CN104218689A - Visual card power management device and method - Google Patents
Visual card power management device and method Download PDFInfo
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- CN104218689A CN104218689A CN201410455226.0A CN201410455226A CN104218689A CN 104218689 A CN104218689 A CN 104218689A CN 201410455226 A CN201410455226 A CN 201410455226A CN 104218689 A CN104218689 A CN 104218689A
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Abstract
The invention relates to a visual card power management device and method. A visual card comprises a dual-interface card chip, a display chip, a first coil, a second coil and a battery, the second coil communicates with the dual-interface card chip, the visual card power management device comprises a first power supply module and a second power supply module, the first power supply module connected with the first coil is used for receiving electric energy generated by the first coil and providing the electric energy to the dual-interface card chip, and the second power supply module is used for selecting surplus electrical energy or the battery to supply power to the display chip according to the surplus electrical energy of the electric energy except for the electric energy provided to the dual-interface card chip. By the device and method, normal operation of the dual-interface card chip can be guaranteed, and meanwhile electric energy is distributed to the display chip dynamically.
Description
Technical field
The present invention relates to field of intelligent cards, particularly relate to a kind of visible card electric power controller and method.
Background technology
In Unionpay company standard Q/CUP 047.8-2013, propose visible card specification, code requirement visible card is double-interface card, has Presentation Function, can have internal battery.As shown in Figure 1, be the functional schematic of visible card in prior art, visible card comprises two modules: double-interface card module and display module.Inner structure is as follows: as shown in Figure 2, be the physical structure schematic diagram of visible card inside, wherein, is connected between double-interface card chip and display chip by interface standard.
The supply power mode of visible card is as follows: as shown in Figure 3, for the circuit diagram of visible card inside in prior art, in non-contact application, mobile phone or card reader send carrier wave, such as: the carrier wave of 13.56MHz, the double-interface card chip of visible card inside obtains electric energy by coil from carrier wave, carries out work; Display chip uses powered battery.In this technical scheme, display chip can only use battery, if running down of battery, then the Presentation Function of visible card cannot use completely.In addition, if there is no mobile phone or card reader, the while that display chip making battery-powered, if desired double-interface card chip work, then double-interface card chip also can only use powered battery, and now, display chip controls double-interface card chip by internal circuit and obtain electric energy from battery.In this case, the function of display chip and double-interface card chip all will be subject to the impact of battery electric quantity.
As shown in Figure 4, for the another kind of circuit diagram of visible card inside in prior art, this circuit comprises two coils, and coil 1 is for power supply, and coil 2 is for communication and power supply, and add a rectification circuit, the electric energy obtained from coil 1 is directly supplied display chip by rectification circuit, and therefore, display chip can obtain electric energy from battery, also directly electric energy can be obtained from coil 1, and not by the impact of double-interface card chip.If but display chip directly obtains electric energy from coil 1 carries out work, the electricity shortage of double-interface card chip can be caused, this is because in arbitrary electromagnetic field, any position, visible card is fixing from the electric energy that coil obtains, if display chip directly obtains electric energy from coil 1, then double-interface card chip can electric energy just have to reduce, so such occupation mode often has a strong impact on the normal work of double-interface card chip.
Summary of the invention
The invention provides a kind of visible card electric power controller and method, in order to realize while guarantee double-interface card chip normally works, dynamically for display chip distributes electric energy.
The invention provides a kind of visible card electric power controller, described visible card comprises double-interface card chip, display chip, the first coil, the second coil and battery, and described second coil communicates with described double-interface card chip, and described device comprises:
First supply module, is connected with described first coil, for receiving the electric energy that described first coil produces, described electric energy is supplied to described double-interface card chip;
Second supply module, for the situation according to the dump energy of described electric energy except being supplied to the electric energy of described double-interface card chip, selects described dump energy or described battery to be that described display chip is powered.
The present invention also provides a kind of visible card, comprises double-interface card chip, display chip, the first coil, the second coil and battery, and described second coil communicates with described double-interface card chip, also comprises aforesaid visible card electric power controller.
The present invention also provides a kind of visible card method for managing power supply, and described visible card comprises double-interface card chip, display chip, the first coil, the second coil and battery, and described second coil communicates with described double-interface card chip, and described method comprises:
Receive the electric energy that described first coil produces, described electric energy is supplied to described double-interface card chip;
According to the situation of the dump energy of described electric energy except being supplied to the electric energy of described double-interface card chip, described dump energy or described battery is selected to be that described display chip is powered.
It is that double-interface card chip is powered that the present invention produces electric energy by two coils, and dump energy is used for power to display chip, no longer occur that display chip and double-interface card chip fight for the situation of electric energy, make double-interface card chip to obtain sufficient electrical energy, it also avoid the situation generation that display chip cannot use because of battery-depletion.Therefore, achieve dynamically for display chip distributes electric energy while double-interface card chip normally works, and then the normal use of visible card various functions can be realized.
Accompanying drawing explanation
Fig. 1 is the functional schematic of visible card in prior art;
Fig. 2 is the physical structure schematic diagram of visible card inside;
Fig. 3 is the circuit diagram of visible card inside in prior art;
Fig. 4 is the another kind of circuit diagram of visible card inside in prior art;
Fig. 5 is the structural representation of visible card electric power controller embodiment of the present invention;
Fig. 6 is the schematic flow sheet of visible card method for managing power supply embodiment of the present invention.
Embodiment
Below in conjunction with specification drawings and specific embodiments, the invention will be further described.
As shown in Figure 5, for the structural representation of visible card electric power controller embodiment of the present invention, this device comprises: double-interface card chip 52, display chip 56, first supply module 53, second supply module 54, first coil 51, second coil 57 and battery 55, double-interface card chip 52 is connected with coil 57, first supply module 53 is connected with the first coil 51, double-interface card chip 52, second supply module 54 is connected with the first supply module 53, battery 55 is connected with the second management circuit 54, and display chip 56 is connected with the first supply module 53, electric power management circuit 54.
In the present embodiment, the first coil 51 is for generation of electric energy, and the second coil 57 communicates with double-interface card chip 52, and alternatively, the second coil 57 also can be powered for double-interface card chip 52 when not communicating; The electric energy that first supply module 53 produces for receiving the first coil 51, is supplied to double-interface card chip 52 by this electric energy; Second supply module 54, for the situation according to the dump energy of electric energy except being supplied to the electric energy of double-interface card chip 52 in above-mentioned first supply module 51, selects dump energy or battery 55 to power for display chip 56.
The course of work of the present embodiment is as follows: as shown in Figure 6, is the schematic flow sheet of visible card method for managing power supply embodiment of the present invention, specifically can comprises the steps:
Step 61, the first supply module 53 receive the electric energy that the first coil 51 produces, and this electric energy is supplied to double-interface card chip 52;
Step 62, the second supply module 54, according to the situation of the dump energy of the electric energy in the first supply module 53 except being supplied to the electric energy of double-interface card chip 52, select dump energy or battery 55 to power for display chip 56.
In the present embodiment, first the electric energy that the first coil 51 provides is supplied double-interface card chip 52 by the first supply module 53, and making has sufficient power consumption in double-interface card chip 52 course of work, ensure that the normal work of double-interface card chip 52.For display chip 56, second supply module 54 is supplied to the situation of the rear dump energy of double-interface card chip 52 according to the electric energy that the first coil 51 produces, this dump energy or battery 55 is selected to power for display chip 56, avoid the situation that display chip 56 uses battery 55, achieve and dynamically distribute electric energy for display chip 56, avoid display chip 56 simultaneously and directly obtain electric energy from coil and cause the situation of double-interface card chip 52 electricity shortage to occur.
Alternatively, the second supply module 54 can adopt a kind of mode in the following two kinds mode to decide the electricity of the electric energy being supplied to two interface card chip 52:
First kind of way: schematic diagram shown in Figure 5 again, first supply module 53 can comprise message reception units 531 and the first power supply unit 532, first power supply unit 532 is connected with message reception units 531, and the first power supply unit 532 is connected between the first coil 51 and the second supply module 54; Message reception units 531 is connected with display chip 56.Wherein, the power request message that message reception units 531 sends for receiving display chip 56, this power request message comprises the power consumption of double-interface card chip 52; The electric energy that first power supply unit 532 produces for receiving the first coil 51, according to above-mentioned power request message, is supplied to double-interface card chip 52 by the electric energy of power consumption.
The second way: the electricity that the first supply module 53 is supplied to double-interface card chip 52 is the maximum power consumption of double-interface card chip 52, can ensure there is sufficient electric energy in double-interface card chip 52 course of work like this.
Alternatively, in the present embodiment, the second supply module 54, for dump energy and the first predetermined threshold being compared, according to comparative result, selects dump energy or battery 55 to power for display chip 56.Such as: when dump energy is greater than the first predetermined threshold, the second supply module 54 can select dump energy to be that display chip 56 is powered; When dump energy is less than or equal to the first predetermined threshold, the second supply module 54 can select battery 55 to power for display chip 56.
Alternatively, in the present embodiment, battery 55 can be rechargeable battery, and the second supply module 54 can also according to the situation of dump energy, for battery 55 charges, to make full use of the electric energy that coil produces.Such as: dump energy and the second predetermined threshold compare by the second supply module 54, determine whether as battery 55 charges according to comparative result, particularly, when dump energy is fully high, such as: when being greater than the second predetermined threshold, the second supply module 54 is defined as battery 55 and charges.
The present invention also provides a kind of embodiment of visible card, this visible card can comprise double-interface card chip 52, display chip 56, first coil 51, second coil 57 and battery 55, also comprise the arbitrary unit in above-mentioned visible card electric power controller embodiment and module, do not repeat them here.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not depart from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a visible card electric power controller, is characterized in that, described visible card comprises double-interface card chip, display chip, the first coil, the second coil and battery, and described second coil communicates with described double-interface card chip, and described device comprises:
First supply module, is connected with described first coil, for receiving the electric energy that described first coil produces, described electric energy is supplied to described double-interface card chip;
Second supply module, for the situation according to the dump energy of described electric energy except being supplied to the electric energy of described double-interface card chip, selects described dump energy or described battery to be that described display chip is powered.
2. device according to claim 1, is characterized in that, described first supply module comprises:
Message reception units, for receiving the power request message that described display chip sends, described power request message comprises the power consumption of described double-interface card chip;
First power supply unit, for receiving the electric energy that described first coil produces, according to described power request message, is supplied to described pair of interface chip by the electric energy of described power consumption.
3. device according to claim 1, is characterized in that, the electricity that described first supply module is supplied to described double-interface card chip is the maximum power consumption of described double-interface card chip.
4. device according to claim 1, is characterized in that, described second supply module is used for described dump energy and the first predetermined threshold to compare, and according to comparative result, selects described dump energy or described battery to be that described display chip is powered.
5. device according to claim 1, is characterized in that, described battery is rechargeable battery, described second supply module also for the situation according to described dump energy, for described battery charges.
6. a visible card, comprises double-interface card chip, display chip, the first coil, the second coil and battery, and described second coil communicates with described double-interface card chip, it is characterized in that, also comprises the arbitrary described visible card electric power controller of claim 1-5.
7. a visible card method for managing power supply, is characterized in that, described visible card comprises double-interface card chip, display chip, the first coil, the second coil and battery, and described second coil communicates with described double-interface card chip, and described method comprises:
Receive the electric energy that described first coil produces, described electric energy is supplied to described double-interface card chip;
According to the situation of the dump energy of described electric energy except being supplied to the electric energy of described double-interface card chip, described dump energy or described battery is selected to be that described display chip is powered.
8. method according to claim 7, is characterized in that, describedly described electric energy is supplied to described double-interface card chip is specially:
Receive the power request message that described display chip sends, described power request message comprises the power consumption of described double-interface card chip;
Receive the electric energy that described first coil produces, according to described power request message, the electric energy of described power consumption is supplied to described double-interface card chip.
9. method according to claim 7, is characterized in that, the electricity being supplied to described double-interface card chip is the maximum power consumption of described double-interface card chip.
10. device according to claim 7, is characterized in that, described battery is rechargeable battery, and described method also comprises:
According to the situation of described dump energy, for described battery charges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410455226.0A CN104218689A (en) | 2014-09-09 | 2014-09-09 | Visual card power management device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410455226.0A CN104218689A (en) | 2014-09-09 | 2014-09-09 | Visual card power management device and method |
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| CN104218689A true CN104218689A (en) | 2014-12-17 |
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| CN201410455226.0A Pending CN104218689A (en) | 2014-09-09 | 2014-09-09 | Visual card power management device and method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201111113Y (en) * | 2007-11-19 | 2008-09-03 | 北京飞天诚信科技有限公司 | Multifunctional non-contact card additional device |
| CN101345793A (en) * | 2008-08-29 | 2009-01-14 | 中兴通讯股份有限公司 | Near-field communication terminal and method for implementing application of non-contact card by power-failure |
| CN102542323A (en) * | 2010-11-16 | 2012-07-04 | 北京中电华大电子设计有限责任公司 | Multifunctional visual intelligent card |
| US20120318863A1 (en) * | 2011-06-15 | 2012-12-20 | Kim Moon J | Light-powered smart card for on-line transaction processing |
| CN204118865U (en) * | 2014-09-09 | 2015-01-21 | 昆腾微电子股份有限公司 | Visible card, visible card electric power controller |
-
2014
- 2014-09-09 CN CN201410455226.0A patent/CN104218689A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201111113Y (en) * | 2007-11-19 | 2008-09-03 | 北京飞天诚信科技有限公司 | Multifunctional non-contact card additional device |
| CN101345793A (en) * | 2008-08-29 | 2009-01-14 | 中兴通讯股份有限公司 | Near-field communication terminal and method for implementing application of non-contact card by power-failure |
| CN102542323A (en) * | 2010-11-16 | 2012-07-04 | 北京中电华大电子设计有限责任公司 | Multifunctional visual intelligent card |
| US20120318863A1 (en) * | 2011-06-15 | 2012-12-20 | Kim Moon J | Light-powered smart card for on-line transaction processing |
| CN204118865U (en) * | 2014-09-09 | 2015-01-21 | 昆腾微电子股份有限公司 | Visible card, visible card electric power controller |
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Application publication date: 20141217 |
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