CN203180911U - Ultrasonic receiver for ultrasonic payment - Google Patents

Ultrasonic receiver for ultrasonic payment Download PDF

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Publication number
CN203180911U
CN203180911U CN 201320181370 CN201320181370U CN203180911U CN 203180911 U CN203180911 U CN 203180911U CN 201320181370 CN201320181370 CN 201320181370 CN 201320181370 U CN201320181370 U CN 201320181370U CN 203180911 U CN203180911 U CN 203180911U
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CN
China
Prior art keywords
circuit
input
output
ultrasonic
potentiometer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201320181370
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Chinese (zh)
Inventor
唐皓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDU MOBO NETWORK TECHNOLOGY Co Ltd
Original Assignee
CHENGDU MOBO NETWORK TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHENGDU MOBO NETWORK TECHNOLOGY Co Ltd filed Critical CHENGDU MOBO NETWORK TECHNOLOGY Co Ltd
Priority to CN 201320181370 priority Critical patent/CN203180911U/en
Application granted granted Critical
Publication of CN203180911U publication Critical patent/CN203180911U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an ultrasonic receiver for ultrasonic payment, which comprises an ultrasonic reception circuit, a preposition amplification circuit, a band-pass filtering circuit, an automatic gain control circuit, an absolute value changing circuit, a detector circuit, a zero cross detection circuit and a singlechip. The output terminal of the ultrasonic reception circuit is connected to the input terminal of the preposition amplification circuit; the output terminal of the preposition amplification circuit is connected to the input terminal of the band-pass filtering circuit; the output terminal of the band-pass filtering circuit is connected to the input terminal of the automatic gain control circuit; the output terminal of the automatic gain control circuit is connected to the input terminal of the absolute value changing circuit; the output terminal of the absolute value changing circuit is connected to the input terminal of the detector circuit; the output terminal of the detector terminal is connected to the input terminal of the zero cross detection circuit; and the output terminal of the zero cross detection circuit is connected to the input terminal of the singlechip. The ultrasonic receiver for ultrasonic payment has advantages of wide range of ultrasonic reception, high safety of data transmission and suitable application for long-distance mobile phone payment based on the ultrasonic technology.

Description

The ultrasonic receiver that is used for the ultrasonic wave payment
Technical field
The utility model relates to a kind of ultrasonic receiver, particularly relates to a kind of ultrasonic receiver for the ultrasonic wave payment.
Background technology
It is mutual that the ultrasonic wave wireless communication technique allows to carry out between the electronic equipment contactless Point-to-Point Data, realize the payment of mobile phone near field and the more multi-thread solution of business service down, it is mainly used in the hand-held terminal device that mobile phone etc. has the audio frequency playing function, in the application scenarios of the closely contactless bidirectional data interaction between mobile phone and terminal equipment, can provide fashion, safety, reliably, consumption and payment is used easily for the consumer.Existing ultrasonic wave wireless communication technique mainly be adopt do not increase and revise realize between mobile phone under the hardware condition rapidly, in the application scenarios of closely contactless bidirectional data interaction between mobile phone and terminal equipment, as long as the mobile phone that can sound is arranged, just can realize the audio frequency payment, can only realize some near field transaction yet the audio frequency transmission range that existing mobile phone player sends is nearer.
The utility model content
The purpose of this utility model is that a kind of data transmission security height, the wide ultrasonic receiver that is used for the ultrasonic wave payment of reception ultrasonic wave range are provided in order to address the above problem.
The utility model is achieved through the following technical solutions:
A kind of ultrasonic receiver for the ultrasonic wave payment, comprise the ultrasonic wave receiving circuit, pre-amplification circuit, bandwidth-limited circuit, automatic gain control circuit, the absolute value translation circuit, detecting circuit, zero cross detection circuit, single-chip microcomputer, display circuit and memory, the output of described ultrasonic wave receiving circuit is connected with the input of described pre-amplification circuit, the output of described pre-amplification circuit is connected with the input of described bandwidth-limited circuit, the output of described bandwidth-limited circuit is connected with the input of described automatic gain control circuit, the output of described automatic gain control circuit is connected with the input of described absolute value translation circuit, the output of described absolute value translation circuit is connected with the input of described detecting circuit, the output of described detecting circuit is connected with the input of described zero cross detection circuit, the output of described zero cross detection circuit is connected with the input of described single-chip microcomputer, and the output of described single-chip microcomputer is connected with the input of described memory with the input of described display circuit respectively.
Single-chip microcomputer is the core component of whole system, coordinates the work of each several part circuit.Transducer is selected the ultrasonic wave receiving sensor for use, and resonance frequency is 40kHz; The ultrasonic signal that receives is imported in the single-chip microcomputer after driving reception change-over circuit, pre-amplification circuit, bandwidth-limited circuit, automatic gain control circuit, absolute value translation circuit, detecting circuit, zero cross detection circuit through emission, and the signal after will handling after handling through single-chip microcomputer sends in memory and the display circuit.
Further, described ultrasonic wave receiving circuit comprises ultrasonic sensor, first potentiometer, second potentiometer, the 3rd potentiometer, first amplifier, second amplifier, the integrated phase-locked loop decoder, first resistance, second resistance, the 3rd resistance, the 4th resistance, first electric capacity and second electric capacity, the output of described ultrasonic sensor is connected with first end of described first resistance, second end of described first resistance respectively with the negative input of described first amplifier, first end of described first potentiometer is connected with the sliding end of described first potentiometer, second end of described first potentiometer is connected with the output of described first amplifier and first end of described first electric capacity respectively, the electrode input end of described first amplifier is connected with first end of described second resistance, second end of described first electric capacity is connected with first end of described the 3rd resistance, second end of described the 3rd resistance respectively with first end of second potentiometer, the sliding end of described second potentiometer is connected with the negative input of described second amplifier, the electrode input end of described second amplifier is connected with first end of described the 4th resistance, the output of described second amplifier is connected with first end of described second electric capacity and second end of described second potentiometer, second end of described second electric capacity is connected with the input of described integrated phase-locked loop decoder, and the output of described integrated phase-locked loop decoder is connected with sliding end with first end of described the 3rd potentiometer.
The beneficial effects of the utility model are:
By adopting technique scheme, the utility model reception ultrasonic wave range is wide, transmission Information Security height, and pay in the mobile phone far field that is fit to be applied to based on ultrasonic technology.
Description of drawings
Fig. 1 is the structured flowchart that the utility model is used for the ultrasonic receiver of ultrasonic wave payment;
Fig. 2 is the circuit diagram of ultrasonic wave receiving circuit in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments:
As shown in Figure 1, the utility model is used for the ultrasonic receiver of ultrasonic wave payment, comprise the ultrasonic wave receiving circuit, pre-amplification circuit, bandwidth-limited circuit, automatic gain control circuit, the absolute value translation circuit, detecting circuit, zero cross detection circuit, single-chip microcomputer, display circuit and memory, the output of described ultrasonic wave receiving circuit is connected with the input of described pre-amplification circuit, the output of described pre-amplification circuit is connected with the input of described bandwidth-limited circuit, the output of described bandwidth-limited circuit is connected with the input of described automatic gain control circuit, the output of described automatic gain control circuit is connected with the input of described absolute value translation circuit, the output of described absolute value translation circuit is connected with the input of described detecting circuit, the output of described detecting circuit is connected with the input of described zero cross detection circuit, the output of described zero cross detection circuit is connected with the input of described single-chip microcomputer, and the output of described single-chip microcomputer is connected with the input of described memory with the input of described display circuit respectively.
As shown in Figure 2, described ultrasonic wave receiving circuit comprises ultrasonic sensor U, the first potentiometer RP1, the second potentiometer RP2, the 3rd potentiometer RP3, the first amplifier A1, the second amplifier A2, integrated phase-locked loop decoder IC, first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, first capacitor C 1 and second capacitor C 2, the output of described ultrasonic sensor U is connected with first end of described first resistance R 1, second end of described first resistance R 1 respectively with the negative input of the described first amplifier A1, first end of the described first potentiometer RP1 is connected with the sliding end of the described first potentiometer RP1, second end of the described first potentiometer RP1 is connected with the output of the described first amplifier A1 and first end of described first capacitor C 1 respectively, the electrode input end of the described first amplifier A1 is connected with first end of described second resistance R 2, second end of described first capacitor C 1 is connected with first end of described the 3rd resistance R 3, second end of described the 3rd resistance R 3 respectively with first end of the second potentiometer RP2, the sliding end of the described second potentiometer RP2 is connected with the negative input of the described second amplifier A2, the electrode input end of the described second amplifier A2 is connected with first end of described the 4th resistance R 4, the output of the described second amplifier A2 is connected with first end of described second capacitor C 2 and second end of the described second potentiometer RP2, second end of described second capacitor C 2 is connected with the input of described integrated phase-locked loop decoder IC, and the output of described integrated phase-locked loop decoder IC is connected with sliding end with first end of described the 3rd potentiometer RP3.

Claims (2)

1. one kind is used for the ultrasonic receiver that ultrasonic wave is paid, it is characterized in that: comprise the ultrasonic wave receiving circuit, pre-amplification circuit, bandwidth-limited circuit, automatic gain control circuit, the absolute value translation circuit, detecting circuit, zero cross detection circuit, single-chip microcomputer, display circuit and memory, the output of described ultrasonic wave receiving circuit is connected with the input of described pre-amplification circuit, the output of described pre-amplification circuit is connected with the input of described bandwidth-limited circuit, the output of described bandwidth-limited circuit is connected with the input of described automatic gain control circuit, the output of described automatic gain control circuit is connected with the input of described absolute value translation circuit, the output of described absolute value translation circuit is connected with the input of described detecting circuit, the output of described detecting circuit is connected with the input of described zero cross detection circuit, the output of described zero cross detection circuit is connected with the input of described single-chip microcomputer, and the output of described single-chip microcomputer is connected with the input of described memory with the input of described display circuit respectively.
2. the ultrasonic receiver for ultrasonic wave payment according to claim 1, it is characterized in that: described ultrasonic wave receiving circuit comprises ultrasonic sensor, first potentiometer, second potentiometer, the 3rd potentiometer, first amplifier, second amplifier, the integrated phase-locked loop decoder, first resistance, second resistance, the 3rd resistance, the 4th resistance, first electric capacity and second electric capacity, the output of described ultrasonic sensor is connected with first end of described first resistance, second end of described first resistance respectively with the negative input of described first amplifier, first end of described first potentiometer is connected with the sliding end of described first potentiometer, second end of described first potentiometer is connected with the output of described first amplifier and first end of described first electric capacity respectively, the electrode input end of described first amplifier is connected with first end of described second resistance, second end of described first electric capacity is connected with first end of described the 3rd resistance, second end of described the 3rd resistance respectively with first end of second potentiometer, the sliding end of described second potentiometer is connected with the negative input of described second amplifier, the electrode input end of described second amplifier is connected with first end of described the 4th resistance, the output of described second amplifier is connected with first end of described second electric capacity and second end of described second potentiometer, second end of described second electric capacity is connected with the input of described integrated phase-locked loop decoder, and the output of described integrated phase-locked loop decoder is connected with sliding end with first end of described the 3rd potentiometer.
CN 201320181370 2013-04-11 2013-04-11 Ultrasonic receiver for ultrasonic payment Expired - Fee Related CN203180911U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320181370 CN203180911U (en) 2013-04-11 2013-04-11 Ultrasonic receiver for ultrasonic payment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320181370 CN203180911U (en) 2013-04-11 2013-04-11 Ultrasonic receiver for ultrasonic payment

Publications (1)

Publication Number Publication Date
CN203180911U true CN203180911U (en) 2013-09-04

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Application Number Title Priority Date Filing Date
CN 201320181370 Expired - Fee Related CN203180911U (en) 2013-04-11 2013-04-11 Ultrasonic receiver for ultrasonic payment

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103856270A (en) * 2014-03-13 2014-06-11 珠海市魅族科技有限公司 Data receiving method and terminal
CN104484962A (en) * 2014-10-30 2015-04-01 深圳市易联技术有限公司 Safety detection method and device for POS machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103856270A (en) * 2014-03-13 2014-06-11 珠海市魅族科技有限公司 Data receiving method and terminal
CN104484962A (en) * 2014-10-30 2015-04-01 深圳市易联技术有限公司 Safety detection method and device for POS machine

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130904

Termination date: 20140411

C17 Cessation of patent right