CN105259841A - Industrial multi-parameter data collector - Google Patents
Industrial multi-parameter data collector Download PDFInfo
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- CN105259841A CN105259841A CN201510764255.XA CN201510764255A CN105259841A CN 105259841 A CN105259841 A CN 105259841A CN 201510764255 A CN201510764255 A CN 201510764255A CN 105259841 A CN105259841 A CN 105259841A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2614—HVAC, heating, ventillation, climate control
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention discloses an industrial multi-parameter data collector. The collector comprises a signal conditioning module, an AD conversion module, a core control module, a liquid crystal display module, a communication interface module and a power supply module. The signal conditioning module is connected to the AD conversion module. The AD conversion module is connected to the core control module. The core control module is connected to the liquid crystal display module and the communication interface module respectively. The power supply module is connected to the signal conditioning module, the AD conversion module, the core control module and the communication interface module respectively. Compared to the prior art, by using the collector of the invention, there are the following advantages that a 32 bit ARM chip STM32F103ZET6 based on Cotex-M3 core is taken as the core control module; a 24 bit high-precision analog-to-digital conversion chip AD7799 is taken as the AD conversion module so that a multi-parameter data processing capability and acquisition precision can be greatly increased; and the structure is simple.
Description
Technical field
The present invention relates to data collector, be specifically related to a kind of industrial many reference amounts data acquisition unit.Be specially adapted to central heating network monitoring.
Background technology
Data acquisition is an indispensable part in modern project science and technology, and high-quality data acquisition is significant to the Sci-Tech Level improving China.Along with improving constantly of China's commercial production levels, also more and more higher to the requirement of data acquisition unit, not only need to realize the collection to many reference amounts data, and the high precision of gatherer process will be ensured.
At present, industry spot Multi-sensor Fusion parameter detecting is more and more applied, mostly data collector is on the market to realize single data acquisition function based on single-chip microcomputer design, being limited to the computing power of single-chip microcomputer, there is following problem in available data collector: (1) data-handling capacity does not reach the requirement of industry spot many reference amounts data acquisition; (2) precision is lower, is easily disturbed the mistake collection causing data.
Summary of the invention
The technical problem to be solved in the present invention is, overcome available data collector data-handling capacity not enough, the problem that precision is lower, provides a kind of industrial many reference amounts data acquisition unit.
For technical solution problem, the technical scheme that the present invention takes is: a kind of industrial many reference amounts data acquisition unit, is characterized in that: comprise Signal-regulated kinase, AD conversion module, kernel control module, LCD MODULE, communication interface module and power module; Wherein Signal-regulated kinase is connected with AD conversion module, AD conversion module is connected with kernel control module, kernel control module is connected with LCD MODULE, communication interface module respectively, and power module is connected with Signal-regulated kinase, AD conversion module, kernel control module and communication interface module respectively.
Compared with prior art, the invention has the beneficial effects as follows, adopt based on 32 ARM chip STM32F103ZET6 of Cotex-M3 kernel as kernel control module, adopt 24 high precision analogue conversion chip AD7799 as AD conversion module, can greatly improve data-handling capacity and the acquisition precision of many reference amounts, and structure is simple.
Accompanying drawing explanation
Fig. 1 is port assignment figure of the present invention;
Fig. 2 is schematic block circuit diagram of the present invention;
Fig. 3 is the temperature collection circuit schematic diagram of a Signal-regulated kinase passage in Fig. 2;
Fig. 4 is the pressure acquisition circuit theory diagrams of a Signal-regulated kinase passage in Fig. 2;
Fig. 5 is the flow collection circuit theory diagrams of a Signal-regulated kinase passage in Fig. 2;
Fig. 6 is AD conversion module A/D convertor circuit schematic diagram in Fig. 2;
Fig. 7 is the isolated form RS485 circuit theory diagrams of communication interface module in Fig. 2;
Fig. 8 is the power circuit principle figure of power module in Fig. 2;
Fig. 9 is collector control flow chart;
Figure 10 is the data acquisition flow figure of AD7799 modulus conversion chip in Fig. 1;
Figure 11 is the communication flow diagram of RS485 interface communication chip in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
With reference to Fig. 1, data acquisition unit port of the present invention comprises four road pressure signals and gathers port 1(P1-P4), power port 2(DC24V), liquid crystal display window 3, four tunnel flow signal acquisition port 4(S1-S4), six road temperature signal collection port 5(T1-T6), PORT COM 6(PLC).Pressure, flow, temperature signal collection port connect external sensor, and six temperature signal collection port 5 outsides, road connect PT100 platinum resistance, inner connection three-wire system bridge for measuring temperature circuit; Pressure, flow collection port connect the analog signal sensors of 4-20mA, inner connection sampling resistor circuit; The display of liquid crystal display window gathers the real time data of each channel data; Power port connects 24V direct supply for this collector and powers; PORT COM connects PLC and carries out exchanges data.
With reference to Fig. 2, data acquisition unit of the present invention comprises Signal-regulated kinase, AD conversion module, kernel control module, LCD MODULE, communication interface module and power module; Wherein Signal-regulated kinase is connected with AD conversion module, AD conversion module is connected with kernel control module, kernel control module is connected with LCD MODULE, communication interface module respectively, and power module is connected with Signal-regulated kinase, AD conversion module, kernel control module and communication interface module respectively.
Signal-regulated kinase of the present invention comprises the temperature collect module of Hexamermis spp, the pressure acquisition module of four-way and flow collection module three part of four-way, with reference to Fig. 3, wherein the temperature collection circuit of each passage of temperature collect module adopts a model to be the controllable accurate source of stable pressure D10 of TL431ACLP, a model is the schottky diode D11 of BAT54S, a model is the dual operational amplifier of LM258D, be respectively operational amplifier U11A, operational amplifier U11B, wherein 3 pin of controllable accurate source of stable pressure D10 meet power supply VCC through resistance R10 and hold, contact resistance R11 simultaneously, one end of resistance R13 and resistance R14, 1 pin of the other end of resistance R11 and a termination controllable accurate source of stable pressure D10 of resistance R12, the other end of resistance R12 is connected rear ground connection with 2 pin of controllable accurate source of stable pressure D10, the other end of resistance R13 connects temperature sensor positive pole T1+, the other end of resistance R14 is by resistance R15 jointing temp sensor negative pole T1-, simultaneously 3 pin of the other end through resistance R16 concatenation operation amplifier U11A of resistance R13 and one end of resistance R18, the other end of resistance R14 is connected to 2 pin of operational amplifier U11A and one end of resistance R19 through resistance R17, 1 pin of other end concatenation operation amplifier U11A of resistance R19 and one end of resistance R190, 4 pin of operational amplifier U11A connect one end of electric capacity C190, meet power supply-VCC after being connected with 4 pin of operational amplifier U11B to hold simultaneously, ground connection after being connected with the other end of resistance R18, the other end of resistance R190 is connected with 5 pin of operational amplifier U11B, connects again ground connection after the other end of electric capacity C192, electric capacity C190 and resistance R18 simultaneously, 6 pin ground connection after resistance R191 is connected with one end of electric capacity C191 of operational amplifier U11B, 8 pin of operational amplifier U11B connect the other end of electric capacity C191, meet power supply VCC simultaneously hold with 8 pin of operational amplifier U11A after being connected again, 6 pin of operational amplifier U11B are through 7 pin of resistance R192 concatenation operation amplifier U11B, 7 pin of operational amplifier U11B connect 3 pin of schottky diode D11 through resistance R193 simultaneously, simultaneously as the output terminal T1 of this circuit, 2 pin of schottky diode D11 meet power supply VCC and hold, 1 pin ground connection.
One road temperature collection circuit of temperature collect module forms bridge circuit by PT100 temperature sensor, resistance R13, resistance R14, resistance R15, T1+ connects PT100 temperature sensor positive pole, T1-connects PT100 temperature sensor negative pole, power supply is provided by TL431ACLP controllable accurate source of stable pressure D10, the controllable accurate source of stable pressure D10 of TL431ACLP forms amplifying circuit by two LM258 low-power consumption dual operational amplifiers, BAT54S schottky diode D11 starting voltage clamping action.
With reference to Fig. 4, the pressure acquisition circuit of each passage of pressure acquisition module of the present invention adopts a model to be the schottky diode D81 of BAT54S, a model is the operational amplifier U80A of LM258D, a two-way TVS diode D80, the wherein voltage signal P1V of one end Bonding pressure sensor output of resistance R83, the other end contact resistance R80 of resistance R83 and one end of resistance R81, then the current signal P1I of Bonding pressure sensor output, the other end of resistance R81 connects one end of electric capacity C80 and two-way TVS diode D80 and 3 pin of operational amplifier U80A, 4 pin of operational amplifier U80A meet power supply-VCC, connect one end of electric capacity C84 simultaneously, 2 pin of operational amplifier U80A connect 3 pin of schottky diode D81 and 1 pin of operational amplifier U80A through resistance R84, meet power supply VCC after 8 pin of operational amplifier U80A are connected with one end of electric capacity C86 to hold, the other end ground connection of electric capacity C86, 2 pin of schottky diode D81 meet power supply VCC and hold, 1 pin ground connection, 1 pin of operational amplifier U80A is connected with one end of electric capacity C82 through resistance R82 simultaneously, simultaneously as the output terminal P1 of this circuit, electric capacity C82, electric capacity C84, two-way TVS diode D80, the other end of electric capacity C80 and resistance R80 connects rear ground connection.
Pressure acquisition module is changed the 4-20mA that pressure transducer exports by sampling resistor R80, P1V connects the voltage signal that sensor exports, P1I connects the current signal that sensor exports, two-way TVS diode D80 can the interference that produces because of momentary pulse of erasure signal, LM258 low-power consumption dual operational amplifier U80A forms a voltage follower, BAT54S schottky diode D81 starting voltage clamping action.
With reference to Fig. 5, the flow collection circuit of each passage of flow collection module of the present invention adopts a model to be the schottky diode D121 of BAT54S, two-way TVS diode D120 and one model is the operational amplifier U20A of LM258D, the wherein voltage signal S1V of one end connection traffic sensor output of resistance R123, the other end contact resistance R121 of resistance R123 and one end of resistance R120, then the current signal S1I of connection traffic sensor output, the other end of resistance R121 connects one end of electric capacity C120 and two-way TVS diode D120 and 3 pin of operational amplifier U20A, 2 pin of operational amplifier U20A connect 3 pin of schottky diode D121 through resistance R124, 1 pin of operational amplifier U20A and one end of resistance R122, 4 pin of operational amplifier U20A connect one end of power supply-VCC end and electric capacity C124, 8 pin of operational amplifier U20A connect power supply VCC end, simultaneously through electric capacity C126 ground connection, 2 pin of schottky diode D121 meet power supply VCC and hold, 1 pin ground connection, the other end of resistance R122 is connected with one end of electric capacity C122, simultaneously as the output terminal S1 of this circuit, electric capacity C122, electric capacity C124, two-way TVS diode D120, the other end of electric capacity C120 and resistance R120 connects rear ground connection.
The 4-20mA that flow collection module is exported by sampling resistor R120 flow sensor changes, S1V connects the voltage signal that sensor exports, S1I connects the current signal that sensor exports, two-way TVS diode D120 can the interference that produces because of momentary pulse of erasure signal, LM258 low-power consumption dual operational amplifier U20A forms a voltage follower, BAT54S schottky diode D121 starting voltage clamping action.
Kernel control module of the present invention adopts 32 ARM chip STM32F103ZET6 based on Cotex-M3 kernel as data processing core.
With reference to Fig. 6, AD conversion module of the present invention adopts five models to be the modulus conversion chip of AD7799, model is that the photoelectrical coupler of TLP281-1 and every a slice modulus conversion chip form an A/D convertor circuit, 1 pin of the photoelectrical coupler T8 of this circuit connects 3.3V power supply through resistance R718, 2 pin connect ARM chip, 3 pin ground connection, 4 pin are connected with 2 pin of modulus conversion chip U70, then meet power supply VCC through resistance R719 to hold, 4 pin of modulus conversion chip U70, 6 pin, ground connection after 8 pin connect, 9 pin connect ARM chip, 13 pin connect one end of electric capacity C702 and electric capacity C704, then with 14 pin, electric capacity C700 meets power supply VCC and holds after being connected with one end of electric capacity C701, electric capacity C701, electric capacity C700, the other end of electric capacity C704 and electric capacity C702 and 12 pin of modulus conversion chip U70, ground connection after 11 pin and 10 pin connect.
AD conversion module adopts five 24 high precision analogue conversion chip AD7799, carries out analog to digital conversion respectively to six road temperature signals, four road pressure signals, four road flow signals.For a slice modulus conversion chip AD7799, photoelectrical coupler and modulus conversion chip AD7799 is adopted to form A/D convertor circuit, by 24V Power convert power supply needed for each module such as+5V ,-5V ,+3.3V.
With reference to Fig. 7, communication interface module of the present invention adopts three models to be the photo-coupler of 6N137, be respectively photo-coupler U81, photo-coupler U82 and photo-coupler U83, the RS485 interface communication chip being 6LB184 with a slice model forms isolated form RS485 circuit, 8 pin of the photo-coupler U81 of this circuit connect electric capacity C180, 3.3V power supply is connect behind one end of resistance R183, ARM chip is connect after 6 pin of photo-coupler U81 are connected with the other end of resistance R183, 5 pin of photo-coupler U81 are connected rear ground connection with the other end of electric capacity C180, 2 pin meet power supply VCC through resistance R180 and hold, 3 pin are connected with 1 pin of communication chip U117, 2 pin of photo-coupler U82 connect 3.3V power supply through resistance R181,3 pin connect ARM chip, 8 pin meet power supply VCC after connecting one end of electric capacity C181 and resistance R184 and hold, ground connection after 5 pin are connected with the other end of electric capacity C181,6 pin connect 2 pin and 3 pin of communication chip U117 after being connected with the other end of resistance R184, 2 pin of photo-coupler U83 connect 3.3V power supply through resistance R182,3 pin connect ARM chip, 8 pin meet power supply VCC after connecting one end of electric capacity C182 and resistance R185 and hold, ground connection after 5 pin are connected with the other end of electric capacity C182, and 6 pin connect 4 pin of communication chip U117 after being connected with the other end of resistance R185, meet power supply VCC after 8 pin of communication chip U117 are connected with one end of electric capacity C183 and resistance R187 to hold, the other end ground connection of electric capacity C183, ground connection after 7 pin of communication chip U117 and 5 pin contact resistance R186,7 pin of simultaneous communications chip U117 connect the one end of connecting resistance R188 behind one end of two-way TVS diode D150, one end of connecting resistance R189 after the 6 pin contact resistance R187 of communication chip U117 and the other end of two-way TVS diode D150.
Communication interface module forms isolated form RS485 circuit by DC-DC, RS485 interface communication chip 6LB184 of High-Speed Coupled Device 6N137, band isolation, eliminate common-mode voltage influences, realize the isolation transmission of signal, two-way TVS diode D150 can the interference that produces because of momentary pulse of erasure signal.Communication interface module is the RS485 bus based on MODBUS-RTU agreement, is connected with PLC.
With reference to Fig. 8, power module of the present invention adopts model to be LM2596SV-5 regulator U2, model is B0509S-2WR2 insulating power supply module U4, model is B0509S-1WR2 insulating power supply module U9, model is B0505S-1WR2 insulating power supply module U7, model is 1117M3 three terminal regulator U3, model is MC78M05 three-terminal voltage-stabilizing module U5, model is the power circuit of MC79M05 three-terminal voltage-stabilizing module U6, 24V power supply is connect after 1 pin of the regulator U2 of this circuit is connected with the positive pole of electric capacity C01, hold with connecing 24V power supply after 5 pin of regulator U2 are connected with the negative pole of electric capacity C01 with 3 pin, 2 pin of regulator U2 connect the negative pole of diode D01 and one end of inductance L 01, the positive pole of diode D01 is connected with the negative pole of electric capacity C02, electric capacity C015 is linked after the positive pole of 4 pin of regulator U2 and the other end of inductance L 01 and electric capacity C02 is connected, the positive pole of electric capacity C028 and electric capacity C70 and 3 pin of three terminal regulator U3, electric capacity C015 simultaneously, the positive pole of electric capacity C028 and electric capacity C70 links 1 pin of insulating power supply module U4 respectively, 2 pin of insulating power supply module U9 and 2 pin of insulating power supply module U7, electric capacity C015, the negative pole of electric capacity C028 and electric capacity C70 links 2 pin of insulating power supply module U4 respectively, 1 pin of insulating power supply module U9 and 1 pin of insulating power supply module U7, simultaneously 2 pin of insulating power supply module U4 and 1 pin of insulating power supply module U9 and 1 pin of insulating power supply module U7 are held with connecing 24V power supply respectively, 6 pin of insulating power supply module U4 and electric capacity C107, electric capacity C108 links 1 pin of three-terminal voltage-stabilizing module U5 after being connected with one end of electric capacity C109, 4 pin of insulating power supply module U4 and electric capacity C107, electric capacity C108 links 2 pin of three-terminal voltage-stabilizing module U5 after being connected with the other end of electric capacity C109, 4 pin of insulating power supply module U9 and electric capacity C25, electric capacity C26 links 2 pin of three-terminal voltage-stabilizing module U6 after being connected with one end of electric capacity C27, 3 pin of insulating power supply module U9 and electric capacity C25, electric capacity C26 links 1 pin of three-terminal voltage-stabilizing module U6 after being connected with the other end of electric capacity C27, 2 pin of three-terminal voltage-stabilizing module U5 are connected with 2 pin of three-terminal voltage-stabilizing module U6 simultaneously, 4 pin of insulating power supply module U4 and the equal ground connection of 4 pin of insulating power supply module U9, meet power supply VCC behind one end of the 4 pin connection electric capacity C71 of insulating power supply module U7 to hold, ground connection after the other end of the 4 pin connection electric capacity C71 of insulating power supply module U7, 2 pin of three terminal regulator U3 connect electric capacity C06, electric capacity C07, 3.3V power supply is connect behind one end of electric capacity C08 and electric capacity C09, 1 pin of three terminal regulator U3 connects electric capacity C06, electric capacity C07, hold with connecing 24V power supply after the other end of electric capacity C08 and electric capacity C09.
Power management module connects+24V direct supply, obtains+5V power supply by the step-down of LM2596 regulator, and gained+5V power supply is divided into Cheng Silu transmission.The first via+5V power supply obtains+9V power supply through DC-DC insulating power supply module B0509S-2W, then obtains+5V power supply through three-terminal voltage-stabilizing module MC78M05; Second tunnel+5V power supply obtains+9V power supply through DC-DC insulating power supply module B0509S-1W, then obtains-5V power supply through three-terminal voltage-stabilizing module MC79M05; 3rd tunnel+5V power supply obtains working power+5V needed for RS485 module through RS485 interface DC-DC insulating power supply module B0505S-1W; 4th tunnel+5V power supply obtains working power+3.3V needed for ARM chip STM32F103ZET6 through three terminal regulator 1117M3.
LCD MODULE of the present invention adopts model to be LCD12864 liquid crystal display.
Flow chart of data processing of the present invention is as follows: communication interface module connects PLC, and uplink image data, down forwards acquisition instructions.Down forward instruction: receive the acquisition instructions from host computer, resolve director data by kernel control module and start data acquisition.Uplink transmission data: gather industry spot multichannel external sensor signal, signal is carried out amplifying through each Signal-regulated kinase respectively, filtering process, conversion is completed by AD conversion module AD7799, send into kernel control module STM32F103ZET6 and carry out multiple sensor data processing, and the data encapsulation that will gather.After having processed, send LCD12864 to show data, be uploaded to host computer through PORT COM RS485 bus according to MODBUS-RTU agreement simultaneously.
With reference to Fig. 9, flow process of the present invention is: first close global interrupt, initialization is carried out to each functional modules such as cpu clock, delay function, interruption, LED port, LCD port, AD7799, MODBUS slave station parameter, serial ports and house dogs, then global interrupt is opened, house dog timing is set, by AD7799 modulus conversion chip data acquisition, the data gathered are shown through LCD12864 liquid crystal display, carries out RS484 communication.
Following steps are performed with reference to Figure 10, AD7799 modulus conversion chip:
Step one. by writing communication register, select write operation to be next time write configuration register;
Step 2. by writing configuration register, arranging AD7799 modulus conversion chip is unipolarity, and enlargement factor is 8, and passage is 0, prohibits the use impact damper, constant current source output enable;
Step 3. by writing communication register, select write operation to be next time WriteMode register;
Step 4. by WriteMode register, select low level grounding switch, operator scheme is set to continuous translative mode, and inversion frequency is 50HZ;
Step 5. judge whether zero degree calibration bits (/INT0) is 0; If zero degree calibration bits is 0, then by writing communication register, select is read data register next time; If zero degree calibration bits is not 0, then continue to perform step 5, program enters wait, until detect that zero degree calibration bits is 0;
Step 6. detect whether data encasement carry-out bit RDY is 0; If data encasement carry-out bit RDY is 0, then judge whether reading process makes mistakes; If data encasement carry-out bit RDY is not 0, then continue to perform step 6, program enters wait, until detect that data encasement carry-out bit RDY is 0;
Step 7. judge whether reading process makes mistakes; If reading process is not made mistakes, then sense data; If reading process is made mistakes, then return step 2, reconfigure AD7799 modulus conversion chip.
Following steps are performed with reference to Figure 11, RS485 interface communication chip:
Step one. serial ports initialization also opens serial ports;
Step 2. judge that whether communication test is correct; If communication test is correct, then gives and send instruction from machine; If communication test is incorrect, then return step one, again initialization is carried out to serial ports;
Step 3. receive from machine data;
Step 4. judge that whether CRC check (i.e. cyclic redundancy check (CRC)) is correct; If CRC check is correct, then judge whether return error code from machine; If CRC check is incorrect, then resend instruction, continue to perform step 3;
If step 5. do not return error code from machine, then make normal process; If return error code from machine, then make error handle.
Claims (10)
1. an industrial many reference amounts data acquisition unit, is characterized in that: comprise Signal-regulated kinase, AD conversion module, kernel control module, LCD MODULE, communication interface module and power module; Wherein Signal-regulated kinase is connected with AD conversion module, AD conversion module is connected with kernel control module, kernel control module is connected with LCD MODULE, communication interface module respectively, and power module is connected with Signal-regulated kinase, AD conversion module, kernel control module and communication interface module respectively.
2. the industrial many reference amounts data acquisition unit of one according to claim 1, it is characterized in that: described Signal-regulated kinase comprises the temperature collect module of Hexamermis spp, the pressure acquisition module of four-way and flow collection module three part of four-way, wherein the temperature collection circuit of each passage of temperature collect module adopts a model to be the controllable accurate source of stable pressure D10 of TL431ACLP, a model is the schottky diode D11 of BAT54S, a model is the dual operational amplifier of LM258D, be respectively operational amplifier U11A, operational amplifier U11B, wherein 3 pin of controllable accurate source of stable pressure D10 meet power supply VCC through resistance R10 and hold, contact resistance R11 simultaneously, one end of resistance R13 and resistance R14, 1 pin of the other end of resistance R11 and a termination controllable accurate source of stable pressure D10 of resistance R12, the other end of resistance R12 is connected rear ground connection with 2 pin of controllable accurate source of stable pressure D10, the other end of resistance R13 connects temperature sensor positive pole T1+, the other end of resistance R14 is by resistance R15 jointing temp sensor negative pole T1-, simultaneously 3 pin of the other end through resistance R16 concatenation operation amplifier U11A of resistance R13 and one end of resistance R18, the other end of resistance R14 is connected to 2 pin of operational amplifier U11A and one end of resistance R19 through resistance R17, 1 pin of other end concatenation operation amplifier U11A of resistance R19 and one end of resistance R190, 4 pin of operational amplifier U11A connect one end of electric capacity C190, meet power supply-VCC after being connected with 4 pin of operational amplifier U11B to hold simultaneously, ground connection after being connected with the other end of resistance R18, the other end of resistance R190 is connected with 5 pin of operational amplifier U11B, connects again ground connection after the other end of electric capacity C192, electric capacity C190 and resistance R18 simultaneously, 6 pin ground connection after resistance R191 is connected with one end of electric capacity C191 of operational amplifier U11B, 8 pin of operational amplifier U11B connect the other end of electric capacity C191, meet power supply VCC simultaneously hold with 8 pin of operational amplifier U11A after being connected again, 6 pin of operational amplifier U11B are through 7 pin of resistance R192 concatenation operation amplifier U11B, 7 pin of operational amplifier U11B connect 3 pin of schottky diode D11 through resistance R193 simultaneously, simultaneously as the output terminal T1 of this circuit, 2 pin of schottky diode D11 meet power supply VCC and hold, 1 pin ground connection.
3. the industrial many reference amounts data acquisition unit of one according to claim 2, it is characterized in that: the pressure acquisition circuit of each passage of described pressure acquisition module adopts a model to be the schottky diode D81 of BAT54S, a model is the operational amplifier U80A of LM258D, a two-way TVS diode D80, the wherein voltage signal P1V of one end Bonding pressure sensor output of resistance R83, the other end contact resistance R80 of resistance R83 and one end of resistance R81, then the current signal P1I of Bonding pressure sensor output, the other end of resistance R81 connects one end of electric capacity C80 and two-way TVS diode D80 and 3 pin of operational amplifier U80A, 4 pin of operational amplifier U80A meet power supply-VCC, connect one end of electric capacity C84 simultaneously, 2 pin of operational amplifier U80A connect 3 pin of schottky diode D81 and 1 pin of operational amplifier U80A through resistance R84, meet power supply VCC after 8 pin of operational amplifier U80A are connected with one end of electric capacity C86 to hold, the other end ground connection of electric capacity C86, 2 pin of schottky diode D81 meet power supply VCC and hold, 1 pin ground connection, 1 pin of operational amplifier U80A is connected with one end of electric capacity C82 through resistance R82 simultaneously, simultaneously as the output terminal P1 of this circuit, electric capacity C82, electric capacity C84, two-way TVS diode D80, the other end of electric capacity C80 and resistance R80 connects rear ground connection.
4. the industrial many reference amounts data acquisition unit of one according to claim 2, it is characterized in that: the flow collection circuit of each passage of described flow collection module adopts a model to be the schottky diode D121 of BAT54S, two-way TVS diode D120 and one model is the operational amplifier U20A of LM258D, the wherein voltage signal S1V of one end connection traffic sensor output of resistance R123, the other end contact resistance R121 of resistance R123 and one end of resistance R120, then the current signal S1I of connection traffic sensor output, the other end of resistance R121 connects one end of electric capacity C120 and two-way TVS diode D120 and 3 pin of operational amplifier U20A, 2 pin of operational amplifier U20A connect 3 pin of schottky diode D121 through resistance R124, 1 pin of operational amplifier U20A and one end of resistance R122, 4 pin of operational amplifier U20A connect one end of power supply-VCC end and electric capacity C124, 8 pin of operational amplifier U20A connect power supply VCC end, simultaneously through electric capacity C126 ground connection, 2 pin of schottky diode D121 meet power supply VCC and hold, 1 pin ground connection, the other end of resistance R122 is connected with one end of electric capacity C122, simultaneously as the output terminal S1 of this circuit, electric capacity C122, electric capacity C124, two-way TVS diode D120, the other end of electric capacity C120 and resistance R120 connects rear ground connection.
5. the industrial many reference amounts data acquisition unit of one according to claim 1, is characterized in that: described kernel control module adopts 32 ARM chip STM32F103ZET6 based on Cotex-M3 kernel.
6. the industrial many reference amounts data acquisition unit of one according to claim 5, it is characterized in that: AD conversion module adopts five models to be the modulus conversion chip of AD7799, model is that the photoelectrical coupler of TLP281-1 and every a slice modulus conversion chip form an A/D convertor circuit, 1 pin of the photoelectrical coupler T8 of this circuit connects 3.3V power supply through resistance R718, 2 pin connect ARM chip, 3 pin ground connection, 4 pin are connected with 2 pin of modulus conversion chip U70, then meet power supply VCC through resistance R719 to hold, 4 pin of modulus conversion chip U70, 6 pin, ground connection after 8 pin connect, 9 pin connect ARM chip, 13 pin connect one end of electric capacity C702 and electric capacity C704, then with 14 pin, electric capacity C700 meets power supply VCC and holds after being connected with one end of electric capacity C701, electric capacity C701, electric capacity C700, the other end of electric capacity C704 and electric capacity C702 and 12 pin of modulus conversion chip U70, ground connection after 11 pin and 10 pin connect.
7. the industrial many reference amounts data acquisition unit of one according to claim 5, it is characterized in that: communication interface module adopts three models to be the photo-coupler of 6N137, be respectively photo-coupler U81, photo-coupler U82 and photo-coupler U83, the RS485 interface communication chip being 6LB184 with a slice model forms isolated form RS485 circuit, 8 pin of the photo-coupler U81 of this circuit connect electric capacity C180, 3.3V power supply is connect behind one end of resistance R183, ARM chip is connect after 6 pin of photo-coupler U81 are connected with the other end of resistance R183, 5 pin of photo-coupler U81 are connected rear ground connection with the other end of electric capacity C180, 2 pin meet power supply VCC through resistance R180 and hold, 3 pin are connected with 1 pin of communication chip U117, 2 pin of photo-coupler U82 connect 3.3V power supply through resistance R181,3 pin connect ARM chip, 8 pin meet power supply VCC after connecting one end of electric capacity C181 and resistance R184 and hold, ground connection after 5 pin are connected with the other end of electric capacity C181,6 pin connect 2 pin and 3 pin of communication chip U117 after being connected with the other end of resistance R184, 2 pin of photo-coupler U83 connect 3.3V power supply through resistance R182,3 pin connect ARM chip, 8 pin meet power supply VCC after connecting one end of electric capacity C182 and resistance R185 and hold, ground connection after 5 pin are connected with the other end of electric capacity C182, and 6 pin connect 4 pin of communication chip U117 after being connected with the other end of resistance R185, meet power supply VCC after 8 pin of communication chip U117 are connected with one end of electric capacity C183 and resistance R187 to hold, the other end ground connection of electric capacity C183, ground connection after 7 pin of communication chip U117 and 5 pin contact resistance R186,7 pin of simultaneous communications chip U117 connect the one end of connecting resistance R188 behind one end of two-way TVS diode D150, one end of connecting resistance R189 after the 6 pin contact resistance R187 of communication chip U117 and the other end of two-way TVS diode D150.
8. the industrial many reference amounts data acquisition unit of one according to claim 5, it is characterized in that: power module adopts model to be LM2596SV-5 regulator U2, model is B0509S-2WR2 insulating power supply module U4, model is B0509S-1WR2 insulating power supply module U9, model is B0505S-1WR2 insulating power supply module U7, model is 1117M3 three terminal regulator U3, model is MC78M05 three-terminal voltage-stabilizing module U5, model is the power circuit of MC79M05 three-terminal voltage-stabilizing module U6, 24V power supply is connect after 1 pin of the regulator U2 of this circuit is connected with the positive pole of electric capacity C01, hold with connecing 24V power supply after 5 pin of regulator U2 are connected with the negative pole of electric capacity C01 with 3 pin, 2 pin of regulator U2 connect the negative pole of diode D01 and one end of inductance L 01, the positive pole of diode D01 is connected with the negative pole of electric capacity C02, electric capacity C015 is linked after the positive pole of 4 pin of regulator U2 and the other end of inductance L 01 and electric capacity C02 is connected, the positive pole of electric capacity C028 and electric capacity C70 and 3 pin of three terminal regulator U3, electric capacity C015 simultaneously, the positive pole of electric capacity C028 and electric capacity C70 links 1 pin of insulating power supply module U4 respectively, 2 pin of insulating power supply module U9 and 2 pin of insulating power supply module U7, electric capacity C015, the negative pole of electric capacity C028 and electric capacity C70 links 2 pin of insulating power supply module U4 respectively, 1 pin of insulating power supply module U9 and 1 pin of insulating power supply module U7, simultaneously 2 pin of insulating power supply module U4 and 1 pin of insulating power supply module U9 and 1 pin of insulating power supply module U7 are held with connecing 24V power supply respectively, 6 pin of insulating power supply module U4 and electric capacity C107, electric capacity C108 links 1 pin of three-terminal voltage-stabilizing module U5 after being connected with one end of electric capacity C109, 4 pin of insulating power supply module U4 and electric capacity C107, electric capacity C108 links 2 pin of three-terminal voltage-stabilizing module U5 after being connected with the other end of electric capacity C109, 4 pin of insulating power supply module U9 and electric capacity C25, electric capacity C26 links 2 pin of three-terminal voltage-stabilizing module U6 after being connected with one end of electric capacity C27, 3 pin of insulating power supply module U9 and electric capacity C25, electric capacity C26 links 1 pin of three-terminal voltage-stabilizing module U6 after being connected with the other end of electric capacity C27, 2 pin of three-terminal voltage-stabilizing module U5 are connected with 2 pin of three-terminal voltage-stabilizing module U6 simultaneously, 4 pin of insulating power supply module U4 and the equal ground connection of 4 pin of insulating power supply module U9, meet power supply VCC behind one end of the 4 pin connection electric capacity C71 of insulating power supply module U7 to hold, ground connection after the other end of the 4 pin connection electric capacity C71 of insulating power supply module U7, 2 pin of three terminal regulator U3 connect electric capacity C06, electric capacity C07, 3.3V power supply is connect behind one end of electric capacity C08 and electric capacity C09, 1 pin of three terminal regulator U3 connects electric capacity C06, electric capacity C07, hold with connecing 24V power supply after the other end of electric capacity C08 and electric capacity C09.
9. the industrial many reference amounts data acquisition unit of one according to claim 5, is characterized in that: LCD MODULE adopts model to be LCD12864 liquid crystal display.
10. the industrial many reference amounts data acquisition unit of one according to claim 7, is characterized in that: AD7799 modulus conversion chip performs following steps:
Step one. by writing communication register, select write operation to be next time write configuration register;
Step 2. by writing configuration register, arranging AD7799 modulus conversion chip is unipolarity, and enlargement factor is 8, and passage is 0, prohibits the use impact damper, constant current source output enable;
Step 3. by writing communication register, select write operation to be next time WriteMode register;
Step 4. by WriteMode register, select low level grounding switch, operator scheme is set to continuous translative mode, and inversion frequency is 50HZ;
Step 5. judge whether zero degree calibration bits is 0; If zero degree calibration bits is 0, then by writing communication register, select is read data register next time; If zero degree calibration bits is not 0, then continue to perform step 5, program enters wait, until detect that zero degree calibration bits is 0;
Step 6. detect whether data encasement carry-out bit RDY is 0; If data encasement carry-out bit RDY is 0, then judge whether reading process makes mistakes; If data encasement carry-out bit RDY is not 0, then continue to perform step 6, program enters wait, until detect that data encasement carry-out bit RDY is 0;
Step 7. judge whether reading process makes mistakes; If reading process is not made mistakes, then sense data; If reading process is made mistakes, then return step 2, reconfigure AD7799 modulus conversion chip;
RS485 interface communication chip performs following steps:
Step one. serial ports initialization also opens serial ports;
Step 2. judge that whether communication test is correct; If communication test is correct, then gives and send instruction from machine; If communication test is incorrect, then return step one, again initialization is carried out to serial ports;
Step 3. receive from machine data;
Step 4. judge that whether CRC check is correct; If CRC check is correct, then judge whether return error code from machine; If CRC check is incorrect, then resend instruction, continue to perform step 3;
If step 5. do not return error code from machine, then make normal process; If return error code from machine, then make error handle.
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| CN109412542A (en) * | 2018-12-10 | 2019-03-01 | 中国航发南方工业有限公司 | Pressure signal conditioning circuit and electronic controller |
| CN113162221A (en) * | 2021-05-10 | 2021-07-23 | 上海西隆电力科技有限公司 | Power supply signal separator, acoustic emission signal acquisition and separation system and method |
| CN114115181A (en) * | 2021-11-12 | 2022-03-01 | 天津航空机电有限公司 | Voltage acquisition circuit of solid-state power controller |
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| CN105259841B (en) | 2018-03-30 |
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