CN112034376A - Power management apparatus and method - Google Patents
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- 238000005259 measurement Methods 0.000 claims abstract description 52
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- 238000007405 data analysis Methods 0.000 claims abstract description 37
- 238000007726 management method Methods 0.000 claims description 93
- 238000004364 calculation method Methods 0.000 claims description 43
- 238000013480 data collection Methods 0.000 claims description 17
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- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The application provides a power supply management device and a method, wherein the power supply management device comprises a test unit, the test unit comprises at least one data acquisition module and at least one data analysis module, the data acquisition module acquires operation parameters of a power supply in the power supply management device and transmits the operation parameters to the data analysis module, and the data analysis module manages and analyzes the operation parameters output by the data acquisition module to obtain an analysis result; because the test unit is arranged in the power supply management device, the operation parameters of each power supply of the power supply management device can be measured in real time and in a lossless manner, a measurement circuit does not need to be developed outside the power supply management device in the later period, and the workload of later-period development is reduced.
Description
Technical Field
The present application relates to the field of circuits, and in particular, to a power management apparatus and method.
Background
With the development of science and technology and the improvement of the living standard of people, various electrical systems are ubiquitous in daily production and life. In various electrical systems, the measurement, calculation and analysis of current and power consumption are always unavoidable and relatively difficult problems.
At present, the measurement schemes of various manufacturers for an electrical system are not completely consistent, but the ideas are basically similar, as shown in fig. 1, an additional measurement port or circuit is added outside a core hardware product of the electrical system, a monitoring device or a data acquisition card is used for measuring the current of a single path or a few paths in the core hardware product through the measurement port or circuit, and then a data processing tool is used for manually calculating the corresponding power or efficiency.
As shown in fig. 1, the measurement process includes hardware design of the circuit board, construction of the test system, and post-analysis of the measurement data, which results in a large amount of post-development work of the measurement system, and the measurement result cannot be subjected to embedded correlation analysis with various software behaviors of the system.
Disclosure of Invention
The embodiment of the application provides a power supply management device and method, which can be used for measuring the data of a power supply in the power supply management device in real time and in a lossless manner and reducing the workload of later development.
In a first aspect, a power management device includes a test unit including at least one data acquisition module and at least one data analysis module;
the data acquisition module is used for acquiring the operating parameters of the power supply in the power supply management device;
the data analysis module is used for managing and analyzing the operation parameters output by the data acquisition module to obtain an analysis result; the analysis results include a first timestamp that is used to align with a second timestamp in the software tracking results.
In one embodiment, the at least one data acquisition module comprises a linear low dropout power (LDO) data acquisition module and/or a direct current power converter (DCDC) data acquisition module;
the LDO data acquisition module is used for acquiring the operation parameters of the LDO in the power management device;
the DCDC data acquisition module is used for acquiring the operating parameters of the DCDC in the power management device.
In one embodiment, the LDO data collection module is further configured to collect an operation parameter of a total system power in the power management apparatus.
In one embodiment, the LDO data acquisition module includes at least one of a current sensor, a voltage sensor, and a current mirror circuit.
In one embodiment, the DCDC data acquisition module includes a current mirror circuit.
In one embodiment, the DCDC data acquisition module is further configured to obtain a third timestamp, and calibrate an internal clock of the DCDC data acquisition module according to the third timestamp; the third timestamp is a timestamp for acquiring an operating parameter of the DCDC.
In one embodiment, the at least one data analysis module comprises a current analysis module and/or a power consumption analysis module;
the current analysis module is used for analyzing current data in the operating parameters output by the data acquisition modules;
the power consumption analysis module is used for calculating the power consumption of each power supply according to the operation parameters output by each data acquisition module.
In one embodiment, the current analyzing module is configured to analyze current data in the operating parameters output by each of the data collecting modules, and includes:
the current analysis module is used for acquiring current data of each power supply in the power supply management device according to the operation parameters output by each data acquisition module, analyzing the current data of each power supply according to a preset format and generating a current measurement information table.
In one embodiment, the power consumption analyzing module is configured to calculate the power consumption of each power supply according to the operating parameters output by each data collecting module, and includes:
the power consumption analysis module is used for determining the operating parameters of each power supply according to the operating parameters output by each data acquisition module, determining a target power consumption calculation model of each power supply according to the corresponding relation between the type of the power supply and the power consumption calculation model, and inputting the operating parameters of each power supply into the corresponding target power consumption calculation model for power consumption calculation to obtain the power consumption of each power supply.
In one embodiment, the test unit further includes a storage module, and the storage module is configured to store configuration information of each of the data acquisition modules, configuration information of each of the data analysis modules, and an operation parameter acquired by each of the data acquisition modules.
In a second aspect, a power management method is applied to the power management apparatus in any one of the first aspect, and the power management method includes:
collecting operating parameters of each power supply in the power supply management device;
managing and analyzing the operation parameters of each power supply to obtain an analysis result; the analysis results include a first timestamp that is used to align with a second timestamp in the software tracking results. In one embodiment, the acquiring the operation parameters of each power supply in the power supply management device includes:
and acquiring the operation parameters of at least one power supply of LDO, DCDC and the total power supply of the system in the power management device.
In one embodiment, the power management method further comprises:
acquiring a third timestamp; the third timestamp is a timestamp for acquiring the operating parameters of the DCDC;
and calibrating the internal clock of the DCDC data acquisition module according to the third timestamp.
In one embodiment, the performing management analysis on the operation parameters of the power supplies includes:
analyzing current data in the operating parameters of each power supply; and/or the presence of a gas in the gas,
and calculating the power consumption of each power supply according to the operation parameters of each power supply.
In one embodiment, the analyzing the current data in the operating parameters of the power supplies includes:
obtaining current data of each power supply from operating parameters of each power supply;
and analyzing the current data of each power supply according to a preset format to generate a current measurement information table.
In one embodiment, the calculating the power consumption of each of the power supplies according to the operating parameters of each of the power supplies includes:
determining a target power consumption calculation model of each power supply according to the corresponding relation between the type of the power supply and the power consumption calculation model;
and inputting the operating parameters of each power supply into a corresponding target power consumption calculation model for power consumption calculation to obtain the power consumption of each power supply.
In one embodiment, the method further comprises:
outputting the analysis result to an external device; the analysis result comprises current information and/or power consumption information carrying the first timestamp; and the external equipment is used for aligning the first time stamp with a second time stamp in the software tracking result, and determining and displaying current information and/or power consumption information of a corresponding power supply in the execution process of each task.
The power management device comprises a test unit, the test unit comprises at least one data acquisition module and at least one data analysis module, the data acquisition module acquires operation parameters of a power supply in the power management device and transmits the operation parameters to the data analysis module, and the data analysis module manages and analyzes the operation parameters output by the data acquisition module to obtain an analysis result; because the test unit is arranged in the power supply management device, the operation parameters of each power supply of the power supply management device can be measured in real time and in a lossless manner, a measurement circuit does not need to be developed outside the power supply management device in the later period, and the workload of later-period development is reduced. In addition, because the analysis result comprises the first time stamp, the first time stamp and the second time stamp in the software tracking result can be aligned, and the measured running data of each power supply and various software behaviors of the system are subjected to embedded correlation analysis.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of an electrical measurement system in one embodiment;
FIG. 2 is a diagram of a power management device according to an embodiment;
FIG. 3 is a diagram of a power management device according to an embodiment;
FIG. 4 is a diagram of a power management device according to an embodiment;
FIG. 5 is a diagram illustrating an exemplary power management apparatus;
FIG. 6 is a flow diagram of a method for power management according to an embodiment;
FIG. 7 is a flow diagram of a method for power management according to an embodiment;
FIG. 8 is a flowchart of a power management method according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Fig. 2 is a schematic diagram of a power management device according to an embodiment, and as shown in fig. 2, the power management device includes a testing unit 1, where the testing unit 1 includes at least one data acquisition module 11 and at least one data analysis module 12; the data acquisition module 11 is used for acquiring the operating parameters of the power supply in the power supply management device; the data analysis module 12 is used for managing and analyzing the operation parameters output by the data acquisition module to obtain an analysis result; the analysis results include a first timestamp that is used to align with a second timestamp in the software trace results.
In this embodiment, a Power Management device is provided, where the Power Management device may be a Power Management Integration Circuit (PMIC), the PMIC includes a testing unit 1, that is, the testing unit 1 is integrated inside the PMIC, and the testing unit 1 may measure an operating parameter of each Power supply in the PMIC and may also manage and analyze the operating parameter of each Power supply.
The test unit 1 comprises at least one data acquisition module 11 and at least one data analysis module 12, different data acquisition modules 11 measure different power supplies to acquire operating parameters of different power supplies, and different data analysis modules 12 can manage and analyze different operating parameters. As shown in fig. 2, two data acquisition modules 11 and two data analysis modules 12 are shown, where the two data acquisition modules 11 respectively measure the operating parameters of different power sources, for example, one data acquisition module 11 measures the input and output currents, voltages, time stamps, etc. of a Low Dropout Regulator (LDO), and the other data acquisition module 11 measures the input and output currents, voltages, time stamps, etc. of a dc power converter (DCDC); one data analysis module 12 is responsible for classification and statistics of the input and output currents of all power supplies, and the other data analysis module 12 is responsible for calculating power consumption from current measurement results.
The data analysis module 12 manages and analyzes the operation parameters output by each data acquisition module 11 to obtain an analysis result, for example, the data analysis module 12 may perform classification statistics according to a timestamp generated when each operation parameter is acquired, perform classification statistics on the current and the voltage of each power supply according to the time sequence of the timestamp, or calculate and obtain the power consumption of each power supply at each timestamp according to the current and the voltage, then use the classified information of the current, the voltage, the power consumption and the like with the timestamp as an analysis result, and align the timestamp in the analysis result with the timestamp in the software tracking result, thereby achieving the purpose of performing embedded correlation analysis on the measurement result of the power supply of the PMIC and various software behaviors of the system.
It should be noted that the test unit 1 may further include a data acquisition module 11 and a data analysis module 12, which are used to perform measurement of other circuits and calculation analysis of other operating parameters, and the embodiment of the present application is not limited thereto.
In this embodiment, since the testing unit 1 is built in the PMIC, and compared with the measuring device arranged outside the PMIC, the Current and Power measured by the testing unit 1 have the characteristics of Lossless and real-time Measurement, the testing unit 1 can be regarded as a Lossless real-time Current and Power Measurement unit (LRCPM) system.
The power management device provided by the embodiment of the application comprises a test unit, wherein the test unit comprises at least one data acquisition module and at least one data analysis module, the data acquisition module acquires operation parameters of a power supply in the power management device and transmits the operation parameters to the data analysis module, and the data analysis module manages and analyzes the operation parameters output by the data acquisition module to obtain an analysis result; because the test unit is arranged in the power supply management device, the operation parameters of each power supply of the power supply management device can be measured in real time and in a lossless manner, a measurement circuit does not need to be developed outside the power supply management device in the later period, and the workload of later-period development is reduced. In addition, because the analysis result comprises the first time stamp, the first time stamp and the second time stamp in the software tracking result can be aligned, and the measured running data of each power supply and various software behaviors of the system are subjected to embedded correlation analysis.
Fig. 3 is a schematic diagram of a power management apparatus according to an embodiment, and as shown in fig. 3, at least one data acquisition module 11 includes an LDO data acquisition module 111 and/or a DCDC data acquisition module 112; the LDO data acquisition module 111 is used for acquiring operation parameters of an LDO in the power management device; the DCDC data collection module 112 is configured to collect operating parameters of DCDC in the power management apparatus.
It should be noted that fig. 3 shows the LDO data acquisition module 111 and the DCDC data acquisition module 112, in an actual scenario, the test unit 1 may include the LDO data acquisition module 111, may also include the DCDC data acquisition module 112, may also include two modules, namely, the LDO data acquisition module 111 and the DCDC data acquisition module 112, and may also include a data acquisition module that measures other power supplies, which is not limited in this embodiment of the application.
Typically, the power management device includes both LDO and DCDC power supplies. LDOs tend to provide low noise, better input and output linearity, smaller loads, and higher efficiency power supplies; the DCDC tends to provide drive for a larger load, and two modes of frequency modulation and pulse width are provided simultaneously to cope with different states of the load, so that the efficiency and the quality of the power supply are improved. Therefore, in this embodiment, the LDO data acquisition module 111 and/or the DCDC data acquisition module 112 may be disposed in the test unit 1 according to actual requirements.
The LDO data acquisition module 111 is designed to deal with the characteristics of the LDO power supply, the start of measurement can be triggered by a register, the input and output current and voltage states of the LDO power supply can be monitored, and the measurement result is transmitted to the next-stage data analysis module 12 to be used as the calculation input of the next step.
Optionally, the LDO data collection module 111 is further configured to collect an operation parameter of a total system power in the power management apparatus. The LDO data acquisition module 111 also monitors the system's total power (e.g., battery) information as input to the total current and power consumption calculations.
Illustratively, the LDO data acquisition module 111 includes at least one of a current sensor, a voltage sensor, and a current mirror circuit. Different measuring devices can be arranged according to the characteristics of the LDO current, for example, in the face of large current or small current, different measuring device combination modes can be adopted to complete monitoring tasks, so that a proper measuring device combination mode is selected according to currents of different sizes, and the measuring accuracy and scene universality are improved.
The DCDC data collection module 112 is designed to specifically address the DCDC characteristics, and can monitor the input and output current and voltage states of the DCDC power supply. Because of the switching characteristics of the DCDC power supply, the data from the DCDC data acquisition module 112 may be further processed for clock synchronization before being sent to the data analysis module 12 for final processing. But for low power modes of DCDC (e.g., PWM), its data may also be directly picked up by the data analysis module 12. The other functions of the DCDC test circuit module 12 are similar to the LDO data acquisition module 111.
Optionally, the DCDC data acquisition module 112 includes a current mirror circuit. The measurement mode of the DCDC data acquisition module 112 is more preferable to the current mirror circuit, because the input and output power of DCDC is usually larger, and the current mirror circuit is more suitable for measuring the current.
Further, the DCDC data acquisition module 112 is further configured to obtain a third timestamp, and calibrate an internal clock of the DCDC data acquisition module according to the third timestamp; the third timestamp is a timestamp of acquiring an operating parameter of the DCDC.
In this embodiment, due to the switching characteristic of the DCDC power supply, the DCDC data acquisition module 112 has a specific internal clock, so that the DCDC data acquisition module 112 outputs a third timestamp while acquiring data, the DCDC data acquisition module 112 can compare the third timestamp with a timestamp of the system total clock, and if a timestamp deviation between the third timestamp and the system total clock is found to be large, the internal clock of the DCDC data acquisition module 112 can be calibrated. The synchronization of the internal clock of the DCDC data acquisition module 112 and the total system clock is ensured, and the accuracy of data acquisition and the reliability of embedded correlation analysis of various software behaviors with the system in the later period are further ensured.
Optionally, a calibration module may be further provided, configured to calibrate an internal clock of the DCDC data acquisition module according to the third timestamp.
In this embodiment, the LDO data collection module 111 and/or the DCDC data collection module 112 may be disposed in the test unit, the LDO data collection module 111 collects the operating parameters of the LDOs in the power management device, the DCDC data collection module 112 collects the operating parameters of the DCDC in the power management device, the LRCPM system may be configured according to the requirements of projects, products, or cases, the measurement content may be flexibly configured, the measurement process may be efficiently completed in real time, and customized measurement may be implemented.
As shown in fig. 4, the at least one data analysis module 12 includes a current analysis module 121 and/or a power consumption analysis module 122; the current analysis module 121 is configured to analyze current data in the operating parameters output by each data acquisition module; the power consumption analysis module 122 is configured to calculate power consumption of each power supply according to the operating parameters output by each data acquisition module.
It should be noted that fig. 4 shows a current analysis module 121 and a power consumption analysis module 122, in an actual scenario, the test unit 1 may include the current analysis module 121, may also include the power consumption analysis module 122, may also include two modules, namely, the current analysis module 121 and the power consumption analysis module 122, and may also include a data analysis module that manages other test parameters, which is not limited in this embodiment of the application.
In this embodiment, the current analysis module 121 is responsible for calculating and processing all current measurement results, including input and output current data of the LDO, the DCDC and the system total power supply, for example, calculating the total current of each power supply in a period of time, counting the current of each power supply at each time, and the like.
Further, the current analysis module 121 is configured to analyze current data in the operating parameters output by each data acquisition module, and includes: the current analysis module 121 is configured to obtain current data of each power supply in the power supply management device according to the operation parameters output by each data acquisition module, analyze the current data of each power supply according to a preset format, and generate a current measurement information table.
In this embodiment, a special current processing circuit module 121 is provided to process the current, on one hand, different clock frequencies can be set for different data acquisition modules, so as to improve the accuracy of data acquisition; on the other hand, the current analysis module 121 may generate a special current measurement information report according to the current result measured by each data acquisition module, where the current measurement report may include the current measurement results of multiple power supplies, and may perform comprehensive analysis, show the current of each power supply, and the like. The data of the current analysis module 121 can be accessed through the PMIC internal bus to save the area of the current analysis module 121. In addition, the current analysis module 121 may synchronize with a system clock when calculating each path of power supply current, and further map the power supply current to a behavior of system software, thereby providing better help for system analysis.
The power consumption analysis module 122 is responsible for power consumption calculation of all modules, including input and output power consumption of the LDO, DCDC, and the total power supply. But LDO and DCDC have different characteristics, and the measurement results of different data acquisition modules need to be calculated based on different models.
Further, the power consumption analysis module 122 is configured to calculate power consumption of each power supply according to the operation parameters output by each data acquisition module, and includes: the power consumption analysis module 122 is configured to determine an operating parameter of each power supply according to the operating parameter output by each data acquisition module, determine a target power consumption calculation model of each power supply according to a correspondence between the type of the power supply and the power consumption calculation model, and input the operating parameter of each power supply into the corresponding target power consumption calculation model to perform power consumption calculation, so as to obtain power consumption of each power supply.
In this embodiment, a correspondence between the type of the power supply and the power consumption calculation model may be preset, after the power consumption analysis module 122 obtains the operation parameters of each power supply measured by each data acquisition module, the target power consumption calculation model of each power supply is determined according to the correspondence, and the operation parameters of each power supply are input into the corresponding target power consumption calculation model for power consumption calculation, so as to obtain the power consumption of each power supply. Different power consumption calculation models are set for different power supply types, so that the accuracy of power consumption calculation is improved.
Further, the current analysis module 121 and the power consumption analysis module 122 may perform parallel computation, thereby improving the computation efficiency.
In the embodiment of the application, the test unit includes current analysis module 121 and/or power consumption analysis module 122, current analysis module analyzes the current data in the operating parameters of each data acquisition module output, power consumption analysis module calculates the power consumption of each power according to the operating parameters of each data acquisition module output, the measurement and calculation of full-automatic current and power consumption are realized through current analysis module 121 and power consumption analysis module 122, the efficiency of system measurement and analysis is effectively improved, and the workload of later development is effectively avoided. In addition, the current analysis module 121 and the power consumption analysis module 122 in this embodiment may utilize the programmability of the LRCPM system, and may set the measured power branch and different report forms according to the needs of the project, thereby improving the flexibility of analyzing the system power consumption and other problems.
As shown in fig. 5, the testing unit 1 further includes a storage module 13, where the storage module 13 is configured to store configuration information of each data acquisition module, configuration information of each data analysis module, and operation parameters acquired by each data acquisition module.
In this embodiment, the storage module 13 may be implemented by using a register, for example, a register may be set for each module in the test unit 1, and is used to store the configuration information of each module, the configuration information of each data analysis module, the operation parameters acquired by each data acquisition module, and the like. Alternatively, the storage module may be connected to an external device, and the external device may access the register through the register bus, for example, the external device inputs a measurement signal to the register through the register bus, and the register receives the measurement signal to trigger the corresponding data acquisition module to measure the operating parameter of the power supply. For example, when the input and output current of the LDO power supply needs to be measured, the external device inputs an LDO measurement signal to the storage module, the storage module finds the register of the LDO data acquisition module according to the LDO measurement signal, and triggers the LDO data acquisition module to perform testing by modifying the value of the register. The external equipment can trigger the corresponding data acquisition module to test through the register in the storage module according to the actual measurement requirement, the process is simple, and additional circuit design is not required to be added.
In this embodiment, the registers are also mapped to the register list of the entire PMIC, and the registers of each module in the PMIC can be checked through the register list of the PMIC. In addition, some registers are mapped to system state indication to indicate some operation states of PMIC for later analysis; and the registers are used for temporarily storing the measured values of the data acquisition modules for delayed access of the system processor.
Optionally, as shown in fig. 5, the test unit further includes a clock module 14, and the clock module 13 is configured to output a clock signal to each module of each PMIC.
In this embodiment, the clock module 14 is responsible for clock management of the entire PMIC, and the clock module 13 receives a clock configuration signal input by an external device and outputs a corresponding clock signal to other modules of the PMIC according to the clock configuration signal, for example, the clock module 13 outputs a clock signal to each data acquisition module 11 and each data analysis module 12 according to the clock configuration signal, so as to implement unified management of clocks of each module in the entire power management apparatus.
Further, the clock module 14 is specifically configured to output clock signals with different frequencies to different modules of the PMIC according to a clock configuration signal input by an external device.
In this embodiment, the clock module 14 may set, turn on or turn off clocks of other modules, and may provide different clock frequencies for different modules according to the clock configuration signal, for example, the data acquisition module needs to perform real-time measurement, may configure a high-speed clock frequency for the data acquisition module, the data analysis module may calculate and analyze multiple measurement data together, may configure a low-speed clock frequency for the data analysis module, and the like, which is not limited in this embodiment.
In this embodiment, the clock module outputs clock signals of different frequencies to each module of the PMIC according to a clock configuration signal input by an external device, so as to provide a high-speed or low-speed mode for different modules, and change sampling granularity of the PMIC, thereby improving measurement accuracy. Because the PMIC is arranged in the chip in a built-in mode, short-distance measurement can be achieved, and by adopting the short-distance and system clock synchronous measurement mode, the nondestructive and real-time measurement effect is guaranteed. Moreover, the clock module is uniformly configured with the clock of each module, which is equivalent to measuring based on the system clock, and the system processor can synchronize the tracking result of the system software and the measuring results of the current, the power consumption and the like of the PMIC, so as to present and analyze the problem, which can greatly improve the efficiency of analyzing the system problem.
Fig. 6 is a flowchart of a power management method according to an embodiment, which is applied to the power management apparatus according to any one of fig. 2 to 5, as shown in fig. 6, where the power management method may include the following steps:
s601, collecting operation parameters of each power supply in the power supply management device.
The power management device may include a plurality of power supplies, and the plurality of power supplies may be different types of power supplies or the same type of power supplies. The operating parameters may include input current, output current, voltage, remaining charge, temperature, etc. of the power supply.
In this embodiment, as shown in any one of fig. 2 to 5, a test unit disposed in the power management apparatus may be provided with a plurality of data acquisition modules for respectively acquiring the operating parameters of each power supply. For example, one data acquisition module 11 measures input and output currents, voltages, time stamps, etc. of a Low drop out Regulator (LDO), and the other data acquisition module 11 measures input and output currents, voltages, time stamps, etc. of a Direct current to Direct current converter (DCDC).
S602, managing and analyzing the operation parameters of each power supply to obtain an analysis result; the analysis results include a first timestamp that is used to align with a second timestamp in the software trace results.
The analysis result comprises a first time stamp, and the first time stamp can be a time stamp for collecting the operation data of each data collection module. The software tracking result is obtained by measuring various operating parameters of the software in the software operating process, and the second timestamp is a timestamp for measuring the operating parameters of the software.
In this embodiment, the collected operation parameters of each power supply may be managed and analyzed, and an analysis result carrying the first timestamp may be obtained. For example, classification statistics may be performed according to a first timestamp generated when each operating parameter is collected, and classification statistics may be performed on the current and the voltage of each power supply according to the time sequence of the first timestamp, or power consumption of each power supply at each first timestamp is obtained through calculation according to the current and the voltage, and then information of the classified current, voltage, power consumption and the like with the first timestamp is used as an analysis result, and the first timestamp in the analysis result is aligned with a second timestamp in a software tracking result, so that the purpose of performing embedded correlation analysis on the measurement result of the power supply of the PMIC and various software behaviors of the system is achieved.
The power management method provided by the embodiment of the application collects the operation parameters of the power supply in the power management device, manages and analyzes the operation parameters of each power supply to obtain an analysis result, and is applied to the power management device. In addition, because the analysis result comprises the first time stamp, the first time stamp and the second time stamp in the software tracking result can be aligned, and the measured running data of each power supply and various software behaviors of the system are subjected to embedded correlation analysis.
Typically, the power management device includes LDO, DCDC, system mains, and the like. Optionally, the step S601 "collecting operation parameters of each power supply in the power supply management device" includes: and acquiring the operation parameters of at least one power supply of LDO, DCDC and the total power supply of the system in the power management device.
In this embodiment, as shown in any one of fig. 2 to fig. 5, different data acquisition modules may be provided for different types of power supplies, for example, the LDO data acquisition module 111 is specifically designed to deal with the characteristics of the LDO power supply, the current and the voltage state of the input and the output of the LDO power supply are monitored by the LDO data acquisition module 111, and the operation parameters of the total power supply of the system in the power management apparatus may also be acquired by the LDO data acquisition module 111. The DCDC data collection module 112 is designed to specifically address the DCDC characteristics, and can monitor the input and output current and voltage states of the DCDC power supply.
Further, the power management method further includes: acquiring a third timestamp; the third timestamp is a timestamp for acquiring the operating parameters of the DCDC; and calibrating the internal clock of the DCDC data acquisition module according to the third timestamp.
In this embodiment, due to the switching characteristic of the DCDC power supply, when the operating parameter of the DCDC is collected, the third timestamp for collecting the operating parameter of the DCDC can be obtained, the third timestamp is compared with the timestamp of the total system clock, and if the timestamp deviation between the third timestamp and the total system clock is found to be large, the internal clock of the DCDC data collection module can be calibrated. The synchronization of the internal clock of the DCDC data acquisition module 112 and the total system clock is ensured, and the accuracy of data acquisition and the reliability of embedded correlation analysis of various software behaviors with the system in the later period are further ensured.
In one embodiment, the step S602 "performing management analysis on the operating parameters of each power supply" includes: analyzing current data in the operating parameters of each power supply; and/or calculating the power consumption of each power supply according to the operation parameters of each power supply.
In this embodiment, different types of data in the operation parameters of each power supply may be analyzed, or different types of data may be analyzed in combination, for example, current data in the operation parameters of each power supply may be analyzed, voltage data in the operation parameters of each power supply may be analyzed, or power consumption of each power supply may be calculated according to current and voltage in the operation parameters of each power supply.
Further, as shown in fig. 7, the step "analyzing the current data in the operation parameters of each power supply" includes:
and S701, acquiring current data of each power supply from the operation parameters of each power supply.
S702, analyzing the current data of each power supply according to a preset format to generate a current measurement information table.
In this embodiment, the input and output current data of the power supplies such as the LDO, the DCDC, and the system main power supply may be analyzed, for example, the total current of each power supply in a period of time is calculated, the current of each power supply at each time is counted, and a special current measurement information report is generated according to the counting result, where the current measurement report may include the current measurement results of a plurality of power supplies, and may perform comprehensive analysis, show the current of each power supply, and the like. In this embodiment, current measurement information is generated according to the presets, so that the currents of the power supplies can be conveniently displayed and analyzed on other external devices, and the currents of the power supplies and the software behaviors in the software tracking result can be conveniently subjected to combined analysis.
Further, as shown in fig. 8, the step of "calculating power consumption of each of the power supplies according to the operating parameter of each of the power supplies" includes:
s801, determining a target power consumption calculation model of each power supply according to the corresponding relation between the type of the power supply and the power consumption calculation model.
And S802, inputting the operation parameters of each power supply into the corresponding target power consumption calculation model to perform power consumption calculation to obtain the power consumption of each power supply.
In this embodiment, because the characteristics of the LDO, the DCDC, the system main power supply, and the like are different, different power consumption models are required to calculate the power consumption for different operating parameters of the power supply. The corresponding relation between the type of each power supply and the power consumption calculation model can be preset, after the operation parameters of each power supply are obtained, the target power consumption calculation model of each power supply is determined according to the corresponding relation, the operation parameters of each power supply are input into the corresponding target power consumption calculation model for power consumption calculation, and the power consumption of each power supply is obtained. Different power consumption calculation models are set for different power supply types, so that the accuracy of power consumption calculation is improved.
On the basis of the above embodiment, in order to better perform joint analysis on the analysis result of the power supply and the software tracking result, the analysis result may be output to an external device. Optionally, the power management method further includes: outputting the analysis result to an external device; the analysis result comprises current information and/or power consumption information carrying a first time stamp; and the external equipment is used for aligning the first time stamp with the second time stamp in the software tracking result, and determining and displaying current information and/or power consumption information of the corresponding power supply in the execution process of each task.
In this embodiment, when the operating parameters of each power supply of the power supply management device are measured and analyzed, the software of the system is also tracked and measured to obtain a software tracking result. The analysis result of the operation parameter of each power supply is output to the external equipment, the external equipment performs joint analysis on the operation parameter of the power supply and the software tracking result, for example, the first time stamp and the second time stamp are aligned, the power supply data of the aligned first time stamp and the software operation data of the aligned second time stamp are correspondingly displayed and analyzed, a user can conveniently check the software operation state, the problems of whether faults occur in the software operation process or not can be analyzed according to the power supply data of the aligned first time stamp and the software operation data of the aligned second time stamp, the analysis result of the operation parameter of the power supply and the software tracking result are subjected to joint analysis, and therefore the reliability of software operation is guaranteed.
It should be understood that although the various steps in the flowcharts of fig. 6-8 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Also, at least some of the steps in fig. 6-8 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least some of the sub-steps or stages of other steps.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (17)
1. The power supply management device is characterized by comprising a test unit, wherein the test unit comprises at least one data acquisition module and at least one data analysis module;
the data acquisition module is used for acquiring the operating parameters of the power supply in the power supply management device;
the data analysis module is used for managing and analyzing the operation parameters output by the data acquisition module to obtain an analysis result; the analysis results include a first timestamp that is used to align with a second timestamp in the software tracking results.
2. The power management device of claim 1, wherein the at least one data collection module comprises a linear low dropout regulator (LDO) data collection module and/or a direct current power converter (DCDC) data collection module;
the LDO data acquisition module is used for acquiring the operation parameters of the LDO in the power management device;
the DCDC data acquisition module is used for acquiring the operating parameters of the DCDC in the power management device.
3. The power management device of claim 2, wherein the LDO data collection module is further configured to collect an operating parameter of a total system power in the power management device.
4. The power management device of claim 2 or 3, wherein the LDO data collection module comprises at least one of a current sensor, a voltage sensor, and a current mirror circuit.
5. The power management device according to claim 2 or 3, wherein the DCDC data collection module comprises a current mirror circuit.
6. The power management device according to claim 2 or 3, wherein the DCDC data acquisition module is further configured to obtain a third timestamp, and calibrate an internal clock of the DCDC data acquisition module according to the third timestamp; the third timestamp is a timestamp for acquiring an operating parameter of the DCDC.
7. The power management device according to claim 1 or 2, wherein the at least one data analysis module comprises a current analysis module and/or a power consumption analysis module;
the current analysis module is used for analyzing current data in the operating parameters output by the data acquisition modules;
the power consumption analysis module is used for calculating the power consumption of each power supply according to the operation parameters output by each data acquisition module.
8. The power management device of claim 7, wherein the current analysis module is configured to analyze the current data in the operating parameters output by each of the data acquisition modules, and comprises:
the current analysis module is used for acquiring current data of each power supply in the power supply management device according to the operation parameters output by each data acquisition module, analyzing the current data of each power supply according to a preset format and generating a current measurement information table.
9. The power management device of claim 7, wherein the power consumption analysis module is configured to calculate power consumption of each power supply according to the operation parameters output by each data acquisition module, and includes:
the power consumption analysis module is used for determining the operating parameters of each power supply according to the operating parameters output by each data acquisition module, determining a target power consumption calculation model of each power supply according to the corresponding relation between the type of the power supply and the power consumption calculation model, and inputting the operating parameters of each power supply into the corresponding target power consumption calculation model for power consumption calculation to obtain the power consumption of each power supply.
10. The power management device according to claim 1 or 2, wherein the test unit further comprises a storage module, and the storage module is configured to store configuration information of each data acquisition module, configuration information of each data analysis module, and the operation parameters acquired by each data acquisition module.
11. A power management method applied to the power management apparatus according to any one of claims 1 to 10, the power management method comprising:
collecting operating parameters of each power supply in the power supply management device;
managing and analyzing the operation parameters of each power supply to obtain an analysis result; the analysis results include a first timestamp that is used to align with a second timestamp in the software tracking results.
12. The method according to claim 11, wherein the collecting the operating parameters of each power supply in the power management device comprises:
and acquiring the operation parameters of at least one power supply of LDO, DCDC and the total power supply of the system in the power management device.
13. The power management method of claim 12, further comprising:
acquiring a third timestamp; the third timestamp is a timestamp for acquiring the operating parameters of the DCDC;
and calibrating the internal clock of the DCDC data acquisition module according to the third timestamp.
14. The method according to claim 11, wherein the performing management analysis on the operating parameters of the power supplies comprises:
analyzing current data in the operating parameters of each power supply; and/or the presence of a gas in the gas,
and calculating the power consumption of each power supply according to the operation parameters of each power supply.
15. The method according to claim 14, wherein analyzing the current data in the operating parameters of the power supplies comprises:
obtaining current data of each power supply from operating parameters of each power supply;
and analyzing the current data of each power supply according to a preset format to generate a current measurement information table.
16. The method of claim 14, wherein said calculating power consumption of each of said power sources based on said operating parameters of each of said power sources comprises:
determining a target power consumption calculation model of each power supply according to the corresponding relation between the type of the power supply and the power consumption calculation model;
and inputting the operating parameters of each power supply into a corresponding target power consumption calculation model for power consumption calculation to obtain the power consumption of each power supply.
17. The method of power management as claimed in claim 11, wherein the method further comprises:
outputting the analysis result to an external device; the analysis result comprises current information and/or power consumption information carrying the first timestamp; and the external equipment is used for aligning the first time stamp with a second time stamp in the software tracking result, and determining and displaying current information and/or power consumption information of a corresponding power supply in the execution process of each task.
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