Contact
Subscribe
Advertise
Follow us on:
Search:
Banner
Underwater Robots: A Deep View Of The Oceans

TP_201706_FUTURE_07.jpg

      濡備粖鐨勬妧鏈凡缁忓彂杈惧埌鍙互渚涗汉澶┖鏃呰锛屽彲浠ヤ笂鏈堢悆鐧荤伀鏄熴傜劧鑰屾垜浠汉绫诲鍦扮悆鏈韩鐨勬帰绱㈣繕杩滄湭缁撴潫锛屽叾涓渶鍙︿汉鐫杩峰張闅句互绌锋瀬鐨勪究鏄娴锋磱鐨勬帰绱€

      绉戝瀹朵竴鐩存病鏈夋斁寮冨娴锋磱鐨勫彂鎺橈紝鐢变簬娣辨捣鐜鑾祴锛屼汉绫婚毦浠ラ暱鏃堕棿鍋滅暀锛屾按涓嬫満鍣ㄤ汉渚挎垚涓轰簡鎴戜滑浜嗚В娴峰簳涓栫晫鐨勪竴鎵囩獥鍙c備絾鏄疄鐜拌繖涓鐩爣骞朵笉瀹规槗锛屼笉鍚屼簬闄嗗湴鐜锛屾捣娲嬩腑鏈夊緢楂樼殑姘村帇浠ュ強鐭跨墿璐ㄥ拰鐩愪唤锛屾満鍣ㄤ汉濡備綍鍦ㄦ按涓嬫姉鍘嬨佸瘑灏併佹姉鑵愯殌鍚屾椂鐏垫椿浣滀笟锛屽氨鎴愪簡寰堝ぇ鐨勯毦棰樸
 
      鏈変簺鏈哄櫒浜洪厤澶囦簡鍐呯疆鐪肩潧锛岀敤鍒嗘瀽鎶鏈笌鍏夊鎰熺煡鍦ㄦ按涓嬪畾鍚戙傛湁浜涙満鍣ㄤ汉瀹夎浜嗗祵鍏ュ紡纭呰兌灏佽鍜岃秴澹版尝浼犳劅鍣紝浣挎満鍣ㄤ汉鍙互浣跨敤“铦欒潬”鐨勮兘鍔涘湪姘翠腑鎰熺煡鐗╀綋銆傛按涓嬫満鍣ㄤ汉杩橀噰鐢ㄧ壒娈婅兘婧愮郴缁燂紝姣斿杞讳究鍙堝己鍔茬殑閿傜數姹犮
 
      鐩墠绉戝瀹舵鍦ㄨ嚧鍔涚爺鍙戜笉闇浜哄伐鎿嶄綔灏卞彲浠ヨ嚜琛屽湪娴峰簳浣滀笟鐨勬満鍣ㄤ汉锛岃繖浜涙満鍣ㄤ汉鍙互鐙珛浣滀笟骞跺湪娴蜂笂鍙戝洖瀹氫綅銆傛柊涓浠f満鍣ㄤ汉杩樺皢鑾峰緱鏇村鐨勮鐭ヨ兘鍔涳紝瀹屾垚鏇村姞鍏锋湁鎸戞垬鎬х殑浠诲姟锛屽府鍔╀汉绫绘帰绱㈡棤灏界殑娴峰簳涓栫晫锛屾彁渚涘叏鏂逛綅瑙傛祴娴锋磱鐨勬柊鏂瑰紡,銆
 
TP_201706_FUTURE_08.jpg
Although all life came from the sea, most robots are meant to operate on land. In fact, the vast majority of mobile and industrial robots were designed to operate on dry land until recently. 
 
Thanks to the development in underwater robotics, the new technology has enabled them to operate under the ocean in the recent years. This is an interdisciplinary branch of robotics that involves underwater robots, either remotely operated or autonomous. It is a relatively new science that is becoming more and more popular with the development of computer science, mechanical and electrical engineering as well as other related technologies. 

Undersea Environment – Obstacles And Hazards For Robots
 
While today's technology allows robots to explore Mars, there are numerous complex issues that limit us from getting a deep view of the oceans due to hazardous and unstructured undersea environment. 
 
On land, robots operate on a firm footing under constant atmospheric pressure and their bearing isn't subject to corrosion. Such a favorable environment allows them to use simple visual sensing systems and be easily observed all the time. On the other side, undersea robots operate in considerably tougher working conditions. They must work under enormous pressure in an aqueous, saline environment at the depth of more than 10,000 feet below sea level. Moreover, the chemical environment in deep oceans is very corrosive which requires the use of waterproof, anti-corrosive materials. The moving parts are hard to lubricate in water so that they have to be sealed by special watertight joints. All of this requires a special design of underwater robots and use of high-end technology.
TP_201706_FUTURE_09.jpg
Design And Capabilities
 
To perform heavy-duty underwater tasks unaided, robots are equipped with top-notch technology. Some of them have built-in “eyes” that use optical perception based on analysis technology and special exposure which lets robots orient in turbid water. Others have a "brain," i.e. a control program that keeps robots on course while diving in the sea by determining a distance to a certain wall or an item that is to be examined. 
 
There are also models with embedded silicone encapsulation (that involves the pressure-tolerant electronics) and the ultrasound sensors which operate as “ears,” permitting robots to inspect objects under water. When high frequency sound waves are reflected by an obstacle, the sensors placed in the robot ears register them immediately. Undersea robots use special energy management systems that include lightweight but powerful lithium batteries. Energy is encapsulated by silicone which ensures that the collected data is saved before the battery runs out of energy and the robot has to get back to surface.
TP_201706_FUTURE_10.jpg
Applications
 
Underwater robots have a number of applications, such as military use, scientific exploration and various undersea hobbies. Today's remote-controlled underwater robots are mainly used for inspection, research and maintenance work. Equipped with top-line sensors and other necessary technology, underwater robots inspect docks and get deep into the bottom of the sea to seek raw materials.  
 
Aside from being able to swim, these robots are equipped with end effectors and multi-DOF manipulators which enable them to perform different tasks while being under water. For example, they can perform tasks on salvage, construction, repair and rescue. Besides, underwater robots are also utilized by scientists and military in collecting objects that are deeply submerged on the seabed.
TP_201706_FUTURE_11.jpg
Autonomous Underwater Robots
 
Researchers are tending to develop robots that will be capable of carrying out a broad range of undersea tasks without any help from humans. They are putting a lot of effort in development and improvement of autonomous undersea robots which are able to carry out jobs independently and orient themselves in the sea. Meanwhile there are a variety of autonomous underwater vehicles which take samples or collect data before returning to their starting points.
TP_201706_FUTURE_12.jpg
New Generation Of Underwater Robots
 
A new generation of undersea robots will be more robust, smaller and less expensive than the previous models. These robots are supposed to find their bearings in turbid harbor water equally well as in clear mountain reservoirs. Apart from being able to inspect shallow offshore concrete bases, autonomous underwater robots will be capable of operating at the very bottom of deep oceans. 
 
Next-generation robots will get more cognitive capabilities, allowing humans to set high-level goals whereas robots figure out themselves how to achieve them by using the MIT systems. For instance, an engineer may provide a robot with a list of underwater locations to inspect along with physical directions and time constraints. The robot will be able to plan out a route by itself within a given time frame, picking locations to investigate. What's more, it will also be able to diagnose problems and re-plan a mission autonomously if needed. The robot will choose to fail a task if an unforeseen event arises and hinders it to complete a mission. 
 
This technology will let underwater robots operate independently, reduce the number of people on scientific cruises and offer a completely new way of observing the oceans.
 
--- END ---
 
  About TJ+     Contact TJ+     Subscribe to TJ+     Advertise on TJ+  
Copyright © 2019 TianjinPlus.com All rights reserved.