CN111308386A - Electric leakage detection system and detection method - Google Patents
Electric leakage detection system and detection method Download PDFInfo
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- CN111308386A CN111308386A CN201911277789.4A CN201911277789A CN111308386A CN 111308386 A CN111308386 A CN 111308386A CN 201911277789 A CN201911277789 A CN 201911277789A CN 111308386 A CN111308386 A CN 111308386A
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Abstract
The invention relates to the technical field of electric leakage detection, and provides an electric leakage detection system and a detection method, wherein the electric leakage detection system comprises: the electric leakage detection module comprises a plurality of data acquisition units arranged at intervals along the line to be overhauled; the storage module stores abnormal information data when the circuit leaks electricity, normal information data when the circuit does not leak electricity and position information of the plurality of data acquisition units; the data analysis module is respectively connected with the data acquisition units and the storage module, and is used for comparing and analyzing the real-time data acquired by the data acquisition units with the abnormal information data and the normal information data so as to judge whether the line leaks electricity or not, and when the line leaks electricity, the data analysis module judges the position of the electricity leakage according to the position information of the data acquisition units; and the monitoring module is connected with the data analysis module so as to display the electric leakage position and store the electric leakage information judged by the data analysis module.
Description
Technical Field
The invention relates to the technical field of electric detection, in particular to an electric leakage detection system and a detection method.
Background
In a low-voltage 380/220V three-phase four-system power supply system, each branch line and the residents are generally provided with leakage protection switches. The leakage protection switch frequently operates to trip because the line is aged for a long time or is pulled randomly by a person, and the fault point of the leakage current cannot be timely and accurately eliminated, so that the household power consumption is directly influenced. For this reason, many users remove the earth leakage protection switch and change it to a disconnecting switch or an air switch. Therefore, when the leakage current reaches a certain value, the action of the previous-stage leakage protection switch is tripped, even the secondary main switch of the transformer is tripped, so that a large-area household is powered off, and a lot of trouble is brought to finding out a fault point afterwards.
Aiming at the problem, in order to strictly distinguish fault ranges and prevent cascading or override tripping, analysis and proposing are carried out according to years of operation experience and various phenomena occurring in operation: the low-voltage circuit should implement the cascaded earth leakage protection measure, implement the leakage current scheme of on-line detection simultaneously to in time accurate judgement fault range, guarantee the safe power supply.
The existing leakage detection method mainly adopts a handheld leakage detector for field detection, and each part of a line needs to be detected by the handheld leakage detector on the field, so that a possible leakage line point is found, and certain measures are taken. Such a detection method has the following drawbacks:
(1) the field detection of workers is needed, the field workers cannot judge which stage the fault occurs after the fault occurs (after a protection switch), and the stage and which point the fault occurs can be gradually detected only by electrifying stage by stage, so that the workload is huge, and the power utilization risk of the original fault recurrence exists.
(2) And in case of on-site conditions, the wiring is complicated, and the work safety risk of workers is increased.
(3) If a plurality of leakage positions exist and leakage faults occur in different time periods and different electrical appliances during working, fault judgment needs to be repeatedly detected, and sometimes a plurality of people may be required to move.
(4) The fault phenomenon, the place and the time can only be manually recorded, errors are easy to cause, and the corresponding fault place and fault parameters cannot be automatically recorded.
(5) The real leakage current value cannot be captured when a fault occurs, and a basis cannot be provided for fault prevention.
(6) Data measured by the handheld leakage inspection tester cannot be aggregated into big data, information correlation is not strong, and measurement results cannot be utilized to the maximum extent for cloud computing analysis.
Disclosure of Invention
Aiming at the problems of low maintenance efficiency, inconvenient operation and long troubleshooting time in the prior art, the invention provides the electric leakage detection system and the detection method, which can greatly improve the maintenance efficiency of maintainers, reduce the labor intensity, shorten the electric leakage detection troubleshooting time and reduce the industrial and agricultural production danger caused by electric leakage.
The invention is realized by the following technical scheme:
an electrical leakage detection system, comprising:
the electric leakage detection module comprises a plurality of data acquisition units arranged at intervals along the line to be overhauled;
the storage module stores abnormal information data when the circuit leaks electricity, normal information data when the circuit does not leak electricity and position information of the data acquisition units;
the data analysis module is respectively connected with the plurality of data acquisition units and the storage module, and the data analysis module performs comparative analysis on the real-time data acquired by the plurality of data acquisition units, the abnormal information data and the normal information data so as to judge whether the line leaks electricity; when the line electric leakage is judged, the data analysis module judges the electric leakage position according to the position information of the plurality of data acquisition units;
and the monitoring module is connected with the data analysis module so as to display the electric leakage position and store the electric leakage information judged by the data analysis module.
Preferably, the intelligent power supply further comprises an alarm which is electrically connected with the data analysis module, and when the line is judged to be in electric leakage, the alarm sends out an electric leakage alarm signal.
Preferably, the data acquisition unit comprises a voltage collector for measuring the line voltage and a current collector for measuring the line current;
the output end of the voltage collector and the output end of the current collector are respectively connected with a signal amplifier, the output end of the signal amplifier is connected with a filter, and the filter is connected with the data analysis module.
Further, a plurality of portable mobile terminals are also included;
the portable mobile terminals are in one-to-one correspondence with the data acquisition units, the data analysis module stores corresponding information between the portable mobile terminals and the data acquisition units, and the data analysis module sends the judged electric leakage information and the position information of the data acquisition units corresponding to the electric leakage information to the corresponding portable mobile terminals.
Still further, the storage module also stores corresponding information between the portable mobile terminal and the data acquisition unit;
and the data analysis module sends the judged electric leakage information and the position information of the data acquisition unit corresponding to the electric leakage information to the corresponding portable mobile terminal according to the corresponding information of the portable mobile terminal and the data acquisition unit stored in the memory.
Further, the leakage detecting module further includes:
and the checking and counting module is used for checking the real-time data acquired by the data acquisition unit and calling the historical leakage information stored in the monitoring module.
A method of electrical leakage detection, comprising:
arranging a plurality of data acquisition units on a line to be overhauled at intervals;
storing abnormal information data when the circuit leaks electricity, normal information data when the circuit does not leak electricity and position information of the data acquisition units;
comparing and analyzing the real-time data acquired by the data acquisition units with the abnormal information data and the normal information data to judge whether the line leaks electricity, and judging the electricity leakage position according to the position information of the data acquisition units when the line leaks electricity;
and transmitting the analysis result to a monitoring module so as to display the analysis result of the data analysis module.
Preferably, when the line is determined to be electrically leaky, an electrical leakage alarm signal is issued.
Preferably, the determined leakage information and the position information of the data acquisition unit corresponding to the leakage information are sent to the corresponding portable mobile terminal.
Further, the step of transmitting the analysis result to the monitoring module to display the analysis result of the data analysis module further includes:
and checking the real-time data acquired by the data acquisition unit, and calling the judged historical electric leakage information.
Compared with the prior art, the invention has the following beneficial technical effects:
the leakage detection system and the detection method can determine the leakage points in real time through the modern information network and the computer technology, and have the effect which cannot be achieved by the prior simple field detection which needs manual inspection. The invention greatly improves the personnel efficiency, reduces the labor intensity, shortens the electric leakage detection and investigation time and reduces the industrial and agricultural production danger caused by electric leakage.
Drawings
Fig. 1 is a schematic structural diagram of a leakage detection system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a leakage detection system according to another embodiment of the present invention;
fig. 3 is a flowchart of a leakage detection method according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail and completely with reference to the following embodiments and accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the leakage detecting system of the present invention includes: the leakage detection module comprises a plurality of data acquisition units which are arranged at intervals along a line to be overhauled; the storage module stores abnormal information data when the circuit leaks electricity, normal information data when the circuit does not leak electricity and position information of the data acquisition units; the data analysis module is respectively connected with the data acquisition units and the storage module, and is used for comparing and analyzing the real-time data acquired by the data acquisition units with the abnormal information data and the normal information data so as to judge whether the line leaks electricity or not, and when the line leaks electricity, the data analysis module judges the position of the electricity leakage according to the position information of the data acquisition units acquiring the abnormal information data; and the monitoring module is connected with the data analysis module so as to display the electric leakage position and store the electric leakage information judged by the data analysis module.
The data analysis module is used for comparing the data acquired by the data acquisition units with abnormal information data when the circuit leaks electricity and normal information data when the circuit does not leak electricity and judging whether the circuit leaks electricity or not, when the electricity leakage is detected, the data analysis module judges the position of the electricity leakage according to the position information of the data acquisition units, and the monitoring module displays the position of the electricity leakage according to the received judged electricity leakage information, so that the position of the electricity leakage can be quickly found out. The line position monitored by each data acquisition unit is stored in the storage unit in advance, and when the detected data is abnormal, the position of the line position where electric leakage occurs can be directly judged and eliminated, so that repeated detection of faults is avoided, and the efficiency is improved.
In a preferred embodiment of the present invention, as shown in fig. 2, the leakage detecting system of the present invention further includes: the alarm is electrically connected with the data analysis module, when the electric leakage of the circuit is judged, the alarm sends out an electric leakage alarm signal, and an operator can quickly find the phenomenon of electric leakage according to the heard electric leakage alarm signal and correspondingly carry out certain measures, so that the industrial and agricultural production danger caused by the electric leakage is reduced.
In one embodiment, the data acquisition unit comprises: the voltage collector is used for measuring line voltage, the current collector is used for measuring line current, the output end of the voltage collector and the output end of the current collector are respectively connected with the signal amplifier, the output end of the signal amplifier is connected with the filter, and the filter is connected with the data analysis module. Specifically, the voltage and the current of the circuit are respectively acquired in real time through a voltage acquisition unit and a current acquisition unit, and voltage abnormal information data and current abnormal information data when the circuit leaks electricity, and voltage normal information data and current normal information data when the circuit does not leak electricity are correspondingly stored in a storage module. The data analysis module compares the voltage abnormal information data and the current abnormal information data with the voltage normal information data and the current normal information data when the circuit is not leaked according to the collected voltage data and current data, so as to judge whether the circuit leaks electricity, outputs corresponding leakage information (namely, leakage occurs) when the circuit leaks electricity, and can accurately judge leakage position information according to the position information of the data collection unit corresponding to the leakage information.
In a specific embodiment, the electric leakage detection system of the present invention further includes a plurality of portable mobile terminals, wherein the plurality of portable mobile terminals are in one-to-one correspondence with the plurality of data acquisition units, the data analysis module stores correspondence information between the portable mobile terminals and the data acquisition units, and the data analysis module sends the determined electric leakage information and position information of the data acquisition units corresponding to the electric leakage information to the corresponding portable mobile terminals.
Specifically, a plurality of detection operators are provided in the leakage detection unit, each detection operator has one or more independent portable mobile terminals, the number of the portable mobile terminals is the same as that of the data acquisition units and corresponds to one of the data acquisition units, all data acquired by the data acquisition units are transmitted to the data analysis module, the data analysis module compares the acquired data with abnormal information data during line leakage and normal information data during line leakage and judges whether the line has leakage, when the leakage is detected, the data analysis module sends the judged leakage information and the position information of the data acquisition unit corresponding to the leakage information to the corresponding portable mobile terminals according to the corresponding information of the portable mobile terminals and the data acquisition units, and the operators can quickly judge the leakage position of the line according to the leakage position information received by the corresponding portable mobile terminals, therefore, the efficiency of line leakage detection is realized, each operation detection personnel is responsible for the data acquisition module in a certain area, when the line in the area in which the operation detection personnel is responsible is not detected to generate leakage information data, the operation detection personnel cannot receive the leakage information, namely, only when the line in the area in which the operation detection personnel is responsible is detected to generate the leakage information data, the portable mobile terminal carried by the operation detection personnel receives corresponding fault information, and the detection efficiency is further improved.
Furthermore, the storage module also stores corresponding information between the portable mobile terminal and the data acquisition unit, and the data analysis module sends the judged electric leakage information and the position information of the data acquisition unit corresponding to the electric leakage information to the corresponding portable mobile terminal according to the corresponding information between the portable mobile terminal and the data acquisition unit stored in the storage. The data analysis module sends the judged leakage information to the corresponding portable mobile terminal according to the corresponding relation between the portable mobile terminal and the data acquisition unit stored in the memory, so that the accuracy of leakage detection is improved.
Further, in the electric leakage detection system of the present invention, the electric leakage detection module further includes a checking and counting module, wherein the checking and counting module is configured to check the real-time data collected by the data collection unit, and call the historical electric leakage information stored in the monitoring module. When the operator is in the central control room, even if the portable mobile terminal is not carried or fails, whether electric leakage occurs or not can be judged by observing the real-time data acquired by the data acquisition unit displayed by the statistical module. In addition, an operator can judge the place where electric leakage frequently occurs by using historical electric leakage information stored in the monitoring module, and pay attention to the place, so that a corresponding electric leakage reason is found, and the probability of occurrence of subsequent electric leakage is reduced.
In addition, the invention also provides a leakage detection method, wherein the leakage detection method comprises the following steps:
s1) arranging a plurality of data acquisition units on a line to be overhauled at intervals;
s2) abnormal information data when the circuit leaks electricity, normal information data when the circuit does not leak electricity and position information of a plurality of data acquisition units are stored;
s3) comparing and analyzing the real-time data acquired by the data acquisition units with the abnormal information data and the normal information data to judge whether the circuit leaks electricity, and judging the position of the electricity leakage according to the position information of the data acquisition units when the circuit leaks electricity;
s4) transmitting the analysis result to the monitoring module to display the analysis result of the data analysis module.
Specifically, a plurality of data acquisition units are dispersedly arranged on a circuit to be detected, detection data are transmitted to a data analysis module, the data acquired by the data acquisition units are compared with abnormal information data when the circuit leaks electricity and normal information data when the circuit does not leak electricity through the data analysis module, whether the circuit leaks electricity or not is judged, when the circuit leaks electricity, the data analysis module judges the position of the electricity leakage according to the position information of the data acquisition units, and the monitoring module displays the position of the electricity leakage according to the received judged electricity leakage information, so that the position of the electricity leakage is quickly found out.
Further, in the leakage detecting method of the present invention, when the line leakage is determined, a leakage alarm signal is issued. The operating personnel can rapidly find the phenomenon of electric leakage according to the electric leakage alarm signal heard and accordingly carry out corresponding measures, and therefore industrial and agricultural production danger caused by electric leakage is reduced.
Further, in the electric leakage detection method of the present invention, the determined electric leakage information and the position information of the data acquisition unit corresponding to the electric leakage information are sent to the corresponding portable mobile terminal. Specifically, a plurality of detection operators are provided in the leakage detection unit, each detection operator has one or more independent portable mobile terminals, the number of the portable mobile terminals is the same as that of the data acquisition units and corresponds to one of the data acquisition units, all data acquired by the data acquisition units are transmitted to the data analysis module, the data analysis module compares the acquired data with abnormal information data during line leakage and normal information data during line leakage and judges whether the line has leakage, when the leakage is detected, the data analysis module sends the judged leakage information and the position information of the data acquisition unit corresponding to the leakage information to the corresponding portable mobile terminals according to the corresponding information of the portable mobile terminals and the data acquisition units, and the operators can quickly judge the leakage position of the line according to the leakage position information received by the corresponding portable mobile terminals, therefore, the efficiency of line leakage detection is realized, each operation detection personnel is responsible for the data acquisition module in a certain area, when the line in the area in which the operation detection personnel is responsible is not detected to generate leakage information data, the operation detection personnel cannot receive the leakage information, namely, only when the line in the area in which the operation detection personnel is responsible is detected to generate the leakage information data, the portable mobile terminal carried by the operation detection personnel receives corresponding fault information, and the detection efficiency is further improved.
In a specific embodiment, in step S4, the method further includes: and checking the real-time data acquired by the data acquisition unit, and calling the judged historical electric leakage information. When the operator is in the central control room, even if the portable mobile terminal is not carried or fails, whether electric leakage occurs or not can be judged by observing the real-time data acquired by the data acquisition unit displayed by the statistical module. In addition, an operator can judge the place where electric leakage frequently occurs by using historical electric leakage information stored in the monitoring module, and pay attention to the place, so that a corresponding electric leakage reason is found, and the probability of occurrence of subsequent electric leakage is reduced.
The leakage detection system and the detection method can determine leakage points in real time through a modern information network and a computer technology, have the effect which cannot be achieved by the conventional simple field detection which needs manual inspection, and have the effects of distributing investment, flexibly expanding system capacity and improving positioning accuracy because more than one data acquisition unit is arranged and can be flexibly set according to the requirements of users. The invention greatly improves the personnel efficiency, reduces the labor intensity, shortens the electric leakage detection and investigation time and reduces the industrial and agricultural production danger caused by electric leakage.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. An electrical leakage detection system, comprising:
the electric leakage detection module comprises a plurality of data acquisition units arranged at intervals along the line to be overhauled;
the storage module stores abnormal information data when the circuit leaks electricity, normal information data when the circuit does not leak electricity and position information of the data acquisition units;
the data analysis module is respectively connected with the plurality of data acquisition units and the storage module, and the data analysis module performs comparative analysis on the real-time data acquired by the plurality of data acquisition units, the abnormal information data and the normal information data so as to judge whether the line leaks electricity; when the line electric leakage is judged, the data analysis module judges the electric leakage position according to the position information of the plurality of data acquisition units;
and the monitoring module is connected with the data analysis module so as to display the electric leakage position and store the electric leakage information judged by the data analysis module.
2. An electrical leakage detection system according to claim 1, further comprising:
and the alarm is electrically connected with the data analysis module, and when the electric leakage of the circuit is judged, the alarm sends out an electric leakage alarm signal.
3. The electrical leakage detection system of claim 1, wherein the data acquisition unit comprises a voltage collector for measuring line voltage and a current collector for measuring line current;
the output end of the voltage collector and the output end of the current collector are respectively connected with a signal amplifier, the output end of the signal amplifier is connected with a filter, and the filter is connected with the data analysis module.
4. A leakage detection system according to any of claims 1 to 3, further comprising a plurality of portable mobile terminals;
the portable mobile terminals are in one-to-one correspondence with the data acquisition units, the data analysis module stores corresponding information between the portable mobile terminals and the data acquisition units, and the data analysis module sends the judged electric leakage information and the position information of the data acquisition units corresponding to the electric leakage information to the corresponding portable mobile terminals.
5. The electrical leakage detection system of claim 4, wherein the storage module further stores correspondence information between the portable mobile terminal and the data acquisition unit;
and the data analysis module sends the judged electric leakage information and the position information of the data acquisition unit corresponding to the electric leakage information to the corresponding portable mobile terminal according to the corresponding information of the portable mobile terminal and the data acquisition unit stored in the memory.
6. The electrical leakage detection system of claim 4, wherein the electrical leakage detection module further comprises:
and the checking and counting module is used for checking the real-time data acquired by the data acquisition unit and calling the historical leakage information stored in the monitoring module.
7. An electrical leakage detection method, comprising:
arranging a plurality of data acquisition units on a line to be overhauled at intervals;
storing abnormal information data when the circuit leaks electricity, normal information data when the circuit does not leak electricity and position information of the data acquisition units;
comparing and analyzing the real-time data acquired by the data acquisition units with the abnormal information data and the normal information data to judge whether the line leaks electricity, and judging the electricity leakage position according to the position information of the data acquisition units when the line leaks electricity;
and transmitting the analysis result to a monitoring module so as to display the analysis result of the data analysis module.
8. A leakage detecting method according to claim 7, wherein a leakage alarm signal is issued when the line leakage is determined.
9. The electrical leakage detection method according to claim 7, wherein the determined electrical leakage information and the position information of the data acquisition unit corresponding to the electrical leakage information are transmitted to the corresponding portable mobile terminal.
10. The electrical leakage detection method according to any one of claims 7 to 9, wherein the step of transmitting the analysis result to a monitoring module to display the analysis result of the data analysis module further comprises:
and checking the real-time data acquired by the data acquisition unit, and calling the judged historical electric leakage information.
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Application publication date: 20200619 |
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