This is a record of my growth and reflections in the fields of software development technology, AI large models, and surveying and mapping data processing.
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Integrated Navigation Products for Hydrographic Survey — 2026 Review
Overview This report covers GNSS+IMU integrated navigation systems applicable to hydrographic survey work in the global open commercial market, comprising 20 manufacturers and 56 models, divided into four classes: hydrographic POS, marine INS, subsea INS and OEM modules. Values are taken from current official manufacturer datasheets or product pages; unpublished items are marked as such, without back-calculation or conversion. Accuracy figures are not comparable unless the correction source, statistical basis, antenna baseline and wave period are stated, so every table records its measurement conditions and cross-basis values serve only as tier references. On that foundation, five rankings are given for attitude, heading, heave, outage position hold and free inertial performance, together with summaries of interface protocols, correction services, alignment times and scenario suitability. Data cut-off is 12 August 2026. ...
H618 Ubuntu 22.04 Qt Development Environment Setup Guide
1. Preparation H618 development board, remote tools like WinSCP and PuTTY, and enabling SSH remote login on Ubuntu. 2. Build Environment Setup First, update the system package list and install the development tools and dependency libraries required to build Qt. Run the following commands in a terminal: sudo apt update sudo apt install build-essential g++ libgl1-mesa-dev libglu1-mesa-dev freeglut3-dev mesa-common-dev libx11-dev libxext-dev libxtst-dev -y The above covers the GCC compiler, the Make tool, and the X11 and OpenGL libraries required by the Qt GUI. ...
Benchmarking Code Generation: A Look at Chinese and International LLMs
Abstract: With the rapid advancement of artificial intelligence technology, the application of large language models (LLMs) in software programming has become a focal point of shared interest among both industry and academia. This paper takes mainstream domestic and international LLMs as its research subjects and conducts a systematic comparative analysis of their programming capabilities from multiple dimensions, including performance on programming benchmarks, code-generation quality, engineering-practice competence, adaptability to Chinese programming scenarios, and ecosystem development. The study reveals that domestic LLMs—represented by DeepSeek, Qwen, and MiniMax—have fully matched or even surpassed, in certain areas, internationally recognized benchmark products in standardized programming benchmarks. In particular, from late 2025 to early 2026, MiniMax M2.5 and GLM-5 have entered the global top three on the SWE-bench Verified engineering-level benchmark, marking a historic breakthrough in the programming capabilities of domestic LLMs. However, in terms of systematizing agentic coding, building robust code-security frameworks, and fostering a mature developer ecosystem, international models still hold a relative advantage. This paper aims to provide researchers, engineers, and decision-makers with an objective and comprehensive perspective for reference. ...
How to Install MySQL on CentOS 7
1. Download the Installation Package sudo wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm 2. Start Installation sudo yum -y install mysql57-community-release-el7-10.noarch.rpm 3. Install the Server sudo yum -y install mysql-community-server If the above error occurs during installation (errors may vary depending on the environment), please refer to the following solutions: Error 1 Error: Package: akonadi-mysql-1.9.2-4.el7.x86_64 (@anaconda) requires: mariadb-server Removing: 1:mariadb-server-5.5.68-1.el7.x86_64 (@anaconda) mariadb-server = 1:5.5.68-1.el7 Obsoleted By: mysql-community-server-5.7.41-1.el7.x86_64 (mysql57-community) Not found You could try using --skip-broken to work around the problem ...
Reflections on the Viral Rise of OpenClaw
In the spring of 2026, an open-source project named “OpenClaw” unexpectedly went viral in China. Built upon local large language models and integrating multimodal interaction capabilities, it seeks to replace the traditional Graphical User Interface (GUI) with natural language, gestures, and even rudimentary brain-computer interfaces—redefining how humans converse with computers. A user simply says: “Turn this weekly report into a PowerPoint presentation, send it to Director Li, and include the data charts.” ...
