Gas monitor, system and method sensing two different gases
A monitor for gases includes a terminal portion that has two states, an output configuration state in which an output signal is sent from the processor to a first device, and an input configuration state in which an input signal is received from a second device.
1. A system for monitoring gases in a mine comprising:
a monitor of a communication network comprising:
a housing;
a battery disposed in the housing;
a gas sensor portion powered by the battery and in electrical communication with the battery which detects a first gas and at least a second gas different from the first gas in the mine;
a terminal portion that has two states, an output configuration state in which an output signal is sent from the processor to a first device remote from the monitor, and an input configuration state in which an input signal is received from a second device remote from the monitor, and a first port and a second port, the first and second ports are reversible to act as either output ports when in the output configuration state or input ports when in the input configuration state, when in the output configuration state, there is an output 1 and an output 2 , when in the input configuration state, there is an input 1 and an input 2 ;
a wireless communication portion disposed in the housing, powered by the battery and in electrical communication with the battery and the sensor portion, which sends a wireless signal from the housing to the network in the mine that the gas sensor portion has sensed of either the first or second gas;
a processor disposed in the housing, powered by the battery and in electrical communication with the wireless communication portion, alarm portion, sensor portion and battery; and
a remote station which receives gas values of gas monitors from a wireless network, each monitor having an identity, the remote station comprising:
a receiver which receives the gas values from the gas monitors wirelessly from the network;
a processor in communication with the receiver which receives the gas values from the receiver; and
a display in communication with the processor on which the processor displays an alarm indication when the gas value is above a predetermined level and an identity of a monitor associated with the alarm indication and the gas value.
2. The station of claim 1 including a housing and the processor and the receiver are disposed in the housing and the display is disposed on a face of the housing.
3. The monitor of claim 1 wherein when the terminal portion is in the output configuration, output 1 is used for visual alarm.
4. The monitor of claim 1 wherein when the terminal portion is in the output configuration, output 1 is used to power a device that is located remotely.
5. The monitor of claim 1 wherein when the terminal portion is in the input configuration, input 1 is used to monitor a field switch.
6. The monitor of claim 1 wherein when the terminal portion is in the input configuration, input 1 is used to monitor a pull cord.
7. The monitor of claim 1 wherein when the terminal portion is in the input configuration, input 1 is used to monitor an emergency stop.