Remote control system of factory public equipment

Abstract

The utility model relates to the field of equipment control, in particular to a remote control system for factory public equipment, which comprises a user side, an industrial control server, an industrial control unit and the factory public equipment, and is characterized in that the user side is in communication connection with the industrial control server based on a local area network of a factory, and the factory public equipment comprises to-be-controlled frequency conversion equipment and to-be-controlled mechanical equipment; the user side is provided with an equipment control interface for generating a first equipment control signal; the equipment control interface is used for displaying mechanical equipment control information and mechanical equipment state information corresponding to the to-be-controlled mechanical equipment, and frequency conversion equipment adjustment information and frequency conversion equipment state information corresponding to the to-be-controlled frequency conversion equipment; a signal acquisition module, a signal conversion module and a signal sending module are configured in the industrial control server; the industrial control unit is in signal connection with the factory public equipment and is used for remotely controlling the factory public equipment according to the signal sent by the industrial control server; equipment calling and monitoring are achieved through the local area network of the workshop, the system building mode is simple and easy to achieve, and the cost is low.

Description

Technical Field

[0001] The present application relates to the field of equipment control, and in particular to a remote control system for factory common equipment. Background Art

[0002] Common factory equipment, such as water pumps in the circulating water system and fans shared by multiple workshops, all require remote control and multiple control points. Most of the current implementation methods for this requirement are still cumbersome and costly. For example, if multiple workshops in a factory need to jointly control the same water pump, a power distribution cabinet needs to be set up in each workshop, and lines need to be laid to connect the pump and the power distribution cabinet. The factory environment is complex and the distance between workshops is far, so trenching and bridging are often required for laying lines, and the cost of wiring construction is high. Utility Model Content

[0003] The purpose of the present application is to provide a remote control system for factory common equipment, aiming to solve the technical problem that the existing technology of realizing multi-point and remote control of factory common equipment is cumbersome and costly.

[0004] To achieve this purpose, the technical solution adopted in this application is: to provide a remote control system for factory common equipment, including a user terminal, an industrial control server, an industrial control unit and factory common equipment, the user terminal and the industrial control server are connected based on the factory's local area network communication, the factory common equipment includes a frequency conversion device to be controlled and a mechanical device to be controlled that is connected to the frequency conversion device to be controlled by signal; the user terminal has a device control interface for generating a first device control signal; the device control interface is used to display mechanical equipment control information and mechanical equipment status information corresponding to the mechanical equipment to be controlled, as well as frequency conversion equipment adjustment information and frequency conversion equipment status information corresponding to the frequency conversion device to be controlled; wherein the mechanical equipment control information includes an equipment identification, an equipment start button and an equipment close button; the The frequency conversion equipment adjustment information includes a frequency value setting box and a frequency change confirmation button; the industrial control server is configured with a signal acquisition module, a signal conversion module and a signal sending module; the signal acquisition module is used to obtain the first device control signal generated by the user end, and send the first device control signal to the signal conversion module; the signal conversion module is used to perform protocol conversion on the first device control signal to obtain a second device control signal, and send the second device control signal to the signal sending module; the signal sending module is used to send the second device control signal to the industrial control unit; the industrial control unit is connected to the factory common equipment signal and is used to remotely control the factory common equipment according to the second device control signal.

[0005] Furthermore, the signal acquisition modules of the user terminal and the industrial control server are both configured with Winsock controls.

[0006] Furthermore, the user terminal is used to send an information collection signal to the industrial control server at a first frequency; the industrial control server is also configured with a signal monitoring module, an information collection module and a first signal feedback module, and the signal monitoring module is connected to the information collection module signal; the signal monitoring module is used to monitor the information collection signal sent by the user terminal at a second frequency, and the information collection module is used to send a status acquisition signal to the industrial control unit when the signal monitoring module monitors the information collection signal sent by the user terminal; the industrial control unit is also used to obtain the current status information of the factory public equipment according to the status acquisition signal, and send a first status feedback signal to the information collection module of the industrial control server; the first status feedback signal carries the factory public equipment the information acquisition module and the first signal feedback module of the industrial control server are respectively connected with the signal conversion module by signal; the information acquisition module is also used to send the first state feedback signal to the signal conversion module, and the signal conversion module is also used to perform protocol conversion on the first state feedback signal to obtain a second state feedback signal, and send the second state feedback signal to the first signal feedback module; the first signal feedback module is used to return the second state feedback signal to the user end; the user end is also used to obtain the current state information of the factory public equipment according to the second state feedback signal, and update the mechanical equipment state information and the frequency conversion equipment state information displayed on the equipment control interface according to the current state information.

[0007] Furthermore, the device control interface of the user terminal can also display a communication status identifier for characterizing the communication status between the user terminal and the industrial control server; the industrial control server is also configured with a second signal feedback module, which is signal-connected to the signal monitoring module and is used to send a communication status feedback signal to the user terminal when the signal monitoring module monitors the information collection signal sent by the user terminal; the user terminal is also used to update the communication status identifier displayed on its device control interface according to the communication status feedback signal.

[0008] Furthermore, the mechanical equipment status information includes an equipment status indication graphic; the equipment status indication graphic has a first color for indicating that the current working status of the mechanical equipment to be controlled is in a first state, and a second color for indicating that the current working status of the mechanical equipment to be controlled is in a second state.

[0009] Furthermore, the device status indication graphic also has a third color for indicating that the communication connection between the user terminal and the industrial control server is abnormal.

[0010] Furthermore, the signal conversion module of the industrial control server is used to perform protocol conversion on the signal in the local memory of the industrial control server.

[0011] Furthermore, one of the industrial control servers is signal-connected to a plurality of the user terminals respectively.

[0012] Furthermore, one of the industrial control servers is signal-connected to a plurality of the industrial control units respectively.

[0013] Furthermore, one of the industrial control units is signal-connected to a plurality of the industrial control servers respectively.

[0014] Furthermore, one of the industrial control units is signal-connected to a plurality of the factory common devices.

[0015] Furthermore, the local area network is an industrial control local area network.

[0016] Furthermore, the mechanical equipment to be controlled is a water pump or a fan.

[0017] The beneficial effect of the remote control system for factory common equipment provided by the present application is that: compared with the prior art, the remote control system for factory common equipment proposed in the present application includes a user terminal, an industrial control server, an industrial control unit and factory common equipment. The user terminal and the industrial control server are connected based on the factory's local area network communication, that is, the factory common equipment control system, such as the water pump start and stop control system, is optimized from a hardware control system that relies on circuits to a software control system based on signal transmission, and the signal is transmitted by the workshop's own local area network. The system construction method is simple, easy to implement, and cost-saving; at the same time, through the reasonable design of the user-side equipment control interface, it is convenient for operators to monitor and control the factory common equipment.

[0018] Other advantages of the present application and the technical effects of the preferred embodiments will be further described in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1This is a schematic diagram of the structure of the remote control system for factory public equipment provided in the embodiment of the present application. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the remote control system for factory public equipment provided in the embodiment of the present application. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the structure of the remote control system for factory public equipment provided in the embodiment of the present application. Figure 3 ;

[0023] Figure 4 It is an interface diagram of the device control interface provided in the embodiment of the present application.

[0024] Among them, 301, signal acquisition module; 302, signal conversion module; 303, signal sending module; 304, information collection module; 305, first signal feedback module; 306, signal monitoring module; 307, second signal feedback module; 401, device identification; 402, device start button; 403, device shutdown button; 404, frequency value setting box; 405, frequency change confirmation button; 406, communication status identification; 407, device status indication graphic; 408, frequency conversion device status information. DETAILED DESCRIPTION

[0025] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0027] In addition, in the description of the present application, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0028] like Figures 1 to 4 The figure shows a preferred embodiment provided by the present application.

[0029] The present application provides a remote control system for factory common equipment, which can be used in factories with local area networks or industrial control local area networks (referred to as industrial control networks); the system may specifically include a user end, an industrial control server, an industrial control unit (also known as an industrial control unit or a programmable logic controller, i.e., Programmable Logic Controller, PLC) and factory common equipment. The user end and the industrial control server are connected based on the factory's local area network communication. The factory common equipment includes a frequency conversion device to be controlled (which may be a frequency converter) and a mechanical device to be controlled that is signal-connected to the frequency conversion device to be controlled; the mechanical device to be controlled may be a water pump, a fan, etc., and may be specifically configured according to the actual needs of the factory. The frequency conversion device to be controlled is an electric power control device that can be used to control the motor state of the mechanical device to be controlled, and the start and stop of the mechanical device to be controlled and other actions can be controlled by the frequency conversion device to be controlled.

[0030] The user end can be a computer, mobile phone, tablet or other wearable device, as long as it has a device control interface for generating a first device control signal, the user can generate the first device control signal through the device control interface, and the first device control signal can be understood as an input signal for remote control of the factory common equipment. Among them, the device control interface is used to display the mechanical equipment control information and mechanical equipment status information corresponding to the mechanical equipment to be controlled, and the variable frequency equipment adjustment information and variable frequency equipment status information 408 corresponding to the variable frequency equipment to be controlled; further, the mechanical equipment control information can be understood as information integration that facilitates the control of the mechanical equipment, which can specifically include the device identification 401, the device start button 402, and the device close button 403. For details, please refer to Figure 4 The frequency conversion device adjustment information can be understood as an information integration that facilitates the adjustment of the frequency conversion device, and may include a frequency value setting box 404 and a frequency change confirmation button 405, which can be continued to refer to Figure 4 The user can realize the efficient control of the mechanical equipment to be controlled and the frequency conversion equipment to be controlled through the mechanical equipment control information and the frequency conversion equipment adjustment information, which is convenient for novice operators to remotely control the mechanical equipment to be controlled and the frequency conversion equipment to be controlled.

[0031] At the same time, the industrial control server is configured with a signal acquisition module 301, a signal conversion module 302 and a signal sending module 303; the signal acquisition module 301 is used to acquire the first device control signal generated by the user end, and send the first device control signal to the signal conversion module 302, wherein the way of acquiring the signal can be through active acquisition or passive reception, which is not limited here; the signal conversion module 302 is used to convert the first device control signal into a protocol to obtain a second device control signal, and send the second device control signal to the signal sending module 303; it should be noted that the OPC communication protocol can be used between the industrial control server and the industrial control unit (PLC), and the signal conversion module 302 can be used to convert the TCP signal into an operation signal and store it in the local memory of the industrial control server first, and then convert the local signal of the industrial control server into an OPC signal and transmit it to the PLC, and then the switch on the PLC changes the frequency of the inverter and controls the start and stop of the device. In addition, the signal sending module 303 can be used to send the second device control signal to the industrial control unit; the industrial control unit is connected to the factory common equipment signal and is used to remotely control the factory common equipment according to the second equipment control signal. For the specific information feedback process and the system modules involved, please refer to the red solid line in 3. By optimizing the factory common equipment control system, such as the water pump start-stop control system, from a hardware control system that relies on circuits to a software control system based on signal transmission, and using the workshop's own local area network to transmit signals, the system construction method is simple, easy to implement, and low-cost.

[0032] In one embodiment, the signal acquisition module 301 of the user end and the industrial control server are both configured with Winsock controls to establish a winsock connection between the client and the server; of course, the two can also use other communication controls to establish a network communication connection. Specifically, the user end can use the winsock communication plug-in to complete the LAN TCP communication, and send information to the controlled server through winsock at a regular interval, that is, the user end can be used to send an information collection signal to the industrial control server through winsock at a first frequency. The information collection signal can be understood as a signal sent by the user end to the industrial control server for collecting the current status information of the mechanical equipment to be controlled and the variable frequency equipment to be controlled, which can be a TCP protocol signal. The first frequency can be 0.05 to 2 Hz, preferably 0.1 Hz, that is, once per second, which is not a unique limitation here.

[0033] Furthermore, the industrial control server may also be configured with a signal monitoring module 306, an information collection module 304, and a first signal feedback module 305, wherein the signal monitoring module 306 is connected to the information collection module 304 by signal; the signal monitoring module 306 may be used to monitor the information collection signal sent by the user end at a second frequency; the second frequency may be 0.05 to 2 Hz, preferably 0.1 Hz, i.e. once per second, which is not limited here. The information collection module 304 may be used to send a status acquisition signal to the industrial control unit when the signal monitoring module 306 monitors the information collection signal sent by the user end, and the status acquisition signal may be obtained through protocol conversion of the information collection signal, or may be an OPC protocol signal newly generated through the information collection signal; the status acquisition signal may be understood as a signal sent by the industrial control server to the industrial control unit for collecting the current status information of the mechanical equipment to be controlled and the frequency conversion equipment to be controlled, and may be an OPC protocol signal.

[0034] Furthermore, the industrial control unit can also be used to obtain the current state information of the factory common equipment (the frequency conversion equipment to be controlled and / or the mechanical equipment to be controlled) according to the above-mentioned state acquisition signal, and send a first state feedback signal to the information acquisition module 304 of the industrial control server; the first state feedback signal carries the above-mentioned current state information of the factory common equipment; the information acquisition module 304 and the first signal feedback module 305 of the industrial control server are respectively connected to the signal conversion module 302 by signal; the information acquisition module 304 is also used to send the first state feedback signal to the signal conversion module 302, and the signal conversion module 302 is also used to perform protocol conversion on the first state feedback signal to obtain a second state feedback signal, and send the second state feedback signal to the first signal feedback module 305; the first signal feedback module 305 is used to return the second state feedback signal to the user end; the user end is also used to obtain the current state information of the factory common equipment (such as the frequency converter status code and / or the water pump motor status code, etc.) according to the second state feedback signal, and update the mechanical equipment state information and the frequency conversion equipment state information 408 displayed on the equipment control interface according to the current state information. For the specific information feedback process and the system modules involved, please refer to the black dotted line in 3.

[0035] As a preferred implementation, the device control interface of the user end can also display a communication status mark 406 for characterizing the communication status between the user end and the industrial control server; the industrial control server is also configured with a second signal feedback module 307, which is connected to the signal monitoring module 306 by signal, and is used to send a communication status feedback signal to the user end when the signal monitoring module 306 monitors the information collection signal sent by the user end; the feedback frequency can also be 0.01 to 2 Hz, which can be set according to actual conditions. The user end is also used to update the communication status mark 406 displayed on its device control interface according to the communication status feedback signal. For the specific information feedback process and the system modules involved, please refer to the green solid line mark in 3.

[0036] For further information, see Figure 4 , the mechanical equipment status information includes a device status indication graphic 407; the device status indication graphic 407 has a first color for indicating that the current working state of the mechanical equipment to be controlled is in a first state, and a second color for indicating that the current working state of the mechanical equipment to be controlled is in a second state. Furthermore, the device status indication graphic 407 also has a third color for indicating that the communication connection between the user end and the industrial control server is abnormal. The specific color and shape of the above-mentioned device status indication graphic 407 are not limited to the only one. For example, the mechanical equipment to be controlled is a water pump. When the current working state of the water pump is in the on state, the device status indication graphic 407 displays green; when the current working state of the water pump is in the off state, the device status indication graphic 407 displays red; when the user end and the industrial control server are not successfully connected, the state of the water pump cannot be known. At this time, the device status indication graphic 407 can be displayed in white. In this way, the operator can intuitively monitor the current working state of the mechanical equipment to be controlled.

[0037] Optionally, the signal conversion module 302 of the industrial control server is used to perform protocol conversion on the signal in the local memory of the industrial control server. Performing signal protocol conversion in the local memory can effectively ensure the response speed and security of signal processing, and facilitate data storage and offline use.

[0038] In one embodiment of the present application, see Figure 1 , an industrial control server is respectively connected to multiple user end signals, so that multiple users in different workshops can communicate with an industrial control server at the same time. In one embodiment of the present application, please continue to refer to Figure 1 , an industrial control server is respectively connected to multiple industrial control units by signal, so that an industrial control server can control multiple devices simultaneously and at multiple points. In one embodiment of the present application, please refer to Figure 2, an industrial control unit is connected to multiple industrial control servers by signal, ensuring that multiple industrial control servers in different locations have the function of controlling the same device at the same time, facilitating remote control of the device. In one embodiment of the present application, an industrial control unit is connected to multiple factory common equipment signals (not shown), that is, one control is achieved, reducing the number of industrial control units and thus reducing costs. In addition, a frequency conversion device can be used to control multiple mechanical devices to be controlled, such as Figure 4 As shown (two controls one), the number of devices is optimized and costs are reduced.

[0039] This application uses the local area network widely distributed between factory workshops to transmit the communication signal of the control equipment. The user end sends the control signal, and the industrial control server closest to the controlled equipment can receive the signal and convert it into the execution signal of the frequency converter and the motor, and use the industrial control unit connected to the industrial control server to control the equipment to start and stop and other actions. The technical solution proposed in this application enables any point in the factory local area network to receive the signal and transmit it to the industrial control unit corresponding to the equipment, and then convert it into the equipment execution signal. This application saves the cost of laying lines for public equipment that needs multi-point and remote control, uses communication technology instead of direct wiring, realizes remote control, dual control and multi-point control of factory public equipment, and effectively reduces the cost of building multi-point remote control public equipment.

[0040] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation methods of the present application. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application should be included in the protection scope of the claims of the present application.

Claims

1. A remote control system for factory public equipment, characterized in that: It includes a user terminal, an industrial control server, an industrial control unit and factory public equipment. The user terminal and the industrial control server are connected to each other based on the factory's local area network. The factory public equipment includes a frequency conversion device to be controlled and a mechanical device to be controlled that is signal-connected to the frequency conversion device to be controlled. The user terminal has a device control interface for generating a first device control signal; The device control interface is used to display the mechanical device control information and mechanical device status information corresponding to the mechanical device to be controlled, as well as the frequency conversion device adjustment information and frequency conversion device status information corresponding to the frequency conversion device to be controlled; wherein the mechanical device control information includes a device identification, a device start button, and a device close button; the frequency conversion device adjustment information includes a frequency value setting box and a frequency change confirmation button; The industrial control server is configured with a signal acquisition module, a signal conversion module, and a signal sending module; the signal acquisition module is used to acquire the first device control signal generated by the user terminal and send the first device control signal to the signal conversion module; the signal conversion module is used to perform protocol conversion on the first device control signal to obtain a second device control signal, and send the second device control signal to the signal sending module; the signal sending module is used to send the second device control signal to the industrial control unit; The industrial control unit is connected to the factory common equipment signal and is used to remotely control the factory common equipment according to the second equipment control signal.

2. The remote control system for factory common equipment according to claim 1, characterized in that: The signal acquisition modules of the user terminal and the industrial control server are both configured with Winsock controls.

3. The remote control system for factory common equipment according to claim 2, characterized in that: The user terminal is used to send an information collection signal to the industrial control server at a first frequency; The industrial control server is further configured with a signal monitoring module, an information collection module, and a first signal feedback module. The signal monitoring module is signal-connected to the information collection module; the signal monitoring module is used to monitor the information collection signal sent by the user terminal at a second frequency, and the information collection module is used to send a status acquisition signal to the industrial control unit when the signal monitoring module monitors the information collection signal sent by the user terminal; The industrial control unit is further configured to obtain current status information of the factory common equipment according to the status acquisition signal, and send a first status feedback signal to the information acquisition module of the industrial control server; the first status feedback signal carries the current status information of the factory common equipment; The information acquisition module and the first signal feedback module of the industrial control server are respectively connected to the signal conversion module by signal; the information acquisition module is further used to send the first state feedback signal to the signal conversion module, and the signal conversion module is further used to perform protocol conversion on the first state feedback signal to obtain a second state feedback signal, and send the second state feedback signal to the first signal feedback module; the first signal feedback module is used to return the second state feedback signal to the user end; The user terminal is further configured to obtain the current status information of the factory common equipment according to the second status feedback signal, and update the mechanical equipment status information and the frequency conversion equipment status information displayed on the equipment control interface according to the current status information.

4. The remote control system for factory common equipment according to claim 3, characterized in that: The device control interface of the user terminal may further display a communication status indicator for indicating the communication status between the user terminal and the industrial control server; The industrial control server is further configured with a second signal feedback module, which is signal-connected to the signal monitoring module and is used to send a communication status feedback signal to the user terminal when the signal monitoring module monitors the information collection signal sent by the user terminal; The user terminal is further configured to update the communication status indicator displayed on its device control interface according to the communication status feedback signal.

5. The remote control system for factory common equipment according to any one of claims 1 to 4, characterized in that: The mechanical equipment status information includes an equipment status indication graphic; the equipment status indication graphic has a first color for indicating that the current working status of the mechanical equipment to be controlled is in a first state, and a second color for indicating that the current working status of the mechanical equipment to be controlled is in a second state.

6. The remote control system for factory common equipment according to claim 5, characterized in that: The device status indication graphic further has a third color for indicating an abnormal communication connection between the user terminal and the industrial control server.

7. The remote control system for factory common equipment according to any one of claims 1 to 4, characterized in that: The signal conversion module of the industrial control server is used to perform protocol conversion on the signal in the local memory of the industrial control server.

8. The remote control system for factory common equipment according to any one of claims 1 to 4, characterized in that: One of the industrial control servers is signal-connected to a plurality of the user terminals; and / or, One of the industrial control servers is signal-connected to a plurality of the industrial control units; and / or, One of the industrial control units is signal-connected to a plurality of the industrial control servers; and / or, One industrial control unit is signal-connected to a plurality of factory common devices.

9. The remote control system for factory common equipment according to any one of claims 1 to 4, characterized in that: The local area network is an industrial control local area network.

10. The remote control system for factory public equipment according to any one of claims 1 to 4, characterized in that: The mechanical equipment to be controlled is a water pump or a fan.

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