Navigation recorder

The invention discloses a navigation recorder which comprises a shell, the shell is connected with an installation plate, an aviation plug is arranged in the middle of the installation plate, installation holes are formed in the two sides of the aviation plug, and a plurality of heat dissipation holes are formed in the side wall of the shell. And a network communication module, a cyclic storage module, an operation authorization and recording module, a storage module and a state monitoring module are arranged in the shell. Multi-path storage can be carried out, cyclic writing and automatic covering of data can be achieved, the functions of monitoring and deleting permission are achieved, the data loss alarm function is achieved, automatic capacity expansion can be achieved, the structure is simple, and the manufacturing cost is low. 本发明公开了一种航行记录仪，包括壳体，所述壳体连接安装板，所述安装板中部设有航插头，所述航插头两侧均设有安装孔，所述壳体侧壁设有若干散热孔，所述壳体内设有网络通信模块、循环储存模块、操作授权和记录模块、存储模块和状态监控模块。本发明能够进行多路存储，数据可以实现循环写入和自动覆盖，具有监控与删除权限的功能，具有数据丢失报警功能，能够实现自动扩容，结构简单，