Power utilization information acquisition terminal verification unit working condition monitoring system

Abstract

The utility model discloses an intelligent ammeter verification assembly line working condition monitoring system. The system comprises a microcontroller. The motor speed measuring circuit is connected with the microcontroller; the temperature and humidity measuring circuit is connected with the microcontroller; the current and voltage measuring circuit is connected with the microcontroller through a metering chip; the ground leakage current measuring circuit is connected with the microcontroller through a metering chip; the power tube temperature measuring circuit is connected with the microcontroller; the relay module is connected with the microcontroller; and the power supply module is connected with the microcontroller. The beneficial effects of the utility model are that the system enables a user to know the working condition of monitored equipment in real time, can carry out early warning on potential fault points in advance, and can assist operation and maintenance personnel in troubleshooting to a certain extent.

Description

Technical Field

[0001] This utility model relates to the technical field of electricity information collection terminal verification, and in particular to an operating condition monitoring system for an electricity information collection terminal verification unit. Background Technology

[0002] Electricity data acquisition terminal meters are intelligent devices used for real-time monitoring, collection, and transmission of smart meter data. By integrating sensors, communication modules, and data processing units, they achieve efficient data acquisition, storage, and remote transmission, and are widely used in the power industry.

[0003] Operating condition refers to the state of production equipment and facilities during operation. With societal development, equipment used in daily life and production is becoming increasingly widespread. The operating condition of equipment directly affects its efficiency, thus requiring timely inspection. Regular inspections of automated production equipment are crucial for ensuring smooth production processes, improving efficiency, guaranteeing product quality, and extending equipment lifespan. Regular inspections allow for understanding the equipment's status and operating condition, enabling the identification of faulty and potential malfunctions. This facilitates maintenance and repair, reducing the probability of equipment accidents, improving production efficiency, and extending equipment lifespan.

[0004] However, regular inspections are usually conducted manually, which has the following drawbacks: it is time-consuming and labor-intensive, heavily influenced by personal experience, with each person having different standards for judging faults, and it also poses a significant risk to personal safety. Utility Model Content

[0005] The present invention aims to overcome the aforementioned deficiencies in the prior art and provides a power consumption information acquisition terminal calibration unit condition monitoring system capable of real-time monitoring of equipment operating conditions.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A power consumption information collection terminal calibration unit operating condition monitoring system includes:

[0008] microcontroller;

[0009] The motor speed measurement circuit, connected to the microcontroller, is used to measure the speed of the conveyor belt motor.

[0010] Temperature and humidity measurement circuit, connected to microcontroller, is used to measure the temperature and humidity inside the production line body;

[0011] The current and voltage measurement circuit is connected to the microcontroller via a metering chip and is used to measure the operating voltage and current.

[0012] The ground leakage current measurement circuit is connected to the microcontroller via a metering chip and is used to measure the ground leakage current of the production line body.

[0013] The power transistor temperature measurement circuit, connected to the microcontroller, is used to measure the temperature of the power transistors inside the main power amplifier of the pipeline.

[0014] The relay module, connected to the microcontroller, is used to cut off the power supply to the main body of the power information acquisition terminal verification unit.

[0015] The power module, connected to the microcontroller, is used to provide operating power to the system.

[0016] The power transistor temperature measurement circuit and the temperature and humidity measurement circuit are directly connected to the microcontroller, transmitting digital signals to the microcontroller. The microcontroller obtains the corresponding values ​​based on the received digital voltage signals. The motor speed measurement circuit is electrically connected to the monitored equipment and converts the current signal of the monitored equipment into an analog voltage output signal. This analog voltage output signal is then transmitted to the microcontroller, which collects the analog voltage output signal and converts it into an effective current value, thereby monitoring the equipment's operating condition. By collecting various signals from the monitored equipment through the motor speed measurement circuit, current and voltage measurement circuit, ground leakage current measurement circuit, and power transistor temperature measurement circuit, the operating condition of the equipment can be further monitored, enabling more accurate monitoring of the equipment's operating condition. This allows users to understand the operating condition of the monitored equipment in real time, provide early warnings of potential fault points, and assist maintenance personnel in troubleshooting to a certain extent.

[0017] Preferably, the microcontroller is connected to the server via a CAN serial port.

[0018] Preferably, the motor speed measurement circuit includes a conveyor belt motor and a Hall sensor, wherein the Hall sensor is mounted on the conveyor belt motor and is connected to a microcontroller.

[0019] Preferably, the temperature and humidity measurement circuit includes a temperature and humidity sensor, which is installed inside the production line body and connected to a microcontroller.

[0020] Preferably, the current and voltage measurement circuit includes a current measurement circuit and a voltage measurement circuit. The input terminal of the current measurement circuit is connected to the production line for measuring the operating current of the production line body, and the output terminal of the current measurement circuit is connected to the metering chip. The input terminal of the voltage measurement circuit is connected to the production line body for measuring the operating voltage of the production line body, and the output terminal of the voltage measurement circuit is connected to the metering chip.

[0021] Preferably, the input terminal of the ground leakage current measurement circuit is connected to the production line body to measure the ground leakage current of the production line body, and the output terminal of the ground leakage current measurement circuit is connected to the metering chip.

[0022] Preferably, the power transistor temperature measurement circuit includes a digital temperature sensor, which is installed inside the power transistor of the pipeline power amplifier and is connected to a microcontroller.

[0023] The beneficial effects of this utility model are: it enables users to understand the operating status of the monitored equipment in real time, provides early warning of potential fault points, and can assist maintenance personnel in troubleshooting to a certain extent. Attached Figure Description

[0024] Figure 1 This is a circuit block diagram of this utility model;

[0025] Figure 2 This is the circuit schematic diagram of the microcontroller of this utility model;

[0026] Figure 3 This is a circuit diagram of the current and voltage measurement circuit of this utility model;

[0027] Figure 4 This is a circuit diagram of the ground leakage current measurement circuit of this utility model;

[0028] Figure 5 This is the circuit schematic diagram of the power module of this utility model;

[0029] Figure 6 This is the circuit schematic diagram of the metering chip of this utility model;

[0030] Figure 7 This is the sensor interface circuit of this utility model;

[0031] Figure 8 This is the CAN serial port circuit of this utility model;

[0032] Figure 9 This is the display interface circuit of this utility model.

[0033] In the diagram: 1. Ground leakage current measurement circuit, 2. Current and voltage measurement circuit, 3. Power transistor temperature measurement circuit, 4. Temperature and humidity measurement circuit, 5. Motor speed measurement circuit, 6. Metering chip, 7. Power module, 8. Microcontroller, 9. Relay module, 10. Server, 11. CAN serial port circuit, 12. Sensor interface circuit, 13. Display interface circuit. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1 In the embodiments described above, a power consumption information collection terminal calibration unit operating condition monitoring system includes:

[0036] Microcontroller 8 connects to server 10 via a CAN serial port. The CAN standard interface is one of the commonly used serial communication interface standards, and the serial port of microcontroller 8 is electrically connected to the CAN serial port. The monitoring system of each monitored device is connected to server 10 via a CAN bus, allowing the microprocessor to report the device's operating status to the main control center in real time. Figure 2 This is the circuit schematic of a microcontroller.

[0037] The motor speed measurement circuit 5 is connected to the microcontroller 8 and is used to measure the speed of the conveyor belt motor. The motor speed measurement circuit 5 includes the conveyor belt motor and a Hall sensor. The Hall sensor is installed on the conveyor belt motor and is connected to the microcontroller 8. The motor speed measurement uses a 3144E Hall sensor module. The detection principle is that when the Hall sensor detects a magnetic field (i.e., the motor rotor), it outputs a low digital level, and when the Hall sensor does not detect a magnetic field, it outputs a high digital level.

[0038] Temperature and humidity measurement circuit 4, connected to microcontroller 8, is used to measure the temperature and humidity inside the production line body. Temperature and humidity measurement circuit 4 includes a temperature and humidity sensor installed inside the production line body and connected to microcontroller 8. The temperature and humidity measurement inside the production line body uses a DHT11 temperature and humidity sensor, with a humidity measurement range of 20-95%RH and a temperature measurement range of 0-50℃. It applies dedicated digital module acquisition technology and temperature and humidity sensing technology to ensure product reliability and excellent long-term stability, with relatively fast temperature and humidity measurement response speed and strong anti-interference ability.

[0039] The current and voltage measurement circuit 2, connected to the microcontroller 8 via the metering chip 6, is used to measure the operating voltage and current. The current and voltage measurement circuit 2 includes a current measurement circuit and a voltage measurement circuit. The input terminal of the current measurement circuit is connected to the production line to measure the operating current of the production line body, and the output terminal of the current measurement circuit is connected to the metering chip 6. The input terminal of the voltage measurement circuit is connected to the production line body to measure the operating voltage of the production line body, and the output terminal of the voltage measurement circuit is connected to the metering chip 6. The power consumption, voltage, current, and other analog signals during equipment operation are measured using the ATT7022E metering chip 6 and connected to the ATT7022E chip via a signal adjustment circuit. Figure 3 This is the circuit diagram of a current and voltage measurement circuit. The upper part is the voltage measurement circuit, and the lower part is the current measurement circuit.

[0040] The ground leakage current measurement circuit 1 is connected to the microcontroller 8 via the metering chip 6 and is used to measure the ground leakage current of the production line body. The input terminal of the ground leakage current measurement circuit 1 is connected to the production line body to measure the ground leakage current of the production line body, and the output terminal of the ground leakage current measurement circuit 1 is connected to the metering chip 6. The ATT7022E metering chip 6 is used to measure the power consumption of the equipment during operation, and analog signals such as the ground leakage current are connected to the ATT7022E chip through a signal adjustment circuit. Figure 4 This is the circuit diagram for measuring ground leakage current.

[0041] The power transistor temperature measurement circuit 3, connected to the microcontroller 8, is used to measure the temperature of the power transistors inside the pipeline amplifier. The power transistor temperature measurement circuit 3 includes a digital temperature sensor, which is installed inside the power transistors of the pipeline amplifier and connected to the microcontroller 8. The power transistor temperature measurement uses a DS18B20 digital temperature sensor, which supports a "one-wire bus" interface, measures temperatures from -55℃ to +125℃, and has an accuracy of ±0.5℃ from -10℃ to +85℃. The ambient temperature is transmitted directly via "one-wire bus," significantly improving the system's anti-interference capability.

[0042] Relay module 9, connected to microcontroller 8, is used to cut off the power supply to the main body of the power information acquisition terminal verification unit.

[0043] Power module 7, connected to microcontroller 8, provides operating power to the system. Figure 5 This is the circuit schematic of the power module.

[0044] Among them, the microcontroller 8 uses the STM32F103VCT6 processor; through the GPIO and digital-to-analog conversion interface of the STM32F103VCT6 processor, it can periodically collect the analog voltage output signal of the Hall sensor according to the internal timer of the STM32F103VCT6 processor, and convert the analog voltage output signal into an effective value through analog-to-digital conversion, thereby measuring the working voltage, current and leakage current to ground of the power information acquisition terminal verification unit. Figure 6 This is the circuit schematic of the metering chip; Figure 7 This is the sensor interface circuit. The sensors used in the power transistor temperature measurement circuit, temperature and humidity measurement circuit, and motor speed measurement circuit are all connected to the microcontroller through this circuit. Figure 7 This is the sensor interface circuit. The sensors used in the power transistor temperature measurement circuit, temperature and humidity measurement circuit, and motor speed measurement circuit are all connected to the monitoring system through this circuit. Figure 8 This is a CAN serial port circuit, through which the server connects to the microcontroller; Figure 9This is a display interface circuit, which is connected to a display to show the detected operating parameters.

[0045] In summary, microcontroller 8 connects to server 10 via a serial port. Temperature and humidity sensors are directly connected to the GPIO ports of microcontroller 8, transmitting digital signals to it. Microcontroller 8 then obtains the corresponding values ​​based on the received digital voltage signals. The output of the closed-loop Hall sensor is electrically connected to the monitored device and converts its current signal into an analog voltage output signal. The conversion module transmits this analog voltage output signal to microcontroller 8, which can then acquire the analog voltage output signal via its internal ADC interface and convert it into a valid current value, thus monitoring the device's operating condition. By collecting various signals from the monitored device, the operating condition can be further monitored more accurately. Server 10 can simultaneously receive data from multiple monitoring systems, allowing for the monitoring of multiple devices' operating conditions. The data is then transmitted to the main control center display screen, enabling users to understand the operating condition of each device in real time. By monitoring the main operating parameters of the equipment, early warnings of potential faults can be provided, assisting maintenance personnel in troubleshooting to some extent.

Claims

1. A system for monitoring the working condition of a meter calibration unit of a power utilization information collection terminal, characterized in that, It includes: Microcontroller (8); Motor speed measurement circuit (5) connected with microcontroller (8) for measuring the speed of the conveyor motor; Temperature and humidity measurement circuit (4) connected with microcontroller (8) for measuring the temperature and humidity inside the pipeline body; Current and voltage measurement circuit (2) connected with microcontroller (8) through metering chip (6) for measuring working voltage and current; Ground leakage current measurement circuit (1) connected with microcontroller (8) through metering chip (6) for measuring the ground leakage current of the pipeline body; Power tube temperature measurement circuit (3) connected with microcontroller (8) for measuring the temperature of the power tube inside the pipeline body power amplifier; Relay module (9) connected with microcontroller (8) for cutting off the working power supply of the power information collection terminal detection unit body; Power module (7) connected with microcontroller (8) for providing working power supply for the system.

2. The system according to claim 1, wherein the system further comprises a working condition monitoring unit for monitoring the working condition of the terminal verification unit. The microcontroller (8) is connected with the server (10) through CAN serial port.

3. The system according to claim 1, wherein the system further comprises a working condition monitoring unit for the terminal verification unit of the AMI terminal. The motor speed measurement circuit (5) includes conveyor motor and Hall sensor, the Hall sensor is installed on the conveyor motor, and the Hall sensor is connected with the microcontroller (8).

4. The system according to claim 1, characterized in that, The temperature and humidity measurement circuit (4) includes temperature and humidity sensor, the temperature and humidity sensor is installed inside the pipeline body, and the temperature and humidity sensor is connected with the microcontroller (8).

5. The system according to claim 1, characterized in that, The current and voltage measurement circuit (2) includes current measurement circuit and voltage measurement circuit, the input end of the current measurement circuit is connected with the pipeline for measuring the working current of the pipeline body, the output end of the current measurement circuit is connected with the metering chip (6), the input end of the voltage measurement circuit is connected with the pipeline body for measuring the working voltage of the pipeline body, and the output end of the voltage measurement circuit is connected with the metering chip (6).

6. The system according to claim 1, characterized in that, The input end of the ground leakage current measurement circuit (1) is connected with the pipeline body for measuring the ground leakage current of the pipeline body, and the output end of the ground leakage current measurement circuit (1) is connected with the metering chip (6).

7. The system according to claim 1, characterized in that, The power tube temperature measurement circuit (3) includes digital temperature sensor, the digital temperature sensor is installed in the power tube inside the pipeline body power amplifier, and the digital temperature sensor is connected with the microcontroller (8).

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