皮皮学,免费搜题
登录
搜题
【简答题】
Pipeline Exploration Robot Regular inspection of pipelines is a key factor in ensuring safe transport and finding pipe leakages or blockages for a wide variety of applications , e.g. oil and gas transport. Using pipeline exploration robots to enter pipelines and carry out inspection work with HD cameras greatly increases Efficiency and quality of inspection. A pipeline exploration robot system includes a control station and a robot. A control station is a single board computer or a PC responsible for receiving, storing and displaying video signals sent by robots as well as controlling robots’behavior by sending instructions. Pipeline exploration robots consist of a multimedia application processor, status and environment information, camera and a communication system. The application processors controls robots’ movements and operate the camera system based on the instructions sent by the control station, while simultaneously sending robot status and encoded video signals back to the control station. Pipeline exploration robots usually use wheels or caterpillar tracks (履带) as their moving system because gas/ oil pipelines always have a large diameter. An individual moving system of this kind is equipped with multiple brushless motors to ensure the capability of overcoming obstacles. The status and environment information system is composed of a rotary encoder (旋转编码器) , an electronic compass, a 3—axis accelerometer and temperature & humidity sensors. The system can provide general information about robots’locations, speed and inclination angle, temperature & humidity data which are helpful for the operators to make decisions on robot behavior control. The camera system consists of motion control and video processing units, and usually is coupled with an ultrasonic sensor to detect the thickness status of pipelines. The motion control unit has a servo motor to adjust the camera’s height and rotation so that all the areas in the pipelines can be scanned by camera. The task of video signal processing is handled by imaging sensors and multimedia application processors which work together to implement video capture , signal conversion and encoding processes. In order to achieve better communication quality and longer distance, the encoded video and control signals are combined into a single signal by a FPGA (现场可编程门阵列) included in the communication system, and then processed by a serializer to produce LVDS (Low Voltage Differential Signal) to be transmitted through twisted-pair cables. If signals have to travel a much longer distance, fiber-optic cables could be a good option as they can cover distances up to several kilometers. As robotics technology develops, future pipeline exploration robots would feature more sophisticated A. I. (Artificial Intelligence), making them capable of “thinking and working” with minimum human intervention.
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【判断题】双闭环直流调速系统由两个调节器分别调节电流和转速,先调整好转速环,再调整电流环。
A.
正确
B.
错误
【单选题】心脏骤停病人的心电图表现最常见的是()。
A.
心室扑动或颤动
B.
心室停顿
C.
室性心动过速
D.
无脉性电活动
【单选题】病人女性,65岁,因“急性广泛前壁心梗”急诊入院,5小时后病人突然心脏骤停。心脏骤停前最常见的心电图表现是
A.
心室扑动或颤动
B.
心室停顿
C.
室性心动过速
D.
无脉性电活动
【判断题】操作变量是由调节机构 ( 阀门、挡板等 ) 改变的流量 ( 或能量 ) ,用以控制被调量的变化。
A.
正确
B.
错误
【判断题】双闭环直流调速系统由两个调节器分别调节电流和转速,先调整好转速环,再调整速度环。
A.
正确
B.
错误
【多选题】有关注射剂灭菌的叙述中错误的是
A.
输液从配制到灭菌的时间以不超过4小时为宜
B.
注射剂在121.5℃需30min才能杀死细菌和芽胞
C.
微生物在中性溶液中耐热性最大,碱性溶液中次之,酸性不利于微生物的发育
D.
能达到灭菌的前提下,可适当降低灭菌温度和缩短灭菌时间
E.
滤过除菌是注射剂生产中最常用的灭菌方法
【单选题】设f(x)是定义在R上的任意函数,则下列叙述正确的是 [     ]
A.
f(x)f(-x)是奇函数
B.
f(x)|f(-x)| 是奇函数
C.
f(x)-f(-x)是偶函数
D.
f(x)+f(-x)是偶函数
【多选题】关于注射剂灭菌的叙述,错误的是
A.
输液从配制到灭菌的时间以不超过4小时为宜
B.
注射剂在121.5℃需30min才能杀死细菌和芽胞
C.
微生物在中性溶液中耐热性最大,碱性溶液中次之,酸性不利于微生物的发育
D.
能达到灭菌的前提下,可适当降低灭菌温度和缩短灭菌时间
E.
滤过除菌是注射剂生产中最常用的灭菌方法
【单选题】对 注射液配制 操作中存在 错 误的是( )。
A.
从配液到灭菌的时间一般不超过 12 小时
B.
浓配法可除去溶解度小的杂质
C.
急需时,可用化学试剂暂时代替注射用原辅料使用
D.
一般小剂量注射液,尽可能不用活性炭
E.
溶解度不大且质量好的药物可用稀配法
【单选题】心脏骤停病人的心电图表现,最常见的是
A.
心室扑动或颤动
B.
心室停顿
C.
室性心动过速
D.
无脉性电活动
E.
心房扑动或颤动
相关题目: