CN109283875A - High-performance cogeneration units operation data acquisition terminal based on ARM9 framework - Google Patents
High-performance cogeneration units operation data acquisition terminal based on ARM9 framework Download PDFInfo
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- CN109283875A CN109283875A CN201811320558.2A CN201811320558A CN109283875A CN 109283875 A CN109283875 A CN 109283875A CN 201811320558 A CN201811320558 A CN 201811320558A CN 109283875 A CN109283875 A CN 109283875A
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Classifications
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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
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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
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
Abstract
The present invention provides a kind of high-performance cogeneration units operation data acquisition terminal based on ARM9 framework, is related to cogeneration units operational monitoring technical field.The acquisition terminal includes embedded hardware system based on ARM9 framework and what is embedded in the hardware system is software systems using bottom based on built-in Linux operating system；Hardware system includes ARM9 architecture processor, power supply and reset circuit, clock circuit, 64M SDRAM, 64M NAND FLASH, NOR FLASH, serial communication interface, Ethernet interface, the various physical interfaces and human-computer interaction module for corresponding to peripheral interface on LCD interface and casing；Software systems include Linux embedded operating system kernel and hardware circuit driver and upper layer data acquisition process application program.The present invention has the characteristics that high-performance, low-power consumption, small in size, multiport, multithreading.
Description
Technical field
The present invention relates to cogeneration units operational monitoring technical field more particularly to a kind of high property based on ARM9 framework
It can cogeneration units operation data acquisition terminal.
Background technique
Cogeneration of heat and power refers to will be united production in same generating set for heat and generating power.Cogeneration of heat and power is conducive to
The cascade utilization of energy can effectively facilitate unit and play odds for effectiveness and energy conservation and environmental protection advantage.Currently to cogeneration units
Real-time running state lacks on-line monitoring system, traditional thermoelectric cost-apportion method due to energy quantity and quality heat with
There is dispute in the distribution between electricity, through lacking corresponding Monitoring and supervision to power plant, being unfavorable for promoting frequently with " electricity determining by heat " mode
Into the sound development of cogeneration of heat and power enterprise.It is therefore desirable to build a kind of on-line data acquisition terminal, cogeneration units are closed
The sensor information of key point is acquired in real time, and is transmitted to remote monitoring center by the acquisition terminal equipment.
Existing cogeneration units operating parameter acquisition device generallys use 51 series monolithics or industrial control computer conduct
The hardware platform of system.Acquisition device in data set based on the exploitation of 51 series monolithics, although small in size, low in energy consumption, Yi An
Dress, but its process performance becomes the bottleneck of multisensor access, and more collection point accesses will cause data volume increase, be class to 51
The processing capacity of single-chip microcontroller brings challenges.And use industrial control computer as its performance of the data acquisition device of system hardware platform
It is powerful, but volume is big, power consumption is high, is unfavorable for installation and deployment.
Summary of the invention
It is a kind of based on ARM9 framework the technical problem to be solved by the present invention is in view of the above shortcomings of the prior art, provide
High-performance cogeneration units operation data acquisition terminal has the spies such as high-performance, low-power consumption, small in size, multiport, multithreading
Point.
In order to solve the above technical problems, the technical solution used in the present invention is:
A kind of high-performance cogeneration units operation data acquisition terminal based on ARM9 framework, including it is based on ARM9 framework
Embedded hardware system and in the hardware system embed based on built-in Linux operating system be using bottom software
System；
The embedded hardware system based on ARM9 framework includes mainboard and casing；
The mainboard includes core circuit and peripheral interface circuit；It is equipped on the casing corresponding to peripheral interface circuit
Various physical interfaces, be connected by winding displacement with the socket of peripheral interface circuit；It is additionally provided with human-computer interaction module on the casing,
Including LCD liquid crystal display screen and input keyboard；
The core circuit includes ARM9 architecture processor, power supply and reset circuit, clock circuit, 64M SDRAM data
Memory, 64M NAND FLASH program storage, communication is connected using I2C universal serial bus between each circuit；
The ARM9 architecture processor is 32 Embedded RISC microprocessors of kernel, for combining other core circuits
And peripheral interface circuit, the bootstrap of embedded OS Linux is loaded, automatic running upper level applications are completed to adopt
Collect the processing and transmission of data；5V DC power supply is used to power in the power supply and reset circuit for entire terminal；The clock
Circuit includes the input of two-way clock, is ARM9 architecture processor work clock all the way, another way is RTC clock；The 64M
SDRAM data storage, for storing executable code, including bottom (SuSE) Linux OS process, data acquisition process application
Program, SDRAM are connected by I2C serial line interface with ARM9 architecture processor；The 64M NAND FLASH program storage is used
In the storage of software systems file, driven including the hardware circuit under embedded OS (SuSE) Linux OS, linux system
The solidification of dynamic program and upper level applications stores；
The peripheral interface circuit is connected on ARM9 architecture processor core board, and all peripheral circuits are all supports
The operation of ARM9 architecture processor, including NOR FLASH, serial RS485 communication interface, Ethernet interface, LCD interface；
The NOR FLASH, for storing ARM9 architecture processor startup program；The serial RS485 communication interface, if
Have multiple, by connecting universal serial bus, ARM9 architecture processor is connected with sensor or intelligence instrument equipment is acquired, is passed through
The interface obtains communication data from acquisition sensor or intelligence instrument equipment；The Ethernet interface, be equipped with it is multiple, for connecting
Internet realizes that data collection station and distal end monitor the network communication of main website, by ARM9 architecture processor treated data
It is transferred to distal end monitoring main website；The LCD interface, connects LCD liquid crystal display screen by data flat cable；
The LCD liquid crystal display screen is for exporting current operating conditions, statistics of data acquisition, system parameter values, alarm signal
Breath, historical data；The input keyboard uses 4 × 4 matrix button keyboards, is connect by data flat cable with peripheral circuit plate, leads to
Serial bus communication is crossed, the configuration for data acquisition terminal parameter；
The software systems include bottom linux system program and upper layer data acquisition process application program, the bottom
Linux system program includes Linux embedded operating system kernel and hardware circuit driver, for directly operating hardware system
System is responsible for hardware resource distribution, scheduling, management；The upper layer data acquisition process application program is using operating system API as base
Plinth is developed using high-level language and object-oriented method, passes through multithreading reality based on the ICP/IP protocol stack that operating system embeds
Existing multiport communication, power plant's electricity volume, cogeneration units load and hair for completing to transmit by serial communication interface
Processing, the transmission of electricity, the pressure and temperature of heating steam, steam supply flow, furnace coal weight acquisition data, carry out acquisition data
Pretreatment, judges whether data correctness, precision, numerical value are out-of-limit, then will be sent to while data buffer storage by internet
Remote monitoring main website；Upper layer data acquisition process application program includes data communication module, data processing module, data storage mould
Block, task handle queue management module；Data communication module completes the data asynchronous communication function based on Socket；At data
Module is managed, classified to acquisition data, formatted, precision processing, numerical value judgement；Data memory module, to collected number
According to being serialized, store into nonvolatile storage；Task handles queue management module, completes the row to acquisition tasks queue
Sequence, priority, task queue executive condition carry out integrated management.
Further, the ARM9 architecture processor is S3C2410X processor.
Further, the ARM9 architecture processor work clock has source crystal oscillator for 12MHz, is not necessarily to external capacitive, by
Internal PLL is multiplied to 200MHz；The RTC clock is 32.768KHz without source crystal oscillator, and circuit is used with Ethernet interface
Clock circuit it is identical.
Further, the NOR FLASH uses the SST39VF200A model NOR FLASH chip of 64K capacity.
Further, the multiple serial communication interface uses SP3232ECA chip.
Further, the Ethernet interface uses Ethernet chip CS8900A.
It further, include operation panel and interface panel on the casing, the operation panel is the front end face of casing
Plate installs human-computer interaction module, and the interface panel is the rear end panel of casing, installs various physical interfaces.
The beneficial effects of adopting the technical scheme are that the high-performance provided by the invention based on ARM9 framework
Cogeneration units operation data acquisition terminal, is constructed using ARM9 framework high-performance processor hardware platform, and performance is basic
It is close to or up to industrial control computer level, and small in size, low-power consumption, while being used as and being answered using Linux embedded OS
With the bottom of developing operation, transfer program is acquired using high-level language (C Plus Plus etc. of object-oriented) and is developed, simultaneously
Linux embedded OS embeds ICP/IP protocol stack, supports the characteristics such as multithreading, greatly developer is facilitated to be rapidly completed
Protocol convertor.The present invention also supports multiplex roles, multithreading, mostly concurrent, just because of the superiority of ARM9 processor architecture
It can be supported with the multithreading of Linux embedded OS, just be achieved the concurrent data processing function of multiplex roles.Institute as above
It states, the present invention realizes performance, power consumption, volume, multiple balances of cost performance with uniformly, has accomplished the optimal of data collection station
Change.
Detailed description of the invention
Fig. 1 is that the high-performance cogeneration units operation data provided in an embodiment of the present invention based on ARM9 framework acquires eventually
Hold application system schematic diagram；
Fig. 2 is hardware system block schematic illustration provided in an embodiment of the present invention；
Fig. 3 is casing interface panel schematic diagram provided in an embodiment of the present invention；
Fig. 4 is casing operation panel schematic diagram provided in an embodiment of the present invention；
Fig. 5 is software system framework schematic diagram provided in an embodiment of the present invention.
In figure: 1, acquiring sensor, 2, intelligence instrument, 3, RS485 bus, 4, the high-performance thermoelectricity connection based on ARM9 framework
Produce data unit operation acquisition terminal, 5, Internet network, 6, remotely monitor main website, 7, LCD liquid crystal display screen, 8, enter key
Disk.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
As shown in Figure 1, being deployed in acquisition sensor 1 or the acquisition in real time of intelligence instrument 2 of cogeneration units key point
Cogeneration units difference running state data, such as power plant's electricity volume, cogeneration units load and generated energy, heating steam
The data such as pressure and temperature, steam supply flow, furnace coal weight after, provided in this embodiment be based on is passed to by RS485 bus 3
The high-performance cogeneration units operation data acquisition terminal 4 of ARM9 framework, 4 pairs of acquisition data of data collection station are located in advance
Reason judges data correctness, whether out-of-limit etc., then by data buffer storage while, remote monitoring master is sent to by internet 5
Stand 6.It monitors main website 6 to operate by deep processing, excavation, storage, analysis, the display etc. to information, eventually by computer UI
Interface is presented to user.
High-performance cogeneration units operation data acquisition terminal 4 provided in this embodiment based on ARM9 framework includes base
In the embedded hardware system of ARM9 framework and in the hardware system embed based on built-in Linux operating system be application
The software systems of bottom.
Based on the embedded hardware system of ARM9 framework, as shown in Fig. 2, including mainboard and casing.Mainboard includes core electricity
Road and peripheral interface circuit.Core circuit includes ARM9 architecture processor, power supply and reset circuit, clock circuit, 64M SDRAM
Data storage, 64M NAND FLASH program storage.Peripheral interface circuit is connected to ARM9 architecture processor core board
On, including NOR FLASH, multiple serial communication interfaces, multiple Ethernet interfaces, LCD interface.The rear end panel of casing is used as and connects
Mouth panel is connect as shown in figure 3, being equipped with the various physical interfaces corresponding to peripheral interface circuit thereon by winding displacement and periphery
The socket of mouth circuit is connected；The front console of casing is as operation panel, as shown in figure 4, it is additionally provided with human-computer interaction module thereon,
Including LCD liquid crystal display screen and input keyboard.
In the present embodiment, ARM9 architecture processor uses S3C2410X processor, is a kind of kernel 32 embedded
Risc microcontroller.5V DC power supply is used to power in power supply and reset circuit for entire terminal.Clock circuit, at S3C2410X
Reason device needs two-way clock to input, and is processor work clock all the way, another way is RTC clock.Processor work clock is 12MHz
Have source crystal oscillator, be not necessarily to external capacitive, 200MHz be multiplied to by internal PLL, RTC clock is 32.768KHz without source crystal oscillator,
Circuit is identical with clock circuit used in Ethernet chip CS8900A below.64M SDRAM data storage,
Feature is that capacity is big, access speed is fast, at low cost, for storing executable code, due to band inside S3C2410XARM processor
There are storage control and flush logic, so the SDRAM selected can be connected directly with arm processor by interface circuit.64M
NAND FLASH program storage, selects the K9F1208 program storage chip of SAMSUNG, and capacity 64M, 8bit data are wide
Degree, the solidification for (SuSE) Linux OS kernel, file system and application program store.
In the present embodiment, NOR FLASH selects the SST39VF200A model NOR FLASH chip of 64K capacity, for depositing
Startup program is put, arm processor is started by the startup program that NOR FLASH is stored.Serial communication interface, multiple serial ports use
SP3232ECA chip is connected with acquisition sensor or intelligence instrument equipment, for passing through serial ports from acquisition sensor device
Communication data is obtained, is equipped with 4 serial communication interface RS485 in the present embodiment.Ethernet interface, it is real for connecting internet
Existing data collection station and distal end monitor the network communication of main website, are equipped with 2 Ethernet interface RJ45 in the present embodiment.
LCD liquid crystal display screen selects the TD035STEB1 of TOPPOLY photoelectricity company, is a 3.5 " TFT type Transflective liquid
Crystal display screen, display resolution are 240 × 320 pixels, provide 18 RGB pixel data interfaces, pixel clock signal CLK, number
According to enable signal DE and the positioning signal YU, XR, YL, XL of touch screen.Worked as by 3.5 inches of LCD liquid crystal display screens to export
Preceding operating status, statistics of data acquisition, system parameter value information.Input keyboard selects 4 × 4 array keyboards, for completing data
The configuration of acquisition terminal parameter.
Software systems, as shown in figure 5, including bottom linux system program and upper layer data acquisition process application program.Bottom
Layer linux system program includes Linux embedded operating system kernel and hardware circuit driver, for directly operating hardware
System is responsible for hardware resource distribution, scheduling, management.Upper layer data acquisition process application program based on operating system API,
It is developed using C Plus Plus and object-oriented method, the ICP/IP protocol stack embedded based on operating system is more by multithreading realization
Port communication, for complete by serial communication interface transmit power plant's electricity volume, cogeneration units load and generated energy,
(acquisition data are located in processing, transmission in advance for the pressure and temperature of heating steam, steam supply flow, furnace coal weight acquisition data
Reason judges data correctness, whether out-of-limit, then will be sent to remote monitoring main website by internet while data buffer storage；
Upper layer data acquisition process application program includes data communication module, data processing module, data memory module, task processing team
Column management module.Data communication module completes the data asynchronous communication function based on Socket；Data processing module, to acquisition
Data are classified, are formatted, precision is handled, numerical value judgement；Data memory module serializes collected data,
It stores in nonvolatile storage；Task handles queue management module, completes to the sequence of acquisition tasks queue, priority, appoints
Queue executive condition of being engaged in carries out integrated management.
The core of hardware structure in the present embodiment is the processor of S3C2410X ARM9 framework, when power circuit is to be
After system power supply, S3C2410X processor completes system starting process from startup program is read in NOR FLASH into itself RAM.
After above-mentioned workflow, the bootstrap of the embedded OS Linux of load NAND FLASH storage.Embedded operation system
It unites after Linux operation, automatic running upper level applications are responsible for data processing and transmission.System collects reality in RS485 interface
When data after, transfer to ARM9 processor to be handled, remote monitoring central master station sent to by RJ45 Ethernet interface.
Originally it is the high-performance cogeneration units operation data acquisition terminal based on ARM9 framework that example provides, is based on
The building of ARM9 framework high-performance processor hardware platform, performance basically reach industrial control computer level, and small in size, low function
Consumption, while the physical layer interface run as application and development using embedded OS, can be used high-level programming language (towards
The C Plus Plus of object) etc. carry out data acquisition and processing written in code, operating system embed ICP/IP protocol stack, support it is multi-thread
The characteristics such as journey, very convenient developer quickly write acquisition process control program.Also support multiplex roles (4 serial ports, 2
RJ45 interface), it is multithreading, mostly concurrent, have benefited from arm processor framework excellent properties and embedded OS it is multi-thread
Journey is supported.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement；And these are modified or replaceed, model defined by the claims in the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (7)
1. a kind of high-performance cogeneration units operation data acquisition terminal based on ARM9 framework, it is characterised in that: including base
In the embedded hardware system of ARM9 framework and in the hardware system embed based on built-in Linux operating system be application
The software systems of bottom；
The embedded hardware system based on ARM9 framework includes mainboard and casing；
The mainboard includes core circuit and peripheral interface circuit；It is equipped on the casing corresponding to each of peripheral interface circuit
Kind physical interface, is connected by winding displacement with the socket of peripheral interface circuit；Human-computer interaction module is additionally provided on the casing, including
LCD liquid crystal display screen and input keyboard；
The core circuit includes ARM9 architecture processor, power supply and reset circuit, clock circuit, the storage of 64M SDRAM data
Device, 64M NAND FLASH program storage, communication is connected using I2C universal serial bus between each circuit；
The ARM9 architecture processor is 32 Embedded RISC microprocessors of kernel, in conjunction with other core circuits and outside
Interface circuit is enclosed, the bootstrap of embedded OS Linux is loaded, automatic running upper level applications complete acquisition number
According to processing and transmission；5V DC power supply is used to power in the power supply and reset circuit for entire terminal；The clock circuit
It is inputted including two-way clock, is ARM9 architecture processor work clock all the way, another way is RTC clock；The 64M SDRAM number
According to memory, for storing executable code, including bottom (SuSE) Linux OS process, data acquisition process application program,
SDRAM is connected by I2C serial line interface with ARM9 architecture processor；The 64M NAND FLASH program storage, for soft
The storage of part system file drives journey including the hardware circuit under embedded OS (SuSE) Linux OS, linux system
The solidification of sequence and upper level applications stores；
The peripheral interface circuit is connected on ARM9 architecture processor core board, and all peripheral circuits are all support ARM9 framves
The operation of structure processor, including NOR FLASH, serial RS485 communication interface, Ethernet interface, LCD interface；
The NOR FLASH, for storing ARM9 architecture processor startup program；The serial RS485 communication interface is equipped with more
It is a, by connecting universal serial bus, ARM9 architecture processor is connected with acquisition sensor or intelligence instrument equipment, is connect by this
Mouth obtains communication data from acquisition sensor or intelligence instrument equipment；The Ethernet interface, be equipped with it is multiple, for connect interconnection
Net realizes that data collection station and distal end monitor the network communication of main website, ARM9 architecture processor treated data is transmitted
Main website is monitored to distal end；The LCD interface, connects LCD liquid crystal display screen by data flat cable；
The LCD liquid crystal display screen is for exporting current operating conditions, statistics of data acquisition, system parameter values, warning message, going through
History data；The input keyboard uses 4 × 4 matrix button keyboards, is connect by data flat cable with peripheral circuit plate, by serial
Bus communication, the configuration for data acquisition terminal parameter；
The software systems include bottom linux system program and upper layer data acquisition process application program, the bottom Linux
System program includes that Linux embedded operating system kernel and hardware circuit driver are born for directly operating hardware system
Blame hardware resource distribution, scheduling, management；The upper layer data acquisition process application program is used based on operating system API
High-level language and object-oriented method exploitation, the ICP/IP protocol stack embedded based on operating system realize multiport by multithreading
Communication, power plant's electricity volume, cogeneration units load and generated energy, heat supply for completing to transmit by serial communication interface
Processing, the transmission of the pressure and temperature, steam supply flow, furnace coal weight acquisition data of steam, pre-process acquisition data, sentence
Whether disconnected data correctness, precision, numerical value are out-of-limit, then will be sent to remote monitoring master by internet while data buffer storage
It stands；Upper layer data acquisition process application program include data communication module, data processing module, data memory module, at task
Manage queue management module；Data communication module completes the data asynchronous communication function based on Socket；Data processing module, it is right
Acquisition data are classified, are formatted, precision is handled, numerical value judgement；Data memory module carries out sequence to collected data
Change, stores into nonvolatile storage；Task handle queue management module, complete to the sequence of acquisition tasks queue, priority,
Task queue executive condition carries out integrated management.
2. the high-performance cogeneration units operation data acquisition terminal according to claim 1 based on ARM9 framework,
Be characterized in that: the ARM9 architecture processor is S3C2410X processor.
3. the high-performance cogeneration units operation data acquisition terminal according to claim 1 or 2 based on ARM9 framework,
It is characterized by: the ARM9 architecture processor work clock has source crystal oscillator for 12MHz, it is not necessarily to external capacitive, by internal PLL
It is multiplied to 200MHz；The RTC clock is 32.768KHz without source crystal oscillator, circuit and clock used in Ethernet interface
Circuit is identical.
4. the high-performance cogeneration units operation data acquisition terminal according to claim 1 based on ARM9 framework,
Be characterized in that: the NOR FLASH uses the SST39VF200A model NOR FLASH chip of 64K capacity.
5. the high-performance cogeneration units operation data acquisition terminal according to claim 1 based on ARM9 framework,
Be characterized in that: the multiple serial communication interface uses SP3232ECA chip.
6. the high-performance cogeneration units operation data acquisition terminal according to claim 1 based on ARM9 framework,
Be characterized in that: the Ethernet interface uses Ethernet chip CS8900A.
7. the high-performance cogeneration units operation data acquisition terminal according to claim 1 based on ARM9 framework,
It is characterized in that: including operation panel and interface panel on the casing, the operation panel is the front console of casing, installs people
Machine interactive module, the interface panel are the rear end panel of casing, install various physical interfaces.
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| CN111130220A (en) * | 2020-01-15 | 2020-05-08 | 青海绿能数据有限公司 | Device of distributing type photovoltaic power plant information acquisition and control |
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| CN108259538A (en) * | 2016-12-29 | 2018-07-06 | 广东省智能制造研究所 | Press workshop data collecting system based on built-in Linux |
| CN106961580A (en) * | 2017-03-22 | 2017-07-18 | 金陵科技学院 | Embedded video cap ture system based on ARM9 and V4L2 interfaces |
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| CN111130220A (en) * | 2020-01-15 | 2020-05-08 | 青海绿能数据有限公司 | Device of distributing type photovoltaic power plant information acquisition and control |
| CN111130220B (en) * | 2020-01-15 | 2023-06-06 | 青海绿能数据有限公司 | Distributed photovoltaic power station information acquisition and monitoring device |
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