Intelligent explosion-proof power distribution cabinet system based on Internet of Things and control method thereof

Abstract

The invention belongs to the technical field of anti-explosion power distribution cabinets, and provides an intelligent anti-explosion power distribution cabinet system based on the Internet of Things and a control method of the intelligent anti-explosion power distribution cabinet system in order to overcome the defects of a traditional power distribution cabinet in flammable and explosive places. The system uses the Internet of Things technology to carry out intelligent monitoring and management on electrical elements in the power distribution cabinet. Power utilization data and equipment operation state information are collected in real time through a sensor and are transmitted to a control center. And the control center analyzes and processes the data by using an advanced algorithm so as to realize remote control and state checking. Meanwhile, the system has an intelligent early warning function, and when the equipment is detected to be abnormal, an alarm is given out in time and an operator is notified. According to the system, the explosion-proof performance is remarkably improved, and the requirements of high-danger areas are met; convenient remote operation is realized, the efficiency is improved, and the personnel risk is reduced; the maintenance process is simplified, and cost and damage are reduced; real-time accurate monitoring and early warning are provided, and the probability of safety accidents is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of explosion-proof distribution cabinets, and particularly relates to an Internet of Things intelligent explosion-proof distribution cabinet system integrating an intelligent circuit breaker, an edge computing module, and a human-machine interaction interface, and a control method thereof, which is applicable to power distribution and safety management in flammable and explosive environments such as petrochemical industry, mines, and hazardous chemical storage. Background Art

[0002] In many flammable and explosive working places such as petrochemical industry, natural gas extraction, and underground coal mines, traditional distribution cabinets expose many defects and deficiencies. First of all, their explosion-proof performance is difficult to fully meet the stringent requirements of high-risk areas such as Zone 2. Due to factors such as electric sparks, electric arcs, or high temperatures generated by internal electrical components, it is extremely easy to trigger explosion accidents, causing devastating blows to the lives of personnel and production facilities. Secondly, the operation method of traditional distribution cabinets is extremely inconvenient. It mostly relies on mechanical buttons and indicator lights, and operators need to operate and check the status by contacting the equipment closely. This not only leads to low operation efficiency but also greatly increases the time and risk of personnel being exposed to dangerous environments. Moreover, the maintenance process of traditional distribution cabinets is cumbersome and complex. Frequent disassembly operations not only consume a large amount of human, material, and time costs, but also are extremely easy to damage the explosion-proof structure during the disassembly process, resulting in a decline in explosion-proof performance, thereby affecting the overall reliability and safety of the equipment. In addition, traditional distribution cabinets cannot provide intuitive, real-time, and accurate power consumption data and equipment operation status information for operators, making it difficult for operators to detect equipment abnormalities in time and take effective countermeasures, thus significantly increasing the probability of safety accidents caused by electrical failures.

[0003] The above information disclosed in the above background art part is only used to strengthen the understanding of the background art of the technology described in this article. Therefore, the background art may contain certain information that is not known prior art to those skilled in the art. Summary of the Invention

[0004] In order to solve the defects existing in the above prior art, the present invention proposes an Internet of Things intelligent explosion-proof distribution cabinet system and a control method thereof.

[0005] The technical solutions adopted by the present invention are as follows:

[0006] Intelligent explosion-proof power distribution cabinet system based on the Internet of Things, including a cabinet body and a panel for enclosing the cabinet body. A control module is provided on the panel, and a power supply module, a sensor module, a control module, intelligent circuit breakers, and a communication module are arranged inside the cabinet body; the power supply module is provided with a main power supply incoming line for providing power to electronic components in the entire system, the sensor module is used to collect analog electrical signals of current, voltage, power, and leakage parameters in the circuit, the control module is used to receive and process the analog electrical signals and transmit them to a touch display screen on the control module for real-time display, the intelligent circuit breakers are used to perform power-off operations of corresponding switches, and the communication module is used to transmit the processing results of the analog electrical signals to the cloud or a PC terminal.

[0007] Preferably, the control module includes a toggle switch mechanism on the panel, and the toggle switch mechanism is connected to the power supply module and can control the opening and closing of the power supply module; it also includes a touch display screen, which is electrically connected to the communication module and is used for opening and closing operations of the intelligent circuit breakers, parameter setting, and viewing various real-time data; it also includes several push-button switches, which are respectively electrically connected to the control module and are used to perform opening and closing operations on the intelligent circuit breakers through the control module; it also includes power indicator lights, which are respectively electrically connected to the intelligent circuit breakers and are used to display the opening and closing states of the intelligent circuit breakers.

[0008] Preferably, the power supply module includes a main switch and a power supply module. The main switch is provided with a main power supply incoming line connected to 220V commercial power. The main switch is electrically connected to the power supply module, the control module, the intelligent circuit breakers, and the communication module through wires respectively; the power supply module and the control module are connected by a six-row pin for data transmission and power supply.

[0009] Preferably, the sensor module includes a current transformer, a voltage transformer, a power sensor, and a leakage sensor.

[0010] Preferably, the intelligent circuit breakers include two intelligent 2P circuit breakers, one intelligent 3P circuit breaker, and one intelligent 1P circuit breaker. One end of the intelligent 3P circuit breaker is electrically connected to the control module, and the other end is electrically connected to the communication module; the intelligent 2P circuit breakers and the intelligent 1P circuit breaker are respectively electrically connected to the communication module.

[0011] Preferably, a branched outgoing terminal is also connected to one end of the intelligent circuit breaker for connecting different electrical terminals.

[0012] A control method for an intelligent explosion-proof power distribution cabinet system based on the Internet of Things includes the following steps:

[0013] Step 1: System initialization

[0014] Hardware self-check: After the system is powered on, the power supply module starts to work, supplying power to the entire system. The control module, sensor module, control module, intelligent circuit breaker, and communication module perform hardware self-checks in sequence to check whether the hardware connections of each module are normal and whether the power supply is stable;

[0015] Software initialization: After the hardware self-check passes, the software systems of each module perform initialization settings;

[0016] Step 2: Data acquisition

[0017] Sensor data acquisition: The current transformer, voltage transformer, power sensor, and leakage sensor in the sensor module start to collect analog electrical signals of current, voltage, power, and leakage parameters in the circuit in real time;

[0018] Data preprocessing: The analog electrical signals collected by the sensor are subjected to preprocessing operations and converted into a signal form suitable for transmission and processing;

[0019] Step 3: Data transmission and processing

[0020] Data transmission to the control module: The preprocessed analog electrical signals are transmitted to the control module; Control module processing: After receiving the analog electrical signals, the control module performs analog-to-digital conversion, converts the analog signals into digital signals, and performs a preliminary analysis on the digital signals to extract key parameter information;

[0021] Data transmission to the control module: The control module transmits the processed digital signals to the touch display screen on the control module. At the same time, the data is transmitted to the cloud or PC for further processing and storage through the communication module;

[0022] Step 4: Data display and warning

[0023] Data display: The touch display screen displays the current, voltage, power, and leakage parameter information in the circuit in real time, as well as the on / off state of the intelligent circuit breaker;

[0024] Abnormal warning: The control module analyzes and judges the collected parameter information according to the preset thresholds and algorithms. If parameter abnormalities are found, such as excessive current, too high or too low voltage, or leakage, the touch display screen will emit an audible and visual alarm signal to remind the operation and maintenance personnel to pay attention;

[0025] Step 5: Intelligent circuit breaker performs operations

[0026] On / off operation: After receiving the control instruction, the control module transmits the instruction to the intelligent circuit breaker, and the intelligent circuit breaker performs the corresponding on / off operation according to the instruction to cut off or connect the circuit;

[0027] Status feedback: After the intelligent circuit breaker completes an operation, it feeds back its opening and closing status information to the control module. The control module updates the display information on the touch screen and transmits the status information to the cloud or PC through the communication module;

[0028] Step 6: In-depth data analysis and optimized regulation

[0029] Data analysis in the cloud: After the cloud server receives the transmitted data, it uses intelligent algorithms to deeply analyze the collected data, accurately judge the fault type and location, and achieve predictive maintenance;

[0030] Formulation of optimized regulation strategies: According to the data analysis results, the cloud server formulates optimized regulation strategies, such as reasonably allocating electric energy and adjusting equipment operation parameters;

[0031] Issuance and execution of strategies: The cloud server sends the optimized regulation strategies to the control module through the communication module, and the control module adjusts and controls the intelligent circuit breaker and power supply module according to the strategies.

[0032] The control method also includes the remote and local control functions of the equipment: The operation and maintenance personnel remotely access the system through the cloud or PC, view the equipment status, diagnose problems, and send control instructions to the control module through the communication module to achieve opening and closing operations and parameter adjustment of the intelligent circuit breaker; The operation and maintenance personnel can also operate the control equipment such as the touch screen, lever switch mechanism, and button switch on the control module on-site to perform opening and closing operations and parameter settings on the intelligent circuit breaker;

[0033] The control method also includes the maintenance and energy-saving management functions of the equipment; The system relies on the intelligent monitoring and early warning system to discover potential problems in advance and achieve predictive maintenance; The system has energy-saving modes such as intelligent sleep, and automatically adjusts the operation state when the equipment is under low load or no load to reduce energy consumption.

[0034] In summary, compared with the prior art, the intelligent explosion-proof power distribution cabinet system and its control method based on the Internet of Things provided by the present invention have the following technical effects:

[0035] 1. It has a real-time monitoring function, can monitor electrical parameters (such as voltage, current, power, temperature, etc.) in real time, give early warnings of abnormalities, and prevent accidents from occurring.

[0036] 2. In addition to the conventional overload, short circuit, and leakage protection, it also has multiple protection functions such as over- and under-voltage, over-temperature, and surge protection. The protection system is more comprehensive and has strong ability to handle complex faults.

[0037] 3. The leakage protection can be remotely tested regularly to ensure the perfection of the leakage protection function.

[0038] 4. By combining a touch screen (or local electronic switch) with remote control, remote opening and closing operations, parameter adjustment, etc. can be carried out, which is not affected by harsh environments such as outdoors and dust, and the operation is convenient and safe.

[0039] 5. Usually, the disassembly and assembly situations are extremely rare, so it can maintain good and stable explosion-proof performance for a long time.

[0040] 6. Incorporating Internet of Things technology, remote control can be achieved, and remote opening and closing operations, parameter adjustment, etc. can be carried out, which is not affected by harsh environments, and the operation is convenient and safe.

[0041] 7. Through intelligent algorithms, in-depth analysis of the collected data is carried out to accurately judge the type and location of faults, realize predictive maintenance, and improve the intelligent level of equipment management. 8. According to the real-time monitoring data and intelligent analysis results, the power consumption of the equipment can be optimized and regulated, the electric energy can be reasonably distributed, unnecessary electric energy consumption can be avoided, and the energy-saving purpose can be achieved.

[0042] 9. Some have energy-saving modes such as intelligent sleep. When the equipment is under low load or no load, the operating state is automatically adjusted to reduce energy consumption.

[0043] 10. With the intelligent monitoring and early warning system, potential problems can be discovered in advance, predictive maintenance can be realized, the frequency and workload of manual maintenance can be reduced, and the operation and maintenance costs can be saved.

[0044] 11. The remote operation and maintenance function facilitates technicians to remotely view the equipment status and diagnose problems, without having to go to the site every time, improving the operation and maintenance efficiency.

[0045] 12. The maintenance operation is relatively simple. The system will prompt the fault location and maintenance suggestions, reducing the professional skill requirements for operation and maintenance personnel. Based on the above given information, supplement the process steps of a control method for an intelligent explosion-proof power distribution cabinet system based on the Internet of Things. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention will be described by way of examples and with reference to the accompanying drawings, wherein:

[0047] Figure 1 is a schematic diagram of the internal layout of the intelligent explosion-proof power distribution cabinet system in the present invention;

[0048] Figure 2 is a schematic diagram of the panel layout of the intelligent explosion-proof power distribution cabinet system in the present invention;

[0049] Figure 3 is a wiring schematic diagram of the 808 control module in the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some of the embodiments of this application, rather than all the embodiments. The components of the embodiments of this application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents the selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative efforts belong to the scope of protection of this application.

[0051] Embodiment 1

[0052] This embodiment provides an intelligent explosion-proof power distribution cabinet system based on Internet of Things technology. The specific structure is as shown in Figure 1 、 2 、Figure 3. The system includes a cabinet body 11 and a panel 14 structure for enclosing the cabinet body 11, where:

[0053] Panel 14 module: A control module is integrated on the panel 14, serving as a human-machine interaction interface and the system control center, supporting functions such as parameter setting, status monitoring, and abnormal alarm.

[0054] Internal module of the cabinet body 11:

[0055] Power supply module: Configure the main power supply inlet 12 interface, adopt a redundant power supply design, and an optional UPS backup power supply to provide stable power supply for each electronic component of the system, supporting overload protection and leakage monitoring functions.

[0056] Sensor module: The sensor module includes current transformers, voltage transformers, power sensors, and leakage sensors. Adopt a high-precision sensor array to collect key parameters such as current, voltage, power, and leakage of the circuit in real time, output standardized analog electrical signals, and have self-calibration and temperature compensation functions.

[0057] 808 control module 2: As the signal processing core, receive the analog electrical signals of the sensor module, and after digital filtering and feature extraction, transmit them to the control module through a standardized protocol such as Modbus-RTU. Support multi-channel signal synchronous processing and abnormal state linkage response.

[0058] Intelligent circuit breaker: Built-in microprocessor and electromagnetic tripping mechanism, perform millisecond-level tripping operation according to the control module instructions or preset protection thresholds, support remote / local dual-mode control, and have fault memory and self-diagnosis functions.

[0059] Communication module 5: Integrates industrial-grade wireless communication units such as LoRa / 4G / NB-IoT and Ethernet interfaces, supports industrial protocols such as Modbus-TCP / OPC UA, and uploads the processed electrical signal data and device status information to the cloud or PC-side monitoring platform in real time, supporting edge computing and data compression transmission.

[0060] This system realizes the intelligent upgrade of the power distribution cabinet through modular design, significantly improves the reliability of power supply in explosion-proof environments, and is applicable to high-risk industries such as petrochemical, mining, and metallurgy.

[0061] In a specific embodiment, the hardware composition and function realization of the control module are as follows:

[0062] Dip switch mechanism 10

[0063] Structure: Integrated on the surface of the panel 14, with an explosion-proof design meeting the Ex d IICT6 protection standard, the mechanical structure is sealed by IP65, and it is adapted to the emergency power-off interface of the power supply module.

[0064] Function: Directly controls the on / off of the main circuit of the power supply module through mechanical linkage, has a physical locking function that requires a special key to unlock, and supports manual reset operations in the power-off state.

[0065] Touch display screen 7

[0066] Structure: Adopts a 7-inch industrial-grade capacitive touch screen with a resolution of 1024×600, the surface is covered with explosion-proof tempered glass, and supports multi-touch and glove operation modes.

[0067] Function: Configures parameters such as the overload protection threshold, leakage action current, and delay time of the intelligent circuit breaker through a graphical interface;

[0068] Real-time monitoring: Dynamically displays the values and trend curves of parameters such as current, voltage, power, and leakage, and supports historical data query with a storage capacity of ≥7 days;

[0069] Closing and opening control: Remotely controls the closing and opening actions of the intelligent circuit breaker through virtual buttons or gesture operations, and the operation records are automatically uploaded to the cloud log.

[0070] Button switch 9 array

[0071] Structure: Adopts explosion-proof metal buttons with LED backlight indication, each button is independently numbered and corresponds to the input channel of the 808 control module 2.

[0072] Function: Triggers a specific action sequence of the 808 control module 2 through a combination of short press / long press instructions such as "short press + 3-second long press" to realize the local closing and opening control of the intelligent circuit breaker;

[0073] Mode Switching: It supports quick switching between manual / auto modes, and the switching status is synchronously displayed on the touch display screen 7.

[0074] Power Indicator Light 8 Cluster

[0075] Structure: It adopts high-brightness LED indicator lights in red / green dual colors, which are connected to the auxiliary contacts of the intelligent circuit breaker through explosion-proof light guides.

[0076] Status Display: The green indicator light being constantly on indicates the closing status of the intelligent circuit breaker, the red indicator light flashing indicates the tripping status, and the alternating flashing of the two lights indicates a fault alarm;

[0077] Fault Location: Fault types such as overload, short circuit, and leakage are distinguished through the indicator light coding rules such as the combination of "alternating red and green + buzzer".

[0078] Technical Advantages:

[0079] Safety: Both the toggle switch and the push-button switch 9 adopt intrinsically safe circuit designs to avoid the risk of explosion caused by electric sparks;

[0080] Reliability: The touch display screen 7 adopts an industrial-grade processor with an ARM Cortex-A7 core, supports operation in a wide temperature range from -40°C to +85°C, and has an electromagnetic interference resistance reaching the EN 61000-6-2 standard;

[0081] Maintainability: The modular design supports hot swapping, and the status of each component can be quickly located through the self-diagnosis interface of the touch display screen 7.

[0082] Through the collaborative design of the human-machine interaction hardware, this embodiment realizes the safe operation and efficient operation and maintenance of the explosion-proof power distribution cabinet in a dangerous environment, significantly improving the intelligent level of the system and the user operation experience.

[0083] In a specific embodiment, the hardware architecture and electrical connection design of the power supply module are as follows:

[0084] Main Switch 3 Switch Main Switch 3

[0085] Structure: It adopts an explosion-proof disconnecting switch with an Ex d IICT6 protection level, a rated current of ≥63A, and has a dual protection mechanism of mechanical interlock and electrical interlock.

[0086] Function:

[0087] Power Access: Connect to the 220V mains through a three-core explosion-proof cable 3×2.5mm 2 and support three-phase access of L / N / PE;

[0088] System Power Supply: Through 6mm 2The copper wire is connected to the power supply module 1, 808 control module 2, intelligent circuit breaker and communication module 5. The rated current of the fuse configured for each branch is matched according to the load.

[0089] Emergency power off: Support for manual / remote dual-mode disconnection. The remote disconnection signal is achieved through the dry contact input of the 808 control module 2.

[0090] Power supply module 1

[0091] Structure: Adopt modular redundant design, including an AC / DC conversion unit with an input of 220VAC and an output of 24VDC / 5A, and a UPS backup power supply of 12V / 7Ah lead-acid battery.

[0092] Functions:

[0093] Power supply distribution:

[0094] Main power supply: Connect to the 808 control module 2 through a six-row pin 2×3P, providing a 24VDC power supply and an RS-485 data bus baud rate of 9600bps, Modbus-RTU protocol;

[0095] Backup power supply: The UPS automatically switches when the mains power is cut off, supporting the operation of the system core components 808 control module 2 and communication module 5 for ≥30 minutes;

[0096] Status monitoring: Real-time output of parameters such as power supply voltage, current, temperature, etc. to the 808 control module 2, triggering an audible and visual alarm in case of abnormality.

[0097] Electrical connection design

[0098] Wire specifications:

[0099] Main switch 3 to the main power supply of each module: 6mm 2 The copper wire has a withstand voltage of 500V;

[0100] 808 control module 2 to sensor / intelligent circuit breaker: 2.5mm 2 The shielded twisted pair has a withstand voltage of 300V;

[0101] Communication module 5 to cloud / PC: Category 5e shielded network cable for 100Mbps Ethernet or LoRa wireless module in the 433MHz band.

[0102] Protection measures:

[0103] All wiring terminals adopt explosion-proof crimp terminals with IP67 protection, supporting hot plugging;

[0104] The power supply circuit is configured with a surge protector SPD with a maximum discharge current of 40kA to suppress lightning-induced overvoltage.

[0105] Technical advantages:

[0106] Safety: Both the main switch 3 and the power supply module 1 are certified by the IEC 60947 standard and have three-level protection against short circuit, overload, and leakage.

[0107] Reliability: The redundant design of the power supply module 1 improves the system's MTBF (Mean Time Between Failures) to ≥50,000 hours.

[0108] Scalability: The six-row pin interface supports hot plugging and can be used to expand environmental monitoring sensors such as temperature, humidity, and gas concentration.

[0109] Through the refined design of the power supply module, this embodiment realizes safe and stable power supply of the explosion-proof distribution cabinet in a dangerous environment, and at the same time reserves an interface for subsequent system upgrade and function expansion.

[0110] In a specific embodiment, the configuration scheme and electrical connection design of the intelligent circuit breaker module are as follows:

[0111] Circuit breaker model and function allocation

[0112] Intelligent circuit breaker 3P4 three-phase:

[0113] Quantity: 1 unit

[0114] Function: As the control core of the main power supply circuit, it supports independent on-off control of three-phase currents L1 / L2 / L3 and three-phase unbalance protection.

[0115] Connection relationship:

[0116] One end communicates with the 808 control module 2 through a six-row pin interface 3×2P to achieve an RS-485 bus communication baud rate of 19,200 bps and the Modbus-TCP protocol, receiving on-off commands and feedback status signals.

[0117] The other end is connected to the communication module 5 through an RJ45 interface, supporting the IEC 61850 standard protocol to achieve two-way data interaction with the cloud monitoring platform.

[0118] Intelligent circuit breaker 2P6 two-phase:

[0119] Quantity: 2 units

[0120] Function: Used to control single-phase load circuits such as air conditioners and sockets, and has functions of overload, short circuit, leakage protection, and residual current monitoring.

[0121] Connection relationship: Connected to the communication module 5 through the CAN bus version 2.0B, supporting multi-node networking with a maximum communication distance of 1 km.

[0122] Intelligent circuit breaker 1P5 single-phase:

[0123] Quantity: 1 unit

[0124] Function: Used to control independent loads such as emergency lighting and access control systems, supporting remote reset and self-check functions;

[0125] Connection relationship: Communicate with communication module 5 through the LoRa wireless module in the 470MHz frequency band with an SF7 spreading factor to achieve low-power wireless networking.

[0126] Design of branch outgoing terminal 13

[0127] Structure: Adopt an explosion-proof terminal block with an Ex d IICT6 protection level, supporting multi-loop parallel output, and the maximum current-carrying capacity of a single terminal is 63A;

[0128] Function:

[0129] Load distribution:

[0130] The L1 / L2 / L3 / N / PE terminals of intelligent circuit breaker 3P4 are respectively connected to three-phase loads such as motors and welding machines;

[0131] The L / N terminals of intelligent circuit breaker 2P6 are connected to single-phase loads such as lighting and sockets;

[0132] The L terminal of intelligent circuit breaker 1P5 is connected to independent loads such as sensors and controllers;

[0133] Expandability: Reserve 5 spare terminals to support future load expansion or access of special equipment.

[0134] Electrical terminal compatibility

[0135] Lamp loads: Support LED lights, fluorescent lights, high-pressure sodium lamps, etc., with a rated power range of 10W to 2000W;

[0136] Power loads: Support three-phase asynchronous motors, frequency converters, etc., with a rated current range of 1A to 63A;

[0137] Control loads: Support PLCs, DCS controllers, relays, etc., and the signal types are compatible with dry contact / wet contact input and output.

[0138] Technical advantages:

[0139] Safety: All circuit breakers have passed CCC certification, have an IP67 protection level, and support explosion-proof, waterproof, and dust-proof functions;

[0140] Reliability: The mechanical life of the circuit breaker is ≥20,000 times, the electrical life is ≥10,000 times, and the overload tripping time is supported to be ≤0.1s;

[0141] Intelligence: Through the 808 control module 2, hierarchical protection and energy efficiency management of the load are realized, and the fault location accuracy reaches the loop level.

[0142] In this embodiment, through the differential configuration of the intelligent circuit breaker module, refined control of complex electrical systems is achieved, and at the same time, a highly reliable power distribution solution is provided for scenarios such as industrial automation and smart buildings.

[0143] Example 2

[0144] A control method for an intelligent explosion-proof power distribution cabinet system based on the Internet of Things includes:

[0145] Step 1: System initialization

[0146] Hardware self-check: After the system is powered on, the power supply module starts to work to supply power to the entire system. The control module, sensor module, 808 control module 2, intelligent circuit breaker, and communication module 5 perform hardware self-checks in sequence to check whether the hardware connections of each module are normal and whether the power supply is stable.

[0147] Software initialization: After the hardware self-check passes, the software systems of each module perform initialization settings, including parameter reset, data clearing, communication protocol configuration, etc., to ensure that the system is in an initial working state.

[0148] Step 2: Data acquisition

[0149] Sensor data acquisition: The current transformer, voltage transformer, power sensor, and leakage sensor in the sensor module start to collect analog electrical signals of current, voltage, power, and leakage parameters in the circuit in real time.

[0150] Data preprocessing: The analog electrical signals collected by the sensor are subjected to preliminary filtering, amplification and other preprocessing operations, and converted into a signal form suitable for transmission and processing.

[0151] Step 3: Data transmission and processing

[0152] Data transmission to the 808 control module 2: The preprocessed analog electrical signals are transmitted to the 808 control module 2; 808 control module 2 processing: After the 808 control module 2 receives the analog electrical signals, it performs analog-to-digital conversion, converts the analog signals into digital signals, and performs preliminary analysis on the digital signals to extract key parameter information.

[0153] Data transmission to the control module: The 808 control module 2 transmits the processed digital signals to the touch display screen 7 on the control module. At the same time, the data is transmitted to the cloud or PC through the communication module 5 for further processing and storage.

[0154] Step 4: Data display and warning

[0155] Data display: The touch display screen 7 displays the current, voltage, power, and leakage parameter information in the circuit in real time, as well as the opening and closing states of the intelligent circuit breaker;

[0156] Abnormal warning: The control module analyzes and judges the collected parameter information according to the preset thresholds and algorithms. If parameter abnormalities are found, such as excessive current, too high or too low voltage, or leakage, the touch display screen 7 will emit an audible and visual alarm signal to alert the operation and maintenance personnel;

[0157] Step Five: Remote and Local Control

[0158] Remote control: The operation and maintenance personnel can remotely access the system through the cloud or the PC side, view the device status, diagnose problems, and send control commands to the control module through the communication module 5 to achieve the opening and closing operations and parameter adjustment of the intelligent circuit breaker;

[0159] Local control: The operation and maintenance personnel can also perform opening and closing operations and parameter settings on the intelligent circuit breaker through the control devices such as the touch display screen 7, the lever switch mechanism 10, and the push-button switch 9 on the control module at the site;

[0160] Step Six: Intelligent Circuit Breaker Executes Operations

[0161] Opening and closing operations: After receiving the control command, the control module transmits the command to the intelligent circuit breaker, and the intelligent circuit breaker performs the corresponding opening and closing operations according to the command to cut off or connect the circuit;

[0162] Status feedback: After the intelligent circuit breaker completes the operation, it feeds back its opening and closing state information to the control module. The control module updates the display information on the touch display screen 7 and transmits the status information to the cloud or the PC side through the communication module 5;

[0163] Step Seven: In-depth Data Analysis and Optimization Control

[0164] Cloud data analysis: After receiving the transmitted data, the cloud server uses intelligent algorithms to deeply analyze the collected data, accurately judge the fault type and location, and achieve predictive maintenance;

[0165] Formulation of optimization control strategies: According to the data analysis results, the cloud server formulates optimization control strategies, such as reasonably allocating electric energy and adjusting device operation parameters, to improve the intelligent level of device management and achieve the purpose of energy conservation;

[0166] Strategy distribution and execution: The cloud server distributes the optimization control strategy to the control module through the communication module 5, and the control module adjusts and controls the intelligent circuit breaker, power supply module, etc. according to the strategy to achieve the optimized operation of the device.

[0167] A control method for an intelligent explosion-proof power distribution cabinet system based on the Internet of Things also includes equipment maintenance and energy-saving management, which is specifically as follows:

[0168] Maintenance management: The system, relying on the intelligent monitoring and early warning system, discovers potential problems in advance to achieve predictive maintenance; operation and maintenance personnel perform equipment maintenance and repair according to the fault location and maintenance suggestions prompted by the system; the remote operation and maintenance function enables technicians to remotely view the equipment status and diagnose problems, reducing the frequency and workload of manual maintenance and saving operation and maintenance costs.

[0169] Energy-saving management: The system has energy-saving modes such as intelligent sleep. When the equipment is under low load or no load, it automatically adjusts the operating state to reduce energy consumption. At the same time, according to the real-time monitoring data and intelligent analysis results, it optimizes and controls the electricity consumption of the equipment to avoid unnecessary power loss.

[0170] In summary, compared with the prior art, the technical effects achieved by the intelligent explosion-proof power distribution cabinet system based on the Internet of Things and its control method provided by the present invention are as described in the following table:

[0171]

[0172] As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention 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 the embodiments of the present invention.

Claims

1. An intelligent explosion-proof power distribution cabinet system based on the Internet of Things, comprising a cabinet (11) and a panel (14) for closing the cabinet (11), wherein the panel (14) is provided with a control module, and the cabinet (11) is provided with a power supply module, a sensor module, a control module (2), an intelligent circuit breaker and a communication module (5); the power supply module is provided with a main power supply line (12) for providing power to electronic components in the entire system, the sensor module is used to collect analog electrical signals of current, voltage, power and leakage parameters in the circuit, the control module (2) is used to receive and process the analog electrical signals, and transmit them to a touch display screen (7) on the control module for real-time display, the intelligent circuit breaker is used to execute a power-off operation of a corresponding switch, and the communication module (5) is used to transmit the analog electrical signal processing result to a cloud or a PC.

2. According to the Internet of Things-based intelligent explosion-proof distribution cabinet system of claim 1, it is characterized in that: The control module comprises a lever switch mechanism (10) on a panel (14), the lever switch mechanism (10) being connected to the power supply module and capable of controlling the opening and closing of the power supply module; a touch display screen (7) being electrically connected to the communication module (5) and used for opening and closing operations of the intelligent circuit breaker, parameter setting and viewing various real-time data; a plurality of button switches (9) being electrically connected to the control module (2) and for opening and closing operations of the intelligent circuit breaker through the control module (2); and a power indicator light (8) being electrically connected to the intelligent circuit breaker and used for displaying the opening and closing status of the intelligent circuit breaker.

3. According to the Internet of Things-based intelligent explosion-proof distribution cabinet system of claim 1, it is characterized in that: The power supply module comprises a main switch (3) and a power module (1); the main switch (3) is provided with a main power supply line (12) connected to a 220V mains power supply; the main switch (3) is electrically connected to the power module (1), the control module (2), the intelligent circuit breaker and the communication module (5) respectively through wires; the power module (1) and the control module (2) are connected by six rows of pins for data transmission and power supply.

4. The intelligent explosion-proof power distribution cabinet system based on the Internet of Things and the control method thereof according to claim 1 is characterized in that: The sensor module includes a current transformer, a voltage transformer, a power sensor and a leakage sensor.

5. According to the Internet of Things-based intelligent explosion-proof distribution cabinet system of claim 4, it is characterized in that: The intelligent circuit breaker comprises two intelligent circuit breakers 2P (6), one intelligent circuit breaker 3P (4) and one intelligent circuit breaker 1P (5); one end of the intelligent circuit breaker 3P (4) is electrically connected to the control module (2), and the other end is electrically connected to the communication module (5); the intelligent circuit breaker 2P (6) and the intelligent circuit breaker 1P (5) are electrically connected to the communication module (5) respectively.

6. The intelligent explosion-proof power distribution cabinet system based on the Internet of Things according to claim 5 is characterized in that: One end of the intelligent circuit breaker is also connected to a branch outlet terminal (13) for connecting different electrical terminals.

7. A control method for an intelligent explosion-proof distribution cabinet system based on the Internet of Things, characterized in that: The steps include: Step 1: System Initialization Hardware self-check: After the system is powered on, the power supply module starts to work and supplies power to the entire system. The control module, sensor module, control module, intelligent circuit breaker and communication module (5) perform hardware self-checks in turn to check whether the hardware connections of each module are normal and whether the power supply is stable; Software initialization: After the hardware self-test passes, the software system of each module is initialized; Step 2: Data Collection Sensor data acquisition: The current transformer, voltage transformer, power sensor and leakage sensor in the sensor module begin to collect analog electrical signals of current, voltage, power and leakage parameters in the circuit in real time; Data preprocessing: The analog electrical signals collected by the sensor are preprocessed and converted into a signal form suitable for transmission and processing; Step 3: Data Transmission and Processing Data is transmitted to the control module (2): the pre-processed analog electrical signal is transmitted to the control module (2); the control module (2) processes: after receiving the analog electrical signal, the control module (2) performs analog-to-digital conversion to convert the analog signal into a digital signal, and performs preliminary analysis on the digital signal to extract key parameter information; Data transmission to the control module: the control module (2) transmits the processed digital signal to the touch screen (7) on the control module, and at the same time, transmits the data to the cloud or PC through the communication module (5) for further processing and storage; Step 4: Data display and warning Data display: The touch screen (7) displays the current, voltage, power and leakage parameter information in the circuit in real time, as well as the opening and closing status of the intelligent circuit breaker; Abnormal warning: The control module analyzes and judges the collected parameter information according to the preset threshold value and algorithm. If abnormal parameters are found, such as excessive current, too high or too low voltage, or leakage, the touch screen (7) will send out an audible and visual alarm signal to alert the operation and maintenance personnel; Step 5: Smart Circuit Breaker Execution Opening and closing operation: After receiving the control command, the control module transmits the command to the intelligent circuit breaker, and the intelligent circuit breaker performs the corresponding opening and closing operation according to the command to cut off or connect the circuit; Status feedback: After the intelligent circuit breaker completes the operation, its opening and closing status information is fed back to the control module, and the control module updates the display information on the touch screen (7) and transmits the status information to the cloud or PC through the communication module (5); Step 6: In-depth data analysis and optimization and control Cloud data analysis: After receiving the transmitted data, the cloud server uses intelligent algorithms to conduct in-depth analysis of the collected data, accurately determine the fault type and location, and achieve predictive maintenance; Optimization and control strategy formulation: Based on the data analysis results, the cloud server formulates optimization and control strategies, such as reasonable allocation of power and adjustment of equipment operating parameters; Strategy issuance and execution: The cloud server sends the optimization and control strategy to the control module through the communication module (5), and the control module adjusts and controls the intelligent circuit breaker and power supply module according to the strategy.

8. According to the control method of the intelligent explosion-proof power distribution cabinet system based on the Internet of Things as described in claim 7, it is characterized in that: The device also includes remote and local control functions: the operation and maintenance personnel can access the system remotely through the cloud or PC to check the device status and diagnose problems, and send control instructions to the control module through the communication module (5) to realize the opening and closing operations and parameter adjustment of the intelligent circuit breaker; the operation and maintenance personnel can also perform opening and closing operations and parameter setting of the intelligent circuit breaker on site through the control devices of the touch display screen (7), the lever switch mechanism (10) and the button switch (9) on the control module.

9. According to the control method of the intelligent explosion-proof power distribution cabinet system based on the Internet of Things as described in claim 7, it is characterized in that: It also includes equipment maintenance and energy-saving management functions; the system relies on intelligent monitoring and early warning systems to detect potential problems in advance and achieve predictive maintenance; the system has energy-saving modes such as intelligent sleep, which automatically adjusts the operating status when the equipment is under low load or no load to reduce energy consumption.

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