There is the intelligent transmitter receiver of bluetooth automatic adaptation frequencyTechnical field
The invention belongs to a kind of communication apparatus, particularly a kind of intelligent transmitter receiver with Bluetooth function.
Background technology
Conventional wireless electricity transmitter receiver basic functional principle is divided into three parts. One, emitting portion, voice converts, by modulating signal and modulation circuit, the radio-frequency carrier signal that audio signal produces through phaselocked loop and voltage controlled oscillator (VCO) to launch to, through Hyblid Buffer Amplifier, excitation is amplified, power amplifier, produce specified radio-frequency power, through antenna low pass filter, it is suppressed that harmonic wave, then pass through antenna and launch; Two, receiving part, the signal that amplifies from radio frequency is mixed and generates the first intermediate-freuqncy signal with the first local oscillation signal from phase-locked loop frequency synthesizer circuit at the first frequency mixer place by reception part. First intermediate-freuqncy signal eliminates the noise signal of neighboring trace further by crystal filter. Filtered first intermediate-freuqncy signal enters IF process chip, is again mixed generation the second intermediate-freuqncy signal with the second local oscillation signal, after the second intermediate-freuqncy signal filters useless spurious signal by a ceramic filter, is exaggerated and frequency discrimination, produces audio signal. Audio signal by amplifications, band filter, the circuit such as postemphasis, enter volume control circuit and power amplifier amplify, driving speaker, just can obtain the sound launched; Three, signaling processes, and transmitter receiver micro-control unit (MCU) produces CTCSS/CDCSS signal and adjusts through amplifying, and enters voltage controlled oscillator and is modulated. The low frequency signal obtained after receiving frequency discrimination, a part is filtered shaping through amplifying with infrasonic band filter, enters micro-control unit (MCU), compares with preset value, by the output of its output control audio frequency power amplifier and speaker. If namely identical with preset frequency and infrasonic value, then open speaker, if it is different, then mute speaker. Above-mentioned three parts are the ultimate principles of tradition transmitter receiver, one to one or the premise that can set up of cluster conversation is that the transmitter receiver participating in call needs to arrange on the same frequency, and it is identical with launching subsonics parameter to receive subsonics, what this just brought loaded down with trivial details arranges operation element, easily producing mistake and waste time, transmitter receiver of the present invention is exactly can frequency and reception subsonics are completed with the parameter automatic adaptation launching subsonics by smart bluetooth system.
Summary of the invention
The invention aims to solve the problems referred to above, a kind of intelligent transmitter receiver with bluetooth automatic adaptation frequency is proposed, it is strong that this intelligent transmitter receiver with bluetooth automatic adaptation frequency has capacity of resisting disturbance, the interference of interference signal pair turntable can be effectively prevented especially in transfer communication system, realize channeling in zonule, put forward the feature of high-frequency utilization rate.
It is an object of the invention to be achieved through the following technical solutions: there is the intelligent transmitter receiver of bluetooth automatic adaptation frequency, it is provided with casing, it is characterized in that: described casing is provided with keyboard, LCDs, described casing is built with main circuit board, described main circuit board is provided with primary processor, described primary processor is provided with asynchronous communication interface, input/output interface, Serial Peripheral Interface (SPI), described primary processor is connected with intercommunication module communication by asynchronous communication interface, described primary processor is connected with external memory data by Serial Peripheral Interface (SPI), described primary processor is connected with blue-teeth data module communication by asynchronous communication interface, described primary processor is by input/output interface and the output of Bluetooth audio frequency module audio, described primary processor is connected with keyboard data by input/output interface, described Bluetooth audio frequency module is by the first Audio conversion switch, second Audio conversion switch controls to be connected with intercommunication module, described first Audio conversion switch is circumscribed with mike, described second Audio conversion switch is circumscribed with speaker, described Bluetooth audio frequency module, intercommunication module, blue-teeth data module is circumscribed with antenna, described primary processor, Bluetooth audio frequency module, intercommunication module, blue-teeth data module supplies electrical connection by power module.
Described primary processor adds smart bluetooth system, Bluetooth system has perfect frequency configuration, reception subsonics is arranged, launch the parameter database that subsonics is arranged, one to one or cluster transmitter receiver has only to just can be automatically performed frequency by Bluetooth system, receive subsonics, transmitting subsonics is arranged, when frequency adaptation one to one, any one transmitter receiver can serve as originating end and initiate frequency adaptation demand, another transmitter receiver is then as receiving terminal, originating end send join frequency demand just have prompting at receiving terminal, can select to accept this demand at receiving terminal and still refuse this demand, thus quickly finishing the frequency adaptation work of intercommunication one to one.
Described main circuit board frequency adaptation demand under the cluster environment of one-to-many, any one transmitter receiver can serve as originating end and initiate frequency adaptation demand, all transmitter receivers except secondary are then all as receiving terminal, originating end send join frequency demand just have prompting at receiving terminal, may be selected by accepting this demand at receiving terminal and still refuse this demand, thus being rapidly completed the frequency adaptation work of the cluster intercommunication of one-to-many.
Described main circuit board is furnished with the related application of Android and IOS system, after being matched by bluetooth and mobile phone terminal, can in simple and quick the arranging channel number, transmitting power, tranmitting frequency, reception frequency, launch coding, receive the parameter informations such as decoding of mobile phone application end.
Described main circuit board is provided with bluetooth earphone function and can be answered hung up the telephone by Bluetooth transmission, supports HFP, HSP, PBAP agreement.
Described main circuit board is provided with Baffle Box of Bluetooth function, by Bluetooth transmission can put the cell phone outward on music, support A2DP, AVRCP, OPP agreement.
The present invention adopts subsonics can prevent user in non-group from usurping channel; Capacity of resisting disturbance is strong, can be effectively prevented the interference of interference signal pair turntable especially in transfer communication system; Realize channeling in zonule, put forward high-frequency utilization rate, reach frequency sharing; The selective calling functions such as the group that can realize different group exhales, generally call, simple, convenient and practical, intercommunication function of the present invention completes above-mentioned etc. responsibility operation, particularly subsonics fast and accurately and arranges, and subsonics can prevent user in non-group from usurping channel; Capacity of resisting disturbance is strong, can be effectively prevented the interference of interference signal pair turntable especially in transfer communication system; Realize channeling in zonule, put forward high-frequency utilization rate, reach frequency sharing; The selective calling functions such as the group that can realize different group exhales, generally call, simple, convenient and practical, intercommunication function of the present invention completes above-mentioned etc. responsibility operation fast and accurately.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated:
Embodiment: referring to accompanying drawing 1, there is the intelligent transmitter receiver of bluetooth automatic adaptation frequency, it is provided with casing, described casing is provided with keyboard, LCDs, described casing is built with main circuit board, described main circuit board is provided with primary processor, described primary processor is provided with asynchronous communication interface, input/output interface, Serial Peripheral Interface (SPI), described primary processor is connected with intercommunication module communication by asynchronous communication interface, described primary processor is connected with external memory data by Serial Peripheral Interface (SPI), described primary processor is connected with blue-teeth data module communication by asynchronous communication interface, described primary processor is by input/output interface and the output of Bluetooth audio frequency module audio, described primary processor is connected with keyboard data by input/output interface, described Bluetooth audio frequency module is by the first Audio conversion switch, second Audio conversion switch controls to be connected with intercommunication module, described first Audio conversion switch is circumscribed with mike, described second Audio conversion switch is circumscribed with speaker, described Bluetooth audio frequency module, intercommunication module, blue-teeth data module is circumscribed with antenna, described primary processor, Bluetooth audio frequency module, intercommunication module, blue-teeth data module supplies electrical connection by power module, described primary processor adds smart bluetooth system, Bluetooth system has perfect frequency configuration, reception subsonics is arranged, launch the parameter database that subsonics is arranged, one to one or cluster transmitter receiver has only to just can be automatically performed frequency by Bluetooth system, receive subsonics, transmitting subsonics is arranged, when frequency adaptation one to one, any one transmitter receiver can serve as originating end and initiate frequency adaptation demand, another transmitter receiver is then as receiving terminal, originating end send join frequency demand just have prompting at receiving terminal, can select to accept this demand at receiving terminal and still refuse this demand, thus quickly finishing the frequency adaptation work of intercommunication one to one, described main circuit board frequency adaptation demand under the cluster environment of one-to-many, any one transmitter receiver can serve as originating end and initiate frequency adaptation demand, all transmitter receivers except secondary are then all as receiving terminal, originating end send join frequency demand just have prompting at receiving terminal, may be selected by accepting this demand at receiving terminal and still refuse this demand, thus being rapidly completed the frequency adaptation work of the cluster intercommunication of one-to-many, described main circuit board is furnished with the related application of Android and IOS system, after being matched by bluetooth and mobile phone terminal, can in simple and quick the arranging channel number, transmitting power, tranmitting frequency, reception frequency, launch coding, receive the parameter informations such as decoding of mobile phone application end, described main circuit board is provided with bluetooth earphone function and can be answered hung up the telephone by Bluetooth transmission, supports HFP, HSP, PBAP agreement, described main circuit board is provided with Baffle Box of Bluetooth function, by Bluetooth transmission can put the cell phone outward on music, support A2DP, AVRCP, OPP agreement.
Last it is noted that obvious, above-described embodiment is only for clearly demonstrating example of the present invention, and is not the restriction to embodiment. For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description. Here without also cannot all of embodiment be given exhaustive. And the apparent change thus extended out or variation are still among protection scope of the present invention.