CN101267444B - For the means of communication between the control point in supervisory control system and Surveillance center - Google Patents

For the means of communication between the control point in supervisory control system and Surveillance center Download PDF

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Publication number
CN101267444B
CN101267444B CN200710038129.1A CN200710038129A CN101267444B CN 101267444 B CN101267444 B CN 101267444B CN 200710038129 A CN200710038129 A CN 200710038129A CN 101267444 B CN101267444 B CN 101267444B
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order
communication
surveillance center
control point
frame
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CN101267444A (en
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叶建忠
陈剑峰
田洪亮
邬超
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Shanghai Electric Power Industry (group) Ltd By Share Ltd
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Shanghai Electric Power Industry (group) Ltd By Share Ltd
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Abstract

The present invention relates to signalling class, relate to a kind of for the communications protocol between the control point in dynamic environment and Surveillance center concretely, for in distributed monitoring system, the order of each control point and Surveillance center and the mutual of response in resolution system, this agreement has opening framework, can expand command frame and corresponding Echo Frame according to actual needs flexibly; There is error detection function, there is frame head postamble structure and be convenient to find out complete frame when communication order confusion; Define and need to send three times continuously, to guarantee that Surveillance center can receive to significant data; There is MI sequence number, on communication link because of time delay produce information after carry out suitable process; Remote reboot order can be specified, by the order of receiving center, the watchdog reset circuit of self is resetted, to restart the modules of subordinate control point in Surveillance center, to solve burst deadlock problem.

Description

For the means of communication between the control point in supervisory control system and Surveillance center
Technical field
The present invention relates to signalling class, relate to a kind of for the means of communication between the control point in supervisory control system and Surveillance center concretely, in distributed monitoring system, the order of each control point and Surveillance center and the mutual of response in resolution system.
The instruction sent by communication module reception Surveillance center in supervisory control system, is forwarded to corresponding module according to the requirement of instruction, by data Returning communication module after module responds, then is transmitted to Surveillance center by communication module.Invention provides for communication baud rate, command frame format, data frame format and mechanism for correcting errors that communication module and Surveillance center carry out replying.
Background technology
Dynamic environment is the basis of communication system, and the good working state of dynamic environment is the key that communication system normally works.The dynamic environment of general communication equipment will have: the state of the voltage of battery and operating state, AC distribution and DC distribution, indoor temperature and humidity, and whether has the state of emergency (fire alarm, water logging, illegally enter).Along with coming into operation of a large amount of power base station, the sharply rising of maintenance and management cost, for reducing, professional configures, the consideration of the maintenance quality that reduces labor intensity, improves, the demand built up for dynamic environment monitoring system is extremely urgent.
Summary of the invention
The object of the invention is according to above-mentioned the deficiencies in the prior art part, there is provided a kind of for the means of communication between the control point in supervisory control system and Surveillance center, this method provides the interconnected communication protocol standard in control point and Surveillance center, interface comprises communication interface between the inner different monitoring module of supervisory control system and Surveillance center, realize the mutual communication of monitoring module and Surveillance center, the Echo Frame of this agreement has frame head postamble structure, be convenient to find out complete frame when communication order confusion, there is MI sequence number, can on communication link because of time delay produce information after carry out suitable process, set in software, define and need to send three times continuously to significant data, to guarantee that Surveillance center can receive.
The object of the invention realizes being completed by following technical scheme:
A kind of for the means of communication between the control point in supervisory control system and Surveillance center, described method adopts following communications protocol, described communications protocol comprises command frame and Echo Frame, it is characterized in that described Echo Frame is by beginning flag (SOI), order destination address (DA), order source address (sa), order mark (MI), order body (MC), concrete data (DC), end mark (EOI) sorts composition successively, the address number distributed to equipment when described order destination address (DA) and order source address (sa) are for depositing access each equipment, described order mark (MI) is for depositing the relative importance value of MI, described concrete data (DC) adopt binary-coded decimal, described command frame and Echo Frame send three times continuously.
Described order destination address (DA) and order source address (sa) are a byte, comprise respectively: PC=0X00, battery monitoring unit=0x01-0x04, simulation monitoring unit=0x05, digital supervision unit=0x06, clock and data record unit=0x07, communication unit=0X08, expansion equipment address is followed successively by 0X0A, 0X0B, 0X0C, 0X0D intelligence serial ports.
Described order mark (MI) numerical value is 16 system numbers, and in order to determine the corresponding relation of an order and its reply data, numerical value is from 01-0xCA.
Described order body (MC) is represented by 3 16 binary value.
Advantage of the present invention is, has opening framework, can expand command frame and corresponding Echo Frame according to actual needs flexibly; There is error detection function, there is frame head postamble structure and be convenient to find out complete frame when communication order confusion; Define and need to send three times continuously, to guarantee that Surveillance center can receive to significant data; There is MI sequence number, on communication link because of time delay produce information after carry out suitable process; Remote reboot order can be specified, by the order of receiving center, the watchdog reset circuit of self is resetted, to restart the modules of subordinate control point in Surveillance center, to solve burst deadlock problem.
Protocol infrastructure is clear, favorable expandability; The form of frame structure ensure that communication reliable, stable, the error rate is low; Adopting adds up asks mould negate to add the method for calibration of, and antijamming capability is strong; Meet dynamic environment monitoring Design of Machine Room requirement specification, and improved on this basis, carry out expansion functionally.
Accompanying drawing explanation
Accompanying drawing 1 is embodiment of the present invention control block diagram.
Embodiment
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that the understanding of technical staff of the same trade:
As shown in Figure 1, number in the figure represents respectively:
FSU: machine room (station) field terminal unit;
AUTODEV: machine station smart machine (Switching Power Supply, intelligent entrance guard etc.);
COMM: Intelligent Communication Board, is responsible for the communication of external serial communication and external smart machine;
D+R+T:DRT module is clock display module, display module+logging modle+clock control module, for display data content, and record data, clock display and setting;
B: battery module, maximum permission 4 pieces, corresponding four Battery packs, for gathering cell voltage, electric current, data exceed alarming threshold and then report;
A+D: analog module+digital module, allow external 33 analog quantitys, 16 digital quantities, carry out analog quantity, digital data acquisition by external various kinds of sensors, have alarm then to report.
The physical interface that the present embodiment relates to and communication mode are:
Serial communication port adopts RS232 or the RS485 mode of standard.Information transmission mode is asynchronous system, start bit 1, data bit 8, position of rest 1, no parity check position.Message transmission rate is 9.6,19.2,115.2kbit/s is optional.
External interface: 4 road smart machines export serial ports, 1 road PC debug serial port, and 1 road E1 exports serial ports.Wherein, PC debug serial port and E1 export serial ports and share, and select to control to export by relay.After reserved 1 road serial ports, short message module exports.
Communication mode: whole FSU has three cover communication systems, adopts the master-slave communication mode adopting RS232 or RS485 of standard to connect with serial communication port.
The communication system of FSU and exterior PC.Exterior PC is main, FSU be from.
The communication system of FSU and monitored smart machine.FSU is main, monitored smart machine be from.
The communication system of FSU inside, as shown in figure, the communication between COMM, D+R+T, B, A+D, passive node, adopts 485 master-slave mode communications, wherein D+R+T module is main, other module be from.The communication of each intermodule is all sent with D+R+T master and is set up communication.
The present embodiment relate to for the means of communication between the control point in supervisory control system and Surveillance center, comprise two kinds of forms, command frame and acknowledgement frames.
Command frame basic format
Sequence number 1 2 3 4 5 6 9
Byte number 1 1 1 1 3 N 1
Symbol SOI DA SA MI MC DC EOI
The explanation of frame format each several part
Sequence number Symbol Represent meaning Remarks
1 SOI Beginning flag (START OF FRAME) FDH
2 DA Destination Address DA (order destination address)
3 SA Source Address SA (order source address)
4 MI Order mark
5 MC Order body
6 DC Concrete data
9 EOI End mark FEH
Echo Frame basic format
Sequence number 1 2 3 4 5 6 9
Byte number 1 1 1 1 3 N 1
Symbol SOI DA SA MI MC DC EOI
The explanation of frame format each several part
Sequence number Symbol Meaning Remarks
1 SOI Beginning flag (START OF INFORMATION) FDH
2 DA Destination Address DA (order destination address)
3 SA Source Address SA (order source address)
4 MI Order mark
5 MC Order body
6 DC Concrete data
9 EOI End mark FEH
Order destination address DA and order source address SA is a byte, order device address:
PC=0X00
Battery monitoring unit=0x01-0x04
Simulation monitoring unit=0x05
Digital supervision unit=0x06
Clock and data record unit=0x07
Communication unit=0X08
Expansion equipment address is followed successively by 0X0A, 0X0B, 0X0C, 0X0D intelligence serial ports.
Order mark MI, in order to determine the corresponding relation of an order and its reply data, namely an order is identical with the MI of the Frame of its correspondence, and the numerical value of MI is 16 system numbers, and numerical value is from 01-0xCA.The MI value of the present embodiment mainly obtains from PC command frame, the command frame that non-PC originating end is initiated, and the value of MI is C1H.
Order body MC, the concrete operations content of namely ordering, is represented by 3 16 binary value, can form thousands of orders by the content of DA and MC.
Concrete data DC adopts binary-coded decimal data representation, and DC is with data content by Frame, and its length is 0-50byte, and the data of battery pack and analog quantity represent with binary-coded decimal, the data binary number representation of digital quantity.
DRT module is not responded after retransmitting three times, then complain to frame to COMM module sending module fault.
This agreement can according to the specific requirement of application, definition command body MC and corresponding data DC, thus can adapt to the application of different dcss.
The each software module function of the present embodiment is single, and design is relatively simple, and easy software modification, edition upgrading is relatively convenient.
The major function of FSU dynamic environment monitoring software is: in operation, by its control to hardware circuit, completes the collection of the Power and environment data to whole base station, process, transmission and relevant control action.The monitoring software design of whole equipment is the same with its hardware configuration, employing functional module designs, and different software function modules is loaded in the CPU of different hardware module, identical hardware function, it software function module also identical, modular Software for Design has following characteristics:
Corresponding with each hardware module, whole FSU software is made up of ice storing time software module, analog quantity inspection software module, digital quantity inspection software module, clock log software module and full-duplex communication software module.
Each software module is independent mutually, and each module division of labor is clear, non-cross, overlapping.
Each software module carries out data transmission and exchange by internal flow of information.Internal flow of information one is the information exchange between each sample detecting module and clock log module, information is provided to data record, internal flow of information two is the information exchange between each module and each full-duplex communication module, and external information stream is the information exchange of full-duplex communication module and Surveillance center.The parallel running simultaneously of each software module, the speed of service is fast, and data processing is real-time.
Inside and outside information interchange adopts microdata structure, communication frame structure simple and flexible, and communication speed is fast, and treatment effeciency is high, and increase or change control order are conveniently.Each software module function is single, and design is relatively simple, and easy software modification, edition upgrading is relatively convenient.
The following performance of FSU software makes it have very strong fault-tolerant error correcting capability, guarantees that running software is safe and reliable:
In the command frame of software and data frame structure, there is " source address " DS and " destination address " DA, different modules and external smart machine mouth, be assigned different " address ": 1# battery module address is 01, 2# battery module address is 02, 3# battery module address is 03, 4# battery module address is 04, analog signal detection module address is 05, digital quantity detection module address is 06, clock log module's address is 07, full-duplex communication module's address is 08, 1# smart machine port address is 0A, 2# smart machine port address is 0B, 3# smart machine port address is 0C, 4# smart machine port address is 0D.Each software module judges the order that receives and data according to oneself " address ", whether to one's name, otherwise will not one's own information, or the information of " address " mistake is kept outside of the door.
The command frame of software has more rigorous order body MC structure, each module " address " and the combination of order body, make each order be all " uniquely " in whole command set, therefore each software module is easy to the bad command content received to ignore.
Data in data volume DC in the frame structure of software are binary-coded decimal composition, it except have higher than ASCII character must order body MC, they all by 16 system numbers form-form, like this, the expression efficiency that each software module is many, simultaneously by being obviously different from other parts in frame structure-frame head SOF, postamble EOF, when receiving and send data, can not because of the randomness of data value and random occur and frame head SOF, postamble EOF, obscuring of order body MC content and making a mistake.
" house dog " (Watchdog) that each module has hardware and software combination restarts function, once due to strong interference, when producing software module run-time error, CPU is by autoboot, and software module is recovered normal and run.
FSU internal module is connected by communication link, and the module gone wrong can change mode of operation into listen mode automatically, can not send data, therefore can not affect other modules and normally run.

Claims (5)

1. one kind for the means of communication between the control point in supervisory control system and Surveillance center, described method adopts following communications protocol, described communications protocol comprises command frame and Echo Frame, it is characterized in that described Echo Frame is by beginning flag (SOI), order destination address (DA), order source address (sa), order mark (MI), order body (MC), concrete data (DC), end mark (EOI) sorts composition successively, the address number distributed to equipment when described order destination address (DA) and order source address (sa) are for depositing access each equipment, described order mark (MI) is for depositing the relative importance value of MI, described concrete data (DC) adopt binary-coded decimal, described command frame and Echo Frame send three times continuously.
2. according to claim 1 a kind of for the means of communication between the control point in supervisory control system and Surveillance center, it is characterized in that described order destination address (DA) and order source address (sa) are a byte, comprise respectively: PC=0X00, battery monitoring unit=0x01-0x04, simulation monitoring unit=0x05, digital supervision unit=0x06, clock and data record unit=0x07, communication unit=0X08.
3. according to claim 2 a kind of for the means of communication between the control point in supervisory control system and Surveillance center, it is characterized in that the expansion equipment address of described order destination address (DA) and order source address (sa) is followed successively by 0X0A, 0X0B, 0X0C, 0X0D intelligence serial ports.
4. according to claim 1 a kind of for the means of communication between the control point in supervisory control system and Surveillance center, it is characterized in that described order mark (MI) numerical value is 16 system numbers, in order to determine the corresponding relation of an order and its reply data, numerical value is from 01-0xCA.
5. according to claim 1 a kind of for the means of communication between the control point in supervisory control system and Surveillance center, it is characterized in that described order body (MC) is represented by 3 16 binary value.
CN200710038129.1A 2007-03-16 2007-03-16 For the means of communication between the control point in supervisory control system and Surveillance center Active CN101267444B (en)

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JP5306169B2 (en) * 2009-12-25 2013-10-02 ニッタン株式会社 Data transmission method and monitoring system
CN102075387B (en) * 2011-01-10 2012-10-31 京信通信技术(广州)有限公司 Method and device for communication of monitoring system
CN105812086B (en) * 2014-12-30 2019-05-03 深圳市科曼医疗设备有限公司 The communication means and system of patient monitor
CN111402525B (en) * 2020-04-26 2021-07-27 重庆红透科技有限公司 Equipment on-site positioning system and method in cabinet and operation and maintenance management system and method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1549501A (en) * 2003-05-13 2004-11-24 中兴通讯股份有限公司 Distributed central management method for special shaped network equipment in distributing network environment
CN1889468A (en) * 2005-06-28 2007-01-03 上海集成通信设备有限公司 Power and environment concentrated monitoring management system
CN1921260A (en) * 2006-09-01 2007-02-28 桂林航天电子有限公司 Intelligent power distribution administrative center

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1549501A (en) * 2003-05-13 2004-11-24 中兴通讯股份有限公司 Distributed central management method for special shaped network equipment in distributing network environment
CN1889468A (en) * 2005-06-28 2007-01-03 上海集成通信设备有限公司 Power and environment concentrated monitoring management system
CN1921260A (en) * 2006-09-01 2007-02-28 桂林航天电子有限公司 Intelligent power distribution administrative center

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Address after: 201206 floor, building D, No. 501 Jinqiao Jin Road, Shanghai, Pudong New Area, China

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