Wake-up control method and intelligent area terminal

Abstract

This invention relates to the field of wake-up control technology and discloses a wake-up control method and a smart distribution terminal. Applied to a smart distribution terminal, the method includes a backup power supply, a main control unit, multiple functional modules, and a switch array. Each switch in the switch array is connected to the backup power supply, a functional module, and the main control unit. A main control power supply control command is generated through a wake-up control command, and the main control unit is woken up according to the main control power supply control command. When the main control unit is woken up, the wake-up priority of the functional modules is determined, and the functional modules to be woken up are sequentially determined according to the module wake-up priority. For each functional module to be woken up, a corresponding target switch is determined. The target switch is driven and controlled according to a preset control waveform, which includes a control waveform with an increasing duty cycle. During the drive control, the voltage in the functional module to be woken up increases in a ramp-like manner. This invention improves the wake-up control effect of the smart distribution terminal.

Description

Technical Field

[0001] This invention relates to the field of wake-up control technology, and in particular to a wake-up control method and a smart station terminal. Background Technology

[0002] As the application of power terminals (such as smart distribution area terminals) becomes more and more widespread, users have also put forward higher requirements for the wake-up control method of smart distribution area terminals under backup power supply conditions.

[0003] Traditional wake-up control relies on the rechargeable backup battery within the smart distribution terminal to control the loads within the terminal, thus achieving wake-up control under backup power supply conditions. This method has certain limitations. As the load within the smart distribution terminal increases, the rechargeable backup battery may not be able to simultaneously power all loads, resulting in poor wake-up control performance.

[0004] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main objective of this invention is to propose a wake-up control method and an intelligent cell terminal, aiming to solve the technical problem of poor wake-up control performance of intelligent cell terminals.

[0006] To achieve the above objectives, the present invention provides a wake-up control method applied to a smart distribution terminal. The smart distribution terminal includes a backup power supply, a main control unit, multiple functional modules, and a switch array. The input terminal of each switch in the switch array is connected to the backup power supply, one switch is connected to the power supply terminal of one of the functional modules, and the control terminal of one switch is connected to the main control unit. The wake-up control method includes the following steps: In response to the wake-up control command, a main control power supply control command is generated, and the backup power supply is controlled to power and wake up the main control unit according to the main control power supply control command; When the main control unit is in the power-on wake-up state, the wake-up priority of the module in the functional module is determined according to the main control unit, and the functional modules to be woken up are determined sequentially in the functional module according to the module wake-up priority. For each functional module to be woken up, the target switching transistor corresponding to the functional module to be woken up is determined. The target switching transistor is driven and controlled according to a preset control waveform, wherein the preset control waveform includes a control waveform with an increasing duty cycle. When the target switching transistor is driven and controlled according to the preset control waveform, the voltage of the electrolytic capacitor in the wake-up function module increases in a ramp manner.

[0007] In one embodiment, the backup power supply includes a supercapacitor and a rechargeable backup battery. The input terminal of the target switching transistor is connected to the supercapacitor and the rechargeable backup battery. Before the step of driving and controlling the target switching transistor according to a preset control waveform, the following steps are included: When the output energy value of the supercapacitor is less than a preset energy threshold, the supercapacitor is disconnected from the input terminal of the target switch, and the rechargeable backup battery is connected to the input terminal of the target switch. When the output energy value of the supercapacitor is greater than or equal to a preset energy threshold, the supercapacitor is connected to the input terminal of the target switch, and the rechargeable backup battery is connected to the input terminal of the target switch.

[0008] For example, the entire wake-up process uses a voltage ramp-up method and a supercapacitor for auxiliary charging to avoid the instantaneous current exceeding the power supply of the rechargeable backup battery, thereby ensuring the normal wake-up function module while protecting the rechargeable backup battery to the maximum extent.

[0009] In one embodiment, the intelligent distribution terminal further includes a current detection unit disposed between the backup power supply and the functional module. After the step of driving and controlling the target switching transistor according to a preset control waveform, the following steps are included: The first real-time current value collected by the current detection unit is obtained, wherein the first real-time current value includes the current value collected after each change of the preset control waveform; When the first real-time current value is greater than the first current threshold, the target control waveform for driving the target switch is determined at the current moment, and the target switch is driven and controlled according to the target control waveform.

[0010] In one embodiment, after the step of driving and controlling the target switch based on the target control waveform, the method includes: The second real-time current value collected by the current detection unit is obtained, wherein the second real-time current value includes the current value collected under the target control waveform drive control; When the second real-time current value is greater than the second current threshold, the target switch is stopped from driving according to a preset stop driving command, wherein the second current threshold is greater than the first current threshold.

[0011] In one embodiment, after the step of acquiring the second real-time current value collected by the current detection unit, the process includes: When the second real-time current value is less than or equal to the second current threshold, and the driving duration of the target control waveform reaches the preset driving duration threshold, the target switching transistor is driven and controlled according to the preset maximum duty cycle control waveform.

[0012] For example, in addition to using a voltage ramp-up to ensure the wake-up effect and protect the rechargeable backup battery, the entire wake-up process also monitors the current during the entire wake-up process. Based on the monitoring results of the wake-up current, the progress of the voltage ramp is controlled and it is determined whether the wake-up needs to be stopped. This can address the damage to the rechargeable backup battery caused by the continuously increasing current during the wake-up process in special scenarios. In other words, the safety of the rechargeable backup battery and the wake-up effect are ensured by real-time wake-up current monitoring.

[0013] In one embodiment, after the step of stopping the target switch according to the preset stop drive command, the following steps are included: When there are multiple functional modules in the functional modules to be woken up, for each functional module to be woken up, the steps of driving and controlling the target switching transistor according to the preset control waveform are executed sequentially, and / or; In response to the coordinated power supply control command, the supercapacitor in the backup power supply is controlled to be in a coordinated power supply state, so as to perform the step of driving and controlling the target switching transistor according to the preset control waveform in the coordinated power supply state.

[0014] For example, in addition to the voltage ramp-up to ensure the wake-up effect and protect the rechargeable backup battery, the entire wake-up process also monitors the current during the entire wake-up process. When it is found that normal wake-up cannot be performed, other special methods will be used for wake-up control to achieve the wake-up of functional modules with large power requirements without exceeding the power provided by the rechargeable backup battery, thus ensuring the overall wake-up effect.

[0015] In one embodiment, the step of driving and controlling the target switching transistor according to a preset control waveform includes: The pulse width change step size of the function module to be woken up is determined in the preset pulse width change table, and the preset control waveform is sequentially increased according to the pulse width change step size. The target switching transistor is driven and controlled according to the preset control waveform after each increment.

[0016] For example, in the wake-up process with voltage ramping, different functional modules can be incrementally woken up to adapt to the usage scenarios of the entire wake-up control method.

[0017] In addition, to achieve the above objectives, the present invention also provides an intelligent distribution station terminal, which includes a backup power supply, a main control unit, multiple functional modules and a switch array. The input terminal of each switch in the switch array is connected to the backup power supply, one switch is connected to the power supply terminal of one of the functional modules, and the control terminal of one switch is connected to the main control unit. The main control unit is used to execute the steps of the above-mentioned wake-up control method.

[0018] In one embodiment, the switch array includes: Multiple switching transistors are provided, with the input terminal of each switching transistor connected to the backup power supply, the output terminal of each switching transistor connected to the power supply terminal of one of the functional modules, and the control terminal of each switching transistor connected to the main control unit.

[0019] In one embodiment, the smart station terminal further includes: A current detection unit is disposed between the backup power supply and the functional module.

[0020] For example, the smart distribution terminal uses a switch array to sequentially wake up each functional module, avoiding the need for large currents to wake up simultaneously, thus improving the wake-up control effect of the smart distribution terminal. A current detection unit is also designed to ensure that the current value during the wake-up process does not exceed the maximum current provided by the rechargeable backup battery, thereby protecting the rechargeable backup battery.

[0021] This invention provides a wake-up control method applied to a smart distribution terminal. The smart distribution terminal includes a backup power supply, a main control unit, multiple functional modules, and a switch array. The input terminal of each switch in the switch array is connected to the backup power supply, one switch is connected to the power supply terminal of one functional module, and the control terminal of one switch is connected to the main control unit. A main control power supply control command is generated in response to a wake-up control command, and the backup power supply is controlled to power up and wake up the main control unit according to the main control command. When the main control unit is in a power-up and wake-up state, the wake-up priority of the modules in the functional modules is determined according to the main control unit, and the functional modules to be woken up are determined sequentially in the functional modules according to the module wake-up priority. For each functional module to be woken up, the target switch corresponding to the functional module to be woken up is determined. The target switch is driven and controlled according to a preset control waveform, wherein the preset control waveform includes a control waveform with an increasing duty cycle. When the target switch is driven and controlled according to the preset control waveform, the voltage of the electrolytic capacitor in the functional module to be woken up increases in a ramp manner.

[0022] When a smart distribution terminal needs to be woken up, a main control power supply control command is generated in response to the wake-up control command. Based on this command, the main control unit is powered on and woken up. After the main control unit is woken up, the wake-up priority of the functional modules is determined by the main control unit. Based on this priority, the functional modules to be woken up are sequentially identified. For each module to be woken up, a target switch is identified. The target switch is then driven according to a preset control waveform. This avoids the problem in existing technologies where, as the load within the smart distribution terminal increases, the rechargeable backup battery cannot simultaneously power all loads. This wake-up control method, after initially waking up the main control unit, sequentially wakes up the remaining functional modules according to priority, avoiding the need for large currents during simultaneous wake-up and thus improving the wake-up control effect of the smart distribution terminal. Furthermore, a slowly increasing wake-up waveform with an increasing duty cycle further avoids a surge in load voltage demand, further enhancing the wake-up control effect of the smart distribution terminal. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the wake-up control device structure of the hardware operating environment involved in the embodiments of the present invention; Figure 2 This is a schematic flowchart of the first embodiment of the wake-up control method of the present invention; Figure 3 This is a schematic diagram of a frame of the intelligent distribution terminal of the present invention; Figure 4 This is a schematic diagram of the overall framework of the intelligent distribution terminal of the present invention; Figure 5 This is a schematic diagram of the main control unit within the intelligent distribution terminal of the present invention.

[0025] Explanation of icon numbers: 10. Backup power supply; 20. Main control unit; 30. Functional module; 40. Switch array; 50. Current detection unit; 60. Rechargeable backup battery management unit; 70. Discharge switch; 0001. Communication bus; 0002. Acquisition interface; 0003. Processor; 0004. Processing interface; 0005. Memory.

[0026] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that if any directional indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of the present invention, the directional indication is only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). When the specific posture changes, the directional indication also changes accordingly.

[0029] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0030] Reference Figure 1 , Figure 1 This is a schematic diagram of the wake-up control device structure of the hardware operating environment involved in the embodiment of the present invention.

[0031] like Figure 1As shown, the wake-up control device may include: a processor 0003, such as a central processing unit (CPU), a communication bus 0001, an acquisition interface 0002, a processing interface 0004, and a memory 0005. The communication bus 0001 is used to establish communication between these components. The acquisition interface 0002 may include an information acquisition device or an acquisition unit such as a computer; optionally, the acquisition interface 0002 may also include a standard wired interface or a wireless interface. The processing interface 0004 may optionally include a standard wired interface or a wireless interface. The memory 0005 may be a high-speed random access memory (RAM) or a stable non-volatile memory (NVM), such as a disk storage device. Optionally, the memory 0005 may also be a storage device independent of the aforementioned processor 0003.

[0032] Those skilled in the art will understand that Figure 1 The structure shown does not constitute a limitation on the wake-up control device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0033] like Figure 1 As shown, the memory 0005, which serves as a computer storage medium, may include an operating system, an acquisition interface module, a processing interface module, and a wake-up control program.

[0034] exist Figure 1 In the wake-up control device shown, the communication bus 0001 is mainly used to realize the connection and communication between components; the acquisition interface 0002 is mainly used to connect to the backend server and communicate data with the backend server; the processing interface 0004 is mainly used to connect to the deployment end (user end) and communicate data with the deployment end; the processor 0003 and the memory 0005 in the wake-up control device of the present invention can be set in the wake-up control device. The wake-up control device calls the wake-up control program stored in the memory 0005 through the processor 0003 and executes the wake-up control method provided in the embodiment of the present invention.

[0035] Based on the above hardware structure, an embodiment of the wake-up control method of the present invention is proposed.

[0036] In one embodiment of the present invention, such as Figure 2 As shown, Figure 2This is a flowchart illustrating the first embodiment of the wake-up control method of the present invention. The wake-up control method is applied to a smart distribution terminal. The smart distribution terminal includes a backup power supply, a main control unit, multiple functional modules, and a switch array. The input terminal of each switch in the switch array is connected to the backup power supply, one switch is connected to the power supply terminal of one functional module, and the control terminal of one switch is connected to the main control unit. The wake-up control method includes the following steps: Step S10: In response to the wake-up control command, a main control power supply control command is generated, and the backup power supply is controlled to power the main control unit to wake it up according to the main control power supply control command; For example, with the continuous development of power-consuming terminals such as smart distribution area terminals, there are at least three challenges to the wake-up control method of smart distribution area terminals under backup power supply: First, the load of smart distribution area terminals is constantly increasing, leading to a rise in the power consumption of core processors, such as the widespread adoption of multi-core MCUs (Microcontroller Units) and high-precision metering units; the increase in extended function modules, such as 4G / 5G communication, local dual-mode, branch monitoring, etc. These changes lead to an increase in static load, ultimately causing the rechargeable backup battery to be unable to simultaneously meet the power needs of all loads starting up at the same time. Second, there is the impact of instantaneous current surges. Because the power input terminals of extended modules generally add 220μF~1000μF electrolytic capacitors to smooth power ripple, at the moment of button wake-up, the capacitor charging current and the module startup current are superimposed, forming a large instantaneous current surge. However, the capacity of rechargeable backup batteries is limited, and the maximum output current is limited (generally ≤3C, 3C=2250mA), which cannot withstand the instantaneous current of multiple modules starting up simultaneously, causing the battery voltage to drop sharply and triggering overcurrent protection, ultimately causing the button wake-up process to be interrupted and the terminal startup to fail. Furthermore, the above problems are particularly prominent in low-temperature environments (where battery activity decreases and output current drops by 30%–50%) or when the battery is aging (internal resistance increases to over 200 mΩ).

[0037] In this embodiment, based on the above-mentioned wake-up problem, a new wake-up control method is proposed. This wake-up control method is applicable to power-consuming terminals such as smart distribution area terminals. That is, all power-consuming terminals that need to be woken up under backup power supply conditions, and whose rechargeable backup battery cannot simultaneously power all loads for simultaneous startup, can use the wake-up control method of this application. This application only uses a smart distribution area terminal as an example for illustration. For example, refer to... Figure 3 , Figure 3This is a schematic diagram of the framework of the intelligent distribution terminal of the present invention. The intelligent distribution terminal includes a backup power supply 10, a main control unit 20, and multiple functional modules 30. Specifically, the components of the entire intelligent distribution terminal that require the backup power supply 10 to wake up include the main control unit 20 and the multiple functional modules 30. If the backup power supply 10 is used directly to wake up both the main control unit 20 and the multiple functional modules 30 simultaneously, there will be a problem that the power supply 10 (mainly the internal rechargeable backup battery) may not be sufficient to power both the main control unit 20 and the multiple functional modules 30 simultaneously. Further details can be found in... Figure 4 , Figure 4 This is a schematic diagram of the overall framework of the intelligent distribution terminal of the present invention. The intelligent distribution terminal also includes a switch array. The input terminal of each switch in the switch array is connected to the backup power supply. One switch is connected to the power supply terminal of a functional module, and the control terminal of one switch is connected to the main control unit. For example, in this embodiment, the switch used can be a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) with built-in low on-resistance to reduce losses and support overcurrent protection. The enable pin of the MOSFET is controlled by the PWM waveform output by the CPU, thereby controlling the current magnitude by controlling the conduction degree of the MOSFET. Exemplarily, a separate rechargeable backup battery management unit 60 is used to control the power supply of the entire backup power supply 10. The rechargeable backup battery management unit 60 is used to control the backup power supply 10 to supply power to the main control unit 20. When the main control unit 20 is in the power-on wake-up state, subsequent time-sharing wake-up control is completed by communicating with the main control unit 20 via USB, thereby ensuring the wake-up control effect of the intelligent distribution terminal.

[0038] Therefore, the entire wake-up control process generates a main control power supply control command in response to the wake-up control command, and then controls the backup power supply to power and wake up the main control unit according to the main control power supply control command. The main control power supply control command refers to the control command that supplies power to the main control unit alone, while the wake-up control command refers to the control command that requires powering up and waking up the smart area terminal. Therefore, power is prioritized to the main control unit. Then, based on the main control unit, power supply control is performed on the functional modules within the entire smart area terminal to avoid the problem that the backup power supply cannot simultaneously meet the needs of the main control unit and multiple functional modules to start up at the same time, thereby ensuring the wake-up effect of the entire smart area terminal.

[0039] It is worth noting that the wake-up control command can be user-inputted. For example, when the smart station terminal is in a powered-off state, the user can press and hold the "cancel" button for 3 seconds to trigger the hardware discharge switch to open, and the backup power supply (mainly a rechargeable backup battery) can officially power the smart station terminal to wake it up. Alternatively, it can be generated at a set time; this is not limited here. Simultaneously, the power supply controller that controls the backup power supply to the main control unit is located within the main control unit; that is, the entire method revolves around a large main control unit. Of course, the power supply controller that controls the power supply to the main control unit can also be an independent controller. Furthermore, the wake-up control command first informs the power supply controller that power is needed to the main control unit. After waking up the main control unit, the main control unit is used for subsequent power supply control. However, ultimately, power supply still requires information interaction between the main control unit and the power supply controller. Therefore, this application integrates the power supply controller and the main control unit for higher-level description.

[0040] Step S20: When the main control unit is in the power-on wake-up state, the module wake-up priority in the functional module is determined according to the main control unit, and the functional modules to be woken up are determined in the functional modules in turn according to the module wake-up priority. For each functional module to be woken up, the target switch corresponding to the functional module to be woken up is determined. In this embodiment, after the main control unit is powered on and woken up, it becomes the control center for the entire power-on wake-up process, thereby controlling the power supply to the remaining functional modules. That is, after the main control unit is powered on and woken up, the CPU (Central Processing Unit) and other control centers within it immediately take over the wake-up control of the functional modules, while simultaneously acquiring initialization information such as battery and interface settings to ensure that the hardware resources required for the subsequent startup of other functional modules are ready. For example, the initialization information includes disabling the direct-connect mode of the hardware discharge switch, starting the backup power discharge management unit, synchronizing battery status (charge, temperature, etc.) with the CPU via the USB (Universal Serial Bus) protocol, initializing the current sampling value of the ADC (Analog-to-Digital Converter), generating the PWM (Pulse Width Modulation) waveform for the timer, and the status of the GPIO (General-Purpose Input / Output) ports. It is worth noting that the main control unit starts up directly with a 100% duty cycle, supplying power to the smart station terminal (multi-core CPU, metering unit, display module) to ensure the stability of basic functions (such as button response and status display). After the main control unit starts up, there is a 50ms delay (configurable) to allow the power ripple to subside before the subsequent power supply wake-up process begins, avoiding interference with the startup of subsequent expansion modules.

[0041] Furthermore, when entering the state of wake-up control using the main control unit, the main control unit determines the pre-defined wake-up priorities for multiple functional modules. Then, based on the module wake-up priorities and preset control waveforms, the functional modules are powered on and woken up sequentially. The module wake-up priority refers to the priority of powering on and waking up multiple functional modules, and the preset control waveform refers to the control waveform that controls the power supply to the functional modules. Generally, the current to the functional modules is gradually increased through the control waveform to avoid startup failure caused by excessive instantaneous current. Simultaneously, the module wake-up priority design allows for staggered startup based on module priority, such as core processor → critical communication module → extended functional module, prioritizing the power-on of the core system and avoiding the superposition of current from multiple modules, thereby ensuring the wake-up control effect of the intelligent distribution terminal.

[0042] Step S30: Drive the target switch transistor according to the preset control waveform. The preset control waveform includes a control waveform with an increasing duty cycle. When the target switch transistor is driven according to the preset control waveform, the voltage of the electrolytic capacitor in the function module to be woken up increases in a ramp manner.

[0043] In this embodiment, during the sequential wake-up of other functional modules, the functional modules to be woken up are determined sequentially based on their wake-up priorities. Then, the functional module that is currently not woken up and has the highest priority is powered on for wake-up. For example, the functional module priorities can be predefined as follows: First priority: Remote communication module (4G / 5G, maintaining data backhaul); Second priority: Local communication module (high-speed carrier / low-power wireless, ensuring near-field interaction); Third priority: Other extended modules (branch monitoring, power quality analysis, etc.). Based on the defined module wake-up priorities, the functional modules that need to be woken up are determined, and the target switching transistors corresponding to each functional module are further identified. Finally, a preset control waveform is used to drive and control the target switching transistors to achieve wake-up control of the functional modules to be woken up. This time-division multiple-function-module wake-up avoids the problem of requiring a large amount of power to start and wake up multiple functional modules at the same time (otherwise, wake-up failures may occur), ensuring the wake-up control effect of the smart distribution terminal and also avoiding the impact of large power output on the lifespan of the backup power supply. Furthermore, the entire wake-up control process uses a control waveform with an increasing duty cycle for the target switching transistor, which can achieve a ramp-up of the voltage of the electrolytic capacitor in the functional module to be woken up, thereby further reducing the demand for the power output of the backup power supply, effectively extending the service life of the backup power supply, and accurately and efficiently powering up the functional module.

[0044] This embodiment provides a wake-up control method applied to a smart distribution terminal. The smart distribution terminal includes a backup power supply, a main control unit, multiple functional modules, and a switch array. The input terminal of each switch in the switch array is connected to the backup power supply, one switch is connected to the power supply terminal of one functional module, and the control terminal of one switch is connected to the main control unit. A main control power supply control command is generated in response to a wake-up control command, and the backup power supply is controlled to power up and wake up the main control unit according to the main control command. When the main control unit is in the power-up and wake-up state, the wake-up priority of the modules in the functional modules is determined according to the main control unit, and the functional modules to be woken up are determined sequentially in the functional modules according to the module wake-up priority. For each functional module to be woken up, the target switch corresponding to the functional module to be woken up is determined. The target switch is driven and controlled according to a preset control waveform, wherein the preset control waveform includes a control waveform with an increasing duty cycle. When the target switch is driven and controlled according to the preset control waveform, the voltage of the electrolytic capacitor in the functional module to be woken up increases in a ramp manner. When a smart distribution terminal needs to be woken up, a main control power supply control command is generated in response to the wake-up control command, and then the main control unit is powered up based on the main control power supply control command. After the main control unit is woken up, the module wake-up priority of the functional modules is determined according to the main control unit. Then, the functional modules to be woken up are determined sequentially in the functional modules according to the module wake-up priority. For each functional module to be woken up, the target switch corresponding to the functional module to be woken up is determined; and the target switch is driven and controlled according to the preset control waveform. This avoids the problem in the existing technology where, as the load in the smart distribution terminal continues to increase, if the simultaneous wake-up method is still used, the power of the rechargeable backup battery cannot meet the start-up of all loads at the same time. This wake-up control method can wake up the remaining functional modules sequentially according to priority after the main control unit is initially woken up, so as to avoid the phenomenon of simultaneous wake-up requiring a large current, thereby improving the wake-up control effect of the smart distribution terminal. Furthermore, the wake-up is slowly increased by using a control waveform with an increasing duty cycle, which further avoids the problem of a sudden increase in load voltage demand, thereby further improving the wake-up control effect of the smart distribution terminal.

[0045] In one embodiment, based on the first embodiment of the wake-up control method, a second embodiment of this application is proposed. The backup power supply includes a supercapacitor and a rechargeable backup battery. The input terminal of the target switch is connected to the supercapacitor and the rechargeable backup battery. Before the step of driving the target switch according to a preset control waveform, the following steps are included: Step S301: When the output energy value of the supercapacitor is less than the preset energy threshold, the supercapacitor is disconnected from the input terminal of the target switch tube, and the rechargeable backup battery is connected to the input terminal of the target switch tube. Step S302: When the output energy value of the supercapacitor is greater than or equal to the preset energy threshold, control the supercapacitor to establish a connection with the input terminal of the target switching transistor, and the rechargeable backup battery to establish a connection with the input terminal of the target switching transistor.

[0046] In this embodiment, in addition to the voltage ramp-up charging control of the module to be woken up, a supercapacitor is also used for charging control. This leverages the supercapacitor's ability to provide a large instantaneous current to further mitigate the impact of high startup energy on the rechargeable backup battery. The control principle is as follows: at startup, both the supercapacitor and the rechargeable backup battery simultaneously charge the module to be woken up. This increases the charging speed and prevents the energy required at startup from exceeding the rechargeable backup battery's capacity, thus avoiding wake-up failure. After wake-up, when the power supply stabilizes, the system switches to the rechargeable backup battery, thereby reducing the instantaneous load on the rechargeable backup battery during startup. For example, the stability of the power supply after wake-up can be determined by detecting the output energy value of the supercapacitor. When the output power value is less than the preset power threshold, this is determined to be a defined stable state. At this point, the supercapacitor is disconnected from the input of the target switch, while the rechargeable backup battery is connected to the input of the target switch. Conversely, if the output power is greater than the preset threshold, the supercapacitor remains connected to the target switch while the rechargeable backup battery is disconnected, allowing the supercapacitor to continue supplying power. The preset power threshold refers to a defined power threshold, where the power can be either voltage or current. The advantage here is that if the module to be woken up requires A units of power, but the rechargeable backup battery can only provide A-5 units, then at least 5 units of power must be output from the supercapacitor. This avoids the problem of wake-up failure due to the required power exceeding the rechargeable backup battery's capacity, and also prevents damage to the rechargeable backup battery. For example, each time a new module to be woken up is initiated, both the supercapacitor and the rechargeable backup battery are simultaneously activated to ensure effective initial wake-up. The supercapacitor serves as the first priority power source, and its low internal resistance helps to cope with instantaneous high current demands. During the initial stage of button wake-up or the initial stage of wake-up of each function module to be woken up, the supercapacitor can provide the main instantaneous current, while the rechargeable backup battery serves as the second priority power source. After PWM soft start, the load is smoothly transferred to the rechargeable backup battery to further protect the rechargeable backup battery and ensure the wake-up effect.

[0047] In one embodiment, the step of driving and controlling the target switching transistor according to a preset control waveform includes: Step S31: Determine the pulse width change step size of the function module to be woken up in the preset pulse width change table, and increment the preset control waveform sequentially according to the pulse width change step size. Step S32: Drive and control the target switching transistor according to the preset control waveform after each increment.

[0048] In this embodiment, the control of the target switching transistor using a preset control waveform is mainly based on the PWM waveform output by the main control unit, which has a settable output frequency and a duty cycle resolution of 0.1%. This PWM waveform is then used to drive and control the target switching transistor, achieving a ramp-up voltage increase in the electrolytic capacitor within the module to be woken up. For example, for the module to be woken up, the preset control waveform increments (duty cycle 0%→100%) within the first 200ms to achieve smooth voltage ramp control. After 200ms, the duty cycle is locked at 100%, fully activating module A. Therefore, the voltage rise rate (dV / dt) of the module to be woken up is controlled by a ramp-up duty cycle adjustment (linearly increasing from 0% to 100%), enabling pre-charging of the electrolytic capacitor and soft-start of the module. This limits the instantaneous current peak to within the battery's tolerance threshold, thus completely resolving the button wake-up failure problem caused by instantaneous current overload, improving the stability and energy efficiency of the terminal power supply, reducing frequent high-current surges to the rechargeable backup battery during startup, and effectively extending battery life. Furthermore, since the control primarily addresses the pre-charging effect of the electrolytic capacitor, the pulse width variation step size of the functional module to be woken up can be determined in the preset pulse width variation table. Then, the preset control waveform is sequentially incremented according to the pulse width variation step size, so that each incremented preset control waveform drives the target switching transistor. The preset pulse width variation table refers to the pre-defined step size of the waveform duty cycle change during pre-charging of each functional module. The pulse width variation step size refers to the duty cycle value of each change. For example, the duty cycle of D1 changes in the first D seconds, and the duty cycle of D2 changes in the next D seconds, completing the duty cycle change of D1+D2 within 2D seconds. This specific variation step size and frequency can be adaptively set according to the actual size of the electrolytic capacitor to ensure precise pre-charging control of each functional module to be woken up, guaranteeing the wake-up effect of the functional module.

[0049] In the first embodiment, based on the first and second embodiments of the wake-up control method, a third embodiment of this application is proposed. The intelligent distribution terminal further includes a current detection unit, which is disposed between the backup power supply and the functional module. After the step of driving and controlling the target switching transistor according to a preset control waveform, the following is included: Step S311: Obtain the first real-time current value collected by the current detection unit, wherein the first real-time current value includes the current value collected after each change of the preset control waveform; Step S312: When the first real-time current value is greater than the first current threshold, determine the target control waveform for driving the target switch at the current moment, and drive the target switch according to the target control waveform.

[0050] In this embodiment, the intelligent distribution terminal also includes a current detection unit, which is located between the backup power supply and the switch array. For example, the current detection unit can be a milliohm-level precision sampling resistor connected in series between the backup power supply and the switch array. A high common-mode rejection ratio operational amplifier is used to amplify the voltage difference across the sampling resistor. (Refer to...) Figure 4 The sampling results are then output to the ADC pin of the rechargeable backup battery management unit 60. The entire pre-charging process can then be controlled using the first real-time current value collected by the current detection unit. This first real-time current value includes the current value collected after each change in the preset control waveform. When the first real-time current value is determined to be greater than a first current threshold, the target control waveform for driving the target switch is determined, and the target switch is driven based on this target control waveform. Specifically, when the first real-time current value exceeds the first current threshold (e.g., 80% of the maximum continuous current of the rechargeable backup battery), the rise rate of the PWM duty cycle is reduced, or the current duty cycle is maintained for continued control. The target control waveform refers to the control waveform controlling the target switch at the current moment, primarily its duty cycle. Control of the target switch is based on this duty cycle to prevent continuous current increases that could damage the rechargeable backup battery or cause wake-up failures. It is worth noting that this is typically a scenario where the supercapacitor exits pre-charging, and there may be a continuous rise in the rechargeable backup battery voltage, generally due to the continuously increasing duty cycle. However, before the duty cycle drops below 50%, the supercapacitor will exit pre-charging due to stable pre-charging. Later, when the duty cycle exceeds 50%, the rechargeable backup battery's energy will continuously increase. Of course, throughout this process, the supercapacitor plays no role; the continuous increase in the rechargeable backup battery's energy is only affected by the duty cycle exceeding 50%. At this point, to protect the rechargeable backup battery and ensure effective wake-up, a current control process needs to be added.

[0051] Furthermore, after the step of driving and controlling the target switching transistor based on the target control waveform, the process includes: Step S321: Obtain the second real-time current value collected by the current detection unit, wherein the second real-time current value includes the current value collected under the target control waveform drive control; Step S322: When the second real-time current value is greater than the second current threshold, the target switch is stopped according to the preset stop drive instruction (i.e., the instruction to stop driving the target switch to turn on, such as PWM directly stopping the output), wherein the second current threshold is greater than the first current threshold.

[0052] In this embodiment, when using the target control waveform to control the target switching transistor, the real-time current value will continue to be monitored to ensure the accuracy of the wake-up. When it is determined that the second real-time current value collected under the target control waveform exceeds the second current threshold (such as the maximum peak current of a rechargeable backup battery), all PWM outputs are immediately shut down, putting the system into a protection state and performing real-time current feedback and protection. For example, the control of the entire current feedback can be designed as shown in Table 1:

[0053] Table 1 The entire current detection and control process constructs a complete soft-start system, which can effectively reduce the instantaneous inrush current when the smart distribution terminal is woken up by the button by more than 80%, ensuring that the success rate of button wake-up is effectively improved under the limited power supply capacity of the backup battery, while also extending the service life of the rechargeable backup battery.

[0054] In one embodiment, based on the first, second, and third embodiments of the wake-up control method, a fourth embodiment of this application is proposed, which, after the step of obtaining the second real-time current value collected by the current detection unit, includes: Step a: When the second real-time current value is less than or equal to the second current threshold and the driving duration of the target control waveform reaches the preset driving duration threshold, drive control is performed on the target switching transistor according to the preset maximum duty cycle control waveform.

[0055] In this embodiment, if subsequent detection finds that the second real-time current value is less than or equal to the second current threshold, and the driving duration of the target control waveform reaches the preset driving duration threshold, the target switch is driven and controlled according to the preset maximum duty cycle control waveform. For example, when the driving duration of the target control waveform reaches 200ms, the target switch is driven and controlled using the preset maximum duty cycle control waveform. At this time, the preset driving duration threshold is designed to be 200ms, and the preset maximum duty cycle control waveform is a duty cycle locked at 100%. In this way, the stability of the entire wake-up control operation can be ensured by current detection when the current is too high, while ensuring the service life of the rechargeable backup battery.

[0056] Furthermore, after the step of stopping the target switching transistor according to the preset stop drive command, the process includes: Step b: When there are multiple functional modules in the functional module to be woken up, for each functional module to be woken up, the steps of driving and controlling the target switching transistor according to the preset control waveform are executed in sequence, and / or; Step c involves controlling the supercapacitor in the backup power supply to be in a cooperative power supply state in response to the cooperative power supply control command, so as to perform the step of driving and controlling the target switching transistor according to the preset control waveform in the cooperative power supply state.

[0057] In this embodiment, in addition to the wake-up failure control methods in Table 1 above, a new wake-up control method is provided. After stopping the target switch according to the preset stop drive command, when it is determined that there are multiple functional modules to be woken up, for each functional module to be woken up, the step of driving the target switch according to the preset control waveform is executed sequentially, thereby reducing the total current during wake-up and ensuring normal wake-up. Of course, a collaborative power supply control command can also be triggered directly when the preset stop drive command is generated, and then the supercapacitor in the backup power supply is controlled to be in a collaborative power supply state based on the collaborative power supply control command. In the collaborative power supply state, the step of driving the target switch according to the preset control waveform can be executed. Here, the collaborative power supply control command refers to the command to introduce the supercapacitor to simultaneously supply power to the functional module to be woken up. The collaborative power supply state refers to the state in which the supercapacitor and the rechargeable backup battery simultaneously supply power to the functional module to be woken up through the target switch, thereby avoiding the situation where the current required by the rechargeable backup battery exceeds its own upper limit of current, so as to ensure the wake-up effect of the functional module to be woken up.

[0058] Corresponding to the above embodiments, the present invention also proposes an intelligent transformer station terminal.

[0059] The intelligent distribution terminal of this invention includes: a backup power supply, a main control unit, and a switch array. The input terminal of each switch in the switch array is connected to the backup power supply, one switch is connected to the power supply terminal of a functional module, and the control terminal of one switch is connected to the main control unit. The main control unit is used to execute the steps of the above wake-up control method.

[0060] The main control unit, based on the above connections, can control the smart distribution terminal and connect to the backup power supply and functional modules to control the backup power supply to wake up the functional modules. The main control unit also executes the steps of the wake-up control method described above. When the smart distribution terminal needs to be woken up, a main control power supply control command is generated in response to the wake-up control command, and then the main control unit is powered on and woken up based on the main control power supply control command. After the main control unit is woken up, the wake-up priority of the functional modules is determined by the main control unit, and then the functional modules are powered on and woken up sequentially according to the module wake-up priority and a preset control waveform. This avoids the phenomenon in existing technologies where, as the load within the smart distribution terminal increases, the rechargeable backup battery cannot simultaneously meet the startup requirements of all loads if a simultaneous wake-up method is still used. This wake-up control method, after initially waking up the main control unit, wakes up the remaining functional modules sequentially according to priority, avoiding the need for a large current for simultaneous wake-up, thereby improving the wake-up control effect of the smart distribution terminal.

[0061] In one embodiment, the switch array 40 includes: Multiple switching transistors are provided. The input terminals of the switching transistors are connected to the backup power supply 10, the output terminals of one switching transistor are connected to the power supply terminals of a functional module 30, and the control terminals of the switching transistors are connected to the main control unit 20.

[0062] Furthermore, the intelligent distribution station terminal also includes: The current detection unit 50 is located between the backup power supply 10 and the functional module 30.

[0063] For example, the intelligent distribution terminal also includes a switch array 40 that individually powers and wakes up each functional module 30. Each switch in the switch array 40 is individually controlled by the main control unit 20, thereby enabling time-sharing power supply for each functional module 30. Because the output current of the backup power supply 10 needs to be monitored during the wake-up process, a current detection unit 50 located between the backup power supply 10 and the switch array 40 is used to monitor the power output. This avoids the problem of continuous current increase during the wake-up process causing wake-up failure or damage to the backup power supply 10, thus ensuring the final wake-up effect of the functional module 30.

[0064] The present invention also provides a main control unit, as described above. Figure 5 , Figure 5 This is a schematic diagram of the main control unit within the intelligent distribution terminal of the present invention. The main control unit includes: The wake-up response module A01 is used to generate a main control power supply control command in response to the wake-up control command, and control the backup power supply to power up and wake up the main control unit according to the main control power supply control command; Priority control module A02, when the main control unit is in the power-on wake-up state, determines the module wake-up priority in the functional module according to the main control unit, and determines the functional modules to be woken up in the functional module in turn according to the module wake-up priority. For each functional module to be woken up, it determines the target switch corresponding to the functional module to be woken up. The control wake-up module A03 is used to drive and control the target switching transistor according to a preset control waveform. The preset control waveform includes a control waveform with an increasing duty cycle. When the target switching transistor is driven and controlled according to the preset control waveform, the voltage of the electrolytic capacitor in the wake-up module increases in a ramp manner.

[0065] Optionally, the wake-up control module A03 is also used for: When the output energy value of the supercapacitor is less than the preset energy threshold, the supercapacitor is disconnected from the input terminal of the target switch, and the rechargeable backup battery is connected to the input terminal of the target switch. When the output energy value of the supercapacitor is greater than or equal to the preset energy threshold, the supercapacitor is connected to the input terminal of the target switching transistor, and the rechargeable backup battery is connected to the input terminal of the target switching transistor.

[0066] Optionally, the wake-up control module A03 is also used for: The first real-time current value collected by the current detection unit is obtained, wherein the first real-time current value includes the current value collected after each change of the preset control waveform; When the first real-time current value is greater than the first current threshold, the target control waveform for driving the target switch is determined at the current moment, and the target switch is driven and controlled according to the target control waveform.

[0067] Optionally, the wake-up control module A03 is also used for: Acquire the second real-time current value collected by the current detection unit, wherein the second real-time current value includes the current value collected under the target control waveform drive control; When the second real-time current value is greater than the second current threshold, the target switch is stopped from driving according to the preset stop driving command, wherein the second current threshold is greater than the first current threshold.

[0068] Optionally, the wake-up control module A03 is also used for: When the second real-time current value is less than or equal to the second current threshold, and the driving duration of the target control waveform reaches the preset driving duration threshold, the target switching transistor is driven and controlled according to the preset maximum duty cycle control waveform.

[0069] Optionally, the wake-up control module A03 is also used for: When there are multiple functional modules in the functional module to be woken up, for each functional module to be woken up, the steps of driving and controlling the target switching transistor according to the preset control waveform are executed in sequence, and / or; In response to the coordinated power supply control command, the supercapacitor in the backup power supply is controlled to be in a coordinated power supply state, so as to perform the step of driving and controlling the target switching transistor according to the preset control waveform in the coordinated power supply state.

[0070] Optionally, the wake-up control module A03 is also used for: Determine the pulse width change step size of the function module to be woken up in the preset pulse width change table, and increment the preset control waveform sequentially according to the pulse width change step size; The target switching transistor is driven and controlled according to the preset control waveform after each increment.

[0071] The methods executed by the above-mentioned program modules can be referred to in the various embodiments of the wake-up control related methods of the present invention, and will not be repeated here.

[0072] The present invention also provides a storage medium.

[0073] The storage medium of the present invention stores a wake-up control program, which, when executed by a processor, implements the steps of the wake-up control method described above.

[0074] The method implemented when the wake-up control program running on the processor is executed can be referred to in various embodiments of the wake-up control method of the present invention, and will not be repeated here.

[0075] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0076] The sequence numbers of the above embodiments of the present invention are merely for description and do not represent the superiority or inferiority of the embodiments.

[0077] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A wake-up control method, characterized in that, The wake-up control method is applied to a smart distribution terminal. The smart distribution terminal includes a backup power supply, a main control unit, multiple functional modules, and a switch array. The input terminal of each switch in the switch array is connected to the backup power supply, one switch is connected to the power supply terminal of one of the functional modules, and the control terminal of one switch is connected to the main control unit. The wake-up control method includes the following steps: In response to the wake-up control command, a main control power supply control command is generated, and the backup power supply is controlled to power and wake up the main control unit according to the main control power supply control command; When the main control unit is in the power-on wake-up state, the wake-up priority of the module in the functional module is determined according to the main control unit, and the functional modules to be woken up are determined sequentially in the functional module according to the module wake-up priority. For each functional module to be woken up, the target switching transistor corresponding to the functional module to be woken up is determined. The target switching transistor is driven and controlled according to a preset control waveform, wherein the preset control waveform includes a control waveform with an increasing duty cycle. When the target switching transistor is driven and controlled according to the preset control waveform, the voltage of the electrolytic capacitor in the functional module to be woken up increases in a ramp manner. The intelligent distribution terminal also includes a current detection unit, which is located between the backup power supply and the functional module. After the step of driving and controlling the target switching transistor according to the preset control waveform, the following steps are included: The first real-time current value collected by the current detection unit is obtained, wherein the first real-time current value includes the current value collected after each change of the preset control waveform; when the first real-time current value is greater than the first current threshold, the target control waveform for driving the target switch is determined at the current moment, and the target switch is driven according to the target control waveform. The second real-time current value collected by the current detection unit is obtained, wherein the second real-time current value includes the current value collected under the target control waveform drive control; when the second real-time current value is greater than the second current threshold, the target switching transistor is stopped from driving according to a preset stop drive command, wherein the second current threshold is greater than the first current threshold.

2. The wake-up control method as described in claim 1, characterized in that, The backup power supply includes a supercapacitor and a rechargeable backup battery. The input terminal of the target switching transistor is connected to the supercapacitor and the rechargeable backup battery. Before the step of driving and controlling the target switching transistor according to a preset control waveform, the following steps are included: When the output energy value of the supercapacitor is less than a preset energy threshold, the supercapacitor is disconnected from the input terminal of the target switch, and the rechargeable backup battery is connected to the input terminal of the target switch. When the output energy value of the supercapacitor is greater than or equal to a preset energy threshold, the supercapacitor is connected to the input terminal of the target switch, and the rechargeable backup battery is connected to the input terminal of the target switch.

3. The wake-up control method as described in claim 1, characterized in that, After the step of obtaining the second real-time current value collected by the current detection unit, the following steps are included: When the second real-time current value is less than or equal to the second current threshold, and the driving duration of the target control waveform reaches the preset driving duration threshold, the target switching transistor is driven and controlled according to the preset maximum duty cycle control waveform.

4. The wake-up control method as described in claim 1, characterized in that, After the step of stopping the target switch according to the preset stop drive command, the following steps are included: When there are multiple functional modules in the functional modules to be woken up, for each functional module to be woken up, the steps of driving and controlling the target switching transistor according to the preset control waveform are executed sequentially, and / or; In response to the coordinated power supply control command, the supercapacitor in the backup power supply is controlled to be in a coordinated power supply state, so as to perform the step of driving and controlling the target switching transistor according to the preset control waveform in the coordinated power supply state.

5. The wake-up control method according to any one of claims 1 to 4, characterized in that, The step of driving and controlling the target switching transistor according to a preset control waveform includes: The pulse width change step size of the function module to be woken up is determined in the preset pulse width change table, and the preset control waveform is sequentially increased according to the pulse width change step size. The target switching transistor is driven and controlled according to the preset control waveform after each increment.

6. A smart distribution station terminal, characterized in that, The intelligent distribution terminal includes a backup power supply, a main control unit, multiple functional modules, and a switch array. The input terminal of each switch in the switch array is connected to the backup power supply, one switch is connected to the power supply terminal of one of the functional modules, and the control terminal of one switch is connected to the main control unit. The main control unit is used to execute the steps of the wake-up control method as described in any one of claims 1 to 5.

7. The intelligent distribution terminal as described in claim 6, characterized in that, The switch array includes: Multiple switching transistors are provided, with the input terminal of each switching transistor connected to the backup power supply, the output terminal of each switching transistor connected to the power supply terminal of one of the functional modules, and the control terminal of each switching transistor connected to the main control unit.

8. The intelligent distribution station terminal as described in claim 6, characterized in that, The intelligent distribution terminal also includes: A current detection unit is disposed between the backup power supply and the functional module.

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