CN212572543U - Level triggers type intercom voice system - Google Patents

Abstract

The utility model discloses a level triggering interphone voice system, which comprises a control module and an interphone, and also comprises a 4G module which is connected with the control module by signals and is used for carrying out remote voice communication, an SIM card which is connected with the 4G module by signals, an antenna which is connected with the 4G module by signals, and an audio codec which is connected with the 4G module by signals and is used for coding and decoding received and sent analog voice signals, the audio codec is connected with the interphone through a coupling circuit for using and processing the analog voice input signal and the analog voice output signal, the coupling circuit and the control module detect the DC feed time sequence of the analog voice input signal and the analog voice output signal to determine the call detection and ring detection circuits of standby, calling, talking, hanging up and standby, thereby forming a voice control system. Through the utility model discloses can effectively carry out long-range calling, improve work efficiency and reliability, reduce cost.

Description

Level triggers type intercom voice system

Technical Field

The utility model belongs to the electronic communication field especially relates to a level triggers type intercom voice system.

Background

The interfaces of the level-triggered interphone are four lines, namely K (analog voice input), Y (analog voice output), 12V (power output) and GND (ground), and are divided into a high-level-triggered interphone and a low-level-triggered interphone, and the level-triggered interphone is mainly applied to elevators and buildings. The current voice function design of level trigger type intercom system still stays in traditional wired transmission mode, and it needs personnel to be on duty 24 hours in the on duty room to can't realize directly contacting the remote maintenance personnel under the emergency, thereby needs expensive cost of labor and maintenance cost. The functions of a main machine and an auxiliary machine of the current level triggering type intercom system are too simple, only when the intercom system is in a called state or in other two states, the auxiliary machine raises K to indicate that a host machine is called, the host machine rings after receiving the K, the host machine can not be finished until the host machine is off-hook, talking and on-hook, and remote calling of maintenance personnel or on-duty personnel can not be realized by modifying a newly added wireless end host machine. Therefore, in actual use, the voice control system cannot meet the functions of unattended operation and remote calling, cannot distinguish the conversation, on-hook and standby states of a mobile user, cannot realize remote incoming call control and local outgoing call, requires 24 hours of personnel to be attended, and has high labor cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a level triggers type intercom voice system can effectively carry out long-range calling, improves work efficiency and reliability, reduce cost.

In order to achieve the object, the utility model provides a level triggering type interphone voice system, which comprises a control module and an interphone, and further comprises a 4G module which is in signal connection with the control module and is used for carrying out remote voice call, a SIM card which is in signal connection with the 4G module, an antenna which is in signal connection with the 4G module, and an audio codec which is in signal connection with the 4G module and is used for coding and decoding received and sent analog voice signals, the audio codec is connected with the interphone through a coupling circuit for using and processing the analog voice input signal and the analog voice output signal, the coupling circuit and the control module detect the DC feed time sequence of the analog voice input signal and the analog voice output signal to determine the call detection and ring detection circuits of standby, calling, talking, hanging up and standby, thereby forming a voice control system.

Preferably, the coupling circuit comprises a first transformer and a second transformer, two ends of a primary side of the first transformer are respectively connected with the analog voice output end of the interphone and the call detection and ring detection circuit, one end of a secondary side of the first transformer is connected with a ground wire, and the other end of the secondary side of the first transformer is connected with the audio codec through a first resistance attenuation network for processing the tone quality so as to form an output processing circuit; the two ends of the secondary side of the second transformer are respectively connected with the analog voice input end of the interphone and the call detection and ringing detection circuit, one end of the primary side of the second transformer is connected with the ground wire, and the other end of the primary side of the second transformer is connected with the audio codec through a second resistance attenuation network for processing the tone quality, so that an input processing circuit is formed.

Preferably, a power amplification module for adjusting and controlling the call volume is arranged between the second transformer and the second resistance attenuation network.

Preferably, the power amplification module is an adjustable audio power amplifier.

Preferably, the call detection and ring detection circuit includes a first dc feed and detection module connected to the first transformer for detecting the level of the analog voice output signal, and a second dc feed and detection module connected to the second transformer for detecting the level of the analog voice input signal, and the first dc feed and detection module and the second dc feed and detection module respectively form an analog voice input and output level detection circuit with the control module.

Compared with the prior art, the utility model, its beneficial effect lies in:

the utility model discloses in through coupling circuit and call detection and ringing detection circuit's setting and 4G module's setting for can realize the function of standby, calling party, conversation, hanging set, standby through detecting simulation pronunciation input and output level, accomplish local intercom and call long-range mobile subscriber function, can effectively carry out long-range calling, improve work efficiency and reliability, reduce cost. The utility model discloses in can effectively improve the accuracy and the stability that detect through first direct current feed and detection module and second direct current feed and detection module. The utility model discloses well first resistance attenuation network, second resistance attenuation network and power amplification module's setting can effectively improve speech quality. The utility model discloses a voice function to level trigger type intercom system upgrades the transformation to realize the call between local and the long-range mobile user, realize elevator and building emergency call long-range dimension personnel or the personnel on duty, and needn't arrange personnel on duty at local computer lab in 24 hours, practiced thrift the human cost, realized high efficiency, promptness, the local intercom system's of completion upgrading transformation of low-cost, improve the economic benefits of property company and dimension company.

Drawings

FIG. 1 is a block diagram of the present invention;

fig. 2 is a schematic diagram of the structure of the middle coupling circuit and the call detection and ring detection circuit of the present invention.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.

As shown in FIGS. 1-2, the utility model provides a level triggers type intercom voice system, including control module 1 and intercom 8, still include the 4G module 3 that is used for carrying out long-range voice call with control module 1 signal connection and uses, SIM card 4 with 4G module 3 signal connection, antenna 5 with 4G module 3 signal connection and with 4G module 3 signal connection be used for receiving and the audio codec 6 that sends analog voice signal codec, connect through a coupling circuit 7 that is used for carrying out the operation to analog voice input signal and analog voice output signal between audio codec 6 and intercom 8, detect through a DC feed chronogenesis that is used for simulating voice input signal and analog voice output signal between coupling circuit 7 and control module 1 in order to confirm standby, calling party, conversation, on-hook, The standby call detection and ring detection circuit 2 thus forms a voice control system.

The coupling circuit 7 comprises a first transformer T1 and a second transformer T2, both ends of the primary side of the first transformer T1 are respectively connected with the analog voice output end of the interphone 8 and the call detection and ring detection circuit 2, one end of the secondary side of the first transformer T1 is connected with the ground wire and the other end is connected with the audio codec 6 through a first resistance attenuation network 71 for processing the tone quality so as to form an output processing circuit; the two secondary sides of the second transformer T2 are connected to the analog voice input terminal of the intercom 8 and the call detection and ring detection circuit 2, respectively, and one end of the primary side of the second transformer T2 is connected to the ground line and the other end is connected to the audio codec 6 through a second resistance attenuation network 72 for processing the sound quality to form an input processing circuit. A power amplification module 73 for adjusting and controlling the call volume is arranged between the second transformer T2 and the second resistance attenuation network 72. The power amplification module 73 is an adjustable audio power amplifier.

The call detection and ring detection circuit 2 comprises a first direct current feeding and detection module 21 connected with a first transformer T1 for detecting the level of the analog voice output signal and a second direct current feeding and detection module 22 connected with a second transformer T2 for detecting the level of the analog voice input signal, wherein the first direct current feeding and detection module 21 and the second direct current feeding and detection module 22 respectively form an analog voice input and output level detection circuit with the control module 1.

In this embodiment, the control module 1 is a CPU, the interphone 8 is a level trigger type interphone, and the first transformer T1 and the second transformer T2 both have specifications of 1:1 and 2.2 uH. When the telephone works, the call detection and ringing detection circuit 2 detects the detection of the analog voice input and output level in real time through the first direct current feeding and detection module 21 and the second direct current feeding and detection module 22 and sends the detection to the control module 1 for processing and finishing the sequential control logic of voice, the analog voice input and output levels are high levels during standby, when the analog voice output level of the auxiliary machine is changed into low level, the auxiliary machine remotely calls a host user through the 4G module 3 and returns ring, simultaneously the analog voice output level is changed into high level, the analog voice input level is changed into level to wait for answering the call, and after the call is ended or no call is answered, the analog voice input and output level is averagely changed into high level for standby; when the 4G module 3 receives an incoming call, the analog voice output level is changed into a high level, the analog voice input level is changed into a level to wait for answering the call, and the analog voice input and output level is averagely changed into a high level to be standby after the call is ended or the call is not answered. Therefore, remote communication can be effectively realized, the working efficiency and reliability are improved, and the cost is reduced.

The foregoing is merely a preferred embodiment of the invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the invention as expressed in the above teachings or as known to the person skilled in the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (5)

1. The utility model provides a level triggers type intercom voice system, includes control module (1) and intercom (8), its characterized in that, still include with control module (1) signal connection be used for carrying on long-range voice conversation 4G module (3) of using, with SIM card (4) of 4G module (3) signal connection, with antenna (5) of 4G module (3) signal connection and with 4G module (3) signal connection be used for to the received and audio codec (6) of sending analog voice signal, connect through a coupling circuit (7) that is used for carrying out the operation to analog voice input signal and analog voice output signal between audio codec (6) and intercom (8), through a DC feed chronogenesis that is used for carrying on analog voice input signal and analog voice output signal detects with confirming standby between coupling circuit (7) and control module (1), The calling, talking, hanging up, standby calling detection and ringing detection circuit (2) forms a voice control system.

2. A level triggered intercom voice system as claimed in claim 1, characterized in that said coupling circuit (7) comprises a first transformer (T1) and a second transformer (T2), both ends of the primary side of said first transformer (T1) are connected to the analog voice output of the intercom (8) and to the call detection and ringing detection circuit (2), respectively, one of the secondary sides of said first transformer (T1) is connected to ground and the other to the audio codec (6) through a first resistive attenuation network (71) for processing the sound quality to form an output processing circuit; two ends of the secondary side of the second transformer (T2) are respectively connected with the analog voice input end of the interphone (8) and the call detection and ring detection circuit (2), one end of the primary side of the second transformer (T2) is connected with the ground wire, and the other end of the primary side of the second transformer is connected with the audio codec (6) through a second resistance attenuation network (72) for processing the tone quality so as to form an input processing circuit.

3. The level-triggered intercom voice system as claimed in claim 2, wherein a power amplification module (73) for adjusting and controlling the volume of the conversation is disposed between said second transformer (T2) and said second resistive attenuation network (72).

4. The level-triggered intercom voice system as claimed in claim 3, wherein said power amplification module (73) is an adjustable audio power amplifier.

5. A level triggered intercom speech system according to claim 2, characterized in that said call detection and ringing detection circuit (2) comprises a first dc feeding and detection module (21) connected to a first transformer (T1) for detecting the analog speech output signal level and a second dc feeding and detection module (22) connected to a second transformer (T2) for detecting the analog speech input signal level, said first dc feeding and detection module (21) and said second dc feeding and detection module (22) forming respectively an analog speech input and output level detection circuit with said control module (1).

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