CN207588845U - Call adapting system - Google Patents
Call adapting system Download PDFInfo
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- CN207588845U CN207588845U CN201721617445.XU CN201721617445U CN207588845U CN 207588845 U CN207588845 U CN 207588845U CN 201721617445 U CN201721617445 U CN 201721617445U CN 207588845 U CN207588845 U CN 207588845U
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Abstract
The utility model discloses a kind of call adapting systems, system is set there are two radio-frequency module and a control module, two radio-frequency modules are the first radio-frequency module and the second radio-frequency module, SMA interfaces are respectively equipped on two radio-frequency modules, by the external Multi-standard multi-band omnidirectional antenna of SMA interfaces, communicate respectively with calling party and callee；Control module is equipped with FPGA, STM32 microcontroller, power connector, and the PCM signal of two radio-frequency modules is communicatively coupled respectively with FPGA；The UART signal of two radio-frequency modules is connect respectively with STM32 single chip communications；FPGA is connect with STM32 single chip communications；System connects host computer by USB port；Mobile power built in system and the power connector of control module connect.This system is small, is convenient for carrying；China Mobile, unicom, telecommunications GSM/WCDMA/LTE the whole networks is supported to lead to.
Description
Technical field
The utility model is related to mobile communication switching techniques, and in particular to a kind of call adapting system, the system are suitable for
The small-sized unipath switching scene of no fixed transfer rule.
Background technology
Based on the communication switching system of communication module currently without similar product, traditional call adapter coupling servers are
Large scale equipment because volume is larger, carries very inconvenient.
Invention content
In view of the problems existing in the prior art and defect, the utility model provide a kind of call adapting system, which is
One kind realizes the communication switching system that number is hidden and designed to realize the protection to " internal number ".
The technical scheme adopted by the utility model is that：A kind of call adapting system, it is characterised in that：The system is equipped with two
A radio-frequency module and a control module, two radio-frequency modules are the first radio-frequency module and the second radio-frequency module, two radio frequency moulds
SMA interfaces are respectively equipped on block, by the external Multi-standard multi-band omnidirectional antenna of SMA interfaces, respectively with calling party and callee
It communicates；Control module is equipped with FPGA, STM32 microcontroller, power connector, the PCM signal difference of two radio-frequency modules
It is communicatively coupled with FPGA；The UART signal of two radio-frequency modules is connect respectively with STM32 single chip communications；FPGA with
STM32 single chip communications connect；The system connects host computer by USB port；Mobile power built in system and control module
Power connector connects.
Two radio-frequency modules described in the utility model be respectively equipped with can power down plug SIM card.
Compared to existing equipment, the utility model has the following advantages：
1st, it is small, it is convenient for carrying；
2nd, built-in mobile power power supply, charging are convenient；
3rd, China Mobile, unicom, telecommunications GSM/WCDMA/LTE the whole networks is supported to lead to；
4th, antenna gain is high, and laser propagation effect is good.
Utility model works principle：During external the first radio-frequency module of number call, FPGA is by the PCM of the first radio-frequency module
Signal is connected to the second radio-frequency module, microcontroller（STM32）The second radio-frequency module is controlled to call intercom number, so as to fulfill to inside
Number protection and hide.Outside can not perceive direct correspondence between external number and intercom number, can only perceive
The external number communication between the first radio-frequency module.And device end can also may be used with internal number geographically apart from far
Content of Communication to be prevented to be monitored control.It can realize calling number only to the first radio frequency mould by setting different inside number
Block is made a phone call can be with different inside signal communications.
Description of the drawings
Fig. 1 is Tthe utility model system catenation principle block diagram；
Fig. 2 is Tthe utility model system work flow diagram.
Specific embodiment
With reference to Fig. 1, this system is set there are two radio-frequency module and a control module, and two radio-frequency modules are the first radio frequency mould
1 and second radio-frequency module 2 of block is respectively equipped with SMA interfaces on two radio-frequency modules, passes through the external Multi-standard multi-band of SMA interfaces
Omnidirectional antenna 3 communicates respectively with calling party 4 and callee 5；Control module 6 is equipped with FPGA, STM32 microcontroller, power supply
Connector, the PCM signal of two radio-frequency modules are communicatively coupled respectively with FPGA；The UART signal difference of two radio-frequency modules
It is connect with STM32 single chip communications；FPGA is connect with STM32 single chip communications；System connects host computer by USB port；System
Built-in mobile power 7 is connect with the power connector of control module 6.
Since equipment needs to meet portability requirements, therefore built-in mobile power is used to provide 5V power supplies for equipment.Radio frequency mould
Block by the external Multi-standard multi-band omnidirectional antenna of SMA interfaces, radio-frequency module can power down plug SIM card, the fortune that SIM card is supported
Battalion quotient is movement, telecommunications, unicom.PCM communication between first radio-frequency module 1 and the second radio-frequency module 2 is by control module
FPGA transfers, the STM32 of control module（ARM）Microcontroller is responsible for that the communications status of each radio-frequency module is controlled and supervised
It surveys.
Control module provides 5V power supplies by built-in mobile power, and radio-frequency module passes through the power connector in control module
Obtain the power supply of 3.3V.All components are assemblied in Portable machine box.There are Micro-USB interfaces can give built-in movement for cabinet
Power source charges.Host computer sends control command, and reception state by standard USB interface to the STM32 microcontrollers of control module
Monitoring signals.Two radio-frequency modules carry RF transceiver, realize the conversion between radiofrequency signal and digital signal.
With reference to Fig. 2, the workflow that this system carries out call switching has following steps：
（1）, calling number Inbound Calls；
（2）, the first radio-frequency module telephone number is notified into microcontroller；
（3）, microcontroller control the second radio-frequency module calling intercom number；
（4）, the second radio-frequency module calling intercom number；
（5）, internal number connect, the second radio-frequency module notice microcontroller has been turned on；
（6）, microcontroller calling number is sent to FPGA；
（7）, FPGA calling number is sent to the second radio-frequency module；
（8）, FPGA notice microcontroller number be sent completely；
（9）, microcontroller control the first radio-frequency module connect phone；
（10）, the first radio-frequency module voice signal is connected to FPGA；
（11）, FPGA voice data is sent to the second radio-frequency module；
So far, calling party can connect voice with callee, converse.
Claims (2)
1. a kind of call adapting system, it is characterised in that：The system is set there are two radio-frequency module and a control module, two
Radio-frequency module is the first radio-frequency module（1）With the second radio-frequency module（2）, SMA interfaces are respectively equipped on two radio-frequency modules, are passed through
The external Multi-standard multi-band omnidirectional antenna of SMA interfaces（3）, respectively with calling party（4）And callee（5）It communicates；Control mould
Block（6）FPGA, STM32 microcontroller, power connector are equipped with, the PCM signal of two radio-frequency modules is led to respectively with FPGA
Letter connection；The UART signal of two radio-frequency modules is connect respectively with STM32 single chip communications；FPGA and STM32 single chip communications
Connection；The system connects host computer by USB port；Mobile power built in system（7）With control module（6）Power connector
Connection.
2. call adapting system according to claim 1, it is characterised in that：Two radio-frequency modules be respectively equipped with can power down insert
The SIM card pulled out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721617445.XU CN207588845U (en) | 2017-11-28 | 2017-11-28 | Call adapting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721617445.XU CN207588845U (en) | 2017-11-28 | 2017-11-28 | Call adapting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207588845U true CN207588845U (en) | 2018-07-06 |
Family
ID=62733935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721617445.XU Active CN207588845U (en) | 2017-11-28 | 2017-11-28 | Call adapting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207588845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769792A (en) * | 2017-11-28 | 2018-03-06 | 天津光电通信技术有限公司 | One kind call adapting system |
-
2017
- 2017-11-28 CN CN201721617445.XU patent/CN207588845U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769792A (en) * | 2017-11-28 | 2018-03-06 | 天津光电通信技术有限公司 | One kind call adapting system |
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