CN207337124U - A kind of data acquisition circuit - Google Patents
A kind of data acquisition circuit Download PDFInfo
- Publication number
- CN207337124U CN207337124U CN201721072744.XU CN201721072744U CN207337124U CN 207337124 U CN207337124 U CN 207337124U CN 201721072744 U CN201721072744 U CN 201721072744U CN 207337124 U CN207337124 U CN 207337124U
- Authority
- CN
- China
- Prior art keywords
- module
- data acquisition
- data
- serial
- serial data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Programmable Controllers (AREA)
Abstract
It the utility model is related to data collecting field, and in particular to a kind of data acquisition circuit.The data acquisition circuit includes power module, input terminal J5 and output terminal J6, further includes serial port data acquisition module, main control module, wireless transport module；Serial data A1, for receiving or sending serial data A1, can be converted into serial data A2 or serial data A2 is converted into A1 by serial port data acquisition module；The main control module, for handling and replicating serial data A2, the serial data A2 of duplication is sent to wireless transport module and level switch module；The power module, input terminal J5, output terminal J6, serial port data acquisition module, main control module, wireless transport module are electrically connected.The circuit can carry out industrial control equipment not influencing the data transfer between industrial control equipment and industry control on-screen data display while data acquisition.
Description
Technical field
It the utility model is related to data collecting field, and in particular to a kind of data acquisition circuit.
Background technology
Current industrial control equipment has PLC controller and industry control on-screen data display substantially, can pass through between both
For Serial Port Line into row data communication, screen sends inquiry data command by receiving TX lines, wherein the address with inquiry data；
After PLC controller receives instruction, the data of corresponding address are returned by RX lines, complete the communication of data.In order to equipment
Working status is understood, and the collection to serial data is essential.Collection to serial data must be in Serial Port Line
On data collector is installed, the circuit in data collector completes the collection of serial data；But data collector is once sent out
Raw failure or power-off, just will disconnect electrical connection, influence the number between PLC controller and screen between PLC controller and screen
According to exchange.
The content of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of this utility model is to provide a kind of data to adopt
Collector, which does not influence industrial control equipment while can carrying out data acquisition to industrial control equipment and industry control on-screen data is shown
Data transfer between device.
The utility model is realized by following technology：
A kind of data acquisition circuit, including power module, input terminal J5 and output terminal J6, it is characterised in that：Further include string
Mouth data acquisition module, main control module, wireless transport module；The input terminal J5 is connected with PLC；The serial port data acquisition mould
Swapped between block and PLC by serial data A1；The output terminal J6 is connected with display screen；The serial port data acquisition mould
Swapped between block and display screen by serial data A1；Pass through string between the serial port data acquisition module and main control module
Mouth data A2 is swapped；The power module provides power supply for data acquisition circuit；Serial port data acquisition module, for receiving
Or serial data A1 is sent, for serial data A1 to be converted into serial data A2 or for serial data A2 to be converted into serial ports
Data A1；The main control module, including MCU, the MCU are used to handle serial data A2, by serial data A2 by handling, dividing
Analyse, extract and send to wireless transport module and serial port data acquisition module after useful information；The serial port data acquisition module
Include the relay module connected for control signal J5 with output terminal J6.
Wherein, the serial port data acquisition module further includes the level switch module for carrying out serial data conversion, institute
Level switch module is stated to be electrically connected with relay module.
Wherein, the level switch module includes the MAX3232 chips for level conversion, and the main control module includes
STM32 microcontrollers；Pin R2OUT, R1OUT, T2IN, T1IN of the MAX3232 chips pins with STM32 microcontrollers respectively
PB11, PA3, PB10, PA2 are electrically connected.
Wherein, the wireless transport module includes being used for the CC2530 chips that ZigBee is wirelessly transferred, the CC2530 cores
Pin P0_2, P0_3 of piece are electrically connected with pin PA9, PA10 of MCU respectively.
Wherein, the power module includes power regulator module.
The beneficial effects of the utility model：
Data friendship is carried out by TX lines and RX lines between PLC controller and industry control on-screen data display under normal circumstances
Change, the data of transmission are serial data A1 in TX lines and RX lines；In PLC controller and industry control on-screen data display data serial ports
The data acquisition circuit of the utility model is installed, to realize data acquisition on line.The data acquisition circuit of the utility model, integrates
Serial port data acquisition module, main control module, wireless transport module；Serial port data acquisition module is used to receiving or sending serial ports number
According to A1, serial data A1 can be converted into serial data A2 or serial data A2 is converted into A1；The main control module includes
MCU, the MCU are used to handle and replicate serial data A2, and the serial data A2 of duplication is sent to wireless transport module and electricity
Flat modular converter；Since in main control module, MCU receives the serial data A2 of level switch module transmission, then MCU is produced
Data receiver interrupts and serial data A2 is extracted, and at the same time serial data A2 is copied to transmission data buffering by MCU
Area, and at once data sending to wireless transport module；The propagation delay time for being passed through MCU due to period serial data substantially may be used
To ignore, to reach the data that can not influenced while data acquisition between PLC controller and industry control on-screen data display
The effect of transmission speed.Due to relay module can in the case of data acquisition circuit failure or power-off by input terminal J5 and
Output terminal J6 is changed into direct-connected, so as to not influence the data exchange between PLC controller and screen.
Brief description of the drawings
Using attached drawing, the utility model is described in further detail, but the embodiment in attached drawing is not formed to the utility model
Any restrictions, without creative efforts, can also be according to following attached for those of ordinary skill in the art
Figure obtains other attached drawings.
Fig. 1 is the serial port data acquisition module circuit diagram of the utility model；
Fig. 2 is the main control module circuit diagram of the utility model；
Fig. 3 is the power module circuitry figure of the utility model；
Fig. 4 is the wireless transport module circuit body of the utility model.
Fig. 5 is the schematic diagram of connection relation between the PLC controller of the utility model and industry control on-screen data display.
Reference numeral
Serial port data acquisition module -- 1, relay module -- 11, relay -- 12, control relay circuit -- 13, level
Modulus of conversion -- 14, main control module -- 2, power module -- 3, power regulator module -- 31, wireless transport module -- 4.
Embodiment
Illustrate the embodiment of the utility model below by way of specific instantiation, those skilled in the art can be by this theory
Content disclosed by bright book understands other advantages and effect of the utility model easily.The utility model can also be by addition
Different embodiments are embodied or practiced, and the various details in this specification can also be based on different viewpoints with answering
With carrying out various modifications or alterations under the spirit without departing from the utility model.
It should be noted that structure, ratio, size depicted in this specification institute accompanying drawings etc., only coordinating
The bright revealed content of book, so that those skilled in the art understands and reads, being not limited to the utility model can implement
Qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size,
In the case where not influencing the effect of the utility model can be generated and the purpose that can reach, should all still fall disclosed in the utility model
Technology contents obtain and can cover in the range of.Meanwhile in this specification it is cited as " on ", " under ", "left", "right", " in
Between " and " one " etc. term, be merely convenient to understanding for narration, and be not used to limit the enforceable scope of the utility model, its
Relativeness is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable category of the utility model.
As shown in Figures 1 to 5, a kind of data acquisition circuit, including power module 3, input terminal J5 and output terminal J6, it is special
Sign is：Further include serial port data acquisition module 1, main control module 2, wireless transport module 4；Input terminal J5 is connected with PLC；It is described
Swapped between serial port data acquisition module 1 and PLC by serial data A1；Output terminal J6 is connected with display screen；The string
Swapped between mouth data acquisition module 1 and display screen by serial data A1；The serial port data acquisition module 1 and master control
Swapped between module 2 by serial data A2；Serial port data acquisition module 1, for receiving or sending serial data A1, is used
In serial data A1 is converted into serial data A2 or for serial data A2 to be converted into A1；The main control module 2, including
MCU, the MCU are used to handle and replicate serial data A2, by the serial data A2 of duplication through processing, analyze, extract it is useful
Information after send to wireless transport module 4 and serial port data acquisition module 1；Serial port data acquisition module 1 includes for controlling
The relay module 11 that input terminal J5 processed is connected with output terminal J6.
Specifically, carried out under normal circumstances between PLC controller and industry control on-screen data display by TX lines and RX lines
The data of transmission are serial data A1 in data exchange, TX lines and RX lines；In PLC controller and industry control on-screen data display number
According to the data acquisition circuit that the utility model is installed on Serial Port Line, to realize data acquisition.The data acquisition electricity of the utility model
Road, is integrated with serial port data acquisition module 1, main control module 2, wireless transport module 4；Serial port data acquisition module 1 is used to receive
Or serial data A1 is sent, serial data A1 can be converted into serial data A2 or serial data A2 is converted into A1；The master
Control module 2 includes MCU, and the MCU is used to handle and replicate serial data A2, and the serial data A2 of duplication is sent to wireless and is passed
Defeated module 4 and level switch module 14；Since in main control module 2, MCU receives the serial ports number of the transmission of level switch module 14
According to A2, then MCU generations data receiver, which interrupts, simultaneously extracts serial data A2, and at the same time MCU answers serial data A2
Make and send data buffer zone, and data sending is gone out at once；Since period serial data passes through the propagation delay time of MCU
Substantially it can ignore, can not influenced while data acquisition between PLC controller and industry control on-screen data display with reaching
Data transmission bauds effect.Due to relay module 11 can data acquisition circuit failure or power-off in the case of will be defeated
Enter to hold J5 and output terminal J6 to be changed into direct-connected, so as to not influence the data exchange between PLC controller and screen.
Specifically, when data acquisition circuit works normally, relay module 11 disconnects input terminal J5, the electricity of output terminal J6
Gas connects, and input terminal J5, output terminal J6 and data acquisition circuit are connected, and realizes data acquisition；When data acquisition circuit breaks
When electricity or failure, relay module 11 disconnects the electrical connection of input terminal J5, output terminal J6 and data acquisition circuit, again will be defeated
Enter to hold J5, output terminal J6 to connect.
Specifically, the relay module 11 includes relay 12 and the relay control for driving relay 12 to be opened and closed
Circuit 13, the relay module 11 are connected between input terminal J5, output terminal J6, in actual use, it is contemplated that simultaneous
Hold the direct-connected property of legacy data line, ensure that collector can be into row data communication in the case where not powering on.In data acquisition
Circuit do not power on or failure in the case of circuit between PLC controller and industry control on-screen data display realized by relay 12
It is direct-connected；After data acquisition circuit has powered on, by relay 12 circuit switching, and by serial port data acquisition module 1,
MCU carries out data acquisition.
Specifically, the serial port data acquisition module 1 further includes the level switch module for carrying out serial data conversion
14, the level switch module 14 is electrically connected with relay module 11, and relay module 11 is by between input terminal J5, output terminal J6
Electrical connection disconnect, and serial data A1 is transmitted to level switch module 14 and carries out level conversion, i.e., by serial data A1
It is converted into serial data A2.
As depicted in figs. 1 and 2, specifically, the level switch module 14 includes the MAX3232 cores for level conversion
Piece, the MCU use STM32 microcontrollers；Pin R2OUT, R1OUT, T2IN, T1IN of the MAX3232 chips respectively with MCU
Pin PB11, PA3, PB10, PA2 be electrically connected, the data cable that wherein PLC controller is transmitted to industry control on-screen data display is
RX lines, the data cable that industry control on-screen data display is transmitted to PLC controller are TX lines, the pin R1IN of MAX3232 chips,
Connected between pin PA3, PA2 of R1OUT, T1IN, MCU by TX lines, the pin PB10 of R2IN, R2OUT, T2IN, MCU,
Connected between PB11 by RX lines.
As shown in figure 4, specifically, the wireless transport module 4 includes being used for the CC2530 chips that are wirelessly transferred of ZigBee,
Pin P0_2, P0_3 of the CC2530 chips are electrically connected with pin PA9, PA10 of MCU respectively, and signal is passed through pin by MCU
Pin P0_2, P0_3 that PA9, PA10 are transmitted to CC2530 chips carry out wireless data transmission.
As shown in figure 3, specifically, the power module 3 includes power regulator module 31, guarantee data acquisition circuit is in work
The stability that power supply is powered in work.
Finally it should be noted that above example is only illustrating the technical solution of the utility model, rather than to this reality
With the limitation of novel protected scope, although being explained with reference to preferred embodiment to the utility model, this area it is general
Lead to it will be appreciated by the skilled person that can be to the technical solution of the utility model technical scheme is modified or replaced equivalently, without departing from this
The spirit and scope of utility model technical solution.
Claims (5)
1. a kind of data acquisition circuit, including power module (3), input terminal J5 and output terminal J6, it is characterised in that：Further include string
Mouth data acquisition module (1), main control module (2), wireless transport module (4)；
The input terminal J5 is connected with PLC；The serial port data acquisition module (1) is carried out between PLC by serial data A1
Exchange；
The output terminal J6 is connected with display screen；The serial port data acquisition module (1) passes through serial data between display screen
A1 is swapped；
Swapped between the serial port data acquisition module (1) and main control module (2) by serial data A2；
The power module (3) provides power supply for data acquisition circuit；
Serial port data acquisition module (1), for receiving or sending serial data A1, for serial data A1 to be converted into serial ports number
According to A2 or for serial data A2 to be converted into serial data A1；
The main control module (2), including MCU, the MCU are used to handle and replicate serial data A2, by the serial data of duplication
A2 is sent to wireless transport module (4) and serial port data acquisition module (1) after handling, analyze, extract useful information；
The serial port data acquisition module (1) includes the relay module connected for control signal J5 with output terminal J6
(11)。
A kind of 2. data acquisition circuit according to claim 1, it is characterised in that：The serial port data acquisition module (1)
Further include the level switch module (14) for carrying out serial data conversion, the level switch module (14) and relay module
(11) it is electrically connected.
A kind of 3. data acquisition circuit according to claim 2, it is characterised in that：The level switch module (14) includes
For the MAX3232 chips of level conversion, the MCU uses STM32 microcontrollers；The pin R2OUT of the MAX3232 chips,
R1OUT, T2IN, T1IN are electrically connected with pin PB11, PA3, PB10, PA2 of MCU respectively.
A kind of 4. data acquisition circuit according to claim 3, it is characterised in that：The wireless transport module (4) includes
The CC2530 chips being wirelessly transferred for ZigBee, pin P0_2, P0_3 of the CC2530 chips pin with MCU respectively
PA9, PA10 are electrically connected.
A kind of 5. data acquisition circuit according to claim 1, it is characterised in that：The power module (3) includes power supply
Voltage stabilizing module (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721072744.XU CN207337124U (en) | 2017-08-25 | 2017-08-25 | A kind of data acquisition circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721072744.XU CN207337124U (en) | 2017-08-25 | 2017-08-25 | A kind of data acquisition circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207337124U true CN207337124U (en) | 2018-05-08 |
Family
ID=62374484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721072744.XU Active CN207337124U (en) | 2017-08-25 | 2017-08-25 | A kind of data acquisition circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207337124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173808A (en) * | 2019-05-21 | 2019-08-27 | 四川虹美智能科技有限公司 | A kind of air-conditioning host computer fault handling method, apparatus and system |
-
2017
- 2017-08-25 CN CN201721072744.XU patent/CN207337124U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173808A (en) * | 2019-05-21 | 2019-08-27 | 四川虹美智能科技有限公司 | A kind of air-conditioning host computer fault handling method, apparatus and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205038637U (en) | RS232 and RS485422 interface converter based on microprocessor | |
| CN206820735U (en) | A kind of serial communication interface function switch circuit | |
| CN103853689A (en) | Device and method of automatic switchover of USB (Universal Serial Bus) and four-line serial port UART (Universal Asynchronous Receiver Transmitter) | |
| CN204155273U (en) | A kind of multi-functional data switch based on elevator communication | |
| CN207337124U (en) | A kind of data acquisition circuit | |
| CN107871378A (en) | Fire resistant doorsets monitoring module | |
| CN206835082U (en) | Serial ports isolates communication interface circuit and electronic equipment | |
| CN207409092U (en) | Fire resistant doorsets monitoring module | |
| CN205942681U (en) | Serial communication interface that can dispose | |
| CN107508737A (en) | Radio communication device and its communication means based on EtherCAT | |
| CN205049966U (en) | Intelligence touch screen scene panel based on bus link power supply technique | |
| CN207337391U (en) | A kind of data collector | |
| CN209593402U (en) | Passive isolated form RS232 serial communication circuit | |
| CN206331281U (en) | A kind of kinematic system controls circuit | |
| CN207460184U (en) | A kind of fiber optic communications devices based on exposure machine control system | |
| CN207637147U (en) | It is a kind of based on one Uart mouthfuls of multichannel RS485 interface communication circuitries | |
| CN201904651U (en) | Communication adapter for earth leakage circuit breaker | |
| CN109683835A (en) | A kind of electronics price tag system based on POWERBUS bus | |
| CN206389594U (en) | A kind of light fixture control control output system | |
| CN205950777U (en) | Transformer station inspection robot monitor system based on centralized monitoring | |
| CN104460456B (en) | A kind of electric control system with network communicating function | |
| CN209233855U (en) | It is adapted to the industrial communication gateway of multiple power sources input | |
| CN205070989U (en) | Follow quick -witted transceiver, receiving and dispatching system and follow quick -witted receiving and dispatching system | |
| CN203812009U (en) | Instrument communication serial port multiplex control device | |
| CN209002002U (en) | A kind of interchanger with Zigbee module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |