CN107991667A - A kind of accurate range unit of Split ultrasonic - Google Patents
A kind of accurate range unit of Split ultrasonic Download PDFInfo
- Publication number
- CN107991667A CN107991667A CN201711460401.5A CN201711460401A CN107991667A CN 107991667 A CN107991667 A CN 107991667A CN 201711460401 A CN201711460401 A CN 201711460401A CN 107991667 A CN107991667 A CN 107991667A
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- transmitting
- central processing
- infrared
- processing element
- receiving
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO 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
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/16—Systems for determining distance or velocity not using reflection or reradiation using difference in transit time between electrical and acoustic signals
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of accurate range unit of Split ultrasonic, including signal range unit transmitting terminal and receiving terminal.1. transmitting terminal includes input and output pin, 3., 2., 4., wherein 3. transmitting terminal central processing element controls infrared transmitting tube 2. 4. to be sent at the same time by carry out signal with ultrasonic wave transmitting probe to ultrasonic wave transmitting probe to infrared transmitting tube to transmitting terminal central processing element.Receiving terminal includes：Receiving terminal central processing element is 6., ultrasonic wave receiving transducer is 5., receiving terminal ultrasonic signal process chip is 7., infrared receiving tube is 8., signal input and output pin is 9., 6. wherein data of the receiving terminal ultrasonic signal process chip 7. with infrared receiving tube 8. are handled by receiving terminal central processing element, and 9. exported by signal input and output pin.The invention avoids limitation of the conventional measurement away from Use barriers thing reflection measurement, has the advantages that cost is low, easily operated, measurement is accurate.
Description
Technical field
The present invention relates to art of ultrasound, more particularly to a kind of improvement of ultrasonic ranging mode.
Background technology
Ultrasonic wave is propagated in gas, liquid and solid with friction speed, is had good directionality, energy concentration, is transmitted across
Decay in journey the advantages that smaller, albedo is stronger, be frequently used for measurement distance.Propagated and launched using ultrasonic directional, meet barrier
Hinder the characteristic that reflection is formed after thing, by measure ultrasonic wave back and forth the time used multiplied by with actual propagation speed, so that it may calculate
Actual range, so as to fulfill noncontacting measurement target range.Ultrasonic range finder be mainly used in reversing prompting, construction site,
The scenes such as industry spot.But the premise of this kind of ultrasonic measurement, which is front, there must be barrier to form sound wave reflection, work as front
There is no barrier can not just carry out range measurement, there is certain limitation.Even if carrying out reflection ranging using ultrasonic wave,
For being transmitted back to the more demanding of corrugated, reflection angle cannot be excessive, and cannot form echo interference, and no it will cause can not survey
Amount or large error.To solve the above-mentioned problems, the present invention proposes a kind of split type ultrasound without barrier reflection sound wave
The accurate range unit of ripple.The device has the characteristics that without ultrasonic reflections, while has that cost is low, easily operated, measurement essence
The advantages that quasi-.
The content of the invention
It is an object of the invention to propose a kind of device that ultrasonic ranging can also be realized without barrier.The device is adopted
With split structure, infrared signal and ultrasonic signal are propagated at the same time in distance to be measured, utilizes the propagation of two kinds of signals
Time difference calculates measurement distance.
The range unit is split structure, including range unit signal transmitting terminal and signal receiving end.
Signal transmitting terminal includes transmitting terminal central processing element, input and output pin, infrared transmitting tube, ultrasonic wave transmitting spy
Head, wherein transmitting terminal central processing element are programmable single chip computer chip, and infrared transmitting tube is controlled by the pulse signal of pin
Sent at the same time by carry out signal with ultrasonic wave transmitting probe, and can periodicity sending pulse, to reach the mesh of continuous ranging
's.
Signal receiving end includes：Receiving terminal central processing element, ultrasonic wave receiving transducer, the processing of receiving terminal ultrasonic signal
Chip, infrared receiving tube, wherein signal input and output pin, the number of receiving terminal ultrasonic signal process chip and infrared receiving tube
Handled according to by receiving terminal central processing element, and exported by signal input and output pin.
Specifically, as a preferred embodiment, ultrasonic ranging system is using STC15W204S as central processing unit, the processing
Utensil has the features such as low-power consumption, high-performance, has a programmable full duplex serial communication interface, can be carried out at the same time serial transmission
And reception.
After the range-measurement system works on power, sent out at the same time by P55 and the P54 pin of transmitting terminal central processing unit STC15W204S
Go out pulse control signal and infrared control signal, pulse control signal drives ultrasonic wave to launch hair by ultrasonic drive circuit
Go out ultrasonic pulse, infrared control signal drives infrared dispensing device to send infrared signal by infrared transtation mission circuit.The opposing party
Face, after receiving terminal infrared detection chip HS0038B receives transmitting terminal infrared signal, through OUT pins output trigger signal extremely
The P32 pins of STC15W204S chips, triggering INT0 are interrupted, and T0 starts timing, and receiving terminal ultrasound detection circuit receives super
After acoustic signals, after the preposition enhanced processing of CX20106A chips, the OUT pins output trigger signal through CX20106A chips is extremely
The P33 pins of STC15W204S chips, triggering INT1 are interrupted, and T0 stop timings, a length of ultrasonic propagation is taken during T0 at this time
It is long.Receiving terminal STC15W204S goes out transmitting terminal and receiving terminal according to the aerial spread speed of ultrasonic wave and propagation duration calculation
The distance between, then data are sent out by the STC15W204S serial communication ports of receiving terminal, range measurement is completed.
The beneficial effects of the present invention are：The accurate range unit of this Split ultrasonic is reflected without using barrier, drop
The low use condition of ultrasonic ranging, expands use occasion, while have the features such as easy to operate, ranging is accurate.
Brief description of the drawings
Fig. 1 is the part structure diagram of the accurate range unit of Split ultrasonic；
Fig. 2 is the transmitting terminal circuit structure connection diagram of range unit；
Fig. 3 is the receiving terminal circuit structure connection diagram of range unit；
Fig. 4 is the transmitting terminal central processing unit connection pin figure of range unit；
Fig. 5 is the infrared and ultrasonic wave transmitting circuit figure of the transmitting terminal of range unit；
Fig. 6 is the receiving terminal ultrasound detection circuit figure of range unit；
Fig. 7 is the receiving terminal infrared circuit figure of range unit；
Fig. 8 is the receiving terminal central processing unit connection pin figure of range unit.
Embodiment
In order to which the technical features, objects and effects of the present invention are more clearly understood, now control illustrates this hair
Bright embodiment.
As shown in Figure 1, a kind of accurate range unit of Split ultrasonic, the range unit include：
One transmitting terminal central processing element, is connected with infrared transmitting tube and ultrasonic wave transmitting probe, with control infrared transmitting tube and
The signal transmitting of ultrasonic wave transmitting probe；
One infrared transmitting tube, is connected with transmitting terminal central processing element, is sent out according to the control signal of transmitting terminal central processing element
Send infrared signal；
One ultrasonic wave transmitting probe, is connected with transmitting terminal central processing element, is believed according to the control of transmitting terminal central processing element
Number send ultrasonic signal；
One receiving terminal central processing element, is connected with infrared receiving tube and receiving terminal ultrasonic signal process chip, for handling
The infrared signal of receiving terminal and the time difference of ultrasonic signal, and calculate measurement distance result；
One ultrasonic wave receiving transducer, is connected with receiving terminal ultrasonic signal process chip, and the ultrasonic wave for receiving transmitting terminal is believed
Number；
One receiving terminal ultrasonic signal process chip, is connected with ultrasonic wave receiving transducer and receiving terminal central processing element, is used for
The ultrasonic signal that processing probe receives, and testing result is uploaded to receiving terminal central processing element；
One infrared receiving tube, is connected with receiving terminal central processing element, is tied for receiving the infrared signal of transmitting terminal, and by detection
Fruit is uploaded to receiving terminal central processing element.
Preferably, the transmitting terminal central processing element and receiving terminal central processing element are programmable single chip computer.
Preferably, the range unit is surveyed by the time difference of optical signalling and ultrasonic signal on testing distance
Away from.
Preferably, the optical signalling of transmitting terminal transmitting and ultrasonic signal have simultaneity.
Preferably, the receiving terminal ultrasonic signal process chip has preposition enlarging function.
Preferably, the infrared receiving tube of the infrared transmitting tube of the transmitting terminal and receiving terminal can be by Laser emission and reception
Device substitutes.
Preferably, which is continuously transmitted at a certain time interval, to realize the continuous measurement of distance
And real-time tracing.
The step of carrying out range measurement using the present apparatus is as follows：
S1, as shown in Figure 2：3. the device transmitting terminal central processing element sends instruction by control circuit, make infrared transmission electricity
2. road direction infrared transmitting tube sends triggering command, 2. infrared transmitting tube sends infrared signal, at the same make ultrasonic wave transtation mission circuit to
Ultrasonic wave transmitting probeSend triggering command, ultrasonic probeSend ultrasonic signal；Trigger transmitting terminal centre at the same time
Reason device timer internal T0 starts timing；Every 20 milliseconds of repeat its transmissions once, Pulse Width Control are sent after reaching timing cycle again
Signal and infrared control signal, to realize the continuous measurement of distance and real-time tracing.
S2, as shown in Figure 3：6. receiving terminal central processing element is counted since 8. infrared receiving tube receives infrared signal
When, 5. ultrasonic wave receiving transducer receives ultrasonic signal, after 7. receiving terminal ultrasonic signal process chip is handled, upload
To receiving terminal central processing element 6., timing ends signal；
S3, after 6. receiving terminal central processing element processes the time difference that the time of infrared receiver and ultrasonic wave receive,
9. range measurements are exported by signal input and output pin.Measurement data can by two ways by range information into
Row is presented：One kind is serial ports, and the data unit received is millimeter；One kind is PWM（Pulse width modulation）, output frequency is
The high level time of the PWM of 50HZ, this PWM represent the length of distance, it is necessary to oneself convert this information into it is actual away from
From information.
As shown in figure 4, the transmitting terminal central processing unit STC15W204S connection pins of range unit are described as follows；
P55 pins output pulse signal is used to control infrared signal to launch, and P54 pins output pulse signal is used to control ultrasonic wave
Signal is launched.
As shown in figure 5, the infrared and ultrasonic wave transmitting circuit figure of the transmitting terminal of range unit is described as follows：
The P55 pins output pulse signal of transmitting terminal central processing unit STC15W204S is used to control infrared signal to launch, P54 pipes
Foot output pulse signal is used to control ultrasonic signal to launch.
As shown in fig. 6, the receiving terminal ultrasound detection circuit figure of range unit is described as follows：
The ultrasound detection circuit is using CX20106A as kernel processor chip.After front end circuit receives ultrasonic signal, it is sent to
1 pin of CX20106A（IN pins）, the pulse signal after CX20106A is handled is by 7 pins（OUT pins）Export to
The P33 pins of STC15W204S chips are handled into row decoding.
Total gain amplifier of the CX20106A chips is 80dB, its 7 pin（OUT pins）The control pulse train letter of output
Number amplitude is in the range of 3.5-5V.Overall gain size is by 2 pins（C1 pins）External R1, C4 determines that R1 is smaller or C4 is got over
Greatly, gain is higher, but when value is excessive will cause frequency response degree to be deteriorated, C4 1uF.Using peak detection mode detection capacitance
C5 is 3.3 uF, and R2 is the non-essential resistance of bandpass filter centre frequency f0, and integrating capacitor C7 takes 330pF.
As shown in fig. 7, the receiving terminal infrared circuit figure of the range unit of range unit is described as follows：
The infrared circuit is using HS0038B as kernel processor chip.After the detector detects infrared signal, after processing
Pulse signal is by 1 pin（OUT pins）Export and handled to the P32 pins of STC15W204S chips into row decoding.
As shown in figure 8, the receiving terminal central processing unit STC15W204S connection pin figures of range unit are described as follows：
P32 pins are connected to the OUT pins of infrared receiving device HS0038B；
P33 pins are connected to the OUT pins of receiving terminal ultrasound detection circuit CX20106A chips.
It should be noted that for foregoing each embodiment of the method, in order to be briefly described, therefore it is all expressed as to a system
The combination of actions of row, but those skilled in the art should know, the application and from the limitation of described sequence of movement, because
For according to the application, certain some step can use other orders or be carried out at the same time.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, involved action and unit not necessarily this Shen
Please be necessary.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and is not described in some embodiment
Part, may refer to the associated description of other embodiment.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, ROM, RAM etc..
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
Enclose, therefore equivalent variations made according to the claims of the present invention, it is still within the scope of the present invention.
Claims (7)
- A kind of 1. accurate range unit of Split ultrasonic, it is characterised in that：The range unit includes：One transmitting terminal central processing element, is connected with infrared transmitting tube and ultrasonic wave transmitting probe, with control infrared transmitting tube and The signal transmitting of ultrasonic wave transmitting probe；One infrared transmitting tube, is connected with transmitting terminal central processing element, is sent out according to the control signal of transmitting terminal central processing element Send infrared signal；One ultrasonic wave transmitting probe, is connected with transmitting terminal central processing element, is believed according to the control of transmitting terminal central processing element Number send ultrasonic signal；One receiving terminal central processing element, is connected with infrared receiving tube and receiving terminal ultrasonic signal process chip, for handling The infrared signal of receiving terminal and the time difference of ultrasonic signal, and calculate measurement distance result；One ultrasonic wave receiving transducer, is connected with receiving terminal ultrasonic signal process chip, and the ultrasonic wave for receiving transmitting terminal is believed Number；One receiving terminal ultrasonic signal process chip, is connected with ultrasonic wave receiving transducer and receiving terminal central processing element, is used for The ultrasonic signal that processing probe receives, and testing result is uploaded to receiving terminal central processing element；One infrared receiving tube, is connected with receiving terminal central processing element, is tied for receiving the infrared signal of transmitting terminal, and by detection Fruit is uploaded to receiving terminal central processing element.
- 2. range unit as claimed in claim 1, it is characterised in that：The transmitting terminal central processing element and receiving terminal centre Reason chip is programmable single chip computer.
- 3. range unit as claimed in claim 1, it is characterised in that：The range unit passes through optical signalling and ultrasonic signal Time difference on testing distance carries out ranging.
- 4. range unit as claimed in claim 1, it is characterised in that：The optical signalling and ultrasonic signal of transmitting terminal transmitting have Simultaneity.
- 5. range unit as claimed in claim 1, it is characterised in that：The receiving terminal ultrasonic signal process chip has preposition Enlarging function.
- 6. range unit as claimed in claim 1, it is characterised in that：The infrared transmitting tube of the transmitting terminal and receiving terminal it is infrared Reception pipe can be substituted by Laser emission and reception device.
- 7. range unit as claimed in claim 1, it is characterised in that：The signal transmitting terminal carries out continuously at a certain time interval Send, to realize the continuous measurement of distance and real-time tracing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711460401.5A CN107991667A (en) | 2017-12-28 | 2017-12-28 | A kind of accurate range unit of Split ultrasonic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711460401.5A CN107991667A (en) | 2017-12-28 | 2017-12-28 | A kind of accurate range unit of Split ultrasonic |
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| Publication Number | Publication Date |
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| CN107991667A true CN107991667A (en) | 2018-05-04 |
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| CN201711460401.5A Pending CN107991667A (en) | 2017-12-28 | 2017-12-28 | A kind of accurate range unit of Split ultrasonic |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109884645A (en) * | 2019-04-09 | 2019-06-14 | 苏州顺憬志联新材料科技有限公司 | A kind of ultrasonic distance measuring module |
| CN111596286A (en) * | 2020-06-12 | 2020-08-28 | 国创新能源汽车智慧能源装备创新中心(江苏)有限公司 | Distance measuring method and device |
| CN115980759A (en) * | 2023-03-17 | 2023-04-18 | 武汉理工大学三亚科教创新园 | Ocean engineering construction ultrasonic ranging device and method |
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| CN1576878A (en) * | 2003-07-23 | 2005-02-09 | Lg电子株式会社 | Method and apparatus for detecting position of mobile robot |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884645A (en) * | 2019-04-09 | 2019-06-14 | 苏州顺憬志联新材料科技有限公司 | A kind of ultrasonic distance measuring module |
| CN111596286A (en) * | 2020-06-12 | 2020-08-28 | 国创新能源汽车智慧能源装备创新中心(江苏)有限公司 | Distance measuring method and device |
| CN115980759A (en) * | 2023-03-17 | 2023-04-18 | 武汉理工大学三亚科教创新园 | Ocean engineering construction ultrasonic ranging device and method |
| CN115980759B (en) * | 2023-03-17 | 2023-05-16 | 武汉理工大学三亚科教创新园 | Ultrasonic ranging device and ranging method for ocean engineering construction |
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