Photovoltaic current collection line fitting temperature rise state monitoring system

Abstract

The utility model relates to the technical field of photovoltaic equipment, in particular to a photovoltaic current collection line fitting temperature rise state monitoring system, which mainly comprises a plurality of fitting temperature rise monitoring sensors for acquiring temperature data of strain clamp fittings, and a data receiving terminal for receiving the temperature data acquired by the plurality of fitting temperature rise monitoring sensors; and the strain clamp temperature state monitoring platform receives the temperature data sent by the data receiving terminal. Through the above device, the temperature of the strain clamp fitting can be collected in real time, whether potential safety hazards occur or not is judged through the strain clamp temperature state monitoring platform according to the temperature rise state of the strain clamp fitting, and early warning is carried out in time. Based on a Bluetooth ultra-low power consumption wireless communication technology, wireless ad hoc network communication between the sensor and a data receiving terminal and reliable data return are realized.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic equipment technology, and more specifically, to a photovoltaic power collection line fitting temperature rise monitoring system. Background Technology

[0002] With the rapid development of the photovoltaic new energy power generation industry, the transmission lines of photovoltaic power plants are also facing increasing operation and maintenance pressure. The tension clamps of the collector lines are important equipment in the power transmission system, mainly used to fix and support the collector lines to ensure their stability and safety.

[0003] If the bolts of the tension clamps in the collector line are not tightened or loosened due to vibration or swaying during normal operation, the resistance of the tension clamp joint will increase, causing the joint temperature to rise. The existing technology does not monitor this in real time, which can lead to the conductor burning out in severe cases. Utility Model Content

[0004] The purpose of this invention is to provide a photovoltaic power collector line fitting temperature rise monitoring system to solve the problem of untimely temperature monitoring of tension clamps in existing technologies.

[0005] This utility model is achieved through the following technical solution:

[0006] A photovoltaic power collector fitting temperature rise monitoring system includes:

[0007] Several fitting temperature rise monitoring sensors are used to be respectively installed on the tension clamp fittings to collect the temperature data of the tension clamp fittings.

[0008] A data receiving terminal is communicatively connected to several of the hardware temperature rise monitoring sensors and is used to receive temperature data collected by the several temperature rise monitoring sensors.

[0009] A tension clamp temperature status monitoring platform is communicatively connected to the data receiving terminal and is used to receive temperature data sent by the data receiving terminal.

[0010] Preferably, the fitting temperature rise monitoring sensor includes a first Bluetooth module, a Bluetooth antenna, a temperature measuring chip, and a sensing power harvesting unit. The first Bluetooth module is connected to the Bluetooth antenna, the temperature measuring chip, and the first power supply unit. The first Bluetooth module includes a real-time clock and a data storage unit.

[0011] Preferably, the first power supply unit includes a DC-AC conversion module and a CT energy harvesting coil. The CT energy harvesting coil is connected to the DC-AC conversion module and is used to acquire the spatial magnetic field of the line and convert it into electrical energy to power the sensor.

[0012] Preferably, the data receiving terminal includes a second Bluetooth module, a processor, a communication unit, and a second power supply unit. The processor is connected to the second Bluetooth module, the communication unit, and the second power supply unit respectively. The first Bluetooth module is connected to the second Bluetooth module via Bluetooth communication. The processor is also connected to a real-time clock and a data storage unit.

[0013] Preferably, the second power unit includes a solar panel, a BMS control unit, and a battery, wherein the BMS control unit is connected to the solar panel and the battery respectively.

[0014] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0015] The structure provided by this utility model mainly includes several temperature rise monitoring sensors for tension clamps, a data receiving terminal that receives the temperature data collected by the sensors, and a tension clamp temperature status monitoring platform that receives the temperature data sent by the data receiving terminal. Through this device, the temperature of the tension clamps can be collected in real time. Based on the temperature rise status of the tension clamps, the monitoring platform can determine whether there are any safety hazards and provide timely warnings. Based on Bluetooth ultra-low power wireless communication technology, wireless self-organizing network communication between the sensors and the data receiving terminal is achieved, ensuring reliable data transmission. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the hardware temperature rise monitoring sensor and data receiving terminal of this utility model;

[0018] Figure 2 This is a schematic diagram of the transmission process of this utility model.

[0019] Icons: 1- Fitting temperature rise monitoring sensor, 2- Data receiving terminal. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Please refer to Figures 1-2 This utility model provides a photovoltaic power collector line hardware temperature rise monitoring system, comprising:

[0022] Several fitting temperature rise monitoring sensors 1 are used to be respectively installed on the tension clamp fitting to collect the temperature data of the tension clamp fitting;

[0023] Data receiving terminal 2 is communicatively connected to several of the hardware temperature rise monitoring sensors 1, and is used to receive temperature data collected by the several temperature rise monitoring sensors;

[0024] A tension clamp temperature status monitoring platform is communicatively connected to the data receiving terminal 2 and is used to receive temperature data sent by the data receiving terminal 2.

[0025] The structure provided by this utility model mainly includes several temperature rise monitoring sensors 1 for collecting temperature data of the tension clamp hardware; a data receiving terminal 2 for receiving the temperature data collected by the temperature rise monitoring sensors; and a tension clamp temperature status monitoring platform for receiving the temperature data sent by the data receiving terminal 2. Through the above device, the temperature of the tension clamp hardware can be collected in real time. Based on the temperature rise status of the tension clamp hardware, the tension clamp temperature status monitoring platform can determine whether there are any safety hazards and provide timely warnings. Based on Bluetooth ultra-low power wireless communication technology, wireless self-organizing network communication between the sensors and the data receiving terminal 2 is realized, ensuring reliable data transmission.

[0026] The tension clamp hardware temperature rise sensor adopts an integrated structure design. Based on inductive self-powered and contact temperature measurement technology, it realizes real-time monitoring of the temperature rise status of tension clamp hardware. It adopts ultra-low power consumption design of hardware and software and inductive self-powered technology, and can operate stably with a load current of 2A.

[0027] In one exemplary embodiment of this utility model, the fitting temperature rise monitoring sensor 1 includes a first Bluetooth module, a Bluetooth antenna, a temperature measuring chip, and a sensing power harvesting unit. The first Bluetooth module is connected to the Bluetooth antenna, the temperature measuring chip, and the first power supply unit. The first Bluetooth module includes a real-time clock and a data storage unit.

[0028] Specifically, the first Bluetooth module is model NRF52832, with a built-in data storage unit and real-time clock. The temperature measurement chip is connected to the Bluetooth chip through an AD analog sampling interface, and the Bluetooth antenna is made of 2.4GHz flexible PCB material.

[0029] Secondly, the first power supply unit includes a DC-AC conversion module and a CT energy harvesting coil. The CT energy harvesting coil is connected to the DC-AC conversion module and is used to acquire the spatial magnetic field of the line and convert it into electrical energy to power the sensor.

[0030] In one exemplary embodiment of this utility model, the data receiving terminal 2 includes a second Bluetooth module, a processor, a communication unit, and a second power supply unit. The processor is connected to the second Bluetooth module, the communication unit, and the second power supply unit respectively. The first Bluetooth module is connected to the second Bluetooth module via Bluetooth communication. The processor is also connected to a real-time clock and a data storage unit.

[0031] Specifically, the processor is an STM32F429 microcontroller, the communication unit is a low-power narrowband CAT1, the CAT1 narrowband data transmission module uses EC800K, the real-time clock uses DS1302, and it is connected to the processor through the I 2C bus interface; the data storage unit uses W25Q128 memory chip, which is connected to the processor through the SPI high-speed bus, and the Bluetooth module is connected to the processor through the UART interface.

[0032] Secondly, the second power supply unit includes a solar panel, a BMS control unit, and a battery, with the BMS control unit connected to the solar panel and the battery respectively.

[0033] In the above embodiments of this utility model, the fitting temperature rise monitoring sensor 1 is installed on the tension clamp nut of the photovoltaic power collection line and fixed to the tension clamp fitting through installation accessories. The temperature measuring chip is in close contact with the unit being measured. The fitting temperature rise monitoring sensor 1 sends data to the data receiving terminal 2 installed on the tower side via Bluetooth communication channel. When the data receiving terminal 2 on the tower side receives the fitting temperature data, performs protocol normalization processing, and sends it to the tension clamp temperature status monitoring platform, the tension clamp temperature status monitoring platform analyzes whether the tension clamp fitting is overheating or the bolts are loose based on the received tension clamp fitting temperature rise data. If a potential hazard is detected, an early warning is issued to remind maintenance personnel to confirm and handle the situation on-site.

[0034] The data receiving terminal 2 is used to collect and process the temperature rise data of the tension clamp hardware sensor, and transmit it back to the monitoring platform through the CAT1 communication unit for analysis and early warning.

[0035] The tension clamp hardware temperature rise sensor adopts an ultra-low power consumption design in both hardware and software, and a magnetic field induction self-powered technology. It can operate normally with a 2A load current without the need for an external power supply. It is stable and reliable in operation, and monitors the temperature rise of the hardware in real time through chip and contact digital temperature measurement technology. It features a wide data acquisition range and high accuracy. Furthermore, it integrates communication, power supply, and processing into a single design, with a compact structure and easy installation.

[0036] Data receiving terminal 2 is installed on the crossarm of the tower, within a range of 20 to 30 meters from the hardware temperature rise sensor. It can receive sensor data according to the set sensor whitelist, realize the aggregation and processing of sensor data, and upload it in a unified manner.

[0037] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A photovoltaic power collector line fitting temperature rise monitoring system, characterized in that, include: Several fitting temperature rise monitoring sensors are used to be respectively installed on the tension clamp fitting to collect the temperature data of the tension clamp fitting; A data receiving terminal is communicatively connected to several of the hardware temperature rise monitoring sensors and is used to receive temperature data collected by the several temperature rise monitoring sensors. A tension clamp temperature status monitoring platform, wherein the tension clamp temperature status monitoring platform is communicatively connected to the data receiving terminal, and is used to receive temperature data sent by the data receiving terminal; The hardware temperature rise monitoring sensor includes a first Bluetooth module, a Bluetooth antenna, a temperature measuring chip, and a sensing power harvesting unit. The first Bluetooth module is connected to the Bluetooth antenna, the temperature measuring chip, and the first power supply unit. The first Bluetooth module includes a real-time clock and a data storage unit.

2. The photovoltaic power collector fitting temperature rise monitoring system according to claim 1, characterized in that, The first power supply unit includes a DC-AC conversion module and a CT energy harvesting coil. The CT energy harvesting coil is connected to the DC-AC conversion module and is used to acquire the spatial magnetic field of the line and convert it into electrical energy to power the sensor.

3. The photovoltaic power collector fitting temperature rise monitoring system according to claim 2, characterized in that, The data receiving terminal includes a second Bluetooth module, a processor, a communication unit, and a second power supply unit. The processor is connected to the second Bluetooth module, the communication unit, and the second power supply unit respectively. The first Bluetooth module is connected to the second Bluetooth module via Bluetooth communication. The processor is also connected to a real-time clock and a data storage unit.

4. The photovoltaic power collector fitting temperature rise monitoring system according to claim 3, characterized in that, The second power supply unit includes a solar panel, a BMS control unit, and a battery, with the BMS control unit connected to both the solar panel and the battery.

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