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1、_The development trend of the robot1. Preface:Climbing robot is an important branch in the field of mobile robot, flexible mobile on vertical wall, replace artificial under the condition of the limit to complete various tasks, is one of the hotspot in research of the robot. It is mainly used in the
2、nuclear industry, petrochemical industry, shipbuilding, fire departments and investigation activities, such as the building external wall cleaning, material storage tank in petrochemical enterprise testing and maintenance, the outer wall of large steel plate spray paint, and in building accident res
3、cue and relief, etc., and achieved good social benefits and economic benefits, has wide development prospects.After 30 years of development, the field of robot which has emerged a large number of fruitful results, especially since the 1990 s, especially rapid development in the field of climbing rob
4、ot at home and abroad. In recent years, due to the development of a variety of new technology, the robot which solved many technical challenges, greatly promote the development of the climbing robot. The robot design activities of universities in our country also has a wide development, this kind of
5、 atmosphere for our robot research and development of special and professional talents cultivation is of positive significance.2. Climbing robot research status abroad1966 Japanese professor west light wall mobile robot prototype is developed for the first time, and performance success in Osaka pref
6、ecture university. This is a kind of rely on negative pressure adsorption climbing robot. Then appeared various types of climbing robot, has already begun to the late 80 s application in the production. Japans most rapid development in the development of climbing robot, mainly used in the constructi
7、on industry and nuclear industry. Such as: Japan shimizu construction company has developed with the outer wall of the building industry coating with ceramic tile of the robot, they developed by negative pressure adsorption cleaning climbing robot, on the surface of the glass for the Canadian embass
8、y to clean. Tokyo university of technology development of the wireless remote control magnetic adsorption climbing robot. In Japans miti limit homework robot national research projects, supported by day CDH, developed a large pot of negative pressure adsorption surface inspection robots used in nucl
9、ear power plants, etc.Other countries are also added to the climbing robot research upsurge, such as: Seattle Henry R Seemann under the funding of the Boeing company developed a vacuum adsorption crawler AutoCrawler robot. On the two tracks each containing a number of small adsorption chamber, with
10、the moving of the crawler, adsorption chamber form continuous vacuum cavity and makes the crawler walking against the wall. American CaseWestern Reserve University developed by using four climbing robot prototype legs. Similar to the first two robots, the robot depends on four legs on biomimetic vis
11、cous materials to adsorption, the prototype is the four legs wheel on the sole of the foot even special distribution is more advantageous to the robot stable crawling on the wall. The quality of the robot is only 87 g. Polytechnic school in the early 1990 s, British Portsmouth has developed a climbi
12、ng robot multilegged walking type. Adopting modular design, the robot is composed of two similar modules, each module includes two mechanical legs and leg controller. According to the task need to install a different number of legs, reconfigurable ability. Mechanical legs using bionics mechanism, si
13、mulation of the large animals arm muscle function, is two type, including upper and lower two and three double-acting cylinder, with three degrees of freedom. Good stability and bearing capacity is big, the robots lightweight, and can span bigger obstacles. In addition to the leg on one end of vacuu
14、m cups, robot equipped with suction cups, abdomen mass ratio of powder and make the robot has a larger load of 2:1.3. Climbing robot research status in ChinaChina is also in a similar study since the 1990 s. In 1988 at the national 863 high technology program, under the support of the robotics insti
15、tute of Harbin institute of technology has successfully developed the use of magnetic adsorption and vacuum adsorption two series of five types of wall climbing robot. Successful development of the our country the first wall climbing robot remote detection, using negative pressure adsorption, omni-d
16、irectional mobile wheel, used for nuclear waste storage jars of wall weld defect detection. Developed in 1994 for tall buildings wall climbing robot cleaning CLR - , adopts the omni-directional mobile mechanism, the robot in situ can arbitrarily change the direction of movement. After the developmen
17、t of the CLR - , driven by two independent ways - coaxial two-wheeled differential mechanism, through the coordination of two rounds of speed control to realize the omni-directional mobile robot, the robot ontology and using power line carrier communication methods between the ground control station
18、. Above-mentioned three climbing machine adopts single suction cup structure, spring air sealed, ensure the crawl robot with high speed and reliable adhesion ability. In 1995 successfully developed the metal corrosion by magnetic adsorption climbing robot, structure of permanent magnetic adsorption,
19、 accomplished by two tracks positive &negative mobile turn. The robot can do for petrochemical enterprises to the outer wall of the metal material storage tank to spray paint, sandblasting, as well as with automatic detection system to test the tank wall thickness. Developed in 1997s detection of wa
20、ter wall climbing robot, a circular permanent magnet adsorption block in conformity with the tank wall arc, improve the adsorption capacity, and improve the efficiency of the operation. Shanghai university also conducted early tall wall cleaning robot research, successively developed a vertical wall
21、 climbing robot and spherical wall climbing robot. The spherical wall climbing robot adopts many suckers, negative pressure adsorption, 6 foot independent driving leg feet walking style, can be used for different radius of curvature of the spherical outer wall since 1996, the Beijing university of a
22、eronautics and astronautics has successfully developed WASH2 MAN, CLEANBOT 1, SKYCLEAN, hanging basket type window robot and LanTianJie treasure curtain wall cleaning robot prototype. For all the window is brushed pneumatic robot; Hanging basket type cleaning robot, the robot depends on the roof of
23、the safety line traction, attached with the negative pressure made by fan robot on the wall in the application background of national grand theatre ellipsoid ceiling cleaning developed suitable for complex curved surface from climbing robot prototype, the climbing mechanism, mobile mechanism, cleani
24、ng robot has many similarities, but due to its special working environment and mission requirements, in terms of theory and technology has some particularity.4. The key technology of robot:4.1 adsorption mechanism, adsorption mechanism of action is to produce an upward force to balance the gravity o
25、f the robot, keep it on the wall. Currently, magnetic adsorption methods mainly include vacuum negative pressure adsorption, adsorption, propeller thrust and binder etc. Several ways. Due to the adsorption methods each have limitations, climbing robot developed by often targeted strong, applies only
26、 to a specific task, difficult to generalize. Robot design need to work on task, environment, choose the right means of adsorption. In recent years, people through the study of the adsorption mechanism of gecko reptiles such as the soles of your feet, making the polymer synthesis of viscous material
27、, the use of van der Waals force between the molecules and molecular materials, can be obtained on the contact area of small huge adsorption capacity, and has the advantages of adsorption has nothing to do with the surface material properties. Short life but at the moment, the use of these materials
28、, the use of a certain number of times after lose viscosity, practical, need further study.4.2 mobile mechanism and motion control system: mobile mechanism and the movement control system of robot which major wheeled mobile mechanism, more foot type, such as caterpillar, among them, the wheel and fo
29、ot type which has been widely used, caterpillar much for magnetic adsorption method. Obstacle ability is wall robot which used to an important indicator of performance. When work surface is convex, groove, the robot to go through these obstacles, we must have enough obstacle ability. All kinds of mo
30、bile mechanism, more foot type robot obstacle-navigation ability is stronger, its each leg small suction cup is placed, when faced with obstacles, can control the leg, make the small suction cup across the obstacles one by one. Wall mobile mechanism of the robot can make the robot on the premise of
31、reliable adsorption can move on the wall. Due to the particularity of climbing robot working in wall, mobile mechanism and adsorption mechanism exists coupling, which brought some difficulties to the robots motion control. Than climbing robot sucker foot type and legs with a suction cup at the end,
32、every move a leg needs to be done to eliminate suction - leg - Wallace leg, left leg - generate adsorption force a series of actions. In this process, the robot mobile mechanism of the action should coordinate with each other, and the adsorption mechanism to to guarantee the flexible mobile robot on
33、 the wall. In addition, there is also a mobile mechanism and adsorption separation, such as single suction cups, robot sucker adsorption, sustainable continuous movement of driving wheel mobile robot, motion control is relatively simple.Energy supply and drive mode: 4.3 the driving mode of energy su
34、pply and energy supply way with people via the wire line for the machine to provide energy such as electricity, gas, also has a built-in battery, cylinders and so on. Drive ways mainly have the pneumatic motor and other several ways. Climbing robot is designed to adopt high efficiency quality than d
35、rive and source of power, especially the wireless control cases. Using motor drive, energy supply mainly include polymer lithium battery, nickel metal hydride batteries, electrochemical batteries and fuel cells. In addition, due to the energy of internal combustion engine - - gasoline, hydrogen fuel
36、 can have higher weight ratio, such as advanced micro internal combustion engine can also be applied to the climbing robot.Safety problems: 4.4 the robot by interference, environmental change circumstances, how to ensure the safety of the robot is attached to the wall without falling, falling or aft
37、er how to minimize the damage of the robot. The past buildings cleaning climbing robot, developed by most used by in carrying the car at the top of the tower, hoisting and wire rope of insurance system on the robot. Robot for some other purposes, such as detection with small climbing robot, the goal
38、 is not sure, cannot use the rope way of insurance, so need to study new way to prevent falling. Could consider using a parachute, small power into a pulp, fast supporting resistance drop plate, etc., these may be a future development direction of climbing robot safety measures.5. Development trend
39、of the robotHard drive, sensor and control the development of software technology has greatly promoted the development of climbing robot technology, the demand of the practical application is also put forward the challenge, the development of robot climbing robot development trend in the aggregate,
40、basically has the following several aspects. (1) the development of new adsorption technology. Adsorption technology has been a bottleneck of the development of the robot, it determines the application range of the robot. (2) the task of robot from simplification to muti_function change direction. T
41、he past most climbing robot which is used for washing, spraying, detection and so on homework, homework tasks are often confined to a single task. Now people want climbing robot can equipped with a variety of tools, are working on different occasions. (3) the miniaturization, micromation is currentl
42、y the trend of the development of the robot. On the premise of meet the functional requirements, small volume, light quality of robot can be less energy consumption, high flexibility, and in some special occasions are also need robot with small volume. (4) by the mooring operation development to the
43、 direction of untethered. Because the robot working space is generally larger, mooring operation greatly limits the robot working space, so, in order to improve the flexibility of robot and expand the working space, no cable is changed and is now and the future development trend of the robot. (5) by
44、 simple remote monitoring to intelligent direction. Combined with artificial intelligence, the robot can in a closed environment has a certain capacity for independent decision and complete the task, and have ego to protect ability, is the important direction of mobile robot, is also a important dev
45、elopment direction of mobile robot climbing wall. (6) the adaptability of the reconfigurable robot is an important indicator. In order to make the robots could be used in different occasions, according to the mission requirements, under the condition of the system does not need to design, make full
46、use of existing robot system, should make with reconfigurable robot, which has a modular structure. According to the mission requirements, the need of module is directly connected to form a new robot.译文：1.引言：爬壁机器人是移动机器人领域的一个重要分支,可在垂直壁面上灵活移动,代替人工在极限条件下完成多种作业任务,是当前机器人领域研究的热点之一。它主要应用于核工业、石化工业、造船业、消防部门及
47、侦查活动等,如对高楼外壁面进行清洗,对石化企业中的储料罐外壁进行检测和维护,对大面积钢板进行喷漆,以及在高楼事故中进行抢险救灾等，并且取得了良好的社会效益和经济效益，具有广阔的发展前景。经过30多年的发展,爬壁机器人领域已经涌现出一大批丰硕的成果,特别是20世纪90年代以来,国内外在爬壁机器人领域中的发展尤为迅速。近年来,由于多种新技术的发展,爬壁机器人的许多技术难题得到解决,极大地推动了爬壁机器人的发展。在我国各高校机器人设计活动也已经很广的开展起来，这种氛围对我国机器人的研制开发特别以及专业方面人才的培养是具有积极意义的。2.国外爬壁机器人研究现状1966年日本的西亮教授首次研制成功壁面移
48、动机器人样机,并在大阪府立大学表演成功。这是一种依靠负压吸附的爬壁机器人。随后出现了各种类型的爬壁机器人,到80年代末期已经开始在生产中应用。日本在开发爬壁机器人方面发展最为迅速,主要应用在建筑行业与核工业。如：日本清水建设公司开发了建筑行业用的外壁涂装与贴瓷砖的机器人,他们研制的负压吸附清洗玻璃面的爬壁机器人,曾为加拿大使馆清洗。东京工业大学开发了无线遥控磁吸附爬壁机器人。在日本通产省极限作业机器人国家研究计划支持下,日晖株式会社开发了用于核电站大罐的负压吸附壁面检查机器人等。其他各国也加入到爬壁机器人研究的热潮中如：美国西雅图的Henry R Seemann在波音公司的资助下研制出一种真空
49、吸附履带式爬壁机器人“AutoCrawler”。其两条履带上各装有数个小吸附室,随着履带的移动,吸附室连续地形成真空腔而使得履带贴紧壁面行走。美国CaseWestern Reserve University研制的采用4个“腿轮”的爬壁机器人样机。与前两种机器人相似,该机器人依靠4个“腿轮”上的仿生粘性材料来吸附,样机不同的是这4个腿轮上脚掌的特殊分布更有利于机器人在壁面上稳定爬行。该机器人质量仅有87 g。20世纪90年代初,英国朴次茅斯工艺学校研制了一种多足行走式的爬壁机器人。采用模块化设计,机器人由两个相似的模块组成,每个模块包括两个机械腿和腿部控制器。可根据任务需要来安装不同数量的腿,可重构能力强。机械腿采用仿生学机构,模拟大型动物臂部肌肉的功能,为两节式,包括上、下两个杆和3个双作用气缸,具有3个自由度。稳定性好,承载能力大,利于机器人的轻量化,并能跨越较大的障碍物。除腿端部各有一真空吸盘外,机器人腹部设有吸盘, 使机器人具有较大的负载质量比,可达21。3.国内爬壁机器人研究现状中国也于20世纪90年代以来进行类似的研究