CN202889341U - Voice wired/wireless converter - Google Patents
Voice wired/wireless converter Download PDFInfo
- Publication number
- CN202889341U CN202889341U CN2012204836362U CN201220483636U CN202889341U CN 202889341 U CN202889341 U CN 202889341U CN 2012204836362 U CN2012204836362 U CN 2012204836362U CN 201220483636 U CN201220483636 U CN 201220483636U CN 202889341 U CN202889341 U CN 202889341U
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- voice
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Abstract
The utility model discloses a voice wired/wireless converter constituted by an audio frequency interface circuit, a message transmitting signal amplifying circuit, a message receiving signal amplifying circuit, a CVSD coding circuit, a control circuit, a radio frequency transceiving circuit, and a radio frequency switch circuit, and an antenna. The audio frequency interface circuit is connected with an/a airplane interphone/train interphone control box, a voice message can be amplified and coded, then a voice simulation signal can be converted to a voice digital signal, and then can be emitted by the antenna. The voice digital signal received by the antenna can be converted to the voice simulation signal after the modulation process and the decoding process, and then the voice simulation signal can be sent to the airplane interphone/train interphone control box by the audio frequency interface circuit. The CVSD coding circuit, the radio frequency transceiving circuit and the radio frequency switch circuit are controlled by the control circuit. When the number of the members of the airplane or the trains is increased, the converter can be used to solve the problem of the communication among members, in addition, the communication requirements under the special situations such as the emergency rescue, the communication outside the airplane or the train can be satisfied.
Description
Technical field:
The utility model belongs to communication technical field, is specifically related to a kind of speech wire/wireless adapter.
Background technology:
At present communication in the interphone of wired mode or the car (being called for short " machine logical/car is logical ") is used in the conversation between the member in the aircraft or in the car, usually according to member's situation in Che Nei or the machine dispose corresponding machine logical/the logical control box of car.When number of members increased on the machine or in the car, machine was logical/and configuration that car is logical can not satisfy the conversation requirement; In addition machine logical/car is logical to adopt the wired mode conversation, the member can only can not carry out mobile call in the fixed position during conversation, be not suitable for emergency management and rescue, machine is outer or the particular surroundings such as the outer contact of car under the conversation demand.
Summary of the invention:
The technical problem that the utility model solves: design a kind of speech wire/wireless adapter, can effectively solve the conversation contact problem between the member when member increases on machine or in the car, and can satisfy emergency management and rescue, machine is outer or the particular surroundings such as the outer contact of car under the conversation demand.
Technical solution of the present utility model: a kind of speech wire/wireless adapter, described adapter is comprised of audio interface circuit, telecommunication signal amplifying circuit, accepted call signal amplifying circuit, CVSD coding-decoding circuit, control circuit, radio-frequency (RF) transmit-receive circuit, radio-frequency switch circuit and antenna; Described audio interface circuit and machine be logical/and the logical control box earphone microphone group interface of car is connected, member on the machine or on the car is given orders or instructions to be sent to the CVSD coding-decoding circuit after sound amplifies by the telecommunication signal amplifying circuit carry out speech coding, voice analog signal is converted into the speech digital signal is sent to control circuit, control circuit is sent the speech digital signal into the radio-frequency (RF) transmit-receive circuit modulation and is passed through antenna transmission by radio-frequency switch circuit; Described antenna is sent into radio-frequency (RF) transmit-receive circuit with the speech digital signal that receives through radio-frequency switch circuit and is modulated, send into the CVSD coding-decoding circuit after speech digital signal after the modulation is processed through control circuit the speech digital signal is converted into voice analog signal, voice analog signal is sent into the accepted call signal amplifying circuit and is amplified, and is sent to machine by audio interface circuit again to lead to/the logical control box earphone microphone group interface of car; Described CVSD coding circuit, radio-frequency (RF) transmit-receive circuit and radio-frequency switch circuit are controlled by control circuit.
Described control circuit adopts the MSP430F149 single-chip microcomputer, and described CVSD coding circuit adopts the CMX649 codec chip, and described radio-frequency (RF) transmit-receive circuit adopts ADF7020 monolithic UHF radio transmitting and receiving chip.
The advantage that the utility model compared with prior art has and effect:
1, the utility model installs additional on machine or in the car conveniently, with on the machine or car inner joint annexation simple.
2, the utility model adopts time division duplex (Time Division Duplex, the TDD) communication technology, receives when can realize voice signal and emission, allows both call sides to talk simultaneously, and is easy to use.
3, the utility model can carry out mobile call, can satisfy the conversation demand under the particular surroundings such as the outer or outer contact of car of emergency management and rescue, machine.
Description of drawings:
Fig. 1 is the utility model circuit structure block diagram,
Fig. 2 is that the utility model uses state diagram.
Embodiment:
1,2 a kind of embodiment of the present utility model is described by reference to the accompanying drawings.
A kind of speech wire/wireless adapter is comprised of audio interface circuit, telecommunication signal amplifying circuit, accepted call signal amplifying circuit, CVSD coding-decoding circuit, control circuit, radio-frequency (RF) transmit-receive circuit, radio-frequency switch circuit and antenna; Described audio interface circuit and machine be logical/and the logical control box earphone microphone group interface of car is connected, member on the machine or on the car is given orders or instructions to be sent to the CVSD coding-decoding circuit after sound amplifies by the telecommunication signal amplifying circuit carry out speech coding, voice analog signal is converted into the speech digital signal is sent to control circuit, control circuit is sent voice-data signal into the radio-frequency (RF) transmit-receive circuit modulation and is passed through antenna transmission by radio-frequency switch circuit; Described antenna is sent into radio-frequency (RF) transmit-receive circuit with the speech digital signal that receives through radio-frequency switch circuit and is modulated, send into the CVSD coding-decoding circuit after speech digital signal after the modulation is processed through control circuit the speech digital signal is converted into voice analog signal, voice analog signal is sent into the accepted call signal amplifying circuit and is amplified, and is sent to machine by audio interface circuit again to lead to/the logical control box earphone microphone group interface of car; Described CVSD coding circuit, radio-frequency (RF) transmit-receive circuit and radio-frequency switch circuit are controlled by control circuit.
Described control circuit adopts the MSP430F149 single-chip microcomputer, and described CVSD coding circuit adopts the CMX649 codec chip, and described radio-frequency (RF) transmit-receive circuit adopts ADF7020 monolithic UHF radio transmitting and receiving chip.The utility model adopts self-powered, makes things convenient on the machine or on the car and uses, also can the employing machine on 24V (DC) power supply on 27V (DC) or the car.
The utility model by with machine logical/the logical control box earphone microphone group interface of car is crosslinked, realizes forwarding and the reception of the wired and wireless mode of transmitting-receiving speech.If speech wire/wireless adapter interface index satisfies machine to be led to/the logical former earphone microphone group interface of the control box index of car, just can be connected to machine by the audio frequency stube cable leads to/the logical former earphone microphone group interface of control box of car, increase the member and wear the speech Raido speakerphone, can the solution machine on or the conversation contact problem the when member increases in the car.The utility model adopts time division duplex (Time Division Duplex, the TDD) communication technology, receives when can realize voice signal and emission, allows both call sides to talk simultaneously.
Above-described embodiment is preferred embodiment of the present utility model, is not to limit the utility model practical range, so all equivalent variations of being done with the described content of the utility model claim all should be included within the utility model claim scope.
Claims (2)
1. speech wire/wireless adapter, it is characterized in that: described adapter is comprised of audio interface circuit, telecommunication signal amplifying circuit, accepted call signal amplifying circuit, CVSD coding-decoding circuit, control circuit, radio-frequency (RF) transmit-receive circuit, radio-frequency switch circuit and antenna; Described audio interface circuit and machine be logical/and the logical control box earphone microphone group interface of car is connected, member on the machine or on the car is given orders or instructions to be sent to the CVSD coding-decoding circuit after sound amplifies by the telecommunication signal amplifying circuit carry out speech coding, voice analog signal is converted into the speech digital signal is sent to control circuit, control circuit is sent the speech digital signal into the radio-frequency (RF) transmit-receive circuit modulation and is passed through antenna transmission by radio-frequency switch circuit; Described antenna is sent into radio-frequency (RF) transmit-receive circuit with the speech digital signal that receives through radio-frequency switch circuit and is modulated, send into the CVSD coding-decoding circuit after speech digital signal after the modulation is processed through control circuit the speech digital signal is converted into voice analog signal, voice analog signal is sent into the accepted call signal amplifying circuit and is amplified, and is sent to machine by audio interface circuit again to lead to/the logical control box earphone microphone group interface of car; Described CVSD coding circuit, radio-frequency (RF) transmit-receive circuit and radio-frequency switch circuit are controlled by control circuit.
2. speech wire/wireless adapter according to claim 1, it is characterized in that: described control circuit adopts the MSP430F149 single-chip microcomputer, described CVSD coding circuit adopts the CMX649 codec chip, and described radio-frequency (RF) transmit-receive circuit adopts ADF7020 monolithic UHF radio transmitting and receiving chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204836362U CN202889341U (en) | 2012-09-20 | 2012-09-20 | Voice wired/wireless converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204836362U CN202889341U (en) | 2012-09-20 | 2012-09-20 | Voice wired/wireless converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202889341U true CN202889341U (en) | 2013-04-17 |
Family
ID=48080727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204836362U Expired - Lifetime CN202889341U (en) | 2012-09-20 | 2012-09-20 | Voice wired/wireless converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202889341U (en) |
-
2012
- 2012-09-20 CN CN2012204836362U patent/CN202889341U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |
|
| CX01 | Expiry of patent term |