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中英文对照外文翻译
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文档含英文原文和中文翻译
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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
and human civilization 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 desire is endless to civilization. From ancient Egypt to Roman to to
day's modern society, can see the door , passive isolation barrier function of
the door is, and the channel role is to ensure that only 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 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 buildings and ot
her large and medium-sized public places, for these buildings added bright beautiful, c
hic, tic 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 tic 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 r 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 clamping 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 module 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
iming, 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:
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 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
gh reliability of a new generation of general industrial control device.
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
PLC has the function of communication network, it makes PLC and between P
LC and upper computer, PLC and other intelligence to exchange information between
devices, form a unified whole, realize the centralized control.
PLC can so rapid development, in addition to the objective demand of the indus
trial automation, has many unique advantages. It well solved in the field of industrial
control widely concern about the reliable, safe, flexible, convenient, economic and oth
er issues. Its main features are as follows:
(1) high reliability
Reliability refers to the average trouble-free working time programmable contro
ller. Due to the programmable controller has adopted a series of hardware and softwar
e anti-interference measures, strong anti- interference ability, MTBF reaching tens of t
housands of hours, can be directly applied to industrial production field have a strong
interference. Programmable controller is the masses of users recognized to be one of t
he most reliable industrial control equipment.
(2) control function is strong
A small programmable controller with hundreds of thousands of programming e
lements available for users to use, can achieve very complicated control function. Co
mpared with the same function of relay system, it has the very high cost performance.
Programmable controller can be through the communication network, realizes the dec
entralized control and centralized management.
(3) the user easy to use
Programmable controller products have been standardization, seriation, modula
rization, equipped with a wide range of various hardware devices for user selection, u
sers can conveniently flexible system configuration, system composed of different fun
ctions, different scale. Programmable controller would be very convenient for the inst
allation of wiring, strong load capacity, can direct drive general solenoid valve and ac
contactor. The hardware configuration is determined, you can change the user progra
m, convenient to quickly adapt to changes in process conditions.
(4) programming convenient, simpleLadder diagram is a programmable controlle
r is the most used programming language, the symbol, expression way and the relay ci
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