CN101938165A - Ship power distribution monitoring information acquisition system - Google Patents
Ship power distribution monitoring information acquisition system Download PDFInfo
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- CN101938165A CN101938165A CN 201010506729 CN201010506729A CN101938165A CN 101938165 A CN101938165 A CN 101938165A CN 201010506729 CN201010506729 CN 201010506729 CN 201010506729 A CN201010506729 A CN 201010506729A CN 101938165 A CN101938165 A CN 101938165A
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Abstract
The invention aims at a multipath power distribution branch circuit with an intelligent breaker and provides a ship power distribution monitoring information acquisition system which is characterized by comprising a main control box and N subcontrol boxes, wherein each subcontrol box is independently connected with the main control box; the main control box comprises a field acquisition and communication module, a data processing module and a network communication module, wherein the field acquisition and communication module in the main control box is directly connected with the intelligent breaker arranged on the required monitored power distribution branch circuit in parallel and is used for collecting data, the input end of the data processing module is connected with the field acquisition and communication module in the main control box and the subcontrol boxes, the data processing module is used for processing all data collected by the main control box and the subcontrol boxes and reporting a result to the network communication module, and the result is transmitted to an upper-layer monitoring network by a two-way CAN bus; and each subcontrol box comprises a field acquisition and communication module and a retransmission unit, wherein the field acquisition and communication module is connected with the intelligent breaker arranged on the required monitored power distribution branch circuit and is used for transmitting the collected data to the main control box from the retransmission unit.
Description
Technical field
The invention belongs to power monitoring equipment, be specifically related to a kind of based on the bus distributed ship power distribution monitoring information acquisition system of CAN.
Background technology
Along with boats and ships power load demand constantly enlarges, full ship distribution line and the controller switching equipment distributed points is many, wide, dispersion is more and more higher for the requirement of the fault detect of distribution network and maintenance.At present, the monitoring means of domestic boats and ships distribution network operation is relative with managerial skills backward, only mainly realize at the most of boats and ships of the operational management of distribution system, and the imitation screen that adopts can only reflect the extremely a spot of information of adapted electric system (important distribution branch road closes/minute state) by establishing imitation screen at collection control position.In addition, if will obtain the power distribution information of concrete subordinate load, then need to rely on the means of manual measurement and judgement.Thereby ubiquity that data acquisition is untimely, statistics is inaccurate, discreteness is big in time, accuracy is low for data, can't realize many drawbacks such as the fault detect of distribution network and centralized management, efficient are low, weak effect.So not only time-consuming but also effort can not be made quick reflection to failure condition, more can not satisfy the demand of modern naval vessels power consumption equipment fully.
In addition, what conventional ship power distribution monitoring was generally adopted is electric parameters transducer or transducer, measures the method for various electric weight of electric power system and non-electrical parameter.There is many inevitable shortcomings: problems such as big as taking up an area of the space, wiring quantity is many, harmonic component is big for the precision influence of transmitter, measurement stability and precision, mounting means are dumb.
At present, according to the actual load demand, general boats and ships load central switchboard is furnished with the about 10 tunnel distribution branch roads, for this distribution panelboard, small-sized monitoring system just can meet the demands, but shields for the main distribution board load, have the about 60 tunnel distribution branch roads of intelligent breaker, then can't meet the demands.
Summary of the invention
The technical problem to be solved in the present invention is: at the multichannel power distribution branch road that has intelligent breaker, provide a kind of ship power distribution monitoring information acquisition system.
The present invention solves the problems of the technologies described above the technical scheme of being taked to be: ship power distribution monitoring information acquisition system, it is characterized in that: it is made up of a Main Control Tank and N sub-control box, each sub-control box connects with Main Control Tank separately, and the quantity N of sub-control box decides on the quantity of intelligent breaker on the distribution branch road of required monitoring;
Described Main Control Tank is made up of collection in worksite communication module, data processing module and network communication module; Collection in worksite communication module in the Main Control Tank directly with the distribution branch road of required monitoring on intelligent breaker connect also image data; Data processing module input in the Main Control Tank connects with collection in worksite communication module and sub-control box in the Main Control Tank, data processing module is handled all data that Main Control Tank and sub-control box collect, and the result is met at network communication module is transferred to the upper strata monitoring network by two-way CAN bus;
Described sub-control box is made up of collection in worksite communication module and retransmission unit; Intelligent breaker connects on the distribution branch road of collection in worksite communication module and required monitoring, the data that collect is passed to the data processing module of Main Control Tank by retransmission unit.
Press such scheme, described collection in worksite communication module adopts ModBus-RTU communication protocol and RS-485 communication mode, adopts the data of intelligent breaker on the described distribution branch road on ActiveX EXE technology multitask asynchronous collecting four road serial ports; Described data comprise that real-time electric quantity data, circuit-breaker status, long delay are threaded off, short time delay is threaded off, instantaneous trip information.
Press such scheme, the connecting mode of intelligent breaker is on described collection in worksite communication module and the described distribution branch road: intelligent breaker is concatenated into RS-485 bus disconnecting switch branch road, per 2 RS-485 bus disconnecting switch branch roads connect with a collection in worksite communication module, and the number of the intelligent breaker on every RS-485 bus disconnecting switch branch road mostly is 10 most.
Press such scheme, collection in worksite communication module, data processing module and the network communication module of described Main Control Tank are integrated in the box industrial computer.
Press such scheme, the collection in worksite communication module and the retransmission unit of described sub-control box are integrated in the built-in industrial control machine.
Press such scheme, it also comprises display, and display connects with the data processing module of described Main Control Tank.
Press such scheme, described data processing module forms load screen line chart, communications status system diagram, electric weight cumulative data table, event log and alarm failure tabulation after with the data processing that collects, and is presented on the display with the man-machine interface form.
Operation principle of the present invention is: under the power distribution network normal operation, the present invention monitors the power distribution network operating condition, show three sections load screen line chart information about power (comprising electric current, voltage, power, circuit-breaker status, power factor etc.) in real time, can optimize the power distribution network operational mode.When power distribution network break down or the misoperation situation under, the present invention orients faulty line and fault type rapidly, is convenient to the timely processing and the eliminating of fault, improves the fail safe of distribution system.In addition, and can be reported to the upper management position, make higher level department in time dispatch, avoid accident to enlarge by network; Simultaneously, alleviate crewman's regular maintenance management workload, help reducing the staff.
Its transfer of data of the present invention adopts latticed form, by this device of distributed installation in full ship controller switching equipment, it inserts in each regional distribution monitoring system network of establishment nearby, can realize each controller switching equipment monitoring information is at first inserted regional subnet, insert upper strata power monitoring net by gateway then and transfer to distribution monitoring main website.Thereby the parameters of electric power of all branch roads carries out concentrating monitoring and remote failure to detect in real time in collection control position is realized each controller switching equipment of full ship.
Beneficial effect of the present invention is:
1, by advanced person's software algorithm and reliable hardware circuit, broken through traditional distribution detection mode, utilization communication network transmission electric quantity data makes that the collection of electric weight is more succinct, and is efficient;
2, by distributed this device of installation, both can realize the various electric quantity datas of long-distance transmissions with a twisted-pair feeder shielded type cable, can satisfy the characteristics that the boats and ships space is little, the distribution branch road is many;
3, adopt the mode of numerical calculation to measure, measured value is a real effective, and good stability is not subjected to Harmonic Interference to be applicable to various complicated and abominable place, and antijamming capability is stronger;
4, adopt the communication protocol of standard, can carry out network service with multiple PLC, RTU and industrial configuration software;
5, can be installed in the controller switching equipment, flexible for installation, the liquid crystal display interface display is directly perceived;
6, big, the many characteristics along separate routes of, electric current low at ship power distribution voltage, the present invention has that the current detecting passage is many, the configuration simple and flexible, volume is little, reliability is high, good stability, antijamming capability by force, have a good electromagnetic compatibility safeguard measure.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention
Fig. 2 is the Main Control Tank structural representation
Fig. 3 is the sub-control box structural representation
Fig. 4 is the workflow diagram of one embodiment of the invention
Embodiment
Fig. 1 is the structural representation of one embodiment of the invention, present embodiment is applicable to the power distribution network of 60 road distribution branch roads that have the STJ18 intelligent breaker, adopt 1 Main Control Tank and 2 methods that sub-control box is gathered simultaneously, per 10 intelligent breakers are concatenated into 1 RS-485 bus disconnecting switch branch road, Main Control Tank and each sub-control box connect 2 RS-485 bus disconnecting switch branch roads respectively, by Main Control Tank a circuit-switched data are stored then and by the networking interface circuit-switched data are transmitted.Adopt this method can reduce the poll quantity and the poll time of RS-485 bus, improve the real-time of system.
Fig. 2 is the Main Control Tank structural representation, and Main Control Tank is made up of collection in worksite communication module, data processing module and network communication module; Intelligent breaker connects on the distribution branch road of collection in worksite communication module and required monitoring, and the data that collect are passed to data processing module; Data processing module is handled the data that collect, and the result is met at network communication module is transferred to the upper strata monitoring network by two-way CAN bus.It also comprises display, and display connects with the data processing module of described Main Control Tank.The data processing module of Main Control Tank forms load screen line chart, communications status system diagram, electric weight cumulative data table, event log and alarm failure tabulation after with the data processing that collects, and is presented on the display with the man-machine interface form.
Fig. 3 is the sub-control box structural representation, and sub-control box is made up of collection in worksite communication module and retransmission unit; Intelligent breaker connects on the distribution branch road of collection in worksite communication module and required monitoring, the data that collect is passed to the data processing module of Main Control Tank by retransmission unit.
Fig. 4 is the workflow diagram of one embodiment of the invention, fetches data from the collection in worksite communication module, carries out graphic interface and shows, and the data of intelligent breaker are delivered to the data processing module buffering area.2 sub-control box adopt the ModBus communication protocols and the RS-485 communication mode is gathered respectively 21～No. 40 and 41～No. 60 intelligent breakers prop up circuit-switched data.Main Control Tank adopts ModBus communication protocol and 1～No. 20 intelligent breaker of RS-485 communication mode collection to prop up circuit-switched data; And receive 21～No. 60 intelligent breaker branch roads that 2 sub-control box gather by the RS-485 bus simultaneously and handle the back data.The real-time electric quantity data of 60 road distribution branch roads, circuit-breaker status and the fault that Main Control Tank will detect in task time information such as (long delay dropout, short time delay dropout, instantaneous trips) is concentrated, is handled and stores.By protocol conversion, various parameters of electric power and fault message after the upper strata monitor network sends processing in real time and analyzes.Data send the upper strata monitor network to after handling by the present invention again, can improve data transmission bauds, avoid transmission delay, and can accurately locate, and the personnel that maintain easily safeguard as early as possible.
The data that the collection in worksite communication module adopts ModBus-RTU communication protocol and RS-485 communication mode to gather intelligent breaker on the described distribution branch road, adopt the real time data on ActiveX EXE technology multitask asynchronous collecting four road serial ports, the corresponding thread of each object, during the modular program operation is to be independent of main program work, and it provides external interface to fetch the data of collection for main program.
Data processing module adopts VC6.0 to be written as DLL, adopts two threads to receive 2 CAN port datas respectively.One thread sends the buffering area peek from the CAN data and delivers to the CAN port; All circuit breaker data that another thread process is sent from main program, routine data, warning displacement data are processed into corresponding frame format respectively.Use 1 second timing function that the routine data frame is delivered to CAN and send buffering area, have warning displacement data instant to deliver to buffering area simultaneously.This module also realizes routine data of storage in 5 minutes simultaneously and calculates the electric weight of 60 circuit breakers.
Present embodiment shows three sections load screen line charts, communications status system diagram, alarm failure tabulation, event log and electric weight cumulative data tables by the mode of display is installed with the man-machine interface form.Specific as follows:
A. with the line chart form, show voltage, gross power (when father's former wife's branch power sum), the frequency of each intelligent breaker branch current of three sections busbars, power, circuit-breaker status, fault information such as (short time delay dropout, long delay dropout, instantaneous trips) and busbar in real time.When a busbar branch road broke down, monitoring interface can automatically switch to the concrete fault branch of this busbar, can eject the current warning of a warning wicket prompting user simultaneously immediately, and the user need confirm to carry out the respective handling operation.
B. distribution monitoring information acquisition system is handled the information of all collections, show by Main Control Tank and is sent to the upper strata monitor network by Main Control Tank, therefore must guarantee the operate as normal of communication line.Interface of design monitors the working condition of real-time system communication line in the software monitors interface.When communication failure, the red-black flicker of communications status flopover circuit, these indications of reporting to the police keep indicating status always before fault recovery, can eject the current warning of a warning wicket prompting user simultaneously immediately, and the user need confirm to carry out the respective handling operation.
C. when communication failure or intelligent breaker fault took place, device recorded the warning message that occurs in the database and preserves in order to checking.The user can switch to the warning list picture and show each intelligent breaker time of failure and fault type.The tabulation of reporting to the police shows current nearest bimestrial alarm history data, and the user carries out page turning by turnover key up and down and checks.
D. the power consumption information of each intelligent breaker branch road of device accumulative total shows in the mode of figure, interface of every section busbar, in the interface, show time, accumulative total power consumption that power consumption begins to add up, and can realize the function of each branch road power consumption zero clearing or whole zero clearings.When zero clearing with the zero clearing time for adding up the electric weight initial time once more.
Electric weight cumulative calculation: Q=K1 * T1+K2 * T2+ ... + Kn * Tn.Wherein Tn=5/60 hour, Kn was 5 minutes instantaneous powers that begin to add up.
E. install can write down once all intelligent breakers every five minutes routine data (voltage, electric current, power etc.) in database, and the power consumption that statistics once should each intelligent breaker branch road of time period, adding up then is saved in the database.The data of database storage time is no less than 2 months.
In the present embodiment, collection in worksite communication module, data processing module and the network communication module of Main Control Tank is integrated in the box industrial computer of Siemens, and the collection in worksite communication module of sub-control box and retransmission unit are integrated in the Siemens PC/104 built-in industrial control machine.
Main Control Tank adopts Windows 2000 operating systems based on Windows NT framework, as the operating system of extensive use in the industrial environment, has characteristics such as resources occupation rate is little, powerful, stable, reliability is high, fail safe is good.Various application software are had fabulous compatibility, and easy to operate, the friendly application that is fit to very much native system of man-machine interface.
The application software of Main Control Tank adopts VB6.0 to write, and Visual Basic (being called for short VB) programming language is a kind of visual, OO, event driven advanced structuralized programming language of employing.Its simple, flexible, easy-to-use characteristics make it to design the application program of moving very easily under the Windows environment.
All programs of sub-control box are all moved under the DOS system.The dos operating system resources occupation rate is little, simple to operate, code is carried out efficient height, reliability height, is highly suitable on this equipment and uses, and realizes gathering in real time, and regularly sends data to Main Control Tank.Dos operating system is powerful, is that other system is incomparable to the operating efficiency of file and disk.The application software of sub-control box adopts the C language to write, and composing software is TurboC.Compare with assembler language, the program of writing with the C language has more excellent portability.
The communication protocol that the present invention relates to has:
(1) intelligent breaker communication protocol:
ModBus-RTU communication protocol is adopted in the data communication of STJ18 intelligent breaker.
Transmission means: RS-485 principal and subordinate half-duplex mode
Communication baud rate: 9600bps
Communication media: Shielded Twisted Pair
Data frame format: 1 start bit, 8 bit data, no position of rest
A data packet format:
| The address | Function code | Data | Check code |
| 8-Bits | 8-Bits | N?x?8-Bits | 16-Bits |
The read data frame format description:
The return data frame format:
Programme according to STJ18 intelligent controller communication protocol fully with communicating by letter of STJ18 intelligent breaker, fixedly read 29 data at every turn, once run through.
(2) sub-control box and Main Control Tank communication protocol
Transmission means: RS485 principal and subordinate half-duplex mode
Communication baud rate: 38400bps
Communication media: Shielded Twisted Pair
Data frame format: 1 start bit, 8 bit data, no position of rest
Sub-control box is not done any processing after having gathered the circuit breaker data, directly be sent to Main Control Tank by RS485.Divide control accord with at the beginning adding branch of having gathered the frame circuit breaker Frame (; ) again Frame not tail add pound sign symbol (#), at last Frame is sent to Main Control Tank with the ASCII character form.A data packet format:
| Initial symbol | The ASCII character of frame circuit breaker return data | End mark |
| ； | # |
(3) with the CAN network communication protocol
, can realize to upper strata power monitoring network output distribution network real time execution information by distribution monitoring information harvester:
A. state variation reports, and message comprises information such as circuit breaker numbering, variable condition, fault type, time time of origin.
B. electric parameter transmission comprises information such as voltage, electric current, power, adopts the mode of timed sending to send, and message comprises circuit breaker numbering, parameter kind and parameter values.
C. time unification function, according to host computer to the clock order, unified network time.
D. when inquiring about, can not stop the poll work of circuit breaker, change and still can in time report if circuit-breaker status takes place simultaneously.
Aspect data base administration,, the data memory cycle not grow (warning message 2 months), so employing ACCESS database is as storage medium because data access amount of the present invention is little.
The data of being stored are electric weight cumulative data table and warning message tables of data.
Electric weight cumulative data table comprises three fields, and a field is the numbering of 60 frame circuit breakers, and a field record begins the time of accumulative total, the charge value of a field for adding up.When the accumulative total electric weight was carried out zero clearing, the date and time when taking place with clear operation added up the electric weight vanishing, respective field charge value zero clearing in the database as electric weight accumulative total origination date and time.The electric weight monitor data upgraded once in per five minutes, during renewal, earlier the electric weight aggregate-value was read, and added five minutes used electric weight of load in firm past, then data updated was write in the electric weight accumulative total field value, replaced original data.The user can check the electric weight cumulative data by electric weight accumulative total interface.
The warning message tables of data comprises two fields, and the time of field for reporting to the police and taking place, a field is an alarm content information.There is new warning can behind the alarm logging table, append new alarm logging automatically during postpartum.When the user checks that historical warning need switch to the warning message list interface and check.If system starts shooting always, can carry out a secondary data deletion action at zero point every day.With current time calculating, search all data record before two months in the alert data table, and carry out deletion action.
Claims (7)
1. ship power distribution monitoring information acquisition system, it is characterized in that: it is made up of a Main Control Tank and N sub-control box, and each sub-control box connects with Main Control Tank separately, and the quantity N of sub-control box decides on the quantity of intelligent breaker on the distribution branch road of required monitoring;
Described Main Control Tank is made up of collection in worksite communication module, data processing module and network communication module; Collection in worksite communication module in the Main Control Tank directly with the distribution branch road of required monitoring on intelligent breaker connect also image data; Data processing module input in the Main Control Tank connects with collection in worksite communication module and sub-control box in the Main Control Tank, data processing module is handled all data that Main Control Tank and sub-control box collect, and the result is met at network communication module is transferred to the upper strata monitoring network by two-way CAN bus;
Described sub-control box is made up of collection in worksite communication module and retransmission unit; Intelligent breaker connects on the distribution branch road of collection in worksite communication module and required monitoring, the data that collect is passed to the data processing module of Main Control Tank by retransmission unit.
2. ship power distribution monitoring information acquisition system according to claim 1, it is characterized in that: described collection in worksite communication module adopts ModBus-RTU communication protocol and RS-485 communication mode, adopts the data of intelligent breaker on the described distribution branch road on ActiveX EXE technology multitask asynchronous collecting four road serial ports; Described data comprise that real-time electric quantity data, circuit-breaker status, long delay are threaded off, short time delay is threaded off, instantaneous trip information.
3. ship power distribution monitoring information acquisition system according to claim 1 and 2, it is characterized in that: the connecting mode of intelligent breaker is on described collection in worksite communication module and the described distribution branch road: intelligent breaker is concatenated into RS-485 bus disconnecting switch branch road, per 2 RS-485 bus disconnecting switch branch roads connect with a collection in worksite communication module, and the number of the intelligent breaker on every RS-485 bus disconnecting switch branch road mostly is 10 most.
4. ship power distribution monitoring information acquisition system according to claim 3 is characterized in that: collection in worksite communication module, data processing module and the network communication module of described Main Control Tank are integrated in the box industrial computer.
5. ship power distribution monitoring information acquisition system according to claim 4 is characterized in that: the collection in worksite communication module and the retransmission unit of described sub-control box are integrated in the built-in industrial control machine.
6. ship power distribution monitoring information acquisition system according to claim 4, it is characterized in that: it also comprises display, display connects with the data processing module of described Main Control Tank.
7. ship power distribution monitoring information acquisition system according to claim 6, it is characterized in that: described data processing module forms load screen line chart, communications status system diagram, electric weight cumulative data table, event log and alarm failure tabulation after with the data processing that collects, and is presented on the display with the man-machine interface form.
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| CN 201010506729 CN101938165A (en) | 2010-10-14 | 2010-10-14 | Ship power distribution monitoring information acquisition system |
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| CN 201010506729 CN101938165A (en) | 2010-10-14 | 2010-10-14 | Ship power distribution monitoring information acquisition system |
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Cited By (7)
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| CN105471969A (en) * | 2015-11-17 | 2016-04-06 | 国家电网公司 | Power grid data processing cloud platform system |
| CN106773861A (en) * | 2016-12-30 | 2017-05-31 | 单金龙 | A kind of electronic well lid Intelligent fire-fighting control system of underground pipe gallery |
| WO2018059504A1 (en) * | 2016-09-28 | 2018-04-05 | 德布森电气（上海）有限公司 | Single-phase voltage self-resetting module detection apparatus |
| CN108594753A (en) * | 2018-06-05 | 2018-09-28 | 明珠家具股份有限公司 | A kind of device data acquisition and analysis system and its working method |
| CN110099049A (en) * | 2019-04-19 | 2019-08-06 | 中电科安科技股份有限公司 | Communication protocol for intelligent micro-circuit breaker and control centre's information exchange |
| CN112018889A (en) * | 2020-08-25 | 2020-12-01 | 中国舰船研究设计中心 | Ship distributed power distribution monitoring network and verification method |
| CN113794612A (en) * | 2021-09-09 | 2021-12-14 | 恒安嘉新（北京）科技股份公司 | Control monitoring device and system of CAN network |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471969A (en) * | 2015-11-17 | 2016-04-06 | 国家电网公司 | Power grid data processing cloud platform system |
| WO2018059504A1 (en) * | 2016-09-28 | 2018-04-05 | 德布森电气（上海）有限公司 | Single-phase voltage self-resetting module detection apparatus |
| CN106773861A (en) * | 2016-12-30 | 2017-05-31 | 单金龙 | A kind of electronic well lid Intelligent fire-fighting control system of underground pipe gallery |
| CN108594753A (en) * | 2018-06-05 | 2018-09-28 | 明珠家具股份有限公司 | A kind of device data acquisition and analysis system and its working method |
| CN110099049A (en) * | 2019-04-19 | 2019-08-06 | 中电科安科技股份有限公司 | Communication protocol for intelligent micro-circuit breaker and control centre's information exchange |
| CN112018889A (en) * | 2020-08-25 | 2020-12-01 | 中国舰船研究设计中心 | Ship distributed power distribution monitoring network and verification method |
| CN113794612A (en) * | 2021-09-09 | 2021-12-14 | 恒安嘉新（北京）科技股份公司 | Control monitoring device and system of CAN network |
| CN113794612B (en) * | 2021-09-09 | 2023-02-17 | 恒安嘉新（北京）科技股份公司 | Control monitoring device and system of CAN network |
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Application publication date: 20110105 |