CN205539324U - Cable monitoring grounding box and cable monitoring system - Google Patents

Abstract

The utility model discloses a cable monitoring grounding box and a cable monitoring system. The cable monitoring grounding box includes a cable grounding device, and also includes: a monitoring device arranged at the cable for monitoring the operating state of the cable; a power supply device for providing electric energy to the monitoring device; connected to the monitoring device for Send the monitoring result of the monitoring device to the data communication device of the server of the monitoring platform. It can be seen that the cable monitoring grounding box provided by the utility model can not only play the role of grounding the cable, but also realize the monitoring of the running state of the cable, which enriches the functions of the grounding box. In addition, the monitoring results can be sent to the server of the monitoring platform through the data communication device, thereby realizing remote monitoring of cables and improving work efficiency. In addition, the utility model also discloses a cable monitoring system.

Description

A cable monitoring grounding box and cable monitoring system

technical field

The utility model relates to the field of electrical technology, in particular to a cable monitoring grounding box and a cable monitoring system.

Background technique

For the high-voltage single-core cable system, an appropriate cable sheath grounding method should be adopted according to the actual situation. Usually, the cable is grounded through the grounding box, specifically, the grounding box is connected between the cable sheath and the ground. The cable sheath is directly connected to the grounding box, and the grounding box contains connecting copper bars, copper terminals, etc., which are used for direct grounding of the cable sheath.

In the prior art, although the grounding box can realize the grounding of the cable, the grounding box has a single function. If the cable has other problems (for example, the temperature is too high), the grounding box cannot detect it, resulting in the need for staff to field Check, the work efficiency is low, and the real-time performance is not high enough.

It can be seen that how to enrich the functions of the grounding box and improve the working efficiency of the staff is an urgent problem to be solved by those skilled in the art.

Utility model content

The purpose of the utility model is to provide a cable monitoring grounding box and a cable monitoring grounding system, which are used to enrich the functions of the grounding box and improve the working efficiency of the staff.

In order to solve the above technical problems, the utility model provides a cable monitoring grounding box, including a cable grounding device, and also includes:

A monitoring device installed at the cable to monitor the running state of the cable;

a power supply device for providing electrical energy to the monitoring device;

A data communication device connected with the monitoring device and used for sending the monitoring result of the monitoring device to the server of the monitoring platform.

Preferably, the monitoring device includes:

Connected with the cable, a ground circulation monitoring module for monitoring the ground circulation value of the sheath;

A temperature measuring sensor arranged at the joint of the cable for monitoring the temperature of the cable;

Installed on the joint grounding wire of the cable, a current sensor for coupling the discharge pulse signal at the cable and the joint and a temperature collector connected to the current sensor for converting the discharge pulse signal;

The current acquisition device is installed at the joint of the cable and is used for monitoring the current traveling wave signal of the cable.

Preferably, the power supply device is connected to the mains power supply network through a power adapter, and connected to the photovoltaic battery through a photovoltaic power controller.

Preferably, the data communication device is a wireless communication module or an optical fiber.

Preferably, it also includes an alarm device communicating with the server, configured to give an alarm when the server determines that the operation state of the cable is abnormal according to the monitoring result.

Preferably, it also includes an induction switch installed at the door of the cable monitoring grounding cabinet, the induction switch is connected with the data communication device, and sends an induction signal to the server.

Preferably, it also includes an inclination sensor arranged in the box of the cable monitoring grounding box, the inclination sensor is connected with the data communication device, so as to send the detected inclination signal to the server.

Preferably, the monitoring device includes:

A humidity sensor arranged at the cable and used for monitoring the humidity signal at the cable.

Preferably, it also includes:

The optical fiber vibration sensor installed at the cable is used to send the vibration signal at the cable to the server.

A cable monitoring system includes the above-mentioned cable monitoring grounding box and a server of the monitoring platform.

The cable monitoring grounding box provided by the utility model includes the original cable grounding device. On the basis of this device, a monitoring device installed at the cable for monitoring the running state of the cable is added to provide electric energy for the monitoring device. The power supply device, and the data communication device connected with the monitoring device and used to send the monitoring results of the monitoring device to the server of the monitoring platform. It can be seen that the cable monitoring grounding box provided by the utility model can not only play the role of grounding the cable, but also realize the monitoring of the running state of the cable, which enriches the functions of the grounding box. In addition, the monitoring results can be sent to the server of the monitoring platform through the data communication device, thereby realizing remote monitoring of cables and improving work efficiency.

Description of drawings

In order to illustrate the embodiment of the utility model more clearly, the accompanying drawings that need to be used in the embodiment will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the utility model. For those skilled in the art Ordinary technicians can also obtain other drawings based on these drawings on the premise of not paying creative work.

Fig. 1 is a structural diagram of a cable monitoring grounding box provided by the utility model;

Fig. 2 is a structural diagram of another cable monitoring grounding box provided by the utility model.

detailed description

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

The core of the utility model is to provide a cable monitoring grounding box and a cable monitoring system.

In order to enable those skilled in the art to better understand the solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a structural diagram of a cable monitoring grounding box provided by the utility model. As shown in Figure 1, the cable monitoring grounding box, including the cable grounding device 1, also includes:

A monitoring device 2 arranged at the cable for monitoring the running state of the cable;

A power supply device 3 that provides electrical energy for the monitoring device 2;

It is connected with the monitoring device 3 and is used for sending the monitoring results of the monitoring device 2 to the data communication device 5 of the server 4 of the monitoring platform.

In specific implementation, the original cable grounding device 1 can be retained on the basis of the existing cable grounding box, and then the monitoring device 2, the power supply device 3 and the data communication device 5 can be added. For the beauty and convenience of the box, the inside of the cable grounding box can be divided into left and right parts, the right part is the cable grounding device 1, and the left part is equipped with the monitoring device 2, the power supply device 3 and the data communication device 5. The monitoring device 2 is arranged at the cable, such as at the joint of the cable, on the outer surface of the cable and around the cable. The installation position of the monitoring device 2 needs to be set according to the monitored object, and different monitoring objects have different installation positions. The function of the monitoring device 2 is to monitor the running state of the cable, for example, monitor the temperature, humidity, ground loop current, etc. of the cable. Therefore, the monitoring device 2 can be composed of one or more specific hardware. In order to be able to monitor in real time and improve the working efficiency of the staff, a data communication device 5 can be installed in the box, and the data communication device 5 sends the monitoring results of the monitoring device 2 to the server 4 of the monitoring platform. The running status of the cable can be obtained in time through the analysis and calculation of the server 4, and the staff does not need to go to the work site. In addition, in order to be more convenient, when the monitoring result shows that the operation status of the cable is abnormal, the server 4 can also send the monitoring result to the mobile terminal of the staff through its own communication device, so that even if the staff does not see the monitoring result on the monitoring platform It is also possible to obtain the running status of the cable in time.

The cable monitoring grounding box provided by the utility model includes the original cable grounding device. On the basis of this device, a monitoring device for monitoring the running state of the cable and a device for providing electric energy for the monitoring device are added. A power supply device and a data communication device connected with the monitoring device for sending the monitoring results of the monitoring device to the server of the monitoring platform. It can be seen that the cable monitoring grounding box provided by the utility model can not only play the role of grounding the cable, but also realize the monitoring of the running state of the cable, which enriches the functions of the grounding box. In addition, the monitoring results can be sent to the server of the monitoring platform through the data communication device, thereby realizing remote monitoring of cables and improving work efficiency.

Fig. 2 is a structural diagram of another cable monitoring grounding box provided by the utility model. Specifically, the monitoring device 2 includes:

Connected with the cable, a ground circulation monitoring module 20 for monitoring the ground circulation value of the sheath;

A temperature measuring sensor 21 arranged at the joint of the cable for monitoring the temperature of the cable;

Installed on the joint grounding wire of the cable, the current sensor 22 used to couple the discharge pulse signal at the cable and the joint and connected with the current sensor 22, is used to convert the temperature collector 23 of the discharge pulse signal;

Installed at the joint of the cable, the current acquisition device 24 is used to monitor the current traveling wave signal of the cable.

The grounding circulation monitoring module 20 is used for monitoring the slowly changing value of the grounding circulation of the sheath, reflecting the goodness of the grounding of the sheath, the aging degree of the cable, the change of the load of the wire core, and the like. Under the normal operation of the high-voltage cable line, when the ground circulation value suddenly decreases or becomes zero, combined with the ESC situation and the cable operation status analysis and diagnosis model, it can effectively judge the theft of the grounding box or the theft of the grounding wire.

The temperature measuring sensor 21 can be installed at the joint of the cable, and the temperature measuring sensor 21 sends the monitored temperature signal to the server 4 through the data communication device 5 .

The current sensor 22 and the temperature collector 23 mainly monitor the cable partial discharge pulse signal and convert the partial pulse signal. The current sensor 22 can be a high-frequency current sensor. When the current sensor 22 couples the partial discharge pulse current signal, the signal is amplified, filtered, converted from analog to digital by the temperature collector 23 and then converted into a digital signal and then sent to the Server 4.

The current acquisition device 24 is installed at the joint of the cable, and is used to monitor the current traveling wave signal of the cable, and sends the signal to the server 4 through the data communication device 5, and the server 4 judges whether the signal indicates that the cable is faulty. In a specific implementation, while the current collecting device 24 is sending the current traveling wave signal, it can also send its own ID mark together, so that when the server resolves the fault of the cable, it can quickly judge the current signal according to the sent ID mark Find out which cable is the source of the fault, which reduces the troubleshooting time and improves work efficiency.

On the basis of the above embodiments, a temperature sensor can also be installed inside the cable monitoring grounding box, and the temperature sensor is used to monitor the temperature inside the box body, and the temperature sensor sends the monitored temperature signal to the server 4 through the data communication device 5 .

Specifically, the power supply device 3 can be powered by two power sources at the same time, and the two power sources are mutually redundant. One is connected to the mains power supply network through a power adapter, and the other is connected to a photovoltaic cell through a photovoltaic power controller.

When the mains power supply network fails, the photovoltaic battery continues to supply power. Similarly, when the photovoltaic battery fails, the mains power supply network continues to supply power. The above two power supplies can ensure that the monitoring device 2 in the cable grounding box maintains a stable operation.

As a preferred implementation manner, the data communication device 5 is a wireless communication module or an optical fiber.

The wireless transmission of signals can be realized through the wireless communication module, so that the staff can monitor the operation status of the cable through remote monitoring. In addition, optical fiber can also be used as a transmission medium for data communication. This embodiment will not be described in detail.

As a preferred embodiment, it also includes an alarm device 6 communicating with the server 4, which is used for alarming and prompting when the server determines that the running state of the cable is abnormal according to the monitoring results.

In a specific implementation, the installation location of the alarm device 6 can be installed in the cable monitoring grounding box, or can be installed on the monitoring platform for staff to monitor. In FIG. 2, there is one alarm device 6, which communicates with the server, but in an application, there may be one alarm device 6, or there may be multiple alarm devices. When there are multiple alarm devices 6 , the alarm devices 6 can be set in one-to-one correspondence with each monitoring component in the monitoring device 2 .

As a preferred embodiment, it also includes an induction switch installed at the door of the cable monitoring grounding box, the induction switch is connected with the data communication device 5, and sends the induction signal to the server.

The cable monitoring grounding box is usually installed in the field, which provides some criminals with the opportunity to steal and destroy. For the safety of the cable monitoring grounding box, an induction switch can be installed on the door of the cable monitoring grounding box. Under normal circumstances, the staff can correctly open the cabinet door to carry out operations, and if criminals open the cabinet door through abnormal channels, the sensor switch will send a signal that the cabinet door is opened, and send it to the server 4 through the data communication device 5. In this way, it can play a monitoring role.

As a preferred embodiment, it also includes an inclination sensor arranged in the box of the cable monitoring grounding box, and the inclination sensor is connected with the data communication device 5 to send the detected inclination signal to the server 4 .

In some extreme cases, criminals may steal the entire cable monitoring grounding box. Therefore, in order to ensure safety, a tilt sensor is installed inside the box. When the cabinet is tilted, the tilt sensor can tilt the cabinet The signal is sent to the server 4 through the data communication device 5.

As a preferred implementation manner, the monitoring device includes: a humidity sensor arranged at the cable and used for monitoring a humidity signal at the cable.

When the weather is wet or even floods occur, the cable monitoring grounding box may have too much humidity, causing electrical equipment to malfunction. Therefore, in this embodiment, a humidity sensor is installed at the cable to monitor the humidity signal around the cable. The humidity sensor sends the monitored humidity signal to the server 4 through the data communication device 5, and the server 4 analyzes the signal, and if the humidity signal exceeds a set value, it prompts the staff.

As a preferred embodiment, it also includes: an optical fiber vibration sensor installed at the cable, for sending the vibration signal at the cable to the server 4 .

According to different practical applications, it can be divided into two types: exposed type and hidden type. It can be applied not only to various types of anti-theft facilities and equipment, but also to various perimeters such as fences in defense areas, as well as under lawns, gravel layers, floor tiles, floors, cement floors, and ordinary soil. There is no need to lay any power supply and communication lines in the protected area, which can greatly save the cost of power supply equipment and lines for customers, and simplify construction. The optical fiber is used as the sensing unit, and the background computer is used to collect and control the data and realize the detection of long-distance and large-scale defense zones. The length of each defense zone can reach hundreds of meters to thousands of meters.

In addition, in specific implementation, an RD alarm processor can be configured for the optical shock sensor. The RD alarm processor processes digital signals in the frequency domain. Its advantages are obvious. We can identify a specific signal through the frequency of the signal. The vibration signal caused by the vehicle passing by and the vibration signal caused by people climbing the fence are in the There is a large difference within the domain, so it is easy to identify the source of false positives in the frequency domain. The RD alarm processor has a special setting for frequency, and a frequency filter at the same time, which can filter out most high frequency and low frequency signals.

A cable monitoring system includes the cable monitoring grounding box and the server of the monitoring platform described in the above embodiments.

Since the cable monitoring grounding box has been described in detail in the above embodiments, it will not be described in detail in this embodiment. It can be understood that the prerequisite for the server 4 to analyze and process the monitoring results sent by the monitoring device 2 is that the server 4 needs to pre-set the corresponding analysis and processing model, which will not be repeated in the present invention.

The cable monitoring grounding box and the cable monitoring system provided by the utility model have been introduced in detail above. Each embodiment in the description is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the related information, please refer to the description of the method part. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made to the utility model, and these improvements and modifications also fall into the protection of the claims of the utility model. within range.

Professionals can further realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software or a combination of the two. In order to clearly illustrate the possible For interchangeability, in the above description, the composition and steps of each example have been generally described according to their functions. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

The steps of the methods or algorithms described in connection with the embodiments disclosed herein may be directly implemented by hardware, software modules executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other Any other known storage medium.

Claims (10)

1. A cable monitoring grounding box, comprising a cable grounding device, is characterized in that it also includes: A monitoring device installed at the cable to monitor the running state of the cable; a power supply device for providing electrical energy to the monitoring device; A data communication device connected with the monitoring device and used for sending the monitoring result of the monitoring device to the server of the monitoring platform. 2. The cable monitoring grounding box according to claim 1, wherein the monitoring device comprises: Connected with the cable, a ground circulation monitoring module for monitoring the ground circulation value of the sheath; A temperature measuring sensor arranged at the joint of the cable for monitoring the temperature of the cable; Installed on the joint grounding wire of the cable, a current sensor for coupling the discharge pulse signal at the cable and the joint and a temperature collector connected to the current sensor for converting the discharge pulse signal; The current acquisition device is installed at the joint of the cable and is used for monitoring the current traveling wave signal of the cable. 3 . The cable monitoring grounding box according to claim 1 , wherein the power supply device is connected to a mains power supply network through a power adapter, and connected to a photovoltaic cell through a photovoltaic power controller. 4 . 4. The cable monitoring grounding box according to claim 1, wherein the data communication device is a wireless communication module or an optical fiber. 5. The cable monitoring grounding box according to claim 1, further comprising an alarm device communicating with the server, for judging by the server that there is an abnormality in the operating state of the cable according to the monitoring result When the alarm prompts. 6. The cable monitoring grounding box according to claim 1, further comprising an induction switch installed on the door of the cable monitoring grounding box, the induction switch is connected to the data communication device, and the induction signal sent to the server. 7. The cable monitoring grounding box according to claim 1 or 6, further comprising an inclination sensor arranged in the box body of the cable monitoring grounding box, the inclination sensor is connected with the data communication device to Sending the detected tilt signal to the server. 8. The cable monitoring grounding box according to claim 1, wherein the monitoring device comprises: A humidity sensor arranged at the cable and used for monitoring the humidity signal at the cable. 9. The cable monitoring grounding box according to claim 1, further comprising: The optical fiber vibration sensor installed at the cable is used to send the vibration signal at the cable to the server. 10. A cable monitoring system, characterized in that it comprises the cable monitoring grounding box and the server of the monitoring platform according to any one of claims 1-9.