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AI生成PLC程序代码的原理

AI生成PLC程序代码的原理

🚀 专为自动化工程师打造的原生AI社区

AI赋能:用AI技术解决工程师的工作痛点

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本周一位博途之友的群友发表了一篇文章:AI自动生成基于C#的PLC通信测试软件---只需一句提示词!这个案例让我们感受到AI的强大,也需要深入思考一个问题:AI生成PLC代码的原理是怎样的?整理分享给大家。

已经发布的文章:

AI自动生成基于C#的PLC通信测试软件---只需一句提示词!

      AI 生成代码和生成自然语言(比如写文章)的底层逻辑一致,核心是将代码拆解成一个个 “语言单元”(如关键字、变量名、符号),然后学习这些单元的排列规律,最终按照规律生成新的、符合语法和逻辑的代码序列。

一、核心步骤

步骤 1:数据准备 —— 喂给 AI 海量代码数据

  • 数据源:公开代码库(GitHub、GitLab)、编程语言官方文档、开源项目、代码教程等;

  • 数据处理:

    清洗:剔除错误代码、无意义代码、重复代码;

    格式化:统一代码风格(如缩进、命名),将代码和对应的自然语言描述配对(比如 “计算阶乘”+ 对应的 Python 代码);

    分词:把代码拆成最小单元(Token),比如def、=、for、i、:都是独立 Token。

步骤 2:预训练 —— 让 AI “记住” 代码的语法和逻辑

AI 基于Transformer 架构(核心是注意力机制)进行预训练:

  • 核心目标:学习 “给定前半部分 Token,预测下一个 Token 的概率”;

  • 举例:当 AI 看到def factorial(n):,它会学习到接下来大概率出现if n == 1:,而不是for i in range(10):;

  • 关键能力:

    语法合规:掌握 Python/Java/JS 等语言的语法规则(比如 Python 缩进、Java 分号);

    逻辑关联:理解 “变量定义→使用”“函数调用→参数匹配”“循环 / 条件的执行逻辑”;

    场景映射:比如 “读取 CSV 文件” 对应pandas.read_csv(),“排序” 对应sorted()或sort()。

步骤 3:微调 —— 让 AI 更 “懂” 编程场景

预训练后的 AI 只是 “认识代码”,还需要微调来适配编程需求:

  • 微调数据:人工标注的 “问题描述 + 最优代码”“代码错误 + 修正方案”“代码注释 + 重构”;

  • 目标:让 AI 生成的代码不仅语法正确,还能解决实际问题、符合编程规范(比如命名规范、性能优化)。

步骤 4:推理生成 —— 根据你的指令造代码

当你输入 “用 Python 写一个计算斐波那契数列的函数”,AI 的生成过程:

  1. 解析你的自然语言指令,转换成 AI 能理解的 Token 序列;

  2. 基于预训练学到的规律,从第一个 Token 开始(比如def),逐个预测下一个最可能的 Token;

  3. 生成候选序列:AI 会生成多个可能的 Token(比如fib/fibonacci作为函数名),选择概率最高、逻辑最连贯的;

  4. 输出完整代码:把 Token 拼接成完整的代码片段。

步骤 5:优化 —— 修正生成的代码(可选但关键)

很多 AI 代码工具(如 Trae、GitHub Copilot)会额外做优化:

  • 语法检查:用编译器 / 解释器校验代码,修正语法错误(比如少写的冒号、括号);

  • 逻辑验证:运行简单测试用例(比如输入 n=5,检查斐波那契结果是否正确);

  • 风格优化:统一缩进、命名,符合 PEP8(Python)/ 阿里巴巴 Java 规范等。

二、总结:

1、工作方式:从写代码到搭架构;

2、工作能力:一精多能。精让你深刻理解技术的架构;技术应用的复合性需要多能。

用AI赋能,让应用更简单,欢迎您的加入!
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  1. CONNECT:[ UseTime:0.000379s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000673s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.004244s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.001401s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000667s ]
  6. SELECT * FROM `set` [ RunTime:0.006857s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000727s ]
  8. SELECT * FROM `article` WHERE `id` = 606185 LIMIT 1 [ RunTime:0.007455s ]
  9. UPDATE `article` SET `lasttime` = 1778477502 WHERE `id` = 606185 [ RunTime:0.012089s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.001399s ]
  11. SELECT * FROM `article` WHERE `id` < 606185 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.004181s ]
  12. SELECT * FROM `article` WHERE `id` > 606185 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001746s ]
  13. SELECT * FROM `article` WHERE `id` < 606185 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.009531s ]
  14. SELECT * FROM `article` WHERE `id` < 606185 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000862s ]
  15. SELECT * FROM `article` WHERE `id` < 606185 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001855s ]
0.154350s