I. System Overview 

 The security of the elevator system is an important part of the entire building security. In this system, all cardholders use the elevators must be authorized after the system administrator. Use the elevator, different people have different permissions assigned, each entered the elevator is authorized to enter the designated area or floor, and authorization management according to the schedule. Unauthorized, can not enter the floor of the management area, and floor time period control. The elevator controller can run offline, but also on-line control. Elevator personnel access to records are stored in the elevator controller, and then 485 bus or TCP / IP network reached the computer. The elevator controller can store 100,000 out of the records, so even in the case of offline operation, the elevator controller can also store large amounts of access to records, to ensure that records are not lost. 

 The actual use of employees before the reader in the elevator card reader in order to press the corresponding button on the floor, to reach the specified layer. Through the use of the elevator system, which can effectively building security management. 



 Second, the system components 

 By the elevator control management software, the composition of the elevator controller, elevator expansion module, the door-side controllers, card readers and 485 converters and so on. 

 1. SKPS-AS elevator control management software. Permissions to add personnel information, issuing, managing elevator controller and modify the parameters of the elevator controller, set the time zone hours, set out of the floor, and real-time monitoring and query personnel out of the situation. 

 2 SK800L elevator controller. It is the core of the elevator control system. Each SK800L elevator controller can manage up to 128 layers in a lift. 485 communication interface and 100M network interface. Can pen out of the record store 100 000 100 000 cards. SK800L elevator controller with 8 relay outputs and 8 TTL outputs, and therefore have direct control over the 16th floor elevators. By increasing the lift of SK8I / O expansion modules can be controlled more floors. SK800L elevator controller with 16 TTL inputs can be used for linkage with visitor intercom system. 

 3 elevator SK8I / O expansion modules. When the elevator floor more than 16 layers, the need to increase SK8I / O elevator expansion module, in order to control more floors. SK8I / O elevator expansion module with 8-channel relay output, and thus each expansion module can control eight layers. Each SK800L elevator controller can be connected through 485 the 16 SK8I / O elevator extension module. With an 8-channel TTL input, can be used for interaction with visitor intercom system. 

 4. The SKDC door-side controller. Used to connect the card reader, and then by the 485 bus is connected to the with SK800L elevator controller. 

 5 reader. Usually optional 485 card reader credit card for the elevator. Taking into account the elevator memory in the large electromagnetic interference, 485 reader with SKDC The communication baud rate should be set at 4800bps. In order to facilitate the construction and installation, the choice of the reader module, so that can be embedded into the elevator panel. 

 6.485 converter. 485 bus communication SK800L elevator controller and computer, you need a 485 on the computer side converter. SK800L elevator controller can be directly through the LAN and computer communications. 

 7 TTL converter. SK800L 8 Road TTL signal used to relay output signal. Each converter can convert the TTL signal of the 4-way relay signal. 



 Third, the system network diagram 

 The network diagram shows how Bostex elevator control management system connected with the elevator control cabinet boxes, as well as visitors intercom system. 



 (Click picture to enlarge) 


 Fourth, the implementation of the program 

 Management host settings in the Control Center, install the elevator control management software. Elevator controller, elevator expansion module, the door-side controller and TTL converter installed in a metal box placed next to the elevator at the top of the elevator control cabinet for easy wiring. 485 reader installed in the car inside the gate-side controller to the card reader to pull a shielded the UTP RVSP2x0.75mm2, and 485 between them. The reader power supply is installed at the top of the box sedan. The elevator controller via a standard RJ45 interface to access the LAN. 


 Fifth, the workflow 

 Cardholder to enter the elevator. Need credit card, and then you can press the button of the corresponding floor. For example: a cardholder has 7,8,9-entry permission, when his credit card, floor 7, 8 or 9 button; If there is no credit card, all the floor buttons do not work. 

 When the cardholder credit card, the elevator controller corresponds to the 7,8,9-output relay, respectively, to output three short signal to the elevator cabinet, lift cabinet received three short signals, the activation 7,8,9-layer floor buttons (other floor button in the "sleep" state), then the cardholder press to go to the floor buttons, such as Layer 7, the elevator starts to reach the 7th floor (elevator cabinet should stay out of the terminals for extended dry contact output module signal) to receive SK800L elevator controller and elevator. 

 When the elevator car box can be set to a key switch set to "Automatic" and "reader", when the key switch is in "automatic" do not have credit card can also enter any floor when the elevator work in non-security state. equivalent to the general elevator; when the key switch in the "reader", elevator, security state, the necessary credit card in order to press the floor button, go to designated floors. 

 4 visitors linkage. First visitors call households, when households over the phone or through the video to confirm as a visitor, press the Enter key, the visitor intercom device outputs a corresponding to the household a dry signal to the elevator control system. The elevator control system outputs a dry contact signal to the elevator so that the elevator is automatically run to the bottom. Once the elevator reaches the bottom of the elevator control system to activate the button of the household corresponding to the floor (other floor button in the "sleep" state). Then visitors entered the elevator,