CN102860831A - Uterine contraction pressure monitoring system and dynamic pressure calibrating method thereof - Google Patents
Uterine contraction pressure monitoring system and dynamic pressure calibrating method thereof Download PDFInfo
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- CN102860831A CN102860831A CN2012103208248A CN201210320824A CN102860831A CN 102860831 A CN102860831 A CN 102860831A CN 2012103208248 A CN2012103208248 A CN 2012103208248A CN 201210320824 A CN201210320824 A CN 201210320824A CN 102860831 A CN102860831 A CN 102860831A
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Abstract
The invention relates to a uterine contraction pressure monitoring system and a dynamic pressure calibrating method thereof. The conventional uterine contraction pressure measuring system has a calibrating function, calibration data generated during delivery are set internally, wear is caused along with the use of an apparatus, and original calibration data are inconsistent with the calibration requirement of the current stage, so that the problems of inaccurate measurement and the like are caused. The uterine contraction pressure monitoring system disclosed by the invention comprises a pressure sensing device and a pressure monitoring system, wherein the output of the pressure sensing device is connected to the pressure monitoring system through a transmission lead. According to the method disclosed by the invention, a pressure sensor device is connected to the pressure monitoring system, and an A/D (Analog to Digital) value which corresponds to a calibrated pressure value is stored dynamically according to prompting operation of a pressure calibrating menu, so that pressure calibration is realized, new calibration data can be stored once again for calibrating once again when a measuring reference point of the apparatus changes, and the apparatus is more suitable for practical application. Compared with set measurement calibration data, data obtained by the uterine contraction pressure monitoring system have the advantages of higher adaptability and higher practical value.
Description
Technical field
The invention belongs to technical field of medical instruments, relate to a kind of uterine contraction pressure monitor system and Dynamic pressure calibration method thereof.
Background technology
No matter be premature labor or miscarriage, anemia of pregnant woman's uterine contraction all plays very important effect therein.Therefore, find that early uterine contraction is of great significance for diagnosis morning, prevention morning, the early treatment tool of premature labor and threatened abortion.And judge that the main foundation that the anodinia situation is arranged is exactly the monitoring to uterine contraction pressure, can accurately obtain force value in the uterine contraction pressure monitoring be crucial with getting.Domestic and international many advanced persons' uterine contraction pressure monitoring intelligence instrument not only has higher performance indications at aspects such as certainty of measurement and sampling rates at present, and many distinctive features are also being arranged aspect the friendly of man-machine interaction.Most uterine contraction pressure-measuring system all has calibration function, but its operation is generally with regard to a button, inside solidification the calibration data when dispatching from the factory, but cause wearing and tearing along with the use of instrument, calibration data has not originally often met the alignment requirements of present stage, thereby the problems such as inaccurate occur measuring.So, design and a kind ofly can in user's use procedure, find to measure when inaccurate, can also again revise at any time the calibration value of calibration point, again download new calibration driver and need not bring back producer, do not need to turn over to tear instrument open yet, only need several simple experimental procedures just can finish.Therefore, a kind of implementation method of Dynamic pressure calibration of uterine contraction pressure monitor system become the outer industrial intelligent instrument production firm of Now Domestic in the urgent need to.
Summary of the invention
The object of the present invention is to provide a kind of uterine contraction pressure monitor system and Dynamic pressure calibration method thereof, be intended to solve because instrument causes wearing and tearing service time for a long time, so that the uterine contraction pressure of systematic survey is inaccurate, tear the loaded down with trivial details and high problem of calibration cost of machine calibration open.
Uterine contraction pressure monitor system of the present invention comprises pressure sensor device and pressure monitoring system.The output of described pressure sensor device is connected to pressure monitoring system by transfer wire.
Described pressure sensor device comprises pressure transducer, circular circuit board and signal transmssion line.Three the same pressure transducers of model are welded on the circular circuit board, its layout is centered by the center of circle of circular circuit board, make up equilateral triangle, three summits are the set-point of sensor, and mark center small circle diameter is 2cm in circular circuit board making simultaneously.Draw by signal transmssion line after the output of three sensors is cumulative.
Described pressure monitoring system comprises power-supply controller of electric, display lamp, signal conditioner, microcontroller, real-time clock module, memorizer, bluetooth module, LCDs and key-press module.Signal conditioner, real-time clock module, memorizer, bluetooth module LCDs and key-press module all are connected to the control that microcontroller is subjected to microcontroller.The electric power thus supplied of the whole pressure monitoring system of power controller controls, display lamp are connected on power-supply controller of electric and the bluetooth module, indication mechanism electrifying condition, battery charge condition and bluetooth working condition.Described key-press module comprises five buttons, is respectively: mode key, upwarding key, down Arrow, determine key and positioning key.Key-press module and LCDs make up friendly human-computer interaction interface jointly.
Utilizing above-mentioned uterine contraction pressure monitor system to carry out the Dynamic pressure calibration method may further comprise the steps:
Step 1. is connected to pressure monitoring system with pressure sensor device.
Step 2. opening power controller switches, open system by the man-machine interaction menu, enters the pressure calibration submenu.
Step 3. is in the pressure calibration process, carry out the method for the even calibrating instrument of fixed point, select the force value of demarcation, in the roundlet of circular circuit board center, put into the counterweight of dimension by prompting, treat to determine when corresponding A/D value stabilization is constant calibration operation, be about to the corresponding A/D value of current pressure value and be written in the EEPROM nonvolatile memory, if write successfully, then show " OK ", otherwise show " ER ", if write failure, then again operate, until show " OK ".
Step 4. has all passed through to write calibration when the force value of all fixed points, processes by the calibration algorithm to fixed point, and then the normal runnable interface of retrieval system can be seen the correct force value of instrument display after the calibration.
Beneficial effect of the present invention:
General uterine contraction pressure monitor system program Solidification calibration data before dispatching from the factory, thereby the operation that the user can't make amendment again.And device involved in the present invention and Dynamic pressure calibration method thereof can dynamic access pressure calibration fixed points, namely can make amendment to calibration value, without the calibration driver behind the down loading updating again after producer's collection apparatus, thereby realization dynamic calibration, and simple to operate, user oneself just can remodify the calibrate point, has better adaptive capacity and higher practical value, really accomplishes to allow the user satisfied.
Description of drawings
Fig. 1 is uterine contraction pressure monitor system block diagram;
Fig. 2 is pressure calibration structured menu block diagram;
Fig. 3 is pressure calibration operation submenu interface display figure.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage more clear, below in conjunction with drawings and Examples, the present invention is further elaborated, be to be understood that, specific embodiment described herein only is used for explaining the present invention, is not intended to limit the present invention.
Fig. 1 is uterine contraction pressure monitor system block diagram, and this uterine contraction pressure monitor system comprises: pressure sensor device 2 and pressure monitor system 1.
Described pressure sensor device 2 comprises that pressure transducer 5.1, pressure transducer 5.2, pressure transducer 5.3, circular circuit board 5 and signal transmssion line 7 form.Three the same pressure transducer 5.1, pressure transducer 5.2, pressure transducers 5.3 of model all are welded on the circular circuit board, its layout requires centered by the center of circle of circular circuit board, make up equilateral triangle, three summits are the set-point of sensor, and mark center small circle 6 diameters probably are 2cm in circular circuit board making simultaneously.The output of three sensors is all drawn the signal conditioner 13 of giving pressure monitoring system 1 with signal transmssion line 7.
Described pressure monitoring system 1 comprises power-supply controller of electric 8, display lamp 3, signal conditioner 13, microcontroller 9, real-time clock module 10, memorizer 11, bluetooth module 12, LCDs 14 and key-press module 4.Signal conditioner 13, real-time clock module 10, memorizer 11, bluetooth module 12, LCDs 14 and key-press module 4 all are connected to the control that microcontroller 9 is subjected to microcontroller 9.The electric power thus supplied of the whole pressure monitoring system 1 of power-supply controller of electric 8 controls, display lamp 3 is connected on power-supply controller of electric 8 and the bluetooth module 12, indication mechanism electrifying condition, battery charge condition and bluetooth working condition.Described key-press module 4 comprises five buttons, from left to right is respectively: mode key 4.1, upwarding key 4.2, down Arrow 4.3, determine key 4.4 and positioning key 4.5.Key-press module 4 makes up friendly human-computer interaction interface jointly with LCDs.
Fig. 2 is pressure calibration structured menu block diagram, can select the one-level menu by pattern 4.1 keys, by determining that key 4.4 can enter pressure calibration one-level submenu, can select the nominal pressure value by positioning key 4.5, again by determining that key 4.4 can write the corresponding A/D value of nominal pressure value.
Fig. 3 is pressure calibration circle operation submenu interface display figure, with reference to Fig. 1,2,3 in detail the Dynamic pressure calibration implementation method is described in detail, and its operating procedure is as follows:
(1) pressure sensor device 2 is connected to control pressurer system 1.
(2) opening power controller switches, open system by the man-machine interaction menu, enters the pressure calibration submenu.
(3) in the pressure calibration process, carry out the method for the even calibrating instrument of fixed point, interface prompt according to a among Fig. 3, at first select the force value of demarcation by location button 4.5, then in the roundlet of the circular circuit board center of sensor device, put into the counterweight of dimension, treat to press when corresponding A/D value almost stable is constant and determine key 4.4, then the corresponding A/D value of current pressure value is written in the EEPROM nonvolatile memory, if write successfully, then can show such as the b lower right corner among Fig. 3 " OK ", if write failure, then can show " ER " such as the c lower right corner among Fig. 3, when writing unsuccessfully, then to again operate, until prompting " OK ".
(4) demarcate what a point after, select next fixed point, the operation of repeating step (3) by positioning key 4.5.
(5) all passed through to write calibration when the force value of all fixed points, program is processed by the calibration algorithm to fixed point, and then the normal runnable interface of retrieval system can be seen the correct force value of instrument display after the calibration.
As embodiments of the invention, described fixed point force value comprises 0g, 50g, 100g, 150g, 200g, 250g, 300g, 350g, 400g, 450g, the 500g proving operation of totally 11 points.
As embodiments of the invention, the calibration algorithm of described fixed point is the broken line interpolation algorithm.
As embodiments of the invention, finish the experiment calibration of pressure after, pressure sensor apparatus 2 usefulness belts are fixed (position at general place, uterus) on the belly that ties up to the anemia of pregnant woman, can carry out clinical uterine contraction stress test.When the uterine contraction force value of using of a specified duration to recruit wearing and tearing to cause system to measure when instrument is inaccurate, only need the simple circular circuit board 5 that takes out in the pressure sensor apparatus 2, implementation step according to above-described Dynamic pressure calibration method, the demarcation that system carries out is again calibrated, until measure accurately.
Below by reference to the accompanying drawings the specific embodiment of the present invention is described; but these explanations can not be understood to limit scope of the present invention; protection scope of the present invention is limited by the claims of enclosing, and any change on claim of the present invention basis all is protection scope of the present invention.
Claims (5)
1. a uterine contraction pressure monitor system is characterized in that: comprise pressure sensor device and pressure monitoring system; The output of described pressure sensor device is connected to pressure monitoring system by transfer wire;
Described pressure sensor device comprises pressure transducer, circular circuit board and signal transmssion line; Three the same pressure transducers of model are welded on the circular circuit board, its layout makes up equilateral triangle centered by the center of circle of circular circuit board, three summits are the set-point of sensor, in circular circuit board making, mark center small circle diameter is 2cm simultaneously; Draw by signal transmssion line after the output of three sensors is cumulative;
Described pressure monitoring system comprises power-supply controller of electric, display lamp, signal conditioner, microcontroller, real-time clock module, memorizer, bluetooth module, LCDs and key-press module; Signal conditioner, real-time clock module, memorizer, bluetooth module LCDs and key-press module all are connected to the control that microcontroller is subjected to microcontroller; The electric power thus supplied of the whole pressure monitoring system of power controller controls, display lamp are connected on power-supply controller of electric and the bluetooth module, indication mechanism electrifying condition, battery charge condition and bluetooth working condition; Described key-press module comprises five buttons, is respectively: mode key, upwarding key, down Arrow, determine key and positioning key; Key-press module and LCDs make up friendly human-computer interaction interface jointly.
2. utilize uterine contraction pressure monitor system claimed in claim 1 to carry out the Dynamic pressure calibration method, it is characterized in that said method comprising the steps of:
Step 1. is connected to pressure monitoring system with pressure sensor device;
Step 2. opening power controller switches, open system by the man-machine interaction menu, enters the pressure calibration submenu;
Step 3. is in the pressure calibration process, carry out the method for the even calibrating instrument of fixed point, select the force value of demarcation, in the roundlet of circular circuit board center, put into the counterweight of dimension by prompting, treat to determine when corresponding A/D value stabilization is constant calibration operation, be about to the corresponding A/D value of current pressure value and be written in the EEPROM nonvolatile memory, if write successfully, then show " OK ", otherwise show " ER ", if write failure, then again operate, until show " OK ";
Step 4. has all passed through to write calibration when the force value of all fixed points, processes by the calibration algorithm to fixed point, and then the normal runnable interface of retrieval system can be seen the correct force value of instrument display after the calibration.
3. pressure calibration method according to claim 2, it is characterized in that: carry out the method for the even calibrating instrument of fixed point in the step 3, its force value is selected 0g, 50g, 100g, 150g, 200g, 250g, 300g, 350g, 400g, 450g, the 500g proving operation of totally 11 points.
4. pressure calibration method according to claim 2, it is characterized in that: the calibration algorithm of described fixed point is the broken line interpolation algorithm.
5. pressure calibration method according to claim 2 is characterized in that, when the uterine contraction force value of using of a specified duration to recruit wearing and tearing to cause system to measure when instrument is inaccurate, only need to take out circular circuit board, according to the pressure calibration method, the demarcation that system carries out is again calibrated, until measure accurately.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103315745A (en) * | 2013-07-17 | 2013-09-25 | 深圳市理邦精密仪器股份有限公司 | Intelligent pressure return-to-zero method and system |
| CN105231996A (en) * | 2015-10-09 | 2016-01-13 | 深圳市理邦精密仪器股份有限公司 | Method and device for realizing automatic clearing of uterine contraction pressure |
| CN108414353A (en) * | 2018-01-15 | 2018-08-17 | 沈阳兴华航空电器有限责任公司 | Force-sensing circuit |
| CN110672263A (en) * | 2019-09-02 | 2020-01-10 | 南京理工大学 | Shock wave pressure sensor field calibration device and method |
| CN114344806A (en) * | 2022-01-17 | 2022-04-15 | 上海电气智能康复医疗科技有限公司 | Weight calibration system and method and balance training equipment |
| CN115474902A (en) * | 2022-09-30 | 2022-12-16 | 山东大学 | Human body pressure threshold detection device and detection method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103315745A (en) * | 2013-07-17 | 2013-09-25 | 深圳市理邦精密仪器股份有限公司 | Intelligent pressure return-to-zero method and system |
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| CN108414353A (en) * | 2018-01-15 | 2018-08-17 | 沈阳兴华航空电器有限责任公司 | Force-sensing circuit |
| CN110672263A (en) * | 2019-09-02 | 2020-01-10 | 南京理工大学 | Shock wave pressure sensor field calibration device and method |
| CN114344806A (en) * | 2022-01-17 | 2022-04-15 | 上海电气智能康复医疗科技有限公司 | Weight calibration system and method and balance training equipment |
| CN115474902A (en) * | 2022-09-30 | 2022-12-16 | 山东大学 | Human body pressure threshold detection device and detection method |
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| CN102860831B (en) | 2014-04-02 |
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Effective date of registration: 20150421 Address after: 314200, No. 988, No. two, Pinghu Economic Development Zone, Zhejiang, Jiaxing Patentee after: Pinghu Huizhi Mdt InfoTech Ltd Address before: Hangzhou City, Zhejiang province 310018 Xiasha Higher Education Park No. 2 street Patentee before: Hangzhou Electronic Science and Technology Univ |