CN110139400A - A kind of silo ambient intelligence monitoring system design method - Google Patents
A kind of silo ambient intelligence monitoring system design method Download PDFInfo
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- CN110139400A CN110139400A CN201910432792.2A CN201910432792A CN110139400A CN 110139400 A CN110139400 A CN 110139400A CN 201910432792 A CN201910432792 A CN 201910432792A CN 110139400 A CN110139400 A CN 110139400A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 33
- 238000013461 design Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 12
- 238000012423 maintenance Methods 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 230000007774 longterm Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000007958 sleep Effects 0.000 description 1
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/12—Shortest path evaluation
- H04L45/122—Shortest path evaluation by minimising distances, e.g. by selecting a route with minimum of number of hops
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/46—Cluster building
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/04—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
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- General Physics & Mathematics (AREA)
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Abstract
The silo ambient intelligence monitoring system design method based on wireless sensor that the invention discloses a kind of.Specifically include that A. disposes wireless sensor node in silo, setting up wireless networks establish silo ambient intelligence Monitoring System Model；B. all the sensors node in region will be monitored and carry out sub-clustering, hierarchical design, balanced each meshed network load reduces energy loss；C. it is loaded according to the different communication of sensor node and distributes timeslice for it, adjustment time scheduling guarantees the reliability of data transmission；D. wireless sensor network is that the communication quality for adapting to frequently change carries out adaptive maintenance design, improves network reliability, completes the design of silo ambient intelligence monitoring system.This method has stronger scalability and robustness, at low cost, low in energy consumption, can be realized the environmental monitoring of silo long duration, and make relevant Decision in time by silo state and warning information real-time Transmission to control centre by wireless network transmissions.
Description
Technical Field
The invention relates to a design method of an intelligent granary environment monitoring system, and belongs to the fields of network transmission, network management systems and sensors.
Background
China is a large grain producing country, and the granary environment needs to be monitored in order to reduce loss in the grain storage process. Most domestic granary environmental monitoring still adopts traditional wired communication mode or manual mode, and this kind of monitoring mode running cost is high, system scalability is poor, the degree of efficiency, and the cable is arranged complicacy moreover, is difficult for later maintenance, and the cable is ageing easily, and data acquisition cycle is long, can not in time reflect the environmental status of granary, leads to the loss of manpower financial resources.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a granary environment intelligent monitoring system design method with strong expandability and robustness, which is low in cost and power consumption, can realize long-term continuous environment monitoring of a granary, transmits granary state and alarm information to a control center in real time through wireless network transmission, and makes relevant decisions in time.
The technical scheme adopted by the invention for solving the problems comprises the following steps:
A. deploying wireless sensor nodes in the granary, establishing a wireless network, and establishing an intelligent granary environment monitoring system model;
B. all sensor nodes in a monitoring area are subjected to clustering and layering design, network loads of all nodes are balanced, and energy loss is reduced;
C. allocating time slices for the sensor nodes according to different communication loads of the sensor nodes, adjusting time scheduling and ensuring the reliability of data transmission;
D. the wireless sensor network carries out self-adaptive maintenance design for adapting to frequently-changed communication quality, improves the network reliability and completes the design of the intelligent granary environment monitoring system.
The invention has the beneficial effects that:
under the condition that the granary environment monitoring is more and more important, the granary environment monitoring system has the advantages of strong expandability and robustness, low cost and low power consumption, can realize long-term continuous environment monitoring of the granary, transmits granary state and alarm information to a control center in real time through wireless network transmission, and makes relevant decisions in time.
Drawings
FIG. 1 is an overall flow chart of a design method of an intelligent granary environment monitoring system;
FIG. 2 is a diagram of a model structure of an intelligent monitoring system for granary environment;
fig. 3 is a flow chart of a wireless sensor node adjusting time scheduling.
Detailed Description
Referring to fig. 1-3, the method of the present invention comprises the steps of:
A. deploying wireless sensor nodes in the granary, establishing a wireless network, and establishing an intelligent granary environment monitoring system model;
deploying a wireless sensor node in a grain bin, the node comprising: the system comprises a temperature sensor, a humidity sensor, a singing sound sensor and the like, wherein all wireless sensors are controlled by a control center, and the control center can be used for dynamically allocating addresses to the sensors and adjusting network balance. The wireless sensor nodes can relay and widen the coverage range of the wireless network and relay information. When a certain node fails, the control center can perform positioning through refreshing. After each node is deployed, all modules are started to form a wireless network, for example, as shown in fig. 2, and an intelligent granary environment monitoring system model is established. The wireless sensor is set to collect data at regular time, and sends the collected sensing data to a nearby network coordinator, and then transmits the sensing data to the control center.
B. All sensor nodes in a monitoring area are subjected to clustering and layering design, network loads of all nodes are balanced, and energy loss is reduced;
(1) all sensor nodes in a monitoring area are subjected to clustering design, the sensor nodes in each granary are divided into a cluster, each cluster is provided with a main node, other nodes send acquired information to the main nodes, and the main nodes preprocess data and send the data to a nearby network coordinator. The main node is positioned at the position with the minimum distance from all other nodes of the cluster, so that the loss of network energy in the cluster is reduced;
(2) the sensor network system is designed in a layered mode and divided into the following steps: data layer, control layer, maintenance layer. The data layer is mainly composed of sensor nodes and is responsible for data acquisition, preprocessing and transmission in the granary. The control layer mainly comprises a control center, controls the network access of the whole system and improves the service interface. The maintenance layer comprises sensor maintenance, data transmission, task scheduling and the like and supports various communication transmission protocols. By layering the system, the network load caused by overlarge data volume is relieved, and the system safety is ensured.
C. Allocating time slices to the sensor nodes according to different communication loads of the sensor nodes, adjusting time scheduling, and ensuring the reliability of data transmission (as shown in fig. 3);
(1) the main node sends a command for collecting data, and other nodes calculate the time required by the other nodes to control command transmission, receive data and send data after receiving the command (see formula (2)), and report the time to the main node. The master node allocates a proper time slice for the other nodes according to different communication loads of the other nodes, and the activity time T of the nodes is as follows:
wherein,is a command packet acquisition time slice,being command data packetsThe time slice is sent out and the time slice is sent out,is the acquisition time slice at which the data packet is acquired,is the transmit time slice of the acquisition data packet. Therefore, the time scheduling is adjusted, and the reliability of data transmission is ensured.
(2) Node pointThe time required for the transmission of the control command of (1) is:
wherein,is a nodeThe set of child nodes of (a),is the time required for the control command transmission of the child node,is the time required to send a control command once. Node pointThe time to receive the data is:
wherein,and the parameters represent the parameters of the nodes for receiving the data for fusion. Node pointThe time for sending the data is as follows:
wherein,is the time that the node sends the self-produced data.
D. The wireless sensor network carries out self-adaptive maintenance design for adapting to frequently-changed communication quality, improves the network reliability and completes the design of the intelligent granary environment monitoring system.
Carrying out self-adaptive repair design on the wireless sensor network, checking all neighborhood nodes, and repairing two nodes in the neighborhood if two adjacent nodes and the neighborhood nodes form a network; if the source node is on the path of the neighborhood of a certain path in the network, and the nodes on the neighborhood path comprise the destination node, the path between two nodes of the neighborhood is repaired. In the repair state, the node acquires data only in the active time, and sleeps in other times. The repair delay of network transmission is:
wherein,is the active time of the node or nodes,is the duty cycle of the node, and i is the number of node operations. Through the self-adaptive maintenance design, the network reliability is improved, and the design of the intelligent granary environment monitoring system is completed.
In conclusion, the design method of the intelligent granary environment monitoring system is completed. The method has the advantages of strong expandability and robustness, low cost and low power consumption, can realize long-term continuous environmental monitoring of the granary, transmits the state and the alarm information of the granary to a control center in real time through wireless network transmission, and makes relevant decisions in time.
Claims (3)
1. A design method of an intelligent granary environment monitoring system is characterized by comprising the following steps: a wireless sensor network is established, and the reliability of data transmission and the network is ensured;
the method comprises the following steps:
deploying wireless sensor nodes in the granary, establishing a wireless network, and establishing an intelligent granary environment monitoring system model;
all sensor nodes in a monitoring area are subjected to clustering and layering design, network loads of all nodes are balanced, and energy loss is reduced;
allocating time slices for the sensor nodes according to different communication loads of the sensor nodes, adjusting time scheduling and ensuring the reliability of data transmission;
the wireless sensor network carries out self-adaptive maintenance design for adapting to frequently-changed communication quality, improves the network reliability and completes the design of the intelligent granary environment monitoring system.
2. The design method of the intelligent granary environment monitoring system according to claim 1, wherein: the step C comprises the following steps: the master node allocates a proper time slice for the other nodes according to different communication loads of the other nodes, and the activity time T of the nodes is as follows:
。
3. the design method of the intelligent granary environment monitoring system according to claim 1, wherein: the step D comprises the following steps: if two adjacent nodes and the adjacent nodes form a network, repairing the two adjacent nodes; if the source node is on the path of the neighborhood of a certain path in the network, and the nodes on the neighborhood path comprise the destination node, the path between two nodes of the neighborhood is repaired.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112969155A (en) * | 2021-02-02 | 2021-06-15 | 南京邮电大学 | Task scheduling method for forest fire detection sensor network node |
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