CN107231604A - A kind of digital communication method and system - Google Patents
A kind of digital communication method and system Download PDFInfo
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- CN107231604A CN107231604A CN201710357875.0A CN201710357875A CN107231604A CN 107231604 A CN107231604 A CN 107231604A CN 201710357875 A CN201710357875 A CN 201710357875A CN 107231604 A CN107231604 A CN 107231604A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
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Abstract
The present invention relates to a kind of digital communication method and system, the digital communication system includes：Sender's mobile communication terminal, sender's digital communication multi-protocol conversion device, recipient's mobile communication terminal and recipient's digital communication multi-protocol conversion device.The present invention can realize at a distance, the communication without carrier network, while meeting the communication requirement of word, voice, picture and video.The communication requirement that the scenes such as bad snow mountain, forest, grassland, desert, oil field, mine meet people can be covered in operator's signal, in addition, when carrier infrastructure is by destroying, digital communication multi-protocol conversion device is compact portable, and the communication requirement of the disaster relief can be met rapidly.
Description
Technical field
The present invention relates to digital communicating field, and in particular to a kind of digital communication method and system.
Background technology
Current communication equipment has terminal device and the network equipment etc..Common terminal device includes mobile phone, PC, flat board
Etc., terminal typically has human-computer interaction interface.By taking our conventional mobile phones as an example, mobile phone has screen and a variety of APP for people to use,
Mobile phone also has the communication module of various standardization, and GPS module can obtain GPS position information；4G modules can connect operator
Base station obtains Internet resources；WiFi module can access AP, can also equally obtain Internet resources；Also bluetooth module,
Bluetooth earphone, Baffle Box of Bluetooth etc. can be connected.PC computers have Ethernet or wireless network card to access internet.
The equipment that the network equipment is responsible for protocol conversion and message forwarding, such as wireless access point AP, when our mobile phone
When accessing AP by WiFi, AP is responsible for the mobile phone to the air message between AP to be converted into AP to the network switch having report from a liner
Text.In addition, interchanger, router, repeater, base station, etc. be all the network equipment, the forwarding of main responsible information.
Current several main wireless communication technologys include：It is wireless mobile telecommunication technology, wireless LAN communication technology, individual
People's wireless LAN communication technology and intercom wireless communication technology, wireless mobile telecommunication technology include GSM, GPRS, 3G, 4G,
It is the mobile communication technology of current most main flow, mobile phone passes through intelligent acess core by the frequency of mandate, access base station, base station
Net.The distance of mobile phone and base station can reach more than ten kilometers.Mobile phone, base station, core network system, BOSS systems etc. need operation
Business builds and operations infrastructure, and user is also required to expense using network, and technical standard has standard consortium to dominate.WLAN
The communication technology, is called and makees WiFi technology, and in ISM band work, the extension accessed as wired network can solve nothing closely
Line communicates, and AP completes protocol conversion as gateway, and technical standard, which is formulated, the formulation of IEEE802.11 working groups.Individual radio local
Network Communication technology, in ISM band work, mainly using Bluetooth technology, realizes short-range be wirelessly transferred.Intercom radio communication
Technology, using common frequency band 433Mhz, realizes the radio communication of long range, but can only carry out voice communication, it is impossible to passed
Defeated text, picture, video.
But, every kind of wireless communication technology has the application scenarios of oneself, and difference can only be used for different application scene
Technology.Wireless mobile telecommunication technology can realize long range, large-scale radio communication, but have to be by Operator Core Network
Network, communication needs expense.Wireless LAN communication technology can only realize short-range radio communication, typically in family, job note
Position is used.Two people transmit substantial amounts of file in the case of no network (or being not desired to use network) can use bluetooth skill
Art.In the suburb without carrier network, oil field, mine, intercom wireless communication technology can meet voice communication, have the disadvantage
Can only voice communication, it is impossible to carry out the transmission of word, picture etc..
The content of the invention
It is an object of the invention to provide a kind of long range, the network without operator, while word, figure can be carried out
The digital communication method and system of the transmission such as piece, voice, to solve, existing wireless communications technology application scenarios are single to expire
The problem of sufficient user's communication requirement.
To achieve the above object, the invention discloses a kind of digital communication method, the digital communication method includes：Start
Digital communication client end AP P or digital communication client application plug-in unit；Pass through bluetooth connection to respective digital communication multi-protocols
Conversion equipment；Individual ID letters are carried out between mobile communication terminal and respective digital communication multi-protocol conversion device by bluetooth
The reception and transmission of breath or the communication information；Pass through Sub- between sender and the digital communication multi-protocol conversion device of recipient
GFSK communication modules carry out personal information broadcasting packet with Sub-G frequency ranges or communication information message sends and receives；With use number
Word communication protocol finds other side and communicated in the case of without carrier network.
Above-mentioned a kind of digital communication method disclosed by the invention, the use digital communication protocol is without carrier network
In the case of find other side process include：Neighbouring mobile communication terminal passes through digital communication client end AP P or digital communication visitor
Family end application plug-in sends and receives personal id information；The digital communication client end AP P or numeral of each mobile communication terminal are logical
The id information list that letter client application plug-in unit has the people near one is shown；With in the id information list of neighbouring people
A wherein side or set up correspondence in many ways and the communication information sent and received according to personal id information.
A kind of above-mentioned digital communication method disclosed by the invention, the neighbouring mobile communication terminal passes through digital communication visitor
The process that family end APP or digital communication client application plug-in unit send personal id information includes：Neighbouring mobile communication terminal leads to
Cross digital communication client end AP P or digital communication client application plug-in unit broadcasts oneself id information；Digital communication multiprotocol conversion
Device receives the personal id information of Bluetooth transmission for the mobile communication terminal broadcast being connected with oneself；Remove Bluetooth transmission individual ID
Bluetooth protocol coding head in information；Extract personal id information and personal information broadcast report is converted to by digital communication protocol
Text；Personal information broadcasting packet is released by Sub-G FSK communication modules in Sub-G frequency ranges.
A kind of above-mentioned digital communication method disclosed by the invention, the neighbouring mobile communication terminal passes through digital communication visitor
The process that family end APP or digital communication client application plug-in unit receive personal id information includes：Neighbouring digital communication multi-protocols
Conversion equipment receives personal information broadcasting packet；Extract personal id information and be packaged into Bluetooth format again；It is sent to and the numeral
The mobile communication terminal for the multi-protocol conversion device bluetooth connection that communicates；Mobile communication terminal digital communication client end AP P or
The id information list of people near being shown in digital communication client application plug-in unit.
Above-mentioned a kind of digital communication method disclosed by the invention, the use digital communication protocol is without carrier network
In the case of the process that is communicated include：When sender sets up correspondence with recipient, sender and recipient are added by AES
Close agreement obtains Traffic encryption key(TEK) and communication decrypting key, the Traffic encryption key(TEK) of described sender and the recipient respectively
Communication decrypting key key pair each other；Sender passes through the digital communication client end AP P of mobile communication terminal or digital communication
Client application plug-in unit editing interface is generated the communication information and the communication information is encrypted using Traffic encryption key(TEK)；Pass through number
Word communication customer end APP or digital communication client application plug-in unit are by communication information affix id information, and wherein id information includes
The id information of sender and the id information of recipient；The communication information for being attached with id information is sent to sender's by bluetooth
Digital communication multi-protocol conversion device；The digital communication multi-protocol conversion device of sender removes the communication information that Bluetooth transmission is come
In Bluetooth protocol coding head；The communication information is put into Sub-G FSK transmit queues；Judge in Sub-G FSK transmit queues
Whether to be sent communication information message is had；When there is no communication information message to be sent in Sub-GFSK transmit queues,
Judge communication channel RSSI value whether less than default Tidle threshold；When communication channel RSSI value is less than default Tidle threshold,
It is to be converted to communication information message after the communication information adds lead code and synchronization character by digital communication protocol；Communication information message
Sent by Sub-G FSK communication modules in Sub-G frequency ranges；The digital communication multi-protocol conversion device of recipient receives logical
Letter information message simultaneously extracts the communication information using communication decrypting key decryption；Decrypt the communication information extracted and be packaged into bluetooth
Form；The communication information for being packaged into Bluetooth format is sent to recipient's mobile communication terminal；Recipient's mobile communication terminal passes through
Recipient digital communication client end AP P or digital communication client application plug-in unit show the communication information and according to the ID of sender
Presentation of information goes out the sender of the communication information.
Above-mentioned a kind of digital communication method disclosed by the invention, the personal information being converted into by the digital communication protocol
Broadcasting packet and communication information message include synchronization character, 8 words of the lead code of 5 bytes, 2 bytes successively from front to back
The specific communication information that the purpose id information of section, 8 byte source id informations, the type of messages and Payload of 1 byte are carried,
Wherein, include in the source id information in the id information of sender, the purpose id information and include single recipient's
Id information broadcasts at least two kinds different bytes in special purpose id information, the id information of recipient, broadcasts special purpose
Id information has 8 identical bytes.
A kind of above-mentioned digital communication method disclosed by the invention, the type of message includes personal information broadcasting packet, text
Word communication information message, voice communication infomational message, communicating pictures infomational message, video communication infomational message, GPS position information
Message or sensor information message.
A kind of above-mentioned digital communication method disclosed by the invention, the digital communication client application plug-in download is attached to
Mobile communication terminal is directly built in the operating system of mobile communication terminal.
A kind of above-mentioned digital communication method disclosed by the invention, the personal id information passes through digital communication client end AP P
Or digital communication client application plug-in unit is registered to digital communications services device and generated.
A kind of above-mentioned digital communication method disclosed by the invention, the mobile communication terminal includes mobile phone, PC and flat board electricity
Brain.
The invention also discloses a kind of digital communication system, the digital communication system includes：Sender's mobile communication is whole
End, sender's digital communication multi-protocol conversion device, recipient's mobile communication terminal and recipient's digital communication multiprotocol conversion
Device, wherein, described sender mobile communication terminal and recipient's mobile communication terminal are respectively provided with digital communication client
APP or digital communication client application plug-in unit, described sender mobile communication terminal and recipient's mobile communication terminal lead to
Cross bluetooth and be respectively connecting to described sender digital communication multi-protocol conversion device and recipient's digital communication multi-protocols turn
Changing device, between sender's mobile communication terminal and sender's digital communication multi-protocol conversion device and recipient's movement is logical
Connecing for personal id information or the communication information is carried out by bluetooth between letter terminal and recipient's digital communication multi-protocol conversion device
Receive and send, pass through between sender's digital communication multi-protocol conversion device and recipient's digital communication multi-protocol conversion device
Sub-G FSK communication modules carry out sending and receiving for personal information broadcasting packet or communication information message with Sub-G frequency ranges, send out
The side's of sending mobile communication terminal and recipient's mobile communication terminal are sent out using digital communication protocol in the case of without carrier network
Existing other side is simultaneously communicated.
The invention has the advantages that：
The present invention can realize at a distance, the communication without carrier network, while meeting word, voice, picture and regarding
The communication requirement of frequency.The scenes such as bad snow mountain, forest, grassland, desert, oil field, mine can be covered in operator's signal to expire
The communication requirement of sufficient people, in addition, when carrier infrastructure is by destroying, digital communication multi-protocol conversion device is compact just
Take, the communication requirement of the disaster relief can be met rapidly.
Brief description of the drawings
Fig. 1 is a kind of MANET schematic diagram of digital communication system disclosed by the invention.
Fig. 2 is a kind of structure chart of digital communication system disclosed by the invention.
Fig. 3 is a kind of circuit diagram of the digital communication multi-protocol conversion device of digital communication system disclosed by the invention.
Fig. 4 is a kind of schematic flow sheet of digital communication method disclosed by the invention.
Fig. 5 is a kind of communication process schematic diagram of digital communication method disclosed by the invention.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
A kind of Fig. 1, digital communication system disclosed by the invention includes：Sender's mobile communication terminal 01, sender's numeral
Communicate multi-protocol conversion device 02, recipient's mobile communication terminal 03 and recipient's digital communication multi-protocol conversion device 04, its
In, sender's mobile communication terminal 01 and recipient's mobile communication terminal 03 are respectively provided with digital communication client end AP P or digital and led to
Believe client application plug-in unit, with reference to Fig. 2 and 3, sender's digital communication multi-protocol conversion device 02 and recipient's digital communication are more
Protocol conversion apparatus 04 includes：Central processing unit 05, power supply module 06, memory module 07, bluetooth module 08, Sub-G FSK
Communication module 09, locating module 10, sensor assembly 11, display screen 12 and audio-frequency module 13, central processing unit 05 respectively with confession
It is electric module 06, memory module 07, bluetooth module 08, Sub-G FSK communication modules 09, locating module 10, sensor assembly 11, aobvious
Display screen 12 and audio-frequency module 13 are connected, and central processing unit 05 is connected to memory module 07 and Sub- by Serial Peripheral Interface (SPI) respectively
Serial Peripheral Interface (SPI) in G FSK communication modules 09, bluetooth module 08 is connected with Bluetooth antenna 14, Sub-G FSK communication modules
09 is connected with Sub-GFSK communication antennas 15, and locating module 10 includes GPS locator and/or Big Dipper locator, sensor assembly
11 include baroceptor, acceleration transducer and gravity sensor, and power supply module 06 includes：Rechargeable battery 16 and charging are single
Member 17, rechargeable battery 16 is connected to central processing unit 05, and charhing unit 17 is connected on rechargeable battery 16, charhing unit 16
Provided with USB charging inlets 18.
Further, with reference to Fig. 3, Sub-G FSK communication modules 09 include first transceiver 19, second transceiver 20, hair
Control circuit 21 and front-end module 22 are sent, first transceiver 19 and second transceiver 20 are connected to center by Serial Peripheral Interface (SPI)
The transmission line TX of Serial Peripheral Interface (SPI) on processor 05, first transceiver 19 and second transceiver 20 is through sending controling circuit 21
After be connected to front-end module 22, sending controling circuit 21 is by being wired to central processing unit 05, first transceiver 19 and
The reception line TX of two transceivers 20 is connected directly to front-end module 22, is connected between the first transceiver 19 and front-end module 20
There are the first Sub-G FSK communication antennas 24 that first transceiver 19 is connected with power supply electric wire 23, front-end module and the second transmitting-receiving
2nd Sub-G FSK communication antennas 25 of device 20, the transmission line TX of second transceiver 20 is after sending controling circuit 22 with first
Shared one of transceiver 19 sends line TX.
With reference to Fig. 3, being assisted sender's digital communication multi-protocol conversion device 02 as described above and recipient's digital communication more
The view application method of conversion equipment 04 includes：Central processing unit 05, for management and dispatching memory module 07, bluetooth module 08, Sub-G
FSK communication modules 09, locating module 10, sensor assembly 11, display screen 12 and audio-frequency module 13；Power supply module 06, for straight
Connect to central processing unit 05 and power, and be respectively memory module 07, bluetooth module 08, Sub-G FSK by central processing unit 05
Communication module 09, locating module 10, sensor assembly 11, display screen 12 and audio-frequency module 13 are powered；Memory module 07, for reporting
The storage of the storage of literary information and system operation and upgraded version；Bluetooth module 08, for being connected to mobile communication terminal 03
By digital communication client end AP P or digital communication client application plug-in unit carry out personal id information or the communication information reception and
Send；Locating module 10, for obtaining position location, in communication process, reports mobile communication whole by bluetooth module 08
The digital communication client end AP P or digital communication client application plug-in unit at end 03, and/or pass through Sub-G FSK communication modules 09
Send；Sensor assembly 11, the information for obtaining user's surrounding enviroment, and mobile communication end is reported by bluetooth
The digital communication client end AP P or digital communication client application plug-in unit at end 03；Display screen 12, the work shape for display device
State and data message；Audio-frequency module 13, for sending voice prompt and supplying user to be conversed and communicated by Sub-G FSK
Module 09, which takes place frequently conversation voice, to be seen off；With Sub-G FSK communication modules 09, for the digital communication of long range, receive and send
The information that square digital communication multi-protocol conversion device 02 is sended over, the information that the bluetooth of mobile communication terminal 03 is transmitted and fixed
The information that position module 10, sensor assembly 11 and the power supply of audio-frequency module 13 are transmitted is sent.
Above-mentioned Sub-G FSK communication modules 09 using first transceiver 19 and second transceiver 20 as main transceiver and
Accessory transceiver, first transceiver 19 and second transceiver 20 enter row information transmission by respective transmission line TX respectively, the
One transceiver 19 and second transceiver 20 enter row information reception by respective reception line RX respectively, by sending controling circuit 22
First transceiver 19 and second transceiver 20 is controlled to be sent respectively by the respective transmission line TX information carried out, by front-end module
22 pairs of information from first transceiver 19 and second transceiver 20 are amplified.
With reference to Fig. 1, digital communication multi-protocol conversion device is used as mobile communication terminal (mobile phone, computer or tablet personal computer)
Accessory is, it is necessary to which mobile communication terminal installs digital communication client end AP P or digital communication client application plug-in unit.Digital communication visitor
Family end APP or digital communication client application plug-in management mobile communication terminal bluetooth equipment, find digital communication multi-protocols
Conversion equipment, sets up connection, so, mobile communication terminal can both send information by digital communication multi-protocol conversion device,
Can also receive information, when sending information, mobile communication terminal and digital communication multi-protocol conversion device are sender's movement
Communication terminal and sender's digital communication multi-protocol conversion device, during receive information, are assisted more mobile communication terminal and digital communication
It is recipient's mobile communication terminal and recipient's digital communication multi-protocol conversion device to discuss conversion equipment.Multiple mobile communication are whole
End forms digital communication system as described above by respective digital communication multi-protocol conversion device MANET respectively.
Digital communication multi-protocol conversion device is a multi-protocols, multi-radio equipment, 2.4G bluetooth can be believed
Breath, is changed by internal agreement, is converted into 433Mhz frequency range fsk signals and transfers out, and reaches transmission purpose at a distance, equally
The signals of the free UHF band receptions of 433Mhz can also be converted into Bluetooth information and be sent to mobile communication terminal.Mobile communication is whole
The digital communication client end AP P or digital communication client application plug-in unit combination digital communication multi-protocol conversion device at end, can be with
Realize remote word, voice, picture and video communication in the case of without carrier network.
With reference to Fig. 1, in a kind of above-mentioned digital communication system, sender's mobile communication terminal 01 and recipient's mobile communication are whole
End 03 is respectively connecting to sender's digital communication multi-protocol conversion device 02 by bluetooth and recipient's digital communication multi-protocols turn
Changing device 04, between sender's mobile communication terminal 01 and sender's digital communication multi-protocol conversion device 02 and recipient
Personal id information or logical is carried out by bluetooth between mobile communication terminal 03 and recipient's digital communication multi-protocol conversion device 04
The reception and transmission of letter information, in sender's digital communication multi-protocol conversion device 02 and recipient's digital communication multiprotocol conversion
Personal information broadcasting packet or communication information report are carried out with Sub-G frequency ranges by Sub-G FSK communication modules 09 between device 04
Literary sends and receives, and sender's mobile communication terminal 01 and recipient's mobile communication terminal 03 use digital communication protocol in nothing
Other side is found in the case of carrier network and is communicated.
With reference to Fig. 4, the digital communication method of digital communication system disclosed above includes：Sender's mobile communication terminal 01
Start respective digital communication client end AP P or digital communication client application plug-in unit with recipient's mobile communication terminal 03；It is logical
Bluetooth connection is crossed to respective digital communication multi-protocol conversion device；It is logical in mobile communication terminal and respective numeral by bluetooth
The reception and transmission of personal id information or the communication information are carried out between letter multi-protocol conversion device；Sender and the numeral of recipient
Communicate multi-protocol conversion device between by Sub-G FSK communication modules with Sub-G frequency ranges carry out personal information broadcasting packet or
Communication information message sends and receives；Other side is found in the case of without carrier network with use digital communication protocol and is carried out
Communication.Neighbouring mobile communication terminal is sent and connect by digital communication client end AP P or digital communication client application plug-in unit
Receive personal id information；The digital communication client end AP P or digital communication client application plug-in unit of each mobile communication terminal have
The id information list of people near one is shown；With the wherein side in the id information list of neighbouring people or multi-party foundation
Correspondence simultaneously sends and receives the communication information according to personal id information.
Specifically, neighbouring mobile communication terminal is inserted by digital communication client end AP P or digital communication client application
Part broadcasts oneself id information；Digital communication multi-protocol conversion device receives the indigo plant for the mobile communication terminal broadcast being connected with oneself
The personal id information of tooth transmission；Remove the Bluetooth protocol coding head in the personal id information of Bluetooth transmission；Extract personal id information and lead to
Cross digital communication protocol and be converted to personal information broadcasting packet；Personal information broadcasting packet is existed by Sub-G FSK communication modules
Sub-G frequency ranges are released；So, neighbouring mobile communication terminal passes through digital communication client end AP P or digital communication client
Application plug-in is held to send personal id information.Neighbouring digital communication multi-protocol conversion device receives personal information broadcasting packet；Carry
Take out personal id information and be packaged into Bluetooth format again；It is sent to the movement with the digital communication multi-protocol conversion device bluetooth connection
Communication terminal；Shown in the digital communication client end AP P or digital communication client application plug-in unit of mobile communication terminal attached
The id information list of near people；So, neighbouring mobile communication terminal passes through digital communication client end AP P or digital communication client
Application plug-in is held to receive personal id information.
In addition, with reference to Figure 4 and 5, the process communicated using digital communication protocol in the case of without carrier network
Including：When sender sets up correspondence with recipient, sender and recipient obtain communication by AES encryption agreement and added respectively
The communication decrypting key of key and communication decrypting key, the Traffic encryption key(TEK) of described sender and the recipient are close each other
Key pair；Digital communication client end AP P or digital communication client application plug-in unit editor circle that sender passes through mobile communication terminal
Face is generated the communication information and the communication information is encrypted using Traffic encryption key(TEK)；Pass through digital communication client end AP P or number
Communication information affix id information, wherein id information are included id information and the reception of sender by word communication customer end application plug-in
The id information of side；The digital communication multiprotocol conversion that the communication information for being attached with id information is sent to sender is filled by bluetooth
Put；The digital communication multi-protocol conversion device of sender removes the Bluetooth protocol coding head in the communication information that Bluetooth transmission is come；
The communication information is put into Sub-G FSK transmit queues；Judge whether there is communication letter to be sent in Sub-G FSK transmit queues
Cease message；When there is no communication information message to be sent in Sub-G FSK transmit queues, judge that communication channel RSSI value is
It is no to be less than default Tidle threshold；It is logical by digital communication protocol when communication channel RSSI value is less than default Tidle threshold
Letter information is converted to communication information message after adding lead code and synchronization character；Communication information message passes through Sub-GFSK communication modules
Sent in Sub-G frequency ranges；The digital communication multi-protocol conversion device of recipient receives communication information message and utilizes communication
Decryption key decryption extracts the communication information；Decrypt the communication information extracted and be packaged into Bluetooth format；It is packaged into Bluetooth format
The communication information be sent to recipient's mobile communication terminal；Recipient's mobile communication terminal passes through recipient's digital communication client
APP or digital communication client application plug-in unit show the communication information and show the communication information according to the id information of sender
Sender.
With reference to table 1 below, the personal information broadcasting packet and communication information report being converted into by the digital communication protocol
Text includes purpose id information, 8 words of the lead code of 5 bytes, the synchronization character of 2 bytes, 8 bytes successively from front to back
The specific communication information that section source id information, the type of message and Payload of 1 byte are carried, wherein, wrapped in the source id information
Include the id information of single recipient in id information containing sender, the purpose id information or broadcast special purpose ID
At least two kinds different bytes in information, the id information of recipient, broadcasting special purpose id information has 8 identical words
Section.Type of message includes personal information broadcasting packet, text communication infomational message, voice communication infomational message, communicating pictures letter
Cease message, video communication infomational message, GPS position information message or sensor information message.
Table 1：Personal information broadcasting packet and communication information sequence of message composition table
| 5 | 2 | 8 | 8 | 1 | …… |
| Lead code | Synchronization character | Purpose id information | Source id information | Type of message | payload |
In addition, digital communication client application plug-in download as described above is attached to mobile communication terminal or directly built-in
In the operating system of mobile communication terminal.The personal id information is by digital communication client end AP P or digital communication visitor
Family end application plug-in is registered to digital communications services device and generated, and Payload when type of message is personal information broadcasting packet takes
The specific communication information of band includes personal log-on message, such as pet name.
Present invention uses or the implicit basic concepts used in digital communication, they are respectively：
Sub-G FSK communication modules：The module communicated using FSK modulation mode in 1Ghz implemented below, below 1Ghz's
Communications band, referred to as Sub-G communicate, and feature is long transmission distance, mainly include 150-151Mhz frequency ranges, 400-480Mhz frequencies
Section, 868-925Mhz frequency ranges, each state has free frequency band to use, such as conventional intercom is operated in 433Mhz frequency ranges,
Sub-G FSK, refer to below 1Ghz FSK (frequency modulation technology) modulation technique；
Sub-G frequency ranges：Below 1Ghz communications band, referred to as Sub-G frequency ranges, feature is long transmission distance, is mainly included
150-151Mhz frequency ranges, 400-480Mhz frequency ranges, 868-925Mhz frequency ranges, each state has free frequency band to use, such as commonly uses
Intercom be operated in 433Mhz frequency ranges；
AES (Advanced Encryption Standard) cryptographic protocol：Advanced Encryption Standard, in the world disclosed one
Plant encryption method and standard；
RSSI (Received Signal Strength Indication) value：The signal strength indication value of reception；
Payload：Message content payload, the effective information of communications；
FSK (Frequency-shift keying) signal：The signal that shift keying modulation mode is generated.
Although above with general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (10)
1. a kind of digital communication method, it is characterised in that the digital communication method includes：
Start digital communication client end AP P or digital communication client application plug-in unit；
Pass through bluetooth connection to respective digital communication multi-protocol conversion device；
Carried out by bluetooth between mobile communication terminal and respective digital communication multi-protocol conversion device personal id information or
The reception and transmission of the communication information；
By Sub-G FSK communication modules with Sub-G frequencies between sender and the digital communication multi-protocol conversion device of recipient
Duan Jinhang personal information broadcasting packet or communication information message send and receive；With
Other side is had found in the case of without carrier network using digital communication protocol and communicated.
2. a kind of digital communication method as claimed in claim 1, it is characterised in that the use digital communication protocol is without fortune
Find that the process of other side includes in the case of battalion's business's network：
Neighbouring mobile communication terminal is sent and received by digital communication client end AP P or digital communication client application plug-in unit
Personal id information；
The digital communication client end AP P or digital communication client application plug-in unit of each mobile communication terminal have near one
The id information list of people is shown；
With the wherein side in the id information list of neighbouring people or multi-party setting up correspondence and being sent according to personal id information
With the reception communication information.
3. a kind of digital communication method as claimed in claim 2, it is characterised in that the mobile communication terminal near described passes through
The process that digital communication client end AP P or digital communication client application plug-in unit send personal id information includes：
Neighbouring mobile communication terminal broadcasts oneself ID by digital communication client end AP P or digital communication client application plug-in unit
Information；
Digital communication multi-protocol conversion device receives the Bluetooth transmission individual ID for the mobile communication terminal broadcast being connected with oneself
Information；
Remove the Bluetooth protocol coding head in the personal id information of Bluetooth transmission；
Extract personal id information and personal information broadcasting packet is converted to by digital communication protocol；
Personal information broadcasting packet is released by Sub-G FSK communication modules in Sub-G frequency ranges.
4. a kind of digital communication method as claimed in claim 2, it is characterised in that the mobile communication terminal near described passes through
The process that digital communication client end AP P or digital communication client application plug-in unit receive personal id information includes：
Neighbouring digital communication multi-protocol conversion device receives personal information broadcasting packet；
Extract personal id information and be packaged into Bluetooth format again；
It is sent to the mobile communication terminal with the digital communication multi-protocol conversion device bluetooth connection；
People near being shown in the digital communication client end AP P or digital communication client application plug-in unit of mobile communication terminal
Id information list.
5. a kind of digital communication method as claimed in claim 1, it is characterised in that the use digital communication protocol is without fortune
The process communicated in the case of battalion's business's network includes：
When sender sets up correspondence with recipient, sender and recipient obtain communication by AES encryption agreement and added respectively
The communication decrypting key of key and communication decrypting key, the Traffic encryption key(TEK) of described sender and the recipient are close each other
Key pair；
Digital communication client end AP P or digital communication client application plug-in unit editing interface that sender passes through mobile communication terminal
Simultaneously the communication information is encrypted using Traffic encryption key(TEK) for the generation communication information；
By digital communication client end AP P or digital communication client application plug-in unit by communication information affix id information, wherein
Id information includes the id information of sender and the id information of recipient；
The communication information for being attached with id information is sent to the digital communication multi-protocol conversion device of sender by bluetooth；
The digital communication multi-protocol conversion device of sender removes the Bluetooth protocol coding head in the communication information that Bluetooth transmission is come；
The communication information is put into Sub-G FSK transmit queues；
Judge whether there is communication information message to be sent in Sub-G FSK transmit queues；
When there is no communication information message to be sent in Sub-G FSK transmit queues, whether communication channel RSSI value is judged
Less than default Tidle threshold；
It is that the communication information adds lead code by digital communication protocol when communication channel RSSI value is less than default Tidle threshold
With communication information message is converted to after synchronization character；
Communication information message is sent by Sub-G FSK communication modules in Sub-G frequency ranges；
The digital communication multi-protocol conversion device of recipient is received communication information message and decrypted using communication decrypting key and extracted
Go out the communication information；
Decrypt the communication information extracted and be packaged into Bluetooth format；
The communication information for being packaged into Bluetooth format is sent to recipient's mobile communication terminal；
Recipient's mobile communication terminal is shown by recipient digital communication client end AP P or digital communication client application plug-in unit
Go out the communication information and the sender of the communication information is shown according to the id information of sender.
6. a kind of digital communication method as described in claim 3 or 5, it is characterised in that turned by the digital communication protocol
The personal information broadcasting packet and communication information message changed into includes the lead code of 5 bytes, 2 bytes successively from front to back
Synchronization character, the purpose id information of 8 bytes, 8 byte source id informations, the type of messages and Payload of 1 byte carry
The specific communication information, wherein, include in the source id information in the id information of sender, the purpose id information and include list
The id information of only recipient broadcasts at least two kinds different bytes in special purpose id information, the id information of recipient,
Special purpose id information is broadcasted with 8 identical bytes.
7. a kind of digital communication method as claimed in claim 6, it is characterised in that it is wide that the type of message includes personal information
Report text, text communication infomational message, voice communication infomational message, communicating pictures infomational message, video communication infomational message,
GPS position information message or sensor information message.
8. a kind of digital communication method as claimed in claim 1, it is characterised in that the digital communication client application plug-in unit
Download is attached to mobile communication terminal or is directly built in the operating system of mobile communication terminal.
9. a kind of digital communication method as claimed in claim 1, it is characterised in that the personal id information passes through digital communication
Client end AP P or digital communication client application plug-in unit are registered to digital communications services device to be generated.
10. a kind of digital communication system, it is characterised in that the digital communication system includes：Sender's mobile communication terminal, hair
The side's of sending digital communication multi-protocol conversion device, recipient's mobile communication terminal and recipient's digital communication multi-protocol conversion device,
Wherein, described sender mobile communication terminal and recipient's mobile communication terminal be respectively provided with digital communication client end AP P or
Digital communication client application plug-in unit, described sender mobile communication terminal and recipient's mobile communication terminal pass through bluetooth
Described sender digital communication multi-protocol conversion device and recipient's digital communication multi-protocol conversion device are respectively connecting to,
Between sender's mobile communication terminal and sender's digital communication multi-protocol conversion device and recipient's mobile communication terminal
Personal id information or reception and the hair of the communication information are carried out by bluetooth between recipient's digital communication multi-protocol conversion device
Send, Sub-G is passed through between sender's digital communication multi-protocol conversion device and recipient's digital communication multi-protocol conversion device
FSK communication modules carry out sending and receiving for personal information broadcasting packet or communication information message with Sub-G frequency ranges, and sender moves
Mobile communication terminal and recipient's mobile communication terminal find other side using digital communication protocol in the case of without carrier network
And communicated.
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| CN107231604B (en) | 2021-01-29 |
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