CN110007638A - A kind of sensing data acquisition processing system - Google Patents
A kind of sensing data acquisition processing system Download PDFInfo
- Publication number
- CN110007638A CN110007638A CN201910412944.2A CN201910412944A CN110007638A CN 110007638 A CN110007638 A CN 110007638A CN 201910412944 A CN201910412944 A CN 201910412944A CN 110007638 A CN110007638 A CN 110007638A
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- China
- Prior art keywords
- circuit
- operational amplifier
- governor
- governor circuit
- analog switch
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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
- G05B19/0423—Input/output
Abstract
A kind of sensing data acquisition processing system, including governor circuit, what is be connected with the governor circuit has the first operational amplifier circuit and the second operational amplifier circuit, first operational amplifier circuit is connected with analog switch control circuit, second operational amplifier circuit connects sensor Acquisition Circuit, and one end of the sensor Acquisition Circuit is connected with sensor, and the governor circuit is also connected with 485 communicating circuits, one end of 485 communicating circuit connects the governor circuit, and the other end is connected with host computer.The present invention realizes the transformation of resistive voltage by electric-bridge circuit, after signal is adjusted by the first operational amplifier circuit, level signal is converted into frequency signal by analog switch control circuit and the second operational amplifier circuit, it is powered by single 5V power supply to whole system, the production domesticization of whole plate electrical component can be achieved, by 8 MCU of STC of domestic brand as main control chip, the full automatic calibration for standard electric resistance value can be realized by analog switch control circuit.
Description
Technical field
The present invention relates to sensing data processing technology field, especially a kind of sensing data acquisition processing system.
Background technique
Automatic collection non electrical quantity or electricity letter from the analog- and digital- unit under test such as sensor and other Devices to test
Number being sent to the process being analyzed and processed in host computer is sensing data acquisition, data collection system be combine based on computer or
The measurement software and hardware product of other dedicated testing platforms of person realizes flexible, the customized measuring system of user, but existing
Sensing data acquisition system has a limitation mostly, can only such as use a kind of transmission line, and anti-interference ability is weak etc., and device used
Part is mostly that foreign countries are produced, and such as failure, is not easy to replace, and because of the communication modes of domestic and international main control chip difference, can be generated certain
It influences.
So need to just design the sensing data acquisition process of a kind of device whole production domesticization and compatible most of communication modes
System.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide one kind, and anti-interference ability and and compatibility can be improved
The data acquisition processing system of RS485 and RS422.
The present invention solves its technical problem and adopts the following technical solutions to achieve:
A kind of sensing data acquisition processing system, comprising:
Governor circuit, the governor circuit are used to handle the data-signal of analysis input and make feedback；
Analog switch control circuit, the analog switch control circuit connect the governor circuit, for the master control
Circuit assigns control instruction；
One end of sensor Acquisition Circuit, the sensor Acquisition Circuit connects the governor circuit, and the other end is connected with
Sensor is used for the collected data signal transmission of sensor into the governor circuit；
One end of 485 communicating circuits, 485 communicating circuit connects the governor circuit, and the other end is connected with host computer,
Data for analyzing governor circuit be transmitted in host computer carry out display check；
The analog switch control circuit control governor circuit assigns data acquisition instructions, and the sensor Acquisition Circuit will
The collected data information transfer of sensor is analyzed and processed into governor circuit, then is transmitted to by 485 communicating circuits upper
Display operation is carried out in machine.
Preferably, the first operational amplifier circuit is additionally provided between the governor circuit and analog switch control circuit, it is described
The first operational amplifier circuit be processed and transmitted in governor circuit for being amplified to the command signal of analog switch control circuit.
Preferably, the second operational amplifier circuit is additionally provided between the governor circuit and sensor Acquisition Circuit, it is described
Second operational amplifier circuit be used for the data-signal that sensor Acquisition Circuit is collected amplify handle after and be transmitted to the master control
In circuit.
Preferably, the main control chip of the governor circuit is STC15F104E.
Preferably, the chip of 485 communicating circuits is GM485E, and B pin and A pin are connected with RS485 interface,
The RS485 interface connects the host computer, and RO, RE of 485 communicating circuit connect the governor circuit with DI pin.
Preferably, the chip of the analog switch control circuit is RS2253, and 2 pins connect the governor circuit
7 pins, 6 pins connect 5 pins of the governor circuit.
Preferably, the amplifier component of first operational amplifier circuit is LM324, the amplifier group of the second amplifier component
Part is OP07, and the output end of first operational amplifier circuit connects 7 pins of the governor circuit, second operational amplifier circuit it is defeated
Outlet connects 5 pins of the analog switch control circuit, and the input terminal of second operational amplifier circuit connects the sensor and adopts
Collector.
The advantages and positive effects of the present invention are:
1, the present invention realizes the transformation of resistive voltage by electric-bridge circuit, is adjusted signal by the first operational amplifier circuit
Afterwards, level signal is converted to by frequency signal by analog switch control circuit and the second operational amplifier circuit, is given by single 5V power supply
Whole system power supply, all device parameter performances are, it can be achieved that the state of whole plate electrical component in the range of current domestics
Productionization.
2, the present invention realizes the thermal design of whole plate low-temperature gradient, by between device by the symmetric layout of circuit
The self compensation of temperature drift realize low temperature noise, the low noise of signal is realized by rational deployment wiring, to realize low
The temperature acquisition of cost high accuracy.
3, STC 8 MCU of the invention by domestic brand, can by analog switch control circuit as main control chip
It realizes the full automatic calibration for standard electric resistance value, the mark of single or multiple nodes can be realized by RS485 duplex bus networking
Fixed, self ID configuration and signal acquisition, may also pass through the acquisition that preset configuration carries out signal by RS422 either simplex interface, signal
Sample rate is greater than 10HZ.
Detailed description of the invention
Fig. 1 is circuit theory connection signal block diagram of the invention；
Fig. 2 is circuit theory schematic diagram of the invention.
In figure: 1, governor circuit；2,485 communicating circuit；3, sensor Acquisition Circuit；4, analog switch control circuit；5,
First operational amplifier circuit；6, the second operational amplifier circuit.
Specific embodiment
The embodiment of the present invention is further described below in conjunction with attached drawing:
As illustrated in fig. 1 and 2, a kind of sensing data acquisition processing system of the present invention, including governor circuit 1, it is described
Governor circuit 1 is used to handle the data-signal of analysis input and makes feedback, has the first amplifier with what the governor circuit 1 was connected
Circuit 5 and the second operational amplifier circuit 6, first operational amplifier circuit 5 are connected with analog switch control circuit 4, and the simulation is opened
It closes control circuit 4 and is used to assign the governor circuit 1 control instruction, the second operational amplifier circuit 6 connection sensor acquisition
One end of circuit 3, the sensor Acquisition Circuit 3 is connected with sensor, is used for the collected data signal transmission of sensor
To in the governor circuit 1, first operational amplifier circuit 5 is for putting the command signal of analog switch control circuit 4
It is processed and transmitted in governor circuit 1 greatly, second operational amplifier circuit 6 is used to collect the sensor Acquisition Circuit 3
Data-signal amplify after processing and be transmitted in the governor circuit 1, it is logical that the governor circuit 1 is also connected with 485
Circuit 2 is interrogated, one end of 485 communicating circuit 2 connects the governor circuit 1, and the other end is connected with host computer, is used for master control
Circuit 1, which is analyzed obtained data and is transmitted in host computer, to carry out display and checks.
In addition, the main control chip of the governor circuit 1 is STC15F104E, the chip of 485 communicating circuits 2 is
GM485E, B pin and A pin are connected with RS485 interface, and the RS485 interface connects the host computer, 485 communication
RO, RE of circuit 2 connect the governor circuit 1 with DI pin, and the chip of the analog switch control circuit 4 is RS2253,
Its 2 pin connects 7 pins of the governor circuit 1, and 6 pins connect 5 pins of the governor circuit 1.First fortune
The amplifier component on electric discharge road 5 is LM324, and the amplifier component of second operational amplifier circuit 6 is OP07, first operational amplifier circuit
5 output end connects 7 pins of the governor circuit 1, and the output end of second operational amplifier circuit 6 connects the analog switch control
The input terminal of 5 pins of circuit 4 processed, second operational amplifier circuit 6 connects the sensor Acquisition Circuit 3, the sensor
Acquisition Circuit 3 is connected with sensor, and the sensor is existing domestic achievable acquisition data.
First operational amplifier circuit 5 includes two LM324 components, and the input terminal of LM324 component described in two is all connected with simulation
On the RS2253 chip of ON-OFF control circuit 4, the output end of LM324 component described in two connects the governor circuit 1
On 7 pins of STC15F104E.
When it is implemented, being controlled after the signal enhanced processing that the analog switch control circuit 4 passes through the first operational amplifier circuit 5
Governor circuit 1 processed assigns data acquisition instructions, and governor circuit 1 assigns transmission instruction, the sensing to sensor Acquisition Circuit 3 again
Device Acquisition Circuit 3 is by the collected data information of sensor by being transferred to institute after the signal enhanced processing of the second operational amplifier circuit 6
It states and is analyzed and processed in governor circuit 1, governor circuit 1 is connect the information that processing is completed by the RS485 of 485 communicating circuits 2 again
Port transmission carries out display operation into host computer, then is handled by PC control governor circuit 1 signal of acquisition.And
It controls analog switch control circuit 4 and closes acquisition system in due course.
The present invention realizes the transformation of resistive voltage by electric-bridge circuit, is adjusted signal by the first operational amplifier circuit
Afterwards, level signal is converted to by frequency signal by analog switch control circuit and the second operational amplifier circuit, is given by single 5V power supply
Whole system power supply, all device parameter performances are, it can be achieved that the state of whole plate electrical component in the range of current domestics
Productionization can be realized by analog switch control circuit for mark by 8 MCU of STC of domestic brand as main control chip
The full automatic calibration of quasi- resistance value can realize that the calibration of single or multiple nodes, self ID are matched by RS485 duplex bus networking
It sets and signal acquisition, may also pass through the acquisition that preset configuration carries out signal by RS422 either simplex interface, signal sampling rate is greater than
10HZ。
It is emphasized that embodiment of the present invention be it is illustrative, without being restrictive, therefore the present invention is simultaneously
It is not limited to embodiment described in specific embodiment, it is all to be obtained according to the technique and scheme of the present invention by those skilled in the art
Other embodiments, also belong to the scope of protection of the invention.
Claims (7)
1. a kind of sensing data acquisition processing system characterized by comprising
Governor circuit (1), the governor circuit (1) are used to handle the data-signal of analysis input and make feedback；
Analog switch control circuit (4), the analog switch control circuit (4) connect the governor circuit (1), for described
Governor circuit (1) assigns control instruction；
Sensor Acquisition Circuit (3), one end of the sensor Acquisition Circuit (3) connect the governor circuit (1), and the other end connects
It is connected to sensor, is used for the collected data signal transmission of sensor into the governor circuit (1)；
One end of 485 communicating circuits (2), 485 communicating circuit (2) connects the governor circuit (1), and the other end is connected with
Position machine carries out display and checks for the obtained data of governor circuit (1) analysis to be transmitted in host computer；
Analog switch control circuit (4) control governor circuit (1) assigns data acquisition instructions, the sensor Acquisition Circuit
(3) the collected data information transfer of sensor is analyzed and processed into governor circuit (1), then by 485 communicating circuits (2)
It is transmitted in host computer and carries out display operation.
2. a kind of sensing data acquisition processing system according to claim 1, it is characterised in that: the governor circuit
(1) it is additionally provided between analog switch control circuit (4) the first operational amplifier circuit (5), first operational amplifier circuit (5) is used for
The command signal of analog switch control circuit (4) is amplified and is processed and transmitted in governor circuit (1).
3. a kind of sensing data acquisition processing system according to claim 1, it is characterised in that: the governor circuit
(1) be additionally provided between sensor Acquisition Circuit (3) the second operational amplifier circuit (6), second operational amplifier circuit (6) for pair
Sensor Acquisition Circuit (3) collect data-signal amplify processing after and be transmitted in the governor circuit (1).
4. a kind of sensing data acquisition processing system according to claim 1, it is characterised in that: the governor circuit
(1) main control chip is STC15F104E.
5. a kind of sensing data acquisition processing system according to claim 4, it is characterised in that: the 485 communication electricity
The chip on road (2) is GM485E, and B pin and A pin are connected with RS485 interface, and the RS485 interface connection is described upper
Machine, RO, RE of 485 communicating circuit (2) connect the governor circuit (1) with DI pin.
6. a kind of sensing data acquisition processing system according to claim 4, it is characterised in that: the analog switch control
The chip of circuit (4) processed is RS2253, and 2 pins connect 7 pins of the governor circuit (1), and 6 pins connect the master control
5 pins of circuit (1).
7. a kind of sensing data acquisition processing system according to claim 4, it is characterised in that: the first amplifier electricity
The amplifier component on road (5) is LM324, and the amplifier component of the second amplifier component (6) is OP07, first operational amplifier circuit
(5) output end connects 7 pins of the governor circuit (1), and the output end of second operational amplifier circuit (6) connects the simulation
The input terminal of 5 pins of ON-OFF control circuit (4), second operational amplifier circuit (6) connects the sensor Acquisition Circuit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412944.2A CN110007638A (en) | 2019-05-17 | 2019-05-17 | A kind of sensing data acquisition processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412944.2A CN110007638A (en) | 2019-05-17 | 2019-05-17 | A kind of sensing data acquisition processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110007638A true CN110007638A (en) | 2019-07-12 |
Family
ID=67177259
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910412944.2A Pending CN110007638A (en) | 2019-05-17 | 2019-05-17 | A kind of sensing data acquisition processing system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2755579Y (en) * | 2004-09-23 | 2006-02-01 | 上海隆延测控信息技术有限公司 | Multifunctional pen vibration measuring device |
| CN202018346U (en) * | 2011-04-18 | 2011-10-26 | 北京航天正信科技有限公司 | Temperature acquisition module with automatic fault diagnosis function |
| CN106249721A (en) * | 2016-08-31 | 2016-12-21 | 上海博源自动化控制系统有限公司 | A kind of MES data collection based on B/S framework and the system of issue |
| CN205861114U (en) * | 2016-07-19 | 2017-01-04 | 上海石油天然气有限公司 | The control circuit of induction system and control system under water |
| CN107505618A (en) * | 2017-08-31 | 2017-12-22 | 安徽信息工程学院 | Automobile preposition detects the device of section width |
| CN209784791U (en) * | 2019-05-17 | 2019-12-13 | 天津破风者科技有限公司 | Sensing data acquisition and processing system |
-
2019
- 2019-05-17 CN CN201910412944.2A patent/CN110007638A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2755579Y (en) * | 2004-09-23 | 2006-02-01 | 上海隆延测控信息技术有限公司 | Multifunctional pen vibration measuring device |
| CN202018346U (en) * | 2011-04-18 | 2011-10-26 | 北京航天正信科技有限公司 | Temperature acquisition module with automatic fault diagnosis function |
| CN205861114U (en) * | 2016-07-19 | 2017-01-04 | 上海石油天然气有限公司 | The control circuit of induction system and control system under water |
| CN106249721A (en) * | 2016-08-31 | 2016-12-21 | 上海博源自动化控制系统有限公司 | A kind of MES data collection based on B/S framework and the system of issue |
| CN107505618A (en) * | 2017-08-31 | 2017-12-22 | 安徽信息工程学院 | Automobile preposition detects the device of section width |
| CN209784791U (en) * | 2019-05-17 | 2019-12-13 | 天津破风者科技有限公司 | Sensing data acquisition and processing system |
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