CN201312389Y - Synchronous data voice transmission device - Google Patents
Synchronous data voice transmission device Download PDFInfo
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- CN201312389Y CN201312389Y CNU2008201571344U CN200820157134U CN201312389Y CN 201312389 Y CN201312389 Y CN 201312389Y CN U2008201571344 U CNU2008201571344 U CN U2008201571344U CN 200820157134 U CN200820157134 U CN 200820157134U CN 201312389 Y CN201312389 Y CN 201312389Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a synchronous data voice transmission device, which can make the equipment with low data speed and small communication range own simple structure, low cost and low power consumption. The technical scheme is that the synchronous data voice transmission device comprises an antenna, a Zigbee module for transmitting and receiving radio signals and organizing network based via the technique on Zigbee standard, an DSP module for data processing and control, to complete synchronous data voice transmission protocol, an A/D converter for sampling voice signals, a sounder for compressing the sampled signals of the A/D converter and outputting the compressed signals to the DSP module and decompressing the signals of the DSP module and outputting the decompressed signals to the A/D converter to process D/A conversion, and a data transmission interface for receiving input data signals. The synchronous data voice transmission device is applied in communication field.
Description
Technical field
The utility model relates to a kind of signal transmitting apparatus, relates in particular to a kind of simultaneous data and speech transmission device.
Background technology
Along with developing rapidly of science and technology, the various communication technologys continue to bring out, GSM, 3G, Wi-Fi, wireless technologys such as bluetooth more and more are familiar with by people and are used, but use the device systems of these technology very complicated, and power consumption is big, cost is very high, and inconvenience is used in some low data rates and the little occasion of communication range, for example intelligent transportation, wired home, environmental monitoring, fire-fighting command, individual soldier's communication etc.The Zigbee technology just in time can satisfy the requirement of systems such as the individual soldier communicates by letter, fire-fighting command, wired home as a kind of low complex degree, low-power consumption with low rate wireless connect technology cheaply, and is more and more paid attention to by people.
Zigbee is a kind of standard of being developed formulation by Zigbee alliance and IEEE802.15.4 working group jointly.IEEE802.15.4 working group mainly is responsible to define the agreement of Zigbee physical layer and MAC layer, and Zigbee alliance then is responsible for higher layer applications and marketing, has now attracted the adding of last hundred tame chip companies, wireless device company.
The major advantage of Zigbee technology has:
1) low in energy consumption: because the work period is very short, the power consumption of receiving and sending messages is lower, and has adopted park mode, so the Zigbee technology can guarantee that 2 joint No.5 cell supports reach the service time about 6 months to 2 years.
2) cost is low: the complexity of equipment is low, and the Zigbee agreement is exempted from patent fee.The working frequency range of Zigbee is the 2.4GHz that exempts from license.
3) reliable and secure: adopted collision-avoidance mechanism, simultaneously for to need the communication service of fixed-bandwidth to reserve dedicated time slot, competition and conflict when having avoided sending data.The MAC layer has adopted the data transmission mechanism of full confirmation, and the packet of each transmission all must be waited for recipient's affirmation information.Zigbee provides data integrity inspection and authentication functions, and cryptographic algorithm adopts AES128, and each application simultaneously can be determined its security attribute flexibly.
4) time delay is short: at delay sensitive should be used as optimization, communication delay and the time delay that activates from resting state are all very short.Equipment search time delay representative value is 30ms, and it is 15ms that dormancy activates the time delay representative value, and vehicular equipment channel access delay is 15ms.
5) network capacity is big: Zigbee can adopt star, netted, String structure networking, and can connect to form bigger network configuration by arbitrary node.Theoretically, its attachable node is nearly 64000.1 Zigbee network can hold 254 slave units and 1 main equipment at most, can have maximum 100 Zigbee networks in 1 zone simultaneously
6) global general-use and intact opening: the Zigbee standard agreement makes communicating by letter of Zigbee equipment room become easy to do thing.
7) self-organizing of network, self-healing ability are strong: need not manual intervention, structurized network is formed in the existence that network node can other nodes of perception, and definite annexation; Increase or delete a node, the position change of node, node breaks down etc., and network can self-regeneration, and network topology structure is adjusted accordingly, and guarantees that whole system still can operate as normal.
The Zigbee technology is low complex degree, low-power consumption and low rate wireless technology, and at present the occasion at low speed data is extensive use of, because limited bandwidth, it is more rare that the Zigbee technology is used for transporting speech information, and it is then more rare to be used for carrying out simultaneous data and speech transmission.
The utility model content
The purpose of this utility model is to address the above problem, and a kind of simultaneous data and speech transmission device is provided, and makes to become the equipment in the little occasion of low data rate and communication range of being applied in structure is simpler, cost is lower, power consumption is littler.
The technical solution of the utility model is: the utility model has disclosed a kind of simultaneous data and speech transmission device, wherein, comprising:
Antenna;
The Zigbee module is carried out radiofrequency signal transmitting-receiving and networking based on the Zigbee standard techniques;
The DSP module is carried out data processing and control, finishes the simultaneous data and speech transmission agreement;
A/D converter is sampled to voice signal;
Vocoder on the one hand carries out exporting this DSP module to after the voice compression to the sampled signal of this A/D converter, on the other hand the signal of this DSP module is carried out exporting this A/D converter to after speech decompresses and carries out digital-to-analogue conversion;
Data transmission interface receives the data-signal of importing.
Above-mentioned simultaneous data and speech transmission device, wherein, this data transmission interface is the RS232 level transferring chip.
Above-mentioned simultaneous data and speech transmission device, wherein, this device also comprises:
Audio frequency amplifier and power amplifier module carry out power amplification to the analog voice signal of exporting after this A/D converter digital-to-analogue conversion.
Above-mentioned simultaneous data and speech transmission device, wherein, this device also comprises:
Power management module is for whole device provides power supply.
Above-mentioned simultaneous data and speech transmission device, wherein, this DSP module also connects the DSP clock module.
Above-mentioned simultaneous data and speech transmission device, wherein, this vocoder is connected vocoder and A/D converter clock module jointly with this A/D converter.
Above-mentioned simultaneous data and speech transmission device, wherein, integrated RF unit in this Zigbee module.
Above-mentioned simultaneous data and speech transmission device, wherein, this A/D converter comprises digital to analog converter and analog to digital converter.
The utility model contrast prior art has following beneficial effect: simultaneous data and speech transmission device of the present utility model has been used the Zigbee module, can carry out quickly networking easily, and self-organizing, the self-healing ability of network is strong, network capacity is big, fail safe good.Integrated RF unit in the Zigbee module has reduced the volume that installs.And whole device transmission range is far away, can carry out the point-to-point transmission and the broadcast transmitted of data and speech, and can carry out simultaneous data and speech transmission.Owing to adopted Zigbee module, the compact conformation of device and low in energy consumption.Device of the present utility model also can be connected with various sensor assemblies with the GPS module easily, forms outdoor navigation system, environmental monitoring system and physiological monitoring system.
Description of drawings
Fig. 1 is the schematic diagram of the preferred embodiment of simultaneous data and speech transmission device of the present utility model.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 1 shows the principle of the preferred embodiment of simultaneous data and speech transmission device of the present utility model.See also Fig. 1, the device of present embodiment comprises antenna 100, Zigbee module 11, DSP module 12, A/D converter 14, vocoder 13, data transmission interface 16, audio frequency amplifier and power amplifier module 15, power management module 19, DSP clock module 17 and vocoder and A/D converter clock module 18.
Wherein Zigbee module 11 wireless technology that is based on the Zigbee standard is carried out radiofrequency signal transmitting-receiving and networking.DSP module 12 is carried out data processing and control, finishes the simultaneous data and speech transmission agreement.Integrated radio frequency unit in Zigbee module 11.A/D converter 14 comprises a digital to analog converter and an analog to digital converter, by analog to digital converter voice signal is carried out digital sample on the one hand, and the signal of DSP module 12 being exported by digital to analog converter carries out digital-to-analogue conversion on the other hand.Vocoder 13 carries out exporting DSP module 12 to after the voice compression to the sampled signal of A/D converter 14 on the one hand, and the signal to DSP module 12 carries out exporting A/D converter 14 to after speech decompresses on the other hand.The analog voice signal of exporting after 15 pairs of A/D converter 14 digital-to-analogue conversions of audio frequency amplifier and power amplifier module carries out power amplification.Power management module 19 provides power supply for whole device.DSP clock module 17 connects DSP module 12, for DSP module 12 provides clock signal.Vocoder is connected vocoder 13 and A/D converter 14 simultaneously with A/D converter clock module 18, for vocoder 13 and A/D converter 14 provide clock signal.In the present embodiment, data transmission interface 16 is RS232 level transferring chip.This device adopts PTT (Push-To-Talk) mode to carry out voice communication, promptly one can converse by the PPT key.
The course of work of the device of present embodiment is: voice signal enters the audio frequency amplifier by microphone and power amplifier module 15 carries out the audio frequency amplification, and output signal enters A/D converter 14 and samples, and sampled data inputs to vocoder 13 and carries out compress speech.Vocoder 13 and A/D converter 14 adopt same clock, and vocoder 13 and A/D converter 14 carry out initial configuration.
The voice signal of vocoder 14 outputs enters DSP module 12, data-signal is exported to DSP module 12 by data transmission interface 16 (being the RS232 level transferring chip), voice signal and data-signal form is according to the rules packed, data after the packing enter Zigbee module 11, Zigbee module 11 is handled according to the data format of input and the parameter of setting, sends into antenna 100 then and sends.
During reception, Zigbee module 11 receives wireless signal by antenna 100, enters DSP module 12 after treatment and unpacks, and the data based form after unpacking is sent into data-interface and cable voice port respectively.If data then input to PC or other data equipments by data transmission interface 16 (being the RS232 level transferring chip).If speech then enters vocoder 13 and carries out the speech decompression, the signal behind the decompress(ion) enters A/D converter 14 and carries out digital-to-analogue conversion, and the analog voice signal of output carries out power amplification through audio frequency amplifier and power amplifier module 15, drives earphone or loud speaker then.Power management module 19 provides power supply for whole device.
The foregoing description provides to those of ordinary skills and realizes or use of the present utility model; those of ordinary skills can be under the situation that does not break away from invention thought of the present utility model; the foregoing description is made various modifications or variation; thereby protection range of the present utility model do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (8)
1, a kind of simultaneous data and speech transmission device is characterized in that, comprising:
Antenna;
The Zigbee module is carried out radiofrequency signal transmitting-receiving and networking based on the Zigbee standard techniques;
The DSP module is carried out data processing and control, finishes the simultaneous data and speech transmission agreement;
A/D converter is sampled to voice signal;
Vocoder on the one hand carries out exporting this DSP module to after the voice compression to the sampled signal of this A/D converter, on the other hand the signal of this DSP module is carried out exporting this A/D converter to after speech decompresses and carries out digital-to-analogue conversion;
Data transmission interface receives the data-signal of importing.
2, simultaneous data and speech transmission device according to claim 1 is characterized in that, this data transmission interface is the RS232 level transferring chip.
3, simultaneous data and speech transmission device according to claim 2 is characterized in that, this device also comprises:
Audio frequency amplifier and power amplifier module carry out power amplification to the analog voice signal of exporting after this A/D converter digital-to-analogue conversion.
4, simultaneous data and speech transmission device according to claim 3 is characterized in that, this device also comprises:
Power management module is for whole device provides power supply.
5, simultaneous data and speech transmission device according to claim 4 is characterized in that, this DSP module also connects the DSP clock module.
6, simultaneous data and speech transmission device according to claim 5 is characterized in that, this vocoder is connected vocoder and A/D converter clock module jointly with this A/D converter.
7, simultaneous data and speech transmission device according to claim 1 is characterized in that, integrated RF unit in this Zigbee module.
8, simultaneous data and speech transmission device according to claim 1 is characterized in that, this A/D converter comprises digital to analog converter and analog to digital converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201571344U CN201312389Y (en) | 2008-12-16 | 2008-12-16 | Synchronous data voice transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201571344U CN201312389Y (en) | 2008-12-16 | 2008-12-16 | Synchronous data voice transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201312389Y true CN201312389Y (en) | 2009-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201571344U Expired - Fee Related CN201312389Y (en) | 2008-12-16 | 2008-12-16 | Synchronous data voice transmission device |
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| CN (1) | CN201312389Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647211A (en) * | 2011-02-22 | 2012-08-22 | 中兴通讯股份有限公司 | Mobile terminal for realizing wireless clustering function by utilizing Zigbee technology |
-
2008
- 2008-12-16 CN CNU2008201571344U patent/CN201312389Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647211A (en) * | 2011-02-22 | 2012-08-22 | 中兴通讯股份有限公司 | Mobile terminal for realizing wireless clustering function by utilizing Zigbee technology |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090916 Termination date: 20111216 |