CN106060801A - Data communication method, device and system based on Wi-Fi device - Google Patents
Data communication method, device and system based on Wi-Fi device Download PDFInfo
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- 238000004891 communication Methods 0.000 title claims abstract description 19
- 239000000523 sample Substances 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000011084 recovery Methods 0.000 claims description 4
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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Abstract
The present invention discloses a data communication method, device and system based on a Wi-Fi device, wherein the method comprises the steps of determining the data length of the target data; according to the data length, dividing the target data into N probe request packets according to a predetermined rule; sending the N probe request packets by a predetermined Wi-Fi frequency band, so that a data receiving device obtains the target data via the predetermined Wi-Fi frequency band. Therefore, according to the embodiment, by dividing the target data into the plurality of probe request packets, and sending the probe request packets via the predetermined Wi-Fi frequency band, the data can be sent to the devices outside a Wi-Fi network on the condition of not influencing the current Wi-Fi network connection of a data sending device, thereby increasing the conveniences that users send data to the outer network devices.
Description
Technical field
The present invention relates to communication technical field, more particularly, it relates to a kind of data communication side based on Wi-Fi equipment
Method, equipment and system.
Background technology
Wi-Fi wireless communication technique has been obtained for application widely at computer, smart mobile phone and panel computer, with
The progressively development of technology of Internet of things, various types of embedded computer systems, such as sensor, toy, armarium etc., open
Begin to use Wi-Fi technology to realize wireless network communication and linking Internet.Wi-Fi network uses shares the network media, only
The equipment having same network name and data cipher mode can communicate with one another.
But people the most usually need the equipment transfering data outside Wi-Fi network.Such as, current to not adding
The equipment of Wi-Fi network sends mesh information, enables them to add network.Data in directly being netted by normal Wi-Fi
Transmission cannot realize.One is, the data in major part Wi-Fi net are encryptions, there is no the net external equipment of key without
Method normally resolves.Secondly, the transmission of normal Wi-Fi packet is transmitted according to address, and the equipment outside network can not obtain
Effective address, so packet can not be correctly delivered to these net external equipment.
Due to the existence of the problems referred to above, industry realizes information by some compromise means and transmits.Such as: disconnect current
Wi-Fi network, and needs the equipment networking of communication, after data transmission, again recovers original Wi-Fi network.This method
The most loaded down with trivial details, and current normal network data transmission can be made to interrupt completely；Increase other means of communications, such as bluetooth, reality
Existing data pass.This method considerably increases the cost of equipment.
Therefore, how to realize between Wi-Fi equipment under conditions of not building network, the communication carrying out data is this area
The problem that technical staff needs to solve.
Summary of the invention
It is an object of the invention to provide a kind of data communications method based on Wi-Fi equipment, equipment and system, to realize
Between Wi-Fi equipment under conditions of not building network, carry out the communication of data.
For achieving the above object, following technical scheme is embodiments provided:
A kind of data transmission method for uplink based on Wi-Fi equipment, including:
Determine the data length of target data；
According to described data length, described target data is divided into N number of probe request bag according to pre-defined rule；Its
In, N is positive integer；
Described N number of probe request bag is transmitted by predetermined Wi-Fi frequency range, so that data receiver leads to
Cross described predetermined Wi-Fi frequency range and obtain described target data.
Wherein, the generation method of described target data includes:
Initial data is encrypted by predetermined cryptographic algorithm, generates encryption data；
The encryption data of hex form is changed according to pre-defined rule, generates the described target data of data form.
Wherein, the described encryption data by hex form is changed according to pre-defined rule, generates the described mesh of data form
Mark data, including:
It is that length is grouped by every 7 bytes of encryption data, and adds a word at the last of every group encryption data
Joint, generates the described target data of data form；Wherein, in the last byte added of every group encryption data by often organizing data
The bit7 composition of each byte.
A kind of data transmitting equipment based on Wi-Fi equipment, including:
Data length determines module, for determining the data length of target data；
Divide module, for according to described data length, described target data is divided into N number of probe according to pre-defined rule
Request bag；Wherein, N is positive integer；
Sending module, for described N number of probe request bag is transmitted by predetermined Wi-Fi frequency range, so that number
Described target data is obtained by described predetermined Wi-Fi frequency range according to the equipment of reception.
Wherein, also include:
Encryption data generation module, for being encrypted by predetermined cryptographic algorithm by initial data, generates encryption data；
Target data generation module, for the encryption data of hex form being changed according to pre-defined rule, generates data
The described target data of form.
Wherein, every 7 bytes of encryption data are that length is grouped by described target data generation module, and in often group
The last of encryption data adds a byte, generates the described target data of data form；Wherein, in every group encryption data
The byte of rear interpolation is made up of the bit7 of each byte often organizing data.
A kind of data receiver method based on Wi-Fi equipment, including:
Monitor predetermined Wi-Fi frequency range in real time, and from described predetermined Wi-Fi frequency range, obtain the N that data transmitting equipment sends
Individual probe request bag；Wherein, N is positive integer；
The Data Identification carried according to probe request bag, is combined described N number of probe request bag, also
Former go out target data.
Wherein, described in restore target data after, also include:
Described target data by data form is converted to the encryption data of hex form；
According to predetermined AES, described encryption data is decrypted, generates initial data.
A kind of data receiver based on Wi-Fi equipment, including:
Data acquisition module, monitors predetermined Wi-Fi frequency range, and obtains number from described predetermined Wi-Fi frequency range in real time
The N number of probe request bag sent according to the equipment of transmission；Wherein, N is positive integer；
Target data recovery module, for the Data Identification carried according to probe request bag, by described N number of probe
Request bag is combined, and restores target data.
A kind of data communication system based on Wi-Fi equipment, the data transmitting equipment described in above-mentioned any one and data
Reception equipment.
By above scheme, a kind of based on Wi-Fi equipment data communications method that the embodiment of the present invention provides, set
Standby and system comprises determining that the data length of target data；According to described data length, by described target data according to pre-set pattern
Then it is divided into N number of probe request bag；Described N number of probe request bag is transmitted by predetermined Wi-Fi frequency range, with
Data receiver is made to obtain described target data by described predetermined Wi-Fi frequency range.Visible, in the present embodiment, by inciting somebody to action
Target data is divided into several probe request bags, and is transmitted by predetermined Wi-Fi frequency range, sends out not affecting data
In the case of the Wi-Fi network sending equipment current connects, it is achieved that the equipment sending data outside Wi-Fi network, add use
Family is to the convenience of outer net equipment sending data.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is a kind of data transmission method for uplink flow chart based on Wi-Fi equipment disclosed in the embodiment of the present invention；
Fig. 2 is a kind of data transmitting equipment structural representation based on Wi-Fi equipment disclosed in the embodiment of the present invention；
Fig. 3 is a kind of data receiver method flow chart based on Wi-Fi equipment disclosed in the embodiment of the present invention；
Fig. 4 is a kind of data receiver structural representation based on Wi-Fi equipment disclosed in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
The embodiment of the invention discloses a kind of data communications method based on Wi-Fi equipment, equipment and system, to realize
Between Wi-Fi equipment under conditions of not building network, carry out the communication of data.
See Fig. 1, a kind of based on Wi-Fi equipment the data transmission method for uplink that the embodiment of the present invention provides, including:
S101, determine the data length of target data；
Wherein, the generation method of described target data includes:
Initial data is encrypted by predetermined cryptographic algorithm, generates encryption data；
The encryption data of hex form is changed according to pre-defined rule, generates the described target data of data form.
Concrete, the producing method of initial data is determined by version.And by predetermined encryption in the present embodiment
The encryption data that algorithm produces can be by ARC4 AES, uses password " mxchip_easylink_minus " calculate
Produce, it should be noted that be not limited to this kind of cipher mode in the present embodiment.
Wherein, the described encryption data by hex form is changed according to pre-defined rule, generates the described mesh of data form
Mark data, including:
It is that length is grouped by every 7 bytes of encryption data, and adds a word at the last of every group encryption data
Joint, generates the described target data of data form；Wherein, in the last byte added of every group encryption data by often organizing data
The bit7 composition of each byte.
Concrete, owing to the API of mobile phone control scan (scanning) can only input assic code, assic code is to be more than
0x7F's, therefore, will often organize one byte of increase after data in the present embodiment, last byte is owned by these group data
Bit7 according to position form, earlier data the most only retains low 7.Thus can ensure that data are not more than 0x7F all the time.
Concrete, no more than 0x7F is owing to 0x7F is exactly the low 7 of a byte, so by highest order i.e. bit7
The most all taking out for producing a new byte, this byte is 0 or 1 for representing the highest order of above 7 bytes.
It is 0x81 than the content if any 7 bytes, 0x73,0xa3,0x02,0x55,0xf3,0x85；Their bit7 is 1,0 respectively,
1,0,0,1,1, these 7 bit are exactly 1100101 according to the data of binary format, and 16 corresponding binary data are exactly 0x65；All
Removing value later for bit7 is: 0x01,0x73,0x23,0x02,0x55,0x73,0x05；So 8 bytes finally can be produced
Data are as follows: 0x01,0x73,0x23,0x02,0x55,0x73,0x05,0x65；Wherein 0x65 is based on above 7 bytes
The new byte that highest order is combined into.
S102, according to described data length, described target data is divided into N number of probe request according to pre-defined rule
Bag；Wherein, N is positive integer；
Concrete, in the present embodiment by sending the probe request bag with special ssid, real distribution
Information passes to module.
The data packet format of the ssid of Probe request refers to table 1:
Table 1
| 0x01 | flag | seq | <Data…> |
The first character joint of packet is 0x01 all the time, and expression is EasyLink Minus distribution data.
Flag: one byte defines and refers to table 2:
Table 2
| Bit7=0 | Bit6～4=version | Bit3～0=checksum |
Version: can be 1 to 7, version determine how to unpack ssid data, concrete, as Version=1,
Refer to table 3, initial data by ssid_len,<ssid>,<key>3 part form:
Table 3
| IP(4bytes) | Ssid_len | Ssid | Key |
Checksum: be verification and the calculating that seq and Data is CRC8, take low 4bits.
Seq: one byte defines and refers to table 4:
Table 4
| Bit7=0 | Bit6～bit4=packet number | Bit3～bit0=sequence number |
Packet number: a total of how many distribution bags
Sequence number: which bag current bag is in, and starts counting up from 1.
Assuming to need altogether 2 probe request to form final data, seq is 0x21 the most respectively, 0x22.
S103, described N number of probe request bag is transmitted by predetermined Wi-Fi frequency range, so that data receiver sets
Standby by the described predetermined Wi-Fi frequency range described target data of acquisition.
Concrete, the probe request in the present embodiment is wifi active scan, i.e. checks around AP's by mobile phone
The function of list.And the probe request in the present embodiment can send out when wrapping in any, and it is not IP layer
Data, are the management frame data of wifi.
Below to the embodiment of the present invention provide data transmitting equipment be introduced, data transmitting equipment described below with
Above-described data transmission method for uplink can be cross-referenced.
See Fig. 2, a kind of based on Wi-Fi equipment the data transmitting equipment 100 that the embodiment of the present invention provides, including:
Data length determines module 101, for determining the data length of target data；
Divide module 102, for according to described data length, described target data is divided into according to pre-defined rule N number of
Probe request bag；Wherein, N is positive integer；
Sending module 103, for described N number of probe request bag is transmitted by predetermined Wi-Fi frequency range, with
Data receiver is made to obtain described target data by described predetermined Wi-Fi frequency range.
Based on technique scheme, this programme also includes:
Encryption data generation module, for being encrypted by predetermined cryptographic algorithm by initial data, generates encryption data；
Target data generation module, for the encryption data of hex form being changed according to pre-defined rule, generates data
The described target data of form.
Based on technique scheme, every 7 bytes of encryption data are that length is carried out by described target data generation module
Packet, and add a byte at the last of every group encryption data, generate the described target data of data form；Wherein, often
The last byte added of group encryption data is made up of the bit7 of each byte often organizing data.
See Fig. 3, a kind of based on Wi-Fi equipment the data receiver method that the embodiment of the present invention provides, including:
S201, the in real time predetermined Wi-Fi frequency range of monitoring, and acquisition data transmitting equipment is sent out from described predetermined Wi-Fi frequency range
The N number of probe request bag sent；Wherein, N is positive integer；
S202, the Data Identification carried according to probe request bag, carry out group by described N number of probe request bag
Close, restore target data.
Wherein, described in restore target data after, also include:
Described target data by data form is converted to the encryption data of hex form；
According to predetermined AES, described encryption data is decrypted, generates initial data.
Concrete, after restoring target data, reduction initial data process is actually inverse to of ciphering process
Computing, such as, be encrypted in this embodiment by predetermined cryptographic algorithm, then reducing initial data when, the most logical
Cross this AES to be decrypted.
See Fig. 4, a kind of based on Wi-Fi equipment the data receiver 200 that the embodiment of the present invention provides, including:
Data acquisition module 201, monitors predetermined Wi-Fi frequency range, and obtains from described predetermined Wi-Fi frequency range in real time
N number of probe request bag that data transmitting equipment sends；Wherein, N is positive integer；
Target data recovery module 202, for the Data Identification carried according to probe request bag, by described N number of
Probe request bag is combined, and restores target data.
Based on above-described embodiment, this programme also includes initial data recovery module, for by the described target of data form
Data are converted to the encryption data of hex form, and are decrypted described encryption data according to predetermined AES, generate former
Beginning data.
A kind of based on Wi-Fi equipment the data communication system that the embodiment of the present invention also provides for, including above-described embodiment institute
The data transmitting equipment 100 stated and data receiver 200.
A kind of based on Wi-Fi equipment data communications method, equipment and system that the embodiment of the present invention provides comprise determining that
The data length of target data；According to described data length, described target data is divided into N number of probe according to pre-defined rule
Request bag；Described N number of probe request bag is transmitted by predetermined Wi-Fi frequency range, so that data receiver
Described target data is obtained by described predetermined Wi-Fi frequency range.Visible, in the present embodiment, if by target data is divided into
Dry probe request bag, and be transmitted by predetermined Wi-Fi frequency range, not affecting, data transmitting equipment is current
In the case of Wi-Fi network connects, it is achieved that the equipment sending data outside Wi-Fi network, add user to outer net equipment
Send the convenience of data.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (10)
1. a data transmission method for uplink based on Wi-Fi equipment, it is characterised in that including:
Determine the data length of target data；
According to described data length, described target data is divided into N number of probe request bag according to pre-defined rule；Wherein, N
For positive integer；
Described N number of probe request bag is transmitted by predetermined Wi-Fi frequency range, so that data receiver passes through institute
State predetermined Wi-Fi frequency range and obtain described target data.
Data transmission method for uplink the most according to claim 1, it is characterised in that the generation method of described target data includes:
Initial data is encrypted by predetermined cryptographic algorithm, generates encryption data；
The encryption data of hex form is changed according to pre-defined rule, generates the described target data of data form.
Data transmission method for uplink the most according to claim 2, it is characterised in that described by the encryption data of hex form according to
Pre-defined rule is changed, and generates the described target data of data form, including:
It is that length is grouped by every 7 bytes of encryption data, and adds a byte, life at the last of every group encryption data
Become the described target data of data form；Wherein, in the last byte added of every group encryption data by often organizing each of data
The bit7 composition of byte.
4. a data transmitting equipment based on Wi-Fi equipment, it is characterised in that including:
Data length determines module, for determining the data length of target data；
Divide module, for according to described data length, described target data is divided into N number of probe according to pre-defined rule
Request bag；Wherein, N is positive integer；
Sending module, for being transmitted described N number of probe request bag by predetermined Wi-Fi frequency range, so that data connect
Receiving unit obtains described target data by described predetermined Wi-Fi frequency range.
Data transmitting equipment the most according to claim 4, it is characterised in that also include:
Encryption data generation module, for being encrypted by predetermined cryptographic algorithm by initial data, generates encryption data；
Target data generation module, for the encryption data of hex form being changed according to pre-defined rule, generates data form
Described target data.
Data transmitting equipment the most according to claim 5, it is characterised in that
Every 7 bytes of encryption data are that length is grouped by described target data generation module, and in every group encryption data
Last add a byte, generate the described target data of data form；Wherein, add at every group encryption data last
Byte is made up of the bit7 of each byte often organizing data.
7. a data receiver method based on Wi-Fi equipment, it is characterised in that including:
Monitor predetermined Wi-Fi frequency range in real time, and from described predetermined Wi-Fi frequency range, obtain the N number of of data transmitting equipment transmission
Probe request bag；Wherein, N is positive integer；
The Data Identification carried according to probe request bag, is combined described N number of probe request bag, restores
Target data.
Data receiver method the most according to claim 7, it is characterised in that described in restore target data after, also wrap
Include:
Described target data by data form is converted to the encryption data of hex form；
According to predetermined AES, described encryption data is decrypted, generates initial data.
9. a data receiver based on Wi-Fi equipment, it is characterised in that including:
Data acquisition module, monitors predetermined Wi-Fi frequency range, and acquisition data is sent out from described predetermined Wi-Fi frequency range in real time
Send N number of probe request bag that equipment sends；Wherein, N is positive integer；
Target data recovery module, for the Data Identification carried according to probe request bag, by described N number of probe
Request bag is combined, and restores target data.
10. a data communication system based on Wi-Fi equipment, it is characterised in that include such as any one in claim 4-6
Described data transmitting equipment and data receiver as claimed in claim 9.
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| CN201610296966.3A CN106060801B (en) | 2016-05-06 | 2016-05-06 | Data communication method, device and system based on Wi-Fi device |
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| CN201610296966.3A CN106060801B (en) | 2016-05-06 | 2016-05-06 | Data communication method, device and system based on Wi-Fi device |
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| CN106507394A (en) * | 2016-11-15 | 2017-03-15 | 杭州华三通信技术有限公司 | Data transmission method for uplink, data receiver method and electronic equipment, access point |
| CN111341066A (en) * | 2018-12-19 | 2020-06-26 | 浙江宇视科技有限公司 | A wireless probe-based alarm method and system |
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|---|---|
| CN106060801B (en) | 2020-02-11 |
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