Long-term on-duty power supply system and management method

Abstract

The application provides a long-term guarding power supply system and a management and control method, which comprises a thermal battery, a low-power management and control module and a load. The thermal battery is connected with the low-power management and control module and the load. When the low-power management and control module receives an execution task signal, the thermal battery supplies power for the low-power management and control module and the load. The low-power management and control module is connected with the thermal battery and the load. During the guarding process, the low-power management and control module receives a wake-up signal, performs self-checking and other operations on the long-term guarding power supply system according to the received flow, and activates the thermal battery when the execution task signal is received. The load is a load for executing related tasks. The application prolongs the guarding time of the long-term guarding device, which can be up to several years, and realizes safe and reliable long-time guarding and task completion.

Description

Technical Field

[0001] This invention belongs to the field of electrical energy management and control, specifically relating to a long-term monitored electrical energy system and its management and control method. Background Technology

[0002] Currently, low-power standby technologies mainly fall into two categories. One type involves installing only a battery and using low-power management technology to achieve standby for a certain period, such as common mobile phones and mobile radios, which can achieve low-power standby for up to about 6 months. After the battery is depleted, it can be reused by replacing the battery or recharging. The other type of long-term standby equipment uses rechargeable batteries plus continuous power replenishment, such as satellite power supplies. These use installed solar panels for periodic charging, allowing the satellite to operate continuously for decades.

[0003] In the area of ​​long-term energy storage, there are two main aspects: battery technology and technologies for converting other energy sources into electricity. Common battery technologies such as ternary lithium batteries, lithium iron phosphate batteries, and lead-acid batteries have high self-discharge rates, typically running out of power within a year. Alkaline batteries have a slightly lower self-discharge rate, but their low energy density results in large size. Solid-state batteries, on the other hand, are not yet mature enough for practical application. While thermal batteries can be stored for many years, they do not release electrical energy during storage and require external power to activate, making periodic operation and dormancy impossible. Other energy conversion technologies, such as hydrogen fuel cell technology, are bulky, complex, costly, and have low reliability. Nuclear technology, which utilizes isotope decay heat to generate electricity, faces even greater safety and cost issues. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a long-term operational electrical energy system and its management method. The solution of this invention can solve the problems existing in the prior art.

[0005] The technical solution of this invention:

[0006] According to a first aspect, a long-term standby power supply system is provided, comprising a thermal battery, a low-power management module, and a load. The thermal battery is connected to the low-power management module and the load. When the low-power management module receives a task execution signal, it supplies power to the low-power management module and the load. The low-power management module is connected to the thermal battery and the load. During standby, it receives a wake-up signal, performs self-checks and other operations on the long-term standby power supply system according to the received procedure, and activates the thermal battery when it receives a task execution signal. The load is a payload for performing relevant tasks.

[0007] Furthermore, the low-power management module includes an independent battery, a DC-DC module, a main chip, a timer, a wake-up unit, and a self-sustaining wake-up unit. The independent battery is connected to the timer, wake-up unit, and self-sustaining wake-up unit. The timer is connected to the main chip and DC-DC module respectively, sending high-level wake-up signals to the main chip and DC-DC module according to a preset interrupt interval. The DC-DC module is a power module with an enable signal control. One end of the DC-DC module is connected to the wake-up unit, timer, and self-sustaining wake-up unit, and the other end is connected to the main chip. After receiving an external wake-up signal, the wake-up unit and self-sustaining wake-up unit generate a high-level signal. The signal is transmitted to the DC-DC module, which generates an enable signal to wake up the DC-DC module and power the main chip. One end of the main chip is connected to the DC-DC module, and the other end is connected to the timer, wake-up unit, and self-sustaining wake-up unit. After receiving power from the DC-DC module, the main chip receives the high-level wake-up signal from the timer and wake-up unit, and generates an IO high-level signal, which is transmitted to the self-sustaining wake-up unit and the external relay module, thereby realizing the control of external devices. After receiving the IO high-level signal output from the main chip, the self-sustaining wake-up unit outputs a high-level wake-up signal, which is input to the DC-DC module and the main chip.

[0008] Furthermore, the wake-up unit includes an IO wake-up module, a wireless wake-up module, and a CAN wake-up module.

[0009] Furthermore, the wireless wake-up module includes a power conversion component, a wake-up component, and a state machine. The power conversion component converts the voltage of the independent battery into the voltage required by the wake-up component and the state machine to power them. The wake-up component has two states: receiving and sleeping. The state machine controls the state of the wake-up component.

[0010] Preferably, the wireless wake-up module further includes a wireless communication component, which enables wireless communication between the main chip and other devices.

[0011] Furthermore, the CAN wake-up module includes a power conversion section, a wake-up section, and a communication section. The wake-up section is powered by an independent power supply and sends a high level to the main chip when it receives a CAN wake-up signal. The power conversion section converts the voltage of the DC-DC module into the voltage used by the communication section. The communication section completes CAN communication between the main chip and other devices.

[0012] Furthermore, the timer includes a timing module and a supercapacitor / rechargeable battery module. The supercapacitor / rechargeable battery module is charged when powered by an external power source and supplies power to the timing module when no external power source is available. According to the settings of the main chip, the timing module periodically provides a high-level signal to the main chip and the DC-DC module after the external power source is disconnected.

[0013] Furthermore, after being woken up and completing their tasks, the timer, wireless wake-up module, CAN wake-up module, and self-sustaining wake-up module are configured by the main chip to enter power-off sleep mode again.

[0014] Furthermore, a 10k resistor is connected in series between the wake-up unit and the main chip, between the self-sustaining wake-up unit and the main chip, and between the timer and the main chip.

[0015] Furthermore, a magnetic latching relay is connected in series between the wake-up unit and the self-sustaining wake-up unit and the DC-DC module.

[0016] Furthermore, when the main chip is powered, the self-sustaining wake-up unit is controlled by the main chip to output a high level. This high level is input to the main chip and the DC-DC module. When the main chip is powered off or the main chip outputs a low level, the self-sustaining wake-up unit outputs a low level signal to shut down the DC-DC module.

[0017] Preferably, the main chip, timer, wake-up unit, and self-sustaining wake-up unit output a low-level signal when no high-level signal is output.

[0018] Furthermore, the long-term power supply system also includes an activation device, which is connected to the low-power management module. When the low-power management module receives a wake-up signal, the main chip controls the activation device to generate a 100ms pulse, which is then sent to the independent battery.

[0019] Preferably, the independent battery is a lithium fluoride carbon battery.

[0020] Preferably, the independent battery is two lithium fluoride batteries of the same specification connected in parallel.

[0021] Preferably, the positive terminal of the thermal battery and the independent battery is connected to the negative terminal of the diode.

[0022] According to the second aspect, the above-mentioned long-term on-duty power energy management method is provided, including the following steps:

[0023] The long-term standby power supply system is configured to be in low-power mode;

[0024] Determine if a wake-up signal has been received. If a wake-up signal is received, determine if the scheduled task after wake-up is the platform's final task. If so, wake up the thermal battery to supply power to the long-term standby power system and control the load to execute according to the final task. If not, operate according to the long-term standby method.

[0025] Furthermore, the aforementioned long-term monitoring method includes the following steps:

[0026] Step 1: When a wake-up signal is received, the main chip works to detect the source of the wake-up signal. If it is a timer wake-up, proceed to Step 2; otherwise, proceed to Step 5.

[0027] Step 2: The self-sustaining wake-up unit operates and records whether the time is the periodic wake-up time of the timer. If yes, proceed to step 3; otherwise, proceed to step 4.

[0028] Step 3: Perform a self-test on the system according to the pre-prepared self-test procedure until the self-test is completed;

[0029] Step 4: The main chip is powered off, and the self-sustaining wake-up unit powers off the entire monitoring device and puts it back into hibernation. This wake-up process is now complete.

[0030] Step 5: Determine if the wake-up signal is consistent with the predetermined wake-up signal. If they are consistent, proceed to step 6; otherwise, proceed to step 4.

[0031] Step six: Execute the pre-defined task after wake-up. After the task is completed, proceed to step four.

[0032] Furthermore, a long-term monitoring method includes the following steps:

[0033] Step 1: When a wake-up signal is received, the main chip works to detect the source of the wake-up signal. If it is a timer wake-up, proceed to Step 2; otherwise, proceed to Step 5.

[0034] Step 2: The self-sustaining wake-up unit operates and records whether the time is the periodic wake-up time of the timer. If yes, proceed to step 3; otherwise, proceed to step 4.

[0035] Step 3: Perform a self-test on the system according to the pre-prepared self-test procedure until the self-test is completed;

[0036] Step 4: The main chip is powered off, and the self-sustaining wake-up unit powers off the entire monitoring device and puts it back into hibernation. It then determines whether the hibernation was successful. If successful, the wake-up process is complete. If unsuccessful, proceed to step 5.

[0037] Step 5: Set the timer fault and disconnect it from the DC-DC module. Power off the main chip, and the self-sustaining wake-up unit will power off the entire monitoring device and put it back into sleep mode.

[0038] Step six: Determine if the wake-up signal matches the predetermined wake-up signal. If they match, proceed to step eight; otherwise, proceed to step seven.

[0039] Step 7: The main chip is powered off, and the self-sustaining wake-up unit powers off the entire monitoring device and puts it back into sleep mode. It then checks whether the wake-up signal has disappeared after sleep mode. If so, it goes into sleep mode. If not, it sets the corresponding wake-up unit to fault, disconnects it from the DC-DC module, and then goes into sleep mode.

[0040] Step 8: Execute the pre-defined tasks after wake-up. After the tasks are completed, the main chip is powered off, and the self-sustaining wake-up unit powers off the entire monitoring device and puts it back into hibernation.

[0041] The beneficial effects of this invention compared to the prior art are as follows:

[0042] (1) By setting and selecting different wake-up methods, this invention extends the standby time of the long-term standby device to several years by turning off the main chip during the standby period and turning on the main chip after wake-up.

[0043] (2) By setting up a magnetic latching relay, the present invention enables the selection of wake-up mode and physical disconnection of problematic wake-up modules under low power consumption, thereby improving the safety and reliability of long-term monitoring devices.

[0044] (3) By using thermal batteries and lithium fluorine carbon batteries, the present invention uses lithium fluorine carbon batteries to power the duty period to achieve long-term duty, and uses thermal batteries to power the final task to ensure the reliability of task execution, thus achieving safe and reliable long-term duty and task completion. Attached Figure Description

[0045] The accompanying drawings, which form part of this specification, are provided to further illustrate embodiments of the invention and, together with the textual description, explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0046] Figure 1 A schematic diagram of a long-term standby power energy system structure provided according to an embodiment of the present invention is shown;

[0047] Figure 2 A schematic diagram of a low-power management module structure provided according to an embodiment of the present invention is shown;

[0048] Figure 3 The diagram illustrates the steps of a long-term monitoring method according to an embodiment of the present invention.

[0049] Figure 4 The diagram illustrates the steps of a long-term monitoring method according to a specific embodiment of the present invention.

[0050] Figure 5 A schematic diagram of a long-term standby power energy system structure provided according to a specific embodiment of the present invention is shown. Detailed Implementation

[0051] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0053] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0054] like Figure 1As shown, according to an embodiment of the present invention, a long-term standby power system is provided according to a first aspect, including a battery, a low-power management module, and a load. The battery is a thermal battery and is connected to the low-power management module and the load. When the low-power management module receives a task execution signal, it supplies power to the low-power management module and the load. The low-power management module is connected to the battery and the load, receives a wake-up signal during the standby process, performs self-tests and other operations on the long-term standby power system according to the received process, and activates the battery when it receives a task execution signal. The load is a payload for performing relevant tasks.

[0055] Further in one embodiment, such as Figure 2 As shown, the low-power management module includes an independent battery, a DC-DC module, a main chip, a timer, a wake-up unit, and a self-sustaining wake-up unit. The independent battery is connected to the timer, wake-up unit, and self-sustaining wake-up unit to power each unit. The timer is connected to the main chip and the DC-DC module respectively, sending high-level wake-up signals to the main chip and the DC-DC module according to a preset interrupt interval. The DC-DC module is a power module with an enable signal control. One end of the DC-DC module is connected to the wake-up unit, timer, and self-sustaining wake-up unit, and the other end is connected to the main chip. After receiving the external wake-up signal, the wake-up unit and the self-sustaining wake-up unit generate a high-level signal. The signal is transmitted to the DC-DC module, which generates an enable signal to wake up the DC-DC module and power the main chip. One end of the main chip is connected to the DC-DC module, and the other end is connected to the timer, wake-up unit, self-sustaining wake-up unit, and external relay module. After receiving power from the DC-DC module, the main chip receives the high-level wake-up signals from the timer and wake-up unit, and generates a high-level IO signal, which is transmitted to the self-sustaining wake-up unit and external relay module, thereby realizing the control of external devices. After receiving the high-level IO signal output from the main chip, the self-sustaining wake-up unit outputs a high-level wake-up signal, which is input to the DC-DC module and the main chip.

[0056] In one further embodiment, the wake-up unit includes an IO wake-up module, a wireless wake-up module, and a CAN wake-up module. Different wake-up modules can be used for wake-up in different situations, and other wake-up methods can be used after one wake-up method fails, thereby improving the security of the system.

[0057] In a further embodiment, the wireless wake-up module includes a power conversion component, a wake-up component, and a state machine. The power conversion component converts the voltage of the independent battery into the voltage required by the wake-up component and the state machine, supplying them with power. Preferably, in one embodiment, the battery conversion component is a front-end low static loss DC-DC power module. The wake-up component has two states: receiving and sleeping. The state machine controls the state of the wake-up component. Preferably, in one embodiment, when there is no external radio electromagnetic wave signal, the wireless wake-up module periodically switches between the receiving and sleeping states internally. During this process, the wireless module continuously outputs a low level IO. When there is an external radio electromagnetic wave with a matching frequency, bandwidth, and modulation method, the wireless wake-up module can receive data and output a high level IO in the receiving state. The IO level output by the wireless wake-up module is sent to the enable pins of the main chip and the DC-DC module. Because the wireless wake-up module consumes a lot of power in the receiving state, but can only receive external wireless wake-up signals in the receiving state, the time and ratio of the receiving and sleeping states are determined according to the specific situation. If low power consumption is required and the accuracy of the wake-up time is not high, the proportion of the sleeping state can be increased. In this embodiment, the ratio of reception time to sleep time is 1:6. Preferably, the signal to the main chip needs to be connected in series with a 10k resistor to ensure that the DC-DC module can be enabled when the main chip is not powered. Due to the integrated wireless wake-up module, connectionless wake-up communication can be achieved in water, avoiding problems such as watertightness and plugging / unplugging.

[0058] In a preferred embodiment, the wireless wake-up module further includes a wireless communication component that enables wireless communication between the main chip and other devices. Typically, the devices using wireless communication are external to the aircraft. In this embodiment, the wireless communication component enables wireless communication between the main chip and the monitor.

[0059] In a further embodiment, the CAN wake-up module includes a power conversion section, a wake-up section, and a communication section. The wake-up section is powered by an independent power supply and sends a high-level signal to the main chip upon receiving a CAN wake-up signal. The power conversion section converts the voltage of the DC-DC module to the voltage used by the communication section. In this embodiment, there are two sets of power conversion sections: one set converts the voltage of the DC-DC module to 5V for the 5V communication section, and the other set further converts the 5V voltage to 3.3V for the 3.3V communication section. The communication section completes CAN communication between the main chip and other devices. In this embodiment, CAN communication enables communication between the internal devices of the aircraft and the main chip.

[0060] In a further embodiment, the timer includes a timing module and a supercapacitor / rechargeable battery module. The supercapacitor / rechargeable battery module charges when powered by an external power source and powers the timing module when no external power source is available. According to the settings of the main chip, the timing module periodically provides a high-level signal to the main chip and the DC-DC module after the external power source is disconnected. In a preferred further embodiment, the periodicity is determined by the system's self-test time as needed; in this embodiment, it is 500 hours.

[0061] In a further embodiment, after being woken up and completing their tasks, the timer, wireless wake-up module, CAN wake-up module, and self-sustaining wake-up module are configured by the main chip to enter power-off sleep mode again.

[0062] In a further embodiment, a 10k resistor is connected in series between the wake-up unit and the main chip, between the self-sustaining wake-up unit and the main chip, and between the timer and the main chip, respectively, to ensure that the DC-DC converter can be enabled when the main chip is not powered.

[0063] In a further embodiment, a magnetic latching relay is connected in series between the wake-up unit, the self-sustaining wake-up unit, the timer, and the DC-DC module. The enable signal of the DC-DC module is selected by different wake-up signals through the magnetic latching relay. The main chip can control the disconnection of the abnormal path as needed or in case of an abnormal situation. Since the magnetic latching relay can maintain the open state of the switch after the magnetic latching relay is turned off even without power supply, the low power consumption requirement can be met.

[0064] In a further embodiment, when the main chip is powered, the self-sustaining wake-up unit is controlled by the main chip to output a high-level signal. This high-level signal is input to the main chip and the DC-DC module. When the main chip is powered off or its output is low, the self-sustaining wake-up unit outputs a low-level signal to shut down the DC-DC module, thereby completing the power-off of the entire system. Through the self-sustaining wake-up unit, the main chip can be woken up by a wake-up signal sent by a timer when there is no external wake-up, and the main chip and DC-DC module can be woken up to perform a self-test of the monitoring device, thereby obtaining the status of the monitoring device and improving its reliability.

[0065] In a further embodiment, one end of the main chip is connected to the DC-DC module, and the other end is connected to a timer, a wake-up unit, a self-sustaining wake-up unit, and an external relay module. After receiving power from the DC-DC module, the main chip receives high-level wake-up signals from the timer and the wake-up unit, and generates a high-level IO signal, which is transmitted to the self-sustaining wake-up unit and the external relay module, thereby realizing the control of external devices. After being woken up by any signal source, the main chip first performs signal source judgment, then initializes the state of all modules and performs functional diagnosis. The diagnostic interface can be transmitted to the core device in the load via wireless or CAN bus, and then executes the pre-set work content according to the judgment. In this invention, in the low-power state, the most complex main control chip is in a power-off state, and the program will not run away during long-term operation, improving the safety and reliability of the entire system. After the main line is woken up, wake-up signal monitoring and communication signal composite verification can be performed to execute relevant energy management actions.

[0066] In a preferred embodiment, the monitoring device and the connected equipment can be powered by an external relay module, and can be expanded to use isolated RS422, Ethernet, 1553B and other buses for complete isolation communication with the equipment, which can ensure complete electrical isolation communication with other electronic and electrical systems of the equipment and increase EMC anti-interference capability.

[0067] In a preferred embodiment, the independent battery is a lithium fluoride battery. The long-term standby power system also includes an activation device connected to a low-power management module. When the low-power management module receives a wake-up signal, the main chip controls the activation device to generate a 100ms pulse, which is sent to the independent battery. In a specific embodiment, the activation device is an RC circuit connected in series with the load, and the generated current is designed to remove the passivation layer of the lithium fluoride battery.

[0068] In a preferred embodiment, the independent battery consists of two identical lithium fluoride batteries connected in parallel, ensuring power supply reliability through redundancy.

[0069] In a preferred embodiment, the positive terminal of the battery and the independent battery are connected to the negative terminal of the diode. The diode prevents reverse current flow, thereby ensuring the reliability of the battery and ensuring that if one of the two independent batteries fails, the other is not affected.

[0070] In a further embodiment, the long-term power supply system also includes a measurement system, which is connected to the load and the battery at both ends, respectively. The measurement system measures the current and voltage of the battery and feeds them back to the low-power management module to determine whether the battery power meets the requirements.

[0071] According to the second aspect embodiment, a long-term on-call power energy management method is provided, comprising the following steps:

[0072] The long-term standby power supply system is configured to be in low-power mode;

[0073] Determine if a wake-up signal has been received. If a wake-up signal is received, determine if the scheduled task after wake-up is the platform's final task. If so, wake up the thermal battery to supply power to the long-term standby power system and control the load to execute according to the final task. If not, operate according to the long-term standby method.

[0074] In a further embodiment, a long-term monitoring power management method also includes detecting load current and voltage to promptly identify whether the power supply in the system is operating normally.

[0075] Further in one embodiment, such as Figure 3 As shown, the long-term monitoring method includes the following steps:

[0076] Step 1: When a wake-up signal is received, the main chip works to detect the source of the wake-up signal. If it is a timer wake-up, proceed to Step 2; otherwise, proceed to Step 5.

[0077] Step 2: The self-sustaining wake-up unit operates and records whether the time is the periodic wake-up time of the timer. If yes, proceed to step 3; otherwise, proceed to step 4.

[0078] Step 3: Perform a self-test on the system according to the pre-prepared self-test procedure until the self-test is completed;

[0079] Step four: The main chip is powered off, and the self-sustaining wake-up unit powers off the entire monitoring device and puts it back into hibernation. This wake-up procedure is now complete. Through the above steps, the system can perform a periodic self-check when there is no external wake-up signal, ensuring low power consumption while periodically determining whether the system is operating normally.

[0080] Step 5: Determine if the wake-up signal is consistent with the predetermined wake-up signal. If they are consistent, proceed to step 6; otherwise, proceed to step 4.

[0081] Step six involves executing the pre-defined tasks upon wake-up. After the tasks are completed, the process returns to step four. Through steps five and six, the pre-defined tasks are completed upon receiving an external wake-up signal, and the system then enters a hibernation state, reducing energy consumption and facilitating long-term monitoring and the execution of the next task.

[0082] Further in one embodiment, such as Figure 2 As shown, a magnetic latching relay is connected in series between the wake-up unit, the self-sustaining wake-up unit, and the timer and the DC-DC module, which is a long-term standby method, such as... Figure 4 As shown, it includes the following steps:

[0083] Step 1: When a wake-up signal is received, the main chip works to detect the source of the wake-up signal. If it is a timer wake-up, proceed to Step 2; otherwise, proceed to Step 5.

[0084] Step 2: The self-sustaining wake-up unit operates and records whether the time is the periodic wake-up time of the timer. If yes, proceed to step 3; otherwise, proceed to step 4.

[0085] Step 3: Perform a self-test on the system according to the pre-prepared self-test procedure until the self-test is completed;

[0086] Step 4: The main chip is powered off, and the self-sustaining wake-up unit powers off the entire monitoring device and puts it back into hibernation. It then determines whether the hibernation was successful. If successful, the wake-up process is complete. If unsuccessful, proceed to step 5.

[0087] Step 5: Set the timer fault and disconnect it from the DC-DC module. Power off the main chip, and the self-sustaining wake-up unit will power off the entire monitoring device and put it back into sleep mode.

[0088] Step six: Determine if the wake-up signal matches the predetermined wake-up signal. If they match, proceed to step eight; otherwise, proceed to step seven.

[0089] Step 7: The main chip is powered off. The self-sustaining wake-up unit powers off the entire monitoring device and puts it back into sleep mode. It checks whether the wake-up signal has disappeared after sleep mode. If yes, it goes into sleep mode. If no, it sets the corresponding wake-up unit fault, disconnects it from the DC-DC module, and then goes into sleep mode.

[0090] Step 8: Execute the pre-defined tasks after wake-up. After the tasks are completed, the main chip is powered off, and the self-sustaining wake-up unit powers off the entire monitoring device and puts it back into hibernation.

[0091] To better illustrate the present invention, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide further details.

[0092] like Figure 5 As shown, in a specific embodiment, the independent power supplies B2 and B3 are lithium fluorocarbon batteries with the highest theoretical specific energy (approximately 2180 Wh / kg). They have the characteristics of high specific energy, high voltage, and low self-discharge rate. However, lithium fluorocarbon batteries have a large internal resistance, and their voltage platform fluctuates significantly with load changes. By connecting anti-backflow diodes D2 and D3 in series, the failure of one lithium fluorocarbon battery can ensure that the other lithium fluorocarbon battery will not be affected.

[0093] The thermal battery B1 is a one-time reserve power source activated by a heat source, using molten salt as the electrolyte. It boasts advantages such as high specific energy and specific power, strong environmental adaptability, long storage time, rapid and reliable activation, compact structure, simple process, low production cost, and maintenance-free operation. It outputs a stable 24V voltage. During storage, relay K1 is in the open state, completely physically isolating it from lithium fluoride carbon batteries B2 and B3, as well as other electrical systems, ensuring that the electrical environment remains energized during storage. When the thermal battery B1 is activated, relay K1 closes, and the thermal battery B1, lithium fluoride carbon batteries B2 and B3 form a parallel battery pack. Its output voltage is determined by the highest voltage platform. Since each circuit has diode reverse current protection, power supply reliability is guaranteed.

[0094] The low-power management module M1 is connected to loads 1, 2, 3 and the series RC via relays K2, K3, K4 and K5. In the low-power monitoring state, the relays are disconnected. When there is a wake-up signal, the low-power management module M1 determines whether to connect the relays according to the task received, thereby completing the task.

[0095] The measurement system measures the current and voltage between the load and the battery to determine whether the battery is in good condition.

[0096] The long-term power supply device and method of the present invention can achieve a low power consumption of 10mW and a long-term operation of up to 6 years using a 24V power supply platform.

[0097] In summary, the long-term standby power energy device and method provided by this invention have at least the following advantages compared to the prior art:

[0098] (1) By setting and selecting different wake-up methods, this invention extends the standby time of the long-term standby device to several years by turning off the main chip during the standby period and turning on the main chip after wake-up.

[0099] (2) By setting up a magnetic latching relay, the present invention enables the selection of wake-up mode and physical disconnection of problematic wake-up modules under low power consumption, thereby improving the safety and reliability of long-term monitoring devices.

[0100] (3) By using thermal batteries and lithium fluoride batteries, the present invention uses lithium fluoride batteries to power the duty period to achieve long-term duty, and uses thermal batteries to power the duty when performing tasks to ensure the reliability of task execution, thus achieving safe and reliable long-term duty and task completion.

[0101] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0102] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0103] The above are merely preferred embodiments of the present invention and are not intended to limit the present 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 long-term standby electrical energy system, characterized in that, The system includes a thermal battery, a low-power management module, and a load. The thermal battery is connected to the low-power management module and the load. When the low-power management module receives a task execution signal, it supplies power to the low-power management module and the load. The low-power management module is connected to the thermal battery and the load. During the monitoring process, it receives a wake-up signal, performs self-checks and other operations on the long-term monitoring power system according to the received procedure, and activates the thermal battery when it receives a task execution signal. The load is the payload for performing the relevant tasks. The low-power management module includes an independent battery, a DC-DC module, a main chip, a timer, a wake-up unit, and a self-sustaining wake-up unit. The independent battery is connected to the timer, wake-up unit, and self-sustaining wake-up unit. The timer is connected to the main chip and DC-DC module respectively, sending high-level wake-up signals to the main chip and DC-DC module according to a preset interrupt interval. The DC-DC module is a power module with enable signal control. One end of the DC-DC module is connected to the wake-up unit, timer, and self-sustaining wake-up unit, and the other end is connected to the main chip. After receiving an external wake-up signal, the wake-up unit and self-sustaining wake-up unit generate a high-level signal and transmit it to the DC-DC module. An enable signal is generated to wake up the DC-DC module and power the main chip. One end of the main chip is connected to the DC-DC module, and the other end is connected to the timer, wake-up unit, and self-sustaining wake-up unit. After receiving power from the DC-DC module, the main chip receives the high-level wake-up signal from the timer and wake-up unit, and generates a high-level IO signal, which is transmitted to the self-sustaining wake-up unit and the external relay module, thereby realizing the control of external devices. After receiving the high-level IO signal from the main chip, the self-sustaining wake-up unit outputs a high-level wake-up signal, which is input to the DC-DC module and the main chip. A magnetic latching relay is connected in series between the wake-up unit and the self-sustaining wake-up unit and the DC-DC module. The independent battery consists of two identical lithium fluoride carbon batteries connected in parallel. The long-term power supply system also includes an activation device connected to the low-power management module. When the low-power management module receives a wake-up signal, the main chip controls the activation device to generate a 100ms pulse, which is then sent to the independent battery.

2. The long-term operational electrical energy system according to claim 1, characterized in that, The wake-up unit includes an IO wake-up module, a wireless wake-up module, and a CAN wake-up module.

3. The long-term operational electrical energy system according to claim 2, characterized in that, The wireless wake-up module includes a power conversion component, a wake-up component, and a state machine. The power conversion component converts the voltage of the independent battery into the voltage required by the wake-up component and the state machine to power them. The wake-up component has two states: receiving and sleeping. The state machine controls the state of the wake-up component.

4. The long-term standby power energy system according to claim 3, characterized in that, The CAN wake-up module includes a power conversion section, a wake-up section, and a communication section. The wake-up section is powered by an independent power supply and sends a high level to the main chip when it receives a CAN wake-up signal. The power conversion section converts the voltage of the DC-DC module into the voltage used by the communication section. The communication section completes CAN communication between the main chip and other devices.

5. A long-term standby electrical energy system according to claim 3, characterized in that, The timer includes a timing module and a supercapacitor / rechargeable battery module. The supercapacitor / rechargeable battery module is charged when powered by an external power source and supplies power to the timing module when no external power source is available. According to the settings of the main chip, the timing module periodically provides a high-level signal to the main chip and the DC-DC module after the external power source is disconnected.

6. A long-term monitored power management method for a long-term monitored power system as described in any one of claims 1-5, characterized in that, The method includes the following steps: The long-term standby power supply system is configured to be in low-power mode; Determine if a wake-up signal has been received. If a wake-up signal has been received, determine if the scheduled task after wake-up is the platform's final task. If so, wake up the thermal battery to supply power to the long-term standby power system and control the load to execute according to the final task. If not, operate according to the long-term standby method. The aforementioned long-term monitoring method includes the following steps: Step 1: When a wake-up signal is received, the main chip works to detect the source of the wake-up signal. If it is a timer wake-up, proceed to Step 2; otherwise, proceed to Step 5. Step 2: The self-sustaining wake-up unit operates and records whether the time is the periodic wake-up time of the timer. If yes, proceed to step 3; otherwise, proceed to step 4. Step 3: Perform a self-test on the system according to the pre-prepared self-test procedure until the self-test is completed; Step 4: The main chip is powered off, and the self-sustaining wake-up unit powers off the entire monitoring device and puts it back into hibernation. It then determines whether the hibernation was successful. If successful, the wake-up process is complete. If unsuccessful, proceed to step 5. Step 5: Set the timer fault and disconnect it from the DC-DC module. Power off the main chip, and the self-sustaining wake-up unit will power off the entire monitoring device and put it back into sleep mode. Step six: Determine if the wake-up signal matches the predetermined wake-up signal. If they match, proceed to step eight; otherwise, proceed to step seven. Step 7: The main chip is powered off. The self-sustaining wake-up unit powers off the entire monitoring device and puts it back into sleep mode. It checks whether the wake-up signal has disappeared after sleep mode. If yes, it goes into sleep mode. If no, it sets the corresponding wake-up unit fault, disconnects it from the DC-DC module, and then goes into sleep mode. Step 8: Execute the pre-defined tasks after wake-up. After the tasks are completed, the main chip is powered off, and the self-sustaining wake-up unit powers off the entire monitoring device and puts it back into hibernation.

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