CN207780231U - A kind of accurate range unit of Split ultrasonic - Google Patents
A kind of accurate range unit of Split ultrasonic Download PDFInfo
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- CN207780231U CN207780231U CN201721883436.5U CN201721883436U CN207780231U CN 207780231 U CN207780231 U CN 207780231U CN 201721883436 U CN201721883436 U CN 201721883436U CN 207780231 U CN207780231 U CN 207780231U
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Abstract
The utility model discloses a kind of accurate range units of Split ultrasonic, including signal range unit transmitting terminal and receiving terminal.Transmitting terminal include input and output pin 1., 3., 2., 4., wherein 3. transmitting terminal central processing element controls infrared transmitting tube and 2. 4. by carry out signal while being sent with ultrasonic wave transmitting probe ultrasonic wave transmitting probe infrared transmitting tube 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 processing chip is 7., infrared receiving tube is 8., signal input and output pin is 9., wherein 7. 6. receiving terminal ultrasonic signal processing chip is handled with the data of infrared receiving tube 8. by receiving terminal central processing element, and is 9. exported by signal input and output pin.The utility model avoids limitation of the conventional measurement away from Use barriers object reflection measurement, has many advantages, such as that at low cost, easily operated, measurement is accurate.
Description
Technical field
The utility model is related to art of ultrasound more particularly to a kind of improvement of supersonic range finder.
Background technology
Ultrasonic wave is propagated in gas, liquid and solid with friction speed, and with directionality, good, energy is concentrated, is transmitted across
Decay in journey the advantages that smaller, albedo is stronger, is frequently used for measurement distance.It is propagated and is emitted using ultrasonic directional, meet barrier
Hinder the characteristic that reflection is formed after object, by measure ultrasonic wave back and forth the time used multiplied by with actual propagation speed, so that it may calculate
Actual range, to realize 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, must have barrier to form sound wave reflection, work as front
There is no barrier that 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 utility model proposes a kind of without the split type of barrier reflection sound wave
The accurate range unit of ultrasonic wave.The device has the characteristics that be not necessarily to ultrasonic reflections, while having at low cost, easily operated, survey
Measure the advantages that accurate.
Utility model content
The purpose of this utility model is that proposing a kind of device that can also realize ultrasonic ranging without barrier.The dress
It sets and uses split structure, infrared signal and ultrasonic signal are propagated simultaneously in distance to be measured, utilize two kinds of signals
Propagation 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 simultaneously 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, signal input and output pin, the wherein number of receiving terminal ultrasonic signal processing chip and infrared receiving tube
It is handled according to by receiving terminal central processing element, and is 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, and there are one programmable full duplex serial communication interfaces, can be carried out at the same time serial transmission
And reception.
After the range-measurement system works on power, sent out simultaneously 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 emit hair by ultrasonic drive circuit
Go out ultrasonic pulse, infrared control signal drives infrared sending device to send out infrared signal by infrared transmission circuit.Another party
Face, after receiving terminal infrared detection chip HS0038B receives transmitting terminal infrared signal, extremely through OUT pins output trigger signal
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 when 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 utility model are：The accurate range unit of this Split ultrasonic is anti-without using barrier
It penetrates, reduces the use condition of ultrasonic ranging, expand use occasion, while there is the features such as easy to operate, ranging is accurate.
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.
Specific implementation mode
For a clearer understanding of the technical features, objectives and effects of the utility model, existing control description of the drawings
Specific embodiment of the present utility model.
As shown in Figure 1, a kind of accurate range unit of Split ultrasonic, the range unit include：
One transmitting terminal central processing element, connect with infrared transmitting tube and ultrasonic wave transmitting probe, to control infrared emission
The signal of pipe and ultrasonic wave transmitting probe emits；
One infrared transmitting tube is connect with transmitting terminal central processing element, is believed according to the control of transmitting terminal central processing element
Number send infrared signal；
One ultrasonic wave transmitting probe, connect with transmitting terminal central processing element, according to the control of transmitting terminal central processing element
Signal processed sends ultrasonic signal；
One receiving terminal central processing element connect with infrared receiving tube and receiving terminal ultrasonic signal processing chip, is used for
The time difference of the infrared signal and ultrasonic signal of receiving terminal is handled, and calculates measurement distance result；
One ultrasonic wave receiving transducer is connect, the ultrasound for receiving transmitting terminal with receiving terminal ultrasonic signal processing chip
Wave signal；
One receiving terminal ultrasonic signal processing chip, connect with ultrasonic wave receiving transducer and receiving terminal central processing element,
The ultrasonic signal received for handling probe, and testing result is uploaded to receiving terminal central processing element；
One infrared receiving tube is connect with receiving terminal central processing element, the infrared signal for receiving transmitting terminal, and will inspection
It surveys result and 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 and ultrasonic signal of transmitting terminal transmitting have simultaneity.
Preferably, the receiving terminal ultrasonic signal processing 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 out instruction by control circuit, make infrared hair
2. power transmission road direction infrared transmitting tube sends out triggering command, 2. infrared transmitting tube sends out infrared signal, while ultrasonic wave being made to send electricity
Road direction ultrasonic wave transmitting probeSend out triggering command, ultrasonic probeSend out ultrasonic signal；It triggers in transmitting terminal simultaneously
Central processor timer internal T0 starts timing；Every 20 milliseconds of repeat its transmissions are primary, and pulse is sent out again after reaching timing cycle
Signal and infrared control signal are controlled, to realize continuous measurement and the real-time tracing of distance.
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 processing chip is handled, upload
6. to receiving terminal central processing element, timing ends signal；
S3,6. the time difference that the time of infrared receiver receives with ultrasonic wave is processed by receiving terminal central processing element
Afterwards, 9. range measurements are exported by signal input and output pin.Measurement data can be believed distance by two ways
Breath is presented：One is serial ports, the data unit received is millimeter；One is PWM（Pulse width is modulated）, output frequency
High level time for the PWM of 50HZ, this PWM represents the length of distance, needs oneself to convert this information into actual
Range information.
As shown in figure 4, the transmitting terminal central processing unit STC15W204S connection pins of range unit are described as follows；
For P55 pin output pulse signals for controlling infrared signal transmitting, P54 pin output pulse signals are super for controlling
Acoustic signals emit.P30 pins, P31 pins are respectively connected to the 1 of external interface, 2 pins；
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 pin output pulse signals of transmitting terminal central processing unit STC15W204S emit for controlling infrared signal,
P54 pin output pulse signals are for controlling ultrasonic signal transmitting.
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, send
To 1 pin of CX20106A（IN pins）, through CX20106A treated pulse signals 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, 7 pins（OUT pins）The control pulse train of output is believed
Number amplitude is within the scope 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, it will handle
Pulse signal afterwards is by 1 pin（OUT pins）It exports and is handled into row decoding to the P32 pins of STC15W204S chips.
As shown in figure 8, the receiving terminal central processing unit STC15W204S connection pin figures of range unit are described as follows：
P30 pins are connected to 2 pins of external interface；
P31 pins are connected to 1 pin of external interface；
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 each embodiment of the method above-mentioned, for simple description, therefore it is all expressed as to a system
The combination of actions of row, but those skilled in the art should understand that, the application is not limited by the described action sequence, because
For according to the application, certain some step can be performed in other orders or simultaneously.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
It please be necessary.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, 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 realizing 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 when being executed, 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..
Above disclosures are merely preferred embodiments of the utility model, with this utility model cannot be limited certainly
Interest field, therefore equivalent variations made according to the claim of the utility model still fall within the scope of the utility model.
Claims (7)
1. a kind of accurate range unit of Split ultrasonic, it is characterised in that：The range unit includes：
One transmitting terminal central processing element, connect with infrared transmitting tube and ultrasonic wave transmitting probe, with control infrared transmitting tube and
The signal of ultrasonic wave transmitting probe emits；
One infrared transmitting tube is connect 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, connect 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 connect with infrared receiving tube and receiving terminal ultrasonic signal processing 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 connect with receiving terminal ultrasonic signal processing chip, and the ultrasonic wave for receiving transmitting terminal is believed
Number；
One receiving terminal ultrasonic signal processing chip, connect 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 connect with receiving terminal central processing element, the infrared signal for receiving transmitting terminal, and detection is tied
Fruit is uploaded to receiving terminal central processing element.
2. range unit as described 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 described 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 described in claim 1, it is characterised in that：The optical signalling and ultrasonic signal of transmitting terminal transmitting have
Simultaneity.
5. range unit as described in claim 1, it is characterised in that：The receiving terminal ultrasonic signal processing chip has preposition
Enlarging function.
6. range unit as described 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 described in claim 1, it is characterised in that：The signal transmitting terminal carries out continuously at a certain time interval
It sends, to realize continuous measurement and the real-time tracing of distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721883436.5U CN207780231U (en) | 2017-12-28 | 2017-12-28 | A kind of accurate range unit of Split ultrasonic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721883436.5U CN207780231U (en) | 2017-12-28 | 2017-12-28 | A kind of accurate range unit of Split ultrasonic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207780231U true CN207780231U (en) | 2018-08-28 |
Family
ID=63225445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721883436.5U Active CN207780231U (en) | 2017-12-28 | 2017-12-28 | A kind of accurate range unit of Split ultrasonic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207780231U (en) |
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2017
- 2017-12-28 CN CN201721883436.5U patent/CN207780231U/en active Active
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A split type ultrasonic precise ranging device Effective date of registration: 20201116 Granted publication date: 20180828 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU ZHUFEI INTELLIGENT EQUIPMENT Co.,Ltd. Registration number: Y2020980007851 |