Robot control algorithm-TEB algorithm-Obstacle Avoidance and Robot Footprint Model

1.How Obstacle Avoidance works 1.1 Penalty Clause Obstacle avoidance is implemented as part of overall trajectory optimization. Obviously, optimization involves finding the minimum cost solution (trajectory) to a specified cost function (objective function). Simply put: if a planned (future) pose violates the desired separation from obstacles, then the cost of the cost function must increase. […]

hotplug event processing of modesetting_drv

uevent mechanism There are two ways for uevent to report events to user space: 1. Directly call executable programs or scripts in user space through the kmod module 2. Pass events from kernel space to user space through the netlink communication mechanism About hotplug interface implementation and calling in modesetting_drv void drmmode_uevent_init(ScrnInfoPtr scrn, drmmode_ptr drmmode) […]

SpringBoot + mybatis-plus + HMACOTP implements two-factor authentication function

Original Lutiao Programming Lutiao Programming 2023-08-04 19:30 Published in Beijing included in collection #java30 #SpringBoot29 This series of courses will include various functional implementations and functional examples related to Springboot. SpringBoot + mybatis-plus + HMACOTP implements two-factor authentication function Two-Factor Authentication (2FA) is a method to enhance the security of user authentication, usually using a […]

RiotPot: A resilient honeypot security system for IoT and OT

About RiotPot RiotPot is a powerful elastic honeypot system. RiotPot mainly targets IoT and OT protocols and supports user interaction. RiotPot supports a plug-in mechanism. These services can be loaded into honeypots in the form of plug-ins, making RIoTPot a modular and portable honeypot system. Services are loaded at runtime, which means that honeypot mentions […]

RiotPot: A Resilient Honeypot Security System for IoT and OT

About RiotPot RiotPot is a powerful elastic honeypot system. RiotPot is mainly aimed at IoT and OT protocols, and supports user interaction. RiotPot supports a plug-in mechanism. These services can be loaded into honeypots in the form of plug-ins, making RIoTPot a modular and portable honeypot system. Services are loaded at runtime, which means that […]

After the sudo apt update command W: An error occurred while verifying the digital signature. This repository has not been updated, so the previous index file is still used. GPG error: http://robotpkg.openrobots.org/packages

yan@RO:/etc/apt/sources.list.d$ sudo apt update Get: 1 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB] Hits: 2 http://packages.ros.org/ros/ubuntu focal InRelease Hits: 3 http://ppa.launchpad.net/git-core/ppa/ubuntu focal InRelease Hits: 4 http://cn.archive.ubuntu.com/ubuntu focal InRelease Hits: 5 http://cn.archive.ubuntu.com/ubuntu focal-updates InRelease Hits: 6 https://deb.nodesource.com/node_16.x focal InRelease Get: 7 http://cn.archive.ubuntu.com/ubuntu focal-backports InRelease [108 kB] Ignore:8 http://robotpkg.openrobots.org/packages/debian/pub focal InRelease Hits: 9 http://robotpkg.openrobots.org/packages/debian/pub focal Release Error: 10 http://robotpkg.openrobots.org/packages/debian/pub […]

ErlangOTP build application – process pool

ErlangOTP build application – process pool foreword process pool process pool supervision tree implement supervisor process pool server implementation worker test Foreword Will use the general server (gen_sever), FSM (gen_fsm), event processor (gen_event) and supervisor (supervisor) to build applications for actual combat Process pool The idea behind process pools is to manage and limit the […]