Research And Implementation Of Remote Control For Microfluidic Photosynthetic Function Microstructure Preparation System

With the advance of industrialization, human activities have been accelerating the pace of global warming. In addition to the policy on greenhouse gas emissions, research on how to use or bionic use of carbon dioxide has become an important researching direction. Thanks to microfiber's biocompatibility, preparing microfibers based on microfluidic method and encapsulating plant cells into the microfibers to constitute the photosynthetic function structures, and then relying on environment variables controlling method, this thesis takes some exploration and research on aspects of microfiber in photosynthesis. Usually, microfibers are generated by using syringe pump to control a certain rate of reactants through a microfluidic chip.The author of this thesis has made a lot of research on controlling modes of syringe pumps that can be available in market. On this basis, the author brings forward a C/S structure in which the foreground applications and background services are separated. This structure is suitable to the remote control for preparing microfibers. The structure consists of three main parts that are WiFi serial server, Android control software and Cloud service. Besides that, the real-time performance and stability of the system has been optimized in hardware design and software design. On the premise of guarantee the expected functionality, the author has achieved the design goal of a stable, real-time and remote control system.Firstly, at the foreground side,the WiFi serial server is the core component of the remote control system and the Android control software is the input method to get user's instruction. This thesis focuses on embedded hardware designing, such as powers, peripherals, WiFi circuit, RS-485 bus circuit, isolation circuit and etc. In addition to the hardware design, this thesis also introduces the embedded software development of multi-task system, the multi-task programming, the WiFi and RS-485 drivers, and the algorithm of EEPROM. In Android control application, this thesis covers the knowledge about Android configurations and framework components. According to the remote pump control method, the author defined the overall control software module structure, and then designed the network and data storage module.Secondly, at the background side, the cloud services provide the communication link for the foreground applications. This thesis mainly focuses on the Linux process technology, the socket programming, and the inter-process communication mechanism. The author designed two cloud services for two diffrent clients,which use the inter-process communication mechanism to share data, and use socket to achive the TCP/IP connection. Experimental result shows that this model can effectively improve the response speed of the service.Finally, the author applied the remote control system to prepare microfibers to verify the system function, and carried out a preliminary exploration of the remote control technology into microfibers preparation process. The functional test of the actual operation of the designed system shows that the overall system is reliable and has achieved the intended research goals.