Enclosed fuse with intelligent monitoring function

Abstract

The invention belongs to the technical field of data processing, and relates to an enclosed fuse with an intelligent monitoring function, which comprises an acquisition module and a data acquisition on-line transmission module which are electrically connected, the acquisition module is used for acquiring data, and the data acquisition on-line transmission module is used for receiving the data acquired by the acquisition module and transmitting the data to the acquisition module. The acquisition module comprises a first MCU, a current detection circuit, a temperature detection circuit and a state detection circuit, the current detection circuit, the temperature detection circuit and the state detection circuit are electrically connected with the first MCU, and the data acquisition on-line transmission module comprises a second MCU, a Beidou module, a wireless communication module, an LED indication module, a power supply module and a serial port communication module, and the Beidou module, the wireless communication module, the LED indication module, the power supply module and the serial port communication module are electrically connected with the second MCU. The system can carry out real-time data acquisition and transmission, has the capability of efficient data processing and analysis, has accurate time and position information, can realize remote monitoring and alarm functions, and is easy to expand and upgrade.

Description

Technical Field

[0001] The present invention relates to the technical field of data processing, and more particularly to a closed fuse with an intelligent monitoring function. Background Art

[0002] In the existing power distribution system, fuses are important protective components, and their safe and stable operation is crucial to the reliability of the entire power system. Traditional fuse detection methods mostly rely on manual inspections, which are not only inefficient, but also difficult to achieve real-time monitoring of the fuse status, and unable to detect potential fault hazards in a timely manner. Summary of the invention

[0003] In view of the above-mentioned defects of the prior art, the present invention provides a closed fuse with intelligent monitoring function, comprising:

[0004] An intelligent detection module and a data acquisition online transmission module electrically connected, the intelligent detection module is used to collect data, the data acquisition online transmission module is used to receive data collected from the intelligent detection module, the intelligent detection module includes a first MCU, a current detection circuit, a temperature detection circuit and a state detection circuit electrically connected to the first MCU, the first MCU is used to control the current detection circuit, the temperature detection circuit and the state detection circuit, the current detection circuit is used to monitor the current condition of the device in real time, the temperature detection circuit is used to detect the working temperature of the device in real time to provide a reference for the control of the first MCU, and the state detection circuit is used to monitor the operating state of the fuse;

[0005] The data acquisition online transmission module includes a second MCU, a Beidou module, a wireless communication module, an LED indication module, a power module and a serial communication module electrically connected to the second MCU. The second MCU is used to control the Beidou module, the wireless communication module and the LED indication module to process the received data. The Beidou module is used to receive the positioning signal sent by the Beidou satellite system, and obtain the current longitude and latitude and time information by parsing these signals. The wireless communication module is used for wireless transmission with external electronic devices to achieve remote data interaction and monitoring. The LED indication module is used to provide the user with an intuitive indication of the working status and error prompts of the device through the on and off or flashing status of the LED indicator light. The power module is used to provide power supply to ensure the stable operation of the second MCU, the Beidou module, the wireless communication module, the LED indication module, the power module and the serial communication module. The serial communication module is used for serial communication with external electronic devices.

[0006] Preferably, the first MCU includes: any one of STM32F103C series and GD32F103.

[0007] Preferably, the current detection circuit includes: pin 1 of the electric energy metering chip U3 is respectively connected to one end of the resistor R23 and one end of the capacitor C11, pin 2 of the electric energy metering chip U3 is respectively connected to one end of the capacitor C12 and one end of the resistor R21, pin 3 of the electric energy metering chip U3 is respectively connected to one end of the resistor R12 and one end of the capacitor C13, pin 4 of the electric energy metering chip U3 is respectively connected to one end of the capacitor C14 and one end of the resistor R13, pin 5 of the electric energy metering chip U3 is respectively connected to one end of the capacitor C15, one end of the resistor R19, and one end of the resistor R18, pin 6 of the electric energy metering chip U3 is connected to one end of the capacitor C16 and is grounded, and pin 16 of the electric energy metering chip U3 is connected to one end of the capacitor C17 and is connected to a 3.3V power supply. voltage, the other end of capacitor C11 is connected to the other end of capacitor C12, the other end of resistor R23 is connected to one end of load CR1, the other end of load CR1 is connected to one end of relay K1, the other end of relay K1 is connected to pin 1 of current transformer TA1, the other end of capacitor C13 is connected to the other end of capacitor C14, the other end of resistor R12 is respectively connected to pin 4 of current transformer TA1 and one end of resistor R11, the other end of resistor R11 is grounded, the other end of resistor R13 is connected to pin 3 of current transformer TA1, the other end of resistor R19 is connected to the other end of capacitor C15, resistor R18 is connected in series with resistor R17, resistor R16, resistor R15, and resistor R14 in sequence, and one end of resistor R14 is connected to AC-DC.

[0008] Preferably, the state detection circuit includes: pin 4 of the rectifier bridge DB1 is respectively connected to the positive electrode of the diode D1, the positive electrode of the diode D2, and the negative electrode of the diode D3, the pin 3 of the rectifier bridge DB1 is grounded, the negative electrode of the diode D1 is respectively connected to one end of the resistor R1 and the source of the transistor Q1, the drain of the transistor Q1 is connected to one end of the capacitor C1, the gate of the transistor Q1 is respectively connected to the other end of the resistor R1 and the drain of the transistor Q2, the source of the transistor Q2 is grounded, and the gate of the transistor Q2 is respectively connected to the output end of the battery voltage detection chip U1, one end of the resistor R6, and the resistor One end of resistor R5 is connected, and the other end of resistor R5 is respectively connected to the input end of the battery voltage detection chip U1, one end of resistor R2, and one end of resistor R3. The other end of resistor R2 is respectively connected to the cathode of diode D2 and one end of capacitor C2. The other end of resistor R3 is respectively connected to the other end of capacitor C2 and the anode of diode D3 and grounded. The other end of resistor R6 is respectively connected to one end of capacitor C4 and the input end of the battery voltage detection chip U2. The other end of capacitor C4 is grounded. The output end of the battery voltage detection chip U2 is respectively connected to the anode of diode D4 and one end of resistor R4.

[0009] Preferably, the temperature detection circuit comprises: a temperature sensor, a signal amplification circuit and an analog-to-digital converter which are electrically connected.

[0010] Preferably, the Beidou module includes: Beidou chip AT9880B.

[0011] Preferably, the wireless communication module includes: pin 1 of the RF module MK1 is respectively connected to one end of capacitor C31 and one end of capacitor C32, and pin 8 of the RF module MK1 is respectively connected to the other end of capacitor C31 and the other end of capacitor C32 and grounded.

[0012] Preferably, the LED indication module includes: the cathode of the light-emitting diode LED1 is connected to one end of the resistor R26, the other end of the resistor R26 is grounded, the cathode of the light-emitting diode LED2 is connected to one end of the resistor R27, the other end of the resistor R27 is grounded, the cathode of the light-emitting diode LED3 is connected to one end of the resistor R28, the other end of the resistor R28 is grounded, the cathode of the light-emitting diode LED4 is connected to one end of the resistor R24, the other end of the resistor R24 ​​is grounded, the cathode of the light-emitting diode LED5 is connected to one end of the resistor R25, and the other end of the resistor R25 is grounded.

[0013] Preferably, the power module includes: pin 1 of the DC-DC power chip U11 is grounded, pin 2 of the DC-DC power chip U11 is respectively connected to one end of the capacitor C41 and one end of the inductor L41, pin 3 of the DC-DC power chip U11 is respectively connected to one end of the capacitor C47, one end of the capacitor C46, ​​the positive electrode of the capacitor C45, and one end of the resistor R41, pin 4 of the DC-DC power chip U11 is respectively connected to one end of the resistor R42, one end of the resistor R43, and one end of the capacitor C44, pin 5 of the DC-DC power chip U11 is connected to the other end of the resistor R41, pin 6 of the DC-DC power chip U11 is connected to the other end of the capacitor C41, and the other end of the capacitor C47 is connected to the positive electrode of the capacitor C45. The other end of the inductor L41 is respectively connected to the other end of the resistor R42, the other end of the capacitor C44, one end of the capacitor C43, one end of the capacitor C42, one end of the capacitor C48, one end of the capacitor C49, pin 1 of the regulator chip U42, and pin 3 of the regulator chip U42. The other end of the resistor R43 is grounded, the other end of the capacitor C43 is grounded, the other end of the capacitor C42 is grounded, the other end of the capacitor C48 is connected to the other end of the capacitor C49 and is grounded. The pin 5 of the regulator chip U42 is respectively connected to the positive electrode of the capacitor C50 and one end of the capacitor C51, and the negative electrode of the capacitor C50 is connected to the other end of the capacitor C51 and is grounded.

[0014] Preferably, the serial communication module includes: pin 1 of the digital isolator chip U45 is connected to one end of the capacitor C55, pin 2 of the digital isolator chip U45 is connected to the other end of the capacitor C55 and is grounded, pins 12, 13, 14 and 15 of the digital isolator chip U45 are connected to pins 1, 2, 3 and 4 of the serial port chip U46 in sequence, pin 5 of the serial port chip U46 is grounded, and pin 6 of the serial port chip U46 is respectively connected to one end of the resistor R58, one end of the diode D53, one end of the resistor R50, and the diode D54. One end of D52 is connected, and pin 7 of the serial port chip U46 is respectively connected to one end of resistor R57, one end of diode D51, the other end of diode D52, and one end of resistor R59, the other end of resistor R59 is connected to one end of resistor R51, and the other end of resistor R50 is connected to the other end of resistor R51, pin 8 of the serial port chip U46 is connected to one end of capacitor C57, the other end of capacitor C57 is connected to the other end of resistor R57, the other end of diode D51 is grounded, and the other end of diode D53 is grounded.

[0015] The enclosed fuse with intelligent monitoring function implemented in the present invention has the following beneficial effects:

[0016] (1) Real-time data acquisition and transmission - The device can collect data from the enclosed fuse in real time and transmit it remotely to the host computer or monitoring system through the wireless communication module. This helps to detect and handle equipment failures in a timely manner and improve the safety and stability of the system.

[0017] (2) Efficient data processing and analysis - The use of high-performance MCU and advanced data processing algorithms can efficiently process and analyze the collected data. Through data analysis, useful information can be extracted to provide decision support for equipment maintenance and management.

[0018] (3) Accurate time and location information - The Beidou module provides accurate time and location information for the device, which helps to record the operation trajectory of the equipment and the time and location of the fault. This helps to quickly locate the fault point and improve maintenance efficiency.

[0019] (4) Remote monitoring and alarm function - Support remote monitoring and alarm function. Users can view the operating status and fault alarm information of the equipment in real time through the host computer or monitoring system. Once the equipment fails, the device will immediately trigger the alarm mechanism to remind the user to take timely measures to deal with it.

[0020] (5) Easy to expand and upgrade - With a modular design, it can be expanded and upgraded according to actual needs. For example, more sensors and detection circuits can be added to improve the accuracy and range of data collection; the wireless communication module can also be upgraded to support more advanced communication protocols and frequency bands. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0023] Figure 1 It is a schematic diagram of the module structure of the enclosed fuse with intelligent monitoring function of the present invention;

[0024] Figure 2 It is a front view of the enclosed fuse with intelligent monitoring function of the present invention;

[0025] Figure 3 It is a side view of the enclosed fuse with intelligent monitoring function of the present invention;

[0026] Figure 4It is a circuit diagram of a current detection circuit in a closed fuse with an intelligent monitoring function of the present invention;

[0027] Figure 5 It is a circuit diagram of a state detection circuit in a closed fuse with an intelligent monitoring function of the present invention;

[0028] Figure 6 It is a circuit diagram of a wireless communication module in a closed fuse with intelligent monitoring function of the present invention;

[0029] Figure 7 It is a circuit diagram of an LED indicator module in a closed fuse with intelligent monitoring function of the present invention;

[0030] Figure 8 It is a circuit diagram of a power module in a closed fuse with intelligent monitoring function of the present invention;

[0031] Fig. 9 The invention discloses a circuit diagram of a serial communication module in a closed fuse with an intelligent monitoring function.

[0032] In the figure, 1- intelligent detection module. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] Figure 1 It is a schematic diagram of the module structure of the enclosed fuse with intelligent monitoring function of the present invention; Figure 2 It is a front view of the enclosed fuse with intelligent monitoring function of the present invention; Figure 3 This is a side view of the enclosed fuse with intelligent monitoring function of the present invention. Figure 1-Figure 3 In the enclosed fuse with intelligent monitoring function provided in the first embodiment of the present invention, at least an intelligent detection module 1 and a data acquisition online transmission module (not shown in the figure) are electrically connected. The intelligent detection module 1 is used to collect data, and the data acquisition online transmission module is used to receive data collected from the intelligent detection module 1. The intelligent detection module 1 includes a first MCU, a current detection circuit, a temperature detection circuit and a state detection circuit electrically connected to the first MCU. The first MCU is used to control the current detection circuit, the temperature detection circuit and the state detection circuit. The current detection circuit is used to monitor the current condition of the device in real time. The temperature detection circuit is used to detect the working temperature of the device in real time to provide a reference for the control of the first MCU. The state detection circuit is used to monitor the operating state of the fuse;

[0037] The data acquisition online transmission module includes a second MCU, a Beidou module, a wireless communication module, an LED indication module, a power module and a serial communication module electrically connected to the second MCU. The second MCU is used to control the Beidou module, the wireless communication module and the LED indication module to process the received data. The Beidou module is used to receive the positioning signal sent by the Beidou satellite system, and obtain the current longitude and latitude and time information by parsing these signals. The wireless communication module is used for wireless transmission with external electronic devices to achieve remote data interaction and monitoring. The LED indication module is used to provide users with intuitive indications of the working status and error prompts of the device through the on and off or flashing status of the LED indicator light. The power module is used to provide power supply to ensure the stable operation of the second MCU, Beidou module, wireless communication module, LED indication module, power module and serial communication module. The serial communication module is used for serial communication with external electronic devices.

[0038] The first MCU includes: any one of STM32F103C series and GD32F103.

[0039] Figure 4 This is a circuit diagram of a current detection circuit in a closed fuse with intelligent monitoring function of the present invention. Figure 4As shown, the current detection circuit includes: pin 1 of the energy metering chip U3 is respectively connected to one end of the resistor R23 and one end of the capacitor C11, pin 2 of the energy metering chip U3 is respectively connected to one end of the capacitor C12 and one end of the resistor R21, pin 3 of the energy metering chip U3 is respectively connected to one end of the resistor R12 and one end of the capacitor C13, pin 4 of the energy metering chip U3 is respectively connected to one end of the capacitor C14 and one end of the resistor R13, pin 5 of the energy metering chip U3 is respectively connected to one end of the capacitor C15, one end of the resistor R19, and one end of the resistor R18, pin 6 of the energy metering chip U3 is connected to one end of the capacitor C16 and is grounded, and pin 16 of the energy metering chip U3 is connected to one end of the capacitor C17 and is connected to a 3.3V voltage , the other end of capacitor C11 is connected to the other end of capacitor C12, the other end of resistor R23 is connected to one end of load CR1, the other end of load CR1 is connected to one end of relay K1, the other end of relay K1 is connected to pin 1 of current transformer TA1, the other end of capacitor C13 is connected to the other end of capacitor C14, the other end of resistor R12 is respectively connected to pin 4 of current transformer TA1 and one end of resistor R11, the other end of resistor R11 is grounded, the other end of resistor R13 is connected to pin 3 of current transformer TA1, the other end of resistor R19 is connected to the other end of capacitor C15, resistor R18 is connected in series with resistor R17, resistor R16, resistor R15, and resistor R14 in sequence, and one end of resistor R14 is connected to AC-DC.

[0040] The energy metering chip U3 includes one of HLW8112, CSE7761, R5F10Y series, STPM series of STMicroelectronics, MSP430 series and PIC24FJ128GA310 series.

[0041] The temperature detection circuit includes: a temperature sensor, a signal amplifying circuit and an analog-to-digital converter which are electrically connected.

[0042] The temperature sensor is the core component of the temperature detection circuit, which is responsible for converting the ambient temperature into an electrical signal. Common temperature sensors include thermistors, thermocouples, and semiconductor temperature sensors (such as PN junction diodes or transistors). The resistance of thermistors changes with temperature, thermocouples generate voltage based on the thermoelectric effect, and semiconductor temperature sensors use the characteristic that the PN junction voltage changes with temperature.

[0043] The signal amplifying circuit includes: a signal amplifying chip U4, and the signal amplifying chip U4 is connected to the temperature sensor. The signal amplifying chip U4 includes: any one of LM1875, LM3886, LM4766, LM358, LM324, LM393, LM339, LM386 and AG50.

[0044] Figure 5 This is a circuit diagram of a state detection circuit in a closed fuse with intelligent monitoring function of the present invention. Figure 5 As shown, the state detection circuit includes: pin 4 of the rectifier bridge DB1 is respectively connected to the positive electrode of the diode D1, the positive electrode of the diode D2, and the negative electrode of the diode D3, the pin 3 of the rectifier bridge DB1 is grounded, the negative electrode of the diode D1 is respectively connected to one end of the resistor R1 and the source of the transistor Q1, the drain of the transistor Q1 is connected to one end of the capacitor C1, the gate of the transistor Q1 is respectively connected to the other end of the resistor R1 and the drain of the transistor Q2, the source of the transistor Q2 is grounded, and the gate of the transistor Q2 is respectively connected to the output end of the battery voltage detection chip U1, one end of the resistor R6, and the resistor R 5, the other end of the resistor R5 is respectively connected to the input end of the battery voltage detection chip U1, one end of the resistor R2, and one end of the resistor R3, the other end of the resistor R2 is respectively connected to the cathode of the diode D2 and one end of the capacitor C2, the other end of the resistor R3 is respectively connected to the other end of the capacitor C2 and the anode of the diode D3 and grounded, the other end of the resistor R6 is respectively connected to one end of the capacitor C4 and the input end of the battery voltage detection chip U2, the other end of the capacitor C4 is grounded, and the output end of the battery voltage detection chip U2 is respectively connected to the anode of the diode D4 and one end of the resistor R4.

[0045] In some optional implementations, the battery voltage detection chip U1 and the battery voltage detection chip U2 may include but are not limited to CN301 and the like.

[0046] In specific implementation, the second MCU includes but is not limited to: any one of the STM32F103R series and GD32F103, such as STM32F103RCT6, STM103RET6, STM32RFT6, etc. In this embodiment, the second MCU is selected as STM32F103RCT6TR.

[0047] Beidou modules include but are not limited to AT9880B, etc. When the Beidou module receives the positioning signal and uploads the message, the second MCU receives these messages through the UART (serial port) communication interface and performs parsing. During the parsing process, the second MCU extracts key information such as latitude and longitude, time, etc. in the message and saves it to the data area of ​​the device. At the same time, the second MCU will also update the status of the LED indicator module according to the parsing results to reflect the validity of the current positioning information.

[0048] Figure 6 This is a circuit diagram of a wireless communication module in a closed fuse with intelligent monitoring function of the present invention. Figure 6As shown, the wireless communication module includes: Pin 1 of the RF module MK1 is respectively connected to one end of the capacitor C31 and one end of the capacitor C32, and Pin 8 of the RF module MK1 is respectively connected to the other end of the capacitor C31 and the other end of the capacitor C32 and grounded. In specific implementation, the RF module MK1 includes but is not limited to AS01-ML01S, etc.

[0049] When an external device sends data to the device, the wireless communication module receives and parses the data. The parsed data is sent to the second MCU for processing via the SPI interface. At the same time, the wireless communication module also adjusts communication parameters or enters low power consumption mode according to the instructions of the second MCU.

[0050] Figure 7 This is a circuit diagram of an LED indicator module in a closed fuse with intelligent monitoring function of the present invention. Figure 7 As shown, the LED indication module includes: the cathode of the light emitting diode LED1 is connected to one end of the resistor R26, and the other end of the resistor R26 is grounded; the cathode of the light emitting diode LED2 is connected to one end of the resistor R27, and the other end of the resistor R27 is grounded; the cathode of the light emitting diode LED3 is connected to one end of the resistor R28, and the other end of the resistor R28 is grounded; the cathode of the light emitting diode LED4 is connected to one end of the resistor R24, and the other end of the resistor R24 ​​is grounded; the cathode of the light emitting diode LED5 is connected to one end of the resistor R25, and the other end of the resistor R25 is grounded.

[0051] The working principle of the LED indicator module is based on the control of the GPIO (general purpose input and output) pin by the second MCU. In this device, the LED indicator is connected in a common cathode manner, and the anode is directly connected to the GPIO pin of the second MCU.

[0052] Figure 8 This is a circuit diagram of a power module in a closed fuse with intelligent monitoring function of the present invention. Figure 8As shown, the power module includes: pin 1 of the DC-DC power chip U11 is grounded, pin 2 of the DC-DC power chip U11 is respectively connected to one end of the capacitor C41 and one end of the inductor L41, pin 3 of the DC-DC power chip U11 is respectively connected to one end of the capacitor C47, one end of the capacitor C46, ​​the positive electrode of the capacitor C45, and one end of the resistor R41, pin 4 of the DC-DC power chip U11 is respectively connected to one end of the resistor R42, one end of the resistor R43, and one end of the capacitor C44, pin 5 of the DC-DC power chip U11 is connected to the other end of the resistor R41, pin 6 of the DC-DC power chip U11 is connected to the other end of the capacitor C41, and the other end of the capacitor C47 is connected to the positive electrode of the capacitor C45. The other end of the inductor L41 is respectively connected to the other end of the resistor R42, the other end of the capacitor C44, one end of the capacitor C43, one end of the capacitor C42, one end of the capacitor C48, one end of the capacitor C49, pin 1 of the regulator chip U42, and pin 3 of the regulator chip U42. The other end of the resistor R43 is grounded, the other end of the capacitor C43 is grounded, the other end of the capacitor C42 is grounded, the other end of the capacitor C48 is connected to the other end of the capacitor C49 and is grounded. The pin 5 of the regulator chip U42 is respectively connected to the positive electrode of the capacitor C50 and one end of the capacitor C51, and the negative electrode of the capacitor C50 is connected to the other end of the capacitor C51 and is grounded.

[0053] The DC-DC power supply chip U1 includes but is not limited to SGM61412AXTN6G / TR and the like.

[0054] Fig. 9 This is a circuit diagram of a serial communication module in a closed fuse with intelligent monitoring function of the present invention. Fig. 9 As shown, the serial communication module includes: pin 1 of the digital isolator chip U45 is connected to one end of the capacitor C55, pin 2 of the digital isolator chip U45 is connected to the other end of the capacitor C55 and is grounded, pins 12, 13, 14 and 15 of the digital isolator chip U45 are connected to pins 1, 2, 3 and 4 of the serial port chip U46 in sequence, pin 5 of the serial port chip U46 is grounded, and pin 6 of the serial port chip U46 is respectively connected to one end of the resistor R58, one end of the diode D53, one end of the resistor R50, and the diode D5 2, pin 7 of the serial port chip U46 is respectively connected to one end of the resistor R57, one end of the diode D51, the other end of the diode D52, and one end of the resistor R59, the other end of the resistor R59 is connected to one end of the resistor R51, the other end of the resistor R50 is connected to the other end of the resistor R51, pin 8 of the serial port chip U46 is connected to one end of the capacitor C57, the other end of the capacitor C57 is connected to the other end of the resistor R57, the other end of the diode D51 is grounded, and the other end of the diode D53 is grounded.

[0055] In a specific implementation, the digital isolator chip U5 includes but is not limited to π131U31 and the like.

[0056] The working principle of the intelligent detection module is:

[0057] (1) Initialization: After the system is powered on, the first MCU first performs initialization operations, including setting the clock, initializing the I / O port, configuring the A / D converter, etc.

[0058] (2) Data acquisition: The first MCU collects the current, temperature and status data of the fuse in real time by controlling the current detection circuit, temperature detection circuit and status detection circuit.

[0059] (3) Data processing: The first MCU processes and analyzes the collected data, including filtering, A / D conversion, data calibration, etc., to obtain accurate current, temperature and status information.

[0060] (4) Fault judgment: The first MCU judges whether there is an abnormality in the fuse based on the processed data. For example, when the current exceeds the set threshold, it is judged as overload; when the temperature exceeds the set threshold, it is judged as overheating; when the status sensor detects an abnormal signal, it is judged as a fuse failure.

[0061] (5) Protection measures: When an abnormal situation is determined, the first MCU will trigger corresponding protection measures, such as cutting off the power supply, issuing an alarm signal, or starting a backup device.

[0062] (6) Communication and alarm: The first MCU sends abnormal information to the host computer or other intelligent devices through the communication module to achieve remote monitoring and fault alarm.

[0063] The working principle of the data acquisition online transmission module is:

[0064] (1) Data reception:

[0065] When the Beidou module successfully receives the positioning signal and generates NMEA-0183 format messages, it will send these messages to the second MCU through the UART interface. After receiving the message, the second MCU will perform verification and parsing. During the verification process, the second MCU will check the correctness of the format and content of the message; during the parsing process, the second MCU will extract key information such as latitude and longitude, time, etc. in the message.

[0066] (2) Data processing:

[0067] The second MCU further processes the parsed data. First, it converts the longitude and latitude data into the coordinate format used inside the device (such as the WGS-84 coordinate system). Then, the second MCU saves the data to the device's data area or performs other processing operations as needed.

[0068] During the processing, the second MCU will also update the status of the LED indicator module according to the validity of the data. For example, when valid positioning information is received, the second MCU will control the corresponding LED indicator to light up; when the positioning information is invalid, the second MCU will control the LED indicator to turn off or flash to remind the user.

[0069] (3) Data storage:

[0070] The data area inside the device is used to store the received positioning information and other related data. These data can include the original NMEA-0183 format message, parsed latitude and longitude data and time information, etc. The data storage method can adopt cyclic storage or specified storage, etc., depending on the design requirements and usage scenarios of the device.

[0071] When storing data, the second MCU will consider the integrity and reliability of the data. For example, it will verify and encrypt the data before storage; when reading data, it will decrypt and verify the data to ensure the correctness of the data.

[0072] (4) Data interaction:

[0073] The device exchanges data with external devices through the wireless communication module. When data needs to be sent to the external device, the second MCU will package the data and send it out through the wireless module. During the transmission process, the second MCU will ensure the integrity and reliability of the data, and add corresponding check codes or encryption measures as needed.

[0074] When receiving data sent by an external device, the wireless communication module will send the data to the second MCU through the SPI interface for processing. After receiving the data, the second MCU will perform analysis and verification, and execute corresponding control logic or data update operations as needed.

[0075] The working principle of the enclosed fuse with intelligent monitoring function in this embodiment is:

[0076] The data acquisition online transmission module communicates wirelessly with the intelligent detection module through the 2.4G frequency band, and summarizes the data collected by the intelligent detection module. If a fault occurs, such as a drop fault, the intelligent detection module reports the fault information to the data acquisition online transmission module. After receiving the data, the data acquisition online transmission module stores the data in the data area. Data processing can be performed later. The data acquisition online transmission module communicates with external devices through RS485, and wireless communication is used for communication between the intelligent detection module and the data acquisition online transmission module.

[0077] The following is an example of intelligent detection of enclosed fuses:

[0078] The intelligent detection module is the core part of the device and is responsible for collecting data from the enclosed fuse.

[0079] The first MCU is the control center of the intelligent detection module, responsible for data collection, processing and transmission. It integrates a high-performance microprocessor core, rich storage resources and multiple input and output interfaces, and can efficiently perform various data processing tasks.

[0080] The current detection circuit is used to detect the current value in the enclosed fuse to ensure that the current fluctuates within the normal range and prevent the occurrence of overload or short circuit.

[0081] The temperature detection circuit is used to monitor the operating temperature of the enclosed fuse to prevent equipment damage or performance degradation caused by overtemperature.

[0082] The status detection circuit is used to detect the switch status, fault alarm and other information of the enclosed fuse to ensure the normal operation of the equipment.

[0083] The data acquisition online transmission module is responsible for receiving data from the intelligent detection module and processing and analyzing it.

[0084] The second MCU is the control center of the data acquisition online transmission module, responsible for receiving, storing and analyzing data. It realizes data transmission and synchronization with the first MCU through electrical connection.

[0085] Beidou module is used to provide accurate time and location information to ensure the accuracy and reliability of data. In the intelligent detection of enclosed fuses, Beidou module can be used to record the operation track of the equipment and the time and location of the fault.

[0086] The wireless communication module is used to achieve remote transmission and reception of data. It supports multiple communication protocols and frequency bands, such as the integration of enhanced ShockBurst technology, where the output power and communication channel can be configured through the program, etc., and the appropriate communication method can be selected according to actual needs.

[0087] The LED indicator module is used to display the working status and fault alarm information of the device. Through the flashing of the LED indicator, the user can intuitively understand the operating status and fault conditions of the equipment.

[0088] The power module provides a stable power supply for the entire device. It uses efficient and reliable power management technology to ensure that the device can still work normally in harsh environments.

[0089] The serial communication module is used to realize serial communication and data exchange between the device and other devices. In the intelligent detection of enclosed fuses, the serial communication module can be used to connect with the host computer or monitoring system to realize real-time data transmission and remote monitoring.

[0090] The working principle of the enclosed fuse with intelligent monitoring function in this embodiment is:

[0091] The intelligent detection module collects data from the enclosed fuse in real time through the current detection circuit, temperature detection circuit and status detection circuit. After the collected data is processed and converted by the first MCU, it is transmitted wirelessly to the data acquisition online transmission module. The second MCU of the data acquisition online transmission module receives the data from the intelligent detection module and stores and analyzes it. At the same time, the Beidou module provides accurate time and location information to ensure the accuracy and reliability of the data. The wireless communication module remotely transmits the processed data to the host computer or monitoring system to realize real-time data sharing and remote monitoring. The LED indicator module displays the working status and fault alarm information of the device, which is convenient for users to troubleshoot and repair.

[0092] The present invention has the following beneficial effects through the design of the above embodiments:

[0093] (1) Real-time data acquisition and transmission - The device can collect data from the enclosed fuse in real time and transmit it remotely to the host computer or monitoring system through the wireless communication module. This helps to detect and handle equipment failures in a timely manner and improve the safety and stability of the system.

[0094] (2) Efficient data processing and analysis - The use of high-performance MCU and advanced data processing algorithms can efficiently process and analyze the collected data. Through data analysis, useful information can be extracted to provide decision support for equipment maintenance and management.

[0095] (3) Accurate time and location information - The Beidou module provides accurate time and location information for the device, which helps to record the operation trajectory of the equipment and the time and location of the fault. This helps to quickly locate the fault point and improve maintenance efficiency.

[0096] (4) Remote monitoring and alarm function - Support remote monitoring and alarm function. Users can view the operating status and fault alarm information of the equipment in real time through the host computer or monitoring system. Once the equipment fails, the device will immediately trigger the alarm mechanism to remind the user to take timely measures to deal with it.

[0097] (5) Easy to expand and upgrade - With a modular design, it can be expanded and upgraded according to actual needs. For example, more sensors and detection circuits can be added to improve the accuracy and range of data collection; the wireless communication module can also be upgraded to support more advanced communication protocols and frequency bands.

[0098] The present invention is described with reference to specific embodiments, but it should be understood by those skilled in the art that various changes and equivalent substitutions may be made without departing from the scope of the present invention. In addition, in order to adapt to specific occasions of the present invention, the present invention may be modified in many ways without departing from its scope of protection. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all embodiments falling within the scope of protection of the claims.

Claims

1. A closed fuse with intelligent monitoring function, characterized in that: include: An intelligent detection module and a data acquisition online transmission module electrically connected, the intelligent detection module is used to collect data, the data acquisition online transmission module is used to receive data collected from the intelligent detection module, the intelligent detection module includes a first MCU, a current detection circuit, a temperature detection circuit and a state detection circuit electrically connected to the first MCU, the first MCU is used to control the current detection circuit, the temperature detection circuit and the state detection circuit, the current detection circuit is used to monitor the current condition of the device in real time, the temperature detection circuit is used to detect the working temperature of the device in real time to provide a reference for the control of the first MCU, and the state detection circuit is used to monitor the operating state of the fuse; The data acquisition online transmission module includes a second MCU, a Beidou module, a wireless communication module, an LED indication module, a power module and a serial communication module electrically connected to the second MCU. The second MCU is used to control the Beidou module, the wireless communication module and the LED indication module to process the received data. The Beidou module is used to receive the positioning signal sent by the Beidou satellite system, and obtain the current longitude and latitude and time information by parsing these signals. The wireless communication module is used for wireless transmission with external electronic devices to achieve remote data interaction and monitoring. The LED indication module is used to provide the user with an intuitive indication of the working status and error prompts of the device through the on and off or flashing status of the LED indicator light. The power module is used to provide power supply to ensure the stable operation of the second MCU, the Beidou module, the wireless communication module, the LED indication module, the power module and the serial communication module. The serial communication module is used for serial communication with external electronic devices.

2. The enclosed fuse with intelligent monitoring function according to claim 1, characterized in that: The first MCU includes: any one of STM32F103C series and GD32F103.

3. The enclosed fuse with intelligent monitoring function according to claim 1, characterized in that: The current detection circuit includes: Pin 1 of the electric energy metering chip U3 is respectively connected to one end of the resistor R23 and one end of the capacitor C11, Pin 2 of the electric energy metering chip U3 is respectively connected to one end of the capacitor C12 and one end of the resistor R21, Pin 3 of the electric energy metering chip U3 is respectively connected to one end of the resistor R12 and one end of the capacitor C13, Pin 4 of the electric energy metering chip U3 is respectively connected to one end of the capacitor C14 and one end of the resistor R13, Pin 5 of the electric energy metering chip U3 is respectively connected to one end of the capacitor C15, one end of the resistor R19, and one end of the resistor R18, Pin 6 of the electric energy metering chip U3 is connected to one end of the capacitor C16 and is grounded, Pin 16 of the electric energy metering chip U3 is connected to one end of the capacitor C17 and is connected to a 3.3V voltage, The other end of capacitor C11 is connected to the other end of capacitor C12, the other end of resistor R23 is connected to one end of load CR1, the other end of load CR1 is connected to one end of relay K1, the other end of relay K1 is connected to pin 1 of current transformer TA1, the other end of capacitor C13 is connected to the other end of capacitor C14, the other end of resistor R12 is respectively connected to pin 4 of current transformer TA1 and one end of resistor R11, the other end of resistor R11 is grounded, the other end of resistor R13 is connected to pin 3 of current transformer TA1, the other end of resistor R19 is connected to the other end of capacitor C15, resistor R18 is connected in series with resistor R17, resistor R16, resistor R15, and resistor R14 in sequence, and one end of resistor R14 is connected to AC-DC.

4. The enclosed fuse with intelligent monitoring function according to claim 1, characterized in that: The state detection circuit includes: pin 4 of the rectifier bridge DB1 is respectively connected to the positive electrode of the diode D1, the positive electrode of the diode D2, and the negative electrode of the diode D3; pin 3 of the rectifier bridge DB1 is grounded; the negative electrode of the diode D1 is respectively connected to one end of the resistor R1 and the source of the transistor Q1; the drain of the transistor Q1 is connected to one end of the capacitor C1; the gate of the transistor Q1 is respectively connected to the other end of the resistor R1 and the drain of the transistor Q2; the source of the transistor Q2 is grounded; the gate of the transistor Q2 is respectively connected to the output end of the battery voltage detection chip U1, one end of the resistor R6, and the resistor R5. The other end of the resistor R5 is respectively connected to the input end of the battery voltage detection chip U1, one end of the resistor R2, and one end of the resistor R3. The other end of the resistor R2 is respectively connected to the cathode of the diode D2 and one end of the capacitor C2. The other end of the resistor R3 is respectively connected to the other end of the capacitor C2 and the anode of the diode D3 and grounded. The other end of the resistor R6 is respectively connected to one end of the capacitor C4 and the input end of the battery voltage detection chip U2. The other end of the capacitor C4 is grounded. The output end of the battery voltage detection chip U2 is respectively connected to the anode of the diode D4 and one end of the resistor R4.

5. The enclosed fuse with intelligent monitoring function according to claim 1, characterized in that: The temperature detection circuit includes: a temperature sensor, a signal amplifying circuit and an analog-to-digital converter which are electrically connected.

6. The enclosed fuse with intelligent monitoring function according to claim 1, characterized in that: The Beidou module includes: Beidou chip AT9880B.

7. The enclosed fuse with intelligent monitoring function according to claim 1, characterized in that: The wireless communication module includes: pin 1 of the RF module MK1 is respectively connected to one end of the capacitor C31 and one end of the capacitor C32, and pin 8 of the RF module MK1 is respectively connected to the other end of the capacitor C31 and the other end of the capacitor C32 and grounded.

8. The enclosed fuse with intelligent monitoring function according to claim 1, characterized in that: The LED indication module includes: the cathode of the light-emitting diode LED1 is connected to one end of the resistor R26, the other end of the resistor R26 is grounded, the cathode of the light-emitting diode LED2 is connected to one end of the resistor R27, the other end of the resistor R27 is grounded, the cathode of the light-emitting diode LED3 is connected to one end of the resistor R28, the other end of the resistor R28 is grounded, the cathode of the light-emitting diode LED4 is connected to one end of the resistor R24, the other end of the resistor R24 ​​is grounded, and the cathode of the light-emitting diode LED5 is connected to one end of the resistor R25, and the other end of the resistor R25 is grounded.

9. The enclosed fuse with intelligent monitoring function according to claim 1, characterized in that: The power module includes: pin 1 of the DC-DC power chip U11 is grounded, pin 2 of the DC-DC power chip U11 is respectively connected to one end of the capacitor C41 and one end of the inductor L41, pin 3 of the DC-DC power chip U11 is respectively connected to one end of the capacitor C47, one end of the capacitor C46, ​​the positive electrode of the capacitor C45, and one end of the resistor R41, pin 4 of the DC-DC power chip U11 is respectively connected to one end of the resistor R42, one end of the resistor R43, and one end of the capacitor C44, pin 5 of the DC-DC power chip U11 is connected to the other end of the resistor R41, pin 6 of the DC-DC power chip U11 is connected to the other end of the capacitor C41, and the other end of the capacitor C47 is respectively connected to the positive electrode of the capacitor C45. The other end of the inductor L41 is connected to the other end of the resistor R42, the other end of the capacitor C44, one end of the capacitor C43, one end of the capacitor C42, one end of the capacitor C48, one end of the capacitor C49, pin 1 of the regulator chip U42, and pin 3 of the regulator chip U42. The other end of the resistor R43 is grounded, the other end of the capacitor C43 is grounded, the other end of the capacitor C42 is grounded, the other end of the capacitor C48 is connected to the other end of the capacitor C49 and is grounded, and the pin 5 of the regulator chip U42 is respectively connected to the positive electrode of the capacitor C50 and one end of the capacitor C51, and the negative electrode of the capacitor C50 is connected to the other end of the capacitor C51 and is grounded.

10. The enclosed fuse with intelligent monitoring function according to claim 1, characterized in that: The serial communication module includes: pin 1 of the digital isolator chip U45 is connected to one end of the capacitor C55, pin 2 of the digital isolator chip U45 is connected to the other end of the capacitor C55 and is grounded, pins 12, 13, 14 and 15 of the digital isolator chip U45 are connected to pins 1, 2, 3 and 4 of the serial port chip U46 in sequence, pin 5 of the serial port chip U46 is grounded, and pin 6 of the serial port chip U46 is respectively connected to one end of the resistor R58, one end of the diode D53, one end of the resistor R50, and the diode D5 2, pin 7 of the serial port chip U46 is respectively connected to one end of the resistor R57, one end of the diode D51, the other end of the diode D52, and one end of the resistor R59, the other end of the resistor R59 is connected to one end of the resistor R51, the other end of the resistor R50 is connected to the other end of the resistor R51, pin 8 of the serial port chip U46 is connected to one end of the capacitor C57, the other end of the capacitor C57 is connected to the other end of the resistor R57, the other end of the diode D51 is grounded, and the other end of the diode D53 is grounded.

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