搜索关键词"研华电脑进入u盘启动系统后黑屏",共个3715结果

到底什么是嵌入式?什么是单片机?

大家好,我是小枣君。 凡是从事计算机或电子信息相关领域工作的童鞋,一定都听说过嵌入式和单片机吧? 很多人应该知道,这两个名词和硬件系统有着非常密切的关系。一听到它们,就容易让人联想到插满芯片和针脚的电路板: 但是,如果要问具体什么是嵌入式,什么是单片机,它们之间究竟有什么区别,我相信大部分人并不能解释清楚。 今天,小枣君就给大家做一个入门科普,揭秘上述问题的答案。与此同时,我还会给大家介绍一下,我们经常听说的51、STM32,究竟是什么。 什么是嵌入式 ...

工业控制为何用PLC而不用嵌入式?

你对“嵌入式”的定义是什么? 有人说嵌入式就是Linux。 但是也有人提到了工控机(我个人觉得工控机就是嵌入式在工控领域的应用并且形成了完整的产业链,比如知名的研华科技)。 当然单片机是完全按照嵌入式的定义设计的,为何不用单片机我简单说两句(我当然不会说是PLC也是单片机做出来的这种鬼话),1开发周期漫长ago long long,2.单片机适合用于量产的项目.工控类产品尤其是非标的明显不适合量产。3.稳定性其实硬件做得好也不妨事。4.形成不了产业链没有完...

研华NVS-501 High Performance Video Recorder with PoE++Switch

Built in high power 802.3at PoE+ Switch for all 16 or 24 ports 10/100/1000 Base uplink port Supports Intel up to 9th Gen Core™ I processor with Intel QM370chipset Supports up to two 260-pin SO-DIMM up to 64GB DDR4 2666 SDRAMbased ...

研华BB-SR31000020 SmartFlex, Global, 2x ETH, Metal, No ACC

LTE Cat.4, 3G/HSPA+, GPRS/EDGE, Global, 2x SIM LTE B1, B2, B3, B4, B5, B7, B8, B12, B13, B18, B19, B20, B25, B26, B28, B38, B39, B40, B41 Powerful CPU and Memory, Hosting of SW IoT applications DIN rail mounting, Sleep mode 2x ETH...

研华BB-857-11911 PoE+ Giga-MiniMc LFPT, 2TX/SFP

Rugged stand-alone metal enclosure with compact external power supply Supports Jumbo Frames (up to 10240 bytes) Multiple mounting options (Desktop, DIN Rail or Wall-mount) Features configurable PoE Reset on Fiber LOS Supports IEEE...

研华NMC-E02 4 of GbE ports with PoE module

4 of IEEE802.3 af/at compliant PoE ports Advantech PoE Control Utility for port management Field side replaceable...

研华PCE-5B10 10-slot BP for 14-slot chassis

10-slot BP for 14-slot chassis Segments: 1 One CPU card slot PCIe slot: One x16; Four x1 PCI-X slot: N/A PCI slot: Four 32/33 ƒ Compatible with IPC chassis: IPC-510, IPC-610, IPC-611, ACP-4000, ACP-4010, ACP-4320 and ACP-4360Compl...

研华IMC-150LPI Hardened PoE Long Reach Ethernet Extender, UTP

Extends Ethernet up to 800m at 10 Mbps or 500m at 100 Mbps over UTP cable Dual design with PoE+ PD/PSE Railway Trackside EN 50121-4 Features Link Fault Pass Through (LFPT) Switch-selectable for configuring LAN rate and connection ...

研华EKI-2701MPI-5G Hardened multi-speed Mega PoE Injector

Supports multi data rate 10M/100M/1G/2.5G/5G for Data in and PoE out IEEE 802.3af/at/bt compliant Force mode power supports up to 90W by DIP switch Power input 54~57 VDC, injects power up to 90W Provides slim size and DIN-rail wit...

研华1960053207N001 1.5U LGA1151/1200 Aluminum Copper CPU Air Cooler

Minimum Chassis Height: 1.5U CPU Package: Intel LGA1151/1200 Heat Sink Material: Aluminum & Copper heart Fan Speed: 4,400 +- 10% RPM Recommended chassis: IPC-3012 Recommended boards: PCE-3029/3032/4129/4132...

研华IMC-150PS-120 120 Watts AC to DC Adapter

Certified with IEC 62368-1 & CB 60950-1 Meets USA EISA 2007 Meets Energy Efficiency DOE Level VI Meets Code of Conduct Version 5 Tier 2 Supports surge 6KV High Reliability Over Current Protection, Over Temperature Protection, ...

研华PCL-10120 2m, IDC-20扁平线缆

2x20芯IDC插座 扁平缆缆,20芯IDC插座连接器 扁平缆缆 颜色:多色IDC-20芯接头带扁平电缆...