CN2924662Y - Passive-based dual-state auto-switching anti-theft alarm circuit - Google Patents

Passive-based dual-state auto-switching anti-theft alarm circuit Download PDF

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Publication number
CN2924662Y
CN2924662Y CN 200620105053 CN200620105053U CN2924662Y CN 2924662 Y CN2924662 Y CN 2924662Y CN 200620105053 CN200620105053 CN 200620105053 CN 200620105053 U CN200620105053 U CN 200620105053U CN 2924662 Y CN2924662 Y CN 2924662Y
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circuit
bypass
passive
street lamp
lights
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CN 200620105053
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Chinese (zh)
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蒋焕尧
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蒋焕尧
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Abstract

The utility model relates to an anti-theft alarm circuit, in particular to a dual-state automatic switching anti-theft alarm circuit based on passive, which comprises a master loop and a bypass circuit. A current sensor connected between front end of a street lamp and an AC power supply in a serial way is arranged on the master loop. The output end of the signal of the current sensor is connected with the input end of the signal of the street lamp controller. The bypass circuit comprising a bypass impedance element and a bypass switch which are connected in series is connected with the rear end of the street lamp in a parallel way. The utility model can play the role of real-time monitoring of 24 hours for the cables of the street lamp aiming at the anti-theft of cable of the street lamp and according to the features of the cables of the street lamp, and can find the scene of the theft within 2 seconds matching with the sensing equipment of the wireless street lamp monitoring system. Compared with the original power line carrier the utility model has the advantages of the simple structure, low cost and good flexibility etc.

Description

基于无源的双状态自动切换的防盗报警电路 Burglar alarm circuit is switched automatically based on passive two-state

技术领域 FIELD

本实用新型涉及一种防盗报警电路,尤其涉及一种基于无源的双状态自动切换的防盗报警电路。 The present invention relates to a burglar alarm circuit, particularly to a burglar alarm circuit is switched automatically based on the two-state passive.

背景技术 Background technique

近年来,一些不法分子盗窃电缆的事件频频发生,因此,如何对电缆进行有效的监控以防止被盗,已被人们所关注,而路灯电缆由于在晚上供电,白天处于无电状态,受其埋设位置、线路长度、运行环境(马路汽车振动、挤压等)、所带负载(感性与容性兼存)、不同程度漏电等因素影响,工况环境相对复杂,目前主要采用的电力载波、线路末端发脉冲信号等方法,再配合如图1所示无线路灯监控系统等传感设备,从而对路灯电缆进行监控,其缺点是结构复杂、成本高、响应速度慢。 In recent years, some criminals cable theft incidents occur frequently, therefore, how to effectively monitor cable to prevent theft, has been of concern, because the power supply cable and lights at night, during the day without electricity in the state, by its buried Effect of the position, the line length, the operating environment (road vehicle vibration, pressing, etc.), carried load (the capacitive and inductive storage), varying degrees of leakage and other factors, environmental conditions are relatively complex, mainly used in the electric power carrier line pulsing signal terminal or the like, then lights wireless monitoring system with the sensing apparatus shown in FIG. 1, thereby monitoring lamp cable, the drawback is the complex structure, high costs, slow response.

实用新型内容针对上述技术存在的缺陷,本实用新型的目的在于提供一种结构简单、可靠性好、响应时间快的防盗报警电路。 SUMMARY for defects of the above-described techniques, object of the present invention to provide a simple structure, high reliability, fast response time burglar alarm circuit.

为实现上述目的,本实用新型采用的技术方案为:一种基于无源的双状态自动切换的防盗报警电路,其特征在于:包括主回路和旁路电路,上述主回路设有电流传感器,此电流传感器串接于路灯前端与交流电源之间,用于监测各路灯支路的电流总和,电流传感器的信号输出端联接于路灯控制器的信号输入端;上述旁路电路并接于路灯后端,包括相串接的旁路阻抗元件和当上述主回路电流高于设定值时切断旁路电路的旁路开关。 To achieve the above object, the present invention adopts the technical solution as follows: Based on a two-state anti-theft alarm passive automatic switching circuit, characterized by: a main circuit and a bypass circuit, the main circuit provided with a current sensor, this a current sensor connected in series between the AC power source and the distal end street, a current sum signal output terminal of each street monitoring branch current sensor coupled to the controller signal input lights; and the bypass circuit and connected to the rear lights , the impedance element comprises a bypass and in tandem when said main circuit current is higher than the set value of the bypass switch off the bypass circuit.

本实用新型进一步设置为:所述主回路还包括依次串接于路灯后端的降压部件、整流滤波部件和直流继电器,上述旁路开关为此直流继电器的常闭辅助触点;所述降压部件可为电容,也可为降压变压器,亦可为一定阻值的电阻;本实用新型另一种设置为:所述主回路还包括串接于路灯后端的交流继电器,上述旁路开关为此交流继电器的常闭辅助触点;所述旁路开关为热敏电阻。 The present invention is further arranged to: the main circuit further comprises sequentially connected to the rear end of the down lights member rectifier filter and DC relay member, the above-described bypass switch normally closed auxiliary contact for this DC relay; the buck member may be a capacitor, it may be step-down transformer, a resistor may also be a certain resistance; another arrangement of the present invention comprises: the main circuit further comprises a relay in series with the AC rear lights of the bypass switch is the AC relay is normally closed auxiliary contact; said bypass switch is a thermistor.

本实用新型的工作原理为:当晚上路灯打开时,正常市电输入,电流传感器监测到各路灯支路的总电流,此时电流瞬间通过降压部件降压,并经整流滤波部件整流后使直流继电器J动作,常闭点K会断开,此时电流通过主电路而不通过旁路电路,即电路末端仅够维持J动作的电流,对智能传感器对总电流的监测无影响,当电缆被割断时,必然会导致总电流的突然下降,电流传感器监测到的电流下降情况,并通过路灯控制器传输给监控中心,监控中心根据电流传感器监测到的电流下降情况,来判断某一条支路的失窃情况;当白天路灯关闭时,不通市电,电流传感器随即会自动投入低电平整流直流电,此时J动作不了,K常闭,即此时电流通过旁路电路形成回路,此回路始终存在一个小电流,而电流传感器的依旧通过路灯控制器将信号传输给监控中心,即电 The present invention works as follows: when the street at night open, normal mains input, the current sensor detects the total current in each branch lights, the instant when the current through the buck down member, and that the rectified by the rectifier filter means DC relay operation J, K will normally closed off when the current through the main circuit without passing through the bypass circuit, i.e. the circuit current J end just enough to maintain the operation of the monitoring smart sensor has no effect on the total current, when the cable when cut, will inevitably lead to a sudden drop in the total current, a current sensor monitoring the current to decrease, the lamp controller and transmitted to the monitoring center via the monitoring center according to the monitored current sensor drops case, a branch to determine a theft case; daytime when the lights off, the mains fails, then the current sensor will automatically rectified low DC input, the action can not at this time J, K normally closed, i.e. when the current through the bypass circuit forms a loop, the loop is always There is a small current, but the current sensor still lights by the controller transmits a signal to the monitoring center, i.e., electrical 传感器始终流过一定电流,当某一支路的电缆被割断,传感器会实时监测到电流的变化情况,并通过路灯控制器向监测中心报告某一支路电缆失窃,从而实现24小时对路灯电缆的不间断监控。 A constant current always flows through the sensor, when a branch cable is cut, the sensor will be monitored in real time to changes in the current, and a branch cable theft report to the monitoring center by the lamp controller, to achieve 24 hours lamp cable the continuous monitoring.

本实用新型的有益效果为:本实用新型针对路灯电缆的防盗,根据路灯电缆的特点,可起到对路灯电缆24小时实时监控作用,配合无线路灯监控系统等传感设备,能在2秒钟以内发现盗窃点,相比较于原有的电力载波,线路末端发脉冲信号的方法,具有结构简单、成本低、灵活性好等优点。 The present invention is beneficial effects: the present invention for the lamp cable theft, according to the characteristics of the lamp cable, can play real-time monitoring of the lamp cable 24 hours action, street monitoring system with wireless sensing device can be in 2 seconds within theft points found, compared to the original power line carrier, a method pulsing signal line end, has a simple structure, low cost, good flexibility advantages.

附图说明 BRIEF DESCRIPTION

图1为本实用新型所述无线路灯监控系统的结构原理图;图2为本实用新型实施例一的电路原理图;图3为本实用新型实施例二的电路原理图;图4为本实用新型实施例三的电路原理图;图5为本实用新型实施例四的电路原理图。 FIG 1 is a structural diagram of the new system, the wireless lamp monitoring utility; novel embodiment of a circuit diagram of the present utility FIG. 2; new circuit diagram according to a second embodiment of the present utility FIG. 3; FIG. 4 is a utility new circuit diagram of Example III; FIG. 5 schematic circuit diagram of the embodiment of new four present invention.

具体实施方式 detailed description

如图1所示的无线路灯监控系统由监控中心1和路灯控制器2两大部分组成,监控中心负责对路灯系统的监测和发送控制指令,路灯控制器采用一种无源的、双状态切换电路。 FIG wireless lamp monitoring system 1 shown in FIG. 2 by the two parts 1 and the monitoring center lights controller, the monitoring center is responsible for monitoring street lighting system and a control instruction, the controller lights uses a passive, two-state switch circuit. 监测时,路灯系统通过CDMA 1X网络采集路灯系统的运行参数和运行状态,在监控中心对状态进行表现并根据采集的数据对路灯系统运行状态的改变做出决策,实现了对路灯电缆安全可靠的防盗监控。 When monitoring, street lighting system acquisition by CDMA 1X network operating parameters and operating state of the streetlight system, the performance of the state in the monitoring center and changing the operational status streetlight system to make decisions based on the data collected, the realization of safe and reliable lamp cable security monitoring.

如图2所示的实施例一,主回路包括依次串接于路灯后端的电容C、整流桥3和直流继电器J、电流传感器4,电流传感器4串接于路灯前端与交流电源之间,用于监测各路灯支路的电流总和,电流传感器4的信号输出端联接于路灯控制器5的信号输入端;旁路电路包括旁路阻抗元件R和旁路开关K,旁路开关K为所述直流继电器J的常闭辅助触点;当晚上开灯时,正常市电输入,电流传感器4监测到该回路的总电流。 Between the embodiment shown in Figure 2 a main circuit including sequentially connected to the rear end of the street capacitance C, rectifier bridge 3 and the DC relay J, a current sensor 4, a current sensor 4 is connected in series with the AC power source lights front end, with the sum of the respective current monitoring lights branch, the current sensor signal output terminal 4 is coupled to the signal input of the lamp controller 5; bypass circuit includes a bypass switches and the bypass impedance elements R K, K is the bypass switch J DC relay normally closed auxiliary contacts; lights at night when the normal mains input, the current sensor 4 to monitor the total current loop. 此时电流瞬间通过电容C降压,经整流使直流继电器J动作,旁路开关K断开,电流不通过电阻R,即线路末端仅够维持J动作的电流,对电流传感器的电流的监测无影响。 The instant when the current through the capacitor C buck, so that the rectified DC relay operation J, K bypass switch is turned off, no current through the resistor R, i.e. the end of the line current J just enough to maintain the operation, monitoring a current sensor without influences. 当电缆被割断时,必然导致总电流的突然下降,也可通过下面讲述的“白天状态”进行判断,这样就能判断某一条支路的失窃情况。 When the cable is cut, inevitably resulting in a sudden drop of the total current, it can also be determined by the following describes "daytime state", so that theft can be determined in a case where a branch.

当白天关灯时,不通市电,随即通过电流传感器4自动投入低电平整流正弦波直流电,直流继电器J动作不了,旁路开关K常闭,即线路始终存在一个小电流,而电流传感器4的数据始终通过路灯监控器5向监控中心实时发送数据,一旦发生盗窃情况,电流传感器4会监测到电流的变化情况,并实时通过路灯控制将信号传输给监控中心,监控中心根据该信号来判断是哪一支路电缆失窃。 When the lights during the day, nowhere electricity, will be automatically put into the low level by the DC current rectified sine wave sensor 4, the operation can not DC relay J, K bypass switch normally closed, i.e. there is always a small current circuit and the current sensor 4 data is always sent through street monitor 5 to the monitoring center real-time data, event of a theft occurs, the current sensor 4 will monitor the changes in current and real-time by street lighting control signals transmitted to the monitoring center, the monitoring center is determined based on the signal which is a branch cable theft.

当然,也可把电容C替换为一定阻值的电阻也是一样的。 Of course, also the alternative constant capacitance C is the same value resistors.

如图3所示的实施例二,降压部件替换为变压器6,其他设置同实施例一;如图4所示的实施例三,采用交流继电器J-1直接控制:当晚上开灯时,正常市电输入,传感器4监测到该回路的总电流。 Embodiment shown in FIG. 3 according to the second step-down transformer replacement member 6, an embodiment is provided with the other embodiment; FIG. 4 embodiment illustrated three relays AC J-1 directly controls: When the lights at night, normal mains input, a sensor 4 to monitor the total current loop. 此时电流瞬间通过220VAC继电器J动作,旁路开关K断开,电流不通过电阻R,即线路末端仅够维持J动作的电流,对智能传感器的电流的监测无影响。 The instant when the current through the relay J 220VAC operation, the bypass switch K is turned off, no current through the resistor R, i.e. the end of the line current J sufficient only to maintain the operation, no effect on the current monitoring smart sensors. 当电缆被割断时,必然导致总电流的突然下降,也可通过下面讲述的“白天状态”进行判断,这样就能判断某一条支路的失窃情况;当白天关灯时,不通市电,随即通过电流传感器4自动投入低电平整流正弦波直流电,交流继电器J-1动作不了,旁路开关K常闭,即线路始终存在一个小电流,而电流传感器4的数据始终通过路灯监控器5向监控中心实时发送数据,一旦发生盗窃情况,电流传感器4会监测到电流的变化情况,并实时通过路灯控制将信号传输给监控中心,监控中心根据该信号来判断是哪一支路电缆失窃。 When the cable is cut, inevitably resulting in a sudden drop of the total current, can also be determined by the following describes "daytime state", so that theft can be determined in a case where a branch; daytime when lights, nowhere electricity, then the current sensor 4 by the automatic input sine wave rectified low DC, AC relay operation can not J-1, K bypass switch normally closed, i.e. there is always a small current line, the current sensor 4 and the data is always to the monitor 5 by the lights transmitting real-time data monitoring center, once the theft occurs, the current sensor 4 monitors changes in the current, real-time and transmits a signal through the control lights to the monitoring center, the monitoring center to determine what is the basis of the signal branch cable theft.

如图5所示的实施例四,利用PTC热敏电阻的特性,当晚上路灯通市电时,电流超过PTC的热敏电流(一般选用80~250MA的),PTC断路,通过电阻R的电流瞬间降为0。 Example 5 shown in FIG. Fourth, the use characteristics of the PTC thermistor, when the lights at night through the mains, the current exceeds the PTC thermistor (generally used in the 80 ~ 250MA), PTC open circuit, current through resistor R instantly reduced to 0. 白天时,电流小于PTC的热敏值(一般为PTC热敏电流的一半),做到了“晚上”“白天”状态的自动切换。 During the day, less than the current value of the PTC thermistor (PTC thermistor generally half the current), so that the automatic switching "night", "day" state.

Claims (6)

1.基于无源的双状态自动切换的防盗报警电路,其特征在于:包括主回路和旁路电路,上述主回路设有电流传感器,此电流传感器串接于路灯前端与交流电源之间,用于监测各路灯支路的电流总和,电流传感器的信号输出端联接于路灯控制器的信号输入端;上述旁路电路并接于路灯后端,包括相串接的旁路阻抗元件和当上述主回路电流高于设定值时切断旁路电路的旁路开关。 1. burglar alarm circuit based on a passive double automatic switching state, characterized by: a main circuit and a bypass circuit, the main circuit provided with a current sensor, a current sensor connected in series between this front end of the AC power source lights, with to monitor the sum of currents in branches lights, the signal output of the current sensor coupled to the controller signal input lights; and the bypass circuit and connected to the rear lights, the bypass impedance elements comprise in tandem when said main and bypass switch off the bypass circuit when the loop current is higher than the set value.
2.根据权利要求1所述的基于无源的双状态自动切换的防盗报警电路,其特征在于:上述主回路还包括依次串接于路灯后端的降压部件、整流滤波部件和直流继电器,上述旁路开关为此直流继电器的常闭辅助触点。 The burglar alarm circuit is switched automatically based on the two-state passive claimed in claim 1, wherein: the main circuit further comprises sequentially connected to the rear end of the down lights member rectifier filter and DC relay member, the above-described bypass switch normally closed auxiliary contact for this DC relay.
3.根据权利要求2所述的基于无源的双状态自动切换的防盗报警电路,其特征在于:上述降压部件为电容。 The burglar alarm circuit is switched automatically based on the state of the passive dual claimed in claim 2, wherein: said pressure-member is a capacitor.
4.根据权利要求2所述的基于无源的双状态自动切换的防盗报警电路,其特征在于:上述降压部件为降压变压器。 The burglar alarm circuit is switched automatically based on the state of the passive dual claimed in claim 2, wherein: said pressure-member is a step-down transformer.
5.根据权利要求1所述的基于无源的双状态自动切换的防盗报警电路,其特征在于:上述主回路还包括串接于路灯后端的交流继电器,上述旁路开关为此交流继电器的常闭辅助触点。 The burglar alarm circuit is switched automatically based on the two-state passive claimed in claim 1, wherein: the main circuit further comprises in series with the AC relay rear lights, normally the above-described bypass switch for this relay AC closed auxiliary contact.
6.根据权利要求1所述的基于无源的双状态自动切换的防盗报警电路,其特征在于:上述旁路开关为热敏电阻。 The burglar alarm circuit is switched automatically based on the two-state passive claimed in claim 1, wherein: the bypass switch described above is a thermistor.
CN 200620105053 2006-06-26 2006-06-26 Passive-based dual-state auto-switching anti-theft alarm circuit CN2924662Y (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102298814A (en) * 2011-08-23 2011-12-28 邯郸市隆达利科技发展有限公司 Passive alarm lamp cable
CN102819920A (en) * 2011-12-20 2012-12-12 无锡市爱诺泰能源科技有限公司 Round-the-clock cable anti-theft alarm device
WO2015008196A3 (en) * 2013-07-16 2015-04-23 Batista Oliveira Costa Leal Miguel System for operating and monitoring power cables
CN105307356A (en) * 2015-11-30 2016-02-03 广州长丰电子科技有限公司 Urban lighting intelligent control terminal
CN105741468A (en) * 2016-03-18 2016-07-06 上海路辉电子科技有限公司 Cable antitheft alarm system and method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102298814A (en) * 2011-08-23 2011-12-28 邯郸市隆达利科技发展有限公司 Passive alarm lamp cable
CN102298814B (en) * 2011-08-23 2014-06-11 邯郸市隆达利科技发展有限公司 Passive street lamp cable alarm
CN102819920A (en) * 2011-12-20 2012-12-12 无锡市爱诺泰能源科技有限公司 Round-the-clock cable anti-theft alarm device
CN102819920B (en) * 2011-12-20 2014-03-26 无锡市爱诺泰能源科技有限公司 Round-the-clock cable anti-theft alarm device
WO2015008196A3 (en) * 2013-07-16 2015-04-23 Batista Oliveira Costa Leal Miguel System for operating and monitoring power cables
AU2014291677B2 (en) * 2013-07-16 2018-06-07 Miguel BATISTA OLIVEIRA COSTA LEAL System for operating and monitoring power cables
CN105307356A (en) * 2015-11-30 2016-02-03 广州长丰电子科技有限公司 Urban lighting intelligent control terminal
CN105307356B (en) * 2015-11-30 2019-02-15 广州长丰电子科技有限公司 City illumination intelligent monitoring terminal
CN105741468A (en) * 2016-03-18 2016-07-06 上海路辉电子科技有限公司 Cable antitheft alarm system and method

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