WiFi (Wireless Fidelity) and ultrasonic communication-based online FPGA (Field Programmable Gate Array) updating system and method

Abstract

The invention discloses a WiFi (Wireless Fidelity) and ultrasonic communication-based online FPGA (Field Programmable Gate Array) updating system and method. The system comprises a main control moduleand a WiFi module, an ultrasonic module, an FPGA and a Flash chip which are connected with the main control module, wherein the WiFi module and the ultrasonic module are externally connected with anupper computer; the WiFi module is wirelessly connected with the upper computer and is connected with the main control module and the FPGA by adopting an SPI (Serial Peripheral Interface) bus mode; and the FPGA is connected with the FLASH chip by adopting an EMIF (External Memory Interface) protocol. The method comprises the steps of updating when an AUV (Autonomous Underwater Vehicle) is in a floating state and updating when the AUV is in a diving state. The system has the advantages that the system is low in cost, convenient to use and reliable in operation; special cables and downloaders are not needed to be connected; and the reliability of the system is guaranteed by using WiFi and ultrasonic dual-mode communication at the same time. The method has the advantages that the updating cost of AUV programs can be reduced and versions of the programs can be updated in real time to improve the flexibility of AUV systems.

Description

technical field [0001] The present invention relates to the field of underwater unmanned vehicle (Autonomous Underwater Vehicle, AUV for short) and FPGA technology, in particular to an FPGA online update system and update method based on wifi and ultrasonic communication. Background technique [0002] The ocean occupies 71% of the earth's area, has rich biological and mineral resources, has important economic value, and provides a material basis for the realization of sustainable social development. As a tool for human use and development of marine resources, AUV has now attracted widespread attention from all over the world and has a wide range of applications, such as seabed resource exploration, seabed topographic survey, etc. As a tool for human development and design, AUV has a series of development processes, including the debugging process. The debugging test process is the verification and feedback of the theoretical design process, and it is an extremely important ...

AI Technical Summary

Problems solved by technology

The debugging test process is the verification and feedback of the theoretical design process, and is an extremely important link in the development and design of AUVs. At present, most of the debugging tests of AUVs are "programming-testing-recycling-disassembly-programming- -Installation-test-recycling..." Such a cyclical process consumes a lot of manpower, material resources and precious time

The currently used method of debugging and updating programs can no longer meet the requirements of today's rapidly developing society and the control of manpower, material resources, and time costs. Therefore, there is an urgent need for a better program updating method to be applied to AUV debugging tests.

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