Networked wireless gas monitoring system oriented to fully mechanized coal face

The invention discloses a networked wireless gas monitoring system oriented to a fully mechanized coal face. The system comprises a wireless upper corner gas sensor, a wireless base station, a wireless/CAN (controller area network)/industrial Ethernet gateway, a wireless/CAN/Ethernet monitoring substation and a wireless handheld acquisition instrument, wherein the wireless upper corner gas sensor sends the measured methane values to the wireless/CAN/industrial Ethernet gateway via a wireless repeater through wireless signals of the wireless base station; after receiving the wireless data, the gateway generates a CAN bus packet with the wireless data and sends the packet to the monitoring substation via a CAN bus; and the monitoring substation judges whether to carry out poweroff control on a coal mining machine according to the acquired values sent by the wireless upper corner gas sensor and simultaneously judges whether poweroff is successful by acquiring the values of an on/off sensor. By adopting the syste