Summary of the invention
Embodiments provide with relaying emergency system and network communication path system of selection thereof frequently, only need same single-frequency point can set up a set of wireless emergency communication network, the problem that wireless networking fast and effeciently cannot set up good network communication path at short notice can be solved.
A kind of network communication path system of selection with frequency relaying emergency system that the embodiment of the present invention provides, be applied to in frequency relaying emergency system, described same relaying emergency system frequently comprises multiple handheld terminal and multiple same linking up station frequently, described have forwarding capability with frequency linking up station, without traditional fixed base stations, possess flexible mobility and portability.Multiple described with frequently setting up group-net communication between linking up station, communicate to connect between described handheld terminal and described same frequency linking up station, comprising:
Obtain the signal strength of described each networking node with frequency linking up station;
Obtain the error rates of data of described each networking node with frequency linking up station;
The communication path of described networking is confirmed according to described signal strength and described error rates of data.
Alternatively, confirm that the communication path of described networking specifically comprises according to described signal strength and described error rates of data:
The mode of transmission delay is adopted to upgrade optimum networking node according to described signal strength and described error rates of data;
Connecting described optimum networking node is new communication path.
Alternatively, adopt the mode of transmission delay to upgrade optimum networking node according to described signal strength and described error rates of data specifically to comprise:
Within the time cycle of presetting, contrast the described signal strength of networking node described in each, obtain the first networking node priority order;
Within the described time cycle, contrast the described error rates of data of networking node described in each, obtain the second networking node priority order;
Described optimum networking node is obtained according to described first networking node priority order and described second networking node priority order.
Alternatively, obtain described optimum networking node according to described first networking node priority order and described second networking node priority order specifically to comprise:
The numerical priority value of described first networking node priority order is multiplied by the first default weight, obtains the first numerical value;
The numerical priority value of described second networking node priority order is multiplied by the second default weight, obtains second value;
Determine that described first numerical value and the maximum described networking node of second value sum are optimum networking node.
Alternatively, the mode of employing transmission delay also comprises before upgrading optimum networking node according to described signal strength and described error rates of data:
Judge whether described signal strength and the described error rates of data of the networking node of current described communication path all meet default transmission conditions, if not, then the step adopting the mode of transmission delay to upgrade optimum networking node according to described signal strength and described error rates of data is performed.
The one that the embodiment of the present invention provides is with frequency relaying emergency system, comprise multiple handheld terminal and multiple same linking up station frequently, multiple described with frequently setting up group-net communication between linking up station, communicate to connect between described handheld terminal and described same frequency linking up station, described same relaying emergency system frequently also comprises:
Field intensity acquisition module, for obtaining the signal strength of described each networking node with frequency linking up station;
Error rate acquisition module, for obtaining the error rates of data of described each networking node with frequency linking up station;
Communication path confirms module, for confirming the communication path of described networking according to described signal strength and described error rates of data.
Alternatively, described communication path confirms that module specifically comprises:
Updating block, upgrades optimum networking node for adopting the mode of transmission delay according to described signal strength and described error rates of data;
Linkage unit is new communication path for connecting described optimum networking node.
Alternatively, described updating block specifically comprises:
First priority unit, for contrasting the described signal strength of networking node described in each within the time cycle of presetting, obtains the first networking node priority order;
Second priority unit, for contrasting the described error rates of data of networking node described in each within the described time cycle, obtains the second networking node priority order;
Optimum node subelement, for obtaining described optimum networking node according to described first networking node priority order and described second networking node priority order.
Alternatively, described optimum node subelement specifically comprises:
First numerical value junior unit, for the numerical priority value of described first networking node priority order is multiplied by the first default weight, obtains the first numerical value;
Second value junior unit, for the numerical priority value of described second networking node priority order is multiplied by the second default weight, obtains second value;
Node determination junior unit, for determining that described first numerical value and the maximum described networking node of second value sum are optimum networking node.
Alternatively, described communication path confirms that module also comprises:
Whether judging unit, all meet default transmission conditions for the described signal strength and described error rates of data judging the networking node of current described communication path;
Trigger element, for when the judged result of described judging unit is no, then triggers described updating block.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
In the embodiment of the present invention, first, the signal strength of described each networking node with frequency linking up station is obtained; Then, the error rates of data of described each networking node with frequency linking up station is obtained; Finally, the communication path of described networking is confirmed according to described signal strength and described error rates of data.In embodiments of the present invention, networking can be made fast and effeciently to set up good network communication path at short notice, and guarantee signal of communication field intensity and error rates of data, constructing communication network is reliable.
Embodiment
Embodiments providing with relaying emergency system and network communication path system of selection thereof frequently, fast and effeciently cannot set up the problem of good network communication path for solving networking at short notice.
For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, the embodiments described below are only the present invention's part embodiments, and the embodiment of not all.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, in the embodiment of the present invention, a kind of network communication path system of selection embodiment with frequency relaying emergency system comprises:
101, the signal strength of this same each networking node of linking up station is frequently obtained;
Set up in the network of group-net communication between this same frequency linking up station multiple, the signal strength of this same each networking node of linking up station frequently can be obtained.
102, the error rates of data of this same each networking node of linking up station is frequently obtained;
In addition, the error rates of data of this same each networking node of linking up station frequently can also be obtained.
103, the communication path of this networking is confirmed according to this signal strength and this error rates of data.
After the signal strength getting each networking node and error rates of data, the communication path of this networking can be confirmed according to this signal strength and this error rates of data.
In the present embodiment, first, the signal strength of this same each networking node of linking up station is frequently obtained; Then, the error rates of data of this same each networking node of linking up station is frequently obtained; Finally, the communication path of this networking is confirmed according to this signal strength and this error rates of data.In the present embodiment, networking can be made fast and effeciently to set up good network communication path at short notice, and guarantee signal of communication field intensity and error rates of data, constructing communication network is reliable.
For ease of understanding, below a kind of network communication path system of selection with frequency relaying emergency system in the embodiment of the present invention is described in detail, refer to Fig. 2, in the embodiment of the present invention, a kind of another embodiment of network communication path system of selection with frequency relaying emergency system comprises:
201, the signal strength of this same each networking node of linking up station is frequently obtained;
Set up in the network of group-net communication between this same frequency linking up station multiple, the signal strength of this same each networking node of linking up station frequently can be obtained.Be understandable that, this networking is made up of multiple node, the signal strength difference all to some extent of each networking node, and this situation is then more outstanding in disaster area.In order to ensure the Optimality of the last communication path set up, need the signal strength obtaining each networking node, so that subsequent analysis.
202, the error rates of data of this same each networking node of linking up station is frequently obtained;
In addition, the error rates of data of this same each networking node of linking up station frequently can also be obtained.Be understandable that, in this networking, the possibility of error of transmission all may be there is between every two networking nodes, error rates of data between every two networking nodes is all not identical, by getting the error rates of data (error rate communicated with between other networking node) of each networking node, whether outstandingly then can obtain this networking joint behavior, and the error rate of this networking node and which node communication is minimum.
203, judge whether this signal strength and this error rates of data of the networking node of this communication path current all meet default transmission conditions, if so, then perform step 204, if not, then perform step 205;
After the signal strength getting each networking node and error rates of data, can judge whether this signal strength and this error rates of data of the networking node of this communication path current all meet default transmission conditions, if so, then perform step 204, if not, then step 205 is performed.Being understandable that, after a communication path is set up, if the communication quality of this communication path is good, even if there is better communication path to select, also without the need to changing, ensureing continuation and the stability of communication.Therefore, whether can all meet default transmission conditions by this signal strength and this error rates of data judging the networking node of this communication path current and whether determine current communication path " excellent ", if, then can maintain current communication path, otherwise perform step 205, upgrade current communication path, to ensure communication quality.
204, this communication path current is maintained;
If this signal strength of the networking node of this communication path current and this error rates of data all meet default transmission conditions, then maintain this communication path current.
205, the mode of transmission delay is adopted to upgrade optimum networking node according to this signal strength and this error rates of data;
If this signal strength of the networking node of this communication path current and this error rates of data all do not meet default transmission conditions, then the mode of transmission delay is adopted to upgrade optimum networking node according to this signal strength and this error rates of data.
It should be noted that, wherein, the step adopting the mode of transmission delay to upgrade optimum networking node according to this signal strength and this error rates of data specifically can comprise:
1, within the time cycle of presetting, contrast this signal strength of each this networking node, obtain the first networking node priority order; Be understandable that, this first networking node priority order contains the sequence of each this networking node, before what signal strength was stronger come, after what signal strength was more weak come.
2, within this time cycle, contrast this error rates of data of each this networking node, obtain the second networking node priority order; Be understandable that, this second networking node priority order contains the sequence of each this networking node, before what the error rates of data of networking node was lower come, after what error rates of data was higher come.
3, this optimum networking node is obtained according to this first networking node priority order and this second networking node priority order.It should be noted that, this step 3 specifically can comprise:
31, the numerical priority value of this first networking node priority order is multiplied by the first default weight, obtains the first numerical value;
32, the numerical priority value of this second networking node priority order is multiplied by the second default weight, obtains second value;
33, determine that this first numerical value and maximum this networking node of second value sum are optimum networking node.
Wherein, this numerical priority value can for determine according to ranking, what such as make number one is 10, second is the 9, three is 8 ... also can calculate in conjunction with the specific performance of networking node, such as, in the first networking node priority order, the signal strength of ranking first is 100dB, and that ranking second is 50dB, then the numerical priority value of the networking node of this ranking first is 100*10=1000, and the numerical priority value of the networking node of ranking second is 50*9=450.The determination of this numerical priority value can need determine according to different actual conditions, as long as ensure that numerical priority value that networking node more forward in priority orders is corresponding more greatly.
206, connecting this optimum networking node is new communication path.
After the optimum networking node of renewal, can connect this optimum networking node is new communication path.
For ease of understanding, the embodiment described by Fig. 2, is described a kind of network communication path system of selection with frequency relaying emergency system in the embodiment of the present invention with a practical application scene below:
(1) system survey
This technology is based on single-frequency link, time-division self-organizing network mode of operation theory, under emergency condition is provided, and the relaying automatic network-building communication of digital same-frequency direct mode operation.It integrates many features such as single frequency, direct communication pattern, automatically identification, automated wireless multistage redirect networking call, by traditional terminal direct connection mode of operation (among a small circle), the new-type function of continuous enhancing, carry out and automatically identify relaying, multistage redirect, the reliability expanding communication range, improve network, achieve local (among a small circle) call automatically flexibly to jump UNICOM with wide area (on a large scale) and talk about, for earthquake relief work (fire fighting) etc. in particular cases provides brand-new reliable digital emergency communication private network.
(2) structure composition:
1) handheld terminal:
Possesses call function.
2) vehicle-mounted/backpack/portable with frequency linking up station:
Possess wireless relay forwarding capability and call function.
3) design feature
Native system networking network element is mobile station terminal (handheld terminal, vehicle-mounted/backpack/portable with frequency linking up station), without traditional fixed base stations, signal relay forwarding function is directly responsible for by vehicle-mounted/backpack/portable same linking up station frequently, network settings are simple, networking flexibility.
(3) principle is realized
3.1 key components
The key component possessing the radio station of relay function is link control module, channel controller and link transmit-receive module:
1) link control module
Link control module is the key component of this development project, its major function comprise control link transceiver module, the modulates baseband signals demodulation of link, GPS slot synchronization, the compression coding and decoding of voice signal, link intelligence MANET algorithm, voice-and-data Channel Sharing control, carry out data interaction etc. with channel controller.
2) channel controller
Channel controller is responsible for local modulates baseband signals demodulation, DA compatibility controls, with Broadcast Control system, possesses the Interface Expanding function of wired networking simultaneously, can interconnect with the system of other standards easily.
3) link transmit-receive module
Link transmit-receive module adopts general IQ orthogonal differential signal interface, completes the mutual translation function of link baseband signal and radiofrequency signal.
3.2 key technology
1) relaying/speech only needs single frequency
Channel module arranges single frequency, and relaying and speech work with frequency, in order to avoid conflict, slot synchronization is carried out by GPS simultaneous techniques in each radio station, adopt TDMA mode to carry out time-division transmitting-receiving, whole network can adopt single frequency point to complete link networking and voice conversation, greatly saves frequency resource.
2) link intelligent networking technology
Link intelligent networking technology is based on the unique id number of the whole network and on-site signal state, by intelligent MANET algorithm, before per call is set up, complete link networking rapidly, have that networking is quick, real-time good, the advantage such as the large and wide coverage of strong adaptability, flexibility ratio.
As shown in Figure 3, this technology can build the wireless network of various structure easily.Such as, B, C, D, E station can form chain-shaped network, A, B, F, G, D station can form loop network, and A, B, C, D, F, G station can form Star Network, and networking mode goes for the industries such as public security, railway, subway, aviation, airport, water conservancy, fire-fighting so flexibly.
3) GPS is with broadcasting technology
Wireless common-frequency simulcasting refer to set up in a region multiple with intermediate station frequently, and utilizing link to be coupled together by these intermediate stations, the covering of certain limit is responsible for by each intermediate station, uses same frequency, send the voice from same information source or data simultaneously, be also synchronized transmissions or accurate synchronized transmissions.Just can cover multiple great Qu by a frequency simultaneously, and the same information of energy synchronized transmissions, system saving resource, terminal equipment is simple.
GPS uses the absolute time of gps satellite signal as calibrating signal with technology of broadcasting, and achieves the carrier frequency synchronization of radiofrequency signal on the one hand, realizes the Phase synchronization of baseband signal on the other hand, thus realizes the common-frequency simulcasting of wireless signal.This technology can solve many technical problems that the smoothed net of hand platform and handover bring effectively, strengthens system application adaptability.
Due to the scarcity of frequency spectrum resource and the deterioration of wireless communications environment, wireless common-frequency broadcasting system is few with its acquisition frequency, coverage is large, smoothed net, invest the features such as low, networking is fast, is widely applied in recent years in the professional wireless communication networks such as public security, fire-fighting, City Emergency Linkage Control System.
4) speech coding technology
Due to the limited bandwidth of wireless link, message transmission rate is lower, if do not carry out compressed encoding to voice signal just cannot transmit at all, pass through the research to multiple voice coding techniques and contrast, the design finally have employed AMBE speech coding technology, AMBE speech coding algorithm is a kind of low bit rate based on multi band excitation model, high performance speech compression coding algorithm, not only code check is low for it, the naturalness effect of excellent phonetic synthesis can be kept simultaneously under low baud rate, also there is good anti-background noise ability.If add FEC forward error correction coding, the error correction can carrying out to a certain degree to channel error code, is extremely suitable for private radio communication and requires that low speech encoding rate is applied.
(4) networking mode
4.1 terminals are with direct-connected communication frequently
Handheld terminal itself possesses direct-connected function, need not get final product communication by linking up station.
4.2 single relaying local networkings
Handheld terminal can by vehicle-mounted with the communication context of linking up station expansion frequently, and same linking up station frequently bears relaying action, self also can participate in call simultaneously.During terminal a speech, on the one hand direct signal is sent to terminal b, on the other hand, due to environment distance, directly and terminal c direct communication, then can not relays to terminal c by linking up station A.
The networking of the local of relaying more than 4.3
Multiple stage puts pattern with frequency linking up station by different, increases coverage effect further.Handheld terminal can select optimum adapter path automatically, as Fig. 4, terminal a and b call is by linking up station A or by linking up station A and B two paths, and now system can carry out sentencing being selected from and dynamicly selects optimal route, namely only can be realized the call of a and b by linking up station A.
4.4 relaying wide area networkings
For realizing comparatively large coverage, by overhead with frequency linking up station, the vehicle-mounted mode supplementary with linking up station frequently realizes wide area networking, and in same coverage, handheld terminal can select optimum adapter path automatically.As Fig. 5, handheld terminal a, b and c are in overhead linking up station and the vehicle-mounted coverage with frequency linking up station, a and c call can be selected by vehicle radio station A and B automatically, do not need by overhead same linking up station frequently.
Multiple overhead with frequently linking up station with multiplely vehicle-mountedly by different compound modes with linking up station frequently, different coverage effects can be realized, group-network construction can be adjusted as required, form city-level, the wide scope communication network such as provincial.
(5) important technological parameters and index:
The full section of operating frequency: U/V, adopt single-frequency direct mode operation, relaying and speech only need the frequency of a 25KHz.
(6) scope of application and purposes
This technology is applicable to: fire-fighting, public security organs, procuratorial organs and people's court People's Armed Police, the special command dispatching system of radio communication of customs, army, electric power, water conservancy, railway etc.
Dimension moral digital single-frequency time-division rotation contact system is configured by different combinations with frequency linking up station based on multiple stage, the solution of Emergency Communications Network is set up in conjunction with actual conditions, wide area can adopt overhead same link terminal frequently reach the object covering communication on a large scale, can adopt in some areas and with frequency linking up station, the conventional dead angles such as indoor, high building gap be covered, this technology possesses high degree of flexibility and networking simplicity, is the novel solution of emergent radio communication.
The main network communication path system of selection describing a kind of same relaying emergency system frequently above, be described in detail to the same frequency relaying emergency system of this network communication path system of selection of a kind of application below, refer to Fig. 6, in the embodiment of the present invention, a kind of same relaying emergency system embodiment frequently comprises:
A kind of same frequency relaying emergency system, comprise multiple handheld terminal and multiple same frequency linking up station, multiple this sets up group-net communication with between frequency linking up station, communicates to connect between this handheld terminal and this same frequency linking up station, and this same relaying emergency system frequently also comprises:
Field intensity acquisition module 601, for obtaining the signal strength of this same each networking node of linking up station frequently;
Error rate acquisition module 602, for obtaining the error rates of data of this same each networking node of linking up station frequently;
Communication path confirms module 603, for confirming the communication path of this networking according to this signal strength and this error rates of data.
In the present embodiment, first, field intensity acquisition module 601 obtains the signal strength of this same each networking node of linking up station frequently; Then, error rate acquisition module 602 obtains the error rates of data of this same each networking node of linking up station frequently; Finally, communication path confirms that module 603 confirms the communication path of this networking according to this signal strength and this error rates of data.In the present embodiment, networking can be made fast and effeciently to set up good network communication path at short notice, and guarantee signal of communication field intensity and error rates of data, constructing communication network is reliable.
For ease of understanding, below a kind of network communication path system of selection with frequency relaying emergency system in the embodiment of the present invention is described in detail, refer to Fig. 7, in the embodiment of the present invention, a kind of another embodiment of network communication path system of selection with frequency relaying emergency system comprises:
A kind of same frequency relaying emergency system, comprise multiple handheld terminal and multiple same frequency linking up station, multiple this sets up group-net communication with between frequency linking up station, communicates to connect between this handheld terminal and this same frequency linking up station, and this same relaying emergency system frequently also comprises:
Field intensity acquisition module 701, for obtaining the signal strength of this same each networking node of linking up station frequently;
Error rate acquisition module 702, for obtaining the error rates of data of this same each networking node of linking up station frequently;
Communication path confirms module 703, for confirming the communication path of this networking according to this signal strength and this error rates of data.
In the present embodiment, this communication path confirms that module 703 specifically can comprise:
Updating block 7031, upgrades optimum networking node for adopting the mode of transmission delay according to this signal strength and this error rates of data;
Linkage unit 7032 is new communication path for connecting this optimum networking node.
In the present embodiment, this updating block 7031 specifically can comprise:
First priority unit 70311, for contrasting this signal strength of each this networking node within the time cycle of presetting, obtains the first networking node priority order;
Second priority unit 70312, for contrasting this error rates of data of each this networking node within this time cycle, obtains the second networking node priority order;
Optimum node subelement 70313, for obtaining this optimum networking node according to this first networking node priority order and this second networking node priority order.
In the present embodiment, this optimum node subelement 70313 specifically can comprise:
First numerical value junior unit 3131, for the numerical priority value of this first networking node priority order is multiplied by the first default weight, obtains the first numerical value;
Second value junior unit 3132, for the numerical priority value of this second networking node priority order is multiplied by the second default weight, obtains second value;
Node determination junior unit 3133, for determining that this first numerical value and maximum this networking node of second value sum are optimum networking node.
In the present embodiment, this communication path confirms that module 703 can also comprise:
Whether judging unit 7033, all meet default transmission conditions for this signal strength and this error rates of data judging the networking node of this communication path current;
Trigger element 7034, for when the judged result of this judging unit is no, then triggers this updating block 7031.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc or CD etc. various can be program code stored medium.
The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.