CN104103269A - Audio identification electronic tag - Google Patents
Audio identification electronic tag Download PDFInfo
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- CN104103269A CN104103269A CN201410308784.4A CN201410308784A CN104103269A CN 104103269 A CN104103269 A CN 104103269A CN 201410308784 A CN201410308784 A CN 201410308784A CN 104103269 A CN104103269 A CN 104103269A
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- electronic tag
- loudspeaker
- driving circuit
- audio identification
- identification electronic
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Abstract
The invention relates to an audio identification electronic tag and belongs to the wireless communication field. The electronic tag is provided with a unique serial number; the electronic tag comprises a loudspeaker used for emitting audio signals, a driving circuit which is connected with the loudspeaker and is used for driving the loudspeaker, and a microprocessor which is connected with the driving circuit and is used for encoding the serial number into a digital signal, wherein the loudspeaker is driven through the driving circuit, and the loudspeaker converts the digital signal into an audio signal and outputs the audio signal. The microprocessor converts the serial number into the digital signal, and the loudspeaker outputs the audio signal through the driving of the driving circuit, and therefore, a mobile phone or a mobile computer or the like, without addition of hardware required, can read the content of the electronic tag, and the outputted audio signal is in a frequency range which is not sensitive and imperceptible to the ears of human, and therefore, interference on the auditory sense of human when the data of the tag are read can be avoided.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of audio identification electronic tag.
Background technology
Electronic tag is commonly radio-frequency (RF) tag (RFID, Audio Frequence IDentification), is widely used in all trades and professions such as logistics, ticketing service and room entry/exit management, is mainly used in identification, follows the tracks of and location, needs professional device recognition radio frequency label.Although present smart mobile phone has the Domestic News that surfs the web whenever and wherever possible, the function of dialing visual telephone, watching mobile TV and mobile phone shopping, does not have the interface that directly reads RFID electronic tag, cannot Direct Recognition electronic tag.
Summary of the invention
The problems referred to above that exist for existing a kind of audio identification electronic tag, now provide a kind of audio identification electronic tag to realize mobile phone and without interpolation hardware, get final product the object of reading electronic labels.
An audio identification electronic tag, described electronic tag has unique sequence number, and described electronic tag comprises:
Loudspeaker, in order to audio signals;
Driving circuit, connects and states loudspeaker, for driving described loudspeaker;
Microprocessor, connects described driving circuit, in order to be digital signal by described serial number codes, by described driving circuit, drives described loudspeaker, and described loudspeaker is converted to sound signal output audio signal by described digital signal.
Preferably, the frequency range of described loudspeaker output audio signal is: 18KHz～22KHz.
Preferably, described driving circuit adopts the output of transistor bridge-type.
Preferably, described driving circuit is in order to control the volume of the described sound signal of output.
Preferably, described microprocessor adopts 8 single-chip microcomputers.
Preferably, also comprise:
Power supply, connects respectively described driving circuit and described microprocessor, with thinking described driving circuit and described microprocessor power supply.
Preferably, described power supply is direct supply.
Preferably, described power supply is rechargeable lithium ion battery.
Preferably, described microprocessor is provided with on-chip memory, in order to store described sequence number.
The beneficial effect of technique scheme:
Microprocessor is converted to digital signal by sequence number, by driving circuit, drive loudspeaker output audio signal, make the equipment such as mobile phone or removable computer without interpolation hardware, get final product the content of reading electronic labels, and the sound signal of output is that people's ear is insensitive, the frequency range that is difficult for discovering, thereby can not cause interference to people's the sense of hearing when reading tag data.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of embodiment of electronic tag of the present invention.
In accompanying drawing: 1. microprocessor; 2. driving circuit; 3. loudspeaker; 4. power supply.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belongs to the scope of protection of the invention.
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the present invention can combine mutually.
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as limiting to the invention.
As shown in Figure 1, a kind of audio identification electronic tag, electronic tag has unique sequence number, and electronic tag comprises:
Loudspeaker 3, in order to audio signals;
Driving circuit 2, connects and states loudspeaker 3, for driving loudspeaker 3;
Microprocessor 1, connects driving circuit 2, in order to be digital signal by serial number codes, by driving circuit 2, drives loudspeaker 3, and loudspeaker 3 is converted to sound signal output audio signal by described digital signal.
In the present embodiment, microprocessor 1 is converted in order Digital Square-Wave by label data and drives loudspeaker 3 output audio signals by driving circuit 2, and the coverage of audio signal transmission can reach 10 meters.
In a preferred embodiment, the frequency range of loudspeaker 3 output audio signals is: 18KHz～22KHz, the centre frequency of this audiorange is 20KHz, the sense of hearing of people's ear is insensitive in this scope, be difficult for discovering, avoid the mankind's the sense of hearing to cause interference, and reached the object that label data can transmit smoothly.
In a preferred embodiment, driving circuit 2 adopts the output of transistor bridge-types, and driving circuit 2 provides energy for loudspeaker 3 output audio signals, and the output of transistor bridge-type can guarantee that output audio signal is undistorted.
In a preferred embodiment, driving circuit 2 is in order to control the volume of output audio signal.
In a preferred embodiment, microprocessor 1 adopts 8 single-chip microcomputers, and 8 single-chip microcomputers can be 51 series monolithics, and single-chip microcomputer has that volume is little, integrated level is high, good reliability, the advantage of low-power consumption.
In a preferred embodiment, also comprise: power supply 4; Power supply 4 connects respectively driving circuit 2 and microprocessor 1, with thinking driving circuit 2 and microprocessor 1 power supply.
In a preferred embodiment, power supply 4 is direct supply.In a kind of further embodiment, power supply 4 can adopt 3.3V direct supply or other low-tension supplies.
In a preferred embodiment, power supply 4 is rechargeable lithium ion battery, and electronic tag can be reused.
In a preferred embodiment, microprocessor 1 is provided with on-chip memory, in order to store described sequence number.
The foregoing is only preferred embodiment of the present invention; not thereby limit embodiments of the present invention and protection domain; to those skilled in the art; should recognize that being equal to that all utilizations instructions of the present invention and diagramatic content done replace and the resulting scheme of apparent variation, all should be included in protection scope of the present invention.
Claims (9)
1. an audio identification electronic tag, is characterized in that, described electronic tag has unique sequence number, and described electronic tag comprises:
Loudspeaker, in order to audio signals;
Driving circuit, connects and states loudspeaker, for driving described loudspeaker;
Microprocessor, connects described driving circuit, in order to be digital signal by described serial number codes, by described driving circuit, drives described loudspeaker, and described loudspeaker is converted to sound signal output audio signal by described digital signal.
2. audio identification electronic tag as claimed in claim 1, is characterized in that, the frequency range of described loudspeaker output audio signal is: 18KHz～22KHz.
3. audio identification electronic tag as claimed in claim 1, is characterized in that, described driving circuit adopts the output of transistor bridge-type.
4. audio identification electronic tag as claimed in claim 1, is characterized in that, described driving circuit is in order to control the volume of the described sound signal of output.
5. audio identification electronic tag as claimed in claim 1, is characterized in that, described microprocessor adopts 8 single-chip microcomputers.
6. audio identification electronic tag as claimed in claim 1, is characterized in that, also comprises:
Power supply, connects respectively described driving circuit and described microprocessor, with thinking described driving circuit and described microprocessor power supply.
7. audio identification electronic tag as claimed in claim 6, is characterized in that, described power supply is direct supply.
8. audio identification electronic tag as claimed in claim 6, is characterized in that, described power supply is rechargeable lithium ion battery.
9. audio identification electronic tag as claimed in claim 1, is characterized in that, described microprocessor is provided with on-chip memory, in order to store described sequence number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410308784.4A CN104103269A (en) | 2014-06-30 | 2014-06-30 | Audio identification electronic tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410308784.4A CN104103269A (en) | 2014-06-30 | 2014-06-30 | Audio identification electronic tag |
Publications (1)
| Publication Number | Publication Date |
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| CN104103269A true CN104103269A (en) | 2014-10-15 |
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| CN201410308784.4A Pending CN104103269A (en) | 2014-06-30 | 2014-06-30 | Audio identification electronic tag |
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Application publication date: 20141015 |
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