CN107192880A - The detection circuit and its detection method of mobile terminal - Google Patents
The detection circuit and its detection method of mobile terminal Download PDFInfo
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- CN107192880A CN107192880A CN201710292215.9A CN201710292215A CN107192880A CN 107192880 A CN107192880 A CN 107192880A CN 201710292215 A CN201710292215 A CN 201710292215A CN 107192880 A CN107192880 A CN 107192880A
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- 238000001514 detection method Methods 0.000 title claims abstract description 74
- 238000012360 testing method Methods 0.000 claims abstract description 41
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 210000004899 c-terminal region Anatomy 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 101150042711 adc2 gene Proteins 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
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Abstract
The present invention relates to testing field, the detection circuit and its detection method of a kind of mobile terminal are disclosed.In the present invention, the detection circuit of mobile terminal, the partial pressure value for detecting testing resistance；It is connected with the digital-to-analogue conversion ADC interface of system AP sides in mobile terminal；Comprising：Switch module；The first interface connection ADC interface of switch module, second interface connects one end of the first module in one end of testing resistance, the 3rd interface connection mobile terminal, the other end ground connection of testing resistance；Switch module has detection state and non-detection status；When switch module is in detection state, testing resistance is accessed ADC interface by switch module；When switch module is in non-detection status, the first module is accessed ADC interface by switch module.Present invention also offers a kind of detection method of mobile terminal so that when ADC interface is not enough, also can smoothly detect the partial pressure value of resistance, while controlling cost.
Description
Technical field
The present invention relates to the detection circuit and its detection method of testing field, more particularly to mobile terminal.
Background technology
In Cell Phone Design, because the hardware of different model is, it is necessary to match different softwares, so in test, it is necessary to
The different model of hardware is first distinguished, different softwares are loaded further according to different models.
It was found by the inventors of the present invention that the different model in order to distinguish same type module, typically checks the ID of module,
Such as battery, is to add the detection resistances of different resistances, AP ends (i.e. the system side of terminal) detection electricity for the battery of different model
Partial pressure value is hindered, so as to recognize different battery sizes.AP ends are detected by ADC (digital-to-analogue conversion interface), but often can
Occur the not enough situation of ADC interface, if plus special ADC chips, add cost, lose more than gain.
The content of the invention
It is an object of the invention to provide the detection circuit and its detection method of a kind of mobile terminal so that in ADC interface
When not enough, the partial pressure value of resistance also can be smoothly detected, while controlling cost.
In order to solve the above technical problems, embodiments of the present invention provide a kind of detection circuit of mobile terminal, it is used for
Detect the partial pressure value of testing resistance；It is connected with the digital-to-analogue conversion ADC interface of system AP sides in mobile terminal；Comprising：Switch module；
The first interface of the switch module connects the ADC interface, and second interface connects one end of the testing resistance, the 3rd interface
Connect one end of the first module in mobile terminal, the other end ground connection of the testing resistance；The switch module has detection
State and non-detection status；When the switch module is in detection state, the switch module accesses the testing resistance
The ADC interface；When the switch module is in non-detection status, the switch module accesses first module described
ADC interface.
Embodiments of the present invention additionally provide a kind of detection method of mobile terminal, by mobile terminal mentioned above
Detect that circuit is performed；Including：Judge the access ADC interface is testing resistance or the first module；Judging described to be measured
When resistance accesses the ADC interface, the partial pressure value of the testing resistance is read；Judging the first module access ADC
During interface, the numerical value of first module is read.
Embodiment of the present invention in terms of existing technologies, is multiplexed so that existing to existing ADC interface
ADC interface can realize the data acquisition to original function module, can also obtain the partial pressure value of testing resistance.Due to being multiplexed
Switch module is use only in journey, the price of switch module is far below ADC, so be almost not required to be added to this, just can be real
Now to the detection of testing resistance；Further, since the connected mode of switch module is relatively simple, so in embodiment of the present invention
Detect that circuit structure is simple, it is easy to accomplish, beneficial to popularization.
As a further improvement, the switch module also has input interface, the switch module is according to from the input
The height of the level of interface input determines that status is detection state or non-detection status.Determined using the height of incoming level
The conduction mode of switch is easy to be accurate when realizing.
As a further improvement, the switch module is single-pole double-throw switch (SPDT).Further limit switch module double as hilted broadsword
The cost of throw switch, effectively reduction detection circuit.
Brief description of the drawings
Fig. 1 is the circuit diagram of the detection circuit of the mobile terminal in first embodiment of the invention；
Fig. 2 is the flow chart of the detection method of the mobile terminal in second embodiment of the invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with each reality of the accompanying drawing to the present invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the invention,
In order that reader more fully understands the application and proposes many ins and outs.But, even if without these ins and outs and base
Many variations and modification in following embodiment, can also realize each claim of the application technical side claimed
Case.
The first embodiment of the present invention is related to a kind of detection circuit of mobile terminal.The detection circuit is used to detect to be measured
The partial pressure value of resistance, is connected, mobile terminal can be mobile phone with the digital-to-analogue conversion ADC interface of system in mobile terminal (AP) side.
Its structure is as shown in figure 1, specifically include：Switch module in switch module, present embodiment can have six
Interface：First interface (i.e. COM ends) therein connects ADC interface, second interface (i.e. NC ends) connection testing resistance R2 one end
One end (i.e. ADC2 ends) of the first module in (C-terminal), the 3rd interface (i.e. NO ends) connection mobile terminal, the 4th interface (i.e. IN
End) connection GPIO port, and IN ends also include a resistance R3, R3 is connected between IN ends and earth terminal, the 5th interface (i.e. V+
End) connection operating voltage VCC, the 6th interface (i.e. GND ends) ground connection.In addition, the other end ground connection of testing resistance, specifically,
It can also be connected in circuit including resistance R1, testing resistance R2 and resistance R1 between voltage end VIO and earth terminal.
Go on to say, switch module has detection state and non-detection status.Wherein, it is in detection state in switch module
When, testing resistance is accessed ADC interface by switch module；When switch module is in non-detection status, switch module is by the first mould
Block accesses ADC interface.Wherein, the first module can be temperature detecting module or charger identification module.
It is noted that the switch module in present embodiment can be according to the electricity inputted from input interface (i.e. IN ends)
Flat height determines that status is detection state or non-detection status.Specifically, switch module is in the level inputted
Detection state is in during low level, non-detection status are in when the level inputted is high level.In particular, this implementation
What the input interface in mode was connected is the GPIO interface of AP sides, and low and high level is inputted using GPIO interface, is controlled very easy.
Detection circuit in embodiment of the present invention is for detection resistance R2 partial pressure value, according to resistance R2 partial pressure value
Can be with the model of identification module.Although it was found by the inventors of the present invention that detect R2 partial pressure value when need to use ADC interface,
But and need not use always, that is to say, that ADC interface only need to detection partial pressure value time used i.e. for testing resistance
Can, it is possible to and other module reuse ADC interfaces.Specific operation principle is that, when needing to be detected, GPIO ends are provided
Low level, i.e. the IN ends input low level from switch module, that is, switch module is in detection state, now, ADC interface
With C-terminal conducting, ADC interface can collect the magnitude of voltage of C points.After the completion of collection or after preset time, the level at GPIO ends is drawn
Height, i.e. the IN ends input high level from switch module, ADC interface and C-terminal disconnect, and the conducting of ADC2 interfaces, now, ADC interface
The data in the first module can be gathered, use of first module to ADC interface is not influenceed thus.Detect the logical table of circuit
It is as shown in table 1 below：
| LOGIC | NO | NC |
| 0 | OFF | ON |
| 1 | ON | OFF |
Table 1
It is noted that the switch module in present embodiment uses the switch module of six interfaces, in practical application
In, single-pole double-throw switch (SPDT), or other switch modules can be used, be will not enumerate herein.
Present embodiment in terms of existing technologies, is multiplexed to existing ADC interface so that existing ADC connects
Mouth can realize the data acquisition to original function module, can also obtain the partial pressure value of testing resistance.Due in multiplex process
Switch module is use only, and the price of switch module is far below ADC, so being almost not required to be added to this, can be achieved with
Detection to testing resistance；In addition, the detection circuit structure in embodiment of the present invention using switch module realization is simple, easily
In realization, beneficial to popularization.
Second embodiment of the invention is related to a kind of detection method of mobile terminal, by the mobile end in first embodiment
The detection circuit at end is performed；Its flow chart is as shown in Fig. 2 specifically include：
Step 201, judge access ADC interface is testing resistance or the first module；If it is determined that being testing resistance, then hold
Row step 202；If it is determined that being the first module, then step 203 is performed.
Specifically, the height of the level inputted according to the input (i.e. IN ends) from switch module, judges that access ADC connects
Mouth is testing resistance or the first module.Meanwhile, if the level inputted is low level, it is determined that testing resistance is accessed
ADC interface；If the level inputted is high level, it is determined that the first module is by access ADC interface.
Step 202, the partial pressure value of testing resistance is read.
Specifically, this step is, when judging testing resistance access ADC interface, to read the partial pressure value of testing resistance.
Step 203, the numerical value of the first module is read.
Specifically, when judging the first module access ADC interface, the numerical value of the first module is read.
Detection circuit in embodiment of the present invention is for detection resistance R2 partial pressure value, according to resistance R2 partial pressure value
Can be with the model of identification module.Although it was found by the inventors of the present invention that detect R2 partial pressure value when need to use ADC interface,
But and need not use always, that is to say, that ADC interface only need to detection partial pressure value time used i.e. for testing resistance
Can, it is possible to and other module reuse ADC interfaces.Specific operation principle is that, when needing to be detected, GPIO ends are provided
Low level, i.e. the IN ends input low level from switch module, that is, switch module is in detection state, now, ADC interface
With C-terminal conducting, ADC interface can collect the magnitude of voltage of C points.After the completion of collection or after preset time, the level at GPIO ends is drawn
Height, i.e. the IN ends input high level from switch module, ADC interface and C-terminal disconnect, and the conducting of ADC2 interfaces, now, ADC interface
The data in the first module can be gathered, use of first module to ADC interface is not influenceed thus.
Present embodiment in terms of existing technologies, is multiplexed to existing ADC interface so that existing ADC connects
Mouth can realize the data acquisition to original function module, can also obtain the partial pressure value of testing resistance.Due in multiplex process
Switch module is use only, and the price of switch module is far below ADC, so being almost not required to be added to this, can be achieved with
Detection to testing resistance；In addition, the detection method step in embodiment of the present invention using switch module realization is simple, easily
In realization, beneficial to popularization.
It is seen that, present embodiment is the embodiment of the method corresponding with first embodiment, and present embodiment can be with
First embodiment is worked in coordination implementation.The relevant technical details mentioned in first embodiment still have in the present embodiment
Effect, in order to reduce repetition, is repeated no more here.Correspondingly, the relevant technical details mentioned in present embodiment are also applicable in
In first embodiment.
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific embodiment of the present invention,
And in actual applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (10)
1. a kind of detection circuit of mobile terminal, it is characterised in that the partial pressure value for detecting testing resistance；With in mobile terminal
The digital-to-analogue conversion ADC interface connection of system AP sides；Comprising：Switch module；
The first interface of the switch module connects the ADC interface, and second interface connects one end of the testing resistance, the 3rd
One end of the first module in interface connection mobile terminal, the other end ground connection of the testing resistance；The switch module has
Detection state and non-detection status；
When the switch module is in detection state, the testing resistance is accessed the ADC interface by the switch module；
When the switch module is in non-detection status, first module is accessed the ADC interface by the switch module.
2. the detection circuit of mobile terminal according to claim 1, it is characterised in that the switch module also has input
Interface, the switch module determines that status is detection state or non-according to the height of the level inputted from the input interface
Detection state.
3. the detection circuit of the mobile terminal according to claim 2, it is characterised in that the switch module is being inputted
Level be low level when be in detection state, the level inputted be high level when be in non-detection status.
4. the detection circuit of mobile terminal according to claim 2, it is characterised in that the input interface and earth terminal it
Between connect a resistance.
5. the detection circuit of mobile terminal according to claim 1, it is characterised in that the switch module is single-pole double throw
Switch.
6. the detection circuit of mobile terminal according to claim 1, it is characterised in that first module is temperature detection
Module or charger identification module.
7. a kind of detection method of mobile terminal, it is characterised in that as the mobile end described in any one in claim 1 to 6
The detection circuit at end is performed；Including：
Judge the access ADC interface is testing resistance or the first module；
When judging that the testing resistance accesses the ADC interface, the partial pressure value of the testing resistance is read；
When judging that first module accesses the ADC interface, the numerical value of first module is read.
8. the detection method of mobile terminal according to claim 7, it is characterised in that the judgement accesses the ADC and connect
Mouth is testing resistance or the first module, is specially：
According to the height of the level of the input input from the switch module, judge the access ADC interface is electricity to be measured
Resistance or the first module；
Also include：
If the level inputted is low level, it is determined that the testing resistance is accessed the ADC interface；
If the level inputted is high level, it is determined that first module is accessed the ADC interface.
9. the detection method of mobile terminal according to claim 1, it is characterised in that the switch module is single-pole double throw
Switch.
10. the detection method of mobile terminal according to claim 1, it is characterised in that first module is examined for temperature
Survey module or charger identification module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710292215.9A CN107192880A (en) | 2017-04-28 | 2017-04-28 | The detection circuit and its detection method of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710292215.9A CN107192880A (en) | 2017-04-28 | 2017-04-28 | The detection circuit and its detection method of mobile terminal |
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| Publication Number | Publication Date |
|---|---|
| CN107192880A true CN107192880A (en) | 2017-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710292215.9A Pending CN107192880A (en) | 2017-04-28 | 2017-04-28 | The detection circuit and its detection method of mobile terminal |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762335A (en) * | 2008-12-24 | 2010-06-30 | 精工电子有限公司 | Temperature detection circuit |
| CN102427569A (en) * | 2011-12-20 | 2012-04-25 | 杭州硅星科技有限公司 | Headset interface and GPIO (General Purpose Input/Output) interface multiplex circuit structure |
| CN103268965A (en) * | 2013-04-18 | 2013-08-28 | 深圳市金立通信设备有限公司 | Battery detection circuit, battery and mobile terminal |
| CN203242716U (en) * | 2013-04-09 | 2013-10-16 | 青岛海信移动通信技术股份有限公司 | Battery, battery type detection circuit and mobile terminal |
| CN103676729A (en) * | 2013-11-29 | 2014-03-26 | 青岛歌尔声学科技有限公司 | Digital knob switch multiplexing device and electronic equipment using same |
| CN105182154A (en) * | 2015-08-25 | 2015-12-23 | 广东欧珀移动通信有限公司 | Universal serial bus interface detection circuit and method |
-
2017
- 2017-04-28 CN CN201710292215.9A patent/CN107192880A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762335A (en) * | 2008-12-24 | 2010-06-30 | 精工电子有限公司 | Temperature detection circuit |
| CN102427569A (en) * | 2011-12-20 | 2012-04-25 | 杭州硅星科技有限公司 | Headset interface and GPIO (General Purpose Input/Output) interface multiplex circuit structure |
| CN203242716U (en) * | 2013-04-09 | 2013-10-16 | 青岛海信移动通信技术股份有限公司 | Battery, battery type detection circuit and mobile terminal |
| CN103268965A (en) * | 2013-04-18 | 2013-08-28 | 深圳市金立通信设备有限公司 | Battery detection circuit, battery and mobile terminal |
| CN103676729A (en) * | 2013-11-29 | 2014-03-26 | 青岛歌尔声学科技有限公司 | Digital knob switch multiplexing device and electronic equipment using same |
| CN105182154A (en) * | 2015-08-25 | 2015-12-23 | 广东欧珀移动通信有限公司 | Universal serial bus interface detection circuit and method |
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Application publication date: 20170922 |