阅读说明：本技术 架空线路的周界防护系统 (Perimeter protection system for overhead lines ) 是由 张少伟 米宏伟 王健 韩雪峰 赖冠斌 黄金福 刁飞虹 于 2021-06-08 设计创作，主要内容包括：本申请涉及一种架空线路的周界防护系统,包括警示装置,由激光警示模块、语音警示模块和主控模块组成,警示装置安装在架空线路的铁塔架上,用于在现场起到警示作用；云平台,部署在供电局内网服务器上,用于对所述警示装置进行综合管理,云平台与警示装置之间存在网络连接。整个警示装置安装在架空线路的铁架上,避免带电作业,安全性高。警示装置采用可见激光器形成准确和明显的警示区域,光束覆盖了整条导线,警示区域广；激光亮度高,不宜被大阳光干扰；通过激光的整形扩束增加了激光的可识别性；定向喇叭可以实现声音的远距离精准传播,避免了噪音污染；并且增加多功能云平台,实现统一管理,使得警示装置的警示效果更加灵活多样。(The utility model relates to a perimeter protection system of an overhead line, which comprises a warning device, a voice warning module and a main control module, wherein the warning device is arranged on an iron tower frame of the overhead line and is used for warning on site; and the cloud platform is deployed on the power supply local intranet server and used for carrying out comprehensive management on the warning device, and network connection exists between the cloud platform and the warning device. Whole warning device installs on overhead line's iron stand, avoids live working, and the security is high. The warning device adopts a visible laser to form an accurate and obvious warning area, and the light beam covers the whole wire, so that the warning area is wide; the laser has high brightness and is not easy to be interfered by big sunlight; the identifiability of the laser is improved through shaping and expanding the laser; the directional loudspeaker can realize the remote and accurate transmission of sound, and avoid noise pollution; and a multifunctional cloud platform is added, so that unified management is realized, and the warning effect of the warning device is more flexible and diversified.)

1. A perimeter protection system for overhead lines, comprising:

the warning device is composed of a laser warning module, a voice warning module and a main control module, and is arranged on an iron tower frame of the overhead line and used for warning on site;

the laser warning module provides a visible laser warning function for the warning device, and the voice warning module provides a voice warning function for the warning device;

the cloud platform is deployed on the power supply local intranet server and used for carrying out comprehensive management on the warning device, and network connection exists between the cloud platform and the warning device.

2. The overhead line perimeter protection system of claim 1, wherein the laser warning module comprises: the device comprises a laser emitting unit, a light intensity sensing unit, a laser driving unit, a light beam shaping unit and a reflector unit;

the laser emitting unit is used for providing a laser warning function for the warning device in a preset working mode; the laser emission unit comprises a first laser emission subunit and a second laser emission subunit, the first laser emission subunit and the second laser emission subunit both comprise visible laser emitters and are positioned on a first iron tower of the overhead line, and light emitting directions of the first laser emission subunit and the second laser emission subunit point to a second iron tower;

the light intensity sensing unit is used for detecting the illumination intensity of the current environment;

the laser driving unit is used for providing a power supply for the laser emitting unit and performing switching control and power regulation on the laser emitting unit based on the light intensity sensing unit or based on task content issued by the cloud platform;

the beam shaping unit comprises a first beam shaping subunit and a second beam shaping subunit, the first beam shaping subunit is arranged at a laser outlet of the first laser emission subunit, and a first grating lens is adopted to shape the laser emitted by the first laser emission subunit; the second beam shaping subunit is arranged at a laser outlet of the second laser emission subunit, and a second grating lens is adopted to carry out shaping treatment on the laser emitted by the second laser emission subunit;

the reflector unit comprises a first reflector and a second reflector, and the first reflector is mounted on the second iron tower and used for intercepting the laser beam emitted by the first laser emission subunit; the first reflector is arranged on the second iron tower and used for intercepting the laser beam emitted by the first laser emission subunit;

the first iron tower frame and the second iron tower frame are iron tower frames at two ends of the overhead line, and the installation position of the laser emission module is determined based on the condition that a laser warning area formed in the laser warning module is below the lowest point of the overhead line.

3. The overhead line perimeter protection system of claim 2, wherein the preset mode of operation comprises a continuous emission mode of operation or a blinking emission mode of operation; the continuous emission working mode refers to that the visible laser emitter emits laser beams uninterruptedly, and the flicker emission working mode refers to that the visible laser emitter emits laser beams discontinuously at a first preset frequency.

4. The perimeter protection system for overhead lines according to claim 2, wherein the first beam shaping subunit is configured to change the laser beam emitted by the first laser emitting subunit into a beam composed of a first central light column and a first scattered light column through the first grating lens;

the second beam shaping subunit is used for converting the laser beam emitted by the second laser emission subunit into a beam consisting of a second central light column and a second scattered light column through the second grating lens;

the area between the first central light beam and the second central light beam is a laser warning area of the warning device.

5. Perimeter protection system for overhead lines according to any of the claims from 2 to 4, characterized in that said voice warning module comprises: the device comprises an audio decoding unit, a power amplifying unit and a directional loudspeaker unit;

the audio decoding unit is used for digitally storing audio data in task content issued by the cloud platform and converting the digitally stored audio data into analog audio signals;

the power amplification unit is used for performing power amplification processing on the analog audio signal output by the audio decoding unit during playing;

the directional loudspeaker unit is used for directionally broadcasting the analog audio signal amplified by the power amplification unit;

the audio decoding unit, the power amplifying unit and the directional loudspeaker unit are all mounted on a first iron tower or a second iron tower of the overhead line.

6. The overhead line perimeter protection system of claim 5, wherein the directional horn unit comprises:

the ultrasonic directional horn subunit is used for playing the analog audio signal amplified by the power amplification unit towards a preset target by using ultrasonic waves as carrier waves;

the directional horn driving subunit is used for driving the ultrasonic directional horn subunit to start broadcasting, and controlling the broadcasting direction and the broadcasting range of the ultrasonic directional horn subunit;

the preset targets comprise site construction personnel and irrelevant personnel who accidentally break into a construction site, the broadcasting direction is determined based on the directions of the preset targets, and the broadcasting range is determined based on the number of the preset targets.

7. The overhead line perimeter protection system of claim 5, wherein the master control module comprises: the system comprises a micro-processing unit, a power supply unit and a 4G communication unit;

the micro-processing unit is connected with the laser driving unit and the audio decoding unit and is used for controlling and managing a laser warning device of the laser warning module and a voice warning device of the voice warning module;

the power supply unit is used for providing power support for the micro-processing unit;

the 4G communication unit is used for providing network connection between the micro-processing unit and the cloud platform;

the micro-processing unit, the power supply unit and the 4G communication unit are integrally mounted on a first iron tower or a second iron tower of an overhead line in the form of a case.

8. The overhead line perimeter protection system of claim 7, wherein the power supply unit comprises a solar power supply unit or a battery power supply unit.

9. The overhead line perimeter protection system of claim 7, wherein said micro-processing unit comprises at least one of the following four chips, respectively a single chip, a DSP (digital Signal processing) chip, an ARM chip, and an FPGA (field Programmable Gate array) chip.

10. The overhead line perimeter protection system of claim 1, wherein the cloud platform comprises: the system comprises a machine account management unit, an equipment control unit, a timing task unit, a real-time task unit, a playing resource unit, a user management unit and a system configuration unit;

the machine account management unit is used for associating and storing the characteristic information of the warning device and uniformly managing the warning device based on the characteristic information, wherein the characteristic information comprises equipment number, IP address, line name, voltage class and tower number information;

the equipment control unit is used for displaying a first equipment state of the warning device and controlling a second equipment state of the warning device; the first equipment state comprises a connection state, signal intensity, battery voltage, a task state, current volume and a forbidden tone state; the second equipment state comprises an opening state, volume control and forbidden tone control; the sound forbidding control comprises sound forbidding of single equipment, sound forbidding of equipment in the group or sound forbidding of all the equipment;

the timed task unit is used for editing and managing timed task contents, wherein the timed task contents comprise task names, broadcast terminals, broadcast files, volume, start dates, end dates, broadcast times and start times;

the real-time task unit is used for broadcasting new task contents in real time and managing a single warning device of the overhead line or a plurality of warning devices of the overhead line in real time;

the playing resource unit is used for uploading a broadcast file and an alarm file and identifying the format of an audio file;

the user management unit is used for managing the type of the user and the authority of the user;

the system configuration unit is used for managing system configuration, passwords and priority levels;

the task content is issued to the laser warning module and the voice warning module through network connection between the cloud platform and the warning device.

Technical Field

The application relates to the technical field of perimeter protection of power overhead lines, in particular to a perimeter protection system of an overhead line.

Background

With the rapid development of economic reform, electric power becomes an integral part of our lives, which facilitates our lives and improves the happiness index of people's lives. Then, in the present day, in an indispensable era of power, how to ensure the safety and reliability of power supply becomes a crucial issue. In the whole power supply system, the guarantee of normal transmission of electric power on the overhead power transmission line also becomes a very important link. Because engineering construction is more and more at present, a plurality of construction sites are located in a corridor of a multi-overhead power transmission line, and safety threat is caused to the power transmission line. Therefore, a necessary perimeter protection device is needed in the daily repair process of the line, and the intactness of the overhead line and the personal safety of workers are ensured through reminding or warning, so that safety accidents in the construction process in the corridor of the overhead line are reduced and avoided.

At present, related warning products are available in the field of perimeter protection of overhead lines, and warning is generally realized through LED warning lamps, reflective warning boards, display screens and buzzer alarms. Because the construction site belongs to outdoor environment, warning device can receive the interference of sunlight and receive the influence of site machinery construction noise, it is little to lead to effective warning distance, make on-the-spot engineering personnel can't observe warning light sum and hear the sound of alarm, can't reach anticipated warning effect, and tradition installation warning ball, the warning sign on the wire, need live working or the operation that has a power failure when the installation, the working cost, danger and complexity are all very high, the dismouting is still inconvenient. Some adopt powerful voice broadcast ware though increased the warning distance, but adopt horn loudspeaker, sound can be to the propagation of all sides, can cause noise pollution, influences peripheral resident's daily life to the warning device who has all lacks unified effectual management at present.

Disclosure of Invention

In view of the above, there is a need to provide a warning device capable of safely and effectively protecting the perimeter of an overhead line.

A perimeter protection system for overhead lines, the system comprising:

the warning device is arranged on an iron tower frame of the overhead line and is used for warning on site;

the laser warning module provides a visible laser warning function for the warning device, and the voice warning module provides a voice warning function for the warning device;

the cloud platform is deployed on the power supply local intranet server and used for carrying out comprehensive management on the warning device, and the cloud platform is connected with the warning device through a network.

In one embodiment, the laser warning module comprises: the device comprises a laser emitting unit, a light intensity sensing unit, a laser driving unit, a light beam shaping unit and a reflector unit;

the laser emitting unit is used for providing a laser warning function for the warning device in a preset working mode; the laser emission unit comprises a first laser emission subunit and a second laser emission subunit, the first laser emission subunit and the second laser emission subunit both comprise visible laser emitters and are positioned on a first iron tower of the overhead line, and light emitting directions of the first laser emission subunit and the second laser emission subunit point to a second iron tower;

the light intensity sensing unit is used for detecting the illumination intensity of the current environment;

the laser driving unit is used for providing a power supply for the laser emitting unit and performing switching control and power regulation on the laser emitting unit based on the light intensity sensing unit or based on task content issued by the cloud platform;

the beam shaping unit comprises a first beam shaping subunit and a second beam shaping subunit, wherein the first beam shaping subunit is arranged at a laser outlet of the first laser emission subunit, and the laser emitted by the first laser emission subunit is shaped by adopting a first grating lens; the second beam shaping subunit is arranged at a laser outlet of the second laser emission subunit, and a second grating lens is adopted to carry out shaping treatment on the laser emitted by the second laser emission subunit;

the reflector unit comprises a first reflector and a second reflector, and the first reflector is arranged on the second iron tower and used for intercepting laser beams emitted by the first laser emission subunit; the first reflector is arranged on the second iron tower and used for intercepting laser beams emitted by the first laser emission subunit;

the first iron tower frame and the second iron tower frame are iron tower frames at two ends of the overhead line, and the installation position of the laser emission module is determined based on the condition that a laser warning area formed in the laser warning module is below the lowest point of the overhead line.

In one embodiment, the preset operation mode comprises a continuous emission operation mode or a flicker emission operation mode; the continuous emission working mode refers to that the visible laser emitter emits laser beams uninterruptedly, and the flicker emission working mode refers to that the visible laser emitter emits laser beams discontinuously at a first preset frequency.

In one embodiment, the first beam shaping subunit is used for changing the laser beam emitted by the first laser emission subunit into a beam consisting of a first central light column and a first scattered light column through the first grating lens; the second beam shaping subunit is used for converting the laser beam emitted by the second laser emission subunit into a beam consisting of a second central light column and a second scattered light column through a second grating lens;

the area between the first central light beam and the second central light beam is a laser warning area of the warning device.

In one embodiment, the voice warning module comprises: the device comprises an audio decoding unit, a power amplifying unit and a directional loudspeaker unit;

the audio decoding unit is used for digitally storing audio data in task content issued by the cloud platform and converting the digitally stored audio data into analog audio signals;

the power amplification unit is used for performing power amplification processing on the analog audio signal output by the audio decoding unit during playing;

the directional loudspeaker unit is used for directionally broadcasting the analog audio signal amplified by the power amplification unit;

the audio decoding unit, the power amplifying unit and the directional loudspeaker unit are all mounted on a first iron tower or a second iron tower of the overhead line.

In one embodiment, the directional horn unit comprises:

the ultrasonic directional horn subunit is used for playing the analog audio signal amplified by the power amplification unit towards a preset target by using ultrasonic waves as carrier waves;

the directional horn driving subunit is used for driving the ultrasonic directional horn subunit to start broadcasting, and controlling the broadcasting direction and the broadcasting range of the ultrasonic directional horn subunit;

the preset targets comprise site construction personnel and irrelevant personnel accidentally intruding into a construction site, the broadcasting direction is determined based on the direction of the preset targets, and the broadcasting range is determined based on the number of the preset targets. .

In one embodiment, the main control module comprises: the system comprises a micro-processing unit, a power supply unit and a 4G communication unit;

the micro-processing unit is connected with the laser driving unit and the audio decoding unit and is used for controlling and managing a laser warning device of the laser warning module and a voice warning device of the voice warning module;

the power supply unit is used for providing power support for all the modules;

the 4G communication unit is used for providing network connection between the micro-processing unit and the cloud platform;

the micro-processing unit, the power supply unit and the 4G communication unit are integrally mounted on a first iron tower or a second iron tower of an overhead line in the form of a case.

In one embodiment, the power supply unit comprises a solar power supply unit or a battery power supply unit.

In one embodiment, the micro Processing unit includes at least one of a single chip, a DSP (Digital Signal Processing) chip, an ARM chip, and an FPGA (Field Programmable Gate Array) chip.

In one embodiment, the cloud platform comprises: the system comprises a machine account management unit, an equipment control unit, a timing task unit, a real-time task unit, a playing resource unit, a user management unit and a system configuration unit;

the machine account management unit is used for associating and storing the characteristic information of the warning device and uniformly managing the warning device based on the characteristic information, wherein the characteristic information comprises equipment number, IP address, line name, voltage level and tower number information;

the equipment control unit is used for displaying a first equipment state of the warning device and controlling a second equipment state of the warning device; the first equipment state comprises a connection state, signal intensity, battery voltage, a task state, current volume and a sound forbidden state; the second equipment state comprises an opening state, volume control and forbidden tone control; the sound forbidding control comprises sound forbidding of single equipment, sound forbidding of equipment in the group or sound forbidding of all the equipment;

the timed task unit is used for editing and managing timed task contents, wherein the timed task contents comprise a task name, a broadcast terminal, a broadcast file, volume, a starting date, an ending date, broadcast times, starting time and an execution unit;

the real-time task unit is used for broadcasting new task contents in real time and managing a single warning device of the overhead line or a plurality of warning devices of the overhead line in real time;

the broadcasting resource unit is used for uploading a broadcasting file and an alarm file and identifying the format of an audio file;

the user management unit is used for managing the type of the user and the authority of the user;

the system configuration unit is used for managing system configuration, passwords and priority levels;

and the task content is transmitted to the laser warning module and the voice warning module through network connection between the cloud platform and the warning device.

Drawings

FIG. 1 is a block diagram of a perimeter protection system for an overhead line in accordance with one embodiment;

FIG. 2 is a schematic diagram of a frame of the laser warning module according to an embodiment;

FIG. 3 is a block diagram of an exemplary voice alert module;

FIG. 4 is a schematic view of an embodiment of a perimeter protection system installation for an overhead line;

FIG. 5 is a functional composition diagram of a cloud platform in one embodiment;

FIG. 6 is a flowchart of a cloud platform main process in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various terms, but these terms are not limited by these terms unless otherwise specified. These terms are only used to distinguish one term from another. For example, the first predetermined wavelength and the second predetermined wavelength may be the same or different without departing from the scope of the present application.

In one embodiment, a perimeter protection system for an overhead line is provided, referring to fig. 1, comprising a warning device 101, which is composed of a laser warning module 1011, a voice warning module 1012 and a main control module 1013, wherein the warning device 101 is installed on an iron tower of the overhead line and is used for warning in the field;

the laser warning module 1011 provides a visible laser warning function for the warning device 101, and the voice warning module 1012 provides a voice warning function for the warning device 101;

the cloud platform 102 is deployed on a power supply local intranet server and used for carrying out comprehensive management on the warning device 101, and network connection exists between the cloud platform 102 and the warning device 101.

It should be noted that the cloud platform is deployed on a power supply local intranet server and is a network platform for unified and comprehensive management of the warning device. Generally, in order to save resources, it is enough that one power supply office has one cloud platform to process overhead lines in a jurisdiction area, and one cloud platform can manage a plurality of warning devices at the same time. When the warning device is used, the special APN card is used for communicating with the cloud platform, and a user can remotely manage the warning device on site on the cloud platform through the PC terminal or the mobile terminal.

In the embodiment of the invention, the warning device consists of a laser warning module, a voice warning module and a main control module, and is arranged on an iron tower frame of an overhead line and used for warning on site; the laser warning module provides a visible laser warning function for the warning device, and the voice warning module provides a voice warning function for the warning device; the cloud platform is deployed on the power supply local intranet server and used for carrying out comprehensive management on the warning device, and the cloud platform is connected with the warning device through a network. The warning device adopts laser beams to form a warning area, laser has good penetrability, and can be prevented from being influenced by sunlight or severe weather, so that a light beam warning line is formed to mark the safety distance of the overhead line, and the laser warning module is arranged on the iron tower frame, so that the danger generated when the laser warning module is arranged on a live line and the external damage to the overhead line caused by the warning device are avoided, the voice warning module can improve the safety consciousness of field workers and reduce the noise pollution to surrounding residents through directional voice broadcasting, and in the embodiment of the invention, a background management function is added through a cloud platform, so that the remote management voice broadcasting and the laser power adjustment are realized, and the unified management is facilitated.

In combination with the content of the above embodiment, referring to fig. 2, in an embodiment, the laser warning module 1011 includes a laser emitting unit 201, a light intensity sensing unit 202, a laser driving unit 203, a beam shaping unit 204, and a reflector unit 205;

the laser emitting unit 201 is used for providing a laser warning function for the warning device in a preset working mode; the laser emission unit 201 comprises a first laser emission subunit and a second laser emission subunit, wherein the first laser emission subunit and the second laser emission subunit both comprise visible laser emitters and are positioned on a first iron tower of the overhead line, and the light emitting directions of the first laser emission subunit and the second laser emission subunit point to a second iron tower;

a light intensity sensing unit 202 for detecting the illumination intensity of the current environment;

the laser driving unit 203 is used for providing a power supply for the laser emitting unit and performing switching control and power regulation on the laser emitting unit based on the light intensity sensing unit or based on task content issued by the cloud platform;

the beam shaping unit 204 comprises a first beam shaping subunit and a second beam shaping subunit, wherein the first beam shaping subunit is arranged at a laser outlet of the first laser emission subunit, and is used for shaping the laser emitted by the first laser emission subunit by adopting a first grating lens; the second beam shaping subunit is arranged at a laser outlet of the second laser emission subunit, and a second grating lens is adopted to carry out shaping treatment on the laser emitted by the second laser emission subunit;

the reflector unit 205 comprises a first reflector and a second reflector, wherein the first reflector is mounted on the second iron tower and used for intercepting the laser beam emitted by the first laser emission subunit; the first reflector is arranged on the second iron tower and used for intercepting laser beams emitted by the first laser emission subunit;

the first iron tower frame and the second iron tower frame are iron tower frames at two ends of the overhead line, and the installation position of the laser emission module is determined based on the condition that a laser warning area formed in the laser warning module is below the lowest point of the overhead line.

It should be noted that the laser driving unit 203 and the light intensity sensing unit 202 are both connected to the main control module 1013, so as to adjust the emission power of the laser beam emitted by the laser emitting unit 201. The laser driving unit 203 drives the laser beam emitted by the laser emitting unit 201 to reach the reflector 205 after being shaped by the beam shaping unit 204, and the surface of the reflector 205 is made of a diffuse reflection material, so that the laser beam can be diffusely reflected, and the laser beam can be intercepted.

Specifically, each laser emission subunit in the embodiment of the present invention employs a high-power visible laser emitter, where the high-power visible laser emitter may be a yellow-green laser with a wavelength of 532nm, and specific parameters of the laser emitter may be determined according to a construction environment of an application scene, or may be determined by light sensation intensity obtained by a light intensity sensing unit in a use process, for example, when the power is the same, natural light intensity in the daytime may employ green laser with a relatively high brightness, and in such a dark environment as night, blue laser with a medium brightness may be employed; or the laser with the same color has natural light intensity in the daytime, the laser power is adjusted to be large, and is dark at night, and the laser power is adjusted to be small.

The laser driving unit 203 provides a power supply for the laser emitting unit 201, and the laser driving unit 203 can perform on-off control and power adjustment on the laser emitting unit 201 according to the illumination intensity of the current environment detected by the light intensity sensing unit 202, for example, when the light intensity sensing unit 202 detects that the illumination intensity of the current environment is large, the laser driving unit 203 increases the emitting power of the laser emitting unit 201; the laser driving unit 203 may further adjust the emission power of the laser emission unit 201 according to the task content issued by the cloud platform. The two laser emission subunits are respectively arranged at two sides of the first iron tower frame in a split structural mode, light emitting directions point to the second iron tower frame, the installation positions of the two laser emission subunits can be determined according to the lowest point of the overhead line, and particularly, as long as the condition that the lowest point of the overhead line is above a laser warning area formed by the two laser emission subunits is met, a proper installation position can be selected according to the site construction condition. Correspondingly, two corresponding beam shaping subunits and two reflecting plates are installed according to the installation positions of the two laser emitting subunits.

In an embodiment of the present invention, the laser warning module includes: the laser warning module adopts two beams of visible lasers, and can form visible warning lines at two outer boundaries of a lead to form an accurate and obvious warning area, so that the actual requirements are met; the light beam covers the whole wire, and the warning area is wide; the laser has high brightness and is not easy to be interfered by big sunlight; the identifiability of the laser is increased through the shaping and beam expanding of the laser. The surface of the reflector adopts diffuse reflection materials, so that the mirror reflection of light beams is prevented from hurting surrounding personnel, the identifiability of light spots can be increased, and the observation by field engineering personnel can be facilitated. The two paths of laser can form an obvious warning area consisting of two beams of central light columns below the wire, the scattered light beams increase the visual range and the identifiability of the warning device, and the scattered light beams are weak in light intensity and cannot cause harm to surrounding personnel.

With reference to the above embodiments, in one embodiment, the preset operation mode includes a continuous emission operation mode or a blinking emission operation mode; the continuous emission working mode refers to that the visible laser emitter emits laser beams uninterruptedly, and the flicker emission working mode refers to that the visible laser emitter emits laser beams discontinuously at a first preset frequency.

The first preset frequency may be set empirically according to a specific application scenario. Specifically, by the laser emitter of laser drive unit drive laser emission unit, adjust the transmitting power of the laser beam that laser emitter sent, adopt continuous transmission mode at construction site busy period, form continuous laser beam, guarantee that constructor can see laser warning at every moment, adopt scintillation transmission mode at busy period, intermittent emission laser beam.

In the implementation of the invention, the preset working modes comprise a continuous emission working mode and a flicker emission working mode, and the working modes are selected according to specific construction conditions, so that the warning device can save energy, reduce emission and reduce power consumption while playing a warning function.

In combination with the above embodiments, in one embodiment, the first beam shaping subunit is configured to change the laser beam emitted by the first laser emission subunit into a beam composed of a first central light pillar and a first scattered light pillar through the first grating lens;

the second beam shaping subunit is used for converting the laser beam emitted by the second laser emission subunit into a beam consisting of a second central light column and a second scattered light column through a second grating lens;

the area between the first central light beam and the second central light beam is a laser warning area of the warning device.

It should be noted that the position relationship between the first central light pillar and the second central light pillar may be parallel or not, and may be on the same horizontal plane, or not, that is, as long as the laser warning area formed between the first central light pillar and the second central light pillar is below the overhead line, the laser warning area can separate the construction space from the overhead line, and warn the constructor that the constructor cannot cross the laser warning area during construction, the installation position of the beam shaping unit (or the position of the laser emitting unit, because the beam shaping unit is the light outlet of the laser emitter installed in the laser emitting unit) is not specifically limited. A lenticular lens is an optical device that can be adjusted to achieve a desired treatment of a light beam.

In an embodiment of the present invention, the first beam shaping subunit is configured to change the laser beam emitted by the first laser emission subunit into a beam composed of a first central beam and a first scattered beam through the first grating lens; the second beam shaping subunit is used for converting the laser beam emitted by the second laser emission subunit into a beam consisting of a second central light column and a second scattered light column through a second grating lens; the area between the first central light beam and the second central light beam is a laser warning area of the warning device. The beam shaping unit can carry out shaping constraint on the laser beam emitted by the laser emitting unit, the grating lens is utilized to divide the laser beam into a central beam and a scattered beam, the central beam forms a laser warning area of the overhead line warning device, and the scattered beam is a beam scattered in a star shape, so that the laser beam can play a warning role, meanwhile, the identifiability of the warning area can be enhanced, and the harm to field constructors is reduced.

In combination with the content of the above-mentioned embodiment, in an embodiment, referring to fig. 3, the voice warning module includes: an audio decoding unit 301, a power amplifying unit 302 and a directional speaker unit 303;

the audio decoding unit 301 is configured to digitally store audio data in task content delivered by the cloud platform, and convert the digitally stored audio data into an analog audio signal;

a power amplifying unit 302, configured to perform power amplification processing on the analog audio signal output by the audio decoding unit during playing;

a directional speaker unit 303 for directionally broadcasting the analog audio signal amplified by the power amplifying unit;

the audio decoding unit 301, the power amplifying unit 302 and the directional horn unit 303 are all mounted on a first iron tower or a second iron tower of the overhead line.

It should be noted that task contents issued in the cloud platform are input to the audio decoding unit through the main control module, the audio decoding unit may perform digital storage on the task contents according to a specific number, then perform decoding processing on the digital audio data when broadcasting is required to obtain an analog audio signal, and send the obtained analog audio signal to the power amplifying unit, where the specific number may be a number obtained according to different task contents. In the power amplification unit, an a-class, B-class or AB-class audio power amplifier may be adopted to amplify the analog audio signal, and the specific amplification degree may refer to the requirements of a specific application scenario. The amplified analog audio signals are played through the directional loudspeaker unit, the directional loudspeaker unit broadcasts the audio signals by utilizing a directional sound technology, and the ultrasonic loudspeaker is installed on the iron tower frame and can be adjusted in direction according to the movement of designated workers.

Generally, in order to facilitate installation during use, the audio decoding unit, the power amplifying unit and the directional speaker unit are assembled together, and the specific installation position of the whole voice warning module on the iron tower frame can be determined according to the position requirement of the directional speaker, see fig. 4 for an installation position schematic diagram of the warning device.

In the embodiment of the invention, the voice warning module comprises an audio decoding unit, a power amplifying unit and a directional loudspeaker unit, wherein the audio decoding unit is connected with the main control module, so that the voice broadcasting can be remotely managed, the functions of remote broadcasting, timing broadcasting and the like can be realized, and the voice broadcasting time, content, volume and frequency can be remotely modified according to the field condition. And voice broadcast adopts directional loudspeaker, and its "high directive property" characteristic can effectively avoid the noise pollution problem that ordinary bugle loudspeaker lead to, and its "propagation distance is far away" characteristic can reduce the sound attenuation.

In combination with the above embodiments, in one embodiment, the directional horn unit includes:

the ultrasonic directional horn subunit is used for playing the analog audio signal amplified by the power amplification unit towards a preset target by using ultrasonic waves as carrier waves;

the directional horn driving subunit is used for driving the ultrasonic directional horn subunit to start broadcasting, and controlling the broadcasting direction and the broadcasting range of the ultrasonic directional horn subunit;

the preset targets comprise site construction personnel and irrelevant personnel who accidentally break into a construction site, the broadcasting direction is determined based on the directions of the preset targets, and the broadcasting range is determined based on the number of the preset targets.

The ultrasonic directional horn firstly loads a low-frequency sound signal on a high-frequency signal with strong directivity, then the low-frequency sound signal is amplified and emitted into the air, then the air can rapidly filter the high-frequency signal, an audible sound signal in the high-frequency signal can be naturally filtered out, and the high-frequency signal is directionally propagated like laser.

In the embodiment of the invention, the directional horn unit comprises an ultrasonic directional horn subunit and a directional horn driving subunit, the ultrasonic directional horn is adopted for voice broadcast, the high directivity characteristic of the directional horn unit can effectively avoid the problem of noise pollution caused by a common horn, the long propagation distance characteristic of the directional horn unit can reduce sound attenuation, a driver of a field engineering vehicle can obviously hear the voice broadcast content, and the direction and the range of the ultrasonic horn can be adjusted through the directional horn driving unit, so that the voice warning device is more flexible in use and can adapt to different application scenes.

With reference to the content of the foregoing embodiment, in an embodiment, the main control module includes: the system comprises a micro-processing unit, a power supply unit and a 4G communication unit;

the micro-processing unit is connected with the laser driving unit and the audio decoding unit and is used for controlling and managing a laser warning device of the laser warning module and a voice warning device of the voice warning module;

the power supply unit is used for providing power support for the warning device;

the 4G communication unit is used for providing network connection between the micro-processing unit and the cloud platform;

wherein the micro-processing unit, the power supply unit and the 4G communication unit are integrally arranged on a first iron tower or a second iron tower of the overhead line in the form of a case

The micro-processing unit is connected with the laser driving unit and the audio decoding unit on the one hand, and on the other hand, wireless connection is realized with the cloud platform through the 4G communication unit, based on the connection structure, the laser warning module and the voice warning module are controlled by utilizing the cloud platform background, the laser warning module and the voice warning module can be adjusted in real time, a periodic task can be achieved below, and the periodic task is implemented in the specific laser warning module and the voice warning module through the micro-processing unit. The periodic task is a warning requirement set according to a specific construction environment, for example: the content of voice broadcast, voice broadcast's volume, the power of laser, the mode of laser etc.. In the implementation process, the voice broadcast and the laser emission mode can be freely set through the cloud platform, different timing tasks can be set according to different field environments, the tasks can be organically combined, and different schemes are formed to meet the requirements of different occasions and different time.

The 4G communication unit is a 4G full-network communication (mobile communication telecommunication) wireless data transmission unit, is usually used for networking communication with a server with a fixed IP (such as a virtual cloud host or a fixed external network broadband access computer), and can be connected with each single chip microcomputer device and industrial control intelligent communication equipment through an RS485 or 232 or TTL (Transistor-Transistor Logic) interface. In the device provided by the embodiment of the invention, the 4G communication unit is in line connection with the main control chip used in the micro-processing unit and is in wireless connection with the cloud platform, and the background pipeline function of the cloud platform is realized through the connection mode. The model of the 4G communication unit used is not particularly limited in the embodiments of the present invention.

In the system provided by the embodiment of the invention, the main control module comprises a micro-processing unit, a cloud platform, a power supply unit and a 4G communication unit. The warning device makes the warning device become more intelligent through 4G communication unit and microprocessing unit, has realized more advanced functions such as volume management, task management, scheme management, real-time propaganda for warning device's warning effect is nimble more various, can adapt to the service environment of various differences, can effectively strengthen warning effect, reduces the incidence of accident.

In combination with the above embodiments, in one embodiment, the power supply unit includes a solar power supply unit or a battery power supply unit.

The power supply unit provides power for the field warning device in the whole overhead line perimeter protection system, wherein the solar power supply unit comprises a photoelectric tube conversion unit, the photoelectric conversion unit converts solar energy into electric energy and outputs the electric energy to electronic components in the micro-processing unit, the laser driving unit and the light intensity sensing unit, and the solar power supply unit is generally used in sunny weather, namely when the sun is well illuminated. The battery power supply unit supplies power to the site warning device using a battery, and the voltage is stable, but the battery needs to be checked or charged before use.

In the embodiment of the invention, the power supply unit comprises solar power supply or storage battery power supply, the solar power supply module is convenient and quick, environment-friendly and economical, and the voltage provided by the storage battery power supply unit is stable and can be used in any working environment. The power supply mode provided by the embodiment of the invention can meet the power requirement of the whole warning device.

With reference to the content of the foregoing embodiment, in an embodiment, the micro processing unit includes at least one of the following four chips, which are a single chip, a dsp (digital Signal processing) chip, an ARM chip, and an fpga (field Programmable Gate array) chip.

In conjunction with the above embodiments, in one embodiment, referring to fig. 4, the cloud platform includes: the system comprises a machine account management unit, an equipment control unit, a timing task unit, a real-time task unit, a playing resource unit, a user management unit and a system configuration unit;

the machine account management unit is used for associating and storing the characteristic information of the warning device and uniformly managing the warning device based on the characteristic information, wherein the characteristic information comprises equipment number, IP address, line name, voltage level and tower number information;

the equipment control unit is used for displaying a first equipment state of the warning device and controlling a second equipment state of the warning device; the first equipment state comprises a connection state, signal intensity, battery voltage, a task state, current volume and a sound forbidden state; the second equipment state comprises an opening state, volume control and forbidden tone control; the sound forbidding control comprises sound forbidding of single equipment, sound forbidding of equipment in the group or sound forbidding of all the equipment;

the timed task unit is used for editing and managing timed task contents, wherein the timed task contents comprise task names, broadcast terminals, broadcast files, volume sizes, start dates, end dates, broadcast times and start times;

the real-time task unit is used for broadcasting new task contents in real time and managing a warning device of a single overhead line or warning devices of a plurality of overhead lines in real time;

the broadcasting resource unit is used for uploading a broadcasting file and an alarm file and identifying the format of an audio file;

the user management unit is used for managing the type of the user and the authority of the user;

the system configuration unit is used for managing system configuration, passwords and priority levels;

and the task content is transmitted to the laser warning module and the voice warning module through network connection between the cloud platform and the warning device.

It should be noted that "equipment" is a general name of a laser warning module and a voice warning module in a warning device in a cloud platform. In the device control unit, the display of the first device state of the warning device, i.e. the "device state display" function in the function diagram of fig. 5, the control of the second device state of the warning device, i.e. the "device state control" function in the function diagram of fig. 5, and the on state in the second device state, i.e. the "start/stop control" function in the function diagram of fig. 5. The volume control priority in the device control unit is higher than the volume level in the timed task content. In the timing task unit, the broadcast terminal can select a single device or simultaneously select a plurality of devices; the broadcast file can select a single content or simultaneously select a plurality of contents; the playing times can be set according to specific requirements; the task content in the timing task unit can be set according to different field environments, for example, the timing task unit can be divided into a daytime scheme, a nighttime scheme, a summer scheme, a winter scheme, an engineering vehicle broadcast scheme, a tower crane construction site broadcast scheme and the like according to scenes; according to the content, the method can be divided into: legal and legal rules report scheme, safety notice report scheme and warning semantic report scheme. These tasks can be organically combined to form a timing scheme.

The cloud platform is deployed on a power supply local intranet server, and the on-site warning device is communicated with the cloud platform through the micro-processing unit and the 4G communication unit. In a server database for storing the contents of the equipment such as account information, state information, task content, playing resources, user information, system configuration information and the like, a user can modify stored data and control a field warning device on a cloud platform. Referring to fig. 6, a flow chart of a main program used by the whole cloud platform system is shown, wherein the system is started, hardware is initialized, and the cloud platform system is ensured to be used after no abnormality exists; whether a real-time task exists in the real-time task unit is checked, if the real-time task enters a real-time broadcasting task, if the real-time task does not exist, whether a timing task in the timing task unit expires is checked, if the timing task expires, a timing task reading link is entered, voice broadcasting and laser emission are carried out after reading, and the state of the whole equipment, such as the volume of voice broadcasting, the intensity of laser emission and the like, is displayed and monitored by the equipment control unit.

In the embodiment of the invention, the cloud platform comprises a machine account management unit, an equipment control unit, a timing task unit, a real-time task unit, a playing resource unit, a user management unit and a system configuration unit, and by utilizing the units, the modes of voice broadcasting and laser emission can be freely set, so that higher functions of volume management, task management, scheme management, real-time calling and the like are realized, the warning effect of the warning device is more flexible and diversified, different timing tasks can be set according to different field environments to adapt to different using environments, the warning effect can be effectively enhanced, and the accident occurrence rate is reduced; the user can also select single or a plurality of warning devices to carry out on-site shouting through mobile phone software, so that on-site engineering personnel can feel the supervision pressure of a power department in real time, and the safety awareness is improved.

It should be noted that the technical solutions described above may be implemented as independent embodiments in actual implementation processes, or may be combined with each other and implemented as combined embodiments. In addition, when the contents of the embodiments of the present invention are described above, the different embodiments are described according to the corresponding sequence only based on the idea of convenient description, for example, the sequence of the data flow is not limited to the execution sequence between the different embodiments, nor is the execution sequence of the steps in the embodiments limited. Accordingly, in the actual implementation process, if it is necessary to implement multiple embodiments provided by the present invention, the execution sequence provided in the embodiments of the present invention is not necessarily required, but the execution sequence between different embodiments may be arranged according to requirements.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.