Guard patrol tswj software ua lub luag haujlwm tseem ceeb hauv kev saib xyuas kev saib xyuas.Tso cai rau kev teeb tsa chaw kuaj xyuas, teem caij teeb tsa, hloov kho thiab rub tawm cov ntaub ntawv los ntawm tus neeg saib xyuas saib xyuas nyeem ntawv, thaum kawg tsim cov ntaub ntawv ntau yam raws li tus neeg siv cov lus nug xav tau.