CN214474526U - Photovoltaic monitoring system - Google Patents
Photovoltaic monitoring system Download PDFInfo
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- CN214474526U CN214474526U CN202120336828.XU CN202120336828U CN214474526U CN 214474526 U CN214474526 U CN 214474526U CN 202120336828 U CN202120336828 U CN 202120336828U CN 214474526 U CN214474526 U CN 214474526U
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Abstract
The utility model relates to a photovoltaic field, concretely relates to photovoltaic monitoring system, including parameter acquisition module, control module, loRa communication module, power module and interface circuit module, control module is connected with parameter acquisition module and loRa communication module respectively, control module sends the parameter information that parameter acquisition module transmitted to outside remote terminal through loRa communication module; the power module provides power for the system, the power module is a lithium battery pack, the interface circuit module is connected with the lithium battery pack, and the interface circuit module comprises a photovoltaic interface circuit and a USB interface circuit.
Description
Technical Field
The utility model relates to a photovoltaic field, concretely relates to photovoltaic monitored control system.
Background
The photovoltaic monitoring system realizes remote online monitoring, tracking, state confirmation and control and high-efficiency energy-saving operation of the photovoltaic power station. Therefore, the resource utilization rate and the productivity level of the photovoltaic power station equipment are improved, the operation safety and the task reliability of the equipment are effectively improved, and the whole life cycle cost of the system is reduced. At present, a communication mode of a photovoltaic monitoring system is a wired communication mode or a wireless communication mode, wherein the wireless communication mode mostly adopts GPRS, wifi, infrared and the like.
However, the wired communication mode is suitable for short-distance transmission, and has the troubles that the wired communication mode is difficult to realize and inconvenient to maintain in later period when the installation environment is severe; the GPRS is adopted, wifi and infrared are realized, transmission distance is limited, power consumption is large, power supply duration of a system is short, and working performance of the system is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a photovoltaic monitored control system has realized when using wireless communication's mode, has greatly increased the communication distance of system.
The utility model discloses take following technical scheme to realize above-mentioned purpose, photovoltaic monitored control system is applied to the remote monitoring to photovoltaic power plant, including parameter acquisition module, control module and loRa communication module, control module is connected with parameter acquisition module and loRa communication module respectively, control module sends the parameter information of parameter acquisition module transmission for outside remote terminal through loRa communication module.
Further, in order to display the parameters in real time, the photovoltaic monitoring system further comprises a liquid crystal display module, and the liquid crystal display module is connected with the control module.
Furthermore, in order to realize power supply to the system, the photovoltaic monitoring system further comprises a power module, wherein the power module provides power for the system, and the power module is a lithium battery pack.
Furthermore, in order to improve the endurance capacity of the lithium battery pack, the photovoltaic monitoring system further comprises an interface circuit module, the interface circuit module is connected with the lithium battery pack, and the interface circuit module comprises a photovoltaic interface circuit and a USB interface circuit.
Furthermore, in order to improve the conversion efficiency of the parameter signals, the photovoltaic monitoring system further comprises a signal conditioning circuit, and the signal conditioning circuit is connected between the parameter acquisition module and the control module.
The utility model discloses a loRa communication module has realized when using wireless communication's mode, has greatly increased the communication distance of system, and the liquid crystal display module can show parameter signal in real time, utilizes the electric energy of photovoltaic power plant to charge for lithium cell group, has improved power duration; the signal conditioning circuit converts the parameter signals, and the system efficiency is improved.
Drawings
Fig. 1 is a block diagram of the embodiment of the present invention.
Fig. 2 is a circuit diagram of an embodiment of the signal conditioning circuit of the present invention.
Detailed Description
The utility model discloses times photovoltaic monitored control system is applied to the remote monitoring to photovoltaic power generation station, including parameter acquisition module, control module and loRa communication module, control module is connected with parameter acquisition module and loRa communication module respectively, control module sends the parameter information of parameter acquisition module transmission for outside remote terminal through loRa communication module.
The control module can adopt an MCU with low power consumption, and the power consumption of the system can be further reduced.
In order to display the parameters in real time, the photovoltaic monitoring system further comprises a liquid crystal display module, and the liquid crystal display module is connected with the control module.
In order to realize the power supply of the system, the photovoltaic monitoring system further comprises a power module, the power module provides power for the system, and the power module is a lithium battery pack.
In order to improve the endurance capacity of the lithium battery pack, the photovoltaic monitoring system further comprises an interface circuit module, the interface circuit module is connected with the lithium battery pack, and the interface circuit module comprises a photovoltaic interface circuit and a USB interface circuit.
In order to improve the conversion efficiency of the parameter signals, the photovoltaic monitoring system further comprises a signal conditioning circuit, and the signal conditioning circuit is connected between the parameter acquisition module and the control module.
Signal conditioning circuits often convert analog signals from sensors into digital signals for data acquisition, process control, performing computational display readout, and other purposes. Analog sensors can measure many physical quantities such as temperature, pressure, force, flow, motion, position, PH, light intensity, etc. However, the sensor signal cannot be directly converted to digital data because the sensor output is a relatively small voltage, current, or variation and therefore must be conditioned before being converted to digital data.
Conditioning is to amplify, buffer or scale the analog signal to fit it to the input of an analog-to-digital converter (ADC). The ADC then digitizes the analog signal and sends the digital signal to a microcontroller or other digital device for data processing by the system.
The utility model discloses be applied to the remote monitoring to the photovoltaic power station, the photovoltaic power station includes photovoltaic cell, and the electric energy is stored in photovoltaic cell.
Fig. 1 is a structural block diagram of an embodiment of the present invention, in which a high-precision current sensor collects current signals of a photovoltaic cell in real time, and then sends the signals to a signal conditioning circuit, and after the signals are converted by the signal conditioning circuit, the signals are sent to a low-power consumption control module MCU, and the control module sends the signals to an external remote terminal through a Lora wireless transmission module; the photovoltaic cell is further connected with a photovoltaic cell charging interface circuit, the photovoltaic cell charging interface circuit is connected with a lithium battery power supply, the lithium battery power supply provides power for the system, and the lithium battery power supply is further connected with a USB interface.
Fig. 2 is a circuit diagram of an embodiment of the signal conditioning circuit, the positive electrode of the photovoltaic cell is connected to the slide rheostat Rp1 through a resistor R1, the slide rheostat Rp1 is grounded through a resistor R2, the negative electrode of the photovoltaic cell is grounded, and one end of the resistor R2 connected to the slide rheostat Rp1 is further connected to the pin CH1 of the a/D conversion chip ADC 0832;
the power supply VCC is connected with a slide rheostat Rp2 through a resistor R3, the slide rheostat Rp2 is grounded through a resistor R4, and the slide rheostat Rp2 is also connected with the reverse input end of the operational amplifier LM 324; the 2 nd pin of the high-precision current sensor interface U1 is connected with the equidirectional input end of the operational amplifier LM324 through a resistor R5, a resistor R5 is also connected with the output end of the operational amplifier LM324 through a slide rheostat R7, and the output end of the LM324 is also connected with the 2 nd pin CH0 of the A/D conversion chip ADC0832 through a resistor R8;
the 4 th pin GND of the A/D conversion chip ADC0832 is grounded and is also connected with the 2 nd pin CH0 of the A/D conversion chip ADC0832 through a capacitor C1; the capacitor C2 is also connected with the 3 rd pin CH1 of the A/D conversion chip ADC 0832; the 1 st pin CS of the A/D conversion chip is connected with the external input PA0, the 6 th pin DO of the A/D conversion chip is connected with the external input PA2, the 5 th pin DI of the A/D conversion chip is connected with the external input PA3, the 8 th pin VCC/REF of the A/D conversion chip is connected with the reference voltage, and the 7 th pin CLK of the A/D conversion chip is connected with the external input PA 1.
To sum up, the utility model discloses a when using wireless communication's mode, greatly increased the communication distance of system to improve the duration of its lithium cell group, can also improve the efficiency of parameter signal conversion.
Claims (3)
1. The photovoltaic monitoring system is applied to remote monitoring of a photovoltaic power station and is characterized by comprising a parameter acquisition module, a control module, an LoRa communication module, a power supply module and an interface circuit module, wherein the control module is respectively connected with the parameter acquisition module and the LoRa communication module, and the control module sends parameter information transmitted by the parameter acquisition module to an external remote terminal through the LoRa communication module; the power module provides power for the system, the power module is a lithium battery pack, the interface circuit module is connected with the lithium battery pack, and the interface circuit module comprises a photovoltaic interface circuit and a USB interface circuit.
2. The photovoltaic monitoring system of claim 1, further comprising a liquid crystal display module, the liquid crystal display module being coupled to the control module.
3. The photovoltaic monitoring system of claim 2, further comprising a signal conditioning circuit connected between the parameter acquisition module and the control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120336828.XU CN214474526U (en) | 2021-02-05 | 2021-02-05 | Photovoltaic monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120336828.XU CN214474526U (en) | 2021-02-05 | 2021-02-05 | Photovoltaic monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214474526U true CN214474526U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120336828.XU Active CN214474526U (en) | 2021-02-05 | 2021-02-05 | Photovoltaic monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214474526U (en) |
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2021
- 2021-02-05 CN CN202120336828.XU patent/CN214474526U/en active Active
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