CN208284101U - A kind of range-measurement system of taking photo by plane for ship berthing management - Google Patents

A kind of range-measurement system of taking photo by plane for ship berthing management Download PDF

Info

Publication number
CN208284101U
CN208284101U CN201820289604.6U CN201820289604U CN208284101U CN 208284101 U CN208284101 U CN 208284101U CN 201820289604 U CN201820289604 U CN 201820289604U CN 208284101 U CN208284101 U CN 208284101U
Authority
CN
China
Prior art keywords
picture
module
ship
plane
image
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.)
Expired - Fee Related
Application number
CN201820289604.6U
Other languages
Chinese (zh)
Inventor
诸伟
黄锐
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 Beiqing General Aviation Co Ltd
Original Assignee
Shanghai Beiqing General Aviation Co 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 Beiqing General Aviation Co Ltd filed Critical Shanghai Beiqing General Aviation Co Ltd
Priority to CN201820289604.6U priority Critical patent/CN208284101U/en
Application granted granted Critical
Publication of CN208284101U publication Critical patent/CN208284101U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of range-measurement systems of taking photo by plane for ship berthing management comprising unmanned plane, image acquisition device, hang down high inductor, information transmission modular, ground control terminal and monitor terminal.Range-measurement system of taking photo by plane provided by the utility model for ship berthing management, stop in measurement process investigating and prosecuting ship berthing and disobeying, the image that image acquisition device acquires reach port ship and harbour is carried by unmanned plane, and high data of hanging down in real time are fed back by the high inductor that hangs down, it carries out through monitor terminal apart from calculating, so that the measurement in ship berthing enforcing law is more accurate;Unmanned plane once flies around harbour, so that it may which the measurement data for completing entire harbour is collected, more efficient;By adjusting the flying height of unmanned plane when taking photo by plane, it is no longer influenced by the influence in place and hull size so that taking pictures, evidence obtaining is easy.

Description

A kind of range-measurement system of taking photo by plane for ship berthing management
Technical field
The utility model relates to field of measuring technique of taking photo by plane, and in particular to a kind of ranging of taking photo by plane for ship berthing management System.
Background technique
Ship berthing refers to ship landing pier, and ship berthing needs are carried out according to administrative provisions, to facilitate law enfrocement official couple The ship of berthing is managed.
As road traffic, there is also acts of violating regulations for ship berthing.Between the particular surroundings of ship berthing, law enfrocement official When investigating and prosecuting berthing and breaking rules and regulations, there are bigger difficulty.Routine law enforcement means are that law enfrocement official measures every ship bracing wire, to sentence Whether the positional distance harbour that ship of stopping navigation is stopped is more than safe-guard line, if violation berthing, the measurement data of the method Error is big, and bracing wire measurement need to expend a large amount of manpowers and time, could complete the measurement of ship, working efficiency is low.In addition, by In the volume of ship it is larger and be limited to shooting place condition, prevent take pictures to ship violating the regulations when collecting evidence from fine Be shown in a photo, law enforcement evidence obtaining difficulty is big, is unfavorable for subsequent law enforcement processing and is provided with effect foundation.
Utility model content
The purpose of this utility model is to provide a kind of range-measurement systems of taking photo by plane for ship berthing management, to solve ship The problem that measurement error present in oceangoing ship berthing enforcing law is big, low efficiency and evidence obtaining are difficult.
To achieve the above object, the utility model provides a kind of range-measurement system of taking photo by plane for ship berthing management, packet Include unmanned plane, image acquisition device, hang down high inductor, information transmission modular, ground control terminal and monitor terminal, wherein
Described image collector is installed on the uav bottom, and described image collector is used to carry out the ship of stop Shooting forms video image;
The high inductor that hangs down is installed on described image collector, it is described hang down high inductor for measure image acquisition device away from The vertical height of the water surface;
The information transmission modular is installed on the unmanned plane, the information transmission modular and the high sensor data of hanging down Connection, and the information transmission modular and described image collector data connection, the information transmission modular with wireless signal to Surface orientation transmits the video image of the vertical high and described image collector acquisition of the high sensor measurement that hangs down;
The ground control terminal and the unmanned plane are wirelessly connected, and the ground control terminal is for controlling the unmanned plane Flight position and the height that hangs down, the ground control terminal and the information transmission modular are wirelessly connected, and the ground control terminal is for connecing The wireless signal issued by the information transmission modular;
The monitor terminal includes display screen, video image calling module, horizontal distance computing module and picture and text evidence system Make module, the video image calling module, the horizontal distance computing module and picture and text evidence production module respectively with The ground control terminal is connected with the screen data, and the video image calling module is for calling image, the level Distance calculation module and the video image calling module data connection, the horizontal distance computing module is for calculating image side Boundary's overall length and the distance between ship and harbour, picture and text evidence production module and the video image calling module and described Horizontal distance computing module distinguishes data connection, when the picture and text evidence production module is for making containing shooting image, shooting Between, shooting hangs down high and horizontal distance calculated result picture.
Preferably, the high inductor that hangs down is infrared range-measurement system or GPS altimeter.
Preferably, the radio signal frequency of the information transmission modular transmitting is 5.8GHz.
Preferably, the monitor terminal further includes picture and text evidence preserving module, the picture and text evidence preserving module with it is described Picture and text evidence makes module data connection, and the picture and text evidence preserving module is for saving the picture and text evidence production module making Picture.
Preferably, the format of the picture of the picture and text evidence production module making is jpg or bmp format.
The utility model has the advantages that
A kind of range-measurement system of taking photo by plane for ship berthing management provided by the utility model, carries image by unmanned plane Collector acquisition is reached port the image at ship and harbour, and is hung down in real time high data by high inductor feedback of hanging down, through monitor terminal into Row distance calculates, so that the measurement in ship berthing enforcing law is more accurate;Unmanned plane once flies around harbour, so that it may complete The measurement data at entire harbour is collected, more efficient;By adjusting the flying height of unmanned plane when taking photo by plane so that take pictures no longer by To the influence of place and hull size, evidence obtaining is easy.
Detailed description of the invention
Fig. 1 is the structure chart for the range-measurement system of taking photo by plane for ship berthing management that embodiment 1 provides.
Fig. 2 be embodiment 1-3 provide based on the horizontal distance of take photo by plane range-measurement system and the method for ship berthing management The schematic diagram of calculation.
Fig. 3 is the flow chart for the distance measuring method of taking photo by plane for ship berthing management that embodiment 2 provides.
Fig. 4 is the flow chart for the distance measuring method of taking photo by plane for ship berthing management that embodiment 3 provides.
In figure: 1- unmanned plane, 2- image acquisition device, 3- hang down high inductor, 4- information transmission modular, 5- ground control terminal, 6- monitor terminal, 61- display screen, 62- video image calling module, 63- horizontal distance computing module, the production of 64- picture and text evidence Module, 65- picture and text evidence preserving module, 7- monitoring interface scale line.
Specific embodiment
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment 1
As illustrated in fig. 1 and 2, embodiment 1 provides a kind of range-measurement system of taking photo by plane for ship berthing management, which uses In but be not limited to law enfrocement official investigate and prosecute ship berthing harbour act of violating regulations, apply also for coast defence monitoring, fuel leakage, city hand over The fields such as logical safety management, military monitoring, marine protection.The system include unmanned plane 1, image acquisition device 2, the high inductor 3 that hangs down, Information transmission modular 4, ground control terminal 5 and monitor terminal 6.
Image acquisition device 2 is installed on the bottom of unmanned plane 1, and image acquisition device 2 is for carrying out shooting shape to the ship of stop At video image, in use, according to regional environment requirement of taking photo by plane, 1 height of adjustment unmanned plane is bowed using image acquisition device 2 It claps, the state of harbour and ship in real-time monitoring field angle α;The high inductor 3 that hangs down is installed on image acquisition device 2, and hang down high inductor 3 For measuring vertical height of the image acquisition device away from the water surface;Information transmission modular 4 is installed on unmanned plane 1, information transmission modular 4 and the height that hangs down 3 data connection of inductor, and information transmission modular 4 and 2 data connection of image acquisition device, information transmission modular 4 is with wireless signal Directional transmissions are hung down the video image that the vertical high and image acquisition device 2 that high inductor 3 measures acquires to the ground;Ground control terminal 5 with Unmanned plane 1 is wirelessly connected, and ground control terminal 5 is used to control the flight position of unmanned plane 1 and hang down height, ground control terminal 5 and information Transmission module 4 is wirelessly connected, and ground control terminal 5 is used to receive the wireless signal of the sending of information transmission modular 4.Utilize unmanned plane 1 It takes photo by plane, can disposably shoot the ship of more stops, the location information that every ship is stopped can obtain, and save manpower And the time.By information transmission modular 4, by information such as each vessel position, sizes in 2 field angle α of image acquisition device and hang down The real-time height that hangs down that high inductor 3 measures is back to ground control terminal 5, so as to later period calling, inquiry.
Monitor terminal 6 includes display screen 61, video image calling module 62, horizontal distance computing module 63 and picture and text evidence Make module 64, video image calling module 62, horizontal distance computing module 63 and picture and text evidence production module 64 respectively with ground 61 data connection of face control terminal 5 and display screen, video image calling module 62 is for calling image, horizontal distance computing module 63 With 62 data connection of video image calling module, horizontal distance computing module 63 calculates ship for calculating image boundary overall length Offshore distance between oceangoing ship and harbour, the offshore distance can be ship farthest off shore distance or ship offshore most low coverage From.When using the system, as illustrated in fig. 1 and 2, the video figure that video image calling module 62 calls ground control terminal 5 to receive Picture and high information of hanging down, and it is shown in display screen 61;The vertical high and visual field angular data of input, (should by horizontal distance computing module 63 The calculation procedure of module utilizes sine and cosine theorem) calculate image boundary overall length within the scope of field angle α;It is shown on display screen 61 (monitoring interface scale line 7 has two to monitoring interface scale line 7, belongs to horizontal distance computing module 63, is only shown in display screen 61), drag monitoring interface scale line 7, make wherein a near point to pull in shore with ship or far point be overlapped, another monitoring interface mark Ruler line 7 is overlapped with harbour water front, according to the ratio of image boundary overall length shared by the distance between two monitoring interface scale lines 7, The offshore distance X of tested ship is calculated;The top view taken photo by plane using unmanned plane 1, no matter ship volume, height are more It is few, image area size (an equivalent plane) only is occupied in video, offshore distance X can directly be calculated on the diagram, Work efficiency is high, measurement result is accurate.
Picture and text evidence makes module 64 and video image calling module 62 and horizontal distance computing module 63 is distinguished data and connected It connects, picture and text evidence makes module 64 and is used to make containing shooting image, shooting time, the vertical high and horizontal distance calculated result of shooting Picture.Picture and text evidence makes the picture that module 64 makes, and the information such as shooting image, ship offshore distance are blended, can be mentioned For more convictive foundation, law enforcement is made to have card can be according to.
In the present embodiment, the high inductor 3 that hangs down is infrared range-measurement system or GPS altimeter, so that the vertical height of measurement is more quasi- Really, it avoids influencing calculated result.
In the present embodiment, the radio signal frequency that information transmission modular 4 emits is 5.8GHz, and law enfrocement official can be in phase Farther away place operates unmanned plane, completes law enforcement.
In the present embodiment, monitor terminal 6 further includes picture and text evidence preserving module 65, picture and text evidence preserving module 65 and figure Literary evidence makes 64 data connection of module, and picture and text evidence preserving module 65 is used to save the figure that picture and text evidence production module 64 makes Piece is convenient for historical query.
In the present embodiment, the evidence picture and picture and text evidence preserving module 65 that picture and text evidence production module 64 makes are protected The evidence picture format deposited is jpg or bmp format, this format is conveniently checked.
In the present embodiment, picture and text evidence preserving module 65 and 5 data connection of ground control terminal, and save ground with avi format The received video image of face control terminal 5.
Embodiment 2
A kind of distance measuring method of taking photo by plane for ship berthing management that embodiment 2 provides, this method is for but not limited to holding Legal person person investigate and prosecute ship berthing harbour act of violating regulations, apply also for coast defence monitoring, fuel leakage, urban traffic safety management, The fields such as military monitoring, marine protection.This method is based on the range-measurement system of taking photo by plane for ship-handling, in conjunction with refering to such as Fig. 1, figure Shown in 2 and Fig. 3 comprising following steps:
Step S1, ground control terminal 5 control the flight of unmanned plane 1 to ship berthing region overhead and adjust flying for unmanned plane 1 Row height.
Step S2 is installed on carry out real time video image bat of the image acquisition device 2 of 1 bottom of unmanned plane to harbour and ship It takes the photograph, and by the data transmission of real time video image to the information transmission modular 4 for being installed on unmanned plane 1;Meanwhile it being installed on image and adopting The high inductor 3 that hangs down of storage 2 carries out the high measurement that hangs down, and by the high data transmission of hanging down in real time of measurement to information transmission modular 4.Due to The volume of ship is not of uniform size, and is limited to the condition of law enforcement field, so that becoming tired to the ship violating the regulations evidence obtaining that take pictures Difficulty is taken photo by plane using unmanned plane 1, can effectively be shot harbour, different location ship and harbour surrounding scene and be recorded, real When monitoring field angle α in ship state, with fast and flexible, mobility is strong, characteristic of high reliablity, reach quickly law enforcement, It collects evidence believable effect.Change the flying height of unmanned plane 1, can flexible choice need the more of the ship covered in monitoring image sum It is few, can disposably shoot the ships of more stops, the location information that every ship is stopped can obtain, effectively reduce it is artificial and Time cost, to overcome evidence obtaining according to insufficient defect, in addition, unmanned plane 1 is adapted to the severe rings such as high wind, strong rain Border can be carried out law enforcement at any time.
Step S3, information transmission modular 4 hang down high data by real time video image and in real time respectively in the form of wireless signal It is transferred to ground control terminal 5.
By information transmission modular 4, the real-time height that hangs down of the video image of shooting, measurement is back to ground control terminal 5, it can It observes the information such as each object space, size under high angle shot visual angle, and can be carried out image data preservation, be convenient for historical query.
Step S4, the ground control terminal receive dotted line signal;
Step S5 hangs down high data in the form of data connection by the received real time video image of ground control terminal 5 and in real time It is transferred to monitor terminal 6, monitor terminal 6 carries out video image calling, horizontal distance calculates and the production of picture and text evidence, wherein view Frequency image call is to call video image by video image calling module 62 and be shown in display screen 61;Horizontal distance calculates It is to calculate the offshore distance X of ship by carrying out electronic surveying calculating to high angle shot video image, it is quasi- can effectively to improve measurement Exactness improves efficiency.It includes following substeps that horizontal distance, which calculates, firstly, the vertical high and image that the high inductor 3 that hangs down is measured is adopted The angle input level distance calculation module 63 of the field angle α of storage 2;Secondly, horizontal distance computing module 63 calculates image view Boundary always away from, in this step, as shown in Fig. 2, according to Chui Gao and field angle, using the cosine law calculate image perspectives always away from. In Fig. 2, AC is that image perspectives always hang down away from, it is known that the field angle α of image acquisition device 2 and in real time in 2 field angle α of image acquisition device High H, then L=tan α × H, | AC |=2 × L;Finally, accounting for the ratio of image perspectives, water using the length between ship and harbour Flat distance calculation module Ship ' between harbour at a distance from.As shown in Fig. 2, X indicate dock vessels outermost or most inner side with The distance of wharf edge, occupies according to X | AB | ratio, can obtain dock vessels at a distance from harbour, i.e., the offshore of ship away from From X, and judge whether stop violating the regulations.
Step S6, picture and text evidence are made by picture and text evidence production module 64 and will shoot image, shooting time, and shoot and hang down Process on the elements combinations a to picture such as high and horizontal distance calculated result, the process can be used but be not limited to screenshotss operation It is achieved.Step S43 provides convictive foundation for law enforcement, and law enforcement is made to have card can be according to.
Distance measuring method of taking photo by plane provided in this embodiment for ship berthing management can greatly improve law enforcement efficiency, reduce Human and material resources cost, and measurement error can be reduced by algorithm.
In the present embodiment, step S5 video image calling module calls video image by OpenCv function library.
In the present embodiment, Ship ' in step S5 between harbour at a distance from, apply dual-cache mechanism, regarded in image Two monitoring interface scale lines 7 are drawn on the upper layer on boundary, drag the outermost of monitoring interface scale line 7 to required measurement ship respectively With corresponding wharf edge, the ratio of image boundary overall length is occupied by calculating two monitoring interface scale lines 7, obtains two monitoring The distance between interface scale line 7 is the distance between dock vessels and harbour, i.e. offshore distance, as shown in Fig. 2, two monitoring The distance between interface scale line 7 X is the offshore distance of ship.
Embodiment 3
As shown in Figure 1, Figure 2 and Figure 4, the another kind that embodiment 3 provides is used for the distance measuring method of taking photo by plane of ship berthing management, It is improved by embodiment 2, method and 1 fundamental form of embodiment are same, and only improvement part is described below.
In the present embodiment, if in step S5, the distance between dock vessels and harbour (offshore distance X) are more than ship Security alert distance in pool regulation then executes the step the production of S6 picture and text evidence;If offshore distance X is less than ship berthing rule Security alert distance in fixed then makes (being not processed) without picture and text evidence.
In the present embodiment, distance measuring method of taking photo by plane for ship berthing management further includes that step S7 picture and text evidence saves, It is that the picture and text evidence to complete in picture and text evidence production module 64 is stored in picture and text evidence to save mould that picture and text evidence, which saves, Block 65.
In the present embodiment, step S5 picture and text evidence is with the preservation of jpg or bmp format.
In the present embodiment, the preservation of step S5 picture and text evidence can also be saved video recording, and save video with avi format Image.
Although above having made detailed description to the utility model with generality explanation and specific embodiment, On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art 's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want Seek the range of protection.

Claims (5)

1. a kind of range-measurement system of taking photo by plane for ship berthing management, it is characterised in that: the boat for ship berthing management Bat range-measurement system includes unmanned plane, image acquisition device, hang down high inductor, information transmission modular, ground control terminal and monitor terminal, Wherein,
Described image collector is installed on the uav bottom, and described image collector is for shooting the ship of stop Form video image;
The high inductor that hangs down is installed on described image collector, and the high inductor that hangs down is for measuring image acquisition device away from the water surface Vertical height;
The information transmission modular is installed on the unmanned plane, and the information transmission modular and the high sensor data of hanging down connect It connects, and the information transmission modular and described image collector data connection, the information transmission modular is with wireless signal to ground The video image that the vertical high and described image collector of high sensor measurement that hangs down described in the directional transmissions of face acquires;
The ground control terminal and the unmanned plane are wirelessly connected, and the ground control terminal is used to control the flight of the unmanned plane Position and the height that hangs down, the ground control terminal and the information transmission modular are wirelessly connected, and the ground control terminal is for receiving institute State the wireless signal of information transmission modular sending;
The monitor terminal includes display screen, video image calling module, horizontal distance computing module and picture and text evidence production mould Block, the video image calling module, the horizontal distance computing module and the picture and text evidence production module respectively with it is described Ground control terminal is connected with the screen data, and the video image calling module is for calling image, the horizontal distance Computing module and the video image calling module data connection, the horizontal distance computing module are total for calculating image boundary Long and the distance between ship and harbour, the picture and text evidence production module and the video image calling module and the level Distance calculation module distinguishes data connection, and the picture and text evidence production module is for making containing shooting image, shooting time, bat Take the photograph the picture of Chui Gao and horizontal distance calculated result.
2. the range-measurement system of taking photo by plane according to claim 1 for ship berthing management, it is characterised in that: the vertical high sense Answering device is infrared range-measurement system or GPS altimeter.
3. the range-measurement system of taking photo by plane according to claim 1 for ship berthing management, it is characterised in that: the information passes The radio signal frequency of defeated module transmitting is 5.8GHz.
4. the range-measurement system of taking photo by plane according to claim 1 for ship berthing management, it is characterised in that: the monitoring is eventually End further includes picture and text evidence preserving module, and the picture and text evidence preserving module is connect with picture and text evidence production module data, The picture and text evidence preserving module is used to save the picture of the picture and text evidence production module making.
5. the range-measurement system of taking photo by plane according to claim 4 for ship berthing management, it is characterised in that: the picture and text card Format according to the picture of production module making is jpg or bmp format.
CN201820289604.6U 2018-03-01 2018-03-01 A kind of range-measurement system of taking photo by plane for ship berthing management Expired - Fee Related CN208284101U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820289604.6U CN208284101U (en) 2018-03-01 2018-03-01 A kind of range-measurement system of taking photo by plane for ship berthing management

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820289604.6U CN208284101U (en) 2018-03-01 2018-03-01 A kind of range-measurement system of taking photo by plane for ship berthing management

Publications (1)

Publication Number Publication Date
CN208284101U true CN208284101U (en) 2018-12-25

Family

ID=64748752

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820289604.6U Expired - Fee Related CN208284101U (en) 2018-03-01 2018-03-01 A kind of range-measurement system of taking photo by plane for ship berthing management

Country Status (1)

Country Link
CN (1) CN208284101U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108470470A (en) * 2018-03-01 2018-08-31 上海北清通用航空有限公司 A kind of take photo by plane range-measurement system and method for ship berthing management
CN113534811A (en) * 2021-07-28 2021-10-22 上海海事大学 Unmanned aerial vehicle-based ship berthing system and method
CN114371721A (en) * 2020-10-15 2022-04-19 沃尔沃遍达公司 Unmanned aerial vehicle system, marine vessel control system, and method for controlling marine vessel navigation system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108470470A (en) * 2018-03-01 2018-08-31 上海北清通用航空有限公司 A kind of take photo by plane range-measurement system and method for ship berthing management
CN114371721A (en) * 2020-10-15 2022-04-19 沃尔沃遍达公司 Unmanned aerial vehicle system, marine vessel control system, and method for controlling marine vessel navigation system
CN113534811A (en) * 2021-07-28 2021-10-22 上海海事大学 Unmanned aerial vehicle-based ship berthing system and method

Similar Documents

Publication Publication Date Title
CN208284101U (en) A kind of range-measurement system of taking photo by plane for ship berthing management
CN108470470A (en) A kind of take photo by plane range-measurement system and method for ship berthing management
CN108922247B (en) Ship-navigation mark collision risk degree estimation method based on AIS
KR101866239B1 (en) Method for Monitoring Water Quality Environment Using Drone
CN102730166B (en) Automatic draught monitoring system and method for river vessels
CN107316012B (en) Fire detection and tracking method of small unmanned helicopter
CN103901806B (en) Intelligent ship berthing assistance system and method
KR101896000B1 (en) A System Preventing Plundering Fishing Gear Installed On The Sea
CN105204411B (en) A kind of ship berthing auxiliary system and method based on binocular stereo vision
CN106534811A (en) Unmanned aerial vehicle monitoring system for monitoring floating objects in water
CN107203222A (en) The method that unmanned plane realizes shipping depth gauge image and video capture
CN104010167B (en) Real-time virtual ship video displaying method for AIS data
CN107888879A (en) Coastline monitors and unattended cloud system and application method
CN110097787A (en) A kind of ship collision warning monitoring system and method based on monitoring navigation light
CN207241978U (en) A kind of sea collision prevention device
CN206627156U (en) A kind of ship spill monitoring system
KR20140099386A (en) Mobile terminal and electronic navigational chart server and method for updating electronic navigational chart based on crowdsourcing thereof
CN107369283B (en) A kind of ocean anchor system buoy early warning system and method based on image recognition
CN106384541B (en) A method of volume of traffic monitoring in navigation channel is carried out based on laser source point cloud data
CN206313928U (en) A kind of monitoring unmanned system for the monitoring of waters floating object
CN109835441A (en) The automatic Pilot method and its system of water quality monitoring intelligence canoe
CN105118331A (en) Navigation safety information sharing device and receiving and transmission method
CN103198718A (en) Remote ship draft monitoring system
CN206726270U (en) A kind of harmful influence logistics security guard system based on the Big Dipper and Internet of Things
CN209118512U (en) A kind of bridge-collision-avoidance prior-warning device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20181225

CF01 Termination of patent right due to non-payment of annual fee