CN104202191A - Switching method of communication working modes of fault indicator remote transmission communication terminal and master station - Google Patents
Switching method of communication working modes of fault indicator remote transmission communication terminal and master station Download PDFInfo
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- CN104202191A CN104202191A CN201410445194.6A CN201410445194A CN104202191A CN 104202191 A CN104202191 A CN 104202191A CN 201410445194 A CN201410445194 A CN 201410445194A CN 104202191 A CN104202191 A CN 104202191A
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Abstract
The invention discloses a switching method of communication working modes of a fault indicator remote transmission communication terminal and a master station. The automatic switching of the communication working modes of the fault indicator remote transmission communication terminal is implemented through monitoring on the voltage of a battery or a capacitor which is arranged inside the fault indicator remote transmission communication terminal. The complete efficient fault indicator remote transmission communication terminal online working mode is built according to the actual situation and related technical requirements of a fault indicator on the basis. Compared with the existing real-time online mode, the online working mode is simple and practical particularly for the condition that the power taking mode such as solar energy power taking or CT (Current Transformer) power taking of the fault indicator communication terminal is unstable and the long-term stable and reliable work of the fault indicator remote transmission communication terminal can be implemented under the condition that the existing power taking mode is unchanged.
Description
Technical field
The invention belongs to electrical power distribution automation system technical field, relate in particular to the changing method of a kind of fault detector distant communication terminal and master station communication mode of operation.
Background technology
Fault detector distant communication terminal especially adopts the overhead line type of solar energy power taking and adopts the fault detector distant communication terminal of the cable line style of CT power taking, when continuous rainfall sky, normally power taking or distribution line primary current be hour for solar energy electricity getting device, power taking CT cannot normally work, and will cause fault detector distant communication terminal normally to work.If now line failure, fault-signal cannot on deliver to distribution main website, fault detector will not brought into play its due effect.Therefore, do not changing under the condition of existing way to take power, be necessary the mode of operation of reaching the standard grade of original fault detector distant communication terminal to improve.
Summary of the invention
The technical problem to be solved in the present invention is to provide the changing method of a kind of simple, practical and reliable fault detector distant communication terminal and master station communication mode of operation, do not changing under the condition of existing way to take power, realizing the work of fault detector distant communication terminal long-term stability.
For solving the problems of the technologies described above, the present invention is by the following technical solutions: the changing method of fault detector distant communication terminal and master station communication mode of operation, by measuring the voltage at battery/electric capacity two ends in fault detector remote transmission terminal DC power system, voltage is compared with setting limit value, switch between real time communication pattern and non-realtime traffic pattern according to comparative result.
Above-mentioned comparison is carried out according to following decision logic:
<a> is switched to the decision logic of non real-time line model by real-time online pattern: when the voltage at fault detector distant communication terminal DC power supply two ends in official hour, continue lower than set in advance threshold values time, fault detector distant communication terminal switches to non real-time upper ray mode by real time communication pattern;
<b> is switched to the decision logic of real-time online pattern by non real-time line model: in the time that the voltage at fault detector distant communication terminal DC power supply two ends continues to be more than or equal to the threshold values setting in advance in official hour, fault detector distant communication terminal switches in real time upper ray mode by non-realtime traffic pattern.
Above-mentioned non-realtime traffic pattern is:
<a> is at actual track fault-free and communication equipment during without burst amount information, fault detector distant communication terminal with the predefined moment of main station system, initiatively reach the standard grade, communicate with main website, after exchange line and device-dependent message, communication module in resting state, is waited for when the next default moment reaches the standard grade or fault occurs, is initiatively reached the standard grade (working method that fixed point is reached the standard grade);
<b> is in the time that actual track and communication equipment have fault or burst amount information to produce, fault detector distant communication terminal is initiatively reached the standard grade, communicate with main website, after the complete fault of active upload or burst amount information, communication module is in resting state, wait for when the next default moment reaches the standard grade or fault occurs, initiatively reach the standard grade.
For the problem of current fault detector distant communication terminal and mode of operation existence thereof, inventor has set up the changing method of a kind of fault detector distant communication terminal and master station communication mode of operation, by fault detector distant communication terminal inner battery/capacitance voltage is monitored, realize the automatic switchover of fault detector distant communication terminal communication mode of operation, main: in existing fault detector remote transmission terminal DC power system, add a measuring unit, for measuring the voltage at battery/electric capacity two ends; When voltage lower than set limit value time, fault detector distant communication terminal switches to non-realtime traffic pattern (that is: in the time that fault occurs by existing real time communication pattern, wake the communication module of communication terminal up, after being connected with main station system, initiatively main station system will be delivered on fault message; While thering is no fault at ordinary times, be the predefined moment, initiatively reach the standard grade, after master station communication, communication module in resting state, is waited for when the next default moment reaches the standard grade or fault occurs, is initiatively reached the standard grade); And according to fault detector actual conditions and correlation technique requirement, inventor has built a set of complete, efficient fault detector distant communication terminal mode of operation of reaching the standard grade.During with reality compared with line model, apply the mode of operation of reaching the standard grade of the present invention simple and practical, especially for the unsettled situation of fault detector communication terminal way to take power (as solar energy power taking or CT power taking), do not changing under the condition of existing way to take power, can realize the work of fault detector distant communication terminal long time stability.
Brief description of the drawings
Fig. 1 is fault detector distant communication terminal and master station communication fundamental diagram.
Embodiment
Fig. 1 has shown fault detector distant communication terminal and master station communication operation principle, present embodiment is based in the constant situation of the following distribution line failure indicating device of 35kV distant communication terminal way to take power, the working method that changes distant communication terminal wireless communication module by application the present invention, reaches the object that reduces terminal power consumption.Specific as follows:
The Main Processor Unit of fault detector distant communication terminal does not change by intercommunication cycle and the mechanism of wireless radio frequency modules and fault sensor.In the modules of fault detector distant communication terminal, find that by test the power consumption of the wireless communication module of communicating by letter with main station system accounts for a big chunk of whole communication terminal power consumption (accounting for more than 40%).And the DL/T634.5101-2002 agreement of communicating by letter with main station system for fault detector distant communication terminal is supported balanced type, (line failure or have burst information etc.) initiatively and master station communication in specific situation to support fault detector communication terminal.Accordingly, inventor has designed the communication mode that a kind of and existing fault detector distant communication terminal is different with main website real time communication pattern, be non-realtime traffic pattern: <a> at actual track fault-free and communication equipment during without burst amount information, fault detector distant communication terminal with the predefined moment of main station system, initiatively reach the standard grade, communicate with main website, after exchange line and device-dependent message, communication module is in resting state, wait for when the next default moment reaches the standard grade or fault occurs, initiatively reach the standard grade; <b> is in the time that actual track and communication equipment have fault or burst amount information to produce, fault detector distant communication terminal is initiatively reached the standard grade, communicate with main website, after the complete fault of active upload or burst amount information, communication module is in resting state, wait for when the next default moment reaches the standard grade or fault occurs, initiatively reach the standard grade.
Meanwhile, inventor has designed the changing method of a kind of fault detector distant communication terminal and master station communication mode of operation, in existing fault detector distant communication terminal power-supply system, adds a measuring unit, for measuring the voltage U at battery/electric capacity two ends; By measuring the voltage at battery/electric capacity two ends in fault detector remote transmission terminal DC power system, voltage is compared with setting limit value, switch between real time communication pattern and non-realtime traffic pattern according to comparative result.Wherein, relatively carry out according to following decision logic:
<a> is switched to the decision logic of non real-time line model by real-time online pattern: when the voltage U at fault detector distant communication terminal DC power supply two ends in official hour T, continue lower than set in advance threshold values U0 time, fault detector distant communication terminal switches to non real-time upper ray mode by real time communication pattern;
<b> is switched to the decision logic of real-time online pattern by non real-time line model: in the time that the voltage U at fault detector distant communication terminal DC power supply two ends continues to be more than or equal to the threshold values U0 setting in advance in official hour T, fault detector distant communication terminal switches in real time upper ray mode by non-realtime traffic pattern.
In the present embodiment, T gets 5-10s, U0=0.95U, the rated voltage that U is battery/electric capacity.Find by test, in the time that distribution line breaks down, in non-realtime traffic mode of operation, send fault message than sending slow 45s of fault message time left and right on adopting real time communication mode of operation, this complete acceptable in distribution line failure is processed time.Use the mode of operation of this communication, can be the in the situation that of power taking conditional instability, greatly extend the time of communication, make the steady operation of fault detector energy longer time, give full play to its effect.
Claims (3)
1. the changing method of a fault detector distant communication terminal and master station communication mode of operation, it is characterized in that: by measuring the voltage at battery/electric capacity two ends in fault detector remote transmission terminal DC power system, voltage is compared with setting limit value, switch between real time communication pattern and non-realtime traffic pattern according to comparative result.
2. according to the changing method of the fault detector distant communication terminal shown in claim 1 and master station communication mode of operation, it is characterized in that described comparison carries out according to following decision logic:
<a> is switched to the decision logic of non real-time line model by real-time online pattern: when the voltage at fault detector distant communication terminal DC power supply two ends in official hour, continue lower than set in advance threshold values time, fault detector distant communication terminal switches to non real-time upper ray mode by real time communication pattern;
<b> is switched to the decision logic of real-time online pattern by non real-time line model: in the time that the voltage at fault detector distant communication terminal DC power supply two ends continues to be more than or equal to the threshold values setting in advance in official hour, fault detector distant communication terminal switches in real time upper ray mode by non-realtime traffic pattern.
3. according to the changing method of the fault detector distant communication terminal shown in claim 2 and master station communication mode of operation, it is characterized in that described non-realtime traffic pattern is:
<a> is at actual track fault-free and communication equipment during without burst amount information, fault detector distant communication terminal with the predefined moment of main station system, initiatively reach the standard grade, communicate with main website, after exchange line and device-dependent message, communication module in resting state, is waited for when the next default moment reaches the standard grade or fault occurs, is initiatively reached the standard grade;
<b> is in the time that actual track and communication equipment have fault or burst amount information to produce, fault detector distant communication terminal is initiatively reached the standard grade, communicate with main website, after the complete fault of active upload or burst amount information, communication module is in resting state, wait for when the next default moment reaches the standard grade or fault occurs, initiatively reach the standard grade.
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Cited By (3)
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| CN105450452A (en) * | 2015-12-02 | 2016-03-30 | 光一科技股份有限公司 | Remote upgrading method for improving safety and stability of fault indicator |
| CN106249107A (en) * | 2016-08-05 | 2016-12-21 | 武汉中原电子信息有限公司 | A kind of fault detector energy management method |
| CN106291232A (en) * | 2016-07-22 | 2017-01-04 | 国电南瑞科技股份有限公司 | A kind of low-power consumption overhead line fault indicator and control method |
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| CN1658578A (en) * | 2005-04-05 | 2005-08-24 | 北京四方继保自动化股份有限公司 | Non-break switchover method of double-network communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105450452A (en) * | 2015-12-02 | 2016-03-30 | 光一科技股份有限公司 | Remote upgrading method for improving safety and stability of fault indicator |
| CN105450452B (en) * | 2015-12-02 | 2017-05-24 | 光一科技股份有限公司 | Remote upgrading method for improving safety and stability of fault indicator |
| CN106291232A (en) * | 2016-07-22 | 2017-01-04 | 国电南瑞科技股份有限公司 | A kind of low-power consumption overhead line fault indicator and control method |
| CN106249107A (en) * | 2016-08-05 | 2016-12-21 | 武汉中原电子信息有限公司 | A kind of fault detector energy management method |
| CN106249107B (en) * | 2016-08-05 | 2018-10-12 | 武汉中原电子信息有限公司 | A kind of fault detector energy management method |
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