CN202693510U - Universal biochemical index measuring system - Google Patents
Universal biochemical index measuring system Download PDFInfo
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- CN202693510U CN202693510U CN 201220335295 CN201220335295U CN202693510U CN 202693510 U CN202693510 U CN 202693510U CN 201220335295 CN201220335295 CN 201220335295 CN 201220335295 U CN201220335295 U CN 201220335295U CN 202693510 U CN202693510 U CN 202693510U
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Abstract
The utility model relates to a universal biochemical index measuring system. The system is characterized by comprising an information detection unit, a hardware recognition interface unit, a signal processing unit and a serial communication interface, wherein the information detection unit comprises a sensor and a signal regulation circuit; external biological or chemical quantity concentration is converted into a voltage signal to be output to the signal conditioning circuit by the sensor; the voltage signal is regulated to a voltage range applicable to an analog/digital (A/D) converter and then output to the hardware recognition interface unit by the signal conditioning circuit; the signal processing unit A/D converter and an I/O (Input/Output) interface are connected with the hardware recognition interface unit; and a signal acquired by the sensor is corrected by a processor, then transmitted to a data memory to be stored and output to an upper computer through the serial communication interface. The universal biochemical index measuring system has high universality and a scientific principle, and can obtain an accurate measuring result by plugging any interface.
Description
Technical field
The invention belongs to the robotization detection field, relate to a kind of general biochemical indicator measuring system, have Address Recognition and data correcting function, hyperchannel uses simultaneously but can single channel use separately also, and with inserting with usefulness, the result is accurate.
Background technology
Along with the lifting of national quality and perfecting of legal system, produce, especially need to the be a kind of general Biochemistry measurement in the aspects such as life, supervision law enforcement system, for example the administration for industry and commerce is in the accurately testing result of the on-the-spot science that provides that need to decide on the spot of enforcing the law, to judge food, medicine, whether whether additive exceeds standard the article such as cosmetics, infection pathogen etc.; Also there is same problem in environmental administration, as not providing accurately result then and there, may lose the chance of sanctioning the lawbreaker; Simultaneously, along with scientific research deeply and the development of " fraud " technology, this system should be able to upgrade its correction program at any time, carries out correction calculation.
The problems such as the biological and chemical amount detects and uses in a lot of fields,, usually has a fixation measuring equipment corresponding with it for each fixation measuring object, causes like this equipment complicated, and versatility is poor, and level of integrated system is low; Some equipment can be measured multiple biochemical quantity simultaneously, but on the whole also can only measure definite several amounts, and more emat sensor then can not use, and does not have the real general function that realizes.
Summary of the invention
The technical matters that solves
For fear of the deficiencies in the prior art part, the present invention proposes a kind of general biochemical indicator measuring system, by the Address Recognition effect of hardware identification interface and the data correcting function of signal processing unit, this system's highly versatile, the principle science patches any interface and all can draw accurately measurement result.
Technical scheme
A kind of general biochemical indicator measuring system is characterized in that comprising information detecting unit, hardware identification interface unit, signal processing unit and serial communication interface; Described information detecting unit comprises a plurality of sensors and a plurality of signal conditioning circuits that are connected with sensor, sensor is converted into voltage signal with extraneous biological or chemical amount concentration and exports signal conditioning circuit to, and signal conditioning circuit exports the hardware identification interface unit to after voltage signal is nursed one's health the applicable voltage range of A/D converter; Described hardware identification interface unit comprises an a pair of male and female supporting connector, and wherein male links with a plurality of signal conditioning circuits of information detecting unit, measures address of channel allocation for each biochemical quantity, and female connects signal processing unit; Described signal processing unit comprises A/D converter, processor, ROM cell and I/O interface; A/D converter is connected with the female of I/O interface with the hardware identification interface unit, signal through conversion exports processor to, processor is proofreaied and correct processing to the signal that sensor collects, and then delivers in the data-carrier store storage and exports host computer to by serial communication interface.
The pin number of a described male and female supporting connector comprises one tunnel high level signal line that is connected with signal processing unit, the address wire that multichannel is connected with a plurality of sensors and two-way analog signal line.
Described sensor is bioprobe, physics probe or chemical electrode.
Beneficial effect
A kind of general biochemical indicator measuring system that the present invention proposes, when a plurality of measurement passages use simultaneously, the hardware identification interface can accurately be identified different passages, different measuring passage output voltage signal is sent into signal processing unit carry out correction calculation, and the interface order can be selected arbitrarily; Identify biochemical quantity by the address and measure passage, the rigid line of abandoning tradition connects, and makes biochemical quantity measure the passage species number without limits, therefore can realize real general utility functions (kind is various).Sensor in the described information detecting unit can place same measurand, also can separate as required use.The biochemical quantity species number that the radical of address wire is measured is as required determined.Have the paperless data writing function, can will measure in real time outcome record in processor growth data storer or USB flash disk, be used for data analysis.Serial communication interface is connected with the ipc monitor interface phase, can be implemented in the functions such as line record, processing, analysis data.Each biochemical quantity that need to proofread and correct has the correction equation corresponding with it, and the result of calibrated processing has added the impact of external environment on the basis of original detection limit, make measurement result more scientific, and confidence level is higher.When resolving, adopts the correction equation in the described system existing " Inverse Polish notation " thought, resolve, when advantage is to resolve expression formula, each computing is to occur in sequence by operational symbol, need not indicate order of operation with bracket, so when upgrading correction equation, avoid software to carry out change of overall importance, make that to upgrade at any time correction equation more feasible.
Description of drawings
The general biochemical indicator measuring system of Fig. 1 structural drawing;
Fig. 2 hardware identification interface unit;
Fig. 3 data flow diagram;
Fig. 4 method flow diagram
Embodiment
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
The structure of present embodiment as shown in Figure 1, mainly by information detecting unit, hardware identification interface unit and signal processing unit and serial communication interface, serial communication interface should be invented with host computer and connect.
Wherein information detecting unit comprises a plurality of sensors and a plurality of signal conditioning circuits that are connected with sensor, sensor is converted into voltage signal with extraneous biological or chemical amount concentration and exports signal conditioning circuit to, and signal conditioning circuit exports the hardware identification interface unit to after voltage signal is nursed one's health the applicable voltage range of A/D converter; Variation by the extraneous biological or chemical amount of sensor senses concentration, the variation of this biochemical quantity concentration is converted into the power variation of voltage signal, the signal conditioning circuit of corresponding voltage signal through being comprised of low-pass filtering, amplitude conditioning and impedance matching unit can obtain clearly analog voltage signal with it.
Information detecting unit comprises that described hardware identification interface unit comprises an a pair of male and female supporting connector, wherein male links with a plurality of signal conditioning circuits of information detecting unit, measure address of channel allocation for each biochemical quantity, female connects signal processing unit; Hardware identification interface unit fundamental purpose is to measure address of channel allocation for each biochemical quantity, makes it have identifiability.Its detailed construction is measured passage 5 as example take biochemical quantity as shown in Figure 2, connects No. 5 biochemical quantities on No. 5 hardware identification interfaces and measures passage, and the lower information process unit that connects is by male with female is common supporting consists of.
Male comprises two from signal wire S1 and the S0 of biochemical quantity measurement passage, and 3 biochemical quantity measurement channel address line A2, A1, A0(hypothesis have 8 biochemical quantities to measure passages), and a shorting stub A.Biochemical quantity is measured the address of passage, also can say the value of hardware identification interface, and 8 the scale-of-two amounts 000,001,010,011,100,101,110,111 that are comprised of A2A1A0 represent that the corresponding biochemical quantity in each address is measured passage.The Digital Logic supply voltage Vdd of the corresponding female of shorting stub A short circuit.For passage 5, its address wire A2 is connected with shorting stub A with A0, the address is by 101 expressions.
Female 222, comprising A/D signal wire INi(INi is the A/D converter input signal cable) and simulation ground Vss, 3 I/O line I/O.a, I/O.b, I/O.cs corresponding with the male address wire, and Digital Logic supply voltage Vdd.3 I/O lines are corresponding with the address signal line in the male, identify different biochemical quantities and measure passage.
The difference of different passages is male, and the female of all passages all is the same, thus as long as in software, distribute the data processor corresponding with the address, just can realize patching arbitrarily, and show the measurement result of correct science.
It is relevant with the I/O interface with A/D ALT-CH alternate channel number that maximum simultaneously-measured biochemical quantities are measured number of active lanes.
The male of hardware identification interface unit is introduced the interference that digital logic high levels can be avoided outer signal from signal processing unit, particularly prevents the external power source sudden change and the microcontroller that causes damages.
Signal processing unit in the present embodiment mainly comprises processor, data-carrier store, ROM expanding element, emulation interface, I/O interface and A/D converting unit, pilot lamp, button, LCD display unit and power supply; Wherein, data-carrier store can be RAM expansion on the plate, also can be USB flash disk, with collection in worksite to data take the laboratory to and analyze; When showing that data are more simultaneously, button is used for the page turning of display.In I/O interface and the A/D converting unit, the I/O unit can be the I/O pin of processor self, also can be the pin of I/O extended chip, on connect the female in the hardware identification interface unit No. 5; The A/D converting unit is hyperchannel A/D conversion chip, and its A/D port number has directly determined the passage number in the information detecting unit, and the corresponding biochemical quantity of each A/D ALT-CH alternate channel is measured passage.
A/D converter is connected with the female of I/O interface with the hardware identification interface unit, signal through conversion exports processor to, processor is proofreaied and correct processing to the signal that sensor collects, and then delivers in the data-carrier store storage and exports host computer to by serial communication interface.
Host computer for this system development is analyzed monitoring of software, by communication unit, this system and host computer is carried out communication.The serial communication unit is comprised of communication interface chip and universal serial bus, and universal serial bus is selected CAN, certainly according to circumstances also can select RS-422, RS-485 etc.By host computer can analysis data, the function such as report generation.
This invention in, the data stream cardon as shown in Figure 3, the signal processing unit of provided with processor is processed, is proofreaied and correct the signal that sensor collects, and then delivers in the data-carrier store and stores, and directly shown by LCD display; Certainly, if system is connected in PC, can directly carry out the online record analysis so.
In addition, this general biochemical indicator measuring system has data correcting function, so that measurement result is more scientific, its form is:
y′
m＝f(x
1,x
2...x
n,y
m)
Wherein: the biochemical quantity that the n representative does not need to proofread and correct is measured channel address, is positive integer; The biochemical quantity that the m representative needs to proofread and correct is measured channel address, is positive integer; x
nFor the biochemical quantity that does not need to proofread and correct is measured the passage detection limit; y
mFor the biochemical quantity that needs are proofreaied and correct is measured the passage detection limit; Y '
mBe calibrated biochemical quantity.
Resolving this equation can proofread and correct biochemical quantity, makes the result more scientific accurately.When resolving this equation, adopt the thought of " Inverse Polish notation ", process flow diagram as shown in Figure 4, advantage is: when resolving postfix expression, need not consider especially the priority of operations problem that wherein caused by bracket and operational symbol, computing is carried out according to the order that operational symbol occurs, and this has just made things convenient for when upgrading up-to-date correction equation, avoids changing on a large scale application software.
This general biochemical indicator measuring system can automatically detect each online biochemical quantity and measure channel address after powering on, carry out matching judgment, if comprise this address in the correction equation, then send correction equation to carry out correction calculation this address respective channel detection limit; As not comprising, then directly measure conversion, send storage and demonstration.
Claims (3)
1. a general biochemical indicator measuring system is characterized in that comprising information detecting unit, hardware identification interface unit, signal processing unit and serial communication interface; Described information detecting unit comprises a plurality of sensors and a plurality of signal conditioning circuits that are connected with sensor, sensor is converted into voltage signal with extraneous biological or chemical amount concentration and exports signal conditioning circuit to, and signal conditioning circuit exports the hardware identification interface unit to after voltage signal is nursed one's health the applicable voltage range of A/D converter; Described hardware identification interface unit comprises an a pair of male and female supporting connector, and wherein male links with a plurality of signal conditioning circuits of information detecting unit, measures address of channel allocation for each biochemical quantity, and female connects signal processing unit; Described signal processing unit comprises A/D converter, processor, ROM cell and I/O interface; A/D converter is connected with the female of I/O interface with the hardware identification interface unit, signal through conversion exports processor to, processor is proofreaied and correct processing to the signal that sensor collects, and then delivers in the data-carrier store storage and exports host computer to by serial communication interface.
2. described general biochemical indicator measuring system according to claim 1, it is characterized in that: the pin number of a described male and female supporting connector comprises one tunnel high level signal line that is connected with signal processing unit, the address wire that multichannel is connected with a plurality of sensors and two-way analog signal line.
3. described general biochemical indicator measuring system according to claim 1, it is characterized in that: described sensor is bioprobe, physics probe or chemical electrode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220335295 CN202693510U (en) | 2012-07-11 | 2012-07-11 | Universal biochemical index measuring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220335295 CN202693510U (en) | 2012-07-11 | 2012-07-11 | Universal biochemical index measuring system |
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| CN202693510U true CN202693510U (en) | 2013-01-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749358A (en) * | 2012-07-11 | 2012-10-24 | 西北工业大学 | Universal biochemical index measuring system |
| CN106931717A (en) * | 2017-03-21 | 2017-07-07 | 合肥美的电冰箱有限公司 | Gear conversion equipment and refrigerating plant |
| CN107024515A (en) * | 2017-05-23 | 2017-08-08 | 北京康智乐思网络科技有限公司 | A kind of saliva impedance detection device and equipment |
-
2012
- 2012-07-11 CN CN 201220335295 patent/CN202693510U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749358A (en) * | 2012-07-11 | 2012-10-24 | 西北工业大学 | Universal biochemical index measuring system |
| CN106931717A (en) * | 2017-03-21 | 2017-07-07 | 合肥美的电冰箱有限公司 | Gear conversion equipment and refrigerating plant |
| CN106931717B (en) * | 2017-03-21 | 2019-09-27 | 合肥美的电冰箱有限公司 | Gear conversion equipment and refrigerating plant |
| CN107024515A (en) * | 2017-05-23 | 2017-08-08 | 北京康智乐思网络科技有限公司 | A kind of saliva impedance detection device and equipment |
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Granted publication date: 20130123 Termination date: 20150711 |
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| EXPY | Termination of patent right or utility model |