Tuesday, December 14, 2010

【 Weak current College 】 automatic door system configuration 】


Automatic door system configuration is based on usage requirements and equipped with the automatic valve controller connected to the external auxiliary control equipment, such as open source, access control systems, security devices, centralized control, etc.     Must be based on the characteristics of the building, through the composition of the staff, building automatic control system requirements, and other reasonable equipped with auxiliary control equipment. Automatic door installation companies have the responsibility to the user system requirements on the basis of full knowledge, can provide users with reasonable and economical system for the configuration scenario. 1. open the door signal
Automatic door-door signal is contact signal. Microwave radar and infrared sensors are commonly used two types of signal sources. Microwave radar is on object displacement response and reaction speed, applicable to travel speed normal persons through the site. It is characterized by once the door near the staff didn't want to go out and stationary, radar will no longer response, automatic door closes door machine has a protective effect. Infrared sensor for object exists for response, regardless of whether or not, as long as people move in a sensor scan range, it will respond that outgoing contact signal. The disadvantage is that the reaction of the IR sensor is slow for a slow access of personnel. In addition, if the automatic valve to accept contact signal for too long, the controller will think the signal input system encountered obstacles. And automatic sliding doors if kept open too long, it will produce electrical parts.
Because microwave radar and infrared sensor does not understand a person close to the automatic door to door really, some situations are more willing to use a key switch. Press the switch could be a contact-type buttons, more convenient is the so-called toggle switch. Toggle switch is very durable, and in particular it can be used to manipulate the elbows, avoid contact with the hands. There are also so-called foot switch, function, but the requirements of the waterproofing is high, and the power of the pedals are great, easy to make the foot switch failure. There is a belt-contact switch handle, when the handle is pushed (or in the opposite direction La) in place, the door provides contact signal.
Now the building automation can sometimes raise special requirements, such as using the telephone in a line control to open the door. To accommodate this requirement, as long as the guarantee that the signal is passive contact signal. Very few cases, people will move wireless remote control requirements. Use a wireless receiver and automatic doors-contact-type connections, and then with a wireless transmitter that can meet the requirements. Now, however, too many of the radio source, easily lead to accidental door is a troublesome problem.
Timer can automatically control the status of the doors, the principle is the clock with particular switch circuit connected to the pre-set time will the automatic valve is at the automatic opening or lock status. 2. access control system and non-public area of automatic doors
If the automatic doors of performance and the highest quality requirements are very high in frequency of use of the large public areas, automatic doors and automatic control function in the most demanding selection to and from the staff of the non-public area. Access control system is getting authorization identification, recognition or measurement entry authorization by then, the automatic door control system provide the door signal. Before providing the door signal, automatic door must be in a locked state. Access control system from the most simple key switches, locks, magnetic card lock, all the way up to complex weight recognition system, fingerprint recognition systems.    But no matter how complex the system, ultimately to provide automatic door door contact signal. Signal circuit ofshielding to avoid unrelated to signal interference and miss the door happens is important. 3. on request of automatic door is unlocked the door movement and movement coordination.
Applied to an automatic sliding door lock lock belt of electromagnetic lock and lock the door body hanging pieces of two electric lock. The latter is used for heavy duty automatic sliding doors. Automatic electronic lock door with electromagnetic valve suction, electronic locksets and electronic door opener.    Electronic door lock is also known as yin, forcing the direction does not affect the doors open action, is not easy to misuse occurs. There is a belt-contact switches, mechanical lock that locks and switch combination lock is unlocked state contacts cannot be contacted, is not likely to misuse. 4. centralized control
Centralized control of concepts including centrally monitor automatic door running and centralized operations more automatic door two meanings. Centrally monitor automatic door door closed state can position signal output circuit. You can contact switch, when the door reaches a certain location (such as open position), touch switches and gives contact signal. You can also use inductive signal generator, when sensors detect door is in a position to signal. In the central control room to set the appropriate indicator, you can display the status of the automatic doors. And centralized operations usually refers to the multiple door open or locked, depending on the automatic valve controllers have no appropriate terminal block.
Automatic doors in the entire building investment ratio despite the very small, but in the building of daily use and management in occupies a very important position, is building intelligent level important indicators. From construction, automatic doors are more complex and comprehensive, it and external decoration, interior decoration, the strong electricity, weak electricity system, building automatic control, even the fire protection system. More importantly, automatic doors installed usually is in the entire building decoration of late, if the project coordination, may affect the overall project duration. Because the countries on the automatic valve product quality, safety, energy efficiency, noise, construction quality, after-sales service has not been harmonized standards, all national construction College does not have an associated professional or courses, or authoritative advice, automatic door market management is still in the State of disorder. With the development of domestic construction industry, this situation will change.
Automatic doors industry in the world of development is very fast. Development of direction on the one hand, the function control of the program and status display of digital, to develop more functionality provides possibilities. On the other hand is the structure of the door and the door design and manufacturing of modified to adapt to the different architectural styles.

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