CN102955975A - Radio frequency and capacitance hybrid antenna driving method - Google Patents
Radio frequency and capacitance hybrid antenna driving method Download PDFInfo
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- CN102955975A CN102955975A CN2011102547442A CN201110254744A CN102955975A CN 102955975 A CN102955975 A CN 102955975A CN 2011102547442 A CN2011102547442 A CN 2011102547442A CN 201110254744 A CN201110254744 A CN 201110254744A CN 102955975 A CN102955975 A CN 102955975A
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Abstract
The invention relates to a radio frequency and capacitance mixed antenna driving method, which comprises a control chip, an induction module and an antenna, wherein the induction module is provided with a capacitance type proximity sensor and an electromagnetic wave action circuit, the control chip is electrically connected with a preset external processing system, the processing flow during the operation is that the control chip firstly switches the capacitance type proximity sensor in the induction module to detect through the antenna, when an object is detected to enter the induction range, the control chip switches the electromagnetic wave action circuit in the induction module to induce through the antenna, the control chip receives an induction signal of the electromagnetic wave action circuit and then transmits the induction signal to the preset external processing system for working application, and the control chip switches the antenna into the antenna of the capacitance type proximity sensor in the induction module after the induction is finished, thereby reducing the operation time of the electromagnetic wave action circuit which consumes much power and generates high heat, and the two antennas share a single antenna, thereby achieving the advantages of saving power consumption, reducing temperature, reducing product cost and reducing occupied space.
Description
Technical field
The present invention provides a kind of radio frequency and electric capacity hybrid antenna driving method, espespecially utilize control chip to switch to allow condenser type closely connect inductor enter induction range by antenna detecting object first after, switching allows the Electromagnetic Field circuit respond to by the same antenna again, and then reach under identical result of use, can save the electric energy that expends and reduce the heat energy that produces.
Background technology
Along with the continuous research and development of wireless technology progress greatly, its Related product constantly comes out, and it is more convenient that various products not only allow people live, advantage in many uses such as on industry is used, also can offering convenience, save time, be antitheft, the utilization that wherein especially brings with less radio-frequency (RFID, Radio Frequency Identification) to be being seen everywhere, such as company, household's gate inhibition, stored value card etc., and in industry, then be that RFID is used on storekeeper.
It is that the antenna setting is a shape or sheet that now general storekeeper uses, utilize back-end circuit to connect antenna, and antenna is arranged on the place, gateway, and at kinds of goods RFID label (RFID tag) is set, when the staff directly carries or utilize go-cart carrying kinds of goods, just can utilize the electromagnetic wave of the RFID label receiving antenna emission on the kinds of goods, and behind the generation electric energy kinds of goods related data is back to antenna, antenna reception transfers to system by back-end circuit again behind kinds of goods related data signal, just can reach the effect of robotization statistics, storekeeper.
But because of the RFID wireless recognition technique, be back-end circuit by antenna in continuous emitting electromagnetic wave of cycle regular time, carry out Energy Transfer and signal-obtaining to the RFID label, because no matter whether there is card in scope, to need detecting, back-end circuit all can be passed through the continuous emitting electromagnetic wave of antenna, this mode of operation not only can produce persistent fever, the problem of high temperature, and the waste for electric power is also very huge, be with, relevant manufacturer just constantly researches and develops and improves for this mode, just produced the application infrared ray or the capacitive sensing mode is done general induction, and in sense kinds of goods near the time restart the RFID induction.
No matter but the induction antenna of ultrared light reaction district or capacitive sensing technology, all need additional loops and space required for the work of individual circuits, with the capacitive sensing technology, such design not only can improve by cost because of double antenna, also need larger space to settle double antenna, for such shortcoming, just there is manufacturer that the antenna of capacitive sensing and RFID induction is all designed and is the eddy current shape, and two Antenna Designs are interruption-like, allow thus single antenna just can respond to for electric capacity induction and RFID, but two antennas of adjacent shape can form interference mutually, if when an antenna uses, another antenna is turned off and ground connection, then another antenna will become barrier or barrier, allow the induction scope, deleterious, if turning off, another antenna is the suspension joint shape, then another antenna will become the radiation object of antenna in the use and assimilate, allow the field shape of another antenna change or to destroy with mating to produce, because changing, the coupling of another antenna and back-end circuit cause electromagnetic energy to change electromagnetic Efficiency Decreasing, just can expend again in the situation of identical electric energy, allow the intensity of signal, transmission ranges etc. are variation all.
Present wireless identification method in the use, still existent defect is to be improved, as:
Whether (one) this RFID induction mode has all continuous emitting electromagnetic waves of card in the reconnaissance range, cause that persistent fever is arranged, high temperature and the large shortcoming of power consumption.
When (two) RFID induction and infrared ray or capacitive sensing being set simultaneously, and when being provided with two antennas and connecting respectively by the two, not only allow cost improve, the space that takies is set also increases thereupon.
(3) if be adjacent the antenna setting of capacitive sensing and RFID induction or the interval shape, then two antennas can form interference mutually, if will be wherein an antenna turn off and ground connection or turn off and be the suspension joint shape, then can produce again barrier, intercept the scope, the deleterious that make induction, or shape produces change or destroys the situation that allows the electromagnetic wave conversion efficiency reduce with coupling, and has all problems of variation of the intensity of signal and transmission range that allow.
Above-mentioned existing wireless identification method, because having problems and shortcoming, this is the inventor and the target place of being engaged in this journey improvement that the dealer desires most ardently.
Summary of the invention
Therefore, the inventor is because above-mentioned shortcoming, be to collect related data, via in many ways assessing and considering, and to engage in the many years of experience of the industry accumulation, via constantly studying and revise, but begin to design that this kind power saving, cooling and tool are low-cost, the radio frequency of small size and the patent of invention of electric capacity hybrid antenna driving method.
Fundamental purpose of the present invention is to be, the condenser type of this control chip switching induction module closely connects inductor and enters in the induction range by antenna detecting object first, control chip switches again allows the Electromagnetic Field circuit respond to by antenna and object, Electromagnetic Field circuit many owing to power consumption and the high heat of generation only just operates when object is close, power consumption is less and produce the few condenser type of heat energy and closely connect inductor and then detect for a long time, just can be under identical result of use, have the advantage of power saving and cooling, and then reach the environmental protection purpose of carbon reduction.
Secondary objective of the present invention is to be that this Electromagnetic Field circuit and condenser type closely connect inductor and utilize switching mode to share single antenna, has not only reduced the antenna setup cost, and antenna arranges the also thereupon minimizing of the required space that takies.
Another object of the present invention is to be, this Electromagnetic Field circuit and condenser type closely connect inductor and share single antenna with switching mode, can avoid producing phase mutual interference, barrier, obstruct or change and damage field shape with the problem of mating, when allowing capacitive sensing or radio frequency induction, induction range, inductive effects and signal intensity can be not influenced and reduce or weaken, more do not need to adjust with coupling for field shape, reach thus the improving product result of use and reduce the purpose of keeping in repair.
Another purpose of the present invention is to be, this method only changes at control chip and induction module or handover module, if the client has set up traditional radio frequency form induction system, it only needs to do replacing and do not need to change whole members for back-end circuit, can reduce setup cost, allow the market acceptance promote.
Description of drawings
For reaching above-mentioned purpose and effect, the technology used in the present invention means and structure thereof, below in conjunction with accompanying drawing and preferred embodiment illustrate in detail as after, wherein:
Fig. 1 is the calcspar for preferred embodiment of the present invention.
Fig. 2 is the circuit diagram for preferred embodiment of the present invention.
Fig. 3 is the flow chart of steps for preferred embodiment of the present invention.
Fig. 4 is the calcspar for another embodiment of the present invention.
Fig. 5 is the circuit diagram for another embodiment of the present invention.
Fig. 6 is the calcspar for further embodiment of this invention.
Fig. 7 is the circuit diagram for further embodiment of this invention.
Embodiment
Seeing also Fig. 1, shown in Figure 2, is calcspar, circuit diagram for preferred embodiment of the present invention, finds out by knowing among the figure, and it is to comprise control chip 1, induction module 2 and antenna 3, wherein:
This control chip 1 is for being electrically connected at induction module 2, and induction module 2 is for being electrically connected at antenna 3 (also can be electromagnetic wire), induction module 2 closely connects inductor 21 and Electromagnetic Field circuit 22 for having the condenser type that is parallel way, its Electromagnetic Field circuit 22 can be radio frequency (RF, Radio Frequency) circuit, radio circuit can be radio frequency identification (RFID, Radio Frequency Identtification), wireless radio frequency circuit (Radio Frequency Circuit) or radio frequency applications (Radio Frequency Application) etc. are multi-form, and have the aerial coupling circuit 221 that can change antenna frequencies in the Electromagnetic Field circuit 22; In addition, control chip 1 is to be electrically connected with default external treatment system.
Seeing also shown in Fig. 1,2,3, is calcspar, circuit diagram and the flow chart of steps for preferred embodiment of the present invention, finds out by knowing among the figure, and the treatment scheme when the present invention operates is for comprising:
(100) process beginning.
(101) control chip 1 is switching to the antenna 3 that induction module 2 interior condenser types closely connect inductor 21 with antenna 3.
Whether (102) condenser type closely connects inductor 21 has object to enter in the induction range by antenna 3 detectings, if yes, carries out step (103), if NO, carries out step (101).
(103) after control chip 1 received the detection signal that condenser type closely connects inductor 21, control chip 1 switched antenna 3 became the antenna 3 of induction module 2 interior Electromagnetic Field circuit 22.
(104) Electromagnetic Field circuit 22 is responded to by antenna 3.
(105) control chip 1 receives the induced signal of Electromagnetic Field circuit 22, transmits induced signal to default external treatment system again and carries out job applications, carries out step (101) again.
Can learn by above-mentioned steps, after processing beginning, control chip 1 is switching to first induction module 2 interior condenser types and closely connects inductor 21 and respond to by antenna 3, required induction pole plate (sensing electrode) when allowing antenna 3 become condenser type closely to connect inductor 21 running, when detecting the object proximity induction range, condenser type closely connects inductor 21 transmission detection signals to control chip 1, control chip 1 is switching to Electromagnetic Field circuit 22 again and responds to by antenna 3 and the RFID label (RFIDtag) on the object, after control chip 1 receives the induced signal of Electromagnetic Field circuit 22, be transferred to again default external treatment system and carry out job applications, after finishing, control chip 1 is switching to condenser type again and closely connects inductor 21 and respond to by antenna 3, because when condenser type closely connects inductor 21 and responds to by antenna 3, the heat energy that not only power consumption is less and antenna 3 produces is also less, just can allow Electromagnetic Field circuit 22 only when object is close, just operate, and switching back condenser type after default external treatment system finishes the work and uses at once closely connects inductor 21 and operates, and then reach under identical result of use, can save the effect of electric energy and cooling, and then reach the environmental protection purpose of carbon reduction.
Above-mentioned external system may be computing machine, server or industrial computer etc., job applications then may be the works for the treatment of such as the product turnover is recorded, quantity in stock is calculated, whether need be replenished, also can be the inventory of sending product and sending product checks, if variant application of namely sending alert news, yet relevant external system and job applications are to be known technology, and this thin section consists of non-this case invention main points, hereby repeats no more.
In addition, because closely connecing inductor 21, Electromagnetic Field circuit 22 and condenser type utilize switching mode to share single antenna 3, the minimizing that takes up room that just can allow script need set up double antenna, phase mutual interference in the time of more can avoiding double antenna to operate simultaneously, the situation of assimilation, and antenna 3 can not change again with the coupling of circuit, then need just not have identical conversion electromagnetic wave efficient through adjusting, moreover, because the size of antenna 3 is directly proportional with the capacitive sensing distance, akin so that Electromagnetic Field circuit 22 and condenser type closely connect the induction range that inductor 21 responds to by antenna 3, so the coupling of circuit and antenna does not need again through design yet, adjust, because under the situation that existing radio frequency form induction system has used, original antenna can directly use, and only needs the rear circuit is changed, and then can reduce setup cost.
In addition, radio circuit also can act on wireless charging, when detecting the object proximity induction range, condenser type closely connects inductor 21 transmission detection signals to control chip 1, control chip 1 is switching to Electromagnetic Field circuit 22 again and carries out induction charging by the inductive coil on antenna 3 and the object, after finishing, control chip 1 is switching to condenser type again and closely connects inductor 21 and respond to by antenna 3.
See also Fig. 1,2,4,5,6, shown in 7, it is the calcspar for preferred embodiment of the present invention, circuit diagram, the calcspar of another embodiment, circuit diagram, the calcspar of another embodiment, circuit diagram, find out by knowing among the figure, this induction module 2 closely connects inductor 21 except having the Electromagnetic Field circuit 22 and the condenser type that are parallel way, and induction module 2 is connected with control chip 1 and antenna 3, by the TCM mode, just can allow control chip 1 control Electromagnetic Field circuit 22 and condenser type closely connect inductor 21 and switch, and the two can use single antenna 3 again together; In addition, induction module 2 also can be electrically connected by handover module 4 and control chip 1 and antenna 3, when induction module 2 has the first switching device 41, the first switching device 41 is and control chip 1, Electromagnetic Field circuit 22, condenser type closely connects inductor 21 and antenna 3 is electrically connected, when induction module 2 has the first switching device 41 and the second switching device 42, the first switching device 41 is for being electrically connected at the Electromagnetic Field circuit 22 of control chip 1 and induction module 2,42 of the second switching devices are electrically connected at control chip 1, Electromagnetic Field circuit 22 and the condenser type of induction module 2 closely connect inductor 21, no matter have the induction module 2 of single the first switching device 41 or have the induction module 2 of the first switching device 41 and the second switching device 42, all be to utilize control chip 1 signal transmission to allow the first switching device 41 and the second switching device 42 switch, so that closely connecing inductor 21 with Electromagnetic Field circuit 22 or condenser type, antenna 3 is electrically connected, its only tool switch Electromagnetic Field circuit 22 or condenser type and closely connect the function that inductor 21 allows single antenna 3 can make electromagnetic wave or capacitive sensing and get final product, non-so namely limit to claim of the present invention, as utilize other modification and equivalent structure to change, all should in like manner be contained in the claim scope of the present invention.
The radio frequency of the invention described above and electric capacity hybrid antenna driving method when reality is used, for having following advantage, as:
(1) the Electromagnetic Field circuit 22 of this control chip 1 control induction module 2 and condenser type closely connect inductor 21 and switch, allowing condenser type closely connect inductor 21 detects by antenna 3 first, treat that object enters in the induction range, switching allows Electromagnetic Field circuit 22 respond to by antenna 3 again, allow thus power consumption less and produce the few condenser type of heat energy and closely connect inductor 21 and detect for a long time, and Electromagnetic Field circuit 22 only just operates when object is close, and then reach under identical result of use, have the advantage of power saving and cooling.
(2) because Electromagnetic Field circuit 22 is switched in control chip 1 control and condenser type closely connects inductor 21, allow single antenna 3 just can not only reduce cost of products for the two, and the also thereupon minimizing of the required space that takies is set.
(3) because closely connecing inductor 21, Electromagnetic Field circuit 22 and condenser type use in turn single antenna 3 for switching, can avoid phase mutual interference, barrier, obstruct or change and damage field shape with the situation of coupling, just have good induction range, inductive effects, signal intensity in the time of can allowing capacitive sensing or radio frequency induction, reach thus and under identical result of use, reduce the purpose of adjusting, keeping in repair.
(4) set up in the situation of use at existing radio frequency form induction system, only needed to be replaced by control chip 1 of the present invention and induction module 2 or handover module 4 for back-end circuit, owing to do not need to change whole members, and then can reduce setup cost.
Therefore; the present invention is mainly for radio frequency and electric capacity hybrid antenna driving method; use first antenna 3 to detect and can utilize condenser type that control chip 1 switches induction module 2 closely to connect inductor 21; detecting object when entering in the induction range; control chip 1 switches Electromagnetic Field circuit 22 again and uses antenna 3 to respond to; and after the utilization of finishing the work; switch to again condenser type and closely connect inductor 21 use antennas 3; produce heat energy as main key protection point to reduce power consumption and to reduce; only; the above only is preferred embodiment of the present invention; non-so namely limit to claim of the present invention; therefore the simple and easy modification that every utilization instructions of the present invention and accompanying drawing content are done and equivalent structure change, and all should in like manner be contained in the claim scope of the present invention.
In sum, the radio frequency that the present invention is above-mentioned and electric capacity hybrid antenna driving method are when enforcement, operation, for really reaching its effect and purpose, therefore the present invention really is the invention of a practicality excellence, for meeting the application condition of patent of invention, therefore file an application in accordance with the law.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102547442A CN102955975A (en) | 2011-08-31 | 2011-08-31 | Radio frequency and capacitance hybrid antenna driving method |
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| CN2011102547442A CN102955975A (en) | 2011-08-31 | 2011-08-31 | Radio frequency and capacitance hybrid antenna driving method |
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| CN102955975A true CN102955975A (en) | 2013-03-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167591A (en) * | 2013-05-17 | 2014-11-26 | 宏碁股份有限公司 | electronic device |
| CN110798766A (en) * | 2018-08-02 | 2020-02-14 | 禾伸堂企业股份有限公司 | Bluetooth earphone combining antenna and touch sensing piece |
| CN114339509A (en) * | 2020-09-30 | 2022-04-12 | 南京矽力微电子(香港)有限公司 | Wireless Headphones |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090251291A1 (en) * | 2008-04-01 | 2009-10-08 | Assa Abloy Ab | Switched capacitance method for the detection of, and subsequent communication with a wireless transponder device using a single antenna |
| CN101930528A (en) * | 2009-03-10 | 2010-12-29 | Ls产电株式会社 | Rfid system using circular polarized antenna |
-
2011
- 2011-08-31 CN CN2011102547442A patent/CN102955975A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090251291A1 (en) * | 2008-04-01 | 2009-10-08 | Assa Abloy Ab | Switched capacitance method for the detection of, and subsequent communication with a wireless transponder device using a single antenna |
| CN101930528A (en) * | 2009-03-10 | 2010-12-29 | Ls产电株式会社 | Rfid system using circular polarized antenna |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167591A (en) * | 2013-05-17 | 2014-11-26 | 宏碁股份有限公司 | electronic device |
| CN110798766A (en) * | 2018-08-02 | 2020-02-14 | 禾伸堂企业股份有限公司 | Bluetooth earphone combining antenna and touch sensing piece |
| CN110798766B (en) * | 2018-08-02 | 2021-08-13 | 禾伸堂企业股份有限公司 | Bluetooth headset with antenna and touch sensor |
| CN114339509A (en) * | 2020-09-30 | 2022-04-12 | 南京矽力微电子(香港)有限公司 | Wireless Headphones |
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Application publication date: 20130306 |