At present, microcomputer-based AC and DC monitoring systems generally require unattended operations. This can save more labor costs and achieve intelligent management of the system. AC DC monitoring system requires high-frequency switching technology combined with tablet technology to achieve. The system is increasingly demanding for tablet computers. Need to be able to display graphical user interface, stable operation and compatible software to record large amounts of data in real time. In the end, the touch screen can be gently clicked to help the manager directly observe the system changes, operate easily, and monitor the safe and stable operation of the system. A tablet computer PPC-3212 from North China Industrial Control was selected by the AC DC monitoring system integrator. The following details the application of North China Industrial Controls 12.1′′ touch LCD panel computer in the AC DC monitoring system.
System principle
High-frequency switch technology combined with North China Industrial's tablet computer technology and monitoring devices, to achieve the control of high voltage switch on/off, process control, accident protection, lighting load and other power needs. This system requires battery management functions, control functions, alarm functions, and background communication functions.
Two-phase three-phase five-wire mains power supply main work, high power 1 is the main power supply circuit, mains 2 is standby power supply circuit, automatic switching is performed through the alternating current power distribution unit, and the charging module is supplied by the alternating current air switch; Both the power unit and the charging module have built-in monitoring circuits that are responsible for monitoring their own status and high alarms. Through the communication method, the system information is reflected in real time on the 12.1′′ touch-sensitive LCD panel PC PPC-3212. 12.1′′ touch Liquid crystal display, can easily set the system operating parameters, each unit module has a sub-screen can display all the operating parameters of the system, the touch operation mode replaces the traditional button operation, convenient and intuitive.
system requirement
800×600 Touch LCD Interface With Serial Communication Interface or USB Interface Direct Touch OperationSystem advantage
System integrators use North China Industrial Controls 12.1′′ touch LCD Panel PC PPC-3212 as the operation and display interface of the AC variable DC monitoring device. North China Industrial’s Tablet PC PPC-3212 adopts a fanless and sealed design, and the Intel Atom N270 onboard has low power. The processor consumes a maximum of 2 gigabytes of memory and has high computational processing power, low power consumption and good heat dissipation, which can keep the system running stably for a long time and reduce the occurrence of faults. 4-wire resistive touch panel, DC power supply DC12V input. Cost-effective, easy to operate and maintain. At the same time, PPC-3212 with a Gigabit Ethernet can be used for high-speed network connections, with high transmission rates and different devices It provides high-definition audio output, can connect corresponding devices via a tablet computer, and plays high-definition audiovisual files, and supports two USB 2.0 and two COM ports, which can be flexibly extended to connect external devices and achieve more functional applications. And the tablet computer can be compatible with some common operating systems such as Embedded WinXP, plus the performance of the hardware system, stability , Determines the Tablet PC ideal solution for direct monitoring system.
System features
12.1" TFT LCD with a maximum resolution of 800 x 600Onboard Intel Atom N270 low-power processor, maximum support 2G memory provides 1 Gigabit Ethernet and HD audio output support 2 USB2.0, 2 COM ports slim design, DC power supply DC 12V input pen finger input Combined 4-wire resistive touch panel
System Block Diagram
system assesment
System integrators use North China Industrial Controls integrated tablet PCs, beautiful appearance, 800 × 600 true color display, direct touch screen operation, high performance, high processing capacity, rich interfaces, in full compliance with customer requirements. And North China Industrial Control this tablet computer cost-effective, easy to install, greatly saving the overall cost of the customer, and the operating effect is good, stable operation in harsh environments. At present, we have received good feedback from our customers.
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