CN201477695U - GSM wireless warning device used for electrical power unit - Google Patents

GSM wireless warning device used for electrical power unit Download PDF

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Publication number
CN201477695U
CN201477695U CN2009201941416U CN200920194141U CN201477695U CN 201477695 U CN201477695 U CN 201477695U CN 2009201941416 U CN2009201941416 U CN 2009201941416U CN 200920194141 U CN200920194141 U CN 200920194141U CN 201477695 U CN201477695 U CN 201477695U
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CN
China
Prior art keywords
circuit
voltage
gsm
chip
input
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Application number
CN2009201941416U
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Chinese (zh)
Inventor
傅俊豪
Original Assignee
福建俊豪电子有限公司
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Priority to CN2009201941416U priority Critical patent/CN201477695U/en
Application granted granted Critical
Publication of CN201477695U publication Critical patent/CN201477695U/en

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Abstract

The utility model provides a GSM wireless warning device used for an electrical power unit, which comprises a power supply circuit, a single chip control circuit, a voltage detection circuit, an optical coupling isolating switch circuit, an analog switch circuit and an GSM emitting circuit, wherein the voltage detection circuit and the input of the optical coupling isolating switch circuit are connected with each phase voltage input and the power supply circuit, the output is connected to the analog switch circuit, the input of the single chip control circuit is connected with the analog switch circuit, and the output is connected to the GSM emitting circuit. The GSM wireless warning device used for the electrical power unit disclosed by the utility model uses a voltage transformator for collecting voltage signals, judges whether voltage output exists through comparison, realizes the switching and section through an analog switch, carries out logic processing through a single chip for judges whether the circuit is open or the power is shut down, and judges whether an external switch is switched off through an optical coupling isolating switch for integrally judging whether the electrical power unit is stolen, then, the single chip sends out signals for driving the GSM module circuit for sending warning information.

Description

A kind of gsm wireless warning device that is used for power equipment
Technical field
The utility model relates to electronic circuit field, relates in particular to a kind of gsm wireless warning device that is used for power equipment.
Background technology
Because of copper material constantly appreciates, some lawless persons steal power equipment or cable often under the ordering about of interests, especially in some remote places, unmanned value the place, stealthy activity is becoming increasingly rampant, and is having a strong impact on the people's work and life.Power department can not be assigned a large amount of manpowers to this, takes artificial mode that power equipment is monitored in real time, prevents that stolen or ruined phenomenon from taking place.
At China's power equipment, the frequent stolen phenomenon of power circuit, the demand of guard against theft and alarm system becomes more and more urgent, existing anti-theft measure is to adopt modes such as antitheft card, infrared ray and limited distance wireless telecommunications to solve antitheft problem, but, because the limitation that the equipment antijamming capability is weak, often false alarm occurs or can not in time receive the situation of alerting signal, can not accurately and timely make judgement, and can't embody alarm content with written form, be difficult to really accomplish promptly and accurately to judge larceny.
The utility model content
The technical matters of the required solution of the utility model provides a kind of gsm wireless warning device that is used for power equipment, can break, the judgement of power failure, superpotential and under-voltage, and adopt the GSM emission that warning message is sent to the designated person with the form of note, can promptly and accurately report to the police, effectively antitheft.
The technical scheme that the invention for solving the technical problem adopted is:
A kind of gsm wireless warning device that is used for power equipment comprises power circuit, single chip machine controlling circuit, voltage detecting circuit, optically-coupled disconnector circuit, analog switching circuit and GSM radiating circuit, wherein,
Power circuit, its output are connected in single chip machine controlling circuit, voltage detecting circuit, optically-coupled disconnector circuit, analog switching circuit and GSM radiating circuit, provide circuit+5V ,+the 12V working power;
Single chip machine controlling circuit, its input is connected in analog switching circuit and power circuit, and its output is connected to the GSM radiating circuit;
Voltage detecting circuit, its input are connected in each phase voltage input and power circuit, and its output is connected in analog switching circuit;
Optically-coupled disconnector circuit, its input is connected in power circuit, and output is connected in analog switching circuit;
Analog switching circuit, its input are connected in voltage detecting circuit and optically-coupled disconnector circuit, and its output is connected in single chip machine controlling circuit;
The GSM radiating circuit, its input is connected in single chip machine controlling circuit.
Further, also comprise alarm lamp, its input is connected in single chip machine controlling circuit, is made of light emitting diode and resistance.
Further, described single chip machine controlling circuit is that 51 singlechip chips and connection crystal oscillating circuit thereon constitute, and described crystal oscillating circuit is made up of crystal oscillator and two filter capacitors.
Further, described power circuit is that the output terminal of transformer constitutes through the power rectifier voltage stabilizing chip that a full-bridge rectification unit of being made up of 4 diodes is connected with its output terminal, the input end of described power rectifier voltage stabilizing chip and be connected to 2 filter capacitors and output terminal also and be connected to 2 filter capacitors.
Further, described voltage detecting circuit comprises phase voltage mutual inductor and voltage comparator circuit, be to adopt the phase voltage mutual inductor to gather each phase voltage signal of electrical network, through voltage comparator circuit and reference voltage relatively after, the switching selection through switch switching circuit inputs to single chip machine controlling circuit with signal again.
Further, described phase voltage testing circuit is to respond to this phase voltage signal by current transformer, and process diode rectification on the secondary coil of current transformer is behind the capacitor filtering, after resistance current limliting dividing potential drop, the filtering circuit that constitutes through electric capacity inputs to voltage comparator circuit more again.Described voltage comparator circuit is to adopt computing to amplify chip, and reference voltage terminal is connected in the middle point voltage end by the drop-down resistance in series that is connected in power circuit (1)+5V (R2 and R4).
Further, described analog switching circuit adopts the analog switch chip, can be preferably the 74HC4051 chip.The wireless communication line that described GSM radiating circuit is made up of the GSM chip.
Further, the circuit that described optically-coupled disconnector circuit is made up of photoelectrical coupler, divider resistance and pull-up resistor, the output terminal of photoelectrical coupler is connected in analog switching circuit.
The disclosed gsm wireless warning device that is used for power equipment of the utility model, be to gather voltage signal, export through relatively having judged whether voltage with voltage transformer (VT), switch selection through analog switch, through the single-chip microcomputer logical process, judge whether broken string or power failure, and judge by the optically-coupled on-off circuit whether external switch disconnects and comprehensively judge whether stolen phenomenon of power equipment, send signal through single-chip microcomputer again and drive the gsm module circuit, send warning message.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model power equipment gsm wireless warning device;
Fig. 2 is the circuit diagram of the utility model power equipment gsm wireless warning device.
Embodiment
Existing accompanying drawings and embodiment further specify the utility model.
Consult shown in Figure 1ly, a kind of gsm wireless warning device that is used for power equipment of the present utility model comprises power circuit 1, single chip machine controlling circuit 2, voltage detecting circuit 3, optically-coupled disconnector circuit 4, analog switching circuit 5 and GSM radiating circuit 6, wherein,
Power circuit 1, its output are connected in single chip machine controlling circuit 2, voltage detecting circuit 3, optically-coupled disconnector circuit 4, provide circuit+5V ,+the 12V working power;
Single chip machine controlling circuit 2, its input are connected in analog switching circuit 5 and power circuit 1, and its output is connected to GSM radiating circuit 6;
Voltage detecting circuit 3, its input are connected in each phase voltage input and power circuit 1, and its output is connected in analog switching circuit 5;
Optically-coupled disconnector circuit 4, its input is connected in power circuit 1, and its output is connected in analog switching circuit 5;
Analog switching circuit 5, its input are connected in voltage detecting circuit 3 and optically-coupled disconnector circuit 4, and its output is connected in single chip machine controlling circuit 2;
GSM radiating circuit 6, its input is connected in single chip machine controlling circuit 2;
Alarm lamp 7, its input is connected in single chip machine controlling circuit 2.
Further, consult shown in Figure 2ly, described single chip machine controlling circuit 2 is that 51 singlechip chip U1 and the crystal oscillating circuit that connects thereon constitute, and described crystal oscillating circuit is made up of crystal oscillator Y1 and two filter capacitor C10, C11.
The power rectifier voltage stabilizing chip U5 generation+5V power supply that the output terminal that described power circuit 1 is a transformer is connected with its output terminal through a full-bridge rectification unit of being made up of 4 diode D4~D7, the input end of described power rectifier voltage stabilizing chip U5 and be connected to 2 filter capacitor C12, C13 and output terminal also and be connected to 2 filter capacitor C14, C15.Similarly, the power rectifier voltage stabilizing chip U6 generation+12V power supply that the output terminal of transformer is connected with its output terminal through a full-bridge rectification unit of being made up of 4 diode D8~D11, the input end of described power rectifier voltage stabilizing chip U6 and be connected to 2 filter capacitor C16, C17 and output terminal also and be connected to 2 filter capacitor C18, C19.
Described voltage detecting circuit 3 comprises phase voltage mutual inductor 31 and voltage comparator circuit 32, be to adopt phase voltage mutual inductor 31 to gather each phase voltage signal of electrical network, through voltage comparator circuit 32 and reference voltage relatively after, select signal is inputed to single chip machine controlling circuit 2 through the switching of switch switching circuit 5 again.
Further, described phase voltage testing circuit 31 is to respond to this phase voltage signal by current transformer B1, process diode D1 rectification on the secondary coil of current transformer B1, after capacitor C 1 filtering, after resistance R 1, resistance R 20 current limliting dividing potential drops, the filtering circuit that constitutes through capacitor C 2, capacitor C 3 inputs to voltage comparator circuit 32 more again.Described voltage comparator circuit 32 is to adopt computing to amplify chip U3, and reference voltage terminal is connected in the middle point voltage end by drop-down resistance in series R2 that is connected in power circuit (1)+5V and R4, and resistance R 3 is the input resistance of series connection.
Further, described analog switching circuit 5 adopts analog switch chip U2, is the 74HC4051 chip.Described GSM radiating circuit 6 is made up of GSM chip U4.
Further, the circuit that described optically-coupled disconnector circuit 4 is made up of photoelectrical coupler T1, divider resistance R17 and pull-up resistor R18, the output terminal of photoelectrical coupler T1 is connected in analog switching circuit 5.
Described alarm lamp 7 is to be made of LED 1 and resistance R 16.
The principle of work that the utility model is used for the burglar alarm of power equipment is:
When judging the electric power line failure situation, form optically-coupled disconnector circuit 4 by photoelectrical coupler T1, resistance R 18 and resistance R 17, detect power circuit and whether break.When circuit breaks, not conducting of photoelectrical coupler T1, the circuit input high level is given the 14th pin of analog switch chip U2, inserts the 35th pin of 51 singlechip chip U1 after internal conversion from the 3rd pin output high level of analog switch chip U2.
When judging whether supply voltage exists superpotential, during the under-voltage situation, through current transformer B1 induction ac voltage signal, the voltage that current transformer B1 secondary coil produces, through diode D1 rectification, after capacitor C 1 filtering, pass through again by resistance R 1, capacitor C 2, the filtering circuit that capacitor C 3 is formed, through resistance R 1 current limliting, resistance R 20 dividing potential drops, to capacitor C 2 chargings, insert computing and amplify the 6th pin of chip U3, export high level inserts analog switch chip U2 after the R5 current limliting the 4th pin, after internal conversion, insert the 35th pin of 51 singlechip chip U1 from the 3rd pin outputting data signals of analog switch chip U2 by the 7th pin.Superpotential, the under-voltage situation principle on other road (L2 with L3 mutually) are same as above, repeat no more.
Further, 51 singlechip chip U1 have detected the data-signal input, after the logic analysis of single-chip microcomputer U1 internal processes is judged, divide two-way output.When detecting data-signal, 51 singlechip chip U1 reach alarm condition when input, first via output, and by 51 singlechip chip U1 the 1st pin output low level, LED1 is bright through the R16 pilot lamp, and pilot lamp is reported to the police; The second tunnel output inserts GSM chip U4 by the 7th pin of 51 singlechip chip U1, the 8th pin, the 14th pin and the 27th pin, and alert data is sent in the GSM radiating circuit, by the GSM radiating circuit warning message is sent to the designated person with the form of note.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.

Claims (10)

1. gsm wireless warning device that is used for power equipment, it is characterized in that: comprise power circuit (1), single chip machine controlling circuit (2), voltage detecting circuit (3), optically-coupled disconnector circuit (4), analog switching circuit (5) and GSM radiating circuit (6), wherein
Power circuit (1), its output are connected in single chip machine controlling circuit (2), voltage detecting circuit (3), optically-coupled disconnector circuit (4);
Single chip machine controlling circuit (2), its input are connected in analog switching circuit (5) and power circuit (1), and its output is connected to GSM radiating circuit (6);
Voltage detecting circuit (3), its input are connected in each phase voltage input and power circuit (1), and its output is connected in analog switching circuit (5);
Optically-coupled disconnector circuit (4), its input are connected in power circuit (1), and its output is connected in analog switching circuit (5);
Analog switching circuit (5), its input are connected in voltage detecting circuit (3) and optically-coupled disconnector circuit (4), and its output is connected in single chip machine controlling circuit (2);
GSM radiating circuit (6), its input are connected in single chip machine controlling circuit (2).
2. gsm wireless warning device according to claim 1, it is characterized in that: described single chip machine controlling circuit (2) is that 51 singlechip chips (U1) and connection crystal oscillating circuit thereon constitute, and described crystal oscillating circuit is made up of crystal oscillator (Y1) and two filter capacitors (C10, C11).
3. gsm wireless warning device according to claim 1, it is characterized in that: described power circuit (1) be transformer output terminal through one by 4 diodes (the power rectifier voltage stabilizing chip (U5) that the full-bridge rectification unit of D4~D7) form is connected with its output terminal constitutes, the input end of described power rectifier voltage stabilizing chip (U5) and be connected to 2 filter capacitors (C12, C13) and output terminal also and be connected to 2 filter capacitors (C14, C15).
4. gsm wireless warning device according to claim 1, it is characterized in that: described voltage detecting circuit (3) comprises phase voltage mutual inductor (31) and voltage comparator circuit (32), be to adopt phase voltage mutual inductor (31) to gather each phase voltage signal of electrical network, through voltage comparator circuit (32) and reference voltage relatively after, pass through the switching of switch switching circuit (5) again and select signal is inputed to single chip machine controlling circuit (2).
5. gsm wireless warning device according to claim 4, it is characterized in that: described phase voltage testing circuit (31) is to respond to this phase voltage signal by current transformer (B1), process diode (D1) rectification on the secondary coil of current transformer (B1), after electric capacity (C1) filtering, after resistance (R1), resistance (R20) current limliting dividing potential drop, the filtering circuit that constitutes through electric capacity (C2), electric capacity (C3) inputs to voltage comparator circuit (32) more again.
6. gsm wireless warning device according to claim 4, it is characterized in that: described voltage comparator circuit (32) is to adopt computing to amplify chip (U3), and reference voltage terminal is connected in the middle point voltage end by the drop-down resistance in series that is connected in power circuit (1)+5V (R2 and R4).
7. gsm wireless warning device according to claim 1 is characterized in that: the circuit that described analog switching circuit (5) is made up of analog switch chip (U2).
8. gsm wireless warning device according to claim 1, it is characterized in that: the circuit that described optically-coupled disconnector circuit (4) is made up of photoelectrical coupler (T1), divider resistance (R17) and pull-up resistor (R18), the output terminal of photoelectrical coupler (T1) is connected in analog switching circuit (5).
9. gsm wireless warning device according to claim 1 is characterized in that: the wireless communication line that described GSM radiating circuit (6) is made up of GSM chip (U4).
10. gsm wireless warning device according to claim 1 is characterized in that: also comprise alarm lamp (7), its input is connected in single chip machine controlling circuit (2), is made of light emitting diode (LED1) and resistance (R16).
CN2009201941416U 2009-09-02 2009-09-02 GSM wireless warning device used for electrical power unit CN201477695U (en)

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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101976491A (en) * 2010-10-18 2011-02-16 江苏省电力公司宜兴市供电公司 Power equipment burglar alarm
CN102183704A (en) * 2011-02-23 2011-09-14 广州邦讯信息系统有限公司 An antitheft sensor for a transformer
CN102914688A (en) * 2011-08-01 2013-02-06 冠捷投资有限公司 Electronic system, device with voltage detecting and warning functions, and voltage detection circuit
CN103456129A (en) * 2013-08-29 2013-12-18 江门市海星游艇制造有限公司 Comprehensive failure warning system
CN103872751A (en) * 2012-12-18 2014-06-18 中怡(苏州)科技有限公司 Power supply device and wireless network communication system
CN104408852A (en) * 2014-09-05 2015-03-11 国家电网公司 Power distribution transformer antitheft auxiliary judgment method utilizing onsite acquisition and communication technology
EP2747243A3 (en) * 2012-12-18 2015-10-21 Sercomm Corporation Power supply unit and wireless network communication system
CN105488936A (en) * 2016-01-22 2016-04-13 格利尔数码科技股份有限公司 Perimeter intrusion detection and alarm device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101976491A (en) * 2010-10-18 2011-02-16 江苏省电力公司宜兴市供电公司 Power equipment burglar alarm
CN102183704A (en) * 2011-02-23 2011-09-14 广州邦讯信息系统有限公司 An antitheft sensor for a transformer
CN102914688A (en) * 2011-08-01 2013-02-06 冠捷投资有限公司 Electronic system, device with voltage detecting and warning functions, and voltage detection circuit
CN103872751A (en) * 2012-12-18 2014-06-18 中怡(苏州)科技有限公司 Power supply device and wireless network communication system
EP2747243A3 (en) * 2012-12-18 2015-10-21 Sercomm Corporation Power supply unit and wireless network communication system
CN103456129A (en) * 2013-08-29 2013-12-18 江门市海星游艇制造有限公司 Comprehensive failure warning system
CN104408852A (en) * 2014-09-05 2015-03-11 国家电网公司 Power distribution transformer antitheft auxiliary judgment method utilizing onsite acquisition and communication technology
CN105488936A (en) * 2016-01-22 2016-04-13 格利尔数码科技股份有限公司 Perimeter intrusion detection and alarm device

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100519

Termination date: 20120902