CN202495944U - Subsystem of downhole broadcasting substation - Google Patents

Abstract

The utility model discloses an underground broadcasting substation subsystem, comprising: a MiC module, used for voice pickup; a communication module, used for communicating with the outside world; a power amplifier module, used for voice power amplification; a power supply module, used for other modules Provide power; the voice processing module is used for voice compression and decompression; among them, the MiC module is connected to the voice processing module, and then connected to the power amplifier module, and the communication module is connected to the voice processing module. The utility model can be used for effective emergency broadcasting when coal mining enterprises encounter unexpected events.

Description

An underground broadcast substation subsystem

technical field

The utility model relates to the field of security technology, in particular to an underground broadcast substation subsystem.

Background technique

Safety accidents occur frequently in traditional coal mines. Due to backward equipment, there is no effective sub-station sub-system for underground broadcasting. The original extensive personnel management mode in coal mines lacks the ability of underground personnel to respond to emergencies, cannot effectively protect the life safety of underground personnel, and cannot make timely and effective responses to accidents that may occur at any time.

Utility model content

The technical problem solved by the utility model is how to improve the ability to deal with emergencies, and how to make timely and effective responses to sudden accidents.

In order to solve the above problems, the utility model provides an underground broadcast substation subsystem, including:

MiC module for voice pickup;

The communication module is used for communicating with the outside world;

Power amplifier module, used for voice power amplification;

The power module is used to provide power to other modules;

Voice processing module, used for voice compression and decompression;

Wherein, the MiC module is connected to the voice processing module, and then connected to the power amplifier module, and the communication module is connected to the voice processing module.

Due to the adoption of digital voice broadcasting and transmission through the network, when a coal mining enterprise encounters an emergency, it can notify the underground operators in the simplest and fastest way, and guide the relevant personnel to evacuate urgently or take corresponding safety measures, so as to achieve timely And effective emergency broadcasting to minimize secondary impacts in the disaster rescue process.

Description of drawings

A more complete and better understanding of the invention, and many of its attendant advantages, will be readily appreciated by reference to the following detailed description when considered in conjunction with the accompanying drawings, but the accompanying drawings illustrated herein are intended to provide a further understanding of the invention , constituting a part of the utility model, the exemplary embodiment of the utility model and its description are used to explain the utility model, and do not constitute an improper limitation of the utility model, wherein:

Figure 1 is a block diagram of the underground broadcast substation.

Detailed ways

Embodiments of the present utility model are described below with reference to FIG. 1 .

When a coal mining enterprise encounters an emergency, it is hoped to notify the underground operators in the simplest and fastest way, and guide the relevant personnel to evacuate or take corresponding safety measures, so as to achieve timely and effective emergency broadcasting and minimize disasters Secondary effects during rescue.

Digital broadcasting is the digitization of broadcasting signals (A/D conversion). It is a digital audio file (such as MP3) or a digital audio file stored in a memory after collecting, quantizing, encoding, and compressing an analog audio signal according to a certain algorithm. According to the transmission protocol, the audio file is transmitted to the broadcast receiving end in the form of data packets, and then the broadcast terminal performs D/A conversion and restores it to an audio signal, which is amplified by the power amplifier to drive the speaker to work.

As shown in Figure 1, an underground broadcast substation subsystem includes:

MiC module 1 for voice pickup;

Communication module 2, used for communicating with the outside world;

Power amplifier module 3, used for voice power amplification;

The power module 4 is used to provide power to other modules;

Voice processing module 5, used for voice compression and decompression;

Wherein, the MiC module 1 is connected to the voice processing module 5 , and then connected to the power amplifier module 3 , and the communication module 2 is connected to the voice processing module 5 .

Embodiment one:

Refer to Fig. 1, in which, the substation sub-system of underground broadcasting uses Sunplus 16-bit voice processing chip SPCE061A single-chip microcomputer as the main control voice processing module 5 chip, adopts Sunplus special audio compression algorithm to realize compression encoding of voice data, receiving and decoding The data is sent to the power amplifier module 3 for playback, which has the characteristics of simple operation and large output volume. Usually the speaker is in the answering state. When there is an audio signal on the audio cable, the power amplifier is turned on and the sound is played directly; when the button is pressed, on the one hand, it will send a button alarm to the dispatcher; on the other hand, it can speak to the dispatcher; built-in intrinsically safe Backup power supply, can talk continuously for 2 hours after power failure. The underground broadcast substation is mainly composed of a power supply module 4 , a power amplifier module 3 , a voice processing module 5 , a communication module 2 and a MIC module 1 . SPCE061A has built-in microphone input channel of automatic gain control amplifier (AGC) specially used for voice signal acquisition. The voice signal is converted into an electrical signal by the microphone, the DC component is isolated by the DC blocking capacitor, and then input to the internal preamplifier. The power amplifier module is mainly a two-stage power amplifier composed of two pieces of TDA2003. The output power of the module is greater than 10W, and the decibel value can reach 120dB by using a 10W speaker, which can effectively ensure the coverage of the output voice and avoid the existence of communication blind spots.

As mentioned above, the embodiment of the present invention has been described in detail, but it is obvious to those skilled in the art that many modifications can be made as long as the inventive points and effects of the present invention are not substantially deviated from. Therefore, such modified examples are all included in the protection scope of the present invention.

Claims (6)

1. the substation subsystem is broadcasted in a down-hole, it is characterized in that: comprising:

The MiC module is used for voice and picks up;

Communication module is used for and extraneous communication;

Power amplifier module is used for phonetic speech power and amplifies;

Power module is used for power supply to other module being provided;

Speech processing module is used for compress speech, decompression;

Wherein, the MiC module connects speech processing module, links power amplifier module again, and communication module links to each other with speech processing module.

2. a kind of according to claim 1 down-hole broadcasting substation subsystem is characterized in that said speech processes mould adopts 16 to be single-chip microcomputer.

3. a kind of according to claim 1 down-hole broadcasting substation subsystem is characterized in that said speech processes mould comprises automatic gain control amplifier.

4. a kind of according to claim 1 down-hole broadcasting substation subsystem is characterized in that the MiC module inserts speech processing module after stopping direct current.

5. like the said a kind of down-hole broadcasting substation subsystem of claim 4, it is characterized in that, insert speech processing module before earlier through preamplifier.

6. a kind of according to claim 1 down-hole broadcasting substation subsystem is characterized in that said power amplifier module is the two-stage power amplifier.

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