CN107147691A - A kind of heavy construction structure wireless sensor monitoring network system for improving sample frequency - Google Patents
A kind of heavy construction structure wireless sensor monitoring network system for improving sample frequency Download PDFInfo
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- CN107147691A CN107147691A CN201710192389.8A CN201710192389A CN107147691A CN 107147691 A CN107147691 A CN 107147691A CN 201710192389 A CN201710192389 A CN 201710192389A CN 107147691 A CN107147691 A CN 107147691A
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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
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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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
- H04L45/74—Address processing for routing
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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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/565—Conversion or adaptation of application format or content
- H04L67/5651—Reducing the amount or size of exchanged application data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
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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
Abstract
The invention discloses a kind of heavy construction structure wireless sensor monitoring network system for improving sample frequency, the system is made up of monitoring measuring point, routing node and acquisition terminal.Each measuring point and routing node are provided with independent id information, the id information and order number of correlation are contained in wireless telecommunications instruction, routing node and monitoring measuring point can be by recognizing that corresponding information is operated.Each measuring point can individually carry out multiple automatic data collection, and gathered data is directly stored into dynamic memory module without carrying out data back by wireless telecommunications.After collection terminates, measuring point ensures that data can efficiently be read and write by setting up corresponding index, and memory space is reduced by intelligent data compression and identification technology.The data being stored in dynamic memory module can return to acquisition terminal one by one by way of splitting packing, and the number of times of wireless telecommunications is greatly reduced, measuring point power consumption is reduced.
Description
Technical field
Sampled the present invention relates to a kind of wireless sensing monitoring network system of heavy construction structure, more particularly to a kind of improve
The heavy construction structure wireless sensor monitoring network system of frequency.
Background technology
Wireless sensing system will be dispersed in the biography of structure each several part by the way that sensing technology and Radio Transmission Technology are combined
Sensor is combined as a sensing network, only need to be in actual use that can be achieved inside building structure by a small number of signal transfers
Or the wireless signal all standing on surface, so as to unrestricted arrangement monitoring measuring point, it can then obtain more comprehensively complete
Site preparation health monitoring information.However, when wireless sensing system is applied in the health monitoring field of heavy construction structure, due to prison
The type and quantity for surveying measuring point are all a lot, and the distance between measuring point is generally quite remote, it is necessary to using specific adaptable
Wireless networking system could realize the signal all standing of heavy construction structure wireless health monitoring.
In existing wireless sensing system, usually using low-power scm as central processing unit, and single-chip microcomputer by
It is typically only capable to carry out single threaded operation in performance deficiency, therefore, gathered data and return data generally can not independent operatings.With this
Simultaneously as the requirement that data are relatively simple and system is to power consumption of wireless sensing system transmission is very strict therefore existing
Wireless sensing system generally uses self-defined home control network communication protocol, and the self-defined communications protocol of small-power it is maximum the drawbacks of be exactly
Synchronization can only receive or send an instruction in transmitting procedure, otherwise can cause to collide with each other between instruction.Therefore, it is existing
Wireless sensing system can only carry out data communication by way of traveling through communication, for small-scale monitoring structural health conditions, this
Planting data communication mode can also be applicable reluctantly, if the object of health monitoring is heavy construction structure, might have in system
Hundreds and thousands of different types of measuring points, the sample frequency for now reusing this communication mode then single measuring point will be significantly
Reduction.Now not only the synchronism of all measuring point gathered datas can not be effectively guaranteed, if single measuring point is wanted to realize high frequency
The dynamic monitoring of rate is also no longer possible.
The content of the invention
The purpose of the present invention is deposited by introducing address ID mechanism and ROM in wireless sensing health monitoring systems
Store up module, realize can high frequency collection heavy construction structure wireless sensing health monitoring network system.
The purpose of the present invention is achieved through the following technical solutions：A kind of heavy construction structure for improving sample frequency
Wireless sensing monitoring network system, the system is by some independent monitoring measuring points, some routing nodes for being used to communicate and collection
Terminal is made up of wireless network, and the monitoring measuring point is by dynamic sensitive acquisition module, low-power consumption central control module, channel radio
Interrogate module and dynamic memory module composition；The routing node is only by low-power consumption central control module and wireless communication module group
Into.
In order to ensure that radio sensing network normally can be communicated effectively under complicated latticed form, radio sensing network
In each monitoring measuring point and routing node be endowed independent the machine ID and unique higher level equipment ID, routing node is also
Possess multiple sub-route ID, any monitoring measuring point or routing node can be grasped by adding corresponding id information in instruction
Make without influenceing other measuring points or routing node.
The acquisition terminal sends wireless collection instruction, and monitoring measuring point and routing node are by judging that wireless collection is instructed
In id information and order number determine the response mode to instruction, monitoring measuring point can only respond the instruction from higher level ID,
Routing node can both forward the instruction from higher level ID to subordinate's sub-route and monitoring measuring point, can forward and be surveyed from monitoring again
The return data of point and subordinate's sub-route；Monitoring measuring point realizes multiple automatic data collection, and gathered data according to wireless collection instruction
After directly data can be preserved into dynamic memory module and without data back, so as to realize it is high-frequency repeatedly from
Dynamic collection and a large amount of wireless telecommunications operations need not be carried out, storage can be carried out immediately after terminating next time acquisition operations without waiting
Acquisition instructions next time.The dynamic memory inside modules set up corresponding storage index, and monitoring measuring point can be according to required sampling
Precision and gathered data type carry out intelligent data compression, and carry out intelligent rejecting to improper value and exceptional value, when progress data
When compression, data rejecting, data cover, storage index will be automatically updated.Dynamic memory module in measuring point is monitored when needing to read
In data when, data are carried out dividing processing by the central control module of measuring point according to storage index, and data packet back is given one by one
Acquisition terminal, significantly reduces wireless telecommunications number of times, reduces measuring point power consumption.
Further, the dynamic memory module is combined by multiple ROM storage chips and formed.
Further, in order to ensure dynamic acquisition data being stored and being read with effective, in measuring point
Low-power consumption central control module uses intelligent storage algorithm.Concrete operations are：After the order that measuring point receives automatic data collection and stored,
Central control module calculates required memory space according to times of collection first, and by the index address of memory space preserve to
In measuring point internal memory；Secondly, the initial data gathered every time is directly recorded in storage by central control module, until collection is finished
Central control module carries out Intelligent Recognition according to institute's gathered data feature to initial data afterwards, for improper value or deviates considerably from just
The data of normal scope are rejected；Then, central control module according to the type and required precision of gathered data to initial data
Carry out intelligent data compression and preserve, and the storage index after change is updated；Finally, measuring point receive fetch data life
Data are carried out according to corresponding index return to operation after order.Intelligent data compression algorithm can be according to required precision and gathered data class
Type carries out data compression, can either meet the requirement of monitoring before collection by setting rational precision to ensure and can save again
Substantial amounts of memory space；In addition, by being averaged for different types of Monitoring Data in different time ranges, by ripple
Dynamic initial data is decomposed into average value and pulsating quantity carries out storage and can also save memory space.
Further, after multiple automatic data collection terminates, it is necessary to acquisition terminal send specifically fetch data command, in
The first and last address of data, the data storage between first and last address is taken needed for centre control module is read out from dynamic memory module
Go out and be packaged into the packet of fixed size, packet is passed sequentially through into wireless communication module returns to acquisition terminal.
Further, after memory space is taken completely, central control module will be automatically storage at first once
Space is discharged, and is removed corresponding storage index value, is re-established new index value and store data into the region emptied
In, if monolithic index regional space is not enough, then it is automatically deleted multi-segment index regional space.
Further, after measuring point is monitored into dormancy power-down state, the data in dynamic memory module still will not lose
Lose, acquisition terminal if necessary to fetch again data only need to wake up monitoring measuring point after again send fetch data command.
The beneficial effects of the invention are as follows：In order to ensure complicated ring of the radio sensing network in heavy construction monitoring structural health conditions
Normal communication is remained in border, each measuring point and routing node are provided with independent id information, included in wireless telecommunications instruction
Related id information and order number, routing node and monitoring measuring point can by recognizing that corresponding information is operated.In order to carry
High measuring point sample frequency, each monitoring measuring point can individually carry out multiple automatic data collection, and gathered data is directly stored to dynamic and deposited
Store up without carrying out data back by wireless telecommunications in module, each measuring point can be with independent acquisition and data storage without traversal
Data are transmitted, therefore the sample frequency of measuring point can be greatly improved.After collection terminates, measuring point can be carried out to the initial data of collection
Intelligent management is operated, and is ensured that data can efficiently be read and write by setting up corresponding index, is compressed and known by intelligent data
Other technology reduces required memory space.Be stored in the data in dynamic memory module can split packing by way of,
Acquisition terminal is returned to one by one, the number of times of wireless telecommunications is greatly reduced, and reduces measuring point power consumption.The present invention is by introducing dynamic
Memory module, the data acquisition that can allow needs real-time radio to transmit data originally be changed into can the high frequency of real-time storage adopt automatically
Collection, data fetch data, the number of times of wireless telecommunications are not only greatly reduced successively again after collection is finished, and reduce system work(
Consumption, can also ensure that system can still provide for high-frequency collection, so as to obtain practical value more in the case where monitoring measuring point is more
High Monitoring Data.
Brief description of the drawings
Fig. 1 is wireless sensing health monitoring systems schematic diagram in the present invention；
Fig. 2 (a) is decision logic schematic diagram of the routing nodes of the present invention to command information；
Fig. 2 (b) is decision logic schematic diagram of the monitoring measuring point in the present invention to command information；
Fig. 3 is the comprising modules correlation schematic diagram of monitoring measuring point in the present invention；
Fig. 4 is the judgement flow frame diagram of different acquisition pattern in the present invention.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Complete health monitoring systems are made up of acquisition terminal, routing node and monitoring measuring point, between difference
Data communication is carried out by self-defined home control network communication protocol, the data that acquisition terminal is received are sent to monitoring number by Internet
According in cloud.System schematic is as shown in Figure 1.
The usual Distance-sensing measuring point of acquisition terminal is distant, and wireless signal is difficult to direct reception and registration, it is therefore desirable to use band
There is the routing node of order forwarding capability.In this case, it is every in multiple signal interference, system in order to avoid occurring in network
One monitoring measuring point or routing node are owned by the machine ID and higher level equipment ID, and routing node can also preserve multiple subordinates
The ID of routing node.Specific numberings of each ID comprising device type and equipment.The mark of instruction is transmitted between wireless communication module
Quasiconfiguaration include send instruction source device ID, under send instructions least significant end routing node ID, the ID of the target eventually pointed to
And the additional parameter that instruction is carried.
After acquisition terminal sends instruction of the target to monitor measuring point, instruction should be sent to monitoring measuring point to subordinate step by step,
Routing node will be judged the id information in instruction, and determines how information is forwarded.Now belong to data distributing
Instruction process, routing node judgment step will be as shown in Fig. 2 (a) in dotted line frame.When monitoring measuring point receives instruction, measuring point
Also the id information in order is judged, unrelated instruction will not be responded, specific deterministic process such as Fig. 2 (b) institutes
Show.When monitor measuring point tasks carrying finish need returned data when, measuring point will send reference format instruction, instruction should step by step on
Reach acquisition terminal, therefore routing node judges the id information to instruction, and determine this how process instruction.Now belong to
In return data process, routing node judgment step will be as shown in Fig. 2 (a) in solid box.
Each monitoring measuring point by dynamic sensitive acquisition module, low-power consumption central control module, wireless communication module and
Dynamic memory module is constituted.Low-power consumption central control module is mainly made up of single-chip microcomputer, it as whole measuring point core component,
Play a part of and other module communications and data processing；Dynamic sensitive acquisition module includes sensor and digital modulus of conversion
Various physical quantitys are converted into analog signal or data signal by block, sensor, and data-converting block is then by the signal collected
It is converted into the data signal needed for system；Wireless communication module is responsible for sending with receiving data, is entered using self-defined communications protocol
Row communication；Dynamic memory module uses low-power consumption storage chip, can be combined into Large Copacity by way of multiple chips of connecting and deposit
Storing up can still retain under chip, data storage powering-off state.The correlation of four main modulars is as shown in Figure 3.
When needing to carry out data acquisition, monitoring measuring point can determine different collection moulds by recognizing command information
In the case of formula, single acquisition, central control module driving sensing module collection and returned data, subsequent central control module according to
Instruction requires transmission or data storage, and single acquisition operation is so far completed.Under automatic data collection pattern, central control module, which starts, to follow
Ring drainage pattern, i.e., perform a single acquisition operation at regular intervals, and particular content is identical with single acquisition operation,
Interval time, automatic data collection terminated immediately after automatic data collection reaches times of collection as defined in instruction by instruction control.Specifically adopt
Integrated mode is as shown in Figure 4.
When using automatic data collection pattern and carrying out data storage using dynamic memory module, central control module root first
Required memory space is calculated according to times of collection, and the start-stop index address of memory space is preserved into measuring point internal memory；It
The initial data gathered every time is directly recorded in storage by central control module afterwards, and central control module will in gatherer process
The instruction in addition to stopping collection will not being responded, so as to ensure that sensor monitoring measuring point can stablize being acquired for high speed, is treated
Rear central control module is finished according to institute's gathered data feature to initial data data progress Intelligent Recognition to collection, for mistake
The data for being worth or deviating considerably from normal range (NR) are rejected；Then central control module is by the type according to gathered data and required
Precision carries out intelligent data compression to initial data and preserved, and the storage index after change is updated；Gatherer process knot
Shu Hou, when monitoring measuring point receives data retrieval instruction, the first and last storage address that central control module will be recorded before
The data of storage are divided into multiple packets, and packet is passed through into wireless communication module according to stereotyped command form by index
It is transferred to acquisition terminal.
Claims (3)
1. it is a kind of improve sample frequency heavy construction structure wireless sensor monitoring network system, it is characterised in that the system by
Some monitoring measuring points, some routing nodes and acquisition terminal are made up of wireless network, and the monitoring measuring point is adopted by dynamic sensitive
Collect module, low-power consumption central control module, wireless communication module and dynamic memory module composition；The routing node is only by low
Power consumption central control module and wireless communication module composition.
The monitoring measuring point and routing node include self-ID information and higher level's id information, and the routing node also includes subordinate
Sub-route id information.
The acquisition terminal sends wireless collection instruction, and monitoring measuring point and routing node are by judging in wireless collection instruction
Id information and order number determine the response mode to instruction, and monitoring measuring point can only respond the instruction from higher level ID, route
Node can both forward the instruction from higher level ID to subordinate's sub-route and monitoring measuring point, can forward again from monitoring measuring point and
The return data of subordinate's sub-route；Monitoring measuring point realizes multiple automatic data collection according to wireless collection instruction, and can after gathered data
Directly data are preserved into dynamic memory module and without data back, high-frequency repeatedly adopted automatically so as to realize
Collect and a large amount of wireless telecommunications operations need not be carried out.The dynamic memory inside modules set up corresponding storage index, monitor measuring point
Intelligent data compression can be carried out according to required sampling precision and gathered data type, and intelligence is carried out to improper value and exceptional value picking
Remove, when carrying out data compression, data rejecting, data cover, storage index will be automatically updated.Monitored when needing to read in measuring point
During data in dynamic memory module, data are carried out dividing processing by the central control module of measuring point according to storage index, one by one
Data packet back significantly reduces wireless telecommunications number of times to acquisition terminal, reduces measuring point power consumption.
2. a kind of heavy construction structure wireless sensor monitoring network system for improving sample frequency according to claim 1,
Formed characterized in that, the dynamic memory module is combined by multiple ROM storage chips.
3. a kind of heavy construction structure wireless sensor monitoring network system for improving sample frequency according to claim 1,
Characterized in that, after the memory space of the dynamic memory module is taken completely, central control module is automatically at first once
Memory space discharged, remove corresponding storage index value, re-establish new index value and store data into and empty
Region in, if monolithic index regional space is not enough, be then automatically deleted multi-segment index regional space.
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Cited By (1)
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| CN117857603A (en) * | 2024-03-05 | 2024-04-09 | 四川大学 | Monitoring method for physical security state of forest Internet of things terminal |
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