CN105162734B - Multi-source data Transmission system based on Zigbee network - Google Patents
Multi-source data Transmission system based on Zigbee network Download PDFInfo
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- CN105162734B CN105162734B CN201510474229.3A CN201510474229A CN105162734B CN 105162734 B CN105162734 B CN 105162734B CN 201510474229 A CN201510474229 A CN 201510474229A CN 105162734 B CN105162734 B CN 105162734B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 79
- 238000012545 processing Methods 0.000 claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 238000009432 framing Methods 0.000 claims abstract description 18
- 230000009467 reduction Effects 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 25
- 230000008569 process Effects 0.000 claims description 16
- 238000012937 correction Methods 0.000 claims description 12
- 238000012795 verification Methods 0.000 claims description 12
- 238000011084 recovery Methods 0.000 claims description 11
- 230000011218 segmentation Effects 0.000 claims description 9
- 238000003032 molecular docking Methods 0.000 claims description 2
- 230000006870 function Effects 0.000 description 5
- 241001269238 Data Species 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 241000256844 Apis mellifera Species 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
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- H04L49/608—ATM switches adapted to switch variable length packets, e.g. IP packets
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Abstract
The multi-source data Transmission system based on Zigbee network that the invention discloses a kind of being related to wireless data transmission field, the data of the transmitting terminal acquisition sensor of the system, and handled according to the format of interchangeable frame, is packaged into several data frames；Judge each data frame length whether 32 bytes of ＞, if so, data frame is split, again framing, arrangement；Frame check is carried out to the data frame of the byte of length≤32 successively；Transmit the data frame after frame check；Receiving terminal receives data frame, and detects：When detecting the frame head of data field, judge whether the postamble for detecting data field, if it is not, repeating to receive detection, if so, data of the reduction by replacement processing, and store, until receiving all data frames, and detect, restore, finally obtains the data of transmitting terminal acquisition.The present invention realizes the uniform transmission of Multiple Source Sensor information, improves the adaptability to Multiple Source Sensor, reduces complexity when back-end server parsing data.
Description
Technical field
The present invention relates to wireless data transmission fields, and in particular to a kind of multi-source data transmission system based on Zigbee network
System.
Background technology
Zigbee is translated into " purple honeybee " in China, a kind of emerging short distance, low-power consumption, low cost, low complex degree, from
The wireless communication technique of tissue, it is similar with bluetooth, it is mainly suitable for, for automatically controlling and remote control field, to be embedded in various
Equipment.
Currently, in Zigbee network, the type of sensor is more, and traditional data transfer mode is a kind of sensor pair
A kind of transmission method is answered, that is, is directed to each different types of sensor, the data which acquires is sealed by specific protocol
After dress, then it is transferred to back-end server, this data transfer mode is difficult to adapt to Multiple Source Sensor, and increases back-end services
Device parses complexity when data.
Invention content
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of multi-sources based on Zigbee network
Data transmission system realizes the uniform transmission of Multiple Source Sensor information, improves the adaptability to Multiple Source Sensor, reduces rear end clothes
Complexity when device parsing data of being engaged in.To achieve the above objectives, the technical solution adopted by the present invention is that：One kind being based on Zigbee nets
The multi-source data Transmission system of network, including transmitting terminal and receiving terminal, the transmitting terminal include acquisition processing module, frame length judgement
Module, framing module, correction verification module and transmission module, the receiving terminal include detection module and recovery module, wherein：
The acquisition processing module is used for：The data of sensor are acquired, and are handled according to the format of interchangeable frame：It is general
Frame includes data field, and gathered data is loaded into the data field of interchangeable frame, and the frame of the data field to the interchangeable frame after load
Head, postamble are replaced processing respectively, several first data frames are packaged into, by all first data frames according to the suitable of gathered data
Sequence is arranged；
The frame length judgment module is used for：According to putting in order for the first data frame, each first data are judged successively
The length of frame whether 32 bytes of ＞, if so, the first data frame of 32 bytes of length ＞ is sent to framing module；If it is not, then
First data frame is named as the second data frame, and the second data frame is sent to correction verification module；
The framing module is used for：When receiving the first data frame of 32 bytes of length ＞, according to the sequence of gathered data,
First data frame of reception is split, according still further to format framing, the arrangement again of interchangeable frame, obtains several second data
Frame, the byte of the length of each second data frame≤32, and the second data frame is sent to correction verification module；
The correction verification module is used for：When receiving the second data frame, according to putting in order for the second data frame, successively to
Two data frames carry out frame check, obtain several third data frames, and all third data frames are sent to transmission module；
The transmission module is used for：When receiving third data frame, according to putting in order for third data frame, by third number
It is transmitted to the detection module of receiving terminal successively according to frame；
The detection module is used for：Third data frame is received successively, and the third data frame received is detected successively
Operation：When detecting the frame head of data field of third data frame, judge whether the frame for detecting the data field of third data frame
Tail, if so, the third data frame for the postamble for detecting data field is sent to recovery module；If it is not, then continuing to third
Data frame, and it is detected operation；
The recovery module is used for：When receiving the third data frame that detection module is sent, to the data of third data frame
Restoring operation is carried out by replacing the data of processing in domain, and is stored, until receiving all third numbers that detection module is sent
It according to frame, and restores, finally obtains the data of sensor.
Based on the above technical solution, the format of the interchangeable frame is：Serial number in frame head+frame identification+present frame frame+
Remainder in present frame frame+from node short address+data field+CRC check+postamble.
Based on the above technical solution, the acquisition processing module includes acquisition submodule, segmentation submodule, load
Submodule and replacement submodule, wherein：
The acquisition submodule is used for：The data for acquiring sensor, segmentation submodule is sent to by gathered data；
The segmentation submodule is used for：Gathered data is divided into several subdatas according to its sequence, and is sent to and adds
Carrier module；
The load submodule is used for：Every subdata is loaded into successively in the data field of corresponding interchangeable frame；
The replacement submodule is used for：Processing is replaced respectively to frame head, the postamble of data field, is packaged into several first
Data frame arranges all first data frames according to the sequence of gathered data.
Based on the above technical solution, the process that the framing module obtains several second data frames is：By first
Subdata in the data field of digital frame is divided into several divided datas, and every divided data is loaded into corresponding interchangeable frame respectively
It in data field, and is arranged according to the sequence of subdata, obtains several second data frames.
Based on the above technical solution, frame of the acquisition processing module to the data field of the interchangeable frame after load
Head, postamble are replaced the process of processing respectively：There are 0xff in the frame head of the data field of interchangeable frame after load, postamble
Or when 0xfe, the 0xff in the frame head of the data field of the interchangeable frame after load, postamble is replaced with into 0xfe 0x00,0xfe is replaced
It is changed to 0xfe0xf1.
Based on the above technical solution, the recovery module is handled passing through replacement in the data field of third data frame
Data carry out restoring operation process be：By the 0xfe in the data by replacing processing in the data field of third data frame
0x00 is reduced to 0xff, and 0xfe 0xf1 are reduced to 0xfe.
Based on the above technical solution, the process of the transmission module transmission third data frame is：Transmission module is every
One third data frame of secondary transmission：Transmission module includes serial ports, transmission chip and antenna, and transmission module is by serial ports by third
Data frame passes to transmission chip, and the single byte of third data frame is sent to receiving terminal by transmission chip successively by antenna
Detection module, until all bytes of third data frame are sent by transmission chip.
Based on the above technical solution, the transmission module is additionally operable to the first safety time of setting, if transmission module
The first safety times of time ＞ for sending third data frame then terminate to send third data frame.
Based on the above technical solution, the detection module is additionally operable to the second safety time of setting, if detection module
The second safety times of time ＞ for receiving third data frame then stop receiving third data frame.
Based on the above technical solution, second safety time is 20 milliseconds.
Compared with the prior art, the advantages of the present invention are as follows：
(1) data of sensor are loaded into the data field of interchangeable frame by the present invention, and to the number of the interchangeable frame after load
It is replaced processing respectively according to the frame head in domain, postamble, is packaged into several first data frames.This mode is by Multiple Source Sensor information
It is uniformly processed according to the format of interchangeable frame, improves the adaptability of Multiple Source Sensor；Using tunnel transmission mode, at unified
Multiple Source Sensor information after reason is transferred to receiving terminal (back-end server), reduces complexity when back-end server parsing data
Degree.
(2) different for the type of sensor in the present invention, the format of corresponding sensor information is different, devises not
The interchangeable frame of fixed length, the transport protocol of this variable word length adapt to the transmission of multiple sensors information, the i.e. biography of multi-source data
It is defeated, it especially adapts in the hydrology and articles from the storeroom message transmitting procedure, data length is uncontrollable caused by sensor is various
Situation.
(3) in the present invention, when in the frame head of the data field of the interchangeable frame after load, postamble there are when 0xff or 0xfe, will
0xff in the frame head of the data field of interchangeable frame after load, postamble replaces with 0xfe 0x00, and 0xfe is replaced with 0xfe
0xf1, this is because the other parts of data field are also likely to be present 0xff or 0xfe, to the data field of the interchangeable frame after load
Frame head, postamble are replaced processing, the phenomenon that can preventing frame head, the postamble of misidentification data field.
(4) present invention is before transmission data frame, judge successively each first data frame length whether 32 bytes of ＞, if the
The byte of the length of one data frame≤32, then be named as the second data frame, if the length ＞ 32 of the first data frame by the first data frame
Byte is then split the first data frame, according still further to format framing, the arrangement again of interchangeable frame, obtains several length≤32
Second data frame of byte ensures length≤32 byte of each second data frame, to ensure data frame transfer process
Reliability.
Description of the drawings
Fig. 1 is the flow diagram of the multi-source data transmission method based on Zigbee network in the embodiment of the present invention；
Fig. 2 is the flow diagram of step S1 in Fig. 1.
Specific implementation mode
Invention is further described in detail with reference to the accompanying drawings and embodiments.
The embodiment of the present invention provides a kind of multi-source data Transmission system based on Zigbee network, including transmitting terminal and reception
End, transmitting terminal includes acquisition processing module, frame length judgment module, framing module, correction verification module and transmission module, the reception
End includes detection module and recovery module, wherein：
Acquisition processing module is used for：The data of sensor are acquired, and are handled according to the format of interchangeable frame：Interchangeable frame packet
Data field is included, gathered data is loaded into the data field of interchangeable frame, and to the frame head of the data field of the interchangeable frame after load, frame
Tail is replaced processing respectively, is packaged into several first data frames, by all first data frames according to gathered data sequence into
Row arrangement；
Wherein, the format of interchangeable frame is：Remainder in serial number+present frame frame in frame head+frame identification+present frame frame+from section
Point short address+data field+CRC check+postamble.
Acquisition processing module is replaced frame head, the postamble of the data field of the interchangeable frame after load the process of processing respectively
For：When in the frame head of the data field of the interchangeable frame after load, postamble there are when 0xff or 0xfe, by the number of the interchangeable frame after load
0xfe 0x00 are replaced with according to the 0xff in the frame head in domain, postamble, 0xfe is replaced with into 0xfe 0xf1.
Frame length judgment module is used for：According to putting in order for the first data frame, each first data frame is judged successively
Length whether 32 bytes of ＞, if so, the first data frame of 32 bytes of length ＞ is sent to framing module；If it is not, then should
First data frame is named as the second data frame, and the second data frame is sent to correction verification module.
Framing module is used for：When receiving the first data frame of 32 bytes of length ＞, according to the sequence of gathered data, docking
The first data frame received is split, and according still further to format framing, the arrangement again of interchangeable frame, obtains several second data frames, often
The byte of the length of a second data frame≤32, and the second data frame is sent to correction verification module.
Correction verification module is used for：When receiving the second data frame, according to putting in order for the second data frame, counted successively to second
Frame check is carried out according to frame, obtains several third data frames, and all third data frames are sent to transmission module.
Transmission module is used for：When receiving third data frame, according to putting in order for third data frame, by third data frame
It is transmitted to the detection module of receiving terminal successively,
Wherein, the process of transmission module transmission third data frame is：Transmission module only sends a third data frame every time：
Transmission module includes serial ports, transmission chip and antenna, and third data frame is passed to transmission chip by transmission module by serial ports, hair
The detection module for sending chip that the single byte of third data frame is sent to receiving terminal successively by antenna, up to transmission chip will
All bytes of third data frame are sent.
Transmission module is additionally operable to the first safety time of setting, if the time ＞ first that transmission module sends third data frame pacifies
Full-time, then terminate to send third data frame.
Detection module is used for：Third data frame is received successively, and operation is detected successively to the third data frame received：
When detecting the frame head of data field of third data frame, judge whether the postamble for detecting the data field of third data frame, if
It is that the third data frame for the postamble for detecting data field is then sent to recovery module；If it is not, then continuing to third data
Frame, and it is detected operation.
Detection module is additionally operable to the second safety time of setting, if the time ＞ second that detection module receives third data frame pacifies
Full-time, then stop receiving third data frame.In the present embodiment, the second safety time is set as 20 milliseconds.
Recovery module is used for：When receiving the third data frame that detection module is sent, in the data field of third data frame
Data by replacing processing carry out restoring operation, and store, until all third data frames that detection module is sent are received,
And restore, finally obtain the data of sensor.
Wherein, mistake of the recovery module to the data progress restoring operation by replacing processing in the data field of third data frame
Cheng Wei：0xfe 0x00 in data by replacing processing in the data field of third data frame are reduced to 0xff, by 0xfe
0xf1 is reduced to 0xfe.
Further, acquisition processing module includes acquisition submodule, segmentation submodule, load submodule and replaces submodule
Block, wherein：
Acquisition submodule is used for：The data for acquiring sensor, segmentation submodule is sent to by gathered data；
Segmentation submodule is used for：Gathered data is divided into several subdatas according to its sequence, and is sent to load
Module；
Load submodule is used for：Every subdata is loaded into successively in the data field of corresponding interchangeable frame；
Submodule is replaced to be used for：Processing is replaced respectively to frame head, the postamble of data field, is packaged into several first data
Frame arranges all first data frames according to the sequence of gathered data.
Shown in Figure 1, the embodiment of the present invention also provides a kind of multi-source data transmission method based on Zigbee network, packet
Include following steps：
S1. the data of transmitting terminal acquisition sensor, and handled according to the format of interchangeable frame：Interchangeable frame includes data
Gathered data is loaded into the data field of interchangeable frame by domain, and is distinguished the frame head of the data field of the interchangeable frame after load, postamble
It is replaced processing, is packaged into several first data frames, all first data frames are arranged according to the sequence of gathered data.
Wherein, the format of interchangeable frame is：Serial number (1 byte) in frame head (3 byte)+frame identification (1 byte)+present frame frame+
Remainder (1 byte) in present frame frame+from node short address (2 byte)+data field (bytes of n≤18)+CRC check (2 byte)+
Postamble (3 byte), n is positive integer.In order to realize different functions, the format of interchangeable frame can be different.
The process for being replaced processing respectively to frame head, the postamble of the data field of the interchangeable frame after load is：After load
The frame head of data field of interchangeable frame, in postamble there are when 0xff (character) or 0xfe (character), after load
0xff in the frame head of the data field of interchangeable frame, postamble replaces with 0xfe 0x00 (two characters), and 0xfe is replaced with 0xfe
0xf1 (two characters).This is because the other parts of data field are also likely to be present 0xff or 0xfe, to the interchangeable frame after load
Frame head, the postamble of data field the phenomenon that being replaced processing, frame head, the postamble of misidentification data field can be prevented.
Shown in Figure 2, step S1 includes the following steps：
S101. the data of transmitting terminal acquisition sensor, several subdatas are divided by gathered data；
Subdata is loaded into the data field of corresponding interchangeable frame by S102. transmitting terminal putting in order by subdata successively；
S103. transmitting terminal is replaced processing respectively to frame head, the postamble of data field, is packaged into several first data frames,
All first data frames are arranged according to the sequence of gathered data.
S2. data transmission procedure can not then be ensured when 32 bytes of length ＞ of transmission data according to ZigBee module agreement
Reliability.Transmitting terminal puts in order according to the first data frame, judge successively each first data frame length whether ＞ 32
Byte, if so, the i.e. maximum length of the length ＞ transmission datas of first data frame, then go to step S3；If it is not, then by this
One data frame is named as the second data frame, goes to step S4.
S3. transmitting terminal is split the first data frame according to the sequence of gathered data, according still further to the format weight of interchangeable frame
New framing, arrangement, obtain several second data frames, and the byte of the length of each second data frame≤32 goes to step S4.
Wherein, the process for obtaining several second data frames is：Subdata in the data field of first digital frame is divided into
Divided data is loaded into the data field of corresponding interchangeable frame, obtains according to putting in order for divided data by several divided datas successively
Several second data frames.
S4. transmitting terminal putting in order according to the second data frame carries out frame check, i.e., to second to the second data frame successively
Data frame carries out CRC (Cyclic Redundancy Check, cyclic redundancy check code) and verifies, and obtains frame check code, and by its
It is put into the CRC check of second data frame, obtains several third data frames, go to step S5.
S5. transmitting terminal putting in order according to third data frame transmits third data frame, goes to step S6 successively.Transmission
The process of third data frame is：Transmitting terminal only sends a third data frame every time：Transmitting terminal includes serial ports, transmission chip and day
Third data frame is passed to transmission chip by line, transmitting terminal by serial ports, and transmission chip is by antenna successively by third data frame
Single byte be sent to receiving terminal, until all bytes of third data frame are sent by transmission chip.
Step S5 is further comprising the steps of：The first safety time is arranged in the transmitting terminal, if transmitting terminal transmits third data
The first safety times of time ＞ of frame, then transmitting terminal terminate transmit third data frame.
S6. receiving terminal receives third data frame successively, and operation is detected successively to the third data frame received：When connecing
When receiving end detects the frame head of the data field of third data frame, judge whether the postamble for detecting the data field of third data frame,
If so, going to step S7；If it is not, then repeating step S6.
Step S6 is further comprising the steps of：The second safety time is arranged in the receiving terminal, if receiving terminal receives third data
The second safety times of time ＞ of frame, then receiving terminal stopping receive third data frame, prevent the receive process in third data frame
In, system endless loop is caused because there is garbled-reception.
S7. data progress restoring operation of the receiving terminal to being handled by replacement in the data field of third data frame, and according to
The reception sequence of third data frame, by all data storage in the data field of the third data frame after reduction to specific storage
In space, until receiving terminal receives all third data frames, and by detection operation, restoring operation, final memory space
In all data formed a complete sensing data to get the data acquired to transmitting terminal.
To being by the process for replacing the data handled progress restoring operation in the data field of third data frame：By third number
It is inversely reduced to 0xff according to the 0xfe 0x00 in the data by replacing processing in the data field of frame, inversely also by 0xfe 0xf1
Originally it was 0xfe.
Below in conjunction with 3 specific embodiments, invention is further described in detail.
Embodiment 1
Embodiment 1 provides a kind of multi-source data transmission method based on Zigbee network, includes the following steps：
S1. the data of transmitting terminal acquisition sensor, and handled according to the format of interchangeable frame：Interchangeable frame includes data
Gathered data is loaded into the data field of interchangeable frame by domain, and is distinguished the frame head of the data field of the interchangeable frame after load, postamble
It is replaced processing, is packaged into several first data frames, all first data frames are arranged according to the sequence of gathered data.
The format of interchangeable frame is：Serial number (1 byte)+present frame in frame head (3 byte)+frame identification (1 byte)+present frame frame
Remainder (1 byte) in frame+from node short address (2 byte)+data field (bytes of n≤18)+CRC check (2 byte)+postamble (3
Byte), n is positive integer.
The first obtained data frame is as follows：
First data frame 1 (23 byte of data length)
First data frame 2 (17 byte of data length)
First data frame 3 (21 byte of data length)
First data frame 4 (31 byte of data length)
First data frame 5 (30 byte of data length)
First data frame 6 (30 byte of data length)
First data frame 7 (14 byte of data length)
S2. transmitting terminal putting in order according to the first data frame, judge successively each first data frame length whether ＞
32 bytes, if so, going to step S3；If it is not, first data frame is then named as the second data frame, step S4 is gone to；
S3. transmitting terminal is split the first data frame according to the sequence of gathered data, according still further to the format weight of interchangeable frame
New framing, arrangement, obtain several second data frames, and the byte of the length of each second data frame≤32 goes to step S4；
S4. transmitting terminal putting in order according to the second data frame carries out frame check to the second data frame successively, obtains several
Third data frame goes to step S5；
S5. transmitting terminal putting in order according to third data frame transmits third data frame, goes to step S6 successively；
S6. receiving terminal receives third data frame successively, and operation is detected successively to the third data frame received：When connecing
When receiving end detects the frame head of the data field of third data frame, judge whether the postamble for detecting the data field of third data frame,
If so, going to step S7；If it is not, then repeating step S6；
S7. receiving terminal by replacing the data of processing in the data field of third data frame to carrying out restoring operation, and stores,
Until receiving terminal receives all third data frames, and by detection operation, restoring operation, finally obtain transmitting terminal acquisition
Data.
Embodiment 2
Embodiment 2 provides a kind of multi-source data transmission method based on Zigbee network, in addition to general in step S1, S3
The format of frame is different from embodiment 1, remaining step all same.
In order to realize that inspection function, the format of the interchangeable frame in embodiment 2 be：Frame head (3 byte)+frame identification (1 byte)+
Remainder (1 byte) in serial number (1 byte)+present frame frame in present frame frame+from node short address (2 byte)+data field (n≤
18 bytes)+CRC check (2 byte)+postamble (3 byte), n is positive integer, the data field packet of the first data frame of first obtained
Including Transaction Mode (trafficwise), Transaction Mode are for selecting function to be achieved, in the present embodiment,
Transaction Mode selection inspection functions.
First data frame of gained is as follows：
First data frame 1 (19 byte of data length)
First data frame 2 (31 byte of data length)
First data frame 3 (30 byte of data length)
First data frame 4 (30 byte of data length)
First data frame 5 (14 byte of data length)
First data frame 6 (data length 11+n bytes)
First data frame 7 (20 byte of data length)
Embodiment 3
Embodiment 3 provides a kind of multi-source data transmission method based on Zigbee network, in addition to general in step S1, S3
The format of frame is different from embodiment 1, remaining step all same.
In order to realize that communication function, the format of the interchangeable frame in embodiment 3 be：Frame head (3 byte)+data field length (1 word
Section)+data field (n bytes)+CRC check (2 byte)+postamble (3 byte), n is positive integer.
First data frame of gained is as follows：
| Data length | Field | Remarks |
| 3 | Frame head | 5A5A5A |
| 1 | Data field length | The data length N of transmission |
| N | Data field | The data of transmission |
| 2 | CRC check | CRC check is carried out to data field |
| 3 | Postamble | A5A5A5 |
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (9)
1. a kind of multi-source data Transmission system based on Zigbee network, including transmitting terminal and receiving terminal, it is characterised in that：It is described
Transmitting terminal includes acquisition processing module, frame length judgment module, framing module, correction verification module and transmission module, the receiving terminal
Including detection module and recovery module, wherein：
The acquisition processing module is used for：The data of sensor are acquired, and are handled according to the format of interchangeable frame：Interchangeable frame packet
Data field is included, gathered data is loaded into the data field of interchangeable frame, and to the frame head of the data field of the interchangeable frame after load, frame
Tail is replaced processing respectively, is packaged into several first data frames, by all first data frames according to gathered data sequence into
Row arrangement；
The frame length judgment module is used for：According to putting in order for the first data frame, each first data frame is judged successively
Length whether 32 bytes of ＞, if so, the first data frame of 32 bytes of length ＞ is sent to framing module；If it is not, then should
First data frame is named as the second data frame, and the second data frame is sent to correction verification module；
The framing module is used for：When receiving the first data frame of 32 bytes of length ＞, according to the sequence of gathered data, docking
The first data frame received is split, and according still further to format framing, the arrangement again of interchangeable frame, obtains several second data frames, often
The byte of the length of a second data frame≤32, and the second data frame is sent to correction verification module；
The correction verification module is used for：When receiving the second data frame, according to putting in order for the second data frame, counted successively to second
Frame check is carried out according to frame, obtains several third data frames, and all third data frames are sent to transmission module；
The transmission module is used for：When receiving third data frame, according to putting in order for third data frame, by third data frame
It is transmitted to the detection module of receiving terminal successively；
The detection module is used for：Third data frame is received successively, and operation is detected successively to the third data frame received：
When detecting the frame head of data field of third data frame, judge whether the postamble for detecting the data field of third data frame, if
It is that the third data frame for the postamble for detecting data field is then sent to recovery module；If it is not, then continuing to third data
Frame, and it is detected operation；
The recovery module is used for：When receiving the third data frame that detection module is sent, in the data field of third data frame
Data by replacing processing carry out restoring operation, and store, until all third data frames that detection module is sent are received,
And restore, finally obtain the data of sensor；The format of the interchangeable frame is：Serial number in frame head+frame identification+present frame frame+when
Remainder in previous frame frame+from node short address+data field+CRC check+postamble.
2. the multi-source data Transmission system based on Zigbee network as described in claim 1, it is characterised in that：At the acquisition
Module is managed to include acquisition submodule, segmentation submodule, load submodule and replace submodule, wherein：
The acquisition submodule is used for：The data for acquiring sensor, segmentation submodule is sent to by gathered data；
The segmentation submodule is used for：Gathered data is divided into several subdatas according to its sequence, and is sent to load
Module；
The load submodule is used for：Every subdata is loaded into successively in the data field of corresponding interchangeable frame；
The replacement submodule is used for：Processing is replaced respectively to frame head, the postamble of data field, is packaged into several first data
Frame arranges all first data frames according to the sequence of gathered data.
3. the multi-source data Transmission system based on Zigbee network as claimed in claim 2, it is characterised in that：The framing mould
The process that block obtains several second data frames is：Subdata in the data field of first data frame is divided into several scores
According to every divided data being loaded into respectively in the data field of corresponding interchangeable frame, and arranged according to the sequence of subdata, is obtained
Several second data frames.
4. the multi-source data Transmission system based on Zigbee network as described in claim 1, it is characterised in that：At the acquisition
Reason module is replaced frame head, the postamble of the data field of the interchangeable frame after load the process of processing and is respectively：After load
There are when 0xff or 0xfe in the frame head of the data field of interchangeable frame, postamble, by the frame head of the data field of the interchangeable frame after load, frame
0xff in tail replaces with 0xfe 0x00, and 0xfe is replaced with 0xfe 0xf1.
5. the multi-source data Transmission system based on Zigbee network as claimed in claim 4, it is characterised in that：The reduction mould
Block to being by the process for replacing the data handled progress restoring operation in the data field of third data frame：By third data frame
The 0xfe 0x00 in data in data field by replacing processing are reduced to 0xff, and 0xfe 0xf1 are reduced to 0xfe.
6. the multi-source data Transmission system based on Zigbee network as described in claim 1, which is characterized in that the transmission mould
Block transmission third data frame process be：Transmission module only sends a third data frame every time：Transmission module includes serial ports, hair
Send chip and antenna, third data frame is passed to transmission chip by transmission module by serial ports, transmission chip by antenna successively
The single byte of third data frame is sent to the detection module of receiving terminal, until transmission chip is by all words of third data frame
Section is sent.
7. the multi-source data Transmission system based on Zigbee network as described in claim 1, it is characterised in that：The transmission mould
Block is additionally operable to the first safety time of setting to be terminated if transmission module sends the first safety times of time ＞ of third data frame
Send third data frame.
8. the multi-source data Transmission system based on Zigbee network as described in claim 1, it is characterised in that：The detection mould
Block is additionally operable to the second safety time of setting to be stopped if detection module receives the second safety times of time ＞ of third data frame
Receive third data frame.
9. the multi-source data Transmission system based on Zigbee network as claimed in claim 8, it is characterised in that：Second peace
Full-time is 20 milliseconds.
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| CN106850149A (en) * | 2017-04-21 | 2017-06-13 | 深圳怡化电脑股份有限公司 | A kind of data transmission method, device, equipment and storage medium |
| CN110084971A (en) * | 2019-04-25 | 2019-08-02 | 益逻触控系统公司 | The operating method and self-service terminal of self-service terminal |
| CN112783827A (en) * | 2019-11-11 | 2021-05-11 | 北京京邦达贸易有限公司 | Multi-sensor data storage method and device |
| CN112825513B (en) * | 2019-11-21 | 2023-08-22 | 深圳市中兴微电子技术有限公司 | Method, device, equipment and storage medium for transmitting multipath data |
| CN112887277B (en) * | 2021-01-12 | 2022-07-08 | 昆高新芯微电子(江苏)有限公司 | Conversion method and device of field bus and Ethernet and computer storage medium |
| CN114389895B (en) * | 2022-02-15 | 2024-01-23 | 北京国基科技股份有限公司 | Ethernet frame safe transmission method, device and system |
| CN117499994B (en) * | 2023-12-29 | 2024-03-19 | 南京市计量监督检测院 | Compression and restoration method for differential data recording and transmission of GNSS (Global navigation satellite System) locator |
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