In the field of entrance and exit control, the "double people double lock" system is the crystallization of wisdom in the industry. It refers to the double lock in the specific area. Each people keeps a key respectively, and the lock can only be opened when both of them are present, thus it plays a role of mutual supervision.
At present, for some high confidentiality management, it usually set up the security door or identity identifier in the entrance of secret area. So when the authorized personnel for common management are present, they can go in the secret area through their identification card, the entering password or verification. but it exists some defects for the existence way : it is unable to determine whether the authorization management by verifying real enter the controlled area;It is impossible to guarantee from the technical means whether some management personnel allowed the unauthorized personnel to enter on their behalf ; and there is no technical guarantee that unauthorized persons are following in.
Due to the disadvantages of the objective existence, it has been unable to meet the current management requirements of access to various high-level confidential areas, therefore with United Nations Nuclear Security Technology Center we successfully developed the common in & out door, which can realize the control for the condominium authorized personnel in and out in high secrecy area, the verification for condominium authorization number and identity, ensuring the safety of the controlled area.
As a kind of safe and reliable equipment to enter the high level confidential area, the equipment has successfully solved the problems in this field at home and abroad, and has obtained the national invention patent.The gate has been applied in the field of nuclear power and has been widely praised.
