目的 研究现有停车警示装置的类型、特点及存在的问题，探索高效构建创新方案的新途径。方法 首先基于九屏幕法寻找新的解题思路，其次基于系统进化的产品改进流程解决次生问题，最后综合应用最终理想解和资源分析等进一步提高技术系统的理想度。结论 设计结果表明，新方案在带给客户更多有用功能的同时，极大地降低了产品的成本，是一个高理想度的解决方案，对其他产品的创新具有积极的借鉴意义。

It aims to study the types, characteristics and existing problems of the parking warning devices, and find a way to construct new innovative solution efficiently. The nine-screen approach is used to find new problem-solving ideas, and then the corresponding secondary problem could be solved by the systematic process of product improvement. With application of ideal final result and resource analysis method, the ideality of technical system could be further improved. Design results show that the new solution provide more useful function to customers, while the cost of the product could be greatly reduced. As a highly ideality solution, it can give a positive reference for other product innovation.