CN201536424U - Wireless digital induction broadcasting station - Google Patents
Wireless digital induction broadcasting station Download PDFInfo
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- CN201536424U CN201536424U CN2009201832368U CN200920183236U CN201536424U CN 201536424 U CN201536424 U CN 201536424U CN 2009201832368 U CN2009201832368 U CN 2009201832368U CN 200920183236 U CN200920183236 U CN 200920183236U CN 201536424 U CN201536424 U CN 201536424U
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Abstract
The utility model discloses a wireless digital induction broadcasting station which comprises an induction antenna, a radio frequency unit, a baseband processing unit, a man-machine interface unit and a power supply unit. The wireless digital induction broadcasting station adopts digital signal time division transmission mode to realize that the time in a channel with a bandwidth of 25kHz is divided into three TS (time slots), and utilizes GPS technology to synchronize digital wireless signals for the realization of an air wireless transmission rate of 64Kbps, thereby achieving the function of high-speed synchronous data and voice transmission, as well as automatic matching adjustment of self-adaptive antenna impedance. When the TSs are idle, all the three continuous TSs can emit or receive; and in the full-duplex working mode, the three TSs can share the same channel at the same time and receive data transmission while performing voice communication in a wireless manner; and in each TS channel, the channel can be shared through CSMA competition, thereby improving the work efficiency and frequency spectrum utilization ratio, and realizing the function of high-speed synchronous transmission of data and two-way voice.
Description
Technical field
The utility model relates to communication technical field, particularly relate to a kind of wireless digital induction radio station, the function that it has double-directional speech and data and image transmission is applicable to that mine emergency communication system, railway reach uses such as the telecommunication for construction system of Electrified Tunnel, locomotive double heading communication system, wireless train dispatch communication system along the line.
Background technology
The radio station extensive use in the railway wireless dispatching communication system of traditional analog frequency modulation induction at present, utilize the electric power contact line to carry out the inductive coupling transport communication at electrified section, in non-electrified section, can adopt the vertical rod lashing wire to belong to the lead mode and carry out the inductive coupling transport communication as waveguide wire, replace the huge leakage cable of investment and add between repeater or radio zone traditional communication modes such as platform, guarantee that interval interior coverage of communication reaches 100%, solves the interval Speech Communication problems of signal feeble field such as tunnel, railway mountain area.Because analog fm induction radio station exists the frequency resource utilance low, speech quality is poor, and poor anti jamming capability can not satisfy the requirement that speech and high-speed data transmit simultaneously.For example, require to have double-directional speech and high-speed data transfer function and image transmission function simultaneously exactly in the locomotive double heading communication system of railway and mine emergency management and rescue communication system etc.Such requirement can't be satisfied in existing analog fm induction radio station.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art, a kind of wireless digital induction radio station is provided, be divided into 3 time slots in the time of can being implemented in the channel of a 25KHz bandwidth, and utilize GPS technology synchronous digital wireless signal, realize that the on-air radio transmission rate reaches 64Kbps, thereby satisfied high-speed data and speech transfer function simultaneously, and adjustment is mated in the adaptive antenna impedance automatically.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of wireless digital induction radio station comprises:
One induction antenna is used for realizing the wireless coupling with the line of induction;
One radio frequency unit, the amplification that is used for realizing transmitting, power drive, reception frequency-selective filtering, low noise amplify and bandpass filtering; This radio frequency unit is connected with induction antenna, by induction antenna and the line of induction or contact line wireless coupling transmission signals;
One baseband processing unit is used for realizing modulating/demodulating, error correction coding/decoding, the high-speed AD/DA of signal and receives synchronous; This baseband processing unit is connected with radio frequency unit;
One man-machine interface unit is used for realizing that voice encoding/decoding, loudspeaker driving, outbound data interface, keystroke interface, display screen drive, indicator light drives, interface protocol is handled, control protocol is handled, GPS controls and frequency source control; This man-machine interface unit is connected with baseband processing unit;
One power subsystem is used for providing power supply signal to radio frequency unit, baseband processing unit and man-machine interface unit; This power subsystem is connected with radio frequency unit, baseband processing unit and man-machine interface unit respectively;
Wherein:
This baseband processing unit comprises baseband processor, FPGA, is used for realizing first A/D converter of analog-to-digital conversion, is used for realizing second D/A converter, a FLASH memory and the SDRAM memory that number-Mo changes; The output of first A/D converter is connected with the input of baseband processor; The input of second D/A converter is connected with the output of baseband processor; FPGA, a FLASH memory and a SDRAM memory are connected with baseband processor respectively;
Be provided with the modulating and demodulating signal module that adopts the CPM technology to carry out modulation in this baseband processor and adopt the RS sign indicating number to carry out the error correction coding/decoding module of error correction coding/decoding;
Also be provided with the tdma slot mode treatment module that is divided into 3 time slots when being used in the channel of a 25KHz bandwidth in this baseband processor.
By the circuit that baseband processing unit and radio frequency unit make up, handle the tdma slot pattern, be to be divided into 3 time slots in the channel of a 25KHz bandwidth time; Under the time slot idle condition, 3 continuous slots can be launched or received signal; In time-division during full-duplex mode, these 3 time slots can be shared same channel simultaneously; Carry out speech can the wireless receiving data transport service when linking up, in each time slot channel, by CSMA competition shared channel.
By the circuit that baseband processing unit and radio frequency unit make up, can not hold detection by power, the direction of induction antenna is carried out the self adaptation impedance matching with gain by baseband processor adjust automatically.
Described man-machine interface unit comprises:
One voice encoding/decoding processor, be used for will input analog voice signal carry out compressed voice coding calculation process and be converted to audio digital signals output, and the audio digital signals of input is carried out voice decompression operation treatment conversion is analog voice signal output;
One primary processor is used for the signal of input is analyzed, calculated and handles the control signal that output is corresponding;
One drive circuit of loudspeaker is used for driving loudspeaker and sends corresponding sound;
At least one outbound data interface is used for realizing and being connected of external equipment, with realize and external equipment between exchanges data;
One keystroke interface is used for realizing and being connected of button;
One display drive circuit is used for driving display screen work;
One drive circuit of indicator is used for driving indicator light work;
One GPS module is used for receiving gps data;
One the 2nd FLASH memory;
One the 2nd SDRAM memory;
One network element;
The output of keystroke interface is connected with primary processor; The input of display drive circuit, drive circuit of indicator, drive circuit of loudspeaker is connected with the output of primary processor respectively; Primary processor is connected with network element with voice encoding/decoding processor, outbound data interface, GPS module, the 2nd FLASH memory, the 2nd SDRAM memory respectively;
Be respectively equipped with interface protocol processing module, control protocol processing module and frequency source control treatment module in this primary processor.
Described outbound data interface comprises USB interface, RS232 interface, I2C interface and SPI interface.
Described network element is built-in with the network address and ID address, by described primary processor control, can realize individual calling, group calling or generally call the transmission of support data MANET.
Described radio frequency unit comprises power drive amplifying circuit, radiofrequency signal power amplifier, antennal interface, frequency-selecting filter, low noise amplifier and band pass filter; The input of power drive amplifying circuit is connected with the output of baseband processing unit; The output of power drive amplifying circuit is connected with the input of radiofrequency signal power amplifier; The output of radiofrequency signal power amplifier is connected to antennal interface; Antennal interface is connected with induction antenna; The input of frequency-selecting filter is connected to antennal interface; The output of frequency-selecting filter is connected with the input of low noise amplifier; The output of low noise amplifier is connected with the input of band pass filter; The output of band pass filter is connected with the input of baseband processing unit.
Wireless digital induction of the present utility model radio station, the circuit that adopts baseband processing unit and radio frequency unit to make up, handle the tdma slot pattern, be divided into 3 time slots (under the constant situation of time slot, can be configured to transporting speech and data) when being implemented in the channel of a 25KHz bandwidth.Under the time slot idle condition, 3 continuous slots can be launched or receive.In time-division during full-duplex mode, these 3 time slots can be shared same channel simultaneously.Carrying out leading to enough wireless receiving data transport service when speech is linked up, in each time slot channel,,, satisfying high-speed data and bi-directional speech transfer function simultaneously to increase work efficiency and the availability of frequency spectrum by CSMA (carrier sense) competition shared channel.
Wireless digital induction of the present utility model radio station, baseband processing unit uses CPM technology modulation and RS sign indicating number error correction coding/decoding, the on-air radio transmission rate reaches 64Kbps, realize multiple business types such as data, speech, short message, format declaration form, guarantee reliability of data transmission, improve antijamming capability.And compare with simulated voice induction station telecommunication, obviously do not reduce communication distance.
Wireless digital of the present utility model induction radio station, the man-machine interface network element is built-in with the network address and ID address, by primary processor control, can realize individual calling, group calling or generally calls.A plurality of radio station can form no center MANET, adopt packet switching storage retransmission technique on the wireless channel, support the transmission of data MANET, maximum relaying 3 times.
Wireless digital induction of the present utility model radio station platform, the primary processor of man-machine interface unit uses advanced speech coding technology, by voice signal being decomposed into a plurality of most important parts, and utilize a spot of bit, thereby realize compressed voice signal it coding.Because this technology mainly is that the mankind's voice signal is handled, thereby greatly reduces background noise, provide Speech Communication more clearly than analogue inductive radio station, and have encipher interface, support cryptographic capabilities to speech and data.
Wireless digital induction of the present utility model radio station, built-in integrated GPS module in man-machine interface unit and internal clocking, it is synchronous that GPS information is used for communication data.Do not receive under the GPS information state in places such as coverage are arranged, adopt internal clocking, can keep proper communication.
Wireless digital induction of the present utility model radio station, this wireless digital induction radio station has maintenance interface, can write maintenance and tests such as frequency, function setting, software upgrading to this wireless digital induction radio station by maintenance software.
The beneficial effects of the utility model are, owing to adopt induction antenna, radio frequency unit, baseband processing unit, the man-machine interface unit, power subsystem constitutes wireless digital induction radio station, it adopts digital signal time-division transmission means, be divided into 3 time slots when being implemented in the channel of a 25KHz bandwidth, under the time slot idle condition, 3 continuous slots can be launched or receive, in time-division during full-duplex mode, these 3 time slots can be shared same channel simultaneously, carrying out leading to enough wireless receiving data transport service when speech is linked up, in each time slot channel, by CSMA competition shared channel, can increase work efficiency and the availability of frequency spectrum, satisfy high-speed data and bi-directional speech transfer function simultaneously; Owing to adopted modulation of CPM technology and RS sign indicating number error correction coding/decoding, can guarantee reliability of data transmission, improve antijamming capability; Owing to be built-in with the network address and ID address, can realize individual calling, group calling or generally call that a plurality of radio station can form no center MANET, adopt packet switching storage retransmission technique on the wireless channel, can support the transmission of data MANET, maximum relaying 3 times; Owing to adopted speech coding technology, thereby greatly reduced background noise, provide the communication of speech more clearly than analogue inductive radio station, and have encipher interface, support cryptographic capabilities to speech and data; Owing to adopted built-in integrated GPS module and internal clocking, it is synchronous that GPS information can be used for communication data, do not receive under the GPS information state in places such as coverage are arranged, adopts internal clocking, can keep proper communication.
Below in conjunction with drawings and Examples the utility model is described in further detail; But wireless digital induction of the present utility model radio station is not limited to embodiment.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model;
Fig. 2 is the hardware block diagram of man-machine interface of the present utility model unit;
Fig. 3 is the hardware block diagram of baseband processing unit of the present utility model;
Fig. 4 is the schematic diagram of slotted mode of the present utility model;
Fig. 5 is a user mode schematic diagram of the present utility model.
Embodiment
Embodiment, shown in accompanying drawing, wireless digital induction of the present utility model radio station, be used for construction protection communication system, railway emergency communication system, the heavy UNICOM of the railway locomotive heavy duty communication system of electric railway etc., can realize one to one, one-to-many, a pair of whole voice calls, text message, the tracking of GPS position, image data transmission etc.As shown in Figure 5, comprise a plurality of wireless digital inductions radio station, antenna feeder in the using system, reach the contact line or the line of induction etc., be coupled to radiofrequency signal on the contact line or the line of induction by antenna wireless in wireless digital induction radio station, transmit by the contact line or the line of induction again, and be radiated another wireless digital induction radio station reception.Because the transmission of long-wave signal in sensor conductor induces effect will be better than the radiation delivery of 450MHz signal in space and tunnel far away.Need not invest interval trunking in the application system of this wireless digital induction radio station, can realize that the field intensity coverage rate reaches 100%.And under the frequency resource condition of limited, wireless digital induction radio station is divided into 3 time slots on the channel of a 25KHz bandwidth, a two-way speech and a circuit-switched data, air transfer rate is up to 64Kbps, transmission when realizing duplexing voice conversation and multiple business data.
The digital signalling function can also be realized in this wireless digital induction radio station, and its digital signalling function comprises, the distant radio station of getting killed, remote monitoring, inspection radio station, call prompt and urgent call etc.
This wireless digital induction radio station comprises:
One induction antenna 5 is used for realizing the wireless coupling with the line of induction;
One radio frequency unit 3, the amplification that is used for realizing transmitting, power drive, reception frequency-selective filtering, low noise amplify and bandpass filtering; This radio frequency unit 3 is connected with induction antenna 5, by induction antenna 5 and the line of induction or contact line wireless coupling transmission signals;
One baseband processing unit 2 is used for realizing modulating/demodulating, error correction coding/decoding, the high-speed AD/DA of signal and receives synchronous; This baseband processing unit 2 is connected with radio frequency unit 3;
One man-machine interface unit 1 is used for realizing that voice encoding/decoding, loudspeaker driving, outbound data interface, keystroke interface, display screen drive, indicator light drives, interface protocol is handled, control protocol is handled, GPS controls and frequency source control; This man-machine interface unit 1 is connected with baseband processing unit 2;
One power subsystem 4 is used for providing power supply signal to radio frequency unit 3, baseband processing unit 2 and man-machine interface unit 1; This power subsystem 4 is connected with radio frequency unit 3, baseband processing unit 2 and man-machine interface unit 1 respectively;
Wherein:
By the circuit that baseband processing unit 2 and radio frequency unit 3 makes up, handle the tdma slot pattern, be to be divided into 3 time slots in the channel of a 25KHz bandwidth time; Under the time slot idle condition, 3 continuous slots can be launched or received signal; In time-division during full-duplex mode, these 3 time slots can be shared same channel simultaneously; Carry out speech can the wireless receiving data transport service when linking up, in each time slot channel, by CSMA competition shared channel.
Described baseband processing unit 2 comprises baseband processor 21, FPGA22, is used for realizing first A/D converter 23 of analog-to-digital conversion, is used for realizing second D/A converter 24, a FLASH memory 25 and the SDRAM memory 26 that number-Mo changes; The output of first A/D converter 23 is connected with the input of baseband processor 21; The input of second D/A converter 24 is connected with the output of baseband processor 21; FPGA22, a FLASH memory 25 and a SDRAM memory 26 are connected with baseband processor 21 respectively; Be provided with the modulating and demodulating signal module that adopts the CPM technology to carry out modulation in this baseband processor 21 and adopt the RS sign indicating number to carry out the error correction coding/decoding module of error correction coding/decoding.
By the circuit that baseband processing unit 2 and radio frequency unit 3 make up, can not hold detection by power, the direction of induction antenna is carried out the self adaptation impedance matching with gain by baseband processor adjust automatically.
Described man-machine interface unit 1 comprises:
One voice encoding/decoding processor 11, be used for will input analog voice signal carry out compressed voice coding calculation process and be converted to audio digital signals output, and the audio digital signals of input is carried out voice decompression operation treatment conversion is analog voice signal output;
One primary processor 12 is used for the signal of input is analyzed, calculated and handles the control signal that output is corresponding;
One drive circuit of loudspeaker is used for driving loudspeaker and sends corresponding sound;
At least one outbound data interface 13 is used for realizing and being connected of external equipment, with realize and external equipment between exchanges data;
One keystroke interface 14 is used for realizing and being connected of button;
One display drive circuit (being that LCD drives) 151 is used for driving display screen work;
One drive circuit of indicator (being that LED drives) 152 is used for driving indicator light work;
One GPS module 16 is used for receiving gps data;
One the 2nd FLASH memory 171;
One the 2nd SDRAM memory 172;
One network element 18;
The output of keystroke interface 14 is connected with primary processor 12; The input of display drive circuit 151, drive circuit of indicator 152, drive circuit of loudspeaker is connected with the output of primary processor 12 respectively; Primary processor 12 is connected with network element 18 with voice encoding/decoding processor 11, outbound data interface 13, GPS module 16, the 2nd FLASH memory 171, the 2nd SDRAM memory 172 respectively;
Be respectively equipped with interface protocol processing module, control protocol processing module and frequency source control treatment module in this primary processor 12.
Described outbound data interface 13 comprises USB interface, RS232 interface, I2C interface and SPI interface.
Described network element 18 is built-in with the network address and ID address, by described primary processor 12 controls, can realize individual calling, group calling or generally call the transmission of support data MANET.
Described radio frequency unit 3 comprises power drive amplifying circuit 31, radiofrequency signal power amplifier 32, antennal interface 33, frequency-selecting filter 34, low noise amplifier 35 and band pass filter 36; The input of power drive amplifying circuit 31 is connected with the output of baseband processing unit 2; The output of power drive amplifying circuit 32 is connected with the input of radiofrequency signal power amplifier 31; The output of radiofrequency signal power amplifier 32 is connected to antennal interface 33; Antennal interface 33 is connected with induction antenna 5; The input of frequency-selecting filter 34 is connected to antennal interface 33; The output of frequency-selecting filter 34 is connected with the input of low noise amplifier 35; The output of low noise amplifier 35 is connected with the input of band pass filter 36; The output of band pass filter 36 is connected with the input of baseband processing unit 2.
Wireless digital induction of the present utility model radio station, the circuit that adopts baseband processing unit 2 and radio frequency unit 3 to make up, handle the tdma slot pattern, be divided into 3 time slots (under the constant situation of time slot, can be configured to transporting speech and data) when being implemented in the channel of a 25KHz bandwidth.Under the time slot idle condition, 3 continuous slots can be launched or receive.In time-division during full-duplex mode, these 3 time slots can be shared same channel simultaneously.Carrying out leading to enough wireless receiving data transport service when speech is linked up, in each time slot channel,,, satisfying high-speed data and bi-directional speech transfer function simultaneously to increase work efficiency and the availability of frequency spectrum by CSMA (carrier sense) competition shared channel.
Wireless digital induction of the present utility model radio station, baseband processing unit 2 uses CPM technology modulation and RS sign indicating number error correction coding/decoding, the on-air radio transmission rate reaches 64Kbps, realize multiple business types such as data, speech, short message, format declaration form, guarantee reliability of data transmission, improve antijamming capability.And compare with simulated voice induction station telecommunication, obviously do not reduce communication distance.
Wireless digital of the present utility model induction radio station, the network element 18 of man-machine interface is built-in with the network address and ID address, by primary processor 12 controls, can realize individual calling, group calling or generally calls.A plurality of radio station can form no center MANET, adopt packet switching storage retransmission technique on the wireless channel, support the transmission of data MANET, maximum relaying 3 times.
Wireless digital induction of the present utility model radio station, the primary processor 12 of man-machine interface unit 1 uses advanced speech coding technology, by voice signal being decomposed into a plurality of most important parts, and utilize a spot of bit, thereby realize compressed voice signal it coding.Because this technology mainly is that the mankind's voice signal is handled, thereby greatly reduces background noise, provide Speech Communication more clearly than analogue inductive radio station, and have encipher interface, support cryptographic capabilities to speech and data.
Wireless digital induction of the present utility model radio station, man-machine interface unit 1 built-in integrated GPS module 16 and internal clocking, it is synchronous that GPS information is used for communication data.Do not receive under the GPS information state in places such as coverage are arranged, adopt internal clocking, can keep proper communication.
Wireless digital induction of the present utility model radio station, this wireless digital induction radio station has maintenance interface, can write maintenance and tests such as frequency, function setting, software upgrading to this wireless digital induction radio station by maintenance software.
Wireless digital induction of the present utility model radio station, user's original analog voice signal or the Mike's signal vocoder by voice encoding/decoding processor 11 carries out the computing of compressed voice coding and is converted to audio digital signals, deliver to primary processor 12, simultaneously the data message that also RS232 serial data interface user or computer is sent in voice signal is multiplexed to unified data flow.The convolution that baseband processor 21 is carried out error correction coding, chnnel coding to this data flow with interweave, synchronously, encryption and digital modulation.Synchronous by GPS, 3 time slots of TDMA, by sending signal on the time slot, digital signal after error correction, modulation treatment is that second D/A converter 24 converts frequency signal to be launched to by high-speed d/a, through power drive amplifying circuit 31, isolator, radiofrequency signal power amplifier 32, launch by antenna 5.Simultaneously the direction of induction antenna 5 and gain are not held detection by power, carry out to the induced emission antenna self-adaptive impedance matching by baseband processor 21 and adjust automatically.
Under the time slot idle condition, 3 continuous slots can be launched or receive, and the time-division is during full-duplex mode, these 3 time slots can be shared same channel simultaneously, carrying out leading to enough wireless receiving data transport service when speech is linked up, in each time slot channel, by CSMA (carrier sense) competition shared channel.
Wireless induction radio frequency (RF) signal that receives when the radio station at first amplifies through front end reception, frequency-selective filtering and low noise, is that the band pass filter 36 at center is delivered to the high-speed d/a transducer with the carrier wave by one again.Characteristics such as the frequency of band pass filter 36, phase place and amplitude are set and are adjusted by baseband processor 21, with the requirement of adaptive channel variation.Analog signal behind the bandpass filtering is to enter baseband processor 21 after first A/D converter 23 is converted to digital signal through the A/D converter in broadband.21 pairs of digital signals that enter of baseband processor are at first carried out digital demodulation, form digital baseband signal; And then this restituted signal carried out error correction decoding, obtain user data.If this information is user data information, then can send to computer or user by the RS232 data-interface, if through the voice signal of overcompression, then the vocoder by voice encoding/decoding processor 11 carries out the voice decompression operation, gives user or loudspeaker with the voice signal that restores by speech interface.
The foregoing description only is used for further specifying wireless digital induction of the present utility model radio station; 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 (5)
1. a wireless digital is responded to the radio station, it is characterized in that: comprising:
One induction antenna is used for realizing the wireless coupling with the line of induction;
One radio frequency unit, the amplification that is used for realizing transmitting, power drive, reception frequency-selective filtering, low noise amplify and bandpass filtering; This radio frequency unit is connected with induction antenna, by induction antenna and the line of induction or contact line wireless coupling transmission signals;
One baseband processing unit is used for realizing modulating/demodulating, error correction coding/decoding, the high-speed AD/DA of signal and receives synchronous; This baseband processing unit is connected with radio frequency unit;
One man-machine interface unit is used for realizing that voice encoding/decoding, loudspeaker driving, outbound data interface, keystroke interface, display screen drive, indicator light drives, interface protocol is handled, control protocol is handled, GPS controls and frequency source control; This man-machine interface unit is connected with baseband processing unit;
One power subsystem is used for providing power supply signal to radio frequency unit, baseband processing unit and man-machine interface unit; This power subsystem is connected with radio frequency unit, baseband processing unit and man-machine interface unit respectively;
Wherein:
This baseband processing unit comprises baseband processor, FPGA, is used for realizing first A/D converter of analog-to-digital conversion, is used for realizing second D/A converter, a FLASH memory and the SDRAM memory that number-Mo changes; The output of first A/D converter is connected with the input of baseband processor; The input of second D/A converter is connected with the output of baseband processor; FPGA, a FLASH memory and a SDRAM memory are connected with baseband processor respectively;
Be provided with the modulating and demodulating signal module that adopts the CPM technology to carry out modulation in this baseband processor and adopt the RS sign indicating number to carry out the error correction coding/decoding module of error correction coding/decoding;
Also be provided with the tdma slot mode treatment module that is divided into 3 time slots when being used in the channel of a 25KHz bandwidth in this baseband processor.
2. wireless digital induction according to claim 1 radio station, it is characterized in that: described man-machine interface unit comprises:
One voice encoding/decoding processor, be used for will input analog voice signal carry out compressed voice coding calculation process and be converted to audio digital signals output, and the audio digital signals of input is carried out voice decompression operation treatment conversion is analog voice signal output;
One primary processor is used for the signal of input is analyzed, calculated and handles the control signal that output is corresponding;
One drive circuit of loudspeaker is used for driving loudspeaker and sends corresponding sound;
At least one outbound data interface is used for realizing and being connected of external equipment, with realize and external equipment between exchanges data;
One keystroke interface is used for realizing and being connected of button;
One display drive circuit is used for driving display screen work;
One drive circuit of indicator is used for driving indicator light work;
One GPS module is used for receiving gps data;
One the 2nd FLASH memory;
One the 2nd SDRAM memory;
One network element;
The output of keystroke interface is connected with primary processor; The input of display drive circuit, drive circuit of indicator, drive circuit of loudspeaker is connected with the output of primary processor respectively; Primary processor is connected with network element with voice encoding/decoding processor, outbound data interface, GPS module, the 2nd FLASH memory, the 2nd SDRAM memory respectively;
Be respectively equipped with interface protocol processing module, control protocol processing module and frequency source control treatment module in this primary processor.
3. wireless digital induction according to claim 2 radio station, it is characterized in that: described outbound data interface comprises USB interface, RS232 interface, I2C interface and SPI interface.
4. wireless digital induction according to claim 2 radio station is characterized in that: described network element is built-in can to realize individual calling, group calling or the network address of generally calling and ID address by described primary processor control.
5. wireless digital induction according to claim 1 radio station, it is characterized in that: described radio frequency unit comprises power drive amplifying circuit, radiofrequency signal power amplifier, antennal interface, frequency-selecting filter, low noise amplifier and band pass filter; The input of power drive amplifying circuit is connected with the output of baseband processing unit; The output of power drive amplifying circuit is connected with the input of radiofrequency signal power amplifier; The output of radiofrequency signal power amplifier is connected to antennal interface; Antennal interface is connected with induction antenna; The input of frequency-selecting filter is connected to antennal interface; The output of frequency-selecting filter is connected with the input of low noise amplifier; The output of low noise amplifier is connected with the input of band pass filter; The output of band pass filter is connected with the input of baseband processing unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009201832368U CN201536424U (en) | 2009-09-23 | 2009-09-23 | Wireless digital induction broadcasting station |
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| CN2009201832368U CN201536424U (en) | 2009-09-23 | 2009-09-23 | Wireless digital induction broadcasting station |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354469A (en) * | 2012-12-28 | 2013-10-16 | 中国神华能源股份有限公司 | System and method for train tail communication of 10,000-ton combined train |
| CN107635292A (en) * | 2017-10-31 | 2018-01-26 | 中云沃达（山东）物联网科技有限公司 | Radio station and MANET wireless communication system |
| CN110602638A (en) * | 2019-10-21 | 2019-12-20 | 中国人民解放军国防科技大学 | Unmanned aerial vehicle-mounted low-altitude emergency communication ad hoc network radio station device and networking method |
| CN114567346A (en) * | 2022-04-28 | 2022-05-31 | 成都凯天电子股份有限公司 | FM radio station integrated with voice recognition and signal receiving and transmitting method thereof |
-
2009
- 2009-09-23 CN CN2009201832368U patent/CN201536424U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354469A (en) * | 2012-12-28 | 2013-10-16 | 中国神华能源股份有限公司 | System and method for train tail communication of 10,000-ton combined train |
| CN103354469B (en) * | 2012-12-28 | 2016-03-16 | 中国神华能源股份有限公司 | The row tail phone system of ten thousand tons of unit car and method |
| CN107635292A (en) * | 2017-10-31 | 2018-01-26 | 中云沃达（山东）物联网科技有限公司 | Radio station and MANET wireless communication system |
| CN107635292B (en) * | 2017-10-31 | 2024-05-28 | 中云沃达（山东）物联网科技有限公司 | Radio station and ad hoc network wireless communication system |
| CN110602638A (en) * | 2019-10-21 | 2019-12-20 | 中国人民解放军国防科技大学 | Unmanned aerial vehicle-mounted low-altitude emergency communication ad hoc network radio station device and networking method |
| CN110602638B (en) * | 2019-10-21 | 2024-03-29 | 中国人民解放军国防科技大学 | Unmanned aerial vehicle-mounted low-altitude emergency communication ad hoc network radio station device and networking method |
| CN114567346A (en) * | 2022-04-28 | 2022-05-31 | 成都凯天电子股份有限公司 | FM radio station integrated with voice recognition and signal receiving and transmitting method thereof |
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