https://blog.gongquiz.com/2022/11/09/%ec%b8%a1%eb%9f%89%ea%b8%b0%ea%b8%b0%ec%9d%b8-%ed%86%a0%ed%84%b8-%ec%8a%a4%ed%85%8c%ec%9d%b4%ec%85%98total-station%ea%b3%bc-%ec%a7%80%ed%94%bc%ec%97%90%ec%8a%a4gps%ec%88%98%ec%8b%a0%ea%b8%b0/