Cross-domain power equipment operation power-off management system

Abstract

The invention provides a cross-domain power equipment operation power-off management system, which belongs to the technical field of power equipment management, aims to solve the problem of energy waste caused by continuous connection of a power supply part with a power supply after power equipment stops working, and comprises a state monitoring module, a data analysis and decision module, a power-off control module, a communication module and a power management module. The state monitoring module collects equipment operation parameters, the data analysis and decision-making module judges the equipment state and controls power failure, the communication module achieves internal and external communication, the power management module guarantees power supply and energy conservation of the system, and in addition, the system can extend temperature and pressure sensors and can dynamically adjust the equipment parameter range. Various power-off execution elements and communication technologies are adopted, and the functions of energy-saving threshold value adjustment and storage battery protection are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of power equipment management, and particularly relates to a cross-domain power equipment operation power-off management system. Background Art

[0002] In today's society, various electrical equipment are widely used in various fields such as industry, commerce, and households. However, there is a serious problem in general, that is, after the equipment stops working, its power supply part is still connected to the power source. For example, in industrial production, an oil pumping unit obtains electric energy by connecting to the national power grid through a transformer. When the oil pumping unit stops operating, the transformer still remains connected to the power grid, resulting in power loss. Similarly, the same situation exists in many other electrical equipment such as various motor equipment and household appliances in daily life. The root cause lies in the lack of intelligent and automatic power-off control mechanisms in traditional circuit connection designs. This continuous power loss accumulates during the long-term use of a large number of equipment, causing huge energy waste and having an extremely adverse impact on the effective utilization of energy and sustainable development.

[0003] Therefore, based on the above technical problems, it is necessary to design a cross-domain power equipment operation power-off management system to solve the problem of energy waste caused by the continuous connection of the power supply part to the power source after the power equipment stops working in the prior art, and to achieve automatically cutting off unnecessary power connections according to the working state of the equipment and improving energy utilization efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a cross-domain power equipment operation power-off management system to solve the problem of energy waste caused by the continuous connection of the power supply part to the power source after the power equipment stops working in the prior art, and to achieve automatically cutting off unnecessary power connections according to the working state of the equipment and improving energy utilization efficiency.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A cross-domain power equipment operation power-off management system, characterized by comprising:

[0007] A status monitoring module, which has a parameter acquisition unit. The parameter acquisition unit is equipped with a current sensor, a vibration sensor, a voltage sensor, and a power sensor; for industrial motor equipment, the current sensor is used to real-time monitor the working current of the motor, and a speed sensor is installed on the motor shaft to obtain speed information. For household appliances, the voltage sensor and the power sensor are installed at the power input end of the equipment to collect working voltage and power data; it also has a data transmission unit, which uses data lines to connect or wireless communication technologies such as Bluetooth and Wi-Fi to transmit the data obtained by the parameter acquisition unit to the data analysis and decision-making module;

[0008] The data analysis and decision-making module includes a data processing unit. This unit uses a high-performance microprocessor as the core, receives the data transmitted by the status monitoring module, and applies pre-written data analysis algorithms to analyze and process the collected parameters such as current, rotational speed, voltage, and power, extracting the operating characteristics of the device. It also includes a status judgment unit. Based on the analysis results of the data processing unit, it compares the preset parameter ranges such as the current range, rotational speed range, voltage range, and power range when the device is operating normally, and uses a preset device status judgment model to determine whether the power device is in a stopped working state. If the device stops working, it sends a power-off instruction to the power-off control module. If the device is working normally, it maintains the power supply state of the device.

[0009] The power-off control module is provided with an instruction receiving unit, which is communicatively connected to the status judgment unit of the data analysis and decision-making module to receive the power-off instruction; and a power-off execution unit, which uses relays, contactors, etc. as execution elements. The control end of the relay is connected to the instruction receiving unit, and the load end is connected to the power supply line of the power device. When receiving the power-off instruction, the relay operates to cut off the power supply line, realizing the power-off of the power device. When receiving the device restart signal, it restores the connection of the power supply line.

[0010] The communication module includes an internal communication unit for realizing the communication connection between the various modules of the system, ensuring the smooth transmission of data between the status monitoring module, the data analysis and decision-making module, the power-off control module, and the power management module; and an external communication unit. In an industrial scenario, the system is connected to the enterprise internal network through Ethernet and communicates with the remote monitoring center. In a home scenario, Wi-Fi or Bluetooth technology is selected to communicate with the user's smartphone or smart home control center, sending and receiving information such as the device operating status and power-off operation records according to the corresponding communication protocol, and at the same time receiving external control instructions.

[0011] The power management module has a power supply unit that uses a switching power supply to provide a stable DC power supply for the various modules of the system to ensure the normal operation of the system; it has an energy-saving control unit that sets up a power monitoring circuit to monitor the system power consumption in real time. When the device stops working and the system enters the sleep state, it automatically reduces the output voltage to reduce its own power consumption; it also has a backup power supply unit that is equipped with a rechargeable battery as the backup power supply, which is connected to the main power supply through a charging circuit. When the main power supply is normal, it charges the battery. When the main power supply fails or is powered off, it automatically switches to the battery power supply to ensure that the device status monitoring and power-off control functions are not affected.

[0012] As a preferred solution of the present invention, the parameter acquisition unit of the status monitoring module can be expandably equipped with temperature sensors and pressure sensors for different types of power devices to collect temperature parameters and pressure parameters during the operation of the power device, and transmit them to the data analysis and decision-making module through the data transmission unit.

[0013] As a preferred embodiment of the present invention, in the state judgment unit of the data analysis and decision-making module, the parameter range during normal operation of the device can be dynamically adjusted and updated according to the device type, model, and actual operating conditions.

[0014] As a preferred embodiment of the present invention, in the power-off execution unit of the power-off control module, in addition to relays and contactors, solid-state relays can also be used as the execution element to achieve the on / off control of the power supply line of the power equipment.

[0015] As a preferred embodiment of the present invention, in the external communication unit of the communication module, 4G / 5G communication technology can be extended and adopted in industrial scenarios to achieve a faster and more stable communication connection with the remote monitoring center.

[0016] As a preferred embodiment of the present invention, in the energy-saving control unit of the power management module, when the system power consumption is lower than the preset energy-saving threshold, the output voltage of the switching power supply is automatically reduced, and the energy-saving threshold can be set and adjusted according to the actual operating requirements of the system.

[0017] As a preferred embodiment of the present invention, in the backup power supply unit of the power management module, the intelligent charging chip used in the charging circuit has overcharge protection and over-discharge protection functions to prevent the storage battery from being damaged due to overcharging or over-discharging.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. In this solution, by setting the status monitoring module to collect the device operation parameters in real time, the data analysis and decision-making module judges the device working status based on these parameters. Once the device stops working, the power-off control module automatically cuts off the power supply line. For example, in industrial motor equipment and household appliances, it can timely stop the power consumption after the device stops working, effectively avoiding the power loss of the power supply part after the power equipment stops working, greatly improving the energy utilization efficiency, and reducing energy waste;

[0020] The design of each module of the system is universal. The status monitoring module configures corresponding sensors to collect parameters for different types of power equipment, and the communication module selects appropriate communication methods according to industrial or household scenarios, etc. This enables the system to achieve effective power-off management for both large motor equipment in industrial production and household appliances in daily life, and has wide applicability and promotion value.

[0021] 2. In this solution, by using a high-performance microprocessor and a pre-written algorithm, the status monitoring module collects data, the data analysis and decision-making module processes the data and judges the device status, and the power-off control module performs the power-off operation according to the instruction. The whole process requires no manual intervention. For example, by establishing a device status judgment model through machine learning algorithms, the working status of the device can be accurately judged, realizing intelligent device management, improving management efficiency, and reducing labor costs.

[0022] Regarding the design of the communication module, in industrial scenarios, through Ethernet or 4G / 5G communication technologies, and in home scenarios, through Wi-Fi or Bluetooth technologies, the system realizes communication with the remote monitoring center, the user's smartphone, or the smart home control center. It can upload information such as the device operation status and power-off operation records in real time, and receive external control instructions, facilitating unified management and scheduling of the devices, and improving the flexibility and convenience of device management. Brief Description of the Drawings

[0023] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0024] Figure 1 It is a flow distribution block diagram of a cross-domain power equipment operation power-off management system of the present invention. Detailed Embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment 1

[0027] Please refer to Figure 1 , the present invention provides the following technical solutions:

[0028] A cross-domain power equipment operation power-off management system, characterized in that it includes:

[0029] Status monitoring module, which has a parameter acquisition unit. The parameter acquisition unit is equipped with a current sensor, a vibration sensor, a voltage sensor, and a power sensor. For industrial motor equipment, the current sensor is used to monitor the working current of the motor in real time, and a speed sensor is installed on the motor shaft to obtain speed information. For household appliances, the voltage sensor and the power sensor are installed at the power input end of the equipment to collect working voltage and power data. It also has a data transmission unit, which uses a data cable connection or wireless communication technologies such as Bluetooth and Wi-Fi to transmit the data obtained by the parameter acquisition unit to the data analysis and decision-making module;

[0030] Data analysis and decision-making module, which includes a data processing unit. This unit uses a high-performance microprocessor as the core, receives the data transmitted from the status monitoring module, and uses pre-written data analysis algorithms to analyze and process the collected parameters such as current, speed, voltage, and power, and extracts the operating characteristics of the equipment. It also includes a status judgment unit, which, based on the analysis results of the data processing unit, compares the preset parameter ranges such as the current range, speed range, voltage range, and power range when the equipment is working normally, and uses a preset equipment status judgment model to judge whether the power equipment is in a stopped working state. If the equipment stops working, it sends a power-off instruction to the power-off control module. If the equipment is working normally, it maintains the power supply state of the equipment;

[0031] Power-off control module, which has an instruction receiving unit, which is communicatively connected to the status judgment unit of the data analysis and decision-making module to receive the power-off instruction; and a power-off execution unit, which uses a relay, a contactor, etc. as the execution element. The control end of the relay is connected to the instruction receiving unit, and the load end is connected to the power supply line of the power equipment. When the power-off instruction is received, the relay operates to cut off the power supply line and achieve power-off of the power equipment. When the equipment restart signal is received, the connection of the power supply line is restored;

[0032] Communication module, which includes an internal communication unit for realizing the communication connection between the various modules of the system to ensure the smooth transmission of data between the status monitoring module, the data analysis and decision-making module, the power-off control module, and the power management module; it also includes an external communication unit. In an industrial scenario, the system is connected to the enterprise internal network through Ethernet and communicates with the remote monitoring center. In a home scenario, Wi-Fi or Bluetooth technology is selected to communicate with the user's smartphone or smart home control center, and sends and receives information such as the equipment operating status and power-off operation records according to the corresponding communication protocol, and at the same time receives external control instructions;

[0033] The power management module has a power supply unit that uses a switched-mode power supply to provide a stable DC power supply for each module of the system, ensuring the normal operation of the system. It also has an energy-saving control unit that sets up a power monitoring circuit to monitor the system power consumption in real time. When the device stops working and the system enters the sleep state, it automatically reduces the output voltage to reduce its own power consumption. Additionally, it has a backup power supply unit equipped with a rechargeable battery as the backup power supply, which is connected to the main power supply through a charging circuit. When the main power supply is normal, it charges the battery, and when the main power supply fails or is cut off, it automatically switches to battery power supply to ensure that the device status monitoring and power-off control functions are not affected.

[0034] In a specific embodiment of the present invention, the implementation description of the status monitoring module

[0035] Parameter acquisition unit:

[0036] Industrial motor equipment: The current sensor selection for industrial motor equipment needs to be based on the rated current of the motor. For example, for a motor with a rated current of 100A, a Hall effect current sensor with a range of 150A is selected to ensure measurement accuracy and safety margin. It is closely wound around the motor power cable to ensure accurate capture of the current signal. The speed sensor uses a magnetoelectric speed sensor. When installing, align the sensor head with the toothed disk on the motor shaft to ensure that the gap between the sensor and the toothed disk is between 0.5 - 1mm, so as to stably obtain the motor speed information.

[0037] Household appliances: The voltage sensor can select a resistive voltage divider type voltage sensor. According to the common working voltage of household appliances (such as 220V), the voltage dividing resistors are reasonably configured and connected between the live wire and the neutral wire at the power input end of the device. The power sensor uses a module based on a dedicated power measurement chip. For example, the ADE7755 chip is used. Its current sampling terminal is connected in series in the live wire, and the voltage sampling terminal is connected across the live wire and the neutral wire to accurately collect the working voltage and power data.

[0038] Data transmission unit:

[0039] Wired transmission: In an industrial scenario, if the device is close to the data analysis and decision-making module and wiring is convenient, shielded twisted pair is selected as the data cable. Wiring is carried out according to the standard RS-485 communication protocol. Connect the data output terminal of the sensor to the RS-485 converter, and then connect it to the RS-485 interface of the data analysis and decision-making module through the converter.

[0040] Wireless Transmission: In home scenarios or areas with difficult wiring in industry, for sensors with Bluetooth capabilities, such as some intelligent power sensors, they are connected to the data analysis and decision-making module equipped with a Bluetooth receiving module through Bluetooth pairing, and the pairing password and communication frequency (such as the 2.4GHz band) are set. For sensors that support Wi-Fi transmission, they are connected to the home or enterprise internal Wi-Fi network, and the corresponding Wi-Fi receiving module is installed in the data analysis and decision-making module, and the network parameters are configured to ensure stable data transmission.

[0041] Implementation Instructions for the Data Analysis and Decision-Making Module:

[0042] Data Processing Unit:

[0043] Hardware Selection: Select a high-performance microprocessor with fast operation speed and large storage capacity, such as the STM32H7 series microprocessors. This series of microprocessors has rich peripheral interfaces and can meet the data reception requirements of multiple sensors. Connect the serial port, SPI interface, etc. of the microprocessor to the data transmission unit of the status monitoring module to ensure that data can be transmitted to the microprocessor quickly and accurately.

[0044] Algorithm Writing: Pre-write efficient data analysis algorithms. For example, use the Kalman filter algorithm to filter the fluctuating data such as current and rotation speed collected, and remove noise interference. Analyze the harmonic components of power data through the Fourier transform algorithm to extract the operating characteristics of the equipment. The algorithm is written in C language and is compiled and debugged using the development environment of the microprocessor (such as Keil MDK).

[0045] Status Judgment Unit:

[0046] Parameter Range Setting: For different types of equipment, establish a database of normal operating parameters. For example, for a certain type of industrial motor, the normal operating current range is set to 80 - 120A, and the rotation speed range is set to 1450 - 1550 rpm. For a certain brand of air conditioner, the normal operating voltage range is set to 210 - 230V, and the power range in the cooling mode is set to 1500 - 2000W. These parameter ranges can be calibrated and adjusted according to the actual operating conditions of the equipment.

[0047] Judgment Model Establishment: Use machine learning algorithms (such as support vector machine algorithms) to establish an equipment status judgment model. Collect a large number of parameter samples when the equipment is working normally and stopped, and train and optimize the model so that it can accurately judge the working status of the equipment based on the analysis results of the data processing unit. After the model training is completed, it is stored in the flash memory of the microprocessor for the status judgment unit to call.

[0048] Explanation of the Power-Off Control Module;

[0049] Instruction receiving unit:

[0050] Communication interface setting: It is connected to the status judgment unit of the data analysis and decision-making module through serial communication. In the microprocessor of the status judgment unit, configure the serial communication parameters, such as the baud rate is set to 9600bps, the data bits are 8 bits, the stop bit is 1 bit, and there is no parity check. In the instruction receiving unit of the power-off control module, the same serial communication parameters are set to ensure that the power-off instruction can be accurately received.

[0051] Power-off execution unit:

[0052] Relay selection and installation: Select a relay with a suitable specification according to the rated voltage and current of the power equipment. For example, for a device power supply line with 220V and 10A, select a relay with a rated voltage of 220V and a contact rated current of 15A. Connect the control end of the relay to the output pin of the instruction receiving unit, and the load end is connected in series in the power supply line of the power equipment to ensure that the relay can reliably cut off the power supply line when receiving the power-off instruction.

[0053] Contactor application: In the scenario of high-power equipment in industry, a contactor is used as the power-off execution component. For example, for a motor power supply line with a rated voltage of 380V and a rated current of 200A, select a corresponding specification of AC contactor. The coil control end of the contactor is connected to the amplification drive circuit of the instruction receiving unit (because the contactor coil current is large and a drive circuit is required), and the main contacts are connected in series in the power supply line to achieve reliable power-off and power-on control of high-power equipment.

[0054] Communication module description;

[0055] Internal communication unit:

[0056] Communication bus selection: Inside the system, the Controller Area Network (CAN) bus is used for communication between modules. The CAN bus has the advantages of high reliability and fast transmission rate. Integrate a CAN controller and a CAN transceiver, such as the TJA1050 transceiver, in each module. Connect the CAN transceivers of each module into a bus network through twisted pair wires, and set the CAN node ID of each module to ensure accurate data transmission between the status monitoring module, the data analysis and decision-making module, the power-off control module, and the power management module.

[0057] External communication unit:

[0058] Industrial scenario: The system is connected to the enterprise internal network through an Ethernet switch. In the communication module of the system, an Ethernet controller (such as a W5500 chip) is integrated and connected to the RJ45 interface of the enterprise internal network switch. Network parameters such as IP address, subnet mask, and gateway are configured to ensure that the system can communicate stably with the remote monitoring center, upload information such as device operating status and power-off operation records in real time, and receive remote control instructions.

[0059] Home scenario: If Wi-Fi technology is selected, a Wi-Fi module (such as an ESP8266 module) is integrated in the communication module. The Wi-Fi module is connected to the home wireless router, and the SSID and password of the router are configured. The corresponding APP is installed on the user's smartphone or smart home control center, and the APP communicates with the communication module of the system through the Wi-Fi network for data interaction to achieve remote monitoring and control of the device. If Bluetooth technology is adopted, the Bluetooth module in the communication module is paired and connected with the user's smartphone through Bluetooth, and data transmission is carried out using the Bluetooth communication protocol.

[0060] Power management module description;

[0061] Power supply unit:

[0062] Switching power supply selection: According to the total power requirements of each module of the system, a switching power supply with an appropriate power is selected. For example, if the total power of each module of the system is 50W, a switching power supply with an output power of 60W is selected to ensure sufficient power margin. The input voltage of the switching power supply is selected according to the application scenario (such as 220V mains input), and the output voltage is set according to the requirements of each module (such as 5V, 3.3V, etc.). The output end of the switching power supply is connected to the power input end of each module through a voltage stabilizing and filtering circuit to ensure a stable DC power supply for the system.

[0063] Energy-saving control unit:

[0064] Power monitoring circuit design: A power monitoring circuit is composed of a voltage sampling resistor and a current sampling resistor. The voltage sampling resistor is connected in series in the switching power supply output voltage loop to obtain the output voltage signal through voltage division; the current sampling resistor is connected in series in the load loop to convert the current signal into a voltage signal. These voltage signals are input to the ADC (Analog-to-Digital Converter) interface of the microprocessor, and the microprocessor monitors the system power consumption in real time.

[0065] Energy-saving control logic: An energy-saving control program is written in the microprocessor. When the device stops working and the system enters the sleep state, if it is detected that the system power consumption is lower than the preset energy-saving threshold (such as 5W), the microprocessor adjusts the output voltage of the switching power supply through the PWM (Pulse Width Modulation) control signal to reduce its power consumption. The energy-saving threshold can be set and adjusted by modifying the parameters in the program according to the actual operation requirements of the system.

[0066] Backup power supply unit:

[0067] Battery selection: Select a rechargeable battery with appropriate capacity according to the backup power supply time and power required by the system. For example, if the system needs to continue to work for 2 hours when the main power fails and the power is 30W, a lead-acid battery or lithium battery with a capacity of 60Wh should be selected. Connect the battery to the main power supply through the charging circuit.

[0068] Charging circuit design: The charging circuit is designed based on a dedicated charging chip, such as the TP4056 charging chip to charge the lithium battery. The charging chip can automatically adjust the charging current and voltage according to the battery power status, and has overcharge protection and over-discharge protection functions. When the main power supply is normal, the charging chip controls the charging of the battery; when the main power supply fails or the power is cut off, the switching circuit automatically switches the power supply to the battery to ensure that the equipment status monitoring and power-off control functions are not affected.

[0069] For details, please refer to Figure 1 The parameter acquisition unit of the state monitoring module can be expanded to be equipped with temperature sensors and pressure sensors for different types of power equipment, which are used to collect temperature parameters and pressure parameters during the operation of the power equipment and transmit them to the data analysis and decision module through the data transmission unit.

[0070] In this embodiment: For the selection of temperature sensors, if applied to industrial motor equipment, considering the high temperature environment when the motor is running, a K-type thermocouple temperature sensor can be selected, and its measurement range can reach 0-1300°C, which can meet the temperature monitoring requirements of motor windings, bearings and other parts. During installation, use thermal conductive glue to tightly fit the measuring end of the temperature sensor to the surface of the motor winding or the bearing seat to ensure that the temperature changes can be accurately sensed. For pressure sensors, in industrial pump power equipment, if the pipeline pressure is monitored, a diffused silicon pressure sensor can be selected, and a suitable range can be selected according to the design pressure range of the pipeline, such as 0-10MPa. The pressure sensor is installed at the pressure measuring point of the pipeline and connected to the pipeline through a pressure pipe. The temperature parameters and pressure parameters collected by these temperature sensors and pressure sensors will be transmitted according to the established transmission method of the data transmission unit. If wired transmission is used, connect the data output end of the temperature and pressure sensor to the RS-485 converter, and access the RS-485 interface of the data analysis and decision-making module through a shielded twisted pair cable; if wireless transmission is used, pair the temperature and pressure sensors that support Bluetooth or Wi-Fi with the data analysis and decision-making module or set up a network connection accordingly to ensure smooth data transmission.

[0071] For details, please refer to Figure 1, in the status judgment unit of the data analysis and decision-making module, the parameter range during normal operation of the device can be dynamically adjusted and updated according to the device type, model, and actual operating conditions.

[0072] In this embodiment: To achieve the dynamic adjustment and update of the parameter range during normal operation of the device, it is first necessary to establish a parameter management database, which can be stored in the external storage chip of the microprocessor in the data analysis and decision-making module, such as SPI Flash. When the device type or model changes, or the actual operating conditions change significantly, the parameter range in the database can be modified through an external device (such as a computer connected to the system) or a remote control instruction. For example, if an industrial motor has been technically transformed and its normal operating speed range has increased, the modified speed range data can be written into the parameter management database by connecting the management software on the computer to the system through the communication module. When the status judgment unit judges the device status, it will read the corresponding normal operating parameter range of the device from this database in real time and compare it with the real-time parameters processed by the data processing unit, so as to make an accurate device status judgment.

[0073] Specifically, please refer to Figure 1 , in the power-off execution unit of the power-off control module, in addition to relays and contactors, solid-state relays can also be used as the execution element to realize the on-off control of the power supply line of the power equipment.

[0074] In this embodiment: If a solid-state relay is used as the power-off execution element, a solid-state relay with a suitable specification needs to be selected according to the rated voltage and current of the power equipment. For example, for a device power supply line with 220V and 5A, a solid-state relay with a rated voltage of 220V and a rated current of 10A can be selected to ensure that it can reliably connect and disconnect the circuit. The control end of the solid-state relay is connected to the output pin of the instruction receiving unit, just like the connection method of the relay. Since the drive current of the solid-state relay is relatively small, it can generally be directly driven by the microprocessor pin of the instruction receiving unit without an additional amplification drive circuit. In practical applications, for some devices sensitive to electromagnetic interference, the solid-state relay has no contact action and can effectively reduce electromagnetic interference, which has more advantages than traditional relays and contactors. When the power-off control module receives a power-off instruction, the solid-state relay quickly acts to cut off the power supply line of the power equipment and realize power-off control; when it receives a device restart signal, the solid-state relay resumes the conducting state and restores power supply to the device.

[0075] Specifically, please refer to Figure 1 , in the external communication unit of the communication module, 4G / 5G communication technology can be extended and adopted in industrial scenarios to achieve a faster and more stable communication connection with the remote monitoring center.

[0076] In this embodiment: In the industrial scenario where 4G / 5G communication technology is adopted, a 4G / 5G communication module is integrated into the communication module, such as Quectel EC20 (4G) or ZTE MC888S (5G) module. Connect the antenna interfaces of these modules to an external 4G / 5G antenna to ensure good signal reception and transmission. The communication module is connected to the microprocessor of the system through a serial port or a USB interface to achieve data communication. When establishing a connection with the remote monitoring center, corresponding 4G / 5G network access parameters, such as APN (Access Point Name), etc., need to be set in the monitoring center. The system uploads information such as the device operation status and power-off operation records to the remote monitoring center quickly and stably through the 4G / 5G communication module according to the communication protocol of the operator, and at the same time receives the control instructions sent by the remote monitoring center. Compared with Ethernet communication, 4G / 5G communication is not restricted by wiring and can realize remote monitoring and control of devices in mobile or remote areas, greatly improving the flexibility and application scope of the system.

[0077] For details, please refer to Figure 1 , in the energy-saving control unit of the power management module, when the system power consumption is lower than the preset energy-saving threshold, the output voltage of the switching power supply is automatically reduced, and the energy-saving threshold can be set and adjusted according to the actual operation requirements of the system.

[0078] In this embodiment: To achieve the setting and adjustment of the energy-saving threshold, a human-machine interface can be set in the system, for example, a control panel composed of a small liquid crystal display (LCD) and several buttons is adopted. Through button operations, the current energy-saving threshold can be displayed on the LCD and modified. The modified energy-saving threshold data is stored in the internal register or EEPROM of the microprocessor of the power management module. When the system is running, the power monitoring circuit continuously monitors the system power consumption, and the collected voltage signal is input to the microprocessor after being converted by the ADC. The microprocessor compares the real-time power consumption with the stored energy-saving threshold. If the system power consumption is lower than the energy-saving threshold, the microprocessor immediately adjusts the pulse width of the switching power supply through the PWM control signal to reduce the output voltage of the switching power supply, thereby reducing the system power consumption. For example, when the system is operating at a low load and the power consumption is reduced to below the preset energy-saving threshold of 4W, the microprocessor adjusts the PWM signal to reduce the output voltage of the switching power supply from 5V to 4.5V, effectively achieving the purpose of energy saving.

[0079] For details, please refer to Figure 1 , in the backup power supply unit of the power management module, the intelligent charging chip used in the charging circuit has overcharge protection and over-discharge protection functions to prevent the storage battery from being damaged due to overcharging or over-discharging.

[0080] In this embodiment: An intelligent charging chip with overcharge protection and over-discharge protection functions (such as the TP4056 chip) is used to charge the storage battery. The input pin of the TP4056 chip is connected to the main power supply, and the output pin is connected to the positive and negative electrodes of the storage battery. The control circuit inside the chip will monitor the voltage and current status of the storage battery in real time. When the voltage of the storage battery is lower than the set over-discharge protection threshold (for example, 10.5V for lead-acid batteries and 2.75V for lithium batteries), the chip will cut off the discharge circuit to prevent the storage battery from being damaged by excessive discharge. When charging the storage battery, the chip will automatically adjust the charging current and voltage according to the power status of the storage battery. In the initial stage of charging, a constant current charging mode is adopted to charge the storage battery at a relatively fast speed; when the voltage of the storage battery is close to the full charge voltage (for example, 14.4V for lead-acid batteries and 4.2V for lithium batteries), it switches to a constant voltage charging mode to prevent overcharging. When the storage battery is fully charged, the chip automatically stops charging, effectively protecting the storage battery, extending its service life, and ensuring that when the main power supply fails or power is cut off, the backup power supply can reliably supply power for the device status monitoring and power-off control functions.

[0081] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cross - domain power - off management system for the operation of power equipment, characterized in that, Including: A status monitoring module, which has a parameter acquisition unit. The parameter acquisition unit is equipped with a current sensor, a vibration sensor, a voltage sensor, and a power sensor; For industrial motor equipment, the current sensor is used to monitor the working current of the motor in real time, and the speed sensor is installed on the motor shaft to obtain speed information. For household appliances, the voltage sensor and the power sensor are installed at the power input end of the equipment to collect working voltage and power data; It also has a data transmission unit, which uses a data cable connection or wireless communication technologies such as Bluetooth and Wi-Fi to transmit the data obtained by the parameter acquisition unit to the data analysis and decision-making module; The data analysis and decision-making module includes a data processing unit, which uses a high-performance microprocessor as the core, receives the data transmitted by the status monitoring module, and uses pre-written data analysis algorithms to analyze and process the collected parameters such as current, speed, voltage, and power, and extracts the operation characteristics of the equipment; It also includes a status judgment unit, which, based on the analysis results of the data processing unit, compares the preset parameter ranges such as the current range, speed range, voltage range, and power range when the equipment is working normally, and uses a preset equipment status judgment model to judge whether the power equipment is in a stopped working state. If the equipment stops working, it sends a power-off instruction to the power-off control module. If the equipment is working normally, it maintains the power supply state of the equipment; The power-off control module is provided with an instruction receiving unit, which is communicatively connected to the status judgment unit of the data analysis and decision-making module and receives the power-off instruction; And a power-off execution unit, which uses a relay, a contactor, etc. as the execution element. The control end of the relay is connected to the instruction receiving unit, and the load end is connected to the power supply line of the power equipment. When the power-off instruction is received, the relay acts to cut off the power supply line and realize the power-off of the power equipment. When the equipment restart signal is received, the power supply line connection is restored; The communication module includes an internal communication unit, which is used to realize the communication connection between the system modules and ensure the smooth transmission of data between the status monitoring module, the data analysis and decision-making module, the power-off control module, and the power management module; It also includes an external communication unit. In an industrial scenario, the system is connected to the enterprise internal network through Ethernet and communicates with the remote monitoring center. In a home scenario, Wi-Fi or Bluetooth technology is selected to communicate with the user's smart phone or smart home control center, and send and receive information such as the equipment operation status and power-off operation records according to the corresponding communication protocol, and at the same time receive external control instructions; The power management module has a power supply unit, which uses a switching power supply to provide a stable DC power supply for each module of the system to ensure the normal operation of the system; It has an energy-saving control unit, which sets up a power monitoring circuit to monitor the system power consumption in real time. When the equipment stops working and the system enters the sleep state, it automatically reduces the output voltage to reduce its own power consumption; It also has a backup power supply unit, which is equipped with a rechargeable battery as the backup power supply, and is connected to the main power supply through a charging circuit. When the main power supply is normal, it charges the battery. When the main power supply fails or is powered off, it automatically switches to the battery power supply to ensure that the equipment status monitoring and power-off control functions are not affected.

2. The cross - domain power equipment operation power - off management system according to claim 1, characterized in that: For different types of power equipment, the parameter acquisition unit of the state monitoring module can be expandably equipped with temperature sensors and pressure sensors to collect temperature parameters and pressure parameters during the operation of the power equipment, and transmit them to the data analysis and decision-making module through the data transmission unit.

3. The cross-domain power equipment operation power-off management system according to claim 2, characterized in that: In the state judgment unit of the data analysis and decision-making module, the parameter range during normal operation of the equipment can be dynamically adjusted and updated according to the equipment type, model, and actual operating conditions.

4. The cross - domain power equipment operation power - off management system according to claim 3, characterized in that: In the power-off execution unit of the power-off control module, in addition to relays and contactors, solid-state relays can also be used as execution elements to realize the on-off control of the power supply line of the power equipment.

5. The cross-domain power equipment operation power-off management system according to claim 4, characterized in that: In the industrial scenario, the external communication unit of the communication module can be expandably equipped with 4G / 5G communication technology to achieve a faster and more stable communication connection with the remote monitoring center.

6. The cross - domain power equipment operation power - off management system according to claim 5, characterized in that: In the energy-saving control unit of the power management module, when the system power consumption is lower than the preset energy-saving threshold, the output voltage of the switching power supply is automatically reduced, and the energy-saving threshold can be set and adjusted according to the actual operating requirements of the system.

7. The cross - domain power equipment operation power - off management system according to claim 6, characterized in that: In the backup power supply unit of the power management module, the intelligent charging chip used in the charging circuit has overcharge protection and over-discharge protection functions to prevent the storage battery from being damaged due to overcharging or over-discharging.

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