Method for determining position of IP camera based on Ethernet protocol

Abstract

The invention relates to a method for determining the position of an IP camera based on an Ethernet protocol, and the method comprises the steps: obtaining the corresponding relation between an MAC address of the camera and a port number of a switching chip through a configuration interface of the switching chip, and obtaining an MAC Address Table, wherein the acquired underlying register data comprises MAC information and a corresponding port number; the method comprises the following steps of: searching an ARP (Address Resolution Protocol) cache table before sending data, if an MAC (Media Access Control) address of opposite equipment exists in the cache table, directly packaging a frame by using the MAC address, and sending out the packaged frame; if the corresponding information does not exist in the cache table, obtaining the corresponding information by sending an ARP request message; the learned mapping relation between the IP address and the MAC address is put into an ARP cachetable to be stored for a period of time, in the validity period, the device searches for a target MAC address from the ARP cache table for data packaging, and the ARP table is deleted after the validity period is passed; obtaining a corresponding relationship between the MAC address and the IP through an ARP protocol; and binding the relationship between the MAC and the IP of the camera through the configuration interface.

Description

technical field [0001] The invention relates to the field of aviation testing, and the method is applied in aviation to a video display control system for unmanned aerial vehicles. Background technique [0002] The handheld operation terminal is used in the configuration and maintenance of UAVs, and mainly completes the functions of UAV parameter configuration, status acquisition, video monitoring and recording of item mounting, and software version upgrade of avionics equipment. The drone has 4 built-in cameras and uses 10M / 100M adaptive Ethernet interface externally. In order to reduce the workload of camera installation and maintenance, the camera manufacturer recommends the function of automatically obtaining IP. For the application layer, it is impossible to distinguish the location of the camera through the IP address of the camera. Therefore, there is an urgent need for a method that can automatically Position the camera. [0003] China Invention CN201020568230.5 (a...

AI Technical Summary

Problems solved by technology

The invention is connected to multiple network ports through the Switch chip, and can identify the IP of the device. However, the RARP protocol is based on knowing the MAC of the network device, and then obtaining the IP information according to the protocol, otherwise the IP of the device cannot be determined.

Images