神马调查系统

（1）任务初始化
管理员在 Web 端新建项目 → 选择场景模板（房地一体、征地、宅基地等） → 系统按模板自动调用数据库相应属性组、字段、表单。
任务包通过权限系统下发到指定移动端账号。
（2）外业采集算法
空间定位：调用设备 RTK / 北斗GPS定位 → 实时计算平面坐标与面积，自动投影到 CGCS2000坐标系。
图斑绘制：支持手动点线面绘制、轨迹自动成面、激光测距仪一键成图；算法实时拓扑检查（自相交、重叠、最小面积阈值）。
属性补录：动态表单校验（必填、数值范围、字典匹配），拍照、录音、指纹、电子签名作为附件与图斑自动挂接。
重复/遗漏检测：基于空间索引的实时碰撞检测，提示重叠宗地或缺失地块。
（3）成果自动生成
一键多格式导出矢量、报表、影像，图件自动成图
（4）权限与审计
权限模型：单位 → 部门 → 角色 → 用户 → 项目模块 → 属性组→字段七级授权。任何增删改操作写入审计日志（用户、时间、坐标、设备、前后值差异），支持全链路回溯。
通过以上规则，系统实现“任务驱动 → 采集 → 质检 → 入库 → 成果”闭环，保障数据一次采集、多场景复用。

(1) Task Initialization
Administrators create new projects on the web frontend → select scenario templates (integrated real estate and land, land expropriation, homestead, etc.) → the system automatically invokes the corresponding attribute groups, fields and forms in the database according to the template.
Task packages are distributed to designated mobile accounts via the permission system.

(2) Field Collection Algorithm
Spatial Positioning: Call device RTK/Beidou GPS positioning → calculate plane coordinates and area in real time, and automatically project to the CGCS2000 coordinate system.
Plot Drawing: Supports manual point/line/polygon drawing, automatic polygon generation from trajectories, and one-click mapping with laser rangefinders; the algorithm performs real-time topological checks (self-intersection, overlap, minimum area threshold).
Attribute Supplementary Entry: Conduct dynamic form validation (required fields, value range, dictionary matching), with attachments such as photos, audio recordings, fingerprints and electronic signatures automatically linked to the plot.
Duplicate/Missing Detection: Perform real-time collision detection based on spatial index, prompting for overlapping land parcels or missing plots.

(3) Automatic Result Generation
One-click export of vector data, reports and images in multiple formats, with automatic map generation for graphic documents.

(4) Permission and Audit
Permission Model: Seven-level authorization from unit → department → role → user → project module → attribute group → field. All add, delete and modify operations are recorded in audit logs (including user information, timestamp, coordinates, device information, pre-post value differences), supporting full-link traceability.

Following the above rules, the system realizes the closed-loop workflow of "task-driven → collection → quality inspection → storage → result generation", ensuring that data is collected once and reused across multiple scenarios.

搜集汇总

背景与挑战

背景概述

神马调查系统是一个适用于自然资源、城乡规划等行业的数据采集和管理系统，数据规模为5000万，月更新周期。系统通过多种算法和规则实现数据采集、治理和复用的闭环管理，适用于多种应用场景。