CN208987187U - A kind of implicit transfer platform of portable phone based on SOC chip - Google Patents

Abstract

The utility model relates to a kind of implicit transfer platforms of the portable phone based on SOC chip, it is made of radio-frequency module I, radio-frequency module II, radio-frequency module III, radio-frequency module IV 4, fpga chip, main control chip, mobile power source and PC machine, SIM card built in each radio-frequency module.Main control chip is connect with radio-frequency module I, radio-frequency module II, radio-frequency module III, radio-frequency module IV, fpga chip and PC machine by UART interface respectively, and mobile power source is radio-frequency module I, radio-frequency module II, radio-frequency module III, radio-frequency module IV, fpga chip and main control chip provide power supply.The utility model compact, built-in mobile power source have high portability and concealment, are applicable to the special dimension of hiding talking both sides' identity.

Description

A kind of implicit transfer platform of portable phone based on SOC chip

Technical field

The utility model relates to a kind of implicit transfer platforms of the portable phone based on SOC chip, for needing to call Person both sides carry out in the hiding special dimension of identity, by radio-frequency module to the transfer control of both call sides and PCM speech and The transmission of DTMF dual-tone multifrequency realizes the indirect implicit call of both call sides, implicitly sends short messages and the shape of operator, signal strength The function of state information inquiry.

Background technique

Firstly, current major part telephone switching system is by network implementations, its dialog context can all expose in this way In internet, it is not suitable for some places for needing implicitly to converse, if the both call sides identity exposure in special dimension The personal safety that may result in both sides receives threat, or provides condition of crime to some hostile elements or criminal.Secondly, Off line and the telephone switching system realized based on SOC generally be directed between the fixed base of one or multi-section and mobile phone, it is logical It crosses simulant electronic switch etc. and realizes that exchange turns the function of extension set or the call forwarding function of mobile phone.Such system is generally not It is inconvenient for use in special dimension with portability and concealment.Turn in addition, although these systems of current area realize phone Connection function, but still the direct connection of both call sides can be inquired according to message registration, not to the identity of both call sides into Row is hidden.

Call forwarding design currently for the implicit call scene of special dimension is less, mutual typically without that can not depend on Networking realizes both call sides identity protection by establishing call indirectly in real time by cutting off the direct connection of both call sides Platform Designing.

Summary of the invention

Call forwarding design in view of the implicit call scene currently for special dimension is less, typically without can disobey Rely internet, by cutting off the direct connection of both call sides, realizes that both call sides identity is protected by establishing call indirectly in real time The platform of shield, for the demand of this special applications, it is hidden that the utility model provides a kind of portable phone based on SOC chip Formula transfer platform, the utility model carries out call twice by radio-frequency module and transfers, and realizes incoming number DTMF by FPGA The transmission of dual-tone multifrequency and the indirect communication of both call sides PCM speech, realize the real time phone call of both call sides, simultaneously as Double-talk conceals the direct connection of both call sides by realizing in radio-frequency module then indirectly, so as to realize To the identity protection of both call sides.

To achieve the above object, the specific technical solution of use is the utility model: a kind of based on the portable of SOC chip The implicit transfer platform of phone, it is characterised in that: the platform is by radio-frequency module I, radio-frequency module II, radio-frequency module III, radio frequency Module IV 4, fpga chip, main control chip, mobile power source and PC machine composition, SIM card built in each radio-frequency module；

The main control chip respectively with radio-frequency module I, radio-frequency module II, radio-frequency module III, radio-frequency module IV, fpga chip And PC machine by UART interface connect, mobile power source be radio-frequency module I, radio-frequency module II, radio-frequency module III, radio-frequency module IV, Fpga chip and main control chip provide power supply；

The model STM32 of main control chip；

Radio-frequency module I, radio-frequency module II, radio-frequency module III and radio-frequency module IV model be SIM7600；

The model Xilinx Virtex-7 of fpga chip.

The beneficial effects of the utility model are: the utility model is the special call field for the person's identity that needs hiding talking Scape design, the portable implicit call forwarding platform of common knapsack can be packed into, can by SOC chip to radio-frequency module and The control of fpga chip has by the transmission of DTMF dual-tone multifrequency and PCM speech and establishes the real-time implicit logical of both sides indirectly Words, implicit transmitting-receiving short message and operator, signal strength state information searching function.

Phone dial-out may be implemented and directly contacting for those who answer is hiding, understand the premise of other side's identity in both call sides Under, caller's identity is externally protected, achievees the purpose that implicit safety call.

The utility model not only realizes above functions, and its compact, built-in mobile power source, has high portability and hidden Covering property is applicable to the special dimension of hiding talking both sides' identity.

The utility model realizes main greatly by the most of countries and regions' movement in No. imsi progress whole world, connection, telecommunications three The identification of operator and related operators is flowed, and the short message protocol under three kinds of standard networks is parsed, is realized conventional short The transmitting-receiving of letter and the slitting of long SMS receive simultaneously tiled display and storage.

The utility model has high operability, scalability and robustness, use value with higher.And exist The ground such as Zhuhai, Shenzhen carried out the multiple business test of the special SIM card of the ground SIM such as Hong Kong, Macao, and test effect is good, can be with It is promoted the use of within the allowable range.

Detailed description of the invention

Fig. 1 is the hardware system block diagram of the utility model.

Specific embodiment

A kind of implicit transfer platform of portable phone based on SOC chip as shown in Figure 1, platform is by radio-frequency module I, radio frequency mould Block II, radio-frequency module III, radio-frequency module IV 4, fpga chip, main control chip, mobile power source and PC machine composition, each radio-frequency module Built-in SIM card.

Main control chip respectively with radio-frequency module I, radio-frequency module II, radio-frequency module III, radio-frequency module IV, fpga chip and PC Machine is connected by UART interface, and mobile power source is radio-frequency module I, radio-frequency module II, radio-frequency module III, radio-frequency module IV, FPGA Chip and main control chip provide power supply.

The model STM32 of main control chip.

Radio-frequency module I, radio-frequency module II, radio-frequency module III and radio-frequency module IV model be SIM7600.

The model Xilinx Virtex-7 of fpga chip.

Working principle is as follows: it is adjacent that main control chip passes through any two in 4 UART serial ports 4 radio-frequency modules of control respectively Radio-frequency module, such as radio-frequency module I and radio-frequency module II or radio-frequency module III and radio-frequency module IV, two not controlled radio frequencies Module is spare radio-frequency module.

In addition main control chip is connect by UART serial ports with fpga chip, control telephone number DTMF dual-tone multifrequency and PCM Tone Via.

Last main control chip is connect with PC machine by UART serial ports, and PC machine can carry out status inquiry and short message receiving-transmitting, look into Read control.Mobile power source built in equipment is whole equipment power supply, guarantees its portability and concealment.

Illustrate the working principle of the utility model by taking radio-frequency module I and radio-frequency module II as an example below.

Preparation before use: needing to know in advance by the phone number of SIM card in radio-frequency module I to be used and The practical phone number of call recipient is stored by PC machine into equipment.The radio-frequency antenna for installing equipment simultaneously, presses power supply Switch, then openable PC machine carries out the inquiry of site signal strength, finds the signal for having basic call, short message condition So that subsequent phone and short message operate in place of intensity.

Implicit call forwarding working principle:

Promoter's first of call puts through the phone number of radio-frequency module I, and main control chip receives incoming call at this time, passes through communication Protocol analysis, the telephone number for extracting first are sent to FPGA and are put through the number of call recipient's second using radio-frequency module II.Second After connecting phone, main control chip controls FPGA and first transmits DTMF dual-tone multifrequency to second, and Party B is known by ancillary equipment Not Chu first number to confirm identity, end of transmission, then main control chip control radio-frequency module I connects the phone of first.At this point, entire Talking link is first à radio-frequency module I à radio-frequency module II à second, establishes the real-time biography of PCM speech between first and second by FPGA It is defeated, to indirectly set up implicit call between the two, it can be good at hiding first and second direct connection, protect both sides' body Part.

During the first and second calls, if the phone for thering is third party third to access radio-frequency module I or radio-frequency module II, master control Chip can directly be hung up, and guarantee that first and second normal talking is not interrupted.Until first or second one side actively hang up the telephone, main control chip It can control and hang up another party's phone, so far, complete one time first and second implicit call switching.

Implicit short message forwarding capability working principle: similar with implicit call forwarding principle, short message promoter's first sends out information Radio-frequency module I is given, main control chip is parsed after receiving information according to the agreement for receiving short message under different standards, to obtain The telephone number of sender, the length of information and content are taken, then will be in the information of the telephone number of information receiver's second and first Hold and converted according to the agreement for sending information, and recipient's second is sent to by radio-frequency module II.If information is too long, need Slitting reception is carried out according to ultralong short message agreement, sorts and splices in order, slitting is then carried out by radio-frequency module II again and is turned Hair.This process also conceals the direct connection of the first and second two people's short messages, protects both sides' identity.

In addition, being all to the signal strength of 4 radio-frequency modules, mobile phone operators, short message receiving-transmitting status inquiry by PC machine Main control chip sends inquiry instruction to radio-frequency module to realize.

Claims (1)

1. a kind of implicit transfer platform of portable phone based on SOC chip, it is characterised in that: the platform is by radio-frequency module I, radio-frequency module II, radio-frequency module III, radio-frequency module IV 4, fpga chip, main control chip, mobile power source and PC machine composition, each SIM card built in radio-frequency module；

The main control chip respectively with radio-frequency module I, radio-frequency module II, radio-frequency module III, radio-frequency module IV, fpga chip and PC Machine is connected by UART interface, and mobile power source is radio-frequency module I, radio-frequency module II, radio-frequency module III, radio-frequency module IV, FPGA Chip and main control chip provide power supply；

The model STM32 of main control chip；

Radio-frequency module I, radio-frequency module II, radio-frequency module III and radio-frequency module IV model be SIM7600；

The model Xilinx Virtex-7 of fpga chip.