Low-power-consumption photovoltaic panel temperature measuring device

Abstract

The utility model relates to the field of photovoltaic technology, in particular to a low-power-consumption photovoltaic panel temperature measuring device, which comprises a temperature detection module used for detecting the temperature of a photovoltaic panel, converting temperature data into electric signals and sending the electric signals to a low-energy-consumption control module through a wireless communication module; the low-energy-consumption control module is used for receiving the temperature data and sending the temperature data to the remote monitoring platform through the Internet of Things communication module; the control module is also used for controlling power on-off of the power control module to realize low-power-consumption management; the power supply control module is used for providing stable working voltage, and under the control of the low-energy-consumption control module, the low-power-consumption effect is realized by controlling the on-off of the power supply of the wireless communication module; and the remote monitoring platform is used for receiving and displaying the temperature data uploaded by the low-energy-consumption control module and providing real-time monitoring and data analysis functions of the working state of the photovoltaic panel. According to the utility model, the temperature of the photovoltaic panel can be accurately monitored with minimum energy consumption, so that the overall efficiency and reliability of a photovoltaic system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic technology, in particular to a low-power photovoltaic panel temperature measuring device. Background Technique

[0002] With the rapid development of photovoltaic technology, photovoltaic panels are more and more widely used in energy production. However, during the operation of photovoltaic panels, their temperature is greatly affected by the environment, and too high or too low temperature will affect the power generation efficiency and service life of photovoltaic panels. Therefore, it is particularly important to monitor the temperature of photovoltaic panels in real time and accurately. Traditional temperature measuring devices often have problems such as high energy consumption, low accuracy, and inconvenient data transmission, and are difficult to meet the requirements of modern photovoltaic systems. Content of the Utility Model

[0003] The purpose of the utility model is to provide a low-power photovoltaic panel temperature measuring device to solve the problems of high energy consumption, low accuracy, and inconvenient data transmission existing in traditional temperature measuring devices.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A low-power photovoltaic panel temperature measuring device includes:

[0006] A temperature detection module, which is used to detect the temperature of the photovoltaic panel and convert the temperature data into an electrical signal and send it to the low-power consumption control module through a wireless communication module;

[0007] A wireless communication module, which is used to realize wireless communication between the temperature detection module and the low-power consumption control module;

[0008] An Internet of Things communication module, which is used to realize wireless communication between the low-power consumption control module and a remote monitoring platform;

[0009] A low-power consumption control module, which is used to receive the temperature data of the temperature detection module and send it to the remote monitoring platform through the Internet of Things communication module; it is also used to control the power on and off of the power control module to achieve low-power management;

[0010] A power control module, which is used to provide a stable working voltage for the temperature detection module, the wireless communication module and the microcontroller, and under the control of the low-power consumption control module, realizes low-power consumption effect by controlling the power on and off of the wireless communication module;

[0011] A remote monitoring platform, which is used to receive and display the temperature data uploaded by the low-power consumption control module, and provide real-time monitoring and data analysis functions for the working state of the photovoltaic panel.

[0012] Preferably, the temperature detection module includes a resistor R16, a thermistor R17 and a capacitor C5;

[0013] One end of the resistor R16 is the temperature detection control terminal VCC_OUT, and the temperature detection control terminal VCC_OUT is electrically connected to the power control module. The other end of the resistor R16, one end of the thermistor R17, and one end of the capacitor C5 are all temperature data conversion terminals NTC. The temperature data conversion terminal NTC is electrically connected to the low-power consumption control module. The other end of the thermistor R17 and the other end of the capacitor C5 are both grounded.

[0014] Preferably, the wireless communication module includes a wireless communication chip U2, a capacitor C3, and a capacitor C4;

[0015] The model of the wireless communication chip U2 is AS01-ML01SMK2;

[0016] The first terminal of the wireless communication chip U2, one end of the capacitor C3, and one end of the capacitor C4 are the wireless power control terminal VCC_NRF, and the wireless power control terminal VCC_NRF is electrically connected to the power control module;

[0017] The second terminal, the third terminal, the fourth terminal, the fifth terminal, the sixth terminal, and the seventh terminal of the wireless communication chip U2 are all electrically connected to the low-power consumption control module;

[0018] The eighth terminal of the wireless communication chip U2, the other end of the capacitor C3, and the other end of the capacitor C4 are all grounded.

[0019] Preferably, the Internet of Things communication module includes an Internet of Things communication chip U3;

[0020] The model of the Internet of Things communication chip U3 is USR-C215;

[0021] The first terminal of the Internet of Things communication chip U3 is grounded;

[0022] The second terminal of the Internet of Things communication chip U3 is connected to a 3.3V voltage;

[0023] The fifth terminal and the sixth terminal of the Internet of Things communication chip U3 are the Internet of Things control terminals TXD_2 and Internet of Things control terminal RXD_2 respectively. The Internet of Things control terminal TXD_2 and the Internet of Things control terminal RXD_2 are both electrically connected to the low-power consumption control module.

[0024] Preferably, the Internet of Things communication module further includes a reset sub-module, and the reset sub-module is used to implement manual configuration and remote configuration of the Internet of Things communication chip U3;

[0025] The reset sub-module includes a capacitor C2, a button KEY3, and a resistor R3;

[0026] The third terminal of the Internet of Things communication chip U3 is electrically connected to one end of the capacitor C2 and one end of the button KEY3 respectively. The other end of the capacitor C2 and the other end of the button KEY3 are both electrically connected to one end of the resistor R3, and the other end of the resistor R3 is grounded.

[0027] Preferably, the Internet of Things communication module further includes a reset sub-module, and the reset sub-module is used to implement manual reset and remote reset of the Internet of Things communication chip U3;

[0028] The reset sub-module includes a capacitor C1, a button KEY1 and a resistor R2;

[0029] One end of the capacitor C1 and one end of the button KEY1 are both electrically connected to the fourth terminal of the Internet of Things communication chip U3. The other end of the capacitor C1 and the other end of the button KEY1 are both electrically connected to one end of the resistor R2, and the other end of the resistor R2 is grounded.

[0030] Preferably, the Internet of Things communication module further includes a status indication sub-module, and the status indication sub-module is used to indicate the working status and the connection status;

[0031] The status indication sub-module includes a connection indicator LED5, a working indicator LED6, a resistor R5 and a resistor R6;

[0032] One end of the connection indicator LED5 is electrically connected to the ninth terminal of the Internet of Things communication chip U3. The other end of the connection indicator LED5 is electrically connected to one end of the resistor R6. One end of the working indicator LED6 is electrically connected to the tenth terminal of the Internet of Things communication chip U3. The other end of the connection indicator LED6 is electrically connected to one end of the resistor R5, and the other ends of the resistor R5 and the resistor R6 are both connected to a 3.3V voltage.

[0033] Preferably, the low-power consumption control module includes a low-power consumption control chip U4, a capacitor C10 and a capacitor C11;

[0034] The first terminal, the fifth terminal, the sixth terminal, the eighth terminal, one end of the capacitor C10 and one end of the capacitor C11 of the low-power consumption control chip U4 are all connected to the power supply voltage. The other end of the capacitor C10, the other end of the capacitor C11, the fourth terminal and the tenth terminal of the low-power consumption control chip U4 are all grounded;

[0035] The ninth terminal of the low-power consumption control chip U4 is a power control terminal P55, and the power control terminal P55 is electrically connected to the power control module;

[0036] The 11th terminal and the 12th terminal of the low-power consumption control chip U4 are the programming terminal R30 and the programming terminal R31 respectively. The programming terminal R30 and the programming terminal R31 are electrically connected to the 1st terminal and the 2nd terminal of the programming socket J4 respectively. The 3rd terminal of the programming socket J4 is grounded, and the 4th terminal of the programming socket J4 is connected to the power supply voltage.

[0037] The 13th terminal, the 14th terminal, the 15th terminal, the 16th terminal, the 17th terminal and the 18th terminal of the low-power consumption control chip U4 are all electrically connected to the wireless communication module.

[0038] The 17th terminal of the low-power consumption control chip U4 is also electrically connected to the Internet of Things control terminal RXD_2 of the Internet of Things communication module.

[0039] The 18th terminal of the low-power consumption control chip U4 is also electrically connected to the Internet of Things control terminal TXD_2 of the Internet of Things communication module.

[0040] The 19th terminal of the low-power consumption control chip U4 is electrically connected to the temperature data conversion terminal NTC of the temperature detection module.

[0041] Preferably, the model of the low-power consumption control chip U4 is STC8H3K64S2-45I-TSSOP20_C2901851.

[0042] Preferably, the power control module includes a thyristor Q1, a resistor R7 and a resistor R1.

[0043] The anode of the thyristor Q1 and one end of the resistor R7 are both the power supply access terminal VCC, and the power supply access terminal is used to access the power supply voltage.

[0044] The control electrode of the thyristor Q1 and the other end of the resistor R7 are both electrically connected to one end of the resistor R5, and the other end of the resistor R5 is electrically connected to the power control terminal P55 of the low-power consumption control module.

[0045] The cathode of the thyristor Q1 and one end of the resistor R1 are both electrically connected to the temperature detection control terminal VCC_OUT of the temperature detection module, and the other end of the resistor R1 is electrically connected to the wireless power control terminal VCC_NRF of the wireless communication module.

[0046] One of the technical solutions in the above technical solutions has the following beneficial effects: The low-power consumption control module is responsible for the low-power management of the entire low-power photovoltaic panel temperature measurement device. It realizes this function by controlling the power supply control module. When data transmission or temperature detection is not required, the low-power consumption control module can send instructions to the power supply control module 5 to turn off or reduce the power supply of the wireless communication module, thereby reducing unnecessary power consumption. At the same time, it may also adjust its own working mode, such as entering the sleep mode, and the working current in the sleep mode is about 3 μA to further reduce power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a schematic diagram of the principle of a low-power photovoltaic panel temperature measurement device of the present utility model;

[0048] Figure 2 is a schematic diagram of the circuit structure of the temperature detection module in a low-power photovoltaic panel temperature measurement device of the present utility model;

[0049] Figure 3 is a schematic diagram of the circuit structure of the wireless communication module in a low-power photovoltaic panel temperature measurement device of the present utility model;

[0050] Figure 4 is a schematic diagram of the circuit structure of the Internet of Things communication module in a low-power photovoltaic panel temperature measurement device of the present utility model;

[0051] Figure 5 is a schematic diagram of the circuit structure of the low-power consumption control module in a low-power photovoltaic panel temperature measurement device of the present utility model;

[0052] Figure 6 is a schematic diagram of the circuit structure of the power supply control module in a low-power photovoltaic panel temperature measurement device of the present utility model;

[0053] In the drawings: temperature detection module 1, wireless communication module 2, Internet of Things communication module 3, low-power consumption control module 4, power supply control module 5. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0054] The technical solutions of the present utility model will be further described below with reference to the drawings and through specific embodiments.

[0055] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0056] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0057] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0058] A low-power photovoltaic panel temperature measurement device, comprising:

[0059] A temperature detection module 1, configured to detect the temperature of the photovoltaic panel and convert the temperature data into an electrical signal and send it to a low-power consumption control module 4 through a wireless communication module 2;

[0060] A wireless communication module 2, configured to enable wireless communication between the temperature detection module 1 and the low-power consumption control module 4;

[0061] An Internet of Things communication module 3, configured to enable wireless communication between the low-power consumption control module 4 and a remote monitoring platform;

[0062] A low-power consumption control module 4, configured to receive the temperature data of the temperature detection module 1 and send it to the remote monitoring platform through the Internet of Things communication module 3; and is also configured to control the power on / off of a power control module 5 to achieve low-power management;

[0063] A power control module 5, configured to provide a stable working voltage for the temperature detection module 1, the wireless communication module 2, and the microcontroller, and under the control of the low-power consumption control module 4, achieve a low-power consumption effect by controlling the power on / off of the wireless communication module 2;

[0064] A remote monitoring platform is used to receive and display the temperature data uploaded by the low-power consumption control module 4, and provide real-time monitoring and data analysis functions for the working status of the photovoltaic panel.

[0065] As Figure 1 shown, the purpose of this low-power photovoltaic panel temperature measurement device is to improve the endurance and data monitoring capabilities. It achieves low power consumption by improving the hardware circuit and working mode, and accesses the remote monitoring platform through the Internet of Things communication module to achieve real-time and comprehensive monitoring of data, and realizes the regulation of the temperature of the photovoltaic panel.

[0066] Specifically, the temperature detection module 11 collects the temperature data of the photovoltaic panel once every 16 seconds, and converts the detected temperature data into an electrical signal. The converted temperature electrical signal sends data to the remote monitoring platform through the wireless communication module and the Internet of Things communication module every 15 minutes to achieve low-power management. Among them, the wireless communication module 2 is responsible for encoding the electrical signal into a wireless signal such as Zigbee, LoRa, Wi-Fi, etc., and sending it to the low-power consumption control module 4 wirelessly, realizing the preliminary transmission of temperature data from the detection point to the processing center. When the low-power consumption control module 4 receives the temperature data from the wireless communication module 2, it performs preliminary processing such as data verification and format conversion, and sends the processed data to the remote monitoring platform through the Internet of Things communication module 3. When the remote monitoring platform receives the temperature data uploaded by the low-power consumption control module 4, it performs real-time display and data analysis. Users can understand information such as the real-time working status and temperature change trend of the photovoltaic panel through this remote monitoring platform, and then optimize and adjust the photovoltaic system or troubleshoot faults.

[0067] Furthermore, the low-power consumption control module 4 is also responsible for the low-power management of the entire low-power photovoltaic panel temperature measurement device. It realizes this function by controlling the power control module 5. When data transmission or temperature detection is not required, the low-power consumption control module 4 can send instructions to the power control module 5 to turn off or reduce the power supply of the wireless communication module 2, thereby reducing unnecessary power consumption. At the same time, it may also adjust its own working mode, such as entering the sleep mode, and the working current in the sleep mode is about 3 μA to further reduce energy consumption.

[0068] For further explanation, the IoT communication module 3 supports a wider range of communication protocols such as NB-IoT, 4G / 5G, MQTT, etc., ensuring that data can be transmitted to remote locations safely and reliably. Moreover, it applies intelligent networking technology internally to achieve effective transmission of data between the communication receiver and the temperature measurement device, enabling wireless communication of 1 to n not exceeding 256. At the same time, to ensure the reliability of the low-power photovoltaic panel temperature measurement device, the code is optimized to send data in batches, reducing internal data interference in the low-power photovoltaic panel temperature measurement device and lowering the packet loss rate.

[0069] For further explanation, a remote monitoring platform is designed through the YouRen cloud platform. The interface of the remote monitoring platform can observe the temperature historical data collected by each temperature measurement device and the voltage values of each temperature measurement device. Historical data can be viewed through the background of the remote monitoring platform. By analyzing the historical data, the temperature curve of photovoltaic panel power generation can be understood, and abnormal temperature data values can be analyzed. Through the historical data of each temperature measurement device, the points with too high temperature can be clearly known, and cooling can be carried out to increase the photothermal conversion rate and improve the power generation efficiency.

[0070] For further explanation, the temperature detection module 1 includes a resistor R16, a thermistor R17, and a capacitor C5;

[0071] One end of the resistor R16 is the temperature detection control terminal VCC_OUT, which is electrically connected to the power supply control module 5. The other end of the resistor R16, one end of the thermistor R17, and one end of the capacitor C5 are all the temperature data conversion terminal NTC, which is electrically connected to the low-power consumption control module 4. The other end of the thermistor R17 and the other end of the capacitor C5 are both grounded.

[0072] Specifically, as Figure 2 shown, the temperature detection of the temperature detection module 1 mainly uses the thermistor R17 for detection. The thermistor R17 is connected in series with a 10kΩ resistor R16 and is connected to the working power supply voltage +5V provided by the power supply control module 5. The function of the resistor R16 is to limit the current to ensure that when the temperature rises to a certain value and the resistance value of the thermistor R17 decreases, the power supply control module 5 will not be directly short-circuited. The thermistor R17 is connected to the pin with ADC function in the low-power consumption control module 4 at the temperature data conversion terminal NTC close to +5V. In this way, the low-power consumption control module 4 can easily collect the input signal and perform temperature conversion through subsequent program writing. A 100nF capacitor C5 is connected in parallel across the two ends of the thermistor R17 for filtering to ensure that the low-power consumption control module 4 can accurately collect the temperature voltage signal and ensure the accuracy of subsequent temperature value conversion.

[0073] For further description, the wireless communication module 2 includes a wireless communication chip U2, a capacitor C3, and a capacitor C4;

[0074] The model of the wireless communication chip U2 is AS01-ML01SMK2;

[0075] The first terminal of the wireless communication chip U2, one end of the capacitor C3, and one end of the capacitor C4 are the wireless power control terminal VCC_NRF, and the wireless power control terminal VCC_NRF is electrically connected to the power control module 5;

[0076] The second terminal, the third terminal, the fourth terminal, the fifth terminal, the sixth terminal, and the seventh terminal of the wireless communication chip U2 are all electrically connected to the low-power consumption control module 4;

[0077] The eighth terminal of the wireless communication chip U2, the other end of the capacitor C3, and the other end of the capacitor C4 are all grounded.

[0078] Specifically, as Figure 3 shown, the wireless communication module 2 mainly relies on the SI24R1-2.4G wireless chip. Its first terminal, i.e., the VCC terminal, is the pin for connecting the basic power supply. The normal operating voltage of the wireless communication module 2 is between 2.5V and 5.5V. The second terminal, the third terminal, the fourth terminal, the fifth terminal, the sixth terminal, and the seventh terminal of the wireless communication module 2 are all electrically connected to the low-power consumption control module 4 to implement the wireless communication function of the low-power consumption control module 4. The wireless communication module 2 also has a capacitor C3 and a capacitor C4 connected in parallel on the lines led out from its first terminal, i.e., the VCC terminal, and its eighth terminal, i.e., the GND terminal, mainly to stabilize the supply voltage of the power control module 5 and absorb the ripples and noise in the power supply.

[0079] For further description, the Internet of Things communication module 3 includes an Internet of Things communication chip U3; the model of the Internet of Things communication chip U3 is USR-C215;

[0080] The first terminal of the Internet of Things communication chip U3 is grounded; the second terminal of the Internet of Things communication chip U3 is connected to a 3.3V voltage; the fifth terminal and the sixth terminal of the Internet of Things communication chip U3 are the Internet of Things control terminal TXD_2 and the Internet of Things control terminal RXD_2 respectively, and the Internet of Things control terminal TXD_2 and the Internet of Things control terminal RXD_2 are both electrically connected to the low-power consumption control module 4.

[0081] Specifically, as Figure 4As shown, the second terminal of the Internet of Things communication chip U3, i.e., the VCC terminal, is the pin connected to the basic power supply, and the normal operating voltage of the Internet of Things communication chip U3 is 3.3V. The Internet of Things control terminal TXD_2 of the Internet of Things communication chip U3, i.e., UART_RX, is the serial port receiving pin, which is connected to the pin with TXD function on the low-power consumption control module 4, while the Internet of Things control terminal RXD_2 of the Internet of Things communication chip U3, i.e., UART_TX, is the serial port sending pin, which is connected to the pin with RXD function on the low-power consumption control module 4. Only the correct connection of these two pins can enable the low-power consumption control module 4 to exchange data with the Internet of Things communication module 3.

[0082] Furthermore, the Internet of Things communication module 3 further includes a reset sub-module, and the reset sub-module is used to implement the manual configuration and remote configuration of the Internet of Things communication chip U3;

[0083] The reset sub-module includes a capacitor C2, a button KEY3, and a resistor R3;

[0084] The third terminal of the Internet of Things communication chip U3 is electrically connected to one end of the capacitor C2 and one end of the button KEY3 respectively. The other end of the capacitor C2 and the other end of the button KEY3 are both electrically connected to one end of the resistor R3, and the other end of the resistor R3 is grounded.

[0085] Specifically, as Figure 4 shown, it is known that pulling down the third terminal of the Internet of Things communication chip U3, i.e., the RELOAD pin, for 1 - 3 seconds can start the simplelink configuration. If you want to restore the factory settings, pull down this RELOAD pin for more than 3 seconds. Therefore, an external circuit is designed to facilitate pulling down the level of this RELOAD pin. A button KEY3 and a current-limiting resistor R3 with a resistance value of 100Ω are connected in series on the line led out from this RELOAD pin and finally grounded, and a capacitor C2 with a suitable capacitance value is connected in parallel on both sides of the button KEY3. Pulling down the level through the button KEY3 can reconfigure when the Internet of Things communication module 3 is powered on or fails. The function of the capacitor C2 is to pull down the level every time the Internet of Things communication module 3 is powered on.

[0086] Furthermore, the Internet of Things communication module 3 further includes a reset sub-module, and the reset sub-module is used to implement the manual reset and remote reset of the Internet of Things communication chip U3;

[0087] The reset sub-module includes a capacitor C1, a button KEY1, and a resistor R2; one end of the capacitor C1 and one end of the button KEY1 are both electrically connected to the fourth terminal of the Internet of Things communication chip U3. The other end of the capacitor C1 and the other end of the button KEY1 are both electrically connected to one end of the resistor R2, and the other end of the resistor R2 is grounded.

[0088] Specifically, as Figure 4 shown, the 4th terminal of the Internet of Things communication chip U3, namely the RESET pin, is used to implement the reset operation. The external circuit of the RESET pin is the same as that of the RELOAD pin. A button KEY1 and a current-limiting resistor R2 with a resistance value of 100 Ω are connected in series on the line led out from the RESET pin and finally grounded. A capacitor C1 with an appropriate capacitance value is connected in parallel on both sides of the button KEY1. By pulling down the level through the button KEY1, reset can be performed when the Internet of Things communication module 3 is powered on or fails. The function of the capacitor C1 is to pull down the level each time the Internet of Things communication module 3 is powered on.

[0089] Furthermore, the Internet of Things communication module 3 further includes a status indication sub-module, and the status indication sub-module is used to indicate the working status and the connection status; the status indication sub-module includes a connection indicator LED5, a working indicator LED6, a resistor R5, and a resistor R6;

[0090] One end of the connection indicator LED5 is electrically connected to the 9th terminal of the Internet of Things communication chip U3, the other end of the connection indicator LED5 is electrically connected to one end of the resistor R6, one end of the working indicator LED6 is electrically connected to the 10th terminal of the Internet of Things communication chip U3, the other end of the connection indicator LED6 is electrically connected to one end of the resistor R5, and the other ends of the resistor R5 and the resistor R6 are both connected to a 3.3V voltage.

[0091] Specifically, as Figure 4 shown, the 9th terminal of the Internet of Things communication chip U3, namely the READY pin, is an indication pin for the normal operation of the Internet of Things communication module 3. This pin is connected to a 3.3V voltage after being connected in series with a working indicator LED6 and a current-limiting resistor R5. When the Internet of Things communication module 3 is working normally, the READY pin outputs a low level, and then the working indicator LED6 lights up. The 10th terminal of the Internet of Things communication chip U3, namely the nLINK pin, is an indication pin for the WIFI connection of the Internet of Things communication module 3. This pin is connected to a 3.3V voltage after being connected in series with a connection indicator LED5 and a current-limiting resistor R6. When the Internet of Things communication module 3 is connected to WIFI, the nLINK pin outputs a low level, and then the connection indicator LED5 lights up.

[0092] Furthermore, the low-power consumption control module 4 includes a low-power consumption control chip U4, a capacitor C10, and a capacitor C11;

[0093] The first terminal, the fifth terminal, the sixth terminal, the eighth terminal of the low-power consumption control chip U4, one end of the capacitor C10, and one end of the capacitor C11 are all connected to the power supply voltage. The other end of the capacitor C10, the other end of the capacitor C11, the fourth terminal and the tenth terminal of the low-power consumption control chip U4 are all grounded;

[0094] The ninth terminal of the low-power consumption control chip U4 is the power supply control terminal P55, and the power supply control terminal P55 is electrically connected to the power supply control module 5;

[0095] The eleventh terminal and the twelfth terminal of the low-power consumption control chip U4 are the programming terminal R30 and the programming terminal R31 respectively. The programming terminal R30 and the programming terminal R31 are respectively electrically connected to the first terminal and the second terminal of the programming socket J4. The third terminal of the programming socket J4 is grounded, and the fourth terminal of the programming socket J4 is connected to the power supply voltage;

[0096] The thirteenth terminal, the fourteenth terminal, the fifteenth terminal, the sixteenth terminal, the seventeenth terminal and the eighteenth terminal of the low-power consumption control chip U4 are all electrically connected to the wireless communication module 2;

[0097] The seventeenth terminal of the low-power consumption control chip U4 is also electrically connected to the IoT control terminal RXD_2 of the IoT communication module 3;

[0098] The eighteenth terminal of the low-power consumption control chip U4 is also electrically connected to the IoT control terminal TXD_2 of the IoT communication module 3;

[0099] The nineteenth terminal of the low-power consumption control chip U4 is electrically connected to the temperature data conversion terminal NTC of the temperature detection module 1.

[0100] Specifically, as Figure 5 shown, the first terminal, the fifth terminal, the sixth terminal, the eighth terminal of the low-power consumption control chip U4, and one end of the capacitors C10 and C11 are all connected to the power supply voltage, providing stable electrical energy for the entire low-power consumption control module 4. The capacitors C10 and C11 are used as filter capacitors to smooth the power supply voltage and reduce the impact of power supply fluctuations on the operation of the chip.

[0101] The ninth terminal of the low-power consumption control chip U4, namely the power supply control terminal P55, is electrically connected to the power supply control module 5. By controlling the level state of this port, the on-off control of the power supply of the entire low-power photovoltaic panel temperature measurement device can be realized, further reducing the energy consumption in the non-working state.

[0102] The eleventh terminal of the low-power consumption control chip U4, namely the programming terminal R30, and the twelfth terminal, namely the programming terminal R31, are respectively connected to the programming socket J4, allowing the chip to be programmed by an external device such as a programmer to realize function customization and update.

[0103] The 13th to 18th terminals of the low-power consumption control chip U4 are all connected to the wireless communication module 2, which is responsible for sending information such as temperature data to the remote monitoring platform wirelessly, such as through Zigbee, LoRa, NB-IoT, etc. Among them, the 17th and 18th terminals are also particularly connected to the IoT control terminals RXD_2 and TXD_2 of the IoT communication module 3, supporting higher-level IoT communication protocols and enhancing the device's interconnection and interoperability capabilities.

[0104] The 19th terminal of the low-power consumption control chip U4 is connected to the temperature data conversion terminal NTC of the temperature detection module 1, receives the analog signal from the temperature detection module 1, and converts it into a digital signal through the internal ADC analog-to-digital converter for subsequent processing and transmission.

[0105] For further explanation, the model of the low-power consumption control chip U4 is STC8H3K64S2-45I-TSSOP20_C2901851. Specifically, by selecting the low-power control chip U4 and optimizing the circuit design, the energy consumption of the entire low-power photovoltaic panel temperature measurement device is significantly reduced, and the battery life is extended, which is particularly suitable for environments with limited energy supply, such as photovoltaic power stations in remote areas, etc.

[0106] For further explanation, the power control module 5 includes a thyristor Q1, a resistor R7, and a resistor R1;

[0107] The anode of the thyristor Q1 and one end of the resistor R7 are both the power access terminal VCC, and the power access terminal is used to access the power supply voltage;

[0108] The control electrode of the thyristor Q1 and the other end of the resistor R7 are both electrically connected to one end of the resistor R5, and the other end of the resistor R5 is electrically connected to the power control terminal P55 of the low-power consumption control module 4;

[0109] The cathode of the thyristor Q1 and one end of the resistor R1 are both electrically connected to the temperature detection control terminal VCC_OUT of the temperature detection module 1, and the other end of the resistor R1 is electrically connected to the wireless power control terminal VCC_NRF of the wireless communication module 2.

[0110] Specifically, as Figure 3 shown, the power control module 5 uses a thyristor Q1 with the model S12305 to connect to the power control terminal P55 of the low-power consumption control module 4 to control the on and off of the power supply VCC, so as to achieve that when the low-power consumption control module 4 is in the sleep state, the thyristor Q1 is not conducting, and the power supply of other modules cannot be input, reducing the power consumption of the low-power consumption control module 4 in the sleep state. Only when the low-power consumption control module 4 is in normal operation, the thyristor Q1 conducts to provide electrical energy for all modules.

[0111] The technical principle of the present utility model has been described in conjunction with specific embodiments above. These descriptions are only for explaining the principle of the present utility model and cannot be construed as limiting the protection scope of the present utility model in any way. Based on the explanations herein, those skilled in the art can readily conceive of other specific embodiments of the present utility model without creative efforts, and these equivalent variations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A low-power photovoltaic panel temperature measurement device, characterized in that: include: A temperature detection module (1) is used to detect the temperature of the photovoltaic panel and convert the temperature data into an electrical signal and send it to the low energy consumption control module (4) via the wireless communication module (2); A wireless communication module (2) is used to implement wireless communication between the temperature detection module (1) and the low energy consumption control module (4); An Internet of Things communication module (3) is used to realize wireless communication between the low energy consumption control module (4) and the remote monitoring platform; The low energy consumption control module (4) is used to receive the temperature data of the temperature detection module (1) and send it to the remote monitoring platform through the Internet of Things communication module (3); it is also used to control the power on and off of the power control module (5) to achieve low power consumption management; The power control module (5) is used to provide a stable operating voltage for the temperature detection module (1), the wireless communication module (2) and the microcontroller, and to achieve a low power consumption effect by controlling the power on and off of the wireless communication module (2) under the control of the low energy consumption control module (4); The remote monitoring platform is used to receive and display the temperature data uploaded by the low energy consumption control module (4), and provides real-time monitoring and data analysis functions for the working status of the photovoltaic panels.

2. A low-power photovoltaic panel temperature measuring device according to claim 1, characterized in that: The temperature detection module (1) comprises a resistor R16, a thermistor R17 and a capacitor C5; One end of the resistor R16 is a temperature detection control terminal VCC_OUT, and the temperature detection control terminal VCC_OUT is electrically connected to the power control module (5); the other end of the resistor R16, one end of the thermistor R17 and one end of the capacitor C5 are all temperature data conversion terminals NTC, and the temperature data conversion terminal NTC is electrically connected to the low energy consumption control module (4); the other end of the thermistor R17 and the other end of the capacitor C5 are both grounded.

3. A low-power photovoltaic panel temperature measuring device according to claim 2, characterized in that: The wireless communication module (2) comprises a wireless communication chip U2, a capacitor C3 and a capacitor C4; The model of the wireless communication chip U2 is AS01-ML01SMK2; The first end of the wireless communication chip U2, one end of the capacitor C3 and one end of the capacitor C4 are the wireless power control terminal VCC_NRF, and the wireless power control terminal VCC_NRF is electrically connected to the power control module (5); The second end, the third end, the fourth end, the fifth end, the sixth end and the seventh end of the wireless communication chip U2 are all electrically connected to the low energy consumption control module (4); The eighth terminal of the wireless communication chip U2, the other terminal of the capacitor C3 and the other terminal of the capacitor C4 are all grounded.

4. A low-power photovoltaic panel temperature measuring device according to claim 3, characterized in that: The Internet of Things communication module (3) comprises an Internet of Things communication chip U3; The model of the IoT communication chip U3 is USR-C215; The first terminal of the Internet of Things communication chip U3 is grounded; The second terminal of the Internet of Things communication chip U3 is connected to a 3.3V voltage; The fifth and sixth terminals of the Internet of Things communication chip U3 are the Internet of Things control terminal TXD_2 and the Internet of Things control terminal RXD_2 respectively, and the Internet of Things control terminal TXD_2 and the Internet of Things control terminal RXD_2 are both electrically connected to the low-energy consumption control module (4).

5. A low-power photovoltaic panel temperature measuring device according to claim 4, characterized in that: The Internet of Things communication module (3) further comprises a reset submodule, wherein the reset submodule is used to implement manual configuration and remote configuration of the Internet of Things communication chip U3; The reset submodule includes a capacitor C2, a key KEY3 and a resistor R3; The third end of the IoT communication chip U3 is electrically connected to one end of the capacitor C2 and one end of the key KEY3 respectively, the other end of the capacitor C2 and the other end of the key KEY3 are electrically connected to one end of the resistor R3, and the other end of the resistor R3 is grounded.

6. A low-power photovoltaic panel temperature measuring device according to claim 4, characterized in that: The Internet of Things communication module (3) further comprises a reset submodule, wherein the reset submodule is used to realize manual reset and remote reset of the Internet of Things communication chip U3; The reset submodule includes a capacitor C1, a button KEY1 and a resistor R2; One end of the capacitor C1 and one end of the key KEY1 are electrically connected to the 4th end of the IoT communication chip U3, the other end of the capacitor C1 and the other end of the key KEY1 are electrically connected to one end of the resistor R2, and the other end of the resistor R2 is grounded.

7. A low-power photovoltaic panel temperature measuring device according to claim 4, characterized in that: The Internet of Things communication module (3) further comprises a status indication submodule, wherein the status indication submodule is used to indicate a working status and a connection status; The status indication submodule includes a connection indicator LED5, a working indicator LED6, a resistor R5 and a resistor R6; One end of the connection indicator light LED5 is electrically connected to the 9th end of the Internet of Things communication chip U3, the other end of the connection indicator light LED5 is electrically connected to one end of the resistor R6, one end of the working indicator light LED6 is electrically connected to the 10th end of the Internet of Things communication chip U3, the other end of the connection indicator light LED5 is electrically connected to one end of the resistor R5, and the other end of the resistor R5 and the other end of the resistor R6 are both connected to a 3.3V voltage.

8. A low-power photovoltaic panel temperature measuring device according to claim 4, characterized in that: The low energy consumption control module (4) comprises a low energy consumption control chip U4, a capacitor C10 and a capacitor C11; The first end, the fifth end, the sixth end, the eighth end, one end of the capacitor C10 and one end of the capacitor C11 of the low energy consumption control chip U4 are all connected to the power supply voltage, and the other end of the capacitor C10, the other end of the capacitor C11, the fourth end and the tenth end of the low energy consumption control chip U4 are all grounded; The ninth terminal of the low-energy consumption control chip U4 is a power control terminal P55, and the power control terminal P55 is electrically connected to the power control module (5); The 11th and 12th ends of the low-energy control chip U4 are respectively a burning end R30 and a burning end R31, the burning end R30 and the burning end R31 are respectively electrically connected to the 1st and 2nd ends of the burning socket J4, the 3rd end of the burning socket J4 is grounded, and the 4th end of the burning socket J4 is connected to the power supply voltage; The 13th terminal, the 14th terminal, the 15th terminal, the 16th terminal, the 17th terminal and the 18th terminal of the low-energy control chip U4 are all electrically connected to the wireless communication module (2); The 17th terminal of the low-energy consumption control chip U4 is also electrically connected to the Internet of Things control terminal RXD_2 of the Internet of Things communication module (3); The 18th terminal of the low-energy consumption control chip U4 is also electrically connected to the Internet of Things control terminal TXD_2 of the Internet of Things communication module (3); The 19th terminal of the low-energy consumption control chip U4 is electrically connected to the temperature data conversion terminal NTC of the temperature detection module (1).

9. A low-power photovoltaic panel temperature measuring device according to claim 8, characterized in that: The model of the low energy consumption control chip U4 is STC8H3K64S2-45I-TSSOP20_C2901851.

10. A low-power photovoltaic panel temperature measuring device according to claim 8, characterized in that: The power control module (5) comprises a crystal tube Q1, a resistor R7 and a resistor R1; The anode of the crystal tube Q1 and one end of the resistor R7 are both power supply access terminals VCC, and the power supply access terminals are used to access the power supply voltage; The control electrode of the crystal tube Q1 and the other end of the resistor R7 are both electrically connected to one end of the resistor R5, and the other end of the resistor R5 is electrically connected to the power control end P55 of the low energy consumption control module (4); The cathode of the crystal tube Q1 and one end of the resistor R1 are both electrically connected to the temperature detection control terminal VCC_OUT of the temperature detection module (1), and the other end of the resistor R1 is electrically connected to the wireless power control terminal VCC_NRF of the wireless communication module (2).

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