摘要
针对目前嵌入式视频设备开发难度较大、成本较高的现状,提出了一个基于当下先进的低成本低功耗MCU——STM32F7和WiFi模块——ATWINC1500的无线视频采集、传输、显示方案。其中STM32F7不仅起到传统的控制作用,还完成了图像数据的处理与传输。硬件方面采用高集成度的设计,力求减少体积与功耗。软件方面,基于贴近底层的HAL库进行裸机开发。在最后展示了一个基于该方案的实例项目,证明了采用该方案的系统能可靠地完成视频监控的功能,在800×480的显示分辨率下,帧率可达25fps。同时验证了STM32F7系列控制器的性能与资源能够胜任于一般的视频应用。
In view of the current difficulty and high cost of developing embedded video equipment, a wireless video acquisition, transmission and display scheme based on advanced low cost and low power consumption MCU - STM32F7 and WiFi module - ATWINC1500 is proposed. STM32F7 not only plays a traditional control role, but also completes the processing and transmission of image data. The hardware is highly integrated? designed to reduce volume and power consumption. In terms of software, no operating system development based on HAL library is used. In the end, an example project based on this scheme is *presented which proves that the system using this scheme can reliably perform the function of video monitoring. The frame rate can reach 25 frames per second at the display resolution of 800 X 480. At the same time, the performance and resources of STM32F7 controllers are verified to be suitable for general video applications.
作者
沈方毅
朱蕴璞
宋成桥
Shen Fangyi;Zhu Yunpu;Song Chengqiao(School of Mechanical Engineering,Nanjing University of Science and Technology, Nanjing 210000, China)
出处
《国外电子测量技术》
2019年第2期128-131,共4页
Foreign Electronic Measurement Technology
