CN207835652U - Tire crane operation whole scene monitoring system - Google Patents

Tire crane operation whole scene monitoring system Download PDF

Info

Publication number
CN207835652U
CN207835652U CN201820060125.7U CN201820060125U CN207835652U CN 207835652 U CN207835652 U CN 207835652U CN 201820060125 U CN201820060125 U CN 201820060125U CN 207835652 U CN207835652 U CN 207835652U
Authority
CN
China
Prior art keywords
image data
drivers
panoramic
cab
monitoring system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201820060125.7U
Other languages
Chinese (zh)
Inventor
李德明
黄海叡
徐军
王滨
宋佳佳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI MINGDONG CONTAINER TERMINALS Ltd
Original Assignee
SHANGHAI MINGDONG CONTAINER TERMINALS Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI MINGDONG CONTAINER TERMINALS Ltd filed Critical SHANGHAI MINGDONG CONTAINER TERMINALS Ltd
Priority to CN201820060125.7U priority Critical patent/CN207835652U/en
Application granted granted Critical
Publication of CN207835652U publication Critical patent/CN207835652U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Closed-Circuit Television Systems (AREA)

Abstract

The utility model is related to a kind of tire crane operation whole scene monitoring system, the monitoring system includes:Image collecting device, image data transmitting device, image processing apparatus and drivers' cab display device;Image collecting device includes:Stockyard panoramic camera acquires simultaneously formation zone vedio data;Suspender aligns video camera, acquires and generates contraposition image data in real time;Drivers' cab video camera acquires and generates driver monitoring image data;Image data transmitting device, by area video image data, contraposition image data and driver monitoring image data are sent to image processing apparatus in real time;The real-time contraposition image data and area video image data that receive are carried out splicing by image processing apparatus, generate panoramic mosaic vedio data, and be back to drivers' cab by described image data transmission device and show equipment;Drivers' cab display device shows panoramic mosaic vedio data.

Description

Tire crane operation whole scene monitoring system
Technical field
The utility model is related to harbour service machinery equipment field more particularly to a kind of tire crane operation whole scene monitoring systems System.
Background technology
In current harbour machinery operation, each operating mechanism operation of tyre crane can only rely on the operation handle of drivers' cab Manually control operation.When carrying out transition operation, driver needs the observation for carrying out 360 degree of uninterrupted peripheral situations just to can guarantee Personnel, facility safety, will produce vision dead zone certainly in the process, there is huge security risk;Meanwhile it carrying out When loading-unloading vehicle operates, driver needs constantly to bend over to observe suspender, container, the alignment situation for collecting latch hole, long-term high intensity Repetitive the loss that can not be retrieved is brought to the health of human body.
Traditional video surveillance system, if user will monitor continuous sheet of extensive area, most common way in real time It is that multiple video cameras are installed, each to be responsible for a small region, the major defect of the program is that user does not have picture entirety sense, it is difficult to Some target in continuous tracking whole region, and low production efficiency, operating personnel, facility safety do not ensure.
Utility model content
The purpose of this utility model is to be directed to prior art defect, is provided a kind of simple in structure, easy to operate, full-featured Tyre crane operation monitoring system.
To achieve the above object, the utility model provides a kind of tire crane operation whole scene monitoring system, including:Image Harvester, image data transmitting device, image processing apparatus and drivers' cab display device;
Described image harvester includes:Stockyard panoramic camera, suspender contraposition video camera, drivers' cab video camera;
The stockyard panoramic camera includes more panoramic cameras, and the more panoramic cameras are respectively arranged at tire At the top of the door leg hung and in the middle part of crossbeam, the video image of below tyre crane and surrounding work area is acquired, generates monitoring The area video image data in multiple and different orientation;
The suspender aligns video camera, is set to below the trolley frame of tyre crane, and video is carried out to bit image to suspender Image Acquisition generates contraposition image data in real time;
The drivers' cab video camera is mounted on drivers' cab, and video image acquisition, generation department are carried out to the operation process of driver Machine monitoring image data;
Image data transmitting device is connected with described image harvester, by the area video image data, in real time Contraposition image data and the driver monitoring image data are sent to image processing apparatus;
Image processing apparatus is connected with described image data transmission device, described in real time to bit image by what is received Data and the area video image data carry out splicing, generate panoramic mosaic vedio data, and pass through the figure Equipment is shown as data transmission device is back to the drivers' cab;
Drivers' cab display device, the drivers' cab display device show the panoramic mosaic vedio data.
Preferably, the panoramic camera is 6, wherein at the top of 2 door legs for being installed on tyre crane, 4 are installed on cross In the middle part of beam;Angular field of view between adjacent two panoramic cameras has overlapping.
Preferably, the stockyard panoramic camera is 1080P high definition gun-type web cameras.
Preferably, the suspender contraposition video camera is 1080P high definition spherical shape web cameras.
Preferably, the drivers' cab video camera is the 1080P high-definition network cameras with 2.8mm wide-angle lens.
Preferably, described image data transmission device specifically includes:
First convergence switch aligns video camera with suspender and drivers' cab video camera is connected;
Power over Ethernet POE interchangers are connect with 6 panoramic cameras by cable;
Second convergence switch is connected with the Power over Ethernet POE interchangers, by the area video image data Carry out convergence processing;
Fiber optical transceiver, between connection and first convergence switch and second convergence switch;
Wireless transmitting-receiving equipments are respectively connected with first convergence switch, the second convergence switch, by the region Vedio data, contraposition image data and the driver monitoring image data are sent to image processing apparatus in real time.
It is further preferred that described image processing unit specifically includes:Wireless transmitting-receiving equipments, core switch and panorama are spelled Connect work station;
The wireless transmitting-receiving equipments receive the real-time contraposition image data Jing Guo convergence processing and the area video Image data, and the core switch is sent to by wireless network;
The core switch is connect with second wireless transmitting-receiving equipments by optical cable, by described in real time to bit image Data and the area video image data send panoramic mosaic work station to;
Panoramic mosaic work station is connected with the core switch, to by the described in real time to bitmap of convergence processing As data and the area video image data carry out splicing, generation panoramic mosaic vedio data.
Preferably, the drivers' cab display device specifically includes:Industrial personal computer and the first display;
The industrial personal computer is connected with described image data transmission device, receives the complete of the panoramic mosaic work station transmission Scape splices vedio data, carries out dissection process to the panoramic mosaic vedio data, and show by described first Device is shown.
It is further preferred that the drivers' cab display device further includes:Second display;
The second display, is connected with suspender contraposition video camera, is carried out in real time to bit image to the suspender Display.
The whole scene that the structure of the utility model embodiment offer is simple, easy to operate, safe and efficient, full-featured monitors System can provide intuitive video image for operating personnel, can improve productivity and also in operation process personnel, set The safety applied provides strong guarantee.Meanwhile monitoring system uses high-definition network camera as video acquisition source, both solves Certainly the problem of " that sees is wide ", " picture is continuous ", while the problem of also solve " that sees is clear ".
Description of the drawings
Fig. 1 is the structure chart for the tire crane operation whole scene monitoring system that the utility model embodiment provides;
Fig. 2 is the tire crane operation whole scene monitoring system image collecting device signal that the utility model embodiment provides Figure;
Fig. 3 is the tire crane operation whole scene monitoring system stockyard panoramic camera layout that the utility model embodiment provides Schematic diagram;
Fig. 4 is that the tire crane operation whole scene monitoring system monitor camera that the utility model embodiment provides supervises range And overlapping region schematic diagram.
Specific implementation mode
Below by drawings and examples, the technical solution of the utility model is described in further detail.
The utility model embodiment provides a kind of tire crane operation whole scene monitoring system, and Fig. 1 is that the utility model is real The structure chart that the tire crane operation whole scene monitoring system of example offer is provided, in conjunction with shown in Fig. 1, what the utility model embodiment provided Tire crane operation whole scene monitoring system includes:Image collecting device 1, image data transmitting device 2,3 and of image processing apparatus Drivers' cab display device 4.
Fig. 2 is the tire crane operation whole scene monitoring system image collecting device signal that the utility model embodiment provides Figure, in conjunction with shown in Fig. 2, image collecting device 1 includes:Stockyard panoramic camera 11, suspender contraposition video camera 12, drivers' cab camera shooting Machine 13;
Stockyard panoramic camera 11 includes more panoramic cameras, is respectively arranged at the door leg top and top of tyre crane 10 In the middle part of two crossbeams, the video image of 10 lower section of tyre crane and surrounding work area is acquired, it is multiple and different to generate monitoring The area video image data in orientation.
Stockyard panoramic camera 11 uses 1080P high definition gun-type web cameras, output image to have low-light (level), wide dynamic Function, salt spray proof and function of seismic resistance, water proof and dust proof ability meet IP67 degree of protection.
Suspender aligns video camera 12, is lifted below the trolley frame of tyre crane 10, and video is carried out to bit image to suspender Image Acquisition generates contraposition image data in real time;
Suspender contraposition video camera 12 has the function of cradle head control, and controlling video camera in drivers' cab by operation control system turns Dynamic and mobile realization panorama monitoring;Anamorphosis function controls the flexible of camera by operation control system in drivers' cab Realize zooming in or out for picture;The positioning of the lockhole of truck and suspender provides auxiliary video when can be to suspender loading and unloading container, To which driver can in real time confirm field condition;
Suspender aligns video camera 12 and uses 1080P high definition spherical shape web cameras, shock resistance is strong, hermetically sealed design, Water proof and dust proof ability meets IP67 degree of protection.
Drivers' cab video camera 13 is mounted on drivers' cab, carries out video image acquisition to the operation process of driver, generates driver Monitoring image data;
Consider that the special of drivers' cab space, drivers' cab video camera 13 are taken the photograph using the 1080P high-definition networks of 2.8mm wide-angle lens Camera meets European EN50155 standard authentications, connection plug using M12 aviation plugs.
Fig. 3 is the tire crane operation whole scene monitoring system stockyard panoramic camera layout that the utility model embodiment provides Schematic diagram, in conjunction with shown in Fig. 3, we are with 10m × 24m × 20m tyre cranes and separate unit camera field of view angle (horizontal field of view angle 100 °, 60 ° of vertical field of view angle) it is according to the optimum position that installation stockyard panoramic camera 11 is calculated;Specifically, in tire It hangs at the top of 10 4 door legs setting stockyard panoramic cameras 111 and 114 and is mutually diagonal state;Two, the top of tyre crane 10 Stockyard panoramic camera 112 and 113, stockyard panoramic camera 115 and 116 is respectively set in the middle part of crossbeam;Video camera in the middle part of crossbeam Not only can the vision dead zone of leg video camera on the door supplemented, but also can be comprehensive 10 lower section truck of supervision tyre crane, packaging The real-time condition of case realizes conduct monitoring at all levels of the stockyard panoramic camera 11 to 10 lower section of tyre crane and surrounding work area;By The principle of panoramic mosaic knows the overlapping that must have visual angle between adjacent two video cameras.
Fig. 4 is that the tire crane operation whole scene monitoring system stockyard panoramic camera that the utility model embodiment provides supervises Range and overlapping region schematic diagram, as shown in figure 4, the tire crane operation whole scene monitoring system that the utility model embodiment provides Panoramic camera supervises range and overlapping region includes:No. 1 supervision region, No. 4 supervision regions, No. 2 supervision regions, No. 3 supervisions Region, No. 5 supervision regions, No. 6 supervision regions;1, No. 5 overlapping regions, 1, No. 2 overlapping region, 2, No. 5 overlapping regions, 2, No. 3 Overlapping region, 2, No. 4 overlapping regions, 4, No. 5 overlapping regions, 5, No. 6 overlapping regions;Due to safety concerns supervise range it is more wide more It is good, stockyard panoramic camera 11 can be adjusted to different angles, to increase monitoring range.
In conjunction with Fig. 1, image data transmitting device 2 is connected with image collecting device 1, by area video image data, Contraposition image data and driver monitoring image data are sent to image processing apparatus 3 in real time;
Image data transmitting device 2 is specifically by including:Convergence switch, Power over Ethernet (POE) interchanger, optical fiber transceiving The communication equipment networking of device and wireless transmitting-receiving equipments is realized.
In a specific example, image data transmitting device 2 can specifically be realized as follows, including:
First convergence switch aligns video camera 12 with suspender and drivers' cab video camera 13 is connected by cable;POE is handed over It changes planes, is connected by cable with 6 stockyard panoramic cameras 11;Second convergence switch passes through cable phase with POE interchangers Area video image data is carried out convergence processing by connection;Fiber optical transceiver, by cable connection with the first convergence switch and Between second convergence switch;Wireless transmitting-receiving equipments are respectively connected with the first convergence switch, the second convergence switch, will Area video image data, contraposition image data and driver monitoring image data are sent to image processing apparatus 3 in real time.
In conjunction with Fig. 1, image processing apparatus 3 is connected with image data transmitting device 2, the real-time contraposition that will be received Image data and area video image data carry out splicing, generate panoramic mosaic vedio data, and pass through picture number It is back to drivers' cab according to transmitting device 2 and shows equipment 4;
Image processing apparatus 3 is specifically by including:The communication of wireless transmitting-receiving equipments, core switch and panoramic mosaic work station And image processing equipment networking is realized.
In a specific example, image processing apparatus 3 can specifically be realized as follows, including:
Wireless transmitting-receiving equipments receive the real-time contraposition image data and area video Jing Guo convergence processing by wireless network Image data is simultaneously sent to core switch;
Core switch is connected by optical cable with wireless transmitting-receiving equipments, will align image data and area video in real time Image data sends panoramic mosaic work station to;
Panoramic mosaic work station is connected with core switch by cable, to by the real-time to bitmap of convergence processing As data and area video image data carry out splicing, generation panoramic mosaic vedio data;
During panoramic mosaic, in conjunction with 3D modeling, tyre crane 10 and image data, surrounding scene is perfectly combined and is shown to User;User arbitrary chosen position can be monitored state confirmation in panoramic mosaic video image;It can be in unified time The image of the space roads Zhong Ge video flowing is checked on line at any time, supports mainstream network hard disk video recorder (Network Video Recorder, NVR) historical video streams access;Facilitate a wide range of scenario in driver ground in terms of the sky, virtual top view is provided Figure;
In conjunction with Fig. 1, drivers' cab display device 4 is connected with image data transmitting device 2, to panoramic mosaic video figure As data are shown;
Drivers' cab display device 4 is specifically by including:Industrial personal computer, the first display and second display, hard disk video recorder.
In a specific example, drivers' cab display device 4 can specifically be realized as follows, including:
Industrial personal computer is connected with image data transmitting device 2 by cable, and the panorama that panoramic mosaic work station is sent is received Splice vedio data, dissection process is carried out to panoramic mosaic vedio data, and show by the first display;
First display shows panoramic mosaic video image;
Hard disk video recorder is connected with image data transmitting device 2 by cable, and reception includes the real-time to bitmap of suspender As data, tyre crane area video image data, panoramic mosaic vedio data, driver monitoring image data are stored, Prevent loss of data;
Second display is connected with hard disk video recorder, shows the real-time to bit image or area video image of suspender.
Panorama is carried out to tyre crane monitoring operation picture using the tire crane operation whole scene monitoring system of the utility model The step of splicing, is as follows.
First, stockyard panoramic camera 11 carries out Image Acquisition to 10 lower section of tyre crane and surrounding, and image capture position is No. 1 supervision region of tyre crane operation field, No. 4 supervision regions, No. 2 supervision regions, No. 5 supervision regions, No. 3 supervision regions, No. 6 Supervise region.
Second, according to panoramic mosaic principle, tyre crane operation field, which supervises area image, to intersect two-by-two;In conjunction with Fig. 4, divide There are not 1,5 overlay regions, 1,2 overlay regions, 5,6 overlay regions, 2,5 overlay regions, 2,3 overlay regions, 4,5 overlay regions, 2,4 overlay regions;Tool Body, an apparent characteristic point is chosen in 4,5 overlapping regions supervised at No. 4 in image, then intersects with No. 4 supervision images No. 5 supervise images on find the same position characteristic point complete one group of characteristic point calibration, No. 4 with No. 5 supervision images Intersect and chooses several groups characteristic point in image;Image is supervised to remaining position after the same method and carries out characteristic point calibration.
Third, the interpolation for completing to use stitching algorithm to calculate the projection model of each image stitching image after calibration map Table.
4th, stitching image data have been eventually formed into row interpolation, correction process to image according to interpolation mapping table.
5th, panoramic mosaic vedio data returns to industrial personal computer by image data transmitting device, uses industrial personal computer On software dissection process after, driver is shown to by the first display.
The tire crane operation whole scene monitoring system that the utility model embodiment provides, is using picture splicing technology as base Plinth, by, at a width picture, providing intuitive video image for operating personnel, solution is commonly taken the photograph to multiple scene monitoring picture splicing Picture incoherent problem when camera Multi-azimuth monitoring meets the demand of user's " see extensively, see much, is readable ", can subtract The injures and deaths of few personnel, the security monitoring for the generation for avoiding accident, improving production efficiency, realizing operation process.
Above-described specific implementation mode, to the purpose of this utility model, technical solution and advantageous effect carried out into One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit Determine the scope of protection of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced It changes, improve, should be included within the scope of protection of this utility model.

Claims (9)

1. a kind of tire crane operation whole scene monitoring system, which is characterized in that the monitoring system includes:Image collecting device, Image data transmitting device, image processing apparatus and drivers' cab display device;
Described image harvester includes:Stockyard panoramic camera, suspender contraposition video camera, drivers' cab video camera;
The stockyard panoramic camera includes more panoramic cameras, and the more panoramic cameras are respectively arranged at tyre crane At the top of door leg and in the middle part of crossbeam, the video image of below tyre crane and surrounding work area is acquired, it is multiple to generate monitoring The area video image data of different direction;
The suspender aligns video camera, is set to below the trolley frame of tyre crane, and video image is carried out to bit image to suspender Acquisition generates contraposition image data in real time;
The drivers' cab video camera is mounted on drivers' cab, carries out video image acquisition to the operation process of driver, generates driver's prison Control image data;
Image data transmitting device is connected with described image harvester, by the area video image data, in real time contraposition Image data and the driver monitoring image data are sent to image processing apparatus;
Image processing apparatus is connected with described image data transmission device, the real-time contraposition image data that will be received Splicing is carried out with the area video image data, generates panoramic mosaic vedio data, and pass through described image number It is back to the drivers' cab display device according to transmitting device;
Drivers' cab display device, the drivers' cab display device show the panoramic mosaic vedio data.
2. monitoring system according to claim 1, which is characterized in that the panoramic camera is 6, wherein 2 installations At the top of the door leg of tyre crane, 4 are installed in the middle part of crossbeam;Angular field of view between adjacent two panoramic cameras has weight It is folded.
3. monitoring system according to claim 1, which is characterized in that the stockyard panoramic camera is 1080P high definition rifles Formula web camera.
4. monitoring system according to claim 1, which is characterized in that the suspender contraposition video camera is 1080P high definition balls L network video camera.
5. monitoring system according to claim 1, which is characterized in that the drivers' cab video camera is with 2.8mm wide-angles The 1080P high-definition network cameras of camera lens.
6. monitoring system according to claim 2, which is characterized in that described image data transmission device specifically includes:
First convergence switch aligns video camera with the suspender and the drivers' cab video camera is connected;
Power over Ethernet POE interchangers are connected with 6 panoramic cameras by cable;
Second convergence switch is connected with the Power over Ethernet POE interchangers, and the area video image data is carried out Convergence processing;
Fiber optical transceiver, between connection and first convergence switch and second convergence switch;
Wireless transmitting-receiving equipments are respectively connected with first convergence switch, the second convergence switch, by the area video Image data, contraposition image data and the driver monitoring image data are sent to image processing apparatus in real time.
7. monitoring system according to claim 6, which is characterized in that described image processing unit specifically includes:It is wireless to receive Send out equipment, core switch and panoramic mosaic work station;
The wireless transmitting-receiving equipments receive the real-time contraposition image data Jing Guo convergence processing and the area video image Data, and the core switch is sent to by wireless network;
The core switch is connect with the wireless transmitting-receiving equipments by optical cable, by the real-time contraposition image data and institute It states area video image data and sends panoramic mosaic work station to;
Panoramic mosaic work station is connected with the core switch, to the real-time contraposition picture number Jing Guo convergence processing Splicing is carried out according to the area video image data, generates panoramic mosaic vedio data.
8. monitoring system according to claim 1, which is characterized in that the drivers' cab display device specifically includes:Industry control Machine and the first display;
The industrial personal computer is connected with described image data transmission device, receives the panorama that the panoramic mosaic work station is sent and spells Vedio data is connect, dissection process is carried out to the panoramic mosaic vedio data, and aobvious by first display Show.
9. monitoring system according to claim 8, which is characterized in that the drivers' cab display device further includes:Second is aobvious Show device;
The second display is connected with suspender contraposition video camera, is shown in real time to bit image to the suspender.
CN201820060125.7U 2018-01-15 2018-01-15 Tire crane operation whole scene monitoring system Active CN207835652U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820060125.7U CN207835652U (en) 2018-01-15 2018-01-15 Tire crane operation whole scene monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820060125.7U CN207835652U (en) 2018-01-15 2018-01-15 Tire crane operation whole scene monitoring system

Publications (1)

Publication Number Publication Date
CN207835652U true CN207835652U (en) 2018-09-07

Family

ID=63392988

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820060125.7U Active CN207835652U (en) 2018-01-15 2018-01-15 Tire crane operation whole scene monitoring system

Country Status (1)

Country Link
CN (1) CN207835652U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109905605A (en) * 2019-04-02 2019-06-18 唐山港集团股份有限公司 Four video cameras of one kind are automatically with burnt monitoring method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109905605A (en) * 2019-04-02 2019-06-18 唐山港集团股份有限公司 Four video cameras of one kind are automatically with burnt monitoring method

Similar Documents

Publication Publication Date Title
CN103149893B (en) Motor-driven self-organization situation monitoring system
CN103916632B (en) Real-time panorama video remote monitoring system for runway
CN203870474U (en) Automatic navigation patrol robot for visual monitoring
CN102348102A (en) Roof safety monitoring system and method thereof
CN103051874B (en) Real-time high-definition video monitoring and evidence obtaining system for low-enforcement vessel
CN207835652U (en) Tire crane operation whole scene monitoring system
CN104539879A (en) Patrol device for infrared probe in remote control zone of unattended substation
CN116177396A (en) Tower crane monitoring system, method and tower crane
CN112153267A (en) Human eye visual angle limitation space operation remote monitoring system based on AR intelligent glasses
CN206212054U (en) The marine automatic banishing device of Offending Ship
CN106621139A (en) 3D camera-based intelligent fire truck
CN106686354A (en) Drone patrol measuring system and measuring method thereof
CN204707203U (en) The wireless cloud monitoring system in a kind of multiplex (MUX) ground
CN205490871U (en) Remote wireless image transmission system of wireless remote control obstacles removing car
CN114205560A (en) Patrol tracking device and method for microwave denial system
CN204145656U (en) Coal mine fully-mechanized mining working moving video image is with crane monitoring system
CN210558949U (en) Lifting hook visualization system based on wireless digital transmission
CN212466888U (en) Directional intelligent fire extinguishing system for high-speed rail motor train unit
CN204836422U (en) Visual monitoring device of transformer substation
JP2005239357A (en) Monitoring system for harbor, yard crane, and harbor monitoring method
CN107181935A (en) Outstanding rail robot inspection device and system
CN113645460A (en) Engineering mechanical equipment remote control system
CN110844786A (en) Video auxiliary system and method for tower crane driver
CN209897184U (en) A accurate monitoring system for overhead working construction quality of overhead transmission line
CN206471917U (en) A kind of intelligent substation inspection device based on mesh networks

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant