CN107918076B - Power adapter detection method and power adapter detection device - Google Patents

Abstract

The invention discloses a power adapter detection method and a power adapter detection device, wherein the power adapter detection method includes: acquiring a first voltage value of the power adapter, wherein the first voltage value is when the power adapter is unloaded gradually increase the load resistance value of the power adapter, and detect the difference between the first voltage value and the second voltage value in real time, wherein the second voltage value is increasing the load of the power adapter The voltage value of the power adapter obtained by real-time detection in the process of the resistance value; when it is detected that the difference between the first voltage value and the second voltage value is not greater than a preset voltage threshold, record the power adapter Current load current value. The technical solution provided by the present invention can help the user to purchase a suitable power adapter and protect the consumer rights and interests of the user.

Description

A power adapter detection method and power adapter detection device

This application is a divisional application entitled "A power adapter detection method and a power adapter detection device" on June 12, 2015, the application number is 201510325205.1

technical field

The present invention relates to the technical field of power supply, in particular to a power adapter detection method and a power adapter detection device.

Background technique

The popularity of smart phones and the open development of the Android (ie android) system have led to the rapid development of mobile phones. Not only are knockoff phones emerging in an endless stream, but also the accessories of knockoffs are everywhere. Usually, the accessories that you want to buy are often expensive and not qualified. product is a pain in the ass.

In the actual work of the city, the current output by the power adapter is determined according to the load connected to the adapter (ie the mobile phone). If the current exceeds the upper limit of the current that the power adapter can provide, the power adapter will always output this maximum current. The original power adapter is equipped with a transformer, which can automatically adjust even in the case of unstable voltage, which is safer. It is not the original charger, especially the cheap copycat power adapter, which lacks a protection circuit and cannot guarantee the stability of the current during charging. , it is easy to burn out the battery, shorten the service life of the battery, and even have the danger of explosion.

At present, there is no relevant technical solution that can help users purchase power adapters, so that it is difficult to protect the consumer rights and interests of users.

SUMMARY OF THE INVENTION

The present invention provides a power adapter detection method and a power adapter detection device, which are used to help a user choose a suitable power adapter and protect the consumer rights and interests of the user.

A first aspect of the present invention provides a power adapter detection method, including:

acquiring a first voltage value of the power adapter, wherein the first voltage value is a voltage value when the power adapter is not loaded;

Gradually increase the load resistance value of the power adapter, and detect the difference between the first voltage value and the second voltage value in real time, wherein the second voltage value is in the process of increasing the load resistance value of the power adapter The voltage value of the power adapter obtained by real-time detection;

When it is detected that the difference between the first voltage value and the second voltage value is not greater than a preset voltage threshold, record the current load current value of the power adapter.

A second aspect of the present invention provides a power adapter detection device, comprising:

an acquiring unit, configured to acquire a first voltage value of the power adapter, wherein the first voltage value is a voltage value when the power adapter is not loaded;

A load adjustment voltage detection unit, configured to gradually increase the load resistance value of the power adapter, and detect the difference between the first voltage value and the second voltage value in real time, wherein the second voltage value is increasing the The voltage value of the power adapter obtained by real-time detection in the process of the load resistance value of the power adapter;

A recording unit, configured to record the current load current value of the power adapter when the load adjustment voltage detection unit detects that the difference between the first voltage value and the second voltage value is not greater than a preset voltage threshold .

It can be seen from the above that in the implementation of the present invention, by obtaining the first voltage value when the power adapter is not loaded and the second voltage value when the power adapter is loaded, when it is detected that the difference between the first voltage value and the second voltage value is not greater than the predetermined value. When setting the voltage threshold, the load current value of the power adapter is recorded. With the solution of the present invention, only a reasonable voltage threshold needs to be preset, the maximum load current value of the power adapter can be recorded, and the user can record the maximum load current of the power adapter through the recorded The value can determine whether the power adapter is suitable for the terminal, thus providing help for the user to purchase the power adapter and protecting the consumer rights and interests of the user.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic flowchart of an embodiment of a power adapter detection method provided by the present invention;

FIG. 2 is a schematic structural diagram of an embodiment of a power adapter detection device provided by the present invention.

Detailed ways

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described above are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

An embodiment of the present invention provides a power adapter detection method, including: acquiring a first voltage value of a power adapter, wherein the first voltage value is a voltage value of the power adapter when the power adapter is not loaded; gradually increasing the voltage value of the power adapter load resistance value, and detect the difference between the first voltage value and the second voltage value in real time, wherein the second voltage value is the real-time detection of the load resistance value of the power adapter in the process of increasing The voltage value of the power adapter; when it is detected that the difference between the first voltage value and the second voltage value is not greater than a preset voltage threshold, record the current load current value of the power adapter. The embodiment of the present invention also provides a corresponding power adapter detection device, which will be described in detail below.

A method for detecting a power adapter provided by an embodiment of the present invention is described below. Referring to FIG. 1, the method for detecting a power adapter in the embodiment of the present invention includes:

101. Obtain a first voltage value of the power adapter;

Wherein, the first voltage value is a voltage value when the power adapter is not loaded.

Optionally, after connecting the power adapter to the terminal and starting the power adapter detection device, the power adapter detection device interrupts the charging operation of the power adapter to the terminal, that is, the control terminal is temporarily not charged, and then the power adapter detection device detects and obtains the power adapter. For the current voltage value, since the charging operation of the power adapter to the terminal has been suspended at this time, the power adapter is in the no-load state, and the voltage value detected by the power adapter is the voltage value when the power adapter is no-load.

Of course, in the embodiment of the present invention, the power adapter detection device can also obtain the voltage value of the power adapter when it is no-load in other ways. For example, by manually detecting the voltage value of the power adapter when the power adapter is no-load, The voltage value when the power adapter is not loaded is input to the power adapter detection device, so that the power adapter detection device obtains the voltage value when the power adapter is not loaded. In the embodiment of the present invention, the specific implementation manner of the power adapter detection device acquiring the voltage value of the power adapter when the power adapter is not loaded is not limited.

102. Gradually increase the load resistance value of the power adapter, and detect the difference between the first voltage value and the second voltage value in real time;

Wherein, the second voltage value is the voltage value of the power adapter detected in real time during the process of increasing the load resistance value of the power adapter.

In the embodiment of the present invention, the load resistance value of the power adapter can be realized by the resistance value of the built-in sliding rheostat. In step 102, the power adapter detection device loads a load resistance value for the power adapter, and detects the second voltage value (For the convenience of description, the second voltage value of the power adapter is described as U ₂ below), and compare U ₂ with the first voltage value obtained in step 102 (for convenience of description, the second voltage value of the power adapter obtained in step 102 will be described below. A voltage value is described as U ₁ ), when the difference between U ₁ and U ₂ (for convenience of description, the difference between U ₁ and U ₂ is described as ΔU below) is greater than the preset voltage threshold, by adjusting the resistance of the sliding varistor The value of the load resistance _of the power adapter is gradually increased, and U2 is detected in real time, and the difference between U2 and U1 is compared at the same time, and step 103 is performed until _ΔU is not greater _than the preset voltage threshold.

Optionally, the power adapter detection device first loads the above-mentioned power adapter with a load resistance value of 5 ohms, and then obtains U ₂ and calculates ΔU. If ΔU is greater than the preset voltage threshold, start from 5 ohms and take 2.5 ohms as steps. Gradually increase the load resistance value of the power adapter, and obtain U ₂ and calculate ΔU after each increase of the load resistance value of the power adapter, and perform step 103 until ΔU is not greater than the preset voltage threshold. Of course, in the embodiment of the present invention, the load resistance value loaded by the power adapter detection device for the power adapter for the first time is not limited to 5 ohms, and the load resistance value added to the power adapter each time is not limited to 2.5 ohms.

103. When it is detected that the difference between the first voltage value and the second voltage value is not greater than a preset voltage threshold, record the current load current value of the power adapter;

In the embodiment of the present invention, when it is detected that the difference between the first voltage value and the second voltage value is not greater than a preset voltage threshold, the power adapter detection device records the current load current value of the power adapter, and at this time records The load current value of the above-mentioned power adapter is the maximum load current value of the above-mentioned power adapter. The user can know the maximum load current value of the above-mentioned power adapter by checking the load current value recorded by the power adapter detection device.

Further, in order to facilitate the user to view the results recorded by the power adapter detection device, optionally, after step 103, the power adapter detection device displays that the recorded difference between the first voltage value and the second voltage value of the power adapter is not the same. The load current value when it is greater than the preset voltage threshold.

Optionally, after step 103, the power adapter detection device compares the load current value of the power adapter recorded in step 103 with the current value required by the battery of the terminal connected to the power adapter; If the load current value of the adapter is less than the current value required by the battery of the terminal, a reminder signal is output. Specifically, the above-mentioned reminder signal may be one or a combination of two or more of a voice signal, a vibration signal, and a text signal.

Optionally, the aforementioned voltage threshold is set to any value in the range of 0.1 volts to 0.5 volts (including 0.1 volts and 0.3 volts). Specifically, the aforementioned voltage thresholds are set to 0.2 volts. Of course, the above-mentioned voltage threshold can also be set according to actual requirements, so that when the difference between the above-mentioned first voltage value and the above-mentioned second voltage value is detected to be no greater than the preset voltage threshold, the recorded load of the above-mentioned power adapter The current value is the maximum load current value of the above-mentioned power adapter.

It should be noted that the power adapter detection device in the embodiment of the present invention is integrated in a mobile phone, a tablet computer, a router, or other terminals that need to be charged by a power adapter, which is not limited here.

Because the performance of the power adapter is mainly reflected in the load, the larger the load, the smaller the internal resistance, the better the performance of the power adapter. Therefore, in the embodiment of the present invention, the first voltage value of the power adapter when the power adapter is no-load and the load of the power adapter are obtained by obtaining the first voltage value of the power adapter. When it is detected that the difference between the first voltage value and the second voltage value is not greater than the preset voltage threshold value, the load current value of the power adapter is recorded. Through the solution of the present invention, only a reasonable preset voltage is required Threshold value, the maximum load current value of the power adapter can be recorded, and the user can determine whether the power adapter is suitable for the terminal through the recorded maximum load current value of the power adapter, thus providing help for the user to purchase a power adapter and ensuring the user's safety. Consumer Rights.

Hereinafter, another embodiment is used to describe the power adapter detection apparatus in the embodiment of the present invention. Please refer to FIG. 2 . The power adapter detection apparatus 200 in the embodiment of the present invention includes:

an obtaining unit 201, configured to obtain a first voltage value of a power adapter, wherein the first voltage value is a voltage value when the power adapter is not loaded;

The load adjustment voltage detection unit 202 is used to gradually increase the load resistance value of the power adapter, and to detect the difference between the first voltage value and the second voltage value in real time, wherein the second voltage value increases when the value of the load is increased. The voltage value of the power adapter obtained by real-time detection in the process of the load resistance value of the power adapter;

The recording unit 203 is configured to record the current load current value of the power adapter when the load adjustment voltage detection unit 202 detects that the difference between the first voltage value and the second voltage value is not greater than a preset voltage threshold .

Optionally, the power adapter detection apparatus in the embodiment of the present invention further includes: a display unit configured to display the current load current value of the power adapter.

Optionally, the load adjustment voltage detection unit 202 is specifically configured to: load the power adapter with a load resistance value of 5 ohms, start from 5 ohms, and gradually increase the load resistance value of the power adapter in steps of 2.5 ohms.

Optionally, the power adapter detection device in the embodiment of the present invention further includes: a comparison unit, used for comparing the current load current value of the power adapter with the current value required by the battery of the terminal; an output unit, used for when When the comparison unit compares that the current load current value of the power adapter is smaller than the current value required by the battery of the terminal, it outputs a reminder signal.

Optionally, the acquisition unit 201 includes: an interruption detection unit for interrupting the charging operation of the power adapter to the terminal, wherein the terminal is a terminal connected to the power adapter; a detection and acquisition unit for detection of the power adapter The current voltage value is taken as the first voltage value.

It should be noted that the power adapter detection device in the embodiment of the present invention is integrated in a mobile phone, a tablet computer, a router, or other terminals that need to be charged by a power adapter, which is not limited here.

It should be understood that the power adapter detection device in the embodiment of the present invention can be the power adapter detection device mentioned in the above method embodiments, and can be used to implement all the technical solutions in the above method embodiments, and the functions of each functional module can be based on The methods in the foregoing method embodiments are specifically implemented, and for the specific implementation process, reference may be made to the relevant descriptions in the foregoing embodiments, which will not be repeated here.

Because the performance of the power adapter is mainly reflected in the load, the larger the load, the smaller the internal resistance, the better the performance of the power adapter. Therefore, in the embodiment of the present invention, the first voltage value of the power adapter when the power adapter is no-load and the load of the power adapter are obtained by obtaining the first voltage value of the power adapter. When it is detected that the difference between the first voltage value and the second voltage value is not greater than the preset voltage threshold value, the load current value of the power adapter is recorded. Through the solution of the present invention, only a reasonable preset voltage is required Threshold value, the maximum load current value of the power adapter can be recorded, and the user can determine whether the power adapter is suitable for the terminal through the recorded maximum load current value of the power adapter, thus providing help for the user to purchase a power adapter and ensuring the user's safety. Consumer Rights.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the above units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be Integration into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated unit, if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, removable hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes.

It should be noted that, for the convenience of description, the foregoing method embodiments are all expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence, As in accordance with the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily all necessary to the present invention.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

The above is a description of a power adapter detection method and a power adapter detection device provided by the present invention. For those skilled in the art, according to the idea of the embodiment of the present invention, there will be changes in the specific implementation and application scope. In conclusion, the contents of this specification should not be construed as limiting the present invention.

Claims (6)

1. A method for detecting a power adapter, comprising:

connecting the power adapter into the mobile terminal and starting a power adapter detection device, wherein the power adapter detection device is integrated in the mobile terminal;

acquiring the maximum load current value of the power adapter;

comparing the maximum load current value with a current value required by a battery of the mobile terminal;

if the maximum load current value is smaller than the current value required by the battery of the mobile terminal, outputting a reminding signal;

wherein the obtaining of the maximum load current value of the power adapter comprises:

acquiring a first voltage value of the power adapter, wherein the first voltage value is a voltage value of the power adapter during no-load;

gradually increasing the load resistance value of the power adapter, and detecting a difference value between the first voltage value and a second voltage value in real time, wherein the second voltage value is the voltage value of the power adapter obtained by real-time detection in the process of increasing the load resistance value of the power adapter;

when the difference value between the first voltage value and the second voltage value is not larger than a preset voltage threshold value, recording the current load current value of the power adapter, wherein the current load current value is the maximum load current value of the power adapter.

2. The method of claim 1, further comprising, prior to said obtaining a maximum load current value for said power adapter:

the power adapter detection device interrupts the charging operation of the power adapter on the mobile terminal;

the step-by-step increase of the load resistance value of the power adapter specifically includes:

and loading a load resistance value of 5 ohms to the power adapter through the slide rheostat, and gradually increasing the load resistance value of the power adapter by taking 2.5 ohms as step length from 5 ohms.

3. The method of claim 2, further comprising:

and displaying the maximum load current value of the power adapter.

4. A power adapter detection apparatus, integrated in a mobile terminal, comprising:

the acquisition unit is used for acquiring a first voltage value of the power adapter, wherein the first voltage value is a voltage value of the power adapter during no-load;

the load adjustment voltage detection unit is used for gradually increasing the load resistance value of the power adapter and detecting the difference value between the first voltage value and a second voltage value in real time, wherein the second voltage value is the voltage value of the power adapter obtained by real-time detection in the process of increasing the load resistance value of the power adapter;

the recording unit is used for recording the current load current value of the power adapter when the load adjustment voltage detection unit detects that the difference value between the first voltage value and the second voltage value is not greater than a preset voltage threshold value, wherein the current load current value is the maximum load current value of the power adapter;

the comparison unit is used for comparing the maximum load current value of the power adapter with a current value required by a battery of the mobile terminal;

and the output unit is used for outputting a reminding signal when the maximum load current value is smaller than the current value required by the battery of the mobile terminal through comparison by the comparison unit.

5. The power adapter detection device of claim 4, comprising

And the display unit is used for displaying the maximum load current value of the power adapter connected to the mobile terminal.

6. The power adapter detection device according to claim 4, wherein the step-by-step increase of the load resistance value of the power adapter is specifically:

and loading a load resistance value of 5 ohms for the power adapter, and gradually increasing the load resistance value of the power adapter by taking 2.5 ohms as a step from 5 ohms.

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