CN105208617B - Method for routing and communication device for fire-fighting and rescue network - Google Patents
Method for routing and communication device for fire-fighting and rescue network Download PDFInfo
- Publication number
- CN105208617B CN105208617B CN201510501337.5A CN201510501337A CN105208617B CN 105208617 B CN105208617 B CN 105208617B CN 201510501337 A CN201510501337 A CN 201510501337A CN 105208617 B CN105208617 B CN 105208617B
- Authority
- CN
- China
- Prior art keywords
- node
- fire
- data
- fighting
- base station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides the method for routing and communication device for fire-fighting and rescue network.Method for routing includes: to acquire fire-fighting data to be transmitted by wireless sensing member；It determines the next base station class node and node type of receivable fire-fighting data: if node type is fire fighting command car, using the node as destination node, determining the final route path from wireless sensing member to destination node；If node type is relay base station, the routed path of record wireless sensing member to the node, and transistroute path of the acquisition from the node to fire fighting command car, using fire fighting command car therein as destination node, to determine final route path；Data transmission method based on balance network load presses final route path transmission data.Communication device include each other can wireless telecommunications wireless sensing member and wireless coverage and trunking.Above-mentioned technology of the invention can find the Optimization route that can complete data transmission between all kinds of nodes, and transmission speed is fast, high-efficient, accuracy is high.
Description
Technical field
The present invention relates to route technology more particularly to a kind of method for routing and communication dress for fire-fighting and rescue network
It sets.
Background technique
With the development of society and economy, urban modernization degree is continuously improved, and building structure at different levels are complicated, type is more,
The burst accidents such as cities and towns fire incidence is increasingly soaring, also therewith to the modernization of fire-fighting rescue technique and the requirement of intelligence degree
It increases.
The characteristics of fire-fighting and rescue accident, is: first, disaster linksystem.Small disaster can cause linksystem disaster, cause big
Type and great disaster accident；Second, on-scene communication is unable to effective guarantee because disaster leads to live confusion, communication line and
Equipment may damage, so that fire-fighting and rescue commander's work smooth cannot carry out, or commander's lag；Third, personnel safety guarantee
First.When disaster occurs, the life security for ensureing fire-fighting and rescue personnel and live trapped person is first had to.Fire-fighting and rescue commander
Center is the informatization platform of fire-fighting rescue, and fire-fighting and rescue command centre and floor manager personnel when severe and great casualty occur
It can accurately and timely understand field condition, carry out scientific commander, reduce the loss of people's wealth.
There are the following problems in transmission for the data of fire-fighting and rescue at present:
When carrying out the transmission of fire-fighting and rescue data using cable communicating technology, affected by environment big, network structure is inflexible,
The wasting of resources and increased costs are easily caused, wiring is complicated, and communication line is easy to damage, and communication line maintenance cost is high.
Using wireless communication technique carry out fire-fighting and rescue data transmission when, because by based on armored concrete structure built
The serious shielding for building object causes signal seriously weak, in addition in environment signal interference, be difficult to transmit to fire fighting command car.It needs
The data to be transmitted include live fire-fighting and rescue personal information (position, thermal imaging and heartbeat etc.) and field conditions (smog, temperature
Degree, video and audio etc.), even if having access in cordless communication network, existing Wireless Mesh technology, WiFi technology and
ZigBee technology etc. is also affected to some extent and limits in the data transmission, and causes data cannot with normally reaching target
Point.
Summary of the invention
It has been given below about brief overview of the invention, in order to provide about the basic of certain aspects of the invention
Understand.It should be appreciated that this summary is not an exhaustive overview of the invention.It is not intended to determine pass of the invention
Key or pith, nor is it intended to limit the scope of the present invention.Its purpose only provides certain concepts in simplified form,
Taking this as a prelude to a more detailed description discussed later.
In consideration of it, the present invention provides method for routing and communication device for fire-fighting and rescue network, it is current to solve
Data are easy to be damaged, are not easy the problem of arriving at the destination in fire-fighting and rescue data transmission technology.
According to an aspect of the invention, there is provided a kind of method for routing for fire-fighting and rescue network, which is characterized in that
Node in the fire-fighting and rescue network includes acquisition class node and base station class node, wherein the acquisition class node includes nothing
Line sensing element, the base station class node include relay base station, fire fighting command car and fire-fighting and rescue command centre；It is described to be used for fire-fighting
The method for routing of rescue network includes: Step 1: acquiring fire-fighting data to be transmitted by wireless sensing member；Step 2: according to
Signal strength determines the next base station class node that can receive the fire-fighting data to be transmitted, and determines the node class of the node
Type: when the node type of the node is fire fighting command car, using the node as destination node, to determine from the wireless sensing
Member arrives the final route path of the destination node；When the node type of the node is relay base station, the wireless biography is recorded
Sense member arrives the routed path of the node, and obtains the transistroute path from the node to fire fighting command car, by the relaying road
By the fire fighting command car in path as destination node, to determine the final road from the wireless sensing member to the destination node
By path；Step 3: data transmission method based on balance network load, transmit according to the final route path it is described to
The fire-fighting data of transmission.
Further, the determination in step 2 can receive the step of the next base station class node of the fire-fighting data to be transmitted
It suddenly include: step A1, setting signal intensity threshold；Step A2, by calculating signal strength, acquisition can cover the wireless sensing
All base station class nodes of member；Step A3, in all base station class nodes of acquisition, wherein signal strength is greater than the letter for selection
The base station class node of number intensity threshold is as both candidate nodes, and by the maximum base station class section of signal strength in the both candidate nodes
Point is determined as can receive the next base station class node of the fire-fighting data to be transmitted；Wherein, when all base station class sections of acquisition
When the both candidate nodes being not present in point, abandons the fire-fighting data to be transmitted and terminate to route.
Further, when the node type of the next base station class node determined in step 2 is relay base station, institute
State the step of obtaining transistroute path from the node to fire fighting command car include: step B1, setting bandwidth capacity threshold value and
Network maximum bandwidth capacity；Step B2, according to the relaying base in the network maximum bandwidth capacity and the fire-fighting and rescue network
Quantity of standing and fire fighting command car quantity, by the relay base station and fire fighting command car mean allocation in the fire-fighting and rescue network
Bandwidth, to obtain node maximum bandwidth capacity；Step B3, it is obtained by following processing from the next base station class node to fire-fighting
The Optimization route path of command car: all possibility from the next base station class node to the fire fighting command car that may be reached are obtained
Routed path, wherein by the possible fire fighting command car reached node as a purpose；Calculate in every possible routed path from
The next base station class node to the destination node distance, and by all distances of calculating according to arranging from small to large
Sequence；In all possible routed paths after sequence, meet condition " after the reception fire-fighting data to be transmitted for first
Remaining bandwidth capacity be greater than or equal to the bandwidth capacity threshold value " routed path be determined as the Optimization route path, with
As the transistroute path；Wherein, there is no meet condition " described in reception in all possible routed paths after sequence
Remaining bandwidth capacity after fire-fighting data to be transmitted is greater than or equal to the bandwidth capacity threshold value " routed path when, lose
It abandons the fire-fighting data to be transmitted and terminates to route.
Further, the acquisition in step B3 is from the next base station class node to the institute for the fire fighting command car that may be reached
It is possible that the step of routed path includes: step C1, setting hop count threshold value；Step C2, using the next base station class node as
Node is initiated, by the node of initiating to the base station class node broadcasts route signal adjacent with the initiation node；Step C3,
The base station class node of the route signal for initiating node is connected to the initiation node reverts back answer signal；Step C4, described
It initiates node and judges whether receive answer signal within a time cycle: if it is judged that as "No", then returning to execution
Step C2；If it is judged that being "Yes", C5 is thened follow the steps；Step C5, the answer signal institute for receiving the initiation node
Response node be added routing table；Step C6, whether the type for judging the response node is " fire fighting command car ": if the response
The type of node is not " fire fighting command car ", executes step C7；Otherwise, step C14 is executed；Step C7, determine " i+1≤hop count
Whether threshold value " is true, and in the case where " i+1≤hop count threshold value " is set up, executes step C8；Otherwise, step C14 is executed；Step
Rapid C8, it will be judged as not being that the response node of " fire fighting command car " is determined as described initiating the i-th of node and jumping off in step C6
Node is initiated in trip；Wherein, the initial value of i is 1；Step C9, each i-th, which jumps off trip, initiates node broadcasts route signal, is connected to this
I-th jump off trip initiate node route signal base station class node to this i-th jump off trip initiate node reverts back answer signal；Step
C10, each i-th jump off trip initiation node and judge whether receive answer signal within a time cycle: if it is judged that being
"No" thens follow the steps C11；Otherwise, step C12 is executed；Step C11, terminate route signal to the initiation node reverts back, institute
State initiate node after receiving this to terminate route signal by this i-th jump off trip initiate node deleted from routing table, processing knot
Beam；Step C12, this i-th is jumped off trip to initiate the corresponding non-base station class node for initiating node of the answer signal that receives of node true
It is set to i+1 and jumps off trip initiation node, and determining all i+1s is jumped off into trip initiation node and are transmitted to the initiation node,
All i+1s are jumped off trip and initiate node addition routing table by the initiation node；Step C13, the described initiation node judgement is all
I+1 jump off trip initiate node in whether include type be " fire fighting command car " node: if all i+1s jump off trip hair
The node that containing type in node is " fire fighting command car " is played, step C14 is executed；Otherwise, step C15 is executed；Step C14, will
The type is that the node of " fire fighting command car " is determined as destination node, obtains the institute from the initiation node to each destination node
There is routed path, and terminate to route, processing terminate；Step C15, i'=i+1 is enabled, and the value of i is updated to the value of current i', is sentenced
Whether disconnected " current i'≤hop count threshold value " be true: if so, return to step C10；Otherwise, processing terminate.
Further, the data transmission method based on balance network load in step 3, according to the final route road
Diameter includes: step D1, setting average transmission rate the step of the fire-fighting data to be transmitted to transmit；Step D2, to described
Video, audio data in fire-fighting data to be transmitted are compressed；Step D3, current fire-fighting data to be transmitted are divided
Piece processing or network code processing；Step D4, fragment processing or network code processing are successively transmitted by the way of breakpoint transmission
Fire-fighting data afterwards.
Further, step D3 includes: step D31, the average transmission rate is denoted as SendRate, will be described to be passed
The data volume of defeated fire-fighting data as current data packet data volume and be denoted as DataNum, determine DataNum and SendRate
Between size relation；If step D32, DataNum < SendRate, current data packet and the proximity data packet of reading are carried out
Adduction calculate after obtain the adjacent data packet of current data packet total amount of data DataPlusNum after being added, until until, be the variation for data volume after network code and reserved amount, whereinWherein, DataNumh(h=1,2 ..., k) indicate current data packet
H-th of proximity data packet data volume, k be proximity data packet number, to the k proximity data packet and current number found
It is encoded according to packet using random network code method, the data packet after obtaining coding, wherein the head of data packet in encoded
It is middle to increase following header information: processing mark, the number of data packet, coding vector, source node and fire fighting command car node IP
Address and the forward node list for participating in transmission；If step D33, DataNum > SendRate, to the fire-fighting to be transmitted
Data carry out subpackage processing, obtain multiple subdata packets, the subpackage number DataPartNum in the subpackage processing is according to such as
Lower formula executes, DataPartNum=(DataNum+ η)/SendRate, wherein η is expressed as data volume after data subpackage processing
Variation and reserved amount, treated that each subdata packet increases following header information: processing mark, the volume of data packet for subpackage
Number, the IP address of source node and fire fighting command car node and participate in the forward node list sent.
It further, further include following steps after step D4: right if step E1, receiving node is fire fighting command car
The receiving node is handled as follows: when received data packet is the data packet by network code, believing according to head
Breath is decoded received data packet, to obtain raw data packets；When received data packet is handled by subpackage
When data packet, received data packet is merged according to header information, to restore raw data packets；When the received number of institute
When according to packet being video or audio data, which is inversely decoded, to restore initial data；Step E2, it is connect described
It receives node to be properly received after data, corresponding routed path record is deleted in relevant base station class node.
Further, the node type of the next base station class node determined in step 2 is the feelings of fire fighting command car
Under condition, the fire-fighting data for initiating node are transmitted directly to the destination node, and store depositing to the destination node
In reservoir；In the case that the node type of the next base station class node determined in step 2 is relay base station, periodically will
The data of fire fighting command car are transferred to the fire-fighting and rescue command centre, and transmission process is as follows: after time interval to be polled reaches,
Fire fighting command car is traversed, transmits the fire-fighting data that each fire fighting command car is received and stored to the fire-fighting and rescue command centre,
And by fire-fighting data storage into the memory of the fire-fighting and rescue command centre.
Another invention according to the present invention, additionally provides a kind of communication device, which is characterized in that the communication device packet
Include wireless sensing member and wireless coverage and trunking；The wireless sensing member include power supply unit, general data acquisition equipment,
Video/audio data acquisition equipment, general data processing chip, video/audio data processing chip, signal strength calculate module and
Radio receiving transmitting module；The general data acquisition equipment includes personnel's three-dimensional position identifier, heartbeat sensor, smog sensing
Device, temperature sensor and thermal imaging apparatus；The video/audio data acquisition equipment includes video/audio sensor；It is described common
Data processing chip includes the first signal conditioning module, the first data acquisition module and the first Data Analysis Services module；It is described
General data acquisition equipment be connected with first signal conditioning module progress signal condition, first signal conditioning module and
First data acquisition module is connected, and first data acquisition module is connected with the first Data Analysis Services module,
The first Data Analysis Services module calculates module with the signal strength and is connected, the first Data Analysis Services module packet
Include the first reseting module；The video/audio data processing chip includes second signal conditioning module, the second data acquisition module
With the second Data Analysis Services module；The video/audio data acquisition equipment is connected progress with the second signal conditioning module
Signal condition, the second signal conditioning module are connected with second data acquisition module, second data acquisition module
It is connected with the second Data Analysis Services module, the second Data Analysis Services module and the signal strength calculate module
It is connected, the second Data Analysis Services module includes the second reseting module；The general data acquires equipment, the video sound
Frequency data acquisition equipment, general data processing chip and the video/audio data processing chip are set by the power supply respectively
Available electricity；The wireless coverage and trunking include 350M overlay router and 5.8G relay router, the 5.8G relaying
Router includes routing calculation module and data transmission module；The 350M overlay router and the 5.8G relay router it
Between can carry out two-way communication；The router-level topology that the routing calculation module carries out data transmission, the data transmission module with
Wireless mode is communicated with other base stations；Wherein, the 350M overlay router is used to cover surrounding node, and described
5.8G relay router is used for other base station class node transmission datas；The radio receiving transmitting module of the wireless sensing member with it is described
The 350M overlay router of wireless coverage and trunking wirelessly communicates；Wherein, the base station class in the communication device
Node includes relay base station, fire fighting command car and fire-fighting and rescue command centre, is equipped with the nothing in each base station class node
Line covering and trunking.
The above-mentioned method for routing for fire-fighting and rescue network of the invention, can find between all kinds of base-station nodes can
The Optimization route of data transmission is completed, transmission speed is fast, high-efficient, accuracy is high, and not easily damaged in transmission process, can
Quickly and accurately reach destination node.Wireless sensing member is completed using the algorithm of balance network load provided by the invention to be adopted
The transmission of the data of collection can be improved the efficiency of transmission and transmission accuracy of data.
By step A1~step A3 processing, enable to identified for receiving the next base station class of fire-fighting data
The signal strength of node is higher than above-mentioned signal strength threshold.
By step C1~step C15 processing, in constraint route hop count and can guarantee to protect in the normal situation of communication
The wireless transmission for demonstrate,proving fire-fighting data in method for routing, enables data to steadily be transmitted.
Carried out data transmission using the above-mentioned data transmission method based on balance network load in step 3, it being capable of basis
The factors such as data type and data volume selectively execute data merging or subpackage processing, can farthest utilize node band
Wide resource, and limited without departing from bandwidth capacity, it can guarantee that the data of big data quantity are reliably transmitted to destination.
Disaster can occur in building construction substance environment for above-mentioned method for routing and communication device provided by the invention
The information of live fire-fighting and rescue personnel and field conditions afterwards accurately and timely are transferred to fire fighting command car；Solves Wireless MESH
The problem of signal is decayed in network, enhances the interference free performance of signal, and be able to carry out high efficiency of transmission.
By the detailed description below in conjunction with attached drawing to highly preferred embodiment of the present invention, these and other of the invention is excellent
Point will be apparent from.
Detailed description of the invention
The present invention can be by reference to being better understood, wherein in institute below in association with description given by attached drawing
Have and has used the same or similar appended drawing reference in attached drawing to indicate same or similar component.The attached drawing is together with following
It is described in detail together comprising in the present specification and forming a part of this specification, and is used to that this is further illustrated
The preferred embodiment and explanation the principle of the present invention and advantage of invention.In the accompanying drawings:
Fig. 1 is to schematically show one of the method for routing according to an embodiment of the present invention for fire-fighting and rescue network to show
The flow chart of example property processing；
Fig. 2 is the step for showing the next base station class node that the determination in step 2 can receive the fire-fighting data to be transmitted
Rapid process flow diagram；
Fig. 3 is to show acquisition in step 2 from the next base station class node to the transistroute path of fire fighting command car
The step of process flow diagram；
Fig. 4 A and Fig. 4 B are that the acquisition shown in step B3 refers to from the next base station class node to the fire-fighting that may be reached
The process flow diagram for the step of waving all possible routed paths of vehicle；
Fig. 5 is an exemplary structural block diagram for schematically showing communication device according to an embodiment of the present invention.
It will be appreciated by those skilled in the art that element in attached drawing is just for the sake of showing for the sake of simple and clear,
And be not necessarily drawn to scale.For example, the size of certain elements may be exaggerated relative to other elements in attached drawing, with
Just the understanding to the embodiment of the present invention is helped to improve.
Specific embodiment
Exemplary embodiment of the invention is described hereinafter in connection with attached drawing.It should be noted is that being
It avoids having obscured the present invention because of unnecessary details, illustrate only in the accompanying drawings and close phase according to the solution of the present invention
The apparatus structure and/or processing step of pass, and be omitted and the little other details of relationship of the present invention.
The embodiment provides a kind of method for routing for fire-fighting and rescue network, in the fire-fighting and rescue network
Node include acquisition class node and base station class node, wherein acquisition class node includes wireless sensing member, and base station class node packet
Include relay base station, fire fighting command car and fire-fighting and rescue command centre.The above-mentioned method for routing for fire-fighting and rescue network includes: step
Rapid one, fire-fighting data to be transmitted are acquired by wireless sensing member；Step 2: can receive according to signal strength determination described to be passed
The next base station class node of defeated fire-fighting data, and determine the node type of the node: when the node type of the node is fire-fighting
When command car, using the node as destination node, to determine the final route from the wireless sensing member to the destination node
Path；When the node type of the node is relay base station, the wireless sensing member is recorded to the routed path of the node, and is obtained
The transistroute path from the node to fire fighting command car is taken, using the fire fighting command car in the transistroute path as target
Node, to determine the final route path from the wireless sensing member to the destination node；Step 3: negative based on equalising network
The data transmission method of load transmits the fire-fighting data to be transmitted according to the final route path.
In the following, describing an example of the above-mentioned method for routing for fire-fighting and rescue network in conjunction with Fig. 1.
The method for routing is applied in fire-fighting and rescue network, and wherein fire-fighting and rescue network (such as will be described below
Communication device) in include two class nodes, it is base station class node that one kind, which is acquisition class node, another kind of, between two class nodes into
Row communication and data transmission.
In this example, acquisition class node is wireless sensing member node (hereinafter referred wireless sensing member).Wireless sensing member
By in fire-fighting and rescue network personnel's three-dimensional position identification card device, heartbeat sensor, smoke sensor device, temperature sensor, heat at
As the wireless sensor devices such as equipment, video/audio sensor composition (can be with reference to " the wireless sensing member " of Fig. 5).Such node point
Corresponding information Yong Yu not be acquired, the live fire-fighting and rescue personnel status, scene after message reflection disaster generation collected rescue
Help situation and site environment situation；It can be also used for sending and receiving data.In this embodiment, wireless sensing member belongs to the 4th
Grade node, can be carried or be randomly placed by fire-fighting and rescue personnel.
In addition, base station class node is the node with wireless coverage, data forwarding and data-transformation facility.According to job function
Difference, base station class node can be divided into three types, i.e. relay base station node (hereinafter referred relay base station), fire fighting command car
Node (hereinafter referred fire fighting command car) and fire-fighting and rescue command center node (hereinafter referred fire-fighting and rescue command centre).It is logical
Often, in a fire-fighting and rescue network, relay base station and fire fighting command car can have multiple, and fire-fighting and rescue command centre respectively
Often only one.The structure composition of base station class node can refer to " wireless coverage and the trunking " of Fig. 5.
Relay base station is can to send and receive data with the wireless sensing member in wireless coverage certain area.At this
In embodiment, wireless sensing member belongs to third level node, and deployment setting can follow " as unit of floor, according to spatial area
Ascertain the number, close to building the window's position " principle.
Fire fighting command car is the mobile command platform of scene of fire and rescue site, can be collected to wireless sensing member
Data carry out tandem switching, have data transmission, data receiver, data storage, data processing, command scheduling, video acquisition, lead to
Letter ensures the multiple functions such as video conference, granting and alarm control, is convenient for floor manager.In this embodiment, fire fighting command car
Belong to second level node, may generally reside in position near the building outside that disaster occurs.
Fire-fighting and rescue command centre is the informatization platform of fire-fighting rescue, occurs to be conducive to fire-fighting when severe and great casualty
Rescue command center and floor manager personnel accurately and timely understand field condition, carry out scientific commander, reduce the loss of people's wealth.
In this embodiment, fire-fighting and rescue command centre belongs to first order node, may be generally located at administration of the prevention and control department.
In addition, the communication between node in fire-fighting and rescue network wirelessly carries out, the connecting line segment between node
There is correspondence, which is known as " the communication of fire-fighting and rescue network between two nodes that expression line segment is connected
Side ".Wherein, side right value 1 is communicated with signal strength expression, it refers to the communication strength of data receiving node after the transmission of communication side；
Communication side right value 2 is indicated with bandwidth capacity, it refers to the bandwidth capacity of data receiving node after the transmission of communication side.
In this way, the nodal information in fire-fighting and rescue network can be described as follows:
Wireless sensing member set is denoted as SE={ se1,se2,...,sen, wherein include in n expression fire-fighting and rescue network
Wireless sensing member number；
Relay base station set is denoted as BS={ bs1,bs2,...,bsm, wherein include in m expression fire-fighting and rescue network
Relay base station number；
Fire fighting command car set is denoted as DC={ dc1,dc2,...,dcp, wherein include in p expression fire-fighting and rescue network
Fire fighting command car number；
Fire-fighting and rescue command centre set is denoted as CE={ ce1,ce2,...,ceq, wherein q indicates fire-fighting and rescue network
In include fire-fighting and rescue command centre, only one element of the set under normal conditions；
" communication side " set of fire-fighting and rescue network is denoted as ED={ ed1,ed2,...,edj, wherein j indicates communication number of edges
Mesh, the either element in the set have attribute start node, terminal node and signal strength.
As shown in Figure 1, the exemplary process flow of method for routing starts from step 1.Wherein, steps described below one
It is with any wireless sensing member se in fire-fighting and rescue network to step 30For be described, other wireless sensings member
Processing method is identical with this, and is repeated no more.
In step 1, pass through wireless sensing member se0Acquire fire-fighting data to be transmitted.Wherein, fire-fighting number to be transmitted
According to including business datum and physical location data.Wherein, the type of business datum is related with the type of wireless sensing member, such as cigarette
Mist data are acquired by smoke sensor device and are obtained；Physical location data includes node se0The three-dimensional coordinate of site, including x, y
With z value.In addition, wireless sensing member se0Video/audio data collected are stored in node se0Video storage card in case
After look into, if the data in data storage card reach the upper limit, data collected will be abandoned, and give a warning.
Then, in step 2, receivable wireless sensing member se is determined according to signal strength0It is collected to be transmitted to disappear
The next base station class node Nd (step 2 mono-) of anti-data.Then, it is determined that the node type of the next base station class node Nd
(step 2 bis-).
When the node type of the next base station class node Nd is fire fighting command car using node Nd as destination node, with
It determines from wireless sensing member se0To the final route path (step 2 tri-) of destination node.
When the node type of the next base station class node Nd is relay base station, wireless sensing member se is recorded0To the section
The routed path of point Nd in the routing table of the 5.8G relay router of node Nd (that is, add a record Rowa, in order
Charge to path node se0With node Nd, interior joint se0For major key), and obtain the relaying from node Nd to fire fighting command car
Routed path, using the fire fighting command car in the transistroute path as destination node, to determine from wireless sensing member se0To mesh
Mark the final route path (step 2 tetra-) of node.
Then, in step 3, data transmission method based on balance network load is passed according to the final route path
Defeated wireless sensing member se0Above-mentioned fire-fighting data to be transmitted collected.
Further, the determination in step 2 can receive the step of the next base station class node of the fire-fighting data to be transmitted
It suddenly may include step A1~step A3 as shown in Figure 2.
As shown in Fig. 2, setting signal intensity threshold φ, the signal strength threshold is that data reach reception in step A1
The minimum value of the signal strength of receiving node when node, for judging whether signal can reach next node, which can root
It is preset according to empirical value or actual needs.
Then, in step A2, by calculating signal strength, acquisition can cover wireless sensing member se0All base station classes
Node.
Any base station class node Nd0Using its 350M overlay router read fire-fighting and rescue network in wireless sensing member, in
After base station and the physical location data and IP data of all kinds of nodes of fire fighting command car, and by the physical bit of acquired all kinds of nodes
It sets data and node Nd is recorded0Routing table in.The physical location data of node includes the three-dimensional of the node site and sits
Mark.
According to the weak characteristic in signals transmission, the signal strength of receiving node calculates public after transmitting using data
Formula successively calculates wireless sensing member node se0Reach the signal with the node (i.e. base station class node) of " communication base station device "
Intensity value is denoted as set SIG={ sig1,sig2,...,sigc}。
Situations such as reflection, diffraction, diffraction and refraction are also easy to produce in signal communication process, according to declining in signals transmission
Weak characteristic calculates, and the calculating process of signal strength when data are transferred to receiving node can for example refer to 2010 by Li Yaoyi
" wireless location method based on path loss model parameters real-time estimation " delivered, I will not elaborate.
Then, in step A3, in all base station class nodes of acquisition, wherein signal strength is greater than signal strength for selection
The base station class node of threshold value is as both candidate nodes, and the maximum base station class node of signal strength in both candidate nodes is determined as can
Receive wireless sensing member se0The next base station class node of fire-fighting data to be transmitted collected.
Wherein, when there is no the condition that meets " signal strength are greater than signal strength threshold " in all base station class nodes of acquisition
Both candidate nodes when, abandon wireless sensing member se0Fire-fighting data to be transmitted collected, and terminate to route.
In this way, being enabled to identified for receiving the next of fire-fighting data by step A1~step A3 processing
The signal strength of base station class node is higher than above-mentioned signal strength threshold.
Further, when the node type of the next base station class node determined in step 2 is relay base station, institute
Stating the step of obtaining the transistroute path from the node to fire fighting command car can be by step B1~step as described in Figure 3
B3 is realized.
As shown in figure 3, in step bl is determined, bandwidth capacity threshold value δ and network maximum bandwidth capacity BandWidthMax is arranged.
Wherein, the unit of bandwidth capacity threshold value δ is Mb/s, which is the band of receiving node when data reach receiving node
The minimum value of tolerance, for judging whether signal can reach next node, the threshold value can based on experience value or actual needs
To set.
The unit of network maximum bandwidth capacity BandWidthMax is Mb/s, it is in noiseless unobstructed ideal state
The maximum data rate that certain point can pass through to another point from fire-fighting and rescue network in the lower unit time.
Then, in step B2, the network maximum bandwidth capacity BandWidthMax set by step B1, and root
According to the relay base station quantity and fire fighting command car quantity in fire-fighting and rescue network, to obtain node maximum bandwidth capacity, that is, disappearing
The maximum bandwidth capacity that all kinds of nodes can allow for during carrying out data transmission in anti-rescue network.For example, can lead to
It crosses to the relay base station and fire fighting command car mean allocation bandwidth in fire-fighting rescue net network, it is tolerant to obtain above-mentioned node maximum belt
Amount.Wherein, the calculation formula of node maximum bandwidth capacity are as follows:
NodeBW=BandWidthMax/ (m+q)
In the formula, the meaning of m, q are described above, and which is not described herein again.
Then, in step B3, being obtained by following processing from the next base station class node Nd (is at this time relaying base
Stand) arrive fire fighting command car Optimization route path:
(1) all possible routing roads from the next base station class node Nd to the fire fighting command car that may be reached are obtained
Diameter, wherein the fire fighting command car that will likely be reached node as a purpose.
(2) it calculates in every possible routed path from the next base station class node Nd to the distance of destination node, and will
All distances calculated according to being ranked up from small to large.
(3) in all possible routed paths after sequence, meet condition for first and " receive fire-fighting data to be transmitted
Remaining bandwidth capacity later be greater than or equal to bandwidth capacity threshold value " routed path be determined as from the next base station class node
Nd is to the Optimization route path of fire fighting command car, using the Optimization route path as transistroute path described above.
The remaining bandwidth capacity BandWidth of each possibility routed path can be calculated according to the following formula:
BandWidth=NodeBW-BandWidthLoss
BandWidthLoss is the bandwidth lose of receiving node after being transferred to receiving node from sending node, and unit is Mb/
s；The maximum bandwidth capacity of NodeBW expression receiving node.
Wherein, there is no meet condition " to receive fire-fighting data to be transmitted in all possible routed paths after sequence
Remaining bandwidth capacity later be greater than or equal to bandwidth capacity threshold value " routed path when, abandon wireless sensing member se0It is acquired
Fire-fighting data to be transmitted, and terminate to route.
Further, the acquisition in step B3 is from the next base station class node to the institute for the fire fighting command car that may be reached
It is possible that the step of routed path, can be realized by step C1~step C15 as shown in Figure 4 A and 4 B shown in FIG..
As shown in Figure 4 A and 4 B shown in FIG., in step C1, hop count threshold value Flop is set.The unit of hop count threshold value Flop is to jump,
Numerical value >=1, the value is for controlling signal data decaying serious situation after multi-hop.
Then, in step C2, using the next base station class node Nd as initiate node, by the initiation node to
The adjacent base station class node broadcasts route signal of the initiation node.
Then, in step C3, the base station class node of the route signal of the initiation node is connected to the initiation node reverts back
Answer signal.
Then, in step C4, which judges that (time cycle for example can be rule of thumb in a time cycle
Value is preset) in whether receive answer signal:
If it is judged that being "No" (i.e. the initiation node does not receive answer signal within a time cycle), then return
Receipt row step C2；
If it is judged that being "Yes" (i.e. the initiation node has been received by answer signal within a time cycle), then execute
Step C5；
In step C5, routing table is added in the response node where the answer signal which is received.Then, it holds
Row step C6.
In step C6, judge whether the type of response node is " fire fighting command car ": if the type of response node is not
" fire fighting command car " (i.e. "No") continues to execute step C7, and " i+1≤hop count threshold value " (wherein, i is determined in step C7
Initial value is 1) whether true, the execution step C8 in the case where " i+1≤hop count threshold value " is set up, in " i+1≤hop count threshold
In the case that value " is invalid, step C14 is executed；If the type of response node is " fire fighting command car " (i.e. "Yes"), step is executed
C14。
In step C8, by be judged as in step C6 be not " fire fighting command car " response node be determined as initiate node
I-th jump off trip initiate node.Then, step C9 is executed.
In step C9, each i-th jump off trip initiate node broadcasts route signal, be connected to this i-th jump off trip initiate node
Route signal base station class node to this i-th jump off trip initiate node reverts back answer signal.
Then, in step C10, whether each i-th jumps off trip initiates node and judges to receive within a time cycle and answer
Answer signal:
If it is judged that for "No" (i.e. this i-th jump off trip initiate node do not received within a time cycle response letter
Number), then C11 is executed, this i-th jumps off trip and initiate node and terminate route signal to node reverts back is initiated in step C11, initiates section
Point after receiving this to terminate route signal by this i-th jump off trip initiate node deleted from routing table, then end processing；
If it is judged that for "Yes" (i.e. this i-th jump off trip initiate node had been received by within a time cycle response letter
Number), C12 is thened follow the steps, this i-th jumps off trip and initiate node and i-th jump off trip and initiate answering of receiving of node this in step C12
It answers the corresponding non-base station class node for initiating node of signal to be determined as i+1 and jump off trip initiating node, and by determining all i-th
+ 1, which jumps off trip initiation node, is transmitted to initiation node, and all i+1s are jumped off trip initiation node and routing table is added by initiation node.So
Afterwards, step C13 is executed.
In step C13, initiate node judge that all i+1s are jumped off in trip initiation node whether to include type " to disappear
The node of anti-command car ": if all i+1s jump off trip initiate node in containing type be " fire fighting command car " node (i.e.
"Yes"), execute step C14；Otherwise, step C15 is executed；
In step C14, the node that the type is " fire fighting command car " is determined as destination node, obtains and is saved from initiation
Point arrives all routed paths of each destination node (as from the next base station class node Nd to the fire fighting command car that may be reached
All possible routed paths), and terminate to route.Processing terminate.
In step C15, i'=i+1 is enabled, and the value of i is updated to the value of current i', judges " current i'≤hop count threshold
Whether value " is true: if so, return to step C10；Otherwise processing terminate.
It is blocked and is absorbed generally, due to by materials such as armored concrete, timber, signal (or data) intensity can be with
The increase of hop count and decay so that signal is possible to not arrive at the destination.By above step C1~step C15 processing,
It can guarantee the wireless transmission of fire-fighting data in method for routing in the case where constraint route hop count and guarantee communicate normal situation, so that
Data can be transmitted steadily.
Further, the data transmission method based on balance network load in step 3, according to the final route road
Diameter can be realized the step of transmitting the fire-fighting data to be transmitted by step D1~step D4.
In step D1, average transmission rate is set.It is SendRate that average transmission rate, which is arranged, and unit is MB/s, is put down
Equal transmission rate indicates the data volume transmitted in the unit time from sending node to receiving node；Data are transmitted from sending node
The bandwidth capacity of receiving node is denoted as BandWidth after to receiving node, then the restrictive condition of averagely transmission rate is
The < of SendRate × 8 BandWidth.
Then, in step d 2, to wireless sensing member se0Video, audio in fire-fighting data to be transmitted collected
Data are compressed.Transmission bandwidth, compression ratio, algorithm complexity, picture are comprehensively considered as needed for video/audio data
The factors such as quality and node motion characteristic carry out data compression according to corresponding video compression standard and algorithm.
Then, in step D3, fragment processing is carried out to current fire-fighting data to be transmitted or network code is handled.
Then, in step D4, successively transmitted by the way of breakpoint transmission fragment processing or network code treated
Fire-fighting data.If encountering network failure in data transmission procedure, record is interrupted to the interrupt identification BreakFlag of data packet
Object, the data packet being interrupted after network is unobstructed continue the part that mark is interrupted in transmission setting.The interrupt identification
BreakFlag object has attribute " package number ", " breakpoint location " and " destination node ".
Further, step D3 may include step D31~step D33 described below.
In step D31, data volume to be transmitted is denoted as DataNum, and unit is MB, and average transmission rate is denoted as
SendRate, using the data volume of fire-fighting data to be transmitted as the data volume of current data packet and be denoted as DataNum (that is,
Using fire-fighting data to be transmitted as current data packet), determine the size relation between DataNum and SendRate.
If DataNum < SendRate, step D32 is executed, and in this step, by the neighbouring of current data packet and reading
Data packet obtains the adjacent data packet of current data packet total amount of data DataPlusNum after being added after summing up calculating,
UntilUntil,It is the variation for data volume after network code and reserved amount,
Wherein,
DataNumh(h=1,2 ..., k) indicates the data volume of h-th of proximity data packet of current data packet, and k is neighbouring
The number of data packet encodes the k proximity data packet and current data packet application random network code method that are found,
Data packet after obtaining coding, wherein increase following header information in the head of data packet in encoded: processing mark is (here
Added processing is identified as " network code "), the number of data packet, coding vector, source node (i.e. wireless sensing member se0) with
The IP address of fire fighting command car node and the forward node list (wherein, forward node such as relay node) for participating in transmission.
If DataNum > SendRate, execute step D33, and in this step, to the fire-fighting data to be transmitted into
Row subpackage processing, obtains multiple subdata packets, and the subpackage number DataPartNum in the subpackage processing is held according to the following formula
Row,
DataPartNum=(DataNum+ η)/SendRate,
Wherein, η is expressed as the variation of data volume after data subpackage processing and reserved amount, subpackage treated each subdata
Packet increases following header information: processing mark (processing added by here is identified as " data subpackage "), the number of data packet, source
Node (i.e. wireless sensing member se0) with the IP address of fire fighting command car node and participate in the forward node list sent (wherein,
Forward node such as relay node).
Carried out data transmission using the above-mentioned data transmission method based on balance network load in step 3, it being capable of basis
The factors such as data type and data volume selectively execute data merging or subpackage processing, can farthest utilize node band
Wide resource, and limited without departing from bandwidth capacity, it can guarantee that the data of big data quantity are reliably transmitted to destination.
Further, after step D4, E1 and step E2 can also be included the following steps, namely.
Wherein, in step E1, determine whether receiving node is fire fighting command car, if so, carrying out such as to receiving node
Lower processing:
When received data packet is the data packet by network code, according to header information to received data packet
It is decoded, to obtain raw data packets；
When received data packet is the data packet handled by subpackage, according to header information to received data packet
It merges, to restore raw data packets.
In addition, inversely being decoded when received data packet is video or audio data to the data packet, with reduction
Initial data.
In step E2, after receiving node has been properly received data, deleted in relevant base station class node corresponding
Routed path record.
Further, the node type of the next base station class node Nd determined in step 2 is fire fighting command car
In the case of, the fire-fighting data for initiating node are transmitted directly to destination node, and store into the memory of destination node.
In addition, the case where node type of the next base station class node Nd determined in step 2 is relay base station
Under, each fire fighting command car timing transfers data to fire-fighting and rescue command centre, and transmission process is as follows: time interval to be polled arrives
After reaching, fire fighting command car transmits the fire-fighting data that each fire fighting command car is received and stored to fire-fighting and rescue command centre, and will
The fire-fighting data are stored into the memory of fire-fighting and rescue command centre.
The above-mentioned method for routing for fire-fighting and rescue network of the invention, can find between all kinds of base-station nodes can
The Optimization route of data transmission is completed, transmission speed is fast, high-efficient, accuracy is high, and not easily damaged in transmission process, can
Quickly and accurately reach destination node.Wireless sensing member is completed using the algorithm of balance network load provided by the invention to be adopted
The transmission of the data of collection can be improved the efficiency of transmission and transmission accuracy of data.
In addition, the embodiments of the present invention also provide a kind of communication devices, as shown in figure 5, the communication device includes wireless
Sensing element 1 and wireless coverage and trunking 2.
The wireless sensing member 1 includes power supply unit 110, general data acquires equipment 120, the acquisition of video/audio data is set
Standby 130, general data processing chip 140, video/audio data processing chip 150, signal strength calculate module 160 and wireless receipts
Send out module 170.
The general data acquisition equipment 120 includes personnel's three-dimensional position identifier 121, heartbeat sensor 122, smog biography
Sensor 123, temperature sensor 124 and thermal imaging apparatus 125；
The video/audio data acquisition equipment 130 includes video/audio sensor 131.
The general data processing chip 140 includes the first signal conditioning module 141,142 and of the first data acquisition module
First Data Analysis Services module 143；The general data acquisition equipment 120 is connected with first signal conditioning module 141
Signal condition is carried out, first signal conditioning module 141 is connected with first data acquisition module 142, first number
Be connected according to acquisition module 142 with the first Data Analysis Services module 143, the first Data Analysis Services module 143 with
The signal strength calculates module 160 and is connected, and the first Data Analysis Services module 143 includes the first reseting module 143-1.
The video/audio data processing chip 150 includes second signal conditioning module 151, the second data acquisition module
152 and the second Data Analysis Services module 153；The video/audio data acquisition equipment 130 improves mould with the second signal
Block 151, which is connected, carries out signal condition, and the second signal conditioning module 151 is connected with second data acquisition module 152, institute
It states the second data acquisition module 152 to be connected with the second Data Analysis Services module 153, the second Data Analysis Services mould
Block 153 calculates module 160 with the signal strength and is connected, and the second Data Analysis Services module 153 includes the second reset mould
Block 153-1.
The general data acquisition equipment 120, the video/audio data acquisition equipment 130, general data processing
Chip 140 and the video/audio data processing chip 150 are powered by the power supply unit 110 respectively.
The wireless coverage and trunking 2 include 350M overlay router 210 and 5.8G relay router 220, described
5.8G relay router 220 includes routing calculation module 221 and data transmission module 222；210 He of 350M overlay router
Two-way communication can be carried out between the 5.8G relay router 220；The road that the routing calculation module 221 carries out data transmission
By calculating, the data transmission module 222 is wirelessly communicated with other base stations；Wherein, the 350M covering routing
Device 210 is for covering surrounding node, and the 5.8G relay router 220 is used for other base station class node-node transmission numbers
According to.
The 350M of the radio receiving transmitting module 170 of the wireless sensing member 1 and the wireless coverage and trunking 2 covers road
It is wirelessly communicated by device 210.
Wherein, the base station class node in the communication device includes relay base station, fire fighting command car and fire-fighting and rescue commander
Center is equipped with the wireless coverage and trunking 2 in each base station class node.
Disaster can occur in building construction substance environment for above-mentioned method for routing and communication device provided by the invention
The information of live fire-fighting and rescue personnel and field conditions afterwards accurately and timely are transferred to fire fighting command car；Solves Wireless MESH
The problem of signal is decayed in network, enhances the interference free performance of signal, and be able to carry out high efficiency of transmission.
Although the embodiment according to limited quantity describes the present invention, above description, the art are benefited from
It is interior it is clear for the skilled person that in the scope of the present invention thus described, it can be envisaged that other embodiments.Additionally, it should be noted that
Language used in this specification primarily to readable and introduction purpose and select, rather than in order to explain or limit
Determine subject of the present invention and selects.Therefore, without departing from the scope and spirit of the appended claims, for this
Many modifications and changes are obvious for the those of ordinary skill of technical field.For the scope of the present invention, to this
Invent done disclosure be it is illustrative and not restrictive, it is intended that the scope of the present invention be defined by the claims appended hereto.
Claims (8)
1. being used for the method for routing of fire-fighting and rescue network, which is characterized in that the node in the fire-fighting and rescue network includes acquisition
Class node and base station class node, wherein the acquisition class node includes wireless sensing member, and the base station class node includes relaying base
It stands, fire fighting command car and fire-fighting and rescue command centre；The method for routing for fire-fighting and rescue network includes:
Step 1: acquiring fire-fighting data to be transmitted by wireless sensing member；
Step 2: determining the next base station class node that can receive the fire-fighting data to be transmitted according to signal strength, and determine
The node type of the node:
When the node type of the node is fire fighting command car, using the node as destination node, to determine from the wireless biography
Sense member arrives the final route path of the destination node；
When the node type of the node is relay base station, the wireless sensing member is recorded to the routed path of the node, and is obtained
The transistroute path from the node to fire fighting command car is taken, using the fire fighting command car in the transistroute path as target
Node, to determine the final route path from the wireless sensing member to the destination node；
Step 3: data transmission method based on balance network load, transmit according to the final route path it is described to be passed
Defeated fire-fighting data；
It is described to obtain from the node when the node type of the next base station class node determined in step 2 is relay base station
Include: to the step of transistroute path of fire fighting command car
Step B1, bandwidth capacity threshold value and network maximum bandwidth capacity are set；
Step B2, according in the network maximum bandwidth capacity, the fire-fighting and rescue network relay base station quantity and fire-fighting refer to
Vehicle quantity is waved, by the relay base station and fire fighting command car mean allocation bandwidth in the fire-fighting and rescue network, to be saved
Point maximum bandwidth capacity；
Step B3, it is obtained by following processing from the next base station class node to the Optimization route path of fire fighting command car:
Obtain all possible routed paths from the next base station class node to the fire fighting command car that may be reached, wherein will
The possible fire fighting command car reached node as a purpose,
It calculates in every possible routed path from the next base station class node to the distance of the destination node, and by calculating
All distances according to being ranked up from small to large,
In all possible routed paths after sequence, by first meet condition " receive the fire-fighting data to be transmitted it
Remaining bandwidth capacity afterwards be greater than or equal to the bandwidth capacity threshold value " routed path be determined as the Optimization route path,
Using as the transistroute path；Wherein, when there is no the conditions that meets " to receive described to be transmitted in all possible routed paths
Fire-fighting data after remaining bandwidth capacity be greater than or equal to the bandwidth capacity threshold value " routed path when, described in discarding
Fire-fighting data to be transmitted simultaneously terminate to route.
2. the method for routing according to claim 1 for fire-fighting and rescue network, which is characterized in that the determination in step 2
The step of can receive the next base station class node of the fire-fighting data to be transmitted include:
Step A1, setting signal intensity threshold；
Step A2, by calculating signal strength, all base station class nodes that can cover the wireless sensing member are obtained；
Step A3, in all base station class nodes of acquisition, selection wherein signal strength be greater than the signal strength threshold base
The maximum base station class node of signal strength in the both candidate nodes is determined as can receive by class of standing node as both candidate nodes
The next base station class node of the fire-fighting data to be transmitted；
Wherein, when the both candidate nodes are not present in all base station class nodes of acquisition, the fire-fighting number to be transmitted is abandoned
According to and terminate to route.
3. the method for routing according to claim 1 for fire-fighting and rescue network, which is characterized in that the acquisition in step B3
Include: from the next base station class node to the step of all possible routed paths for the fire fighting command car that may be reached
Step C1, hop count threshold value is set；
Step C2, using the next base station class node as initiate node, by the initiation node to the initiation node
Adjacent base station class node broadcasts route signal；
Step C3, the base station class node of the route signal for initiating node is connected to the initiation node reverts back answer signal；
Step C4, the described initiation node judges whether receive answer signal within a time cycle:
If it is judged that being "No", then C2 is returned to step；
If it is judged that being "Yes", C5 is thened follow the steps；
Step C5, the response node addition routing table where the answer signal for receiving the initiation node；
Step C6, whether the type for judging the response node is " fire fighting command car ": if the type of the response node is not " fire-fighting
Command car " executes step C7；Otherwise, step C14 is executed；
Step C7, determine whether " i+1≤hop count threshold value " be true, and in the case where " i+1≤hop count threshold value " is set up, execute
Step C8；Otherwise, step C14 is executed；
Step C8, it will be judged as not being that the response node of " fire fighting command car " is determined as described initiating the of node in step C6
I jumps off trip and initiates node；Wherein, the initial value of i is 1；
Step C9, each i-th, which jumps off trip, initiates node broadcasts route signal, is connected to i-th routing for jumping off trip initiation node and believes
Number base station class node to this i-th jump off trip initiate node reverts back answer signal；
Step C10, each i-th, which jumps off trip initiation node, judges whether receive answer signal within a time cycle: if sentenced
Disconnected result is "No", thens follow the steps C11；Otherwise, step C12 is executed；
Step C11, terminate route signal to the initiation node reverts back, the initiation node is after receiving this and terminating route signal
By this i-th jump off trip initiate node deleted from routing table, processing terminate；
Step C12, this i-th is jumped off trip to initiate the corresponding non-base station class node for initiating node of the answer signal that receives of node true
It is set to i+1 and jumps off trip initiation node, and determining all i+1s is jumped off into trip initiation node and are transmitted to the initiation node,
All i+1s are jumped off trip and initiate node addition routing table by the initiation node；
Step C13, the described initiation node judges that all i+1s jump off trip and initiate in node whether to include type for " fire-fighting refers to
Wave vehicle " node: if all i+1s jump off trip initiate node in containing type be " fire fighting command car " node, execute step
Rapid C14；Otherwise, step C15 is executed；
Step C14, the node that the type is " fire fighting command car " is determined as destination node, obtain from the initiation node to
All routed paths of each destination node, and terminate to route, processing terminate；
Step C15, enable i'=i+1, and the value of i be updated to the value of current i', judgement " current i'≤hop count threshold value " whether at
It is vertical: if so, return to step C10；Otherwise, processing terminate.
4. the method for routing according to claim 1 for fire-fighting and rescue network, which is characterized in that in step 3 based on
The data transmission method of balance network load, the step that the fire-fighting data to be transmitted are transmitted according to the final route path
Suddenly include:
Step D1, average transmission rate is set；
Step D2, video, the audio data in the fire-fighting data to be transmitted are compressed；
Step D3, fragment processing is carried out to current fire-fighting data to be transmitted or network code is handled；
Step D4, fragment processing or network code treated fire-fighting data are successively transmitted by the way of breakpoint transmission.
5. the method for routing according to claim 4 for fire-fighting and rescue network, which is characterized in that step D3 includes:
Step D31, the average transmission rate is denoted as SendRate, using the data volume of the fire-fighting data to be transmitted as
The data volume of current data packet is simultaneously denoted as DataNum, determines the size relation between DataNum and SendRate；
If step D32, DataNum < SendRate, after the proximity data packet of current data packet and reading is summed up calculating
The adjacent data packet of current data packet total amount of data DataPlusNum after being added is obtained, untilUntil,It is the variation for data volume after network code and reserved amount,
Wherein,Wherein, DataNumh(h=1,2 ..., k) it indicates to work as
The data volume of h-th of proximity data packet of preceding data packet, k is the number of proximity data packet, to the k proximity data packet found
It is encoded with current data packet application random network code method, the data packet after obtaining coding, wherein number in encoded
According to increasing following header information in the head of packet: processing mark, the number of data packet, coding vector, source node and fire fighting command car
The IP address of node and the forward node list for participating in transmission；
If step D33, DataNum > SendRate, subpackage processing is carried out to the fire-fighting data to be transmitted, obtains multiple sons
Data packet, the subpackage number DataPartNum in subpackage processing are executed according to the following formula,
DataPartNum=(DataNum+ η)/SendRate,
Wherein, η is expressed as the variation of data volume after data subpackage processing and reserved amount, and treated that each subdata packet increases for subpackage
Add following header information: processing mark, the IP address of the number of data packet, source node and fire fighting command car node and participation are sent out
The forward node list sent.
6. the method for routing according to claim 4 for fire-fighting and rescue network, which is characterized in that after step D4,
Further include following steps:
If step E1, receiving node is fire fighting command car, the receiving node is handled as follows:
When received data packet is the data packet by network code, received data packet is carried out according to header information
Decoding, to obtain raw data packets；When received data packet is the data packet handled by subpackage, according to header information pair
Received data packet merges, to restore raw data packets；
When received data packet is video or audio data, which is inversely decoded, to restore initial data；
Step E2, after the receiving node has been properly received data, corresponding road is deleted in relevant base station class node
It is recorded by path.
7. the method for routing according to claim 3 for fire-fighting and rescue network, which is characterized in that
In the case that the node type of the next base station class node determined in step 2 is fire fighting command car, by the hair
The fire-fighting data for playing node are transmitted directly to the destination node, and store into the memory of the destination node；
In the case that the node type of the next base station class node determined in step 2 is relay base station, periodically by fire-fighting
The data of command car are transferred to the fire-fighting and rescue command centre, and transmission process is as follows: after time interval to be polled reaches, traversal
Fire fighting command car transmits the fire-fighting data that each fire fighting command car is received and stored to the fire-fighting and rescue command centre, and will
The fire-fighting data are stored into the memory of the fire-fighting and rescue command centre.
8. communication device, which is characterized in that the communication device includes wireless sensing first (1) and wireless coverage and trunking
(2)；
The wireless sensing first (1) includes power supply unit (110), general data acquisition equipment (120), the acquisition of video/audio data
Equipment (130), general data processing chip (140), video/audio data processing chip (150), signal strength calculate module
(160) and radio receiving transmitting module (170)；
General data acquisition equipment (120) includes personnel's three-dimensional position identifier (121), heartbeat sensor (122), smog
Sensor (123), temperature sensor (124) and thermal imaging apparatus (125)；
The video/audio data acquisition equipment (130) includes video/audio sensor (131)；
General data processing chip (140) includes the first signal conditioning module (141), the first data acquisition module (142)
With the first Data Analysis Services module (143)；General data acquisition equipment (120) and first signal conditioning module
(141) it is connected and carries out signal condition, first signal conditioning module (141) and the first data acquisition module (142) phase
Even, first data acquisition module (142) is connected with the first Data Analysis Services module (143), first data
Analysis and processing module (143) calculates module (160) with the signal strength and is connected, the first Data Analysis Services module
(143) include the first reseting module (143-1)；
The video/audio data processing chip (150) includes second signal conditioning module (151), the second data acquisition module
(152) and the second Data Analysis Services module (153)；The video/audio data acquisition equipment (130) and the second signal
Conditioning module (151), which is connected, carries out signal condition, the second signal conditioning module (151) and second data acquisition module
(152) it is connected, second data acquisition module (152) is connected with the second Data Analysis Services module (153), and described the
Two Data Analysis Services modules (153) calculate module (160) with the signal strength and are connected, the second Data Analysis Services mould
Block (153) includes the second reseting module (153-1)；
General data acquisition equipment (120), the video/audio data acquisition equipment (130), general data processing
Chip (140) and the video/audio data processing chip (150) are powered by the power supply unit (110) respectively；
The wireless coverage and trunking (2) include 350M overlay router (210) and 5.8G relay router (220), institute
Stating 5.8G relay router (220) includes routing calculation module (221) and data transmission module (222)；The 350M covers road
By two-way communication can be carried out between device (210) and the 5.8G relay router (220)；The routing calculation module (221)
The router-level topology carried out data transmission, the data transmission module (222) are wirelessly communicated with other base stations；Its
In, the 350M overlay router (210) is for covering surrounding node, and the 5.8G relay router (220) is used for
To other base station class node transmission datas；
The 350M of the radio receiving transmitting module (170) of the wireless sensing first (1) and the wireless coverage and trunking (2) is covered
Router (210) wirelessly communicates；
Wherein, the base station class node in the communication device includes relay base station, fire fighting command car and fire-fighting and rescue command centre,
The wireless coverage and trunking (2) are equipped in each base station class node.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501337.5A CN105208617B (en) | 2015-08-14 | 2015-08-14 | Method for routing and communication device for fire-fighting and rescue network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501337.5A CN105208617B (en) | 2015-08-14 | 2015-08-14 | Method for routing and communication device for fire-fighting and rescue network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105208617A CN105208617A (en) | 2015-12-30 |
| CN105208617B true CN105208617B (en) | 2018-12-25 |
Family
ID=54955966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510501337.5A Active CN105208617B (en) | 2015-08-14 | 2015-08-14 | Method for routing and communication device for fire-fighting and rescue network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105208617B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105636149A (en) * | 2016-01-25 | 2016-06-01 | 北京小米移动软件有限公司 | Relay method and device and system |
| CN106413025B (en) * | 2016-10-21 | 2019-07-26 | 国网黑龙江省电力有限公司信息通信公司 | Electric car charging route selection method |
| CN109118740B (en) * | 2018-09-14 | 2023-09-29 | 应急管理部沈阳消防研究所 | Toxic and harmful gas monitoring system special for fire-fighting and rescue scene of fire-fighting army and data transmission processing method |
| CN114866187B (en) * | 2022-04-28 | 2023-11-03 | 南京科融数据系统股份有限公司 | Security information transmission method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110085442A1 (en) * | 2009-09-10 | 2011-04-14 | Fujitsu Limited | Wireless communication network and adaptive routing communication method thereof |
| CN102223413A (en) * | 2011-06-20 | 2011-10-19 | 北京航天控制仪器研究所 | Intelligent monitoring system of dangerous goods container transported by ship |
| CN103249108A (en) * | 2013-04-19 | 2013-08-14 | 江苏科技大学 | Wireless sensor network balanced energy consumption route method based on non-uniform clustering |
| CN103889020A (en) * | 2014-03-14 | 2014-06-25 | 上海交通大学 | Wireless sensor network system based on dynamic routing and method thereof |
-
2015
- 2015-08-14 CN CN201510501337.5A patent/CN105208617B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110085442A1 (en) * | 2009-09-10 | 2011-04-14 | Fujitsu Limited | Wireless communication network and adaptive routing communication method thereof |
| CN102223413A (en) * | 2011-06-20 | 2011-10-19 | 北京航天控制仪器研究所 | Intelligent monitoring system of dangerous goods container transported by ship |
| CN103249108A (en) * | 2013-04-19 | 2013-08-14 | 江苏科技大学 | Wireless sensor network balanced energy consumption route method based on non-uniform clustering |
| CN103889020A (en) * | 2014-03-14 | 2014-06-25 | 上海交通大学 | Wireless sensor network system based on dynamic routing and method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 基于LEACH的WSNs分簇优化策略;李亚男，徐夫田，陈金鑫;《传感技术学报》;20140531;第27卷(第5期);第672页第2.2.2节-第2.3节、图1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105208617A (en) | 2015-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111630933B (en) | Method and apparatus for performing side link communication by UE in NR V2X | |
| CN105208617B (en) | Method for routing and communication device for fire-fighting and rescue network | |
| CN104838597B (en) | Adaptive channel reuse mechanism in communication network | |
| Tung et al. | The generic design of a high-traffic advanced metering infrastructure using ZigBee | |
| CN105100167B (en) | The processing method and car-mounted terminal of message | |
| CN104869526B (en) | A kind of communication of device-to-device and its resource allocation methods, equipment | |
| CN103596212B (en) | Layer two under heterogeneous network is measured and result processing method and equipment | |
| CN103403774B (en) | Method and apparatus for the transmission reported to the police that cooperates | |
| CN110035472A (en) | A kind of transmission method and the network equipment | |
| CN106162511A (en) | Determination, using method and the device of a kind of D2D via node | |
| CN106470382A (en) | Authority checking method, configuration information method of reseptance, device, base station and terminal | |
| CN105245358B (en) | Intelligent grid MAC layer multi-service method for analyzing performance based on Markov model | |
| CN110535520B (en) | Mobile intelligent relay equipment and relay system for improving indoor Internet of things signal coverage | |
| Sun et al. | Enabling emergency communication through a cognitive radio vehicular network | |
| CN106211026A (en) | A kind of method, network control node and subscriber equipment realizing the selection of equipment straightforward trunking | |
| CN103780703B (en) | Crowd evacuation path selection method based on NFC and path capacity limitation | |
| CN106302235B (en) | A kind of spatial network method for routing adaptive based on Load-aware flow dynamics | |
| Municio et al. | Continuous athlete monitoring in challenging cycling environments using IoT technologies | |
| CN102572721B (en) | Mobility management method, system and equipment for group terminals | |
| CN103634868B (en) | Mixing distribution method in opportunistic network and device | |
| CN103228008A (en) | Method for protecting source position privacy based on dynamic confusion ring in wireless sensor network | |
| CN114071560B (en) | Network optimization method, device and storage medium | |
| CN110446274A (en) | A kind of method and device that tunnel is established | |
| CN102413471B (en) | Networking method of wireless grid sensor based on link stability estimation | |
| CN212086504U (en) | Small-area fusion wide-narrow-band communication system based on mobile communication and wireless talkback |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |