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EIP Solution for Multimedia Player and Information Monitoring System on Trains

System Introduction

With the rapid development of global information technology, people expect that they can have easy access to any form of information wherever they are. For example, a train in a certain Southeast Asian country adopts a multimedia player system with MEC-5003 as its main control unit. Despite the high speed at which the train is running, the system can play movies and music, as well as real-time monitor the speed, station information, indoor and outdoor temperatures of the train. Also integrated is an information monitoring system. Each compartment of the train is equipped with two video cameras, one at the front and one at the rear, to real-time acquire video data from the train. The system can also ensure appropriate train scheduling and curb crimes on trains.

System Principles

The system consists of an embedded industrial PC (MEC-5003, serving as the main control unit), an information monitoring system and multimedia player terminals. The industrial PC collects all the acquired data, stores and processes them on a real-time basis. The multimedia player terminals display and release various kinds of multimedia information, and at the same time the industrial PC sends the real-time acquired data to the server for storage.

With this system, passengers can enjoy various music or video programs in the train, and have access to train timetable, travel conditions, interior and exterior conditions, notices, name of next station, etc. To receive sound of programs, passengers only need to plug the earphone into the jack.

By integrating the information monitoring system and using video acquisition module and environmental condition acquisition module, the real-time acquisition of passenger information, train running conditions and safety-related data can be achieved. All these data and information can provide strong evidence or clues for train staff to handle emergencies and improve passenger services.

Block Diagram

System Configuration

Dimensions of MEC-5003: 270mm (D) x 200mm (W) x 88mm (H)
CPU: Onboard Intel Core L2400（optional Celeron-M 440 and T2500 adopts Socket 479）
Memory: Onboard memory 512MB（optional 1GB）
Storage: Standard configuration 80G SATA HDD, 1 x CF Card port
I/O configuration:
Video port: 1 x VGA port, 1 x LVDS port (not routed out of chassis), 1 x DVI port
Keyboard/mouse port: 1 x PS/2
COM port: 6 x RS-232, among which COM1 and COM2 support RS-232/422/485, COM1~4 support optoelectronic isolation, 6 x USB2.0 port（2 of them are front-accessible）
LAN port: 2 x 10M/100Mbps RJ45 connector
Expansion Bus:
1 x PCI BUS expansion slot or 1 x PCI-E x4 expansion slot, 1 x PC/104-Plus Bus port
Digital I/O: 8-channel input＋8-channel output, optoelectronic isolation optional

System Evaluation:

In the application of multimedia player and information monitoring system, high quality video player and video acquisition & processing require high performance CPU processing capability. When Pentium-M level device is used for both video and data processing, the CPU utilization reaches 90%, so that video quality and the prompt processing and storing of the information can not be ensured. EVOC’s MEC-5003 is just released to address this problem. A fanless embedded industrial PC accompanied with Core Duo CPU T2500, MEC-5003 has a CPU utilization of around 45% when operating at full load, guaranteeing video quality, prompt playing and storing of the image information acquired.

In addition, MEC-5003 provides multiple I/Os and expansion ports supporting connection among different modules, meeting the need of applications for more expansions. Furthermore, its fully-sealed and fanless design, dust and vibration resistance make the industrial PC even more suitable for dynamical environment of high-speed trains.

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