Air compressor control system and air compressor

Abstract

The invention discloses an air compressor control system and an air compressor. The system comprises a PLC control module, a touch screen module, a bearing controller, a frequency converter and a multi-interface type gateway. The PLC control module is used for collecting operation parameters of the air compressor and analyzing and controlling the operation state of the air compressor according to the parameters. The multi-interface type gateway is in communication connection with the bearing controller and the frequency converter. The bearing controller is used for collecting operation parameters of a bearing of the air compressor and transmitting the operation parameters to the touch screen module through the multi-interface type gateway. The frequency converter is used for adjusting the rotating speed of a motor of the air compressor and transmitting operation parameters of the motor to the touch screen module through the multi-interface type gateway. The touch screen module is used for displaying operation parameters of the air compressor, the bearing and the motor and receiving operation instructions of operators at the same time. According to the scheme, comprehensive perception of the system state is realized, the equipment management level is improved, the system can quickly respond to faults, fault expansion is avoided, and the reliability of the system is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of air compressor control, and in particular relates to an air compressor control system and an air compressor. Background Art

[0002] Compressed air, as one of the industrial energy sources, is widely used in many industries, and air compressors are important general-purpose machines. At the same time, Internet of Things technology has gradually penetrated the field of industrial control, and air compressor control systems based on the Internet of Things have become an important development direction. Relevant solutions have been disclosed for air compressor Internet of Things control systems, but these systems have problems such as poor equipment management and untimely fault response, which can easily lead to the expansion of faults and affect system reliability.

[0003] The above content is only used to assist in understanding the technical solution of the present invention and does not constitute an admission that the above content is prior art. Summary of the Invention

[0004] The purpose of the present invention is to provide an air compressor control system and an air compressor to solve the problems in related solutions such as poor equipment management level of the air compressor control system, insufficient fault response, easy expansion of faults, and impact on system reliability. The present invention achieves comprehensive perception of the system status through the collaborative work of the PLC control module, touch screen module, bearing controller, frequency converter and multi-interface type gateway, thereby improving the equipment management level. At the same time, centralized monitoring enables abnormal parameters to be discovered in a timely manner, so that the system can respond to faults quickly, avoid fault expansion, and improve the reliability of the system.

[0005] The present invention provides an air compressor control system, comprising: a PLC control module, a touch screen module, a bearing controller, a frequency converter, and a multi-interface type gateway; the PLC control module is used to collect the operating parameters of the air compressor, and analyze and control the operating status of the air compressor according to the operating parameters of the air compressor; the multi-interface type gateway is communicatively connected to the bearing controller and the frequency converter, respectively; the bearing controller is used to collect the operating parameters of the bearings of the air compressor in real time, and transmit them to the touch screen module through the multi-interface type gateway; the frequency converter is used to adjust the speed of the motor of the air compressor, and transmit the operating parameters of the motor to the touch screen module through the multi-interface type gateway; the touch screen module is used to display the operating parameters of the air compressor, the operating parameters of the bearing, and the operating parameters of the motor, and at the same time receive operating instructions from the operator.

[0006] In some embodiments, the PLC control module and the touch screen module can be connected via a Modbus communication protocol serial port; the PLC control module transmits the operating parameters of the air compressor to the touch screen module, and receives the operating instructions forwarded by the touch screen module.

[0007] In some embodiments, the multi-interface type gateway can communicate using the Modbus communication protocol and the Ethernet communication protocol; the bearing controller is connected to the multi-interface type gateway via the Modbus communication protocol, and the frequency converter is connected to the multi-interface type gateway via the Ethernet communication protocol.

[0008] In some embodiments, the air compressor control system also includes an Internet of Things expansion module and a cloud platform; the touch screen module is connected to the cloud platform through the Internet of Things expansion module; the touch screen module is also used to upload the operating parameters and fault information of the air compressor, the operating parameters of the bearing, and the operating parameters of the motor to the cloud platform.

[0009] In some embodiments, the touch screen module is further configured to display fault information and issue an alarm when any one of the operating parameters of the air compressor, the operating parameters of the bearing, and the operating parameters of the motor exceeds a preset threshold.

[0010] In some embodiments, when the PLC control module analyzes the operating status of the air compressor according to the operating parameters of the air compressor, if it is determined that the air compressor is about to fail, it generates an early warning message and transmits it to the touch screen module for display.

[0011] In some embodiments, the multi-interface type gateway is used to perform protocol conversion on the operating parameters of the bearing and the operating parameters of the motor.

[0012] In some embodiments, the cloud platform is provided with a data statistics module; the data statistics module can store the historical operating parameters and fault information of the air compressor, and generate a historical curve based on the historical operating parameters; the operator can query the historical operating parameters, the fault information, and the historical curve through a remote terminal.

[0013] Matching the above-mentioned device, the present invention further provides an air compressor, comprising: the air compressor control system described above.

[0014] The air compressor control system of the present invention includes a PLC control module, a touch screen module, a bearing controller, a frequency converter, and a multi-interface gateway. The PLC control module collects and analyzes air compressor operating parameters, while the multi-interface gateway communicates with the bearing controller and frequency converter. The bearing controller collects bearing operating parameters and transmits them to the touch screen via the gateway. The frequency converter adjusts the motor speed and transmits these parameters to the touch screen via the gateway. The touch screen displays various parameters and receives operational instructions. This enables comprehensive awareness of system status, improves equipment management, and enables timely detection of abnormal parameters through centralized monitoring, enabling rapid system response to faults and preventing them from escalating, thereby enhancing system reliability.

[0015] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present invention.

[0016] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of an air compressor control system according to an embodiment of the present invention;

[0018] Figure 2 Schematic diagram of the structure of another embodiment of the air compressor control system of the present invention;

[0019] Figure 3 This is a schematic diagram of the cloud platform system structure. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] According to an embodiment of the present invention, an air compressor control system is provided, such as Figure 1The structure diagram of an embodiment of the air compressor control system of the present invention is shown. The air compressor control system may include: a PLC control module, a touch screen module, a bearing controller, a frequency converter, and a multi-interface type gateway. The PLC control module is used to collect the operating parameters of the air compressor, and analyze and control the operating status of the air compressor according to the operating parameters of the air compressor; the multi-interface type gateway is respectively connected to the bearing controller and the frequency converter; the bearing controller is used to collect the operating parameters of the bearing of the air compressor in real time, and transmit them to the touch screen module through the multi-interface type gateway; the frequency converter is used to adjust the speed of the motor of the air compressor, and transmit the operating parameters of the motor to the touch screen module through the multi-interface type gateway; the touch screen module is used to display the operating parameters of the air compressor, the operating parameters of the bearing, and the operating parameters of the motor, and receive the operating instructions of the operator.

[0022] The PLC module, at its core, is responsible for collecting and logically controlling the air compressor's operating parameters. The bearing controller collects key parameters such as bearing temperature and vibration frequency. The frequency converter focuses on motor speed, current, and power. A multi-interface gateway converts communication protocols between different devices, ensuring unified data transmission to the touch screen module.

[0023] like Figure 2 As shown, the PLC module is responsible for data acquisition, logical operations, parameter management, equipment control, and fault diagnosis. The touch screen serves as the human-machine interface and intermediary for the IoT module, allowing users to view data, perform control operations, display alarms, and record historical records. The multi-interface gateway connects different devices and handles communication protocol conversion. The bearing controller and inverter transmit data to the touch screen using the Modbus serial port and Ethernet protocol, respectively. The cloud platform primarily provides users with remote monitoring and control. In the system workflow, temperature sensors and pressure sensors collect field data in real time and transmit the data to the PLC via Modbus serial communication. The PLC analyzes and calculates the collected data and the data from the frequency converter and bearing controller forwarded by the touch screen, and controls the equipment operating status according to the preset logic. The PLC sends data to the touch screen via Modbus serial communication, the bearing controller sends data to the multi-interface gateway via Modbus serial port, and the frequency converter sends data to the multi-interface gateway via Ethernet. The multi-interface gateway forwards the received data to the touch screen, and the user can view the equipment operating status and parameters through the touch screen and perform operations such as starting and stopping the equipment and setting parameters. When the system detects a fault, it issues an alarm signal, and the user can ignore the fault and clear it according to the urgency of the fault and continue operation or shut down the equipment for maintenance.

[0024] During data transmission, the PLC module communicates directly with the touch screen. The bearing controller transmits data to the touch screen via a multi-interface gateway. The inverter also transmits data via the multi-interface gateway. Ultimately, the touch screen displays all parameters and receives operational instructions, forming a complete data closed loop. Air compressor operating parameters include exhaust pressure, exhaust temperature, and unit current. Bearing operating parameters include temperature, vibration acceleration, and speed. Motor operating parameters include speed, operating current, output power, and frequency.

[0025] The system uses the PLC control module as the data processing and control core, integrates the communication data of different devices through a multi-interface type gateway, and finally realizes human-computer interaction through the touch screen module. Through the communication control topology of multi-device collaboration, it realizes comprehensive perception and centralized management of the air compressor's operating status, improving the level of equipment management; at the same time, key parameters are centrally monitored to facilitate timely detection of anomalies, lay the foundation for rapid response to faults, and avoid the expansion of faults; the touch screen realizes the integration of data viewing and operation instruction reception, reducing the need for on-site supervision and improving operational efficiency.

[0026] This solution can obtain various operating parameters of the air compressor in real time, achieve comprehensive perception of the status of the entire machine, and improve the level of equipment management. Once abnormal parameters or potential faults are found, the rapid response mechanism can notify the operator to solve the problem in time, avoid the expansion of the fault, and improve the reliability of the system. Functions such as remote control and parameter adjustment improve the convenience of operation, reduce the need for on-site supervision, greatly improve the convenience and efficiency of operation, effectively improve the utilization rate and operating efficiency of equipment, and increase production efficiency.

[0027] In some embodiments, the PLC control module and the touch screen module can be connected via a Modbus communication protocol serial port; the PLC control module transmits the operating parameters of the air compressor to the touch screen module, and receives the operating instructions forwarded by the touch screen module, thereby enhancing the communication stability and data real-time performance between the PLC and the touch screen.

[0028] The PLC control module and touch screen module are connected via the Modbus serial communication protocol, forming a stable bidirectional data transmission channel to ensure the accuracy of command and parameter transmission. The Modbus communication protocol enables information exchange between different devices through a standardized data format. It is suitable for short-distance, low-speed industrial data transmission and features strong compatibility and ease of implementation. Serial connection refers to data transmission via a serial interface, such as RS232 and RS485. It transmits data bit by bit over a single data line and is suitable for short-range communication between industrial devices.

[0029] The PLC control module transmits collected compressor operating parameters to the touch screen module via the Modbus protocol serial port, ensuring real-time display. After receiving the operator's input, the touch screen module forwards the instructions to the PLC control module via the same communication link, which then executes the corresponding control actions. Operational instructions are control commands issued by the operator through the touch screen, such as start / stop commands for the compressor, operating parameter adjustment commands, and fault clearing commands.

[0030] In some embodiments, to accommodate scenarios requiring higher transmission rates or long-distance communication, industrial Ethernet protocols such as Profinet and EtherNet / IP can be used in place of Modbus serial communication. If on-site wiring conditions are limited, wireless serial port modules can be used for wireless communication. Furthermore, data verification mechanisms, such as cyclic redundancy checks (CRCs), can be added to enhance the fault tolerance of Modbus communication. Communication nodes can also be expanded through master-slave mode to accommodate multi-unit collaborative control scenarios, such as connecting a single touchscreen to multiple PLCs.

[0031] In some embodiments, the multi-interface type gateway can communicate using the Modbus communication protocol and the Ethernet communication protocol; the bearing controller is connected to the multi-interface type gateway via the Modbus communication protocol, and the frequency converter is connected to the multi-interface type gateway via the Ethernet communication protocol.

[0032] Because bearing parameters are low-frequency, small-data-volume signals, the bearing controller uses the Modbus communication protocol to connect to a multi-interface gateway. The Modbus protocol's simple frame structure and low data rate meet these transmission requirements, and its anti-interference capabilities are well-suited for industrial environments. However, motor parameters require high-frequency, real-time updates. Therefore, the inverter uses the Ethernet communication protocol to connect to the multi-interface gateway. Ethernet's high-speed transmission capabilities ensure delay-free data transmission, meeting dynamic adjustment requirements. Ethernet, a high-speed network communication protocol based on TCP / IP, supports real-time communication with large data volumes and high transmission rates, making it suitable for equipment that requires rapid information exchange.

[0033] During data transmission, the bearing controller sends collected bearing parameters via the Modbus protocol serial port to the gateway, which converts the Modbus protocol data into a format recognizable by the touch screen. The inverter sends motor parameters to the gateway via the Ethernet protocol. The gateway also performs protocol conversion and then forwards both types of data to the touch screen module, enabling centralized display and monitoring of bearing and motor parameters. This allows the optimal protocol to be matched to the parameter characteristics of different devices, ensuring stable data transmission and real-time updates, and ensuring comprehensive monitoring.

[0034] In some embodiments, to enhance system scalability, the gateway can also add 5G and WiFi modules to support wireless protocol conversion, making it suitable for scenarios with dispersed devices and difficult wiring. The gateway can also integrate data preprocessing functions such as outlier filtering to reduce invalid data transmission and reduce the computing pressure on the touch screen module.

[0035] In some embodiments, the air compressor control system also includes an Internet of Things expansion module and a cloud platform; the touch screen module is connected to the cloud platform through the Internet of Things expansion module; the touch screen module is also used to upload the operating parameters and fault information of the air compressor, the operating parameters of the bearing, and the operating parameters of the motor to the cloud platform.

[0036] The IoT expansion module is a hardware module used to connect devices to the IoT. It supports wireless or wired network connections, can upload data from local devices to the cloud platform, and receive instructions issued by the cloud at the same time. The cloud platform is a virtualization platform deployed on a remote server, with data storage, processing, analysis and remote access functions. It can centrally manage information of multiple devices for users to log in, view and operate through mobile phones, computers and other terminals.

[0037] like Figure 2 As shown, the touch screen module establishes a network connection with the cloud platform through the IoT expansion module, and uploads the operating parameters of the air compressor, bearings, motors, and fault information detected by the system to the cloud platform in real time or at regular intervals. The cloud platform receives and stores this data, forming an equipment operation database. Users can log in to the platform through remote terminals such as mobile phones and computers to view data at any time, enabling remote monitoring of the air compressor status. Therefore, managers can log in to the cloud platform through remote terminals regardless of their location to understand the air compressor's operating status, improving management flexibility and convenience. Fault information is uploaded to the cloud platform in real time and can be pushed to relevant personnel simultaneously, preventing faults from being discovered in time due to unattended on-site operations, reducing the risk of fault expansion, and improving system reliability.

[0038] The overall structure of the cloud platform is as follows Figure 3As shown, the parameters of each device in the system are directly or indirectly transmitted to the touch screen and cloud platform through different communication protocols. Users only need to log in to view the real-time data information of the air compressor and perform on-site or remote operations. The cloud server is mainly divided into four modules: monitoring and management module, maintenance management, data statistics, and system management. The monitoring and management module implements four functions: monitoring data, remote control, fault alarm / early warning, and fault code management; in the monitoring data interface, you can view various real-time data of the air compressor, which plays the role of monitoring the status of the air compressor at any time. In the remote control interface, you can remotely start or stop the operation of the air compressor according to the status of the air compressor; in the fault alarm / early warning interface, you can view the fault information of the air compressor, including the fault content, fault occurrence time, fault code, and can query historical faults according to time; the fault code management interface can add, view, edit, and other operations for all fault categories, fault codes, fault descriptions, etc. The maintenance management module implements three functions: maintenance cycle library, maintenance plan, and maintenance reminder. In the maintenance cycle library interface, you can add and establish maintenance cycles for air compressor filters, motor lubrication, and other maintenance cycles. In the maintenance plan interface, you can query maintenance records and add various maintenance plans. In the maintenance reminder interface, after creating a maintenance plan, the system will issue a maintenance reminder when the air compressor requires maintenance after a certain period of operation. The data statistics module mainly provides functions such as historical data and historical curves, performing statistical calculations on historical air compressor data and visually displaying air compressor operating status trends and alarm information. The system management module implements role management and personnel management functions, allowing users to add, edit, and delete user roles and personnel. System management is only accessible to administrator accounts. Role management is categorized into air compressor manufacturer users, dealer users, and ordinary customers, and different role accounts have different operating permissions. In personnel management, different personnel accounts can be added and deleted with different permission levels. Administrator accounts have the highest permission level, while ordinary accounts have limited permissions.

[0039] In some embodiments, the touch screen module is further configured to display fault information and issue an alarm when any one of the operating parameters of the air compressor, the operating parameters of the bearing, and the operating parameters of the motor exceeds a preset threshold.

[0040] The operator uses the touchscreen's parameter setting interface to set preset thresholds for the compressor, bearing, and motor operating parameters. These thresholds are stored in the touchscreen's local database. The touchscreen module receives and interprets parameters from the PLC control module, bearing controller, and inverter in real time, comparing the actual values ​​against the preset thresholds. If any parameter exceeds the threshold, the touchscreen immediately triggers an alarm, displaying a pop-up window with the fault information and activating an external buzzer or indicator light to sound an alarm. Upon seeing the alarm, the operator can confirm the fault, adjust parameters, or shut down the system using the touchscreen. The system clears the alarm log after the fault is resolved. Fault information includes the name of the exceeded parameter, the current value, the threshold range, and the fault type. In some cases, a fault code is also included to facilitate quick problem location. Alarm notifications include visual and audible cues, such as a flashing indicator light and a beeping buzzer.

[0041] Through automatic detection and alarm, operators can be informed of faults as soon as possible, which can buy time for timely processing, avoid the expansion of faults, improve fault handling efficiency, and reduce the risk of system downtime.

[0042] In some embodiments, when the PLC control module analyzes the operating status of the air compressor according to the operating parameters of the air compressor, if it is determined that the air compressor is about to fail, it generates an early warning message and transmits it to the touch screen module for display.

[0043] An impending failure refers to a potential fault condition that may not yet show obvious abnormalities in the air compressor, but can be predicted through the trend of operating parameters. For example, a bearing temperature rises from 60°C to 75°C (threshold 80°C) within 10 minutes, or a motor current continues to fluctuate and gradually approaches the rated upper limit. Without intervention, such conditions could develop into an actual failure. Warning information is a prompt message generated by the system for potential faults. It includes warning parameters, current trends, and recommended actions. Unlike fault information, its purpose is to provide early warning rather than report an abnormality that has already occurred.

[0044] After collecting the compressor's operating parameters, the PLC control module dynamically monitors them using a built-in algorithm. For example, it continuously records bearing temperature changes and calculates the slope (e.g., a 2°C rise per minute). If the slope exceeds a preset risk value (e.g., 1°C per minute), it determines that the temperature is abnormally rising. It also monitors the motor current fluctuation amplitude. If five consecutive sampling values ​​are between 1.1 and 1.2 times the rated current (threshold 1.2 times), it determines that the current is approaching an over-limit. When the PLC determines a potential fault exists, it immediately generates an early warning message, which is transmitted to the touch screen module via the Modbus communication protocol serial port and displayed on the screen in a specific format, distinct from the red fault pop-up window. This enables preventive maintenance, reduces system maintenance costs and downtime losses, and improves system reliability.

[0045] In some embodiments, the multi-interface type gateway is used to perform protocol conversion on the operating parameters of the bearing and the operating parameters of the motor.

[0046] The multi-interface gateway receives data from two different paths: bearing operating parameters sent by the bearing controller via the Modbus serial port, and motor operating parameters sent by the inverter via the Ethernet protocol. The gateway integrates a Modbus protocol parser and an Ethernet protocol parser to decode the received data and extract the original parameter values. The parameters from both protocols are then converted to a data format supported by the touchscreen module. These converted bearing and motor parameters are then transmitted to the touchscreen module via the gateway's output interface, ensuring that the touchscreen can display both types of parameters simultaneously, enabling centralized monitoring. This resolves protocol compatibility issues, ensures that parameters are not distorted during transmission, and guarantees data transmission accuracy.

[0047] In some embodiments, for small air compressor systems, an integrated gateway (with the protocol conversion function embedded in the touch screen module) can be used instead of an independent gateway to reduce the number of devices; for large cluster systems, a distributed gateway (with a sub-gateway set up in each area) can be used to improve data processing efficiency.

[0048] In some embodiments, the cloud platform is provided with a data statistics module; the data statistics module can store the historical operating parameters and fault information of the air compressor, and generate a historical curve based on the historical operating parameters; the operator can query the historical operating parameters, the fault information, and the historical curve through a remote terminal.

[0049] The data statistics module is a functional module in the cloud platform responsible for data storage, analysis, and visualization. It organizes and calculates historical operating parameters and fault information of the air compressor, and generates intuitive historical curves, such as temperature change over time. Historical operating parameters refer to the operating status records of the air compressor over a period of time, including hourly / minute exhaust temperature, operating pressure, motor speed, bearing vibration values, etc. This data is stored in a time series to reflect the long-term operating trends of the equipment.

[0050] The data statistics module receives and stores historical compressor operating parameters uploaded from the touch screen module, forming a structured database to ensure data traceability. Based on the stored historical operating parameters, the module automatically calculates statistical values ​​at preset intervals and generates historical curves. For example, connecting the daily maximum exhaust temperatures into a line visually displays temperature trends. Operators can log in to the cloud platform via a remote terminal such as a mobile phone or computer and access the data statistics module interface. They can query historical data, fault information, and corresponding historical curves by time range and parameter type, enabling off-site data traceability and analysis. This ensures a complete data lifecycle pipeline and enhances trend analysis capabilities.

[0051] Using the technical solution of this embodiment, the air compressor control system includes a PLC control module, a touch screen module, a bearing controller, a frequency converter, and a multi-interface gateway. The PLC control module collects and analyzes air compressor operating parameters, while the multi-interface gateway communicates with the bearing controller and frequency converter. The bearing controller collects bearing operating parameters and transmits them to the touch screen via the gateway. The frequency converter adjusts the motor speed and transmits these parameters to the touch screen via the gateway. The touch screen displays various parameters and receives operational instructions. This enables comprehensive awareness of system status, improves equipment management, and enables centralized monitoring to promptly detect abnormal parameters, enabling the system to quickly respond to faults and prevent them from escalating, thereby improving system reliability.

[0052] According to an embodiment of the present invention, an air compressor corresponding to an air compressor control system is also provided. The air compressor may include: the air compressor control system described above.

[0053] Since the processing and functions implemented by the air compressor of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned air compressor control system, for any details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.

[0054] Using the technical solution of the present invention, the air compressor control system includes a PLC control module, a touch screen module, a bearing controller, a frequency converter, and a multi-interface gateway. The PLC control module collects and analyzes air compressor operating parameters, while the multi-interface gateway communicates with the bearing controller and frequency converter. The bearing controller collects bearing operating parameters and transmits them to the touch screen via the gateway. The frequency converter adjusts the motor speed and transmits these parameters to the touch screen via the gateway. The touch screen displays various parameters and receives operational instructions. This enables comprehensive awareness of system status, improves equipment management, and enables centralized monitoring to promptly detect abnormal parameters, enabling the system to quickly respond to faults and prevent them from escalating, thereby improving system reliability.

[0055] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0056] The foregoing description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims.

Claims

1. An air compressor control system, characterized in that: include: PLC control module, touch screen module, bearing controller, frequency converter, multi-interface type gateway; The PLC control module is used to collect the operating parameters of the air compressor and analyze and control the operating status of the air compressor according to the operating parameters of the air compressor; The multi-interface type gateway is communicatively connected to the bearing controller and the frequency converter respectively; The bearing controller is used to collect the operating parameters of the bearings of the air compressor in real time and transmit them to the touch screen module through the multi-interface type gateway; The frequency converter is used to adjust the speed of the motor of the air compressor and transmit the operating parameters of the motor to the touch screen module through the multi-interface type gateway; The touch screen module is used to display the operating parameters of the air compressor, the operating parameters of the bearing, and the operating parameters of the motor, and to receive operating instructions from an operator.

2. The air compressor control system according to claim 1, characterized in that: The PLC control module and the touch screen module can be connected via a Modbus communication protocol serial port; the PLC control module transmits the operating parameters of the air compressor to the touch screen module, and receives the operating instructions forwarded by the touch screen module.

3. The air compressor control system according to claim 1, characterized in that: The multi-interface type gateway can communicate using the Modbus communication protocol and the Ethernet communication protocol; the bearing controller is connected to the multi-interface type gateway via the Modbus communication protocol, and the frequency converter is connected to the multi-interface type gateway via the Ethernet communication protocol.

4. The air compressor control system according to any one of claims 1 to 3, characterized in that: The air compressor control system also includes an Internet of Things expansion module and a cloud platform; the touch screen module is connected to the cloud platform through the Internet of Things expansion module; the touch screen module is also used to upload the operating parameters and fault information of the air compressor, the operating parameters of the bearing, and the operating parameters of the motor to the cloud platform.

5. The air compressor control system according to claim 1, characterized in that: The touch screen module is further configured to display fault information and issue an alarm when any one of the operating parameters of the air compressor, the operating parameters of the bearing, and the operating parameters of the motor exceeds a preset threshold.

6. The air compressor control system according to claim 1, characterized in that: When the PLC control module analyzes the operating status of the air compressor according to the operating parameters of the air compressor, if it is determined that the air compressor is about to fail, it generates early warning information and transmits it to the touch screen module for display.

7. The air compressor control system according to claim 1 or 3, characterized in that: The multi-interface type gateway is used to perform protocol conversion on the operating parameters of the bearing and the operating parameters of the motor.

8. The air compressor control system according to claim 4, characterized in that: The cloud platform is provided with a data statistics module; the data statistics module can store the historical operating parameters and fault information of the air compressor, and generate a historical curve based on the historical operating parameters; the operator can query the historical operating parameters, the fault information, and the historical curve through a remote terminal.

9. An air compressor, characterized in that: include: The air compressor control system according to any one of claims 1 to 8.

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