CN108173927A - A kind of wireless data communication method and system - Google Patents
A kind of wireless data communication method and system Download PDFInfo
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- CN108173927A CN108173927A CN201711432257.4A CN201711432257A CN108173927A CN 108173927 A CN108173927 A CN 108173927A CN 201711432257 A CN201711432257 A CN 201711432257A CN 108173927 A CN108173927 A CN 108173927A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The present invention discloses a kind of wireless data communication method and system, and the wireless data communication method includes：Channel node obtains the broadcast message of surroundings nodes；The broadcast message includes frequency, node identification, transmission series, data information and more New count；Sim cards are provided in the channel node；The broadcast message of the surroundings nodes is sent to the channel node by wireless communication mode, and the wireless communication mode is the sending method without sim cards；Store each broadcast message；Each broadcast message is sent by the way of sim cards to data center.The real time data that wireless data communication method provided by the invention need to only set sim cards on channel node and can complete the node transmits, and reduces the quantity of sim cards, reduces the data traffic of sim cards.
Description
Technical field
The present invention relates to field of wireless communication, more particularly to a kind of wireless data communication method and system.
Background technology
Currently, for the distribution system of water supply of central water supply engineering from main pipe, branch's main pipe to tip, distributed areas are wide (reachable
Tens kilometers), also, pipe network has different lifts and trend according to user distribution.The monitoring of the distribution system of water supply is to ensuring safety
Reliable supply water has very important meaning.
The exception of the distribution system of water supply if leak, booster, pressure are inadequate, can all influence the safe water of user.In general,
Only it is to be understood that pressure of supply water and flow (flow velocity and direction) on some key nodes of pipe network, passes through certain pipe network monitoring mould
Type, it is possible to judge the whole water supply health status of pipe network.
According to the routing of pipe network, monitoring point is distributed in many places, particularly rural area, and monitoring point is dispersed in different
Village.Currently existing system realization is generally collected the data of each monitoring point using mobile GPRS network, Mei Gejian
Measuring point is required for a sim card, by the computer for periodically sending data to water factory or central monitoring position.From Communication topology
On, it is through point to point communication mode that each monitoring point, which corresponds to central monitoring position,.
This mode produces such contradiction, if the acquisition monitoring point quantity of a water supply network is few, is difficult to pair
The overall operation situation of pipe network is held.However monitoring point is more, needs the sim cards number applied and the communication cost of every month
It is higher.Simultaneously according to time situation analysis, the data that each monitoring point acquires every time are very small, generally with regard to a pressure and stream
Measure data.In daily normal monitoring, acquisition frequency is also without very high.This creates the terminal such a demands --- and it can
In the case where reducing sim cards, the quantity as much as possible for supporting monitoring point makes full use of the flows of each sim cards.
Invention content
The object of the present invention is to provide a kind of wireless data communication method and systems, reduce the quantity of sim cards, reduce
Cost.
To achieve the above object, the present invention provides following schemes：
The present invention provides a kind of wireless data communication method, the wireless data communication method includes：
Channel node obtains the broadcast message of surroundings nodes；The broadcast message includes frequency, node identification, transmits grade
Number, data information and more New count；Sim cards are provided in the channel node；The broadcast message of the surroundings nodes passes through nothing
Line communication modes are sent to the channel node, and the wireless communication mode is the sending method without sim cards；
Store each broadcast message；
Each broadcast message is sent by the way of sim cards to data center.
Optionally, the channel node further includes after obtaining the broadcast message of surroundings nodes：
To the update of the broadcast message, count is incremented；
1 is added to the transmission series of the broadcast message.
Optionally, it is further included before each broadcast message of storage：
Judge whether the frequency of the broadcast message is in own frequency in same frequency section, obtain the first judgement knot
Fruit；The own frequency represents the frequency of the channel node；
If first judging result represents that the frequency of the broadcast message is in different frequencies from the own frequency
The broadcast message is deleted in section.
Optionally, it is further included before each broadcast message of storage：
Judge whether the transmission series of the broadcast message more than or equal to the transmission series of local corresponding informance and described
The more New count of ground corresponding informance is more than 0, obtains the second judging result；The frequency of the local corresponding informance is believed with the broadcast
The frequency of breath is identical, and the node identification of the local corresponding informance is identical with the nodal information of the broadcast message；The local
Corresponding informance is stored in the channel node；
If second judging result represents that the transmission series of the broadcast message are more than or equal to the local corresponding informance
Transmission series and the more New count of the local corresponding informance be more than 0, delete the broadcast message.
Optionally, it is further included before each broadcast message of storage：
If second judging result represents that the transmission series of the broadcast message are less than the biography of the local corresponding informance
The more New count of graded number or the local corresponding informance is equal to 0, deletes the local corresponding informance.
Optionally, the channel node further includes after obtaining the broadcast message of surroundings nodes：
Judge whether the transmission series of the broadcast message are more than given threshold, obtain third judging result；
If the third judging result represents the transmission series of the broadcast message and is more than the given threshold, described in deletion
Broadcast message.
The present invention also provides a kind of wireless data communication system, the wireless data communication system includes：
Acquisition module obtains the broadcast message of surroundings nodes for channel node；The broadcast message includes frequency, node
Mark, transmission series, data information and more New count；Sim cards are provided in the channel node；The broadcast of the surroundings nodes
Information is sent to the channel node by wireless communication mode, and the wireless communication mode is the transmission without sim cards
Mode；
Memory module, for storing each broadcast message；
Sending module, for sending each broadcast message by the way of sim cards to data center.
Optionally, the wireless data communication system further includes：
First update module, for the update to the broadcast message, count is incremented；
Second update module adds 1 for the transmission series to the broadcast message.
Optionally, the wireless data communication system further includes：
First judgment module, for judging whether the frequency of the broadcast message is in same frequency section with own frequency
It is interior, obtain the first judging result；The own frequency represents the frequency of the channel node；
First removing module, if representing the frequency of the broadcast message and itself frequency for first judging result
Rate is in different frequency separations, deletes the broadcast message.
Optionally, the wireless data communication system further includes：
Second judgment module, for judging whether that the transmission series of the broadcast message are more than or equal to local corresponding informance
The more New count of transmission series and the local corresponding informance is more than 0, obtains the second judging result；The local corresponding informance
Frequency is identical with the frequency of the broadcast message, and the node identification and the node of the broadcast message of the local corresponding informance are believed
Manner of breathing is same；The local corresponding informance is stored in the channel node；
Second removing module, if the transmission series for representing the broadcast message for second judging result are more than or equal to
The more New count of the transmission series of the local respective nodes and the local respective nodes is more than 0, deletes the broadcast message.
Optionally, the wireless data communication system further includes：
Third removing module, if it is described to represent that the transmission series of the broadcast message are less than for second judging result
The more New count of the transmission series of local corresponding informance or the local corresponding informance is equal to 0, deletes the local corresponding informance.
Optionally, the wireless data communication system further includes：
Third judgment module for judging whether the transmission series of the broadcast message are more than given threshold, obtains third
Judging result；
4th removing module, if it is described to represent that the transmission series of the broadcast message are more than for the third judging result
Given threshold deletes the broadcast message.
According to specific embodiment provided by the invention, the invention discloses following technique effects：
The present invention provides a kind of wireless data communication method and system, the wireless data communication method includes：Channel
Node obtains the broadcast message of surroundings nodes；The broadcast message include frequency, node identification, transmission series, data information and
More New count；Sim cards are provided in the channel node；The broadcast message of the surroundings nodes is sent by wireless communication mode
To the channel node, the wireless communication mode is the sending method without sim cards；Store each broadcast message；
Each broadcast message is sent by the way of sim cards to data center.Wireless data communication method provided by the invention only needs
It sets sim cards that can complete the real time data transmission of the node on channel node, reduces the quantity of sim cards, reduce
The data traffics of sim cards.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the flow chart of the wireless data communication method of the embodiment of the present invention 1；
Fig. 2 is the structure connection figure of the wireless data communication system of the embodiment of the present invention 2.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of wireless data communication method and systems, reduce the quantity of sim cards, reduce
Cost.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Embodiment 1
Fig. 1 is the flow chart of the wireless data communication method of the embodiment of the present invention 1, as shown in Figure 1, the wireless data leads to
Communication method includes：
Step 101, channel node obtains the broadcast message of surroundings nodes；The broadcast message include frequency, node identification,
Transmission series, data information and more New count；Sim cards are provided in the channel node；The broadcast message of the surroundings nodes
The channel node is sent to by wireless communication mode, the wireless communication mode is the sending method without sim cards.
Optionally, the channel node further includes after obtaining the broadcast message of surroundings nodes：
To the update of the broadcast message, count is incremented；
1 is added to the transmission series of the broadcast message.
Step 102, each broadcast message is stored.
Step 103, each broadcast message is sent by the way of sim cards to data center.
Optionally, it is further included before each broadcast message of storage：
Judge whether the frequency of the broadcast message is in own frequency in same frequency section, obtain the first judgement knot
Fruit；The own frequency represents the frequency of the channel node；
If first judging result represents that the frequency of the broadcast message is in different frequencies from the own frequency
The broadcast message is deleted in section.
Optionally, it is further included before each broadcast message of storage：
Judge whether the transmission series of the broadcast message more than or equal to the transmission series of local corresponding informance and described
The more New count of ground corresponding informance is more than 0, obtains the second judging result；The frequency of the local corresponding informance is believed with the broadcast
The frequency of breath is identical, and the node identification of the local corresponding informance is identical with the nodal information of the broadcast message；The local
Corresponding informance is stored in the channel node；
If second judging result represents that the transmission series of the broadcast message are more than or equal to the local corresponding informance
Transmission series and the more New count of the local corresponding informance be more than 0, delete the broadcast message.
Optionally, it is further included before each broadcast message of storage：
If second judging result represents that the transmission series of the broadcast message are less than the biography of the local corresponding informance
The more New count of graded number or the local corresponding informance is equal to 0, deletes the local corresponding informance.
Optionally, the channel node further includes after obtaining the broadcast message of surroundings nodes：
Judge whether the transmission series of the broadcast message are more than given threshold, obtain third judging result；
If the third judging result represents the transmission series of the broadcast message and is more than the given threshold, described in deletion
Broadcast message.Each node can set the limitation of transmission series, when the data transfer series for finding to receive is more than particular value,
This data can be abandoned, does not do subsequent processing, can ensure that the data package size between node is restricted in this way.
A kind of wireless data communication method is present embodiments provided, the wireless data communication method includes：Channel node
Obtain the broadcast message of surroundings nodes；The broadcast message includes frequency, node identification, transmission series, data information and update
It counts；Sim cards are provided in the channel node；The broadcast message of the surroundings nodes is sent to institute by wireless communication mode
Channel node is stated, the wireless communication mode is the sending method without sim cards；Store each broadcast message；Using
The mode of sim cards sends each broadcast message to data center.Wireless data communication method provided in this embodiment only need to be
It sets sim cards that can complete the real time data transmission of the node on channel node, reduces the quantity of sim cards, reduce
The data traffic of sim cards.
The present embodiment additionally provides the communications protocol that channel node carries out data communication with surroundings nodes, and specifically defining should
How broadcast data is stored.Wireless data communication method using the present invention can not only reduce the quantity of sim cards,
The EMS memory occupation of channel node can also be reduced.
Embodiment 2
The present invention also provides a kind of wireless data communication systems.Fig. 2 is the wireless data communication system of the embodiment of the present invention 2
The structure connection figure of system, as shown in Fig. 2, the wireless data communication system includes：
Acquisition module 201 obtains the broadcast message of surroundings nodes for channel node；The broadcast message include frequency,
Node identification, transmission series, data information and more New count；Sim cards are provided in the channel node；The surroundings nodes
Broadcast message is sent to the channel node by wireless communication mode, and the wireless communication mode is without sim cards
Sending method；
Memory module 202, for storing each broadcast message；
Sending module 203, for sending each broadcast message by the way of sim cards to data center.
Optionally, the wireless data communication system further includes：
First update module, for the update to the broadcast message, count is incremented；
Second update module adds 1 for the transmission series to the broadcast message.
First judgment module, for judging whether the frequency of the broadcast message is in same frequency section with own frequency
It is interior, obtain the first judging result；The own frequency represents the frequency of the channel node；
First removing module, if representing the frequency of the broadcast message and itself frequency for first judging result
Rate is in different frequency separations, deletes the broadcast message.
Second judgment module, for judging whether that the transmission series of the broadcast message are more than or equal to local corresponding informance
The more New count of transmission series and the local corresponding informance is more than 0, obtains the second judging result；The local corresponding informance
Frequency is identical with the frequency of the broadcast message, and the node identification and the node of the broadcast message of the local corresponding informance are believed
Manner of breathing is same；The local corresponding informance is stored in the channel node；
Second removing module, if the transmission series for representing the broadcast message for second judging result are more than or equal to
The more New count of the transmission series of the local respective nodes and the local respective nodes is more than 0, deletes the broadcast message.
Third removing module, if it is described to represent that the transmission series of the broadcast message are less than for second judging result
The more New count of the transmission series of local corresponding informance or the local corresponding informance is equal to 0, deletes the local corresponding informance.
Third judgment module for judging whether the transmission series of the broadcast message are more than given threshold, obtains third
Judging result；
4th removing module, if it is described to represent that the transmission series of the broadcast message are more than for the third judging result
Given threshold deletes the broadcast message.
Embodiment 2 is the system of the method for the wireless data communication of corresponding embodiment 1, therefore, nothing provided in this embodiment
Line data communication system can also reach the quantity for reducing sim cards, reduce the technique effect of the data traffic of sim cards.
Meanwhile embodiment 2 additionally provides the communications protocol that channel node carries out data communication with surroundings nodes, it is specific to limit
The storage mode of broadcast data.Wireless data communication method using the present invention can not only reduce the quantity of sim cards, may be used also
To reduce the EMS memory occupation of channel node.
In the process of running, it is contemplated that, can there are multiple projects, each item destination nodes in a regional Different field
Quantity is different, but position between node and covering may overlap each other, and in order to distinguish the node between project, avoid mutually
Interference, device node are identified with two parts composition：[group mark (Group Id)+node i d].It, can be mutual between node in group
Mutually transmit record data and routing iinformation.Group mark is the data of 8 bytes, and node i d is 1 byte data, in each group at most
There are 255 nodes.If the number of nodes of same project is more than 255, it is contemplated that using multiple groupings.
All nodes all support local local wireless communication, and the node for having part supports GPRS communication ports, and equipment can
In real-time process, GPRS communication modules are needed to configure according to scene.In this way, node is just divided into two types：
1) local node：It supports local sensor access, and only supports local wireless communication.
2) channel node：On the basis of local node, increase pluggable GPRS communication modules and communication is supported.
Group interior nodes carry out data sharing communication using broadcast and relay routing policy.
(1) class frequency selects
In implementation process, the channel selection of node local communication differs as possible between different groups, can reduce in this way
The communication contention aware of group intermediate node, improving performance.
(2) data broadcasting in group
Group interior nodes carry out the broadcast of data according to certain strategy.Since local each node communication is equality
, also, the data volume of node itself is again shorter and smaller, and wireless air-time is short.By the mutual broadcast of all nodes, finally
The data of the periphery interdependent node of each node can all exist in intra class correlation in the node of local unicom.
(3) data store in group
Due to group internal segment points at most only 255, and the data of each node acquisition are also smaller, and each node is deposited
The data committed memory for storing up other nodes is also small.
The data mode of 1 broadcast data of table
Each node may receive the broadcast data of all mid-side nodes, and table 1 is the broadcast data that each node is sent.Data
Send the packet marking of 8 bytes first, behind recur updating the data for this node itself or other nodes.Per number
According to 14 bytes of occupancy.
In each 14 bytes of node data, first character section is other communication nodes id, and second is to transmit routing
Series is followed by the data information (gathered data of such as sensor) of 12 bytes.
In each node memory, all there are the interdependent node data shown in table 2, each node occupies 16 bytes of a line,
Preceding 14 bytes are respectively node i d (1 byte), data routing (1 byte), node data (12 byte).And in last 1 byte
Store the more New count of data, 1 byte representation data mode.
2 intra-node table data store of table
| Node i d 1byte | Data route 1 byte | Node gathered data 12bytes | More 1 byte of New count | 1 byte of state |
| Node i d 1byte | Data route 1 byte | Node gathered data 12bytes | More 1 byte of New count | 1 byte of state |
| Node i d 1byte | Data route 1 byte | Node gathered data 12bytes | More 1 byte of New count | 1 byte of state |
Since each packet node number is no more than 255, then each intra-node data storage, which occupies, is also no more than 255*
16=4080 bytes, this does not have pressure for the microcontroller of current middle-grade level.
When receiving a new node data, more New count is set as 255, and with the timing heartbeat inside equipment
(such as 1 second) constantly successively decreases, and server-side can judge that data update time or determining data have by node updates count value
Effect property.
The data of node itself are at first of memory table, by internal timing collecting sensor related data, and directly
First record of update, the data routing=0 of first record, more New count is close to 255.
Each node can carry out different processing when receiving periphery node data there are three types of situation：
1) the local data without this node are found, then is stored and more New count 255 is set, while to transmitting grade
Number carries out adding 1, and data mode is does not send state.
2) if it find that the transmission series of corresponding node data oneself locally preserved are bigger than what is newly received, then to this data
Covering legacy data, more New count 255 are collected, while transmission series are carried out to add 1, data mode is does not send.
3) if it find that the data series oneself locally preserved is smaller than the data received, and local update counts and is more than 0,
This data of surface have been most efficiently paths, and data are effective in therein, abandon the data received do not do it is any.Such as
Fruit finds to represent that local data fail already, then using processing side 2) equal to 0 locally to node data more New count
Formula carries out.
When node transmission data state, node checks self EMS memory table searches the data not sent in memory record, and
The communication format shown in table 1 is combined into, and after overseas broadcast transmission, the data for changing node send state.
According to the more than means of communication, the node in each group can not only receive other number of nodes that periphery can go directly
According to the node data that intercommunication is capable of on other node peripheries can also be received.Meanwhile form tables of data, tables of data in intra-node
In it is known that data renewal time, by details such as the quantity of intermediate transfer node.
In implementation process of constructing at the scene, when entering debugging mode after being powered, it can be looked by node digital interface
See that node collects all data and routing inventory.It may be inserted into GPRS communication modules at this time, be connected to mating soft of data center
After part system, system can analyze the situation for holding whole network on the whole, and carry out some parameter settings to this node,
Such as series limits；Or judge whether present node can retain this GPRS communication module as channel node.
Theoretically, if the intercommunication that all nodes in a grouping can be direct or indirect, this grouping is only
A channel node is needed to communicate with inspection center system.It that is to say and can be achieved with maximum 255 using a mobile phone card
The data collection effort of node.
And in actual moving process, since node is by mounting distance, the influence of on-site wireless communication environment may be formed
Several node intercommunication set.Each node set at least needs a channel node and data center's intercommunication.
In order to facilitate the field conduct of acquisition monitoring point, using pluggable GPRS communication modules, scene can be caused to appoint
What node becomes channel node or carries out the adjustment of subsequent channel node.
For the node in a node intercommunication set, if quantity is bigger, it is contemplated that using multiple channel sections
Point, to promote the data transmission efficiency and reliability that node collects data center.
, can be by the allotment of data center when some channel GPRS, which communicates, to break down, related impacted other
Node can upload data by other channel nodes at once, can greatly promote the reliability of system in this way.
In a group, data center's software systems can only by channel node to all nodes carry out data acquisition and
Management and control.Wherein the simplest use strategy is that data center obtains the associated section of each channel intra-node by channel node
Point data and routing condition.By certain optimisation strategy, in most of time, in the data that limit each channel node
It passes, the Data duplication of individual node is avoided to transmit, reduce flow.
Since GPRS mobile phone cartoon letters have certain flow restriction every month, channel node in special circumstances in addition to (such as adjusting
In examination), all it is that the passive software instruction for waiting for data center is assigned in day-to-day operation.In this way, the flow control for channel node
System, rests in data center completely.Data center can be according to the quantity, the quantity of channel node, each channel section of collection point
The factors such as the mobile phone card flow restriction of point, optimize and revise data acquisition frequency.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.For system disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related part is said referring to method part
It is bright.
Specific case used herein is expounded the principle of the present invention and embodiment, and above example is said
The bright method and its core concept for being merely used to help understand the present invention；Meanwhile for those of ordinary skill in the art, foundation
The thought of the present invention, in specific embodiments and applications there will be changes.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of wireless data communication method, which is characterized in that the wireless data communication method includes：
Channel node obtains the broadcast message of surroundings nodes；The broadcast message includes frequency, node identification, transmission series, number
It is believed that breath and more New count；Sim cards are provided in the channel node；The broadcast message of the surroundings nodes passes through wireless telecommunications
Mode is sent to the channel node, and the wireless communication mode is the sending method without sim cards；
Store each broadcast message；
Each broadcast message is sent by the way of sim cards to data center.
2. wireless data communication method according to claim 1, which is characterized in that the channel node obtains surroundings nodes
Broadcast message after further include：
To the update of the broadcast message, count is incremented；
1 is added to the transmission series of the broadcast message.
3. wireless data communication method according to claim 1, which is characterized in that each broadcast message of the storage it
Before further include：
Judge whether the frequency of the broadcast message is in own frequency in same frequency section, obtain the first judging result；
The own frequency represents the frequency of the channel node；
If first judging result represents that the frequency of the broadcast message is in different frequency separations from the own frequency,
Delete the broadcast message.
4. wireless data communication method according to claim 1, which is characterized in that each broadcast message of the storage it
Before further include：
Judge whether the broadcast message transmission series be more than or equal to local corresponding informance transmission series and the local it is right
The more New count of information is answered to be more than 0, obtains the second judging result；The frequency and the broadcast message of the local corresponding informance
Frequency is identical, and the node identification of the local corresponding informance is identical with the nodal information of the broadcast message；It is described local corresponding
Information is stored in the channel node；
If second judging result represents that the transmission series of the broadcast message are more than or equal to the biography of the local corresponding informance
The more New count of graded number and the local corresponding informance is more than 0, deletes the broadcast message.
5. wireless data communication method according to claim 4, which is characterized in that each broadcast message of the storage it
Before further include：
If second judging result represents that the transmission series of the broadcast message are less than the transmission grade of the local corresponding informance
The more New count of several or described local corresponding informance is equal to 0, deletes the local corresponding informance.
6. wireless data communication method according to claim 1, which is characterized in that the channel node obtains surroundings nodes
Broadcast message after further include：
Judge whether the transmission series of the broadcast message are more than given threshold, obtain third judging result；
If the third judging result represents that the transmission series of the broadcast message are more than the given threshold, the broadcast is deleted
Information.
7. a kind of wireless data communication system, which is characterized in that the wireless data communication system includes：
Acquisition module obtains the broadcast message of surroundings nodes for channel node；The broadcast message includes frequency, node mark
Knowledge, transmission series, data information and more New count；Sim cards are provided in the channel node；The broadcast letter of the surroundings nodes
Breath is sent to the channel node by wireless communication mode, and the wireless communication mode is the sender without sim cards
Formula；
Memory module, for storing each broadcast message；
Sending module, for sending each broadcast message by the way of sim cards to data center.
8. wireless data communication system according to claim 7, which is characterized in that the wireless data communication system also wraps
It includes：
First update module, for the update to the broadcast message, count is incremented；
Second update module adds 1 for the transmission series to the broadcast message.
9. wireless data communication system according to claim 7, which is characterized in that the wireless data communication system also wraps
It includes：
First judgment module, for judging whether the frequency of the broadcast message is in own frequency in same frequency section,
Obtain the first judging result；The own frequency represents the frequency of the channel node；
First removing module, if being represented at frequency and the own frequency of the broadcast message for first judging result
In different frequency separations, the broadcast message is deleted.
10. wireless data communication system according to claim 7, which is characterized in that the wireless data communication system is also
Including：
Second judgment module, for judging whether that the transmission series of the broadcast message are more than or equal to the transmission of local corresponding informance
The more New count of series and the local corresponding informance is more than 0, obtains the second judging result；The frequency of the local corresponding informance
It is identical with the frequency of the broadcast message, the local node identification of corresponding informance and the nodal information phase of the broadcast message
Together；The local corresponding informance is stored in the channel node；
Second removing module, if it is described to represent that the transmission series of the broadcast message are more than or equal to for second judging result
The more New count of the transmission series of local respective nodes and the local respective nodes is more than 0, deletes the broadcast message.
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Citations (4)
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| CN101859478A (en) * | 2010-04-29 | 2010-10-13 | 河海大学 | Wireless sensor network-based slope real-time security monitoring system |
| CN101873273A (en) * | 2010-07-08 | 2010-10-27 | 华为技术有限公司 | Routing forwarding method, routing node and wireless communication network |
| CN102098801A (en) * | 2010-12-27 | 2011-06-15 | 电子科技大学 | Method for acquiring wireless sensor network data of farmland ecological environment information |
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