CN107807563A - A kind of distribution parameter monitoring control system and control method - Google Patents
A kind of distribution parameter monitoring control system and control method Download PDFInfo
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- CN107807563A CN107807563A CN201710985965.4A CN201710985965A CN107807563A CN 107807563 A CN107807563 A CN 107807563A CN 201710985965 A CN201710985965 A CN 201710985965A CN 107807563 A CN107807563 A CN 107807563A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000003993 interaction Effects 0.000 claims abstract description 54
- 238000004891 communication Methods 0.000 claims abstract description 37
- 238000005070 sampling Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
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- 235000008409 marco Nutrition 0.000 claims description 4
- 244000078446 marco Species 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
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- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000010365 information processing Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000036039 immunity Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 241000894007 species Species 0.000 description 5
- 230000002452 interceptive effect Effects 0.000 description 3
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- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
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- 238000013480 data collection Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
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- 230000008901 benefit Effects 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 230000005621 ferroelectricity Effects 0.000 description 1
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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
- G05B19/0421—Multiprocessor system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
- G01R19/2509—Details concerning sampling, digitizing or waveform capturing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
- G01R21/1331—Measuring real or reactive component, measuring apparent energy
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/16—Spectrum analysis; Fourier analysis
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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
- G05B2219/22—Pc multi processor system
- G05B2219/2214—Multicontrollers, multimicrocomputers, multiprocessing
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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
- G05B2219/23—Pc programming
- G05B2219/23067—Control, human or man machine interface, interactive, HMI, MMI
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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
- G05B2219/25176—RS485, differential data signals, xor
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Mathematical Physics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of distribution parameter monitoring control system and control method, including man-machine interaction unit；To realize monitoring information processing, record and the real-time controlling unit of controlling alarm；To realize the electrical parameter collecting unit of distribution system wire inlet loop and the analysis of each transmission line circuit data sampling；The man-machine interaction unit is connected using RS485 buses with the real-time controlling unit and realizes data communication；The real-time controlling unit is connected using spi bus with the electrical parameter collecting unit and realizes data communication；The technology of the present invention makes distribution parameter monitoring control system communication structure simple, favorable expandability, industry spot strong interference immunity, ensure that the accuracy and reliability of electrical parameter monitoring.
Description
Technical field
The present invention relates to a kind of distribution parameter monitoring control system and control method, belong to distribution monitor technical field.
Background technology
As between distribution computer room, Building Power Distribution, webserver Surveillance center increasingly carries to power supply quality detection requirement
Height, distribution monitor technology have obtained increasingly being widely applied.Distribution first cabinet of each row is that computer room, power distribution station, the main of Surveillance center are set
It is one of standby.Civil power wire inlet loop distributes some transmission line circuits by distribution row cabinet, and equipment obtains confession by connecting transmission line circuit
Power supply, distribution first cabinet of each row are analyzed and compare pre-set threshold value and realize pair by gathering the electrical parameter of wire inlet loop and transmission line circuit
The monitoring of distribution system, distribution parameter monitoring control system are the cores of distribution first cabinet of each row.
In face of complicated and diversified distribution parameter sampling demand, the simple distribution parameter monitoring control system of original independently working
System is progressively eliminated, and present distribution parameter monitoring control system is progressively towards more sampling circuits, multi-parameter species, highly integrated
The direction of degree is developed.Demand that is accurate, rigorous, pursuing utilization of resources, people couple are connected up in order to tackle computer room distribution row cabinet
Multi-functional, small size and measure loop can be added as needed on, the demand of the distribution parameter monitoring control system of reduction is big
Big increase.
The content of the invention
For existing distribution parameter monitoring control system monitoring parameters species is single, precision is low, sampling module volume is big, mould
Block sampling circuit number fixation can not be changed, and cause monitoring benefit low, and existing control system has alarm species is few, reaction is slow etc.
Shortcoming.A kind of monitoring parameters species of present invention offer is more, precision is high, and sampling module small volume, sampling module hardware-in-the-loop number can
Change, alarm species is more and sensitive, and ensures the distribution parameter monitoring control system and control method of the reliability of system operation.
To reach above-mentioned purpose, the technical scheme is that：
A kind of distribution parameter monitoring control system, including man-machine interaction unit；To realize monitoring information processing, record and alarm
The real-time controlling unit of control；To realize that distribution system wire inlet loop and the electrical parameter of each transmission line circuit data sampling analysis are adopted
Collect unit；The man-machine interaction unit is connected using RS485 buses with the real-time controlling unit and realizes data communication；The reality
When control unit be connected with the electrical parameter collecting unit using spi bus and realize data communication；The electrical parameter collecting unit
Voltage parameter is sampled by the way of electric resistance partial pressure sampling, using to passing through the two of outside working site D.C mutual-inductor
The mode of primary current sampling samples to current parameters.
Described man-machine interaction unit includes LCDs, touch-screen, based on the embedded of ARM Cortex-A8
(SuSE) Linux OS, USB interface, Ethernet interface and data center's communication RS485 interfaces；It is described based on ARM Cortex-
A8 built-in Linux operating system passes through circuit and LCDs, touch-screen, USB interface, Ethernet interface sum respectively
It is connected according to center communication RS485 interfaces；Described man-machine interaction unit is connect using Ethernet interface or data center communication RS485
Mouth is connected by circuit with data center respectively realizes data communication.The man-machine interaction unit, with embedded QT gui interfaces
For system man-machine interactive platform, for showing the status information of monitoring power distribution control system；For setting parameters alarm valve
Value, and the warning message manipulation alarm relay output fed back according to real-time control system；For passing through reserved RS485 ports
Data transfer is realized with data center monitoring system.Described man-machine interaction unit has data input pin and data output end,
Described data input pin is stored in the built-in Linux operation system based on ARM Cortex-A8 by touch-screen input data
System.Described data output end has LCDs, Ethernet interface and data center's communication RS485 interfaces.
The real-time controlling unit includes the embedded controller based on ARM Cortex-M0, ferroelectric memory, lightning protection device
Input port, relay output end mouth；The described embedded controller based on ARM Cortex-M0 passes through circuit and iron respectively
Electrical storage, lightning protection device input port, relay output end mouth are connected, the embedded control based on ARM Cortex-M0
Device processed is connected by RS485 buses with the built-in Linux operating system based on ARM Cortex-A8 in man-machine interaction unit
Realize data communication.The real-time controlling unit, for storing the electrical parameter acquisition module based on high-precision electric energy computation chip
The calibration parameter of middle electric energy computation chip, and the calibration register write by spi bus on electric energy computation chip；For passing through
Spi bus reads electrical parameter collecting unit data；For realizing that warning message feeds back by contrasting sampling parameter and alarming threshold value；
For controlling outside abnormal alarm device to realize alarm；Judge for gathering the status information that outside lightning protection device input port is gathered
Lightning protection device is alarmed.In described real-time controlling unit, circuit system is monitored in real time, and Real-time Feedback gives man-machine interaction list
Member, it is shown on LCDs, feedback alarm is carried out to the energy data of abnormality.In the real-time controlling unit, for leading to
It is single that the module of news includes the embedded controller based on ARM Cortex-M0, the spi bus of electric energy computation chip and control in real time
Member and 485 buses of man-machine interaction unit communication；The output end of described real-time controlling unit is mainly to man-machine interaction unit
Built-in Linux operating system based on ARM Cortex-A8 send the electric energy measurement data obtained and gathered to electrical parameter
The electric energy computation chip input calibration parameter of the electrical parameter acquisition module based on high-precision electric energy computation chip in unit, relay
Device output port is used to remind whether trigger alarm.
The electrical parameter collecting unit includes the electrical parameter acquisition module based on high-precision electric energy computation chip；Described base
In high-precision electric energy computation chip electrical parameter acquisition module by spi bus and real-time controlling unit based on ARM
Cortex-M0 embedded controller, which is connected, realizes data communication；Electrical parameter collection mould based on high-precision electric energy computation chip
Block sampling circuit magnitude of voltage, sampling circuit current value by way of current transformer ratio by way of electric resistance partial pressure, lead to
Cross and can be calculated monitoring circuit voltage, electric current, power, electricity, harmonic wave related electrical parameters；Electrical parameter collecting unit and control in real time
Carried out data transmission between unit processed by spi bus, according on spi bus physical layer include Data In-Line DIN, data
The characteristics of output line DOUT, tri- common wires of synchronous signal line SCLK and some silvers select signal wire CS, electrical parameter collecting unit
The mode for the unnecessary chip selection signal line CS that can be reserved by using real-time controlling unit is to based on high-precision electric energy computation chip
Electrical parameter acquisition module number be extended, so as to realize the extension to monitoring circuit number.The electrical parameter collecting unit, use
In to voltage, current parameters progress automatic data collection；For realizing voltage, electric current, active power, reactive power, apparent energy, work(
The measurement of rate factor, harmonic content parameter；For realizing the record of active energy, reactive energy, apparent energy information.Selected
Electric energy computation chip can be communicated with the embedded controller based on ARM Cortex-M0 by SPI, to obtaining electric energy metrical number
According to progress real-time Transmission.The system can be according to the extended attribute of spi bus, at most monitoring of the extension to 72 road transmission line circuits.
A kind of control method of distribution parameter monitoring control system, comprises the following steps：
1）The feeder number monitored according to needed for control system is small using the spi bus extended attribute of electrical parameter collecting unit, assembling
In the electrical parameter acquisition module based on high-precision electric energy computation chip equal to 72 road transmission line circuits；
2）Shown by LCDs, by operating each electrical parameter acquisition module pair based on high-precision electric energy computation chip
The calibration parameter for the electric energy computation chip answered imports the built-in Linux based on ARM Cortex-A8 by USB interface and operates system
In system, and write by RS485 buses in the register of the embedded controller based on ARM Cortex-M0, finally according to step
Rapid 1）Calibration parameter value is stored in ferroelectricity by the order for assembling the electrical parameter acquisition module based on high-precision electric energy computation chip
In memory；
3）When system electrification starts, the embedded controller based on ARM Cortex-M0 in real-time controlling unit, which will be read, to be walked
Rapid 2）In be stored in calibration parameter value in ferroelectric memory, software merit rating is carried out to electrical parameter collecting unit；
4）System is carried out just by the built-in Linux operating system based on ARM Cortex-A8 in man-machine interaction unit
True parameter setting, content include threshold voltage, current threshold, power threshold；
5）The electrical parameter collecting unit by being sampled to loops sample point voltage, electric current, counter circuit voltage, electric current,
Power, harmonic wave electrical parameter；The embedded controller based on ARM Cortex-M0 in the real-time controlling unit is total by SPI
Line, data are calculated to each electric energy computation chip in each electrical parameter acquisition module based on high-precision electric energy computation chip and carried out
Read；The built-in Linux operating system based on ARM Cortex-A8 in the man-machine interaction unit by RS485 buses,
The embedded controller based on ARM Cortex-M0 in real-time controlling unit is read using Modbus-RTU communications protocol
Data make requests on, and the data for asking to obtain are included on LCDs；
6）According to step 4）The parameter information of setting, the embedded Control based on ARM Cortex-M0 in real-time controlling unit
Device generates alarm or non-alarm state information by comparing the electrical parameter values of collection with corresponding alarming threshold value, total by RS485
Bundle of lines status information is sent to the built-in Linux operating system based on ARM Cortex-A8 in man-machine interaction unit；Man-machine friendship
The built-in Linux operating system based on ARM Cortex-A8 in mutual unit passes through further according to the parameter information of setting
Corresponding relay output end mouth state in RS485 bus marco real-time controlling units；
7）When there is the input of lightning protection device warning message through lightning protection device input port, in real-time controlling unit based on ARM
Cortex-M0 embedded controller by RS485 buses warning message be sent in man-machine interaction unit based on ARM
Cortex-A8 built-in Linux operating system；The built-in Linux based on ARM Cortex-A8 in man-machine interaction unit
Operating system passes through corresponding relay output end in RS485 bus marco real-time controlling units further according to the parameter information of setting
Mouth state；
8）Man-machine interaction unit communicates RS485 interfaces and data center's dynamic environment monitoring by Ethernet interface or data center
System connects；Data center's dynamic environment monitoring system passes through in TCP/IP or Modbus-RTU agreements and man-machine interaction unit
Built-in Linux operating system data communication based on ARM Cortex-A8, realize the dynamic environment prison to distribution first cabinet of each row
Control.
Beneficial effects of the present invention are mainly manifested in：The present invention utilizes the extended attribute of spi bus, and real-time controlling unit can
According to the electrical parameter collecting unit being actually needed with the use of corresponding number；Electrical parameter collecting unit is obtained by electric energy computation chip
The electrical parameter of wire inlet loop and transmission line circuit is taken, carries out the data processing of specific protocol, there is provided detailed electrical parameter；Control in real time
The electrical parameter values that unit collects by comparing and the alarming threshold value of setting, make the condition adjudgement of Alarm and " non-alarm "；
Man-machine interaction unit is according to the alarm condition read from real-time controlling unit, and control relay output state is to realize outside report
It is alert.The electrical parameter collecting unit that high-precision electric energy computation chip is core is used to input in dynamic operating range, non-linear survey
It is small to measure error, the sampling precision of equipment can be kept.Sample real-time control list of the spi bus realization using arm processor as core
Member is read to the parameter of electrical parameter collecting unit, is realized using RS485 buses between real-time controlling unit and man-machine interaction unit
Communication, it can realize that simultaneously real-time display on man-machine interaction unit, can reflect whole monitoring to the real-time monitoring to electrical energy parameter
The working condition of system simultaneously carries out Realtime Alerts to the pathosis of generation, and this is to finding failure and effectively solution problem has
Significance.Electrical parameter collecting unit uses modularized design, and combines the scalability feature of spi bus, and control is single in real time
Member can be according to the electrical parameter collecting unit being actually needed with the use of corresponding number, so as to coordinate the outlet of monitoring corresponding number to return
Road, practicality is improved, be adapted to be widely popularized.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
A kind of distribution parameter monitoring control system as shown in Figure 1, including man-machine interaction unit 1；To realize monitoring letter
The real-time controlling unit 2 of breath processing, record and controlling alarm；To realize distribution system wire inlet loop and each transmission line circuit data
The electrical parameter collecting unit of sampling analysis；The man-machine interaction unit 1 is connected real with real-time controlling unit 2 using RS485 buses
Existing data communication；The real-time controlling unit 2 is connected with electrical parameter collecting unit using spi bus realizes data communication；It is described
Electrical parameter collecting unit is sampled by the way of electric resistance partial pressure sampling to voltage parameter, using to passing through outside working site
The mode of the secondary current sampling of D.C mutual-inductor samples to current parameters.
Described man-machine interaction unit 1 includes LCDs 4, touch-screen 5, based on the embedded of ARM Cortex-A8
(SuSE) Linux OS 6, USB interface 7, Ethernet interface 8 and data center's communication RS485 interfaces 9；It is described based on ARM
Cortex-A8 built-in Linux operating system 6 respectively by circuit and LCDs 4, touch-screen 5, USB interface 7, with
Too network interface 8 communicates RS485 interfaces 9 with data center and is connected；Described man-machine interaction unit 1 utilizes Ethernet interface 8 or number
It is connected respectively by circuit with data center according to center communication RS485 interfaces 9 and realizes data communication.The man-machine interaction unit 1,
Using embedded QT gui interfaces as system man-machine interactive platform, for showing the status information of monitoring power distribution control system；For
Parameters alarming threshold value, and the warning message manipulation alarm relay output fed back according to real-time control system are set；For
Data transfer is realized with data center's monitoring system by reserved RS485 ports.Described man-machine interaction unit 1 has data
Input and data output end, described data input pin are stored in based on ARM Cortex- by the input data of touch-screen 5
A8 built-in Linux operating system 6.Described data output end has LCDs 4, Ethernet interface 8 and data center
Communicate RS485 interfaces 9.
The real-time controlling unit 2 include the embedded controller 10 based on ARM Cortex-M0, ferroelectric memory 11,
Lightning protection device input port 12, relay output end mouth 13；The described embedded controller 10 based on ARM Cortex-M0 is distinguished
It is connected by circuit with ferroelectric memory 11, lightning protection device input port 12, relay output end mouth 13, it is described based on ARM
Cortex-M0 embedded controller 10 by RS485 buses and man-machine interaction unit 1 based on ARM Cortex-A8's
Built-in Linux operating system 6, which is connected, realizes data communication.In the real-time controlling unit 2 based on ARM Cortex-M0's
Embedded controller 10 is used to store electric energy computation chip in the electrical parameter acquisition module 3 based on high-precision electric energy computation chip
Calibration parameter, and the calibration register write by spi bus on electric energy computation chip；For reading electricity ginseng by spi bus
Counting collection unit data；For realizing that warning message feeds back by contrasting sampling parameter and alarming threshold value；It is outside different for controlling
Normal alarm realizes alarm；Judge that lightning protection device is alarmed for gathering the status information that outside lightning protection device input port 12 is gathered.
In described real-time controlling unit 2, circuit system is monitored in real time, and Real-time Feedback is shown in man-machine interaction unit 1
On LCDs 4, feedback alarm is carried out to the energy data of abnormality.In the real-time controlling unit 2, the module for communication
Including the embedded controller 10 based on ARM Cortex-M0, the spi bus of electric energy computation chip and real-time controlling unit 2 with
485 buses that man-machine interaction unit 1 communicates；The output end of described real-time controlling unit 2 is mainly to man-machine interaction unit 1
Built-in Linux operating system 6 based on ARM Cortex-A8 sends the electric energy measurement data obtained and gathered to electrical parameter single
The electric energy computation chip input calibration parameter of the electrical parameter acquisition module 3 based on high-precision electric energy computation chip in member, relay
Device output port 13 is used to remind whether trigger alarm.
The electrical parameter collecting unit includes the electrical parameter acquisition module 3 based on high-precision electric energy computation chip；Described
Based on the electrical parameter acquisition module 3 of high-precision electric energy computation chip by spi bus and real-time controlling unit 2 based on ARM
Cortex-M0 embedded controller 10, which is connected, realizes data communication；Electrical parameter collection based on high-precision electric energy computation chip
Module 3 sampling circuit magnitude of voltage, sampling circuit current value by way of current transformer ratio by way of electric resistance partial pressure,
By can be calculated monitoring circuit voltage, electric current, power, electricity, harmonic wave related electrical parameters；Electrical parameter collecting unit with real time
Carried out data transmission between control unit 2 by spi bus, according on spi bus physical layer include Data In-Line DIN,
The characteristics of DOL Data Output Line DOUT, tri- common wires of synchronous signal line SCLK and some silvers select signal wire CS, electrical parameter collection
The mode for the unnecessary chip selection signal line CS that unit can be reserved by using real-time controlling unit 2 is to based on high-precision electric energy metrical
3 numbers of electrical parameter acquisition module of chip are extended, so as to realize the extension to gathering monitoring circuit number.The electrical parameter is adopted
Collect unit, for carrying out automatic data collection to voltage, current parameters；For realizing voltage, electric current, active power, reactive power, regarding
In power, the measurement of power factor, harmonic content parameter；For realizing the note of active energy, reactive energy, apparent energy information
Record.Selected electric energy computation chip can be communicated with the embedded controller 10 based on ARM Cortex-M0 by SPI, to obtaining
Obtain electric energy measurement data and carry out real-time Transmission.The system can be according to the extended attribute of spi bus, and at most extension is returned to 72 tunnel outlets
The monitoring on road.
A kind of control method of distribution parameter monitoring control system, comprises the following steps：
1）The feeder number monitored according to needed for control system is small using the spi bus extended attribute of electrical parameter collecting unit, assembling
In the electrical parameter acquisition module 3 based on high-precision electric energy computation chip equal to 72 road transmission line circuits；
2）Shown by LCDs 4, by operating each electrical parameter acquisition module 3 based on high-precision electric energy computation chip
The calibration parameter of corresponding electric energy computation chip imports the built-in Linux based on ARM Cortex-A8 by USB interface 7 and grasped
Make in system 6, and write by RS485 buses in the register of the embedded controller 10 based on ARM Cortex-M0, finally
According to step 1）The order for assembling the electrical parameter acquisition module 3 based on high-precision electric energy computation chip preserves calibration parameter value
In ferroelectric memory 11；
3）When system electrification starts, the embedded controller 10 based on ARM Cortex-M0 in real-time controlling unit 2 will be read
Step 2）In be stored in calibration parameter value in ferroelectric memory 11, software merit rating is carried out to electrical parameter collecting unit；
4）By being carried out in man-machine interaction unit 1 based on ARM Cortex-A8 built-in Linux operating system 6 to system
Correct parameter setting, content include threshold voltage, current threshold, power threshold；
5）The electrical parameter collecting unit by being sampled to loops sample point voltage, electric current, counter circuit voltage, electric current,
Power, harmonic wave electrical parameter；The embedded controller 10 based on ARM Cortex-M0 in the real-time controlling unit 2 passes through SPI
Bus, data are calculated to each electric energy computation chip in each electrical parameter acquisition module 3 based on high-precision electric energy computation chip
It is read out；The built-in Linux operating system 6 based on ARM Cortex-A8 in the man-machine interaction unit 1 passes through
RS485 buses, using Modbus-RTU communications protocol in real-time controlling unit 2 based on the embedded of ARM Cortex-M0
The data streams read of controller 10 makes requests on, and the data for asking to obtain are included on LCDs 4；
6）According to step 4）The parameter information of setting, the embedded Control based on ARM Cortex-M0 in real-time controlling unit 2
Device 10 generates alarm or non-alarm state information by comparing the electrical parameter values of collection with corresponding alarming threshold value, passes through RS485
Bus sends status information to the built-in Linux operating system 6 based on ARM Cortex-A8 in man-machine interaction unit 1；People
The parameter information based on ARM Cortex-A8 built-in Linux operating system 6 further according to setting in machine interactive unit 1, lead to
Cross the corresponding state of relay output end mouth 13 in RS485 bus marcos real-time controlling unit 2；
7）When there is the input of lightning protection device warning message through lightning protection device input port 12, in real-time controlling unit 2 based on ARM
Cortex-M0 embedded controller 10 by RS485 buses warning message be sent in man-machine interaction unit 1 based on ARM
Cortex-A8 built-in Linux operating system 6；In man-machine interaction unit 1 based on the embedded of ARM Cortex-A8
(SuSE) Linux OS 6 passes through corresponding relay in RS485 bus marcos real-time controlling unit 2 further according to the parameter information of setting
The state of output port 13；
8）Man-machine interaction unit 1 communicates RS485 interfaces 9 and data center's dynamic environment by Ethernet interface 8 or data center
Monitoring system connects；Data center's dynamic environment monitoring system passes through TCP/IP or Modbus-RTU agreements and man-machine interaction unit
The data communication of built-in Linux operating system 6 based on ARM Cortex-A8 in 1, realizes the dynamic ring to distribution first cabinet of each row
Border monitors.
The present embodiment utilizes the extended attribute of spi bus, and real-time controlling unit can be used cooperatively accordingly according to being actually needed
The electrical parameter collecting unit of number；Electrical parameter collecting unit obtains the electricity of wire inlet loop and transmission line circuit by electric energy computation chip
Parameter, carry out the data processing of specific protocol, there is provided detailed electrical parameter；The electricity ginseng that real-time controlling unit is collected by comparing
Numerical value and the alarming threshold value of setting, make the condition adjudgement of Alarm and " non-alarm "；Man-machine interaction unit is controlled according to from real-time
The alarm condition that unit processed is read, control relay output state is to realize external alert.Using high precision electro energy metering core
Piece is being inputted in dynamic operating range for the electrical parameter collecting unit of core, and nonlinear measurement error is small, can keep equipment
Sampling precision.Sample spi bus and realize that using arm processor be the real-time controlling unit of core to the parameter of electrical parameter collecting unit
Read, the communication between real-time controlling unit and man-machine interaction unit is realized using RS485 buses, can be realized to electrical energy parameter
Simultaneously real-time display on man-machine interaction unit, can reflect the working condition of whole monitoring system and to the anti-of generation for monitoring in real time
Normal state carries out Realtime Alerts, and this is significant to finding failure and effectively solving problem.Electrical parameter collecting unit is adopted
With modularized design, and the scalability feature of spi bus is combined, real-time controlling unit can be used cooperatively phase according to being actually needed
The electrical parameter collecting unit of number is answered, so as to coordinate the transmission line circuit of monitoring corresponding number, improves practicality, is adapted to push away extensively
Extensively.
Claims (5)
- A kind of 1. distribution parameter monitoring control system, it is characterised in that：Including man-machine interaction unit (1)；To realize monitoring letter The real-time controlling unit (2) of breath processing, record and controlling alarm；To realize distribution system wire inlet loop and each transmission line circuit number According to the electrical parameter collecting unit of sampling analysis；The man-machine interaction unit (1) uses RS485 with the real-time controlling unit (2) Data communication is realized in bus connection；The real-time controlling unit (2) is connected real with the electrical parameter collecting unit using spi bus Existing data communication.
- A kind of 2. distribution parameter monitoring control system as claimed in claim 1, it is characterised in that：Described man-machine interaction unit (1) LCDs (4), touch-screen (5), built-in Linux operating system (6), USB based on ARM Cortex-A8 are included Interface (7), Ethernet interface (8) and data center's communication RS485 interfaces (9)；The described insertion based on ARM Cortex-A8 Formula (SuSE) Linux OS (6) passes through circuit and LCDs (4), touch-screen (5), USB interface (7), Ethernet interface respectively (8) it is connected with data center's communication RS485 interfaces (9)；Described man-machine interaction unit (1) utilizes Ethernet interface (8) or number It is connected respectively by circuit with data center according to center communication RS485 interfaces (9) and realizes data communication.
- A kind of 3. distribution parameter monitoring control system as claimed in claim 1, it is characterised in that：The real-time controlling unit (2) include the embedded controller (10) based on ARM Cortex-M0, ferroelectric memory (11), lightning protection device input port (12), Relay output end mouth (13)；The described embedded controller (10) based on ARM Cortex-M0 passes through circuit and iron respectively Electrical storage (11), lightning protection device input port (12), relay output end mouth (13) are connected, described based on ARM Cortex- M0 embedded controller (10) passes through the insertion based on ARM Cortex-A8 in RS485 buses and man-machine interaction unit (1) Formula (SuSE) Linux OS (6), which is connected, realizes data communication.
- A kind of 4. distribution parameter monitoring control system as claimed in claim 1, it is characterised in that：The electrical parameter collecting unit Including the electrical parameter acquisition module (3) based on high-precision electric energy computation chip；It is described based on high-precision electric energy computation chip Electrical parameter acquisition module (3) passes through the embedded control based on ARM Cortex-M0 in spi bus and real-time controlling unit (2) Device (10) processed, which is connected, realizes data communication.
- 5. a kind of control method of distribution parameter monitoring control system, it is characterised in that comprise the following steps：1) feeder number monitored according to needed for control system is small using the spi bus extended attribute of electrical parameter collecting unit, assembling In the electrical parameter acquisition module (3) based on high-precision electric energy computation chip equal to 72 road transmission line circuits；2) shown by LCDs (4), each electrical parameter based on high-precision electric energy computation chip is gathered into mould by operating The calibration parameter of electric energy computation chip corresponding to block (3) is imported based on the embedded of ARM Cortex-A8 by USB interface (7) In (SuSE) Linux OS (6), and posting for embedded controller (10) based on ARM Cortex-M0 is write by RS485 buses In storage, the order that the electrical parameter acquisition module (3) based on high-precision electric energy computation chip is finally assembled according to step 1) will Calibration parameter value is stored in ferroelectric memory (11)；3) when system electrification starts, the embedded controller (10) based on ARM Cortex-M0 in real-time controlling unit (2) will Read step 2) in be stored in calibration parameter value in ferroelectric memory (11), software merit rating is carried out to electrical parameter collecting unit；4) by the built-in Linux operating system (6) based on ARM Cortex-A8 in man-machine interaction unit (1) to system Correct parameter setting is carried out, content includes threshold voltage, current threshold, power threshold；5) the electrical parameter collecting unit is to loops sample point voltage, electric current by sampling, counter circuit voltage, electric current, Power, harmonic parameters；The embedded controller (10) based on ARM Cortex-M0 in the real-time controlling unit (2) passes through Spi bus, each electric energy computation chip in each electrical parameter acquisition module (3) based on high-precision electric energy computation chip is calculated Data are read out；The built-in Linux operating system (6) based on ARM Cortex-A8 in the man-machine interaction unit (1) By RS485 buses, using Modbus-RTU communications protocol in real-time controlling unit (2) based on ARM Cortex-M0's Embedded controller (10) data streams read makes requests on, and the data for asking to obtain are included on LCDs (4)；6) parameter information set according to step 4), the embedded control based on ARM Cortex-M0 in real-time controlling unit (2) Device (10) processed generates alarm or non-alarm state information by comparing the electrical parameter values of collection with corresponding alarming threshold value, passes through The built-in Linux based on ARM Cortex-A8 that RS485 buses send status information in man-machine interaction unit (1) operates System (6)；The built-in Linux operating system (6) based on ARMCortex-A8 in man-machine interaction unit (1) is further according to setting Parameter information, pass through corresponding relay output end mouth (13) state in RS485 bus marcos real-time controlling unit (2)；7) when there is the input of lightning protection device warning message through lightning protection device input port (12), in real-time controlling unit (2) based on ARM Cortex-M0 embedded controller (10) by RS485 buses warning message be sent in man-machine interaction unit (1) based on ARM Cortex-A8 built-in Linux operating system (6)；In man-machine interaction unit (1) based on ARM Cortex-A8's Built-in Linux operating system (6) further according to setting parameter information, by RS485 bus marcos real-time controlling unit (2) Corresponding relay output end mouth (13) state；8) man-machine interaction unit (1) communicates RS485 interfaces (9) by Ethernet interface (8) or data center and moved with data center Force environment monitoring system connects；Data center's dynamic environment monitoring system passes through TCP/IP or Modbus-RTU agreements and man-machine friendship The built-in Linux operating system (6) based on ARM Cortex-A8 in mutual unit (1) carries out data communication, realizes to distribution The dynamic environment monitoring of first cabinet of each row.
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