Development Of Monitoring System Of Coal Mine Leakage And Communication

Monitoring system of mine leakage and communication plays a significant role in managing the daily work, dealing with emergencies and handling sudden accident. Although the leakage communication system is adopted in the existing coal mine communication system, used the telephone communication is still the common way of the communication dispatching between Inoue and the underground coal mine.However telephone communication can not keep up with the enterprise informatization process, and the transmission signal of the telephone line is interfered by noise and electromagnetic interference. At the same time, using the telephone line to transmit signal, inoue scheduling indoor storage information is not flexible, if changing the method of the manual record, the workload would be too heavy.With the development of network and digital era, the digital transmission and the network transmission can better reduce the interference of external factors, improve communication performance. In this paper, based on the technical requirements of the company and the actual situation of communication, and accorded to the wide access to relevant technical literature, the existing leakage communication system is upgraded to achieve the information digitization and transmission by the network.TCP Modbus protocol is widely used in the field of industrial control to ensure better communication between the well and underground communication equipment.To solve the problem that the audio signal is easily interfered by the noise in the transmission process, by the strict numerically calculation, the digital signal processing technique is adopted to filter the clutter in the audio signal. The TCP technology is then used to ensure that the digital data are not chaotic sequence and lost when the digital signal is transmitted by the network.The KingView is chose as a development platform of a coal leakage communication system monitoring software, which is developed by the Asia-technology Co., Ltd. It would handle and monitor all the information.It has been tested in the laboratory, that the leakage communication system can realize calls, recording, broadcasting and other functions.At the same time,the radio management software can also reflect the communication state in the real time. It is shown that the system is stable and reliable during the test, while can meet the requirements of the enterprise.