CN101853558A - Cable burglar alarm wireless monitoring system - Google Patents
Cable burglar alarm wireless monitoring system Download PDFInfo
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- CN101853558A CN101853558A CN200910010960A CN200910010960A CN101853558A CN 101853558 A CN101853558 A CN 101853558A CN 200910010960 A CN200910010960 A CN 200910010960A CN 200910010960 A CN200910010960 A CN 200910010960A CN 101853558 A CN101853558 A CN 101853558A
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Abstract
The invention provides a cable burglar alarm wireless monitoring system. A 24V direct current power supply signal generator is arranged at the initial end of a cable and is connected with the cable through a relay and a protective circuit II in sequence; a 220V alternating current is connected with a relay coil end; the tail end of the cable is respectively connected with a power supply circuit and a protective circuit I; the protective circuit I is respectively connected with a 1.5V comparison circuit and a 2.5V comparison circuit through an optical coupling transmission circuit; signals output by the 1.5V comparison circuit and the 2.5V comparison circuit are processed by a CPU (Central Processing Unit) and transmitted to an upper computer in a monitoring center through a wireless communication unit; and an alarm device is arranged on the upper computer of the monitoring center. The invention can master the cable condition at any time, send an alarm in time and prevent the stealing behavior. The cable burglar alarm wireless monitoring system consists of the monitoring center and detection equipment installed on the field. The field detection equipment transmits an alarm short message to the upper computer of the monitoring center after detecting cable faults or the breaking of the cable; and the upper computer analyzes the alarm short message and alarms alarm contents to officers in a monitoring room through characters and voice.
Description
Technical field:
The present invention relates to a kind of whether stolen supervisory system of street lamp or other service cables that is mainly used in.
Background technology:
At present, rare along with the copper resource, the copper valency rises steadily, and the phenomenon that some lawless persons steal cable occurred.Usually arrived on-the-spot the tour in order to prevent and treat this phenomenon people in the past, or increased some protective devices, strengthened the damage resistance of cable, and not only wasted lot of manpower and material resources, and fundamentally do not solved the pilferage problem.
Summary of the invention:
The present invention is directed to the above-mentioned deficiency of prior art, provide a kind of and can control the cable situation at any time, in time give the alarm, stop the cable burglar alarm wireless monitoring system of pilferage behavior.
Technical solution of the present invention is: a kind of cable burglar alarm wireless monitoring system, be provided with 24V dc power signal generator at the top of cable, it is connected with cable by relay and holding circuit II successively, and the 220V alternating current is connected with the relay coil end; The end of cable is connected with feed circuit and holding circuit I respectively; the holding circuit I is connected with 1.5V comparator circuit and 2.5V comparator circuit respectively through the optocoupler transmission circuit; 1.5V the signal of comparator circuit and the output of 2.5V comparator circuit is handled the back through CPU and is sent to Surveillance center's host computer by radio communication unit, Surveillance center's host computer is provided with warning device.Described radio communication unit can be GSM short message communication unit.
Described holding circuit I is provided with frequency inductance L1, optocoupler transmission circuit input end A1, the resistance R 3 of series connection, wherein the series circuit of optocoupler transmission circuit input end A1, resistance R 3 respectively with two the forward diode D2 that connect, D4 and backward dioded D1 parallel connection.
Described holding circuit II is provided with resistance R 7, its with the parallel connection of 24V dc power signal generator after the frequency inductance L2 that connects, be added in again on cable live wire L and the zero line N.
Described feed circuit are provided with 15V Switching Power Supply U2 and transformer U3, and the 5V of transformer U3 output gives CPU and 1.5V, 2.5V comparator circuit and the power supply of optocoupler transmission circuit; 15V Switching Power Supply U2 charges the battery, and is other circuit supplies simultaneously.
The present invention is by Surveillance center and be installed to on-the-spot checkout equipment and form.On-the-spot checkout equipment detects that the host computer to Surveillance center sends the alarming short message breath behind cable fault or the cable break, and host computer is reported to the police by literal and voice alarm content after resolving to the Control Room clerical workforce.The cable initiating terminal is installed signal generator, and signal generator is not when cable supplies the 220V alternating current, to cable output 24V dc signal; When cable begins to power, the signal generator direct current signal that can automatically switch, the guard signal generator is not subjected to the 220V affected by high simultaneously.Cable end piece is installed the cable status detection system, and the cable status detection system mainly is made up of detecting unit and GSM communication unit and feed circuit.
Native system should detect low-voltage DC, detects High Level AC Voltage again, and will guarantee that the low-voltage circuit of detection system is not damaged.So at the input end serial connection frequency inductance of detecting unit, frequency inductance requires withstand voltage 250V, about 800 ohm of internal resistances like this for forceful electric power 220V, are equivalent to be connected in series a high-impedance resistors; For low-voltage DC, be equivalent to be connected in series 800 ohm Low ESR resistance, protected back-end circuit.L1 is a frequency inductance, and DC voltage is carried between cable live wire L and the zero line N, constitutes the loop by L1, optocoupler A1 input end, R3, as long as DC voltage is arranged, just has 1,2 pin of several milliamperes of electric currents by A1, and optocoupler output will form voltage on R4.During cable power supply, be the 220V alternating voltage between L, the N, constitute the loop at positive half cycle by L1, optocoupler A1 input end, R3, negative half period constitutes the loop by L1, D1, and the whole cycle of alternating current is all passed through the L1 inductance, has guaranteed that inductance can heating burnout.Exchange positive half cycle and can produce several milliamperes of electric currents in its loop, optocoupler output forms voltage on R4 like this, but negative half period because of the loop without A1, so again R4 go up and form voltage.Voltage on the R4 is delivered to cpu port again after through the comparator circuit of rear end and is detected, and sets the alarm threshold value by comparator circuit.CPU can judge cable status by the signal of port input.
The signal generator that cable top is installed equally also needs perfectly straight flow resistance exchange way to protect.Relay DC24V+ and DC24V-are received in the output of signal generator, are added on cable live wire and the zero line by frequency inductance L2.When cable power supply, L2, R7 form the loop, on R7, only can produce very little pressure drop, can not cause signal generator to damage, simultaneously, the alternating voltage of cable also is added to 220V relay coil end, and relay can cut off the direct current signal of signal generator, guarantees that so more signal generator can not damage.
Description of drawings:
Fig. 1 is a theory diagram of the present invention.
Fig. 2 is the physical circuit figure that is connected with cable top of the present invention.
Fig. 3 is the physical circuit figure that is connected with cable end piece of the present invention.
Embodiment:
Further specify specific embodiments of the invention below in conjunction with accompanying drawing:
Shown in Fig. 1～3: a kind of cable burglar alarm wireless monitoring system, be provided with 24V dc power signal generator at the top of cable, it is connected with cable by relay and holding circuit II successively, and the 220V alternating current is connected with the relay coil end; The end of cable is connected with feed circuit and holding circuit I respectively; the holding circuit I is connected with 1.5V comparator circuit and 2.5V comparator circuit respectively through the optocoupler transmission circuit; 1.5V the signal of comparator circuit and the output of 2.5V comparator circuit is handled the back through CPU and is sent to Surveillance center's host computer by GSM short message communication unit, Surveillance center's host computer is provided with literal and phonetic alarm device.Described holding circuit I is provided with frequency inductance L1, optocoupler transmission circuit input end A1, the resistance R 3 of series connection, wherein the series circuit of optocoupler transmission circuit input end A1, resistance R 3 respectively with two the forward diode D2 that connect, D4 and backward dioded D1 parallel connection.Described holding circuit II is provided with resistance R 7, its with the parallel connection of 24V dc power signal generator after the frequency inductance L2 that connects, be added in again on cable live wire L and the zero line N.Described feed circuit are provided with 15V Switching Power Supply U2 and transformer U3, and the 5V of transformer U3 output gives CPU and 1.5V, 2.5V comparator circuit and the power supply of optocoupler transmission circuit; 15V Switching Power Supply U2 charges the battery, and is other circuit supplies simultaneously.
The course of work is as follows:
When cable does not supply the 220V alternating current, detection system is battery-powered, main flow electric signal on the detecting unit detection streamer of detection system, if detect dc signal greater than 2.5V, thinking that cable status is normal, why select 2.5V voltage, is to consider that the on-site cable actual conditions are varied, the electric shock loose contact, dielectric strength is bad or the like all can make signal seriously be decayed. " to Surveillance center, the host computer of Surveillance center can be reported to the police out by " cable fault ", reminds the maintainer to check cable. " to Surveillance center, the host computer of Surveillance center can be reported to the police out " cable break ", reminds the maintainer to be on the scene at once. ", point out out " cable reply normal " to host computer at host computer.
When cable begins power supply (220V alternating current), the signal generator at cable top cuts away DC voltage, the detecting unit of cable end piece detection system begins to detect alternating voltage, if alternating voltage is arranged, think that cable is normal, if detect less than alternating voltage, think that cable breaks, confirm that repeatedly the back sends short message " cable broken! by communication unit " to Surveillance center, the host computer of Surveillance center can be reported to the police out " cable break ", reminds the maintainer to be on the scene at once. ", point out out " cable reply normal " to host computer at host computer.At cable power supply simultaneously, can charge to supplying cell, be to have battery to power to cable detection system when cable was not powered in second day.
Claims (4)
1. cable burglar alarm wireless monitoring system, it is characterized in that: be provided with 24V dc power signal generator at the top of cable, it is connected with cable by relay and holding circuit II successively, and the 220V alternating current is connected with the relay coil end; The end of cable is connected with feed circuit and holding circuit I respectively; the holding circuit I is connected with 1.5V comparator circuit and 2.5V comparator circuit respectively through the optocoupler transmission circuit; 1.5V the signal of comparator circuit and the output of 2.5V comparator circuit is handled the back through CPU and is sent to Surveillance center's host computer by radio communication unit, Surveillance center's host computer is provided with warning device.
2. cable burglar alarm wireless monitoring system according to claim 1; it is characterized in that: described holding circuit I is provided with frequency inductance L1, optocoupler transmission circuit input end A1, the resistance R 3 of series connection, wherein the series circuit of optocoupler transmission circuit input end A1, resistance R 3 respectively with two the forward diode D2 that connect, D4 and backward dioded D1 parallel connection.
3. cable burglar alarm wireless monitoring system according to claim 2 is characterized in that: described holding circuit II is provided with resistance R 7, its with the parallel connection of 24V dc power signal generator after the frequency inductance L2 that connects, be added in again on cable live wire L and the zero line N.
4. cable burglar alarm wireless monitoring system according to claim 3, it is characterized in that: described feed circuit are provided with 15V Switching Power Supply U2 and transformer U3, and the 5V of transformer U3 output gives CPU and 1.5V, 2.5V comparator circuit and the power supply of optocoupler transmission circuit; 15V Switching Power Supply U2 charges the battery, and is other circuit supplies simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100109605A CN101853558B (en) | 2009-04-01 | 2009-04-01 | Cable burglar alarm wireless monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100109605A CN101853558B (en) | 2009-04-01 | 2009-04-01 | Cable burglar alarm wireless monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101853558A true CN101853558A (en) | 2010-10-06 |
| CN101853558B CN101853558B (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100109605A Expired - Fee Related CN101853558B (en) | 2009-04-01 | 2009-04-01 | Cable burglar alarm wireless monitoring system |
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| Country | Link |
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| CN (1) | CN101853558B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436710A (en) * | 2011-12-05 | 2012-05-02 | 厦门元谷信息科技有限公司 | Anti-theft alarm method and device for street lamp cable with self-checking function |
| CN103839348A (en) * | 2014-03-31 | 2014-06-04 | 国网上海市电力公司 | Cable anti-theft alarm system |
| CN103913674A (en) * | 2014-03-24 | 2014-07-09 | 镇江智拓智能科技发展有限公司 | Power cable anti-theft detection method |
| CN105067892A (en) * | 2015-09-22 | 2015-11-18 | 浙江方大智控科技有限公司 | Cable impedance detection circuit |
| CN105118214A (en) * | 2015-09-22 | 2015-12-02 | 浙江方大智控科技有限公司 | Cable antitheft system and corresponding cable antitheft method |
| CN105551160A (en) * | 2016-03-04 | 2016-05-04 | 北京云星宇科技服务有限公司 | Antitheft and alarm system of cable |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2727867Y (en) * | 2004-05-17 | 2005-09-21 | 史胜营 | Wireless anti-theft alarm device for oil well cable |
| CN2864834Y (en) * | 2005-12-02 | 2007-01-31 | 徐建刚 | Cable anti-theft and alarming device |
| CN101201960A (en) * | 2006-12-15 | 2008-06-18 | 党金春 | Cable anti-theft alarm system |
| CN201045672Y (en) * | 2007-06-15 | 2008-04-09 | 袁智才 | Road lamp, electric wire and distribution equipment wireless antitheft alarm system |
| CN201540616U (en) * | 2009-04-01 | 2010-08-04 | 大连现代高技术发展有限公司 | Anti-theft alarm wireless monitoring system of cable |
-
2009
- 2009-04-01 CN CN2009100109605A patent/CN101853558B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436710A (en) * | 2011-12-05 | 2012-05-02 | 厦门元谷信息科技有限公司 | Anti-theft alarm method and device for street lamp cable with self-checking function |
| CN102436710B (en) * | 2011-12-05 | 2014-01-01 | 厦门元谷信息科技有限公司 | Anti-theft alarm method for street lamp cable with self-checking function |
| CN103913674A (en) * | 2014-03-24 | 2014-07-09 | 镇江智拓智能科技发展有限公司 | Power cable anti-theft detection method |
| CN103839348A (en) * | 2014-03-31 | 2014-06-04 | 国网上海市电力公司 | Cable anti-theft alarm system |
| CN105067892A (en) * | 2015-09-22 | 2015-11-18 | 浙江方大智控科技有限公司 | Cable impedance detection circuit |
| CN105118214A (en) * | 2015-09-22 | 2015-12-02 | 浙江方大智控科技有限公司 | Cable antitheft system and corresponding cable antitheft method |
| CN105551160A (en) * | 2016-03-04 | 2016-05-04 | 北京云星宇科技服务有限公司 | Antitheft and alarm system of cable |
| CN105551160B (en) * | 2016-03-04 | 2019-11-05 | 北京云星宇科技服务有限公司 | Cable anti-theft alarm system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101853558B (en) | 2011-12-21 |
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Owner name: DALIAN MODERN HIGH-TECH DEVELOPMENT CO., LTD. Free format text: FORMER NAME: DALIAN MODERN HIGH-TECHNOLOGY DEVELOPMENT CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 116025 No. 51 XinDa street, hi tech park, Liaoning, Dalian Patentee after: Dalian Modern High-Tech Group Co.,Ltd. Address before: 116025 No. 51 XinDa street, hi tech park, Liaoning, Dalian Patentee before: Dalian Modern High-Technology Development Co., Ltd. |
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| 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: 20160401 |