Design of Intelligent Mineral Lamp System Based on MC112 Sensor and RSSI Ranging
In order to ensure the safety of underground workers,a new intelligent mineral lamp system based on underground combustible gas sensing and positioning is proposed.The STC15W408AS single chip microcomputer is used as the main control chip,the MC112 catalytic combustion sensor is used to realize the collection and early warning of the underground gas concen-tration,the RSSI ranging and positioning algorithm is used to realize the positioning of the underground personnel,the wireless transmission and power carrier communication are used to realize the communication between the underground and the back-ground system,and the wireless transmission of 433 MHz information is carried out through the RFCC1101 chip.The system test shows that the energy consumption of the new intelligent mineral lamp is 27 520 mAh,which is less than the total amount of 30 000 mAh of the designed lithium battery and meets the design requirements.Each function of the system is perfect.It can realize the real-time monitoring of the underground gas concentration and the regional positioning of the personnel.At the same time,it has the functions of gas concentration alarm and the rescue of underground personnel.It has a practiality and provides a guarantee for the life safety of the underground workers.
intelligent mineral lampcombustible gasgas concentration monitoringpersonnel area positioningRSSI ranging and positioning algorithm