CN204230852U - Street lamp detection and protection apparatus for leakage - Google Patents
Street lamp detection and protection apparatus for leakage Download PDFInfo
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- CN204230852U CN204230852U CN201420516352.8U CN201420516352U CN204230852U CN 204230852 U CN204230852 U CN 204230852U CN 201420516352 U CN201420516352 U CN 201420516352U CN 204230852 U CN204230852 U CN 204230852U
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Abstract
The utility model discloses a kind of street lamp detection and protection apparatus for leakage, comprising: detection of electrical leakage module, microcontroller and switch control module; Detection of electrical leakage module, for detecting leakage current signal and exporting according to after leakage current signal formation leakage-current alarm signal, latches leakage-current alarm signal simultaneously; Detection of electrical leakage module also comprises reset unit, for resetting to detection of electrical leakage module under the control of the reset signal of microcontroller; Microcontroller is used for generating power down control signal according to leakage-current alarm signal and exporting to switch control module, exports reset signal to detection of electrical leakage module simultaneously; Switch control module is used for cutting off power supply to the power supply of street lamp according to power down control signal; Microcontroller also confirms the position of rain supply for the output according to detection of electrical leakage module after the power supply of street lamp disconnects.Above-mentioned street lamp detection and protection apparatus for leakage can realize earth leakage protective and can confirming rain supply timely.
Description
Technical field
The utility model relates to street lighting technical field, particularly relates to a kind of street lamp detection and protection apparatus for leakage.
Background technology
In recent years, along with the develop rapidly of China's urban construction, road lighting there occurs huge change.Street lamp sum is doubled and redoubled, the mode of street lighting is also abundanter.But meanwhile, because lamp stand electric leakage causes the accident of casualties also in continuous generation.Traditional street lamp is adopted and is connected with the earth by earthing device by lamp stand metal shell, or the mode that street lamp metal shell is connected with the zero line of ground connection is to carry out earth leakage protective.This earth leakage protective mode can cause leaky and make lamp stand surface charging, and then easily bring the accident of casualties because of the aging breakage of supply line, supply line's fault, lighting apparatus (LED power, electric ballast etc.) fault etc.Current part leakage protector for road lamp; earth leakage protective is carried out by automatic switch, fuse or earth leakage protective device; although can reach certain protected effect, automatic switch and fuse just can will work being greater than normal load electric current, are difficult to the life security ensureing pedestrian.And these earth leakage protective devices cannot analyze the place that rain supply produces, and are not easy to carry out electric leakage maintenance management.
Utility model content
Based on this, be necessary for the problems referred to above, provide a kind of earth leakage protective in time and the street lamp detection and protection apparatus for leakage that can confirm rain supply.
A kind of street lamp detection and protection apparatus for leakage, comprising: detection of electrical leakage module, microcontroller and switch control module; Described detection of electrical leakage module and described switch control module are electrically connected with described microcontroller respectively; Described detection of electrical leakage module, for detecting leakage current signal and exporting according to after described leakage current signal formation leakage-current alarm signal, latches described leakage-current alarm signal simultaneously; Described detection of electrical leakage module also comprises reset unit, for resetting to described detection of electrical leakage module under the control of the reset signal of described microcontroller; Described microcontroller is used for generating power down control signal according to described leakage-current alarm signal and exporting to described switch control module, exports reset signal to described detection of electrical leakage module simultaneously; Described switch control module is used for cutting off power supply to the power supply of street lamp according to described power down control signal; Described microcontroller also confirms the position of rain supply for the output according to described detection of electrical leakage module after the power supply of described street lamp disconnects; specifically when the power supply of described street lamp disconnects and described detection of electrical leakage module exports leakage-current alarm signal; confirm that rain supply is described street lamp detection and protection apparatus for leakage; when the power supply of described street lamp disconnects and described detection of electrical leakage module does not export leakage-current alarm signal, confirm that rain supply is street lamp load equipment.
Wherein in an embodiment, described detection of electrical leakage module comprises zero-sequence transformer, for gathering leakage current signal.
Wherein in an embodiment, described detection of electrical leakage module also comprises comparison circuit unit, for exporting leakage-current alarm signal when described leakage current signal is greater than default leakage-current alarm threshold value.
Wherein in an embodiment, also comprise alarm module, be electrically connected with described microcontroller, for giving the alarm after the leakage-current alarm signal receiving the output of described microcontroller.
Wherein in an embodiment, described alarm module is audible-visual annunciator.
Wherein in an embodiment, described microcontroller is also for generating electric control signal when receiving and restoring electricity signal and exporting to described switch control module, and generating reset signal gives described detection of electrical leakage module simultaneously; Described switch control module to restore electricity the power supply of power supply to street lamp according to described upper electric control signal.
Wherein in an embodiment, also comprise electric parameter enquiry module, for inquiring about the electric parameter of current street lamp load equipment, to obtain the current operating state of street lamp load equipment; Described microcontroller is also for determining the position of rain supply according to the output of described detection of electrical leakage module and described electric parameter enquiry module.
Wherein in an embodiment, also comprise communication module, be connected with described microcontroller, for the electric parameter of described street lamp load equipment and leakage-current alarm signal are exported to host computer.
Wherein in an embodiment, described communication module is power line carrier, PLC module.
Above-mentioned street lamp detection and protection apparatus for leakage, microcontroller disconnects the power supply of street lamp according to leakage-current alarm Signal-controlled switch control module, carries out earth leakage protective timely to street lamp.Meanwhile, microcontroller also exports reset signal to detection of electrical leakage module, and detection of electrical leakage module proceeds leakage current signal and detects, if detection of electrical leakage module still exports leakage-current alarm signal, can confirm that rain supply is street lamp detection and protection apparatus for leakage itself; Otherwise, then can confirm that rain supply is street lamp load equipment, thus be convenient to attendant rain supply is safeguarded, improve maintenance efficiency.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the street lamp detection and protection apparatus for leakage in an embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Figure 1 shows that the structured flowchart of the street lamp detection and protection apparatus for leakage in an embodiment.In the present embodiment, street lamp detection and protection apparatus for leakage is used for, in intelligent street lamp control system, comprising detection of electrical leakage module 110, microcontroller 120 and switch control module 130.Detection of electrical leakage module 110 and switch control module 130 are electrically connected with microcontroller 120 respectively.
Detection of electrical leakage module 110 for detecting leakage current signal, and exports after forming leakage-current alarm signal according to leakage current signal, latches leakage-current alarm signal simultaneously.In the present embodiment, detection of electrical leakage module 110 comprises zero-sequence transformer, comparison circuit unit and reset unit.Zero-sequence transformer is for the leakage current signal that gathers in road lamp system and export to comparison circuit unit.Comparison circuit unit receives leakage current signal and is compared with preset alarm threshold value by this signal.After leakage current signal is greater than preset alarm threshold value, export leakage-current alarm signal to microcontroller.Detection of electrical leakage module 110 latches this leakage-current alarm signal when exporting leakage-current alarm signal.Reset unit is used for resetting detection of electrical leakage module 110 after the reset signal receiving microcontroller 120 output, makes detection of electrical leakage module 110 reopen earth leakage detection functions, recovers the detection of electrical leakage to road lamp system in time.In the present embodiment, detection of electrical leakage module 110 uninterruptedly can detect leakage current signal after unlatching, to detect leakage current signal in the electric leakage generation very first time, thus to be controlled by the power supply of microcontroller 120 and switch control module 130 pairs of street lamps.
Microcontroller 120 for receiving leakage-current alarm signal, and generates power down control signal and reset signal according to leakage-current alarm signal.Switch control module 130 for receiving power down control signal, and to break the power supply of power supply to street lamp in the control incision of this power down control signal, thus produces in electric leakage the power supply that the very first time cuts off street lamp, enhances earth leakage protective fail safe.Whole power-off protection process, can to effectively ensureing personal security without the need to just effective after street lamp load current exceedes normal value.Detection of electrical leakage module 110 receives reset signal, and reopens earth leakage detection functions under the control of reset signal, continues to detect leakage current signal.In the present embodiment, microcontroller 120 also for disconnect street lamp at switch control module 130 power supply after, according to the particular location of the output situation determination rain supply of detection of electrical leakage module 110.Be specially, when the power supply of street lamp disconnects, detection of electrical leakage module 110 still detects leakage current signal, and namely microcontroller 120 still can receive leakage-current alarm signal, then illustrate that this rain supply is street lamp detection and protection apparatus for leakage itself; If microcontroller 120 does not receive leakage-current alarm signal, can confirm that rain supply is street lamp load equipment.Therefore, according to the judgement to rain supply, attendant can carry out confirmation location to rain supply rapidly and safeguard it, to recover the power supply of street lamp as early as possible.
Above-mentioned street lamp detection and protection apparatus for leakage, microcontroller 120 disconnects the power supply of street lamp according to leakage-current alarm Signal-controlled switch control module 130, carries out earth leakage protective timely to street lamp, enhances earth leakage protective fail safe.Simultaneously; microcontroller 120 also exports reset signal to detection of electrical leakage module 110; detection of electrical leakage module 110 proceeds leakage current and detects; if detection of electrical leakage module still exports leakage-current alarm signal; then can confirm that rain supply is street lamp detection and protection apparatus for leakage itself; otherwise then can confirm that rain supply is street lamp load equipment, thus be convenient to attendant rain supply is safeguarded.
In the present embodiment, microcontroller 120 is also for receiving the signal that restores electricity.When attendant to carry out after maintenance makes leak current fault not exist to rain supply, microcontroller 120 sends the signal that restores electricity.Microcontroller 120 generates electric control signal and exports to switch control module 130 after receiving the signal that restores electricity, and generating reset signal is to detection of electrical leakage module 110 simultaneously.Switch control module 130 restores electricity the power supply of power supply to street lamp under the control of upper electric control signal, to realize the power supply recovering street lamp after leak current fault is removed in time.Meanwhile, switch control module 130 restores electricity the power supply process of power supply to street lamp without the need to human intervention, only namely need can realize automatic recovery of power supply by the control of microcontroller 120.Detection of electrical leakage module 110 resets under the control of reset signal, guarantees the normal unlatching of earth leakage detection functions.
As shown in Figure 1, in the present embodiment, above-mentioned street lamp detection and protection apparatus for leakage also comprises alarm module 140, electric parameter enquiry module 150 and communication module 160.Alarm module 140, electric parameter enquiry module 150 and communication module 160 are electrically connected with microcontroller 120 respectively.
The leakage-current alarm signal that alarm module 140 exports for receiving microcontroller 120, and give the alarm after receiving this leakage-current alarm signal, avoid pedestrian near the accident that electric leakage region causes casualties in unwitting situation, thus reach local leakage warning function.In the present embodiment, alarm module 140 can be an audible-visual annunciator.
Electric parameter enquiry module 150 is inquired about for carrying out detection to the electric parameter of current street lamp load equipment, to obtain the current operating state of street lamp load equipment.Microcontroller 120 can confirm the particular location of rain supply according to the output of electric parameter enquiry module 150 and detection of electrical leakage module 110.Inquire the current operating state of street lamp load equipment by electric parameter enquiry module 150, confirm that the power supply of current street lamp is in disconnection or connection status.When the power supply that electric parameter enquiry module 150 inquires current street lamp is in disconnection; detection of electrical leakage module 110 still exports leakage-current alarm signal; then illustrate that rain supply is street lamp detection and protection apparatus for leakage itself; if detection of electrical leakage module 110 does not detect leakage-current alarm signal; then illustrate that this rain supply is street lamp load equipment; thus the accurate location realized rain supply, so that the lamp load equipment that satisfies the need carries out earth leakage protective timely and effectively.
Communication module 160 exports to host computer for the electric parameter of the street lamp load equipment that the leakage-current alarm signal that produced by microcontroller 120 and electric parameter enquiry module 150 export, therefore carrying out patrolling to scene without the need to staff namely can the long-range ruuning situation knowing current street lamp in time, and realizes remote alarming function.Electric leakage information and electric leakage state can be reported administrative department by communication module 160 simultaneously, facilitate manager to safeguard.Unattended operation inspection can be realized by communication module 160 and just can understand current alerts information in time, management cost and maintenance cost can be lowered, improve fault removal efficiency.Meanwhile, administrative department can carry out monitoring in real time, accurately and comprehensively to the operation conditions of street lamp by communication module 160.In the present embodiment, communication module 160 is power line carrier, PLC module.In other embodiments, communication module 160 also can adopt other modes to realize the communication between street lamp detection and protection apparatus for leakage and host computer.
The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (9)
1. a street lamp detection and protection apparatus for leakage, is characterized in that, comprising: detection of electrical leakage module, microcontroller and switch control module; Described detection of electrical leakage module and described switch control module are electrically connected with described microcontroller respectively;
Described detection of electrical leakage module, for detecting leakage current signal and exporting according to after described leakage current signal formation leakage-current alarm signal, latches described leakage-current alarm signal simultaneously; Described detection of electrical leakage module also comprises reset unit, for resetting to described detection of electrical leakage module under the control of the reset signal of described microcontroller;
Described microcontroller is used for generating power down control signal according to described leakage-current alarm signal and exporting to described switch control module, exports reset signal to described detection of electrical leakage module simultaneously; Described switch control module is used for cutting off power supply to the power supply of street lamp according to described power down control signal; Described microcontroller also confirms the position of rain supply for the output according to described detection of electrical leakage module after the power supply of described street lamp disconnects; specifically when the power supply of described street lamp disconnects and described detection of electrical leakage module exports leakage-current alarm signal; confirm that rain supply is described street lamp detection and protection apparatus for leakage; when the power supply of described street lamp disconnects and described detection of electrical leakage module does not export leakage-current alarm signal, confirm that rain supply is street lamp load equipment.
2. street lamp detection and protection apparatus for leakage according to claim 1, is characterized in that, described detection of electrical leakage module comprises zero-sequence transformer, for gathering leakage current signal.
3. street lamp detection and protection apparatus for leakage according to claim 2, is characterized in that, described detection of electrical leakage module also comprises comparison circuit unit, for exporting leakage-current alarm signal when described leakage current signal is greater than default leakage-current alarm threshold value.
4. street lamp detection and protection apparatus for leakage according to claim 1, is characterized in that, also comprise alarm module, is electrically connected with described microcontroller, for giving the alarm after the leakage-current alarm signal receiving the output of described microcontroller.
5. street lamp detection and protection apparatus for leakage according to claim 4, is characterized in that, described alarm module is audible-visual annunciator.
6. street lamp detection and protection apparatus for leakage according to claim 1, it is characterized in that, described microcontroller is also for generating electric control signal when receiving and restoring electricity signal and exporting to described switch control module, and generating reset signal gives described detection of electrical leakage module simultaneously; Described switch control module to restore electricity the power supply of power supply to street lamp according to described upper electric control signal.
7. street lamp detection and protection apparatus for leakage according to claim 1, is characterized in that, also comprises electric parameter enquiry module, for inquiring about the electric parameter of current street lamp load equipment, to obtain the current operating state of street lamp load equipment; Described microcontroller is also for determining the position of rain supply according to the output of described detection of electrical leakage module and described electric parameter enquiry module.
8. street lamp detection and protection apparatus for leakage according to claim 7, is characterized in that, also comprise communication module, is connected with described microcontroller, for the electric parameter of described street lamp load equipment and leakage-current alarm signal are exported to host computer.
9. street lamp detection and protection apparatus for leakage according to claim 8, is characterized in that, described communication module is power line carrier, PLC module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420516352.8U CN204230852U (en) | 2014-09-09 | 2014-09-09 | Street lamp detection and protection apparatus for leakage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420516352.8U CN204230852U (en) | 2014-09-09 | 2014-09-09 | Street lamp detection and protection apparatus for leakage |
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| CN204230852U true CN204230852U (en) | 2015-03-25 |
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| CN201420516352.8U Withdrawn - After Issue CN204230852U (en) | 2014-09-09 | 2014-09-09 | Street lamp detection and protection apparatus for leakage |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283180A (en) * | 2014-09-09 | 2015-01-14 | 深圳华智测控技术有限公司 | Street lamp leakage detection and protection device and leakage detection and protection method thereof |
| CN107492870A (en) * | 2017-08-16 | 2017-12-19 | 国网浙江省电力公司杭州供电公司 | A kind of cable leakage detection control apparatus |
| CN113099596A (en) * | 2021-03-16 | 2021-07-09 | 浙江冠南能源科技有限公司 | Intelligent street lamp-based intelligent electric leakage safety control system and control method |
-
2014
- 2014-09-09 CN CN201420516352.8U patent/CN204230852U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283180A (en) * | 2014-09-09 | 2015-01-14 | 深圳华智测控技术有限公司 | Street lamp leakage detection and protection device and leakage detection and protection method thereof |
| CN104283180B (en) * | 2014-09-09 | 2017-05-31 | 深圳华智测控技术有限公司 | Street lamp detection and protection apparatus for leakage and its current leakage detection protection method |
| CN107492870A (en) * | 2017-08-16 | 2017-12-19 | 国网浙江省电力公司杭州供电公司 | A kind of cable leakage detection control apparatus |
| CN113099596A (en) * | 2021-03-16 | 2021-07-09 | 浙江冠南能源科技有限公司 | Intelligent street lamp-based intelligent electric leakage safety control system and control method |
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Granted publication date: 20150325 Effective date of abandoning: 20170531 |