Communication system

Communication system

The communication system developed within the project enables wireless data transmission within the longwall panel and further transmission to the surface – to the dispatcher systems. The idea of the system is shown in the figure.

The system consists of the following components:

EB.BCC-01 pressure sensor

The EB.BCC-01 pressure sensor is used for wireless pressure measurement in the cylinders of the powered shield support. Main parameters of device are:

Parameter Name	Value
Nominal Voltage	3,6 V DC
Nominal current consumption	1,2 mA
Power supply type	Lithium battery from multiple suppliers
Measured pressure	0 – 60 MPa
Accuracy of measurements	0,5 % measured range
Transmitting speed	100kbps – 250kbps
Transmitting range	~25m
Working time on battery (normal operation)	1,5 year
Working temperature	0°C-40°C

Prototype of EB.BCC-01:

ATEX JSHP 19 ATEX 0022X certificate EB.BCC-01 module:

EB.SC-01 pressure signalization module

The EB.SC-01 pressure sensor is used for wireless pressure measurement in the cylinders of the powered shield support. Main parameters of device are:

Parameter Name	Value
Nominal Voltage	3,6 V DC
Nominal current consumption	1,2 mA
Power supply type	Lithium battery from multiple suppliers
Measured pressure	0 – 60 MPa
Accuracy of measurements	0,5 % measured range
Transmitting speed	100kbps – 250kbps
Transmitting range	~25m
Working time on battery (normal operation)	1,5 year
Working temperature	0°C-40°C

Prototype of EB.SC-01:

ATEX JSHP 19 ATEX 0028X certificate EB.SC-01 module:

EB.AP-01 Intrinsically safe access point (EB.APG-01 main part and EB.APR-01 radio part)

EB.AP-01 is an intrinsically safe access point for reading data from an intrinsically safe wireless sensor network. EB.AP-01 consists of two parts: EB.APR-01, which is an antenna module that enables communication with each sensor at 2.4 GHz, and a main module EB.APG-01, which collects data from sensors and enables communication with the Ethernet network.

Prototype of EB.APG-01: