CN109889362B - Data communication and processing method, device and system - Google Patents
Data communication and processing method, device and system Download PDFInfo
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Abstract
The invention provides a data communication and processing method, a device and a system, wherein the method comprises the following steps: the remote data processing device receives the acquired data from the wireless sensor network module; the remote data processing device compares the received data with pre-stored standard data to determine whether the received data is abnormal, and when the received data is abnormal, the remote data processing device sends the abnormal data to a predetermined intelligent terminal. The invention is based on the wireless sensor network technology, realizes the wireless communication of data, does not need wiring, and saves manpower and material resources; and through the interaction between the remote data processing device and the intelligent terminal, the data processing is realized, and various data are more effectively presented to the user.
Description
Technical Field
The invention relates to the technical field of data communication, in particular to a data communication and processing method, device and system.
Background
In the related art, when a certain target is monitored in a set monitoring area, detection is usually performed by manually holding detection equipment, and then detection data is recorded into a system, so that the data collection mode is troublesome and low in efficiency. In addition, how to process various data obtained so as to present various data to the user more effectively is also a problem.
The wireless sensor network is a network formed by a large number of wireless sensor nodes in a self-organizing manner, has the characteristics of high sensor node density, frequent network topology change, limited node power, computing capacity and data storage capacity and the like, and has wide application prospects in the fields of environmental monitoring military, medical health, household intelligent monitoring and other commercial fields. However, the existing wireless sensor network still has more defects due to the limited energy of the sensor nodes.
Disclosure of Invention
In order to solve the problems, the invention provides a data communication and processing method, a device and a system.
The purpose of the invention is realized by adopting the following technical scheme:
an embodiment of the first aspect of the present invention provides a data communication and processing method, including:
the remote data processing device receives the acquired data from the wireless sensor network module;
the remote data processing device compares the received data with pre-stored standard data to determine whether the received data is abnormal, and when the received data is abnormal, the remote data processing device sends the abnormal data to a predetermined intelligent terminal;
the wireless sensor network module comprises a plurality of sensor nodes and sink nodes, the sensor nodes are responsible for acquiring data, the sink nodes are responsible for collecting the data acquired by the sensor nodes, and the remote data processing device is in communication connection with the sink nodes.
The embodiment is based on the wireless sensor network technology, realizes the wireless communication of data and the real-time monitoring of the data, does not need wiring, and saves manpower and material resources; through the interaction of the remote data processing device and the intelligent terminal, the data required by the user can be more effectively presented to the user in real time.
In one implementation, after the step of the remote data processing device receiving the collected data from the wireless sensor network module, the method further comprises:
the remote data processing device saves the received data;
the remote data processing device responds to an access request of the intelligent terminal and provides an operation interface of the stored data to the intelligent terminal;
and the remote data processing device responds to the operation of the intelligent terminal based on the operation interface.
In one implementation, the method further comprises:
and when the received data is abnormal, the remote data processing device displays alarm information.
The embodiment of the second aspect of the invention provides a data communication and processing method, which comprises the following steps:
the wireless sensor network module acquires data;
the wireless sensor network module sends acquired data to the remote data processing device, the remote data processing device compares the acquired data with pre-stored standard data to determine whether the acquired data is abnormal or not, and the remote data processing device sends the abnormal data to a predetermined intelligent terminal when the acquired data is abnormal;
the wireless sensor network module comprises a plurality of sensor nodes responsible for acquiring data and a sink node responsible for converging the data acquired by each sensor node, and the sink node is in communication connection with the remote data processing device.
A third aspect of the present invention provides a data communication and processing apparatus, including a receiving module, a communication module, a processing module, and a control module, wherein:
the receiving module is used for receiving the acquired data from the wireless sensor network module;
the processing module is used for comparing the received data with pre-stored standard data to determine whether the received data is abnormal or not and acquiring abnormal data;
the control module is used for controlling the communication module to send the abnormal data to a predetermined user terminal;
the wireless sensor network module comprises a plurality of sensor nodes and a sink node, wherein the sensor nodes are responsible for acquiring data, the sink node is responsible for collecting the data acquired by the sensor nodes, and the communication module is used for establishing communication connection between the sink node and the user terminal.
In a mode of possible implementation of the third aspect of the present invention, the apparatus further includes a storage module, configured to store the received data.
In one possible implementation mode of the third aspect of the invention, the control module is further configured to:
responding to an access request of the intelligent terminal, and controlling the communication module to provide an operation interface of the stored data to the intelligent terminal;
and responding to the operation of the intelligent terminal based on the operation interface.
In a possible mode of the third aspect of the present invention, the apparatus further includes an alarm module configured to display alarm information when the received data is abnormal.
A fourth aspect of the present invention provides a data communication and processing system, which includes a remote data processing device, a wireless sensor network module and an intelligent terminal, wherein the remote data processing device, the wireless sensor network module and the intelligent terminal are used for executing the data communication and processing method.
The invention has the beneficial effects that: based on the wireless sensor network technology, the wireless communication of data is realized, wiring is not needed, and manpower and material resources are saved; and through the interaction between the remote data processing device and the intelligent terminal, the data processing is realized, and various data are more effectively presented to the user.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is a flow diagram of a data communication and processing method of an exemplary embodiment of the present invention;
FIG. 2 is a flow diagram of a data communication and processing method according to another exemplary embodiment of the present invention;
FIG. 3 is a block diagram illustrating the structure of a data communication and processing device in accordance with an exemplary embodiment of the present invention;
fig. 4 is a block schematic diagram of a data communication and processing system in accordance with an exemplary embodiment of the present invention.
Reference numerals:
the system comprises a receiving module 1, a communication module 2, a processing module 3, a control module 4, a remote data processing device 10, a wireless sensor network module 20 and an intelligent terminal 30.
Detailed Description
The invention is further described with reference to the following examples.
Referring to fig. 1, a first embodiment of the present invention provides a data communication and processing method, including:
s1 the remote data processing device receives the collected data from the wireless sensor network module.
S2, the remote data processing device compares the received data with the pre-stored standard data to determine whether the received data is abnormal, and when the received data is abnormal, the remote data processing device sends the abnormal data to a predetermined intelligent terminal.
The wireless sensor network module comprises a plurality of sensor nodes and sink nodes, the sensor nodes are responsible for acquiring data, the sink nodes are responsible for collecting the data acquired by the sensor nodes, and the remote data processing device is in communication connection with the sink nodes.
The embodiment is based on the wireless sensor network technology, realizes the wireless communication of data, does not need wiring, and saves manpower and material resources; and through the interaction between the remote data processing device and the intelligent terminal, the data processing is realized, and various data are more effectively presented to the user.
In one implementation, after the step of the remote data processing device receiving the collected data from the wireless sensor network module, the method further comprises:
the remote data processing device saves the received data;
the remote data processing device responds to an access request of the intelligent terminal and provides an operation interface of the stored data to the intelligent terminal;
and the remote data processing device responds to the operation of the intelligent terminal based on the operation interface.
In one implementation, the method further comprises:
and when the received data is abnormal, the remote data processing device displays alarm information.
As shown in fig. 2, a second aspect embodiment of the present invention provides a data communication and processing method, including:
and S01 the wireless sensor network module collects data.
S02, the wireless sensor network module sends the collected data to the remote data processing device, the remote data processing device compares the collected data with pre-stored standard data to determine whether the collected data is abnormal, and the remote data processing device sends the abnormal data to a predetermined intelligent terminal when the collected data is abnormal;
the wireless sensor network module comprises a plurality of sensor nodes responsible for acquiring data and a sink node responsible for converging the data acquired by each sensor node, and the sink node is in communication connection with the remote data processing device.
As shown in fig. 3, a third aspect of the present invention provides a data communication and processing apparatus, which includes a receiving module 1, a communication module 2, a processing module 3 and a control module 4, wherein:
the receiving module 1 is used for receiving the acquired data from the wireless sensor network module;
the processing module 3 is used for comparing the received data with pre-stored standard data to determine whether the received data is abnormal or not and acquiring abnormal data;
the control module 4 is configured to control the communication module 2 to send the abnormal data to a predetermined user terminal;
the wireless sensor network module comprises a plurality of sensor nodes responsible for acquiring data and a sink node responsible for collecting the data acquired by each sensor node, and the communication module 2 is used for establishing communication connection with the sink node and the user terminal.
In a mode of possible implementation of the third aspect of the present invention, the apparatus further includes a storage module, configured to store the received data.
In a possible mode of implementation of the third aspect of the invention, the control module 4 is further configured to:
responding to an access request of the intelligent terminal, and controlling the communication module 2 to provide an operation interface of the stored data to the intelligent terminal;
and responding to the operation of the intelligent terminal based on the operation interface.
In a possible mode of the third aspect of the present invention, the apparatus further includes an alarm module configured to display alarm information when the received data is abnormal.
As shown in fig. 4, a fourth aspect of the present invention provides a data communication and processing system, which includes a remote data processing device 10, a wireless sensor network module 20 and a smart terminal 30, wherein the remote data processing device 10, the wireless sensor network module 20 and the smart terminal 30 are configured to perform the data communication and processing method as described above.
In the data communication and processing method, device and system, the sensor node selects a direct communication mode or an indirect communication mode to communicate with the sink node according to the distance from the sensor node to the sink node, the direct communication mode is that the sensor node directly sends acquired data to the sink node, and the indirect communication mode is that the sensor node sends the acquired data to a next hop node so as to forward the acquired data by the next hop node until the acquired data is sent to the sink node;
initially, when the distance between the sensor node and the sink node does not exceed a set distance threshold, the sensor node selects a direct communication mode; otherwise, the sensor node selects an indirect communication mode;
a predetermined period DeltaT0At each lapse of one period Δ T0The sink node collects the current residual energy and the initial energy of the sensor node directly communicating with the sink node, updates the distance threshold according to the current residual energy and the initial energy, and sends the updated distance threshold information to the sensor node directly communicating with the sink node; if the sensor is in direct communication with itIf the distance between the node and the sink node exceeds the updated distance threshold, the sensor node in direct communication with the sink node switches the communication mode into an indirect communication mode, selects a neighbor node as a successor node, and sends request information to the successor node so as to switch the communication mode of the successor node into a direct communication mode;
wherein, the updating formula of the distance threshold is as follows:
in the formula, DT' As an updated distance threshold, DTFor said set distance threshold, Qi0For the initial energy, Q, of the ith sensor node in direct communication with the sink nodeiIs the current residual energy, Ψ, of the ith sensor node in direct communication with the sink nodeiThe number of the sensor nodes which are directly communicated with the sink node is sigma, the sigma is a preset energy influence factor, and the value range of the sigma is [0.1, 0.2%]，RmaxSetting a preset maximum communication distance of the sensor nodes;
wherein, if the updating times of the distance threshold reach the time threshold, or the updated distance threshold is lower than RminIn time, the sink node will stop updating the distance threshold, RminThe communication distance is the preset minimum communication distance of the sensor node.
The embodiment changes the communication mode of the sensor nodes in direct communication with the sink node by periodically updating the distance threshold value of the sink node, and creatively sets an updating formula of the distance threshold value according to the current residual energy and initial energy of all the sensor nodes in direct communication with the sink node. According to the formula, the distance threshold value is gradually reduced along with the increase of the consumption of the energy of the sensor nodes around the sink node. The embodiment can effectively avoid the excessive energy consumption of the sensor nodes which are in direct communication with the sink node and far away from the sink node, and the load of the sensor nodes around the sink node can be effectively balanced through the mechanism that the sensor nodes select the relay node, so that the phenomenon of energy holes is reduced, the working period of the sensor nodes is prolonged integrally, and the stability of data communication is improved.
The neighbor nodes are other sensor nodes located in the communication range of the sensor nodes.
In one embodiment, the updated distance threshold information includes an average current energy remaining Qavg，
The selecting one neighbor node as a successor node includes:
(1) after the sensor node in direct communication with the sensor node switches the communication mode into an indirect communication mode, the sensor node calculates the weight of each neighbor node:
in the formula, WabThe weight, Q, of the b-th neighbor node of the sensor node a in direct communication therewithabIs the current remaining energy of the b-th neighbor node, f (Q)ab-Qavg) To determine the value function, when Qa％-QavgWhen f is greater than or equal to 0, f (Q)ab-Qavg) When Q is equal to 1ab-Qavg<0, f (Q)ab-Qavg)＝0；MaThe number of neighbor nodes of the sensor node a, MabNumber of neighbor nodes, M, for the b-th neighbor nodea∩MabThe number of neighbor nodes shared by the sensor node a and the b-th neighbor node, D (a, b) is the distance between the sensor node a and the b-th neighbor node, D (a, c) is the distance between the sensor node a and the c-th neighbor node, and lambda1、λ2Is a set weight coefficient and satisfies lambda1<λ2,λ1+λ2＝1；
(2) The sensor node selects the neighbor node with the maximum weight value as a successor node.
As a preferred embodiment, λ1＝0.4，λ2＝0.6。
The embodiment creatively sets a selection mechanism of the successor node, wherein a calculation formula of the weight is set. Through the weight calculation formula, the energy advantages and the position advantages of each neighbor node can be effectively measured, and therefore the sensor node is helped to select the best relay node as far as possible. The selection mechanism is utilized to determine the relay node, so that the load of the nodes around the sensor node can be optimally and effectively balanced, when the sensor node switches the communication mode into the indirect communication mode, the adverse effect of mode conversion on data communication is reduced as much as possible, and the stability of the operation of the wireless sensor network is ensured.
In one embodiment, when a sensor node selects a next hop node, a request is sent to a neighbor node closer to a sink node relative to the sensor node, the neighbor node receiving the request calculates its cache congestion degree, if the cache congestion degree is lower than a preset cache congestion degree threshold, the neighbor node sends feedback information to the sensor node sending the request, the sensor node selects a neighbor node corresponding to the received first feedback information as a next hop node, and the cache congestion degree is calculated according to the following formula:
in the formula, muhjIndicating the cache congestion degree, L, of the jth neighbor node receiving the request of the sensor node hhjThe current cache size L occupied by the cached data packet for the jth neighbor nodehj0The initial buffer space size of the jth neighbor node, D (h, j) is the distance between the sensor node h and the jth neighbor node, and D0Is a preset data packet forwarding unit distance, gamma is a preset data congestion delay factor based on the distance, and the value range of gamma is [0.2, 0.3%]。
The embodiment innovatively sets a selection mechanism of the next hop node, wherein the probability of the cache congestion degree and a calculation formula thereof are firstly provided. In the mechanism, a neighbor node receiving a request of a sensor node calculates the cache congestion degree of the neighbor node, and determines whether to select a next hop node of the sensor node according to a comparison result of the cache congestion degree of the neighbor node and a preset cache congestion degree threshold. According to the embodiment, the sensor node can select the neighbor node which is short in distance and high in cache efficiency as the next hop node as far as possible, the probability that the next hop node loses packets due to too slow data cache is reduced, and the reliability and the efficiency of data communication are improved.
It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the system is divided into different functional modules to perform all or part of the above described functions. For the specific working process of the system and the terminal described above, reference may be made to the corresponding process in the foregoing method embodiment, which is not described herein again.
From the above description of embodiments, it is clear for a person skilled in the art that the embodiments described herein can be implemented in hardware, software, firmware, middleware, code or any appropriate combination thereof. For a hardware implementation, a processor may be implemented in one or more of the following units: an application specific integrated circuit, a digital signal processor, a digital signal processing system, a programmable logic device, a field programmable gate array, a processor, a controller, a microcontroller, a microprocessor, other electronic units designed to perform the functions described herein, or a combination thereof. For a software implementation, some or all of the procedures of an embodiment may be performed by a computer program instructing associated hardware. In practice, the program may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. The computer-readable medium can include, but is not limited to, random access memory, read only memory images, electrically erasable programmable read only memory or other optical disk storage, magnetic disk storage media or other magnetic storage systems, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. A data communication and processing method, comprising the steps of:
the remote data processing device receives the acquired data from the wireless sensor network module;
the remote data processing device compares the received data with pre-stored standard data to determine whether the received data is abnormal, and when the received data is abnormal, the remote data processing device sends the abnormal data to a predetermined intelligent terminal;
the wireless sensor network module comprises a plurality of sensor nodes responsible for acquiring data and a sink node responsible for converging the data acquired by each sensor node, and the remote data processing device is in communication connection with the sink node;
the sensor node selects a direct communication mode or an indirect communication mode to communicate with the sink node according to the distance from the sink node, wherein the direct communication mode is that the sensor node directly sends acquired data to the sink node, and the indirect communication mode is that the sensor node sends the acquired data to a next hop node so as to forward the acquired data by the next hop node until the acquired data is sent to the sink node;
initially, when the distance between the sensor node and the sink node does not exceed a set distance threshold, the sensor node selects a direct communication mode; otherwise, the sensor node selects an indirect communication mode;
a predetermined period DeltaT0At each lapse of one period Δ T0The sink node collects the current residual energy and the initial energy of the sensor node directly communicating with the sink node, updates the distance threshold according to the current residual energy and the initial energy, and sends the updated distance threshold information to the sensor node directly communicating with the sink node; if the distance between the sensor node in direct communication with the sensor node and the sink node exceeds the updated distance threshold, the sensor node in direct communication with the sensor node switches the communication mode to an indirect communication mode, selects a neighbor node as a successor node, and sends request information to the successor node so that the communication mode of the successor node is switched to a direct communication mode;
wherein, the updating formula of the distance threshold is as follows:
in the formula, DT' As an updated distance threshold, DTFor said set distance threshold, Qi0For the initial energy, Q, of the ith sensor node in direct communication with the sink nodeiIs the current residual energy, Ψ, of the ith sensor node in direct communication with the sink nodeiThe number of the sensor nodes which are directly communicated with the sink node is sigma, the sigma is a preset energy influence factor, and the value range of the sigma is [0.1, 0.2%]，RmaxSetting a preset maximum communication distance of the sensor nodes;
wherein, if the updating times of the distance threshold reach the time threshold, or the updated distance threshold is lower than RminIn time, the sink node will stop updating the distance threshold, RminThe communication distance is the preset minimum communication distance of the sensor node.
2. The data communication and processing method of claim 1, wherein after the step of the remote data processing device receiving the collected data from the wireless sensor network module, the method further comprises:
the remote data processing device saves the received data;
the remote data processing device responds to an access request of the intelligent terminal and provides an operation interface of the stored data to the intelligent terminal;
and the remote data processing device responds to the operation of the intelligent terminal based on the operation interface.
3. A method for data communication and processing, the method comprising:
the wireless sensor network module acquires data;
the wireless sensor network module sends acquired data to a remote data processing device, the remote data processing device compares the acquired data with pre-stored standard data to determine whether the acquired data is abnormal or not, and the remote data processing device sends the abnormal data to a predetermined intelligent terminal when the acquired data is abnormal;
the wireless sensor network module comprises a plurality of sensor nodes responsible for acquiring data and a sink node responsible for converging the data acquired by each sensor node, and the sink node is in communication connection with the remote data processing device;
the sensor node selects a direct communication mode or an indirect communication mode to communicate with the sink node according to the distance from the sink node, wherein the direct communication mode is that the sensor node directly sends acquired data to the sink node, and the indirect communication mode is that the sensor node sends the acquired data to a next hop node so as to forward the acquired data by the next hop node until the acquired data is sent to the sink node;
initially, when the distance between the sensor node and the sink node does not exceed a set distance threshold, the sensor node selects a direct communication mode; otherwise, the sensor node selects an indirect communication mode;
a predetermined period DeltaT0At each lapse of one period Δ T0The sink node collects the current residual energy and the initial energy of the sensor node directly communicating with the sink node, updates the distance threshold according to the current residual energy and the initial energy, and sends the updated distance threshold information to the sensor node directly communicating with the sink node; if the distance between the sensor node in direct communication with the sensor node and the sink node exceeds the updated distance threshold, the sensor node in direct communication with the sensor node switches the communication mode to an indirect communication mode, selects a neighbor node as a successor node, and sends request information to the successor node so that the communication mode of the successor node is switched to a direct communication mode;
wherein, the updating formula of the distance threshold is as follows:
in the formula, DT' As an updated distance threshold, DTFor said set distance threshold, Qi0For the initial energy, Q, of the ith sensor node in direct communication with the sink nodeiIs the current residual energy, Ψ, of the ith sensor node in direct communication with the sink nodeiThe number of the sensor nodes which are directly communicated with the sink node is sigma, the sigma is a preset energy influence factor, and the value range of the sigma is [0.1, 0.2%]，RmaxSetting a preset maximum communication distance of the sensor nodes;
wherein, if the updating times of the distance threshold reach the time threshold, or the updated distance threshold is lower than RminIn time, the sink node will stop updating the distance threshold, RminThe communication distance is the preset minimum communication distance of the sensor node.
4. Data communication and processing apparatus, characterized by, the apparatus includes receiving module, communication module, processing module and control module, wherein:
the receiving module is used for receiving the acquired data from the wireless sensor network module;
the processing module is used for comparing the received data with pre-stored standard data to determine whether the received data is abnormal or not and acquiring abnormal data;
the control module is used for controlling the communication module to send the abnormal data to a predetermined user terminal;
the wireless sensor network module comprises a plurality of sensor nodes responsible for acquiring data and a sink node responsible for converging the data acquired by each sensor node, and the communication module is used for establishing communication connection with the sink node and the user terminal; the sensor node selects a direct communication mode or an indirect communication mode to communicate with the sink node according to the distance from the sink node, wherein the direct communication mode is that the sensor node directly sends acquired data to the sink node, and the indirect communication mode is that the sensor node sends the acquired data to a next hop node so as to forward the acquired data by the next hop node until the acquired data is sent to the sink node;
initially, when the distance between the sensor node and the sink node does not exceed a set distance threshold, the sensor node selects a direct communication mode; otherwise, the sensor node selects an indirect communication mode;
a predetermined period DeltaT0At each lapse of one period Δ T0The sink node collects the current residual energy and the initial energy of the sensor node directly communicating with the sink node, updates the distance threshold according to the current residual energy and the initial energy, and sends the updated distance threshold information to the sensor node directly communicating with the sink node; if the distance between the sensor node in direct communication with the sensor node and the sink node exceeds the updated distance threshold, the sensor node in direct communication with the sensor node switches the communication mode to an indirect communication mode, selects a neighbor node as a successor node, and sends request information to the successor node so that the communication mode of the successor node is switched to a direct communication mode;
wherein, the updating formula of the distance threshold is as follows:
in the formula, DT' As an updated distance threshold, DTFor said set distance threshold, Qi0For the initial energy, Q, of the ith sensor node in direct communication with the sink nodeiIs the current residual energy, Ψ, of the ith sensor node in direct communication with the sink nodeiThe number of the sensor nodes which are directly communicated with the sink node is sigma, the sigma is a preset energy influence factor, and the value range of the sigma is [0.1, 0.2%]，RmaxSetting a preset maximum communication distance of the sensor nodes;
wherein, if the updating times of the distance threshold reach the time threshold, or the updated distance threshold is lower than RminIn time, the sink node will stop updating the distance threshold, RminThe communication distance is the preset minimum communication distance of the sensor node.
5. Data communication and processing system, characterized in that it comprises a remote data processing device, a wireless sensor network module and an intelligent terminal for carrying out the data communication and processing method according to claim 1 or 3.
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