CN103616691A - Ultrasonic ranging device - Google Patents

Ultrasonic ranging device Download PDF

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Publication number
CN103616691A
CN103616691A CN201310577552.4A CN201310577552A CN103616691A CN 103616691 A CN103616691 A CN 103616691A CN 201310577552 A CN201310577552 A CN 201310577552A CN 103616691 A CN103616691 A CN 103616691A
Authority
CN
China
Prior art keywords
ultrasonic
distance
ultrasonic ranging
ranging
transducer
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.)
Pending
Application number
CN201310577552.4A
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Chinese (zh)
Inventor
李树成
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.)
ZHENGZHOU ZHONGZHI ELECTRONIC SCIENCE & TECHNOLOGY Co Ltd
Original Assignee
ZHENGZHOU ZHONGZHI ELECTRONIC SCIENCE & 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 ZHENGZHOU ZHONGZHI ELECTRONIC SCIENCE & TECHNOLOGY Co Ltd filed Critical ZHENGZHOU ZHONGZHI ELECTRONIC SCIENCE & TECHNOLOGY Co Ltd
Priority to CN201310577552.4A priority Critical patent/CN103616691A/en
Publication of CN103616691A publication Critical patent/CN103616691A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06Systems determining the position data of a target
    • G01S15/08Systems for measuring distance only

Abstract

The invention belongs to the field of electronic products, and particularly relates to an ultrasonic ranging device. The ultrasonic ranging device is composed of a hardware circuit part and a corresponding software part, wherein the hardware part comprises an ultrasonic transmitter, an echo signal receiver, a temperature measurement device, a display screen, an alarm, a power supply and the like. Ultrasonic signals are transmitted to air through an ultrasonic transmitting transducer, and echoes are received by an ultrasonic receiving transducer after the ultrasonic signals are reflected by a measured object. After relevant processing, INT0 pins which are input to a single-chip microcomputer are interrupted, interruption time is calculated, corresponding sound velocity is calculated according to specific temperature, a corresponding distance is acquired and displayed, and a distance alarming value can be set according to requirements on some occasions. The propagation distance is relatively long, energy consumption is slow, accuracy is high, the price is low, the temperature compensation and real-time LCD display functions are achieved, the structure is simple, and the size is small.

Description

A kind of device of ultrasonic ranging
Technical field
The invention belongs to electronics one class field, specifically refer to a kind of device of ultrasonic ranging.
Background technology
In daily productive life, a lot of occasions need to be carried out non-contact distance-measurement automatically as reversing automobile, robot obstacle-avoiding, industry well logging, reservoir level gauging etc.The features such as ultrasound wave refers to that frequency is greater than the mechanical Sasser producing in elastic medium of 20 kHz, and its tool directive property is strong, energy consumption is slow, propagation distance is relatively far away, are therefore often used to non-contact distance-measurement.Because ultrasound wave is insensitive to light, color and electromagnetic field, so ultrasonic ranging has good adaptive faculty to environment, and ultrasonic measurement also can well be traded off in real-time, precision, price in addition.
For this reason, the present invention attempts take single chip computer AT 89S52 as core, the ultrasonic range finder that utilize a small volume of a pair of 40 kH z piezoelectric supersonic sensor design, cheap, precision is higher, have temperature compensation, LCD shows and reports to the police in real time.
Summary of the invention
The present invention consists of the hardware circuit part such as ultrasound wave transmitting, echoed signal reception, temperature survey, demonstration and warning, power supply and corresponding software section.Whole device is controlled by single chip computer AT 89S52, and ultrasonic sensor adopts transmitting-receiving split type, is respectively a ultrasound transmitting transducer TCT40-16T and a ultrasound wave receiving transducer TCT40-16R.Ultrasonic signal is emitted in air by ultrasound transmitting transducer, meets measured object reflection back echo and is received by ultrasound wave receiving transducer.Carry out after relevant treatment, the INT0 pin of input single-chip microcomputer produces and interrupts, the time of experience in the middle of calculating, simultaneously again according to the corresponding velocity of sound of concrete temperature computation, can show that corresponding distance is used for showing, certainly in some occasions, also can as required, distance alarm value be set.
Technical scheme of the present invention
A device for ultrasonic ranging, it comprises: ultrasonic transmitter (1), ultrasonic receiver (2), temperature survey (3), display screen (4), alarm (5), power supply (6) single-chip microcomputer (7).
Whole system is controlled by single-chip microcomputer (7) AT89S52, and ultrasonic receiver (2), temperature survey (3), display screen (4), alarm (5), power supply (6) are connected to single-chip microcomputer (7) AT89S52 and control.
Beneficial effect of the present invention
1, propagation distance is relatively far away, and energy consumption is slow;
2, precision is accurate, cheap;
3, there is temperature compensation, LCD demonstration in real time;
4, simple in structure, volume is little.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Embodiment
Whole device is controlled by single-chip microcomputer (7) AT89S52, and ultrasonic sensor adopts transmitting-receiving split type, is respectively a ultrasonic transmitter (1) transducer TCT40-16T and a ultrasonic receiver (2) transducer TCT40-16R.Ultrasonic signal is emitted in air by ultrasonic transmitter (1) transducer, meets measured object reflection back echo and is received by ultrasonic receiver (2) transducer.Carry out after relevant treatment, the INT0 pin of input single-chip microcomputer produces and interrupts, the time of experience in the middle of calculating, simultaneously again according to the corresponding velocity of sound of concrete temperature computation, according to (velocity of sound v/m# s-1 313 319 322 331 337 344 350), can show that corresponding distance is used for showing, certainly in some occasions, also can as required, distance alarm value be set.
The present invention is described in further detail now to use example:
Ultrasonic transmitter (1), in order to improve emissive porwer, radiating circuit consists of phase inverter 74LS04 and ultrasonic transducer, with pushing away the form of exempting from, square-wave signal is added to ultrasonic transducer two ends, can improve hyperacoustic emissive porwer.Output terminal adopts two phase inverter parallel connections, for improving driving force.The ultrasonic transmit circuit that digital circuit forms, it has an electrode delivering to ultrasonic transducer after the square-wave signal one path one-level phase inverter of 40KHZ of single-chip microcomputer output, delivers to another electrode of ultrasonic transducer after another path two-stage phase inverter.
Ultrasonic receiver (2), ultrasound wave receiving circuit mainly consists of CX20106A.Integrated circuit CX20106A is the special chip that a infrared ray detection of Sony corporation of Japan receives, and is usually used in televisor infrared remote control receiver.CX20106A for preventing prime amplifier overload when input over, and inside is provided with bandpass filter, and frequency f 0 can be regulated by outer meeting resistance or the potentiometer of 5 pin.Easy to adjust during use, anti-electromagnetic interference capability is strong.The ultrasonic frequency 40kHz that considers carrier frequency 38kHz that infrared remote control is conventional and range finding is comparatively approaching, can utilize it to make ultrasound examination receiving circuit, experiment showed, that with CX20106A, receiving ultrasound wave (exporting high level during no signal) has very high sensitivity and antijamming capability.The size of suitable change capacitor C 11, can change sensitivity and the antijamming capability of receiving circuit.
Temperature survey (3), main circuit will adopt the DS18B20 of MAXIM company as temperature sensing and measurement mechanism, optional 9 or 12 of Measurement Resolution.Therefore can meet the thermometric requirement under usual terms completely.DS18B20 adopts TO mono-92 type encapsulation and only has 3 pins, a power lead, and a ground wire, a data lines, every DS18B20 has 64 bit serial code memories.Here use P3.6 mouth as the data input/output port with DS18B20.
Alarm (5), controls hummer by P1.7 if make mistakes when host computer and slave computer transmit data and produces warning .

Claims (4)

1. a device for ultrasonic ranging, it comprises: ultrasonic transmitter (1), ultrasonic receiver (2), temperature survey (3), display screen (4), alarm (5), power supply (6).
2. the device of a kind of ultrasonic ranging according to claim 1, is characterized in that, whole device is controlled by single chip computer AT 89S52, and ultrasonic sensor adopts transmitting-receiving split type.
3. the device of a kind of ultrasonic ranging according to claim 1, is characterized in that, has temperature compensation, LCD demonstration in real time.
4. the device of a kind of ultrasonic ranging according to claim 1, is characterized in that, uses P3.6 mouth as the data input/output port with DS18B20.
CN201310577552.4A 2013-11-19 2013-11-19 Ultrasonic ranging device Pending CN103616691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310577552.4A CN103616691A (en) 2013-11-19 2013-11-19 Ultrasonic ranging device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310577552.4A CN103616691A (en) 2013-11-19 2013-11-19 Ultrasonic ranging device

Publications (1)

Publication Number Publication Date
CN103616691A true CN103616691A (en) 2014-03-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310577552.4A Pending CN103616691A (en) 2013-11-19 2013-11-19 Ultrasonic ranging device

Country Status (1)

Country Link
CN (1) CN103616691A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103969648A (en) * 2014-04-22 2014-08-06 南昌大学 Anti-noise ultrasonic distance measurement device and method
CN104142501A (en) * 2014-07-01 2014-11-12 华南理工大学 Barrier detection alarming device and method based on multiple ultrasonic detectors
CN104316804A (en) * 2014-11-10 2015-01-28 国家电网公司 Ultrasonic positioning detection alarm used for transformer substation
CN107209256A (en) * 2014-10-22 2017-09-26 株式会社电装 Ultrasonic type article detection device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201383200Y (en) * 2009-01-06 2010-01-13 河北天创电气材料制造有限公司 Intelligent ultrasonic audio alarm
CN101915917A (en) * 2010-08-31 2010-12-15 上海交通大学 Ultrasonic ranging device
CN102841353A (en) * 2012-09-24 2012-12-26 中国医学科学院生物医学工程研究所 Irradiation distance measurer and implementation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201383200Y (en) * 2009-01-06 2010-01-13 河北天创电气材料制造有限公司 Intelligent ultrasonic audio alarm
CN101915917A (en) * 2010-08-31 2010-12-15 上海交通大学 Ultrasonic ranging device
CN102841353A (en) * 2012-09-24 2012-12-26 中国医学科学院生物医学工程研究所 Irradiation distance measurer and implementation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103969648A (en) * 2014-04-22 2014-08-06 南昌大学 Anti-noise ultrasonic distance measurement device and method
CN104142501A (en) * 2014-07-01 2014-11-12 华南理工大学 Barrier detection alarming device and method based on multiple ultrasonic detectors
CN107209256A (en) * 2014-10-22 2017-09-26 株式会社电装 Ultrasonic type article detection device
CN107209256B (en) * 2014-10-22 2020-04-28 株式会社电装 Ultrasonic object detection device
CN104316804A (en) * 2014-11-10 2015-01-28 国家电网公司 Ultrasonic positioning detection alarm used for transformer substation

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Application publication date: 20140305