I. Requirement description
Touch control display
The 19-inch touch screen is required, and the display area is planned in three parts:
1, LOGO and text part: LOGO picture and text content can be customized (LOGO picture format and font format, color, etc.). The LOGO is on the top and the text is on the bottom. The LOGO picture and text are modified through the platform.
2. Video surveillance display part: in the lower left corner of the screen, the surveillance video images inside the outdoor cargo elevator are mainly displayed.
3, elevator control part: in the lower right corner of the screen, mainly floor display and elevator control. Floor shows the floor where the elevator stops; Elevator control master by the elevator floor hall button, 1st floor staff to delivery to the second floor, for example, researchers at 1 / f, press the "layer 2" button on the screen, the elevator stops when the door is open car, 1 / f, delivery personnel will the goods into the elevator, personnel out of the elevator (shipment can not be load), according to the "close" button again, the elevator on the cargo to the second floor and open the door.
second, alternative design
The system architecture of the scheme is mainly composed of two parts: visual intercom and video surveillance:
System Architecture diagram
1) Visual intercom
The general number of freight elevators is not great, each floor of the elevator door deployment of a full digital visual intercom door machine, duty room deployment of 1 indoor extension. Each floor of the visual intercom door machine can call the indoor extension of the duty room. Visual intercom door machines and indoor machines can be transmitted through Ethernet communication.
2) Video surveillance
Video surveillance is mainly implemented by deploying an elevator surveillance hemispheric camera inside the car. The elevator channel is transmitted through a wireless bridge and connected to the Ethernet, and the surveillance video is stored in the back-end NVR.
Considering the supervision and use of the elevator, the video intercom room extension can view the elevator surveillance video images as needed.
3. Business process design
The business process
Freight personnel elevator door through the video intercom door machine call elevator control center, elevator control center duty personnel through the indoor extension to answer the elevator call, while the duty personnel through the indoor extension to view the elevator car monitoring, if the elevator is idle through the elevator control system to control the elevator door transport goods; if the elevator is transporting goods, it will be informed by video intercom that the elevator is transporting goods and needs to wait. When the freight elevator is idle, the elevator will be controlled to dock at the calling floor and carry out freight.