CN104615098A - System-on-chip based intelligent measuring and control system of lower computer - Google Patents

System-on-chip based intelligent measuring and control system of lower computer Download PDF

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Publication number
CN104615098A
CN104615098A CN201410741245.XA CN201410741245A CN104615098A CN 104615098 A CN104615098 A CN 104615098A CN 201410741245 A CN201410741245 A CN 201410741245A CN 104615098 A CN104615098 A CN 104615098A
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China
Prior art keywords
circuit
signal
input
chip
signal output
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CN201410741245.XA
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Chinese (zh)
Inventor
蔡泳
陶世宏
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CHONGQING NANFANG NUMERICAL CONTROL EQUIPMENT Co Ltd
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CHONGQING NANFANG NUMERICAL CONTROL EQUIPMENT Co Ltd
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Priority to CN201410741245.XA priority Critical patent/CN104615098A/en
Publication of CN104615098A publication Critical patent/CN104615098A/en
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423Input/output
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The invention provides a system-on-chip based intelligent measuring and control system of a lower computer. The system is that the input end of a digital input photoelectric isolating circuit inputs a material level input signal of a full-automatic blood viscosity dynamic analyzer, and while the output end of the digital input photoelectric isolating circuit is connected with a digital signal input end of a single-chip microcomputer; a pressure signal output end of a pressure sensor is amplified through an amplifier and then is connected to the pressure signal input end of the single-chip machine; the digital signal output end of the single-chip microcomputer is connected with the signal input end of a digital output photoelectric isolating circuit, and while the signal output end of the digital output photoelectric isolating circuit is connected with the signal input end of a multifunctional drive and interference suppression circuit; the signal output end of the multifunctional drive and interference suppression circuit is connected with a stepping motor; the thomas pump signal output end of the multifunctional drive and interference suppression circuit is connected with the thomas pump signal input end; the solenoid valve and water pump signal output end of the thomas pump signal output end is connected with the solenoid valve and water pump signal input end.

Description

A kind of slave computer intelligent observing and controlling system based on SOC (system on a chip)
Technical field
The present invention relates to medical appliance field, particularly relate to a kind of slave computer intelligent observing and controlling system based on SOC (system on a chip).
Background technology
At present, known slave computer intelligent observing and controlling system does not have the single-chip microcomputer of SOC (system on a chip) SOC of 16 high-precision adcs, 1Msps high sampling rate, rapid, high volume data transmission USB interface simultaneously, although there is the intelligent observing and controlling system that uses RS232 to turn USB bridge can not meet by the restriction of RS232 interface communication ability the needs that rapid, high volume data transmit.
In addition, in present known slave computer intelligent observing and controlling system, amplifier adopts potentiometer to regulate enlargement factor and offset voltage, very complicated; Amplifier adopts single photoelectric isolation technology to suppress electromagnetic interference (EMI), and isolation effect is bad; Thomas's pump adopts open-loop control technology, is unfavorable for the state monitoring Thomas's pump in real time.
Summary of the invention
The present invention is intended at least solve the technical matters existed in prior art, especially innovatively proposes a kind of slave computer intelligent observing and controlling system based on SOC (system on a chip).
In order to realize above-mentioned purpose of the present invention, the invention provides a kind of slave computer intelligent observing and controlling system based on SOC (system on a chip), its key is, comprise: single-chip microcomputer 1, numeral input photoelectric isolating circuit 4, pressure transducer 6, digital output photoelectric buffer circuit 11, multi-functional driving and codan 12, stepper motor 13, Thomas's pump 14 and water pump 15
The thing bit digital input signal of numeral input photoelectric isolating circuit 4 input end input fully automatic blood viscosity kinetic analyzer, described numeral input photoelectric isolating circuit 4 output terminal connects single-chip microcomputer 1 digital signal signal input part, pressure transducer 6 signal output end connects single-chip microcomputer 1 pressure signal input end after amplifier 7 amplifies, single-chip microcomputer 1 digital signal output end connects digital output photoelectric buffer circuit 11 signal input part, described digital output photoelectric buffer circuit 11 signal output part connects multi-functional driving and codan 12 signal input part, described multi-functional driving is connected stepper motor 13 with codan 12 motor signal output terminal, described multi-functional driving is connected Thomas's pump signal input part with codan 12 Thomas pump signal output part, described multi-functional driving and codan 12 solenoid valve and water pump signal output terminal connected electromagnetic valve and water pump signal input end.
The described slave computer intelligent observing and controlling system based on SOC (system on a chip), preferably, also comprise input nonlinearities and suppress circuit 3, described input nonlinearities suppresses circuit 3 one end to connect the thing bit digital input signal of input fully automatic blood viscosity kinetic analyzer, and described input nonlinearities suppresses circuit 3 other end to connect numeral input photoelectric isolating circuit 4 one end.
The described slave computer intelligent observing and controlling system based on SOC (system on a chip), preferably, also comprises follower circuit 5, and described follower circuit 5 signal input part connects single-chip microcomputer 1 follower circuit signal output part.
The described slave computer intelligent observing and controlling system based on SOC (system on a chip), preferably, also comprises amplifier 7, and pressure transducer 6 signal output end connects amplifier 7 signal input part, and described amplifier 7 signal output part connects single-chip microcomputer 1 pressure signal input end.
The described slave computer intelligent observing and controlling system based on SOC (system on a chip), preferably, also comprise solenoid valve, described solenoid valve is connected to water pump water outlet control end, for opening and closing water pump.
The described slave computer intelligent observing and controlling system based on SOC (system on a chip), preferably, also comprises bus extension circuit 8 and usb circuit 9,
Described bus extension circuit 8 data-signal transmission ends connects single-chip microcomputer 1 data output end, and described bus extension circuit 8 data-signal transmission ends connects usb circuit 9 data-signal transmission ends.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
By the work of above-mentioned intelligent observing and controlling system, realize the data acquisition to slave computer and data transmission, easy to use, save cost.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the slave computer intelligent observing and controlling system schematic diagram that the present invention is based on SOC (system on a chip).
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
As shown in Figure 1, below in conjunction with drawings and Examples, the invention will be further described:
1, SOC single-chip microcomputer
For the present situation of single-chip microcomputer of SOC (system on a chip) SOC owing to not having 16 high-precision adcs, 1Msps high sampling rate, USB interface simultaneously, first have selected the single-chip microcomputer C8051F06X of SOC (system on a chip) SOC with 16 high-precision adcs, 1Msps high sampling rate.
Completely inegrated circuit mixed signal SOC (system on a chip) System On Chip, be called for short the single-chip microcomputer C8051F06X of SOC (system on a chip) SOC with 16 high-precision adcs, 1Msps high sampling rate that U.S. SL (Silicon Laboratories) company selected by SOC single-chip microcomputer, this chip also has 12 DAC, jtag interface, 8051 microcontroller core at a high speed, nearly 64 I/O mouths, the functions such as configurable CAN, SMBus, SPI, UART communication interface are representational SOC single-chip microcomputers.
Printed board design has been paid special attention to crystal oscillator as far as possible near chip, distance is less than 10mm and property-line shielding around.
2 digital input signals.Various digital input signals is mainly from various position transducer.
3 input nonlinearities suppress circuit.Because various position transducer distant-control system comparatively far the most easily picks up interference, this control system is taked to use transient voltage suppressor diode, and the low-pass filter that magnetic bead and sheet capacitor are formed forms input nonlinearities and suppresses circuit.
4 numeral input photoelectric isolating circuits.Can effectively disturb and high internal resistance undesired signal by filtering common mode, available protecting SOC single-chip microcomputer.The output of numeral input photoelectric isolating circuit is connected to the P5 mouth of SOC single-chip microcomputer.
5 follower circuits.The DAC that can isolate SOC single-chip microcomputer exports with load circuit and increases driving force.
6 pressure transducers.Adopt the pressure transducer MPX5010 that FREESCALE company of the U.S. produces as required, if pressure is Px, transducer sensitivity is K, and sensor offset voltage is Voff sensor output voltage is Vx:
Vx=K*Px+K5 1
For selected sensor, K and Voff is constant, and Px is variable, and 1 formula is a typical linear equation.
7 amplifiers. the rail-to-rail four-operational amplifier TLV2254 that amplifier adopts American TI Company to produce.16 high-precision adcs of SOC single-chip microcomputer are sent after the output signal of pressure transducer being amplified.The present invention does not use potentiometer to regulate enlargement factor and offset voltage and uses Standard graduation conversion and directly calculate force value according to the corresponding algorithm of this intelligent observing and controlling system original creation proposition.Concrete grammar is as follows: set pressure as 0 time the data of adopting be D0, if the data of adopting when pressure is full scale Pfs are Dfs, if the data of adopting when unknown pressure to be measured is Px are Dx, because 1 formula is that a typical linear equation can be derived unknown pressure P x to be measured and can be calculated by following formula:
Px=(Dx-D0)*Pfs/(Dfs-D0) 2
Use Standard graduation conversion and propose corresponding algorithm according to the original creation of this intelligent observing and controlling system and make that debugging is convenient, the debugging operations level that reliably do not rely on operator, measuring accuracy are also higher.
8 bus extension circuit.The external latch of P4, P6, P7 mouth of SOC single-chip microcomputer, decoder circuit is used to form AB, DB, CB tri-bus extension circuit.
9USB interface circuit.Three bus extension circuit mount the usb circuit CH372 that Nanjing Qin Yuan company produces, makes this slave computer intelligent observing and controlling system based on SOC (system on a chip) SOC single-chip microcomputer have the performance of 16 high-precision adcs, 1Msps high sampling rate, USB interface simultaneously.USB interface carries out communication with the computing machine as host computer.
10 programmable multifunctional interfaces.By software, programmable multifunctional interface configuration can be become the functions such as CAN, SMBus, SPI, UART communication interface and counter timer as required.
11 digital output photoelectric buffer circuits.The TLP281-4GB that photoelectric isolating circuit adopts Toshiba Corp to produce.The input signal of numeral output photoelectric buffer circuit, from the P3-P5 mouth of SOC single-chip microcomputer, is isolated digital output photoelectric, driving circuit can be prevented the interference of SOC single-chip microcomputer.
12 multi-functional driving and codans.Multifunction drive circuit comprises stepper motor driver, driver, solenoid valve and water pump driver.
Wherein uniqueness innovatively Thomas's pump driver, because Thomas's pump cannot not add speed pickup so be to realize closed-loop control in principle yet, present invention utilizes the periodically variable feature of Thomas's pump load, tach signal is obtained from periodically variable drive current, by Thomas's pump control technology by the closed loop monitoring technique adopting open-loop control technology to be improved to original creation, Thomas's pump work state can be monitored in real time, regulable control voltage, ensures the normal work of Thomas's pump.
Codan in multi-functional driving is that the output terminal of whole driving circuit is all designed with AF panel diode, adopts twisted-pair feeder to drive load.
The compound Anti-Jamming Technique adopted in sum has:
The method improving electromagnetic susceptibility (EMS) is: the MSMP series transient voltage suppressor diode using VISHAY company of the U.S. to produce, the MMZ series magnetic bead that TDK company of Japan produces and the low-pass filter that sheet capacitor is formed form input nonlinearities and suppress circuit, numeral input photoelectric isolating circuit.
(EMI) method reducing electromagnetic interference (EMI) is: use digital output photoelectric buffer circuit, the output terminal of whole driving circuit is all designed with AF panel diode, adopts twisted-pair feeder to drive load.Printed board design has been paid special attention to crystal oscillator as far as possible near chip, distance is less than 10mm and property-line shielding around.
Well-known Electro Magnetic Compatibility EMC comprises (EMI) two parts of electromagnetic susceptibility (EMS) and electromagnetic interference (EMI).Therefore Electro Magnetic Compatibility EMC is greatly improved.
13 stepper motors.4 stepper motors can be with at most.
14 Thomas's pumps.4 Thomas's pumps can be with at most.
15 solenoid valves and water pump.12 solenoid valves and water pump can be with at most.
Preferably, for the present situation of single-chip microcomputer of SOC (system on a chip) SOC owing to not having 16 high-precision adcs, 1Msps high sampling rate, USB interface simultaneously, first have selected the single-chip microcomputer C8051F06X of SOC (system on a chip) SOC with 16 high-precision adcs, 1Msps high sampling rate.
Then use the external latch of P4, P6, P7 mouth of SOC single-chip microcomputer, decoder circuit forms AB, DB, CB tri-bus extension circuit.
Finally on three bus extension circuit, mount usb circuit CH372, make this based on slave computer intelligent observing and controlling system of SOC (system on a chip) SOC single-chip microcomputer have simultaneously 16 high-precision adcs, 1Msps high sampling rate, can the performance of rapid, high volume data transmission USB interface.USB interface carries out communication with the computing machine as host computer.
The compound Anti-Jamming Technique adopted has:
The method improving electromagnetic susceptibility (EMS) is: use numeral input photoelectric isolating circuit, use transient voltage suppressor diode, and the low-pass filter using magnetic bead and sheet capacitor to form forms input nonlinearities and suppresses circuit.
(EMI) method reducing electromagnetic interference (EMI) is: use digital output photoelectric buffer circuit, the output terminal of whole driving circuit is all designed with AF panel diode, adopts twisted-pair feeder to drive load.Printed board design has been paid special attention to crystal oscillator as far as possible near chip, distance is less than 10mm and property-line shielding around.
Well-known Electro Magnetic Compatibility EMC comprises (EMI) two parts of electromagnetic susceptibility (EMS) and electromagnetic interference (EMI).Therefore Electro Magnetic Compatibility EMC is greatly improved.
Because Thomas's pump cannot not add speed pickup yet, so be to realize closed-loop control in principle, present invention utilizes the periodically variable feature of Thomas's pump load, from periodically variable drive current, obtain tach signal, ensure the normal work of Thomas's pump.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.

Claims (6)

1. the slave computer intelligent observing and controlling system based on SOC (system on a chip), it is characterized in that, comprise: single-chip microcomputer (1), numeral input photoelectric isolating circuit (4), pressure transducer (6), digital output photoelectric buffer circuit (11), multi-functional driving and codan (12), stepper motor (13), Thomas's pump (14) and water pump (15)
The thing bit digital input signal of numeral input photoelectric isolating circuit (4) input end input fully automatic blood viscosity kinetic analyzer, described numeral input photoelectric isolating circuit (4) output terminal connects single-chip microcomputer (1) digital signal signal input part, pressure transducer (6) signal output end connects single-chip microcomputer (1) pressure signal input end after amplifier (7) amplifies, single-chip microcomputer (1) digital signal output end connects digital output photoelectric buffer circuit (11) signal input part, described digital output photoelectric buffer circuit (11) signal output part connects multi-functional driving and codan (12) signal input part, described multi-functional driving is connected stepper motor (13) with codan (12) motor signal output terminal, described multi-functional driving is connected Thomas's pump signal input part with codan (12) Thomas's pump signal output part, described multi-functional driving and codan (12) solenoid valve and water pump signal output terminal connected electromagnetic valve and water pump signal input end.
2. the slave computer intelligent observing and controlling system based on SOC (system on a chip) according to claim 1, it is characterized in that, also comprise input nonlinearities and suppress circuit (3), described input nonlinearities suppresses circuit (3) one end to connect the thing bit digital input signal of input fully automatic blood viscosity kinetic analyzer, and described input nonlinearities suppresses circuit (3) other end to connect numeral input photoelectric isolating circuit (4) one end.
3. the slave computer intelligent observing and controlling system based on SOC (system on a chip) according to claim 1, it is characterized in that, also comprise follower circuit (5), described follower circuit (5) signal input part connects single-chip microcomputer (1) follower circuit signal output part.
4. the slave computer intelligent observing and controlling system based on SOC (system on a chip) according to claim 1, it is characterized in that, also comprise amplifier (7), pressure transducer (6) signal output end connects amplifier (7) signal input part, and described amplifier (7) signal output part connects single-chip microcomputer (1) pressure signal input end.
5. the slave computer intelligent observing and controlling system based on SOC (system on a chip) according to claim 1, it is characterized in that, also comprise solenoid valve, described solenoid valve is connected to water pump water outlet control end, for opening and closing water pump.
6. the slave computer intelligent observing and controlling system based on SOC (system on a chip) according to claim 1, is characterized in that, also comprises bus extension circuit (8) and usb circuit (9),
Described bus extension circuit (8) data-signal transmission ends connects single-chip microcomputer (1) data output end, and described bus extension circuit (8) data-signal transmission ends connects usb circuit (9) data-signal transmission ends.
CN201410741245.XA 2014-12-08 2014-12-08 System-on-chip based intelligent measuring and control system of lower computer Pending CN104615098A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5676141A (en) * 1993-03-31 1997-10-14 Nellcor Puritan Bennett Incorporated Electronic processor for pulse oximeters
CN2551178Y (en) * 2002-07-12 2003-05-21 四川宇峰科技发展有限公司 Detector for blood pressure and vascular hardness
CN2649020Y (en) * 2003-11-11 2004-10-20 艾泽孚 Fully automatic detecting instrument for blood apparent viscosity
CN101983732A (en) * 2010-11-19 2011-03-09 北京工业大学 Blood pump control device based on physiological parameters
CN102478484A (en) * 2010-11-29 2012-05-30 上海安彩智能技术有限公司 Lower machine of capillary-type blood viscosity analyzer
CN204287935U (en) * 2014-12-08 2015-04-22 重庆南方数控设备有限责任公司 Based on the slave computer intelligent observing and controlling system of SOC (system on a chip)

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5676141A (en) * 1993-03-31 1997-10-14 Nellcor Puritan Bennett Incorporated Electronic processor for pulse oximeters
CN2551178Y (en) * 2002-07-12 2003-05-21 四川宇峰科技发展有限公司 Detector for blood pressure and vascular hardness
CN2649020Y (en) * 2003-11-11 2004-10-20 艾泽孚 Fully automatic detecting instrument for blood apparent viscosity
CN101983732A (en) * 2010-11-19 2011-03-09 北京工业大学 Blood pump control device based on physiological parameters
CN102478484A (en) * 2010-11-29 2012-05-30 上海安彩智能技术有限公司 Lower machine of capillary-type blood viscosity analyzer
CN204287935U (en) * 2014-12-08 2015-04-22 重庆南方数控设备有限责任公司 Based on the slave computer intelligent observing and controlling system of SOC (system on a chip)

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