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Chinese society of inertial technology photoelectric technology professional committee of the 11th academic exchanges will from 30 to 31 October 2014 will be held in Wuhan Hetian Hotel, the meeting will be organized by China Electronics Technology Group Corporation No. 26 research sponsored, Wuhan Changying through photoelectric technology Co., Ltd. in association with, the preparatory work of the Congress is currently progressing smoothly, the number of participants and scale than in previous years, is expected to will have nearly a hundred delegates all over the country. This meeting will communicate and demonstrate the research results of China's photovoltaic technology in recent years, and promote the great development of China's inertial technology. It is learned that the meeting...
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Accompanied by Nanjing Panda 8.5 generation line, BOE 8.5-generation line, Huaxing Electric Shenzhen Second 8.5 generation line has announced the production, China has become the global important production base of the panel. At the same time, by the end of this year, the domestic production of 8.5 generation production line or will reach 8, experts believe that in the face of so many 8.5 generation line, traditional TFT - LCD panel (that is, the film transistor LCD is in the active matrix type liquid crystal display a) industry will be faced with the risk, and AMOLED (active matrix organic light-emitting diode panel, is an epoch-making display technology) will be the next step of investment focus. Behind the domestic panel production line has been put into production, the global pane...
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Exposing source1.7W 405nm LED or 1.8W 385nm LEDNonuniformity of exposureMaximum sample size20*20mmSingle exposure size0.075 inch(10X Objective lense)Minimum resolution2μm(10X Objective lense)Lens magnification2X,5X,10XAuto focus accuracy500nmAutomatic leveling precision30’Optional featuresExposure stitching, arbitrary polarization direction exposureTiling precision of exposure 1μmPolarization contrast100:1(405nm)Linear polarization direction accuracy±0.2°Appearance size5400mm(length)*400mm(width)*380mm(height)
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The State Administration for Industry and Commerce on September 4, announced that from now on to the end of 2015, will be within the scope of the key field of household electronic appliances, clothing shoes and hats, decorative decoration materials, transport, and other related services to carry out consumer rights.In recent years, the relevant complaints of household electronic appliances has been among the first total consumer complaints. The business sector will be home appliances, communications equipment, computers and other goods to focus on and solve product quality is uneven, no after-sales service guarantee and service quality poor outstanding problems, yijiachongzhen, shoddy, false labeling violations should be investigated and dealt with according to. Clothing shoes and hats is ...
June 18, approved by the Ministry of civil affairs "China household appliances Service Association extended warranty service professional committee" (referred to as the extension of the insurance committee) was established in Beijing. According to reports, the Chinese home appliance service maintenance association on the basis of the research on the international enterprise appliance extended warranty service, forming a set of plans to promote the extension of the security services in china.Since 2007 since the to support the new ANN, Assurant from American international warranty professional company in China to open up the market, hold appliances extended warranty services forum; in 2011, the Association issued a "home appliance warranty service is normative" guild reg...
Recently, Malaysia's energy committee adjusted the list of mandatory certification of electrical and electronic products, electronic and electrical appliances for compulsory certification of products will be from the existing 31 increased to 34, mainly increased air conditioning, adapter / charger, massage three categories of products and the replacement of hair dryer, evaporator, mosquito repellent replacement for two kinds of electric shaver products. New mandatory product certification will be effective January 1, 2013. There are two legal basis for the certification of electronic products in Malaysia: "electricity supply law (1990)" and "the approval of electrical equipment (1994)", the two laws are implemented by the energy commission. For the former power sup...
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LED显示屏幕的无线解决方案

Date: 2014-07-01
Browsing times: 101

随着LED技术的不断成熟,成本的不断下降,加速了LED显示屏的应用与普及。尤其针对企事业单位信息发布,广告传媒,体育场馆,舞台背景等应用LED显示屏更是大显身手。 

LED显示屏系统通常由电脑主机,LED显示屏两部分组成。其中电脑主机主要负责LED显示屏界面编辑,数据下载等,LED显示屏则用来实际显示用户编辑好的数据。因此电脑主机和显示器之间的数据交换是必不可少的。 

从数据交换方法上讲,也通常采用两种解决方法,一种为有线连接,主要采用RS232,RS485,以太网等技术;另一种为无线连接,主要采用433M无线模块实现。针对有线连接一般具有成本低等优势,但缺点也是十分明显的,有线连接必然要离不开施工,针对有些施工困难的场合,施工的成本是非常高的,另外有些地方是不允许施工的,更是对有线应用造成了限制,同时采用有线应用还存在后期维护成本较高的问题,因此当前无线通讯便越来越被LED显示屏厂家所认可。

电脑主机与LED显示屏之间采用无线通讯。因现在电脑已基本很难再找到具有RS232端口的电脑,但是USB端口资源却非常丰富,鉴于此我公司特推出一款USB无线数传模块专门用于将电脑主机上的数据经由USB通过无线进行传输。且针对电脑主机侧,该USB无线输出模块会映射成RS232串口,因此针对原有电脑主机上运行的LED显示屏配置软件可以不加任何变动,使用起来非常方便。

其中LED显示屏的基本组成部分包含有显示模组、显示屏控制卡、无线传输模块等组成。针对LED显示屏控制卡往往采用RS232总线接口,要想将显示屏控制卡和主机之间实现无线对接,我司专门开发了一款RS232转无线的模块。

另外该模块还具有地址滤波功能,如果使能该功能,只有地址匹配的终端设备才可以和设备本身建立链接,从而使纷繁复杂的无线空间变得如此简单明了,极大地减少了设备本身因非匹配地址而造成的软件开销,增加了设备的稳定性和可靠性。另外地址滤波功能,对于实现无线点对点通讯,点对多点通讯也是非常必要的。

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