CN204498206U - The telephone system of pluggable telephone adapter - Google Patents
The telephone system of pluggable telephone adapter Download PDFInfo
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- CN204498206U CN204498206U CN201520226239.0U CN201520226239U CN204498206U CN 204498206 U CN204498206 U CN 204498206U CN 201520226239 U CN201520226239 U CN 201520226239U CN 204498206 U CN204498206 U CN 204498206U
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Abstract
The utility model discloses a kind of telephone system based on the pluggable telephone adapter of USB interface.Telephone system comprises main frame and telephone adapter, main frame is with USB interface, telephone adapter comprises USB interface, processor and radio transceiver system module, and connect successively, telephone adapter is removable plug-in, and by the USB interface grafting of USB interface and main frame, main frame connects Mike and loud speaker respectively, and radio transceiver system module is wirelessly connected to base station.Telephone adapter is a kind of small-sized plug and play phone, and it by the equipment such as USB interface insertion machine top box or panel computer when phone use, can insert plain old telephone and realize double-card dual-standby function; Be applicable at home when fixed line use, be also applicable to the moving field mobile phone that is fated and use; Under the overall background of the integration of three networks, there are wide deep market prospects.Telephone adapter is not owing to having external device, and cost is low; Insert in main frame and achieve a tractor serves several purposes.
Description
Technical field
The utility model relates to wireless GSM telephone system, is specifically related to a kind of telephone system of pluggable telephone adapter.
Background technology
Plain old telephone needs to be provided with the peripheral hardwares such as screen, keyboard, battery, Mike and loud speaker, causes high expensive.Under the overall background that " three nets " merges, the strength that telephone service expands oneself is needed in broadcasting and TV field badly, a kind of plug-in mobile phone adapter can be designed, i.e. insertion machine top box or panel computer, when Set Top Box can see that TV, EOC surf the Net, also the function of making a phone call can be realized by telephone adapter.
Summary of the invention
The utility model main purpose is a kind of telephone system based on the pluggable telephone adapter of USB interface of design.This system can realize a kind of pluggable mobile phone adapter, and telephone adapter does not have display screen, and the input and output of voice are all that the external equipment connected by USB interface is controlled, as Set Top Box or panel computer.Telephone adapter will insert main frame by USB interface just can realize telephony feature.
The technical scheme that the utility model is taked is: a kind of telephone system of pluggable telephone adapter, it is characterized in that, described telephone system comprises main frame and telephone adapter, described main frame is with USB interface, telephone adapter comprises USB interface, processor and radio transceiver system module, and connect successively, telephone adapter is removable plug-in, and by the USB interface grafting of USB interface and main frame, main frame connects Mike and loud speaker respectively, and the radio transceiver system module of telephone adapter is wirelessly connected to base station.
The beneficial effects of the utility model are: telephone adapter is a kind of small-sized plug and play phone, and it can pass through USB interface, and the equipment such as insertion machine top box or panel computer, when phone use, even insert plain old telephone and realize double-card dual-standby function; Be applicable at home when fixed line use, be also applicable to the moving field mobile phone that is fated and use; Under the overall background of the integration of three networks, there are wide deep market prospects.Telephone adapter only than common U disk a little greatly a bit, portably uses conveniently, inserts GSM phonecard, can realize transmission and the reception of radio audio signals in draw-in groove.
The important difference of telephone adapter of the present utility model and plain old telephone does not have display screen and button, and it is a speech processes, USB/ telephone protocol encapsulates and the system of voice distribution, and the functional realiey of telephone adapter depends on main frame.Owing to not having external device, cost is low; Insert in main frame and achieve a tractor serves several purposes.
Accompanying drawing explanation
Fig. 1 is the utility model system principle diagram;
Fig. 2 and Fig. 3 is the electrical schematic diagram of telephone adapter embodiment in Fig. 1 respectively;
Fig. 4 is treatment system and radio signal transmission schematic diagram in Fig. 2 and Fig. 3;
Fig. 5 is the utility model system general flow chart;
Fig. 6 is the utility model system dialing process figure;
Fig. 7 is that the utility model system monitors incoming call flow chart;
Fig. 8 is the utility model system voice transmission flow figure;
Fig. 9 is that the utility model system voice receives flow chart;
Figure 10 is the utility model system call initiatively closing flow path figure;
Figure 11 is that the utility model system is conversed passive closing flow path figure.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
With reference to Fig. 1, a kind of telephone system of pluggable telephone adapter comprises main frame S10 and telephone adapter S11, main frame S10 is with USB interface S101, telephone adapter S11 comprises USB interface S111, processor S112 and radio transceiver system module S113, and connect successively, telephone adapter S11 is removable plug-in, and pass through the USB interface S101 grafting of USB interface S111 and main frame S10, main frame S10 connects Mike S13 and loud speaker S14 respectively, and the radio transceiver system module S113 of telephone adapter S11 is wirelessly connected to base station S12.
Telephone adapter in native system is mainly used to the middle rotaring carrier doing transfer of data, and namely transmission is transmitted in both directions.Main function of system and to realize principle as follows:
The USB interface S101 of main frame S10 and the USB interface S111 of telephone adapter S11 is for transmitting bidirectional pulse code modulated audio data and control data.Main frame S10 is the equipment with USB interface S101 such as such as Set Top Box or panel computer etc.
Usb protocol, based on usb audio kind equipment, adopts synchronous transfer module, and the USB interface S111 of telephone adapter S11 adopts from Model Design.USB interface S111 comprises power supply 5V, the ground connection GND in printed circuit board front, differential signal D+ and differential signal D-tetra-pins.
The processor S112 of telephone adapter S11 and USB interface S111 two-way communication, control information and pulse code modulation voice data are packaged into the Packet Generation of usb protocol form to USB interface S111 by processor S112, it also receives the usb data from USB interface S111 simultaneously, and is converted to independently control information and pulse code modulation voice data.USB interface S111 can be embedded in processor S112.Processor S112 is responsible for the parsing of usb protocol, encapsulation and packing, is also responsible for the parsing of gsm protocol, encapsulation and packing, has task poll to detect, also have interruption to report.
The radio transceiver system module S113 of telephone adapter S11 is responsible for analog-to-digital conversion, frequency inverted, is also responsible for communicating with processor S112, base station S12.Processor S112 adopts digital baseband MSP430F1121 processor chips, and it is a super low-power consumption, high performance 16 reduced instruction set computer microcontrollers.Radio transceiver system module S113 is the TRF6900 rf chip of TI, and its inside is integrated with radiating circuit and receiving circuit.
The design of telephone adapter physical circuit as shown in Figures 2 and 3, the processor of telephone adapter adopts MSP430F1121 chip U2, radio transceiver system adopts TRF6900 chip U1, 2 pin of TRF6900 chip U1 are input, 3 pin ground connection, 4 pin are by electric capacity C7 ground connection, 5 pin are output, ground connection after 6 pin are connected with 7 pin, 8 pin are by resistance R1 ground connection, one end of 9 pin contact resistance R2 and electric capacity C8, the other end of 10 pin contact resistance R2 and one end of electric capacity C9, simultaneously one end of 10 pin also contact resistance R4 and resistance R3, 11 pin are connected to 12 pin of MSP430F1121 chip U2 by resistance R9, the other end ground connection respectively of electric capacity C8 and electric capacity C9, 12 pin of TRF6900 chip U1 meet power supply VCC, and by electric capacity C10 ground connection, 12 pin of TRF6900 chip U1 are connected with 20 pin again simultaneously, by electric capacity C15 ground connection after connecting, 13 pin of TRF6900 chip U1 connect inductance L 2, one end of electric capacity C11 and electric capacity C12, the other end of other end contact resistance R4 of electric capacity C12 and the negative pole of diode D1, 14 pin of TRF6900 chip U1 connect the other end of inductance L 2 and electric capacity C11, also connect one end of electric capacity C13 and resistance R5 simultaneously, the other end of electric capacity C13 connects the negative pole of diode D1 and the other end of resistance R3, the positive pole of diode D1 and diode D2 and the other end of resistance R5 ground connection respectively, the 15 pin ground connection of TRF6900 chip U1, 16 pin are connected to 3 pin of MSP430F1121 chip U2, 17 pin are connected to 9 pin of MSP430F1121 chip U2, 18 pin are by electric capacity C14 ground connection, 19 pin are connected to 17 pin of MSP430F1121 chip U2, ground connection after 21 pin are connected with 22 pin, 23 pin connect crystal oscillator X3 by resistance R6, one end of resistance R7 and electric capacity C16, 24 pin connect the other end of crystal oscillator X3 and resistance R7, also connect one end of electric capacity C17 and electric capacity C18 simultaneously, electric capacity C16, the other end ground connection respectively of electric capacity C17 and electric capacity C18, 25 pin of TRF6900 chip U1 are connected to 18 pin of MSP430F1121 chip U2, 26 pin are connected to 19 pin of MSP430F1121 chip U2, 27 pin are connected to 20 pin of MSP430F1121 chip U2, 28 pin are connected to 16 pin of MSP430F1121 chip U2, 29 pin and 32 pin are respectively by electric capacity C19 and electric capacity C20 ground connection, 34 pin are connected inductance L 3 respectively with 35 pin, resistance R8, the two ends of electric capacity C21 and electric capacity C22, 36 pin meet power supply VCC after being connected with one end of electric capacity C6, the other end ground connection of electric capacity C6, ground connection after 37 pin are connected with 43 pin by electric capacity C3, 39 pin and 42 pin are connected 1 pin of crystal oscillator X2 and crystal oscillator X1 respectively, 41 pin and 44 pin are connected 2 pin of crystal oscillator X2 and crystal oscillator X1 respectively, the 3 pin ground connection respectively of crystal oscillator X2 and crystal oscillator X1, power supply VCC is met behind one end of the 45 pin connection electric capacity C5 of TRF6900 chip U1, the other end ground connection of electric capacity C5, 46 pin of TRF6900 chip U1 connect one end of inductance L 1 and electric capacity C2, the other end ground connection of inductance L 1, 47 pin of TRF6900 chip U1 connect the other end of electric capacity C2 and one end of inductance L 4, power supply VCC is met after the other end of inductance L 4 is connected with one end of electric capacity C1, power supply VCC is met after 47 pin of TRF6900 chip U1 are connected with one end of electric capacity C4, the other end of electric capacity C4 is connected rear ground connection with 1 pin of TRF6900 chip U1, power supply VCC is met after 2 pin of MSP430F1121 chip U2 are connected with one end of resistance R11, the other end of resistance R11 is by electric capacity C25 ground connection, 5 pin of MSP430F1121 chip U2 connect one end of crystal oscillator X4, and by electric capacity C24 ground connection, 6 pin of MSP430F1121 chip U2 connect the other end of crystal oscillator X4, and by electric capacity C23 ground connection, 11 pin of MSP430F1121 chip U2 are by resistance R10 ground connection.
The crystal oscillator of telephone adapter adopts the working method of parallel resonance, and resistance R6 and electric capacity C16 forms frequency divider for limiting the drive level of crystal oscillator, and resistance R6 should be enough little, to guarantee that oscillator is be less than can starting of oscillation in minimum situation.Resistance R7 is biasing resistor, for arranging the bias point of inverter.Capister selects the SMV1249-079 of Murata company.The power supply of telephone adapter uses circumscribed USB to power.
As shown in Figure 4, main interface specification is as follows for the processor of telephone adapter and the communication interface of radio transceiver system module:
TX-DATA interface is the parallel bus interface sending data for the treatment of device to radio transceiver system module; DATA-OUT interface is the parallel bus interface sending data for radio transceiver system module to processor; LOCK-DET interface is for the treatment of the frequency-locked state of device monitoring wireless radio-frequency system module; CLOCK interface, DATA interface, STROBE interface send control information to the register of radio transceiver system module for the treatment of device, make radio transceiver system module complete corresponding radio-frequency enabled.
Radio transceiver system module is input as stable 3V voltage, reinforces high frequency antenna.
The operating frequency range of radio transceiver system module is 850-950MHz, and power supply voltage range is 2.2-3.6V, and radio frequency power output is+5dBm, supports FM/FSK modulating mode.
Wireless signal enters radio transceiver system module by antenna, first through low noise amplifier, provides the gain of 13dB; Signal after amplification enters frequency mixer, and signal frequency conversion is intermediate frequency, and amplify to two-stage through one, signal can obtain stronger gain; Send into FM/FSK modulation system, carry out demodulation, data after demodulating exports through DATA-OUT pin.
The transmission of radio transceiver system module is through TX-DATA pin, and digital frequency synthesizer is modulated to intermediate frequency, then by frequency multiplication of phase locked loop to radio frequency, power amplifier is sent by antenna after amplifying.
Systemic-function flow process of the present utility model relates generally to dialing process, monitors incoming call flow process, voice transmission flow and phonetic incepting flow process and close voice call flow process.
With reference to Fig. 5, system executive main-process stream has following steps:
Step one. telephone adapter is in standby idle condition, waits for the request of main frame Sending dialled number, and whether monitor base station has incoming call requests simultaneously.
Step 2. telephone adapter judges whether the dial request receiving main frame transmission, and whether listening to base station has incoming call requests, if receive the dial request of main frame transmission, then enters dialing process; If listen to base station have incoming call requests, then enter and monitor incoming call flow process, otherwise continue to wait for and monitor incoming call requests.
Step 3. telephone adapter judges whether phone is connected, if closing of the circuit, then enters voice and sends and phonetic incepting flow process, otherwise continue to judge whether phone is connected.
Step 4. telephone adapter judges whether end of conversation, if end of conversation, then enters and closes voice call flow process, otherwise continue to judge whether end of conversation.
With reference to Fig. 6, dialing process has the following steps:
(1). the request of main frame Sending dialled number is to telephone adapter;
(2). telephone adapter receives data, usb protocol is converted to GSM dial request agreement, beats packet to radio transceiver system;
(3). dial request is sent to base station by radio transceiver system, and waits for base station in response;
(4). after base station in response, the other side's bell sound is transferred to telephone adapter;
(5). base station judges whether counterpart telephone is connected, if counterpart telephone is connected, base station sends turn-on response information, and turn-on response information is sent to main frame by telephone adapter, and main frame and telephone adapter enter talking state simultaneously.
With reference to Fig. 7, monitoring incoming call flow process is: telephone adapter poll receives GSM control protocol information, when having monitored incoming call, then notify main frame, after response of host, the call of notice telephone adapter starts, and telephone adapter is started by radio transceiver notifications base station call, and main frame and telephone adapter enter talking state.
With reference to Fig. 8, voice transmission flow is: the speech conversion of Mike is that pulse code modulation voice data sends to telephone adapter by USB interface by main frame, transmit some audio control information simultaneously, pulse code modulation is become audio coding by telephone adapter, encapsulation gsm protocol, packing, sends to radio transceiver system, finally sends to base station by radio transceiver system.
With reference to Fig. 9, phonetic incepting flow process has the following steps: telephone adapter poll receives voice, if receive the new voice message sent from radio transceiver system, then this voice messaging is carried out gsm protocol parsing and audio decoder, the data again audio data decoder being packaged into USB form send to main frame, and audio frequency is exported to loud speaker by aster Resolution usb data.
With reference to Figure 10, close voice call flow process and comprise initiatively closing flow path and passive closing flow path, wherein initiatively closing flow path has the following steps:
(1). main frame is by sending end of conversation request to telephone adapter;
(2). after telephone adapter receives information, usb protocol is converted to GSM end of conversation request protocol, then beats packet to radio transceiver system;
(3). end of conversation request is sent to base station by radio transceiver system, and waits for base station in response;
(4) if. the request of base station in response end of conversation, telephone adapter then by base station reply end of conversation solicited message send to main frame, main frame and adapter enter end of conversation state; If base station does not respond end of conversation request, then continue to wait for base station in response.
With reference to Figure 11, passive closing flow path has the following steps:
(1). telephone adapter poll receives GSM control protocol information, monitors base station call ending request;
(2) if. listen to base station call ending request, then notify main frame end of conversation, telephone adapter and main frame enter end of conversation state; If do not listen to base station call ending request, then continue to monitor base station call ending request.
The information that whole system receives comprises control data, voice request data and speech data.Speech data is pulse code modulation data.
The process of telephone adapter to information comprises the protocol encapsulation of the other side and local number, Call Waiting, the coding of voice data and uniform packing, and these data are sent to base station with standard gsm wireless agreement.
The transmission of wireless protocols data sends to base station by modulator-demodulator and radio frequency through digital-to-analogue conversion and frequency inverted.
The composition of telephone adapter mainly comprises USB interface, processor and radio transceiver system module, also should comprise phonecard channel mould block, can also configure basic wifi/ bluetooth module.
Claims (2)
1. the telephone system of a pluggable telephone adapter, it is characterized in that, described telephone system comprises main frame (S10) and telephone adapter (S11), described main frame (S10) is with USB interface (S101), telephone adapter (S11) comprises USB interface (S111), processor (S112) and radio transceiver system module (S113), and connect successively, telephone adapter (S11) is removable plug-in, and by USB interface (S101) grafting of USB interface (S111) with main frame (S10), main frame (S10) connects Mike (S13) and loud speaker (S14) respectively, the radio transceiver system module (S113) of telephone adapter (S11) is wirelessly connected to base station (S12).
2. the telephone system of pluggable telephone adapter according to claim 1, it is characterized in that, the processor of described telephone adapter adopts MSP430F1121 chip U2, radio transceiver system adopts TRF6900 chip U1, 2 pin of TRF6900 chip U1 are input, 3 pin ground connection, 4 pin are by electric capacity C7 ground connection, 5 pin are output, ground connection after 6 pin are connected with 7 pin, 8 pin are by resistance R1 ground connection, one end of 9 pin contact resistance R2 and electric capacity C8, the other end of 10 pin contact resistance R2 and one end of electric capacity C9, simultaneously one end of 10 pin also contact resistance R4 and resistance R3, 11 pin are connected to 12 pin of MSP430F1121 chip U2 by resistance R9, the other end ground connection respectively of electric capacity C8 and electric capacity C9, 12 pin of TRF6900 chip U1 meet power supply VCC, and by electric capacity C10 ground connection, 12 pin of TRF6900 chip U1 are connected with 20 pin again simultaneously, by electric capacity C15 ground connection after connecting, 13 pin of TRF6900 chip U1 connect inductance L 2, one end of electric capacity C11 and electric capacity C12, the other end of other end contact resistance R4 of electric capacity C12 and the negative pole of diode D1, 14 pin of TRF6900 chip U1 connect the other end of inductance L 2 and electric capacity C11, also connect one end of electric capacity C13 and resistance R5 simultaneously, the other end of electric capacity C13 connects the negative pole of diode D1 and the other end of resistance R3, the positive pole of diode D1 and diode D2 and the other end of resistance R5 ground connection respectively, the 15 pin ground connection of TRF6900 chip U1, 16 pin are connected to 3 pin of MSP430F1121 chip U2, 17 pin are connected to 9 pin of MSP430F1121 chip U2, 18 pin are by electric capacity C14 ground connection, 19 pin are connected to 17 pin of MSP430F1121 chip U2, ground connection after 21 pin are connected with 22 pin, 23 pin connect crystal oscillator X3 by resistance R6, one end of resistance R7 and electric capacity C16, 24 pin connect the other end of crystal oscillator X3 and resistance R7, also connect one end of electric capacity C17 and electric capacity C18 simultaneously, electric capacity C16, the other end ground connection respectively of electric capacity C17 and electric capacity C18, 25 pin of TRF6900 chip U1 are connected to 18 pin of MSP430F1121 chip U2, 26 pin are connected to 19 pin of MSP430F1121 chip U2, 27 pin are connected to 20 pin of MSP430F1121 chip U2, 28 pin are connected to 16 pin of MSP430F1121 chip U2, 29 pin and 32 pin are respectively by electric capacity C19 and electric capacity C20 ground connection, 34 pin are connected inductance L 3 respectively with 35 pin, resistance R8, the two ends of electric capacity C21 and electric capacity C22, 36 pin meet power supply VCC after being connected with one end of electric capacity C6, the other end ground connection of electric capacity C6, ground connection after 37 pin are connected with 43 pin by electric capacity C3, 39 pin and 42 pin are connected 1 pin of crystal oscillator X2 and crystal oscillator X1 respectively, 41 pin and 44 pin are connected 2 pin of crystal oscillator X2 and crystal oscillator X1 respectively, the 3 pin ground connection respectively of crystal oscillator X2 and crystal oscillator X1, power supply VCC is met behind one end of the 45 pin connection electric capacity C5 of TRF6900 chip U1, the other end ground connection of electric capacity C5, 46 pin of TRF6900 chip U1 connect one end of inductance L 1 and electric capacity C2, the other end ground connection of inductance L 1, 47 pin of TRF6900 chip U1 connect the other end of electric capacity C2 and one end of inductance L 4, power supply VCC is met after the other end of inductance L 4 is connected with one end of electric capacity C1, power supply VCC is met after 47 pin of TRF6900 chip U1 are connected with one end of electric capacity C4, the other end of electric capacity C4 is connected rear ground connection with 1 pin of TRF6900 chip U1, power supply VCC is met after 2 pin of MSP430F1121 chip U2 are connected with one end of resistance R11, the other end of resistance R11 is by electric capacity C25 ground connection, 5 pin of MSP430F1121 chip U2 connect one end of crystal oscillator X4, and by electric capacity C24 ground connection, 6 pin of MSP430F1121 chip U2 connect the other end of crystal oscillator X4, and by electric capacity C23 ground connection, 11 pin of MSP430F1121 chip U2 are by resistance R10 ground connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520226239.0U CN204498206U (en) | 2015-04-15 | 2015-04-15 | The telephone system of pluggable telephone adapter |
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| CN201520226239.0U CN204498206U (en) | 2015-04-15 | 2015-04-15 | The telephone system of pluggable telephone adapter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108579145A (en) * | 2018-05-23 | 2018-09-28 | 盐城派威机械有限公司 | A kind of new-type fuel tank filter and filter method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108579145A (en) * | 2018-05-23 | 2018-09-28 | 盐城派威机械有限公司 | A kind of new-type fuel tank filter and filter method |
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