CN112996035A - Multi-factor-based method and system for evaluating power consumption of Internet of things terminal - Google Patents
Multi-factor-based method and system for evaluating power consumption of Internet of things terminal Download PDFInfo
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- CN112996035A CN112996035A CN202110176900.1A CN202110176900A CN112996035A CN 112996035 A CN112996035 A CN 112996035A CN 202110176900 A CN202110176900 A CN 202110176900A CN 112996035 A CN112996035 A CN 112996035A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
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Abstract
A method and a system for evaluating the power consumption of an Internet of things terminal based on multiple factors comprise the following steps: analyzing and recording the possible working state of the terminal of the Internet of things; if the terminal has the additional function state, determining the periodic response time, the response frequency and the duration of each additional function by combining the application scene requirements and the user behavior statistics; and starting to measure after the terminal is stably connected and enters a standby state, recording a power-time curve, and calculating the standby power consumption. And after the terminal is stably connected and enters an additional function state, exciting the steady-state additional function and the transient-state additional function, simultaneously exciting any one of the steady-state additional function and the transient-state additional function, recording a time curve of power, and calculating the power consumption of the additional function. And after the power consumption of all the additional functions is tested and calculated, calculating to obtain a terminal power consumption value.
Description
Technical Field
The invention relates to the field of Internet of things, in particular to power consumption evaluation of an Internet of things terminal.
Background
The popularization and the application of wireless technologies such as WiFi, Bluetooth, ZigBee, LoRa, NB-IoT, 5GNR and the like lay the foundation of the interconnection of everything. Therefore, the Internet of things is produced at the same time and is expanded at a high speed. The terminals of the internet of things with various functions are also emerging in succession and are increased explosively. In the face of a sea-level Internet of things terminal, the power consumption of the terminal needs to be measured and optimized, and the overall power consumption is reduced. Meanwhile, the power consumption of the mobile and wearable internet of things terminal is measured and optimized, and the service life or the endurance time of the mobile and wearable internet of things terminal can be prolonged.
The power consumption of the terminal of the Internet of things is the power consumption of a hardware circuit when the terminal works normally. The power consumption factors affecting the terminal are numerous and are mainly determined by three factors, namely circuit components, working conditions and external environment. The circuit assembly directly influences the power consumption of the terminal due to the configuration of components. The terminal services and functions form various working conditions according to the response of the time sequence, thereby influencing the power consumption of the terminal. The external environment includes environment such as temperature and humidity and electromagnetic signal environment. The external environment influences the work of the circuit assembly through environmental conditions such as temperature and humidity, influences the actual working condition under the electromagnetic interference and signal intensity difference, and then influences the power consumption of the terminal.
Under the influence of actual working conditions and external environmental factors, the distribution of power consumption values of the same-type mass Internet of things terminals is similar to normal distribution. Generally, the power consumption evaluation of the terminal of the internet of things is usually performed in several main operating states (standby state, data transmission state, etc.). Experimenters limit the power consumption value of the terminal of the Internet of things in the working state and ideally derive and calculate the average power consumption of the life cycle or the endurance time of the terminal. The test value of the power consumption in the ideal state is close to the lower limit value of the power consumption distribution, and the test value is not suitable to be used as a typical value because the difference of the actual environment and the working condition is ignored, represents the power consumption of the internet of things terminal of the model and is used for transverse comparison with the power consumption of other internet of things terminals.
The invention content is as follows:
the invention provides a multi-factor Internet of things terminal power consumption evaluation method and a system based on a model general evaluation method. By the method and the system, the power consumption condition of the Internet of things terminal can be effectively evaluated, and the method and the system are used for evaluating the power consumption and the cruising ability of the same type of Internet of things terminal.
Drawings
Fig. 1 is a power consumption distribution diagram of an internet of things terminal.
Fig. 2 is a schematic flow diagram of a power consumption evaluation method of the internet of things provided by the invention.
Fig. 3 is a schematic structural diagram of a system for testing power consumption of an internet of things terminal provided by the invention.
Detailed Description
The present invention will now be described in detail with reference to the drawings, wherein the specific embodiments are shown and described, simply by way of illustration and not by way of limitation.
Fig. 1 is a power consumption distribution diagram of an internet of things terminal. The similar terminal samples of the Internet of things are large enough, in actual work, power consumption of each terminal is random and meets independent same distribution, and power consumption value distribution of the similar terminal samples of the Internet of things is approximately in normal distribution. When the terminal works under normal working conditions and external environment conditions, the terminal power consumption value approaches to the expected value Pmid of the distribution of the terminal power consumption value, and the terminal power consumption value under the conditions can be used as a typical value for comparing with the typical values of the other terminal power consumption.
Fig. 2 is a schematic flow diagram of a power consumption evaluation method of the internet of things provided by the present invention, and a specific implementation manner of the power consumption evaluation of the terminal is as follows:
in step S01, according to the product function list provided by the manufacturer and the application scenario requirements of the internet of things, the possible working state of the terminal is analyzed and recorded.
In step S02, if the terminal has the additional function status, the periodic response time, the response frequency, and the duration of each additional function are determined according to the application scenario requirement and the user behavior statistics.
In step S03, the instrument is arranged as per fig. 3. When the terminal is normally powered on and started up and connected to the network, the terminal starts to measure after being stably connected and entering a standby state. In the measuring process, the terminal is not operated and is allowed to operate autonomously. The measurement time must cover at least 1 heartbeat interval and record the power-time curve.
In step S03, the heartbeat interval period is equal to the time interval between two consecutive heartbeat packets of the terminal, which can be directly read out on the power-time curve.
The standby power consumption is calculated as follows:
wherein
Indicating standby power consumption, TminIs the heartbeat interval period, P, of the terminalsIs the power of the s-th sample point, tsRepresenting a sampling time interval.
After the standby power consumption test is completed in step S04, the average power consumption in all the additional function states needs to be measured.
In step S04, when the power consumption of the transient additional function is tested and the terminal operates stably, the transient additional function is activated and the power consumption of the terminal circuit is measured by sampling. And the test duration at least covers 1 time of complete transient additional function response state, records a time curve of power, and calculates the power consumption of the transient additional function.
In step S04, when the power consumption of the steady state additional function is tested, the steady state additional function is activated and the power consumption of the terminal circuit is sampled and measured after the terminal operates stably. And the response continuous state of the steady-state additional function is monitored for at least 5min, a time curve of power is recorded, and the power consumption of the steady-state additional function is calculated.
Wherein the additional function power consumption is calculated according to the following formula:
wherein the content of the first and second substances,
for power consumption in the additional functional state, tiAdditional function response/duration.
When all the additional function power consumption tests and calculations are completed, the process proceeds to step S05. Calculating a terminal power consumption value according to the following formula:
it should be understood that the above-mentioned embodiments are not intended to limit the scope of the invention, and all modifications, substitutions, and improvements that are within the spirit and principle of the invention are included in the scope of the invention.
Fig. 3 is a schematic structural diagram of a system for testing power consumption of an internet of things terminal, which is provided by the invention and comprises a direct-current power supply module, a terminal module and a power or volt-ampere analyzer module. The direct current power supply module is connected to the terminal electrode through a power line and provides a normally working voltage source for the terminal. And the power analyzer or the volt-ampere analyzer samples power or current when the terminal normally works.
Claims (9)
1. A multi-factor-based Internet of things terminal power consumption evaluation method is divided into a standby state and an additional function state according to a product function list, Internet of things application scene conditions and typical values of actual power consumption distribution of the Internet of things terminal power consumption in a [ Pmin, Pmax ] interval with a confidence coefficient of 0.95,
analyzing and recording the possible working state of the terminal of the Internet of things;
if the terminal has the additional function state, determining the periodic response time, the response frequency and the duration of each additional function by combining the application scene requirements and the user behavior statistics;
and starting measurement after the terminal is stably connected and enters a standby state, covering at least 1 heartbeat interval during measurement, recording a power time curve, and calculating standby power consumption.
2. And after the terminal is stably connected and enters an additional function state, exciting the steady-state additional function and the transient-state additional function, simultaneously exciting any one of the steady-state additional function and the transient-state additional function, recording a time curve of power, and calculating the power consumption of the additional function.
3. And after the power consumption of all the additional functions is tested and calculated, calculating to obtain a terminal power consumption value.
4. The power consumption evaluation method for the terminal of the internet of things based on the multi-factor according to claim 1, wherein the steady-state additional function and the transient-state additional function are activated when the terminal is connected stably and enters the additional function state,
if the transient additional function is excited, the monitoring duration at least covers 1 time of complete response state of the transient additional function, a time curve of power is recorded, and the power consumption of the transient additional function is calculated.
5. If the steady state additional function is activated, the response duration state is monitored, the time curve of the power is recorded, and the power consumption of the steady state additional function is calculated.
6. The method for evaluating the power consumption of the terminal of the internet of things based on the multiple factors according to claim 1, wherein the measurement is started when the terminal is stably connected and enters a standby state,
the measurement time length is covered by at least 1 heartbeat interval, and a power time curve is recorded; the heartbeat interval period is equal to the time interval of two continuous heartbeat packets of the terminal, and can be directly read on the power time curve.
7. According to the multi-factor internet-of-things networking terminal power consumption evaluation method, when the terminal is connected stably and enters the additional function state, the steady-state additional function and the transient-state additional function are activated, wherein when the steady-state additional function is activated, the duration of the response duration state is monitored for at least five minutes, and the average power consumption is calculated.
8. The multi-factor internet-of-things networking terminal power consumption evaluation system according to claim 1, comprising a direct-current power supply module, a terminal module, and a power or volt-ampere analyzer module.
9. The multi-factor-based power consumption evaluation method for the internet of things networking terminal, according to claim 1, wherein the calculation method for obtaining the power consumption evaluation of the internet of things networking terminal according to the functional state of the internet of things terminal is as follows:
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115792364A (en) * | 2023-02-07 | 2023-03-14 | 南京美斯玛微电子技术有限公司 | Power consumption calculation method based on standby state analysis |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110418315A (en) * | 2019-07-24 | 2019-11-05 | 北京市天元网络技术股份有限公司 | A method of for calculating and managing internet-of-things terminal power consumption |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110418315A (en) * | 2019-07-24 | 2019-11-05 | 北京市天元网络技术股份有限公司 | A method of for calculating and managing internet-of-things terminal power consumption |
Non-Patent Citations (1)
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| 王平松: "物联网终端功耗评估方法研究", 《电子质量》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115792364A (en) * | 2023-02-07 | 2023-03-14 | 南京美斯玛微电子技术有限公司 | Power consumption calculation method based on standby state analysis |
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