CN201414799Y - Pulmonary gas detector - Google Patents
Pulmonary gas detector Download PDFInfo
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- CN201414799Y CN201414799Y CN 200920090003 CN200920090003U CN201414799Y CN 201414799 Y CN201414799 Y CN 201414799Y CN 200920090003 CN200920090003 CN 200920090003 CN 200920090003 U CN200920090003 U CN 200920090003U CN 201414799 Y CN201414799 Y CN 201414799Y
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Abstract
The utility model provides a pulmonary gas detector which comprises a gas tube, a gas pressure sensor for communicating the gas tube, an alcohol sensor, a control circuit and an LCD display screen. The control circuit comprises a single chip, an alcohol sensor acquisition circuit, a power supply circuit and an LCD drive circuit; the single chip is connected with the voltage output end of the powersupply circuit; the gas pressure sensor is respectively connected with the voltage output ends of the single chip and the power supply circuit; the alcohol sensor is connected with the voltage outputend of the power supply circuit; the alcohol sensor acquisition circuit is respectively connected with the single chip and the alcohol sensor; an LCD display circuit comprises a display driving chip;and the display driving chip is respectively connected with the voltage output ends of the single chip, the LCD display screen and the power supply circuit. The detector has the advantages of stableperformance, complete functions and accurate detection data, can be used as an administrative enforcement judging tool, and also can be used for medical institution examination and family health.
Description
Technical field
This utility model relates to a kind of equipment that health is checked that is used for, and specifically, has related to a kind of lung gas detecting instrument with vital capacity test function and alcohol content measuring ability.
Background technology
In recent years, medical circle is with the vital capacity test big event as human body health, the people of anapnometer, and not only cardiovascular function is good, and musculation ability and health oxygen delivery capacity are all more intense; For this reason, occurred various vital capacity testing equipments on the market, these equipment are used for medical institutions' health check-up more, and in recent years, along with improving constantly of health of people consciousness, these equipment have also progressively entered family, promptly are used for kinsfolk's physical examination and health care of body;
At present, selling on the market that various alcoholicity of exhaled gas detectors, this detector are arranged is to be used for the instrument of alcohol content in the human body breath, is a kind of as the quick testing equipment of alcohol content after drinking; These instruments are usually used in traffic police's on-site law-enforcing and medical institutions' health check-up, and in recent years, and these instruments are entering part family progressively also.
Above equipment and instrument all are the detections routinely that is used for pulmonary gases, function singleness, and also error information detection is bigger than normal, makes the reference value misalignment of health inspection easily, makes the accuracy and the standard misalignment of administrative law enforcement easily; In order to solve the problem of above existence, guaranteeing has perfect a, detection accurately to human lung's gas, and people are seeking a kind of ideal technical solution always.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, thereby a kind of perfect in shape and function is provided, detects accurately, the lung gas detecting instrument of stable performance.
To achieve these goals, this utility model provides a kind of lung gas detecting instrument, this detector comprises gas pressure sensor, control circuit and the LCD display of trachea, connectivity trachea, and described control circuit comprises single-chip microcomputer, power-supplying circuit and LCD drive circuit; Described single-chip microcomputer connects the voltage output end of described power-supplying circuit; Described gas pressure sensor connects the voltage output end of single-chip microcomputer and described power-supplying circuit respectively; Described LCD drive circuit comprises display driver chip, and described display driver chip connects the voltage output end of single-chip microcomputer, LCD display and power-supplying circuit respectively.
This device also comprises the alcohol sensor of connectivity trachea, and described alcohol sensor connects the voltage output end of described power-supplying circuit; Described control circuit also comprises the alcohol sensor sample circuit, described alcohol sensor sample circuit comprises the 5th, the 6th, the 7th resistance and second electric capacity, wherein, described the 7th resistance one end connects the signal output part of described alcohol sensor, described the 7th resistance other end is used to connect described single-chip microcomputer, described second electric capacity, one end connects described the 7th resistance other end, the described second electric capacity other end ground connection, five, an end of the 6 two resistance connects described the 7th resistance one end respectively, and the other end of the 5th, the 6 two resistance is ground connection respectively.
The relative prior art of this utility model has substantive distinguishing features and progress, specifically, this detector detects the vital capacity test and combines with alcohol content, during use, can repeatedly test instantaneous vital capacity, accumulative total vital capacity and instantaneous breath pressure, can measure the alcohol content of breath again according to aforementioned data, and can guarantee that the gas of measuring is the gas in lung deep, make the alcohol content test data in the breath reach consistent with alcohol content data in the blood, promptly can test out the alcohol content in the lung deep gas accurately, be beneficial to accurate judgement health status or be beneficial to accurate law enforcement; Studies show that, there is good linear relationship in alcohol concentration in human body lung deep gas and the blood, if but the volume of breath or instantaneous pressure are not enough, what can not guarantee to detect is alcohol content in the lung deep gas, and add vital capacity test function or gas instantaneous pressure measuring ability, the just more volume of accurate recording breath or instantaneous pressure, guarantee that the gas of measuring is the gas in lung deep, make the alcohol content test data of breath reach consistent with alcohol content data in the blood; Number of patent application is " 200910080358.9 ", denomination of invention is " acquisition method of lung deep gas ", the applying date is that the application for a patent for invention on March 19th, 2009 discloses a kind of method of accurate collection lung deep gas and based on the multiple implementation method of this method, detector described in the utility model has been realized the method for being mentioned in the aforementioned patent applications fully;
Detector described in the utility model is simple in structure, stable performance, perfect in shape and function, detection data are accurate, can also can be used for medical institutions' health check-up and family health care as the judgement instrument of administrative law enforcement.
Description of drawings
Fig. 1 is the structured flowchart of detector described in the utility model;
Fig. 2 is the circuit theory diagrams of control circuit described in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of lung gas detecting instrument, this device comprise gas pressure sensor 2, control circuit and the LCD display 4 of trachea 1, connectivity trachea 1, and described control circuit comprises single-chip microcomputer 5, power-supplying circuit 6 and LCD drive circuit 8; Described single-chip microcomputer 5 connects the voltage output end of described power-supplying circuit 6; Described gas pressure sensor 2 connects the voltage output end of described single-chip microcomputer 5 and described power-supplying circuit 6 respectively; Described LCD drive circuit 8 comprises display driver chip, and described display driver chip connects the voltage output end of single-chip microcomputer 5, LCD display 4 and power-supplying circuit 6 respectively; Described trachea 1 one ends are equipped with disposable expiration mouth 10;
The signal output part of gas pressure sensor, promptly the PRESS end is connected to an A/D mouth of single-chip microcomputer, is used to read force value, thereby calculates instantaneous vital capacity or accumulative total vital capacity or instantaneous breath pressure; LCD display is the segment code type liquid crystal display screen, adopts display driver chip HT1621B to drive, and display driver chip HT1621B is the 4*32LCD drive circuit, is the LQFP encapsulation; The CS end of display driver chip HT1621B, WR end, DATA end are connected on the I/O mouth of single-chip microcomputer, make single-chip microcomputer be used to control display driver chip HT1621B, and then drive LCD display;
This device also comprises the alcohol sensor 3 of connectivity trachea, and described alcohol sensor 3 connects the voltage output end of described power-supplying circuit 6; Described control circuit also comprises alcohol sensor sample circuit 7, described alcohol sensor sample circuit comprises resistance R 5, R6, R7 and capacitor C 2, wherein, described resistance R 7 one ends connect the signal output part of described alcohol sensor, described resistance R 7 other ends are used to connect described single-chip microcomputer, and described capacitor C 2 one ends connect described resistance R 7 other ends, described capacitor C 2 other end ground connection, two described resistance R 5, R6 one ends connect described resistance R 7 one ends, two described resistance R 5, R6 other end ground connection; Alcohol sensor SENSOR is the quasiconductor alcohol sensor, and resistance R 5, R6 are the alcohol sensor load matched, and its resistance is adjusted according to the alcohol sensor specification; Resistance R 5, R6, R7 and capacitor C 2 constitute sample circuit, described resistance R 7 other ends, and promptly the SENSOR end is connected on the A/D mouth of single-chip microcomputer, carries out data acquisition;
Described control circuit also comprises the alcohol sensor starting or stopping control circuit, described alcohol sensor starting or stopping control circuit comprises resistance R 11, R12, R13 and audion Q1, wherein, the colelctor electrode of described audion Q1 is connected in series the power ground end that connects described alcohol sensor behind two resistance R 12, the R13 respectively, the grounded emitter of described audion Q1 is used to connect described single-chip microcomputer behind the base stage series resistor R11 of described audion Q1; Resistance R 11, R12, R13 and audion Q1, be used to control the work of alcohol sensor and stop, described resistance R 11 1 ends, be that the INTP3 end is connected on the I/O mouth of single-chip microcomputer, end is 1 if single-chip microcomputer is put INTP3, then alcohol sensor work, end is 0 if single-chip microcomputer is put INTP3, then alcohol sensor quits work.
Described control circuit also comprises voice reminder circuit 9, described voice reminder circuit 9 comprises buzzer, two resistance R 24,27 and audion Q5, wherein, described buzzer one end connects the voltage output end of described power-supplying circuit, the colelctor electrode that connects described audion Q5 behind the described buzzer other end series resistor R24, the grounded emitter of described audion Q5 is used to connect the I/O mouth of described single-chip microcomputer behind the base stage series resistor R27 of described audion Q5; Buzzer is a buzzer, can report to the police prompting by buzzer; Resistance R 24, R27, audion Q5, the I/O mouth of single-chip microcomputer, buzzer buzzer constitutes the voice reminder circuit.
Described control circuit also comprises the LCD display backlight circuit, described LCD display backlight circuit comprises the backlight that is installed on the LCD display, described backlight one end ground connection, the voltage output end of the described power-supplying circuit of connection behind the described backlight other end serial resistance R10; J4 connects backlight, and backlight adopts 3V power supply, 10 metering functions of resistance R.
Described power-supplying circuit comprises set of cells, start button 11, voltage stabilizing chip, three resistance R 8, R21, R22, diode D5 and capacitor C 5; Set of cells adopts No. 7 battery powered of three joints, and every batteries 1.5V, J3 are the battery incoming end, and voltage stabilizing chip IC 4 is 1170 of 3V; Wherein, described set of cells one end ground connection, the described set of cells other end connects diode D5 positive pole, described diode D5 negative pole connects the voltage input end of start button 11 1 ends and voltage stabilizing chip respectively, described start button 11 other ends are series resistor R22 and the resistance R 21 back start and stop control ends that are connected described voltage stabilizing chip successively, described resistance R 8 one ends connect the described start button other end, described resistance R 8 other end ground connection, described capacitor C 5 one ends connect the voltage output end of voltage stabilizing chip, described capacitor C 5) other end ground connection; Capacitor C 5 strobes, and diode D5 plays the reverse protection effect;
Described power-supplying circuit also comprises the Single-chip Controlling power circuit, and described Single-chip Controlling power circuit comprises two resistance R 9, R23, diode D4 and audion Q3; Wherein, connect the described start button other end behind the base stage series resistor R23 of described audion Q3, the grounded emitter of described audion Q3, collector series connection resistance R 9 backs of described audion Q3 connect the voltage output end of described power-supplying circuit, the colelctor electrode of described audion Q3 is used to connect described single-chip microcomputer, described diode D4 positive pole is used to connect described single-chip microcomputer, and described diode D4 negative pole is connected between described resistance R 22 and the described resistance R 21; Diode D4 plays the reverse protection effect; When the start and stop control end of voltage stabilizing chip IC 4 1170, when promptly the CE end was for high level, voltage stabilizing chip IC 4 1170 was started working; During start, press start button S1, the voltage output end of voltage stabilizing chip IC 4 1170, be VOUT end output+3V voltage, then, starting single-chip microcomputer starts working, at this moment, audion Q3 conducting, the then DETECT of single-chip microcomputer end, it is the current collection low level very of described audion Q3, single-chip microcomputer detects DETECT end for just the CE end of single-chip microcomputer being changed to high level after the low level, at this moment, unclamp the button S1 that starts shooting after, because the CE of voltage stabilizing chip IC 4 1170 end is high level, voltage stabilizing chip IC 4 1170 works on; Shutdown is the software shutdown, and single-chip microcomputer puts 0 with the CE end, and then voltage stabilizing chip IC 4 1170 will quit work, and reaches the shutdown purpose;
Described power-supplying circuit also comprises the battery electric quantity testing circuit, described battery electric quantity testing circuit comprises three resistance R 17, R18, R19 and capacitor C 4, wherein, described resistance R 18 1 ends connect described diode D5 negative pole, described resistance R 18 other ends connect described resistance R 17 1 ends and described resistance R 19 1 ends respectively, described resistance R 19 other end ground connection, described resistance R 17 other ends are used to connect described single-chip microcomputer, described capacitor C 4 one ends connect described resistance R 17 other ends, described capacitor C 4 other end ground connection; Resistance R 17, R18, R19 and capacitor C 4 constitute the battery electric quantity measuring ability, wherein, described resistance R 17 other ends, promptly the POWER end is connected on the A/D mouth of single-chip microcomputer, can recognize the electric weight of set of cells by reading this A/D value.
In this utility model, described single-chip microcomputer model is uPD78F9234, is 8 single-chip microcomputers, and there is the FLASH of 8K inside, adopts the 3V power supply; The DATA end of single-chip microcomputer, WR end, CS end are used to control display driver chip HT1621B;
J2 is the DLL of single-chip microcomputer, can be by this interface to mcu programming; The X1 end of single-chip microcomputer, X2 end, RESET end, INTP3 end are connected to DLL J2, are used for single-chip microcomputer is programmed; Simultaneously, resistance R 28 1 terminations+3V, its other end connects the RESET end of single-chip microcomputer, constitutes the reset circuit of single-chip microcomputer, and promptly the RESET of single-chip microcomputer end also can be used for reset circuit; Wherein, the INTP3 of single-chip microcomputer end also can be used to control the Kai Heguan of alcohol sensor; The DETECT end of single-chip microcomputer is used for sense switch, realizes start; PRESS end, the POWER end of single-chip microcomputer are connected on the AD of single-chip microcomputer, and the PRESS of single-chip microcomputer end is pressure sensor signal, and the POWER end of single-chip microcomputer is the battery electric quantity signal, and the SENSOR end of single-chip microcomputer is the alcohol sensor signal.
By the button start, the tested person blows by disposable expiration mouth, and when blowing, the instantaneous pressure of gas pressure sensor accurate recording breath or instantaneous volume reach test accumulative total vital capacity size according to this; Simultaneously or after reaching certain established condition, alcohol sensor begins to test alcoholicity of exhaled gas, and analyzes, and finally calculates alcoholicity of exhaled gas; Test finishes or each breath tester finishes, and aforementioned data is presented on the LCD display;
Number of patent application is " 200910080358.9 ", denomination of invention is " acquisition method of lung deep gas ", the applying date is that the application for a patent for invention on March 19th, 2009 discloses a kind of method of accurate collection lung deep gas and based on the multiple implementation method of this method, detector described in the utility model has been realized the method for being mentioned in the aforementioned patent applications fully.
Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model; Although with reference to preferred embodiment this utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that this utility model asks for protection.
Claims (9)
1, a kind of lung gas detecting instrument is characterized in that: this detector comprises gas pressure sensor, control circuit and the LCD display of trachea, connectivity trachea, and described control circuit comprises single-chip microcomputer, power-supplying circuit and LCD drive circuit; Described single-chip microcomputer connects the voltage output end of described power-supplying circuit; Described gas pressure sensor connects the voltage output end of described single-chip microcomputer and described power-supplying circuit respectively; Described LCD drive circuit comprises display driver chip, and described display driver chip connects the voltage output end of single-chip microcomputer, LCD display and power-supplying circuit respectively.
2, lung gas detecting instrument according to claim 1 is characterized in that: this device also comprises the alcohol sensor of connectivity trachea, and described alcohol sensor connects the voltage output end of described power-supplying circuit; Described control circuit also comprises the alcohol sensor sample circuit, described alcohol sensor sample circuit comprises resistance (R5, R6, R7) and electric capacity (C2), wherein, described resistance (R7) end connects the signal output part of described alcohol sensor, described resistance (R7) other end is used to connect described single-chip microcomputer, described electric capacity (C2) end connects described resistance (R7) other end, described electric capacity (C2) other end ground connection, two described resistance (R5, R6) end connects described resistance (R7) end, two described resistance (R5, R6) other end ground connection.
3, lung gas detecting instrument according to claim 2, it is characterized in that: described control circuit also comprises the alcohol sensor starting or stopping control circuit, described alcohol sensor starting or stopping control circuit comprises resistance (R11, R12, R13) and audion (Q1), wherein, the colelctor electrode of described audion (Q1) is connected in series two resistance (R12 respectively, R13) back connects the power ground end of described alcohol sensor, the grounded emitter of described audion (Q1) is used to connect described single-chip microcomputer behind the base stage series resistor (R11) of described audion (Q1).
4, according to claim 1 or 2 or 3 described lung gas detecting instruments, it is characterized in that: described control circuit also comprises the voice reminder circuit, described voice reminder circuit comprises buzzer, two resistance (R24,27) and audion (Q5), wherein, described buzzer one end connects the voltage output end of described power-supplying circuit, described buzzer other end series resistor (R24) back connects the colelctor electrode of described audion (Q5), the grounded emitter of described audion (Q5) is used to connect described single-chip microcomputer behind the base stage series resistor (R27) of described audion (Q5).
5, according to claim 1 or 2 or 3 described lung gas detecting instruments, it is characterized in that: described control circuit also comprises the LCD display backlight circuit, described LCD display backlight circuit comprises the backlight that is installed on the LCD display, described backlight one end ground connection, described backlight other end serial resistance (R10) back connects the voltage output end of described power-supplying circuit.
6, lung gas detecting instrument according to claim 1, it is characterized in that: described power-supplying circuit comprises set of cells, the start button, the voltage stabilizing chip, three resistance (R8, R21, R22), diode (D5) and electric capacity (C5), wherein, described set of cells one end ground connection, the described set of cells other end connects diode (D5) positive pole, described diode (D5) negative pole connects the voltage input end of start button one end and voltage stabilizing chip respectively, the described start button other end is series resistor (R22) and the back start and stop control end that is connected described voltage stabilizing chip of resistance (R2 1) successively, described resistance (R8) end connects the described start button other end, described resistance (R8) other end ground connection.
7, lung gas detecting instrument according to claim 6, it is characterized in that: described power-supplying circuit also comprises the Single-chip Controlling power circuit, described Single-chip Controlling power circuit comprises two resistance (R9, R23), diode (D4), audion (Q3), wherein, base stage series resistor (R23) back of described audion (Q3) connects the described start button other end, the grounded emitter of described audion (Q3), collector series connection resistance (R9) back of described audion (Q3) connects the voltage output end of described power-supplying circuit, the colelctor electrode of described audion (Q3) is used to connect described single-chip microcomputer, described diode (D4) positive pole is used to connect described single-chip microcomputer, and described diode (D4) negative pole is connected between described resistance (R22) and the described resistance (R21).
8, according to claim 6 or 7 described lung gas detecting instruments, it is characterized in that: described power-supplying circuit also comprises the battery electric quantity testing circuit, described battery electric quantity testing circuit comprises three resistance (R17, R18, R19) and electric capacity (C4), wherein, described resistance (R18) end connects described diode (D5) negative pole, described resistance (R18) other end connects described resistance (R17) end and described resistance (R19) end respectively, described resistance (R19) other end ground connection, described resistance (R17) other end is used to connect described single-chip microcomputer, and described electric capacity (C4) end connects described resistance (R17) other end, described electric capacity (C4) other end ground connection.
9, lung gas detecting instrument according to claim 1 and 2 is characterized in that: described trachea one end is equipped with disposable expiration mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920090003 CN201414799Y (en) | 2009-05-05 | 2009-05-05 | Pulmonary gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920090003 CN201414799Y (en) | 2009-05-05 | 2009-05-05 | Pulmonary gas detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201414799Y true CN201414799Y (en) | 2010-03-03 |
Family
ID=41791209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920090003 Expired - Lifetime CN201414799Y (en) | 2009-05-05 | 2009-05-05 | Pulmonary gas detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201414799Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975843A (en) * | 2010-10-15 | 2011-02-16 | 河南汉威电子股份有限公司 | In-car gas alcohol concentration detection and alarm device |
| CN101536906B (en) * | 2009-05-05 | 2011-05-18 | 河南汉威电子股份有限公司 | Lung gas detecting instrument |
| CN109884137A (en) * | 2019-03-25 | 2019-06-14 | 合肥安聚仪电科技有限公司 | High-precision micro air blowing type alcohol gas detector and its detection system |
-
2009
- 2009-05-05 CN CN 200920090003 patent/CN201414799Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101536906B (en) * | 2009-05-05 | 2011-05-18 | 河南汉威电子股份有限公司 | Lung gas detecting instrument |
| CN101975843A (en) * | 2010-10-15 | 2011-02-16 | 河南汉威电子股份有限公司 | In-car gas alcohol concentration detection and alarm device |
| CN109884137A (en) * | 2019-03-25 | 2019-06-14 | 合肥安聚仪电科技有限公司 | High-precision micro air blowing type alcohol gas detector and its detection system |
| CN109884137B (en) * | 2019-03-25 | 2024-02-06 | 合肥安聚仪电科技有限公司 | High-precision miniature blowing alcohol gas detector and detection system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100303 Effective date of abandoning: 20090505 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100303 Effective date of abandoning: 20090505 |