CN201536364U - Digital/analog compatible wireless communication station - Google Patents
Digital/analog compatible wireless communication station Download PDFInfo
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- CN201536364U CN201536364U CN2009201832349U CN200920183234U CN201536364U CN 201536364 U CN201536364 U CN 201536364U CN 2009201832349 U CN2009201832349 U CN 2009201832349U CN 200920183234 U CN200920183234 U CN 200920183234U CN 201536364 U CN201536364 U CN 201536364U
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Abstract
The utility model discloses a digital/analog compatible wireless communication station, which comprises a radio frequency unit, a master control unit, an analog/digital baseband unit, a network unit, a display/interface unit and a GPS unit, wherein the analog/digital baseband unit comprises a processor, an FPGA, a down-conversion processing module, a first A/D converter used for achieving analog-digital conversion, an upper-conversion processing module, a second A/D converter used for achieving digital-analog conversion, a FLASH memory and a SDRAM memory. The wireless communication station is based on the intermediate frequency digital technology and utilizes the processor and the FPGA software to achieve digital station and frequency modulation analog station functions. The wireless communication station can work in digital and analog modes, and the digital mode uses a TDMA digital station to wirelessly transmit multi-path voice and data at one or a pair of frequency points so as to achieve full duplex communication; and the analog mode is a frequency modulation mode, and the utility model is compatible with the existing frequency modulation station.
Description
Technical field
The utility model relates to the mobile communication technology field, particularly relates to a kind of Radio Station of digital-to-analog compatibility.
Background technology
In present commercial Application, more and more for the requirement of not only wireless communication but also wirelessly transmitting data.Under the less demanding situation, the simulation intercom that is based on of present domestic use designs and produces, and digital information adopts modem chip to finish transmission, and speed is low.And when wanting independent transmission voice and multichannel data, then need many analog radios, a plurality of frequency that the multiple wireless passage just can be provided, and the cost height, the acquisition frequency resource is many.Adopt the TDMA digital radio station effectively to overcome the above problems.
In addition, owing to existing using a large amount of analog radios, it is very expensive all to be replaced by digital radio station quickly, and some occasion concern is wider, otherwise interrupt using relatively difficulty of updating apparatus, adopt the compatible radio station of digital-to-analog that feasible upgrading scheme can be provided.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art, and a kind of Radio Station of digital-to-analog compatibility is provided, and is based on the if digitization technology, can work in numeral and analog form; Digital form is the TDMA digital radio station, and wireless transmission multi-path voice and data on one or a pair of frequency realize full-duplex communication; Analog form is a mode of frequency regulation, with existing FM radio station compatibility.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of Radio Station of digital-to-analog compatibility comprises:
One radio frequency unit, it is used for realizing the transmission and the reception of radiofrequency signal, finishes the signal transmission of wireless channel;
One main control unit, it is used for controlling the operating state in radio station, coordinates the work of each functional unit, realizes the handshaking between each functional unit;
One analog/digital Base Band Unit, it is used for realizing the radio station function of analog form or digital form; When digital form, carry out on modulating and demodulating signal, error correction coding/decoding, modulus or digital-to-analogue conversion, the numeral of voice encoding/decoding, CPM mode down-conversion and receive synchronous processing; When analog form, carry out the processing of down-conversion on modulating and demodulating signal, modulus or digital-to-analogue conversion, the numeral of voice encoding/decoding, mode of frequency regulation;
One network element, it is used for realizing the networking and the data relay transmission in radio station;
One demonstration/interface unit, it is used for realizing that the interface of outbound data and speech and operating state show;
One GPS unit, it is used for obtaining GPS information;
Radio frequency unit is connected with the analog/digital Base Band Unit; Radio frequency unit, analog/digital Base Band Unit, network element, demonstration/interface unit and GPS unit are connected with main control unit respectively;
Wherein,
This analog/digital Base Band Unit comprises processor, FPGA, down-converted module, first A/D converter that is used for realizing analog-to-digital conversion, upconversion process module, is used for realizing second A/D converter, FLASH memory and the SDRAM memory of number-Mo conversion; The input of down-converted module is connected to the intermediate frequency output of radio frequency unit; The output of down-converted module is connected to the input of first A/D converter; The output of first A/D converter is connected to the input of processor; The output of upconversion process module is connected to the emission radio frequency input of radio frequency unit; The input of upconversion process module is connected to the output of second A/D converter; The input of second A/D converter is connected with the output of processor; FPGA, FLASH memory and SDRAM memory are connected with processor respectively.
The Radio Station of a kind of digital-to-analog compatibility of the present utility model is to be designed to a kind of Radio Station based on the if digitization technology, can work in numeral and analog form.Digital form is the TDMA digital radio station, and wireless transmission multi-path voice and data on one or a pair of frequency realize " full duplex " communication.Analog form is a mode of frequency regulation, with existing FM radio station compatibility.
The analog/digital Base Band Unit is the core of this Radio Station, and the analog/digital Base Band Unit can be realized two partial functions, i.e. digital form radio station function and digital form radio station function.During digital form, the analog/digital Base Band Unit is mainly finished down-conversion in the encoding and decoding, modulating and demodulating signal (CPM), error correction coding/decoding, AD/DA, numeral of speech, is received functions such as synchronous; During analog form, the analog/digital Base Band Unit is mainly finished function such as down-conversion in the encoding and decoding, modulating and demodulating signal (frequency modulation), AD/DA, numeral of speech.
The analog/digital Base Band Unit mainly adopts processor+FPGA software to realize digital radio station function and frequency modulation analog radio function.When being operated in digital form, realize that by processor+FPGA software encoding and decoding, digital signal modulation (CPM), correcting data error encoding and decoding to speech receive functions such as synchronous; When being operated in analog form, encoding and decoding, analog signal modulation-demodulation functions such as (frequency modulation) by processor+FPGA software realization speech make compatible existing analog fm radio station, radio station.
The Radio Station of a kind of digital-to-analog compatibility of the present utility model, when working in digital form, this Radio Station adopts fixedly slotted mode of TDMA, number of timeslots can be set at 1～10 as required, and each time slot can both be initiated speech (comprising data) communication reliably.Time slot adopts GPS information as the time synchronized source.
The beneficial effects of the utility model are, because employing radio frequency unit, main control unit, analog/digital Base Band Unit, network element, demonstration/interface unit and GPS unit constitute the Radio Station of digital-to-analog compatibility, and the analog/digital Base Band Unit comprises processor, FPGA, down-converted module, first A/D converter that is used for realizing analog-to-digital conversion, upconversion process module, is used for realizing second A/D converter, FLASH memory and the SDRAM memory that number-Mo changes; This Radio Station is to utilize processor+FPGA software to realize digital radio station function and frequency modulation analog radio function; This Radio Station is compared with the radio station of prior art, has following beneficial effect:
The one,, can work in numeral and analog form, the compatible existing frequency modulation analog radio of analog form;
The 2nd,, digital form adopts the TDMA mode of operation, can " full duplex " communicate by letter, and independently radio channel of multichannel can be provided;
The 3rd,, have the GPS function, conveniently be used for the location.
Below in conjunction with drawings and Examples the utility model is described in further detail; But the Radio Station of a kind of digital-to-analog compatibility of the present utility model is not limited to embodiment.
Description of drawings
Fig. 1 is a The general frame of the present utility model;
Fig. 2 is the hardware block diagram of analog/digital Base Band Unit of the present utility model;
Fig. 3 is the schematic diagram that time slot of the present utility model is divided.
Embodiment
Embodiment, shown in accompanying drawing, the Radio Station of a kind of digital-to-analog compatibility of the present utility model comprises:
One radio frequency unit 1, it is used for realizing the transmission and the reception of radiofrequency signal, finishes the signal transmission of wireless channel;
One main control unit 2, it is used for controlling the operating state in radio station, coordinates the work of each functional unit, realizes the handshaking between each functional unit;
One analog/digital Base Band Unit 3, it is used for realizing the radio station function of analog form or digital form; When digital form, carry out on modulating and demodulating signal, error correction coding/decoding, modulus or digital-to-analogue conversion, the numeral of voice encoding/decoding, CPM mode down-conversion and receive synchronous processing; When analog form, carry out the processing of down-conversion on modulating and demodulating signal, modulus or digital-to-analogue conversion, the numeral of voice encoding/decoding, mode of frequency regulation;
One network element 4, it is used for realizing the networking and the data relay transmission in radio station;
One demonstration/interface unit 5, it is used for realizing that the interface of outbound data and speech and operating state show;
One GPS unit 6, it is used for obtaining GPS information;
Radio frequency unit 1 is connected with analog/digital Base Band Unit 3; Radio frequency unit 1, analog/digital Base Band Unit 3, network element 4, demonstration/interface unit 5 and GPS unit 6 are connected with main control unit 2 respectively;
Wherein,
This analog/digital Base Band Unit 3 comprises processor 31, FPGA32, down-converted module 33, is used for realizing first A/D converter 34 of analog-to-digital conversion, upconversion process module 35, be used for realizing second A/D converter 36, FLASH memory 37 and the SDRAM memory 38 of number-Mo conversion; The input of down-converted module 33 is connected to the intermediate frequency output of radio frequency unit 1; The output of down-converted module 33 is connected to the input of first A/D converter 34; The output of first A/D converter 34 is connected to the input of processor 31; The output of upconversion process module 35 is connected to the emission radio frequency input of radio frequency unit 1; The input of upconversion process module 35 is connected to the output of second A/D converter 36; The input of second A/D converter 36 is connected with the output of processor 31; FPGA32, FLASH memory 37 and SDRAM memory 38 are connected with processor 31 respectively.
The Radio Station of a kind of digital-to-analog compatibility of the present utility model is to be designed to a kind of Radio Station based on the if digitization technology, can work in numeral and analog form.Digital form is the TDMA digital radio station, and wireless transmission multi-path voice and data on one or a pair of frequency realize " full duplex " communication.Analog form is a mode of frequency regulation, with existing FM radio station compatibility.
Analog/digital Base Band Unit 3 is cores of this Radio Station, and analog/digital Base Band Unit 3 can be realized two partial functions, i.e. digital form radio station function and digital form radio station function.During digital form, analog/digital Base Band Unit 3 is mainly finished down-conversion in the encoding and decoding, modulating and demodulating signal (CPM), error correction coding/decoding, AD/DA, numeral of speech, is received functions such as synchronous; During analog form, analog/digital Base Band Unit 3 is mainly finished function such as down-conversion in the encoding and decoding, modulating and demodulating signal (frequency modulation), AD/DA, numeral of speech.
The analog/digital Base Band Unit 3 main processor+FPGA softwares that adopt are realized digital radio station function and frequency modulation analog radio function.When being operated in digital form, realize that by processor+FPGA software encoding and decoding, digital signal modulation (CPM), correcting data error encoding and decoding to speech receive functions such as synchronous; When being operated in analog form, encoding and decoding, analog signal modulation-demodulation functions such as (frequency modulation) by processor+FPGA software realization speech make compatible existing analog fm radio station, radio station.
The Radio Station of a kind of digital-to-analog compatibility of the present utility model, when working in digital form, this Radio Station adopts fixedly slotted mode of TDMA, number of timeslots can be set at 1～10 as required, and each time slot can both be initiated speech (comprising data) communication reliably.Time slot adopts GPS information as the time synchronized source.
10 time slots of TDMA pattern can both be initiated communication, also can receive, this just provides 10 independently radio channels, being equivalent to 10 simulation semi duplex radio stations works simultaneously, this can save a large amount of frequency resources in the occasion that needs multichannel communication, save great amount of cost, and equipment volume is dwindled greatly.
The foregoing description only is used for further specifying the Radio Station of a kind of digital-to-analog compatibility of the present utility model; but the utility model is not limited to embodiment; every foundation technical spirit of the present utility model all falls in the protection range of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. the Radio Station of a digital-to-analog compatibility is characterized in that: comprising:
One radio frequency unit, it is used for realizing the transmission and the reception of radiofrequency signal, finishes the signal transmission of wireless channel;
One main control unit, it is used for controlling the operating state in radio station, coordinates the work of each functional unit, realizes the handshaking between each functional unit;
One analog/digital Base Band Unit, it is used for realizing the radio station function of analog form or digital form; When digital form, carry out on modulating and demodulating signal, error correction coding/decoding, modulus or digital-to-analogue conversion, the numeral of voice encoding/decoding, CPM mode down-conversion and receive synchronous processing; When analog form, carry out the processing of down-conversion on modulating and demodulating signal, modulus or digital-to-analogue conversion, the numeral of voice encoding/decoding, mode of frequency regulation;
One network element, it is used for realizing the networking and the data relay transmission in radio station;
One demonstration/interface unit, it is used for realizing that the interface of outbound data and speech and operating state show;
One GPS unit, it is used for obtaining GPS information;
Radio frequency unit is connected with the analog/digital Base Band Unit; Radio frequency unit, analog/digital Base Band Unit, network element, demonstration/interface unit and GPS unit are connected with main control unit respectively;
Wherein,
This analog/digital Base Band Unit comprises processor, FPGA, down-converted module, first A/D converter that is used for realizing analog-to-digital conversion, upconversion process module, is used for realizing second A/D converter, FLASH memory and the SDRAM memory of number-Mo conversion; The input of down-converted module is connected to the intermediate frequency output of radio frequency unit; The output of down-converted module is connected to the input of first A/D converter; The output of first A/D converter is connected to the input of processor; The output of upconversion process module is connected to the emission radio frequency input of radio frequency unit; The input of upconversion process module is connected to the output of second A/D converter; The input of second A/D converter is connected with the output of processor; FPGA, FLASH memory and SDRAM memory are connected with processor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201832349U CN201536364U (en) | 2009-09-23 | 2009-09-23 | Digital/analog compatible wireless communication station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201832349U CN201536364U (en) | 2009-09-23 | 2009-09-23 | Digital/analog compatible wireless communication station |
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| CN201536364U true CN201536364U (en) | 2010-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201832349U Expired - Fee Related CN201536364U (en) | 2009-09-23 | 2009-09-23 | Digital/analog compatible wireless communication station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595255A (en) * | 2011-12-20 | 2012-07-18 | 天津七一二通信广播有限公司 | Shortwave-channel digital interphone |
| CN106526374A (en) * | 2016-10-28 | 2017-03-22 | 北京电子工程总体研究所（航天科工防御技术研究开发中心） | Universal configurable radio frequency simulation device |
-
2009
- 2009-09-23 CN CN2009201832349U patent/CN201536364U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595255A (en) * | 2011-12-20 | 2012-07-18 | 天津七一二通信广播有限公司 | Shortwave-channel digital interphone |
| CN106526374A (en) * | 2016-10-28 | 2017-03-22 | 北京电子工程总体研究所（航天科工防御技术研究开发中心） | Universal configurable radio frequency simulation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20170923 |