation for the safe operation of large-scale production equipment.

[0048] S120. Based on the counting result of the number of people entering and exiting and the closed state of the mechanical protection door, control the start of the production mechanical device, where the closed state is controlled based on an electromagnetic lock.

[0049] Exemplarily, in this step, the startup of the production machinery and equipment is closely related to the entry and exit of personnel and the closed state of the protective door. The PLC control module judges the number of people entering and leaving based on the aforementioned personnel counting results, and combines the closed state of the mechanical protective door to ensure the safety of equipment operation. Specifically, when the number of people entering is the same as the number of people leaving, and it is confirmed that the protective door is fully closed, the PLC control module controls the locking state of the door through the electromagnetic lock, ensuring that the startup conditions of the equipment are met, and then starts the production machinery and equipment. This control logic cross-verifies the closed state of the protective door and the personnel counting data, effectively preventing the equipment from starting when the personnel have not completely left or the door is not closed, thus avoiding potential safety hazards. The electromagnetic lock is used as a medium to ensure that the door cannot be opened randomly before the detection is completed, and this locking method can execute the equipment start-stop control with high efficiency standards.

[0050] In addition, the locking signal of the electromagnetic lock not only marks the physical state of the mechanical protective door, but also directly affects the subsequent start-stop process of the PLC. When the door locking signal matches the number of people entering and leaving, the PLC will determine that the system is in a safe startable state and send a start command to the production machinery and equipment; if the door fails to lock or the personnel counting is abnormal, the PLC will continue to prohibit the equipment from running. Through this linkage method, the production efficiency and on-site safety are effectively balanced, and mechanical injury accidents caused by improper supervision or misoperation are avoided.

[0051] In some instances, when operating personnel enter and exit the mechanical protective door, personnel counting is performed based on a laser emission device and a laser reception device, including:

[0052] When operating personnel enter the mechanical protective door, the number of people entering is incremented, including:

[0053] The PLC control module sends a trigger signal to the first laser emission device;

[0054] The first laser emission device emits a laser beam in a preset direction;

[0055] After the laser beam encounters an operating personnel in the detection area, it is reflected, and the reflected beam returns to the first laser reception device;

[0056] The first laser reception device converts the received reflected signal into an electrical signal and performs signal processing to obtain a first detection signal;

[0057] After receiving the first detection signal, a start command is sent to the second laser emission device to cause the second laser emission device to emit a laser beam in a preset direction or a direction parallel to the preset direction;

[0058] After the laser beam encounters an operator within the detection area, the reflected beam returns to the second laser receiving device;

[0059] The second laser receiving device converts the received reflected signal into an electrical signal and performs signal processing to obtain a second detection signal;

[0060] Based on the first detection signal and the second detection signal, the count of the number of people entering is increased, including:

[0061] Obtain the first timestamp of the first detection signal and the second timestamp of the second detection signal;

[0062] Based on the first timestamp and the second timestamp, determine the occurrence order of the first detection signal and the second detection signal;

[0063] Within a preset time window, based on the occurrence order, the detection direction corresponding to the first detection signal, and the detection direction corresponding to the second detection signal, determine the validity of the operator entry event;

[0064] In the case where the personnel entry event is a valid personnel entry event, increment the count of the current number of people entering.

[0065] Exemplarily, in this instance, first, the PLC control module sends a trigger signal to the first laser emitting device to make it emit a laser beam in a preset direction. When an operator passes through the access door channel, the laser beam interacts with the operator within the detection area and is reflected back to the first laser receiving device. The first laser receiving device converts the reflected signal into an electrical signal and performs preprocessing to obtain a first detection signal. Subsequently, after successfully receiving the first detection signal, the PLC control module sends a start command to the second laser emitting device to make the second laser emitting device emit a laser beam again in the same or nearly parallel direction, and the second laser receiving device converts the reflected beam into a second detection signal. By triggering the two laser emitting devices in sequence, the system can effectively confirm the movement path of the personnel and reduce missed detections or misjudgments.

[0066] After obtaining the first detection signal and the second detection signal, the PLC further extracts their timestamps and performs a sequence comparison. Combining the preset time window, the emission direction of the laser beam, and the installation position of the receiving device, it determines whether it is a valid personnel entry event. Only when the two detection signals are triggered in the correct order within a reasonable time interval, and the corresponding detection directions consistently indicate "from outside to inside", can this event be recognized as a valid entry, and accordingly, 1 is added to the personnel count. Through this dual-detection method relying on timestamp and directionality determination, the system can accurately distinguish multiple people passing through continuously or other irrelevant disturbances, and finally achieve high-precision counting of the number of operators entering, providing reliable data support for subsequent equipment interlocking and safety management.

[0067] It should be noted that the laser working principle is the same when the operator leaves as when the operator enters, so it will not be elaborated in detail.

[0068] When the operator leaves the mechanical protection door, the count decreases by the number of people leaving.

[0069] Exemplarily, when the operator leaves the mechanical protection door, the process of decreasing the count by the number of people leaving is based on the two-way detection of the laser emission device and the receiving device. First, when the operator moves from the inside to the outside of the protection door, the second laser emission device emits a laser beam in a preset direction or a direction parallel to the preset direction. When the operator passes by, the laser beam is reflected by the person and returns to the second laser receiving device, and the second receiving device converts the reflected signal into an electrical signal and performs signal processing to generate a second detection signal. After receiving the second detection signal, the PLC control module immediately sends a start command to the first laser emission device to make the first laser emission device emit a laser beam towards the outside of the door; when the laser beam interacts with the person again, the first laser receiving device converts the returned reflected light beam into an electrical signal and generates a first detection signal.

[0070] On this basis, the PLC extracts the timestamps of the first detection signal and the second detection signal, and verifies them according to the occurrence order and preset logic. Within a reasonable time window, if the order of the signals conforms to "inside to outside" and the detection directions are consistently pointed at the moving path of the person from inside to outside, the system determines this event as a valid leaving event. At this time, the PLC decrements the count value by 1 and records the event time, direction, and related information in the system log. Through this dual-detection and logic verification process, the system can accurately distinguish the leaving behavior of personnel, avoid false counting caused by staying, wandering, or signal interference, and provide a reliable guarantee for the safety management of the production site.

[0071] In some instances, based on the counting results of the number of people entering and leaving and the closed state of the mechanical protection door, the start of the production machinery and equipment is controlled, including:

[0072] When the PLC control module detects that the number of people entering is the same as the number of people leaving, it controls the electromagnetic lock to lock the mechanical protection door and starts the operation of the production machinery and equipment.

[0073] Exemplarily, the start control of the production machinery and equipment is based on the linkage mechanism of the personnel counting results and the closed state of the mechanical protection door. The PLC control module continuously obtains the counting results of the number of people entering and leaving and compares the two. When it detects that the number of people entering is the same as the number of people leaving and confirms that there are no people in the protection door area, the PLC module sends a control signal to the electromagnetic lock to trigger the locking operation of the mechanical protection door. At this time, the status signal of the electromagnetic lock will be fed back to the PLC to further verify whether the mechanical protection door has been completely locked.

[0074] After ensuring that there is no one in the protective door area and the door is in a safe locked state, the PLC control module sends a start command to the production machinery and equipment to put the equipment into operation. Through this process, the system effectively prevents the risk of equipment starting up by mistake when the mechanical protective door is not completely locked or there are still people in the protective area, avoiding possible personal injury or equipment damage. In addition, this design can ensure that the start-up conditions of the mechanical equipment strictly depend on the real-time status of the on-site environment, greatly improving the safety and reliability of equipment operation and providing intelligent safety protection for production operations.

[0075] In some examples, it also includes:

[0076] The first laser emitting device and the second laser emitting device use different frequencies or modulation modes to distinguish people entering and exiting from different directions.

[0077] Exemplarily, in order to accurately distinguish people entering and leaving from different directions, the first laser emitting device and the second laser emitting device use different frequencies or modulation methods. Specifically, laser signals of different frequencies or modulation methods can ensure that the signal generated by each emitting device has unique characteristics, for example, the first laser emitting device uses a laser wavelength of 850nm, the second laser emitting device uses a laser wavelength of 950nm, or pulse modulation is used to give each signal different coding characteristics. Such a design enables the receiving device to accurately identify the source of the signal through filtering or demodulation, thereby effectively distinguishing whether the signal is generated by the first laser or the second laser emitting device.

[0078] By using different frequencies or modulation methods, not only can signal interference be avoided, but also the direction of entry and exit of personnel can be accurately determined. For example, when the system receives the first laser signal and then the second laser signal, it can be determined as an entry event "from outside to inside" by combining the timestamp and the signal source; if the signal reception order is reversed, it can be determined as an exit event "from inside to outside". This mechanism further improves the detection accuracy of the system and the reliability of direction judgment, while enhancing the anti-interference ability of the equipment in complex environments, ensuring the accuracy of personnel counting and direction judgment.

[0079] In some examples, the production machinery and equipment further includes a machinery protection net, which is used to prevent workers or objects from getting stuck in the protection door structure.

[0080] Exemplarily, a mechanical protection net is provided for the production machinery and equipment, aiming to prevent operators or other objects from accidentally getting stuck in the structural area of the protection door. The mechanical protection net is usually installed at key positions of the door frame of the mechanical protection door or its surrounding structure. Its design purpose is to provide an additional physical isolation barrier during the opening and closing process of the mechanical protection door, avoiding safety hazards such as pinching and collision caused by personnel straying or objects accidentally intruding during the operation of the protection door.

[0081] In addition, the mechanical protection net can also effectively prevent smaller objects (such as tools, parts, etc.) from falling or slipping into the track or closing area of the mechanical protection door, thereby avoiding the situation where the protection door cannot be closed normally due to foreign object jamming. Through this design, the production machinery and equipment not only improve the safety of the operation area, but also reduce the operation failures of the equipment caused by jamming problems, thus improving the overall reliability and service life of the equipment. The setting of the mechanical protection net further strengthens the role of the protection door as a key link in the safety management of the production site, providing a more comprehensive safety guarantee for the production environment.

[0082] It should be noted that in the embodiments of the present application, the width of the mechanical protection door can only allow one person to pass through at the same time, and there is no situation of side-by-side passage;

[0083] Exemplarily, due to the requirements of the actual production environment, the width of the mechanical protection door is relatively narrow, only allowing one person to pass through at the same time, and there is no situation of multiple people passing through. This production condition provides advantages for the operation of the personnel counting system, making the detection of the laser emission and reception device more concise and clear. Since only one person will trigger the laser signal on the passage path each time, it is possible to effectively avoid signal aliasing or interference problems caused by multiple people walking together, ensuring the accuracy of counting and the reliability of direction determination.

[0084] In addition, this actual condition of narrow door width can enhance the monitoring efficiency of the system for the entry and exit behavior of personnel. Combining the sequentiality of the laser detection signal and the time window logic, the PLC control module can more accurately judge the entry and exit paths and passing states of personnel without considering the complex situation of multiple people passing through at the same time. The combination of this actual production condition and the counting logic provides more reliable data support for safety management and equipment linkage, further reducing the operation risks caused by counting errors.

[0085] In some embodiments, Figure 2 is a schematic structural diagram of the production machinery and equipment provided by the embodiments of the present application, Figure 3 is Figure 2 a partial enlarged structural diagram of the mechanical protection door in Figure 2 and Figure 3 As shown, the production machinery and equipment 10 further includes:

[0086] Mechanical protection door 20, mechanical protection net 30, electromagnetic lock 40, first laser emission device 201, first laser reception device 202, second laser emission device 203, second laser reception device 204.

[0087] Exemplarily, the production mechanical equipment 10 provided in this embodiment includes multiple key components for realizing the safe interlock control of personnel counting and equipment operation. The production mechanical equipment 10 is isolated from the outside through the mechanical protection door 20, and the mechanical protection net 30 is combined to provide additional physical protection to prevent operators or foreign objects from entering the dangerous area during equipment operation. The first laser emission device 201 and the second laser emission device 203 are arranged on the left side of the mechanical protection door 20 and are respectively used to emit laser beams in a preset direction. The corresponding first laser reception device 202 and second laser reception device 204 are arranged on the right side of the mechanical protection door 20 and are used to receive the reflected signals of the laser beams. By the sequentiality of personnel blocking the laser beam and the signal reflection path, the real-time detection and direction judgment of personnel entering and leaving events can be realized. The first laser emission device 201 and the second laser emission device 203 adopt different frequencies or modulation methods and cooperate with the corresponding reception devices, which can effectively avoid signal confusion and further improve the detection accuracy. The electromagnetic lock 40 is installed between the mechanical protection door 20 and the door frame and is used to lock the mechanical protection door 20 after the counting logic verification passes, ensuring that the equipment starts in a safe state. The mechanical protection net 30 is installed around the mechanical protection door 20 and is mainly used to block small objects from entering the working area of the mechanical protection door 20, thereby avoiding interfering with laser detection or jamming the closed state of the mechanical protection door 20. Through the coordinated operation of the above devices, the overall design of the production mechanical equipment 10 can realize high-precision counting of personnel entering and leaving and the safe interlock operation of the equipment, effectively improving the safety and reliability of the operation.

[0088] Please refer to Figure 4 , which is a schematic structural diagram of a control device for a production mechanical equipment provided in an embodiment of the present application, including:

[0089] A personnel counting unit 21, which is used to perform personnel counting based on a laser emission device and a laser reception device when an operator enters and leaves the mechanical protection door. Among them, the personnel counting is realized based on a PLC control module;

[0090] An equipment start unit 22, which is used to control the start of the production mechanical equipment based on the counting result of the number of people entering and leaving and the closed state of the mechanical protection door. Among them, the closed state is controlled based on an electromagnetic lock.

[0091] Please refer to Figure 5, Embodiment of the present application further provides an electronic device 300, including a memory 310, a processor 320, and a computer program 311 stored on the memory 310 and executable on the processor. When the processor 320 executes the computer program 311, it implements the steps of any of the methods for controlling a production mechanical device described above.

[0092] Since the electronic device introduced in this embodiment is the device adopted by the control device for a production mechanical device in the embodiment of the present application, based on the method introduced in the embodiment of the present application, those skilled in the art can understand the specific implementation manners and various variations of the electronic device in this embodiment. Therefore, the specific implementation of how this electronic device implements the method in the embodiment of the present application will not be described in detail here. As long as the device adopted by those skilled in the art to implement the method in the embodiment of the present application belongs to the scope protected by the present application.

[0093] In the specific implementation process, when the computer program 311 is executed by the processor, it can implement any implementation manner in the corresponding embodiment of the first aspect.

[0094] It should be noted that in the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0095] Those skilled in the art should understand that the embodiments of the present application can provide a method, a system, or a computer program product. Therefore, the present application adopts the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application adopts the form of a computer program product implemented on one or more computer-readable storage media containing computer-readable program code.

[0096] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams can be implemented by computer program instructions, and the combination of flows and / or blocks in the flowcharts and / or block diagrams can also be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded computer, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0097] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce a manufacture including an instruction device that implements the functions specified in one or more of the acts Figure 1 and / or boxes Figure 1 specified in one or more of the acts and / or boxes.

[0098] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, so that the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one or more of the acts Figure 1 and / or boxes Figure 1 specified in one or more of the acts and / or boxes.

[0099] The embodiments of the present application also provide a computer program product, which includes computer software instructions. When the computer software instructions run on a processing device, the processing device is caused to execute Figure 1 the process of a control method for a production mechanical device in the corresponding embodiment.

[0100] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present application are all or partially generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired or wireless manner. The computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server or a data center integrating one or more available media. The available medium may be a magnetic medium, an optical medium, or a semiconductor medium, etc.

[0101] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, apparatuses, and units described above may refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0102] In several embodiments provided by the present application, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces, and the indirect coupling or communication connection of devices or units can be in electrical, mechanical, or other forms.

[0103] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0104] In addition, each functional unit in various embodiments of the present application can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0105] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in various embodiments of the present application. The aforementioned storage medium includes: USB flash drives, mobile hard disks, read-only memories, random access memories, magnetic disks, or optical disks, etc., which can store program codes.

[0106] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of various embodiments of the present application.

[0107] Although the preferred embodiments of the present specification have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concepts. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications that fall within the scope of this specification.

[0108] Obviously, those skilled in the art can make various changes and deformations to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and deformations of this specification fall within the scope of the claims of this specification and their equivalent technologies, this specification is also intended to include these modifications and deformations.

Claims

1. A control method for production machinery and equipment, characterized in that: The production machinery and equipment includes a mechanical protection door, a laser emitting device, a laser receiving device, an electromagnetic lock and a PLC control module, wherein the laser emitting device includes a first laser emitting device and a second laser emitting device, and the laser receiving device includes a first laser receiving device and a second laser receiving device. The control method of the production machinery and equipment includes: When a worker enters or exits the mechanical protection door, the worker counting is performed based on the laser emitting device and the laser receiving device, wherein the worker counting is implemented based on the PLC control module; Based on the counting result of the number of people entering and exiting and the closed state of the mechanical protection door, the startup of the production machinery and equipment is controlled, wherein the closed state is controlled based on the electromagnetic lock.

2. The method according to claim 1, characterized in that When the operator enters or exits the mechanical protection door, counting the operator based on the laser emitting device and the laser receiving device includes: When an operator enters the mechanical protection door, the number of people entering is counted; When an operator leaves the mechanical protection door, the number of people leaving is counted.

3. The method according to claim 2, characterized in that When the operator enters the mechanical protection door, the number of people entering is counted, including: The PLC control module sends a trigger signal to the first laser emitting device; The first laser emitting device emits a laser beam in a preset direction; After the laser beam encounters the operator in the detection area, it is reflected, and the reflected light beam returns to the first laser receiving device; The first laser receiving device converts the received reflected signal into an electrical signal and performs signal processing to obtain a first detection signal; After receiving the first detection signal, sending a start command to the second laser emitting device, so that the second laser emitting device emits a laser beam in the preset direction or in a direction parallel to the preset direction; The laser beam is reflected after encountering the operator in the detection area, and the reflected light beam returns to the second laser receiving device; The second laser receiving device converts the received reflected signal into an electrical signal and performs signal processing to obtain a second detection signal; Based on the first detection signal and the second detection signal, the number of people entering is counted.

4. The method according to claim 3, characterized in that The counting and increasing of the number of people entering based on the first detection signal and the second detection signal comprises: Acquire a first timestamp of the first detection signal and a second timestamp of the second detection signal; Determine, based on the first timestamp and the second timestamp, an occurrence order of the first detection signal and the second detection signal; Determining the validity of the operator entry event within a preset time window based on the occurrence sequence, the detection direction corresponding to the first detection signal, and the detection direction corresponding to the second detection signal; In the case where the personnel entry event is a valid personnel entry event, the current number of people entering is counted.

5. The method according to claim 1, characterized in that The method of controlling the start-up of the production machinery and equipment based on the counting result of the number of people entering and exiting and the closed state of the machinery protection door comprises: When the PLC control module detects that the number of people entering is the same as the number of people leaving, it controls the electromagnetic lock to lock the mechanical protection door and starts the operation of the production machinery and equipment.

6. The method according to claim 1, characterized in that Also includes: The first laser emitting device and the second laser emitting device use different frequencies or modulation modes to distinguish people entering and exiting from different directions.

7. The method according to claim 1, characterized in that The production machinery and equipment also includes a mechanical protection net, which is used to prevent the operator or object from getting stuck in the protection door structure.

8. A control device for production machinery and equipment, characterized in that: The production machinery and equipment includes a mechanical protection door, a laser emitting device, a laser receiving device, an electromagnetic lock and a PLC control module, wherein the laser emitting device includes a first laser emitting device and a second laser emitting device, the laser receiving device includes a first laser receiving device and a second laser receiving device, and the control device of the production machinery and equipment includes: A personnel counting unit, used for counting personnel based on the laser emitting device and the laser receiving device when the operating personnel enter or exit the mechanical protection door, wherein the personnel counting is implemented based on the PLC control module; The equipment starting unit is used to control the starting of the production machinery equipment based on the counting result of the number of people entering and exiting and the closing state of the mechanical protection door, wherein the closing state is controlled based on the electromagnetic lock.

9. An electronic device, comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor is used to implement the steps of the control method for production machinery equipment as described in any one of claims 1 to 7 when executing the computer program stored in the memory.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the control method of the production machinery equipment according to any one of claims 1 to 7 is implemented.

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