Design Of Embedded Screen Display System Based On ARM

The quality of elevator is one of the symbols of national technology level and people’s living standard.The traditional elevator focuses on the electrical characteristics and mechanical characteristics,emphasizes the safety of elevators.Now the elevator manufacturer not only pursues on the safety,but also emphasizes on the humanization design and comfortable experience.As an important part of the elevator,the display system has some problems,such as simple equipment,single function,and unbalance between screen display system and security.Thus,this paper proposes an embedded elevator screen display system design based on ARM.1)In order to meet the demand of real-time multimedia information processing and communication controlling,this paper constructs a hardware platform of elevator multimedia display system with dual core embedded system.Dual-core embedded system LPC11C14 and N32903 all based on ARM,the N32903 mainly realize the fast decoding of multimedia information processing and real-time display drive controlling.The main functions include the use of static images to realize the display of running status and elevator floor,the dynamic shutter image is using to realize the dynamic display of the elevator advertising,which will processes different multimedia for different floor;Besides,the LPC11C14 is used to complete the communication control between the embedded elevator screen display system and the elevator control cabinet.Embedded dual system has a clear division of responsibilities,effectively improve the operation efficiency of the elevator multimedia display system.2)On the basis of realizing the elevator multimedia display,based on Zigbee wireless sensor technology,this paper proposed to build the elevator wireless sensor monitoring the environment of elevator.The LPC11C14 as sensor network gateway in the system,which completed the elevator environment monitoring data.Using the monitoring system,realizing the elevator multimedia and the environmental parameters of the elevator display at the same time.Which providing a safety monitoring for users and the elevator management.The embedded display system design using multimedia screen scheme solves the traditional elevator problems of the single function of display system,the poor ability of multimedia processing.Meanwhile using the wireless sensor network to achieve the combination of elevator multimedia and safety monitoring display.The test shows that the embedded multimedia display system design is reasonable,stable,maintainable.The design of the elevator monitoring environment parameters display scheme has strong feasibility,achieved the effect of design.