WO2011144098A2

WO2011144098A2 - Mobile terminal and load power measuring method thereof

Info

Publication number: WO2011144098A2
Application number: PCT/CN2011/074722
Authority: WO
Inventors: 邹杰; 陈剑华; 周澎涛; 阳军
Original assignee: 华为终端有限公司
Priority date: 2011-05-26
Filing date: 2011-05-26
Publication date: 2011-11-24
Also published as: WO2011144098A3; CN102246049A; CN102246049B

Abstract

A mobile terminal and load power measuring method thereof are provided in the present invention, wherein the mobile terminal contains a power source management module, a load to be measured and a power measuring module. An output end of the power source management module is connected to an input end of the load to be measured, and a measuring voltage output by the power measuring module is higher than a work voltage output by the power source management module. During the measuring course of the embodiments of the invention, the power measuring module supplies power for the load to be measured, and the measuring voltage at which the power measuring module supplies power for the load is higher than the work voltage output by the power source management module, so that the output current of the power source management module is cut off, and it is convenient to measure the real-time power of the load to be measured of a product, thus no voltage division or current division is redundant, and the power measuring result is exact; after the end of the measuring, the power measuring module can shut off the load power supply, and the power source management module continues to supply power, so as to stop the work of the power measuring module or turn off the power measuring module, and reduce the consuming energy of a system; during the whole measuring course, the normal work of the load is not effected.

Description

Mobile terminal and its load power measurement method

The embodiments of the present invention relate to the field of communications technologies, and in particular, to a mobile terminal and a method for measuring load power thereof. Background technique

With the development of technology, mobile terminals are becoming more and more popular, and are moving toward smarter, higher integration, stronger functions, and higher energy consumption. In this process, the business integration of the terminal products is also getting higher and higher, such as: Now the smart phone collects video and video calls, SMS, multimedia, Internet, video games, photo, recording, computing, file management, etc. One. While bringing more convenience to users, the consumption of power by mobile terminals has also increased exponentially. High energy consumption poses more severe challenges to the reliability design of the battery and the heat dissipation of the product, and the consumption of environmental resources is also increasing.

It is imperative to carry out energy-saving design for mobile terminals. One way to save energy is to present the real-time energy consumption data of each component of the product to the user, so that the user can take corresponding energy-saving measures according to the energy consumption data. In the prior art, the real-time energy consumption data collection method generally adopts a small detection resistor in series between the power source and the load, and the power consumption of the branch where the detection resistor is located is obtained by measuring the current flowing through the detection resistor.

There is a method of obtaining power consumption by detecting a resistance current, increasing the detection resistance to increase the energy consumption, and the measurement result is inaccurate due to the partial pressure of the detection resistor. Summary of the invention

The invention provides a mobile terminal and a load power measuring method thereof, which are used to solve the defects of high energy consumption and inaccuracy in the method for measuring power of a load in the prior art, and the load power measurement result is accurate and the energy consumption is small. An embodiment of the present invention provides a mobile terminal, including: a power management module, a load to be tested, and a power measurement module, where an output end of the power management module is connected to an input end of the load to be tested, and the output of the power measurement module is output The voltage is higher than the operating voltage output by the power management module;

The power management module is configured to output a working voltage to the load to be tested, and supply power to the load to be tested, and measure a real-time voltage input to the load to be tested, if the real-time voltage is higher than the power management module Outputting the operating voltage, the output current of the power management module is turned off;

The power measurement module is configured to: if a measurement instruction is received, output a measurement voltage to the load to be tested, measure an output current of the power measurement module, and calculate an output current according to the power measurement module and the measurement voltage Describe the power consumption of the load to be measured.

The embodiment of the present invention further provides a mobile terminal load power measurement method, including: when a power measurement module receives a measurement instruction, outputting a measurement voltage to a load to be tested that is normally powered by a power management module, where the measurement voltage is higher than the power supply The operating voltage output by the management module, the output current of the power management module is cut off;

The power measurement module measures an output current of the power measurement module, and calculates a power consumption of the load to be tested according to an output current and a measurement voltage of the power measurement module.

The mobile terminal and the load power measuring method thereof provided by the present invention, the power measuring module supplies power to the load to be tested during measurement, and the measured voltage of the power measuring module is greater than the working voltage of the power management module, so that the current of the power management module is cut off, thereby It can conveniently measure the real-time power of the tested load of the product without excess voltage or shunt, and the obtained power measurement result is accurate; and, after the measurement is finished, the power measurement module can cut off the power supply to the load, and the power management module Continue to supply power, the power measurement module can be stopped or the power measurement module can be turned off, so the system consumes less energy; in addition, the normal operation of the load is not affected during the entire measurement process. DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic structural diagram of a mobile terminal according to Embodiment 1 of the present invention;

2 is a schematic structural diagram of a mobile terminal according to Embodiment 2 of the present invention;

3 is another schematic structural diagram of a mobile terminal according to Embodiment 2 of the present invention;

4 is a flowchart of a method for measuring load power of a mobile terminal according to Embodiment 4 of the present invention; FIG. 5 is a flowchart of a method for measuring load power of a mobile terminal according to Embodiment 5 of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Embodiment 1

1 is a schematic structural diagram of a mobile terminal according to Embodiment 1 of the present invention. As shown in FIG. 1, the mobile terminal includes: a power management module 11, a load to be tested 13, and a power measurement module 15.

The output end of the power management module 11 is connected to the input end of the load 13 to be tested, and the measured voltage output by the power measuring module 15 is higher than the working voltage output by the power management module 11;

The power management module 11 is configured to output a working voltage to the load 13 to be tested, and supply power to the load 13 to be tested, and measure a real-time voltage input to the load 13 to be tested, if the real-time voltage is higher than the current The output voltage output by the power management module 11 is used to cut off the output current of the power management module 11; the power management module in the embodiment of the invention may use a switching power supply or a low dropout voltage A linear regulator (low dropout regulator; LDO for short) can keep its own output voltage unchanged when the output operating voltage is lower than the external voltage, and turn off its own output current. Generally, the power management module 11 can be connected to a power source of the mobile terminal, such as a battery, a large-capacity capacitor, an external AC or a DC power source, to obtain a voltage that can be output.

The power measurement module 15 is configured to: when receiving the measurement instruction, output a measurement voltage to the load 13 to be tested, measure an output current of the power measurement module 15, and output the current according to the power measurement module 15 and the The measured voltage calculates the power consumption of the load 13 to be tested.

Specifically, the power management module 11 can supply power to the load 13 to be tested when the system is working normally, and the power measurement module 15 can measure the output power of the power management module 11. The measurement module has the dual function of supplying power to the load 13 to be tested and testing its own output. The measurement voltage that can be output by the power measurement module 15 is higher than the operating voltage output by the power management module 11. When the measurement is needed, the power measurement module 15 receives the measurement command and outputs a measurement voltage that is slightly higher than the operating voltage output by the power management module 11. Therefore, the power supply module 15 can provide a power supply power slightly larger than the power required for the normal operation of the load 13 to be tested. At this time, the output voltage of the power management module 11 remains unchanged, but the power management module 11 automatically reduces the output current. Zero, such that the current consumed by the load 13 to be tested is all supplied by the power measurement module 15. Moreover, since the voltage difference between the power measurement module 15 and the power management module 11 is not large, the current output by the power measurement module 15 is not backflushed to the power management module 11 (if the LD0 power supply or the switching power supply is used, due to its working principle, Further ensuring that the current will not be reversed), the current output by the power measuring module 15 is equal to the current consumed by the load 13 to be tested. The power measuring module 15 measures the current output by itself, and combines the voltage output by itself to calculate the power consumed by the load 13 to be tested. After the measurement by the power measurement module 15 is completed, the power supply for the load 13 to be tested can be cut off. Since the power management module 11 maintains the output voltage before the measurement, the current consumed by the load can be automatically switched to be supplied by the power management module 11. Of course, in order to ensure the normal operation of the load 13 to be tested during the switching, the current consumed by the load may be switched to be supplied by the power management module 11, and then the power measurement module 15 stops outputting the measured voltage, and completely stops the load 13 to be tested. powered by. During the whole measurement process, it is not necessary to turn off the power management module 1 1 , so that the power measurement module 15 is not required to be synchronized with the power management module 1 1 , so that the power supply of the load to be tested 1 3 continues, and the load to be tested 1 3 does not need to be interrupted. Power supply, the service of the load to be tested 13 is not affected, so this measurement will not have any impact on the entire system, and will not cause system instability.

In the mobile terminal of the embodiment, the power measurement module supplies power to the load to be tested during measurement, and the measured voltage of the power measurement module is greater than the operating voltage of the power management module of the system, so that the current of the power management module of the system is cut off, thereby being convenient. Measuring the real-time power of the tested load of the product without excess voltage or shunt, the obtained power measurement result is accurate; and, after the measurement is finished, the power measurement module can cut off the power supply of the load to be tested, and the power management module of the system Continue to supply power, the power measurement module can be stopped or the power measurement module can be turned off, so the system consumes less energy; in addition, the normal operation of the load is not affected during the entire measurement process.

Embodiment 2

2 is a schematic structural diagram of a mobile terminal according to Embodiment 2 of the present invention. As shown in FIG. 2, the power measurement module 15 of the mobile terminal may include: a main control unit 21, a programmable power supply unit 23, and a current measuring unit 25, The main control unit 21 is respectively connected to the programmable power supply unit 23 and the current measuring unit 25, and the programmable power supply unit 23 and the current measuring unit 25 are connected; wherein, the main control unit can be implemented on a common CPU, for example: in the QSC8650 Running the application to implement the main control unit; the programmable power supply unit can be a flexible switching power supply or LD0 for output voltage and current; the current measuring unit can be composed of a Hall element and/or a precision resistor and an AD converter.

The main control unit 21 is configured to instruct the programmable power supply unit 23 to output a set measurement voltage according to the received measurement instruction; according to the output current of the programmable power supply unit 23 and the output of the programmable power supply unit 23 Measuring the voltage to calculate the power consumption of the load to be tested 13;

The programmable power supply unit 23 is configured to output a measured voltage or stop an output voltage according to a command of the main control unit 21;

The current measuring unit 25 is configured to measure an output current of the programmable power supply unit 23, and report the measured output current of the programmable power supply unit 23 to the main control unit 21. Further, the programmable power supply unit 23 can be connected to the load to be tested 13; the programmable power supply unit 23 is specifically configured to: output a measurement voltage to the load to be tested 13 according to a command of the main control unit 21.

FIG. 3 is a schematic diagram of another structure of a mobile terminal according to Embodiment 2 of the present invention. The power measurement module 15 of the mobile terminal may further include:

The multiplexer 27 is respectively connected to the main control unit 21, the programmable power supply unit 23, and each load in the system, and is configured to: according to the command of the main control unit 21, the programmable power supply unit 23 and the to-be-tested Load 1 3 is connected or disconnected.

After the measurement result is obtained, the main control unit 21 is further configured to: switch the power supply of the load to be tested 1 to the power management module 1 1 ; and command the programmable power supply unit 23 to stop outputting the voltage. Specifically, the main control unit 21 may gradually reduce the output voltage of the programmable power supply unit 23 to be slightly lower than the output voltage of the power management module, and after maintaining the power supply for the load 13 to be tested, the power supply is switched to the power supply. The management module 11 further commands the programmable power supply unit 23 to stop outputting the voltage; the commanded power supply unit 23 may be first commanded to stop the output voltage, and then the power supply of the load to be tested 13 is switched to the power management module 11 .

Further, the difference between the measured voltage output by the power measuring module 15 and the operating voltage output by the power management module 11 is less than 10% of the operating voltage.

Specifically, in a complex electronic system, the power measurement module 15 can complete each of the to-be-measured loads 13 that need to be measured in the system, for example: real-time measurement of energy consumption of multiple system power supply branches. The power measurement module 15 is composed of a main control unit 21, a programmable power supply unit 23, a current measuring unit 25, and a multiplexer 27. The main control unit 21 is responsible for the control of the entire real-time power measurement module 15, receives the instructions of the upper system, converts the instructions into the control of the internal programmable power supply, the current measuring unit 25, the multiplexer 27 of the real-time power measurement module 15, and the measurement The results are reported to the upper system. The upper system mainly includes applications that require the results of load power measurement. Some applications can also display the results of load power measurement to the user. The upper system can also use the energy consumption data for fault diagnosis. Fault detection procedures, etc. The programmable power supply unit 23 can be raised according to the command of the main control unit 21. For the power supply output, the output voltage and current meet the requirements of the main control unit 21, and match the voltage and current required by the measured system power supply branch. The multiplexer 27 can control the connection and disconnection between the output of the programmable power supply unit 23 and the system power supply branch to be measured. Connect to the system power supply branch that needs to be measured during measurement, and disconnect the connection after the measurement is completed. The current measuring unit 25 can measure the output current of the programmable power supply. After the multiplexer 27 connects the output of the programmable power supply unit 23 to the system power supply branch to be measured, the output of the programmable power supply is measured, and the measured value is fed back to the main control unit 21 .

The measuring process is specifically: when the main control unit 21 receives the measurement command of the upper system to measure a certain system power supply branch X, the commanded control power supply unit 23 outputs the required measurement voltage (slightly higher than the system power supply branch X) The operating voltage), and commands the multiplexer 27 to connect the output of the programmable power supply unit 23 to the system supply branch x. The main control unit 21 then commands the current measuring unit 25 to measure the output current of the programmable power supply unit 23. The current measuring unit 25 feeds back the measurement result to the main control unit 21, and after receiving the measurement result fed back by the current measuring unit 25, the main control unit 21 commands the programmable power supply unit 23 to stop the voltage and current output, and commands the multiplexer 27 to turn off the programmable power supply. The output of the unit 23 is connected to the system power supply branch X (at this time, the power management module 11 can automatically restore power to the branch X), and then the main control unit 21 can be based on the output voltage and current measuring unit 25 of the programmable power supply unit 23. The feedback current value calculates the power value consumed by the system power supply branch X. Finally, the main control unit 21 can apply the power value to the upper layer system.

The following is a verification result of the working principle of the mobile terminal in the embodiment of the present invention:

First, the PM7540's WLAN LD0 (power management module) is used for measurement. After the programmable power supply unit is connected, there is almost no shunting in the power management module. Specifically, the first example, the power supply management module is used to supply a static load current voltage of 41. 9 mA / 2. 89 V, adding a programmable power supply unit as an external DC source supply current voltage is 42. 5 mA / 2. 95 V, almost no back irrigation Example 2: Power supply management module board power supply static load current voltage is 29. 7 mA / 2. 94 V, adding a programmable power supply unit as an external DC source supply current voltage is 29. 9 mA / 2. 99V, almost no back irrigation Current, external DC source power consumption is equal to the power consumption of the power management module board.

Secondly, when the light load (lmA ~ 10mA) is added, the power of the external program-controlled power supply unit is added and removed. Pressure, the power supply branch will not have transient overshoot, although there will be a voltage drop, but it will not affect the normal operation of the load. Specifically, there is a 5ms drop when the power supply to the external program-controlled power supply unit is connected, and the power supply of the external program-controlled power supply unit is removed. There was a 50ms drop. Under the QSC8650 + PM7540, the mobile terminal provided by the embodiment of the present invention has no influence on the system when testing the two power inputs of the QSC8650.

In addition, under heavy load (50% Imax ~ 75% Imax), adding, ·| waiving the external program-controlled power supply unit, the power supply branch will not have transient overshoot, although there will be a voltage drop, but it will not affect The load is working properly. Specifically, there is a 5ms drop when the power supply to the external program-controlled power supply unit is connected, and a 50ms drop when the power supply to the external program-controlled power supply unit is removed. Under the 8650 + 7540, the mobile terminal provided by the embodiment of the present invention has no influence on the system when testing the A and P currents.

In addition, the current flowing into the power management module (LD0) may have a relationship with the voltage of the programmable power supply unit external to the power management module (LD0), for example: at 50 mA quiescent current, the voltage of the programmable power supply unit is higher than Power supply management module (LD0) output voltage 0. 01V, system power supply no current output, automatic switching to the program-controlled power supply unit; high current (225mA), critical about 0. 04 ~ 0. 05V, that is, the voltage of the programmable power supply unit The output voltage of the power management module (LD0) is 0. 04 ~ 0. 05V. Preferably, the difference between the measured voltage output by the programmable power supply unit and the operating voltage output by the power management module is less than 10% of the operating voltage.

In the mobile terminal of the embodiment, the power measurement module supplies power to the load to be tested during measurement, and the measured voltage of the power measurement module is greater than the working voltage of the power management module, so that the current of the power management module is cut off, so that the product can be conveniently measured. The real-time power of the load is measured, and there is no excess voltage or shunt, and the obtained power measurement result is accurate; and, after the measurement is completed, the power measurement module can cut off the power supply of the load to be tested, and the power management module continues to supply power, and the power can be made. The measurement module stops working or the power measurement module is turned off, so the system consumes less energy. With the multi-way switch, the user can make measurement decisions according to the real-time energy consumption information provided by the product and its own use requirements; and the measurement circuit is simple and reliable, and does not affect the product. In addition, during the entire measurement process, the normal operation of the load is not affected. Embodiment 3

A third embodiment of the present invention provides a mobile terminal, where the mobile terminal is configured with any one of the structures according to the embodiment of the present invention. The load to be tested in the mobile terminal is a branch of the mobile terminal that needs to detect real-time energy consumption, for example: any power supply branch of a player such as a player, a Bluetooth, or a GPS.

In the mobile terminal of the embodiment, the power measurement module supplies power to the load to be tested during measurement, and the measured voltage of the power measurement module is greater than the working voltage of the power management module, so that the current of the power management module is cut off, so that the product can be conveniently measured. The real-time power of the load is measured, and there is no excess voltage or shunt, and the obtained power measurement result is accurate; and, after the measurement is completed, the power measurement module can cut off the power supply of the load to be tested, and the power management module continues to supply power, and the power can be made. The measurement module stops working or the power measurement module is turned off, so the system consumes less energy; in addition, the normal operation of the load is not affected during the entire measurement process.

Embodiment 4

4 is a flowchart of a method for measuring load power of a mobile terminal according to Embodiment 4 of the present invention. As shown in FIG. 4, the method for measuring load power of the mobile terminal includes:

Step 101: When the power measurement module receives the measurement instruction, output a measurement voltage to the load to be tested that is normally powered by the power management module, where the measurement voltage is higher than an output voltage output by the power management module, and the output of the power management module Current cutoff

Step 102: The power measurement module measures an output current of the power measurement module, and calculates a power consumption of the load to be tested according to an output current and a measurement voltage of the power measurement module.

The power measurement module in the embodiment of the invention has a power output function. When measuring, the voltage output of the power measurement module is closed with the output end of the system, and the input end of the load to be tested is connected, because the measurement voltage output by the power measurement module is slightly larger than The working voltage output by the power management module, the output current of the power measurement module is not reversely injected into the power management module, and the output current of the power management module is automatically turned off to zero. At this time, the output current of the measuring unit is read, that is, For the current consumed by the load, the product of the voltage and current of the output of the power measurement module is the power consumed by the load. In the embodiment, the power measurement module supplies power to the load to be tested, and the measured voltage of the power measurement module is greater than the working voltage of the power management module, so that the current of the power management module is cut off, and the real-time measurement of the load to be tested can be conveniently performed. The power, without excess voltage or shunt, the obtained power measurement result is accurate; and, after the measurement is finished, the power measurement module can cut off the power supply of the load to be tested, and the power management module continues to supply power, so that the power measurement module can be stopped. Or the power measurement module is turned off, so the system consumes less energy; in addition, the normal operation of the load is not affected during the entire measurement process.

Embodiment 5

FIG. 5 is a flowchart of a method for measuring load power of a mobile terminal according to Embodiment 5 of the present invention. Referring to the foregoing Embodiment 2, the power measurement module may include: a main control unit, a programmable power supply unit, and a current measurement unit, where the main control unit respectively Connecting the programmable power supply unit and the current measuring unit, the programmable power supply unit and the current measuring unit are connected. On the basis of the fourth embodiment, as shown in FIG. 5, the step 110 of the mobile terminal load power measuring method may specifically include :

Step 201: If the main control unit receives the measurement instruction, instruct the program control power supply unit to output the set measurement voltage according to the received measurement instruction; wherein the measurement instruction may be an upper layer system, for example: the mobile terminal sends the power measurement module For the measurement of a branch, for example: Bluetooth 3. 3V power supply input branch power measurement instructions.

Step 202: The programmable power supply unit outputs the set measurement voltage according to the command of the main control unit.

The step 202 may specifically include any of the following situations:

Case 1: The program-controlled power supply unit outputs a measurement voltage to the load to be tested according to the command of the main control unit; when only one load to be tested is included, the main control unit may directly command the output end of the programmable power supply unit to be tested. The input of the load outputs the required measured voltage to the load to be tested.

In the second aspect, the power measurement module further includes a multi-way switch, and the multi-way switch connects the program-controlled power supply unit to the load to be tested according to the command of the main control unit, and outputs a measurement voltage to the load to be tested. . When the multi-channel load to be tested is included, the main control unit commands the multiplex switch to be tested. The branch where the load is located is closed, thereby connecting the programmable power supply unit to the load to be tested, and outputting the required measurement voltage to the load to be tested.

Further, step 102 in the foregoing embodiment 5 may specifically include:

Step 203: The main control unit commands the current measuring unit to measure an output current of the programmable power supply unit.

Step 204: The current measuring unit reports the measured output current of the programmable power supply unit to the main control unit;

After step 204, the power management module can continue to be used as the power supply for the load to be tested. The specific switching can be as follows:

In a first mode, the main control unit switches the power supply of the load to be tested to the power management module, and commands the programmable power supply unit to stop outputting the voltage; this manner ensures that the load to be tested works normally during the switching process. .

Manner 2: The main control unit commands the programmable power supply unit to stop outputting the voltage, and the power management module of the load to be tested restores power to the load to be tested. In this way, when the programmable power supply unit stops outputting the voltage, the power will drop instantaneously (50ms). However, since the power supply recovers the load to be tested, the speed of the power supply is faster, which will not affect the normal operation of the load to be tested.

Step 205: The main control unit calculates a power consumption of the load to be tested according to an output current of the programmable power supply unit and a measured voltage output by the programmable power supply unit.

After the step 205, the method may further include: Step 206: Report the calculated power consumption of the load to be tested to the upper layer system.

In the embodiment, the power measurement module supplies power to the load to be tested, and the measured voltage of the power measurement module is greater than the working voltage of the power management module, so that the current of the power management module is cut off, thereby conveniently measuring the load of the product to be tested. Real-time power, without excess voltage or shunt, the obtained power measurement result is accurate; and, after the measurement is finished, the power measurement module can cut off the power supply of the load to be tested, and the power management module continues to supply power, so that the power measurement module can be stopped. Work or turn off the power measurement module, so the system consumes less energy; the user can provide real-time energy consumption according to the product The information and its own use requirements, make measurement decisions; and the measurement circuit is simple and reliable, does not affect the performance of the product; In addition, the entire measurement process does not affect the normal operation of the load.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk. It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

A mobile terminal, comprising: a power management module, a load to be tested, and a power measurement module, wherein an output end of the power management module is connected to an input end of the load to be tested, and the power measurement module outputs Measuring a voltage higher than an operating voltage output by the power management module;

The power measurement module is configured to: when receiving a measurement instruction, output a measurement voltage to the load to be tested, measure an output current of the power measurement module, and calculate an output current according to the power measurement module and the measurement voltage Describe the power consumption of the load to be measured.

The mobile terminal according to claim 1, wherein the power measurement module comprises: a main control unit, a program-controlled power supply unit, and a current measurement unit, wherein the main control unit is respectively connected to the program-controlled power supply unit and current measurement a unit, the programmable power supply unit and the current measuring unit are connected; the main control unit is configured to instruct the programmable power supply unit to output a set measurement voltage according to the received measurement instruction; according to the output current of the programmable power supply unit Calculating a power consumption of the load to be tested by using a measured voltage output by the programmable power supply unit;

The programmable power supply unit is configured to output a measured voltage or stop an output voltage according to a command of the main control unit;

The current measuring unit is configured to measure an output current of the programmable power supply unit, and report the measured output current of the programmable power supply unit to the main control unit.

The mobile terminal according to claim 2, wherein the power measurement module further comprises:

a multiplexer, connected to each of the main control unit, the programmable power supply unit, and each load in the system, for connecting or disconnecting the programmable power supply unit to the load to be tested according to the command of the main control unit .

The mobile terminal according to claim 3, wherein the main control unit is further configured to: Switching the power supply of the load to be tested to the power management module; and commanding the programmable power supply unit to stop outputting the voltage.

The mobile terminal according to claim 3, wherein a difference between a measured voltage output by the power measuring module and an operating voltage output by the power management module is less than 10% of the operating voltage.

6. A method for measuring load power of a mobile terminal, comprising:

When the power measurement module receives the measurement instruction, the measured load is output to the power supply management module, and the measured voltage is higher than the working voltage output by the power management module, and the output current of the power management module is turned off;

The method for measuring load power of a mobile terminal according to claim 6, wherein the power measurement module comprises: a main control unit, a program-controlled power supply unit, and a current measurement unit, wherein the main control unit is respectively connected to the programmable power supply a unit and a current measuring unit, wherein the programmable power supply unit and the current measuring unit are connected;

And when the power measurement module receives the measurement instruction, outputting the measurement voltage to the load to be tested that is normally powered by the power management module, including:

And if the main control unit receives the measurement instruction, instructing the programmable power supply unit to output the set measurement voltage according to the received measurement instruction;

The programmable power supply unit outputs the set measurement voltage according to the command of the main control unit.

The mobile terminal load power measurement method according to claim 7, wherein the programmable power supply unit outputs the set measurement voltage according to the command of the main control unit, including:

The programmable power supply unit outputs a measurement voltage to the load to be tested according to an instruction of the main control unit; or

The power measurement module further includes a multiplexer, and the multiplexer communicates the programmable power supply unit with the load to be tested according to a command of the main control unit, and outputs a measurement power to the load to be tested. Pressure.

The mobile terminal load power measuring method according to claim 7 or 8, wherein the power measuring module measures an output current of the power measuring module, and according to an output current and a measured voltage of the power measuring module Calculating power consumption of the load to be tested, including:

The main control unit commands the current measuring unit to measure an output current of the programmable power supply unit;

The current measuring unit reports the measured output current of the programmable power supply unit to the main control unit;

The main control unit calculates a power consumption of the load to be tested according to an output current of the programmable power supply unit and a measured voltage output by the programmable power supply unit.

The mobile terminal load power measuring method according to claim 9, wherein after the current measuring unit reports the measured output current of the programmable power supply unit to the main control unit, the method further includes:

The main control unit switches the power supply of the load to be tested to the power management module, and commands the programmable power supply unit to stop outputting the voltage; or

The main control unit commands the programmable power supply unit to stop outputting the voltage, and the power management module of the load to be tested resumes supplying power to the load to be tested.