CN101943726A - Online detection device of surge protective device - Google Patents

Online detection device of surge protective device Download PDF

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Publication number
CN101943726A
CN101943726A CN2009100695936A CN200910069593A CN101943726A CN 101943726 A CN101943726 A CN 101943726A CN 2009100695936 A CN2009100695936 A CN 2009100695936A CN 200910069593 A CN200910069593 A CN 200910069593A CN 101943726 A CN101943726 A CN 101943726A
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surge
surge protector
data analysis
unit
conversion
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CN2009100695936A
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Chinese (zh)
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孙巍巍
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Individual
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Abstract

The invention relates to an online detection device of a surge protective device, belonging to the field of lightning surge protection. The device comprises an infrared detection unit (1), a signal conversion and transmission unit (2) and a data analysis unit (3), wherein the receiving direction of the infrared detection unit (1) faces a surge suppressing device (4); the infrared detection unit (1) is connected with the signal conversion and transmission unit (2) by a transmission line (5); and the signal conversion and transmission unit (2) is connected with the data analysis unit (3). The device has high detection precision and is sensitive in reaction and realizes remote processing and network sharing of the detection information.

Description

The on-line measuring device of Surge Protector
Technical field
The invention belongs to the electric power electrical apparatus field, belong to lightning surge safeguard field more specifically.
Technical background
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.
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 owing to not shutting down look-at-me, even so when regularly detecting, 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, at the just possible output alarm signal of device failure, can not predict 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.
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 " that is proposed by me (application number was authorized on June 6th, 200720177057.4,2008) proposed a solution for the problems referred to above.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 and a kind ofly realize the device of the aging or deterioration condition of online detection Surge Protector based on gathering the surge suppression device infrared signal.
The technical scheme that the present invention solves the problems of the technologies described above is: the on-line measuring device of Surge Protector of the present invention; comprise infrared detection unit (1), conversion of signals transmission unit (2) and data analysis unit (3); the receive direction of described infrared detection unit (1) is towards surge suppression device (4); described infrared detection unit (1) is by being connected with conversion of signals transmission unit (2), and described conversion of signals transmission unit (2) is connected with data analysis unit (3).
Described infrared detection unit (1) and the electric not conducting of surge suppression device (4).
Described conversion of signals transmission unit (2) comprises A/D change-over circuit and circuit for transmitting digital signals, and conversion of signals transmission unit (2) is connected with bus system or multiple-way system mode with transmission channel (9) between the data analysis unit (3), or connects by network.
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 various relations among infrared ray characteristic, surge current size and characteristic, the Surge Protector damaged condition three.
Described surge suppression device (4) is to be used for constituting Surge Protector and under the surge current effect or produce the device of infrared ray characteristic variations under the situation of self deterioration, damage.
Described data analysis unit (3) is the integrated circuit according to set Data Analysis Model operation.
A conversion of signals transmission unit (2) can connect one or more infrared detection unit (1), and a data analysis unit (3) can connect one or more conversion of signals transmission units (2), and data analysis unit (3) can insert private or internet.
Described conversion of signals transmission unit (2) is integrated in one with detection means (1).
Described conversion of signals transmission unit (2) is 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, effectively 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, caused 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, the state in can detection 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 avoided the intervention of metering circuit to make the work of class signal Surge Protector the new loss of signal and the problem of trouble spot occur.
Seven, a data analysis unit (3) can connect a plurality of conversion of signals transmission units and a plurality of infrared detection unit (1) simultaneously, improved treatment effeciency, simultaneously, data analysis unit (3) inserts private or remote real-time monitoring is realized in the internet, 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
Fig. 3 invents the principle schematic of another embodiment
Embodiment
Discuss embodiment below in conjunction with drawings and Examples
As Fig. 1-3,1st, infrared detection 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, the 7th, special net or internet, 9 transmission channels.
The present invention relates to a kind of device that can realize the online detection of Surge Protector.Data analysis unit 3 realizes judging by the infrared ray characteristic that detects the Surge Protector surge suppression device damaged condition of the state and the surge suppression device of surge current by infrared ray characteristic, surge current size and the characteristic of setting up the Surge Protector surge suppression device, the relational model between the Surge Protector damaged condition three.
When having electric current to pass through on the surge suppression device, according to Joule law as can be known: the temperature of surge suppression device self must have rising to a certain degree.Because temperature is higher than the equal outwards infrared radiation of the object of absolute zero, temperature is high more, and infra-red intensity is strong more.Hence one can see that: surge suppression device constantly to around the infrared ray that do not wait of radiation intensity.Infra-red ray detection device passes to the data processing unit Treatment Analysis to detected surge suppression device to the information of extraradial infra-red intensity, thereby draws the status information of corresponding Surge Protector.
Simultaneously: the size and the waveform of the surge current that passes through on the infrared ray characteristic of surge suppression device and the device have corresponding relation; According to above-mentioned experiment, set up the relational model between inner surge suppression device (4) the infrared ray characteristic of Surge Protector (6), surge current waveform, Surge Protector (6) the damaged condition three, with establishment algorithm and database program, the input computing machine; Afterwards, the infrared ray characteristic signals that data analysis unit (3) will be sent here by conversion of signals transmission unit (2) compare with the data model of having set up, and draw the conclusions such as damaged condition of type, source, size and the surge suppression device (4) of the surge current that surge suppression device (4) bears.
In sum; as long as set up the relational model between the infrared ray characteristic, surge current waveform, Surge Protector damaged condition three of Surge Protector (6) internal components, just can realize judging the damaged condition of the state and the surge suppression device (4) of surge current with the method for the infrared ray characteristic that detects Surge Protector (6) internal components.
For realizing above-mentioned thinking, can adopt following scheme to realize:
The on-line measuring device of Surge Protector of the present invention; comprise infrared detection unit (1), conversion of signals transmission unit (2) and data analysis unit (3); described infrared detection unit (1) is arranged in the infrared signal coverage of surge suppression device (4); described infrared detection 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).
Infrared detection unit (1) detects infrared signal and draws the electric signal of surge suppression device (4), by conversion of signals transmission unit (2) it is transferred to data analysis unit (3), data analysis unit (3) compares the infrared ray characteristic of surge suppression device (4) with the data model of having set up, to judge and to show the damaged condition of type, source, size and the surge suppression device (4) of surge current.Data analysis unit (3) can realize that the network of the teleprocessing and the information of detection is shared by network.
Described infrared detection unit (1) and surge suppression device (4) are in separately in the separate space, are the electrical isolation state, make infrared detection unit (1) reduce the damage that is subjected to surge current, long service life.
Surge suppression device (4) is meant device or its combinations such as voltage dependent resistor (VDR), gas-discharge tube, TVS, semiconductor discharge tube, inductance, resistance, also comprises other and can be used to make the device of Surge Protector or their combination.
Conversion of signals transmission unit (2) also can be integrated in one with detection means (1), has reduced the volume of device, has improved the intensification degree.
Described data analysis unit (3) is the integrated circuit according to set Data Analysis Model operation; it is the algorithm that comprises based on the various relations between infrared ray characteristic variations, surge current size and characteristic, the Surge Protector damaged condition three, and can be according to the integrated circuit of above-mentioned algorithm operation calculating.
Infrared detection unit (1) is installed on the infrared signal overlay area of surge suppression device (4), and infrared detection unit (1) gathers the variable signal of surge suppression device (4) infrared ray characteristic before and after surge takes place or under the failure condition; Its particular location is according to the calorific capacity of surge suppression device (4), and it is fixed also to come according to the ability of the thermoinduction of infrared detection unit simultaneously, as long as can detect the infrared ray characteristic that surge suppression device (4) sends effectively; Infrared detection unit (1) be can continuous coverage infrared ray simulated behavior amount device, generally adopt infrared ray sensor.
Conversion of signals transmission unit (2) comprises A/D change-over circuit and circuit for transmitting digital signals; The electric signal that infrared detection unit (1) collects is delivered to conversion of signals transmission unit (2) by transmission line (5), conversion of signals transmission unit (2) provides power supply for infrared detection unit (1) on the one hand, on the other hand this signal is carried out the A/D conversion, become digital signal, and the bus mode of passing through digital signal is transmitted, transmit it in the computing machine, promptly be transferred to data analysis unit (3), in addition, also with the address code information of Surge Protector (6), switching value and other switching value information transmission that surge suppression device (4) heat is threaded off are given data analysis unit (3);
Transmission channel (9) 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, pass through network, be delivered in any one computing machine that can connect contact, 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 infrared detection unit (1) sends simultaneously, helps to improve the efficient that signal transforms and transmits like this; And the next information of a data analysis unit (3) a plurality of conversion of signals transmission units of analyzing and processing (2) transmission simultaneously, realize the Centralized Monitoring processing, 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 detection system; Data analysis unit in the internet (3) constitutes a lightning protection detection system more widely; concluding data or raw data realize that by network remote detection is reported to the police 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 (9)

1. the on-line measuring device of a Surge Protector; comprise infrared detection unit (1), conversion of signals transmission unit (2) and data analysis unit (3); it is characterized in that: the receive direction of described infrared detection unit (1) is towards surge suppression device (4); described infrared detection 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 is characterized in that: described infrared detection unit (1) and surge suppression device (4) electrical isolation.
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; conversion of signals transmission unit (2) is connected with bus system or multiple-way system mode with transmission channel (9) between the data analysis unit (3), or connects 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 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 various relations among infrared ray characteristic, 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 surge suppression device (4) is the device that is used for constituting Surge Protector and produces the infrared ray characteristic variations under the situation of self deterioration under the surge current effect or damage.
6. 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.
7. 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 infrared detection unit (1); A data analysis unit (3) can connect one or more conversion of signals transmission units (2), and data analysis unit (3) can insert private or internet.
8. the on-line measuring device of Surge Protector according to claim 1, it is characterized in that: described conversion of signals transmission unit (2) also can be integrated in one with detection means (1).
9. 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).
CN2009100695936A 2009-07-06 2009-07-06 Online detection device of surge protective device Pending CN101943726A (en)

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CN2009100695936A CN101943726A (en) 2009-07-06 2009-07-06 Online detection device of surge protective device

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Application Number Priority Date Filing Date Title
CN2009100695936A CN101943726A (en) 2009-07-06 2009-07-06 Online detection device of surge protective device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103852659A (en) * 2012-12-05 2014-06-11 孙巍巍 Novel SPD on-line detection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103852659A (en) * 2012-12-05 2014-06-11 孙巍巍 Novel SPD on-line detection device

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Application publication date: 20110112