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, embedded in a simple way as a fixed installation, the application of the product design is more simple, more powerful functions, run faster. 

 LJD-eWin7000 Series offers high capacity RAM and electronic drives, high-definition LCD screen with 800X480, and with a high precision touch screen, along with the RS232 and RS485 serial port, USB HOST and USB DEVICE Interface, 100M network interface, high-capacity SD card memory, and provide stereo audio output, wide voltage and wide power supply work is more suitable for industrial applications. 
 Second, the technological advantage 



 * Software advantages: 
 1, WINDOW CE5.0 system startup less than 10 seconds 
 2, SD card, field-upgradeable systems, replacement of the boot screen 
 3, the system starts, the user memory up to 60MB 
 4, you can switch easily switch system and user programs 
 5, the watchdog is running can prevent the system crash 
 6, LCD backlight and sound can be adjusted through the parameters 
 7, more than 30 free utility source code 
 8, to provide UI design, part of the ICON components free of charge 
 9, provides full-featured SDK and API function code package 
 10, 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, painting 
 Face, and voice change backlight slider, how to design the background music, alarm sounds. Button design, touch screen operation, network data transmission, etc. 
 * Hardware advantages: 
 1,7.0-inch true color LCD, 26 million colors, 800X480 resolution, LED backlight 
 2, memory 64MB, electronic drives 128M/1GM 
 3,3 a RS232, 1 × RS485 
 4,100 M network interface 
 5, high-speed 400M ARM920T core 
 6, high strength, high-precision resistive touch screen 
 7,1 a USB HOST, 1 个 USB DEVICE to access U disk, keyboard, mouse 
 8,1 stereo audio output, with speakers 
 9,9 V-28V wide voltage input, 12V 500mA current 
 10, provides: 8 I / 0 inputs, outputs 
 11, the working temperature range: -20 ℃ ~ 70 ℃ have been certified through the high and low temperature testing 
 * Other benefits: 
 1, a strong anti-interference ability, high and low temperature of rigorous 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. W