CN202084132U - Electrical fire monitoring system - Google Patents

Electrical fire monitoring system Download PDF

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Publication number
CN202084132U
CN202084132U CN2011201549906U CN201120154990U CN202084132U CN 202084132 U CN202084132 U CN 202084132U CN 2011201549906 U CN2011201549906 U CN 2011201549906U CN 201120154990 U CN201120154990 U CN 201120154990U CN 202084132 U CN202084132 U CN 202084132U
Authority
CN
China
Prior art keywords
monitoring system
sequence transformer
fire monitoring
described zero
electric fire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011201549906U
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Chinese (zh)
Inventor
罗艳
Original Assignee
罗艳
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 罗艳 filed Critical 罗艳
Priority to CN2011201549906U priority Critical patent/CN202084132U/en
Application granted granted Critical
Publication of CN202084132U publication Critical patent/CN202084132U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an electrical fire monitoring system, comprising a zero sequence mutual inductor and a central monitoring host, and characterized in that the zero sequence mutual inductor is directly connected to the central monitoring host through two buses, the zero sequence mutual inductor includes a light current acquisition unit, an A/D converter, a CPU and a control circuit which are electrically connected in sequence. According to the utility model, the zero sequence mutual inductor is directly connected to the central monitoring host through two buses, therefore the intermediate link of a monitor is eliminated, erroneous reports and mistaken reports caused by the magnetic field interference with leads and lead aging are avoided, the anti-interference capability is enhanced, and the installation space is saved.

Description

A kind of electric fire monitoring system
Technical field
The utility model relates to a kind of safety defense monitoring system, more specifically to a kind of electric fire monitoring system.
Background technology
Traditional electric fire monitoring system is normally gathered weak current by zero-sequence transformer and is sent watch-dog to through lead, watch-dog amplifies, changes, analyzes, contrasts the back to weak current data-signal is sent to the CSRC main frame, thereby reaches the purpose to electric fire disaster monitoring.
But this mode has following defective:
One, the lead that zero-sequence transformer is connected with watch-dog often is subjected to magnetic interference, and perhaps lead is aging, and reasons such as poor contact of contacts all can cause the current distortion of transmission, and then cause reporting by mistake, misrepresenting deliberately.
They are two years old, in the work progress that the conventional electrical fire monitoring system is installed, the installation of watch-dog need or be fixed in full position at the body of wall fluting, bring very big inconvenience and increased cost to construction, and corresponding a plurality of zero-sequence transformer of watch-dog, in case watch-dog damages, its pairing whole zone will lose monitoring, have very big hidden danger.
Thus, it is strong that we are badly in need of a kind of antijamming capability, and good stability is installed electric fire monitoring system easily.
Summary of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art and problem, provides a kind of antijamming capability strong, and good stability is installed electric fire monitoring system easily.
The technical solution of the utility model is as follows:
A kind of electric fire monitoring system, comprise zero-sequence transformer and CSRC main frame, it is characterized in that: described zero-sequence transformer directly is connected with the CSRC main frame by two buses, and described zero-sequence transformer comprises light current collecting unit, A/D converter, CPU, the control circuit that is electrically connected successively.
As prioritization scheme of the present utility model, described zero-sequence transformer also comprises amplitude limiter circuit, amplifying circuit, rectification circuit.
As another kind of prioritization scheme of the present utility model, described zero-sequence transformer also comprises alarm unit.
As another kind of prioritization scheme of the present utility model, described zero-sequence transformer also comprises electrical apparatus release, reset circuit.
As another kind of prioritization scheme of the present utility model, described zero-sequence transformer also comprises communication module.
As another kind of prioritization scheme of the present utility model, described zero-sequence transformer also comprises display circuit, LED screen, temperature probe unit.
The utility model is compared with the conventional electrical fire monitoring system has following technique effect:
One, the utility model directly is connected with the CSRC main frame by two buses by zero-sequence transformer, removed the lead that zero-sequence transformer is connected with watch-dog, in zero-sequence transformer, realize flowing to the conversion of data-signal by light current, on the one hand, removing lead has avoided being subjected to wrong report that reasons such as magnetic interference, lead are aging cause, misrepresenting deliberately because of lead, strengthened antijamming capability, on the other hand, the connection of minimizing circuit has been avoided because of the wrong report that poor contact of contacts causes, has not been reported, save cost, strengthened stability.
They are two years old, the utility model directly is connected with the CSRC main frame by two buses by zero-sequence transformer, removed this intermediate link of watch-dog, in the work progress that electric fire monitoring system is installed, simplified operational procedure, saved installing space, changed the situation of the corresponding a plurality of zero-sequence transformer of an original watch-dog simultaneously, in zero-sequence transformer, realize flowing to the conversion of data-signal and directly being sent to main frame, realize point-to-point monitoring, reduced potential safety hazard greatly by light current.
Description of drawings
Fig. 1 is a conventional electrical fire monitoring system block scheme
Fig. 2 is a kind of electric fire monitoring system block scheme of the utility model
Among the figure: 1-CSRC main frame; The 2-watch-dog; The 3-zero-sequence transformer.
Embodiment
Make an explanation below in conjunction with 1,2 pairs of the utility model technology contents of accompanying drawing:
As shown in Figure 1, 2, a kind of electric fire monitoring system, comprise zero-sequence transformer 3 and CSRC main frame 1, it is characterized in that: described zero-sequence transformer 3 directly is connected with CSRC main frame 1 by two buses, and described zero-sequence transformer 3 comprises light current collecting unit, A/D converter, CPU, the control circuit that is electrically connected successively.
As prioritization scheme of the present utility model, described zero-sequence transformer also comprises amplitude limiter circuit, amplifying circuit, rectification circuit; The weak current that the light current collecting unit obtains enters A/D converter again and is converted to data message, effective like this having prevented because of the excessive damage A/D converter of leakage current through amplitude limiter circuit, amplifying circuit, rectification circuit successively.
As another kind of prioritization scheme of the present utility model, described zero-sequence transformer also comprises alarm unit; The weak current that the light current collecting unit obtains is converted to data message and is sent to CPU through A/D converter, CPU analyzes, judges the amplitude that changes, and compare with alarm setting value, when the parameter value that obtains surpasses predefined threshold value of warning, to carry out early warning, the prompting staff keeps a close eye on the work or the malfunction of alarm set point, so that in time take appropriate measures, and the generation of fire preventing in advance or electrical safety accident.
As another kind of prioritization scheme of the present utility model, described zero-sequence transformer also comprises electrical apparatus release, reset circuit; The weak current that the light current collecting unit obtains is converted to data message and is sent to CPU through A/D converter, CPU carries out computing to data message, and when reaching setting valve, control circuit is given an order to electrical apparatus release, electrical apparatus release gets an electric shock and the earth leakage protection effect thereby play at 0.1 second internal cutting off power supply; Work as all clear, reset circuit is given an order to electrical apparatus release and is restored electricity.
As another kind of prioritization scheme of the present utility model, described zero-sequence transformer also comprises communication module; CPU carries out sending to the testing staff through communication module after the computing to data message, realizes remote monitoring.
As another kind of prioritization scheme of the present utility model, described zero-sequence transformer also comprises display circuit, LED screen, temperature probe unit; Light current collecting unit and temperature probe unit are gathered electric current and temperature is converted to data message and is sent to CPU through A/D converter, CPU carries out computing, analysis after display circuit is presented at electrical leakage and temperature on the LED screen in real time to data message, and wherein the LED screen can be replaced by pilot lamp, charactron.

Claims (9)

1. electric fire monitoring system, comprise zero-sequence transformer and CSRC main frame, it is characterized in that: described zero-sequence transformer directly is connected with the CSRC main frame by two buses, and described zero-sequence transformer comprises light current collecting unit, A/D converter, CPU, the control circuit that is electrically connected successively.
2. a kind of electric fire monitoring system according to claim 1 is characterized in that described zero-sequence transformer also comprises amplitude limiter circuit, amplifying circuit, rectification circuit.
3. a kind of electric fire monitoring system according to claim 1 and 2 is characterized in that described zero-sequence transformer also comprises alarm unit.
4. a kind of electric fire monitoring system according to claim 1 and 2 is characterized in that described zero-sequence transformer also comprises electrical apparatus release, reset circuit.
5. a kind of electric fire monitoring system according to claim 3 is characterized in that described zero-sequence transformer also comprises electrical apparatus release, reset circuit.
6. a kind of electric fire monitoring system according to claim 1 and 2 is characterized in that described zero-sequence transformer also comprises communication module.
7. a kind of electric fire monitoring system according to claim 3 is characterized in that described zero-sequence transformer also comprises communication module.
8. a kind of electric fire monitoring system according to claim 4 is characterized in that described zero-sequence transformer also comprises communication module.
9. a kind of electric fire monitoring system according to claim 9 is characterized in that, described zero-sequence transformer also comprises display circuit, LED screen, temperature probe unit.
CN2011201549906U 2011-05-16 2011-05-16 Electrical fire monitoring system Expired - Fee Related CN202084132U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201549906U CN202084132U (en) 2011-05-16 2011-05-16 Electrical fire monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201549906U CN202084132U (en) 2011-05-16 2011-05-16 Electrical fire monitoring system

Publications (1)

Publication Number Publication Date
CN202084132U true CN202084132U (en) 2011-12-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201549906U Expired - Fee Related CN202084132U (en) 2011-05-16 2011-05-16 Electrical fire monitoring system

Country Status (1)

Country Link
CN (1) CN202084132U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102826016A (en) * 2012-08-23 2012-12-19 徐州云泰汽车电器有限公司 Automatic monitoring system for automobile rectifier
CN103308770A (en) * 2013-05-27 2013-09-18 李群生 Network system for power supply line impedance loss type electrical failure fire hazard detector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102826016A (en) * 2012-08-23 2012-12-19 徐州云泰汽车电器有限公司 Automatic monitoring system for automobile rectifier
CN103308770A (en) * 2013-05-27 2013-09-18 李群生 Network system for power supply line impedance loss type electrical failure fire hazard detector

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Guodian Materials Group Logistics Co., Ltd.

Assignor: Luo Yan

Contract record no.: 2012440020191

Denomination of utility model: Electrical fire monitoring system

Granted publication date: 20111221

License type: Exclusive License

Record date: 20120704

DD01 Delivery of document by public notice

Addressee: Luo Yan

Document name: Notification to Pay the Fees

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111221

Termination date: 20160516