CN201255757Y - Electric cable break detecting alarm - Google Patents
Electric cable break detecting alarm Download PDFInfo
- Publication number
- CN201255757Y CN201255757Y CNU2008200276191U CN200820027619U CN201255757Y CN 201255757 Y CN201255757 Y CN 201255757Y CN U2008200276191 U CNU2008200276191 U CN U2008200276191U CN 200820027619 U CN200820027619 U CN 200820027619U CN 201255757 Y CN201255757 Y CN 201255757Y
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Abstract
The utility model provides a novel cable disconnection detection alarm device, comprising a signal generator, a signal detection module and a plurality of signal coupling module, wherein at least the output end of the signal generator and the core wire A of a cable L are serially connected with a signal coupling module which input end is connected with the output end of a second signal coupling module. The novel cable disconnection detection alarm device is characterized by further comprising a transmission medium module and a voltage detection module, wherein the input end of the voltage detection module is connected with the core wire of the cable L, the core wire A is connected with the input end of the second signal coupling module via the transmission medium module, therefore, via the participation of the cable L, the signal coupling modules and the transmission medium module, the signal generator and the signal detection module form a signal channel, and the detection signal generated by the signal generator is output via the cable, the signal coupling modules and the transmission medium model to the signal detection module, to be judged and compared to output alarm state signal. The novel cable disconnection detection alarm device has simple and reliable structure, and excellent performance.
Description
Technical field
The utility model provides a kind of cable wire break detection alarming device, belongs to power cable anti-thefting monitoring technical field.
Background technology
The communication base station cable often breaks because of stolen at present, because the operator on duty can not judge accurately that having a power failure still is that cable is stolen, often start reserve battery, cause the reserve battery electric weight to exhaust, if there is not emergency generator, then cause whole communication base station paralysis, cause heavy economic losses and baneful influence.Existing cable anti-theft alarm circuit all adopts the power line carrier, PLC function, makes the circuit complexity, the cost height, and reliability is low.
The utility model content
The purpose of this utility model provides that a kind of to satisfy the demand, accurately judge be to have a power failure or cable break, and the cable wire break detection alarming device that can monitor cable break.Its technical scheme is:
Comprise signal generator, signal detection module and a plurality of signal coupling module, wherein between the heart yearn A of the output terminal of signal generator and cable L, be connected in series the first signal coupling module at least, the output terminal of the input termination secondary signal coupling module of signal detection module, it is characterized in that: set up transmission medium module and voltage detection module, the heart yearn of the input terminated cable L of voltage detection module wherein, heart yearn A connects the input end of secondary signal coupling module through the transmission medium module, like this through cable L, the participation of a plurality of signal coupling modules and transmission medium module just constitutes a signal paths between signal generator and the signal detection module.
Described cable wire break detection alarming device, cable L is provided with armor, and the transmission medium module comprises the 3rd signal coupling module, and heart yearn A connects the input end of secondary signal coupling module successively through the armor of the 3rd signal coupling module, cable L.
Described cable wire break detection alarming device, cable L does not have armor, and the transmission medium module is a earth, and the input end of the output terminal of heart yearn A and secondary signal coupling module all connects the earth.
Described cable wire break detection alarming device, cable L does not have armor, and the transmission medium module comprises the 3rd signal coupling module, and heart yearn A meets another heart yearn B of cable L through the 3rd signal coupling module.
Described cable wire break detection alarming device, the 3rd signal coupling module adopts high-power resistance or high-voltage capacitance or high reactance inductance.
Described cable wire break detection alarming device, signal generator can directly be a direct supply.
Described cable wire break detection alarming device, the first signal coupling module comprises the resistor voltage divider circuit and the capacitor filter in parallel of diode D1, series connection, the output terminating diode D1 positive pole of signal generator E wherein, the negative pole of diode D1 respectively through capacitor C 1 and diode D2 ground connection, and meet heart yearn A through resistance R 1 and resistance R 2 successively, diode D2 plus earth, between resistance R 1 and the resistance R 2 through capacitor C 2 ground connection.
Described cable wire break detection alarming device, the secondary signal coupling module comprises the resistor voltage divider circuit of diode D3, resistance R 3-4 composition and the capacitor filter that capacitor C 3-5 forms, wherein the output terminal of transmission medium module connects diode D3 positive pole through resistance R 3 and resistance R 4 successively, diode D3 negative pole connects the input end of signal detection module, between resistance R 3 and the resistance R 4 through capacitor C 3 ground connection, between resistance R 4 and the diode D3 positive pole through C4 ground connection.
Described cable wire break detection alarming device, signal detection module comprise capacitor C 5, resistance R 5 and CPU, and wherein the output terminal of secondary signal coupling module is respectively through capacitor C 5 and resistance R 5 ground connection and insert CPU.
Described cable wire break detection alarming device, voltage detection module comprises resistance R 6-8, optical coupling isolator G and CPU, wherein cable L heart yearn connects another heart yearn of cable L successively through resistance R 6, optical coupling isolator G and resistance R 7, and power supply meets CPU respectively and through resistance R 8 ground connection through optical coupling isolator G.
Its principle of work is: utilize voltage detection module detection streamer voltage signal constantly, optical coupling isolator G output high level judges that then cable is normal when cable has voltage, does not start the work of disconnection signal detection circuit this moment; Optical coupling isolator G output low level when cable does not have voltage, at this moment start the work of disconnection signal detection circuit: utilize signal generator, the first signal coupling module, heart yearn A, the transmission medium module, the secondary signal coupling module, signal detection module constitutes a signal path, this signal path needs only cable and does not have broken string closed under power down mode, the signal that signal generator produces is successively through cable, the participation of a plurality of signal coupling module transmission medium modules, output to signal detection module, judge comparison by it, the output alarm status signal, when cable is not disconnected, signal path from the signal generator to the signal detection module is communicated with normal, signal detection module output high level; When cable break, will the shutoff signal generator to the signal path of signal detection module, the signal detection module output low level.
The utility model compared with prior art has following advantage:
1, can effectively discern have a power failure or cable stolen, utilize the cable own resource that himself is carried out anti-thefting monitoring to greatest extent, reduce cost to greatest extent with this, simple and reliable for structure, function admirable;
2, the earth-free sheathed cable of various armourings not only can be applicable to, and the armouring earthing cable can be applicable to, and various common service cable;
3, reliability is higher: by increasing the monitoring power supply as one of criterion of whether reporting to the police, the accuracy rate of on-line monitoring and reliability are greatly improved.
4, easy construction: a lot of situations need not to insert signal coupler, and are simple to operate.
Description of drawings
Fig. 1 is a principle of work block diagram of the present utility model;
Fig. 2 is the circuit diagram of the utility model embodiment 1;
Fig. 3 is the circuit diagram of the utility model embodiment 2;
Fig. 4 is the circuit diagram of the utility model embodiment 3.
Among the figure: 1,2,4 signal coupling modules 3, armor A, B heart yearn
Embodiment
In principle of work block diagram shown in Figure 1: between the heart yearn A of the output terminal of signal generator and cable L, be connected in series the first signal coupling module 1, heart yearn A connects the input end of secondary signal coupling module 2 through the transmission medium module, the input end of the output termination signal detection module of secondary signal coupling module 2, through the participation of cable L, a plurality of signal coupling module and transmission medium module, just constitute a signal paths between signal generator and the signal detection module like this.In the embodiment shown in Figure 2: cable L is provided with armor 3, and heart yearn A is the heart yearn of cable L.Signal generator E adopts direct supply, its positive pole connects diode D1 positive pole, negative pole respectively through capacitor C 1 and diode D2 ground connection, and meet heart yearn A through resistance R 1 and resistance R 2 successively, diode D2 plus earth, the junction of resistance R 1 and resistance R 2 is through capacitor C 2 ground connection; The 3rd signal coupling module 4 adopts high-power resistance R, is serially connected with between the armor 3 of heart yearn A and cable L; Armor 3 also inserts CPU through resistance R 3, resistance R 4 and diode D3 negative pole successively, the junction of resistance R 3 and resistance R 4 is through capacitor C 3 ground connection, the junction of resistance R 4 and diode D3 is through C4 ground connection, and diode D3 negative pole warp and the capacitor C 5 and resistance R 5 ground connection that connect are relatively judged alerting signal by CPU; Another heart yearn that the heart yearn of cable L meets cable L through input end and the resistance R 7 of resistance R 6, optical coupling isolator G successively, power supply meets CPU respectively and through resistance R 8 ground connection through the output terminal of optical coupling isolator G.
Embodiment 3 is basically with embodiment 1, and just cable L does not have armor 3, and heart yearn A is the heart yearn of cable L, and the 3rd signal coupling module 4 is a earth, heart yearn A to the termination the earth, the input end of secondary signal coupling module 2 also connects the earth, principle of work is the same.
Claims (10)
1, a kind of cable wire break detection alarming device, comprise signal generator, signal detection module and a plurality of signal coupling module, wherein between the heart yearn A of the output terminal of signal generator and cable L, be connected in series the first signal coupling module (1) at least, the output terminal of the input termination secondary signal coupling module (2) of signal detection module, it is characterized in that: set up transmission medium module and voltage detection module, the heart yearn of the input terminated cable L of voltage detection module wherein, heart yearn A connects the input end of secondary signal coupling module (2) through the transmission medium module, like this through cable L, the participation of a plurality of signal coupling modules and transmission medium module just constitutes a signal paths between signal generator and the signal detection module.
2, cable wire break detection alarming device as claimed in claim 1, it is characterized in that: cable L is provided with armor (3), the transmission medium module comprises the 3rd signal coupling module (4), and heart yearn A connects the input end of secondary signal coupling module (2) successively through the armor (3) of the 3rd signal coupling module (4), cable L.
3, cable wire break detection alarming device as claimed in claim 1 is characterized in that: cable L does not have armor (3), and the transmission medium module is a earth, and the input end of the output terminal of heart yearn A and secondary signal coupling module (2) all connects the earth.
4, cable wire break detection alarming device as claimed in claim 1 is characterized in that: cable L does not have armor (3), and the transmission medium module comprises the 3rd signal coupling module (4), and heart yearn A meets another heart yearn B of cable L through the 3rd signal coupling module (4).
5, as claim 2 or 4 described cable wire break detection alarming devices, it is characterized in that: the 3rd signal coupling module (4) adopts high-power resistance or high-voltage capacitance or high reactance inductance.
6, cable break alarm sniffer as claimed in claim 1 is characterized in that: signal generator is a direct supply.
7, cable wire break detection alarming device as claimed in claim 1, it is characterized in that: the first signal coupling module (1) comprises the resistor voltage divider circuit and the capacitor filter in parallel of diode D1, series connection, the output terminating diode D1 positive pole of signal generator E wherein, the negative pole of diode D1 respectively through capacitor C 1 and diode D2 ground connection, and meet heart yearn A through resistance R 1 and resistance R 2 successively, diode D2 plus earth, between resistance R 1 and the resistance R 2 through capacitor C 2 ground connection.
8, cable wire break detection alarming device as claimed in claim 1, it is characterized in that: secondary signal coupling module (2) comprises the resistor voltage divider circuit of diode D3, resistance R 3-4 composition and the capacitor filter that capacitor C 3-5 forms, wherein the output terminal of transmission medium module connects diode D3 positive pole through resistance R 3 and resistance R 4 successively, diode D3 negative pole connects the input end of signal detection module, between resistance R 3 and the resistance R 4 through capacitor C 3 ground connection, between resistance R 4 and the diode D3 positive pole through C4 ground connection.
9, cable wire break detection alarming device as claimed in claim 1 is characterized in that: signal detection module comprises capacitor C 5, resistance R 5 and CPU, and wherein the output terminal of secondary signal coupling module (2) is respectively through capacitor C 5 and resistance R 5 ground connection and insert CPU.
10, cable wire break detection alarming device as claimed in claim 1, it is characterized in that: voltage detection module comprises resistance R 6-8, optical coupling isolator G and CPU, wherein cable L heart yearn connects another heart yearn of cable L successively through resistance R 6, optical coupling isolator G and resistance R 7, and power supply meets CPU respectively and through resistance R 8 ground connection through optical coupling isolator G.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200276191U CN201255757Y (en) | 2008-08-29 | 2008-08-29 | Electric cable break detecting alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200276191U CN201255757Y (en) | 2008-08-29 | 2008-08-29 | Electric cable break detecting alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201255757Y true CN201255757Y (en) | 2009-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200276191U Expired - Lifetime CN201255757Y (en) | 2008-08-29 | 2008-08-29 | Electric cable break detecting alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201255757Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408581B (en) * | 2007-09-09 | 2011-08-24 | 山东信通电器有限公司 | Cable wire break detection alarming device |
| CN103018619A (en) * | 2012-11-19 | 2013-04-03 | 宁波舜利高压开关科技有限公司 | Detection circuit of open circuit of operating mechanism opening coil and detection method thereof |
| CN103080760A (en) * | 2010-11-02 | 2013-05-01 | 船井电机株式会社 | Led lighting device and cable connection detection device |
| CN103201641A (en) * | 2010-11-09 | 2013-07-10 | Abb研究有限公司 | Cable fatigue monitor and method thereof |
| CN103293436A (en) * | 2013-06-19 | 2013-09-11 | 四国电线（东莞）有限公司 | Manual cable tester |
| CN103646488A (en) * | 2013-11-21 | 2014-03-19 | 广东电网公司惠州供电局 | An armored cable monitoring system and a method |
-
2008
- 2008-08-29 CN CNU2008200276191U patent/CN201255757Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408581B (en) * | 2007-09-09 | 2011-08-24 | 山东信通电器有限公司 | Cable wire break detection alarming device |
| CN103080760A (en) * | 2010-11-02 | 2013-05-01 | 船井电机株式会社 | Led lighting device and cable connection detection device |
| CN103201641A (en) * | 2010-11-09 | 2013-07-10 | Abb研究有限公司 | Cable fatigue monitor and method thereof |
| CN103201641B (en) * | 2010-11-09 | 2015-05-20 | Abb研究有限公司 | Cable fatigue monitor and method thereof |
| US9134358B2 (en) | 2010-11-09 | 2015-09-15 | Abb Research Ltd. | Cable fatigue monitor and method thereof |
| CN103018619A (en) * | 2012-11-19 | 2013-04-03 | 宁波舜利高压开关科技有限公司 | Detection circuit of open circuit of operating mechanism opening coil and detection method thereof |
| CN103293436A (en) * | 2013-06-19 | 2013-09-11 | 四国电线（东莞）有限公司 | Manual cable tester |
| CN103293436B (en) * | 2013-06-19 | 2015-08-12 | 四国电线（东莞）有限公司 | Manual cable tester |
| CN103646488A (en) * | 2013-11-21 | 2014-03-19 | 广东电网公司惠州供电局 | An armored cable monitoring system and a method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090610 Effective date of abandoning: 20080829 |