CN101943725A - Online detection device of SPD (Surge Protective Device) - Google Patents
Online detection device of SPD (Surge Protective Device) Download PDFInfo
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- CN101943725A CN101943725A CN2009100695921A CN200910069592A CN101943725A CN 101943725 A CN101943725 A CN 101943725A CN 2009100695921 A CN2009100695921 A CN 2009100695921A CN 200910069592 A CN200910069592 A CN 200910069592A CN 101943725 A CN101943725 A CN 101943725A
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Abstract
The invention relates to an online detection device of an SPD (Surge Protective Device), belonging to the field of lightning surge protection. The online detection device of the SPD comprises a magnetic induction unit (1), a signal conversion and transmission unit (2) and a data analysis unit (3), wherein the magnetic induction unit (1) is mounted close to a loop (7) of a surge suppression device (4), and the signal conversion and transmission unit (2) is connected with the magnetic induction unit (1) through a transmission line (5) and also connected with the data analysis unit (3). The invention has the advantages of high detection accuracy and sensitive reaction and realizes remote processing and network sharing of detection information.
Description
Technical field
The invention belongs to lightning surge protective device field.
Technical background
Thunder and lightning is a kind of special weather phenomenon of aloft being discharged and being caused by charged cloud.Thunder and lightning is the major reason that causes electronic equipment to damage, and it threatens the safety of every field electronic informations such as building, railway, civil aviaton, communication, industry control, military affairs.Surge Protector is to be mainly used in the protection class device that suppresses lightning surge.The installation Surge Protector is one of lightning protection important measures on the metallic circuits such as the power lead of electronic equipment, signal wire and control line being connected in.At present the each department every profession and trade all drops into a huge sum of money and purchase the installation Surge Protector in a large number every year.But in essence; Surge Protector is the device of a kind of " sacrificing oneself; protect others "; when Surge Protector suffers the lightning surge electric current; or long-term the use, must occur aging and damage, at this moment; Surge Protector has just lost the function of protection electronic electric equipment, impaired to a certain degree Surge Protector in addition may cause line interruption or short circuit.This to the thunder and lightning apparatus sensitive, in thunder and lightning season or area occurred frequently, is flagrant to those particularly, or even " fatal ".This has just caused the urgent demand of user: the one, know in time whether each Surge Protector is also playing due protective effect this moment, if not, then should safeguard replacing at once; The 2nd, know that Surge Protector has met with the situation of thunderbolt, that is to say, predict Surge Protector and whether soon lose efficacy, so that carry out maintenance work in advance.
This shows that because the user does not know the current state of each Surge Protector, lightning protection has just been become " blind person ", the lightning protection safety of electronic information just becomes unknowable thing.In fact, the investigation statistics that the thunder and lightning disaster of nearly 10 years all trades and professions is carried out shows that a lot of Surge Protectors have damaged but undiscovered, and the situation that causes thunder and lightning to break the accident of equipment thus accounts for sizable ratio.Though therefore this problem seems very little, is related to the safety of each department every profession and trade electronic information conscientiously.Therefore the state of Surge Protector is detected to handle with subsequent analysis and just seem very important.
At present, have following several for addressing the above problem method and the technical scheme taked:
One, generally adopts the method that regularly Surge Protector is detected at present; detect general every year before and after thunderstorm season, but this method usually can not play effect, and this is because after regular detection; possible Surge Protector is just broken by thunder and lightning at once, and follow-up thunderbolt will be smashed equipment.In addition, for the Surge Protector that is installed in the signal circuit, usually because can not look-at-me and can not shut down, even so when regularly detecting, the signal Surge Protector can not effectively be detected.
Two, the microswitch that thermal release device is set in power source surge protector inside and links with it, switching value of output was reported to the police to the fault of Surge Protector by this switching value when cause thermal damage takes place power source surge protector.The problem of this its existence of method is: 1, surge suppression device deterioration or damage and may not produce the energy that is enough to make the trip gear action, the alarm unit output of can not reporting to the police at this moment.2, just possible output alarm signal when device damages fully can not be predicted in advance; Reason to state in its damage process and damage all be can not determine; 3, be not suitable for the class signal Surge Protector; 4, the energy of thunder-strike current and time can't be carried out analyzing and processing by specialized equipment.
Three, getting involved the Surge Protector circuit with electron device detects.Its defective is that metering circuit itself has taken place to be electrically connected with the Surge Protector circuit, causes metering circuit to be damaged in advance by lightning surge.
Four, " novel detection device of Surge Protector " (patent No. ZL200720177057.4) that is proposed by me is for the problems referred to above have proposed a solution, and this scheme has tentatively solved the problem on line detection of Surge Protector.Its defective is: temperature switch can not accurately and timely reflect that still the temperature information that therefore can support judgement is inadequately fully with direct to the surge suppression device temperature variation.
Summary of the invention
In order effectively to overcome the above problems, to the present invention proposes a kind of magnetic field intensity and realize that online detection Surge Protector wears out or the device of deterioration condition based on collection surge suppression device loop.
When electric current flows through conductor, around conductor, can produce magnetic field, and the size in magnetic field and size of current positive correlation.Carry out magnetic field detection by loop, just can realize detection, and then realize the situation quality of surge suppression device is detected the lightning current on the Surge Protector to surge suppression device.
The technical scheme that the present invention solves the problems of the technologies described above is: a kind of on-line measuring device of novel Surge Protector; comprise magnetic strength unit (1), conversion of signals transmission unit (2) and data analysis unit (3); the loop of described magnetic strength unit (1) and surge suppression device (4) is near installing; described magnetic strength unit (1) is connected with conversion of signals transmission unit (2) by transmission line (5), and described conversion of signals transmission unit (2) is connected with data analysis unit (3).
Described magnetic strength unit (1) is the loop that comprises the magnetic strength device.
Described conversion of signals transmission unit (2) comprises A/D change-over circuit and circuit for transmitting digital signals, is connected with bus system or multiple-way system mode between conversion of signals transmission unit (2) and the data analysis unit (3), or connects by network.
Data analysis unit (3) comprises the judgement software for display that is moved on computing machine and the computing machine; Described judgement software for display comprises Presentation Function module, computing function module; Described computing function module comprises the algorithm based on the various relations between magnetic signature, surge current size and characteristic, the Surge Protector damaged condition three.
Described data analysis unit (3) is the integrated circuit according to set Data Analysis Model operation.
A conversion of signals transmission unit (2) connects one or more magnetic strengths unit (1), and a data analysis unit (3) connects one or more conversion of signals transmission units (2), and data analysis unit (3) inserts private or internet.
Described conversion of signals transmission unit (2) can be integrated in one with magnetic strength unit (1).
Described conversion of signals transmission unit (2) can be integrated in one with data analysis unit (3).
Advantage of the present invention is:
One, can online in real time detects the state of Surge Protector and whether also playing due protective effect, for the maintenance of Surge Protector provides information promptly and accurately;
Two, efficiently solve the surge suppression device deterioration that existing detection method exists or do not produce the energy that is enough to make the trip gear action when damaging, cause can not the report to the police problem of output of alarm unit.
Three, can in time grasp the situation that Surge Protector has met with thunderbolt, thereby whether the precognition Surge Protector lost efficacy soon,, solved the only difficult problem of ability output alarm signal after device failure of existing detection method so that carry out maintenance work in advance.
Four, can detect the state in the record surge suppression device damage process and the reason of damage; For lightning protection provides full and accurate data message.
Five, widely applicable, not only be suitable for power supply class Surge Protector, and be applicable to the class signal Surge Protector.
Six, metering circuit itself does not have with the Surge Protector circuit and is electrically connected, and the problem of having avoided metering circuit to be damaged in advance by lightning surge has also been avoided because the intervention of metering circuit makes the class signal Surge Protector produce the problem of loss of signal and trouble spot.
Seven, data analysis unit (3) inserts private or internet realization remote real-time monitoring, also can and share detected data in transmission over networks.
Description of drawings
The principle schematic of Fig. 1 invention
The synoptic diagram of Fig. 2 invention access network
The principle schematic of Fig. 3 inventive embodiments
Embodiment
State embodiment below in conjunction with the drawings and Examples opinion
Consult shown in Fig. 1-3, the 1st, magnetic strength unit, the 2nd, conversion of signals transmission unit, the 3rd, data analysis unit, the 4th, surge suppression device, the 5th, transmission line, the 6th, Surge Protector shell, the 7th, loop, the 8th, private or internet, the 9th, transmission channel.
The on-line measuring device of Surge Protector of the present invention; comprise magnetic strength unit (1), conversion of signals transmission unit (2) and data analysis unit (3); the loop of described magnetic strength unit (1) and surge suppression device (4) is near installing; described magnetic strength unit (1) is connected with conversion of signals transmission unit (2) by transmission line (5), and described conversion of signals transmission unit (2) is connected with data analysis unit (3).
Described conversion of signals transmission unit (2) comprises A/D change-over circuit and circuit for transmitting digital signals, and data analysis unit (3) comprises the judgement software for display of computing machine and computer run; Described judgement software for display comprises Presentation Function module, computing function module; Described computing function module comprises the algorithm based on the various relations between magnetic signature, surge current size and characteristic, the Surge Protector damaged condition three.
A conversion of signals transmission unit (2) connects one or more magnetic strengths unit (1), and a data analysis unit (3) connects one or more conversion of signals transmission units (2), and data analysis unit (3) can insert private or internet.
Magnetic strength unit (1) places near the loop of surge suppression device (4), when thunder-strike current passes through surge suppression device (4) part, produce magnetic field around the loop of surge suppression device, the magnetic strength device is sensed magnetic field, the output electric signal is transferred to conversion of signals transmission unit (2), conversion of signals transmission unit (2) carries out the A/D conversion to this signal, and being about to it is digital signal by analog signal conversion, and digital signal is transferred to data analysis unit (3) with 485 bus modes again.Data analysis unit (3) is a computing machine and a converter that 485 bus signals is converted to ethernet signal that Surge Protector detection management software is installed in the present embodiment.When computing machine receives the field signal that transmits by 485 buses.Can judge and show the damaged condition of type, source, size and the surge suppression device (4) of surge current by calculating and comparing with the data model of having set up.Because bus signals itself contains address information, therefore can know the position and the numbering of the Surge Protector that lightning surge occurs or break down.Computing machine can be by connecting the internet, and the remote analysis of realization Surge Protector is handled and the network of the information of detection is shared.
Another kind of embodiment is the analysis and judgement software for display that moves on computing machine in the above-mentioned data analysis unit (3) and the computing machine, replaces with integrated circuit.Can adopt according to the DSP integrated circuit of set Data Analysis Model operation and realize equal function.
A kind of embodiment is arranged again: the transmission form between conversion of signals transmission unit (2) and the data analysis unit (3) is not limited to bus form, according to actual conditions, also can adopt the multiple-way system mode to transmit, benly be: also can connect between the two by network, promptly transform the digital signal that draws, can connect in the computing machine of network to any one by network delivery, this digital signal not only can in time be gathered, but also can carry out analyzing and processing with the computing machine operating software, obtain a result, thereby realized long-range information processing and shared.
Moreover, the present invention can realize that a conversion of signals transmission unit (2) can be handled the information that a plurality of magnetic strengths unit (1) sends simultaneously, helps to improve the efficient that signal transforms and transmits like this; And a data analysis unit (3) can analyse the information that a plurality of conversion of signals transmission units (2) transmission is come of handling simultaneously, realizes concentrating monitoring to handle, and can draw horizontal comparing data, for following lightning protection provides full and accurate statistics.
And data analysis unit (3) can insert private or internet.Data analysis unit (3) in the private constitutes a relatively independent lightning protection system; Data analysis unit in the internet (3) constitute one more extensively, lightning protection detection system that can seamless link; concluding data or raw data realize that by network remote detection is handled and the network of the information of detection is shared; can realize the Centralized Monitoring and the subsequent treatment of Surge Protector duty in the lightning protection field, help to improve the integral level of lightning protection technical field.
Utilizing technical scheme of the present invention, reach the corresponding techniques effect, perhaps in the technical scheme equivalents that does not break away under the design philosophy of the present invention, all is within protection scope of the present invention.
Claims (8)
1. the on-line measuring device of a Surge Protector; comprise magnetic strength unit (1), conversion of signals transmission unit (2) and data analysis unit (3); it is characterized in that: the loop of described magnetic strength unit (1) and surge suppression device (4) is near installing; described magnetic strength unit (1) is connected with conversion of signals transmission unit (2) by transmission line (5), and described conversion of signals transmission unit (2) is connected with data analysis unit (3).
2. the on-line measuring device of Surge Protector according to claim 1, it is characterized in that: described magnetic strength unit (1) is the loop that comprises the magnetic strength device.
3. the on-line measuring device of Surge Protector according to claim 1; it is characterized in that: described conversion of signals transmission unit (2) comprises A/D change-over circuit and circuit for transmitting digital signals; be connected with bus system or multiple-way system mode between conversion of signals transmission unit (2) and the data analysis unit (3), or connect by network.
4. the on-line measuring device of Surge Protector according to claim 1, it is characterized in that: data analysis unit (3) comprises the judgement software for display that is moved on computing machine and the computing machine; Described judgement software for display comprises Presentation Function module, computing function module; Described computing function module comprises the algorithm based on the various relations between magnetic signature, surge current size and characteristic, the Surge Protector damaged condition three.
5. the on-line measuring device of Surge Protector according to claim 1 is characterized in that: described data analysis unit (3) is the integrated circuit according to set Data Analysis Model operation.
6. the on-line measuring device of Surge Protector according to claim 1; it is characterized in that: a conversion of signals transmission unit (2) can connect one or more magnetic strengths unit (1); a data analysis unit (3) connects one or more conversion of signals transmission units (2), and data analysis unit (3) can insert private or internet.
7. the on-line measuring device of Surge Protector according to claim 1 is characterized in that: described conversion of signals transmission unit (2) is integrated in one with magnetic strength unit (1).
8. the on-line measuring device of Surge Protector according to claim 1 is characterized in that: described conversion of signals transmission unit (2) is integrated in one with data analysis unit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100695921A CN101943725A (en) | 2009-07-06 | 2009-07-06 | Online detection device of SPD (Surge Protective Device) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100695921A CN101943725A (en) | 2009-07-06 | 2009-07-06 | Online detection device of SPD (Surge Protective Device) |
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| Publication Number | Publication Date |
|---|---|
| CN101943725A true CN101943725A (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100695921A Pending CN101943725A (en) | 2009-07-06 | 2009-07-06 | Online detection device of SPD (Surge Protective Device) |
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| CN (1) | CN101943725A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753054A (en) * | 2013-12-31 | 2015-07-01 | 孙巍巍 | Surge protector |
| CN107179515A (en) * | 2017-06-22 | 2017-09-19 | 同济大学 | A kind of eddy current damper health monitoring systems |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5728441A (en) * | 1980-07-28 | 1982-02-16 | Nec Corp | Monitor device for antenna power |
-
2009
- 2009-07-06 CN CN2009100695921A patent/CN101943725A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5728441A (en) * | 1980-07-28 | 1982-02-16 | Nec Corp | Monitor device for antenna power |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753054A (en) * | 2013-12-31 | 2015-07-01 | 孙巍巍 | Surge protector |
| CN107179515A (en) * | 2017-06-22 | 2017-09-19 | 同济大学 | A kind of eddy current damper health monitoring systems |
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Application publication date: 20110112 |