The system allows to install equipment (opening sensors), on the entire range of available hatches. Depending on the manhole mines design can be applied additional adapters for installation on the wall or the inside mines cavity.
Connections between system’s components
To connect hatch opening sensor to electronics components AMSE used free copper or optical fibers. When using copper wires requires 2 wires (1 pair), using optical fiber – one fiber, any cable type. The transmitter is located directly at the opening of the sensor housing. The receiving part and the electronics components AMSE is located at the telephone station.
For authentication module used connection via GSM channel for programming and module management. As an authentication card can be used employer’s access card, for example using for access in the company building. GSM channel is used to protect the system from shutdown or abuse by staff
Hatch lock/unlock module
Module communicate with control system by GSM channel. This is protect system from shutdown or abuse by staff. If the battery charge drops below 25 percent, send a diagnostic signal to a remote monitoring center. By reducing the charge below 15 percent lock an automatic unlocking. As an option
propose reserve / main power for locks from the telephone network with a free telephone pair in the protected mine. With this option, there are 2 variants of the system configuration:
Main power from the telephone line. If the power off sensor switches powered by the backup battery. Opening and closing of the lock via the GSM channel
Main battery power. If the power off sensor switches to backup power from the telephone line. Opening and closing of the lock via the GSM channel