Technical parameters 
 First, the design principles 

 LJD-eWin series of ARM & WindowCE touch one machine to do 32-bit high-speed ARM-based CPU, Windows CE5.0 system as the primary operating system, with built-in modular way as a fixed way, the application of the product design is more simple, fully meet the For small volume of users to install design requirements. 
 LJD-eWin050 Series offers high capacity RAM and electronic drives, high-definition LCD screen with 480X272, and with a high precision touch screen, along with a RS232 serial port, USB HOST and USB DEVICE interface, high-capacity SD card storage, wide voltage and wide power supply work is more suitable for industrial applications. 
 Second, the technological advantage 


 * Software advantages: 
 1, available in Chinese (Simplified and Traditional), English, Japanese and other Windows CE system 
 2, Windows CE system startup less than 10 seconds (domestic only) 
 3, support for SQL CE2.0 database, Compact framework2.0/3.5, MFC 
 4, support for EVC, VS2005 online debugging, 
 5, support for VC + +, Software Programming 
 6, support SD card site to upgrade the system, replace the boot screen (domestic only) 
 7, the system starts, the user memory up to 60MB (domestic only) 
 8, can be a simple switch in the operating system and user interface to switch between (domestic only) 
 9, the watchdog is running can prevent the system crash 
 10, LCD backlight and sound can be adjusted through the parameters 
 11, more than 30 free utility source code 
 12, providing UI design, part of the ICON components free of charge 
 13, provides full-featured SDK and API function code package 
 14, utility software, including: how to read and write through RS232/RS485 parameters, how to store data to SD card, how to curve in LCD display, parameter, screen, backlight and change the slider sound, how to design the background music, alarm sounds. Button design, touch screen operation, etc. 
 * Hardware advantages: 
 1,5.0-inch true color LCD, 26 million colors, 480X272 resolution, LED backlight 
 2, memory 64MB, electronic drives 64M/128M 
 3,1 ~ 2 RS232 
 4, high-speed 400M ARM920T core 
 5, high strength, high-precision resistive touch screen 
 6,1 a USB HOST, 1 个 USB DEVICE to access U disk, keyboard, mouse 
 7,9 V ~ 28V wide voltage input, 12V 230MA current 
 8, the working temperature range: -20 ~ 70 ℃ have been certified through the high and low temperature testing 
 * Other benefits: 
 1, a strong anti-interference ability, rigorous EMC testing, all interfaces are ESD protection device 
 2, to provide all of the onboard peripheral driver library, provides API functions directly drive the hardware 
 3, provide detailed documentation and application examples for various applications 
 4, the motherboard design a sudden power-down without damaging the file system (TFAT file system) 
 5, support local and remote upgrade the operating system upgrade 
 Third, the application 


 Applications Applications Advantage 


 1 

 Industrial control products for industrial field environments, with high reliability, high-speed communication, and interaction is good, easy and flexible programming, real-time characteristics of strong and can be widely used in the production process equipment operation and data processing and display. And compared to the traditional man-machine interface with information processing and network functions, to achieve better human-computer interaction. 



 2 


 Intelligent Power As information technology continues to evolve, more and more perfect power system automation, especially in the power system monitoring and power dispatching automation systems, embedded computer is has been widely used. Power system data volume, requires equipment with high reliability and real-time, embedded touch computer equipment requirements can be a good fit. Compiled by the control program, can achieve data collection, communication, fault diagnosis and alarm can also be used to control various devices, the device can secure the case in the absence of economic and reliable operation. 




 3 



 Medical equipment to medical devices embedded computer system entered a new stage of development - digital medical equipment. Applications in medical devices, embedded computers have played a small size, low power consumption, cost-effective advantage. In the complete hardware and software platform, the product can be a lot of statistics and clinical data processing, but also some typical cases can be analyzed and compared. Widely used in monitoring equipment, ultrasound, X-ray into the video equipment, MRI equipment and a variety of physical treatment, beauty equipment, etc., making the hospital's management more perfect and efficient, while the patient can enjoy faster convenient and user friendly service. 



 4 


 Intelligent transportation equipment, transportation system very demanding environment to the harsh, but the embedded touch the computer environment has a strong ability to adapt and current management capabilities, using a wide single voltage power supply, can be achieved in a complex environment, the power the stability of supply. Product uses a fanless design, housing can eliminate the interference of dust, moisture barrier on the system. System has a wide operating temperature range, stability in harsh work environments. In addition the product placement of electronic components designed to effectively prevent the vibrations make the electronic components off. A sound interface design, strengthened the system's scalability. Car GPS, GPS ship positioning control, testing and so on. 



 5 


 Intelligent instruments compared with traditional instrumentation, the use of embedded computer design of intelligent instruments can achieve the data processing functions that can perform complex calculations, effectively improve the instrument's measurement accuracy. Friendly man-machine dialogue with the ability to use application interface instead of the traditional instrument surface, through the display to the intuitive operation of the instrument, work status, and data processing on the measurement results show that it is more intuitive operation. Programming of the measurement process can be fully automated, auto-zero calibration and fault testing, a better realization of the instrument function. 



 6 


 Other applications in addition to the above application areas outside the touch of embedded computer has a wide range of applications in aerospace, beauty equipment, intelligent home, fitness equipment, books, la carte, GPS tracking, Wifi network, GPRS transmission and Bluetooth systems. Embedded products that touch the computer allows the user to achieve personalized, intelligent, and reduce product development cycle, is the product more competitive, increase the value of the product, resulting in higher economic efficiency. 

 Fourth, common application recommendations 

 Control products in the traditional areas of SCM, you can use LJD-eWin based equipment, data processing and storage, touch screen display aspects of operations, and has obvious advantages, so if and microcontroller with the application, will play a greater in the control system advantage. Devices can be connected through the serial port and microcontroller, the microcontroller in the whole system is mainly responsible for control and sampling, the other by the LJD-eWin products to complete, through LJD-eWin product serial, USB ports and network interface, you can and other device is connected, for example, printers, bar code scanners or other devices connected GPS module to use. Programming Windows CE system product design can be more convenient, practical and make the product more powerful features, the interface is more trendy. 
 Fifth, technical parameters 


 Model LJD - eWin050-M50 LJD - eWin050-B50 
 5.0 inches TFT display TFT (wide temperature range of industrial grade), resolution 480X272 LED backlight 
 High-precision four-wire resistive touch screen, single point of 250 grams Click to 10,000,000 times 
 Processor ARM926T RISC processor S3C2440 400MHZ frequency 
 Electronic drives (FLASH) 128MB 64MB 
 System Memory (SDRAM) 64MB (32-bit bus), the user free space of 61MB (the only technology) 
 RS232 Interface 2 standard (one of which is 5 lines) a standard RS232 
 RS485 interface to a standard RS485 without 
 100M Ethernet network interface without 
 1 stereo output audio interface no 
 USB interface, USB Host, USB D