Summary With the development of railway technology ， train speed and its carrying capacity hvae great increased ，High requirement of safeguarding of train movement is proposed in order to ensure train safety and its open and There are many technologial means of ensuring normal train movement， among which ，track circuit is one of the most important （1**）， ZPW-2000 ，as a non-insulation frequency shift automatic block system ，is by far the most advanced non- insulation automatic block one （2** It will exert role in technique development policy in our railway where cab signaling is proposed as the main running HeFei- NanJing High-speed Railway is an important part of our country' s expressway net which is the first passenger rail line in our country This paper mainly and systematically demonstrates composition and principle of ZPW- 2000 non-insulation track circuit system and simply explains the knowledge about (a) (3**)equipment layout of each equipment cabinet in region， (b) zero-layer wire running and so on This design is based on the design specifications in railway signalling together with the specific circumstance of MaChang railway Automatic block and the turnout N18 are used in the station to meet the requirement of picking up train speed The aim of this engineer design is ，by studying and then mastering AUTO CAD ， to (A)(4**)accomplish the engineering drawing of MaChang station in HeFei- NanJing line， including (a) the layout drawing of station and railway section signals ，(b)indoor equipment layout ，(c)track circuit diagram of the station and the railway section ，(d)signal display and coding order schedule， and (e) layout and wiring diagrams to each equipment cabinet，and to（B) (5**)be able to master (a)how to change the collection of the directional relay in station and train section，(b)driver design，and (c) how to make a calculation and configuration of the compensation capacitor In this paper， we first introduce the development situation and research significance of frequency shift automatic block at home and abroad ;secondly expound the engineering design from the whole to the local combining with the design drawing， and determine the overall design program combining with the layout plan of the station and train section ; then make a general layout of the whole indoor equipments ; and then design the structure and function of the track circuit in train sections and instation ; and finally give a simple explanation of wiring layout of each equipment 注释：（1** ----5**）是语法结构的联系（有省略，有指代词，有并列等）， （a， b， c， d )，等是并列语法成分的联系符号，如果能够看懂，就把这些所有括号内的字母或数字符号去掉不看而直接根据原文的结构正确理解即可，即完全不需要上述的提示。
Transportation security thinkingPick to: analysis of the existing railway container transportation empty containers sent back to the way NiBao container fall off， the name of commodity， container loading the partial load and lay particular stress on the safety problems， carry out from strengthening container transportation load and solid， strict inspection standards， reasonable system set equipped with solutions， balanced load， the bottom corner a LaSuo container in place， make full use of security equipment by the science and technology to ensure the security of container transportation safety Container transportation， easy for packaging with save mechanical operation， and pleasant to do a variety of transportation manner， without flip on goods， and other features， is the current goods transport development China's railway since l carried out in 955 since container transportation， after more than half a century of wind and rain process， there is tremendous In this period， from a box on look for: has the 5 t， 1 t， 5 t， 10 t international standard of general container evolved to the current development of 20 '， 40 'international standard general container， and at the same time also developed test bench box， board planes box， refrigerated containers and tank box， dry bulk boxes and other special cargo container， the economic efficiency and the social efficiency is very Now， along with the rapid development of our country's economic construction， railway container transportation will was in for a high-speed development of the new period， container traffic volume growth will container transport safety management and the new demands and In recent years， due to the leaders at various levels attention， container for standing management proper， railway container transportation safety basically But container super partial load， lay particular stress on， NiBao commodity and other security hidden danger to happen from time to tome， attention must be， find the best solution and
Thinking of the Transportation SecurityAbstract: Analysis railway container transport empty containers back to send his way off， anonymous report name of the container cargo， container loading super partial load and emphasis， such as security issues， proposed to strengthen the container transport load consolidation， strict inspection standards， and reasonable to develop the program equipped with balanced load， the bottom of the container corner pieces of the latch in place， make full use of security equipment to ensure that the container transport security technology to ensure safety Container transport saving packaging， to facilitate mechanized operations， applicable to dry a variety of modes of transport， the way no need to flip goods， the current direction of development of the transport of China's railways since the l 955 years to carry out container transport， more than half a century of ups and downs， has been developed by leaps and During this period， from the handling of box point of view: has 5 t， 1 t， 5 t， 10 t of non-international standard， general-purpose container gradually evolve to the current 20 feet， 40 feet international standard general purpose container， but also the development of a bench box， plate rack containers， refrigerated containers， tank containers， dry bulk boxes and other special cargo container， and its economic and social benefits are very With the rapid development of China's economic construction， railway container transport will usher in a rapid development of a new period of container traffic safety management of the rapid growth of container transport will put forward new demands and In recent years， leaders at all levels attach importance to and properly managed， container freight stations， railway container transportation is basically Container but the ultra-eccentric load， emphasizing the anonymous report the name and other security risks occur， must pay close attention to seek the best solutions and
