CN107391399B - Mobile terminal, SD card detection frequency control method thereof and storage medium - Google Patents
Mobile terminal, SD card detection frequency control method thereof and storage medium Download PDFInfo
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- CN107391399B CN107391399B CN201710545733.7A CN201710545733A CN107391399B CN 107391399 B CN107391399 B CN 107391399B CN 201710545733 A CN201710545733 A CN 201710545733A CN 107391399 B CN107391399 B CN 107391399B
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- preset value
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/102—Program control for peripheral devices where the programme performs an interfacing function, e.g. device driver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3816—Mechanical arrangements for accommodating identification devices, e.g. cards or chips; with connectors for programming identification devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3816—Mechanical arrangements for accommodating identification devices, e.g. cards or chips; with connectors for programming identification devices
- H04B1/3818—Arrangements for facilitating insertion or removal of identification devices
Abstract
The invention discloses a mobile terminal, a method for controlling the detection frequency of an SD card of the mobile terminal and a storage medium, wherein a proximity sensor is arranged near a card slot, and the proximity sensor is started to detect the distance change of an object in front of the proximity sensor; when the proximity sensor detects that the distance is changed from a first preset value to a second preset value, or the distance is changed from the second preset value to the first preset value, whether the SD card is in place or not is judged by sending an instruction to the SD card at a higher first frequency, and the execution is continued for 10 seconds; otherwise, the SD card is judged whether to be in place or not by sending an instruction to the SD card at a lower second frequency. By the method, the purpose of replacing the SD card in the starting state of the mobile terminal in the prior art is not influenced, and meanwhile, the metal elastic sheet used for detecting the SD card on the card holder in the prior art can be removed, so that the purpose of reducing the size of the card holder is achieved.
Description
Technical Field
The invention relates to the field of mobile terminals, in particular to a mobile terminal, an SD card detection frequency control method thereof and a storage medium.
Background
In the prior art, the detection of the insertion of the SD card in the power-on state of the mobile terminal has been realized, so that the user is prevented from the trouble of shutdown for each SD card replacement.
In the prior art, the following scheme is adopted for the insertion detection of the SD card in the mobile terminal startup state: additionally adding a GPIO pin on the SD card seat for realizing the interrupt detection of the SD card insertion; therefore, one pin is required on the card socket for interrupt detection of SD card insertion in addition to the pin for the function of the SD card itself.
As shown in fig. 1, which is a schematic diagram of the SD card inserted into the card socket most commonly used in the prior art, when the SD card is not inserted into the card socket, the GPIO pin is connected to a resistor Rp to be pulled up to VLDO; when the SD card is not inserted into the card seat, the metal elastic sheet is pulled up to the VLDO and is in a high level; when the SD card is inserted into the card seat, the metal elastic sheet is contacted with the card seat, and the wall of the card seat is grounded, so that the metal elastic sheet is at a low level; therefore, the central processing unit can judge whether the SD card is inserted into the card seat according to the level of the metal elastic sheet.
The prior art has the defect that the metal elastic sheet for detecting the insertion of the SD card is positioned in the card holder, so that the card holder is large in size. In addition, the metal elastic sheet is difficult to avoid elastic change after being used for many times, and the detection of the insertion of the SD card is influenced. .
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The present invention provides a mobile terminal, a method for controlling detection frequency of an SD card thereof, and a storage medium, aiming at the above-mentioned defects in the prior art. The invention can realize the purpose of replacing the SD card in the starting state of the mobile terminal in the prior art without influencing, and can remove the metal elastic sheet used for detecting the SD card on the card holder in the prior art, thereby achieving the purpose of reducing the volume of the card holder.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a method for controlling the detection frequency of a mobile terminal SD card comprises the following steps:
a, arranging a proximity sensor at the side of a card slot of an SD card of the mobile terminal, and starting the proximity sensor to detect the distance change of an object in front of the proximity sensor;
b, when the proximity sensor detects that the distance is changed from a first preset value to a second preset value, or the distance is changed from the second preset value to the first preset value, executing C, otherwise executing D;
c, judging whether the SD card is in place or not by sending an instruction to the SD card at a first frequency, and continuously executing for a first preset time;
and D, judging whether the SD card is in place or not by sending an instruction to the SD card at a second frequency.
The method for controlling the detection frequency of the SD card of the mobile terminal comprises the step A of detecting the SD card, wherein the proximity sensor in the step A needs to be arranged near a card slot of the SD card, and a point of the detection distance faces the outside of the mobile terminal.
In the method for controlling the detection frequency of the SD card of the mobile terminal, the values of the first preset value and the second preset value in step B should both be less than 5 cm, and the difference should be large within 5 cm.
The detection frequency control method for the SD card of the mobile terminal comprises the following steps that a first preset value in the step B is 0.5 cm, a second preset value is 4 cm, and the first preset time is 10 seconds.
The method for controlling the detection frequency of the SD card of the mobile terminal comprises the following steps: setting the following steps to be performed at a first frequency:
whether the SD card is in place is judged by sending an instruction to the SD card, and the execution lasts for 10 seconds.
The method for controlling the detection frequency of the SD card of the mobile terminal, wherein the first frequency in the step C is preferably 1 time/second; the second frequency in the step D is preferably 10 seconds and 1 time.
The method for controlling the detection frequency of the SD card of the mobile terminal comprises the following steps: setting the following steps to be executed at a second frequency: whether the SD card is in place is judged by sending an instruction to the SD card.
The method for controlling the detection frequency of the SD card of the mobile terminal, wherein the step C or D of determining whether the SD card is in place by sending an instruction to the SD card specifically includes:
acquiring the value of the CID register of the SD card, comprising the following steps:
s1, sending a command CMD0 to the SD card for software initialization of the SD card;
s2, sending a command CMD10 to the SD card, wherein the command CMD10 is used for acquiring the content of a CID register of the SD card;
s3, reading the response of the SD card to the CMD 10.
A mobile terminal comprising a processor, and a memory coupled to the processor,
the memory stores a computer program which realizes the steps of any one of the mobile terminal SD card detection frequency control methods when being executed by the processor;
the processor is used for calling the program instructions in the memory so as to execute the steps of any one of the above-mentioned mobile terminal SD card detection frequency control methods.
A storage medium, wherein the storage medium stores a computer program, and the computer program is executed by a processor to perform any one of the steps of the method for controlling the detection frequency of the SD card of the mobile terminal.
The mobile terminal, the SD card detection frequency control method and the storage medium thereof provided by the invention have the advantages that the proximity sensor is arranged near the card slot, and the proximity sensor is started to detect the distance change of an object in front of the proximity sensor; when the proximity sensor detects that the distance is changed from a first preset value to a second preset value, or the distance is changed from the second preset value to the first preset value, whether the SD card is in place or not is judged by sending an instruction to the SD card at a higher first frequency, and the execution is continued for 10 seconds; otherwise, the SD card is judged whether to be in place or not by sending an instruction to the SD card at a lower second frequency. By the method, the purpose of replacing the SD card in the starting state of the mobile terminal in the prior art is not influenced, and meanwhile, the metal elastic sheet used for detecting the SD card on the card holder in the prior art can be removed, so that the purpose of reducing the size of the card holder is achieved.
Drawings
Fig. 1 is a schematic diagram of a prior art SD card of a mobile terminal.
FIG. 2 is a flowchart illustrating a method for controlling the detection frequency of the SD card of the mobile terminal according to a preferred embodiment of the present invention.
Fig. 3 is a schematic view showing the position of the proximity sensor arrangement of the present invention.
Fig. 4 is a functional block diagram of a mobile terminal according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 2, fig. 2 is a flowchart illustrating a method for controlling a detection frequency of an SD card of a mobile terminal according to a preferred embodiment of the present invention. As shown in fig. 2, a method for controlling a detection frequency of an SD card of a mobile terminal according to an embodiment of the present invention includes the following steps:
and step S100, arranging a proximity sensor at the side of a card slot of the SD card of the mobile terminal, and starting the proximity sensor to detect the distance change of an object in front of the proximity sensor.
The proximity sensor of the present invention needs to be disposed near the card slot of the SD card with the point of detection distance facing the outside of the mobile terminal. As shown in fig. 3, 10 is a place where the SD card is inserted, 20 is a side surface of the mobile terminal, and 30 is a proximity sensor position.
As shown in fig. 3, since the proximity sensor is disposed near the card slot of the SD card, a distance change of the proximity sensor detecting a front object is inevitably caused when the user inserts and removes the SD card.
Step S200, when the proximity sensor detects that the distance changes from the first preset value to the second preset value, or changes from the second preset value to the first preset value, step S300 is executed, otherwise step S400 is executed.
That is, in the present invention, when the proximity sensor detects that the distance of the SD card inserted into the SD card slot changes from the first preset value to the second preset value, or from the second preset value to the first preset value, step S300 is executed, otherwise step S400 is executed.
In the present invention, preferably, the first preset value and the second preset value should both be smaller than 5 cm, and the difference between the first preset value and the second preset value should be larger within a range of 5 cm. For example, preferably, the first preset value is 0.5 cm, and the second preset value is 4 cm.
Step S300, whether the SD card is in place is judged by sending an instruction to the SD card at a first frequency, and a first preset time is continuously executed.
In the invention, whether the SD card is in place is judged by sending an instruction to the SD card at a higher first frequency, and the first preset time is continuously executed, wherein the first preset time is preferably 10 seconds.
In this step: setting the following steps to be performed at a first frequency:
whether the SD card is in place is judged by sending an instruction to the SD card, and the execution lasts for 10 seconds. Wherein, the first frequency is preferably 1 time/second.
That is to say, in the embodiment of the present invention, whether the SD card is in place is determined by sending an instruction to the SD card at a frequency of 1 time/second, and when the instruction is responded, it is indicated that the SD card is in place, otherwise, it is indicated that the SD card is not in place; the process continues for 10 seconds and then proceeds to step S400 instead.
For example, a command for reading the CID register value is sent to the SD card, if we successfully read the CID register value of the SD card, the SD card is in place, otherwise, the SD card is not in place; specifically, the obtaining of the value of the CID register of the SD card includes:
s1, sending a command CMD0 to the SD card for software initialization of the SD card;
s2, sending a command CMD10 to the SD card, wherein the command CMD10 is used for acquiring the content of a CID register of the SD card;
s3, reading the response of the SD card to the CMD10, wherein the response is the value of the CID register and indicates that the SD card is in a bit; if no response is made, the SD card is not in place.
And step S400, judging whether the SD card is in place or not by sending an instruction to the SD card at a second frequency.
In this step, the following steps are executed at the second frequency: whether the SD card is in place is judged by sending an instruction to the SD card. The second frequency is preferably 10 seconds 1 time.
That is, whether the SD card is in place is judged by sending an instruction to the SD card at the frequency of 1 time in 10 seconds, and when the instruction is responded, the SD card is in place, otherwise, the SD card is not in place; if yes in step S200, the execution of this step is stopped for 10 seconds, and then step S300 is executed, and the rest of this step is executed all the time.
A process of judging whether the SD card is in place or not by sending an instruction to the SD card; for example, the invention sends a command for reading the CID register value to the SD card, and if the CID register value of the SD card is successfully read, the SD card is in place, otherwise, the SD card is not in place; specifically, the obtaining of the value of the CID register of the SD card includes:
s1, sending a command CMD0 to the SD card for software initialization of the SD card;
s2, sending a command CMD10 to the SD card, wherein the command CMD10 is used for acquiring the content of a CID register of the SD card;
s3, reading the response of the SD card to the CMD10, wherein the response is the value of the CID register and indicates that the SD card is in a bit; if no response is made, the SD card is not in place.
In the method, the proximity sensor is arranged near the card slot, and the proximity sensor is started to detect the distance change of an object in front of the proximity sensor; when the proximity sensor detects that the distance is changed from a first preset value to a second preset value, or the distance is changed from the second preset value to the first preset value, whether the SD card is in place or not is judged by sending an instruction to the SD card at a higher first frequency, and the execution is continued for 10 seconds; otherwise, the SD card is judged whether to be in place or not by sending an instruction to the SD card at a lower second frequency. By the method, the purpose of replacing the SD card in the starting state of the mobile terminal in the prior art is not influenced, and meanwhile, the metal elastic sheet used for detecting the SD card on the card holder in the prior art can be removed, so that the purpose of reducing the size of the card holder is achieved.
Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program instructing relevant hardware (such as a processor, a controller, etc.), and the program may be stored in a computer readable storage medium, and when executed, the program may include the processes of the above method embodiments. The storage medium may be a memory, a magnetic disk, an optical disk, etc.
Example two
An embodiment of the present invention further provides a mobile terminal, as shown in fig. 4, where the mobile terminal includes a processor 10, and a memory 20 connected to the processor 10;
the memory 20 stores a computer program, and the computer program realizes the steps of the method for controlling the detection frequency of the SD card of the mobile terminal according to any one of the above embodiments when executed by the processor 10;
the processor 10 is configured to call the program instructions in the memory to execute the steps of the mobile terminal SD card detection frequency control method according to any one of the above embodiments. As described above.
EXAMPLE III
The storage medium stores a computer program, and the computer program is executed by the processor 10 to implement the steps of any one of the above methods for controlling the SD card detection frequency of the mobile terminal, as described above.
In summary, in the mobile terminal, the SD card detection frequency control method, and the storage medium provided by the present invention, the proximity sensor is disposed near the card slot, and the proximity sensor is started to detect the distance change of the object in front of the proximity sensor; when the proximity sensor detects that the distance is changed from a first preset value to a second preset value, or the distance is changed from the second preset value to the first preset value, whether the SD card is in place or not is judged by sending an instruction to the SD card at a higher first frequency, and the execution is continued for 10 seconds; otherwise, the SD card is judged whether to be in place or not by sending an instruction to the SD card at a lower second frequency. By the method, the purpose of replacing the SD card in the starting state of the mobile terminal in the prior art is not influenced, and meanwhile, the metal elastic sheet used for detecting the SD card on the card holder in the prior art can be removed, so that the purpose of reducing the size of the card holder is achieved.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (9)
1. A method for controlling the detection frequency of a mobile terminal SD card is characterized by comprising the following steps:
a, arranging a proximity sensor at the side of a card slot of an SD card of the mobile terminal, and starting the proximity sensor to detect the distance change of an object in front of the proximity sensor; the proximity sensor in the step A needs to be arranged near a card slot of the SD card, and a point of the detection distance faces the outside of the mobile terminal;
b, stopping executing the step for 10 seconds and executing the step C when the proximity sensor detects that the distance is changed from the first preset value to the second preset value or the distance is changed from the second preset value to the first preset value, otherwise executing the step D, and executing the step D all the time except the time for executing the step C; wherein the first preset value and the second preset value are both smaller than a preset distance value, and the second preset value is several times larger than the first preset value;
c, judging whether the SD card is in place or not by sending an instruction to the SD card at a first frequency, and continuously executing for a first preset time; d, judging whether the SD card is in place or not by sending an instruction to the SD card at a second frequency; the first frequency is greater than the second frequency.
2. The method as claimed in claim 1, wherein the first preset value and the second preset value in step B are both less than 5 cm, and the difference between the first preset value and the second preset value is within 5 cm.
3. The method for controlling the detection frequency of the SD card of the mobile terminal according to claim 1, wherein the first preset value in step B is 0.5 cm, the second preset value is 4 cm, and the first preset time is 10 seconds.
4. The method for controlling the detection frequency of the SD card of the mobile terminal according to claim 1, wherein the step C comprises: setting the following steps to be performed at a first frequency:
whether the SD card is in place is judged by sending an instruction to the SD card, and the execution lasts for 10 seconds.
5. The method for controlling the detection frequency of the SD card of the mobile terminal according to claim 1, wherein the first frequency in the step C is 1/s; the second frequency in the step D is 10 seconds and 1 time.
6. The SD card detection frequency control method according to claim 1, wherein said step D comprises: setting the following steps to be executed at a second frequency: whether the SD card is in place is judged by sending an instruction to the SD card.
7. The method for controlling the detection frequency of the SD card of the mobile terminal according to claim 1, wherein the step C or D of determining whether the SD card is in place by sending the command to the SD card specifically comprises:
acquiring the value of the CID register of the SD card, comprising the following steps:
s1, sending a command CMD0 to the SD card for software initialization of the SD card;
s2, sending a command CMD10 to the SD card, wherein the command CMD10 is used for acquiring the content of a CID register of the SD card;
s3, reading the response of the SD card to the CMD 10.
8. A mobile terminal comprising a processor, and a memory coupled to the processor,
the memory stores a computer program which, when executed by the processor, implements the steps of the mobile terminal SD card detection frequency control method of any one of claims 1 to 7;
the processor is used for calling the program instructions in the memory to execute the steps of the mobile terminal SD card detection frequency control method of any one of the above claims 1-7.
9. A storage medium, characterized in that the storage medium stores a computer program which, when executed by a processor, implements the steps of the mobile terminal SD card detection frequency control method according to any one of claims 1 to 7.
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| CN201710545733.7A CN107391399B (en) | 2017-07-06 | 2017-07-06 | Mobile terminal, SD card detection frequency control method thereof and storage medium |
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| CN201710545733.7A CN107391399B (en) | 2017-07-06 | 2017-07-06 | Mobile terminal, SD card detection frequency control method thereof and storage medium |
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| CN107391399B true CN107391399B (en) | 2022-01-11 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109728830A (en) * | 2018-12-26 | 2019-05-07 | Tcl移动通信科技（宁波）有限公司 | Mobile terminal SIM detection processing method, mobile terminal and storage medium |
| CN109493081A (en) * | 2018-12-28 | 2019-03-19 | Tcl移动通信科技（宁波）有限公司 | A kind of SD card authentication method, system and storage medium for financial transaction |
| CN110912574B (en) * | 2019-12-27 | 2022-03-25 | Tcl移动通信科技（宁波）有限公司 | SIM card detection method, device, storage medium and terminal |
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