Description: Online system using proximity cards as Patrol Patrol card, the card reader as a patrol point, patrol members carry the cards at a pre-discharge good patrol frequency, time intervals, alignments to each patrol point inspection. Description: Patrol point to read information in real time to upload to the management center for analysis and processing. In the event of failure to press the line patrol phenomenon, real-time alarm system to achieve real-time management of security patrol patrol officers situation, increasing the security precautions. Up to 18 patrol member registration, storage Patrol recorded 512 full prompt recording area; swipe and press code Patrol Patrol; unrepeatable punch can be set within N minutes; over time intervals without Patrol Patrol member card, local and center management system also alarms; external two-dimensional and three patrol root induction head point (button); There interference protection input / output; variety of patrol service can be set, patrol routes can be set; surface oil immersion process, mildew and moisture. Applications: all kinds of professional Patrol occasions. CHD58 Series line patrol system using proximity cards as Patrol card, the card reader as a patrol point, patrol members carry the cards at a pre-discharge good patrol frequency, time intervals, alignments to each patrol point inspection. Patrol point to read the relevant information in real time to upload to the management center for analysis and processing. In the event of failure to press the line patrol phenomenon, real-time alarm system to achieve real-time management of security patrol patrol officers situation, increasing the security precautions. Up to 18 patrol member registration, storage Patrol recorded 512 full prompt recording area; swipe and press code Patrol Patrol; unrepeatable punch can be set within N minutes; over time intervals without Patrol Patrol member card, local and center management system also alarms; external two-dimensional and three patrol root induction head point (button); There interference protection input / output; variety of patrol service can be set, patrol routes can be set; surface oil immersion process, mildew and moisture. Technical Specifications: Dimensions: 150mm (length) × 100mm (W) × 28mm (height); Exterior Features: Keyboard settings, with LED display; Working voltage: DC12V ± 5% Operating temperature: -10 ℃ -55 ℃; Humidity: <98%; supported card types: type is determined by the reader; sensing distance: 20 ~ 50mm (Mifare card reader distance), 50 ~ 150mm (EM card reader distance).