CN201838109U

CN201838109U - Power equipment monitoring device

Info

Publication number: CN201838109U
Application number: CN201020602892XU
Authority: CN
Inventors: 黄江彬; 张顺利
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-12
Filing date: 2010-11-12
Publication date: 2011-05-18
Anticipated expiration: 2020-11-12

Abstract

The utility model relates to a power equipment monitoring device, which comprises a three-phase voltage acquisition circuit, a broken wire trigger circuit, a pyroelectric infrared induction circuit, a single chip microcomputer control circuit, an alarm bell driving circuit and a GSM (global system for mobile communication) wireless transceiving module. The three-phase voltage acquisition circuit, the broken wire trigger circuit and the pyroelectric infrared induction circuit transmit acquired signals to the single chip microcomputer, and the single chip microcomputer control circuit controls and outputs the signals to the alarm bell driving circuit and the GSM wireless transceiving circuit. The power equipment monitoring device adopting the pyroelectric infrared induction circuit gives out field warning sounds to scare away a thief when detecting the thief approaching a power line or a warning line of equipment, warning after equipment damage is avoided, even the thief cuts off the power equipment, GSM wireless warning can be given out, and thereby waste of manpower, material resources and financial resources, and economic loss of the country can be avoided.

Description

A kind of electric apparatus monitoring device

Technical field

The utility model relates to field of electrical equipment, particularly relates to a kind of electric apparatus monitoring device.

Background technology

China's power circuit or power equipment are stolen to happen occasionally, main cause is that the copper valency of high profit is induced, existing scientific and technological risk prevention instruments, mostly adopt break alarm to detect and dead electricity detection principle, these detection behaviors occur in power equipment stolen after, and power circuit is damaged, has caused the waste of a large amount of human and material resources and financial resources.

The utility model content

The purpose of this utility model provides multiple check circuits such as a kind of employing pyroelectric infrared-sensing human body circuit, avoids the electric apparatus monitoring device of reporting to the police again behind the damage equipment.

The technical scheme that the utility model adopted is such: a kind of electric apparatus monitoring device, comprise three-phase voltage Acquisition Circuit, broken string trigger circuit, pyroelectric infrared-sensing circuit, single chip machine controlling circuit, alarm bell driving circuit, gsm wireless transceiver module, described three-phase voltage Acquisition Circuit, broken string trigger circuit, pyroelectric infrared-sensing circuit with the signal conveys of gathering to single chip machine controlling circuit, single chip machine controlling circuit control output alarm bell driving circuit and gsm wireless transceiver module.

The DC voltage acquired signal that described three-phase voltage Acquisition Circuit is exported behind diode rectification, capacitor filtering by voltage transformer (VT) is input to comparator circuit and constitutes.

Described broken string trigger circuit are made up of switch LM and photoelectric coupled circuit, and LM is wrapped on the transformer screw foot.

Described pyroelectric infrared-sensing circuit connects the CSI9508 pyroelectric infrared sensor by the infrared ray sensing signal and forms.

By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: this device adopts the pyroelectric infrared-sensing circuit, when detecting the warning line when close power circuit of human body or equipment, send the onsite alarming sound, frighten the thief away, avoid reporting to the police again behind the damage equipment, when even the thief cuts off power equipment, send gsm wireless and report to the police, avoid causing waste of manpower, material resources, financial resources, and the economic loss of bringing to country.

Description of drawings

Fig. 1 is the structural diagrams intention of the utility model embodiment;

Fig. 2 is the circuit theory diagrams of the utility model embodiment.

Embodiment

Further specify the utility model below in conjunction with the drawings and specific embodiments.

As shown in Figure 1 and Figure 2, a kind of electric apparatus monitoring device, comprise three-phase voltage Acquisition Circuit 1, broken string trigger circuit 2, pyroelectric infrared-sensing circuit 3, single chip machine controlling circuit 4, alarm bell driving circuit 5, gsm wireless transceiver module 6, described three-phase voltage Acquisition Circuit 1, broken string trigger circuit 2, pyroelectric infrared-sensing circuit 3 with the signal conveys of gathering to single chip machine controlling circuit 4, single chip machine controlling circuit 4 control output alarm bell driving circuit 5 and gsm wireless transmission circuits 6.

When the AC220V loop voltage that the voltage transformer (VT) LA primary side of A phase constitutes is imported, LA secondary output end output AC 2.2V voltage, this signal is through diode D1 rectification, capacitor C 1 filtering, resistance in series R1, parallel resistance R2, the DC voltage acquired signal of capacitor C 3, C4 output, after this signal is isolated by diode D6, be input to the 3rd pin of voltage comparator circuit IC3 through resistance R 3, parallel resistance R4, R6 ratio of components are than voltage-setting circuitry behind the 3rd resistance in series R5 of voltage comparator circuit IC3.When the 3rd pin current potential of voltage comparator circuit IC3 is higher than its 2nd pin, voltage comparator circuit IC3 the 1st pin output terminal M1 point position noble potential.When LA is cut off, the LA primary side does not have the voltage input, secondary also just not output, this moment, the M1 current potential was zero, voltage comparator circuit IC3 is because of the 3rd pin current potential when higher than the 2nd pin, the upset of voltage comparator circuit IC3 internal circuit, the noble potential of being ordered by the M1 of its 1st pin output is input to the 35th pin I/O of single chip machine controlling circuit IC1, control through single chip machine controlling circuit IC1 internal processes, the 39th pin output low level signal by single chip machine controlling circuit IC1, promote hummer YD and send high pitch alarm sound " sabotage of electrical power equipment is illegal activities ", and by the 1st of single chip machine controlling circuit IC1,2,3,12 pin and gsm wireless transceiver module IC2 connect to form the communication data circuit, constitute the second short out letter warning message output port.B phase, C phase voltage testing circuit are the same with the principle of A phase voltage testing circuit, no longer repeat here.

Form broken string trigger circuit 2 by switch LM connection resistance R and photoelectric coupled circuit IC5, switch LM is wrapped on the transformer screw foot.When preparing theft, in the time of switch LM must being split off, photoelectric coupled circuit IC5 becomes cut-off state by original conducting state, the output terminal of photoelectric coupled circuit IC5 is through resistance R 19 output M2 points, the 34th pin I/O end that the signal that M2 is ordered is connected to single chip machine controlling circuit is high level, control through single chip machine controlling circuit IC1 internal processes, the 39th pin output low level signal by single chip machine controlling circuit IC1, promote hummer YD and send high pitch alarm sound " sabotage of electrical power equipment is illegal activities ", and by single chip machine controlling circuit IC1 the 1st, 2,3,12 pin and gsm wireless transceiver module IC2 connect to form the communication data circuit, constitute the second short out letter warning message output port.

Described pyroelectric infrared-sensing circuit 3 connects CSI9508 pyroelectric infrared sensor IC4 by infrared ray sensing signal PM and forms, when the people is mobile before pyroelectric sensor PM, the infrared ray variation that infrared ray sensing signal PM can give out human body is converted to electric signal output, and output signal frequency is 0.1-10Hz.CSI9508 pyroelectric infrared sensor IC4 is the special IC that adopts CMOS digital-to-analogue mixed structure, has independently high defeated people's impedance operational amplifier, can mate with multiple sensors, carries out the infrared signal pre-service.It includes element circuits such as voltage comparator, state controller, delay circuit timer, blocking time timer and reference voltage source.When infrared ray sensing signal PM induction human body moves, infrared ray sensing signal PM just exports with human body and moves and the electric signal that changes is delivered to the 14th pin of CSI9508 pyroelectric infrared sensor IC4 by the defeated people's impedance operational amplifier W input end of height, after the preposition amplification of CSI9508 pyroelectric infrared sensor IC4, output signal by its 16th pin is coupled to its 13rd pin through capacitor C 13, constituting two-way amplitude discriminator through interior voltage comparator again handles, export the delay timer of effective start trigger signal chip internal, at last by the 2nd pin output high level M3 point control signal of state controller from CSI9508 pyroelectric infrared sensor IC4, the high level that M3 is ordered is input to the 25th pin of single chip machine controlling circuit IC1, control through single chip machine controlling circuit IC1 internal processes, the 39th pin output low level signal by single chip machine controlling circuit IC1, promote hummer YD and send high pitch alarm sound " sabotage of electrical power equipment is illegal activities ", and by the 1st of single chip machine controlling circuit IC1,2,3,12 pin and gsm wireless transceiver module IC2 connect to form the communication data circuit, constitute the second short out letter warning message output port.When M1, M2, M3 point current potential were zero simultaneously, single chip machine controlling circuit IC1 internal processes was judged as the power supply power down mode, and single chip machine controlling circuit IC1 sends power failure note data command information to gsm wireless transceiver module IC2IC2.

More than show and described ultimate principle of the present utility model and principal character and advantage thereof; the technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the explanation just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. electric apparatus monitoring device, it is characterized in that: comprise three-phase voltage Acquisition Circuit (1), broken string trigger circuit (2), pyroelectric infrared-sensing circuit (3), single chip machine controlling circuit (4), alarm bell driving circuit (5), gsm wireless transceiver module (6), described three-phase voltage Acquisition Circuit (1), broken string trigger circuit (2), pyroelectric infrared-sensing circuit (3) with the signal conveys of gathering to single chip machine controlling circuit (4), single chip machine controlling circuit (4) control output alarm bell driving circuit (5) and gsm wireless transceiver module (6).

2. a kind of electric apparatus monitoring device according to claim 1 is characterized in that: the DC voltage acquired signal that described three-phase voltage Acquisition Circuit (1) is exported behind diode rectification, capacitor filtering by voltage transformer (VT) is input to comparator circuit and constitutes.

3. a kind of electric apparatus monitoring device according to claim 2 is characterized in that: described broken string trigger circuit (2) are made up of switch LM and photoelectric coupled circuit, and LM is wrapped on the transformer screw foot.

4. a kind of electric apparatus monitoring device according to claim 1 is characterized in that: described pyroelectric infrared-sensing circuit (3) connects the CSI9508 pyroelectric infrared sensor by the infrared ray sensing signal and forms.