CN104865477B - A power adapter detection method and a 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 comprises the following steps: acquiring a first voltage value of a 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; and when detecting that the difference value between the first voltage value and the second voltage value is not greater than a preset voltage threshold value, recording the current load current value of the power adapter. The technical scheme provided by the invention can help the user to choose a proper power adapter, and the rights of consumers of the user are guaranteed.

Description

A power adapter detection method and a power adapter detection device

technical field

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

Background technique

The popularization of smart phones and the open development of the Android (that is, android) system have led to the rapid development of mobile phones. Not only are there endless counterfeit phones, but also counterfeit accessories are everywhere. Usually, if you want to buy better accessories, you often spend money and fail to buy them. The product is a pain in the ass.

In actual work, the output current of the power adapter is determined according to the load (that is, the mobile phone) connected to the adapter. As long as it is within its capacity, the power adapter will provide as much current as the mobile phone needs. If the mobile phone needs If the current exceeds the upper current limit that the power adapter can provide, the power adapter will always output the maximum current. The original power adapter is equipped with a transformer, which can automatically adjust even when the voltage is unstable, which is safer than the original charger, especially the cheap counterfeit 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 risk of explosion.

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

Contents of the invention

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

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

Obtaining a first voltage value of the power adapter, wherein the first voltage value is a voltage value when the power adapter is no-load;

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 detected in real time;

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

An acquisition 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 no-load;

The load adjustment voltage detection unit is used 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 increases when the The voltage value of the power adapter obtained by real-time detection during 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 no-load 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 preset When setting the voltage threshold, record the load current value of the power adapter. Through the solution of the present invention, only a reasonable voltage threshold needs to be preset to record the maximum load current value of the power adapter. The user can record the maximum load current value of the power adapter through the recorded Value can determine whether the power adapter is suitable for the terminal, thus providing help for users to purchase power adapters and protecting the consumer rights of users.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the 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. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic flow chart 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 in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

An embodiment of the present invention provides a method for detecting a power adapter, including: acquiring a first voltage value of the power adapter, wherein the first voltage value is the voltage value of the power adapter when the power adapter is no-load; 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 detected value obtained during the process of increasing the load resistance value of the power adapter 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 power adapter detection method provided by the embodiment of the present invention is described below, please refer to FIG. 1 , the power adapter detection method in the embodiment of the present invention includes:

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

Wherein, the first voltage value is a voltage value when the power adapter is no-loaded.

Optionally, after the power adapter is connected to the terminal and the power adapter detection device is started, the power adapter detection device interrupts the charging operation of the power adapter to the terminal, that is, the 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 a 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 it is no-load, the manually detected power adapter is no-load When the voltage value is input to the above-mentioned power adapter detection device, so that the above-mentioned power adapter detection device obtains the voltage value of the power adapter when it is no-load. The embodiment of the present invention does not limit the specific implementation manner in which the power adapter detection device obtains the voltage value of the power adapter when it is no-load.

102. Gradually increase the load resistance value of the above-mentioned power adapter, and detect the difference between the above-mentioned 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 above-mentioned 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 above-mentioned power adapter, and detects the second voltage value (For ease of description, the second voltage value of the power adapter is described as U ₂ below), while comparing U ₂ with the first voltage value obtained in step 102 (for ease of description, the second voltage value of the power adapter obtained in step 102 is referred to below as A voltage value is described as U ₁ ), when the difference between U ₁ and U ₂ (for ease 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 rheostat gradually increase the load resistance value of the above-mentioned power adapter, and detect U ₂ in real time, and compare the difference between U ₂ and U ₁ at the same time, until ΔU is not greater than the preset voltage threshold, go to step 103.

Optionally, the power adapter detection device first loads the above-mentioned power adapter with a load resistance value of ₅ ohms, then obtains U2 and calculates ΔU, if ΔU is greater than the preset voltage threshold, start from 5 ohms, and take 2.5 ohms as the step size Gradually increase the load resistance value of the above _- mentioned power adapter, and obtain U2 and calculate ΔU after each increase of the load resistance value of the above-mentioned power adapter, until ΔU is not greater than the preset voltage threshold, perform step 103. Certainly, in the embodiment of the present invention, the load resistance value that the power adapter detection device loads on 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 above-mentioned first voltage value and the above-mentioned second voltage value is not greater than the preset voltage threshold, the power adapter detection device records the current load current value of the above-mentioned 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, and 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 users to view the results recorded by the power adapter detection device, optionally, after step 103, the power adapter detection device displays that the difference between the first voltage value and the second voltage value of the power adapter recorded is not 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 above-mentioned 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 above 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 above voltage threshold is set to 0.2 volts. Of course, the above-mentioned voltage threshold can also be set according to actual needs, so that when it is detected that the difference between the above-mentioned first voltage value and the above-mentioned second voltage value is not 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 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 through a power adapter, which is not limited here.

Since the performance of the power adapter is mainly reflected in the load, the greater the load, the smaller the internal resistance, the better the performance 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, the load current value of the power adapter is recorded. Through the solution of the present invention, only a reasonable voltage needs to be preset Threshold, 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 safety of the user. Consumer Rights.

The power adapter detection device in the embodiment of the present invention is described below with another embodiment, please refer to FIG. 2 , the power adapter detection device 200 in the embodiment of the present invention includes:

An acquisition unit 201, configured to acquire a first voltage value of the power adapter, wherein the first voltage value is a voltage value of the power adapter when the power adapter is no-load;

The load adjustment voltage detection unit 202 is 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 increases The voltage value of the power adapter obtained by real-time detection during the process of the load resistance value of the power adapter;

A recording unit 203, 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 device for detecting a power adapter in the embodiment of the present invention further includes: a display unit, configured to display a 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, and gradually increase the load resistance value of the power adapter with a step size of 2.5 ohms starting from 5 ohms.

Optionally, the device for detecting the power adapter in the embodiment of the present invention further includes: a comparison unit, configured to compare the current load current value of the power adapter with the current value required by the battery of the terminal; an output unit, configured to When the comparison unit compares that the current load current value of the power adapter is lower 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, configured to interrupt the charging operation of the terminal by the power adapter, wherein the terminal is a terminal connected to the power adapter; a detection and acquisition unit, configured to detect the charging operation of the power adapter The current voltage value is used 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 through 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 like the power adapter detection device mentioned in the above method embodiment, and can be used to realize all the technical solutions in the above method embodiment, and the functions of each functional module can be based on The methods in the above method embodiments are specifically implemented, and the specific implementation process may refer to relevant descriptions in the above embodiments, and details are not repeated here.

Since the performance of the power adapter is mainly reflected in the load, the greater the load, the smaller the internal resistance, the better the performance 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, the load current value of the power adapter is recorded. Through the solution of the present invention, only a reasonable voltage needs to be preset Threshold, 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 safety of the user. Consumer Rights.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device 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 can be combined or can be Integrate into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

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

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

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention 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 to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile 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 sake of simplicity of description, the aforementioned method embodiments are 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. Because of 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 belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to 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 of ordinary skill 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 summary, the contents of this specification should not be construed as limiting the present invention.

Claims (8)

1. A kind of 1. power supply adaptor detection method for mobile terminal, it is characterised in that including：

   The power supply adaptor is accessed into the mobile terminal and startup power supply adapter detection means, the power supply adaptor inspection Survey device and interrupt charging operations of the power supply adaptor to the mobile terminal, the power supply adaptor detection means is integrated in In the mobile terminal；

   The first voltage value of the power supply adaptor is obtained, wherein, when the first voltage value is the power supply adaptor zero load Magnitude of voltage；

   The load resistor value of the power supply adaptor is stepped up, and detects the first voltage value and second voltage value in real time Difference, wherein, the second voltage value is to be detected in real time during the load resistor value of the power supply adaptor is increased The magnitude of voltage of the power supply adaptor arrived；

   When the difference for detecting the first voltage value and the second voltage value is not more than default voltage threshold, institute is recorded State the current load current value of power supply adaptor；

   Compare current value of the current load current value of the power supply adaptor required for the battery of the mobile terminal；

   If the current load current value of the power supply adaptor is compared less than the electric current required for the battery of the mobile terminal Value, then export alerting signal.
2. 2. according to the method for claim 1, it is characterised in that described to record the current load current of the power supply adaptor Value, includes afterwards：

   Show the current load current value of the power supply adaptor.
3. 3. method according to claim 1 or 2, it is characterised in that the load for being stepped up the power supply adaptor Resistance value, it is specially：

   5 ohm of load resistor value is loaded for the power supply adaptor, since 5 ohm, is stepped up with 2.5 ohm for step-length The load resistor value of the power supply adaptor.
4. 4. method according to claim 1 or 2, it is characterised in that the acquisition first voltage value, including：

   Charging operations of the power supply adaptor to mobile terminal are interrupted, wherein, the mobile terminal accesses for the power supply adaptor Mobile terminal；

   Detect the current magnitude of voltage of the power supply adaptor and using the magnitude of voltage as the first voltage value.
5. 5. a kind of power supply adaptor detection means for mobile terminal, the power supply adaptor detection means is integrated in the shifting In dynamic terminal, it is characterised in that including：

   Acquiring unit, for the power supply adaptor to be accessed into the mobile terminal and startup power supply adapter detection means, institute State power supply adaptor detection means and interrupt charging operations of the power supply adaptor to the mobile terminal, obtain power supply adaptor First voltage value, wherein, the magnitude of voltage when first voltage value is the power supply adaptor zero load；

   Adjustment of load voltage detection unit, for being stepped up the load resistor value of the power supply adaptor, and institute is detected in real time The difference of first voltage value and second voltage value is stated, wherein, the second voltage value is to increase the negative of the power supply adaptor The magnitude of voltage of the obtained power supply adaptor is detected during carrying resistance value in real time；

   Recording unit, for detecting the first voltage value and the second voltage when the adjustment of load voltage detection unit When the difference of value is not more than default voltage threshold, the current load current value of the power supply adaptor is recorded；

   Required for the battery of comparing unit, the load current value current for the power supply adaptor and the mobile terminal Current value；

   Output unit, for being less than the shifting when the comparing unit compares the current load current value of the power supply adaptor During current value required for the battery of dynamic terminal, alerting signal is exported.
6. 6. power supply adaptor detection means according to claim 5, it is characterised in that the power supply adaptor detection means Also include：

   Display unit, the load current value current for showing the power supply adaptor.
7. 7. the power supply adaptor detection means according to claim 5 or 6, it is characterised in that the adjustment of load voltage inspection Unit is surveyed to be specifically used for：5 ohm of load resistor value is loaded for the power supply adaptor, since 5 ohm, is with 2.5 ohm Step-length is stepped up the load resistor value of the power supply adaptor.
8. 8. power supply adaptor detection means according to claim 5, it is characterised in that the acquiring unit includes：

   Detection unit is interrupted, for interrupting charging operations of the power supply adaptor to mobile terminal, wherein, the mobile terminal is institute State the mobile terminal of power supply adaptor access；

   Measurement acquisition unit, for detecting the current magnitude of voltage of the power supply adaptor and using the magnitude of voltage as the described first electricity Pressure value.