CN104077549A - Intelligent card power consumption control method and intelligent card - Google Patents
Intelligent card power consumption control method and intelligent card Download PDFInfo
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- CN104077549A CN104077549A CN201310098589.9A CN201310098589A CN104077549A CN 104077549 A CN104077549 A CN 104077549A CN 201310098589 A CN201310098589 A CN 201310098589A CN 104077549 A CN104077549 A CN 104077549A
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Abstract
The invention discloses an intelligent card power consumption control method and an intelligent card. The intelligent card power consumption control method comprises the following steps that: the intelligent card detects whether a wake-up signal is received or not in a low-power-consumption state; and if the wake-up signal is received, the intelligent card enters a work state, and otherwise, the intelligent card maintains the low-power-consumption state. The intelligent card is an intelligent card realizing the data interaction with a card reading end through audio signals after entering the work state. Through the technical scheme, the technical problem of too high power consumption of the existing intelligent cards transmitting data through the audio signals is solved.
Description
Technical field
The present invention relates to electronic technology field, relate in particular to a kind of smartcard power consumption control method and smart card.
Background technology
In recent years, in fields such as identification, authentications, the smart card that adopts sound signal to realize data transmission was a novel hot technology.
Yet, current this common class smart card, its audio frequency load module, audio frequency output module and main control module are conventionally always in running order, and this causes the power consumption of smart card too large, and serviceable life is short.Therefore,, for this class smart card, how effectively reducing its power consumption is to be badly in need of at present the technical matters of solution.
Summary of the invention
The invention provides a kind of smartcard power consumption control method and smart card, solve existing by the too large technical matters of this class smartcard power consumption of audio signal transmission data.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A smartcard power consumption control method, described smart card is for entering after duty, and between Card Reader end, by sound signal, realizes the smart card of data interaction, and the method comprises: described smart card detects and whether receives wake-up signal under low power consumpting state; If receive, enter duty, otherwise keep low power consumpting state.
Further, described wake-up signal is sound signal.
Further, described wake-up signal is the sound signal of carrying tentation data.
Further, described wake-up signal is the sound signal of carrying predetermined binary data.
Further, described smart card detects the method for whether receiving wake-up signal under low power consumpting state, is specially: described smart card mates the sound signal of reception with default template, if coupling is consistent, testing result is for receiving wake-up signal.
A smart card, comprises the first audio frequency load module, audio frequency output module and main control module, also comprises signal detection module, and wherein, described signal detection module is for detection of whether receiving wake-up signal; Described main control module, the first audio frequency load module and audio frequency output module for receiving after described wake-up signal, enter duty for the testing result at described signal detection module, otherwise keep low power consumpting state.
Further, described smart card also comprises power module, described power module is for powering to described signal detection module, also for the testing result at described signal detection module for receiving after described wake-up signal, make it enter duty to described main control module, the first audio frequency load module and the power supply of audio frequency output module.
Further, described signal detection module comprises the second audio frequency load module and detection sub-module, and the second audio frequency load module is used for received audio signal, and exports detection sub-module to, and whether detection sub-module is wake-up signal for detection of this sound signal.
Further, described detection sub-module is matching module, and for this sound signal is mated with default template, if coupling is consistent, testing result is for receiving wake-up signal.
Further, described the second audio frequency load module and described the first audio frequency load module are same module.
A kind of smartcard power consumption control method provided by the invention and smart card, this smart card detects whether receive wake-up signal under low power consumpting state, if receive, enters duty, otherwise keeps low power consumpting state.Solved well in the market, power consumption that this class smart card by audio signal transmission data exists is too large, serviceable life short technical matters.
Accompanying drawing explanation
The process flow diagram of the smartcard power consumption control method that Fig. 1 provides for one embodiment of the invention;
The schematic diagram of the smart card that Fig. 2 provides for one embodiment of the invention;
The schematic diagram of the smart card that Fig. 3 provides for another embodiment of the present invention.
Embodiment
Main design of the present invention is: for passing through this class smart card of audio signal transmission data, make it under low power consumpting state, detect and whether receive wake-up signal, only have testing result for receiving after wake-up signal, just enter duty, otherwise keep low power consumpting state.Under the low power consumpting state of smart card of the present invention, only for detection of whether receiving that the module of wake-up signal is in running order, other modules are all in dormant state, and other modules are herein including, but not limited to audio frequency load module, audio frequency output module, main control module, display module, button etc.When this smart card is the smart card of built-in power module, under the low power consumpting state of smart card, power module is only given for detection of the module for power supply of whether receiving wake-up signal, and other modules are not all powered.
Below by embodiment, by reference to the accompanying drawings the present invention is described in further detail.
The process flow diagram of the smartcard power consumption control method that Fig. 1 provides for one embodiment of the invention, as shown in Figure 1, comprises following flow process:
S101, smart card detect whether receive wake-up signal under low power consumpting state, if testing result is for receiving wake-up signal, enter step S102, otherwise, enter step S103.
S102, smart card enter duty.Smart card enters after duty, and by sound signal, realizes data interaction between Card Reader end.
S103, smart card keep low power consumpting state, continue execution step S101.
In one embodiment, above-mentioned wake-up signal is sound signal.Be that smart card detects whether receive this sound signal under low power consumpting state, if testing result, for receiving, enters duty, otherwise keep low power consumpting state, continue execution step S101.In this embodiment, detect whether receive that the process of wake-up signal comprises following two kinds of modes: one, smart card is received arbitrary sound signal under low power consumpting state, its testing result all, for receiving wake-up signal, enters duty; Its two, after smart card is received arbitrary sound signal under low power consumpting state, continue judge that whether this sound signal effective, if effectively, its testing result all, for receiving wake-up signal, enters duty, otherwise keep low power consumpting state, continuation performs step S101.
Sound signal as wake-up signal can be to carry arbitrary data, for example, can carry the main communication data of smart card and Card Reader end, can be also to carry tentation data.In order to simplify detecting step, tentation data can be predetermined binary data, and this binary data can be comprised of N bit, N >=1, for example: the binary data that the bit of 8 complete 1 or full 0 forms.
If wake-up signal is the sound signal of carrying tentation data, after smart card is received this sound signal under low power consumpting state, also need to continue to judge that whether this sound signal is effective, for example the sound signal of reception can be mated with default template, if coupling is consistent, testing result, for receiving wake-up signal, enters duty, otherwise maintenance low power consumpting state, continues execution step S101.
The schematic diagram of the smart card that Fig. 2 provides for one embodiment of the invention, as shown in Figure 2, smart card 21, comprise the first audio frequency load module 211, audio frequency output module 212 and main control module 213, also comprise signal detection module 214, wherein, signal detection module 214 is for detection of whether receiving wake-up signal; Main control module 213, the first audio frequency load module 211 and audio frequency output module 212 for receiving after described wake-up signal, enter duty for the testing result at signal detection module 214, otherwise keep low power consumpting state.Main control module 213, the first audio frequency load module 211 and audio frequency output module 212 enter after duty, main control module 213 is for processing data, such as: communication protocol processing, data encrypting and deciphering, digital-to-analog conversion, analog to digital conversion etc., the first audio frequency load module 211 is for receiving the sound signal of carrying main communication data from Card Reader termination; Audio frequency output module 212 is for sending the sound signal of carrying main communication data to Card Reader end.
Concrete, the testing result of signal detection module 214 is for receiving after wake-up signal, can pass through respectively to main control module 213, the mode that the first audio frequency load module 211 and audio frequency output module 212 transmit control signal, make main control module 213, the first audio frequency load module 211 and audio frequency output module 212 enter duty, also can only to main control module 213, transmit control signal, main control module 213 enters after duty, the mode being transmitted control signal to the first audio frequency load module 211 and audio frequency output module 212 again by main control module 213, make the first audio frequency load module 211 and audio frequency output module 212 enter duty.
In this embodiment, the power supply mode of smart card 21 is not limited to and relies on built-in power module, can rely on external power source.
In one embodiment, signal detection module 214 and the first audio frequency load module 211 are integrated in same module.Or signal detection module 214, the first audio frequency load module 211 and audio frequency output module 212 are integrated in same module.
In one embodiment, signal detection module 214 further comprises the second audio frequency load module and detection sub-module, the second audio frequency load module is used for received audio signal, and exports detection sub-module to, and whether detection sub-module is wake-up signal for detection of this sound signal.Preferably, described the second audio frequency load module and the first audio frequency load module 211 are same module, the receiving function that is about to the sound signal of the first audio frequency load module 211 is integrated in signal detection module 214, owing to having lacked a module, can further reduce power consumption.
The schematic diagram of the smart card that Fig. 3 provides for another embodiment of the present invention, as shown in Figure 3, smart card 31, comprises the first audio frequency load module 311, audio frequency output module 312, main control module 313, signal detection module 314 and power module 315, can also comprise display module 316 and button 317.Display module 316 can show relevant data, and button 317 can be for input relevant configuration information, operational order etc.
In this embodiment, smart card 21 relies on 315 power supplies of built-in power module.Power module 315 is for giving signal detection module 314 power supplies, in the testing result of signal detection module 314, for receiving after wake-up signal, returns main control module 313, the first audio frequency load module 311 and audio frequency output module 312 and powers.Signal detection module 314 is for detection of whether receiving wake-up signal.Main control module 313, the first audio frequency load module 311 and audio frequency output module 312 for entering duty after obtaining power supply.In this embodiment, the principle of work of smart card 31 can be:
Under low power consumpting state, only have signal detection module 314 work, main control module 313 is in dormant state, and other modules are in off-position.Power module 315 gives signal detection module 314 power supplies, and keep to main control module 313 can power supply state, because main control module 313 is in dormant state, even if therefore power module 315 keep to main control module 313 can power supply state, but now to main control module 313 power supplies;
Whether signal detection module 314 detects receives wake-up signal, when testing result is when receiving wake-up signal, signal detection module 314 sends control signal to wake main control module 313 up to main control module 313, after main control module 313 is waken up, power module 315 recovers to main control module 313 power supplies, main control module 313 enters duty, main control module 313 is controlled power module 315 to the first audio frequency load module 311, audio frequency output module 312, display module 316, button 317 other modules such as grade power on, whole smart card 31 enters duty, until smart card 31 completes after data interaction with Card Reader end, main control module 313 self enters dormant state, and cut off the first audio frequency load module 311, audio frequency output module 312, the power supply of display module 316 and button 317, now smart card 31 enters low power consumpting state.
In one embodiment, signal detection module 314 and the first audio frequency load module 311 are integrated in same module.Or signal detection module 314, the first audio frequency load module 311 and audio frequency output module 312 are integrated in same module.
In one embodiment, signal detection module 314 further comprises the second audio frequency load module and detection sub-module, the second audio frequency load module is used for received audio signal, and exports detection sub-module to, and whether detection sub-module is wake-up signal for detection of this sound signal.Preferably, described the second audio frequency load module and the first audio frequency load module 311 are same module.
In the present invention, smart card is distinguished low power consumpting state and duty, under low power consumpting state, receives after wake-up signal, just enters duty, otherwise keeps low power consumpting state.With respect to existing, by for this class smart card of audio signal transmission data, effectively reduce power consumption, can extend the serviceable life of smart card.
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a smartcard power consumption control method, described smart card is for entering after duty, and between Card Reader end, by sound signal, realizes the smart card of data interaction, it is characterized in that, comprising:
Described smart card detects and whether receives wake-up signal under low power consumpting state;
If receive, enter duty, otherwise keep low power consumpting state.
2. smartcard power consumption control method as claimed in claim 1, is characterized in that, described wake-up signal is sound signal.
3. smartcard power consumption control method as claimed in claim 2, is characterized in that, described wake-up signal is the sound signal of carrying tentation data.
4. smartcard power consumption control method as claimed in claim 3, is characterized in that, described wake-up signal is the sound signal of carrying predetermined binary data.
5. the smartcard power consumption control method as described in claim 3 or 4, it is characterized in that, described smart card detects the method for whether receiving wake-up signal under low power consumpting state, be specially: described smart card mates the sound signal of reception with default template, if coupling is consistent, testing result is for receiving wake-up signal.
6. a smart card, comprises the first audio frequency load module, audio frequency output module and main control module, it is characterized in that, also comprises signal detection module, wherein,
Described signal detection module is for detection of whether receiving wake-up signal;
Described main control module, the first audio frequency load module and audio frequency output module for receiving after described wake-up signal, enter duty for the testing result at described signal detection module, otherwise keep low power consumpting state.
7. smart card as claimed in claim 6, it is characterized in that, described smart card also comprises power module, described power module is for powering to described signal detection module, also for the testing result at described signal detection module for receiving after described wake-up signal, make it enter duty to described main control module, the first audio frequency load module and the power supply of audio frequency output module.
8. the smart card as described in claim 6 or 7, it is characterized in that, described signal detection module comprises the second audio frequency load module and detection sub-module, the second audio frequency load module is for received audio signal, and export detection sub-module to, whether detection sub-module is wake-up signal for detection of this sound signal.
9. smart card as claimed in claim 8, is characterized in that, described detection sub-module is matching module, and for this sound signal is mated with default template, if coupling is consistent, testing result is for receiving wake-up signal.
10. smart card as claimed in claim 8, is characterized in that, described the second audio frequency load module and described the first audio frequency load module are same module.
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| CN201310098589.9A CN104077549A (en) | 2013-03-26 | 2013-03-26 | Intelligent card power consumption control method and intelligent card |
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Cited By (1)
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| CN101742619A (en) * | 2008-11-06 | 2010-06-16 | 国民技术股份有限公司 | Method for reducing stand-by power consumption of radio-frequency SIM (subscriber identity module) card by sequential trigger |
| CN102204231A (en) * | 2010-02-04 | 2011-09-28 | 华为终端有限公司 | Method and device for controlling working mode of data card and data card |
| CN102932567A (en) * | 2012-11-19 | 2013-02-13 | 东莞宇龙通信科技有限公司 | Terminal and audio processing method |
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| CN101742619A (en) * | 2008-11-06 | 2010-06-16 | 国民技术股份有限公司 | Method for reducing stand-by power consumption of radio-frequency SIM (subscriber identity module) card by sequential trigger |
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Application publication date: 20141001 |