CN101866522A - Anti-theft alarm for cable - Google Patents
Anti-theft alarm for cable Download PDFInfo
- Publication number
- CN101866522A CN101866522A CN 201010183846 CN201010183846A CN101866522A CN 101866522 A CN101866522 A CN 101866522A CN 201010183846 CN201010183846 CN 201010183846 CN 201010183846 A CN201010183846 A CN 201010183846A CN 101866522 A CN101866522 A CN 101866522A
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- cable
- contact
- water sensor
- pair
- loudspeaker
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Abstract
The invention discloses an anti-theft alarm for a cable, comprising a water sensor; when a contactor and/or a contactor is switched off, a pair of normally closed contacts are synchronously switched off, the contactor and the contactor of the water sensor are respectively connected with a pair of jumping wires from two audio cables; the pair of normally closed contactors of the water sensor are connected with a speaker Y in parallel, the positive electrode of a 5V direct current power supply is connected with one end of the speaker Y after being connected with a resistor R with resistance of 10ohm in series, and the negative electrode of the 5V direct current power supply is connected with the other end of the speaker Y. When the cable is stolen and cut off, the speaker gives an alarm. The invention has the characteristics of simple structure, high practicability and high reliability.
Description
Technical field
The present invention relates to the electrical type burglar alarm, send the alarm of chimes of doom when being cut off out especially for voice-frequency cable.
Background technology
Lao Xiong well centralized control center is the transformer station nearest apart from Panzhihua Power Bureau.It is the signal centre of Panzhihua Power Bureau.Except optical fiber, also have two voice-frequency cables to be connected between Lao Xiong well transformer station and the power administration's communications equipment room, because these two voice-frequency cables are to lay in built on stilts mode.Steal cable so just for some lawless person and brought opportunity.Since the second half year in 2008, continuous three times the lawless person has broken apart by chopping this two voice-frequency cables and stealing smoothly on the mountain behind the Lao Xiong well.The wildness of its behavior, the aggressiveness of bluster are to the stage that can not be added with.If communications facility is destroyed for a long time, tend to cause a series of chain reactions such as electric power supply interruption, not only cause serious economy loss to electric power enterprise, destroyed for the electricity consumption order, main is that power network safety operation is caused fatal threat.
Summary of the invention
The purpose of this invention is to provide a kind of anti-theft alarm for cable, the one, cable is lancinated, the warning of promptly sounding.
The object of the present invention is achieved like this: a kind of anti-theft alarm for cable, comprise water sensor: when contact and/or contact disconnect, a pair of normally closed contact disconnects simultaneously, and the contact of water sensor is connected respectively at a pair of wire jumper that takes out from two voice-frequency cables with the contact; The a pair of normally closed contact of water sensor is in parallel with loudspeaker Y, and the 5V dc power anode is connected to loudspeaker Y one end after being connected in series the resistance R that resistance is 10 Europe, and the 5V dc power cathode is connected to the loudspeaker Y other end.
Also be connected with gauge tap K between the line of above-mentioned resistance R and loudspeaker Y.
The present invention be utilize waste and old water sensor (Yada Electronics Co., Ltd., Heyuan produces, and can buy, or pass through network address:
Http:// www.hyyada.com/productInfo.asp? id=146Purchase) break-make principle is made.
The invention has the beneficial effects as follows:
1, this anti-theft alarm for cable only need just can be monitored external cable through simple setting, as long as cable is cut, this equipment can send sound and light alarm immediately, for the automatic protection of cable provides conscientiously, effective method.As the responding of ensuring public security is timely, the lawless person can also be arrested on electric pole.
2, simple in structure, the low cost of manufacture of the present invention, through facts have proved, this alarm has the reliability height, the advantage such as timely of reporting to the police, and is applied in the reality, will be for ensureing that power network safety operation contribute.
Description of drawings
Fig. 1 is circuit diagram of the present invention (cable just often);
Fig. 2 is a cable shown in Figure 1 circuit diagram when disconnecting.
Embodiment
Fig. 1, Fig. 2 illustrate, and the present invention includes water sensor 5: when contact 1 and/or contact 2 disconnected, a pair of normally closed contact 3,4 disconnected simultaneously, and the contact 1 of water sensor 5 is connected with a pair of wire jumper that takes out from two voice-frequency cables respectively with contact 2; The a pair of normally closed contact 3,4 of water sensor is all in parallel with loudspeaker Y, and the 5V dc power anode is connected to loudspeaker Y one end after being connected in series the resistance R that resistance is 10 Europe, and the 5V dc power cathode is connected to the loudspeaker Y other end.Also be connected with gauge tap K between the line of resistance R and loudspeaker Y.In use, gauge tap K is in closure state.
During making, from voice-frequency cable, get a pair of wire jumper 6,7, and the two is connected to the contact 1 and the contact 2 of water sensor 5 respectively.When cable just often, the contact 3 of water sensor and contact 4 short circuits, electric current forms the loop through the direction shown in Fig. 1 arrow, because without the loop at doorbell place, so doorbell does not ring.
Referring to Fig. 2, when cable was broken apart by chopping, the contact 1 of cable and sensor or contact 2 disconnected, and perhaps, cable and contact 1 and contact 2 all disconnect, and contact 3 disconnects with contact 4, and electric current forms the loop through the direction shown in Fig. 2 arrow.Because electric current has passed through loudspeaker and has triggered the loudspeaker action, thereby sends chimes of doom.This burglar alarm can also be applied to family, automobile, safety cabinet, warehouse etc. except being applied to cable theft-prevention.Certainly this need increase a door status switch.
This burglar alarm only needs two d-c transformers that are respectively 12V (working power of water sensor) and 5V, doorbell and switch and a resistance that is approximately about 10 Europe.These material costs are not high, and bought easily.Water sensor removes from waste and old equipment.
In addition, water sensor can adopt relay (JT3 type DC relay) to substitute, and a pair of wire jumper that is about to voice-frequency cable is controlled with a relay J circuit respectively; Can adopt also that " (Li Zhongshi writes the selected handbook of domestic electronic alarm, scientific and technical literature publishing house publishes, September in 1993 the 1st edition) " the simple damage preventing alarm device " among the P117 substitutes: alarming line is in a single day destroyed, triode BG1 ends, feedback signal is added to another triode BG2 base stage, drives warning circuit shown in Figure 1 again and sends chimes of doom.
Claims (2)
1. anti-theft alarm for cable, comprise, water sensor (5): when contact (1) and/or contact (2) disconnects, a pair of normally closed contact (3,4) disconnects simultaneously, it is characterized in that: the contact (1) of described water sensor (5) is connected with a pair of wire jumper that takes out from two voice-frequency cables respectively with contact (2); The a pair of normally closed contact of water sensor (3,4) is all in parallel with loudspeaker Y, and the 5V dc power anode is connected to loudspeaker Y one end after being connected in series the resistance R that resistance is 10 Europe, and the 5V dc power cathode is connected to the loudspeaker Y other end.
2. according to the described anti-theft alarm for cable of claim 1, it is characterized in that: also be connected with gauge tap K between the line of described resistance R and loudspeaker Y.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010183846 CN101866522A (en) | 2010-05-26 | 2010-05-26 | Anti-theft alarm for cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010183846 CN101866522A (en) | 2010-05-26 | 2010-05-26 | Anti-theft alarm for cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101866522A true CN101866522A (en) | 2010-10-20 |
Family
ID=42958230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010183846 Pending CN101866522A (en) | 2010-05-26 | 2010-05-26 | Anti-theft alarm for cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101866522A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014198131A1 (en) * | 2013-06-09 | 2014-12-18 | 北汽福田汽车股份有限公司 | Part-removal-prevention alarm device and automobile with same |
| CN106409419A (en) * | 2016-08-31 | 2017-02-15 | 赵松和 | Cable anti-theft method and anti-theft cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201060523Y (en) * | 2007-06-07 | 2008-05-14 | 刘心妍 | Power line anti-theft alarm |
| CN101436335A (en) * | 2007-11-12 | 2009-05-20 | 张明诚 | Anti-theft equipment for battery |
| CN201345145Y (en) * | 2009-01-08 | 2009-11-11 | 吴汉民 | Anti-theft device for accumulator |
| CN201698538U (en) * | 2010-05-26 | 2011-01-05 | 攀枝花电业局 | Cable burglar alarm |
-
2010
- 2010-05-26 CN CN 201010183846 patent/CN101866522A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201060523Y (en) * | 2007-06-07 | 2008-05-14 | 刘心妍 | Power line anti-theft alarm |
| CN101436335A (en) * | 2007-11-12 | 2009-05-20 | 张明诚 | Anti-theft equipment for battery |
| CN201345145Y (en) * | 2009-01-08 | 2009-11-11 | 吴汉民 | Anti-theft device for accumulator |
| CN201698538U (en) * | 2010-05-26 | 2011-01-05 | 攀枝花电业局 | Cable burglar alarm |
Non-Patent Citations (1)
| Title |
|---|
| 《电子制作》 20091231 刘叶茂 电缆防盗报警装置的制作 19 1-2 , 第01期 2 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014198131A1 (en) * | 2013-06-09 | 2014-12-18 | 北汽福田汽车股份有限公司 | Part-removal-prevention alarm device and automobile with same |
| CN104228674A (en) * | 2013-06-09 | 2014-12-24 | 北汽福田汽车股份有限公司 | Anti-disassembling warning device and automobile with same |
| CN106409419A (en) * | 2016-08-31 | 2017-02-15 | 赵松和 | Cable anti-theft method and anti-theft cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101020 |