CN106371346A - NEXT system real-time monitoring system based on ARM - Google Patents
NEXT system real-time monitoring system based on ARM Download PDFInfo
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- CN106371346A CN106371346A CN201510442697.2A CN201510442697A CN106371346A CN 106371346 A CN106371346 A CN 106371346A CN 201510442697 A CN201510442697 A CN 201510442697A CN 106371346 A CN106371346 A CN 106371346A
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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
- G05B19/0428—Safety, monitoring
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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
- G05B2219/25—Pc structure of the system
- G05B2219/25341—Single chip programmable controller
Abstract
The invention discloses an NEXT system real-time monitoring system based on ARM, which comprises an upper computer monitoring center, ARM main control nodes and PIC single chip microcomputer sub nodes, wherein the upper computer monitoring center uses a virtual instrument to store and display data of each node, and send a query command, a control command and a linkage command; each ARM main control node comprises a CPU main control chip, an XYCN bus main engine circuit, a debugging serial port circuit, a power circuit and a reset circuit; the ARM main control node is connected with each sub node via the XYCN bus for realizing functions of communication, data acquisition and control command sending, carrying out conversion between an XYCN bus protocol and an Ethernet protocol and realizing communication with the upper computer monitoring center; and each PIC single chip microcomputer sub node comprises a switch signal input circuit, a switch signal output circuit, an analog signal input circuit, an analog signal output circuit, and a PIC single chip microcomputer, data acquired in the field are sent to the ARM main control node via the XYCN bus, and the control command of the XYCN bus is received at the same time.
Description
Technical field
The invention belongs to the concrete application in industrial automation system field, more particularly, to a kind of next series real-time monitoring system based on arm.
Background technology
Monitoring system is an important component part of automated system.Monitoring system be by modernization information acquisition system based on, communication and computer network system be support, with information management and decision support system as core, by advanced sensors technology, e measurement technology, the married automated system of automatic control technology.Its effect is by the supervision of live operation equipment and control, to realize data acquisition, equipment controls, measurement, parameter regulation and various types of signal analysis, the function of reporting to the police.With the development of social constantly progressive and automatic technology, increasing occasion needs to apply monitoring system, and the requirement more and more higher to monitoring system.Sequential process tight in industrial processes controls, accurate motor control, system exception and alarm and process require that monitoring system has high environmental suitability, high real-time and high reliability.In intelligent building, domestic security monitors, and requires monitoring system to connect up convenient, simple, low cost of powering in centralized automatic meter-reading again.Therefore, how fully to merge currently fast-developing embedded technology, communication technology, the advanced technology such as sensor, make network real-time monitoring system become more flexibly and efficient, be a problem needing further investigation.
Because Ethernet can not meet the requirement of the interoperability manipulation of real-time Communication for Power, complicated engineering model configuration and equipment room on the application layer, also it is unsatisfactory for industry spot long range propagation, essential safety, the requirement of reliability aspect.Fieldbus is to aim at the design of industry spot observing and controlling layer equipment communication, is the technology cut the garment according to the figure for automatization, have passed through the development of decades, technically day by day ripe, market is widely used.Measurement Network based on virtual instrument and network technology will become the important component part of scientific research and manufacture automatic control system, and the measurement and control network based on virtual instrument will be the main trend of remote testing technology development.
In order to realize a kind of series real-time monitoring system of the next based on arm, save design cost, the present invention is directed to that requirement of real-time height of monitoring system, long haul communication, node be numerous, routing complexity, power supply bother, the problem of high cost, using one network real-time monitoring system of xycn bus and virtual instrument technology.This system for field intelligent node adopts pic single-chip microcomputer stable and reliable for performance, on hardware, input/output signal is isolated with single chip machine controlling circuit, improves the anti-interference of system；Single Chip Microcomputer (SCM) program data acquisition, relay driving, the function of xycn slave communication are write on software, this system adopts twisted-pair communication, and adopts bus-powered, host node adopts arm7 as embedded cpu.This system has that low in energy consumption, reliable and stable, real-time is good, inexpensive, extends flexible advantage.
Content of the invention
For problem present in Current software radiotechnics, in conjunction with the concrete application of network real-time monitoring system, devise a kind of series real-time monitoring system of the next based on arm.It is an object of the invention to, a kind of simple, efficient and stable performance real-time monitoring system is provided.
In order to realize said system, the present invention adopts the technical scheme that:
A kind of next series real-time monitoring system based on arm, it is characterized in that this system is made up of ipc monitor center, arm main controlled node, pic single-chip microcomputer partial node, wherein arm main controlled node includes cpu main control chip, xycn bus host circuit, debugging serial port circuit, power circuit, reset circuit, and pic single-chip microcomputer partial node includes pic single-chip microcomputer, On-off signal signal circuit, switching value output circuit, simulated measurement input circuit, analogue quantity output circuit；Pic single-chip microcomputer partial node by collection in worksite to data arm main controlled node is sent to by xycn bus, arm main controlled node passes through xycn bus receiving data, then do corresponding linkage according to the order pre-seting to process, again the information of each pic single-chip microcomputer partial node is sent to ipc monitor center by Ethernet to be monitored, the state of virtual instrument each node of real-time monitoring that the operation of ipc monitor center is write with labview language, report to the police by the display in real time of the information of each node and to abnormal conditions, finally store data into data base for subsequent analysis；Arm main controlled node is connected with xycn bus with each pic single-chip microcomputer partial node, is communicated using Ethernet and between ipc monitor center and arm main controlled node, and this system adopts bus-powered.
In this real-time monitoring system, described xycn bus is a kind of equipment end serial dual bus communication system with function of supplying power, it has the characteristics that, and communication bus is powered, place capacity is big, communication speed is high, wiring convenient (rv1.5mm twisted-pair feeder), strong antijamming capability.Single device can provide the up to electric current of 500ma.By the interrupt mode of optimization it is ensured that in the case of 400 equipment networks, any device events call time less than 50ms, multipoint unit reports and extracts one by one, network conflict will not be produced simultaneously.
In this real-time monitoring system, described ipc monitor center adopts the virtual instrument running in pc machine, for storing, showing the data of each node and send querying command, control command and linkage command；Upper computer software adopts modularized design, communicated with arm main controlled node using tcp/ip agreement, using data base, numerous data is managed and stores, according to function and hierarchical structure, complicated vi is divided into several sub- vi, for improving operational efficiency, meet the real-time of particular task, using multithreading operation, using the event-driven mechanism of labview, when design cycle, the amount unrelated with circulation is placed on outside circulation.
In this real-time monitoring system, arm main controlled node includes cpu main control chip, xycn bus host circuit, debugging serial port circuit, power circuit, reset circuit, described arm main controlled node runs embedded real-time operating system using the microcontroller lpc2368 based on arm7tdmi-s structure as main control chip, use xycn bus communication with each partial node, gathered data, send coordinated signals order, and field bus protocol is realized communicating with host computer with Ethernet protocol conversion；Described xycn bus host circuit completes the modulation /demodulation function of digital communication using xy100 chip；The serial ports 0 of arm is connected by described debugging serial port circuit with the serial ports of computer, and the isp completing application program downloads；Input voltage switching power source chip lm2576-5v is converted into 5v by described power circuit, for bus-powered；Described reset circuit employs max708 integrated chip, produces reset signal and exports in energising and power-off.
In this software radio system, described pic single-chip microcomputer partial node includes pic single-chip microcomputer, On-off signal signal circuit, switching value output circuit, simulated measurement input circuit, analogue quantity output circuit, pic single-chip microcomputer partial node be used for by collection in worksite to data pass through xycn bus and be sent to arm main controlled node, and receive the control command control field apparatus of xycn bus；Pic16f690 selected by described pic single-chip microcomputer, and single-chip microcomputer is formed a nucleus module with network service chip；Described On-off signal signal circuit adopts tlp521 optical coupling isolation circuit, and input connects outside input, and io connects single-chip microcomputer process chip；Described switching value output circuit can be effectively realized isolation using magnetic latching relay；From the conventional 0-10v of industry, the signal of 4-20ma, input is voltage input end to described simulated measurement input circuit, and ad_ra2 is adc input；Described analogue quantity output circuit adopts the max5258 chip of maxim company, is communicated with cpu using spi bus simultaneously..
The invention has the beneficial effects as follows:
A kind of next series real-time monitoring system based on arm, it is characterized in that, this system is by ipc monitor center, arm main controlled node, pic single-chip microcomputer partial node three part is constituted, ipc monitor center is using the virtual instrument running in pc machine, for storing, show the data of each node and send querying command, control command and linkage command, arm main controlled node is attached with each partial node by xycn bus, realize communication, gathered data, send the function of coordinated signals order, and carry out converting the communication realized and ipc monitor center between by xycn bus protocol and Ethernet protocol, pic single-chip microcomputer partial node by collection in worksite to data arm main controlled node is sent to by xycn bus, receive the control command of xycn bus simultaneously.This system structure is clearly simple, and low in energy consumption, reliable and stable, real-time is good, inexpensive and extends flexibly.
Brief description
Below in conjunction with the drawings and specific embodiments, the present invention is further explained.
Fig. 1 is real-time monitoring system overall framework figure；
Fig. 2 is upper computer software system block diagram；
Fig. 3 is xycn bus host interface circuit figure；
Fig. 4 is debugging serial ports hardware circuit diagram；
Fig. 5 is power circuit diagram；
Fig. 6 is max708 reset circuit figure；
Fig. 7 is the optical coupling isolation circuit figure of On-off signal；
Fig. 8 is simulated measurement input circuit figure.
Specific embodiment
The specific embodiment of the present invention is: a kind of described next series real-time monitoring system based on arm, first, pic single-chip microcomputer partial node by collection in worksite to data arm main controlled node is sent to by xycn bus, then, arm main controlled node passes through xycn bus receiving data, further, arm main controlled node does corresponding linkage according to the order pre-seting and processes, again the information of each pic single-chip microcomputer partial node is sent to ipc monitor center by Ethernet to be monitored, in the process, the virtual instrument that the operation of ipc monitor center is write with labview language, the state of ipc monitor center each node of real-time monitoring, report to the police by the display in real time of the information of each node and to abnormal conditions, and store data into data base for subsequent analysis.
Fig. 1 is real-time monitoring system overall framework figure, and this system comprises three parts: ipc monitor center, arm main controlled node, pic single-chip microcomputer partial node；Ipc monitor center adopts the virtual instrument running in pc machine, for storing, showing the data of each node and send querying command, control command and linkage command；Arm main controlled node includes cpu main control chip, xycn bus host circuit, debugging serial port circuit, power circuit, reset circuit；Arm main controlled node is attached with each partial node by xycn bus, realizes communication, gathered data, the function of transmission coordinated signals order, and xycn bus protocol and Ethernet protocol are carried out converting the communication realized and ipc monitor center between；Pic single-chip microcomputer partial node includes On-off signal signal circuit, switching value output circuit, simulated measurement input circuit, analogue quantity output circuit, pic single-chip microcomputer, by collection in worksite to data arm main controlled node is sent to by xycn bus, simultaneously receive xycn bus control command.
Fig. 2 is upper computer software system block diagram, upper computer software adopts modularized design, communicated with arm main controlled node using tcp/ip agreement, using data base, numerous data is managed and stores, according to function and hierarchical structure, complicated vi is divided into several sub- vi, for improving operational efficiency, meet the real-time of particular task, using multithreading operation, using the event-driven mechanism of labview, when design cycle, the amount unrelated with circulation is placed on outside circulation.
Fig. 3 is xycn bus host interface circuit figure, and xy100 chip is xycn bus host special IC, completes the modulation /demodulation function of digital communication.Complicated in view of host circuit, for increasing main frame capacity of resisting disturbance, bus driver is isolated by controller with Single Chip Microcomputer (SCM) system, and the txd of cpu, rxd, transmitting-receiving control input chip through optocoupler, system uses 12v～36v power supply (according to communication distance, equipment electricity consumption situation determines).In terms of data is activation, controlled by rt/co and open output modulation, send data through sending caching, modulation and drive bush, busl signal, drive output triode to complete the full width voltage modulated of data.In terms of data receiver, controlled by rt/con and close external output modulation to pipe, open reception demodulator, the low-power consumption linear voltage regulator of chip internal is chip and external circuit provides 7v regulated power supply.And the 30ma electric current loop modulation voltage to bus offer 6.5v, the level signal that the received demodulator of current modulated of equipment, order caching are received by rxd output.Receipt signal is inputted by revini, and rc1, rc2 connect 1000pf electric capacity and vibrate in receiving signal demodulation.
Fig. 4 is debugging serial ports hardware circuit diagram, the download program of system adopts isp downloading mode, the serial ports 0 of arm is connected with the serial ports of computer, reset pin and eint0 pin are as shown in Figure 4 with the connected mode of serial ports, jp302 and jp303 is wire jumper, when needing to download, wire jumper is connected, when download program, the 4th pin dtr of db9 and the 7th pin dsr makes arm reset (mcu_nreset is low level) and so that eint0 is low level, now arm enters isp pattern, and program is downloaded to by serial ports in the flash of arm.
Fig. 5 is power circuit diagram, and system power supply voltage range is direct current 20v-36v, needs to select corresponding voltage according to actual bus requirements, this voltage is delivered to xycn bus main leaf after treatment, for bus-powered；And the running voltage of control circuit is 5v and 3.3v in this system.Therefore, input voltage switching power source chip lm2576-5v is converted into 5v by the system, and in figure cnr201 is varistor; for protection circuit, prevent input voltage excessive, diode is used for preventing reverse power connection; f201 is ptc, prevents subsequent conditioning circuit short circuit from burning power supply and other circuit.With ld1117, the photovoltaic conversion of 5v is become 3.3v again.
Fig. 6 is max708 reset circuit figure, electrification reset is used in this circuit system, when just accessing power supply, 1 foot voltage slowly rises, and 7 feet will export low level, 7 foot output high level when 1 foot voltage rises above 4.65v, therefore, the low level signal of one fixed width will be exported in power up, this low level signal is transported to coms phase inverter, through two-stage anti-phase after respectively reset signal is delivered to arm and Ethernet chip.
Fig. 7 is the optical coupling isolation circuit figure of On-off signal, and using conventional tlp521, input connects outside input to optocoupler, and io connects single-chip microcomputer.When switch input terminal mouth " input " closes, the LEDs ON in optocoupler, phototriode saturation conduction, outfan io is low level；Conversely, when " input " disconnects, light emitting diode goes out, audion ends, and io is pulled to high level by resistance.
Fig. 8 is simulated measurement input circuit figure, and analog signalses are from the conventional 0-10v of industry, the signal of 4-20ma.As illustrated, input is voltage input end, ad_ra2 is adc input；When gathering signal for 0-10v, it is directly accessed the two ends of amplifier, if input voltage is vi, then according to amplifying circuit parameter, be calculated voltage output.
General technical staff of the technical field of the invention also will readily appreciate that in addition to the foregoing, and the specific embodiment of here explanation and diagram can change combination further.Although the present invention is to give diagram explanation with regard to its preferred embodiment, person skilled in the art it is recognized that in the spirit and scope of the present invention being limited in the attached claims, also can make multiple change and variation to the present invention.
Claims (4)
1. a kind of next series real-time monitoring system based on arm is it is characterised in that this system comprises three parts: ipc monitor center, arm main controlled node, pic single-chip microcomputer partial node；Pic single-chip microcomputer partial node by collection in worksite to data arm main controlled node is sent to by xycn bus, arm main controlled node passes through xycn bus receiving data, then do corresponding linkage according to the order pre-seting to process, again the information of each pic single-chip microcomputer partial node is sent to ipc monitor center by Ethernet to be monitored, the state of virtual instrument each node of real-time monitoring that the operation of ipc monitor center is write with labview language, report to the police by the display in real time of the information of each node and to abnormal conditions, finally store data into data base for subsequent analysis；Arm main controlled node is connected with xycn bus with each pic single-chip microcomputer partial node, is connected using Ethernet and is communicated between ipc monitor center and arm main controlled node, and system adopts bus-powered.
2. real-time monitoring system as claimed in claim 1 is it is characterised in that the virtual instrument that run using machine on pc of described ipc monitor center, for storing, showing the data of each node and send querying command, control command and linkage command；Upper computer software adopts modularized design, communicated with arm main controlled node using tcp/ip agreement, using data base, numerous data is managed and stores, according to function and hierarchical structure, complicated vi is divided into several sub- vi, for improving operational efficiency, meet the real-time of particular task, using multithreading operation, using the event-driven mechanism of labview, when design cycle, the amount unrelated with circulation is placed on outside circulation.
3. real-time monitoring system as claimed in claim 1, it is characterized in that, described arm main controlled node includes cpu main control chip, xycn bus host circuit, debugging serial port circuit, power circuit, reset circuit, and arm main controlled node is used for the process to field data and field bus protocol and is converted with Ethernet protocol；Described arm main controlled node is using the microcontroller lpc2368 based on arm7tdmi-s structure as main control chip；Described xycn bus host circuit completes the modulation /demodulation function of digital communication using xy100 chip；The serial ports 0 of arm is connected by described debugging serial port circuit with the serial ports of computer, and the isp completing application program downloads；Input voltage switching power source chip lm2576-5v is converted into 5v by described power circuit, for bus-powered；Described reset circuit employs max708 integrated chip, produces reset signal and exports in energising and power-off.
4. real-time monitoring system as claimed in claim 1, it is characterized in that, described pic single-chip microcomputer partial node includes pic single-chip microcomputer, On-off signal signal circuit, switching value output circuit, simulated measurement input circuit, analogue quantity output circuit, pic single-chip microcomputer partial node be used for by collection in worksite to data pass through xycn bus and be sent to arm main controlled node, and receive the control command control field apparatus of xycn bus；Pic16f690 selected by described pic single-chip microcomputer, and single-chip microcomputer is formed a nucleus module with network service chip；Described On-off signal signal circuit adopts tlp521 optical coupling isolation circuit, and input connects outside input, and io connects single-chip microcomputer process chip；Described switching value output circuit can be effectively realized isolation using magnetic latching relay；From the conventional 0-10v of industry, the signal of 4-20ma, input is voltage input end to described simulated measurement input circuit, and ad_ra2 is adc input；Described analogue quantity output circuit adopts the max5258 chip of maxim company, is communicated with cpu using spi bus simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510442697.2A CN106371346A (en) | 2015-07-25 | 2015-07-25 | NEXT system real-time monitoring system based on ARM |
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| CN201510442697.2A CN106371346A (en) | 2015-07-25 | 2015-07-25 | NEXT system real-time monitoring system based on ARM |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621817A (en) * | 2017-11-10 | 2018-01-23 | 天津子任科技有限公司 | Distributed control means and system |
| CN109116781A (en) * | 2018-09-03 | 2019-01-01 | 中国汽车工程研究院股份有限公司 | Ethernet high-speed data acquistion system |
| CN109672477A (en) * | 2019-01-29 | 2019-04-23 | 天津师范大学 | A kind of acoustic array power supply and order downlink multiplex system and its control method based on pulse density modulated |
| CN113572687A (en) * | 2021-07-22 | 2021-10-29 | 无锡江南计算技术研究所 | High-order router self-adaptive parallel starting method based on event-driven mechanism |
| CN114967560A (en) * | 2022-06-06 | 2022-08-30 | 嘉兴技领信息技术有限公司 | Communication interface circuit with low power consumption control |
-
2015
- 2015-07-25 CN CN201510442697.2A patent/CN106371346A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621817A (en) * | 2017-11-10 | 2018-01-23 | 天津子任科技有限公司 | Distributed control means and system |
| CN109116781A (en) * | 2018-09-03 | 2019-01-01 | 中国汽车工程研究院股份有限公司 | Ethernet high-speed data acquistion system |
| CN109672477A (en) * | 2019-01-29 | 2019-04-23 | 天津师范大学 | A kind of acoustic array power supply and order downlink multiplex system and its control method based on pulse density modulated |
| CN109672477B (en) * | 2019-01-29 | 2023-08-29 | 四川天源宏创科技有限公司 | Acoustic array power supply and command downlink multiplexing system based on pulse density modulation and control method thereof |
| CN113572687A (en) * | 2021-07-22 | 2021-10-29 | 无锡江南计算技术研究所 | High-order router self-adaptive parallel starting method based on event-driven mechanism |
| CN114967560A (en) * | 2022-06-06 | 2022-08-30 | 嘉兴技领信息技术有限公司 | Communication interface circuit with low power consumption control |
| CN114967560B (en) * | 2022-06-06 | 2023-11-07 | 嘉兴技领信息技术有限公司 | Communication interface circuit with low power consumption control |
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Application publication date: 20170201 |