CN2724632Y - Ultrasonic human's height instrument - Google Patents
Ultrasonic human's height instrument Download PDFInfo
- Publication number
- CN2724632Y CN2724632Y CN 200420088564 CN200420088564U CN2724632Y CN 2724632 Y CN2724632 Y CN 2724632Y CN 200420088564 CN200420088564 CN 200420088564 CN 200420088564 U CN200420088564 U CN 200420088564U CN 2724632 Y CN2724632 Y CN 2724632Y
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- CN
- China
- Prior art keywords
- circuit
- ultrasound wave
- wave height
- height instrument
- ultrasonic
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an ultrasonic human's height instrument, which comprises a casing, an ultrasonic transmitter, an ultrasonic receiver, a display installed on the casing and an element circuit installed inside the casing. The element circuit is composed of a transmitting signal circuit connected with the ultrasonic transmitter, a receiving signal circuit connected with the ultrasonic receiver, a signal processing circuit, a display circuit and a power circuit. The display circuit is composed of a drive circuit and a decoding circuit. The transmitting signal circuit is an impulse power amplification circuit, and the receiving signal circuit is composed of a pulse amplification circuit and a level switching circuit which are connected together. The signal processing circuit is an SCM chip circuit. The ultrasonic human's height instrument of the utility model has cabinet volume, portability, changeable function, strong practicability, simple and reliable inner structure, low cost and convenient operation.
Description
Technical field
This utility model relates to a kind of distance mearuring equipment, relate in particular to a kind of measure human body height and short range from Portable Measurement Instrument.
Background technology
The ultrasound wave height instrument of existing market is designed to the desk-top height instrument of scale that electronics shows substantially, and cost height, complex structure, volume are heavy greatly again, and need take certain space, do not reach portable purpose fully, cause the trouble of carrying and installing.
For example the patent No. be 88211628 and application number be 88105505 Chinese patent file, disclose a kind of human body height noncontacting measurement device, comprised main shake unit, transmitter unit, receiving element, distance-Gain Automatic control unit, initial monostable agitator, working memory unit, benchmark monostable agitator, height comparator, clock pulse generator, enumerator, depositor, decoder, liquid crystal driver, digital display screen and power supply etc.It is said that its device can be used for non-cpntact measurement height, have the disease contagion that prevents testee and measure the time-saving and efficiency, do not have advantage such as mechanical wear.But this device also is the scale mesa structure, and internal circuit adopts discrete component and IC chip to mix banded circuit, the wiring complexity, take up space big, build is heavy, inconvenience is carried.
And for example the patent No. is 89221584.4 Chinese patent file, discloses a kind of " ultrasonic body measuring device ", and it is made up of ultrasonic distance detector, pressure transducer, shell fragment mini-printer etc.The advantage of introducing is: can measure height, body weight, build automatically with the speed of being exceedingly fast under the situation unconsciously people.Belong to non-contact measurement, compare with the contact type measurement of machinery have the reliability height, need not power set, do not have the machinery wearing and tearing, simple in structure, light, power saving, characteristics such as cost is low, measuring speed is fast, interest is strong, reequip a little and can carry out non-contact measurement high temperature, deep-etching thing liquid.But, it is similar that this installs the same device, also is to be designed to the desktop ultrasonic height wave measurement instrument of a kind of scale, when measuring height, adjust ultrasound emitting device and receiving-member earlier, start is measured again, and relatively more omnidistance then reflection and from human body head reflex time calculates human body height reading again, device volume is big, need take suitable large space, cost is higher, is not suitable for family and uses; Purposes is single, is confined to measure height, carries inconvenience, does not obviously catch up with the demand of modern market.
Existing ultrasound wave height instrument and similar products measuring principle are non-contact measurement, measurement relates to two-way hyperacoustic Coordination Treatment of making a return journey, the complex structure of circuit, machine volume is too big, device heaviness, function singleness, practicality are not strong, can not satisfy the portable brief high request of modern personage, and cost is higher, makes ultrasound wave height measure the needs that analogous instrument can't satisfy daily life all the time, fails to enter huge numbers of families.
Summary of the invention
At the above-mentioned shortcoming of conventional art, technical purpose of the present utility model be to provide that a kind of volume is small and exquisite, device is light, function is changeable, practical, and internal structure is simple and reliable, cost is lower, the ultrasound wave height instrument of being convenient to operate.
For this reason, technical solution of the present utility model is a kind of ultrasound wave height instrument, the parts of this height instrument comprise housing, ultrasonic transmitter, ultrasonic receiver, be installed in the display on the housing and be installed in the intravital element circuit of shell, described element circuit comprises: the circuit that transmits that is connected with described ultrasonic transmitter, the received signal circuit that is connected with described ultrasonic receiver, signal processing circuit, display circuit, power circuit, described display circuit comprises drive circuit and decoding circuit, and the described circuit that transmits is a pulse power amplifier circuit, described received signal circuit is linked by pulse amplifying circuit and level shifting circuit and forms, described signal processing circuit is a singlechip chip circuit, the different pins of this singlechip chip are connected with following each element circuit individually: be connected with the described circuit that transmits to send signal pulse to it, be connected with described received signal circuit with from its received signal pulse; In addition a little pins of this singlechip chip are connected with decoding circuit with described drive circuit in combination and send driving and decoded signal to it.Described signal processing circuit is the singlechip chip with two 8 data bit interfaces.Because only considering to adopt non-contact measurement to simplify and quicken, measures conventional art, prevent the different measuring and infect between the person, the design subconsciousness is only considered mesa structure, not considering to simplify circuit links, save the electrical equipment space, therefore, measuring circuit relates to two-way and makes a return journey hyperacoustic synchronous, coordinate, processing such as subtraction, cause wherein circuit structure complexity, and how habitually only with memory circuit, display circuit and part are measured the scope that control processing circuit incorporates the computer chip circuit into, and adopt the discrete circuit to realize that other most ofly measure relevant circuit as distance-gain control circuit, oscillating circuit, measure comparison control circuit etc., therefore cause equipment circuit inner numerous and jumbled and enclosure volume is heavy and produce other shortcoming.Many shortcomings at non-contact measurement, this utility model is abandoned non-contact measurement principle gaudy, adopt the design concept of directly measuring, be that ultrasonic transmitter, ultrasonic receiver directly contact the high-order bit of tested health and measure, will measure ultrasound wave and be reduced to make a return journey and one the road promptly finish measurement.The altitude meter circuit cooperates mcu programming efficiently, make the singlechip chip of 20 feet, 8 data bit double nips be enough to the data processing function of competent one road ultrasonic signal of making a return journey, this utility model adopt function that 20 foot singlechip chips carry out the relevant circuit of measurement that original discrete component forms as: take place and handle waveform, various coordination controls etc., thereby make discrete component circuit simplify and become amplifying circuit and the level shifting circuit that simply transmits and receives, circuit links extremely simple, lays the first stone for simplifying and improving externally measured structure and increase new operating function.In this utility model embodiment, single-chip microcomputer adopts 89C2051.
Based on above-mentioned advantage of the present utility model, for increasing operation simplification of the present utility model and function, described element circuit of the present utility model also comprises sound cue circuit, and this sound cue circuit and the described circuit that transmits all are connected on the same pin of described singlechip chip.Proper operation instrument when sound cue circuit is convenient to eyes and is left instrument; And above-mentioned linking method can adopt the compound use of single chip part pin under the prerequisite that does not influence electrical property, solves the not enough problem of mouth line of single-chip microcomputer.Show and instrument work that for the ease of control data the input of the lowest order digit of described drive circuit is connected with ground wire by a manual switch.One of pin of described singlechip chip is connected with described power circuit by another hand switch.Because gauge tap all makes control signal finally all be attached to the special pin of singlechip chip, can realize corresponding control by the special programming to these pins.And be handled easily, all hand switches all are installed in the described housing and its button is exposed on the surface of shell outward.
Because ultrasound wave receiving tube and transmitting tube all are capacitive elements, its noise is bigger, and for effectively limiting the amplitude of its noise, described ultrasonic receiver two ends are connected with the resistance that noise reduction is used.Described ultrasonic transmitter and ultrasonic receiver all are installed in the described housing and are provided with opening respectively on surface of shell.
Link the advantage of simplifying based on circuit of the present utility model, be the further measurement function that increases this utility model instrument portable performance, operation simplification and can realize human body height and multiple object height, described power circuit of the present utility model comprises battery case, described housing comprises the hinged two parts in ground of can " one " word taking down the exhibits, wherein, be provided with battery case in the part, and also be hinged with the benchmark frame that vertically to open on this part end, and be equiped with the every other parts of described altitude meter on another part.Wherein, carry battery case and " one " word hinged two housing sections in ground of taking down the exhibits, being convenient to draw in becomes half length and carries, and is convenient to anytime anywhere launch to implement to measure, and need not to be subjected to the restriction of alternating current power supply.
In a word, the utlity model has that simple in structure, with low cost, practicality is very strong, market competitiveness advantages of higher very.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the circuit theory block diagram of this utility model embodiment.
Fig. 2 is the circuit connection diagram of this utility model embodiment.
Fig. 3 is the schematic perspective view of the external structure of this utility model embodiment.
Fig. 4 is the expansion sketch map of Fig. 3.
The measuring principle sketch map of Fig. 5 this utility model embodiment.
The specific embodiment
As Fig. 1: the circuit theory block diagram that is depicted as this utility model altitude meter, the parts of this altitude meter comprise housing 1, ultrasonic transmitter Y2, ultrasonic receiver Y1, be installed in display led 1 and the element circuit that is installed in the housing 1 on the housing 1, described element circuit comprises: the circuit 2 that transmits that is connected with described ultrasonic transmitter Y2, the received signal circuit 3 that is connected with described ultrasonic receiver Y1, signal processing circuit 4, display circuit 5, power circuit 6, described display circuit 5 comprises drive circuit 5-1 and decoding circuit 5-2, and the described circuit 2 that transmits is pulse power amplifier circuit, described received signal circuit 3 is linked by pulse amplifying circuit 3-1 and level shifting circuit 3-2 and forms, described signal processing circuit 4 is a singlechip chip circuit, the different pins of this singlechip chip 4 are connected with following each element circuit individually: be connected with the described circuit 2 that transmits to send signal pulse to it, be connected with described received signal circuit 3 with from its received signal pulse; In addition a little pins of this singlechip chip 4 are connected with decoding circuit 5-2 with described drive circuit 5-1 in combination and send driving and decoded signal to it.Described signal processing circuit 4 is for having the singlechip chip of two 8 data bit interfaces.
Described element circuit also comprises sound cue circuit 7, and this sound cue circuit 7 all is connected on the same pin of described singlechip chip 4 with the described circuit 2 that transmits.
The input of the lowest order digit of described drive circuit 5-1 is connected with ground wire by a manual switch P K1.One of pin of described singlechip chip 4 is connected with described power circuit 6 by another hand switch PK2.
As Fig. 2: shown in the circuit connection diagram of this utility model altitude meter embodiment comprise:
Ultrasonic pulse power amplifier 2:, drive through inverter ic 2A～IC2E, C6 and to produce 2 times input voltage with the form of recommending and be added to ultrasonic transmitter Y2 two ends by the square-wave pulse group of 8 sections 40KHz of the P3.2 mouth of single-chip microcomputer (IC1) 4 output.Ultrasonic signal is strengthened the twice power emission goes out.
Noise limiter circuit: ultrasonic receiver Y1, resistance R 5 constitute noise limiter circuit.Because ultrasonic receiver Y1 is capacitive element, its noise is bigger, adds the amplitude that can effectively limit its noise behind the R5.
Ultrasound wave received signal circuit 3 comprises pulse amplifying circuit 3-1 and level shifting circuit 3-2, pulse amplifying circuit 3-1 is made up of R1, R2, R3, R4, R6, R8, R9, R10, R11, R12, C1, C2, C3, C5, IC1A, IC1B, and the ultrasonic reflections ripple is amplified; Level shifting circuit 3-2 is made of C4, D1, D2, R7, R14, R17, R18, Q1, Q2, and switching signal is handled through the P3.3 mouth that IC2F drives single-chip microcomputer 4.
Display circuit 5: the drive circuit 5-1 that comprises LED1, forms by Q3, Q4, Q5, Q6, R19, R20, R21, R22, R23, R24, R25, R26, the decoding circuit 5-2 that constitutes with P1, P3.1, P3.4, P3.5, the P3.7 of single-chip microcomputer 4.
Peripheral circuit comprises: the sound cue circuit 7 that the compound use of the P3.2 mouth of F1, Q7, R30 and single-chip microcomputer 4 constitutes; The compound use of the P3.2 of PK1 and single-chip microcomputer 4 is as the switching on and shutting down button, and PK2 is connected with the P3.0 of single-chip microcomputer 4 to be made as measuring button; R13, C7 constitute reset circuit.
IC1 single-chip microcomputer 4, Y1, Y2 are the most key in circuit, and its performance directly has influence on the sensitivity and the accuracy of measurement.
As Fig. 3,4: the schematic perspective view that is depicted as the external structure of this utility model embodiment: on housing 1, all hand switch PK1, PK2 are installed in the described housing 1 and its button of PK1, PK2 is exposed at housing 1 surface outward.Above-mentioned ultrasonic transmitter Y2 and ultrasonic receiver Y1 are installed in the described housing 1 and are provided with opening respectively on housing 1 surface.
Described housing 1 comprises by hinge 8 " one " words hinged two parts 1-1, the 1-2 in ground that take down the exhibits, described power circuit 6 comprises the battery case 6-1 that establishes in the housing 1-2 part, and also be hinged with the benchmark frame 9 that vertically to open on this part end, and be equiped with the every other parts of described altitude meter on another part 1-1.
As Fig. 5: the measuring principle sketch map that is depicted as this utility model embodiment.
Measuring principle: open housing 1 and make housing 1-1,1-2, benchmark frame 9 extend, with benchmark frame 9 vertical shell 1 (or being adjacent to vertical body of wall), housing 1-1, the 1-2 that stretches is adjacent to human body head or object top, human foot or object bottom stand on ground, connect instrument power source earlier by " switch " key PK1, start instrument; Then by " measurement " button PK2, input information: operating instrument begins to measure height.Display screen LED1 understands output information then: height numerical value: with three integer-bit centimetre cm is unit, and a decimal is arranged, and accurately numerical value can be as accurate as 5 millimeters, and measuring range is 0.6～2.5m.As correct reading then buzzer F1 send " serge " peal, show on the corresponding liquid crystal display screen " XXX.Xcm "; If the incorrect measurement of user or exceed measuring range, display screen LED1 will show error message "------", and false alarm is sent in while buzzer F1 cipher 2 times.
Note also following item when measuring height:
Should there be certain width on a, measured object surface, measured object surfacing, hard;
B, diastimeter perpendicular alignmnet measured object, not mobile diastimeter when measuring;
Between c, diastimeter and the measured object barrier can not be arranged;
D, having under the excessive environment of noise or wind speed, certainty of measurement and scope will be adversely affected.
Claims (9)
1, a kind of ultrasound wave height instrument, the parts of this altitude meter comprise housing, ultrasonic transmitter, ultrasonic receiver, be installed in the display on the housing and be installed in the intravital element circuit of shell, described element circuit comprises: the circuit that transmits that is connected with described ultrasonic transmitter, the received signal circuit that is connected with described ultrasonic receiver, signal processing circuit, display circuit, power circuit, described display circuit comprises drive circuit and decoding circuit, it is characterized in that: the described circuit that transmits is a pulse power amplifier circuit, described received signal circuit is linked by pulse amplifying circuit and level shifting circuit and forms, described signal processing circuit is a singlechip chip circuit, the different pins of this singlechip chip are connected with following each element circuit individually: be connected with the described circuit that transmits to send signal pulse to it, be connected with described received signal circuit with from its received signal pulse; In addition a little pins of this singlechip chip are connected with decoding circuit with described drive circuit in combination and send driving and decoded signal to it.
2, ultrasound wave height instrument as claimed in claim 1, it is characterized in that: described signal processing circuit is the singlechip chip with two 8 data bit interfaces.
3, ultrasound wave height instrument as claimed in claim 1 or 2, it is characterized in that: described element circuit also comprises sound cue circuit, this sound cue circuit and the described circuit that transmits all are connected on the same pin of described singlechip chip.
4, ultrasound wave height instrument as claimed in claim 3 is characterized in that: the input of the lowest order digit of described drive circuit is connected with ground wire by a manual switch.
5, ultrasound wave height instrument as claimed in claim 4, it is characterized in that: one of pin of described singlechip chip is connected with described power circuit by another hand switch.
6, ultrasound wave height instrument as claimed in claim 4 is characterized in that: all hand switches all are installed in the described housing and its button is exposed on the surface of shell outward.
7, ultrasound wave height instrument as claimed in claim 4, it is characterized in that: described ultrasonic receiver two ends are connected with the resistance that noise reduction is used.
8, ultrasound wave height instrument as claimed in claim 4 is characterized in that: described ultrasonic transmitter and ultrasonic receiver all are installed in the described housing and are provided with opening respectively on surface of shell.
9, ultrasound wave height instrument as claimed in claim 4, it is characterized in that: described power circuit comprises battery case, described housing comprises the hinged two parts in ground of can " one " word taking down the exhibits, wherein, be provided with battery case in the part, and also be hinged with the benchmark frame that vertically to open on this part end, and be equiped with the every other parts of described altitude meter on another part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420088564 CN2724632Y (en) | 2004-09-24 | 2004-09-24 | Ultrasonic human's height instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420088564 CN2724632Y (en) | 2004-09-24 | 2004-09-24 | Ultrasonic human's height instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2724632Y true CN2724632Y (en) | 2005-09-14 |
Family
ID=35039360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420088564 Expired - Lifetime CN2724632Y (en) | 2004-09-24 | 2004-09-24 | Ultrasonic human's height instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2724632Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757997A (en) * | 2015-03-13 | 2015-07-08 | 东莞捷荣技术股份有限公司 | Height measuring instrument |
-
2004
- 2004-09-24 CN CN 200420088564 patent/CN2724632Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757997A (en) * | 2015-03-13 | 2015-07-08 | 东莞捷荣技术股份有限公司 | Height measuring instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090429 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |