CN104677861A - Ship control device based on gas analysis - Google Patents
Ship control device based on gas analysis Download PDFInfo
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Abstract
The invention relates to a ship control device based on gas analysis. The ship control device comprises a scattering type visibility viewer, ship speed measuring equipment, ship driving equipment and main control equipment, wherein the main control equipment is connected with the scattering type visibility viewer, the ship speed measuring equipment and the ship driving equipment. The maximum allowable travel speed of ships is determined according to the visibility output by the scattering type visibility viewer; based on the maximum allowable travel speed of ships and the current ship travel speed output by the ship speed measuring equipment, the ship travel speed is controlled through the ship driving equipment. The ship control device can automatically limit the travel speed of the ships by checking the visibility of air around the ship, and can also prompt a navigator to open the window or close the window by comparing the PM2.5 concentrations of inside air and outside air of a ship control room, therefore ensuring the safety travel of the ships and the personal health of people on the ships.
Description
The divisional application that the present invention is application number is 2014103623004, the applying date is on July 28th, 2014, denomination of invention is the patent of " ship control device based on gas analysis ".
Technical field
The present invention relates to ship control field, particularly relate to a kind of ship control device based on gas analysis.
Background technology
Boats and ships, i.e. boats and ships are the general names of various ship.Boats and ships can navigate by water or berth to carry out in waters transporting or the vehicles of operation, and having different technical features, equipment and structural shape by different request for utilizations, is a kind of man made transportation tools mainly run in geographical water.In addition, inercant ships are commonly referred to as ship, and naval ship is called warship, and small boat is called ship or boat, and it is generically and collectively referred to as naval vessel or ships and light boats.Internal main will comprise spatial accommodation, supporting construction and discharge structure, has and utilizes external or carry the propulsion system of the energy.External form is generally be beneficial to the cleanliness envelope overcoming fluid resistance, and material is constantly updated along with scientific-technical progress, is the nature materials such as wood, bamboo, fiber crops in early days, is mostly steel and aluminium, glass fibre, acrylic and various compound substance modern age.
Since ancient times, the effect of boats and ships is mainly reflected in transport and two aspects of fighting.In transport, boats and ships are divided into passenger and freight two kinds of patterns.No matter for which aspect, the cost of boats and ships is all a no small number, if collided or other accidents, due to the singularity of water surface traffic and the limitation of water surface maintenance activity, maintenance and maintenance cost high equally.Therefore, what avoid accident is one of main task of ship running, especially when visibility is lower, need the travel speed reducing boats and ships, go to provide more reaction time to observe water surface situation, realize evading of waterborne target under water, the position, pulpit of some boats and ships is lower simultaneously, need ventilate in time according to the air conditions of pulpit or close window, for driver provides a good driving environment.There is the ship control scheme of some early warning in prior art, but do not carry out ship control based on gas detect.
Therefore, need a kind of ship control device based on gas analysis, overcome cannot adjusting the speed of a ship or plane in time according to state of visibility and the technical matters of Ventilation Control cannot be carried out according to pulpit gas station of spot ship control system, by detecting the visibility of air near boats and ships in real time, boats and ships maximum permission travel speed is set and carries out the automatic control of the speed of a ship or plane, Ventilation Strategies is determined additionally by the analysis of PM2.5 concentration inside and outside pulpit, avoid the generation of ship accident, ensure that the physical and mental health of human pilot is injury-free.
Summary of the invention
In order to solve the problem, the invention provides a kind of ship control device based on gas analysis, by introducing diffuse transmission type visibility visualizer, available strategy is carried out to the visibility of ship running environment, and then automatically control the travel speed of boats and ships, the contrast of the air ambient of ship control indoor and outdoor is realized by introducing indoor PM2.5 checkout equipment and outdoor PM2.5 checkout equipment simultaneously, for the ventilation of driver provides important references, improve the automaticity that ship running controls.
According to an aspect of the present invention, provide a kind of ship control device based on gas analysis, described ship control device comprises diffuse transmission type visibility visualizer, speed of the ship in metres per second measuring equipment, boats and ships driving arrangement and main control equipment, described main control equipment respectively with described diffuse transmission type visibility visualizer, described speed of the ship in metres per second measuring equipment is connected with described boats and ships driving arrangement, according to the maximum permission travel speed of visibility determination boats and ships that described diffuse transmission type visibility visualizer exports, based on the current ship running speed that boats and ships maximum permission travel speed and described speed of the ship in metres per second measuring equipment export, the control of ship running speed is carried out by described boats and ships driving arrangement.
More specifically, described based in the ship control device of gas analysis, comprise further: diffuse transmission type visibility visualizer, comprise support, transmitter unit, receiving element and control module, described support is fixed on Ship body top, described transmitter unit, described receiving element and described control module are fixed on the bracket, described control module comprises micro-CPU and communication interface, described transmitter unit and described receiving element staggered relatively, described transmitter unit adopts GaAs infrared LED to launch scattered light as light source, described receiving element adopts PIN type photosensitive tube receiving scattered light, described control module connects described transmitter unit and described receiving element respectively, described micro-CPU calculates visibility according to the light intensity of the light intensity and receiving scattered light of launching scattered light, described communication interface connects described micro-CPU to export visibility, speed of the ship in metres per second measuring equipment, is arranged in the panel board of ship control room, measures and exports current ship running speed in real time, boats and ships driving arrangement, be arranged in the hold of Ship body rear end, comprise reversible explosive motor, the classification reducing gear train driven by reversible explosive motor, control the slip clutch that reversible explosive motor contacts with classification reducing gear train or departs from, drive with fixed blades propeller shaft and propeller shaft is slowed down and keeps motionless friction brakes, wherein the acceleration of boats and ships and deceleration to be acted on the speed of the rotation of screw propeller and direction by reversible explosive motor and controlling, combination or the operation in succession of Clutch and brake is needed during control, indoor PM2.5 checkout equipment, is arranged in pulpit, adopts built-in filter membrane on-line sampling device to analyze control indoor accelerated test, detects the concentration of PM2.5 fine particle wherein, and export as indoor PM2.5 concentration, outdoor PM2.5 checkout equipment, is arranged in Ship body, adopts built-in filter membrane on-line sampling device to analyze Atmospheric Grains outside pulpit, detect the concentration of PM2.5 fine particle wherein, and exports as outdoor PM2.5 concentration, main control equipment, be arranged in the panel board of ship control room, connect described diffuse transmission type visibility visualizer respectively, described speed of the ship in metres per second measuring equipment, described boats and ships driving arrangement, described indoor PM2.5 checkout equipment and described outdoor PM2.5 checkout equipment, according to the maximum permission travel speed of visibility determination boats and ships received, when current ship running speed exceeds the maximum permission travel speed of boats and ships, send boats and ships overspeed alarm signal, and control the deceleration of boats and ships driving arrangement until current ship running speed is less than or equal to the maximum permission travel speed of boats and ships, simultaneously, when indoor PM2.5 concentration is greater than outdoor PM2.5 concentration, send pulpit to window cue, when indoor PM2.5 concentration is less than outdoor PM2.5 concentration, send pulpit and close window cue, navigator, is arranged in the panel board of ship control room, connects main control equipment so that boats and ships current location is sent to main control equipment, display device, is arranged in the panel board of ship control room, connects main control equipment to show boats and ships maximum permission travel speed, current ship running speed, indoor PM2.5 concentration and outdoor PM2.5 concentration in real time, voice playing equipment, is arranged in the panel board of ship control room, connects main control equipment and closes voice prompted file corresponding to window cue to play to window with boats and ships overspeed alarm signal, pulpit cue or pulpit in real time, Wireless Telecom Equipment, is arranged on Ship body front end, connects main control equipment, for boats and ships current location, visibility and outdoor PM2.5 concentration are wirelessly transmitted to ship-handling center, wherein, during main control equipment permission travel speed maximum according to the visibility determination boats and ships received, visibility scale scope at the visibility received determines the maximum permission travel speed of different boats and ships, and described visibility scale scope comprises less than 100 meters, 100 meters to 1 kilometer, 1 kilometer to 2 kilometers, 2 kilometers to 5 kilometers, 5 kilometers to more than 100 kilometers and 100 kilometers.
More specifically, described based in the ship control device of gas analysis, the transmitter unit of described diffuse transmission type visibility visualizer launches scattered light with 33 degree of inclination angles.
More specifically, described based in the ship control device of gas analysis, described voice playing equipment also comprises built-in voice document storage unit, closes voice prompted file corresponding to window cue for storing to window with boats and ships overspeed alarm signal, pulpit cue or pulpit.
More specifically, described based in the ship control device of gas analysis, micro-CPU of the control module of described diffuse transmission type visibility visualizer and communication interface are encapsulated in be fixed on the support of described diffuse transmission type visibility visualizer in a control box, and described support vertical is fixed on Ship body top.
More specifically, described based in the ship control device of gas analysis, described display device receives window cue or pulpit, pulpit that described main control equipment sends and closes window cue, and on described display device, shows dynamic similation window or close window action to remind deck officer.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram of the ship control device based on gas analysis illustrated according to an embodiment of the present invention.
Fig. 2 is the structural representation of the diffuse transmission type visibility visualizer of the ship control device based on gas analysis illustrated according to an embodiment of the present invention.
Embodiment
Below with reference to accompanying drawings the embodiment of the ship control device based on gas analysis of the present invention is described in detail.
In the driving process of boats and ships, water surface visibility is a key factor determining ship's speed.The water surface that visibility is high, driver can observe far distance, can keep high-speed cruising relievedly, and at the water surface of low visibility, driver must lower speed, to retain enough reaction time process crises.
Visibility, refers to the ultimate range that object can be seen by twenty-twenty vision, also refers to object when certain distance by readability that normal eyesight is seen.Visibility has difference greatly in different environments.In the clean especially arctic of air or mountain area, visibility can reach 70 ~ 100km, but visibility decreases due to atmospheric pollution and moisture usually.Visibility can be reduced to zero by smog, and this is breakneck for sailing, the desert area occurred in sandstorm equally and to have the place of forest fire to drive be all very dangerous.The heavy rain of thunderstorm weather not only makes visibility reduce, simultaneously can not brake hard because ground is wet and slippery.Weather also belongs in blind category.In addition, under the environment of smog, mist, haze, visibility is different.Be defined as less than 1km to the visibility of smog in the world, the visibility of mist is 1km ~ 2km, and the visibility of haze is 2km ~ 5km.Smog and mist are construed to be the important component part of water droplet usually, and haze is relative with the particle diameter of cigarette smaller.Low-down visibility, such as, during insufficient visibility 100 meters, usual visibility is considered to be zero, and road, air route can be blocked in this case.
The instrument of visibility can be measured, be called as visibility visualizer.The visibility visualizer generally applied in the world mainly contains transmission-type and diffuse transmission type two kinds.Advantages such as wherein, transilluminator is because of needs baseline, and it is large to take up an area scope, be not suitable on the seashore station, beacon automatic weather station and boats and ships, but it has self-checking capability, and under low visibility performance is good and be applicable to Civil Aviation System; Scatterometer is widely used in the systems such as harbour, aviation, highway with the little and cheap price of its volume.
Except air visibility brings impact to the speed of a ship or plane, the PM2.5 concentration in gas also can bring actual bodily harm to ship's staff, especially pulpit is in the situation of hull lower position.At this moment, the Ventilation Strategies determining pulpit according to the contrast of PM2.5 concentration inside and outside pulpit is needed.
The ship control device based on gas analysis that the present invention proposes, automatically the speed of a ship or plane can be controlled according to air visibility, what ensure boats and ships can safety traffic when various different visibility, meanwhile, can provide important references for the improvement of the air regime of ship control room.
Fig. 1 is the block diagram of the ship control device based on gas analysis illustrated according to an embodiment of the present invention, described ship control device comprises diffuse transmission type visibility visualizer 1, speed of the ship in metres per second measuring equipment 2, boats and ships driving arrangement 4, main control equipment 3 and power-supply unit 5, described main control equipment 3 respectively with described diffuse transmission type visibility visualizer 1, described speed of the ship in metres per second measuring equipment 2 is connected with described boats and ships driving arrangement 4, according to the maximum permission travel speed of visibility determination boats and ships that described diffuse transmission type visibility visualizer 1 exports, based on the current ship running speed that boats and ships maximum permission travel speed and described speed of the ship in metres per second measuring equipment 2 export, the control of ship running speed is carried out by described boats and ships driving arrangement 4, described power-supply unit 5 is that each equipment in described ship control device is powered.
The concrete structure of each equipment of described ship control device is as follows.
It is the structural representation of the diffuse transmission type visibility visualizer of the ship control device based on gas analysis illustrated according to an embodiment of the present invention see Fig. 2, Fig. 2.Described diffuse transmission type visibility visualizer 1 comprises support 14, transmitter unit 11, receiving element 12 and control module 13, described support 14 is fixed on Ship body top, described transmitter unit 11, described receiving element 12 and described control module 13 are fixed on described support 14, described control module 13 comprises micro-CPU and communication interface, described transmitter unit 11 and described receiving element 12 staggered relatively, described transmitter unit 11 adopts GaAs infrared LED to launch scattered light as light source, described receiving element 12 adopts PIN type photosensitive tube receiving scattered light, described control module 13 connects described transmitter unit 11 and described receiving element 12 respectively, described micro-CPU calculates visibility according to the light intensity of the light intensity and receiving scattered light of launching scattered light, described communication interface connects described micro-CPU to export visibility.
Speed of the ship in metres per second measuring equipment 2, is arranged in the panel board of ship control room, measures and exports current ship running speed in real time.
Boats and ships driving arrangement 4, be arranged in the hold of Ship body rear end, comprise reversible explosive motor, the classification reducing gear train driven by reversible explosive motor, control the slip clutch that reversible explosive motor contacts with classification reducing gear train or departs from, drive with fixed blades propeller shaft and propeller shaft is slowed down and keeps motionless friction brakes, wherein the acceleration of boats and ships and deceleration to be acted on the speed of the rotation of screw propeller and direction by reversible explosive motor and controlling, combination or the operation in succession of Clutch and brake is needed during control.
Indoor PM2.5 checkout equipment, is arranged in pulpit, adopts built-in filter membrane on-line sampling device to analyze control indoor accelerated test, detects the concentration of PM2.5 fine particle wherein, and export as indoor PM2.5 concentration.
Outdoor PM2.5 checkout equipment, is arranged in Ship body, adopts built-in filter membrane on-line sampling device to analyze Atmospheric Grains outside pulpit, detect the concentration of PM2.5 fine particle wherein, and exports as outdoor PM2.5 concentration.
Main control equipment 3, be arranged in the panel board of ship control room, connect described diffuse transmission type visibility visualizer 1 respectively, described speed of the ship in metres per second measuring equipment 2, described boats and ships driving arrangement 4, described indoor PM2.5 checkout equipment and described outdoor PM2.5 checkout equipment, according to the maximum permission travel speed of visibility determination boats and ships received, when current ship running speed exceeds the maximum permission travel speed of boats and ships, send boats and ships overspeed alarm signal, and control boats and ships driving arrangement 4 and slow down until current ship running speed is less than or equal to the maximum permission travel speed of boats and ships, simultaneously, when indoor PM2.5 concentration is greater than outdoor PM2.5 concentration, send pulpit to window cue, when indoor PM2.5 concentration is less than outdoor PM2.5 concentration, send pulpit and close window cue.
Navigator, is arranged in the panel board of ship control room, connects main control equipment 3 so that boats and ships current location is sent to main control equipment 3.
Display device, is arranged in the panel board of ship control room, connects main control equipment 3 to show boats and ships maximum permission travel speed, current ship running speed, indoor PM2.5 concentration and outdoor PM2.5 concentration in real time.
Voice playing equipment, is arranged in the panel board of ship control room, connects main control equipment 3 and closes voice prompted file corresponding to window cue to play to window with boats and ships overspeed alarm signal, pulpit cue or pulpit in real time.
Wireless Telecom Equipment, is arranged on Ship body front end, connects main control equipment 3, for boats and ships current location, visibility and outdoor PM2.5 concentration are wirelessly transmitted to ship-handling center.
Wherein, during main control equipment 3 permission travel speed maximum according to the visibility determination boats and ships received, visibility scale scope at the visibility received determines the maximum permission travel speed of different boats and ships, and described visibility scale scope comprises less than 100 meters, 100 meters to 1 kilometer, 1 kilometer to 2 kilometers, 2 kilometers to 5 kilometers, 5 kilometers to more than 100 kilometers and 100 kilometers.
Wherein, the transmitter unit 11 of described diffuse transmission type visibility visualizer 1 launches scattered light with 33 degree of inclination angles; Described voice playing equipment also comprises built-in voice document storage unit, closes voice prompted file corresponding to window cue for storing to window with boats and ships overspeed alarm signal, pulpit cue or pulpit; Micro-CPU of the control module 13 of described diffuse transmission type visibility visualizer 1 and communication interface are encapsulated in be fixed on the support 14 of described diffuse transmission type visibility visualizer 1 in a control box, and described support 14 is vertically fixed on Ship body top; Described display device receives window cue or pulpit, pulpit that described main control equipment 3 sends and closes window cue, and on described display device, shows dynamic similation window or close window action to remind deck officer.
In addition, PM2.5 fine particle is also known as particulate, fine grained.In air, particle diameter is less than the particle (gasoloid) of 2 μm (sometimes with being less than 2.5 μm, i.e. PM2.5).Although fine particle is the component that in earth atmosphere composition, content is little, it has important impact to air quality and visibility etc.Fine particle particle diameter is little, is rich in a large amount of poisonous and harmful substances and residence time is in an atmosphere long, fed distance is far away, thus larger on the impact of health and atmosphere quality.In February, 2012, State Council of the People's Republic of China agrees to that " ambient air quality " issuing new revision adds fine particle monitoring index.On February 28th, 2013, it is fine particle that national scientific and technical terminology validation board of China claims PM2.5 to intend definite designation, PM2.5 detecting instrument of the present invention, there is the microcomputer laser dust monitor of the novel built-in filter membrane on-line sampling device of new century international most advanced level, while monitoring dust concentration continuously, can particle be collected, to analyze its composition, and obtain mass concentration conversion coefficient K value.Can direct-reading bug dust concentration (mg/m), there is PM10, PM5, PM2.5 detection option selective.
Ship control device based on gas analysis of the present invention, by the detection to ship running environmental air visibility, automatically the safe velocity of boats and ships is determined, ensure that boats and ships are safe and efficient under different visibility environments and pass through the water surface, simultaneously, PM2.5 concentration data inside and outside pulpit is provided, provides important references for driver improves control indoor air environment.
Be understandable that, although the present invention with preferred embodiment disclose as above, but above-described embodiment and be not used to limit the present invention.For any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (3)
1. the ship control device based on gas analysis, it is characterized in that, described ship control device comprises diffuse transmission type visibility visualizer, speed of the ship in metres per second measuring equipment, boats and ships driving arrangement and main control equipment, described main control equipment respectively with described diffuse transmission type visibility visualizer, described speed of the ship in metres per second measuring equipment is connected with described boats and ships driving arrangement, according to the maximum permission travel speed of visibility determination boats and ships that described diffuse transmission type visibility visualizer exports, based on the current ship running speed that boats and ships maximum permission travel speed and described speed of the ship in metres per second measuring equipment export, the control of ship running speed is carried out by described boats and ships driving arrangement.
2., as claimed in claim 1 based on the ship control device of gas analysis, it is characterized in that, described Ship Visit Report alarm device also comprises:
Diffuse transmission type visibility visualizer, comprise support, transmitter unit, receiving element and control module, described support is fixed on Ship body top, described transmitter unit, described receiving element and described control module are fixed on the bracket, described control module comprises micro-CPU and communication interface, described transmitter unit and described receiving element staggered relatively, described transmitter unit adopts GaAs infrared LED to launch scattered light as light source, described receiving element adopts PIN type photosensitive tube receiving scattered light, described control module connects described transmitter unit and described receiving element respectively, described micro-CPU calculates visibility according to the light intensity of the light intensity and receiving scattered light of launching scattered light, described communication interface connects described micro-CPU to export visibility,
Speed of the ship in metres per second measuring equipment, is arranged in the panel board of ship control room, measures and exports current ship running speed in real time;
Boats and ships driving arrangement, be arranged in the hold of Ship body rear end, comprise reversible explosive motor, the classification reducing gear train driven by reversible explosive motor, control the slip clutch that reversible explosive motor contacts with classification reducing gear train or departs from, drive with fixed blades propeller shaft and propeller shaft is slowed down and keeps motionless friction brakes, wherein the acceleration of boats and ships and deceleration to be acted on the speed of the rotation of screw propeller and direction by reversible explosive motor and controlling, combination or the operation in succession of Clutch and brake is needed during control,
Indoor PM2.5 checkout equipment, is arranged in pulpit, adopts built-in filter membrane on-line sampling device to analyze control indoor accelerated test, detects the concentration of PM2.5 fine particle wherein, and export as indoor PM2.5 concentration;
Outdoor PM2.5 checkout equipment, is arranged in Ship body, adopts built-in filter membrane on-line sampling device to analyze Atmospheric Grains outside pulpit, detect the concentration of PM2.5 fine particle wherein, and exports as outdoor PM2.5 concentration;
Main control equipment, be arranged in the panel board of ship control room, connect described diffuse transmission type visibility visualizer respectively, described speed of the ship in metres per second measuring equipment, described boats and ships driving arrangement, described indoor PM2.5 checkout equipment and described outdoor PM2.5 checkout equipment, according to the maximum permission travel speed of visibility determination boats and ships received, when current ship running speed exceeds the maximum permission travel speed of boats and ships, send boats and ships overspeed alarm signal, and control the deceleration of boats and ships driving arrangement until current ship running speed is less than or equal to the maximum permission travel speed of boats and ships, simultaneously, when indoor PM2.5 concentration is greater than outdoor PM2.5 concentration, send pulpit to window cue, when indoor PM2.5 concentration is less than outdoor PM2.5 concentration, send pulpit and close window cue,
Navigator, is arranged in the panel board of ship control room, connects main control equipment so that boats and ships current location is sent to main control equipment;
Display device, is arranged in the panel board of ship control room, connects main control equipment to show boats and ships maximum permission travel speed, current ship running speed, indoor PM2.5 concentration and outdoor PM2.5 concentration in real time;
Voice playing equipment, is arranged in the panel board of ship control room, connects main control equipment and closes voice prompted file corresponding to window cue to play to window with boats and ships overspeed alarm signal, pulpit cue or pulpit in real time;
Wireless Telecom Equipment, is arranged on Ship body front end, connects main control equipment, for boats and ships current location, visibility and outdoor PM2.5 concentration are wirelessly transmitted to ship-handling center;
Wherein, during main control equipment permission travel speed maximum according to the visibility determination boats and ships received, visibility scale scope at the visibility received determines the maximum permission travel speed of different boats and ships, and described visibility scale scope comprises less than 100 meters, 100 meters to 1 kilometer, 1 kilometer to 2 kilometers, 2 kilometers to 5 kilometers, 5 kilometers to more than 100 kilometers and 100 kilometers.
3., as claimed in claim 2 based on the ship control device of gas analysis, it is characterized in that, described voice playing equipment also comprises:
Built-in voice document storage unit, closes voice prompted file corresponding to window cue for storing to window with boats and ships overspeed alarm signal, pulpit cue or pulpit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510111507.9A CN104677861A (en) | 2014-07-28 | 2014-07-28 | Ship control device based on gas analysis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510111507.9A CN104677861A (en) | 2014-07-28 | 2014-07-28 | Ship control device based on gas analysis |
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| CN201410362300.4A Division CN104122232B (en) | 2014-07-28 | 2014-07-28 | ship control device based on gas analysis |
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| CN104677861A true CN104677861A (en) | 2015-06-03 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874398A (en) * | 2012-10-16 | 2013-01-16 | 河海大学 | Intelligent early warning and braking safety system for ship |
| CN202975038U (en) * | 2012-12-10 | 2013-06-05 | 中国船舶重工集团公司第七一〇研究所 | Ship speed measuring system |
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- 2014-07-28 CN CN201510111507.9A patent/CN104677861A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874398A (en) * | 2012-10-16 | 2013-01-16 | 河海大学 | Intelligent early warning and braking safety system for ship |
| CN202975038U (en) * | 2012-12-10 | 2013-06-05 | 中国船舶重工集团公司第七一〇研究所 | Ship speed measuring system |
Non-Patent Citations (1)
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| 庞永星 等: "基于GPRS/CDMA通讯的能见度自动监测网研究", 《电子测量与仪器学报》 * |
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