CN102436703A - Anti-theft intelligent warner of distribution transformer - Google Patents

Abstract

The present invention is an anti-theft intelligent alarm for distribution transformers. The alarm includes a light control circuit, an infrared constant detection circuit, and a remote alarm circuit; one end of the light control circuit is connected to the infrared detection circuit, and the infrared detection circuit is connected to the remote Alarm circuit, the output signal of the remote alarm circuit is transmitted to the intelligent control center of the distribution network or the electrician's mobile phone; when the transformer is stolen, the signal is immediately transmitted to the alarm transmitting circuit for remote alarm, and the on-duty personnel will arrive at the scene as soon as they get the alarm situation processing; the remote alarm uses advanced electronic technology to develop a remote alarm for transformer safety and intelligent management. It can be used to reduce transformer theft accidents, improve power supply reliability, and increase corporate and social benefits.

Description

Distribution transformer anti-theft intelligent alarm

technical field

The invention relates to a distribution transformer anti-theft intelligent alarm technology, which is applied to a remote alarm when a power supply transformer of a distribution network is stolen.

Background technique

At present, with the rapid development of industrial and agricultural production, the rapid improvement of the national economy, the continuous improvement of people's living standards, the unprecedented development of the power industry, and the rapid development of the national power grid construction. Electricity is transformed and sent to thousands of households through distribution transformers. Currently operating distribution transformers cannot be monitored in real time, especially when rural distribution transformers are basically stolen, and the user will notify the maintenance personnel to carry out equipment maintenance. It takes a long time to deal with delays and has a great impact on users’ power outages. Therefore, the reliability of power supply is low and the equipment damage rate is high, which cannot meet the requirements of the continuous improvement of people’s living standards. In the event of a theft and damage accident, the maintenance personnel will go to the scene to stop and repair in time, reduce the transformer theft accident, increase the power supply, and increase the enterprise and social benefits.

Contents of the invention

The invention aims at the deficiencies of the existing anti-theft technology, thereby providing an anti-theft intelligent alarm for distribution transformers with scientific design and low cost.

In order to achieve the above object, the present invention provides a distribution transformer anti-theft intelligent alarm, which includes a light control circuit, an infrared detection circuit, and a remote alarm circuit; one end of the light control circuit is connected to the infrared detection circuit, the infrared detection circuit The remote alarm circuit is connected, and the output signal of the remote alarm circuit is transmitted to the distribution network intelligent control center or the electrician's mobile phone.

The light control circuit includes a resistor, a photodiode, a transistor, and a solid state relay SSR1; the transistor has three poles, respectively B, E, and C, and the solid state relay SSR1 has four terminals, respectively is 1, 2, 3, 4;

Wherein, the B pole of the transistor is connected to the positive pole of the photodiode and one end of the resistor, the E pole of the transistor is connected to the other end of the resistor and the negative pole of the power supply, and the pole C of the transistor is connected to the terminal 2 of the solid state relay SSR1 , the terminal 1 of the solid state relay SSR1 is connected to the negative pole of the photodiode and then connected to the positive pole of the power supply, and the terminals 3 and 4 of the solid state relay SSR1 are signal output terminals.

The infrared detection circuit includes an infrared sensor IC, four resistors are respectively 3R1, 3R2, 3R3, 3R4, a capacitor is 3C, two transistors are respectively 3VT1, 3VT2, and a solid state relay SSR2; the transistor has three The poles are respectively B, E, and C. The solid state relay SSR has four terminals, which are respectively 1, 2, 3, and 4. The infrared sensor IC has three terminals, which are respectively X, Y, and Z;

Wherein, the X terminal of the infrared sensor IC is connected to one terminal of the resistor 3R1, the Y terminal of the infrared sensor IC is connected to one terminal of the resistor 3R2, and the Z terminal of the infrared sensor IC is respectively connected to the terminal of the resistor 3R2. One end of the capacitor 3C, the E pole of the transistor 3VT1, and one end of the resistor 3R4 are connected to the negative pole of the DC power supply, and the B pole of the transistor 3VT1 is respectively connected to the other end of the capacitor 3C, the The other end of the resistor 3R2 is connected, the C pole of the triode 3VT1 is respectively connected with one end of the resistor 3R3 and the B pole of the transistor 3VT2, and the E pole of the transistor 3VT2 is connected with the other end of the resistor 3R4, The C pole of the transistor 3VT2 is connected to the terminal 2 of the solid state relay SSR2, the terminal 1 of the solid state relay SSR2 is connected to the other terminal of the resistor 3R1, and the other terminal of the resistor 3R3 is connected to the positive pole of the DC power supply , the signal output terminals of terminals 3 and 4 of the solid state relay SSR2.

The remote alarm circuit is a fiber optic communication cable circuit, including a light emitting circuit and an optical fiber cable; the light emitting circuit converts the distribution transformer theft signal into an optical signal, and transmits it to the distribution intelligent control center through the optical fiber cable; when the transformer When a theft occurs, the remote alarm circuit will encode according to regulations through the transmitting circuit of the optical transceiver, convert the theft signal into an optical signal, and transmit it to the power distribution intelligent control center through an optical fiber cable.

The remote alarm circuit is a wireless alarm transmitting circuit, including a signal input circuit, an encoding circuit, and a transmitting circuit; the output of the signal input circuit is connected to the encoding circuit, and the encoding circuit is connected to the transmitting circuit, and the transmitting circuit transmits the alarm signal to Distribution network power supply intelligent control center, or electrician's mobile phone.

The distribution transformer anti-theft intelligent alarm is developed by using advanced electronic technology to manage the anti-theft intelligent alarm for distribution transformers. Compared with the prior art, the present invention has outstanding substantive features and significant progress. , the distribution transformer anti-theft protection technology is advanced, the design is reasonable, and the distribution transformer anti-theft intelligent management is ideally realized, which will play a positive role in ensuring the safe operation of the power grid. The specific advantages of the distribution transformer anti-theft intelligent alarm:

The anti-theft intelligent alarm for distribution transformers of the present invention, when the transformer is stolen and damaged, the maintenance personnel will stop and repair it in time at the scene, reduce transformer theft accidents, increase power supply, and increase enterprise and social benefits.

The safety operation management of distribution network equipment is strengthened, the reliability of power supply is greatly improved, and the overall level of safety management of distribution network is improved.

Description of drawings

Fig. 1 is a block diagram of an anti-theft intelligent alarm for a distribution transformer of the present invention;

Fig. 2 is the light control circuit wiring diagram of the present invention;

Fig. 3 is a wiring diagram of the infrared detection circuit of the present invention;

Fig. 4 is the optical fiber communication cable circuit frame of the present invention;

Fig. 5 is a block diagram of the wireless alarm circuit of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

Fig. 1 is a block diagram of the distribution transformer anti-theft intelligent alarm of the present invention, the alarm includes a light control circuit 1, an infrared detection circuit 2, and a remote alarm circuit 3; the light control circuit is connected to the infrared detection circuit, and the infrared detection circuit is connected to the The remote alarm circuit is described, and the output signal of the remote alarm circuit is transmitted to the distribution network intelligent control center or the electrician's mobile phone.

The distribution transformer anti-theft intelligent alarm is installed above the transformer stand. During the daytime, the photosensitive diode of the light control circuit is not conducting, the light control circuit is not conducting, the relay is in the disconnected state, and the infrared detection circuit is not working. When the light is dark, the photosensitive diode of the light control circuit is turned on, the relay of the light control circuit is closed, and the infrared detection circuit works. When someone walks over, the infrared detection circuit collects the signal, the relay closes, and the collected signal is transmitted to the remote alarm circuit, and the output signal of the remote alarm circuit is transmitted to the distribution network intelligent control center or the electrician's mobile phone, and the on-duty personnel get the alarm situation Immediately go to the scene for processing.

Fig. 2 is the light control circuit wiring diagram of the present invention; The light control circuit comprises a resistor 2R, a photodiode 2VD, a transistor 2V, and a solid state relay SSR1; the transistor has three poles, respectively B, E, C, the solid state relay SSR1 has four terminals, respectively 1, 2, 3, 4;

Wherein, the B pole of the transistor is connected to the positive pole of the photodiode and one end of the resistor, the E pole of the transistor is connected to the other end of the resistor and the negative pole of the power supply, and the pole C of the transistor is connected to the terminal 2 of the solid state relay SSR1 , the terminal 1 of the solid state relay SSR1 is connected to the negative pole of the photodiode and then connected to the positive pole of the power supply, and the terminals 3 and 4 of the solid state relay SSR1 are signal output terminals.

During the daytime, the photosensitive diode of the light control circuit is not conducting, the relay of the light control circuit is in the off state, and the infrared detection circuit does not work. When the light is dark, the photosensitive diode of the light control circuit is turned on, the relay of the light control circuit is closed, and the infrared detection circuit works.

The light control circuit of the distribution transformer anti-theft intelligent alarm controls the infrared detection circuit to work at night.

Fig. 3 is the wiring diagram of the infrared detection circuit of the present invention; the infrared detection circuit comprises an infrared sensor IC, 4 resistors are respectively 3R1, 3R2, 3R3, 3R4, a capacitor is 3C, and two transistors are respectively 3VT1, 3VT2, A solid state relay SSR2; the crystal triode has three poles, respectively B, E, and C, the solid state relay SSR has four terminals, respectively 1, 2, 3, and 4, and the infrared sensor IC has three terminals Head, respectively X, Y, Z;

Wherein, the X terminal of the infrared sensor IC is connected to one terminal of the resistor 3R1, the Y terminal of the infrared sensor IC is connected to one terminal of the resistor 3R2, and the Z terminal of the infrared sensor IC1 is respectively connected to the terminal of the resistor 3R2. One end of the capacitor 3C, the E pole of the transistor 3VT1, and one end of the resistor 3R4 are connected to the negative pole of the DC power supply, and the B pole of the transistor 3VT1 is respectively connected to the other end of the capacitor 3C, the The other end of the resistor 3R2 is connected, the C pole of the triode 3VT1 is respectively connected with one end of the resistor 3R3 and the B pole of the transistor 3VT2, and the E pole of the transistor 3VT2 is connected with the other end of the resistor 3R4, The C pole of the crystal triode 3VT2 is connected to the 2 terminals of the solid state relay SSR2, and the 1 terminal of the solid state relay SSR2 is respectively connected to the other terminal of the resistor 3R1, and then the other terminal of the resistor 3R3 is connected to a DC power supply Positive pole, terminals 3 and 4 of the solid state relay SSR2 are signal output terminals.

During the daytime, the photosensitive diode of the light control circuit is not conducting, the light control circuit is not conducting, the relay is in the off state, and the infrared detection circuit does not work. When the light is dark, the photosensitive diode of the light control circuit is turned on, the relay of the light control circuit is in the closed state, and the infrared detection circuit works.

The infrared sensor IC can collect signals from a distance of 10 meters around the transformer.

Fig. 4 is a block diagram of the optical fiber communication cable circuit of the present invention; it includes an optical transmitting circuit 41 and an optical fiber cable 42; the optical transmitting circuit converts the theft signal of the distribution transformer into an optical signal, and transmits it to the distribution intelligent control center through the optical fiber cable.

When the distribution transformer is stolen, the remote alarm is coded according to the regulations through the transmitting circuit of the optical transceiver, and the theft signal is converted into an optical signal and transmitted to the distribution intelligent control center through the optical fiber cable.

Fig. 5 is a block diagram of the wireless alarm circuit of the present invention, the wireless alarm transmitting circuit includes a signal input circuit 51, an encoding circuit 52, and a transmitting circuit 53; the signal input circuit is connected with the signal judging circuit, and the signal input circuit The circuit output is connected to the coding circuit, and the coding circuit is connected to the transmitting circuit.

The wireless alarm transmitting circuit can adopt a mobile phone module or a wireless transmitting circuit.

When the operating distribution transformer is stolen, the theft signal is immediately transmitted to the transmitting circuit for remote alarm, and the theft signal is transmitted to the mobile phone of the on-duty personnel, and the on-duty personnel immediately go to the scene to deal with the alarm situation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: the present invention can still be Modifications to the specific implementation of the invention or equivalent replacement of some technical features; without departing from the spirit of the technical solution of the present invention, should be included in the scope of the technical solution claimed in the present invention.

Claims (5)

1. A distribution transformer anti-theft intelligent alarm, characterized in that: the alarm includes a light control circuit, an infrared detection circuit, and a remote alarm circuit; one end of the light control circuit is connected to the infrared detection circuit, and the infrared detection circuit is connected to the The remote alarm circuit is described, and the output signal of the remote alarm circuit is transmitted to the distribution network intelligent control center or the electrician's mobile phone. 2. The distribution transformer anti-theft intelligent alarm device according to claim 1, characterized in that: the light control circuit includes a resistor, a photodiode, a transistor, and a solid state relay SSR1; the transistor has three poles , respectively B, E, C, the solid state relay SSR1 has four terminals, respectively 1, 2, 3, 4; Wherein, the B pole of the transistor is connected to the positive pole of the photodiode and one end of the resistor, the E pole of the transistor is connected to the other end of the resistor and the negative pole of the power supply, and the pole C of the transistor is connected to the terminal 2 of the solid state relay SSR1 , the terminal 1 of the solid state relay SSR1 is connected to the negative pole of the photodiode and then connected to the positive pole of the power supply, and the terminals 3 and 4 of the solid state relay SSR1 are signal output terminals. 3. The distribution transformer anti-theft intelligent alarm device according to claim 1, characterized in that: the infrared detection circuit includes an infrared sensor IC, the four resistors are respectively 3R1, 3R2, 3R3, and 3R4, and one capacitor is 3C, The two transistors are 3VT1, 3VT2, and a solid state relay SSR2; the transistor has three poles, respectively B, E, and C, and the solid state relay SSR has four terminals, respectively 1, 2, 3, 4. The infrared sensor IC has three terminals, namely X, Y, and Z; Wherein, the X terminal of the infrared sensor IC is connected to one terminal of the resistor 3R1, the Y terminal of the infrared sensor IC is connected to one terminal of the resistor 3R2, and the Z terminal of the infrared sensor IC is respectively connected to the terminal of the resistor 3R2. One end of the capacitor 3C, the E pole of the transistor 3VT1, and one end of the resistor 3R4 are connected to the negative pole of the DC power supply, and the B pole of the transistor 3VT1 is respectively connected to the other end of the capacitor 3C, the The other end of the resistor 3R2 is connected, the C pole of the triode 3VT1 is respectively connected with one end of the resistor 3R3 and the B pole of the transistor 3VT2, and the E pole of the transistor 3VT2 is connected with the other end of the resistor 3R4, The C pole of the transistor 3VT2 is connected to the terminal 2 of the solid state relay SSR2, the terminal 1 of the solid state relay SSR2 is connected to the other terminal of the resistor 3R1, and the other terminal of the resistor 3R3 is connected to the positive pole of the DC power supply , the signal output terminals of terminals 3 and 4 of the solid state relay SSR2. 4. The distribution transformer anti-theft intelligent alarm device according to claim 1, characterized in that: the remote alarm circuit is an optical fiber communication cable circuit, including a light emitting circuit and an optical fiber cable; the light emitting circuit will steal the distribution transformer The signal is converted into an optical signal, which is transmitted to the distribution intelligent control center through the optical fiber cable; when the transformer is stolen, the remote alarm circuit is encoded according to the regulations through the transmitting circuit of the optical transceiver, and the theft signal is converted into an optical signal, which is transmitted through the optical fiber cable To distribution intelligent control center. 5. The distribution transformer anti-theft intelligent alarm device according to claim 1, characterized in that: the remote alarm circuit is a wireless alarm transmission circuit, including a signal input circuit, a coding circuit, and a transmission circuit; the signal input circuit outputs The encoding circuit is connected, the encoding circuit is connected to the transmitting circuit, and the transmitting circuit transmits the alarm signal to the distribution network power supply intelligent control center or the electrician's mobile phone.

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