CN104777385B - Tool and method for detecting mobile terminal reverse power connection and data reversal connection protection function - Google Patents
Tool and method for detecting mobile terminal reverse power connection and data reversal connection protection function Download PDFInfo
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- CN104777385B CN104777385B CN201510191269.7A CN201510191269A CN104777385B CN 104777385 B CN104777385 B CN 104777385B CN 201510191269 A CN201510191269 A CN 201510191269A CN 104777385 B CN104777385 B CN 104777385B
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Abstract
The invention belongs to method of testing and test fixture technical field; more particularly to a kind of tool for detecting mobile terminal reverse power connection and data reversal connection protection function; including tool main body and the USB interface, USB line, switch, cathode power supply line, anode power cord and the programmable power supply that are arranged in tool main body; connected by cathode power supply line and anode power cord between measurement jig main body and programmable power supply; USB line is connected with USB interface; switch can beat the positive voltage data wire of the power positive line or USB line to USB line, and programmable power supply is connected with the ground wire of USB line.Relative to prior art, the present invention can detect whether mobile terminal has the reverse power connection and data reversal connection protection function of USB, be failed with the USB or main board function that prevent mobile terminal.And, simple structure of the present invention is easily realized, low manufacture cost.
Description
Technical field
It is more particularly to a kind of for detecting mobile terminal power supply the invention belongs to method of testing and test fixture technical field
Reversal connection and the tool and method of data reversal connection protection function.
Background technology
Learnt through feeding back after sale, user in routine use mobile terminal, it sometimes appear that USB interface can not charge, electricity
Brain can not recognize the problem of USB, recognize by analysis：The appearance of these problems is probably because user makes in daily life
When using mobile terminal, USB interface occurs in that the situation of reverse power connection and/or data reversal connection, so pushing mobile terminal to city
, it is necessary to reverse power connection and data reversal connection protection function to mobile terminal are detected before, to prevent the USB of mobile terminal
Interface can not charge or computer can not recognize USB problem appearance, so as to prevent the usb function or mainboard of mobile terminal
Disabler.
There are four lines in the USB line of mobile terminal：Power positive line (VCC), negative voltage data line (Data-), positive voltage
Data wire (Data+) and ground wire (GND).
In view of this, it is a kind of for detecting mobile terminal reverse power connection and data reversal connection protection function it is necessory to provide
Tool and method, can detect whether mobile terminal has the reverse power connection and data reverse connecting protection of USB using the tool and method
Function, is failed with the USB or main board function that prevent mobile terminal.
The content of the invention
An object of the present invention is：In view of the shortcomings of the prior art, provide a kind of for detecting mobile terminal electricity
Source reversal connection and the tool of data reversal connection protection function, can detect whether mobile terminal has the electricity of USB using the tool and method
Source reversal connection and data reversal connection protection function, are failed with the USB or main board function that prevent mobile terminal.
To achieve these goals, the present invention is adopted the following technical scheme that：
Tool for detecting mobile terminal reverse power connection and data reversal connection protection function, including tool main body and be arranged at
USB interface, USB line, switch, cathode power supply line, anode power cord and programmable power supply in the tool main body, the test are controlled
By the cathode power supply line and anode power cord connection, the USB line and institute between tool main body and the programmable power supply
USB interface connection is stated, the switch can beat the power positive line (power supply shelves) or the positive voltage of the USB line to the USB line
Data wire (data shelves), and the programmable power supply is connected with the ground wire of the USB line.
Improved for detecting a kind of of tool of mobile terminal reverse power connection and data reversal connection protection function as the present invention,
Display screen is provided with the tool main body, the positive pole of the display screen is by the power supply switched with the USB line
Electrode line or the positive voltage data wire are connected, and the negative pole of the display screen is connected with the ground wire of the USB line.
Improved for detecting a kind of of tool of mobile terminal reverse power connection and data reversal connection protection function as the present invention,
The tool main body to be shaped as cuboid-type, cylinder, taper type, hexagon or eight prismatic.
Improved for detecting a kind of of tool of mobile terminal reverse power connection and data reversal connection protection function as the present invention,
The switch is arranged on the upper surface of the tool main body.
Improved for detecting a kind of of tool of mobile terminal reverse power connection and data reversal connection protection function as the present invention,
The display screen and the USB interface are arranged on the preceding surface of the tool main body.
Improved for detecting a kind of of tool of mobile terminal reverse power connection and data reversal connection protection function as the present invention,
The power positive line and the power cathode line are arranged on the left surface of the tool main body or right flank.
Relative to prior art, the present invention by set tool main body, USB interface, USB line, switch, cathode power supply line,
Anode power cord and programmable power supply, wherein, the effect of switch is regulation power supply shelves and data shelves, cathode power supply line and negative electricity
The effect of source line is to couple together tool main body and programmable power supply, and the effect of USB interface is whole with mobile by USB line
End connection, when switch is beaten into the power positive line to USB line, can carry out the test of reverse power connection, and be beaten to USB when by switch
During the positive voltage data wire of line, then the test of data reversal connection can be carried out, so that, mobile terminal can be detected by components above
Whether there are the reverse power connection and data reversal connection protection function of USB, failed with the USB or main board function that prevent mobile terminal.And,
Simple structure of the present invention, easily realizes, low manufacture cost.
It is another object of the present invention to provide one kind using tool of the invention detection mobile terminal reverse power connection and
The method of data reversal connection protection function, at least comprises the following steps：
Whether A, the USB identification functions of inspection mobile terminal and charge function are normal, if normally, following the steps below；
B, one end that mobile terminal is connected USB line by its USB port, the other end of USB line connect the USB of the tool
Interface；
C, reverse power connection test：Tool main body is connected by anode power cord with the positive pole of programmable power supply, by positive pole
Power line is connected with the negative pole of programmable power supply, sets the voltage of programmable power supply, then will switch the power positive line beaten to USB line
Side, opens mobile terminal, persistently after charging 10min-200min, mobile terminal is separated with USB line, checks again for mobile whole
Whether the USB identification functions and charge function at end are normal；
D, data reversal connection test：Tool main body is connected by cathode power supply line with the positive pole of programmable power supply, by negative pole
Power line is connected with the negative pole of programmable power supply, sets the voltage of programmable power supply, then will switch the positive voltage data beaten to USB line
Line side, opens mobile terminal, after continuing 10min-200min, mobile terminal is separated with USB line, checks again for mobile terminal
USB identification functions and charge function it is whether normal.
Improved as a kind of of method of present invention detection mobile terminal reverse power connection and data reversal connection protection function, C steps
In rapid, the voltage of programmable power supply is 8V-15V.
Improved as a kind of of method of present invention detection mobile terminal reverse power connection and data reversal connection protection function, C steps
In rapid, charging current is less than 10mA, to prevent from causing unnecessary harm to mobile terminal.
Improved as a kind of of method of present invention detection mobile terminal reverse power connection and data reversal connection protection function, D steps
In rapid, the voltage of programmable power supply is 3V-8V.
Relative to prior art, the inventive method is simple, it is easy to accomplish, and effectively whether can detect mobile terminal
There are the reverse power connection and data reversal connection protection function of USB, failed with the USB or main board function that prevent mobile terminal.The method can
To enrich the detection method of mobile terminal, for the quality guarantee of mobile terminal provides sound assurance.
Wherein, step C and D steps in no particular order, can first test the reverse power connection protection work(of the USB interface of mobile terminal
Can, it is also possible to first test the data reversal connection protection function of the USB interface of mobile terminal.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the internal wiring figure of the embodiment of the present invention 1.
Wherein, 1- tools main body, 2-USB interfaces, 3-USB lines, 31- power positive lines, 32- positive voltage data wires, 33- connects
Ground wire, 34- negative voltage data lines, 4- switches, 5- cathode power supply lines, 6- anode power cords, 7- programmable power supplys, 8- display screens.
Specific embodiment
The present invention and its advantage are described in further detail with reference to embodiment, but embodiment party of the invention
Formula is not limited to this.
Embodiment 1
As illustrated in fig. 1 and 2, one kind that the present embodiment is provided is used to detect mobile terminal reverse power connection and data reverse connecting protection
The tool of function, including tool main body 1 and the USB interface 2, USB line 3, switch 4, cathode power supply line being arranged in tool main body 1
5th, anode power cord 6 and programmable power supply 7, pass through cathode power supply line 5 and negative electricity between measurement jig main body 1 and programmable power supply 7
Source line 6 is connected, and USB line 3 is connected with USB interface 2, and switch 4 can beat the power positive line 31 (power supply shelves) or USB line to USB line 3
3 positive voltage data wire 32 (data shelves), and programmable power supply 7 is connected with the ground wire 33 of USB line 3.Additionally, USB line 3 is also wrapped
Include negative voltage data line 34.When 4 dozens of power positive lines 31 to USB line 3 are switched, programmable power supply 7 passes through power positive line 31
It is connected with USB line 3 with ground wire 33, such that it is able to carry out reverse power connection test；When 4 dozens of positive voltage data to USB line 3 of switch
During line 32, programmable power supply 7 is connected by positive voltage data wire 32 and ground wire 33 with USB line 3, such that it is able to carry out data reversal connection
Test.
Wherein, display screen 8 is provided with tool main body 1, the positive pole of display screen 8 is by switch and the positive source of USB line
Line 31 or positive voltage data wire 32 are connected, and the negative pole of display screen 8 is connected with the ground wire 33 of USB line 3.Display screen 8 is acted on
In showing current test voltage, such that it is able to intuitively show power supply whether reversal connection, data whether reversal connection.
Tool main body 1 to be shaped as cuboid-type, cylinder, taper type, hexagon or eight prismatic.Switch 3 is set
In on the upper surface of tool main body 1, switch 3 is set to that formula or push button can be dialled.Display screen 8 and USB interface 2 are arranged at tool master
On the preceding surface of body 1, the display data on display screen 8 is read in grafting and observation in order to USB line 3.Power positive line 5 and electricity
Source negative line 6 is arranged on the left surface of tool main body 1 or right flank.
Embodiment 2
Present embodiments provide tool detection mobile terminal reverse power connection and the data reverse connecting protection of a kind of utilization embodiment 1
The method of function, comprises the following steps：
The first step, checks whether the USB identification functions and charge function of mobile terminal are normal, if normally, carrying out following
Step；
Second step, mobile terminal is connected one end of USB line 3 by its USB port, the other end connection fixture of USB line 3
USB interface 2；
3rd step, reverse power connection test：Tool main body 1 is connected by anode power cord 6 with the positive pole of programmable power supply 7,
It is connected with the negative pole of programmable power supply 7 by cathode power supply line 5, the voltage for setting programmable power supply 7 is+12V, now, on display screen 8
- 12V is shown as, 4 dozens of sides of power positive line 31 (power supply shelves) to USB line 3 then will be switched, mobile terminal is opened, continued
After charging 30min (charging current is less than 10mA), mobile terminal is set to be separated with USB line 3, the USB for checking again for mobile terminal knows
Whether other function and charge function are normal；
4th step, data reversal connection test：Tool main body 1 is connected by cathode power supply line 5 with the positive pole of programmable power supply 7,
It is connected with the negative pole of programmable power supply 7 by anode power cord 6, the voltage for setting programmable power supply 7 is+5V, now, display screen 8 shows
+ 5V is shown as, then 4 dozens of sides of positive voltage data wire 32 to USB line 3 will be switched, mobile terminal is opened, after continuing 30min, made
Mobile terminal is separated with USB line 3, and whether the USB identification functions and charge function for checking again for mobile terminal are normal.
Embodiment 3
Present embodiments provide tool detection mobile terminal reverse power connection and the data reverse connecting protection of a kind of utilization embodiment 1
The method of function, comprises the following steps：
The first step, checks whether the USB identification functions and charge function of mobile terminal are normal, if normally, carrying out following
Step；
Second step, mobile terminal is connected one end of USB line 3 by its USB port, the other end connection fixture of USB line 3
USB interface 2；
3rd step, data reversal connection test：Tool main body 1 is connected by cathode power supply line 5 with the positive pole of programmable power supply 7,
It is connected with the negative pole of programmable power supply 7 by anode power cord 6, the voltage for setting programmable power supply 7 is+6V, now, display screen 8 shows
+ 6V is shown as, then 4 dozens of sides of positive voltage data wire 32 to USB line 3 will be switched, mobile terminal is opened, after continuing 60min, made
Mobile terminal is separated with USB line 3, and whether the USB identification functions and charge function for checking again for mobile terminal are normal.
4th step, reverse power connection test：Tool main body 1 is connected by anode power cord 6 with the positive pole of programmable power supply 7,
It is connected with the negative pole of programmable power supply 7 by cathode power supply line 5, the voltage for setting programmable power supply 7 is+10V, now, on display screen 8
- 10V is shown as, 4 dozens of sides of power positive line 31 (power supply shelves) to USB line 3 then will be switched, mobile terminal is opened, continued
After charging 60min (charging current is less than 10mA), mobile terminal is set to be separated with USB line 3, the USB for checking again for mobile terminal knows
Whether other function and charge function are normal.
Embodiment 4
Present embodiments provide tool detection mobile terminal reverse power connection and the data reverse connecting protection of a kind of utilization embodiment 1
The method of function, comprises the following steps：
The first step, checks whether the USB identification functions and charge function of mobile terminal are normal, if normally, carrying out following
Step；
Second step, mobile terminal is connected one end of USB line 3 by its USB port, the other end connection fixture of USB line 3
USB interface 2；
3rd step, reverse power connection test：Tool main body 1 is connected by anode power cord 6 with the positive pole of programmable power supply 7,
It is connected with the negative pole of programmable power supply 7 by cathode power supply line 5, the voltage for setting programmable power supply 7 is+14V, now, on display screen 8
- 14V is shown as, 4 dozens of sides of power positive line 31 (power supply shelves) to USB line 3 then will be switched, mobile terminal is opened, continued
After charging 100min (charging current is less than 10mA), mobile terminal is set to be separated with USB line 3, the USB for checking again for mobile terminal knows
Whether other function and charge function are normal；
4th step, data reversal connection test：Tool main body 1 is connected by cathode power supply line 5 with the positive pole of programmable power supply 7,
It is connected with the negative pole of programmable power supply 7 by anode power cord 6, the voltage for setting programmable power supply 7 is+4V, now, display screen 8 shows
+ 4V is shown as, then 4 dozens of sides of positive voltage data wire 32 to USB line 3 will be switched, mobile terminal is opened, after continuing 100min,
Mobile terminal is set to be separated with USB line 3, whether the USB identification functions and charge function for checking again for mobile terminal are normal.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in specific embodiment disclosed and described above, to of the invention
Some modifications and changes should also be as falling into scope of the claims of the invention.Although additionally, being used in this specification
Some specific terms, but these terms are merely for convenience of description, do not constitute any limitation to the present invention.
Claims (10)
1. it is used to detect the tool of mobile terminal reverse power connection and data reversal connection protection function, it is characterised in that：Including tool master
Body and the USB interface, USB line, switch, cathode power supply line, anode power cord and the programmable power supply that are arranged in the tool main body,
Connected by the cathode power supply line and the anode power cord between the measurement jig main body and the programmable power supply, it is described
USB line is connected with the USB interface, and the switch can beat the positive voltage of the power positive line or the USB line to the USB line
Data wire, and the programmable power supply is connected with the ground wire of the USB line.
2. the tool for detecting mobile terminal reverse power connection and data reversal connection protection function according to claim 1, its
It is characterised by：Display screen is provided with the tool main body, the positive pole of the display screen is by the switch and the USB line
The power positive line or the positive voltage data wire are connected, the ground wire of the negative pole of the display screen and the USB line
Connection.
3. the tool for detecting mobile terminal reverse power connection and data reversal connection protection function according to claim 1, its
It is characterised by：The tool main body to be shaped as cuboid-type, cylinder, taper type, hexagon or eight prismatic.
4. the tool for detecting mobile terminal reverse power connection and data reversal connection protection function according to claim 1, its
It is characterised by：The switch is arranged on the upper surface of the tool main body.
5. the tool for detecting mobile terminal reverse power connection and data reversal connection protection function according to claim 2, its
It is characterised by：The display screen and the USB interface are arranged on the preceding surface of the tool main body.
6. the tool for detecting mobile terminal reverse power connection and data reversal connection protection function according to claim 1, its
It is characterised by：The power positive line and the power cathode line are arranged on the left surface of the tool main body or right flank.
7. the tool described in a kind of any one of utilization claim 1 to 6 detects mobile terminal reverse power connection and data reverse connecting protection
The method of function, it is characterised in that at least comprise the following steps：
Whether A, the USB identification functions of inspection mobile terminal and charge function are normal, if normally, following the steps below；
B, one end that mobile terminal is connected USB line by its USB port, the USB of the other end connection tool of USB line connect
Mouthful；
C, reverse power connection test：Tool main body is connected by anode power cord with the positive pole of programmable power supply, by cathode power supply
Line is connected with the negative pole of programmable power supply, sets the voltage of programmable power supply, then will switch the power positive line one beaten to USB line
Side, opens mobile terminal, persistently after charging 10min-200min, mobile terminal is separated with USB line, checks again for mobile terminal
USB identification functions and charge function it is whether normal；
D, data reversal connection test：Tool main body is connected by cathode power supply line with the positive pole of programmable power supply, by negative power supply
Line is connected with the negative pole of programmable power supply, sets the voltage of programmable power supply, then will switch the positive voltage data wire one beaten to USB line
Side, opens mobile terminal, after continuing 10min-200min, mobile terminal is separated with USB line, checks again for mobile terminal
Whether USB identification functions and charge function are normal.
8. it is according to claim 7 detection mobile terminal reverse power connection and data reversal connection protection function method, its feature
It is：In step C, the voltage of programmable power supply is 8V-15V.
9. it is according to claim 7 detection mobile terminal reverse power connection and data reversal connection protection function method, its feature
It is：In step C, charging current is less than 10mA.
10. it is according to claim 7 detection mobile terminal reverse power connection and data reversal connection protection function method, its feature
It is：In D steps, the voltage of programmable power supply is 3V-8V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510191269.7A CN104777385B (en) | 2015-04-21 | 2015-04-21 | Tool and method for detecting mobile terminal reverse power connection and data reversal connection protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510191269.7A CN104777385B (en) | 2015-04-21 | 2015-04-21 | Tool and method for detecting mobile terminal reverse power connection and data reversal connection protection function |
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| CN104777385A CN104777385A (en) | 2015-07-15 |
| CN104777385B true CN104777385B (en) | 2017-06-13 |
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Families Citing this family (1)
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| CN112965012A (en) * | 2021-02-25 | 2021-06-15 | 广州亚美智造科技有限公司 | Power supply polarity reverse connection testing device, testing system and testing method |
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| CN201242741Y (en) * | 2008-04-08 | 2009-05-20 | 石美然 | Rapid detection/regulation device for USB |
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| CN104777385A (en) | 2015-07-15 |
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