中英文对照外文翻译
(文档含英文原文和中文翻译)
外文文献：
Automatic door and its control system introduction
Product of human civilization, automatic doors have been dozens of years of  development, so far, through the application of PLC control system and other tec hnology products, already have and its control technology, formed the large scale auto matic door of the family. And according to different requirements, formulated a series of standards. People's Republic of China in the 2005-12-01 standard of China automat ic door number, standard content mainly include: rules for building the classification o f the various kinds of automatic door, specifications, codes, materials, requirements, t est methods, inspection rules and signs, packaging, transport and storage. This standar d applies to push-pull automatic door automatic doors (arc), fold the flat open automat ic doors, automatic doors, revolving doors. You may refer to other automatic door. Ha
ve special requirements of automatic doors, still should see its related standards.Door and human civiliz
ation is a twin, it is accompanied by the development of human civil ization and chatter. For thousands of years, the door has been as the patron saint of the  human society activities, intruder in the room, and as a channel of human social activ ities, carrying the door and civilization, pursuing people to yearn for the glory of the o ther shore.Human desire is endless to civilization. From ancient Egypt to Roman to to day's modern society, can see the door move.Past, passive isolation barrier function of  the door is, and the channel role is to ensure that only traffic.Today in the 21st centur y, the door even more highlighted safety concept, emphasizes the effectiveness: effecti vely prevent, passage, evacuation, and also highlights the concept of architectural art, door and building and the surrounding environment coordination, the harmonious wh ole.
Door advanced forms of automatic door originated in Europe and the United Stat es, in August 1802, the German standard company successfully designed and develop ed the world's first sensing automatic doors, door large-scale specialized production b egan in the 150 years ago, in the process of constant development and perfection, eme rged a large number of scale of professional manufacturers. Rapid development to tod ay, has formed a complete kinds, function perfect, workmanship fineautomatic door of  the family.China as early as more than a decade ago began torefer to the automatic do ors, and apply it in the hotel, airport, shopping centers, Banks, office buildin
gs and ot her large and medium-sized public places, for these buildings added bright beautiful, c hic, colorful.Automatic door according to the different use function and can be divide d into automatic sliding door, automatic door, automatic revolving door, automatic arc  door, automatic folding door, etc., including flat door with fewer occasions, revolving  door due to the expensive and very big, only commonly used in high-grade hotels, in need automatic sliding door is most widely used, people generally say automatic door, automatic induction door is sliding door.Automatic sliding door is the most common form of automatic door machine add radar on both inner side and outside of the door, automatic door when the man came near, the radar by emitting microwave induction t o man's existence, open the door to the controller a signal, the controller through the d
rive to open the door. When the man by the door, and then closed the door.Another for m of infrared sensor, mainly through the infrared to feel the temperature changes with in the specified range, when people walk into, microwave induction the emission sign al control changes in the door.
Microwave sensors and infrared sensors difference is mainly: microwave sensor, also known as microwave radar, reaction to the movement of the object, and reaction speed, suitable for walking speed normal personnel through the place, its characteristi c is that once the door near the staff don't want to go out and motionless, radar will no longer response, automatic door will be closed, likely clam
ping phenomenon. Infrared  sensors, exist in response to the object, regardless of whether or not mobile staff, as l ong as in sensor scanning range, it will respond. Reaction speed is slower than the mic rowave sensor of infrared sensors.
According to different requirements of some, some manufacturers in the producti on of automatic doors can increase some personal function, facilitate the management and maintenance. Such as fuzhou blue electronic co., LTD., automatic door, it has the following characteristics: 1, automatic door sensors react to the movement of objects i n microwave, sensitivity is adjustable, stable performance! 2, automatic encryption ga ther multi-function remote control into an organic whole, the induction door for encry ption, can avoid the project appears on the welsh, bad debts, etc. Phenomenon, thus ef fectively protect the interests of dealers, at the same time, can realize the remote contr ol to open the door, always open, lock, unlock; Has connected to the card reader, finge rprint, home button, peripheral devices, such as electric lock functions. 3, safety light can effectively overcome the blind area ofinductive probe sensor is less than, so that t he induction door safer. 4, self-help bank card slot machine overall design, ABS electr oplating shell durable and convenient to install, can match any bank ATM card, no car d capacity limits, imported alloy head, super wear-resistant high sensitivity, high (400 ) or low resistance (300) Oe file can be used; Is suitable for the self-service bank. Mic rowave mo
dule 5, automatic door, kicking medallion, ID card password, remote trans ceiver module, electric car alarm, telescopic doors, electronic display screen, motorcy cle alarm.
PLC (Programmable Controller, hereinafter referred to as PLC). PLC is in the or der of the traditional controller is introduced on the basis of microelectronics technolo gy, computer technology, automatic control technology and communication technolog y to form a new generation of industrial control device, the purpose is to replace relay, execute the sequence control function such as logic, timing, counting, establish flexib le SPC system. Programmable controller has the strong ability, high reliability, flexibl e configuration, simple programming, etc, is a major means of contemporary industria l production automation and automation control equipment. Due to the advantages of PLC in automatic control, thus is widely quoted in the automatic door system.
Due to the PLC in the development, therefore, for the exact definition is more dif ficult. American electrical manufacturers association (NEMA) after four years of rese arch work, in 1980, officially named Programmable Controller PC (Programmable Co ntroller), but a Personal Computer PC (Personal Computer) in order to distinguish, oft en referred to as PLC Programmable Controller, and makes a definition for PLC, Prog rammable Controller is a kind of with instruction memory and digital or analog input/ output interface, with an operation is given priority to, can finish the logic, sequence, t i
ming, counting and arithmetic, and other functions, is used to control the machine or the production process automation control device.
In 1985 a second draft, and in 1987 the third draft of PLC in the following definit ion: "a PLC is a digital operation of the electronic system, designed for industrial envi ronment application and design. It USES a program memory, used in its internal stora ge implementation logic operation, sequence operation, timing, counting and arithmeti c operation instruction, and can through digital or analog input and output, control var ious types of machinery or production process. Programmable controller and related p eripheral equipment, should be in accordance with the easily and industrial control sys tem as a whole, easy to expand its function design principles.Above shows that the de finition of PLC is a kind of can be directly applied to the industrial environment of the  digital electronic devices, is based on microprocessor, combined with computer techn ology, automatic control technology and communication technology, in process contro l and the user's "natural language" programming of a simple, convenient operation, hi
gh reliability of a new generation of general industrial control device.
2.The main functions of the PLC
(1) the switch control logic and order
This is the most widely PLC application, the basic situation. Its main function is  to complete switch logic and sequential logic control, and thus can realize various co ntrol requirements.
(2) the simulation control (A/D and D/A control)
Many continuous variation in the process of industrial production, the need to c ontrol the physical quantities, such as temperature, pressure, flow, level, etc., these all belong to analog. Longer than in the past, the PLC logic control, analog control mainl y by instrument or distributed control system, PLC products possess much now dealin
g with this kind of analog functions, and programming and easy to use.
(3) the timing/counting control
PLC has a strong timing and counting functions, it can provide users with dozen s or even hundreds of timers and counters. For the timer, timer interval can be set by t he user; To counter, if need to count of high frequency signal, can choose high speed c ounter.
(4) the stepper control
PLC provides users with a certain number of shift register, use shift register can  easily finish stepping control function.
(5) motion control
In the mechanical processing industry, programmable controller and the comput er numerical control (CNC) integrated together, to complete machine tool motion cont rol.
(6) data processing
Most PLC has a different degree of the data processing ability, it not only can p erform arithmetic operations, data transmission, but also for data comparison, datacon version, data shows the print operation, also can undertake some PLC floating point ar ithmetic, and functional operation.
(7) communication network
controller翻译中文

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