Photovoltaic energy storage system and control device and early warning method thereof

Abstract

The invention provides a photovoltaic energy storage system and a control device and an early warning method thereof. The photovoltaic energy storage system is arranged in a building, the building is provided with a balcony and a roof, the roof is provided with photovoltaic components, and the photovoltaic energy storage system comprises a sensor assembly and photovoltaic energy storage equipment. The sensor assembly can detect environmental parameters, and the environmental parameters comprise temperature, humidity, smoke concentration and / or ponding state; the photovoltaic energy storage equipment is in communication connection with the sensor assembly, and the photovoltaic energy storage equipment is used for receiving the environmental parameters from the sensor assembly and generating an early warning mechanism according to the environmental parameters, so that the photovoltaic energy storage equipment sends out early warning information according to the early warning mechanism; and adjusting the charging power of the photovoltaic energy storage equipment, stopping charging from the photovoltaic component, stopping outputting electric energy through the off-network port and / or disconnecting the electric connection between the grid-connected port and the household power grid. The photovoltaic energy storage system can avoid the situation that no corresponding safety measures exist when environmental parameters are abnormal, and stable operation of photovoltaic energy storage equipment is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic energy storage technology, specifically to a photovoltaic energy storage system and its control device and early warning method. Background Technology

[0002] Currently, in related technologies, balcony photovoltaic energy storage devices (including battery packs and inverters) are installed outdoors. The environmental sensors operate independently of the photovoltaic energy storage device; even after a sensor alarm, the device continues to operate, which can easily lead to danger. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] Therefore, the first aspect of the present invention proposes a photovoltaic energy storage system.

[0005] A second aspect of the present invention provides an early warning method.

[0006] A third aspect of the present invention provides a control device for a photovoltaic energy storage system.

[0007] In view of the above, a first aspect of the present invention provides a photovoltaic energy storage system. The photovoltaic energy storage system is installed in a building, which has a balcony and a roof. A photovoltaic component is installed on the roof. The photovoltaic energy storage system includes a sensor assembly and a photovoltaic energy storage device. The sensor assembly is located inside the balcony and is capable of detecting environmental parameters, including temperature, humidity, smoke concentration, and / or water accumulation. The photovoltaic energy storage device is installed on the balcony and electrically connected to the photovoltaic component. The photovoltaic energy storage device is communicatively connected to the sensor assembly. The photovoltaic energy storage device has a grid-connected port and an off-grid port. The grid-connected port is used to connect to the household power grid, and the off-grid port is used to connect to a first load. The photovoltaic energy storage device receives environmental parameters from the sensor assembly, generates an early warning mechanism based on the environmental parameters, and issues an early warning message according to the early warning mechanism. It also adjusts the charging power of the photovoltaic energy storage device, stops charging from the photovoltaic component, stops outputting electrical energy through the off-grid port, and / or disconnects the electrical connection between the grid-connected port and the household power grid.

[0008] In this technical solution, the photovoltaic energy storage system is installed in a building with balconies and a roof. Photovoltaic components are installed and fixed on the roof to generate electricity by receiving sunlight. The photovoltaic energy storage system includes sensor components and photovoltaic energy storage devices. The system can receive and store the electricity generated by the photovoltaic components and then supply the stored electricity to the home power grid or directly plug it into the primary load of the photovoltaic energy storage device for use.

[0009] The sensor assembly is located inside the balcony and can detect environmental parameters, including temperature, humidity, smoke concentration, and / or water accumulation. This allows the sensor assembly to monitor the environment surrounding the photovoltaic energy storage device, specifically detecting environmental parameters of the balcony. For example, detecting temperature allows the sensor to determine the temperature around the photovoltaic energy storage device; detecting humidity allows it to determine the humidity level; detecting smoke concentration allows it to determine the smoke level; and detecting water accumulation allows it to determine the water level.

[0010] The photovoltaic (PV) energy storage device is installed on the balcony and electrically connected to the PV components to facilitate its arrangement and allow it to receive electrical energy generated by the rooftop PV modules. The PV energy storage device is communicatively connected to sensor components. It has a grid-connected port for connecting to the household power grid and an off-grid port for connecting to a primary load, enabling power transmission between the PV energy storage device and the household power grid. This allows the PV energy storage device to provide power to the external primary load. The PV energy storage device also receives environmental parameters from the sensor components, establishing a connection between the PV energy storage device and the sensor components for data transmission.

[0011] Photovoltaic energy storage devices generate early warning mechanisms based on environmental parameters. These mechanisms trigger warnings and adjust the device's charging power, stopping charging from photovoltaic components, ceasing power output through the off-grid port, and / or disconnecting the grid connection. This regulates the device's operating status; essentially, the device analyzes sensor parameters to generate early warnings and adjusts its operation accordingly. Disconnecting the grid connection signifies the device actively disconnecting from the grid.

[0012] This application establishes a communication connection between a photovoltaic energy storage device and a sensor assembly. The photovoltaic energy storage device receives environmental parameters from the sensor assembly and generates an early warning mechanism based on these parameters. This mechanism enables the photovoltaic energy storage device to issue early warning information and adjust its operating state accordingly. This achieves communication between the photovoltaic energy storage device and the sensor assembly, allowing them to work in tandem. The photovoltaic energy storage device can adjust its operating state based on the environmental parameters detected by the sensor assembly, ensuring that it has appropriate safety measures in place when environmental parameters are abnormal, thus guaranteeing the safe and stable operation of the photovoltaic energy storage device.

[0013] In one embodiment of the present invention, optionally, the photovoltaic energy storage device includes a battery module, an inverter, a communication module, and a processing module. The inverter is connected to the battery module and includes an input port, a grid-connected port, and an off-grid port. The input port is used to connect to the photovoltaic components. The communication module and the sensor module are communicatively connected. The processing module generates an early warning mechanism based on environmental parameters, enabling the photovoltaic energy storage device to issue early warning information and adjust its operating state.

[0014] In one embodiment of the present invention, the sensor assembly optionally includes a smoke sensor, a liquid sensor, and / or a temperature and humidity sensor. The smoke sensor can detect smoke concentration; and / or the liquid sensor can detect water accumulation; and / or the temperature and humidity sensor can detect temperature and humidity.

[0015] In one embodiment of the present invention, optionally, a smoke sensor is located at a first position outside the photovoltaic energy storage device; and / or a liquid sensor is located at the bottom of the photovoltaic energy storage device; and / or a temperature and humidity sensor is located at a second position outside the photovoltaic energy storage device.

[0016] In one technical solution of the present invention, optionally, when the temperature is greater than a first threshold, the smoke concentration is less than a second threshold, and the water accumulation is not present, the photovoltaic energy storage device reduces its charging power; and / or when the humidity is greater than or equal to a third threshold, and the water accumulation is detected, the photovoltaic energy storage device actively disconnects from the grid, stops charging, and stops outputting from the grid port; and / or when the humidity is less than the third threshold, and the water accumulation is detected, the photovoltaic energy storage device actively disconnects from the grid, stops charging, and stops outputting from the grid port; and / or when the temperature is greater than a fourth threshold, the smoke concentration is greater than or equal to the second threshold, and the water accumulation is not present, the photovoltaic energy storage device actively disconnects from the grid, stops charging, and stops outputting from the grid port.

[0017] In one technical solution of the present invention, optionally, the photovoltaic energy storage device is connected to the client for communication, and the photovoltaic energy storage device is used to send early warning information to the client, including: rain, fire, water accumulation or high temperature.

[0018] In one technical solution of the present invention, optionally, the smoke sensor will issue an audible alarm when the smoke sensor detects that the smoke concentration is greater than or equal to a second threshold; and / or the liquid sensor will issue an audible alarm when the liquid sensor detects that there is water accumulation around the photovoltaic energy storage device.

[0019] In one embodiment of the present invention, the photovoltaic energy storage device is optionally wirelessly connected to the sensor assembly.

[0020] A second aspect of the present invention provides an early warning method for a photovoltaic energy storage device. The photovoltaic energy storage device is installed on a balcony of a building, and a sensor assembly is installed inside the balcony. A photovoltaic component is installed on the roof of the building. The photovoltaic energy storage device is electrically connected to the photovoltaic component. The photovoltaic energy storage device has a grid-connected port and an off-grid port. The grid-connected port is used to connect to the household power grid, and the off-grid port is used to connect to a first load. The early warning method includes: establishing a wireless communication connection between the photovoltaic energy storage device and the sensor assembly; receiving environmental parameters from the sensor assembly, including temperature, humidity, smoke concentration, and / or water accumulation status; generating an early warning mechanism based on the environmental parameters; issuing an early warning message based on the early warning mechanism; and adjusting the charging power of the photovoltaic energy storage device, stopping charging from the photovoltaic component, stopping the output of electrical energy through the off-grid port, and / or disconnecting the electrical connection between the grid-connected port and the household power grid.

[0021] In one technical solution of the present invention, optionally, the client is communicatively connected to the photovoltaic energy storage device and the sensor component respectively. After the photovoltaic energy storage device issues an early warning message according to the early warning mechanism and adjusts the working state of the photovoltaic energy storage device, the early warning method further includes: the photovoltaic energy storage device sending an early warning message to the client.

[0022] In one embodiment of the present invention, the photovoltaic energy storage device is optionally wirelessly connected to the sensor assembly.

[0023] A third aspect of the present invention provides a control device for a photovoltaic energy storage system, including a memory and a processor. The memory stores programs or instructions executable on the processor. When the program or instructions are executed by the processor, they implement the steps of the early warning method in any of the above-described technical solutions. Therefore, the control device for the photovoltaic energy storage system possesses all the beneficial effects of the early warning method, which will not be elaborated further here.

[0024] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 A schematic diagram of a photovoltaic energy storage system according to an embodiment of the present invention is shown;

[0027] Figure 2 A schematic diagram illustrating communication between a photovoltaic energy storage device and a client according to an embodiment of the present invention is shown;

[0028] Figure 3 A flowchart illustrating the operation of a photovoltaic energy storage system according to an embodiment of the present invention is shown;

[0029] Figure 4 A flowchart of an early warning method according to an embodiment of the present invention is shown;

[0030] Figure 5 A schematic block diagram of a control device for a photovoltaic energy storage system according to an embodiment of the present invention is shown.

[0031] In the attached figures, the following labels are used:

[0032] 100 Photovoltaic energy storage system, 102 Sensor assembly, 104 Smoke sensor, 106 Liquid sensor, 108 Temperature and humidity sensor, 110 Photovoltaic energy storage device, 112 Battery assembly, 114 Inverter, 116 Input port, 118 Grid connection port, 120 Off-grid port, 122 Communication assembly, 124 Processing assembly, 126 First position, 128 Second position, 130 Photovoltaic component, 132 Electricity meter, 134 Home grid, 136 First load, 138 Second load, 400 Control device for photovoltaic energy storage system, 410 Memory, 420 Processor, 500 Building, 510 Balcony, 520 Roof, 600 Client. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0035] The following reference Figures 1 to 5 A photovoltaic energy storage system 100 and its control device and early warning method are described according to some embodiments of the present invention.

[0036] like Figure 1As shown, in one embodiment of the present invention, a photovoltaic energy storage system 100 is provided. The photovoltaic energy storage system 100 is installed in a building 500. The building 500 has a balcony 510 and a roof 520. The roof 520 is provided with a photovoltaic component 130. The photovoltaic energy storage system 100 includes a sensor assembly 102 and a photovoltaic energy storage device 110. Sensor assembly 102 is located inside balcony 510. Sensor assembly 102 can detect environmental parameters, including temperature, humidity, smoke concentration and / or water accumulation. Photovoltaic energy storage device 110 is installed on balcony 510 and electrically connected to photovoltaic component 130. Photovoltaic energy storage device 110 is communicatively connected to sensor assembly 102. Photovoltaic energy storage device 110 has a grid-connected port 118 and an off-grid port 120. Grid-connected port 118 is used to connect to the household power grid 134, and off-grid port 120 is used to connect to a first load 136. Photovoltaic energy storage device 110 is used to receive environmental parameters from sensor assembly 102, generate an early warning mechanism based on the environmental parameters, so that photovoltaic energy storage device 110 issues early warning information according to the early warning mechanism, and adjusts the charging power of photovoltaic energy storage device 110, stops charging from photovoltaic component 130, stops outputting electrical energy through off-grid port 120 and / or disconnects the electrical connection between grid-connected port 118 and household power grid 134.

[0037] In this embodiment, a photovoltaic energy storage system 100 is installed in a building 500, which has a balcony 510 and a roof 520. A photovoltaic component 130 is installed on the roof 520 to facilitate its installation and fixation. The photovoltaic component 130 can receive sunlight at the location on the roof 520 to generate electricity. The photovoltaic energy storage system 100 includes a sensor assembly 102 and a photovoltaic energy storage device 110. The photovoltaic energy storage system 100 can receive and store the electricity from the photovoltaic component 130, and transmit the stored electricity to the household power grid or directly plug it into the first load 136 of the photovoltaic energy storage device 110 for use.

[0038] Sensor assembly 102 is located inside balcony 510. Sensor assembly 102 can detect environmental parameters, including temperature, humidity, smoke concentration, and / or water accumulation, thereby enabling sensor assembly 102 to monitor the environment surrounding photovoltaic energy storage device 110, i.e., to detect the environmental parameters of balcony 510. By detecting temperature, the sensor assembly 102 can determine the temperature conditions around photovoltaic energy storage device 110. By detecting humidity, the sensor assembly 102 can determine the humidity conditions around photovoltaic energy storage device 110. By detecting smoke concentration, the sensor assembly 102 can determine the smoke conditions around photovoltaic energy storage device 110. By detecting water accumulation, the sensor assembly 102 can determine the water accumulation conditions around photovoltaic energy storage device 110.

[0039] A photovoltaic energy storage device 110 is installed on the balcony 510 and electrically connected to the photovoltaic component 130 to facilitate the arrangement of the photovoltaic energy storage device 110 so that it can receive electrical energy generated by the photovoltaic component 130 at the roof 520. The photovoltaic energy storage device 110 is communicatively connected to the sensor assembly 102. The photovoltaic energy storage device 110 has a grid-connected port 118 and an off-grid port 120. The grid-connected port 118 is used to connect to the household power grid 134, and the off-grid port 120 is used to connect to the first load 136, enabling power transmission between the photovoltaic energy storage device 110 and the household power grid 134, and allowing the photovoltaic energy storage device 110 to provide power to the external first load 136. The photovoltaic energy storage device 110 is used to receive environmental parameters from the sensor assembly 102, enabling the photovoltaic energy storage device 110 and the sensor assembly 102 to establish a connection relationship and transmit data.

[0040] The photovoltaic energy storage device 110 generates an early warning mechanism based on environmental parameters. This mechanism enables the device to issue early warning information and adjust its charging power, stop charging from the photovoltaic component 130, stop outputting power through the off-grid port 120, and / or disconnect the electrical connection between the grid-connected port 118 and the household power grid 134. This regulates the operating state of the photovoltaic energy storage device 110. Specifically, the device can analyze the detection parameters from the sensor component 102 to generate an early warning mechanism, and then adjust its operating state accordingly. Disconnecting the electrical connection between the grid-connected port 118 and the household power grid 134 is an example of this mechanism.

[0041] This application establishes a communication connection between the photovoltaic energy storage device 110 and the sensor assembly 102. The photovoltaic energy storage device 110 receives environmental parameters from the sensor assembly 102 and generates an early warning mechanism based on these parameters. This mechanism enables the photovoltaic energy storage device 110 to issue early warning information and adjust its operating state. This achieves communication between the photovoltaic energy storage device 110 and the sensor assembly 102, allowing them to work in tandem. The photovoltaic energy storage device 110 can adjust its operating state according to the environmental parameters detected by the sensor assembly 102, ensuring that it operates safely and stably in the event of abnormal environmental parameters.

[0042] This embodiment provides a photovoltaic energy storage system 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0043] like Figure 1As shown, the photovoltaic energy storage device 110 includes a battery module 112, an inverter 114, a communication component 122, and a processing component 124. The inverter 114 is connected to the battery module 112 and includes an input port 116, a grid-connected port 118, and an off-grid port 120. The input port 116 is used to connect to the photovoltaic component 130. The communication component 122 is communicatively connected to the sensor component 102. The processing component 124 generates an early warning mechanism based on environmental parameters, so that the photovoltaic energy storage device 110 issues early warning information according to the early warning mechanism and adjusts the operating state of the photovoltaic energy storage device 110.

[0044] In this embodiment, the photovoltaic energy storage device 110 includes a battery module 112, an inverter 114, a communication module 122, and a processing module 124.

[0045] Inverter 114 is connected to battery module 112. Inverter 114 includes an input port 116, a grid-connected port 118, and an off-grid port 120. Input port 116 is used to connect to photovoltaic module 130. By configuring inverter 114, the electrical energy generated by photovoltaic module 130 can be stored in battery module 112 through inverter 114. Grid-connected port 118 is used to connect to home grid 134, so that battery module 112 can transmit power to home grid for use through grid-connected port 118. Off-grid port 120 is used to connect to first load 136, so that battery module 112 can transmit power to first load 136 connected to photovoltaic energy storage device 110 for use through off-grid port 120.

[0046] A second load 138 is connected to the home power grid, enabling the photovoltaic energy storage device 110 to transmit power to the home power grid for use by the second load 138.

[0047] A meter 132 is connected to the household power grid to measure electrical energy.

[0048] The communication component 122 and the sensor component 102 are connected in communication, so that the photovoltaic energy storage device 110 can establish a connection with the sensor component 102 through the communication component 122, so that the photovoltaic energy storage device 110 and the sensor component 102 can transmit data and work together.

[0049] The processing component 124 generates an early warning mechanism based on environmental parameters, enabling the photovoltaic energy storage device 110 to issue early warning information and adjust its operating state. After the sensor component 102 sends environmental parameters to the photovoltaic energy storage device 110, the processing component 124 can analyze the environmental parameters in real time to determine whether the environment around the photovoltaic energy storage device 110 is abnormal. Upon detecting abnormal environmental parameters, it can generate an early warning mechanism to issue an early warning and adjust the operating state of the photovoltaic energy storage device 110 to ensure its safety and prevent danger.

[0050] Specifically, the photovoltaic energy storage device 110 is an integrated photovoltaic energy storage unit, the communication component 122 is a gateway module, and the processing component 124 is a system decision module.

[0051] The gateway module integrates a Wi-Fi (Wireless Fidelity) communication module that supports both STA (Station) and AP (Access Point) modes. The STA is used to interact with the cloud platform for network data, and the AP is used to communicate with the sensor component 102 to collect environmental data around the photovoltaic energy storage device 110.

[0052] Inverter 114 is responsible for the energy conversion of the photovoltaic energy storage unit. It is used to store photovoltaic energy in the battery module 112, convert the DC output of the photovoltaic energy storage unit into AC output for household use, or convert the AC power of the household into DC power for battery charging.

[0053] The system decision-making module executes early warning strategies based on the currently collected environmental and electricity consumption data.

[0054] This embodiment provides a photovoltaic energy storage system 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0055] like Figure 1 As shown, the sensor assembly 102 includes a smoke sensor 104, a liquid sensor 106, and / or a temperature and humidity sensor 108. The smoke sensor 104 can detect smoke concentration; and / or the liquid sensor 106 can detect water accumulation; and / or the temperature and humidity sensor 108 can detect temperature and humidity.

[0056] In this embodiment, the sensor assembly 102 includes a smoke sensor 104, a liquid sensor 106, and / or a temperature and humidity sensor 108. By setting multiple sensors, multiple different environmental parameters can be detected, so as to monitor the environment around the photovoltaic energy storage device 110 from multiple dimensions and improve the accuracy of the judgment of the environment around the photovoltaic energy storage device 110.

[0057] The smoke sensor 104 can detect smoke concentration. It collects the smoke concentration in the current environment in real time and can connect to the photovoltaic energy storage device 110 via Wi-Fi to actively report its own data to the photovoltaic energy storage device 110. When the smoke concentration exceeds the standard, it actively reports alarm information and the smoke sensor 104 sounds an alarm to remind the user that the smoke exceeds the standard, so that the user can take appropriate action.

[0058] The liquid sensor 106 can detect water accumulation. It collects real-time data on whether there is water immersion in the environment, specifically the presence of water near the photovoltaic energy storage device 110. When water accumulates near the device, the liquid sensor 106 is triggered. Therefore, the liquid sensor 106 determines the presence of water near the photovoltaic energy storage device by whether it is triggered. The liquid sensor 106 can connect to the photovoltaic energy storage device 110 via Wi-Fi and actively report its own data to the device. When monitoring for water immersion, it actively reports alarm information and issues an audible alarm.

[0059] The temperature and humidity sensor 108 can detect temperature and humidity, collect the current temperature and humidity conditions in real time, and can connect with the photovoltaic energy storage device 110 via Wi-Fi to actively report its own data to the photovoltaic energy storage device 110.

[0060] By setting up multiple different sensors, the photovoltaic energy storage device 110 can monitor the surrounding environment in real time, thereby determining whether the surrounding environment is in a state of high temperature, rain, water accumulation or fire. In turn, the photovoltaic energy storage device 110 issues early warning information according to the early warning mechanism and adjusts the working state of the photovoltaic energy storage device 110.

[0061] This embodiment provides a photovoltaic energy storage system 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0062] like Figure 1 As shown, the smoke sensor 104 is located at a first position 126 outside the photovoltaic energy storage device 110; and / or the liquid sensor 106 is located at the bottom of the photovoltaic energy storage device 110; and / or the temperature and humidity sensor 108 is located at a second position 128 outside the photovoltaic energy storage device 110.

[0063] In this embodiment, the smoke sensor 104 is located at a first position 126 outside the photovoltaic energy storage device 110 to realize the arrangement of the smoke sensor 104. By arranging the smoke sensor 104 at the first position 126, the smoke sensor 104 is located close to the photovoltaic energy storage device 110, so as to facilitate the detection of smoke near the photovoltaic energy storage device 110.

[0064] A liquid sensor 106 is disposed at the bottom of the photovoltaic energy storage device 110 to facilitate the detection of water accumulation below the photovoltaic energy storage device 110.

[0065] The temperature and humidity sensor 108 is set at a second position 128 outside the photovoltaic energy storage device 110 to realize the arrangement of the temperature and humidity sensor 108. By arranging the temperature and humidity sensor 108 at the second position 128, the temperature and humidity sensor 108 is located close to the photovoltaic energy storage device 110, so as to facilitate the detection of humidity and temperature conditions near the photovoltaic energy storage device 110.

[0066] Specifically, the smoke sensor 104 is a smoke alarm, installed within 2 meters directly above the photovoltaic energy storage device 110 and within 1 meter to the left and right.

[0067] The liquid sensor 106 is a water immersion sensor, which is installed at the bottom of the photovoltaic energy storage device 110 or on the flat surface where the photovoltaic energy storage device 110 is placed.

[0068] Temperature and humidity sensor 108 is installed within 2 meters of photovoltaic energy storage device 110.

[0069] This embodiment provides a photovoltaic energy storage system 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0070] When the temperature is greater than the first threshold, the smoke concentration is less than the second threshold, and there is no water accumulation, the photovoltaic energy storage device 110 reduces the charging power; and / or when the humidity is greater than or equal to the third threshold, and water accumulation is detected, the photovoltaic energy storage device 110 actively disconnects from the grid, stops charging, and stops outputting from the off-grid port 120; and / or when the humidity is less than the third threshold, and water accumulation is detected, the photovoltaic energy storage device 110 actively disconnects from the grid, stops charging, and stops outputting from the off-grid port 120; and / or when the temperature is greater than the fourth threshold, the smoke concentration is greater than or equal to the second threshold, and there is no water accumulation, the photovoltaic energy storage device 110 actively disconnects from the grid, stops charging, and stops outputting from the off-grid port 120.

[0071] In this embodiment, when the temperature is greater than a first threshold, the smoke concentration is less than a second threshold, and there is no water accumulation, the photovoltaic energy storage device 110 reduces its charging power. When the ambient temperature is high, the smoke concentration is low, and there is no water accumulation, it is considered to be in a high-temperature state, and the photovoltaic energy storage device 110 can actively cool down to prevent thermal runaway of the battery module 112 of the photovoltaic energy storage device 110.

[0072] When the humidity is greater than or equal to the third threshold and water accumulation is detected (i.e., the humidity near balcony 510 is high and water accumulation exists), the surrounding environmental conditions are considered to be rainy. At this time, the photovoltaic energy storage device 110 actively disconnects from the grid, stops charging, and stops outputting from the grid port 120 to prevent short circuits and potential hazards to the photovoltaic energy storage device 110.

[0073] If the humidity is below the third threshold and water accumulation is detected (i.e., the humidity near balcony 510 is low and water accumulation exists), the surrounding environment is considered to be in a water-accumulation state. At this time, the photovoltaic energy storage device 110 actively disconnects from the grid, stops charging, and stops outputting from the grid port 120 to prevent short circuits and potential hazards to the photovoltaic energy storage device 110.

[0074] When the temperature is greater than the fourth threshold, the smoke concentration is greater than or equal to the second threshold, and there is no water accumulation, that is, when the temperature near the balcony 510 is very high, the smoke concentration is very high, and there is no water accumulation, it is considered to be in a fire state. At this time, the photovoltaic energy storage device 110 will actively disconnect from the grid, stop charging, and stop the output of the off-grid port 120 to avoid the photovoltaic energy storage device 110 from short-circuiting and causing danger.

[0075] Specifically, the first threshold is 35°C, the second threshold is 2%obs / m (shading rate per meter), the third threshold is 80%RH (relative humidity), and the fourth threshold is 50°C.

[0076] This embodiment provides a photovoltaic energy storage system 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0077] like Figure 2 As shown, the photovoltaic energy storage device 110 is connected to the client 600 for communication. The photovoltaic energy storage device 110 is used to send early warning information to the client 600. The early warning information includes: rain, fire, water accumulation or high temperature.

[0078] In this embodiment, the client 600 is a client 600 that users frequently use. The photovoltaic energy storage device 110 is connected to the client 600 for communication. The photovoltaic energy storage device 110 is used to send early warning information to the client 600, so that the photovoltaic energy storage device 110 can send early warning information to the user to alert the user. The early warning information includes: rain, fire, water accumulation or high temperature, so that the user can know the corresponding early warning information in time and take appropriate action in time.

[0079] This embodiment provides a photovoltaic energy storage system 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0080] When the smoke sensor 104 detects that the smoke concentration is greater than or equal to the second threshold, the smoke sensor 104 will issue an audible alarm; and / or when the liquid sensor 106 detects that there is water accumulation around the photovoltaic energy storage device 110, the liquid sensor 106 will issue an audible alarm.

[0081] In this embodiment, when the smoke sensor 104 detects that the smoke concentration is greater than or equal to the second threshold, the smoke sensor 104 will sound an alarm. When the smoke concentration exceeds the standard, the smoke sensor 104 will actively report the alarm information and sound an alarm to remind the user that the smoke concentration exceeds the standard, so that the user can take appropriate action.

[0082] When the liquid sensor 106 detects water accumulation around the photovoltaic energy storage device 110, the liquid sensor 106 will sound an alarm to remind the user that there is water accumulation or a large amount of water accumulation near the photovoltaic energy storage device 110, so that the user can take appropriate measures.

[0083] Specifically, the photovoltaic energy storage device 110 and the sensor assembly 102 are both communicatively connected to the client 600. The client 600 has an APP (Application) that can provide early warnings. The early warning principle of the photovoltaic energy storage device 110 is shown in Table 1.

[0084] Table 1 Early Warning Principle

[0085] In Table 1, the water accumulation status is indicated by whether water immersion is triggered. Whether water immersion is triggered is whether the water immersion sensor is triggered. Water immersion trigger means that the water immersion sensor has detected water accumulation, and water immersion not triggered means that the water immersion sensor has not detected water accumulation.

[0086] When the temperature is greater than 35°C, the smoke concentration is less than 2%obs / m (shading rate per meter), and water immersion is not triggered, the photovoltaic energy storage device 110 can determine that the surrounding environmental conditions are high temperature based on these environmental parameters. At this time, the early warning mechanism is: the charging power is reduced by 50%, and the APP issues an early warning of high temperature, so that the photovoltaic energy storage device 110 can actively cool down when it is in a high temperature state, so as to avoid thermal runaway of the battery module 112 of the photovoltaic energy storage device 110.

[0087] When the humidity is greater than or equal to 80%RH (relative humidity) and water immersion is triggered, the photovoltaic energy storage device 110 can determine that the surrounding environmental conditions are rainy based on these environmental parameters. At this time, the early warning mechanism is as follows: the photovoltaic energy storage device 110 actively disconnects from the grid, stops charging, and stops the output of the off-grid port 120; the APP issues a rainy warning. The water immersion sensor can provide an audible alarm when triggered.

[0088] When the humidity is less than 80%RH (relative humidity) and water immersion is triggered, the photovoltaic energy storage device 110 can determine that the surrounding environment is flooded based on these environmental parameters. In this case, the warning mechanism is as follows: the photovoltaic energy storage device 110 actively disconnects from the grid, stops charging, and stops outputting from the grid port 120; the APP issues a water immersion warning. The water immersion sensor can issue an audible alarm when triggered. Compared to the method where "the water immersion alarm only issues an audible and visual alarm and does not integrate a power-off action," this application links the water immersion sensor with the photovoltaic energy storage device 110. In the event of an abnormality, the photovoltaic energy storage device 110 can be powered off, preventing the photovoltaic energy storage device 110 from operating under power after water immersion and avoiding short circuits.

[0089] When the temperature exceeds 50℃ (degrees Celsius), the smoke concentration is greater than or equal to 2%obs / m (shading rate per meter), and water immersion has not been triggered, the photovoltaic energy storage device 110 can determine that the surrounding environmental conditions constitute a fire based on these environmental parameters. In this case, the early warning mechanism is as follows: the photovoltaic energy storage device 110 actively disconnects from the grid, stops charging, and stops output from the grid port 120; the APP issues a fire warning. The smoke sensor 104 can trigger an audible alarm when activated. By linking the smoke sensor 104 with the photovoltaic energy storage device 110, the photovoltaic energy storage device 110 can promptly cut off power in case of an anomaly. Compared to the smoke sensor 104 operating independently, this avoids false alarms easily triggered by cooking fumes on the balcony 510.

[0090] Specifically, when acquiring smoke concentration data from the smoke sensor 104, an additional temperature judgment condition is added; this can effectively filter out false fire alarm triggering conditions and ensure the safe and stable operation of the photovoltaic energy storage device 110.

[0091] This embodiment provides a photovoltaic energy storage system 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0092] like Figure 1 As shown, the photovoltaic energy storage device 110 is wirelessly connected to the sensor assembly 102.

[0093] In this technical solution, the photovoltaic energy storage device 110 is wirelessly connected to the sensor component 102. The communication component 122 of the photovoltaic energy storage device 110 integrates a Wi-Fi communication module that supports both STA and AP modes. The STA mode is used for network data interaction with the cloud platform. The AP mode is used to communicate with the sensor component 102 and collect environmental data. Thus, even when the home router is unavailable, the sensor component 102 can still maintain communication with the photovoltaic energy storage device 110 through the integrated AP and monitor the surrounding environment of the integrated device in real time.

[0094] Specifically, the photovoltaic energy storage device 110 and the sensor component 102 communicate via Wi-Fi. The communication protocols between the photovoltaic energy storage device 110 and the sensor component 102 are mDNS (Multicast DNS) and HTTP (Hypertext Transfer Protocol). The communication principle between the photovoltaic energy storage device 110 and the sensor component 102 is as follows: The photovoltaic energy storage device 110 has an internal communication module that can support simultaneous operation in both STA and AP modes. The STA connects to the home router to communicate with the cloud platform and the APP, while the AP connects to the sensor component 102 to obtain sensor data, i.e., to obtain the environmental parameters detected by the sensor component 102. Even if the home router is unavailable, it will not affect the local communication between the photovoltaic energy storage device 110 and the sensor component 102.

[0095] The smoke detector, water immersion detector, and temperature and humidity sensor 108 all support Wi-Fi communication and operate in STA mode. These sensors are manually configured to connect to the energy storage unit's access point (AP). Once connected, all sensor components 102 and the photovoltaic energy storage device 110 will communicate on the same local area network (LAN). Within the same LAN, the photovoltaic energy storage device 110 can scan for devices on the LAN using the mDNS protocol and obtain the IP (Internet Protocol) address of the sensor component 102. The photovoltaic energy storage device 110 can then use this IP address to retrieve data from the sensor component 102 via HTTP to obtain the current operating environment parameters, i.e., environmental parameters.

[0096] The communication module of the photovoltaic energy storage device 110 operates in STA and AP coexistence mode. When the home router is unavailable, the sensor component 102 can still maintain communication and monitor the environment around the photovoltaic energy storage device 110 in real time by connecting to the integrated AP.

[0097] The photovoltaic energy storage device 110 can be quickly connected to the sensor assembly 102 via Wi-Fi connection; this can be achieved quickly without modifying the hardware and structure of the photovoltaic energy storage device 110 (which would affect the airtightness and waterproofness level), thus avoiding the airtightness and waterproofness level of the photovoltaic energy storage device 110.

[0098] Specifically, such as Figure 3 As shown, the working principle of the photovoltaic energy storage system 100 of this application is as follows:

[0099] 202. Use the app to configure the sensor components to connect to the AP of the photovoltaic energy storage device;

[0100] 204. The photovoltaic energy storage device scans the sensor components within the AP's local area network to bring the device online.

[0101] 206. Real-time acquisition of environmental data from sensor components;

[0102] 208. Analyze the response information from the sensor components;

[0103] 210. Based on the principle of real-time early warning, execute the relevant early warning mechanism.

[0104] In some embodiments of the present invention, an early warning method is provided. This method is used with a photovoltaic energy storage device. The photovoltaic energy storage device is installed on a balcony of a building, and a sensor assembly is installed inside the balcony. A photovoltaic component is installed on the roof of the building. The photovoltaic energy storage device is electrically connected to the photovoltaic component. The photovoltaic energy storage device has a grid-connected port and an off-grid port. The grid-connected port is used to connect to the household power grid, and the off-grid port is used to connect to a first load, such as... Figure 4 As shown, the early warning methods include:

[0105] 302. The photovoltaic energy storage device establishes a wireless communication connection with the sensor components;

[0106] 304, Receives environmental parameters from the sensor assembly, including temperature, humidity, smoke concentration and / or water accumulation status;

[0107] 306. An early warning mechanism is generated based on environmental parameters;

[0108] 308. Issue warning information according to the early warning mechanism, and adjust the charging power of photovoltaic energy storage equipment, stop charging from photovoltaic components, stop outputting electrical energy through off-grid port and / or disconnect the electrical connection between grid port and household power grid.

[0109] In this embodiment, the photovoltaic energy storage system is installed in a building with balconies and a roof. Photovoltaic components are installed and fixed on the roof, allowing them to receive sunlight and generate electricity. Sensor components are located inside the balcony and can detect environmental parameters, including temperature, humidity, smoke concentration, and / or water accumulation. This allows the sensor components to monitor the environment surrounding the photovoltaic energy storage device, i.e., to detect the environmental parameters of the balcony. The photovoltaic energy storage device has a grid-connected port and an off-grid port. The grid-connected port is used to connect to the household power grid, and the off-grid port is used to connect to a first load, enabling power transmission between the photovoltaic energy storage device and the household power grid, allowing the photovoltaic energy storage device to provide power to the external first load. The photovoltaic energy storage device receives environmental parameters from the sensor components, establishing a connection between the photovoltaic energy storage device and the sensor components for data transmission.

[0110] The photovoltaic (PV) energy storage device generates an early warning mechanism based on environmental parameters. This mechanism enables the PV energy storage device to issue warning messages and adjust its charging power, stop charging from PV components, stop outputting power through the off-grid port, and / or disconnect the grid connection from the home power grid. This regulates the operating state of the PV energy storage device. In other words, the PV energy storage device can analyze the detection parameters from its sensor components to generate an early warning mechanism, and then adjust its operating state accordingly. Adjusting the operating state of the PV energy storage device includes reducing charging power and / or actively disconnecting the PV energy storage device from the grid, stopping charging, and stopping off-grid output.

[0111] This application enables a photovoltaic energy storage device to receive environmental parameters from sensor components and generate an early warning mechanism based on these parameters. The photovoltaic energy storage device then issues an early warning and adjusts its operating state accordingly. This achieves communication between the photovoltaic energy storage device and the sensor components, allowing them to work in tandem. The photovoltaic energy storage device can adjust its operating state based on the environmental parameters detected by the sensor components, ensuring that it operates safely and stably in the event of abnormal environmental parameters.

[0112] In one embodiment of the present invention, the photovoltaic energy storage device may optionally send early warning information to the client.

[0113] In this embodiment, after determining that there is an environmental anomaly based on the environmental data detected by the sensor components, the photovoltaic energy storage device sends an early warning message to the client, thereby conveying the information about the environmental anomaly to the user so that the user can be informed of the abnormal environmental situation around the photovoltaic energy storage device in a timely manner and can deal with the abnormal situation in a timely manner.

[0114] The photovoltaic energy storage device and sensor components are wirelessly connected. The communication component of the photovoltaic energy storage device integrates a Wi-Fi communication module that supports both STA and AP modes. STA mode is used for network data interaction with the cloud platform. AP mode is used to communicate with the sensor components and collect environmental data. Therefore, even when the home router is unavailable, the sensor components can still maintain communication with the photovoltaic energy storage device by connecting to the integrated AP, and monitor the surrounding environment of the integrated device in real time.

[0115] like Figure 5As shown, a third aspect of the present invention provides a control device 400 for a photovoltaic energy storage system, including a memory 410 and a processor 420. The memory 410 stores programs or instructions that can be executed on the processor 420. When the program or instructions are executed by the processor 420, they implement the steps of the early warning method in any of the above embodiments. Therefore, the control device 400 for the photovoltaic energy storage system possesses all the beneficial effects of the early warning method, which will not be elaborated further here.

[0116] A fourth aspect of the present invention provides a readable storage medium having a program or instructions stored thereon, which, when executed by a processor, implement the steps of the warning method in any of the above embodiments. Therefore, the readable storage medium possesses all the beneficial effects of the warning method, which will not be elaborated further here.

[0117] In the claims, description, and accompanying drawings of this invention, the term "plural" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and simplifying the descriptive process, and are not intended to indicate or imply that the device or element referred to must have the described specific orientation, or be constructed and operated in a specific orientation. Therefore, these descriptions should not be construed as limiting the invention. The terms "connected," "installed," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects or an indirect connection between multiple objects through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this invention can be understood based on the specific circumstances described above.

[0118] In the claims, description, and accompanying drawings of this invention, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In the claims, description, and accompanying drawings of this invention, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0119] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A photovoltaic energy storage system, characterized in that, The photovoltaic energy storage system is installed in a building, which has balconies and a roof. Photovoltaic components are installed on the roof. The photovoltaic energy storage system includes: A sensor assembly located inside the balcony, the sensor assembly being capable of detecting environmental parameters, including temperature, humidity, smoke concentration, and / or water accumulation. A photovoltaic energy storage device is installed on the balcony and electrically connected to the photovoltaic components. The photovoltaic energy storage device is communicatively connected to the sensor assembly. The photovoltaic energy storage device has a grid-connected port and an off-grid port. The grid-connected port is used to connect to the household power grid, and the off-grid port is used to connect to a first load. The photovoltaic energy storage device is used to receive environmental parameters from the sensor assembly, generate an early warning mechanism based on the environmental parameters, and issue early warning information according to the early warning mechanism. It also adjusts the charging power of the photovoltaic energy storage device, stops charging from the photovoltaic components, stops outputting electrical energy through the off-grid port, and / or disconnects the electrical connection between the grid-connected port and the household power grid.

2. The photovoltaic energy storage system according to claim 1, characterized in that, The photovoltaic energy storage device includes: Battery components; An inverter connected to the battery module, the inverter including an input port, a grid-connected port and an off-grid port, the input port being used to connect to photovoltaic components; A communication component, wherein the communication component is communicatively connected to the sensor component; A processing component generates an early warning mechanism based on the environmental parameters, so that the photovoltaic energy storage device issues an early warning message according to the early warning mechanism and adjusts the working state of the photovoltaic energy storage device.

3. The photovoltaic energy storage system according to claim 1, characterized in that, The sensor assembly includes: A smoke sensor capable of detecting the smoke concentration; and / or A liquid sensor capable of detecting the state of water accumulation; and / or A temperature and humidity sensor, which can detect temperature and humidity.

4. The photovoltaic energy storage system according to claim 3, characterized in that, The smoke sensor is located at a first position outside the photovoltaic energy storage device; and / or The liquid sensor is disposed at the bottom of the photovoltaic energy storage device; and / or The temperature and humidity sensor is located at a second position outside the photovoltaic energy storage device.

5. The photovoltaic energy storage system according to claim 3, characterized in that, When the temperature is greater than a first threshold, the smoke concentration is less than a second threshold, and the water accumulation is not present, the photovoltaic energy storage device reduces its charging power. and / or When the humidity is greater than or equal to the third threshold and the water accumulation state is detected as water accumulation, the photovoltaic energy storage device actively disconnects from the grid, stops charging, and stops outputting from the grid port. and / or When the humidity is less than the third threshold and the water accumulation status is detected as water accumulation, the photovoltaic energy storage device actively disconnects from the grid, stops charging, and stops outputting from the grid port. and / or When the temperature is greater than the fourth threshold, the smoke concentration is greater than or equal to the second threshold, and the water accumulation is zero, the photovoltaic energy storage device actively disconnects from the grid, stops charging, and stops outputting from the grid port.

6. The photovoltaic energy storage system according to claim 5, characterized in that, The photovoltaic energy storage device is connected to the client for communication. The photovoltaic energy storage device is used to send the early warning information to the client. The early warning information includes: rain, fire, water accumulation, or high temperature.

7. The photovoltaic energy storage system according to claim 5, characterized in that, When the smoke sensor detects that the smoke concentration is greater than or equal to a second threshold, the smoke sensor issues an audible alarm; and / or When the liquid sensor detects water accumulation around the photovoltaic energy storage device, the liquid sensor will issue an audible alarm.

8. The photovoltaic energy storage system according to any one of claims 1 to 7, characterized in that, The photovoltaic energy storage device is wirelessly connected to the sensor assembly.

9. An early warning method, characterized in that, A photovoltaic energy storage device is used, wherein the photovoltaic energy storage device is installed on a balcony of a building, a sensor assembly is installed inside the balcony, a photovoltaic component is installed on the roof of the building, the photovoltaic energy storage device is electrically connected to the photovoltaic component, the photovoltaic energy storage device has a grid-connected port and an off-grid port, the grid-connected port is used to connect to the household power grid, and the off-grid port is used to connect to a first load, the early warning method includes: The photovoltaic energy storage device establishes a wireless communication connection with the sensor assembly; Receive environmental parameters from the sensor assembly, including temperature, humidity, smoke concentration, and / or water accumulation status; A warning mechanism is generated based on the environmental parameters; According to the aforementioned early warning mechanism, an early warning message is issued, and the charging power of the photovoltaic energy storage device is adjusted, charging from the photovoltaic component is stopped, power output through the off-grid port is stopped, and / or the electrical connection between the grid-connected port and the household power grid is disconnected.

10. A control device for a photovoltaic energy storage system, characterized in that, It includes a memory and a processor, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the early warning method as described in claim 9.

Images