CN211018397U

CN211018397U - Electric leakage monitoring system

Info

Publication number: CN211018397U
Application number: CN201921465655.0U
Authority: CN
Inventors: 李康; 沈宇宁; 农克功; 王辉
Original assignee: Guangxi Mengchuang Wisdom Technology Co ltd
Current assignee: Guangxi Mengchuang Wisdom Technology Co ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-07-14
Anticipated expiration: 2029-09-05

Abstract

The utility model discloses an electric leakage monitoring system, its characterized in that including electric leakage detection module, P L C, DTU unit, server and terminal equipment, P L C respectively with electric leakage detection module and DTU unit connection, P L C pass through the DTU unit with the server carries out two-way data transfer, terminal equipment with the server carries out two-way data transfer, whether electric leakage detection module is used for detecting instrument to leak electricity, the utility model discloses a state that overhead traveling crane is used for real-time supervision electric leakage information and can remote monitoring electric leakage information, convenient and fast can in time discover unusually, can also remote alarm when taking place the electric leakage, has avoided leading to staff's contact death because of the electric leakage.

Description

Electric leakage monitoring system

Technical Field

The utility model relates to a control technical field especially relates to an electric leakage monitoring system.

Background

The existing voltage detection devices are of various types, and surge protectors are also called surge protectors, commonly called lightning arresters and mainly used for surge overvoltage protection of various power supply systems. When the detected circuit contains surge current, a surge protector can be added to protect the safety of the leakage detection device. However, the cost of the general surge protector is high, and the cost of the detection device is increased by adopting the method. In addition, the alternating current transformer detection circuit has the functions of measurement, display, analysis and the like; the existing transformer conversion circuit is various in shape and color, but most of the existing transformer conversion circuits are complex in structure and complex in function, and under the application occasions only needing single function, the complex conversion circuit is often adopted to detect the voltage or current of the circuit, so that the cost is improved on one hand, and on the other hand, once the circuit structure is complicated, the unstable factors behind the circuit structure are increased, so that the product qualification rate is reduced invisibly.

Under some severe environments, such as occasions of aluminum plants or steel plants and the like, the traditional voltage or current detection device is difficult to detect the voltage of equipment in real time under the severe environments, particularly equipment working in a three-phase power supply can generate alternating current high voltage when electric leakage occurs, further alternating current can be generated, the generation of the electric leakage current sometimes only occurs instantly, real-time monitoring cannot be performed when the electric leakage current occurs, and remote monitoring cannot be performed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide an electric leakage monitored control system to be used for remote monitoring electric leakage information.

The technical scheme of the utility model is that an electric leakage monitoring system, including electric leakage detection module, P L C, DTU unit, server and terminal equipment, P L C respectively with electric leakage detection module and DTU unit are connected, P L C pass through the DTU unit with the server carries out two-way data transfer, terminal equipment with the server carries out two-way data transfer, electric leakage detection module is used for detecting instrument whether electric leakage.

Preferably, the terminal device comprises a mobile phone, a tablet and a computer.

Preferably, the DTU unit is a 4G DTU or a 5G DTU.

Preferably, the leakage detection module comprises a mutual inductor, a current-to-voltage module and a voltage-to-frequency module, and the mutual inductor, the current-to-voltage module and the voltage-to-frequency module are sequentially connected; the transformer is used for converting an input alternating current signal into an induced current, the current-to-voltage module is used for converting the induced current into voltage, and the voltage-to-frequency module is used for converting the voltage into frequency to be output.

Preferably, the current-to-voltage module adopts a WB5812A type alternating current-to-direct current voltage converter

Preferably, the voltage-to-frequency conversion module adopts an AD654 chip.

The utility model has the advantages that: the utility model discloses a crown block is used for real-time supervision electric leakage information and can the remote monitoring state of electric leakage information, and convenient and fast can also monitor whether electric leakage of high-pressure AC equipment, can also the remote alarm when taking place the electric leakage, has avoided leading to staff's contact to die because of the electric leakage.

Drawings

Fig. 1 is a schematic diagram of a leakage monitoring system of the present invention

Fig. 2 is the utility model discloses a schematic diagram of electric leakage monitored control system monitoring instrument

FIG. 3 is a schematic diagram of a second leakage monitoring system of the present invention

Fig. 4 is a schematic diagram of a monitoring instrument of a second leakage monitoring system of the present invention

Detailed Description

The following describes an implementation structure of the present invention with reference to the drawings.

Example one

As shown in fig. 1 and 2, an electric leakage monitoring system comprises an electric leakage detection module, a P L C, DTU unit, a server and a terminal device, wherein the P L C is respectively connected with the electric leakage detection module and the DTU unit, the P L C is in bidirectional data transmission with the server through the DTU unit, the terminal device is in bidirectional data transmission with the server, the electric leakage detection module is used for detecting whether electric leakage of an instrument occurs or not, the terminal device selects a flat plate for use in order to better remotely check related electric leakage information and the like, and the DTU unit selects a 5G DTU for use to better remotely transmit information to the server so as to realize the interconnection of everything.

In order to detect the current of the electric leakage, the electric leakage detection module detects the current by using a current sensor, and the current sensor is used for detecting whether the electric equipment leaks the electric current (it should be noted that the current sensor can be a current sensor for detecting direct current or an alternating current, and the current sensor is selected according to actually monitored equipment), so that the current generated when the electric equipment leaks the electric current can be detected by the current sensor.

The working principle is as follows:

connect the current sensor among the instrument that detects, when the electric leakage takes place for the instrument, this leakage signal just detects through current sensor, current sensor just transmits current signal for P L C, when P L C received the leakage signal, just will transmit the leakage signal to the server through the DTU unit, the server further handles the leakage signal, and then send to the terminal server flat board by the server, the flat board just receives relevant leakage signal or electric leakage alarm information, of course because the server has the function of storage, the flat board also can look up the leakage information or other information that this electric leakage monitoring system monitored at any time.

Example two

As shown in fig. 3 and 4, an electric leakage monitoring system includes an electric leakage detection module, a P L C, DTU unit, a server and a terminal device, the P L C is connected with the electric leakage detection module and the DTU unit respectively, the P L C performs bidirectional data transmission with the server through the DTU unit, the terminal device performs bidirectional data transmission with the server, the electric leakage detection module is used to detect whether an instrument leaks electric leakage or not, in order to view related electric leakage information and the like remotely better, the terminal device selects a mobile phone for use, and the DTU unit selects a 4G DTU for use and can transmit information to the server remotely better.

In the detection of three-phase high-voltage instrument equipment, a high-voltage leakage alternating voltage is sometimes generated due to a new leakage signal, and then a large alternating current is generated, in order to prevent the damage of the detection equipment caused by an excessive voltage or an excessive current, the leakage detection module comprises a mutual inductor, a current-to-voltage module and a voltage-to-frequency module, and the mutual inductor, the current-to-voltage module and the voltage-to-frequency module are sequentially connected; the transformer is used for converting an input alternating current signal into an induced current, the current-to-voltage module is used for converting the induced current into voltage, and the voltage-to-frequency module is used for converting the voltage into frequency to be output. The high voltage can be converted into the low voltage through the conversion of the mutual inductor, the current-to-voltage module adopts a WB5812A type alternating current-to-direct current voltage converter, and the voltage-to-frequency module adopts an AD654 chip.

The working principle is as follows:

the leakage detection module is connected with an instrument to be detected to work in three-phase power, when the instrument leaks electricity, the leakage signal is converted by the mutual inductor, the current-to-voltage module and the voltage-to-frequency module, the leakage signal is finally converted into frequency, because the leakage voltage and the frequency are in a certain proportional relation, when the detected frequency is higher, the detected leakage voltage is higher, when the P L C detects the leakage signal, the leakage signal is sent to the server through the DTU unit, the server further processes the leakage signal, the leakage signal is further sent to the mobile phone of the terminal server by the server, the mobile phone receives related leakage signal or leakage alarm information, so that remote alarm is realized, certainly, because the server has a storage function, the mobile phone can also look up the leakage information or other information monitored by the leakage monitoring system at any time, and the monitoring system can monitor whether the leakage of the high-voltage alternating current equipment or monitor the high-voltage alternating current voltage through the leakage detection module.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

The above description is only a detailed description of the present invention. The scope of the present invention is not limited thereto, and any changes or simple substitutions which are not thought of through creative work should be covered within the scope of the present invention.

Claims

1. A leakage monitoring system is characterized by comprising a leakage detection module, a P L C, DTU unit, a server and a terminal device, wherein the P L C is respectively connected with the leakage detection module and a DTU unit, the P L C carries out bidirectional data transmission with the server through the DTU unit, the terminal device carries out bidirectional data transmission with the server, the leakage detection module is used for detecting whether an instrument leaks electricity or not, the leakage detection module comprises a mutual inductor, a current-to-voltage module and a voltage-to-frequency module, and the mutual inductor, the current-to-voltage module and the voltage-to-frequency module are sequentially connected, wherein the mutual inductor is used for converting an input alternating current signal into an induced current, the current-to-voltage module converts the induced current into a voltage, and the voltage-to-frequency module converts the voltage into a frequency for output.

2. An electrical leakage monitoring system according to claim 1, wherein: the terminal equipment comprises a mobile phone, a tablet and a computer.

3. An electrical leakage monitoring system according to claim 1, wherein: the DTU unit is a 4G DTU or a 5 GDTU.

4. An electrical leakage monitoring system according to claim 1, wherein: the current-to-voltage module adopts a WB5812A type alternating current-to-direct current voltage converter.

5. An electrical leakage monitoring system according to claim 1, wherein: the voltage frequency conversion module adopts an AD654 chip.