CN102158878A - Information treatment system based on broadband wireless access technology - Google Patents
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Abstract
The invention discloses an information treatment system based on a broadband wireless access technology. The system comprises a frequency spectrum monitoring subsystem, a command control subsystem, a single-soldier information subsystem, an information transmission subsystem, a security secrecy subsystem and an information sharing subsystem, wherein the frequency spectrum monitoring subsystem is used for monitoring and controlling the interfering frequency, and selecting the central frequency of each base station of the information treatment system; the command control subsystem is used for receiving and storing information related to anti-terrorist and fight, wherein the information comprises voice data and video data of anti-terrorist fighting staff; the single-soldier information subsystem is used for single-soldier voice and video data collection and processing and displaying obtained information from the command control subsystem; the information transmission subsystem is respectively connected with the command control subsystem, the single-soldier information subsystem and the security secrecy subsystem, and is used for realizing the communication among each subsystem; the security secrecy subsystem is used for encrypting all the information; and the information sharing subsystem is used for audio and video as well as format massage information sharing among single soldiers. By utilizing the system provided by the invention, the information collection, transmission, treatment and display efficiency are realized.
Description
Technical field
The present invention relates to the network security technology field, relate in particular to a kind of fight-terrorism warfare information processing system based on wireless access wide band technology.
Background technology
Along with being becoming increasingly rampant of the world, domestic terrorist activity, the frequent generation of natural calamity, the serious threat people life property safety affects the quiet harmonious living environment of people.How tackling all contingent accident whenever and wherever possible, is a difficult problem of pendulum in face of country's decision-making and security department.
Be solution of emergent event, there is corresponding emergency preplan in country at present, sets up the specialized agency based on the processing accident of People's Armed Police special police army, can respond all kinds of accidents fast.At each accident, all relate to diversified functions such as on-the-spot situation information gathering, information processing, communication, command and control, satisfy the integration requirement that People's Armed Police special police army handles incident in the burst area.For a long time, traditional anti-terrorism command means is to be based upon on my army's prior art strength, though through for many years accumulation and development, also be equipped with some Hi-Tech equipments, mainly is to adopt following settling mode; 1, emphasis is based on weaponry, and equipment all independently uses; 2, at present between individual soldier and the commander communication mainly based on speech, use be civilian talk back equipment or a spot of organized equipment, data possess certain arrowband ability, data communication mostly is the point-to-point communication mode, relativity of information is few, does not possess networking capability; What 3, the individual soldier mainly carried is weapon and a spot of communication equipment, does not have information processing capability substantially; 4, accuse that the floor manager means are few mainly based on speech, disposal ability is limited, and respond is poor; 5, contact with foreign countries means are based on outside line and mobile phone, and the coordination ability is poor.
By the investigation to People's Armed Police special police army's existing weaponry and equipment and operation pattern, special policeman's fight-terrorism warfare has had certain fight capability, also possesses the part Hi-Tech equipment.But As time goes on, various new technologies are maked rapid progress, and particularly the high speed development of information technology and the communication technology are advanced by leaps and bounds, and special policeman's existing weaponry and equipment falls behind already, can't satisfy the mode of operation under the new situation, and its major defect is as follows:
A) system information level deficiency does not possess the fusion of multi-source information, the figure of army plotting, the contour technological means of intelligent aid decision;
B) based on narrow band communication, message capacity is low, and the bearer service kind is few;
C) individual soldier is equipped for the master with carrying arms, does not possess information processing capability substantially;
D) a little less than the networking capability, on-the-spot situation information can't be shared;
E) a little less than the charge ability, from situation information gathering, processing, share, merge and the no total solution of decision-making;
F) do not possess overall process recording, video recording, inconvenient assessment after the war.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is: the efficient that how to improve information gathering, transmission, processing and demonstration.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of fight-terrorism warfare information processing system based on wireless access wide band technology, comprising:
The spectrum monitoring subsystem, in order to the monitor interference frequency, choose the centre frequency of each base station of information processing system, described spectrum monitoring subsystem comprises frequency scanning module, scanning memory module, frequency analysis module and GPS location and synchronization module, and wherein said frequency scanning module is used for determining monitoring frequency, systemic resolution, scanning initial frequency and stops frequency; The scanning memory module is used to store the interfering frequency of work at present frequency and monitoring; The work centre frequency that described frequency analysis module is used to analyze the interfering frequency of monitoring and determines each base station; Described GPS location and synchronization module are used for determining in real time all devices of individual soldier position and synchro system;
Individual soldier's information subsystem comprises that individual soldier's computer, handshaking controller, modulator-demodulator, Video Codec, earphone microphone group, camera and display, rifle take aim at interface, individual soldier's power supply; Described individual soldier's computer, modulator-demodulator, Video Codec, earphone microphone group, camera, display, rifle are taken aim at interface and are connected with the handshaking controller respectively with individual soldier's power supply; Wherein the handshaking controller for described individual soldier's information subsystem provide unified signal alternately be connected, camera and earphone microphone group are carried out live video and audio collection respectively, and the data of collection are selected to be sent to individual soldier's computer and message transmission subsystem via the handshaking controller; Described individual soldier's computer is used for the individual soldier scene and carries out processing, the storage of data such as video, battlefield GIS and strategic point plotting and the information sharing of carrying out audio, video data and formatted data message by the information sharing subsystem between the individual soldier; Described modulator-demodulator is used to transmit the modulation and demodulation of data, and Adaptive Modulation is adopted in described modulation; Described Video Codec is used for the data that will transmit are encoded, compressed, and the message transmission after will encoding is to message transmission subsystem, and error correction coding and MPEG-4 compression algorithm are adopted in described coding and compression respectively; Described rifle is taken aim at interface and is used to insert rifle and takes aim at video; Described display is used for the operation information of indicating command control subsystem transmission or the audio frequency and video or the formatted data message information of information sharing subsystem transmission;
Message transmission subsystem, be connected with spectrum monitoring subsystem, individual soldier's information subsystem, command control subsystem and safe and secret subsystem respectively, described message transmission subsystem comprises base station control unit, base station unit, voice gateways, individual soldier hand-held transmission terminal, channel quality detection equipment and antenna; Described base station control unit is used for system business is registered, changes, stored, and comprises that the individual soldier's information subsystem to inserting authenticates and registration management; Described base station unit is used to realize the message transmission of command control subsystem and the hand-held transmission terminal of individual soldier, and according to the definite centre frequency work of spectrum monitoring subsystem; Described voice gateways are used for system business priority management, inner exchange of speech and outgoing route; The hand-held transmission terminal of described individual soldier is a Wireless Telecom Equipment, is used for two-way broadband data, voice and video transmitting-receiving; Modulator-demodulator and Video Codec that described channel quality detection equipment is used to detect the up-downgoing channel quality and testing result is passed to individual soldier's information subsystem; Described audio, video data message transmission adopts code spread orthogonal frequency division multiple access (CS-OFDMA) broadband access technology, and adopts real-time transport protocol (rtp);
Command control subsystem adopts Multiuser Detection and space-time joint detection technique to receive and comprises individual soldier's speech data and video data; Described command control subsystem comprises server, be used for the audio, video data information that receives is handled and merged, described processing comprises demodulation, decoding, the deciphering of butt joint receipts data, and described fusion comprises and will offer commander's control terminal with the information from other command car, scout car or Harassment Vehicle from the information that individual soldier's information subsystem receives; Commander's control terminal is used to provide various situation figures, data base querying, human-computer interaction function; System manager terminal is used for system equipment and software are carried out Stateful Inspection, system configuration, port arrangement and Network Management Function; Memory is used for handled audio, video data is stored;
Safe and secret subsystem is used for information transmitted is encrypted, and described encryption comprises that terminal encryption, link encryption and key distribute automatically;
The information sharing subsystem is used for carrying out sharing of voice, video and formatted data message information between the individual soldier, described sharing mode adopts the individual soldier to individual soldier's transmission means and by the transmission means of command control subsystem relaying;
Backup subsystem is used for the server of command control subsystem and the individual soldier's computer in individual soldier's information subsystem and handshaking controller are carried out redundancy backup, switches to alternate device when equipment fault;
The frequency scanning scope of described frequency scanning module is 400-430MHz, 700-740MHz;
Described channel quality detection equipment adopts instantaneous signal-to-noise ratio (SNR) to weigh channel quality;
Described Adaptive Modulation is carried out Dynamic Selection according to the channel quality that is detected in QPSK, 8PSK, QAM16, QAM64;
The coding of described Video Codec is to adopt turbo sign indicating number or LDPC sign indicating number respectively according to corresponding modulation system, channel quality;
Described display is head-mounted display or wrist formula display;
DES or AES cryptographic algorithm are adopted in described encryption;
Described message transmission adopts intelligent antenna technology.
(3) beneficial effect
The present invention is by the real-time, interactive and teleinformatic the sharing of the situation such as live voice, data, video and the information of charge, for accurate commander provides basic guarantee; Electronics is marked and drawed and has been changed traditional document operational commanding pattern, has improved operational commanding efficient; System can realize and the mutual and fusion of information such as the existing comprehensive command car of People's Armed Police, technical search car, Harassment Vehicle, realize the integrated use of on-the-spot various means; Collect in the time of various information and distribution as required, realize the battlefield one-way transparent; The Integrated Services Transmission platform of networking has improved Cooperative Engagement Capability greatly.Adopt technological incorporation such as CS-OFDMA, error correction coding, smart antenna, improved the integrated information supportability under the complex environment.The level of integrated system height is widely used.
Description of drawings
Fig. 1 is an information processing system structural representation of the present invention;
Fig. 2 is the structural representation of spectrum monitoring subsystem of the present invention;
Fig. 3 is the structural representation of command control subsystem of the present invention;
Fig. 4 is the structural representation of individual soldier's information subsystem of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, system of the present invention comprises: the spectrum monitoring subsystem, in order to the monitor interference frequency, choose the centre frequency of each base station of information processing system; Command control subsystem, the information of be used to receive, storage is relevant with fight-terrorism warfare, described information comprises fight-terrorism warfare personnel's speech data and video data; Individual soldier's information subsystem is used for the individual soldier and gathers voice and video data and will processing and displaying from the information that command control subsystem obtains; Message transmission subsystem is connected with command control subsystem, individual soldier's information subsystem and safe and secret subsystem respectively, is used to realize the communication between each subsystem; Safe and secret subsystem is used for described information is encrypted; And the information sharing subsystem, be used between the individual soldier, carrying out audio frequency and video and data information sharing.In addition, described information processing system also comprises the information sharing subsystem, be used between the individual soldier, carrying out voice, sharing of video and formatted data message information, described sharing mode adopts the individual soldier to individual soldier's transmission means and by the transmission means of command control subsystem relaying, this shared Sub system can realize by hardware or software mode in individual soldier's information subsystem and command control subsystem in actual applications, for example can in individual soldier's computer, audio frequency and video and Word message be transmitted to other individual soldiers, also can be forwarded to other belligerent personnel according to the order of importing by the server of command control subsystem by manual setting of individual soldier and operation; Backup subsystem is used for the server of command control subsystem and the individual soldier's computer in individual soldier's information subsystem and handshaking controller are carried out redundancy backup, can switch to alternate device when equipment fault, to improve the reliability of information processing.
As shown in Figure 2, described spectrum monitoring subsystem comprises frequency scanning module, scanning memory module, frequency analysis module and GPS location and synchronization module, and wherein said frequency scanning module is used for determining monitoring frequency, systemic resolution, scanning initial frequency and stops frequency; The scanning memory module is used to store the interfering frequency of work at present frequency and monitoring; The work centre frequency that described frequency analysis module is used to analyze the interfering frequency of monitoring and determines each base station; Described GPS location and synchronization module are used for determining in real time all devices of individual soldier position and synchro system; Described frequency scanning scope is 400-430MHz and 700-740MHz, promptly determine the scanning initial frequency and stop frequency, scan the central frequency resource of two band frequencies respectively and disturb frequency, and choose the operating frequency of the bandwidth frequency range of interval 5MHz respectively as each base station.
As shown in Figure 3, command control subsystem adopts typical server/client (S/C) structure.Server is an external information hinge in processing center, data center and the system of system, accuses that seat (client computer) finishes all kinds of demonstrations and man-machine interaction, and server constitutes local area network (LAN) with accusing the seat.Server is pressed multimachine assembly (two-shipper at least) design, finish the work balanced and the fault migration, accuse the seat employing unified platform and software, interchangeable between the seat, can recombinate, server and seat quantity can increase and decrease as required immediately, improve system availability, reliability and extensibility.
Command control subsystem comprises server: form by the group system that 2 above high-performance computers constitute, be responsible for system's real time information and handle, database application and and external system between information exchange.Cluster server externally provides single overall impression, can back up mutually between inner each station server, task is switched, load balancing.Cluster server can provide real time data backup, the task immigration strategy of different stage at different application, can realize remote monitoring and management, for the remote maintenance and the upgrading of system provides the basis.According to application demand and reliability index requirement, for the server of the system configuration varying number of different stage constitutes cluster.
Described server is used for the audio, video data information that receives is handled and merged, described processing comprises the demodulation of butt joint receipts data, decoding, deciphering, described fusion comprises will be from the information of individual soldier's information subsystem reception and from other command car, the information of scout car or Harassment Vehicle offers commander's control terminal together, according to processing and fusion results the state and the attribute of Operation Target are analyzed, thereby to the assessment of impending property of Operation Target, described analysis and assessment can realize based on existing operation aid decision-making system and multi-sensor information fusion technology, subsequently analysis result and assessment are sent to the individual soldier.
Command control subsystem also comprises system manager terminal: can carry out the supervision, system configuration, communication port configuration, network management of equipment and software, to superior system monitoring report native system state, the installation system monitoring software and the network management software, the result of system management can write down, inquire about for analysis.
Command control subsystem also comprises commander's control terminal, and functions such as various situation figures, data base querying, man-machine interaction are provided.Each terminal software configuration consistency, the user can change terminal attribute as required.
Command control subsystem also comprises memory (accompanying drawing is not shown), is used for handled voice, video and formatted data message are stored;
In addition, described command control subsystem can also be transmitted (relaying) to other individual soldiers or action group and shares so that the detailed information support and the enemy's situation or the dangerous situation of on-the-spot different azimuth to be provided being received from certain individual soldier's audio, video data and formatted data message, judges so that each group makes more accurately.
Described command control subsystem adopts space-time unite detection technique and enhancement mode zero limit technology.Improve power and frequency spectrum utilization ratio, weaken interference, make the received signal quality optimization.Significantly improve the equipment antijamming capability.When a plurality of individual soldier users take action, can adopt multiuser detection to handle a plurality of individual soldier's information simultaneously, improve the information processing efficiency of system.
According to user requirements analysis, adopt the capital equipment of wideband transmission system as message transmission subsystem.This system is on the basis of existing wireless access technology accumulation, introduce a series of advanced persons' key technology and design concept, as CS-OFDMA (Code Spread-Orthogonal Frequency Division Multiplexing Access, the code spread orthogonal frequency division multiple access), channel tracking and Predicting Technique, Adaptive Modulation etc.) and the broadband integrated wireless access system of research and development.
The message transmission subsystem capital equipment comprises network management system (base station control unit), central station, outdoor unit (base station unit) and terminal equipment (individual soldier hands transmission terminal), channel quality detection equipment and antenna element.Message transmission subsystem is realized the group calling function based on the DSCH Downlink Shared Channel of air interface, and is abundanter aspect phonetic function, realized that right of speech is seized, intrusion, toll breakdown, dynamic a series of functions of reorganization or the like.Aspect phonetic function and performance two all no less than the conventional digital group system.When phonetic function was provided, message transmission subsystem also provided the wideband data access service for all terminals in the overlay area.
Three central stations carry out unified management by IP network by network management system.Central station and speech controller can be finished various voice, data and video capability.Remote subscriber (individual soldier) is realized the single, double to transmission of the transmitted in both directions of voice and video by terminal equipment.
Described gateway system (base station control unit) is used for system business is registered, changes, stored, and comprises that the individual soldier's information subsystem to inserting authenticates and registration management; Described base station unit is used to realize the synchronous and message transmission of command control subsystem and the hand-held transmission terminal of individual soldier, and according to the definite centre frequency work of spectrum monitoring subsystem; Described voice gateways are used for system business priority management, inner exchange of speech and outgoing route; It is Wireless Telecom Equipment that described individual soldier hands transmission terminal (being carried by the individual soldier), is used for two-way broadband data, voice and video transmitting-receiving; The associated components that described channel quality detection equipment is used to detect the up-downgoing channel quality and testing result is passed to individual soldier's information subsystem;
Described message transmission adopts technology such as code spread orthogonal frequency division multiple access (CS-OFDMA), software radio, and adopting real-time transport protocol (rtp) that video flowing is carried out real-time Transmission, base station antenna unit adopts intelligent antenna array to improve power system capacity and the quality that sends received signal simultaneously;
Adopt OFDM (Orthogonal Frequency Division Multiplexing, OFDM) technical antagonism frequency selective fading or narrow band interference, realize the non line of sight transmission.OFDM is the high speed transmission technology under a kind of wireless environment.The frequency response curve of wireless channel is non-flat forms mostly, and the main thought of OFDM technology is divided into many orthogonal sub-channels with given channel exactly in frequency domain, uses a subcarrier to modulate on each subchannel, and each subcarrier parallel transmission.Like this, although total channel be non-flat forms, have frequency selectivity, but each subchannel is a relatively flat, what carry out on each subchannel is narrow band transmission, and signal bandwidth is less than the respective bandwidth of channel, so the just interference between the erasure signal waveform greatly.Because the carrier wave of each subchannel is mutually orthogonal in ofdm system, so their frequency spectrum is overlapped, has so not only reduced the phase mutual interference between subcarrier, improved the availability of frequency spectrum simultaneously again.The CS-OFDMA technology organically blends OFDMA, TDMA and SCDMA and is one, can make system obtain combination property advantages such as spectral efficient, anti-fading, anti-multipath.
Software radio is with respect to traditional wireless technology based on ASIC, and it has many superiority.In the software radio message transmission subsystem, can realize the compatibility of various communications protocols, be convenient to communication technology upgrading, can introduce simultaneously multiple advanced person's dynamic development adjustment, make communication system possess great flexibility and opening, thereby improve the function and the service quality of wireless messages transmission subsystem greatly, help the enforcement and the compatibility of various communication new standards.
Individual soldier's information subsystem adopts modularized design, for the individual soldier personnel provide that on-the-spot situation information (just relevant with fight-terrorism warfare information) collection, situation show, information processing and function such as mutual, can greatly improve individual soldier personnel's comprehensive fight capability.Individual soldier personnel's on-the-spot situation collection can with battlefield information real-time pass the command and control center back, to the command and control center make in time, tactical decision plays a part very important accurately.Simultaneously, individual soldier's information subsystem also makes the individual soldier personnel can directly receive the combat order that the command and control center issues, and can greatly improve Operational Effectiveness Rat.
As shown in Figure 4, individual soldier's information subsystem comprises handshaking controller, individual soldier's power supply, modulator-demodulator, Video Codec, earphone microphone group, individual soldier's computer, video capture device (for example camera), display (head-mounted display or wrist formula display) and the shellproof carry-over tool of individual soldier (accompanying drawing is not shown).Simultaneously, system also has rifle and takes aim at multiple external interfaces such as interface, can insert rifle and take aim at equipment such as video; Wherein the handshaking controller for described individual soldier's information subsystem provide unified signal alternately be connected, camera and earphone microphone group are carried out live video and audio collection respectively, and the data of collection can be selected to be sent to individual soldier's computer and message transmission subsystem via the handshaking controller; Described individual soldier's computer is used for the individual soldier scene to carry out the processing of data such as video, battlefield GIS-Geographic Information System (GIS) and strategic point plotting, storage and carries out audio frequency and video and the formatted data message information is shared between the individual soldier by the information sharing subsystem; Described modulator-demodulator is used to transmit the modulation and demodulation of data, and Adaptive Modulation is adopted in described modulation; Described Video Codec is used for the data that will transmit are encoded, compressed, and the message transmission after will encoding is to message transmission subsystem, and error correction coding and MPEG-4 compression algorithm are adopted in described coding and compression respectively; Described display is used for the operation information of indicating command control subsystem transmission or the audio, video data and the formatted data message information of information sharing subsystem transmission.
System possesses speech, video is uploaded and receive functions such as demonstration, field data acquisition process, and wherein video capture device can be camera (for example individual soldier's camera), flexible pipe sight glass etc., and video display apparatus can be head-mounted display or wrist formula display.
By channel quality according to the channel quality detection Equipment Inspection, the modulation system that dynamically changes the up-downgoing channel is QPSK (quarternary phase-shift keying (QPSK)), 8PSK, 16QAM (quadrature amplitude modulation) and 64QAM etc., described channel quality adopts instantaneous signal-to-noise ratio (SNR) to weigh, channel quality is good more, adoptable modulation efficiency is just high more, thereby can adjust transmission rate, can adapt to the variation and the disturbance fluctuation of transmission environment, improve the entire throughput of system.
System synthesis utilization code spread orthogonal frequency division multiple access (CS-OFDMA), error correction coding and intelligent antenna technology, the antijamming capability of raising system is for the fight-terrorism warfare task provides reliable communication support.
Under conditions such as different modulation systems, channel condition, fading margin, system adopts advanced coding techniques such as Turbo code and LDPC sign indicating number, for example under the situation of high instantaneous signal-to-noise ratio, can adopt the LDPC coding, under the situation of low signal-to-noise ratio, adopt Turbo coding etc., improved the ability of anti-bursty interference.
MPEG-4 is based on higher code efficiency.Compare with other standard existing or that be about to form, under identical bit rate, it is based on higher vision acoustical quality, this just make on the channel of low bandwidth, transmit video, audio frequency becomes possibility, the video data of individual soldier's collection in worksite is bigger, and the multimedia file volume after the compression is too huge, is difficult to realize the real time communication of network, therefore in native system, adopt MPEG-4 compression algorithm efficiently, with the real-time Transmission of the audio, video data realizing being gathered.
Adopt a plurality of central stations to carry out using, realize many times of liftings of power system capacity with the car networking.
The safe and secret multiple technologies means such as automatic allocation manager of system by comprehensive employing terminal encryption, link encryption and key; realization is guaranteed the controllability of confidentiality, integrality, availability and the privacy device of native system transmission information to the omnidistance encipherment protection of cordless communication network.
Information encryption, identity are differentiated, cryptographic key management is the three big key elements that communication system security is maintained secrecy, with the cryptographic algorithm is core, by cipher protocol, key distribution protocol and authentication protocol three main point elements are organically associated, the controllability of confidentiality, integrality, availability and the privacy device of transmission information is provided for message transmission subsystem.
Privacy device is realized the link encryption and the End to End Encryption of information, for integrated service informations such as the speech of whole communication network, data, IP, image provide confidentiality services.
Password Management agreement based on cryptographic technique realizes the key and the algorithm parameter of all kinds of privacy devices in netting are managed the legal use of all kinds of privacy devices in guaranteeing to net.
The cryptographic key management system carries out cipher protocol and key distribution protocol; upwards accept the integrated management of the entire PLA to password management system; be responsible for safe and secret equipment generation such as wideband transmission system, network security privacy device, distributing key downwards; and by " blacklist " administrative skill, realize to encryption devices out of control such as losing, stolen distant ruin, the distant management of getting killed.
Described cryptographic algorithm can adopt DES or AES cryptographic algorithm, to strengthen the top secret of transmission information.
Information processing system also comprises the information sharing subsystem in addition, be used between the individual soldier, carrying out voice, sharing of video and data message, described sharing mode adopt the individual soldier to individual soldier's point-to-point transmission mode and by the transmission means of command control subsystem relaying.Backup subsystem is used for the server of command control subsystem and the individual soldier's computer in individual soldier's information subsystem and handshaking controller are carried out redundancy backup, can switch to alternate device when equipment fault.
The operation principle of system of the present invention is as follows:
With combatant's situation information uploading to command control subsystem, combatant's situation information comprises the combatant's that video capture device is gathered voice data, data information stored in image information and the individual soldier's computer, these information are encrypted the back by safe and secret subsystem and are transferred to the central station crypto by message transmission subsystem, through sending into command control subsystem again after the deciphering of central station crypto; Command control subsystem is all information record acquisitions, and information is carried out data processing and fusion, and the information after the deciphering that individual soldier's information subsystem will be obtained from command control subsystem processs and displays.
Data message can be transferred to the router of public network or People's Armed Police's private network by switch, and then be transferred to corresponding purpose terminal after authorizing in the native system; Speech information enters telephone network through voice gateway in the native system after authorizing; The flow process that the data of public network, People's Armed Police's private network or telephone network, speech information enter native system in contrast.
Task communication demands such as, rescue and relief work prominent according to anti-terrorism place, system adopts multinomial advanced persons' such as CS-OFDMA technology, software and radio technique, modulation system self adaptation and quick associated detection technique wireless communication technology, the capacity of raising system and performance are supported " communication in moving " and the big capacity concurrent communication of multi-user.The system data bandwidth can reach 15Mbps, can provide the message capacity that is not less than 1Mbps for 15 users, satisfies the demand that charge and information are shared, and really accomplishes " seeing clearly, react standard fast, that beat ".
In addition; the multiple technologies means such as automatic allocation manager that system safety is maintained secrecy and adopted terminal encryption, link encryption, key by comprehensive; realization is guaranteed the controllability of confidentiality, integrality, availability and the privacy device of native system transmission information to the omnidistance encipherment protection of cordless communication network.
As can be seen from the above embodiments, the present invention is by the real-time, interactive and teleinformatic the sharing of the situation such as live voice, data, video and the information of charge, for accurate commander provides basic guarantee; Electronics is marked and drawed and has been changed traditional document operational commanding pattern, has improved operational commanding efficient; System can realize and the mutual and fusion of information such as the existing comprehensive command car of People's Armed Police, technical search car, Harassment Vehicle, realize the integrated use of on-the-spot various means; Collect in the time of various information and distribution as required, realize the battlefield one-way transparent; The Integrated Services Transmission platform of networking has improved Cooperative Engagement Capability greatly.Adopt technological incorporation such as CS-OFDMA, error correction coding, smart antenna, improved the integrated information supportability under the complex environment.The level of integrated system height is widely used.
Above execution mode only is used to illustrate the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; under the situation that does not break away from the spirit and scope of the present invention; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (8)
1. the information processing system based on wireless access wide band technology is characterized in that, comprising:
The spectrum monitoring subsystem, in order to the monitoring interfering frequency, choose the centre frequency of each base station of information processing system, described spectrum monitoring subsystem comprises frequency scanning module, scanning memory module, frequency analysis module and GPS location and synchronization module, and wherein said frequency scanning module is used for determining monitoring frequency, systemic resolution, scanning initial frequency and stops frequency; The scanning memory module is used for the interfering frequency of stored information treatment system work at present frequency and monitoring; The work centre frequency that described frequency analysis module is used to analyze the interfering frequency of monitoring and determines each base station; Described GPS location and synchronization module are used for determining in real time all devices of individual soldier position and synchro system;
Individual soldier's information subsystem comprises that individual soldier's computer, handshaking controller, modulator-demodulator, Video Codec, earphone microphone group, camera, display, rifle take aim at interface, individual soldier's power supply; Described individual soldier's computer, modulator-demodulator, Video Codec, earphone microphone group, camera, display, rifle are taken aim at interface and are connected with the handshaking controller respectively with individual soldier's power supply; Wherein the handshaking controller for described individual soldier's information subsystem provide unified signal alternately be connected, camera and earphone microphone group are carried out live video and audio collection respectively, and the data of collection are selected to be sent to individual soldier's computer and message transmission subsystem via the handshaking controller; Described individual soldier's computer is used for the individual soldier scene and carries out processing, the storage of data such as video, battlefield GIS and strategic point plotting and the information sharing of carrying out audio, video data and formatted data message by the information sharing subsystem between the individual soldier; Described modulator-demodulator is used to transmit the modulation and demodulation of data, and Adaptive Modulation is adopted in described modulation; Described Video Codec is used for the data that will transmit are encoded, compressed, and with the message transmission after the encoding compression to message transmission subsystem, error correction coding and MPEG-4 compression algorithm are adopted in described coding and compression respectively; Described rifle is taken aim at interface and is used to insert rifle and takes aim at video; Described display is used for the operation information of indicating command control subsystem transmission or the audio frequency and video or the formatted data message information of information sharing subsystem transmission;
Message transmission subsystem, be connected with spectrum monitoring subsystem, individual soldier's information subsystem, command control subsystem and safe and secret subsystem respectively, described message transmission subsystem comprises base station control unit, base station unit, voice gateways, individual soldier hand-held transmission terminal, channel quality detection equipment and antenna; Described base station control unit is used for the business in the information processing system is registered, changes, stored, and comprises that the individual soldier's information subsystem to inserting authenticates and registration management; Described base station unit is used to realize the message transmission of command control subsystem and the hand-held transmission terminal of individual soldier, and according to the definite centre frequency work of spectrum monitoring subsystem; Described voice gateways are used for system business priority management, inner exchange of speech and outgoing route; The hand-held transmission terminal of described individual soldier is a Wireless Telecom Equipment, is used for two-way broadband data, voice and video transmitting-receiving; Modulator-demodulator and Video Codec that described channel quality detection equipment is used to detect the up-downgoing channel quality and testing result is passed to individual soldier's information subsystem; Code spread orthogonal frequency division multiple access (CS-OFDMA) broadband access technology is adopted in the audio, video data transmission, and adopts real-time transport protocol (rtp);
Command control subsystem adopts Multiuser Detection and space-time joint detection technique to receive and comprises individual soldier's speech data and video data; Described command control subsystem comprises server, be used for the audio, video data that receives is handled and merged, described processing comprises demodulation, decoding, the deciphering of butt joint receipts data, and described fusion comprises and will offer commander's control terminal with the information from other command car, scout car or Harassment Vehicle from the information that individual soldier's information subsystem receives; Commander's control terminal is used to provide situation figure, data base querying, human-computer interaction function; System manager terminal is used for information processing system equipment and software are carried out Stateful Inspection, system configuration, port arrangement and Network Management Function; Memory is used for handled audio, video data is stored;
Safe and secret subsystem is used for information transmitted is encrypted, and described encryption comprises that terminal encryption, link encryption and key distribute automatically;
The information sharing subsystem is used for carrying out sharing of voice, video and formatted data message information between the individual soldier, described sharing mode adopts the individual soldier to individual soldier's transmission means and by the transmission means of command control subsystem relaying;
Backup subsystem is used for the server of command control subsystem and the individual soldier's computer in individual soldier's information subsystem and handshaking controller are carried out redundancy backup.
2. information processing system as claimed in claim 1, wherein the frequency scanning scope of frequency scanning module is 400-430MHz, 700-740MHz;
3. information processing system as claimed in claim 1, wherein channel quality detection equipment adopts instantaneous signal-to-noise ratio (SNR) to weigh channel quality;
4. information processing system as claimed in claim 1, wherein said Adaptive Modulation are carried out Dynamic Selection according to the channel quality that is detected in QPSK, 8PSK, QAM16, QAM64;
5. information processing system as claimed in claim 1, the coding of wherein said Video Codec are to adopt turbo sign indicating number or LDPC sign indicating number respectively according to corresponding modulation system, channel quality;
6. information processing system as claimed in claim 1 is characterized in that, described display is head-mounted display or wrist formula display;
7. information processing system as claimed in claim 1 is characterized in that described encryption employing DES or AES cryptographic algorithm;
8. information processing system as claimed in claim 1 is characterized in that antenna adopts intelligent antenna technology.
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