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A composite smart card for vehicle charging and its power supply management method

A technology for smart cards and vehicles, applied in the field of composite cards, can solve the problems of high cost, complex card structure, mutual interference of antennas, etc., and achieve the effect of avoiding service life, optimizing the configuration process, and avoiding low power

Active Publication Date: 2021-03-30
SHENZHEN GENVICT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the power supply schemes for the existing composite cards mainly include: (1) The one-time card scheme of single antenna + button battery, which makes the card simple in structure and low in cost, but also has the defects of short life and non-reusable use ; (2) two or more antennas + lithium battery solar charging scheme, this scheme makes the structure of the card complex, high cost and there is a problem of mutual interference of multiple antennas; (3) two or more Antenna + wireless charging solution, this solution makes the antenna structure complex, high radio frequency power, fast battery power consumption, and there are problems of short wireless direct charging life and high failure rate without low power protection

Method used

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  • A composite smart card for vehicle charging and its power supply management method
  • A composite smart card for vehicle charging and its power supply management method
  • A composite smart card for vehicle charging and its power supply management method

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Embodiment 1

[0038] Embodiment 1. The present invention discloses a composite smart card for vehicle charging. Please refer to figure 2 with image 3 . The composite smart card includes: a composite antenna unit 11 , a magnetic field detection unit 13 , a wireless charging unit 15 , an energy storage unit 19 and a control unit 17 . Instructions are given below.

[0039]The compound antenna unit 11 is used for inducing a magnetic field, and it may include a high frequency antenna 111 and a low frequency antenna 112 . The high-frequency antenna 111 is used for inducing the field strength of the high-frequency magnetic field for high-frequency communication, and the low-frequency antenna 112 is used for inductively coupling electric energy of the low-frequency magnetic field. The magnetic field here is formed by the radio frequency signal that RF card reader A1 (ie radio frequency card reader) sends, and this RF card reader A1 is prior art, generally comprises low frequency transmitting m...

Embodiment 2

[0048] Embodiment 2. Correspondingly, this application also proposes a power supply management method for a composite smart card, such as Figure 4 As shown, it includes steps S21-S23.

[0049] S21, induction magnetic field. When the composite smart card A0 is close to the RF card reader A1, the composite antenna unit 11 senses the magnetic field, the high-frequency antenna 111 senses the high-frequency magnetic field formed by the radio frequency signal of the high-frequency transmitting module A12, and the low-frequency antenna 112 senses the low-frequency transmitting module A11. A low-frequency magnetic field formed by radio frequency signals.

[0050] S22. Obtain a detection signal about field strength. The field strength detection unit 13 obtains the induced electrical signal from the high-frequency antenna 111, and the strong high-frequency magnetic field detection unit 131 receives the induced electrical signal and triggers the generation of The strong high-frequenc...

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Abstract

The invention discloses a compound smart card for vehicle charging and a power supply management method thereof. according to the compound smart card, a magnetic field is sensed through a compound antenna unit, field intensity and electric energy of the magnetic field are respectively obtained by means of a magnetic field detection unit and a wireless charging unit, and a charging / discharging state of an energy storage unit is controlled by a control unit an obtained detection signal, so that the compound smart card has a field intensity detection ability, the recognition rate of the compoundsmart card during card reading is improved and the card reading leakage problem caused by low power or a card reading blind area of card reader is avoided. According to the power supply management method, when the compound intelligent card senses enough field intensity, the control unit is awakened to work, and when the energy storage unit is judged to have low electric energy, the energy storageunit is wirelessly charged, so that the compound smart card can achieve a steady power supply state, the electric energy configuration process is optimized, the service life of the energy storage unitis prevented from shortened due to continuous charging / discharging, and then conditions are provided for effective high-frequency communication.

Description

technical field [0001] The invention relates to a composite card, in particular to a composite smart card for vehicle charging and a power supply processing method thereof. Background technique [0002] Composite card is currently one of the smart induction cards with the highest technical content and the most complete functions in China. Its main feature is "one card with multiple functions", which not only has the advantages of magnetic stripe cards, but also has the characteristics of IC cards. It adopts contact / non-contact design, and can directly deduct money through radio frequency mode, which is safe, convenient, wear-resistant and fast. At present, the composite card is a unique way of data storage and flow, which combines low cost, mobility, wide distribution, high security, and rapid expansion. figure 1 , Composite cards (Card) are mostly used in parking lots, highway toll stations, commercial access control and other scenarios, and play an irreplaceable role in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/06G07B15/06
CPCG06K19/06196G07B15/063
Inventor 燕英伟庞绍铭刘宇熊朝东
Owner SHENZHEN GENVICT TECH