CN103852615A - Portable mobile terminal and method for measuring current of external-connection device - Google Patents
Portable mobile terminal and method for measuring current of external-connection device Download PDFInfo
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- CN103852615A CN103852615A CN201210506249.0A CN201210506249A CN103852615A CN 103852615 A CN103852615 A CN 103852615A CN 201210506249 A CN201210506249 A CN 201210506249A CN 103852615 A CN103852615 A CN 103852615A
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Abstract
The invention relates to a portable mobile terminal and a method for measuring the current of an external-connection device. The portable mobile terminal comprises an earphone interface, an audio processing circuit including an audio processing closed circuit and a signal restoration closed circuit, and a switching circuit, wherein the switching circuit comprises a control end and two switchable ports, wherein one switchable port is connected with the audio processing closed circuit, and the other switchable port is connected with the signal restoration closed circuit. The method comprises the following steps that: the type of the external-connection device is acquired when the external-connection device is connected with the earphone interface; when the external-connection device is not an earphone, the switching circuit is controlled and made to be switched from the audio processing closed circuit to the signal restoration closed circuit; and an application unit is controlled and made to execute current measurement application software. According to the portable mobile terminal and the method for measuring the current of the external-connection device, the earphone interface of the mobile terminal and the audio processing circuit inside the mobile terminal are utilized, and the current measurement application software is used in cooperation, and therefore, the current of the external-connection device can be measured. The portable mobile terminal is advantageous in portable convenience.
Description
Technical field
The present invention relates to a kind of portable mobile termianl, relate in particular to a kind of method that tool is measured the portable mobile termianl of function of current and measured the electric current of external device.
Background technology
Engineering staff measured electric current in the past must lean on current measure device, after connection computer, carries out computing by software, and such measuring method is only suitable in laboratory applications, the personnel that need are tested, and tester table is not easy to mobile, very inconvenient.
Summary of the invention
The invention provides a kind of method that tool is measured the portable mobile termianl of function of current and measured the electric current of external device.
A kind of portable mobile termianl, is connected with an external device, for measuring the electric current of external device, comprises earphone interface and an audio frequency processing circuit of a connection external device, and this audio frequency processing circuit comprises an audio frequency processing path and signal reduction path.This portable mobile termianl also comprises: a circuit for detecting, for obtain the type of external device in the time that external device is connected to earphone interface; One control circuit; One on-off circuit, comprises a control end and two changeable ports, and this control end is connected with control circuit, and a changeable port connects audio frequency and processes path, and another changeable port connects signal reduction path; One applying unit, comprises some current measurement application software; Wherein, this control circuit is according to the type of external device, gauge tap circuit switches between two changeable ports, thereby processes between path and signal reduction path and switch at audio frequency, controls applying unit and carry out current measurement application software in the time that on-off circuit switches to signal reduction path.
A kind of portable mobile termianl is measured the method for the electric current of external device, this portable mobile termianl comprises that the earphone interface, of a connection external device comprises the audio frequency processing circuit of an audio frequency processing path and signal reduction path, an and on-off circuit, this on-off circuit comprises a control end and two changeable ports, a changeable port connects audio frequency and processes path, and another changeable port connects signal reduction path.The method comprising the steps of: the type of obtaining external device in the time that external device is connected to earphone interface; In the time that external device is not earphone, gauge tap circuit is processed path from audio frequency and is switched to signal reduction path; And control applying unit and carry out current measurement application software.
The method of the electric current of portable mobile termianl of the present invention and measurement external device, utilize the earphone interface of mobile terminal and inner audio frequency processing circuit and in conjunction with current measurement application software, the function that realizes the electric current of measuring external device, is easy to carry and convenience is provided.
Accompanying drawing explanation
Fig. 1 is the circuit diagram that under preferred embodiments of the present invention, tool is measured the portable mobile termianl of function of current.
Fig. 2 is the method flow diagram of the electric current of the measurement external device of portable mobile termianl under preferred embodiments of the present invention.
Main element symbol description
| Mobile terminal | 10 |
| External device | 20 |
| Earphone interface | 110 |
| Circuit for detecting | 120 |
| Control circuit | 130 |
| On-off circuit | 140 |
| Audio frequency processing circuit | 150 |
| Applying unit | 160 |
| Second switch circuit | 170 |
| Power-supply circuit | 180 |
| Audio frequency is processed path | 1501 |
| Signal reduction path | 1502 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Referring to Fig. 1, is the circuit diagram that under preferred embodiments of the present invention, tool is measured the portable mobile termianl of function of current.This mobile terminal 10 connects an external device 20, for carrying out and measure function of current in the time that external device 20 being not earphone, measures the electric current of external device.This mobile terminal 10 can be a smart mobile phone.This portable mobile termianl 10 comprises earphone interface 110, one circuit for detecting 120, a control circuit 130, an on-off circuit 140, an audio frequency processing circuit 150 and an applying unit 160.
This earphone interface 110, for connecting external device 20.
Whether this circuit for detecting 120 is connected to earphone interface 110 for detecting external device 20, and in the time that external device 20 is connected to earphone interface 110, obtains the type of external device 20.Concrete, when circuit for detecting 120 is connected with external device 20 according to earphone interface 110, the magnitude of voltage difference of generation is obtained the type of external device 20.As, when external device 20 is earphone, produce the magnitude of voltage of 1V, when external device 20 is other types electronic installation, produce the magnitude of voltage of 1.5V.
This control circuit 130 is a fundamental frequency chip.
Audio frequency processing circuit 150 comprises an audio frequency processing path 1501 and signal reduction path 1502, and these signal reduction path 1502 fingers are by the path of the undistorted transmission of input signal.
This on-off circuit 140 comprises a control port and two changeable ports, and this control end is connected with control circuit, and two changeable ports connect respectively audio frequency and process path 1501 and signal reduction path 1502.Control circuit 130 is according to the type of external device, and gauge tap circuit 140 switches between two changeable ports, thereby processes between path 1501 and signal reduction path 1502 and switch at audio frequency.
This applying unit 160 comprises some current measurement application software, as current measurement software, is specially according to input current and draws current waveform and show; Audio frequency oscillograph software, is specially according to input current and does time and frequency analysis etc. and show.
Concrete, described on-off circuit is one first single-pole double-throw switch (SPDT), described control circuit 130, in the time that external device 20 is not earphone, is controlled the first single-pole double-throw switch (SPDT) and is switched to signal reduction path 1502 from audio frequency processing path 1501, and control applying unit 160 and carry out current measurement application software.
Under other embodiments of the present invention, described portable mobile termianl 10 also comprises a second switch circuit 170 and a power-supply circuit 180, in the time that the first single-pole double-throw switch (SPDT) switches to signal reduction path, described control circuit 130 is controlled second switch circuit 170 and is connected power-supply circuit 180 and power to described external device 20.Concrete, this second switch circuit 170 is one second single-pole double-throw switch (SPDT).
Fig. 2 is the method flow diagram of the electric current of the measurement external device of portable mobile termianl under preferred embodiments of the present invention.
In step S21, circuit for detecting 120 is detected external device 20 and whether is connected to earphone interface 110, and if so, flow process is to step S22, if not, and repeating step S21;
In step S22, circuit for detecting 120 obtains the type of external device, as is earphone or other electronic installations, is specially: the different types of obtaining external device of magnitude of voltage that produce while connection from external device according to earphone interface;
In step S23, control circuit 130, in the time that external device 20 is not earphone, is controlled the first single-pole double-throw switch (SPDT) and is switched to signal reduction path 1502 from audio frequency processing path 1501;
In step S24, control circuit 130 is controlled applying unit 160 and is carried out current measurement application software.
Under other embodiments of the present invention, said method also comprises step: in the time that the first single-pole double-throw switch (SPDT) switches to signal reduction path, described control circuit 130 is controlled second switch circuit 170 and connected power-supply circuit 180 and power to described external device 20.
This programme utilizes the earphone interface of mobile terminal 10 and inner audio frequency processing circuit 150 and in conjunction with the application software in applying unit 160, realizes the function of the electric current of measuring external device 20, is easy to carry and convenience is provided.
Claims (10)
1. a portable mobile termianl, be connected with an external device, be used for measuring the electric current of external device, comprise earphone interface and an audio frequency processing circuit of a connection external device, this audio frequency processing circuit comprises an audio frequency processing path and signal reduction path, it is characterized in that, this portable mobile termianl also comprises:
One circuit for detecting, for obtaining the type of external device in the time that external device is connected to earphone interface;
One control circuit;
One on-off circuit, comprises a control end and two changeable ports, and this control end is connected with control circuit, and a changeable port connects audio frequency and processes path, and another changeable port connects signal reduction path;
One applying unit, comprises some current measurement application software;
Wherein, this control circuit is according to the type of external device, gauge tap circuit switches between two changeable ports, thereby processes between path and signal reduction path and switch at audio frequency, controls applying unit and carry out current measurement application software in the time that on-off circuit switches to signal reduction path.
2. portable mobile termianl as claimed in claim 1, it is characterized in that, described on-off circuit is one first single-pole double-throw switch (SPDT), and described control circuit, in the time that external device is not earphone, is controlled the first single-pole double-throw switch (SPDT) and switched to signal reduction path from audio frequency processing path.
3. portable mobile termianl as claimed in claim 2, it is characterized in that, described portable mobile termianl also comprises a second switch circuit and a power-supply circuit, in the time that the first single-pole double-throw switch (SPDT) switches to signal reduction path, described control circuit control second switch circuit connects power-supply circuit to described external device power supply.
4. portable mobile termianl as claimed in claim 1, is characterized in that, described current measurement application software comprises current measurement software and audio frequency oscillography software.
5. portable mobile termianl as claimed in claim 1, is characterized in that, described control circuit is a fundamental frequency chip.
6. portable mobile termianl as claimed in claim 1, is characterized in that, the different types of obtaining external device of magnitude of voltage that produce when described circuit for detecting connects from external device according to earphone interface.
7. the method for the electric current of a portable mobile termianl measurement external device, this portable mobile termianl comprises that the earphone interface, of a connection external device comprises the audio frequency processing circuit of an audio frequency processing path and signal reduction path, an and on-off circuit, this on-off circuit comprises a control end and two changeable ports, a changeable port connects audio frequency and processes path, and another changeable port connects signal reduction path; The method comprising the steps of:
In the time that being connected to earphone interface, obtains external device the type of external device;
In the time that external device is not earphone, gauge tap circuit is processed path from audio frequency and is switched to signal reduction path; And
Control applying unit and carry out current measurement application software.
8. the method for the electric current of measurement external device as claimed in claim 7, it is characterized in that, described on-off circuit is one first single-pole double-throw switch (SPDT), it is described in the time that external device is not earphone, the step that gauge tap circuit switches to signal reduction path from audio frequency processing path is specially: in the time that external device is not earphone, controls the first single-pole double-throw switch (SPDT) and switch to signal reduction path from audio frequency processing path.
9. the method for the electric current of measurement external device as claimed in claim 8, it is characterized in that, described portable mobile termianl also comprises a second switch circuit and a power-supply circuit, and described method also comprises step: described in the time that the first single-pole double-throw switch (SPDT) switches to signal reduction path, control circuit control second switch circuit connects power-supply circuit to described external device power supply.
10. the method for the electric current of measurement external device as claimed in claim 7, it is characterized in that, the step of the described type of obtaining external device in the time that external device is connected to earphone interface is specially: the different types of obtaining external device of magnitude of voltage that produce while connection from external device according to earphone interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210506249.0A CN103852615B (en) | 2012-11-30 | 2012-11-30 | The method of the electric current of portable mobile termianl and measurement external device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210506249.0A CN103852615B (en) | 2012-11-30 | 2012-11-30 | The method of the electric current of portable mobile termianl and measurement external device |
Publications (2)
| Publication Number | Publication Date |
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| CN103852615A true CN103852615A (en) | 2014-06-11 |
| CN103852615B CN103852615B (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210506249.0A Expired - Fee Related CN103852615B (en) | 2012-11-30 | 2012-11-30 | The method of the electric current of portable mobile termianl and measurement external device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104375094A (en) * | 2014-11-21 | 2015-02-25 | 厦门美图移动科技有限公司 | Mobile terminal with electric measurement function |
| CN105979413A (en) * | 2015-03-12 | 2016-09-28 | Wbd101有限公司 | Audio plug |
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| JP2005236831A (en) * | 2004-02-23 | 2005-09-02 | Rohm Co Ltd | Signal generation circuit and optical pickup device provided with the same |
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| CN101102119A (en) * | 2007-07-17 | 2008-01-09 | 青岛海信移动通信技术股份有限公司 | A charging detection circuit of appliance device and charging detection method |
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| CN102098368A (en) * | 2011-01-28 | 2011-06-15 | 惠州Tcl移动通信有限公司 | Mobile phone |
| CN201898602U (en) * | 2010-12-27 | 2011-07-13 | 浙江安迪信信息技术有限公司 | Passive sound box interface of mobile phone |
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2012
- 2012-11-30 CN CN201210506249.0A patent/CN103852615B/en not_active Expired - Fee Related
Patent Citations (8)
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|---|---|---|---|---|
| US6229351B1 (en) * | 1998-06-09 | 2001-05-08 | U.S. Philips Corporation | Current measuring device and telephone terminal using such a current measuring device |
| JP2005236831A (en) * | 2004-02-23 | 2005-09-02 | Rohm Co Ltd | Signal generation circuit and optical pickup device provided with the same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104375094A (en) * | 2014-11-21 | 2015-02-25 | 厦门美图移动科技有限公司 | Mobile terminal with electric measurement function |
| CN105979413A (en) * | 2015-03-12 | 2016-09-28 | Wbd101有限公司 | Audio plug |
| CN105979413B (en) * | 2015-03-12 | 2019-05-10 | 卫保数码有限公司 | Audio plug |
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| Publication number | Publication date |
|---|---|
| CN103852615B (en) | 2018-02-13 |
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Effective date of registration: 20180302 Address after: Shanghai City, Songjiang Export Processing Zone South Road No. 1925 Patentee after: Ambit Microsystems (Shanghai) Co., Ltd. Address before: 201613 Shanghai City, Songjiang District Songjiang Export Processing Zone South Road No. 1925 Co-patentee before: Hon Hai Precision Industry Co., Ltd. Patentee before: Ambit Microsystems (Shanghai) Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20201130 |