CN210351149U - Intercom with relay function - Google Patents
Intercom with relay function Download PDFInfo
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- CN210351149U CN210351149U CN201921167440.0U CN201921167440U CN210351149U CN 210351149 U CN210351149 U CN 210351149U CN 201921167440 U CN201921167440 U CN 201921167440U CN 210351149 U CN210351149 U CN 210351149U
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- switching circuit
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Abstract
The utility model relates to the technical field of communication devices, in particular to an interphone with a relay function, which comprises a casing, a microphone and a loudspeaker which are arranged in the casing, and the technical proposal is characterized in that a public network module and a private network module are also arranged in the casing, the public network module is electrically connected with the private network module, the public network module and the private network module are respectively correspondingly connected between the microphone and the loudspeaker, a switching component for switching the state of the interphone is arranged in the casing, the normal use of the interphone in a private network mode or a public network mode is realized by the matching of the public network module and the private network module which are arranged in the casing of the interphone with the microphone and the loudspeaker, the transmission of data between the public network module and the private network module can be realized by the switching component, and then the relay mode of the interphone is switched, the method realizes the intercommunication of the public network and the private network and has the effect of convenient use.
Description
Technical Field
The utility model relates to a communication device technical field, in particular to intercom with relay function.
Background
The interphone is named as two way radio in English, is a two-way mobile communication tool, can be used for communication without any network support, does not generate telephone charge, and is suitable for occasions with relatively fixed and frequent communication.
Generally, the interphone is divided into two forms of a public network interphone and a private network interphone, the public network interphone uses a network of an operator, communication can be carried out in places with operator signals, even national communication can be realized, and the shortcoming is that communication cost needs to be paid; the private network interphone transmits to another interphone for receiving, establishes a signal channel by itself, does not need other support, but has limitation on communication distance, and the communication distance is about from hundreds of meters to kilometers according to different use environments and transmitting power.
In order to save communication cost and achieve stable communication, a public network and private network interworking link machine is needed to implement communication connection between a private network and a public network in the prior art. The public network and private network intercommunication link machine is communicated with the private network interphone through operator signals, meanwhile, the public network and private network intercommunication link machine is connected with the private network interphone through wires, and therefore intercommunication between the public network interphone and the private network interphone is achieved.
However, the public network and private network interworking link is usually large in size, inconvenient to use, and incapable of moving as conveniently as an interphone, and further improvement is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an intercom with relay function through improving ordinary intercom, realizes public network private network intercommunication, and has the effect convenient to use.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides an intercom with relay function, includes the casing, installs microphone and the speaker in the casing, still be provided with public network module and private network module in the casing, public network module and private network module electricity are connected, public network module with the private network module corresponds respectively and connects between microphone and speaker, and is provided with the switching component who is used for switching the intercom state in the casing.
Through the technical scheme, through the cooperation of public network module and private network module respectively with microphone and speaker, realize the normal use of intercom under private network or public network mode, and after public network module and private network module electricity are connected, realize the conveying of signal between public network module and the private network module, thereby be convenient for the private network module to convey in the public network after with data transfer public network module, also be convenient for the private network module convey in the private network after with data transfer private network, realize the relay mode of intercom, and realize the state switching of this intercom through the switching module, realize public network private network intercommunication through improving ordinary intercom, have convenient to use's effect.
The utility model discloses further set up to: the switching component comprises a private network/public network mode switching module and a relay mode switching module.
Through the technical scheme, the switching of the current working mode of the interphone is realized through the connection relation between the public network module and the private network module, and between the microphone and the loudspeaker by the private network/public network mode switching module and the relay mode switching module in the switching assembly.
The utility model discloses further set up to: the private network/public network mode switching module comprises a first switching circuit and a second switching circuit;
a first switching circuit, a first end of which is coupled to the microphone, and a second end and a third end of which are coupled to the input ends of the public network module and the private network module respectively;
and a first end of the second switching circuit is coupled to the loudspeaker, and a second end and a third end of the second switching circuit are respectively coupled to the output ends of the public network module and the private network module.
Through the technical scheme, the first switching circuit and the second switching circuit are used for switching the connection relation between the private network module and the public network module and between the microphone and the loudspeaker respectively, and the interphone is used in the private network mode or the public network mode.
The utility model discloses further set up to: the relay mode switching module comprises a third switching circuit and a fourth switching circuit;
the third switching circuit is coupled between the output end of the public network module and the input end of the private network module;
and the fourth switching circuit is coupled between the output end of the private network module and the input end of the public network module.
Through the technical scheme, the third switching circuit and the fourth switching circuit are used for switching the connection relation between the private network module and the public network module, and the interphone is used in the relay mode.
The utility model discloses further set up to: the public network module adopts a chip U9507C.
The utility model discloses further set up to: the private network module selects a chip DMR-001.
Through the technical scheme, the data transmission quality of the chip U9507C and the chip DMR-001 is high, the cost is low, and the cost is reduced and the popularization is facilitated.
The utility model discloses further set up to: the first switching circuit and the second switching circuit both use the chip STG 719.
The utility model discloses further set up to: the third switching circuit and the fourth switching circuit both use the chip STG 719.
Through the technical scheme, the chip STG719 is manufactured by adopting a silicon gate C2MOS technology, is very suitable for portable application, has extremely low on-resistance flatness, high switching speed and anti-static discharge protection, improves the mode switching efficiency of the interphone and improves the use safety of the interphone.
To sum up, the utility model discloses following beneficial effect has:
through the public network module and the private network module that set up in the casing of intercom correspond with the cooperation of microphone and speaker, realize the intercom in the normal use under private network mode or public network mode, and can realize the transmission of the data between public network module and the private network module through the switching component, realize the switching of the relay mode of intercom then, realize public network private network intercommunication, and have the effect convenient to use.
Drawings
FIG. 1 is an overall schematic view of the present embodiment;
fig. 2 is a circuit diagram of a first switching circuit and a second switching circuit in the present embodiment;
fig. 3 is a circuit diagram of a third switching circuit and a fourth switching circuit in the present embodiment.
Reference numerals: 1. a housing; 2. a microphone; 3. a speaker; 4. a public network module; 5. a private network module; 6. a switching component; 7. a private network/public network mode switching module; 8. a relay mode switching module; 9. a first switching circuit; 10. a second switching circuit; 11. a third switching circuit; 12. and a fourth switching circuit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
An intercom having a relay function, as shown in fig. 1, includes a housing 1, a microphone 2 and a speaker 3 installed in the housing 1, the microphone 2 is used for collecting user's voice, and the speaker 3 is used for emitting voice.
A public network module 4 and a private network module 5 are further arranged in the machine shell 1, wherein the public network module 4 selects a chip U9507C and a corresponding peripheral circuit, and the private network module 5 selects a chip DMR-001 and a corresponding peripheral circuit. The DMR has the advantages of efficient utilization of frequency spectrum resources, large-area networking mode and compatibility with simulation conventions. The system has the advantages of rich and expandable service functions, backward compatibility, lower system and terminal cost, higher network construction speed and lower overall operation and maintenance cost.
The normal use of the interphone in a private network or public network mode is realized through the matching of the public network module 4 and the private network module 5 with the microphone 2 and the loudspeaker 3 respectively;
after the public network module 4 and the private network module 5 are electrically connected, the transmission of signals between the public network module 4 and the private network module 5 is realized, so that the private network module 5 transmits data to the public network module 4 and then transmits the data in the public network, and the private network module 5 also transmits the data to the private network and then transmits the data in the private network, thereby realizing the relay mode of the interphone.
As shown in fig. 2 and 3, the switching component 6 includes a private/public network mode switching module 7 and a relay mode switching module 8.
As shown in fig. 2, the private/public network mode switching module 7 includes a first switching circuit 9 and a second switching circuit 10;
a first switching circuit 9, a first end of which is coupled to the microphone 2, and a second end and a third end of which are coupled to the input ends of the public network module 4 and the private network module 5, respectively;
a first terminal of the second switching circuit 10 is coupled to the speaker 3, and a second terminal and a third terminal thereof are coupled to the output terminals of the public network module 4 and the private network module 5, respectively.
The first switching circuit 9 and the second switching circuit 10 are used for switching the connection relation between the private network module 5 and the public network module 4 and the microphone 2 and the loudspeaker 3 respectively, and the interphone is used in a private network mode or a public network mode.
As shown in fig. 3, the relay mode switching module 8 includes a third switching circuit 11 and a fourth switching circuit 12;
a third switching circuit 11 coupled between the output terminal of the public network module 4 and the input terminal of the private network module 5;
a fourth switching circuit 12 coupled between the output terminal of the private network module 5 and the input terminal of the public network module 4.
The third switching circuit 11 and the fourth switching circuit 12 are used for switching the connection relation between the private network module 5 and the public network module 4, so that the interphone is used in a relay mode. In fig. 2, MIC denotes a microphone 2, AUDIO denotes a speaker 3, DMR denotes a private network module 5, MODEM denotes a public network module 4, MODE denotes a control terminal for switching circuit connection, and BIAS denotes BIAS voltage.
The first switching circuit 9, the second switching circuit 10, the third switching circuit 11, and the fourth switching circuit 12 all use the chip STG719 and correspond to peripheral circuits. The state of the control end of the 1 pin in the four chips STG719 is configured to realize the state switching of the corresponding switching circuit, namely, the connection relation between the public network module 4 and the private network module 5 and between the microphone 2 and the loudspeaker 3 is realized, so that the switching of the current working mode of the interphone is realized. When in the private network or public network mode, the first switching circuit 9 and the second switching circuit 10 need to be in the on state at the same time, so the pins 1 of the chips STG719 in the first switching circuit 9 and the second switching circuit 10 are connected to the same control terminal, and the pins 1 of the chips STG719 in the third switching circuit 11 and the fourth switching circuit 12 are connected to different control terminals.
The control terminal of the 1 pin of the chip STG719 in the first switching circuit 9 and the chip STG719 in the second switching circuit 10 are the same control terminal.
The working state is as follows:
in private network/public network mode: the first switching circuit 9 and the second switching circuit 10 are turned on, and the third switching circuit 11 and the fourth switching circuit 12 are turned off;
in the intermediate mode: the first switching circuit 9 and the second switching circuit 10 are turned off, and the first switching circuit 9 and the second switching circuit 10 are turned on.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides an intercom with relay function, includes casing (1), installs microphone (2) and speaker (3) in casing (1), its characterized in that: still be provided with public network module (4) and private network module (5) in casing (1), public network module (4) and private network module (5) electricity are connected, public network module (4) with private network module (5) correspond respectively and connect between microphone (2) and speaker (3), and are provided with switching component (6) that are used for switching the intercom state in casing (1).
2. The interphone with the relay function according to claim 1, characterized in that: the switching component (6) comprises a private network/public network mode switching module (7) and a relay mode switching module (8).
3. The interphone having the relay function according to claim 2, characterized in that: the private network/public network mode switching module (7) comprises a first switching circuit (9) and a second switching circuit (10);
a first switching circuit (9), a first end of which is coupled to the microphone (2), and a second end and a third end of which are coupled to the input ends of the public network module (4) and the private network module (5), respectively;
and a first end of the second switching circuit (10) is coupled to the loudspeaker (3), and a second end and a third end of the second switching circuit are respectively coupled to the output ends of the public network module (4) and the private network module (5).
4. The interphone having the relay function according to claim 2, characterized in that: the relay mode switching module (8) comprises a third switching circuit (11) and a fourth switching circuit (12);
a third switching circuit (11) coupled between the output terminal of the public network module (4) and the input terminal of the private network module (5);
and the fourth switching circuit (12) is coupled between the output end of the private network module (5) and the input end of the public network module (4).
5. The interphone with the relay function according to claim 1, characterized in that: the public network module (4) selects a chip U9507C.
6. The interphone with the relay function according to claim 1, characterized in that: the private network module (5) selects a chip DMR-001.
7. The interphone with the relay function according to claim 3, characterized in that: the first switching circuit (9) and the second switching circuit (10) both use a chip STG 719.
8. The interphone with the relay function according to claim 4, characterized in that: the third switching circuit (11) and the fourth switching circuit (12) both use a chip STG 719.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921167440.0U CN210351149U (en) | 2019-07-23 | 2019-07-23 | Intercom with relay function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921167440.0U CN210351149U (en) | 2019-07-23 | 2019-07-23 | Intercom with relay function |
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| Publication Number | Publication Date |
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| CN210351149U true CN210351149U (en) | 2020-04-17 |
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| CN201921167440.0U Active CN210351149U (en) | 2019-07-23 | 2019-07-23 | Intercom with relay function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112261593A (en) * | 2020-10-15 | 2021-01-22 | 上海三吉电子工程有限公司 | Fusion talkback terminal based on intelligent shoulder microphone and application thereof |
| CN117082460A (en) * | 2023-10-16 | 2023-11-17 | 深圳市联科通信有限公司 | Public-private network signal sharing method, double-network interphone and mixed networking interphone system |
-
2019
- 2019-07-23 CN CN201921167440.0U patent/CN210351149U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112261593A (en) * | 2020-10-15 | 2021-01-22 | 上海三吉电子工程有限公司 | Fusion talkback terminal based on intelligent shoulder microphone and application thereof |
| CN117082460A (en) * | 2023-10-16 | 2023-11-17 | 深圳市联科通信有限公司 | Public-private network signal sharing method, double-network interphone and mixed networking interphone system |
| CN117082460B (en) * | 2023-10-16 | 2024-01-26 | 深圳市联科通信有限公司 | Public-private network signal sharing method, double-network interphone and mixed networking interphone system |
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