Intelligent entrance guard control system with wireless ad hoc network function and control method thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG UNIV
- Publication Date
- 2014-04-16
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to an intelligent access control system and method with wireless ad hoc network function. Background technique
[0002] The traditional access control system is composed of access controller, card reader and access control system management software. The following problems generally exist:
[0003] 1. Access controllers generally use a single RS485 interface
[0004] At present, access controllers on the domestic market generally use RS485 interface for networking. This method has the following common problems:
[0005] 1) The access controller uses RS485 for networking, which requires a lot of engineering wiring, and the construction is also difficult.
[0006] 2) RS485 uses half-duplex communication, which has low communication efficiency, poor anti-interference ability, and poor load capacity. If there are a large number of access controllers, additional repeaters are required for relaying.
[0007] 3) Poor security perform...