Capacity measuring and calculating method and circuit applied to low-power-consumption Cat1 gateway lithium thionyl chloride battery

Abstract

The invention relates to a capacity measuring and calculating method and circuit applied to a low-power-consumption Cat1 gateway lithium thionyl chloride battery, and the method comprises the steps: collecting a sampling resistor voltage signal located on a lithium thionyl chloride battery power supply circuit according to a set frequency, amplifying the sampling resistor voltage signal, and recording the sampling resistor voltage signal as an amplified voltage signal; charging a reference capacitor in an integrating circuit by using the amplified voltage signal and recording the voltage change of the reference capacitor to obtain a voltage change curve section; calculating the power consumption of the acquisition period based on the voltage change curve segment, and recording the power consumption as single-time power consumption; and carrying out difference calculation to obtain the residual electric quantity of the low-power-consumption Cat1 gateway lithium thionyl chloride battery. According to the capacity measuring and calculating method and circuit applied to the low-power-consumption Cat1 gateway lithium thionyl chloride battery disclosed by the invention, electric quantity detection is carried out in a mode of converting non-periodic high-pulse radio-frequency current into stable ramp voltage and carrying out rapid acquisition by combining impedance conversion, so that the accurate electric quantity of the lithium thionyl chloride battery is obtained.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of data processing, in particular to a capacity calculation method and circuit of a lithium sulfonyl chloride battery applied to a low-power Cat1 gateway. BACKGROUND

[0002] The lithium sulfonyl chloride battery is widely used in the low-power instrument industry due to its high capacity and long service life. The open circuit voltage of the battery is stable, and the open circuit voltage is always stable at 3.6V when the battery capacity is not complete. The remaining capacity of the battery has no corresponding relationship with the open circuit voltage.

[0003] The load voltage of the lithium sulfonyl chloride battery is also very stable, and the corresponding relationship between the load voltage and the remaining capacity of the battery is not obvious. The hysteresis characteristic of the lithium sulfonyl chloride battery interferes with the corresponding relationship between the load voltage and the capacity, so the open circuit voltage or the load voltage cannot be used to determine the remaining capacity of the battery.

[0004] The current general idea is to measure the current consumed by the load to count the use of the electric quantity. A known scheme is to detect the voltage across a sampling resistor at a certain time to count the current value. However, due to the different signal strengths of the base station, and the fact that the radio frequency current is a large amount of short-time and periodic pulse current, the actual effect of the single-chip microcomputer is very poor. SUMMARY

[0005] The application provides a capacity calculation method and circuit of a lithium sulfonyl chloride battery applied to a low-power Cat1 gateway, which converts the non-periodic high pulse radio frequency current into a stable ramp voltage and combines impedance conversion for fast acquisition to detect the electric quantity, so as to obtain the accurate electric quantity of the lithium sulfonyl chloride battery.

[0006] The above object of the application is achieved by the following technical scheme: In a first aspect, the application provides a capacity calculation method of a lithium sulfonyl chloride battery applied to a low-power Cat1 gateway, comprising: In response to a received or detected trigger signal, a sampling resistor voltage signal on a lithium sulfonyl chloride battery power supply circuit is collected at a set frequency, and the collection period of the sampling resistor voltage signal is a complete working period; The sampling resistor voltage signals in the same collection period are amplified to obtain an amplified voltage signal; The amplified voltage signal is used to charge a reference capacitor in an integration circuit and record the voltage change of the reference capacitor to obtain a voltage change curve segment; The power consumption of the collection period is calculated based on the voltage change curve segment, and is recorded as a single power consumption; The current power of the low-power Cat1 gateway lithium thionyl chloride battery is subtracted from the single power consumption to obtain the residual power of the low-power Cat1 gateway lithium thionyl chloride battery.

[0007] In a possible implementation manner of the first aspect, after the amplified voltage signal is obtained, the method further includes calibrating the amplified voltage signal, and a reference for the calibration is a number of missing peak points.

[0008] In a possible implementation manner of the first aspect, calibrating the amplified voltage signal includes: segmenting the amplified voltage signal in a time sequence, and the amplified voltage signals in a same segment have a same change trend in the time sequence; selecting two adjacent segments in the time sequence and generating peak points corresponding to two reference time periods; calculating a reference voltage change curve segment corresponding to the amplified voltage signal; calculating a difference value of the reference voltage change curve segment and the voltage change curve segment; adjusting a collection frequency of the sampling resistor voltage signal according to the difference value, and the difference value is positively correlated with the collection frequency.

[0009] In a possible implementation manner of the first aspect, the difference value is a peak point that exists only on the reference voltage change curve segment.

[0010] In a possible implementation manner of the first aspect, when the collection frequency of the sampling resistor voltage signal is adjusted, the method further includes adjusting the collection frequency of the sampling resistor voltage signal according to a change trend of the amplified voltage signal, and the change trend of the amplified voltage signal is positively correlated with the collection frequency of the sampling resistor voltage signal. The change trend of the amplified voltage signal includes a positive change trend and a negative change trend.

[0011] In a possible implementation manner of the first aspect, obtaining the voltage change curve segment includes: collecting a voltage value of the reference capacitor according to the periodic interruption signal to obtain a current voltage value; selecting, in a sequential sequence, a voltage value of one reference capacitor before the current voltage value and a voltage value of one reference capacitor after the current voltage value and calculating a middle value of the two voltage values; using the middle value as a collection voltage value corresponding to the periodic interruption signal; The collection voltage value participates in a process of obtaining a subsequent middle value.

[0012] In a possible implementation manner of the first aspect, when the sampling resistor voltage signal on the lithium thionyl chloride battery power supply circuit is collected at a set frequency, the method further includes identifying a voltage drop signal. When the voltage sag signal is identified, a high frequency is used to collect the voltage signal of the sampling resistor located on the lithium sulfonyl chloride battery power supply circuit; When the voltage signal collected by the high frequency has a steep falling edge, the steep falling edge is tracked until the steep falling edge disappears, and then a set frequency is used to collect the voltage signal of the sampling resistor located on the lithium sulfonyl chloride battery power supply circuit.

[0013] In a second aspect, the present application provides a capacity calculation circuit applied to a low-power Cat1 gateway lithium sulfonyl chloride battery, the capacity calculation circuit comprising: one or more memories for storing instructions; and one or more processors for invoking and running the instructions from the memories, to perform the method as described in the first aspect and any possible implementation manner of the first aspect.

[0014] In a third aspect, the present application provides a computer program product, comprising program instructions, when the program instructions are run by a computing device, the method as described in the first aspect and any possible implementation manner of the first aspect is performed.

[0015] In a fourth aspect, the present application provides a chip system, comprising a processor for implementing the functions involved in the above aspects, such as generating, receiving, sending, or processing the data and / or information involved in the above method.

[0016] The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0017] In a possible design, the chip system further includes a memory, the memory being configured to store necessary program instructions and data. The processor and the memory can be decoupled and arranged on different devices, and connected through a wired or wireless manner, or the processor and the memory can be coupled on the same device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a step flowchart of a capacity calculation method applied to a low-power Cat1 gateway lithium sulfonyl chloride battery provided by the present application.

[0019] Figure 2 is a structural schematic diagram of a circuit involved in a capacity calculation method provided by the present application.

[0020] Figure 3 is a principle schematic diagram of calculating the remaining capacity provided by the present application.

[0021] Figure 4 is a schematic diagram of the change process of the voltage signal of the sampling resistor provided by the present application.

[0022] Figure 5 is a schematic diagram of a change process of an ascending voltage signal provided by the present application.

[0023] Figure 6 is a schematic diagram of a low-frequency sampling resistance voltage signal provided by the present application.

[0024] Figure 7 is a schematic diagram of a high-frequency sampling resistance voltage signal provided by the present application.

[0025] Figure 8 is a schematic diagram of a resistance voltage signal with a steep falling edge provided by the present application. DETAILED DESCRIPTION

[0026] In order to more clearly understand the technical solutions in the present application, first, the related content is introduced.

[0027] Lithium sulfonyl chloride battery is a very common primary battery (not rechargeable), its main advantages are high energy density, long service life and wide working range, and it can also provide stable working voltage. A significant disadvantage of stable working voltage is that the remaining capacity of the sulfonyl chloride battery cannot be determined by voltage detection, because during the normal use stage of the non-end stage, the supply voltage of the sulfonyl chloride battery hardly changes.

[0028] Cat1 gateway can be described as a 4G communication module with the best balance of performance, power consumption and cost. It is the core solution for upgrading massive medium-rate Internet of Things devices to 4G network, and meets the demand of most Internet of Things applications for network performance.

[0029] Radio frequency pulse current is a typical power consumption feature when Cat1 gateway transmits data to the base station. At this time, the radio frequency pulse current has the characteristics of instantaneousness and irregularity, that is, the radio frequency pulse current will change according to the specific working condition of the Cat1 gateway.

[0030] The technical solutions in the present application are further described in detail in combination with the drawings.

[0031] The present application discloses a capacity calculation method for low-power Cat1 gateway lithium sulfonyl chloride battery, please refer to Figure 1 In some examples, the capacity calculation method for low-power Cat1 gateway lithium sulfonyl chloride battery disclosed by the present application includes the following steps: S101, in response to the received or detected trigger signal, the sampling resistance voltage signal on the lithium sulfonyl chloride battery power supply circuit is collected at a set frequency, and the collection period of the sampling resistance voltage signal is a complete working cycle; S102, the sampling resistor voltage signal located in the same acquisition cycle is amplified and processed, and is recorded as an amplified voltage signal; S103, the reference capacitor in the integration circuit is charged using the amplified voltage signal, and the voltage change of the reference capacitor is recorded to obtain a voltage change curve segment; S104, the power consumption of the acquisition cycle is calculated based on the voltage change curve segment, and is recorded as single power consumption; S105, the current power of the low-power Cat1 gateway lithium sulfonyl chloride battery and the single power consumption are calculated by difference to obtain the remaining power of the low-power Cat1 gateway lithium sulfonyl chloride battery.

[0032] First, the circuit involved in the capacity calculation method for the low-power Cat1 gateway lithium sulfonyl chloride battery disclosed in the present application is described, please refer to Figure 2 , the circuit includes a sampling resistor, a voltage sampling circuit, an amplification and integration circuit, an impedance conversion circuit and an MCU. The sampling resistor is located on the power supply circuit of the lithium sulfonyl chloride battery. The voltage sampling circuit is electrically connected with the sampling resistor. The voltage sampling circuit, the amplification and integration circuit, the impedance conversion circuit (high input impedance and low output impedance) and the MCU are electrically connected in sequence.

[0033] That is, the execution subject of the technical solution in the present application is the circuit mentioned above.

[0034] In step S101, in response to the received or detected trigger signal, first, the voltage signal of the sampling resistor on the lithium sulfonyl chloride battery power supply circuit is collected at a set frequency. The set frequency at this time is generally a fixed frequency.

[0035] In addition, the acquisition cycle of the sampling resistor voltage signal is a complete working cycle. The complete working cycle here refers to the time corresponding to a complete data transmission process of the low-power Cat1 gateway. That is, in the present application, the power consumption of the low-power Cat1 gateway is calculated and accumulated, and then compared with the total power of the lithium sulfonyl chloride battery to obtain the remaining power of the lithium sulfonyl chloride battery, or described as calculating the power consumption of the low-power Cat1 gateway and subtracting it from the total power of the lithium sulfonyl chloride battery.

[0036] In step S102, the sampling resistor voltage signal located in the same acquisition cycle is amplified and processed, and is recorded as an amplified voltage signal, which is because the resistance of the sampling resistor must be very small (for example, 0.01Ω, to reduce the voltage drop and heat), so the voltage signal V_sense generated is also very weak (for example, 2A current only generates 0.02V voltage).

[0037] The amplification link amplifies this signal in proportion (for example, amplifies 50 times, becomes 1V), so that its amplitude is more suitable for subsequent circuit processing, and can also improve the signal-to-noise ratio and measurement accuracy.

[0038] In step S103, the reference capacitor in the integration circuit is charged using the amplified voltage signal, and the voltage change of the reference capacitor is recorded to obtain a voltage change curve segment. Here, the integration circuit is described in combination with the integration circuit, which is usually composed of an operational amplifier, a capacitor and a resistor.

[0039] The mathematical function of the integration circuit is to time-integrate the input voltage, which is realized by the capacitor: the current flowing into the integration circuit charges the capacitor, and the voltage across the capacitor rises linearly with the accumulation of the charging charge.

[0040] In this way, a series of unpredictable and short high pulses can be converted into a smooth and slowly changing ramp voltage, and the total rising amplitude of the ramp voltage is proportional to the total charge carried by all pulses.

[0041] In step S104, the power consumption of the acquisition period is calculated based on the voltage change curve segment, denoted as single power consumption, and in step S105, the current power of the low-power Cat1 gateway lithium sulfonyl chloride battery and the single power consumption are calculated by difference to obtain the remaining power of the low-power Cat1 gateway lithium sulfonyl chloride battery, as shown in Figure 3 .

[0042] The advantages of this method are as follows: The MCU no longer measures a difficult-to-catch pulse, but a slowly changing DC voltage, which the MCU can easily sample at any speed (even "fast") to obtain a stable and effective value each time; The MCU can convert the analog voltage to a digital value by a series of binary search comparisons, and can process a slowly changing ramp signal more accurately. In addition, the MCU can sample the ramp voltage at a millisecond interval, and can accurately track its rising trend through multiple sampling.

[0043] It should be noted that for the radio frequency pulse current mentioned in the foregoing, its instantaneousness and irregularity mean that it is difficult to detect, but in the present application, please refer to Figure 4 and Figure 5 , which can be converted into a relatively gentle rising voltage signal. By sampling and calculating this rising voltage signal, the single working power consumption of the low-power Cat1 gateway can be more accurately obtained, and the remaining power of the lithium sulfonyl chloride battery can be more accurately determined. Here, the lithium sulfonyl chloride battery refers to the battery that powers the low-power Cat1 gateway.

[0044] In some examples, after obtaining the amplified voltage signal, the amplified voltage signal needs to be calibrated, and the reference for calibration is the number of missing peak points. The calibration of the amplified voltage signal is related to the sampling frequency, which is as follows: Please refer to Figure 6 and Figure 7 , first assume that the acquisition frequency of the sampling resistance voltage signal is a constant value, if always high frequency collection, it will inevitably produce a large amount of useless data, but also bring high power consumption, but using low frequency collection, will lead to a certain amount of data loss, therefore, it is necessary to adjust the acquisition frequency of the sampling resistance voltage signal by calibrating the amplified voltage signal.

[0045] The specific way of calibrating the amplified voltage signal is as follows: The amplified voltage signal is processed in time sequence, and the amplified voltage signal in the same segment has the same trend in time sequence; Select two adjacent segments in time sequence and generate two reference time periods corresponding to the peak points; Calculate the reference voltage change curve segment corresponding to the amplified voltage signal; Calculate the difference degree value of the reference voltage change curve segment and the voltage change curve segment; According to the difference degree value, adjust the acquisition frequency of the sampling resistance voltage signal, and the difference degree value is positively related to the acquisition frequency.

[0046] Specifically, it is determined whether the acquisition frequency of the sampling resistance voltage signal needs to be adjusted by calculating the difference degree value of the reference voltage change curve segment and the voltage change curve segment, and the difference degree value is only the peak point existing in the reference voltage change curve segment.

[0047] It is determined whether the loss of peak points occurs by regenerating the peak points corresponding to the two reference time periods, if the loss of peak points occurs, it means that the sampling frequency is not suitable and needs to be adjusted, otherwise it does not need to be adjusted.

[0048] The value of the difference degree value is generally determined according to the set error, for example, in a calculation process, the electric quantity corresponding to a missing peak point is 30 milliamperes, and the measurement error is required to be ≤100 milliamperes, then the difference degree value should be 3 at this time, and the measurement error corresponds to a fixed time length, generally in milliseconds.

[0049] In addition, the problem can also be solved by setting fixed parameters.

[0050] In some possible implementations, when the sampling resistance voltage signal is adjusted in frequency, the method further comprises adjusting the sampling resistance voltage signal in frequency according to a variation trend of the amplified voltage signal, the variation trend of the amplified voltage signal being positively correlated with the sampling resistance voltage signal in frequency. The variation trend of the amplified voltage signal comprises a positive variation trend and a negative variation trend.

[0051] That is, when the variation trend (slope) of the amplified voltage signal is large, the sampling resistance voltage signal in frequency needs to be automatically adjusted upward to avoid missing the peak point.

[0052] In some examples, the specific manner of obtaining the voltage curve segment is as follows: The voltage value of the reference capacitor is obtained according to the periodic interruption signal; The voltage value of one reference capacitor before the current voltage value and the voltage value of one reference capacitor after the current voltage value are selected on the sequence and the intermediate value of the two voltage values is calculated; The intermediate value is used as the sampling voltage value corresponding to the periodic interruption signal; The sampling voltage value participates in the process of obtaining the subsequent intermediate value.

[0053] This method uses the intermediate value to replace the obtained value, which has the advantage of effectively suppressing the occasional and severe pulse noise without losing the key transient information of the signal. This is because in the electrical environment, there are various occasional and high-intensity noises that can cause the ADC sampling value to produce a momentary and huge glitch.

[0054] If the average value of these contaminated data is directly calculated, the abnormal value will seriously distort the final result, resulting in complete distortion of the sampling value. The processing method in the application can effectively filter out such pulse interference and ensure the effectiveness of the data.

[0055] In addition, the passivation effect of the lithium sulfonyl chloride battery also needs to be considered here. Passivation refers to the chemical reaction between lithium metal and sulfonyl chloride electrolyte on the surface of the positive electrode (carbon electrode) of the lithium sulfonyl chloride battery, generating a dense and non-conductive lithium chloride (LiCl) film.

[0056] This non-conductive lithium chloride (LiCl) film brings about ultra-low self-discharge and ultra-long life, but there is a voltage drop phenomenon, which needs to be broken through by using current during use. In order to solve this problem, the method of periodic wake-up is generally used for processing, but there is still a certain probability that the lithium chloride (LiCl) film will appear.

[0057] Therefore, when collecting the voltage signal of the sampling resistor located on the lithium sulfuryl chloride battery power supply circuit according to the set frequency, the voltage drop signal is identified, and when the voltage drop signal is identified, the voltage signal of the sampling resistor located on the lithium sulfuryl chloride battery power supply circuit is collected using a high frequency.

[0058] The voltage signal collected using the high frequency has an abrupt falling edge Figure 8 When the voltage signal of the sampling resistor located on the lithium sulfuryl chloride battery power supply circuit is collected according to the set frequency, the abrupt falling edge is tracked until the abrupt falling edge disappears.

[0059] The above method determines when to collect the voltage signal of the sampling resistor located on the lithium sulfuryl chloride battery power supply circuit according to the set frequency by dynamically collecting the frequency. This is because maintaining a high frequency at all times will result in additional power consumption.

[0060] Here, for the power consumption of the abrupt falling edge, a fixed power value (obtained by experiment, which needs to refer to the breakdown energy consumption of the lithium chloride (LiCl) film under different working conditions) is set to participate in the calculation of the remaining power, and the identification of the abrupt falling edge can also avoid the battery power consumption caused by misjudgment.

[0061] The application also provides a capacity calculation device for a low-power Cat1 gateway lithium sulfuryl chloride battery, comprising: A data acquisition unit is configured to collect, in response to a received or detected trigger signal, a voltage signal of a sampling resistor located on a lithium sulfuryl chloride battery power supply circuit according to a set frequency, and the collection period of the voltage signal of the sampling resistor is a complete working period. A first processing unit is configured to amplify the voltage signal of the sampling resistor located in the same collection period, and the amplified voltage signal is denoted as an amplified voltage signal. A second processing unit is configured to charge a reference capacitor in an integration circuit using the amplified voltage signal and record the voltage change of the reference capacitor to obtain a voltage change curve segment. A first calculation unit is configured to calculate the power consumption of the collection period based on the voltage change curve segment, and the calculated power consumption is denoted as a single power consumption. A second calculation unit is configured to calculate the difference between the current power of the low-power Cat1 gateway lithium sulfuryl chloride battery and the single power consumption to obtain the remaining power of the low-power Cat1 gateway lithium sulfuryl chloride battery.

[0062] Further, after obtaining the amplified voltage signal, the amplified voltage signal is calibrated, and the reference for calibration is the number of missing peak points.

[0063] Further, the calibration of the amplified voltage signal comprises: The amplified voltage signal is segmented in time sequence, and the amplified voltage signals in the same segment have the same change trend in time sequence. Two adjacent segments in time sequence are selected and the peak points corresponding to the two reference time periods are generated. The reference voltage change curve segment corresponding to the amplified voltage signal is calculated. The difference value of the reference voltage change curve segment and the voltage change curve segment is calculated. The collection frequency of the sampling resistor voltage signal is adjusted according to the difference value, and the difference value is positively correlated with the collection frequency.

[0064] Further, the difference value is the peak point existing only on the reference voltage change curve segment.

[0065] Further, when adjusting the collection frequency of the sampling resistor voltage signal, it also includes adjusting the collection frequency of the sampling resistor voltage signal according to the change trend of the amplified voltage signal, and the change trend of the amplified voltage signal is positively correlated with the collection frequency of the sampling resistor voltage signal. The change trend of the amplified voltage signal includes positive change trend and negative change trend.

[0066] Further, obtaining the voltage change curve segment includes: The voltage value of the reference capacitor is collected according to the periodic interruption signal to obtain the current voltage value; The voltage value of one reference capacitor before the current voltage value and the voltage value of one reference capacitor after the current voltage value are selected in the order sequence, and the intermediate value of the two voltage values is calculated; The intermediate value is used as the collection voltage value corresponding to the periodic interruption signal; The collection voltage value participates in the process of obtaining the subsequent intermediate value.

[0067] Further, when collecting the sampling resistor voltage signal on the lithium sulfonyl chloride battery power supply circuit according to the set frequency, it also includes identifying the voltage drop signal. When identifying the voltage drop signal, the sampling resistor voltage signal on the lithium sulfonyl chloride battery power supply circuit is collected at a high frequency; When the resistor voltage signal collected at a high frequency has a steep falling edge, the steep falling edge is tracked until the steep falling edge disappears, and then the sampling resistor voltage signal on the lithium sulfonyl chloride battery power supply circuit is collected according to the set frequency.

[0068] In an example, the units in any of the above apparatuses can be one or more integrated circuits, configured to implement one or more of the above methods, e.g., one or more application specific integrated circuits (ASICs), or, one or more digital signal processors (DSPs), or, one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0069] For another example, when the units in the apparatuses can be implemented in the form of a processing element scheduler, the processing element can be a general purpose processor, such as a central processing unit (CPU) or other processor that can invoke a program. For another example, these units can be integrated together in the form of a system-on-a-chip (SOC).

[0070] In the present application, various objects such as messages / information / devices / network elements / systems / apparatuses / actions / operations / processes / concepts, etc. that can occur are named. It can be understood that these specific names do not constitute a limitation on the related objects, and the names can be changed according to the scene, context or usage habits, etc. The technical meaning of the technical terms in the present application should be mainly determined from the function and technical effect embodied / executed in the technical scheme.

[0071] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, apparatus and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0072] In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method can be implemented in other ways. For example, the above-described apparatus embodiments are merely schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be omitted or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed objects can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0073] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e. may be located in one place, or may be distributed on multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0074] Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are implemented in hardware or software depends on the specific application and design constraints of the technical scheme. The skilled person can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0075] It should also be understood that in various embodiments of the present application, first, second, etc. are only to represent that a plurality of objects are different. For example, the first time window and the second time window are only to represent different time windows. The above first, second, etc. should not have any effect on the time window itself, and should not limit the embodiments of the present application.

[0076] It should also be understood that in various embodiments of the present application, the terms and / or descriptions of different embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0077] When the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on such understanding, the technical scheme of the present application essentially or the part that contributes to the prior art or part of the technical scheme can be embodied in the form of a software product. The computer software product stored in a computer readable storage medium includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in various embodiments of the present application. The aforementioned computer readable storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and various program code storage media.

[0078] The application also provides a capacity calculation circuit applied to a low-power Cat1 gateway lithium sulfinyl chloride battery, the capacity calculation circuit comprises: One or more memories for storing instructions; and​​​​​​ one or more processors to invoke and run the instructions from the memory to perform the method as recited in the above description.

[0079] The present application also provides a computer program product including instructions which, when executed, cause the terminal device and the network device to perform the operations of the terminal device and the network device corresponding to the above method.

[0080] The present application also provides a chip system including a processor to implement the functions involved in the above description, such as generating, receiving, sending, or processing the data and / or information involved in the above method.

[0081] The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0082] The processor mentioned in any of the above can be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the program execution of the above-mentioned feedback information transmission method.

[0083] In a possible design, the chip system further includes a memory, which is configured to store necessary program instructions and data. The processor and the memory can be decoupled and arranged on different devices, and connected through wired or wireless means to support the chip system to implement various functions in the above embodiments. Alternatively, the processor and the memory can be coupled on the same device.

[0084] Optionally, the computer instructions are stored in the memory.

[0085] Optionally, the memory is a storage unit in the chip, such as a register, a cache, etc. The memory can also be a storage unit in the terminal located outside the chip, such as a ROM or other type of static storage device that can store static information and instructions, a RAM, etc.

[0086] It can be understood that the memory in the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories.

[0087] The non-volatile memory can be a ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically EPROM (EEPROM), or a flash memory.

[0088] The volatile memory can be a RAM used as an external cache. RAM has many different types, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synch link DRAM (SLDRAM), and direct Rambus RAM.

[0089] The embodiments of the present disclosure are all the preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A capacity estimation method for a low-power Cat1 gateway lithium sulfoxyl chloride battery, characterized by, The method comprises the following steps: In response to a received or detected trigger signal, a sampling resistor voltage signal on a lithium sulfonyl chloride battery power supply circuit is collected at a set frequency, and the collection period of the sampling resistor voltage signal is a complete working cycle; The sampling resistor voltage signals in the same collection period are amplified to obtain amplified voltage signals; The amplified voltage signals are used to charge a reference capacitor in an integration circuit and record the voltage change of the reference capacitor to obtain a voltage change curve segment; The power consumption of the collection period is calculated based on the voltage change curve segment, and is recorded as single power consumption; The current power of the low-power Cat1 gateway lithium sulfonyl chloride battery and the single power consumption are calculated by difference to obtain the remaining power of the low-power Cat1 gateway lithium sulfonyl chloride battery.

2. The method for capacity estimation of a low-power Cat 1 gateway lithium sulfoxyl chloride battery according to claim 1, characterized in that, After obtaining the amplified voltage signal, the amplified voltage signal is calibrated, and the reference for calibration is the number of missing peak points.

3. The method for capacity estimation of a low-power Cat 1 gateway lithium sulfoxyl chloride battery according to claim 2, characterized in that, Calibrating the amplified voltage signal comprises: Segmenting the amplified voltage signal in time sequence, and the amplified voltage signals in the same segment have the same change trend in time sequence; Selecting two adjacent segments in time sequence and generating peak points corresponding to the two reference time periods; Calculating a reference voltage change curve segment corresponding to the amplified voltage signal; Calculating the difference value of the reference voltage change curve segment and the voltage change curve segment; Adjusting the collection frequency of the sampling resistor voltage signal according to the difference value, and the difference value is positively correlated with the collection frequency.

4. The method for capacity estimation of low power Cat 1 gateway lithium sulfoxyl chloride battery as claimed in claim 3, wherein, The difference value is the peak point that only exists in the reference voltage change curve segment.

5. The method for capacity estimation of a low-power Cat 1 gateway lithium sulfoxyl chloride battery according to claim 2 or 3 or 4, characterized in that, When adjusting the collection frequency of the sampling resistor voltage signal, the collection frequency of the sampling resistor voltage signal is also adjusted according to the change trend of the amplified voltage signal, and the change trend of the amplified voltage signal is positively correlated with the collection frequency of the sampling resistor voltage signal; The change trend of the amplified voltage signal includes positive change trend and negative change trend.

6. The method for capacity estimation of low power Cat 1 gateway lithium sulfoxyl chloride battery as claimed in claim 1, wherein, Obtaining the voltage change curve segment comprises: Collecting the voltage value of the reference capacitor according to the periodic interruption signal to obtain the current voltage value; Selecting a voltage value of a reference capacitor before the current voltage value and a voltage value of a reference capacitor after the current voltage value in the order sequence and calculating the intermediate value of the two voltage values; Using the intermediate value as the collection voltage value corresponding to the periodic interruption signal; The collection voltage value participates in the process of obtaining the subsequent intermediate value.

7. The method for capacity estimation of low power Cat 1 gateway lithium sulfoxyl chloride battery as claimed in claim 1, wherein, When collecting the sampling resistor voltage signal on the lithium sulfonyl chloride battery power supply circuit at the set frequency, a voltage drop signal is also identified; When the voltage drop signal is identified, the sampling resistor voltage signal on the lithium sulfonyl chloride battery power supply circuit is collected at a high frequency; When the resistor voltage signal collected at a high frequency has a steep falling edge, the steep falling edge is tracked until the steep falling edge disappears, and then the sampling resistor voltage signal on the lithium sulfonyl chloride battery power supply circuit is collected at the set frequency.

8. A capacity estimation circuit applied to a low-power Cat1 gateway lithium sulfoxyl chloride battery, characterized in that, The capacity calculation circuit comprises: One or more memories for storing instructions; and One or more processors for calling and running the instructions from the memory to execute the method of any one of claims 1 to 7.

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