专业英文术语教材课件单元19

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(David and Sam are discussing ATO system in metro operation. ) David :What does ATO stand for? Sam : It means Automatic Train Operation. David : What is its main function? Sam : Mainly it ensures the normal running and optimizing of train dispatch in stead of TO’s automatic operation, including accelerate smoothly, speed controller and station stopping. David : What is the greatest advantage compared with ATO operation? Sam : It can reduce manful fault. David : Is ATO applied in China? Sam : It is widespread in Hong Kong area, and it isn’t used in mainland. A full-time TO is sent for every train, whose main job is to control the door’s opening and closing.
Subway
The earliest ATO system on a full underground line was on the Barcelona Metro line 2 (now integrated on L5), which ran from 1963 until 1970 on its seven trains. Another one of the earliest examples of ATO was on the Victoria line of the London Underground, opened in 1968. The ATO system performs all functions of the driver except for the opening and closing of the doors. The driver only needs to press two buttons to start the train and, if the way is clear, then the train will automatically proceed to the next station. Many railways are planning to use ATO in the future. It has been partially implemented on the Delhi Metro with plans of full ATO operations by the year 2013. ATO will be introduced on the London Underground’s Northern line in 2011. Although ATO may also be used on the future cross rail and Thames link trains, it has not yet been implemented on any UK mainline railways.
Unit 12 ATO
列车自动运行系统
Unit Aim
You will be able to
• remember some words about ATO. • introduce the composition and profile of ATO system.
Advised Hours
• 4 class hours
New Words and Exprቤተ መጻሕፍቲ ባይዱssions
• ATO Automatic Train Operation n. 列车自动运 行系统 • function [fʌŋkʃən] n. 功能 • optimize [ɔptimaiz] vt. 使最优化 • accelerate [æk5seləreit] vt. 使增速 • smoothly [smu:ðli] ad. 平滑地;流畅地 • fault [fɔ:lt] n. 过失，失误 • widespread [waidspred] a. 广泛的，普及的
Schematic of the brake control used on the ATO system for station stopping
The function of ATO • 1. The amplifier function is signal amplification. • 2. The 20 kHz filter function is Clutter filter. • 3. The train speed binary counter function is record train speed and converted to binary. • 4. What’s the role of ATO? Achieve unmanned • 5. Is the ATO almighty up? NO
Subway
Automatic train operation (ATO) ensures partial or complete automatic train piloting and driverless functions. Most systems elect to maintain a driver (train operator) to mitigate risks associated with failures or emergencies. Many modern systems are linked with Automatic Train Control (ATC) where normal signaler operations such as route setting and train regulation are carried out by the system. The ATO and ATC systems will work together to maintain a train within a defined tolerance of its timetable. The combined system will marginally adjust operating parameters such as the ratio of power to coast when moving and station dwell time, in order to bring a train back to the timetable slot defined for it.