CN104735887B - Method for automatically detecting streetlamp electric leakage - Google Patents
Method for automatically detecting streetlamp electric leakage Download PDFInfo
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- CN104735887B CN104735887B CN201510178199.1A CN201510178199A CN104735887B CN 104735887 B CN104735887 B CN 104735887B CN 201510178199 A CN201510178199 A CN 201510178199A CN 104735887 B CN104735887 B CN 104735887B
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Abstract
The invention relates to the field of intelligent streetlamps, in particular to a method for automatically detecting streetlamp electric leakage. The method includes: measuring streetlamp voltage; generating the streetlamp voltage historical record of each streetlamp node; calculating the movement average value of the streetlamp voltage of each streetlamp node; comparing the newest streetlamp voltage of each streetlamp node with the movement average value of the streetlamp voltage of the corresponding streetlamp node; comparing the value of the pre-warning counter of the streetlamp node with preset times; comparing the newest streetlamp voltage of the streetlamp node and subsequent streetlamp nodes with the movement average value of the streetlamp voltage of the corresponding streetlamp node. By the method widely applicable to streetlamp intelligent management, the electric leakage of streetlamp power supply cables can be detected timely, and the electric leakage points of the streetlamp power supply cables can be precisely positioned.
Description
Technical field
The present invention relates to intelligent road-lamp field, more particularly to a kind of street lamp electric leakage automatic testing method.
Background technology
Lamp holder, the lamp stand of existing street lamp power supply, road lamp power supply network and street lamp often because drain conditions occurs in a variety of causes, is made
Into the waste of electricity consumption, it is unfavorable for energy-conserving and environment-protective；Can cause casualties when serious.
The content of the invention
In order to find the situation that road lighting cable end is leaked electricity in time, the present invention proposes a kind of street lamp electric leakage automatic detection side
Method, comprises the steps：
S1, single-lamp controller measurement lamp voltage；
S2, Centralized Controller reads the lamp voltage that single-lamp controller measurement is obtained, and generates the street lamp electricity of each street-lamp node
Pressure historical record；
S3, calculates the mobile average of the lamp voltage of each street-lamp node；
S4, reads the lamp voltage of each street-lamp node, by the newest lamp voltage of each street-lamp node and corresponding street lamp section
The mobile average of the lamp voltage of point is compared, if the newest lamp voltage of certain street-lamp node is less than corresponding street-lamp node
The mobile average of lamp voltage and the newest lamp voltage of the street-lamp node and the lamp voltage of corresponding street-lamp node
The difference of mobile average is more than threshold value set in advance, execution step S5, otherwise using the newest lamp voltage of the street-lamp node
The newest mobile average of the lamp voltage of corresponding street-lamp node is calculated, the value of the early warning counter of the street-lamp node is reset
For 0, then execution step S4；
S5, the value of the early warning counter of the street-lamp node is compared with number of times set in advance, if the street-lamp node
The value of early warning counter be more than number of times set in advance, then show street-lamp node electric leakage, otherwise execution step S6；
S6, all street lamps in Centralized Controller scanning street lamp power supply, road lamp power supply network, if the street-lamp node and its later road
The newest lamp voltage of Lantern Festival point be below the mobile average and the street-lamp node of the lamp voltage of corresponding street-lamp node and
The newest lamp voltage of its later street-lamp node is big with the difference of the mobile average of the lamp voltage of corresponding street-lamp node
In threshold value set in advance, then the value of the early warning counter of the street-lamp node is added 1, then execution step S4, otherwise by the road
The value of the early warning counter of Lantern Festival point resets to 0, then execution step S4.
The street lamp electric leakage automatic testing method of the present invention, can in time find the drain conditions of street lamp power supply, road lamp power supply cable, may be used also
So that the leakage point of electricity of street lamp service cable is more precisely located out, the intelligent management of street lamp is widely used in.
Description of the drawings
Fig. 1 is the flow chart of the street lamp electric leakage automatic testing method of the embodiment of the present invention 1.
Fig. 2 is road lamp network schematic diagram.
Specific embodiment
Describe the street lamp electric leakage automatic testing method of the present invention in detail below in conjunction with the accompanying drawings.
Road lamp network is as shown in Figure 2.
Embodiment 1
As shown in figure 1, the street lamp electric leakage automatic testing method of the present invention, comprises the steps：
S1, single-lamp controller measurement lamp voltage；
S2, Centralized Controller reads the lamp voltage that single-lamp controller measurement is obtained, and generates the street lamp electricity of each street-lamp node
Pressure historical record；
S3, calculates the mobile average of the lamp voltage of each street-lamp node；
S4, reads the lamp voltage of each street-lamp node, by the newest lamp voltage of each street-lamp node and corresponding street lamp section
The mobile average of the lamp voltage of point is compared, if the newest lamp voltage of certain street-lamp node is less than corresponding street-lamp node
The mobile average of lamp voltage and the newest lamp voltage of the street-lamp node and the lamp voltage of corresponding street-lamp node
The difference of mobile average is more than threshold value set in advance, execution step S5, otherwise using the newest lamp voltage of the street-lamp node
The newest mobile average of the lamp voltage of corresponding street-lamp node is calculated, the value of the early warning counter of the street-lamp node is reset
For 0, then execution step S4；
S5, the value of the early warning counter of the street-lamp node is compared with number of times set in advance, if the street-lamp node
The value of early warning counter be more than number of times set in advance, then show street-lamp node electric leakage, otherwise execution step S6；
S6, all street lamps in Centralized Controller scanning street lamp power supply, road lamp power supply network, if the street-lamp node and its later road
The newest lamp voltage of Lantern Festival point be below the mobile average and the street-lamp node of the lamp voltage of corresponding street-lamp node and
The newest lamp voltage of its later street-lamp node is big with the difference of the mobile average of the lamp voltage of corresponding street-lamp node
In threshold value set in advance, then the value of the early warning counter of the street-lamp node is added 1, then execution step S4, otherwise by the road
The value of the early warning counter of Lantern Festival point resets to 0, then execution step S4.
The newest lamp voltage of the utilization street-lamp node described in step S4 calculates corresponding street-lamp node
The concrete grammar of the newest mobile average of lamp voltage is：
Vaxin=Vajiu×0.99+Vn× 0.01,
Wherein VaxinIt is the newest mobile average of the lamp voltage of street-lamp node, VajiuIt is the lamp voltage of street-lamp node
Mobile average, VnIt is the newest lamp voltage of street-lamp node.
The mobile average of the lamp voltage of the street-lamp node can be the lamp voltage movement of 500 minutes of street-lamp node
Average.
The threshold value set in advance can be 1V.
The number of times set in advance can be 5 times.
Embodiment 2
In order to reduce the false alarm rate that leaks electricity, can increase on the basis of the street lamp of embodiment 1 electric leakage automatic testing method
Following steps：Centralized Controller regularly or sporadically collects the power line carrier communication signal strength values of each street-lamp node,
If when the value of the early warning counter of certain street-lamp node is more than number of times set in advance, Centralized Controller is read in step S5
Take the power line carrier communication signal strength values of the now street-lamp node, and by its power line carrier communication with the street-lamp node
Signal strength values historical data is compared, if now the power line carrier communication signal strength values of the street-lamp node are less than this
The power line carrier communication signal strength values historical data and its difference of street-lamp node is more than threshold value set in advance, then table
Bright the street-lamp node electric leakage, otherwise execution step S6.
The power line carrier communication signal strength values of street-lamp node, in general, unless public lighting circuit situation occurs
Mutation (such as when adding capacitive character noise source), is not more big changes.But in cable leakage, the electricity of line related
Capacitive can increase, so as to the power line carrier communication signal strength values for causing this street-lamp node are reduced.Therefore, increase to each street lamp
The collection of the power line carrier communication signal strength values of node and judgement, can effectively reduce the false alarm rate that leaks electricity.
In the present invention, the node being located with the single-lamp controller of Centralized Controller direction communication is referred to as into first nodes, will
Cannot be with Centralized Controller direction communication, the list that only just can need to be communicated with Centralized Controller by the single-lamp controller of first nodes
The node that lamp controller is located is referred to as two-level node ... ..., by that analogy, will be unable to Centralized Controller direction communication and only
Need to pass through N-1 level nodes, N-2 level nodes, N-3 level nodes ..., the single-lamp controller of two-level node, first nodes just can be with
The node that the single-lamp controller of Centralized Controller communication is located is referred to as N level nodes.The Centralized Controller timing or not timing
Collect the concrete grammar of the power line carrier communication signal strength values of each street-lamp node in ground：Centralized Controller sends instructions to respectively
The single-lamp controller of first nodes, reads SS and SNR parameters, and wherein SS is power line carrier communication signal strength values, and SNR is electricity
Powerline carrier communication Signal-to-Noise；After completing above-mentioned parameter reading, Centralized Controller sends instructions to each first nodes
Single-lamp controller, the single-lamp controller for ordering each first nodes collects respectively the SS and SNR of its two-level node administered, and forwards
To Centralized Controller, the SS and SNR for now obtaining is SS and SNR of the two-level node relative to first nodes, rather than two grades of sections
SS and SNR of the point relative to Centralized Controller；Some two-level node may be subordinated to multiple different first nodes, so right
In same node, Centralized Controller may collect multiple different SS forwarded based on different superior nodes and SNR, this
When need to only take SS and the SNR SS and SNR as the two-level node of maximum；Complete the SS and SNR of all two-level nodes
After reading, Centralized Controller will continue to read the SS and SNR of three-level node；..., by that analogy, Centralized Controller is read step by step
Take the SS and SNR of all street-lamp nodes in its administration network.
In practical application, the situation that SS declines generally is occurred when channel noise intensity is larger, can now use SSpN generations
For SS, the SSpN=(SS/SNR × 10)2+ SS, wherein SSpN are strong using the power line carrier communication signal after SNR calibrations
Angle value, SS is power line carrier communication signal strength values, and SNR is power line carrier communication Signal-to-Noise.Then, in order to reduce
Electric leakage false alarm rate, can increase following steps on the basis of the street lamp of embodiment 1 electric leakage automatic testing method：Centralized Control
Device regularly or sporadically collects the power line carrier communication signal strength values after the utilization SNR calibrations of each street-lamp node
SSpN, if when the value of the early warning counter of certain street-lamp node is more than number of times set in advance, concentrating control in step S5
Device processed reads the power line carrier communication signal strength values SSpN after the utilization SNR calibrations of the now street-lamp node, and by its with
Power line carrier communication signal strength values SSpN historical datas after the utilization SNR calibrations of the street-lamp node are compared, if
Now the SSpN of the street-lamp node is more than thresholding set in advance less than the SSpN historical datas and its difference of the street-lamp node
Value, then show the street-lamp node electric leakage, otherwise execution step S6.
Claims (10)
1. a kind of street lamp leaks electricity automatic testing method, it is characterised in that comprise the steps：
S1, single-lamp controller measurement lamp voltage；
S2, Centralized Controller reads the lamp voltage that single-lamp controller measurement is obtained, and the lamp voltage for generating each street-lamp node is gone through
The Records of the Historian is recorded；
S3, calculates the mobile average of the lamp voltage of each street-lamp node；
S4, reads the lamp voltage of each street-lamp node, by the newest lamp voltage of each street-lamp node and corresponding street-lamp node
The mobile average of lamp voltage is compared, if the newest lamp voltage of certain street-lamp node is less than the road of corresponding street-lamp node
The movement of the mobile average of modulating voltage and the newest lamp voltage of the street-lamp node and the lamp voltage of corresponding street-lamp node
The difference of average is more than threshold value set in advance, and execution step S5 is otherwise calculated using the newest lamp voltage of the street-lamp node
Go out the newest mobile average of the lamp voltage of corresponding street-lamp node, the value of the early warning counter of the street-lamp node reset to into 0,
Then execution step S4；
S5, the value of the early warning counter of the street-lamp node is compared with number of times set in advance, if the street-lamp node is pre-
The value of alert counter is more than number of times set in advance, then show the street-lamp node electric leakage, otherwise execution step S6；
S6, all street lamps in Centralized Controller scanning street lamp power supply, road lamp power supply network, if the street-lamp node and its later street lamp section
Point newest lamp voltage be below corresponding street-lamp node lamp voltage mobile average and the street-lamp node and its with
The newest lamp voltage of street-lamp node afterwards is all higher than pre- with the difference of the mobile average of the lamp voltage of corresponding street-lamp node
The threshold value for first setting, then add 1, then execution step S4 by the value of the early warning counter of the street-lamp node, otherwise by the street lamp section
The value of the early warning counter of point resets to 0, then execution step S4.
2. street lamp as claimed in claim 1 leaks electricity automatic testing method, it is characterised in that the utilization described in step S4
The newest lamp voltage of the street-lamp node calculates the concrete side of the newest mobile average of the lamp voltage of corresponding street-lamp node
Method is：
Vaxin=Vajiu×0.99+Vn× 0.01,
Wherein VaxinIt is the newest mobile average of the lamp voltage of street-lamp node, VajiuIt is the movement of the lamp voltage of street-lamp node
Average, VnIt is the newest lamp voltage of street-lamp node.
3. street lamp as claimed in claim 1 leaks electricity automatic testing method, it is characterised in that the lamp voltage of the street-lamp node
Mobile average be street-lamp node the lamp voltage mobile average of 500 minutes.
4. street lamp as claimed in claim 1 leaks electricity automatic testing method, it is characterised in that the threshold value set in advance can be with
It is 1V.
5. street lamp as claimed in claim 1 leaks electricity automatic testing method, it is characterised in that the number of times set in advance can be with
It is 5 times.
6. as described in claim 1 to 5 any one street lamp electric leakage automatic testing method, it is characterised in that described street lamp
Electric leakage automatic testing method also includes that Centralized Controller regularly or is sporadically collected the power line carrier of each street-lamp node and led to
Letter signal strength values, if the value of the early warning counter of certain street-lamp node is more than number of times set in advance in step S5
When, Centralized Controller reads the power line carrier communication signal strength values of the now street-lamp node, and by itself and the street-lamp node
Power line carrier communication signal strength values historical data be compared, if the now power line carrier communication of the street-lamp node
Signal strength values are more than advance less than the power line carrier communication signal strength values historical data and its difference of the street-lamp node
The threshold value of setting, then show the street-lamp node electric leakage；Otherwise execution step S6.
7. street lamp as claimed in claim 6 leaks electricity automatic testing method, it is characterised in that the Centralized Controller timing or
The concrete grammar for sporadically collecting the power line carrier communication signal strength values of each street-lamp node is：Centralized Controller sends and refers to
Make to the single-lamp controller of each first nodes, read SS, wherein SS is power line carrier communication signal strength values；Complete above-mentioned ginseng
After number reads, Centralized Controller sends instructions to the single-lamp controller of each first nodes, orders single lamp control of each first nodes
Device processed collects respectively the SS of the two-level node of its administration, and is transmitted to Centralized Controller；The SS for now obtaining is two-level node phase
For the SS of first nodes, rather than two-level node is relative to the SS of Centralized Controller；Some two-level node may be subordinated to
Multiple different first nodes, so for same node, Centralized Controller may be collected multiple based on different higher levels
The different SS of node forwarding, now need to only take the SSs of the SS as the two-level node of maximum；Complete all two grades of sections
After the SS of point reads, Centralized Controller will continue to read the SS of three-level node；..., by that analogy, Centralized Controller is step by step
The SS of all street-lamp nodes in its administration network is read.
8. as described in claim 1 to 5 any one street lamp electric leakage automatic testing method, it is characterised in that described street lamp
Electric leakage automatic testing method also includes Centralized Controller timing or sporadically collects after the utilization SNR calibrations of each street-lamp node
Power line carrier communication signal strength values SSpN, if the value of the early warning counter of certain street-lamp node is big in step S5
When number of times set in advance, Centralized Controller reads the power line carrier after the utilization SNR calibrations of the now street-lamp node and leads to
Power line carrier communication signal strength values after letter signal strength values SSpN, and the utilization SNR calibrations by it with the street-lamp node
SSpN historical datas are compared, if now the SSpN of the street-lamp node less than the street-lamp node SSpN historical datas and
Its difference is more than threshold value set in advance, then show the street-lamp node electric leakage, otherwise execution step S6；Wherein SNR is electric power
Line carrier communication Signal-to-Noise.
9. street lamp as claimed in claim 8 leaks electricity automatic testing method, it is characterised in that described Centralized Controller timing or
Person sporadically collects the concrete side of the power line carrier communication signal strength values SSpN after the utilization SNR calibrations of each street-lamp node
Method is：Centralized Controller sends instructions to the single-lamp controller of each first nodes, reads SS and SNR parameters, and wherein SS is electric power
Line carrier communication signal strength values, SNR is power line carrier communication Signal-to-Noise；After completing above-mentioned parameter reading, concentrate
Controller sends instructions to the single-lamp controller of each first nodes, and the single-lamp controller for ordering each first nodes collects respectively its pipe
The SS and SNR of the two-level node of linchpin, and Centralized Controller is transmitted to, the SS and SNR for now obtaining is two-level node relative to one
The SS and SNR of level node, rather than two-level node is relative to the SS and SNR of Centralized Controller；Some two-level node may be from
Belong to multiple different first nodes, so for same node, Centralized Controller may be collected multiple based on different
The different SS and SNR of superior node forwarding, now need to only take SS and the SNR SS and SNR as the two-level node of maximum
；After the SS and snr reading for completing all two-level nodes takes, Centralized Controller by continue read three-level node SS and
SNR；..., by that analogy, Centralized Controller has read step by step the SS and SNR of all street-lamp nodes in its administration network；So
Afterwards SS is calibrated using SNR to obtain using the power line carrier communication signal strength values SSpN after SNR calibrations.
10. street lamp as claimed in claim 9 leaks electricity automatic testing method, it is characterised in that described utilization SNR is carried out to SS
Calibrate and be using the concrete grammar of the power line carrier communication signal strength values SSpN after SNR calibrations to obtain：
SSpN=(SS/SNR × 10)2+SS；
Wherein, SSpN is that SS is power line carrier communication signal using the power line carrier communication signal strength values after SNR calibrations
Intensity level, SNR is power line carrier communication Signal-to-Noise.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110972379A (en) * | 2019-12-27 | 2020-04-07 | 浙江冠南能源科技有限公司 | Electric leakage protection detection system for intelligent street lamp and detection method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785213A (en) * | 2016-03-10 | 2016-07-20 | 北京国城科绿色照明科技研究中心有限公司 | Detection system and detection method for electric leakage point of main circuit of streetlight |
| CN106019052A (en) * | 2016-06-20 | 2016-10-12 | 珠海格力电器股份有限公司 | Water heater and electric leakage detection device and method thereof |
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| JPH06111950A (en) * | 1992-09-30 | 1994-04-22 | Toshiba Lighting & Technol Corp | Illumination monitoring device |
| CN201690648U (en) * | 2010-05-05 | 2010-12-29 | 天通浙江精电科技有限公司 | Intelligent street lamp system of wireless sensing network |
| CN104349560A (en) * | 2013-08-01 | 2015-02-11 | 欧司朗有限公司 | Fault detection apparatus for street lamp illumination system, and operation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06111950A (en) * | 1992-09-30 | 1994-04-22 | Toshiba Lighting & Technol Corp | Illumination monitoring device |
| CN201690648U (en) * | 2010-05-05 | 2010-12-29 | 天通浙江精电科技有限公司 | Intelligent street lamp system of wireless sensing network |
| CN104349560A (en) * | 2013-08-01 | 2015-02-11 | 欧司朗有限公司 | Fault detection apparatus for street lamp illumination system, and operation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110972379A (en) * | 2019-12-27 | 2020-04-07 | 浙江冠南能源科技有限公司 | Electric leakage protection detection system for intelligent street lamp and detection method thereof |
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