CN204382917U - A kind of range finding marking pen - Google Patents
A kind of range finding marking pen Download PDFInfo
- Publication number
- CN204382917U CN204382917U CN201520046049.0U CN201520046049U CN204382917U CN 204382917 U CN204382917 U CN 204382917U CN 201520046049 U CN201520046049 U CN 201520046049U CN 204382917 U CN204382917 U CN 204382917U
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- China
- Prior art keywords
- penholder
- marking pen
- chip
- digital display
- power supply
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- 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
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- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a kind of range finding marking pen, the power supply comprising mark nib, penholder and be packaged in penholder chamber, described pen arm end signalization source, described penholder outer wall arranges digital display, described power supply is connected with described signal source, described digital display respectively, described signal source comprises singlechip chip and the ultrasonic probe be attached thereto respectively and infrared color-changing lamp, and described digital display is connected with described singlechip chip; Described power supply comprises high-frequency current generator; Described penholder is Engineering Plastics Parts, and penholder end arranges PORT COM.The utility model is by the improvement to traditional marking pen, achieve ultrasonic ranging function and deixis, greatly can facilitate in productive life and need to find range and the occasion needed with marking pen mark, control easy, accuracy of measurement is high, can increase work efficiency, bring very large facility to surveying work, be with a wide range of applications.
Description
Technical field
The utility model relates to writing tool technology field, particularly relates to a kind of range finding marking pen.
Background technology
At life and career field, marking pen has become one of recording means commonly used the most, especially needs at some the occasion making the specific markers such as location, classification, distance display for a long time, such as in some range measurement work, is just usually used to.But the function of conventional marking pen is comparatively single, only achieves writing function, if specific function can be incorporated on marking pen, allow it be auxiliary record work service easily, just can greatly save workload and equipment cost.Application number be 201220585399.0 Chinese patent relate to a kind of can display range finding marking pen, the application point of center of gravity is in end always, no matter fulcrum where, although the arm of force of base is shorter, tumbler can be returned to origin-location because that moment of base is large.As long as nib is put in desktop upward, it will uprightly not fall, and a colored annulus is arranged at a body top, the color that show pen and ink corresponding to nib.When not using, nib can also be entered by rotating shrinking as lipstick.In range measurement and markers work, if can improve common marking pen, make it can realize Presentation Function of finding range, just can increase work efficiency to a great extent.
Utility model content
The purpose of this utility model is to provide a kind of range finding marking pen, and it, by the improvement to traditional marking pen, realizes range measurement and deixis, can increase work efficiency to a great extent.
Technical scheme adopted for achieving the above object is: a kind of range finding marking pen, the power supply comprising mark nib, penholder and be packaged in penholder chamber, described pen arm end signalization source, described penholder outer wall arranges digital display, described power supply is connected with described signal source, described digital display respectively, described signal source comprises singlechip chip and the ultrasonic probe be attached thereto respectively and infrared color-changing lamp, and described digital display is connected with described singlechip chip.
Described power supply comprises high-frequency current generator.
Described penholder is Engineering Plastics Parts, and penholder end arranges PORT COM.
Described ultrasonic probe comprises transmitting transducer and receiving transducer, described transmitting transducer connects phase inverter and signal amplifier, described receiving transducer comprises receiving chip, described receiving chip connects filter circuit, and described transmitting transducer and described receiving transducer are all connected the external pin of described singlechip chip.
Described signal amplifier comprises anti-phase scaling circuit, and described receiving chip is infrared ray detection reception circuit integrated chip, and described filter circuit is the two-stage filtering and amplifying circuit of resistance-capacitance coupling form.
Described singlechip chip is MCS-51 series of programmable microcontroller.
The utility model in use, on the basis of traditional marking pen, be integrated with the functions such as supersonic sounding, infrared instruction, distance display, infrared color-changing lamp direction and ultrasonic probe signal transmit direction are same point, while ultrasonic probe completes range finding, digital display directly can carry out the numerical monitor of distance, penholder end arranges PORT COM, and it is connected with the data registration unit of single-chip microcomputer, can derive stored data.
The core of this programme is the realization of ultrasonic probe distance measurement function, when needs carry out surveying work, press the shift knob be connected with power supply, start singlechip chip and the ultrasonic probe be attached thereto respectively and infrared color-changing lamp, single-chip microcomputer is transferred by data register enclosed inside subprogram, realize sampling, relatively, interrupt, the sequence of operations such as pulse signal sends, such as by subprogram controlling functions pin output signal pulses group, the elementary of signal amplifier is added to the form of recommending, push pull mode is low-resistance, be used for ensureing on mouth line regardless of walking voltage or dividing to walk minimum voltage, after amplifier boosting, signal promotes transmitting transducer and launches, after touching the reflecting surface indicated by infrared color-changing lamp, the barrier back wave received is sent to filter circuit and carries out amplification filtering by receiving transducer, namely by the high-gain of a resistance-capacitance coupling form, low-noise amplifier, after detection is carried out to the signal after amplification, detection of echoes is sent back to single-chip microcomputer receiving terminal through receiving chip, complete supersonic sounding process.
Single-chip microcomputer does not realize transmission and the reception of ultrasonic probe signal by means of only external pin, on the other hand the rectified signal received is converted to general-purpose digital signal, be transferred to the digital display that it connects, ultrasonic ranging principle runs into the echo that barrier reflects after constantly detecting ultrasonic wave and launching, thus measure the time difference T of transmitting and receiving echo, then obtain distance S=C*T/2, the C in formula is ultrasonic velocity.
The utility model is by the improvement to traditional marking pen, achieve ultrasonic ranging function and deixis, greatly can facilitate in productive life and need to find range and the occasion needed with marking pen mark, control easy, accuracy of measurement is high, can increase work efficiency, bring very large facility to surveying work, be with a wide range of applications.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is transmitting drive circuit figure of the present utility model.
Fig. 3 is reception filtering and amplifying circuit figure of the present utility model.
Fig. 4 is the utility model signal amplifier circuit schematic diagram.
Detailed description of the invention
As shown in Figures 1 to 4, a kind of range finding marking pen, comprise mark nib, penholder and be packaged in the power supply 3 in penholder chamber, pen arm end signalization source, penholder outer wall arranges digital display 4, power supply 3 is connected with signal source, digital display 4 respectively, and signal source comprises singlechip chip 5 and the ultrasonic probe 6 be attached thereto respectively and infrared color-changing lamp 7, and digital display 4 is connected with singlechip chip 5; Power supply comprises high-frequency current generator; Penholder is Engineering Plastics Parts, and penholder end arranges PORT COM 8; Ultrasonic probe 6 comprises transmitting transducer 9 and receiving transducer 10, transmitting transducer 9 connects phase inverter 11 and signal amplifier 12, receiving transducer 10 comprises receiving chip 2, receiving chip 2 connects filter circuit 1, and transmitting transducer 9 and receiving transducer 10 are all connected the external pin of singlechip chip; Signal amplifier 12 comprises anti-phase scaling circuit, and receiving chip 2 is infrared ray detection reception circuit integrated chip, and filter circuit 1 is the two-stage filtering and amplifying circuit of resistance-capacitance coupling form; Singlechip chip 5 is MCS-51 series of programmable microcontroller.
The utility model in use, on the basis of traditional marking pen, be integrated with the functions such as supersonic sounding, infrared instruction, distance display, infrared color-changing lamp direction and ultrasonic probe signal transmit direction are same point, while ultrasonic probe completes range finding, digital display directly can carry out the numerical monitor of distance, penholder end arranges PORT COM, and it is connected with the data registration unit of single-chip microcomputer, can derive stored data.
The core of this programme is the realization of ultrasonic probe distance measurement function, when needs carry out surveying work, press the shift knob be connected with power supply, start singlechip chip and the ultrasonic probe be attached thereto respectively and infrared color-changing lamp, single-chip microcomputer is transferred by data register enclosed inside subprogram, realize sampling, relatively, interrupt, the sequence of operations such as pulse signal sends, such as by subprogram controlling functions pin output signal pulses group, the elementary of signal amplifier is added to the form of recommending, amplifier circuit as shown in Figure 4, push pull mode is low-resistance, be used for ensureing on mouth line regardless of walking voltage or dividing to walk minimum voltage, after amplifier boosting, signal promotes transmitting transducer and launches, after touching the reflecting surface indicated by infrared color-changing lamp, the barrier back wave received is sent to filter circuit and carries out amplification filtering by receiving transducer, namely by the high-gain of a resistance-capacitance coupling form, low-noise amplifier, after detection is carried out to the signal after amplification, detection of echoes is sent back to single-chip microcomputer receiving terminal through receiving chip, complete supersonic sounding process.In whole process, transmitting transducer and phase inverter form launches drive circuit, impulse train is exported as drive input signal by the external pin of single-chip microcomputer, this signal is pulsewidth 250 μ s, the square-wave signal of carrier wave 40kHz, an electrode of transmitting transducer is delivered on signal one tunnel after one-level reverser, and another electrode of transmitting transducer is delivered on another road after two-stage reverser, by this form of recommending square-wave signal is added to the two ends of ultrasonic transducer, hyperacoustic emissive porwer can be improved.Output adopts two reverser parallel connections, in order to improve driving force.Upper resistance R1, R2 mono-aspect can improve the driving force that reverser exports high level, the damping of transmitting transducer can be increased on the other hand, shorten its free oscillation time, phase inverter can choose six strong anti-phase Schmidt triggers of antijamming capability, as 74LS14.
Receiving transducer forms through filter circuit and receiving chip, and receiving chip is infrared ray detection reception circuit integrated chip, as integrated chip CX20106A, has good sensitivity and stronger antijamming capability.By suitably changing the size of output capacitor, sensitivity and the antijamming capability of receiving circuit can also be changed.The signal of receiving chip, circuit after filtering before being transferred to single-chip microcomputer, and filter circuit is the two-stage filtering and amplifying circuit of resistance-capacitance coupling form, as shown in Figure 3, by chip input signal, by introducing electric capacity to cascode level circuit T
1base stage, by T
1t is reflected in after amplification
1on colelctor electrode, then introduce electric capacity to T through subordinate
2, after amplification, be reflected in T
2on colelctor electrode, finally obtain output signal and exported by OUT port.
Singlechip chip is MCS-51 series of programmable microcontroller, adopt the high-precision crystal oscillator of 12MHz, to obtain comparatively stabilizing clock frequency, reduce measure error, in the utility model, single-chip microcomputer exports the square-wave signal of the 40kHz needed for transmitting transducer with presetting P port, utilize the inverse signal that outer middle fracture monitoring ultrasonic wave receiving circuit exports, subsequently the inverse signal received is converted to general-purpose digital signal, be transferred to the outside digital display connected, ultrasonic ranging principle runs into the echo that barrier reflects after constantly detecting ultrasonic wave and launching, thus measure the time difference T of transmitting and receiving echo, then distance S=C*T/2 is obtained, C in formula is ultrasonic velocity.
Claims (6)
1. a range finding marking pen, the power supply comprising mark nib, penholder and be packaged in penholder chamber, it is characterized in that: described pen arm end signalization source, described penholder outer wall arranges digital display, described power supply is connected with described signal source, described digital display respectively, described signal source comprises singlechip chip and the ultrasonic probe be attached thereto respectively and infrared color-changing lamp, and described digital display is connected with described singlechip chip.
2. to find range as claimed in claim 1 marking pen, it is characterized in that: described power supply comprises high-frequency current generator.
3. to find range as claimed in claim 1 marking pen, it is characterized in that: described penholder is Engineering Plastics Parts, and penholder end arranges PORT COM.
4. to find range as claimed in claim 1 marking pen, it is characterized in that: described ultrasonic probe comprises transmitting transducer and receiving transducer, described transmitting transducer connects phase inverter and signal amplifier, described receiving transducer comprises receiving chip, described receiving chip connects filter circuit, and described transmitting transducer and described receiving transducer are all connected the external pin of described singlechip chip.
5. to find range as claimed in claim 4 marking pen, it is characterized in that: described signal amplifier comprises anti-phase scaling circuit, described receiving chip is infrared ray detection reception circuit integrated chip, and described filter circuit is the two-stage filtering and amplifying circuit of resistance-capacitance coupling form.
6. to find range as claimed in claim 1 marking pen, it is characterized in that: described singlechip chip is MCS-51 series of programmable microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046049.0U CN204382917U (en) | 2015-01-23 | 2015-01-23 | A kind of range finding marking pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046049.0U CN204382917U (en) | 2015-01-23 | 2015-01-23 | A kind of range finding marking pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204382917U true CN204382917U (en) | 2015-06-10 |
Family
ID=53355666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520046049.0U Expired - Fee Related CN204382917U (en) | 2015-01-23 | 2015-01-23 | A kind of range finding marking pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204382917U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104951105A (en) * | 2015-07-13 | 2015-09-30 | 常州市宏硕电子有限公司 | Electronic pen with ranging capacity |
| CN106443681A (en) * | 2016-11-10 | 2017-02-22 | 北京小米移动软件有限公司 | Electronic measurement pen |
-
2015
- 2015-01-23 CN CN201520046049.0U patent/CN204382917U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104951105A (en) * | 2015-07-13 | 2015-09-30 | 常州市宏硕电子有限公司 | Electronic pen with ranging capacity |
| CN106443681A (en) * | 2016-11-10 | 2017-02-22 | 北京小米移动软件有限公司 | Electronic measurement pen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20160123 |
|
| EXPY | Termination of patent right or utility model |