CN103809074A - Power cable safety identification device and method - Google Patents
Power cable safety identification device and method Download PDFInfo
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Abstract
The invention discloses a power cable safety identification device and method. The device comprises an alternating current power module, an alternating current detecting module, a switch module and a current induction module. The alternating current power module is larger than 220 V. The device further comprises a first current voltage switching module, a first AD module, a first controller module, a first data storage module, a first wireless communication module, a first display module, a first infrared induction module and a first direct current power module. The device further comprises a current induction module, a second current voltage switching module, a second AD module, a second controller module, a second data storage module, a second wireless communication module, a second display module, a second infrared induction module and a second direct current power module.
Description
Technical field
The present invention relates to a kind of power cable safety distinguishing apparatus and recognition methods.
Background technology
Power cable (power cable), for transmitting and distribute the cable of electric energy.Be usually used in Urban Underground electrical network, power house lead line, industrial and mining enterprises in-line power and cross river, the submarine transmission line in sea excessively.In power circuit, the shared proportion of power cable increases just gradually.Power cable is in order to transmission with distribute the cable product of high-power power, comprising the power cable of 1-500KV and above various electric pressure, various insulation in the basic routing line of electric system.
Laying of power cable do not need shaft tower, not climate environmental limit, have little to surrounding environment influence, power supply is reliable, the advantages such as security height are widely used in distribution electric system.But be subject to the limited road surface resource impact in city, often on same path, arrange many even tens power cables, and the form that power cable adopts poling or raceway groove to lay conventionally, and raceway groove is also usually because need to making of beautifying of municipal administration is closed or semi-enclosed.Once the power cable method of operation changes, as reconfiguration of power cable open loop or power cable etc., in time the label of the power cable running mark in sewer pipe is changed as not having, bring very large hidden danger can to later construction.
Due to the electric substation in power cable both sides or pole line terminal, on its power cable, all hold correct label or mark, therefore the method for tional identification power cable is exactly from one end of electric substation or overhead transmission line, the way detecting by an unaided eye on the way along power cable is carried out Tracking Recognition, when power cable in sewer pipe more, path is long and when complicated again, just necessary significant care, once power cable ditch is closed or is semiclosed, only have local unlatching, workmen just must creep into power cable ditch from the one end of opening, bending touching power cable moves ahead, know the place that needs construction working.Besides, if the sealing of power cable raceway groove is longer, workmen is just very arduous, its labour intensity is very large, and likely touches other running power cables, so abnormally dangerous.In the time that power cable sealing raceway groove is long, traditional recognition methods is obviously infeasible in fact.Traditional power cable recognition methods thinks that factor is too many, even if the raceway groove of sealing is not very long, but has a little carelessness, will get wrong, time-consuming effort again, and inefficiency, recognition correct rate is low, dangerous.
For above problem, invention and created name is: the recognition methods of power cable, the patent No. is: 2004100145331 patent of invention has proposed a kind of new solution.Recognition principle schematic diagram as shown in Figure 1.By low-voltage alternating current power supply 1 that is external one end of power cable to be identified 4, switch 3 and reometer 2, low-voltage alternating current power supply 1 ground connection, its low-voltage alternating current power supply 1 is 36V and following safe voltage, by the core ground connection of power cable to be identified 4 other ends, the induction installation of current detecting instrument 5 is sleeved on power cable, Closing Switch 3, if when current detecting instrument 5 equates with the size of current of reometer 2, can be judged as same power cable.
The method possible in theory, but basic None-identified in a lot of situations in practice, found.Main cause: the real current value of above recognition methods in the time that power cable line is long is also with regard to a few to tens of milliamperes, but in same raceway groove, often there are tens power cables, and in these power cables, usually moving large electric current, the lines of magnetic induction of running power cable also can be in the induction installation of current detecting instrument 5 generation current, and the electric current producing is much larger than the current value in power cable to be identified.
Summary of the invention
The object of the present invention is to provide a kind of power cable safety distinguishing apparatus and recognition methods, adopt the recognition methods of this recognition device safe and reliable, time saving and energy saving, accuracy is very high.
In order to realize above object, the technical scheme that invention adopts is: a kind of power cable safety distinguishing apparatus, comprises AC power supply module, alternating current detection module, switch module and electric current induction module;
Described AC power supply module is greater than 220V;
One end ground connection of described AC power supply module, the other end is electrically connected the input end of described current detection module; The input end of the switch module described in the output terminal electrical connection of described current detection module, the output terminal of described switch module is used for being electrically connected power cable to be identified, and the other end of power cable to be identified needs ground connection;
Also comprise the first current/voltage modular converter, an AD module, the first controller module, the first data memory module, the first wireless communication module, the first display module, the first infrared induction module and the first DC power supplier;
The first described DC power supplier is the first current/voltage modular converter, an AD module, the first controller module, the first data memory module, the first wireless communication module, the first display module, the first infrared induction module for power supply;
The detection data of described alternating current detection module are input to the first controller module by the first current/voltage modular converter and an AD module;
The control end of the switch module described in the first described controller module electrical connection;
Described the first data memory module, the first wireless communication module, the first display module, the first infrared induction module are electrically connected with the first controller module;
The first described infrared induction module has nobody and detection signal is input to the first controller module near the surrounding of one end of switch module for detection of power cable to be identified;
Also comprise electric current induction module, the second current/voltage modular converter, the 2nd AD module, second controller module, the second data memory module, the second wireless communication module, the second display module, the second infrared induction module and the second DC power supplier;
The second described DC power supplier is described the second current/voltage modular converter, the 2nd AD module, second controller module, the second data memory module, the second wireless communication module, the second display module, the second infrared induction module for power supply;
The induced signal of described electric current induction module is input to second controller module by the second current/voltage modular converter, the 2nd AD module;
Described the second data memory module, the second wireless communication module, the second display module, the second infrared induction module are electrically connected with second controller module;
The second described infrared induction module has nobody and detection signal is input to second controller module for detection of the surrounding of the power cable other end to be identified;
The second wireless communication module under described first controller module control the first wireless communication module and second controller module controls carries out exchanges data.
Be more preferably technical scheme, described switch module adopts bidirectional triode thyristor to realize.
Be more preferably technical scheme, the conducting turn-off time of described bidirectional triode thyristor is less than 50ms.
Be more preferably technical scheme, described the first infrared induction module, the second infrared induction module distance of reaction are greater than 1.5 meters.
Be more preferably technical scheme, described the first controller module and second controller module all adopt MSP430 single-chip microcomputer.
Be more preferably technical scheme, described AC power supply module voltage is at 220V ~ 380V.
A kind of power cable safety recognizing method, comprises AC power supply module, alternating current detection module, switch module and electric current induction module; Described AC power supply module is greater than 220V;
Also comprise the first current/voltage modular converter, an AD module, the first controller module, the first data memory module, the first wireless communication module, the first display module, the first infrared induction module and the first DC power supplier;
Also comprise electric current induction module, the second current/voltage modular converter, the 2nd AD module, second controller module, the second data memory module, the second wireless communication module, the second display module, the second infrared induction module and the second DC power supplier;
The first step:
By one end ground connection of described AC power supply module, the other end is electrically connected the input end of described current detection module; The input end of the switch module described in the output terminal electrical connection of described current detection module, the output terminal of described switch module is electrically connected power cable to be identified, the other end ground connection of power cable to be identified;
The detection data of described alternating current detection module are input to the first controller module by the first current/voltage modular converter and an AD module;
The control end of the switch module described in the first described controller module electrical connection;
Described the first data memory module, the first wireless communication module, the first display module, the first infrared induction module are electrically connected with the first controller module;
The induced signal of described electric current induction module is input to second controller module by the second current/voltage modular converter, the 2nd AD module;
Described the second data memory module, the second wireless communication module, the second display module, the second infrared induction module are electrically connected with second controller module;
Wherein, the first infrared induction module is arranged near power cable to be identified one end near switch module, and the second infrared induction module is arranged near the other end of power cable to be identified; Power cable to be identified should be through the induction installation of electric current induction module;
Second step: when described switch module does not have in the situation of conducting, second controller module stores the sensed data of described electric current induction module into second data memory module;
The 3rd step: in the time that the people at power cable to be identified two ends is not in the induction range of the first infrared induction module and the second infrared induction module, the first controller module allows described switch module conducting X millisecond by the control end of described switch module, then stopcock module at once; X≤50;
The 4th step: the sensed data of the electric current induction module described in the sensed data of electric current induction module described in the situation of switch module conducting and switch module are not in the situation of conducting is done difference computing by second controller module, be designated as M, and compare with the detection data N of described alternating current detection module, if M=N, illustrate that power cable to be identified is same power cable, otherwise illustrate that power cable to be identified is not same power cable;
The 5th step: the first display module and the second display module will detect data and computing judgment result displays out.
In power cable safety recognizing method, described switch module adopts bidirectional triode thyristor to realize.
In power cable safety recognizing method, described the first infrared induction module, the second infrared induction module distance of reaction are greater than 1.5 meters.
In power cable safety recognizing method, described the first controller module and second controller module all adopt MSP430 single-chip microcomputer.
In power cable safety recognizing method, described AC power supply module voltage is at 220V ~ 380V.
Compared with prior art, the invention has the advantages that: the first, the invention solves the interference of other operation power cables that background technology part mentions; The second, the present invention, due to the higher safety of considering of AC power supply module voltage adopting, so the ON time of switch module is less than 50ms, is also comparatively safe even if this extremely of short duration ON time is got an electric shock next to human body; The 3rd, for the purpose of safety more, the two ends of power cable to be identified are all provided with respectively the first infrared induction module and the second infrared induction module, when people is near power cable to be identified time, the first controller module is to allow switch module conducting, so very safe; The 4th, so can to know power cable to be identified be same power cable due to the display module that has adopted the staff at wireless communication technology power cable to be identified two ends only need to have a look two ends.In a word, recognition methods of the present invention is very safe, and accuracy rate is very high, and work efficiency improves greatly.
Accompanying drawing explanation
Fig. 1 is prior art power cable recognition methods schematic diagram.
Fig. 2 is the schematic diagram of power cable safety distinguishing apparatus of the present invention.
Embodiment
Below in conjunction with accompanying drawing, invention is described in further detail.
A kind of power cable safety distinguishing apparatus, comprises AC power supply module, alternating current detection module, switch module and electric current induction module; Described AC power supply module equals 220V;
One end ground connection of described AC power supply module, the other end is electrically connected the input end of described current detection module; The input end of the switch module described in the output terminal electrical connection of described current detection module, the output terminal of described switch module is used for being electrically connected power cable to be identified, and the other end of power cable to be identified needs ground connection;
Also comprise the first current/voltage modular converter, an AD module, the first controller module, the first data memory module, the first wireless communication module, the first display module, the first infrared induction module and the first DC power supplier; The first described DC power supplier is the first current/voltage modular converter, an AD module, the first controller module, the first data memory module, the first wireless communication module, the first display module, the first infrared induction module for power supply; The detection data of described alternating current detection module are input to the first controller module by the first current/voltage modular converter and an AD module; The control end of the switch module described in the first described controller module electrical connection; Described the first data memory module, the first wireless communication module, the first display module, the first infrared induction module are electrically connected with the first controller module; The first described infrared induction module has nobody and detection signal is input to the first controller module near the surrounding of one end of switch module for detection of power cable to be identified;
Also comprise electric current induction module, the second current/voltage modular converter, the 2nd AD module, second controller module, the second data memory module, the second wireless communication module, the second display module, the second infrared induction module and the second DC power supplier; The second described DC power supplier is described the second current/voltage modular converter, the 2nd AD module, second controller module, the second data memory module, the second wireless communication module, the second display module, the second infrared induction module for power supply; The induced signal of described electric current induction module is input to second controller module by the second current/voltage modular converter, the 2nd AD module; Described the second data memory module, the second wireless communication module, the second display module, the second infrared induction module are electrically connected with second controller module; The second described infrared induction module has nobody and detection signal is input to second controller module for detection of the surrounding of the power cable other end to be identified; The second wireless communication module under described first controller module control the first wireless communication module and second controller module controls carries out exchanges data.
Wherein, described switch module adopts bidirectional triode thyristor BTA06-600C to realize;
Wherein, 2 meters of the first described infrared induction module, the second infrared induction module distance of reaction.
Wherein, the first described controller module and second controller module all adopt MSP430 single-chip microcomputer.
Concrete power cable safety recognizing method:
The first step:
By one end ground connection of described AC power supply module, the other end is electrically connected the input end of described current detection module; The input end of the switch module described in the output terminal electrical connection of described current detection module, the output terminal of described switch module is electrically connected power cable to be identified, the other end ground connection of power cable to be identified;
The detection data of described alternating current detection module are input to the first controller module by the first current/voltage modular converter and an AD module;
The control end of the switch module described in the first described controller module electrical connection;
Described the first data memory module, the first wireless communication module, the first display module, the first infrared induction module are electrically connected with the first controller module;
The induced signal of described electric current induction module is input to second controller module by the second current/voltage modular converter, the 2nd AD module;
Described the second data memory module, the second wireless communication module, the second display module, the second infrared induction module are electrically connected with second controller module;
Wherein, the first infrared induction module is arranged near power cable to be identified one end near switch module, and the second infrared induction module is arranged near the other end of power cable to be identified; Power cable to be identified should be through the induction installation of electric current induction module;
Second step: when described switch module does not have in the situation of conducting, second controller module stores the sensed data of described electric current induction module into second data memory module;
The 3rd step: in the time that the people at power cable to be identified two ends is not in the induction range of the first infrared induction module and the second infrared induction module, the first controller module allows 50 milliseconds of described switch module conductings by the control end of described switch module, then stopcock module at once;
The 4th step: the sensed data of the electric current induction module described in the sensed data of electric current induction module described in the situation of switch module conducting and switch module are not in the situation of conducting is done difference computing by second controller module, be designated as M, and compare with the detection data N of described alternating current detection module, if M=N, illustrate that power cable to be identified is same power cable, otherwise illustrate that power cable to be identified is not same power cable;
The 5th step: the first display module and the second display module will detect data and computing judgment result displays out.
Principle of work of the present invention: when the present invention is not conducted electricity by power cable to be identified, the sensed data of electric current induction module is done difference computing when the sensed data of electric current induction module and power cable to be identified conduction, thereby has got rid of the undesired signal of other operation power cables; Due to the higher safety of considering of AC power supply module voltage adopting, so the ON time of switch module is less than 50ms, be also comparatively safe even if this extremely of short duration ON time is got an electric shock next to human body; For the purpose of more safely, the two ends of power cable to be identified are all provided with respectively the first infrared induction module and the second infrared induction module, when people is near power cable to be identified time, the first controller module is to allow switch module conducting, so very safe; So can know power cable to be identified due to the display module that has adopted the staff at wireless communication technology power cable to be identified two ends only need to have a look two ends is same power cable.In a word, recognition methods of the present invention is very safe, and accuracy rate is very high, and work efficiency improves greatly.
Claims (10)
1. a power cable safety distinguishing apparatus, is characterized in that: comprise AC power supply module, alternating current detection module, switch module and electric current induction module;
Described AC power supply module is greater than 220V;
One end ground connection of described AC power supply module, the other end is electrically connected the input end of described current detection module; The input end of the switch module described in the output terminal electrical connection of described current detection module, the output terminal of described switch module is used for being electrically connected power cable to be identified, and the other end of power cable to be identified needs ground connection;
Also comprise the first current/voltage modular converter, an AD module, the first controller module, the first data memory module, the first wireless communication module, the first display module, the first infrared induction module and the first DC power supplier;
The first described DC power supplier is the first current/voltage modular converter, an AD module, the first controller module, the first data memory module, the first wireless communication module, the first display module, the first infrared induction module for power supply;
The detection data of described alternating current detection module are input to the first controller module by the first current/voltage modular converter and an AD module;
The control end of the switch module described in the first described controller module electrical connection;
Described the first data memory module, the first wireless communication module, the first display module, the first infrared induction module are electrically connected with the first controller module;
The first described infrared induction module has nobody and detection signal is input to the first controller module near the surrounding of one end of switch module for detection of power cable to be identified;
Also comprise electric current induction module, the second current/voltage modular converter, the 2nd AD module, second controller module, the second data memory module, the second wireless communication module, the second display module, the second infrared induction module and the second DC power supplier;
The second described DC power supplier is described the second current/voltage modular converter, the 2nd AD module, second controller module, the second data memory module, the second wireless communication module, the second display module, the second infrared induction module for power supply;
The induced signal of described electric current induction module is input to second controller module by the second current/voltage modular converter, the 2nd AD module;
Described the second data memory module, the second wireless communication module, the second display module, the second infrared induction module are electrically connected with second controller module;
The second described infrared induction module has nobody and detection signal is input to second controller module for detection of the surrounding of the power cable other end to be identified;
The second wireless communication module under described first controller module control the first wireless communication module and second controller module controls carries out exchanges data.
2. a kind of power cable safety distinguishing apparatus according to claim 1, is characterized in that: described switch module adopts bidirectional triode thyristor to realize.
3. a kind of power cable safety distinguishing apparatus according to claim 2, is characterized in that: the conducting turn-off time of described bidirectional triode thyristor is less than 50ms.
4. a kind of power cable safety distinguishing apparatus according to claim 1, is characterized in that: described the first infrared induction module, the second infrared induction module distance of reaction are greater than 1.5 meters.
5. a kind of power cable safety distinguishing apparatus according to claim 1, is characterized in that: described the first controller module and second controller module all adopt MSP430 single-chip microcomputer.
6. a kind of power cable safety distinguishing apparatus according to claim 1, is characterized in that: described AC power supply module voltage is at 220V ~ 380V.
7. a power cable safety recognizing method, is characterized in that: comprise AC power supply module, alternating current detection module, switch module and electric current induction module; Described AC power supply module is greater than 220V;
Also comprise the first current/voltage modular converter, an AD module, the first controller module, the first data memory module, the first wireless communication module, the first display module, the first infrared induction module and the first DC power supplier;
Also comprise electric current induction module, the second current/voltage modular converter, the 2nd AD module, second controller module, the second data memory module, the second wireless communication module, the second display module, the second infrared induction module and the second DC power supplier;
The first step:
By one end ground connection of described AC power supply module, the other end is electrically connected the input end of described current detection module; The input end of the switch module described in the output terminal electrical connection of described current detection module, the output terminal of described switch module is electrically connected power cable to be identified, the other end ground connection of power cable to be identified;
The detection data of described alternating current detection module are input to the first controller module by the first current/voltage modular converter and an AD module;
The control end of the switch module described in the first described controller module electrical connection;
Described the first data memory module, the first wireless communication module, the first display module, the first infrared induction module are electrically connected with the first controller module;
The induced signal of described electric current induction module is input to second controller module by the second current/voltage modular converter, the 2nd AD module;
Described the second data memory module, the second wireless communication module, the second display module, the second infrared induction module are electrically connected with second controller module;
Wherein, the first infrared induction module is arranged near power cable to be identified one end near switch module, and the second infrared induction module is arranged near the other end of power cable to be identified; Power cable to be identified should be through the induction installation of electric current induction module;
Second step: when described switch module does not have in the situation of conducting, second controller module stores the sensed data of described electric current induction module into second data memory module;
The 3rd step: in the time that the people at power cable to be identified two ends is not in the induction range of the first infrared induction module and the second infrared induction module, the first controller module allows described switch module conducting X millisecond by the control end of described switch module, then stopcock module at once; X≤50;
The 4th step: the sensed data of the electric current induction module described in the sensed data of electric current induction module described in the situation of switch module conducting and switch module are not in the situation of conducting is done difference computing by second controller module, be designated as M, and compare with the detection data N of described alternating current detection module, if M=N, illustrate that power cable to be identified is same power cable, otherwise illustrate that power cable to be identified is not same power cable;
The 5th step: the first display module and the second display module will detect data and computing judgment result displays out.
8. a kind of power cable safety recognizing method according to claim 7, is characterized in that: described switch module adopts bidirectional triode thyristor to realize.
9. a kind of power cable safety recognizing method according to claim 7, is characterized in that: described the first infrared induction module, the second infrared induction module distance of reaction are greater than 1.5 meters.
10. a kind of power cable safety recognizing method according to claim 7, is characterized in that: described the first controller module and second controller module all adopt MSP430 single-chip microcomputer; Described AC power supply module voltage is at 220V ~ 380V.
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| CN111077831A (en) * | 2019-12-30 | 2020-04-28 | 江苏三希科技股份有限公司 | Monitoring system for realizing pollution emission through electric power information |
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| CN103809074B (en) | 2016-04-27 |
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