Remote communication system

Abstract

The invention provides a long-distance communication system, and the system comprises a long-distance communication LoRa gateway which comprises a long-distance wireless LoRa communication module, and the LoRa communication module is used for achieving the communication between the LoRa gateway and a LoRa node; the photovoltaic module is used for converting solar energy into electric energy; the energy storage battery is used for storing electric energy generated by the photovoltaic module; when the LoRa gateway needs to use electricity, the stored electric energy is released to supply power to the LoRa gateway; the energy storage battery comprises a battery cell and a heating film, the heating film wraps the battery cell, and the energy storage battery is further used for starting the heating film to heat the battery cell under the condition that the temperature of the battery cell is smaller than a preset temperature threshold value and the predicted electric energy generated by the photovoltaic module is larger than the electric energy consumed by the heating film during heating. The preset temperature threshold value is equal to the lowest temperature at which the energy storage battery can be normally charged. The system ensures that the heating film is started under the condition of sufficient sunlight, and the generated electric energy is greater than the consumed electric energy, so that positive benefits are generated.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a long-distance communication system. Background Art

[0002] Long Range Radio (LoRa) gateways are typically deployed in relatively desolate areas and therefore require power from photovoltaic panels and energy storage batteries. However, in the extreme cold of winter, the chemical reaction rate of the energy storage battery slows down, resulting in increased internal resistance, reduced charge and discharge efficiency, less power released by the battery, and reduced battery life. A heating film can raise the temperature of the energy storage battery to an appropriate range, allowing the chemical reactions within the battery to proceed normally. This improves the battery's charge and discharge efficiency at low temperatures, increases the battery's available capacity, extends the battery's service life, and ensures that the LoRa gateway can operate stably in cold environments. However, the heating film also consumes energy from the energy storage battery, and may even generate negative returns. Summary of the Invention

[0003] The present application provides a long-distance communication system that can ensure that the heating film is activated when there is sufficient sunlight, and the electricity generated is greater than the electricity consumed, thereby generating positive benefits.

[0004] In a first aspect, a long-distance communication system is provided, comprising:

[0005] Long-distance communication LoRa gateway, including a long-distance wireless LoRa communication module, the LoRa communication module is used to realize communication between the LoRa gateway and the LoRa node;

[0006] Photovoltaic panels, which convert solar energy into electricity;

[0007] An energy storage battery, used to store the electrical energy generated by the photovoltaic module; when the LoRa gateway needs electricity, the stored electrical energy is released to power the LoRa gateway;

[0008] The energy storage battery includes a battery cell and a heating film, and the heating film wraps the battery cell. The energy storage battery is also used to start the heating film to heat the battery cell when the temperature of the battery cell is lower than a preset temperature threshold and the expected electric energy generated by the photovoltaic module is greater than the electric energy consumed by the heating film during heating, wherein the preset temperature threshold is equal to the lowest temperature at which the energy storage battery can be charged normally.

[0009] In the above scheme, the heating film is activated to heat the battery cell only when the estimated electric energy generated by the photovoltaic module is greater than the electric energy consumed by the heating film during heating. Therefore, it can ensure that the profit is always positive, and avoid the situation where the heating film is activated in insufficient sunlight, and the electric energy generated is less than the electric energy consumed, resulting in negative profit, thereby ensuring the normal operation of the LoRa gateway.

[0010] In some possible designs, the energy storage battery is also used to stop the heating film from heating the battery cell when the temperature of the battery cell is lower than a preset temperature threshold, the LoRa gateway is in the on state, and the remaining power of the energy storage battery is lower than the shutdown power threshold, wherein the shutdown power threshold is equal to the minimum power required to maintain the normal operation of the LoRa gateway.

[0011] In the above solution, if the remaining power of the energy storage battery is too low (for example, less than or equal to the minimum power required for the normal operation of the LoRa gateway), the heating film is directly stopped to avoid the LoRa gateway stopping working due to the low power of the energy storage battery.

[0012] In some possible designs, the energy storage battery is further used to increase the power of the heating film to generate heat when the temperature of the battery cell is lower than a battery cell temperature threshold and the power of the photovoltaic assembly to generate electrical energy increases.

[0013] In the above solution, if the power of the photovoltaic module to generate electrical energy increases, the power of the heating film to generate heat can be increased, so that the heating film can reach the normal working temperature more quickly.

[0014] In some possible designs, when the temperature of the battery cell is lower than the battery cell temperature threshold, and the electric energy generated by the photovoltaic assembly is reduced or the remaining power of the energy storage battery is lower than the warning power threshold and higher than the shutdown power threshold, the power of the heating film to generate heat is reduced, wherein the warning power threshold is higher than the shutdown power threshold.

[0015] In the above scheme, if the power of the photovoltaic module to generate electricity is reduced, the power of the heating film to generate heat can be reduced, thereby avoiding excessive occupation of the energy storage battery's electricity, resulting in a rapid decrease in the electricity in the energy storage battery.

[0016] In some possible designs, the energy storage battery is also used to stop supplying power to the LoRa gateway when the power level is less than a safety power threshold, wherein the shutdown power threshold is greater than the safety power threshold.

[0017] In the above solution, when the power of the energy storage battery is too low, the power supply to the LoRa gateway can be stopped to avoid excessive discharge of the energy storage battery and damage to the energy storage battery.

[0018] In some possible designs, the energy storage battery is also used to start the heating film to heat the battery cell when the temperature of the battery cell is lower than a preset temperature threshold, the LoRa gateway is in an off state, and the estimated electric energy generated by the photovoltaic component minus the electric energy consumed by the heating film during heating is greater than a first electric energy threshold; and to start the heating film to heat the battery cell when the temperature of the battery cell is lower than a preset temperature threshold, the LoRa gateway is in an on state, and the estimated electric energy generated by the photovoltaic component minus the electric energy consumed by the heating film during heating is greater than a second electric energy threshold, wherein the first electric energy threshold is greater than zero, the second electric energy threshold is greater than zero, and the first electric energy threshold is greater than the second electric energy threshold.

[0019] In the above solution, the LoRa gateway may be shut down for long periods during certain periods. When the LoRa gateway is shut down for long periods, there is no urgent need for electricity. Therefore, charging can be performed only when sunlight conditions are better. This avoids the long-term consumption of electricity to heat the electric heating film while charging, which shortens the life of the energy storage battery. If the LoRa gateway is powered on and urgently needs electricity, the heating film can be heated only when there is a positive return, and then the energy storage battery can be charged.

[0020] In some possible designs, the energy storage battery is also used to receive weather data. When the temperature of the battery cell is lower than a preset temperature threshold and the weather data indicates that it is predicted to be sunny, the heating film is started to heat the battery cell; when the temperature of the battery cell is lower than the preset temperature threshold and the weather data indicates that it is predicted to be not sunny, the heating film is stopped to heat the battery cell.

[0021] In the above scheme, the weather conditions can be estimated based on weather data. If the weather conditions are sunny, the heating film will be activated to heat the battery cell, avoiding long-term charging while consuming electricity to heat the electric heating film, which will shorten the service life of the energy storage battery.

[0022] In some possible designs, the energy storage battery is further used to stop the heating film from heating the battery cell when the temperature of the battery cell is lower than a critical temperature threshold, wherein the critical temperature threshold is lower than the preset temperature threshold.

[0023] In some possible designs, the energy storage battery is further used to reduce charging power when the power of the photovoltaic assembly to generate electrical energy decreases.

[0024] In some possible designs, the photovoltaic component includes a first partition and a second partition, wherein the first partition has a first heating device and the second partition has a second heating device, the first heating device is used to heat the first partition, and the second heating device is used to heat the second partition.

[0025] In the above scheme, since the volume of photovoltaic modules is relatively large and the snow accumulation conditions in different areas are different, the photovoltaic modules can be divided into zones, and different zones have different heating devices. Different zones can be individually controlled to perform heating with different intensities and different time periods. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of a long-distance communication system involved in this application;

[0027] Figure 2 This is a schematic diagram of a charging strategy in a long-distance communication system provided by this application. DETAILED DESCRIPTION

[0028] See also Figure 1 , Figure 1 This is a schematic diagram of the structure of a long-distance communication system LoRa provided by this application. Figure 1 As shown, the LoRa system includes multiple LoRa nodes 110, a gateway 120, a photovoltaic module 130, and an energy storage battery 140.

[0029] LoRa nodes 110 are terminal devices in the LoRa system, responsible for collecting data or executing instructions. They connect to gateway 120 via LoRa wireless communication technology. LoRa nodes 110 are typically deployed at the edge of the network, interacting directly with the physical world. LoRa nodes 110 can include a LoRa transmission module, a processor, sensors / actuators, a power manager, and more.

[0030] The LoRa transmission module uses spread spectrum (CSS) technology to achieve long-distance, low-power data transmission. Because LoRa applications often operate in complex environments, spread spectrum modulation is used. This technology allows signals to communicate reliably at lower power levels, reducing transmitter power consumption and extending the battery life of end devices. Spread spectrum technology allows signals to travel longer distances at lower power levels, making it crucial for IoT applications that require long-distance communication and are power-conscious. Spread spectrum technology also allows signals to better penetrate buildings and obstacles, making them suitable for a variety of complex environments. Spread spectrum technology also creates a wider signal spectrum, providing strong resistance to narrowband interference and maintaining good communication quality in complex electromagnetic environments. Although a single signal occupies a relatively wide frequency spectrum, multiple signals with different spreading codes can coexist in the same frequency band, improving spectrum utilization to a certain extent. A LoRa transmission module typically consists of a transmitter and a receiver, enabling bidirectional communication. When sending data, the LoRa transmission module converts the digital signal into LoRa's unique linear frequency modulation spread spectrum signal and transmits it into the air through the antenna. When receiving data, the LoRa transmission module captures the wireless signal from the antenna, demodulates it into a digital signal, and transmits it to the processor of the LoRa node.

[0031] The processor can be a microprocessor or microcontroller unit (MCU), and can be a common LoRa transceiver chip. The controller executes control algorithms and logic, coordinating the operation of the power manager, sensors, storage module, and LoRa transmission module. Alternatively, the processor can include one or more processor cores. In one implementation, the processor can be a multi-core chip, that is, a chip containing multiple processing cores. In another implementation, the processor can include one or more processor cores. For example, it can be a chip with a single processing core.

[0032] The power manager is responsible for managing the power supply of the LoRa node 110, providing operating current for the processor, sensors, LoRa transmission module, etc. The power manager can convert the input power (such as batteries, mains power, etc.) to the voltage levels required by different modules. It can also manage the battery, for example, battery charging control, power monitoring, and low-battery protection. The power manager can monitor power parameters such as voltage, current, and power in real time to ensure power stability and safety. The power manager can also reduce system power consumption, extend battery life, or improve power efficiency through energy-saving modes and power management strategies. The power manager can also be a battery, either rechargeable or non-rechargeable.

[0033] Sensors are used to sense and measure various parameters of the physical world and convert them into electrical signals. For example, they can collect information about temperature, humidity, pressure, light, position, and speed. Therefore, sensors can be temperature sensors (such as thermistors and thermocouples), humidity sensors (capacitive and resistive), pressure sensors (strain gauge and piezoelectric), position sensors (potentiometer, photoelectric, inductive, magnetoresistive, and capacitive), speed sensors (photoelectric encoders, Hall effect speed sensors, Doppler radar speed sensors, and vibration speed sensors), optical sensors (photodiodes and cameras), and so on.

[0034] It can be understood that the above-mentioned LoRa node 110 is only a specific example. In actual applications, it can also include more or fewer modules, or replace some of the modules, which is not specifically limited here.

[0035] The LoRa gateway 120 is the core hub of the LoRa system, used to implement protocol conversion and manage the LoRa nodes 110. The LoRa gateway 120 may include one or more of a LoRa communication module, a processor module, and a Long-Term Evolution (LTE) communication module.

[0036] The LoRa communication module is similar to the LoRa transmission module in the LoRa node 110 described above and will not be described in detail here. The LoRa communication module is used to implement communication between the LoRa gateway 120 and the LoRa node.

[0037] The processor module can have a variety of specific implementation forms. For example, the processor module can be a microprocessor or a microcontroller unit (MCU). The processor module can include a central processing unit (CPU), a microprocessor (MPU), a neural network processing unit (NPU), a tensor processing unit (TPU) or a data processing unit (DPU), etc., and the embodiments of the present application are not specifically limited. The processor module can also be a single-core processor or a multi-core processor. The processor module can be a combination of a CPU and a hardware chip. The above-mentioned hardware chip can be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The above-mentioned PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL) or any combination thereof. The processor module may also be implemented independently using a logic device with built-in processing logic, such as an FPGA or a digital signal processor (DSP).

[0038] The LTE communication module supports the LTE standard communication protocol and can access cellular networks (such as 3G, 4G, 5G, and 6G networks) to achieve wide-area wireless networking. LTE communication module 1213 divides spectrum resources using Orthogonal Frequency-Division Multiplexing (OFDM) and Single-Carrier Frequency-Division Multiple Access (SC-FDMA) technologies. It utilizes Multiple-Input Multiple-Output (MIMO) multi-antenna technology to increase data rates, and uses the Hybrid Automatic Repeat Request (HARQ) mechanism to ensure data reliability. It also supports mobility management functions such as cell reselection and base station handover.

[0039] It can be understood that the above-mentioned LoRa gateway 120 is only a specific example. In actual applications, it can also include more or fewer modules, or replace some of the modules, which is not specifically limited here.

[0040] Photovoltaic module 130, also known as a solar panel, is used to convert solar energy into direct current electricity using the photoelectric effect. Photovoltaic modules include one or more of monocrystalline silicon photovoltaic modules, polycrystalline silicon photovoltaic modules, thin-film photovoltaic modules, and concentrated photovoltaic modules. The photovoltaic module includes a first sub-area and a second sub-area. The first sub-area has a first heating device, and the second sub-area has a second heating device. The first heating device is used to heat the first sub-area, and the second heating device is used to heat the second sub-area. Optionally, the photovoltaic module may include more sub-areas, each equipped with independent heating devices to heat the corresponding sub-areas. The shape and size of the sub-areas can be customized. The sub-areas can be regular, such as circular, square, or hexagonal, or irregular, for example, based on areas prone to snow accumulation and those less prone to snow accumulation. The sub-area shape can also be customized based on the thermal conductivity of the heating device. The sub-area size can be determined based on snow accumulation conditions. If snow accumulation is high, more sub-areas can be used, while if snow accumulation is low, fewer sub-areas can be used. Furthermore, different sub-areas on the same photovoltaic module can be of the same or different sizes.

[0041] The energy storage battery 140 is used to store electrical energy, acting as a "power bank." When the photovoltaic module 130 generates electricity, the energy is stored; when electricity is needed, the stored energy is released to ensure the stability and continuity of the power supply. The energy storage battery can be one or more of a lead-acid battery storage device, a lithium-ion battery storage device, a sodium-sulfur battery storage device, a supercapacitor storage device, a superconducting energy storage device, and the like. The energy storage battery 140 typically includes a battery cell, a heating film, a PCS, and an EMS. The heating film includes the battery cell. The battery cell is the smallest unit of a battery and the core component for energy storage and release. It is typically composed of materials such as a positive electrode, a negative electrode, an electrolyte, and a separator. Depending on the chemical system, common battery cell types include lithium-ion battery cells, nickel-metal hydride battery cells, and lead-acid battery cells. The heating film is a functional thin film material that generates heat when energized. It typically consists of a heating element, an insulating layer, and a conductive electrode. The heating film can include one or more of a resistive heating film and an infrared heating film. In actual operation scenarios, the EMS collects real-time operating status parameters of the battery cell and PCS, including battery cell charge, voltage, and real-time PCS power. Based on these operating status parameters and user instructions, the EMS issues control instructions to the battery cell and PCS to control their operating status. When the EMS collects operating status parameters and issues control instructions, its communication relies on the communication channel (or communication connection) between the battery cell, PCS, and EMS.

[0042] It can be understood that the above-mentioned LoRa system is only used as a specific example. In actual applications, it can also include more or fewer components, which is not specifically limited here.

[0043] The LoRa system generates electricity through photovoltaic modules and stores it in energy storage batteries (i.e., the charging process). The energy storage batteries then provide electricity to the LoRa gateway (i.e., the discharging process), allowing the LoRa gateway to communicate normally with the LoRa nodes. In low-temperature conditions, for example, when the temperature of the energy storage battery's cells is below a preset temperature threshold, the energy storage battery cannot properly store the electricity generated by the photovoltaic modules. A heating film is required to heat the energy storage battery's cells to ensure that the energy storage battery can store the electricity generated by the photovoltaic modules. When heating the heating film, the energy in the energy storage battery is also consumed (i.e., the discharging process). Simply put, the electricity in the energy storage battery is all generated by the photovoltaic modules, and the electricity in the energy storage battery needs to be provided to both the heating film and the LoRa gateway for use. Here, the preset temperature threshold is the temperature at which the energy storage battery can operate normally. Different types of energy storage batteries have different minimum temperatures for normal charging. For example, the minimum temperature at which lithium iron phosphate (LFP) batteries can be normally charged is approximately zero degrees Celsius, the minimum temperature at which ternary lithium (NCM / NCA) batteries can be normally charged is approximately 5 degrees Celsius, and the minimum temperature at which lithium titanate (LTO) batteries can be normally charged is approximately -30 degrees Celsius. Therefore, the preset temperature threshold varies depending on the type of energy storage battery.

[0044] Given the limited power generated by photovoltaic panels and the competition for power consumption between the heating film and the LoRa gateway, a series of charging and discharging strategies are necessary to ensure a good balance between power generation and consumption. These strategies can include basic and auxiliary charging and discharging strategies. The basic charging and discharging strategy is the core, fundamental, and indispensable control logic of the battery system. The auxiliary charging and discharging strategy is a supplementary control logic designed on top of the basic strategy to optimize battery performance, address special scenarios, or improve system efficiency.

[0045] like Figure 2As shown, the basic charging and discharging strategy can be: when the cell temperature is below a preset temperature threshold and the estimated energy generated by the photovoltaic module is greater than the energy consumed by the heating film, the heating film is activated to heat the cell. When the cell temperature is below a preset temperature threshold and the estimated energy generated by the photovoltaic module is less than or equal to the energy consumed by the heating film, the heating film is disabled from heating the cell. Since the estimated energy generated by the photovoltaic module is higher in good sunlight, a positive return will be generated if the estimated energy generated by the photovoltaic module is greater than the energy consumed by the heating film. Therefore, the heating module can be activated to heat the cell, thereby increasing the energy in the energy storage battery, that is, storing the energy generated by the photovoltaic module in the energy storage battery. However, in poor sunlight, the estimated energy generated by the photovoltaic module is higher, and a negative return will be generated if the estimated energy generated by the photovoltaic module is less than or equal to the energy consumed by the heating film. Therefore, the heating module can be disabled to heat the cell, thereby avoiding energy consumption in the energy storage battery.

[0046] Auxiliary charge and discharge strategies may include one or more of the following:

[0047] (1) When the temperature of the battery cell is lower than the preset temperature threshold, the LoRa gateway is in the power-on state, and the remaining power of the energy storage battery is lower than the shutdown power threshold, the heating film stops heating the battery cell. The shutdown power threshold is equal to the minimum power required to maintain the normal operation of the LoRa gateway. Different types of LoRa gateways require different minimum power to maintain normal operation. Therefore, the shutdown power threshold can be set according to the type of LoRa gateway. Since the LoRa gateway is in the power-on state, it is prioritized to ensure that the LoRa gateway can operate normally. Therefore, once the remaining power of the energy storage battery is lower than the minimum power required to maintain the normal operation of the LoRa gateway, the heating film stops heating the battery cell to prevent the LoRa gateway from automatically entering the shutdown state when the power is low. The heating film is restarted to heat the battery cell only after the power of the energy storage battery has steadily increased.

[0048] (2) When the temperature of the battery cell is less than the battery cell temperature threshold and the power of the photovoltaic module to generate electricity increases, the power of the heating film to generate heat is increased; when the temperature of the battery cell is less than the battery cell temperature threshold and the electricity generated by the photovoltaic module decreases, the power of generating electricity decreases, or the remaining power of the energy storage battery is less than the warning power threshold and greater than the shutdown power threshold, the power of the heating film to generate heat is reduced, wherein the warning power threshold is greater than the shutdown power threshold, and the battery cell temperature threshold can be less than the preset temperature threshold. The warning power thresholds of different types of energy storage batteries are different, so the corresponding warning power threshold can be determined according to the type of energy storage battery. Similarly, the battery cell temperature thresholds of different types of energy storage batteries are different, so the corresponding battery cell temperature threshold can be determined according to the type of energy storage battery. When the power of the photovoltaic module to generate electricity increases and the temperature of the battery cell is still relatively low, the power of the heating film to generate heat can be appropriately increased so that the energy storage battery can enter a normal working state more quickly and reduce unnecessary losses of the energy storage battery. When the power generated by the photovoltaic module decreases or the remaining power of the energy storage battery is less than the warning power threshold and greater than the shutdown power threshold, the power generated by the heating film can be appropriately reduced to avoid rapid consumption of the energy storage battery and cause the LoRa gateway to enter the shutdown state.

[0049] (3) When the power level is less than the safety power threshold, the power supply to the LoRa gateway is stopped, wherein the shutdown power threshold is greater than the safety power threshold. When the power level of the energy storage battery is extremely low, the LoRa gateway can be forcibly powered off to avoid over-discharge of the energy storage battery, thereby shortening the service life of the energy storage battery.

[0050] (4) When the temperature of the battery cell is lower than the preset temperature threshold, the LoRa gateway is in the off state, and the expected power generated by the photovoltaic module minus the power consumed by the heating film during heating is greater than the first power threshold, the heating film is started to heat the battery cell; when the temperature of the battery cell is lower than the preset temperature threshold, the LoRa gateway is in the on state, and the expected power generated by the photovoltaic module minus the power consumed by the heating film during heating is greater than the second power threshold, the heating film is started to heat the battery cell. Wherein, the first power threshold is greater than zero, the second power threshold is greater than zero, and the first power threshold is greater than the second power threshold. When the LoRa gateway is in the off state, it is not in a hurry to use electricity. Therefore, when the sunlight conditions are better or the temperature rises a little higher (that is, the power obtained by subtracting the power consumed by the heating film from the power generated by the photovoltaic module during heating is greater), the heating film can be started to heat the battery cell, thereby charging the energy storage battery. This can avoid charging and discharging at the same time, which reduces the service life of the energy storage battery. When the LoRa gateway is in the on state, because of the urgent need for electricity, even if the sunlight conditions are not so good or the temperature is relatively low (that is, the energy obtained by subtracting the energy consumed by the heating film during heating from the expected energy generated by the photovoltaic components is relatively small), the heating film must be started to heat the battery cell to charge the energy storage battery. This can avoid the LoRa gateway being forced to shut down due to insufficient power.

[0051] (5) When the temperature of the battery cell is lower than the preset temperature threshold and the weather data indicates that it is predicted to be sunny, the heating film is activated to heat the battery cell; when the temperature of the battery cell is lower than the preset temperature threshold and the weather data indicates that it is predicted to be cloudy, the heating film is stopped from heating the battery cell. When the weather data indicates that it is predicted to be sunny, the sunlight conditions are relatively good, and the heating film can be activated to heat the battery cell, thereby charging the energy storage battery. When the weather data indicates that it is predicted to be sunny, the sunlight conditions are relatively poor, and the heating film can be not heated and the energy storage battery can be not charged.

[0052] (6) When the temperature of the battery cell is lower than the critical temperature threshold, the heating film is stopped from heating the battery cell. The critical temperature threshold is lower than the preset temperature threshold. Here, the critical temperature thresholds of different types of energy storage batteries may be different. Therefore, the corresponding critical temperature threshold can be determined according to the type of energy storage battery. When the temperature is extremely low, a large amount of electricity is required to heat the battery cell to a temperature at which it can work normally. Alternatively, under extremely cold weather conditions, it is difficult to heat the battery cell to a temperature at which it can work normally even if a heating film is used to heat the battery cell. Therefore, the heating film can be stopped from heating the battery cell to avoid over-discharge of the energy storage battery, or the battery cell cannot be heated to a temperature at which it can work normally, thereby wasting electricity.

[0053] The above basic charge and discharge strategies and auxiliary charge and discharge strategies are merely specific examples. In practical applications, more basic charge and discharge strategies and auxiliary charge and discharge strategies may be included, which are not specifically limited here.

[0054] In the above embodiments, all or part of the embodiments can be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions that, when loaded and executed on a computer, generate all or part of the processes or functions described in accordance with the embodiments of the present invention. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one network site, computer, server, or data center to another network site, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer, or it can be a data storage device such as a server or data center that includes one or more available media. The available medium can be a magnetic medium (e.g., a floppy disk, hard disk, magnetic tape, etc.), an optical medium (e.g., a DVD, etc.), or a semiconductor medium (e.g., a solid-state drive), etc. In the above embodiments, the description of each embodiment has different emphases. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

Claims

1. A long-distance communication system, characterized in that: include: Long-distance communication LoRa gateway, including a long-distance wireless LoRa communication module, the LoRa communication module is used to realize communication between the LoRa gateway and the LoRa node; Photovoltaic panels, which convert solar energy into electricity; An energy storage battery, used to store the electrical energy generated by the photovoltaic module; when the LoRa gateway needs electricity, the stored electrical energy is released to power the LoRa gateway; The energy storage battery includes a battery cell and a heating film, and the heating film wraps the battery cell. The energy storage battery is also used to start the heating film to heat the battery cell when the temperature of the battery cell is lower than a preset temperature threshold and the expected electric energy generated by the photovoltaic module is greater than the electric energy consumed by the heating film during heating, wherein the preset temperature threshold is equal to the lowest temperature at which the energy storage battery can be charged normally.

2. The long-distance communication system according to claim 1, wherein: The energy storage battery is also used to stop the heating film from heating the battery cell when the temperature of the battery cell is lower than a preset temperature threshold, the LoRa gateway is in the power-on state, and the remaining power of the energy storage battery is lower than the shutdown power threshold, wherein the shutdown power threshold is equal to the minimum power required to maintain the normal operation of the LoRa gateway.

3. The long-distance communication system according to claim 2, wherein: The energy storage battery is further used to increase the power of the heating film to generate heat when the temperature of the battery cell is lower than the battery cell temperature threshold and the power of the photovoltaic assembly to generate electrical energy increases.

4. The long-distance communication system according to claim 2, wherein: When the temperature of the battery cell is lower than the battery cell temperature threshold, and the electric energy generated by the photovoltaic assembly is reduced or the remaining power of the energy storage battery is lower than the warning power threshold and higher than the shutdown power threshold, the power of the heating film to generate heat is reduced, wherein the warning power threshold is higher than the shutdown power threshold.

5. The long-distance communication system according to claim 2, wherein: The energy storage battery is further configured to stop supplying power to the LoRa gateway when the power level is less than a safety power threshold, wherein the shutdown power threshold is greater than the safety power threshold.

6. The long-distance communication system according to claim 1, wherein: The energy storage battery is also used to start the heating film to heat the battery cell when the temperature of the battery cell is lower than a preset temperature threshold, the LoRa gateway is in an off state, and the estimated electric energy generated by the photovoltaic component minus the electric energy consumed by the heating film during heating is greater than a first electric energy threshold; and to start the heating film to heat the battery cell when the temperature of the battery cell is lower than a preset temperature threshold, the LoRa gateway is in an on state, and the estimated electric energy generated by the photovoltaic component minus the electric energy consumed by the heating film during heating is greater than a second electric energy threshold, wherein the first electric energy threshold is greater than zero, the second electric energy threshold is greater than zero, and the first electric energy threshold is greater than the second electric energy threshold.

7. The long-distance communication system according to claim 1, wherein: The energy storage battery is also used to receive weather data. When the temperature of the battery cell is lower than a preset temperature threshold and the weather data indicates that it is predicted to be sunny, the heating film is started to heat the battery cell; when the temperature of the battery cell is lower than the preset temperature threshold and the weather data indicates that it is predicted to be not sunny, the heating film is stopped to heat the battery cell.

8. The long-distance communication system according to claim 1, wherein: The energy storage battery is further configured to stop the heating film from heating the battery cell when the temperature of the battery cell is lower than a critical temperature threshold, wherein the critical temperature threshold is lower than the preset temperature threshold.

9. The long-distance communication system according to claim 1, wherein: The energy storage battery is further used to reduce the charging power when the power of the photovoltaic assembly to generate electrical energy is reduced.

10. The long-distance communication system according to claim 1, wherein: The photovoltaic assembly includes a first partition and a second partition, wherein the first partition has a first heating device, and the second partition has a second heating device. The first heating device is used to heat the first partition, and the second heating device is used to heat the second partition.

Images