Access control system basic knowledge

Access control system basic knowledge
Access control system (Access Control System), also known as the entrance management system, it is a new thing in recent years China has just developed
Security, belonging to the scope. With the development of society, the progress of science and technology, improve efficiency, people's living standard has been improved, of course of life
Quality also have higher requirements, how to effectively control the personnel's entry into a new subject; especially in the important safety demand area bank, the jail
The domain of import is the need for automation management, access control system thus emerge as the times require. In addition, it can and parking, patrol, attendance, consumption and other departments
The combination, form the new concept of "intelligent management card"
Basic knowledge of access control
Contains what 1, access control system? Approximately can be divided into 3 parts
1), the control host: responsible for receiving signals and identify the signal, for opening and closing or alarm action
2), lock: lock the door body, unless the power off or power, otherwise the normal operation conditions should not automatically open the door
3), other accessories: button, power supply, alarm input and output devices... Etc.
4), the control software (in simple applications, some control inside the host directly embedded control software)
2, how to identify the identity of the access control entry?
In the access control system identification are mainly in two ways:
1), biological identification method: use special mark and owned as identification signs, such as palmprint, fingerprint, face
2), external mark identification: the special mark of external objects as identifying signs, such as passwords, induction card, IC card etc.
3, what is the "power" (open the door close to send electricity) (Fail-Secure)?
The normal closed cases, the lock body is not energized, and show "locked" state, through the control device external (example: access controller) to
The lock is energized, the internal body of the action, and the "open" state, such as cathode lock.
4, what is "open" (power transmission close) (Fail -Safe)?
The normal closed case, a lock body electrified constantly, showing "locked" state, through the control device external (example: access controller) to
The lock off, internal body of the action, and the "open" state, such as magnetic lock.
5, open the door a power outage does not open?
With the battery or UPS power system, usually battery can provide 3~6 hours of power, while the UPS may last for several days. A
Like domestic commonly used way to connect power door lock, mainly in order to comply with fire safety requirements. Access management system, the company can be installed
When selecting the power to open the door or power failure shut
6, the power to open the door "? Or "off the door"?
Basically, this is a different question: "open the door" power: suitable for fire protection regulations, mostly fire are wire walking
Fire, fire heat can make the hardware lock parts to melt and unable to open the door to escape, so many people in the fire escape door cannot be opened due to buried
The fires, power door is good, once the electrical fire caused power outages, smoke will move from channel, smoke spread, people can also be
In order to easily open the door to escape. "Behind closed doors" power: access control occasions is suitable for the Treasury, and other property insurance is higher, at this time we can use electronic
Mechanical locks and lock core using the cathode together, once people are in danger, still can use knob or key to open the door.
7, suppose I want to install the electric control lock, the attention to what?
Direction: one-way (inward? Outward? ), bidirectional, translation?
Material: metal (aluminum alloy, stainless steel), wood, glass door (with or without door frames, door has no frame? )
Spacing: door to door frame spacing, when opening and closing the door door will card to the door?
Size: the size of the door?
Quantity: single or double fan, fan?
Use: fire door? Warehouse door? Channel gate?
Special: if there are no special requirements? The door position signal output? Time delay?
8, what is the residual magnetism?
In simple terms, is a lock body in power still residual magnetic, causing the lock body still adsorption and can not open the door, this is a very dangerous thing, once
This event occurs (such as: fire... ..) are caused by smoke door cannot be closed or escape door cannot be opened... !!! a simple residual magnetic defects,
It caused loss of life and property, it is very dangerous problem.