CN108363068A - Online monitoring device and system applied to power transmission line corridor hidden danger - Google Patents

Abstract

The invention provides an on-line monitoring device and system for hidden dangers in corridors of power transmission lines, and relates to the technical field of power transmission line monitoring, including a laser radar device, a preprocessing device, a single-chip microcomputer and an alarm device; the laser radar device is used to collect the distance of faulty objects signal; the preprocessing device is connected with the laser radar device for preprocessing the distance signal to obtain the preprocessing result and sends the preprocessing result to the single-chip microcomputer; the single-chip microcomputer is connected with the preprocessing device for As a result, the vertical distance between the fault object and the transmission line conductor is obtained, and when the vertical distance is less than the preset distance, a control signal is sent to the alarm device, so that the alarm device sends out an alarm, which can monitor various hidden dangers of lines in complex scenes .

Description

Applied to the online monitoring device and system for hidden dangers in transmission line corridors

technical field

The invention relates to the technical field of transmission line monitoring, in particular to an on-line monitoring device and system for hidden dangers in transmission line corridors.

Background technique

In recent years, with the expansion of the scale of transmission lines, line tripping accidents caused by tree barriers in transmission line corridors, construction, etc. have occurred from time to time. Therefore, manual inspection of lines is an important daily work of transmission operation and maintenance teams. In densely wooded mountainous forest areas or construction areas, when towering trees or construction vehicles are within a certain distance from the wire line, it will cause the line to trip, and even cause a safety accident. The inspectors need to check the wire line. Under the circumstances, it will consume a lot of manpower and material resources to estimate the shortest distance between trees or construction vehicles and the wires. For such hidden dangers, relying on the daily inspection and management of operation and maintenance personnel.

At present, the research on hidden danger monitoring of transmission line corridors generally adopts the method of monitoring transmission line tree barriers. One: the monitoring function is single; Online monitoring environmental factors have a great influence on the results. It is difficult to meet the complexity and reliability requirements of various hidden danger monitoring applications in transmission line corridors.

Contents of the invention

In view of this, the object of the present invention is to provide an online monitoring device and system for hidden dangers in transmission line corridors, which can monitor various hidden dangers in complex scenes.

In the first aspect, the embodiment of the present invention provides an online monitoring device for hidden dangers in transmission line corridors, including: a laser radar device, a preprocessing device, a single-chip microcomputer, and an alarm device;

The laser radar device is used to collect distance signals of faulty objects;

The preprocessing device is connected to the laser radar device, and is used to preprocess the distance signal to obtain a preprocessing result, and send the preprocessing result to the single-chip microcomputer;

The single-chip microcomputer is connected with the preprocessing device, and is used to obtain the vertical distance between the fault object and the transmission line conductor according to the preprocessing result, and when the vertical distance is less than the preset distance, send a control A signal is sent to the alarm device to cause the alarm device to sound an alarm.

In combination with the first aspect, the embodiment of the present invention provides a first possible implementation manner of the first aspect, wherein the fault object includes one or more of a tree barrier, a building, a construction vehicle arm, and a wildfire 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 laser radar device, the preprocessing device, the single-chip microcomputer, and the alarm device are integrated into one.

In combination with the first aspect, the embodiment of the present invention provides a third possible implementation manner of the first aspect, which further includes a power module, which is connected to the laser radar device, the preprocessing device, the single-chip microcomputer and the The alarm device is connected to provide electric energy for the laser radar device, the preprocessing device, the single-chip microcomputer and the alarm device.

With reference to the first aspect, the embodiment of the present invention provides a fourth possible implementation manner of the first aspect, wherein the power module includes one or more of a wind power generation device, a solar power generation device and a storage battery device.

In combination with the first aspect, the embodiment of the present invention provides a fifth possible implementation manner of the first aspect, wherein the single-chip microcomputer is further configured to compare the vertical distance with the preset distance within a preset time As a result, the corresponding hidden danger types are obtained.

With reference to the first aspect, the embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein the preprocessing device includes a conversion circuit and a signal processing circuit;

The conversion circuit is connected to the laser radar device, and is used to convert the distance signal into an electrical signal, and send the electrical signal to the signal processing circuit;

The signal processing circuit is connected with the conversion circuit, and is used to filter and amplify the electrical signal to obtain a preprocessing result, and send the preprocessing result to the single-chip microcomputer.

In combination with the first aspect, the embodiment of the present invention provides a seventh possible implementation manner of the first aspect, wherein the lidar device is further configured to collect the distance of the faulty object in a 360° omni-directional scanning manner Signal.

With reference to the first aspect, the embodiment of the present invention provides an eighth possible implementation manner of the first aspect, wherein the model of the single-chip microcomputer includes stm32f103vet6.

In the second aspect, the embodiment of the present invention also provides an online hidden danger monitoring system applied to transmission line corridors, including the above-mentioned online hidden danger monitoring device applied to transmission line corridors, and also includes a wireless communication module and a host computer;

The wireless communication module is connected with the online monitoring device for hidden dangers in transmission line corridors, and is used to communicate with the host computer through wireless mode;

The upper computer is connected with the wireless communication module, and is used to receive the calculation results sent by the online monitoring device for hidden dangers in transmission line corridors, and analyze and monitor the calculation results.

The embodiment of the present invention provides an online monitoring device and system for hidden dangers in transmission line corridors, which relates to the technical field of transmission line monitoring, is suitable for monitoring various hidden dangers of line faults, and can be applied to complex environments. The device collects a variety of faulty object distances that are applied to the distance signal of the online monitoring device for hidden dangers in the transmission line corridor, and then enables the single-chip microcomputer to obtain the shortest distance between the faulty object and the transmission line. When the shortest distance is within the preset distance, the alarm device sends out an alarm. The staff are notified in a timely manner and take corresponding measures;

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 schematic structural diagram of an online hidden danger monitoring device applied to transmission line corridors provided by an embodiment of the present invention.

Icons: 1-Lidar device; 2-Conversion circuit; 3-Signal processing circuit; 4-Single-chip microcomputer; 5-Wireless communication module; 6-Post computer; 7-Alarm device; 8-Power supply module.

Detailed ways

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.

In recent years, with the expansion of the scale of transmission lines, line tripping accidents caused by tree barriers in transmission line corridors, construction, etc. have occurred from time to time. Therefore, manual inspection of lines is an important daily work of transmission operation and maintenance teams. In mountainous forest areas with dense forests, in addition to the potential hidden danger of wildfire, when towering trees are a certain distance below the wire line, it will cause the line to trip. shortest distance. In addition, due to urban and rural transformation, some transmission line corridors are often accompanied by building construction, and construction vehicles will also cause line trips when they are working at a certain distance from the conductors, and even cause safety accidents. Regarding such hidden dangers, it will consume a lot of manpower and material resources to rely on the daily inspection and management of operation and maintenance personnel.

Based on this, the embodiment of the present invention provides an online monitoring device and system for hidden dangers in transmission line corridors, which can monitor various hidden dangers in complex scenes.

The following is a detailed description through examples.

Fig. 1 is a schematic structural diagram of an online hidden danger monitoring device applied to transmission line corridors provided by an embodiment of the present invention.

Referring to Fig. 1, the online monitoring device for hidden dangers in the transmission line corridor includes a laser radar device 1, a preprocessing device, a single-chip microcomputer 4 and an alarm device 7;

A laser radar device 1, configured to collect distance signals of faulty objects;

The preprocessing device is connected with the laser radar device 1, and is used to preprocess the distance signal to obtain a preprocessing result, and send the preprocessing result to the single-chip microcomputer 4;

The single-chip microcomputer 4 is connected with the preprocessing device, and is used to obtain the vertical distance between the fault object and the transmission line conductor according to the preprocessing result, and when the vertical distance is less than the preset distance, send a control signal to the alarm device 7, so that the alarm Device 7 sounds an alarm.

Specifically, the online monitoring device for hidden dangers in transmission line corridors provided by the embodiments of the present invention is installed on iron towers to monitor transmission lines between iron towers, and is applicable to the monitoring of various line faults and hidden dangers, and can be applied to complex environments. Among them, the laser radar device 1 collects a variety of fault object distances and applies them to the distance signal of the transmission line corridor hidden danger online monitoring device, and then enables the single-chip microcomputer 4 to obtain the shortest distance between the fault object and the transmission line. When the shortest distance is within the preset distance , the alarm device 7 sends an alarm, so that the staff can be informed in time and take corresponding measures;

Here, the shortest distance between the fault object and the transmission line is the vertical distance from the fault object to the transmission line;

Among them, the preset distance is determined according to the actual voltage level of the monitored transmission line, for example, the safe distance of 110kV line is 1.5m, and the safe distance of 220kV line is 4m;

It should be noted that the single-chip microcomputer 4 establishes a three-dimensional coordinate system by taking the iron tower as the vertical coordinate axis and the ground as the horizontal coordinate axis, imports the conductor sag approximate equation of the transmission line, and applies it to the setting point of the online monitoring device for hidden dangers in the corridor of the transmission line. The connection point with the position of the iron tower, the straight-line distance between the laser radar device 1 and the faulty object, the direction angle between the laser radar and the faulty object, and then calculate the vertical shortest distance between the faulty object and the transmission line according to the principle of space geometry;

Further, the faulty objects include one or more of tree barriers, buildings, construction truck arms and wildfire signals.

Here, the application of the online monitoring device for hidden dangers in the transmission line corridor provided by the embodiment of the present invention can identify the abnormal distance between the above-mentioned faulty object and the transmission line, and give an alarm in time;

Further, the laser radar device 1, the preprocessing device, the single chip microcomputer 4 and the alarm device 7 are integrated into one body.

Among them, the above-mentioned devices are integrated into one body, so that the volume of the line monitoring device is small and the installation space is saved;

Further, it also includes a power supply module 8, which is respectively connected to the laser radar device 1, the preprocessing device, the single-chip microcomputer 4 and the alarm device 7, and is used to provide electric energy for the laser radar device 1, the preprocessing device, the single-chip microcomputer 4 and the alarm device 7.

Further, the power module 8 includes one or more of a wind power generation device, a solar power generation device and a storage battery device.

Here, wind energy, solar energy and batteries can be used as power supply methods, and various power generation devices supply power to various components of the line monitoring device, which can save energy and protect the environment while ensuring the effectiveness of the power supply of the line monitoring device;

Further, the single-chip microcomputer 4 is also used to obtain the corresponding hidden danger type according to the comparison result between the vertical distance within the preset time and the preset distance.

Here, it is judged according to the change of the distance within the preset time, such as scanning several cycles by the laser radar device 1, and within the cycle, if the vertical distance changes slightly, it can be judged that the type of the fault is a fixed distance hidden danger type (such as a tree barrier) , if the vertical distance appears for a short time and then disappears, then the type of the faulty object is judged as an instantaneous hidden danger type (such as a bird); if the vertical distance changes significantly within the cycle, then the type of faulty object is judged as a construction hidden danger type (e.g. construction truck arms);

Further, the preprocessing device includes a conversion circuit 2 and a signal processing circuit 3;

The conversion circuit 2 is connected with the laser radar device 1, and is used for converting the distance signal into an electrical signal, and sending the electrical signal to the signal processing circuit 3;

The signal processing circuit 3 is connected with the conversion circuit 2 and is used for filtering and amplifying the electric signal to obtain a preprocessing result and send the preprocessing result to the single chip microcomputer 4 .

Here, through the preprocessing device, the collected distance signal is first subjected to analog-to-digital conversion, then filtered, amplified and preprocessed, and the single-chip microcomputer 4 operates the preprocessed result again, so that the monitoring result is more accurate;

Further, the laser radar device 1 is also used to collect distance signals of faulty objects through 360° omnidirectional scanning.

Further, the MCU 4 models include stm32f103vet6.

Further, the embodiment of the present invention also provides an online hidden danger monitoring system applied to transmission line corridors, including the above-mentioned online hidden danger monitoring device applied to transmission line corridors, and also includes a wireless communication module 5 and a host computer 6;

The wireless communication module 5 is connected with the hidden danger online monitoring device applied to the transmission line corridor, and is used to communicate with the upper computer 6 through the wireless mode;

The upper computer 6 is connected with the wireless communication module 5, and is used to receive the calculation results sent by the online monitoring device for hidden dangers in the corridors of transmission lines, and analyze and monitor the calculation results.

Here, the wireless communication module 5 converts the serial port communication of the single-chip microcomputer 4 into a wireless communication mode, wherein the wireless communication module 5 includes a model USR-WIFI232-B;

Wherein, the model of wireless communication module 5 and single-chip microcomputer 4 is not limited to this;

The embodiment of the present invention overcomes the shortcomings of the existing transmission line monitoring function such as singleness, and realizes automatic monitoring. Compared with the current transmission line monitoring method proposed at present, the embodiment of the present invention can monitor multiple types of hidden dangers of faults and realize diversified functions. Automatic measurement and calculation of hidden danger distances, automatic identification of different types of hidden dangers of faults, and real-time operation of the monitoring system have no impact on the stable operation of the power system, ensuring the reliability of transmission line applications.

The online monitoring system for hidden dangers in transmission line corridors provided by the embodiment of the present invention has the same technical characteristics as the online monitoring device for hidden dangers in transmission line corridors provided by the above embodiments, so it can also solve the same technical problems and achieve the same technology Effect.

In the description of the embodiments of the present invention, unless otherwise clearly stipulated 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 Integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can 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.

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.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some communication interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

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 based on the protection scope of the claims.

Claims (10)

1. An online monitoring device for hidden dangers in transmission line corridors, characterized in that it includes: a laser radar device, a preprocessing device, a single-chip microcomputer and an alarm device; The laser radar device is used to collect distance signals of faulty objects; The preprocessing device is connected to the laser radar device, and is used to preprocess the distance signal to obtain a preprocessing result, and send the preprocessing result to the single-chip microcomputer; The single-chip microcomputer is connected with the preprocessing device, and is used to obtain the vertical distance between the fault object and the transmission line conductor according to the preprocessing result, and when the vertical distance is less than the preset distance, send a control A signal is sent to the alarm device to cause the alarm device to sound an alarm. 2 . The on-line monitoring device for hidden dangers in transmission line corridors according to claim 1 , wherein the fault objects include one or more of tree barriers, buildings, construction truck arms, and mountain fire signals. 3. The online monitoring device for hidden dangers in transmission line corridors according to claim 1, characterized in that the laser radar device, the preprocessing device, the single-chip microcomputer and the alarm device are integrated into one. 4. The on-line monitoring device for hidden dangers in transmission line corridors according to claim 1, further comprising a power supply module, respectively connected to the laser radar device, the preprocessing device, the single-chip microcomputer and the alarm device connected to provide electric energy for the laser radar device, the preprocessing device, the single-chip microcomputer and the alarm device. 5 . The on-line monitoring device for hidden dangers in transmission line corridors according to claim 4 , wherein the power module includes one or more of wind power generation devices, solar power generation devices and storage battery devices. 6. The on-line monitoring device for hidden dangers applied to transmission line corridors according to claim 1, wherein the single-chip microcomputer is also used to compare the vertical distance with the preset distance within a preset time, Get the corresponding hidden danger type. 7. The online monitoring device for hidden dangers in transmission line corridors according to claim 1, wherein the preprocessing device includes a conversion circuit and a signal processing circuit; The conversion circuit is connected to the laser radar device, and is used to convert the distance signal into an electrical signal, and send the electrical signal to the signal processing circuit; The signal processing circuit is connected with the conversion circuit, and is used to filter and amplify the electrical signal to obtain a preprocessing result, and send the preprocessing result to the single-chip microcomputer. 8. The on-line monitoring device for hidden dangers in transmission line corridors according to claim 1, wherein the laser radar device is also used to collect the distance signal of the faulty object through a 360° omnidirectional scanning method. 9. The on-line monitoring device for hidden dangers in transmission line corridors according to claim 1, wherein the model of the single-chip microcomputer includes stm32f103vet6. 10. An online monitoring system for hidden dangers in transmission line corridors, characterized in that it includes the online monitoring device for hidden dangers in transmission line corridors according to any one of claims 1-9, and also includes a wireless communication module and a host computer; The wireless communication module is connected with the online monitoring device for hidden dangers in transmission line corridors, and is used to communicate with the host computer through wireless mode; The upper computer is connected with the wireless communication module, and is used to receive the calculation results sent by the online monitoring device for hidden dangers in transmission line corridors, and analyze and monitor the calculation results.