CN106781157A - Anti-theft device for transformer and system - Google Patents

Abstract

The invention provides a transformer anti-theft device and system, relating to the technical field of power equipment safety. The transformer anti-theft device includes a signal acquisition module, a detection device, an image acquisition device, a microprocessor and an audible and visual alarm module. The detection device detects obstacles, generates an image acquisition start signal and a first alarm start signal, and the image collector starts image acquisition according to the image acquisition start signal, generates a second alarm start signal and image information, and the microprocessor reads and judges the signal acquisition module The collected voltage signal and current signal generate the third alarm start signal and alarm information, and send the alarm information and image information to the monitoring platform, and the sound and light alarm module starts to whistle and flash lights. The technical solution alleviates the technical problems of single anti-theft function and poor anti-theft effect in the prior art, implements multiple protections for electric equipment, and enriches the functions of the anti-theft device.

Description

Transformer anti-theft device and system

technical field

The invention relates to the technical field of power equipment safety, in particular to a transformer anti-theft device and system.

Background technique

Our country implements the electrification project of central villages and motor wells to further enhance the structure of distribution network and improve the insulation level of lines. Electric well power projects in remote rural areas, especially distribution transformers in remote field wells, are located in remote areas with no one living in the surrounding area, and are prone to theft of power facilities such as distribution transformers, integrated power distribution cabinets, and cables.

At present, according to the technical standards of the motorized well power supply project, the distribution transformers of the newly built motorized well power supply project are installed in the form of a transformer and a comprehensive power distribution cabinet (JP cabinet for short) installed on the column, without a power distribution room, which saves space. land, but the transformer and JP cabinet are also exposed outdoors, which are easy to be stolen, and the existing anti-theft measures for power distribution rooms cannot be adopted. Therefore, the anti-theft method based on the transformer characteristic monitoring technology shows its advantages in a wide range of applicable scenarios.

In the process of realizing the present invention, the inventors have found that there are at least the following problems in the prior art: the existing anti-theft devices for power system equipment have simple functions and poor anti-theft effects, and there is no early warning response to malicious damage to monitoring equipment or anti-theft devices. The alarm is activated after the theft occurs, and the opportunity of obtaining evidence is missed, which makes it difficult to recover the loss in the later stage, and the detection equipment of the anti-theft device has a monitoring dead angle, which makes it difficult to provide comprehensive monitoring of the target device. Therefore, the existing anti-theft technology has a single anti-theft function , The technical problem of poor anti-theft effect.

Contents of the invention

In view of this, the object of the present invention is to provide a transformer anti-theft device and system to alleviate the technical problems of single anti-theft function and poor anti-theft effect existing in the existing anti-theft technology.

In the first aspect, an embodiment of the present invention provides a transformer anti-theft device, including: a signal acquisition module, a detection device, an image acquisition device, a microprocessor, and an audible and visual alarm module;

The signal acquisition module, the image collector, and the sound and light alarm module are respectively connected to the microprocessor;

At least two detectors in the detection device are respectively installed in different positions in the transformer, and the detection devices are respectively connected with the microprocessor and the image collector;

The signal acquisition module acquires the voltage signal and current signal of the transformer;

The detection device detects obstacles, and generates an image acquisition start signal and a first alarm start signal;

The image collector starts image acquisition according to the image acquisition start signal, and generates a second alarm start signal and image information;

The microprocessor reads and judges the voltage signal and the current signal, and generates a third alarm activation signal;

The microprocessor also generates alarm information, and sends the alarm information and the image information to the monitoring platform;

The acousto-optic alarm module activates whistle and light flashing according to the first alarm activation signal, the second alarm activation signal or the third alarm activation signal.

With reference to the first aspect, the embodiment of the present invention provides a first possible implementation manner of the first aspect, wherein the detection device includes a first detector, a second detector, and a detection alarm;

The first detector and the second detector are respectively installed on the transformer and are located at different heights;

The first detector and the second detector simultaneously transmit detection signals and receive reflected signals;

The detection alarm device generates and sends the image acquisition start signal and the first alarm start signal.

With reference to the first aspect, the embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein the image collector includes an operation monitoring circuit and a camera;

The operation monitoring circuit monitors the operation state of the image collector, and generates the second alarm activation signal;

The camera starts image acquisition according to the image acquisition start signal to generate the image information.

With reference to the first aspect, the embodiment of the present invention provides a third possible implementation manner of the first aspect, wherein the signal acquisition module includes: a voltage signal collector and a current signal collector;

The voltage signal collector collects the voltage signal of the transformer;

The current signal collector collects the current signal of the transformer.

In combination with the first aspect, the embodiment of the present invention provides a fourth possible implementation manner of the first aspect, wherein the microprocessor includes a collection signal judging module, an alarm information generating module, and a wireless transmission module;

The acquisition signal judging module reads and judges the voltage signal and the current signal, and generates the third alarm activation signal;

The alarm information generation module generates the alarm information according to the first alarm activation signal, the second alarm activation signal or the third alarm activation signal;

The wireless transmission module sends the alarm information and the image information.

With reference to the first aspect, the embodiment of the present invention provides a fifth possible implementation manner of the first aspect, wherein the sound and light alarm module includes: an alarm and a strobe light;

The alarm starts to whistle according to the first alarm activation signal, the second alarm activation signal or the third alarm activation signal;

The flashing light starts flashing according to the first alarm activation signal, the second alarm activation signal or the third alarm activation signal.

With reference to the first aspect, the embodiment of the present invention provides a sixth possible implementation manner of the first aspect, which further includes an infrared detector;

The infrared detector is connected with the microprocessor;

When the target object appears within the monitoring range, the infrared detector generates the image acquisition start signal and sends it to the microprocessor.

In the second aspect, the embodiment of the present invention also provides a transformer anti-theft system, including: a transformer, a monitoring platform, and the above-mentioned transformer anti-theft device;

The transformer anti-theft device is assembled on the outside of the transformer and connected with the transformer;

The monitoring platform receives, displays and stores the image information and alarm information sent by the transformer anti-theft device.

With reference to the second aspect, the embodiment of the present invention provides a first possible implementation manner of the second aspect, which further includes a controller;

The controller sends a control signal to the microprocessor of the transformer anti-theft device to control the opening or closing of the transformer anti-theft device.

With reference to the second aspect, the embodiment of the present invention provides a second possible implementation manner of the second aspect, which further includes a user terminal;

The user terminal reads the alarm information stored on the monitoring platform.

The embodiment of the present invention brings the following beneficial effects: the transformer anti-theft device provided by the embodiment of the present invention includes a signal acquisition module, a detection device, an image collector, a microprocessor, and an acousto-optic alarm module, wherein the detection device detects obstacles, When an obstacle appears within the monitoring range, an image acquisition start signal is generated, and when the detection device fails or is damaged and cannot work normally, a first alarm start signal is generated. The image collector starts image acquisition according to the image acquisition start signal, and generates image information. When the image collector fails or is damaged and cannot work normally, a second alarm start signal is generated. The microprocessor reads and judges the transformer voltage signal and current signal collected by the signal collection module, and generates a third alarm start signal when the signal is abnormal. The microprocessor also generates alarm information, and sends the alarm information and image information to the monitoring platform, and the sound and light alarm module starts to whistle and flash lights according to the first alarm activation signal, the second alarm activation signal or the third alarm activation signal. The technical scheme combines the obstacle blocking alarm with the transformer characteristic parameter abnormal alarm, which enriches the functions of the anti-theft device. Compared with traditional monitoring and alarming, the image acquisition device adopts the induction start method, which saves electricity while ensuring the monitoring effect and avoids waste of resources, and the image information is transmitted to the monitoring platform in real time, providing a reliable basis for later evidence collection. The technical solution implements multiple protections for electric equipment, which alleviates the technical problems of single anti-theft function and poor anti-theft effect existing in the existing anti-theft technology.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the above-mentioned objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Fig. 1 is a structural schematic diagram of a transformer anti-theft device provided by an embodiment of the present invention;

Fig. 2 is a structural diagram of a transformer anti-theft device provided by an embodiment of the present invention;

Fig. 3 is a working principle diagram of the detection device in the transformer anti-theft device provided by the embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a voltage transformation anti-theft system provided by an embodiment of the present invention.

icon:

100-transformer anti-theft device; 110-signal acquisition module; 111-voltage signal collector; 112-current signal collector; 120-detection device; 121-first detector; 122-second detector; 123-detection alarm 130-image collector; 131-operation monitoring circuit; 132-camera; 140-microprocessor; 141-acquisition signal judgment module; 142-alarm information generation module; 143-wireless transmission module; 150-sound and light alarm module; 151-alarm; 152-strobe light; 160-infrared detector; 200-transformer; 300-monitoring platform; 400-controller; 500-user terminal.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

At present, the existing anti-theft devices for power system equipment have simple functions and poor anti-theft effects. There is no early warning response to malicious damage to monitoring equipment or anti-theft devices. The alarm is often activated after the theft occurs, which misses the opportunity to obtain evidence and leads to later recovery. Loss is difficult, and the detection equipment of the anti-theft device has monitoring dead angles, so it is difficult to provide comprehensive monitoring of the target equipment. Based on this, the transformer anti-theft device and system provided by the embodiment of the present invention can implement multiple protections for power equipment, enriching the anti-theft function of the device.

Referring to FIG. 1 , it is a schematic structural diagram of a transformer anti-theft device provided by an embodiment of the present invention. An embodiment of the present invention provides a transformer anti-theft device 100 , including: a signal acquisition module 110 , a detection device 120 , an image acquisition device 130 , a microprocessor 140 and an audible and visual alarm module 150 .

The signal acquisition module, the image acquisition device and the sound and light alarm module are respectively connected with the microprocessor. Specifically, the output end of the signal acquisition module and the image collector is connected with the input end of the microprocessor, and the sound and light alarm module is connected with the output end of the microprocessor.

At least two detectors in the detection device are respectively installed in different positions in the transformer, and the detection device is respectively connected with the microprocessor and the image collector. Specifically, the output end of the detection device is connected to the input end of the image collector. The casing of the transformer is provided with a card slot for installing the detection device, which enhances the concealment of the detection device and reduces the risk of malicious damage to the detection device. The detection device can predict the danger according to the detected obstacles, so as to start the image collector connected to it in time.

Referring to FIG. 2 , it is a structural diagram of a transformer anti-theft device provided by an embodiment of the present invention. In the transformer anti-theft device provided by the embodiments of the present invention, the detection device detects obstacles, and generates an image acquisition start signal and a first alarm start signal. The detection device detects the surrounding environment. When an obstacle falls within the monitoring range of the detection device, the detection device senses the obstacle and automatically generates an image acquisition start signal. When the detection device breaks down or is maliciously damaged during operation and cannot work normally, the detection device generates a first alarm activation signal to directly initiate an alarm response.

Referring to FIG. 3 , it is a working principle diagram of the detection device in the transformer anti-theft device provided by the embodiment of the present invention. Specifically, the detection device includes a first detector 121 , a second detector 122 and a detection alarm 123 . The first detector and the second detector are respectively installed on the transformer and are located at different heights.

The first detector and the second detector simultaneously transmit detection signals and receive reflection signals. The first detector and the second detector emit detection signals at the same time. Since the first detector and the second detector are located at different heights, and the detection signals are emitted in a fan shape, two horizontal planes are formed in the detection direction of the detector. When there is an obstacle When an object is placed within the detection range, the propagation of the detection signal is reflected when it encounters obstacles, and the inductive receiving device in the detector can receive the reflected signal after encountering the obstacle. Specifically, the first detector and the second detector may be infrared detectors. The focal length of the infrared detector lens is 2.8mm, and the detection distance is 4m.

The detection alarm device generates and sends an image acquisition start signal and a first alarm start signal. When the detector detects that there is an obstacle within the detection range, the electrical equipment is in danger of being stolen, and the detection alarm generates an image acquisition start signal, and sends the signal to the image collector to start image acquisition. When the monitoring circuit in the detection alarm detects that the detection device fails or is damaged by human beings and cannot work normally, the detection alarm generates the first alarm start signal, and then the anti-theft device starts to alarm.

In the implementation of this embodiment, the above-mentioned first detector and the second detector judge that the obstacle is placed within the detection range, and there are multiple judgment methods, such as:

Method 1. In the above judgment method, the first detector and the second detector transmit detection signals at the same time, and the first detector first receives the reflected signal, indicating that there is an obstacle within the detection range of the first detector at this time, and then the second detector The detector receives the reflected signal, and the reflected signal received by the first detector does not disappear, indicating that there is an obstacle in the detection range of the second detector at this time, and it is in the detection range of the first detector and the second detector at the same time At this time, the obstacle may be an insulating rod-shaped object or the like that blocks the detector, and there is a risk of theft of the electrical equipment.

Method 2: In the above judgment method, the first detector and the second detector transmit detection signals at the same time, and the first detector first receives the reflected signal, indicating that there is an obstacle within the detection range of the first detector at this time, and then the second detector The detector receives the reflection signal, and the reflection signal received by the first detector disappears, indicating that the obstacle only appears within the detection range of the second detector at this time, and the obstacle may be a remote control aircraft or similar object blocking the detector at this time. Electrical equipment is at risk of being stolen.

In the implementation of this embodiment, the above-mentioned detectors can also be three. When there are three detectors, the first detector and the second detector are arranged according to the positions in the above-mentioned embodiment, that is, the first detector and the second detector The two detectors are assembled inside the transformer and are located at different heights. The third detector is located on the top of the transformer, the detection plane is a vertical plane, and placed on the switch operation side of the drop-out fuse or closing switch. During the process of opening or closing the switch, the moving contact of the switch will not fall within the detection plane emitted by the third detector. Avoid triggering the third detector when the switch is in normal operation due to the need of the protection circuit. The first detector and the second detector can detect obstacles originating from one side of the transformer,

In the implementation of this embodiment, the above-mentioned detectors can also be installed on both sides of the transformer when the number is multiple, and signal detection is performed on both sides of the transformer at the same time, which ensures the safety of both sides of the transformer and prevents the perpetrators from cutting off from unconventional angles. power supply lines, thereby implementing theft.

This technical solution is the first protection of the transformer anti-theft device. During the theft process, perpetrators usually use tools and equipment such as insulating rods or remote control aircraft to destroy the cables at the upper end of the transformer or close the drop-out fuse above the transformer. The multi-detector detection device conducts all-round and multi-angle monitoring of the key positions of the transformer to ensure the safety of the transformer. This technical solution can detect the early theft of theft, record evidence and issue an alarm in time, and advance the anti-theft early warning work before the theft occurs , effectively reduce property losses, and effectively improve the anti-theft performance of the anti-theft device.

The transformer anti-theft device provided by the embodiment of the present invention further includes an infrared detector 160 connected to the input terminal of the microprocessor. The focal length of the infrared detector lens is 4.0mm, and the detection distance is 6m.

Specifically, when a suspicious target appears within the monitoring range of the infrared detector, the infrared detector judges that the transformer is at risk of being stolen at this time, and generates an image acquisition start signal and sends it to the microprocessor, and the microprocessor starts the image acquisition device Video recording and real-time monitoring of on-site images.

In the transformer anti-theft device provided by the embodiment of the present invention, the image collector starts image collection according to the image collection start signal, and generates a second alarm start signal and image information.

Specifically, the image collector 130 includes a running monitoring circuit 131 and a camera 132 . The operation monitoring circuit is connected with the camera to monitor the operation status of the camera.

The operation monitoring circuit monitors the operation state of the image collector, and generates a second alarm activation signal. Specifically, when the image collector fails or is damaged and cannot work normally, the operation monitoring circuit generates a second alarm activation signal, and then the anti-theft device activates an alarm.

The camera starts image acquisition according to the image acquisition start signal, and generates image information. Specifically, after the image collector receives the image acquisition start signal sent from the detection device or the infrared detector to the microprocessor, it starts the camera that affects the collector to shoot, and generates dynamic images within the monitoring range and static images output at a certain time interval. The above image information will be transmitted to the monitoring platform in real time, providing a reliable basis for the recovery of property losses in the later period.

This technical solution is the second protection of the transformer anti-theft device. If someone approaches the detection area below the transformer, this technical solution can find that the equipment is in danger of being stolen, record evidence and issue an alarm in time, further improving the anti-theft device. Anti-theft function.

In the transformer anti-theft device provided by the embodiment of the present invention, the signal acquisition module collects the voltage signal and current signal of the transformer.

Specifically, the signal collection module 110 includes a voltage signal collector 111 and a current signal collector 112 . Transformer is a device for transforming AC voltage, current and impedance. Commonly used AC three-phase power supply and three-phase load have two connection methods, which are star or delta connection. U, V, and W are called three-phase, and the phase-to-phase The voltage between the lines is the line voltage, the domestic voltage is 380V, the phase difference is 120 degrees, the phase and neutral line is called the phase voltage, and the domestic voltage is 220V. The neutral line (also called neutral line, zero phase) is the center line of the star connection. When the loads of each phase are equal, there is no voltage and current, and when the single-phase load is not equal to the other two-phase loads, or the three phases are not When waiting, the load current will balance the overall circuit, so as not to damage the electrical appliances. When any phase of the high-voltage side or the low-voltage side is broken, it will cause a phase loss. For equipment that requires three-phase power supply (such as a motor), if one phase is missing, a rotating magnetic field cannot be formed, and the motor cannot operate normally, and the motor will be burned in severe cases.

The voltage signal collectors are respectively installed at the high-voltage input end and the low-voltage output end of the transformer, and collect the voltage signals of each phase of the transformer. Specifically, the voltage signal collected by the voltage signal collector may be the phase voltage on each phase winding or each phase load, or the line voltage between the terminal lines.

Similarly, the current signal collectors are respectively installed at the high-voltage input end and the low-voltage output end of the transformer to collect various current signals of the transformer. Specifically, the current signal collected by the current signal collector may be the line current flowing through the terminal wire, or the phase current flowing through each phase winding or each phase load.

Further, in the transformer anti-theft device provided by the embodiment of the present invention, the microprocessor reads the voltage signal and current signal collected by the signal acquisition module, and judges whether the voltage signal and current signal are within the normal range of the transformer. Three alarm start signals.

Specifically, the microprocessor 140 includes a collection signal judging module 141 , an alarm information generating module 142 and a wireless transmission module 143 .

The acquisition signal judging module of the microprocessor reads and judges the voltage signal and the current signal, and generates a third alarm start signal. For example, the collected voltage signal is the phase voltage between each phase and the zero phase. When the transformer is operating normally, the voltage signal is 220V. If there is a phase loss, the voltage signal of the missing phase will drop to zero, which is a voltage anomaly. In the same way, when the transformer is running normally, the current signal is not zero. If there is a phase failure, the circuit cannot form a loop, and the current signal of the missing phase drops to zero, which is an abnormal current situation. The acquisition signal judging module generates a third alarm start signal when the judging result is abnormal.

This technical solution is the third protection of the transformer anti-theft device. If someone cuts the power line above the transformer or closes the closing switch, this solution can detect the voltage and current changes in the transformer, judge that the equipment is in danger of being stolen, and issue an alarm in time , improve the anti-theft function of the anti-theft device.

Further, the microprocessor also generates alarm information, and sends the alarm information and image information to the monitoring platform.

Specifically, the microprocessor is internally provided with an alarm information generating module. When any one of the first alarm activation signal generated by the detection device, the second alarm activation signal generated by the image collector, or the third alarm activation signal generated by the microprocessor When generated, it means that the transformer is in danger of being stolen. The alarm information generation module generates alarm information. The alarm information includes alarm time, alarm device number, alarm device address and alarm trigger signal source, wherein the alarm trigger signal source is the alarm trigger signal. It is the first alarm activation signal, the second alarm activation signal or the third alarm activation signal.

The wireless transmission module of the microprocessor is connected with the alarm information generation module, and the wireless transmission module reads the alarm information, and sends the alarm information to the monitoring platform, prompting relevant operators to conduct on-the-spot investigation. The wireless transmission module adopts wireless communication technology, such as satellite antenna transmission or wireless data transmission. The wireless transmission module also sends the image information collected by the image collector to the monitoring platform, which provides a reliable basis for the recovery of property losses in the later stage.

In the transformer anti-theft device provided by the embodiment of the present invention, the sound and light alarm module 150 activates the whistle and the light flashing according to the first alarm activation signal, the second alarm activation signal or the third alarm activation signal.

Specifically, the sound and light alarm module 150 includes an alarm 151 and a flashing light 152 .

The alarm starts to whistle according to the first alarm activation signal, the second alarm activation signal or the third alarm activation signal. At the same time, the strobe lights start to flash according to the first alarm activation signal, the second alarm activation signal or the third alarm activation signal. The whistle and flashing lights can serve as a warning to the perpetrators, and remind the guards or patrol personnel around the power equipment to stop, call the police or ask for help in time.

Referring to FIG. 4 , it is a schematic structural diagram of a voltage transformation anti-theft system provided by an embodiment of the present invention. The embodiment of the present invention also provides a transformer anti-theft system, including: a transformer 200 , a monitoring platform 300 and the above-mentioned transformer anti-theft device 100 .

Specifically, the transformer anti-theft device is assembled outside the transformer and connected with the transformer. The transformer anti-theft device can be installed on the upper part of the transformer heat sink shell, and the position is relatively hidden to avoid malicious damage.

The monitoring platform in the anti-theft system receives and displays the image information and alarm information sent by the anti-theft device of the transformer. The monitoring platform includes communication devices and display equipment, and the staff of the monitoring platform can receive and monitor the abnormal conditions of the transformer in real time. The monitoring platform also includes storage equipment. The monitoring platform can store the image information and alarm information sent by the anti-theft device of the transformer in real time, so as to prevent the situation that the recorded data cannot be restored after the anti-theft device is damaged, which facilitates evidence collection after theft and is conducive to Recovery of property damage.

The transformer anti-theft system provided by the embodiment of the present invention further includes a controller 400 . When maintenance personnel perform routine maintenance or repairs, they need to be close to the transformer for operation. At this time, the anti-theft device needs to be turned off to prevent false alarms. The maintenance personnel hold the controller and send a control signal to the microprocessor of the transformer anti-theft device, and the control signal is used to close the transformer anti-theft device. After the overhaul is completed, the maintenance personnel will send a control signal through the controller to turn on the anti-theft device of the transformer, and the anti-theft device will continue to monitor.

The transformer anti-theft system provided by the embodiment of the present invention further includes a user terminal 500 . Personnel related to power equipment monitoring can be equipped with the user terminal, which can be an independent communication device, such as a walkie-talkie, a communicator, etc., or an intelligent mobile terminal, such as a mobile phone, a tablet computer, etc. When the risk of power equipment being stolen is high, the monitoring platform receives the alarm information, and the power equipment management personnel can read the alarm information stored in the monitoring platform through the user terminal, so that relevant personnel can get the alarm information in time and respond.

The transformer anti-theft device provided by the embodiment of the present invention includes a signal acquisition module, a detection device, an image acquisition device, a microprocessor, and an acousto-optic alarm module, wherein the detection device detects obstacles, and when an obstacle appears within the monitoring range, an image is generated The starting signal is collected, and when the detection device fails or is destroyed and cannot work normally, a first alarm starting signal is generated. The image collector starts image acquisition according to the image acquisition start signal, and generates image information. When the image collector fails or is damaged and cannot work normally, a second alarm start signal is generated. The microprocessor reads and judges the transformer voltage signal and current signal collected by the signal collection module, and generates a third alarm start signal when the signal is abnormal. The microprocessor also generates alarm information, and sends the alarm information and image information to the monitoring platform, and the sound and light alarm module starts to whistle and flash lights according to the first alarm activation signal, the second alarm activation signal or the third alarm activation signal. The technical scheme combines the obstacle blocking alarm with the transformer characteristic parameter abnormal alarm, which enriches the functions of the anti-theft device. Compared with traditional monitoring and alarming, the image acquisition device adopts the induction start method, which saves electricity while ensuring the monitoring effect and avoids waste of resources, and the image information is transmitted to the monitoring platform in real time, providing a reliable basis for later evidence collection. The technical solution implements multiple protections for electric equipment, which alleviates the technical problems of single anti-theft function and poor anti-theft effect existing in the existing anti-theft technology.

Each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may physically exist separately, or two or more units may be integrated into one unit. In addition, in the description of the embodiments of the present invention, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes. .

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

Finally, it should be noted that: the above-described embodiments are only specific implementations of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting them, and the scope of protection of the present invention is not limited thereto, although referring to the foregoing The embodiment has described the present invention in detail, and those skilled in the art should understand that any person familiar with the technical field can still modify the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention Changes can be easily thought of, or equivalent replacements are made to some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the scope of the present invention within the scope of protection. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (10)

1. A transformer anti-theft device, characterized in that it comprises: a signal acquisition module, a detection device, an image collector, a microprocessor and an acousto-optic alarm module; The signal acquisition module, the image collector, and the sound and light alarm module are respectively connected to the microprocessor; At least two detectors in the detection device are respectively installed in different positions in the transformer, and the detection devices are respectively connected with the microprocessor and the image collector; The signal acquisition module acquires the voltage signal and current signal of the transformer; The detection device detects obstacles, and generates an image acquisition start signal and a first alarm start signal; The image collector starts image acquisition according to the image acquisition start signal, and generates a second alarm start signal and image information; The microprocessor reads and judges the voltage signal and the current signal, and generates a third alarm activation signal; The microprocessor also generates alarm information, and sends the alarm information and the image information to the monitoring platform; The acousto-optic alarm module activates whistle and light flashing according to the first alarm activation signal, the second alarm activation signal or the third alarm activation signal. 2. The device according to claim 1, wherein the detection device comprises a first detector, a second detector and a detection alarm; The first detector and the second detector are respectively installed on the transformer and are located at different heights; The first detector and the second detector simultaneously transmit detection signals and receive reflected signals; The detection alarm device generates and sends the image acquisition start signal and the first alarm start signal. 3. The device according to claim 1, wherein the image collector includes an operation monitoring circuit and a video camera; The operation monitoring circuit monitors the operation state of the image collector, and generates the second alarm activation signal; The camera starts image acquisition according to the image acquisition start signal to generate the image information. 4. The device according to claim 1, wherein the signal acquisition module comprises: a voltage signal collector and a current signal collector; The voltage signal collector collects the voltage signal of the transformer; The current signal collector collects the current signal of the transformer. 5. The device according to claim 1, wherein the microprocessor includes an acquisition signal judgment module, an alarm information generation module and a wireless transmission module; The acquisition signal judging module reads and judges the voltage signal and the current signal, and generates the third alarm activation signal; The alarm information generation module generates the alarm information according to the first alarm activation signal, the second alarm activation signal or the third alarm activation signal; The wireless transmission module sends the alarm information and the image information. 6. The device according to claim 1, wherein the sound and light alarm module comprises: an alarm and a strobe light; The alarm starts to whistle according to the first alarm activation signal, the second alarm activation signal or the third alarm activation signal; The flashing light starts flashing according to the first alarm activation signal, the second alarm activation signal or the third alarm activation signal. 7. The device according to claim 1, further comprising an infrared detector; The infrared detector is connected with the microprocessor; When the target object appears within the monitoring range, the infrared detector generates the image acquisition start signal and sends it to the microprocessor. 8. A transformer anti-theft system, characterized in that it comprises: a transformer, a monitoring platform and the transformer anti-theft device according to any one of claims 1 to 7; The transformer anti-theft device is assembled on the outside of the transformer and connected with the transformer; The monitoring platform receives, displays and stores the image information and alarm information sent by the transformer anti-theft device. 9. The system according to claim 8, further comprising a controller; The controller sends a control signal to the microprocessor of the transformer anti-theft device to control the opening or closing of the transformer anti-theft device. 10. The system according to claim 8, further comprising a user terminal; The user terminal reads the alarm information stored on the monitoring platform.