CN107589426A - A kind of supersonic range finder - Google Patents
A kind of supersonic range finder Download PDFInfo
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- CN107589426A CN107589426A CN201711079631.7A CN201711079631A CN107589426A CN 107589426 A CN107589426 A CN 107589426A CN 201711079631 A CN201711079631 A CN 201711079631A CN 107589426 A CN107589426 A CN 107589426A
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Abstract
The present invention relates to a kind of supersonic range finder, including ranging case, expansion link, base, support bar, receiver hole and launch hole, support bar is arranged on base middle position, expansion link is set among support bar, ranging case is arranged on support bar top, and ultrasonic ranging system built in ranging case, launch hole and receiver hole are set in ranging case side wall, the ultrasonic ranging system includes control circuit, ultrasonic wave transmitting circuit, ultrasonic wave receiving circuit and display circuit, ultrasonic wave transmitting circuit, ultrasonic wave receiving circuit and display circuit are connected with control circuit simultaneously, the range unit detection that the present invention designs is accurate, safe operation is stable.
Description
Technical field
The present invention relates to measuring apparatus field, more particularly to a kind of supersonic range finder.
Background technology
Instantly it is affected by environment larger in range unit in living, so as to have a strong impact on measurement accuracy, while ranging instantly
Device power consumption is high, reaction is slow, reduces the operating efficiency of user while improves use cost.
The content of the invention
It is above-mentioned to realize to solve above-mentioned technical problem it is an object of the invention to provide a kind of supersonic range finder
The purpose present invention uses following technical scheme：
A kind of supersonic range finder, including ranging case, expansion link, base, support bar, receiver hole and launch hole, support bar are set
Put and entreat position in the base, expansion link is set among support bar, ranging case is arranged on support bar top, and ultrasonic built in ranging case
Ripple range-measurement system, launch hole and receiver hole are set in ranging case side wall, and the ultrasonic ranging system includes control circuit, ultrasound
Wave transmitting circuit, ultrasonic wave receiving circuit and display circuit, ultrasonic wave transmitting circuit, ultrasonic wave receiving circuit and display circuit are same
When be connected with control circuit.
On the basis of above-mentioned technical proposal, the P1.1 ports of the control circuit chips U1 meet power supply VCC through resistance R2,
P1.1 ports connect chip U6 DQ ports simultaneously, and chip U6 VCC ports meet power supply, chip U6 GND ports ground connection, chip U1
RST ports meet power supply VCC, while electric capacity C1 both ends paralleling switch S1 through electric capacity C1, RST ports are grounded through resistance R1, core
Piece U1 XTAL2 ports and XTAL1 ports is grounded through electric capacity C2 and C1 respectively, while XTAL2 ports connect XTAL1 ends through crystal oscillator Y1
Mouthful, chip U1 GND ports ground connection, chip U1 VCC ports meet power supply VCC, while VCC ports meet display circuit, chip U1
P0.0-P0.7 ports the A-G ports and DP ports for meeting chip U3 respectively are connect through resistor chain R2, chip U1 EA ports are through electricity
Hinder R3 ground connection.
On the basis of above-mentioned technical proposal, the RST ports of the ultrasonic wave transmitting circuit chips U2 connect chip U1's
P1.0 ports, chip U2 THR ports connect slide rheostat R5, THR ports and connect to connect to slide through diode D2 through diode D1 to be become
Hinder device R6, THR port to be grounded through electric capacity C5, while THR ports connect chip U2 CVOLT ports and TRIG ports, chip simultaneously
U2 CVOLT ports are grounded through electric capacity C4, and chip U2 GND ports ground connection, chip U4 OUT terminal mouth connects chip through NAND gate UA
U4 T2IN ports, OUT terminal mouth connect chip U4 T1IN ports, and OUT terminal mouth meets slide rheostat R6 and resistance R7 simultaneously, slide
For rheostat R6 through slide rheostat R5 connecting resistance R4, resistance R4 meets power supply VCC, and chip U4 C1+ ports pass through and C2+ ports difference
Chip U4 C1- ports and C2- ports is connect through electric capacity C7 and C8, chip U4 V+ ports meet electric capacity C10, chip U4 through electric capacity C9
V- ports meet electric capacity C11, electric capacity C10 and C11 are grounded simultaneously, and chip U4 T2OUT ports and T2OUT ports connect ultrasonic wave hair
Emitter T1.
On the basis of above-mentioned technical proposal, the IN ports of the ultrasonic wave receiving circuit chips U5 connect ultrasonic receiver
RE1, ultrasonic receiver RE1 another port ground connection, chip U5 C1 ports meet electric capacity C12 ground connection, chip U5 through resistance R8
C2 ports be grounded through electric capacity C13, chip U5 GND ports ground connection, chip U5 F0 ports are through resistance R9 connecting resistance R10, electricity
Resistance R10 meets power supply VCC, and chip U5 C3 ports are grounded through electric capacity C14, and chip U5 OUT terminal mouth connects chip U1 P3.2 ports,
Chip U5 VCC ports connect chip U1 P3.2 ports through resistance R11.
On the basis of above-mentioned technical proposal, 1H ports, 2H ports, 3H ports and the 4H ends of the display circuit chips U3
Mouth connects transistor Q1-Q4 emitter stage respectively, and transistor Q1-Q4 colelctor electrode connects power supply VCC, transistor through resistance R13 simultaneously
Q1-Q4 base stage connects chip U1 P2.0-2.3 ports through resistance R14-R17 respectively.
On the basis of above-mentioned technical proposal, the chip U1 uses AT89S52 type single-chip microcomputers, and chip U2 uses NE555 types
Timer, chip U3 use SM410564 type common-anode charactrons, and chip U4 uses MAX232 type power conversion chips, chip U5
Using CX20106A type infrared ray detection reception circuits, chip U6 uses DX18B20 type temperature sensors.
Circuit is boosted using MAX232 in the design of the present invention, improves the fan-out capability of ultrasonic transducer, from
And improve the distance of ranging.Infrared receiver chip CX20106A is employed, reduces interfering between circuit, improves
The sensitivity of reception signal.Meanwhile digital temperature sensor DX18B20 is used to improve survey for temperature-compensation circuit in design
Accuracy of measurement and intelligence degree, and system cost is reduced to a certain extent.This supersonic range finder is good through test run
It is good, have that circuit is simple, easy to operate, stable and reliable in work, ranging is accurate and energy consumption is small, low cost and other advantages.
Brief description of the drawings
Fig. 1 is the structural representation that the present invention makes.
Fig. 2 is electric operation control circuit figure.
Fig. 3 is ultrasonic wave transmitting circuit figure.
Fig. 4 is ultrasonic wave receiving circuit figure.
Fig. 5 is display circuit figure.
In figure：1- ranging casees；2- expansion links；3- bases；4- support bars；5- receiver holes；6- launch holes.
Embodiment
The present invention is further elaborated with specific embodiment below in conjunction with the accompanying drawings.
A kind of supersonic range finder, including ranging case 1, expansion link 2, base 3, support bar 4, receiver hole 5 and launch hole
6, support bar 4 is arranged on the middle position of base 3, and expansion link 2 is set among support bar 4, and ranging case 1 is arranged on the top of support bar 4,
And ultrasonic ranging system built in ranging case 1, launch hole 5 and receiver hole 6, the ultrasonic ranging are set in the side wall of ranging case 1
System includes control circuit, ultrasonic wave transmitting circuit, ultrasonic wave receiving circuit and display circuit, ultrasonic wave transmitting circuit, ultrasound
Ripple receiving circuit and display circuit are connected with control circuit simultaneously.
Control circuit chips U1 P1.1 ports meet power supply VCC through resistance R2, while P1.1 ports meet chip U6 DQ
Port, chip U6 VCC ports connect power supply, and chip U6 GND ports ground connection, chip U1 RST ports connect power supply through electric capacity C1
VCC, while electric capacity C1 both ends paralleling switch S1, RST ports are grounded through resistance R1, chip U1 XTAL2 ports and XTAL1 ends
Mouth is grounded through electric capacity C2 and C1 respectively, while XTAL2 ports connect XTAL1 ports through crystal oscillator Y1, and chip U1 GND ports are grounded,
Chip U1 VCC ports meet power supply VCC, while VCC ports connect display circuit, and chip U1 P0.0-P0.7 ports are through resistor chain
R2 connects the A-G ports and DP ports for meeting chip U3 respectively, and chip U1 EA ports are grounded through resistance R3.
Ultrasonic wave transmitting circuit chips U2 RST ports connect chip U1 P1.0 ports, chip U2 THR ports two
Pole pipe D1 connect slide rheostat R5, THR ports connect through diode D2 connect slide rheostat R6, THR port through electric capacity C5 be grounded, together
When THR ports connect chip U2 CVOLT ports and TRIG ports simultaneously, chip U2 CVOLT ports are grounded through electric capacity C4, chip
U2 GND ports ground connection, chip U4 OUT terminal mouth connect chip U4 T2IN ports through NAND gate UA, and OUT terminal mouth connects chip U4's
T1IN ports, OUT terminal mouth meet slide rheostat R6 and resistance R7 simultaneously, and slide rheostat R6 is through slide rheostat R5 connecting resistances
R4, resistance R4 meet power supply VCC, and chip U4 C1+ ports pass through the C1- ends for meeting chip U4 through electric capacity C7 and C8 respectively with C2+ ports
Mouthful and C2- ports, chip U4 V+ ports meet electric capacity C10 through electric capacity C9, chip U4 V- ports meet electric capacity C11, electric capacity C10 and
C11 is grounded simultaneously, and chip U4 T2OUT ports and T2OUT ports meet ultrasonic transmitter T1.
Ultrasonic wave receiving circuit chips U5 IN ports meet ultrasonic receiver RE1, and ultrasonic receiver RE1's is another
Port is grounded, and chip U5 C1 ports connect electric capacity C12 ground connection through resistance R8, and chip U5 C2 ports are grounded through electric capacity C13, chip
U5 GND ports ground connection, through resistance R9 connecting resistance R10, resistance R10 connects power supply VCC, chip U5 C3 ends for chip U5 F0 ports
Mouth is grounded through electric capacity C14, and chip U5 OUT terminal mouth connects chip U1 P3.2 ports, and chip U5 VCC ports connect through resistance R11
Chip U1 P3.2 ports.
Display circuit chips U3 1H ports, 2H ports, 3H ports and 4H ports connect transistor Q1-Q4 transmitting respectively
Pole, transistor Q1-Q4 colelctor electrode meet power supply VCC through resistance R13 simultaneously, and transistor Q1-Q4 base stage is respectively through resistance R14-
R17 connects chip U1 P2.0-2.3 ports.
Chip U1 uses AT89S52 type single-chip microcomputers, and chip U2 uses NE555 type timers, and chip U3 uses SM410564
Type common-anode charactron, chip U4 use MAX232 type power conversion chips, and chip U5 uses CX20106A type infrared ray detections
Receiving circuit, chip U6 use DX18B20 type temperature sensors.
The temperature sensor used in control circuit is DX18B20.It is without any peripheral hardware, directly by temperature digital
Signal inputs single-chip microcomputer P1.1 mouth.Meanwhile one hundred million chip can be from single-chip processor i/o mouth power taking, without additional power supply.DX18B20
Containing the ROM of one 64 in piece, for storing the sequence number of itself, the id number exclusive as device, it is especially suitable for
Carry out multipoint temperature measuring.The temperature-measuring range of the chip is -55~125 DEG C, and precision is in the range of -10~85 DEG C
± 0.5 DEG C；It is 3.0~5.5V to be applicable voltage range.
Ultrasonic wave transmitting circuit selection NE555 chips build ultrasonic wave transmitting circuit.The electricity of ambipolar NE555 time base circuits
Pressure scope is 4.5~15V, and cmos type power supply accommodation is wider, is 2~18V.It can amplify with simulation trial
Device and TLL or cmos circuit share a power supply.In NE555 time base circuits, 4 pin are the RESET input, when 4 pin are
During low level, the stable output low level of output pin 3；When needing NE555 time base circuit output waveforms, 4 pin should connect high level or
Person is hanging.Square wave needs to be amplified the voltage of square-wave signal after producing, therefore it is required that circuit produces sufficiently large driving
Voltage.Circuit is boosted with MAX232 in the design, it is only necessary to which+5V power supplys are powered.
Ultrasonic wave reception unit point uses infrared remote control mode, and modulation chip used is CX20106A, and its modulating frequency is 38
~40kHz, using pulse position modulation method（PPM）, improve the interference free performance of infrared receiver.Echo-signal shaping is defeated
Go out for square-wave signal, input the input P3.2 of the external interrupt 0 of single-chip microcomputer afterwards, ultrasonic echo is received to calculate
The specific moment, so that it is determined that the aerial propagation time t of ultrasonic wave.
Using quaternity common-anode charactron SM410564 as display device in display circuit.Its is not common to terminate to
On the P0 mouths of single-chip microcomputer, on public tetra- pins of the P2.0~P2.3 for terminating to P2 mouths, carried out in a manner of dynamic scan
Scanning.Because the driving force of P2 mouths is limited, therefore the common port of charactron is not directly connected on P2 mouths, but is passed through
P2 mouths control the conducting of four triodes and shut-off to come to charactron power supply.
Described above is present pre-ferred embodiments, for the ordinary skill in the art, according to the present invention's
Teaching, in the case where not departing from the principle of the present invention and spirit, the changes, modifications, replacement and the change that are carried out to embodiment
Type is still fallen within protection scope of the present invention.
Claims (3)
1. a kind of supersonic range finder, it is characterised in that including ranging case, expansion link, base, support bar, receiver hole and hair
Perforation, support bar are arranged on base middle position, expansion link are set among support bar, and ranging case is arranged on support bar top, and
Ultrasonic ranging system built in ranging case, launch hole and receiver hole, the ultrasonic ranging system bag are set in ranging case side wall
Control circuit, ultrasonic wave transmitting circuit, ultrasonic wave receiving circuit and display circuit are included, ultrasonic wave transmitting circuit, ultrasonic wave receive
Circuit and display circuit are connected with control circuit simultaneously；
Control circuit chips U1 P1.1 ports meet power supply VCC through resistance R2, while P1.1 ports connect chip U6 DQ ports,
Chip U6 VCC ports connect power supply, chip U6 GND ports ground connection, and chip U1 RST ports meet power supply VCC through electric capacity C1, together
When electric capacity C1 both ends paralleling switch S1, RST ports are grounded through resistance R1, chip U1 XTAL2 ports and XTAL1 ports difference
It is grounded through electric capacity C2 and C1, while XTAL2 ports meet XTAL1 ports, chip U1 GND ports ground connection, chip U1 through crystal oscillator Y1
VCC ports meet power supply VCC, while VCC ports connect display circuit, and chip U1 P0.0-P0.7 ports connect point through resistor chain R2
Chip U3 A-G ports and DP ports is not connect, and chip U1 EA ports are grounded through resistance R3；
Ultrasonic wave transmitting circuit chips U2 RST ports connect chip U1 P1.0 ports, and chip U2 THR ports are through diode
D1 connect slide rheostat R5, THR ports connect through diode D2 connect slide rheostat R6, THR port through electric capacity C5 be grounded, simultaneously
THR ports connect chip U2 CVOLT ports and TRIG ports simultaneously, and chip U2 CVOLT ports are grounded through electric capacity C4, chip U2
GND ports ground connection, chip U4 OUT terminal mouth connects chip U4 T2IN ports through NAND gate UA, and OUT terminal mouth connects chip U4's
T1IN ports, OUT terminal mouth meet slide rheostat R6 and resistance R7 simultaneously, and slide rheostat R6 is through slide rheostat R5 connecting resistances
R4, resistance R4 meet power supply VCC, and chip U4 C1+ ports pass through the C1- ends for meeting chip U4 through electric capacity C7 and C8 respectively with C2+ ports
Mouthful and C2- ports, chip U4 V+ ports meet electric capacity C10 through electric capacity C9, chip U4 V- ports meet electric capacity C11, electric capacity C10 and
C11 is grounded simultaneously, and chip U4 T2OUT ports and T2OUT ports meet ultrasonic transmitter T1；
Ultrasonic wave receiving circuit chips U5 IN ports connect ultrasonic receiver RE1, ultrasonic receiver RE1 another port
Ground connection, chip U5 C1 ports connect electric capacity C12 ground connection through resistance R8, and chip U5 C2 ports are grounded through electric capacity C13, chip U5's
GND ports are grounded, and through resistance R9 connecting resistance R10, resistance R10 connects power supply VCC, chip U5 C3 ports warp for chip U5 F0 ports
Electric capacity C14 is grounded, and chip U5 OUT terminal mouth connects chip U1 P3.2 ports, and chip U5 VCC ports connect chip through resistance R11
U1 P3.2 ports.
A kind of 2. supersonic range finder according to claim 1, it is characterised in that display circuit chips U3 1H
Port, 2H ports, 3H ports and 4H ports connect transistor Q1-Q4 emitter stage respectively, and transistor Q1-Q4 colelctor electrode passes through simultaneously
Resistance R13 meets power supply VCC, and transistor Q1-Q4 base stage connects chip U1 P2.0-2.3 ports through resistance R14-R17 respectively.
3. a kind of supersonic range finder according to claim 1, it is characterised in that chip U1 uses AT89S52 types
Single-chip microcomputer, chip U2 use NE555 type timers, and chip U3 uses SM410564 type common-anode charactrons, and chip U4 is used
MAX232 type power conversion chips, chip U5 use CX20106A type infrared ray detection reception circuits, and chip U6 uses DX18B20
Type temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079631.7A CN107589426A (en) | 2017-11-06 | 2017-11-06 | A kind of supersonic range finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079631.7A CN107589426A (en) | 2017-11-06 | 2017-11-06 | A kind of supersonic range finder |
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| Publication Number | Publication Date |
|---|---|
| CN107589426A true CN107589426A (en) | 2018-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711079631.7A Withdrawn CN107589426A (en) | 2017-11-06 | 2017-11-06 | A kind of supersonic range finder |
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| CN (1) | CN107589426A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855814A (en) * | 2020-02-22 | 2020-10-30 | 惠州学院 | Nondestructive ultrasonic detection system for agilawood edgeworthia chrysantha based on single chip microcomputer control |
| CN112357829A (en) * | 2020-10-29 | 2021-02-12 | 温州市工业设计院 | All-round automatic handling equipment |
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| US6130858A (en) * | 1998-09-21 | 2000-10-10 | Felesky; Art | Multipurpose ultrasonic motion, position sensor for interactive display of play or exercise |
| CN203665495U (en) * | 2013-11-15 | 2014-06-25 | 嵊州市林美生物科技有限公司 | Rotary storage rack |
| CN206497636U (en) * | 2017-02-22 | 2017-09-15 | 黄霞 | A kind of teaching demonstrating board |
| CN106980120A (en) * | 2017-05-17 | 2017-07-25 | 吉林大学 | Multipoint mode ultrasonic snow depth measurement apparatus and measuring method |
| CN107310305A (en) * | 2017-07-17 | 2017-11-03 | 邹铁梅 | A kind of portable multi-surface exhibition instructional device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855814A (en) * | 2020-02-22 | 2020-10-30 | 惠州学院 | Nondestructive ultrasonic detection system for agilawood edgeworthia chrysantha based on single chip microcomputer control |
| CN112357829A (en) * | 2020-10-29 | 2021-02-12 | 温州市工业设计院 | All-round automatic handling equipment |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180116 |
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| WW01 | Invention patent application withdrawn after publication |