Device for switching mobile voice communication under coal mine and access method thereof

A technology of voice communication and switching device, applied in the direction of selection device, interconnection device, telephone communication, etc., can solve the problems of inability to be widely used, waste of system resources, low utilization rate, etc., and achieve the effect of maximizing resource utilization and reducing cost.

Inactive Publication Date: 2008-07-23
江苏维尔科技有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because the needs of underground voice communication are quite different from those of voice communication systems in densely populated areas such as cities, the existing relatively complete wireless voice communication systems, such as PHS, GSM, CDMA, etc., have high c

Method used

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  • Device for switching mobile voice communication under coal mine and access method thereof
  • Device for switching mobile voice communication under coal mine and access method thereof
  • Device for switching mobile voice communication under coal mine and access method thereof

Examples

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Example Embodiment

[0054] The method of voice access and seamless handover in underground coal mine is shown in Figure 1. The scheme of this method includes three parts: dispatch center 2; wireless base station 1; underground wireless paging device 3. among them:

[0055] 1. Wireless base station 1

[0056] For the wireless base station, after the message receiving module 1.1 receives the message, it sends the message to the judgment module 1.2. The judgment module 1.2 is responsible for checking the correctness of the received message, and forwards the message that can be received to the logic module 1.3, the logic module 1.3 According to the received message, output the message to be sent to the message sending module 1.4. At the same time, update the message that the judgment module 1.2 can receive next. After the message sending module 1.4 sends the message, turn on the timeout function of the timeout module 1.5, and the timeout time is the next one. The expected arrival time of the message. If ...

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Abstract

A switching device of mobile voice communication in the underground coal mine and a switch-in process relate to realize the voice switch-in in the underground coal mine, to finish the transfer calling to any underground voice paging device by an in-ground control center through a wireless base station, and simultaneously to finish the transfer calling to the in-ground control center by the underground voice paging device through the wireless base station. The switch-in process adopts a TCP/IP (transport control protocol/internet protocol) on the communication between the in-ground control center and the wireless base station, and adopts the wireless mobile communication based on the modulation of FSK on the communication between the wireless base station and the underground voice paging device. The device mainly comprises three parts, namely that an in-ground control center (2), a wireless base station (1) and an underground wireless paging device (3). The switch-in process comprises the contents of the three parts, namely a voice switch-in process of an in-ground control center, a voice switch-in process is that the paging device calls the in-ground control center and a pager voice communication non seam switching process.

Description

technical field [0001] The invention relates to the ability to realize underground voice access in coal mines, complete the relay call of any underground voice paging equipment by the above-ground dispatching center through a wireless base station, and simultaneously complete the transfer of underground voice paging equipment to call the above-ground dispatching center through the wireless base station. In this access method, TCP / IP (Transmission Control Protocol / Internet Protocol) network communication protocol is used for communication between the dispatching center on the well and the wireless base station, and wireless mobile communication based on FSK modulation is used for communication between the wireless base station and underground voice paging equipment. Background technique [0002] In recent years, the rapid development of the national economy has sharply increased the huge demand for energy such as coal and electricity. With the increase in the number of coal mi...

Claims

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Application Information

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IPC IPC(8): H04Q7/22H04Q7/38H04M7/00H04L29/06
Inventor 胡爱群黄杰傅伟涛汤凯旋张国建
Owner 江苏维尔科技有限公司
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