CN107611557A - A kind of energy-saving parabola antenna snow removal system - Google Patents

A kind of energy-saving parabola antenna snow removal system Download PDF

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Publication number
CN107611557A
CN107611557A CN201711019194.XA CN201711019194A CN107611557A CN 107611557 A CN107611557 A CN 107611557A CN 201711019194 A CN201711019194 A CN 201711019194A CN 107611557 A CN107611557 A CN 107611557A
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CN
China
Prior art keywords
module
snow
dimensional head
parabola antenna
media
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Pending
Application number
CN201711019194.XA
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Chinese (zh)
Inventor
张瑞勋
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Hefei Mdt Infotech Ltd
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Hefei Mdt Infotech Ltd
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Publication date
Application filed by Hefei Mdt Infotech Ltd filed Critical Hefei Mdt Infotech Ltd
Priority to CN201711019194.XA priority Critical patent/CN107611557A/en
Publication of CN107611557A publication Critical patent/CN107611557A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention discloses a kind of energy-saving parabola antenna snow removal system, it is characterised in that including:Fan, air channel, spray wind nozzle, camera, three-dimensional head, controller, picture recognition module, video encoding module, power module, mixed-media network modules mixed-media, cell phone application;Three-dimensional head is provided with fan, air channel, spray wind nozzle, camera on the outside of parabola antenna;Cell phone application network interruption is alarmed, display system state, is set three-dimensional head cruise presetting bit, displaying scene video, is sent instruction of sweeping away snow;Controller receive camera image, send picture recognition module all the way, obtain which cruise presetting bit corresponding to parabola antenna subregion have accumulated snow, another way send cell phone application after video encoding module encodes;Controller receives instruction of sweeping away snow, and starts fan, controls three-dimensional head to enter cruise mode, travels through the presetting bit of corresponding accumulated snow subregion, spray wind snow removing.The present invention only cleans snowy region, energy-conserving and environment-protective, shortens every all over the cleaning time.

Description

A kind of energy-saving parabola antenna snow removal system
Technical field
The present invention relates to parabola antenna snow-clearing technique field, is related to a kind of energy-saving parabola antenna snow removal system.
Background technology
The transmission and reception of satellite and microwave signal typically use parabola antenna.The work of parabola antenna can be influenceed by snowing Make efficiency, it is a necessary job to remove accumulated snow to parabola antenna.In general parabola antenna snow removal system is circulation to day Swept away snow in each region in line face.Typically in the case of continuous sweep away snow, the snowy region having in some regions is without snow, if each No matter region whether there is accumulated snow will clean 1 time, neither energy-conserving and environment-protective in 1 circulation of sweeping away snow, and also delay and clean the time.This is just Need a kind of parabola antenna snow removal system of efficient energy-saving.
The content of the invention
It is an object of the invention to provide a kind of energy-saving parabola antenna snow removal system, to solve prior art presence The problem of.
The technical problems to be solved by the invention are realized using following technical scheme:
A kind of energy-saving parabola antenna snow removal system, it is characterised in that including:Fan, air channel, spray wind nozzle, shooting Head, three-dimensional head, controller, picture recognition module, video encoding module, power module, mixed-media network modules mixed-media, cell phone application;
The fan, air channel, spray wind nozzle are arranged on three-dimensional head, with three-dimensional cloud platform rotation;
The camera, parabola antenna video image is gathered, on three-dimensional head base, do not turned with three-dimensional head Dynamic, angular field of view includes whole parabola antenna;
The three-dimensional head, on the outside of parabola antenna, with the section of parabola antenna axis into more than 0 degree and being less than 90 degree of angles;
The fan, camera, three-dimensional head, picture recognition module, video encoding module, power module, mixed-media network modules mixed-media It is connected, is controlled by the controller by signal wire with controller;
The controller, it is MCU, DSP, FPGA, ARM one kind;
Described image identification module, the parabola antenna video of camera collection is identified per two field picture, identified There is accumulated snow in which region of parabola antenna;The video encoding module, real-time coding compression is carried out to video to transmit, is encoded Mode for H.264, H.265, Mpeg4 one kind;
The power module is civil power or solar powered, band battery, is fan, camera, three-dimensional head, control Device, picture recognition module, video encoding module, mixed-media network modules mixed-media power supply;
The mixed-media network modules mixed-media, can access LAN or internet, and controller carries out network by mixed-media network modules mixed-media and cell phone application Communication;
The cell phone application, including network detection module, system state module, video module, cradle head preset positions set mould Block, snow removing module;
The network detection module, the network connection of detection and control device, interruption are then alarmed;
The system state module, receive the system status information that simultaneously display controller is sent;The system status information, Including fan-status, shooting head status, three-dimensional head state, picture recognition module state, video encoding module state, power supply mould Bulk state, mixed-media network modules mixed-media state;
The video module, the parabola antenna real-time video of camera collection is shown after video decoding;
The cradle head preset positions setup module, the cruise presetting bit of three-dimensional head is set;
The snow removing module, sent by mixed-media network modules mixed-media to controller and sweep away snow instruction and stopping is swept away snow instruction;
The course of work of described image identification module is:
1 two field picture of continuous reading per second, carries out black white binarization processing, obtains binary image per second;
From the 2nd second, the binary image of current second and the binary image of upper 1 second are subjected to image difference calculating, obtained Error image;
Error image is divided into M*N sub-regions, M*N cruise presetting bit of corresponding three-dimensional head;
The number num, such as num of white pixel in calculating per sub-regions>Lower limit lev, then the subregion is marked to have product Snow;
M*N arrays are returned, 1 number group membership in array is corresponded to per sub-regions, as the subregion has accumulated snow, then the number Group membership's value is 1, and otherwise the array member value is 0;
The course of work of the controller is:
Timing sends system status information to cell phone application;
The cruise presetting bit for receiving three-dimensional head sets instruction, sets and update the cruise presetting bit of three-dimensional head;
The image of real-time reception camera collection, point 2 tunnels processing, a route picture recognition module carry out image recognition, obtained Have accumulated snow to parabola antenna subregion corresponding to which cruise presetting bit, another way after video encoding module coding compression, Real-time video code stream is sent from mixed-media network modules mixed-media to cell phone application;
Reception is swept away snow instruction, then starts fan, control three-dimensional head to enter cruise mode, traveling through each corresponding sub-region has The presetting bit of accumulated snow, directly to the corresponding sub-region of parabola antenna, spray wind nozzle, which sprays high speed winds, to be continued in each presetting bit direction The operation of 1 presetting bit is completed in snow removing, delay, and three-dimensional head cruise drives spray wind nozzle rotation, target trajectory covering parabola All snowy regions of antenna, status information in progress of sweeping away snow is sent to cell phone application;
Receive stopping to sweep away snow instruction, then close fan, control three-dimensional head to reset, the stopping shape that sweeps away snow is sent to cell phone application State information;
The course of work of the cell phone application is:
The network connection of timing detection and control device, such as network connection interruption, then alarm;
The system status information that timing receipt and display controller are sent;
The cruise presetting bit of three-dimensional head is set;
Show the parabola antenna live video image of camera collection;
When needing snow removing, transmission sweeps away snow instruction to controller;
When terminating to remove the snow, send stopping and sweep away snow instruction to controller.
The beneficial effects of the invention are as follows:
Cell phone application network interruption is alarmed, display system state, sets the cruise presetting bit of three-dimensional head, shows parabola Antenna live video image, instruction is swept away snow in transmission and stopping is swept away snow instruction;Controller receives the image of camera collection, point 2 tunnels Processing, a route picture recognition module carry out image recognition, obtain parabola antenna subregion corresponding to which cruise presetting bit There is accumulated snow, another way sends real-time video code stream after video encoding module coding compression from mixed-media network modules mixed-media to cell phone application;Control Device processed receives instruction of sweeping away snow, and starts fan, controls three-dimensional head to enter cruise mode, travels through each corresponding parabola antenna sub-district There is the presetting bit of accumulated snow in domain, drives spray wind nozzle rotation, all snowy regions of target trajectory covering parabola antenna, is removed Snow;Controller receives stopping and swept away snow instruction, closes fan, controls three-dimensional head reset.The present invention only cleans snowy region, saves Environmental protection, shorten and clean time of one time, cell phone application real-time video monitoring snow removing scene.
Brief description of the drawings
Fig. 1 is the system construction drawing of the embodiment of the present invention.
Fig. 2 is the cell phone application function structure chart of the embodiment of the present invention.
Embodiment
In order that technological means, creation feature, reached purpose and effect that the present invention realizes are easy to understand, below will The invention will be further described with accompanying drawing in conjunction with the embodiments.
As depicted in figs. 1 and 2, a kind of energy-saving parabola antenna snow removal system, it is characterised in that including:Fan 1, wind Road 2, spray wind nozzle 3, camera 5, three-dimensional head 4, controller 6, picture recognition module 7, video encoding module 8, power module 9th, mixed-media network modules mixed-media 10, cell phone application 11;
The fan 1, air channel 2, spray wind nozzle 3 are arranged on three-dimensional head 4, are rotated with three-dimensional head 4;
The camera 5, parabola antenna video image is gathered, on the three-dimensional base of head 4, not with three-dimensional head 4 rotate, and angular field of view includes whole parabola antenna;
The three-dimensional head 4, on the outside of parabola antenna, with the section of parabola antenna axis into more than 0 degree and small In 90 degree of angles;
The fan 1, camera 5, three-dimensional head 4, picture recognition module 7, video encoding module 8, power module 9, net Network module 10 is connected with controller 6 by signal wire, and controlled device 6 controls;
The controller 6, it is MCU, DSP, FPGA, ARM one kind;
Described image identification module 7, the parabola antenna video that camera 5 gathers is identified per two field picture, identified Going out which region of parabola antenna has accumulated snow;The video encoding module 8, real-time coding compression is carried out to video to transmit, Coded system for H.264, H.265, Mpeg4 one kind;
The power module 9 is civil power or solar powered, band battery, be fan 1, camera 5, three-dimensional head 4, Controller 6, picture recognition module 7, video encoding module 8, mixed-media network modules mixed-media 10 are powered;
The mixed-media network modules mixed-media 10, can access LAN or internet, controller 6 pass through mixed-media network modules mixed-media 10 and cell phone application 11 Carry out network communication;
The cell phone application 11, including network detection module, system state module, video module, cradle head preset positions set mould Block, snow removing module;
The network detection module, the network connection of detection and control device 6, interruption are then alarmed;
The system state module, receive the system status information that simultaneously display controller 6 is sent;The system mode letter Breath, including the state of fan 1, the state of camera 5, the state of three-dimensional head 4, the state of picture recognition module 7, the shape of video encoding module 8 State, the state of power module 9, the state of mixed-media network modules mixed-media 10;
The video module, the parabola antenna real-time video that camera 5 gathers is shown after video decoding;
The cradle head preset positions setup module, the cruise presetting bit of three-dimensional head 4 is set;
The snow removing module, sent by mixed-media network modules mixed-media 10 to controller 6 and sweep away snow instruction and stopping is swept away snow instruction;
The course of work of described image identification module 7 is:
1 two field picture of continuous reading per second, carries out black white binarization processing, obtains binary image per second;
From the 2nd second, the binary image of current second and the binary image of upper 1 second are subjected to image difference calculating, obtained Error image;
Error image is divided into M*N sub-regions, M*N cruise presetting bit of corresponding three-dimensional head 4;
The number num, such as num of white pixel in calculating per sub-regions>Lower limit lev, then the subregion is marked to have product Snow;
M*N arrays are returned, 1 number group membership in array is corresponded to per sub-regions, as the subregion has accumulated snow, then the number Group membership's value is 1, and otherwise the array member value is 0;
The course of work of the controller 6 is:
Timing sends system status information to cell phone application 11;
The cruise presetting bit for receiving three-dimensional head 4 sets instruction, sets and update the cruise presetting bit of three-dimensional head 4;
The image that real-time reception camera 5 gathers, point 2 tunnels processing, a route picture recognition module 7 carry out image recognition, Parabola antenna subregion corresponding to obtaining which cruise presetting bit has accumulated snow, and another way encodes through video encoding module 8 to be compressed Afterwards, real-time video code stream is sent from mixed-media network modules mixed-media 10 to cell phone application 11;
Reception is swept away snow instruction, then starts fan 1, control three-dimensional head 4 to enter cruise mode, travel through each corresponding sub-region There is the presetting bit of accumulated snow, directly to the corresponding sub-region of parabola antenna, spray wind nozzle 3 sprays high speed winds and held in each presetting bit direction Continuous snow removing, delay, the operation of 1 presetting bit is completed, the three-dimensional cruise of head 4 drives spray wind nozzle 3 to rotate, and target trajectory covering is thrown All snowy regions of object plane antenna, status information in progress of sweeping away snow is sent to cell phone application 11;
Receive stopping to sweep away snow instruction, then close fan 1, control three-dimensional head 4 to reset, sweep away snow and stop to the transmission of cell phone application 11 Only status information;
The course of work of the cell phone application 11 is:
The network connection of timing detection and control device 6, such as network connection interruption, then alarm;
The system status information that timing receipt and display controller 6 are sent;
The cruise presetting bit of three-dimensional head 4 is set;
Show the parabola antenna live video image that camera 5 gathers;
When needing snow removing, transmission sweeps away snow instruction to controller 6;
When terminating to remove the snow, send stopping and sweep away snow instruction to controller 6.
The network interruption of cell phone application 11 is alarmed, display system state, sets the cruise presetting bit of three-dimensional head 4, shows parabolic Surface antenna live video image, instruction is swept away snow in transmission and stopping is swept away snow instruction;Controller 6 receives the image that camera 5 gathers, point 2 tunnels are handled, and a route picture recognition module 7 carries out image recognition, obtain parabola antenna corresponding to which cruise presetting bit There is accumulated snow in region, and another way sends from mixed-media network modules mixed-media 10 to cell phone application 11 and regarded in real time after the coding compression of video encoding module 8 Frequency code stream;Controller 6 receives instruction of sweeping away snow, and starts fan 1, controls three-dimensional head 4 to enter cruise mode, travels through each correspond to and throws Object plane antenna subregion has the presetting bit of accumulated snow, drives spray wind nozzle 3 to rotate, and target trajectory covering parabola antenna is all snowy Region, removed the snow;Controller 6 receives stopping and swept away snow instruction, closing fan 1, controls three-dimensional head 4 to reset.System is only clear Sweep snowy region, energy-conserving and environment-protective, shorten and clean time of one time, the real-time video monitoring of cell phone application 11 snow removing scene.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although with reference to the foregoing embodiments The present invention is described in detail, it will be understood by those within the art that:It still can be to previous embodiment Described technical scheme is modified, or carries out equivalent substitution to which part technical characteristic;And these are changed or replaced Change, the essence of appropriate technical solution is departed from the spirit and scope of technical scheme of the embodiment of the present invention.

Claims (1)

  1. A kind of 1. energy-saving parabola antenna snow removal system, it is characterised in that including:Fan, air channel, spray wind nozzle, shooting Head, three-dimensional head, controller, picture recognition module, video encoding module, power module, mixed-media network modules mixed-media, cell phone application;
    The fan, air channel, spray wind nozzle are arranged on three-dimensional head, with three-dimensional cloud platform rotation;
    The camera, parabola antenna video image is gathered, on three-dimensional head base, not with three-dimensional cloud platform rotation, Angular field of view includes whole parabola antenna;
    The three-dimensional head, on the outside of parabola antenna, the section with parabola antenna axis is into more than 0 degree and less than 90 degree Angle;
    The fan, camera, three-dimensional head, picture recognition module, video encoding module, power module, mixed-media network modules mixed-media and control Device processed is connected by signal wire, is controlled by the controller;
    The controller, it is MCU, DSP, FPGA, ARM one kind;
    Described image identification module, the parabola antenna video of camera collection is identified per two field picture, identifies parabolic There is accumulated snow in which region of surface antenna;
    The video encoding module, to video carry out real-time coding compression to transmit, coded system for H.264, H.265, Mpeg4 one kind;
    The power module is civil power or solar powered, band battery, is fan, camera, three-dimensional head, controller, figure As identification module, video encoding module, mixed-media network modules mixed-media power supply;
    The mixed-media network modules mixed-media, can access LAN or internet, and controller carries out network with cell phone application by mixed-media network modules mixed-media and led to News;
    The cell phone application, including network detection module, system state module, video module, cradle head preset positions setup module, remove Avenge module;
    The network detection module, the network connection of detection and control device, interruption are then alarmed;
    The system state module, receive the system status information that simultaneously display controller is sent;The system status information, including Fan-status, shooting head status, three-dimensional head state, picture recognition module state, video encoding module state, power module shape State, mixed-media network modules mixed-media state;
    The video module, the parabola antenna real-time video of camera collection is shown after video decoding;
    The cradle head preset positions setup module, the cruise presetting bit of three-dimensional head is set;
    The snow removing module, sent by mixed-media network modules mixed-media to controller and sweep away snow instruction and stopping is swept away snow instruction;
    The course of work of described image identification module is:
    1 two field picture of continuous reading per second, carries out black white binarization processing, obtains binary image per second;
    From the 2nd second, the binary image of current second and the binary image of upper 1 second are subjected to image difference calculating, obtain difference Image;
    Error image is divided into M*N sub-regions, M*N cruise presetting bit of corresponding three-dimensional head;
    The number num, such as num of white pixel in calculating per sub-regions>Lower limit lev, then the subregion is marked to have accumulated snow;
    Return to M*N arrays, 1 number group membership in array corresponded to per sub-regions, as the subregion has accumulated snow, then the array into Member's value is 1, and otherwise the array member value is 0;
    The course of work of the controller is:
    Timing sends system status information to cell phone application;
    The cruise presetting bit for receiving three-dimensional head sets instruction, sets and update the cruise presetting bit of three-dimensional head;
    The image of real-time reception camera collection, point 2 tunnels processing, a route picture recognition module carry out image recognition, which are obtained Parabola antenna subregion corresponding to a little cruise presetting bits has accumulated snow, and another way is after video encoding module coding compression, by net Network module sends real-time video code stream to cell phone application;
    Reception is swept away snow instruction, then starts fan, control three-dimensional head to enter cruise mode, traveling through each corresponding sub-region has accumulated snow Presetting bit, directly to the corresponding sub-region of parabola antenna, spray wind nozzle sprays high speed winds and persistently removed the snow in each presetting bit direction, Delay, completes the operation of 1 presetting bit, and three-dimensional head cruise drives spray wind nozzle rotation, target trajectory covering parabola antenna All snowy regions, status information in progress of sweeping away snow is sent to cell phone application;
    Receive stopping to sweep away snow instruction, then close fan, control three-dimensional head to reset, halted state of sweeping away snow is sent to cell phone application and is believed Breath;
    The course of work of the cell phone application is:
    The network connection of timing detection and control device, such as network connection interruption, then alarm;
    The system status information that timing receipt and display controller are sent;
    The cruise presetting bit of three-dimensional head is set;
    Show the parabola antenna live video image of camera collection;
    When needing snow removing, transmission sweeps away snow instruction to controller;
    When terminating to remove the snow, send stopping and sweep away snow instruction to controller.
CN201711019194.XA 2017-10-27 2017-10-27 A kind of energy-saving parabola antenna snow removal system Pending CN107611557A (en)

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Application Number Priority Date Filing Date Title
CN201711019194.XA CN107611557A (en) 2017-10-27 2017-10-27 A kind of energy-saving parabola antenna snow removal system

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CN107611557A true CN107611557A (en) 2018-01-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114824725A (en) * 2022-05-12 2022-07-29 中广(绍兴)有线信息网络有限公司 Satellite antenna snow removal controller and system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205488458U (en) * 2016-04-15 2016-08-17 秦绪彬 Satellite parabolic antenna device that removes snow
CN107044103A (en) * 2016-02-06 2017-08-15 苏州宝时得电动工具有限公司 Automatically walk snow removing equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107044103A (en) * 2016-02-06 2017-08-15 苏州宝时得电动工具有限公司 Automatically walk snow removing equipment
CN205488458U (en) * 2016-04-15 2016-08-17 秦绪彬 Satellite parabolic antenna device that removes snow

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
龚熙等: ""气象卫星接收天线除雪方案分析"", 《气象水文海洋仪器》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114824725A (en) * 2022-05-12 2022-07-29 中广(绍兴)有线信息网络有限公司 Satellite antenna snow removal controller and system

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Application publication date: 20180119