CN2648739Y - Mobile radio relay user exchanger - Google Patents
Mobile radio relay user exchanger Download PDFInfo
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- CN2648739Y CN2648739Y CN 03218997 CN03218997U CN2648739Y CN 2648739 Y CN2648739 Y CN 2648739Y CN 03218997 CN03218997 CN 03218997 CN 03218997 U CN03218997 U CN 03218997U CN 2648739 Y CN2648739 Y CN 2648739Y
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Abstract
The utility model relates to a wireless mobile relay PBX, comprising a wireless communication relay PBX and a wired communication relay PBX. A main control digital signal processor is respectively connected with a wireless interface module, a user interface speech codec, a switch standard user interface circuit, an interface extended circuit, a wireless interface module speech signal codec and an interface circuit. The flexibility of the choices of the service function is enhanced by the mobile relay service, and the service performance can be increased by the intelligent mobile relay function developed by the mobile intelligent net technology. The main effect of the utility model can attract the enterprise fixed telephone user that use the PBX, thereby expending the business scope, enhancing the competitive advantage of the mobile operator concerning the users of the PBX and increasing the traffic and the operational revenue. The utility model can be widely applied to various working environment, public areas, villas, holiday villages and countryside and provides high quality and convenient telephone service for the users, which has good social and economic benefits.
Description
One, technical field
The utility model relates to mobile wireless trunk subscriber switch, and particularly suitable can be connected to the GSM/CDMA public telephone network with small switch by built-in GSM/CDMA module in the area that mobile communications network covers.
Two, background technology
On the market existing personal user's switch only provide conversation the repertoire that should possess, individual device has also only added the function of some caller identifications, do not have as for data functions such as short messages at all, all need lay telephone wire to every phone of trunk subscriber simultaneously, especially to not realizing wireless network communication in unit or sub-district or the samll cities and towns' scope.
Three, summary of the invention
Goal of the invention of the present utility model provides and a kind of mobile communications network inserted the minimized office telephone network, connects public telephone network by the GSM/CDMA network, and is flexible and convenient to use, do not need to lay the mobile wireless trunk subscriber switch of copper cable.
The technical scheme that realizes goal of the invention is to solve like this: a kind of mobile wireless trunk subscriber switch, comprise wireless and the wire communication repeater exchanger, its improvements are, also comprise a master control digital signal processor, the master control digital signal processor is connected with the user interface audio coder ﹠ decoder (codec), the user interface audio coder ﹠ decoder (codec) is connected with the standard of the exchanger user interface circuit again, the standard of the exchanger user interface circuit is connected with the master control digital signal processor, the interface expanded circuit links to each other with the master control digital signal processor, connect radio interface module voice signal encoding and decoding and interface circuit on the master control digital signal processor, connect radio interface module on encoding and decoding of radio interface module voice signal and the interface circuit, radio interface module links to each other with the master control digital signal processor.
The master control digital signal processor is made up of interface J2, module DD3, DD1, dtmf signal encoding and decoding, and interface J2 links to each other with module DD3, module DD3, DTMF are connected with module DD1 respectively.
Described radio interface module one end has SIM card circuit interface, the other end that the GSM circuit interface is arranged.
User interface audio coder ﹠ decoder (codec) one end has the audio frequency simulation interface, and the other end has a musical audio digital interface.
The phone interface of described the standard of the exchanger user interface circuit respectively with phone feed power supply, phone ringing-current feed, voice signal input/output circuitry, ring drive circuit, pluck/the on-hook scanning circuit is connected, phone feed power supply is same again simultaneously plucks/and the on-hook scanning circuit is continuous, phone ringing-current feed links to each other with the ring drive circuit, the voice signal input/output circuitry joins with the phone interface, links to each other with telephone set by external telephone wire; Output/the input of 4IN2, OUT2 speech is joined with the analog end of voice encoding/decoding among the DA7 respectively.
Described interface expanded circuit is meant the usb circuit of expansing serial interface circuit and expansion.
Encoding and decoding of described radio interface module voice signal and interface circuit are respectively equipped with wireless module audio output circuit and PCM decoding output circuit at the output of audio coder ﹠ decoder (codec) DA5 module, MCP1, MCN1 are audio frequency speech analog input end, link to each other with the same pin of J6 respectively; EPP1, EPN1 are the analog output of speech among the J6; By audio coder ﹠ decoder (codec) DA5 respectively encoding and decoding become serial digital signal DX and the serial digital signal DR of DA5 be decoded into simulated audio signal output, DX, DR respectively with DD3 in the corresponding port join.
The utility model compared with prior art, PBX wireless access business mainly plays enterprise with the come in and go out effect of route trunk line of general Private Branch Exchange PBX.On the basis that the PSTN of original PBX side trunk line inserts, the gsm module terminal according to standard provides the mobile trunk line of mobile network side to insert in addition.By mobile junction traffic, can strengthen the flexibility that business function is selected, can utilize the mobile relay function of mobile intelligent net technological development intelligence to improve service feature.The main effect of present device can attract to use the fixed telephone user of enterprise of PBX, enlarges the scope of business, and improves the competitive advantage of mobile operator at the PBX customer-side, improves telephone traffic and operation income.Can be widely used in areas such as various working environments, public domain, villa, holiday village, rural area, for the user provides high-quality telephone service easily.Have good social and economic benefit.
The key technical indexes of the present utility model:
Working temperature: 0 ℃-+55C makes frequency range: E-GSM 900/1800MHz
Operating voltage: AC 220V carrier spacing: 200KHz
Peak power output: 2W @ 900MHz input dynamic range: 62dB
Receiving sensitivity :-104dbm maximum frequency deviation: ± 0.1ppm
Phase error:＜5 ° of RMS frequency selectivities:＞+9dBc @ 200KHz
Antenna gain:＞1.5dB subscriber line interface: RJ11
Dialing tone frequency: 450Hz on-hook voltage: 48V
Conversation voltage: 9V off-hook electric current: 35mA
Ringing voltage: 75V serial ports speed: 9.6kbit/s
The technical standard that radio reception device meets: subscribers feeder: meet relevant regulations among the GB/T15279.
Ringing signal: meet relevant regulations among the GB/T15279.
Wave point: meet relevant regulations among the YD/T884-1996.
Major technique function of the present utility model:
900MHZ/1800MHZ GSM digital mobile network.Can dial national distance and international long-distance.
Can define hot key voluntarily, make things convenient for use can store 10 groups of telephone numbers
Can dial other free words sign indicating numbers of free emergency call and operator regulation.
There is forbidden number that function is set.
Redial key is arranged, redial last number, this number is eliminated when on-hook.
The automatic measuring ability of phone is found automatic failure alarm.
Can receive the short message instruction, revise the phone running parameter.
But Alternation Display loCal number and current time.
Have volume adjusting function, and the Pyatyi adjustable range is arranged.
Have the bias light function, make things convenient for use night.
Support caller identification.
Sudden strain of a muscle breaks, redials, quiet, storage and hot line facility adopt mains-supplied, and is furnished with non-maintaining reserve rechargeable battery.
Prompting missed call.
The double frequency built-in aerial, the convenient installation.
Lock machine, pintle hook lock prevent SIM.
Four, description of drawings
This connects block diagram for the utility model structure Fig. 1;
Fig. 2 is the radio interface module circuit theory diagrams of Fig. 1;
Fig. 3 is encoding and decoding of radio interface module voice signal and the interface circuit schematic diagram of Fig. 1;
Fig. 4 is the master control digital signal processor circuit schematic diagram of Fig. 1;
Fig. 5 is the expansing serial interface circuit theory diagrams of Fig. 1;
Fig. 6 is the usb circuit schematic diagram of the expansion of Fig. 1;
Fig. 7 is the user interface audio coder ﹠ decoder (codec) circuit theory diagrams of Fig. 1;
Fig. 8 is the standard of the exchanger user interface circuit schematic diagram of Fig. 1.
Five, embodiment
This is a kind of embodiment of utility model for an accompanying drawing
Below in conjunction with embodiment this is described further for the content of utility model:
With reference to shown in Figure 1, comprise wireless and the wire communication repeater exchanger, its master control digital signal processor 2 interconnects with wireless module interface 1, user interface audio coder ﹠ decoder (codec) 3, the standard of the exchanger user interface circuit 4, interface expanded circuit 5, the encoding and decoding of radio interface module voice signal and interface circuit 6 respectively.Built-in GSM/CDMA transceiver module in small switch, the area in that mobile communications network covers can be connected to the GSM/CDMA public telephone network with small switch by built-in GSM/CDMA module.At first start with, insert its phone call functions, analogue audio frequency translation function, protocol conversion function, data service function from the GSM terminal.It is changed accordingly, be converted to the signal of the subscriber phone function identification of standard.Entire process is finished by the expansion subsystem of central control system and some necessity.
Shown in Figure 2, wireless module interface 1 contains SIM card interface circuit and GSM interface circuit two parts, the output parallel connection of SIM card interface circuit two capacitor C 27, C29, connect a diode D2 on the positive pole of power supply B1, in resistance R 136 of the two ends of diode D2 cross-over connection, and be connected with SIM card interface 11, series resistance R63 on the interface 9, the modular power source input respectively shunt capacitance C26, C60 and series resistance R132, R133 because of itself also being an IC in the SIM card, C29 is its reset capacitance, and C27 is the filter capacitor of SIM card power supply; C26, C60 are the power filtering capacitor of wireless module; Battery provides power supply by R136, D2 for the module clock, and R136 is for must completely charging to battery under the situation that electricity is arranged when system; R63 is a pull down resistor; R132, R133 is the discharge circuit of shutdown back modular power source partition capacitance.The GSM interface circuit is made up of audio interface, SIM card interface, protocol interface, modular power source interface.Above-mentioned each interface all joins with prior mobile network interface, audio interface, protocol controller interface.Wherein the protocol controller interface is used for the related protocol of relevant wireless network is discerned and controlled; Audio interface is used for connecting with the voice audio network of PBX; Power supply connects the 5V power supply, and protocol interface directly joins with dsp chip; Audio interface links to each other with the voice signal codec; SIM card interface and user's SIM card are joined.
Shown in Figure 3, encoding and decoding of radio interface module voice signal and interface circuit 6, it is that voice signal to the GSM/CDMA wireless module carries out encoding and decoding and interface circuit.Be respectively equipped with wireless module audio frequency input circuit and PCM decoding input circuit at the input of DA5 module, wherein in the wireless module audio frequency input circuit series and parallel resistance R 54, R45, R55, R48, R49 and capacitor C 22, C24; PCM decoding input circuit connects capacitor C 25, output in the DA5 module is respectively equipped with wireless module audio output circuit and PCM decoding output circuit, wherein in the wireless module audio output circuit series and parallel resistance R 46, R47, capacitor C 20, C21 and resistance R 50, R51, capacitor C 23, R52, R53, R54, R55, R45, R52, R53 form voicefrequency circuit middle impedance match circuit respectively; C21, C22, C23, C24 are respectively the audio frequency coupling capacitance; R48, R49, R46, R50 form audio gain with the amplifier of DA5 inside respectively and adjust circuit.
Shown in Figure 4, comprise main control unit digital signal processor 2, main control unit DSP digital signal processor 2 is made up of interface J2, module DD3, DD1, dtmf signal encoding and decoding, wherein 93 of the input of module DD3,94 node the place aheads are connected with resistance R 33,13,14 node the place aheads and are connected with capacitor C 12, C13 and oscillator X1; Module DD3 also connects a dtmf signal codec; Series capacitance C10 between 16 and 32 nodes of the output of module DD1; This main control unit DSP digital signal processor 2 is to be achieved as follows function by software program: a, double-tone are received frequently/are sent out; B, digital time division switching network; C, protocal analysis, conversion, signal controlling, calling control; All voice signals such as d, system's setting, voice mail, telephonograph all are to become digital signal to handle.The DD3 side that R33 joins is an input, can not be unsettled, admittedly by R33 ground connection; C12, C13, X1 forms resonant circuit, the master clock that the generation system is required with the internal circuit of DD3; C10 is the filter capacitor of DD1.
Figure 5 shows that the expansing serial interface circuit, comprise module DD9, resistance R 134 of cross-over connection on the IP2 interface of module DD9 input, on interface 39, connect a module DD5, capacitor C 34 of 22,44 interface Shang And connection of module DD9 input, wherein R134 is a pull-up resistor, plays driving action; Interface 39 is a gating signal, provides to him by DD5; Input 22 is ground, and 24 is the power supply of DD9, and C34 is the filter capacitor of DD9.Owing to consider the flexible upgradability of systems soft ware during system design, so expanded USB interface.
Figure 6 shows that the usb circuit schematic diagram of expansion, this circuit comprises module DD4, is connected with resistance R 11, R15 respectively on interface 19,20 at the output of module DD4, also connects a resistance R 9 at the output of resistance R 11; Fen other And connection resistance R 28, crystal oscillator X2 and connect two capacitor C 14, C16 again on interface 26,27; The capacitor C 19 of between interface 21 and 22, connecting.Configuration, the upgrading of software, recording, receipts/send out and store short message etc. by the usb circuit feasible system.C14, C16, X2, R28 forms resonant circuit with the internal circuit of DD4, is used for providing work clock to DD4; Interface 21,22 be respectively DD4 power supply, the ground input, C19 here is a filter capacitor; R11, R15 connect the output and the input of USB interface respectively, and these two resistance play the current-limiting protection effect here, and R9 then provides driving for output.
Fig. 7 is the encoding and decoding speech circuit theory diagrams of user interface, this circuit comprises an audio frequency simulation interface and a musical audio digital interface, in 17 interfaces of the input of the module DA7 resistance R 93 that is connected in series, the 18 interfaces resistance R 96 that is connected in series, R97,13 and the 14 interfaces resistance R 98 that is connected in series, R103, R104,8 and the 9 interfaces resistance R 107 that is connected in series, R109, R110,19,12,10, Yi And connection of 4 interfaces connects capacitor C 54, C52, C55, C53, output interface 3 at module DA7, be connected with capacitor C 57 on 7,36 and 38 between be connected with capacitor C 58,15 connect capacitor C 45, module DA7 finishes the digital voice signal that will handle through DSP and changes by modulus/digital-to-analogue coding/decoding according to corresponding standard, adopt 4 passage encoding and decoding speechs, make system become standard analog 4 line voice signals.Resistance R 89 two ends cross-over connections be the U1 operational amplifier, because of system is the single supply working method, resistance R 99, R100 provides a reference level for 12 pin of U1; Resistance R 92, R89 is that audio gain is adjusted circuit; R96, R97, R93, R103, R104, R98, R109, R110, R107, R116, R117, the inner big amplifier of R111 and DA7 is formed 4 road speech gain adjustment circuits; C54, C52, C53, C55 are respectively the coupling capacitance of DA7 audio output; C57, C58 are the filter capacitor of DA7.
Figure 8 shows that the standard of the exchanger user interface circuit schematic diagram.This circuit comprises that user interface circuit partly divides two parts, and a part is the phone feed circuit, mainly by R108, and T15, T17, R123, R129, R131, R127 and protective circuit VD6 form, and wherein the DECT of R127 side is a picking/hanging machine detection circuit; Another part is a ringing circuit, by R114, and R115, R121, R125 and T11, T13 forms.Wherein inverter DD6 produces the ringing-current source of standard under the cooperation of RINGIN.DET is used for the condition discrimination to J12, and RINGIN makes the substation jingle bell.
Claims (7)
1, a kind of mobile wireless trunk subscriber switch, comprise wireless and the wire communication repeater exchanger, it is characterized in that, also comprise a master control digital signal processor (2), master control digital signal processor (2) is connected with user interface audio coder ﹠ decoder (codec) (3), user interface audio coder ﹠ decoder (codec) (3) is connected with the standard of the exchanger user interface circuit (4) again, the standard of the exchanger user interface circuit (4) is connected with master control digital signal processor (2), interface expanded circuit (5) links to each other with master control digital signal processor (2), master control digital signal processor (2) is gone up and is connected radio interface module voice signal encoding and decoding and interface circuit (6), and encoding and decoding of radio interface module voice signal and interface circuit (6) are gone up and connected radio interface module (1), radio interface module (1) links to each other with master control digital signal processor (2).
2, mobile wireless trunk subscriber switch according to claim 1, it is characterized in that, described master control digital signal processor (2) is made up of interface (J2), module (DD3, DD1, DTMF) signal codec, and interface (J2) links to each other with module (DD3), module (DD3, DTMF) is connected with module (DD1) respectively.
3, mobile wireless trunk subscriber switch according to claim 1 is characterized in that, described radio interface module (1) one end has SIM card circuit interface, the other end that the GSM circuit interface is arranged.
4, mobile wireless trunk subscriber switch according to claim 1 is characterized in that, described user interface audio coder ﹠ decoder (codec) (3) one ends have the audio frequency simulation interface, and the other end has a musical audio digital interface.
5, mobile wireless trunk subscriber switch according to claim 1, it is characterized in that, the phone interface of described the standard of the exchanger user interface circuit (4) respectively with phone feed power supply, phone ringing-current feed, voice signal input/output circuitry, ring drive circuit, pluck/the on-hook scanning circuit is connected, phone feed power supply is same again simultaneously plucks/and the on-hook scanning circuit is continuous, phone ringing-current feed links to each other with the ring drive circuit, the voice signal input/output circuitry joins with the phone interface, links to each other with telephone set by external telephone wire; Output/the input of 4IN2, OUT2 speech is joined with the analog end of voice encoding/decoding among the DA7 respectively.
6, mobile wireless trunk subscriber switch according to claim 1 is characterized in that, described interface expanded circuit (5) is meant the usb circuit of expansing serial interface circuit and expansion.
7, mobile wireless trunk subscriber switch according to claim 1, it is characterized in that encoding and decoding of described radio interface module voice signal and interface circuit (6) are respectively equipped with the wireless module audio output circuit and the output circuit of (PCM) decoding at the output of audio coder ﹠ decoder (codec) (DA5) module, MCP1, MCN1 are audio frequency speech analog input end, link to each other with the same pin of J6 respectively; EPP1, EPN1 are the analog output of speech among the J6; By audio coder ﹠ decoder (codec) DA5 respectively encoding and decoding become serial digital signal DX and the serial digital signal DR of DA5 be decoded into simulated audio signal output, DX, DR respectively with DD3 in the corresponding port join.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03218997 CN2648739Y (en) | 2003-05-30 | 2003-05-30 | Mobile radio relay user exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03218997 CN2648739Y (en) | 2003-05-30 | 2003-05-30 | Mobile radio relay user exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2648739Y true CN2648739Y (en) | 2004-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03218997 Expired - Fee Related CN2648739Y (en) | 2003-05-30 | 2003-05-30 | Mobile radio relay user exchanger |
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| CN (1) | CN2648739Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185981A (en) * | 2011-05-04 | 2011-09-14 | 中国移动通信集团广东有限公司东莞分公司 | Device and method for solving wireless voice relay number distribution |
| CN108174312A (en) * | 2018-02-07 | 2018-06-15 | 柳州达迪通信技术股份有限公司 | A kind of VDF intelligent crossovers device and its cross method |
-
2003
- 2003-05-30 CN CN 03218997 patent/CN2648739Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185981A (en) * | 2011-05-04 | 2011-09-14 | 中国移动通信集团广东有限公司东莞分公司 | Device and method for solving wireless voice relay number distribution |
| CN102185981B (en) * | 2011-05-04 | 2015-02-11 | 中国移动通信集团广东有限公司东莞分公司 | Device and method for solving wireless voice relay number distribution |
| CN108174312A (en) * | 2018-02-07 | 2018-06-15 | 柳州达迪通信技术股份有限公司 | A kind of VDF intelligent crossovers device and its cross method |
| CN108174312B (en) * | 2018-02-07 | 2023-12-15 | 柳州达迪通信技术股份有限公司 | VDF intelligent crossing device and crossing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |