CN201813555U - On-scene wireless communication command system in emergency rescue - Google Patents
On-scene wireless communication command system in emergency rescue Download PDFInfo
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- CN201813555U CN201813555U CN 201020298733 CN201020298733U CN201813555U CN 201813555 U CN201813555 U CN 201813555U CN 201020298733 CN201020298733 CN 201020298733 CN 201020298733 U CN201020298733 U CN 201020298733U CN 201813555 U CN201813555 U CN 201813555U
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Abstract
The utility model relates to an on-scene wireless communication command system in emergency rescue, which comprises a portable device, a multi-frequency wireless accessing and transmitting device, a wireless receiving device and a scene information processing device, wherein the portable device is used for collecting and wirelessly transmitting scene information; the wireless receiving device is connected with the scene information processing device and directly receives signals emitted by the portable device which is used for collecting and wirelessly transmitting scene information; and the multi-frequency wireless accessing and transmitting device is connected with the wireless receiving device, receives signals emitted by the portable device which is used for collecting and wirelessly transmitting scene information, and transfers received signals to the wireless receiving device. The on-scene wireless communication command system in emergency rescue can realize wireless audio and video command on disaster scene in complex environment, utilizes international advanced wireless communication technologies, combines audio and video transmission with data transmission, utilizes the concept of advanced mobile relay, is capable of avoiding wireless blockage, prolongs the length of information communication links, and enhances strength of wireless signals.
Description
Technical field
The utility model relates to a kind of wireless communication command system for emergency rescue scene.
Background technology
In recent years, along with fast growth of national economy, quickening of urbanization process, the zone in city, population, commercial scale and quantity etc. all enlarge rapidly, city function is complicated day by day, undertaking the public security fire-fighting army of disaster relief and rescue important task, disaster relief equipment in the past can not satisfy the modern complicated task of speedily carrying out rescue work, how to accomplish " fast reaction; correct decisions ", improves the efficient that the rescue of whole army speedily carries out rescue work and becomes the task key of success.Single channel information gathering under the simple environment and independently speech communication can not satisfy the demand at modern disaster relief scene, how under complex environment, the on-the-spot temporary information communication network of fast construction disaster accident, multi-angle is grasped the firsthand information of disaster front end comprehensively, avoid problems such as underground, mine, high-rise information communication obstacle, become the scientific research problem that my fire-fighting and rescue army must solve.
At present, disaster wireless emergency commading system in city mainly adopts technical solutions such as satellite transmits, CDMA, 340M microwave.Each is different for the structure of these four kinds of wireless networks and disaster accident image scene, voice, data information acquisition, transmission means and technical characterstic, briefly introduces each technology wireless transmission principles below, characteristics and parameter general introduction:
1, satellite transmits technology
With the satellite transmits technology is the communication technology that the wireless emergency commading system of the city disaster of fundamental construction adopts artificial satellite to carry out as relay station, and the domsat communication network generally adopts C-band (3700～4200Mhg) and Ku (11～14Mhg).The satellite transmits technology has long transmission distance, the characteristics of broad covered area, and employing satellite digital technology has significantly reduced the requirement to frequency spectrum resource, and satellite transmits is not subjected to the influence of ground disaster simultaneously, is subjected to such environmental effects little, thereby has guaranteed the reliability of signal.
This system of characteristics based on the satellite transmits technology can only adopt some broadcasting, multicast data transmission mode to multiple spot, can not truly realize disaster accident on-site wireless command system multi-angle, omnibearing front-end information acquisition function simultaneously.Satellite receiving terminal antenna transmission system volume is big, operation is complicated, and when system used, it is long that the terminal receiver is set up the communication channel time in satellite, is not suitable for the foundation of sudden disaster accident scene emergency commading system.Because limited this inherent shortcoming of the narrow message capacity that causes of bandwidth in the satellite communication frequency makes the big volume transport of the voice communication that accounts for maximum ratio in satellite communication be restricted.And do not have at underground complex environment under the situation of satellite-signal covering, this radio communication chain circuit can't be set up, and this system's operation cost is higher.Therefore, satellite communication technology can't realize the wireless communication command system for emergency rescue scene in the face of complex environment truly.
2, CDMA technology
The cdma wireless mobile video monitor system is based on the cdma network of UNICOM, takies its brand-new 800MHz working frequency range.Because the cdma network broad covered area utilizes the cdma network base station of UNICOM can realize remote, large-scale video monitoring of single channel video image information and mobile monitor, supports the transmission of remote strange land, its travelling performance is also more satisfactory.
Yet the total speed of the peak value of this system is 153.6kbit/s after tested, and the uploading rate under the CDMA perfect condition is about 80kbit/s.Cdma network adopts the voice-and-data shared channel, if number of network users or voice user's quantity are increased to a certain degree, will cause the wretched insufficiency of Internet resources.So, the operable bandwidth of each CDMA user will be advanced and can reduce further.Even in network signal and resource all under perfect condition, also can only transmit 8～10 frame/seconds of CIF vision signal, the video signal transmission poor continuity, time-delay is big, and effect is not ideal enough, and (it is 300kbit/s～2Mbit/s) that MPEG4/H.264 compress technique signal transmits required bandwidth.Simultaneously because cdma network is subjected to the influence of himself bandwidth, image that only can transmission of one line CDMA in same sector also just says that it can not constitute a multiway images wireless-transmission network at the scene.Because this system adopts the relay station of civilian fixation of C DMA base station as message transmission, the information security confidentiality is relatively poor.The distinct issues of this technology are, under the underground and complex environment situation that cdma base station can't cover, radio communication chain circuit just can't be set up, and the influence that cdma base station is subjected to the ground disaster is bigger, when in case the base station is subjected to that disaster is destroyed or electric power system goes wrong, the on-site wireless emergency commading system can't operate as normal, so CDMA technology can't realize the wireless communication command system for emergency rescue scene in the face of complex environment truly.
3,340M microwave technology
Traditional emergency system majority all adopts 340MHz microwave communication technology, and this frequency range microwave signal diffracting power is stronger, and communication distance is far away, and this sending and receiving devices can realize self-contained electric system, is not subjected to the influence of ground disaster, thereby has guaranteed the stability of signal.
Based on the characteristics of 340MHz microwave technology self, its network struction bandwidth is little, and this band bandwidth has only 1M usually, and along with transmitting range strengthens, bandwidth reduces significantly, so the images poor continuity, and it is bigger to delay time.This frequency range supports that mobile device quantity is few, and a frequency can only be supported a set of equipment basically, and the 340MHz microwave frequency band is maximum 5 frequencies in same overlay area, that is to say to support 5 cover mobile devices at most in the same area.And this 5 cover mobile device takies 5 different frequencies and independent fully respectively, can't form real network, can only lean on control centre,, be modeled to a virtual the integration environment by the external hardware device of periphery, system applies is poor, owing to be any notion, there is not the structure of network and system, the application extreme difference to a bit, can not networking, can't realize the mobile-relay station function, so the blind area is many, can't solves microwave and send blind zone problem.Because a mobile device just need be provided with a receiving equipment in control centre's correspondence; 5 mobile devices just need be provided with 5 receiving equipments in control centre, and then grow up to be a useful person by outer engagement, and 5 analog signals are synthesized at a picture.Must cause the whole purchase cost of virtual the integration environment to strengthen like this.And this technology can't be set up into a real cordless communication network because of being subjected to the restriction of frequency bandwidth at all.Because there is above-mentioned limitation in the 340MHz microwave technology, and application technology is backward relatively, therefore can't realize wireless communication command system for emergency rescue scene truly in the face of complex environment.
The utility model content
The utility model has overcome above-mentioned shortcoming, provide that a kind of antijamming capability is strong, long transmission distance, can be in the face of the wireless communication command system for emergency rescue scene of complex environment.
The technical scheme in the invention for solving the technical problem is: a kind of wireless communication command system for emergency rescue scene, the portable unit that comprises field data collection and wireless transmission, multifrequency point wireless access and dispensing device, radio receiver, the field data treatment facility, described radio receiver is connected with described field data treatment facility, and the signal that sends of the portable unit that directly receives described field data collection and wireless transmission, described multifrequency point wireless access is connected with described radio receiver with dispensing device, receive the signal that the portable unit of described field data collection and wireless transmission sends, and give described radio receiver the signal forwarding that receives.
The portable unit of described field data collection and wireless transmission comprises data acquisition module, analog-to-digital conversion module and the encoding compression module that connects in turn, also comprise a power devices system that links to each other with described data acquisition module, analog-to-digital conversion module and encoding compression module respectively, the output of described encoding compression module is connected with the wireless-modulated sending module, and described power devices system also links to each other with described wireless-modulated sending module.
Described data acquisition module also can be connected with data and gather external interface, and described wireless-modulated sending module also can be connected with an information communication interface; Described power devices system can be connected with a lithium battery power supply system by the power supply control interface, and described power devices system also is connected with a full duplex call system.
The portable unit of described field data collection and wireless transmission also can comprise a waterproof knapsack, and described data acquisition module, analog-to-digital conversion module, encoding compression module, wireless-modulated sending module and power devices system are installed in the described waterproof knapsack.
Described field data treatment facility adopts duplex computer system field data treatment facility, comprise two independently embedded computer systems, two display systems, a computerized equipment, electric power supply control system, computer power support system and monitor power supply system, described two independently embedded computer system be connected with described two display systems respectively, described computerized equipment is connected respectively to described two embedded hardware computer systems, described computer power support system connects described two embedded computer systems independently respectively, described monitor power supply system is connected respectively to described two display systems, and described electric power supply control system connects and controls described computer power support system and described monitor power supply system.
Described duplex computer system field data treatment facility also can comprise a wireless module, described wireless module with one of them independently embedded computer system link to each other, described wireless module also connects and is controlled by described electric power supply control system; Described duplex computer system field data treatment facility also can comprise the peripheral hardware input/output interface that links to each other with two described independently embedded computer systems respectively; Described two independently embedded computer system can interconnect by data wire; Described duplex computer system field data treatment facility also can comprise a waterproof cabinet, and described two independently embedded computer system, two display systems, computerized equipment, electric power supply control system, computer power support system and a monitor power supply system all are arranged on described waterproof cabinet inside.
Described multifrequency point wireless access and dispensing device, comprise the receiving terminal antenna transmission system, wireless receiving module, wireless frequency-variable module, wireless sending module and the transmitting terminal antenna transmission system that connect successively, also comprise power supply unit, described power supply unit connects respectively and powers and give described wireless receiving module, wireless frequency-variable module and wireless sending module.
Also can be connected with the signal shaping amplification module between described wireless signal receiver module and the wireless frequency-variable module, described power supply unit connects and described signal shaping amplification module is given in power supply; Described wireless receiving module, signal shaping amplification module, wireless frequency-variable module, wireless sending module and power supply unit can be installed in the all-metal seal box.
Described radio receiver, comprise the Anneta module, microwave radio connector and the wireless communication module that connect successively, the output of described wireless communication module is connected with the information communication interface, also comprises a power supply unit, and described power supply unit connects and described wireless communication module is given in power supply.
Described power supply unit can comprise successively lithium battery power supply system, power supply control interface and the power devices system that connects, and the output of described power devices system connects described wireless communication module.Described radio receiver also can comprise a base, and described microwave radio connector, wireless communication module and power supply unit are arranged in the described base, and the bottom of described base is provided with a sucker.
The utility model system can face complex environment, realize disaster on-site wireless sound, video directing, use international advanced wireless communication technique, sound, video and transfer of data are combined together, adopt advanced mobile relaying theory, can avoid the wireless difficult problem of blocking under the complex environment, prolong the information communication linkage length, strengthen wireless signal strength.In addition, utilize the application of frequency mixing technique in described multifrequency point wireless access and the dispensing device, the signal frequency that wireless receiving module is received is converted to the required signal frequency of wireless sending module, the feasible signal that receives and the signal of transmission can be operated in two different frequency ranges, remedy the deficiency of common wireless network repeater operation in single frequency band, thereby realize the information mutual communication of different frequency range signal, not only realized duplicating of signal between two network nodes, also prolong the length of network with this, and network connectivity problems in two different frequency scopes have been realized, thoroughly solve the interference problem of wireless signal, and guaranteed the Information Security of packet in the interim wireless network transmissions of setting up.
Description of drawings
Fig. 1 is the schematic diagram of the utility model system;
Fig. 2 is the theory diagram of the portable unit of field data collection and wireless transmission in the utility model;
Fig. 3 is the theory diagram of duplex computer system field data treatment facility in the utility model;
Fig. 4 is the theory diagram of multifrequency point wireless access and dispensing device in the utility model;
Fig. 5 is the theory diagram of radio receiver in the utility model;
Fig. 6 is the structural representation of radio receiver in the utility model.
Embodiment
As shown in fig. 1, the utility model system comprises that the portable unit of field data collection and wireless transmission is (because this device is normally carried by single rescue personnel, also be called for short individual soldier's device), multifrequency point wireless access and dispensing device, radio receiver, duplex computer system field data treatment facility, described radio receiver is connected with described duplex computer system field data treatment facility, and the signal that sends of the portable unit that directly receives described field data collection and wireless transmission, described multifrequency point wireless access is connected with described radio receiver with dispensing device, receive the signal that the portable unit of described field data collection and wireless transmission sends, and give described radio receiver the signal forwarding that receives.
The portable unit of described field data collection and wireless transmission as shown in Figure 2, comprise the data acquisition module, analog-to-digital conversion module, encoding compression module and the wireless-modulated sending module that connect in turn, also comprise a power devices system that links to each other with described data acquisition module, analog-to-digital conversion module, encoding compression module and wireless-modulated sending module respectively.The portable unit of described field data collection and wireless transmission is gathered on-the-spot sound, video and Various types of data by data acquisition module, wireless transmission is gone out after compression, coding and the modulation of analog-to-digital conversion, information packet, thereby finish the information gathering of on-the-spot Various types of data (video, audio frequency, data), and the Various types of data bag is sent to the rear end radio receiver by wireless mode.The signal frequency that the portable unit of described field data collection and wireless transmission receives wireless receiving module is converted to the required signal frequency of wireless sending module, the feasible signal that receives and the signal of transmission can be operated in two different frequency ranges, remedy the deficiency of common wireless network repeater operation in single frequency band, thereby realize the information mutual communication of different frequency range signal, not only realized duplicating of signal between two network nodes, also prolong the length of network, and realized two network connectivity problems that the different frequency scope is interior with this.
Because when having the data acquisition module that on-the-spot various types of signal is realized gathering, also has the wireless-modulated sending module, and described wireless-modulated sending module can be operated in higher frequency band, transmission bandwidth can reach 54M, image transmission frame number 〉=15 frames, picture format reaches the D1 form, the image definition height, and picture quality is good.When data transmitted, transmitted power was less than 200 milliwatts, to the radiationless harm of human body.And described wireless-modulated sending module has certain diffracting power, can on-the-spotly set up wireless communication networks, realizes the collection wireless transmission function of image, voice, data, thereby finishes the construction of disaster on-site wireless traffic guidance system.
Described wireless-modulated sending module adopts has OFDM-BPSK (OFDM:OrthogonalfrequencyDivisionMultiplexing OFDM; BPSK:BinaryPhaseShiftKeying, biphase phase shift keying; OFDM-BPSK:OFDM channel BPSK modulation), QPSK (QuadraturePhaseShiftKeying, Quadrature Phase Shift Keying), 16QAM (QuadratureAmplitudeModulation, quadrature amplitude modulation; 16QAM is meant the qam mode that comprises 16 kinds of symbols), the wireless sending module of 64QAM (qam mode that comprises 64 kinds of symbols) modulating mode, support multicast communication, the portable unit that can realize the field data collection of a plurality of described support several data and wireless transmission transmits towards the information of a radio receiver.
In addition, the portable unit of described field data collection and wireless transmission also comprises an embedded full duplex call system that is connected with described power devices system.Adopt dual-mode to realize speech communication, and use MP3 compressed format, the conversation continuity is good, and speech quality is clear, receives commander's scheduling and arrangement to guarantee the carrier.Described data acquisition module also is connected with data and gathers external interface, can adopt standard interface, according to field condition, connects equipment such as video camera, life-detection instrument, thermal infrared imager, detection equipment.Described wireless-modulated sending module also is connected with an information communication interface by information channel, has automatic identification networking function, backstage control technology, need not can realize the expansion of communication modes and interface to the setting of equipment secondary.Described power devices system is connected with a lithium battery power supply system by the power supply control interface, by the high-performance lithium battery that is equipped with, can continuous operation more than 5 hours, and transmitting power is less than 200 milliwatts, to the radiationless harm of human body.
The portable unit of described field data collection and wireless transmission adopts the backpack design concept, each assembly of elements such as described data acquisition module, analog-to-digital conversion module, encoding compression module, wireless-modulated sending module and power devices system is positioned in the described waterproof knapsack, volume is small and exquisite, be convenient for carrying, easy to operate.
As shown in Figure 3 described, described duplex computer system field data treatment facility comprises two independently embedded computer systems, two display systems, a computerized equipment, electric power supply control system, computer power support system and monitor power supply system, described two independently embedded computer system be connected with described two display systems respectively, described computerized equipment is connected respectively to described two embedded hardware computer systems, described computer power support system connects described two embedded computer systems independently respectively, described monitor power supply system is connected respectively to described two display systems, and described electric power supply control system connects and controls described computer power support system and described monitor power supply system.Connect and described electric power supply control system power supply is given in power supply by external power supply adapter or battery.Described computerized equipment comprises keyboard and mouse, is used to import instructions.
And described duplex computer system field data treatment facility inside comprises two independently embedded computer systems, and described two independently embedded computer system interconnect by data wire.In a bare machine system, generate in the database file, adopt the method for archivelogmode (archive mode) mode Backup Data, by the network interconnection between two bare machine internal system, in another bare machine system, back up out this database file, thereby realize the duplex computer warm standby function.Further, two independently embedded computer system realize information mutual communication fully, can realize the resource-sharing of two systems easily, simplified staff's operating process greatly, improved operating efficiency, reduced or remitted the operate miss rate.And the information that collects of the described duplex computer system field data treatment facility portable unit that can receive, write down automatically field data collection and wireless transmission in real time, both can command and dispatched according to field condition and front-end person who, also can form wireless network, reach on-the-spot fire fighting and rescue information sharing with mobile command center and commander.Unique double screen display design can be so that the commander when watching the disaster image scene in real time, carries out the playing function of data record and all kinds of fire extinguishing prediction schemes.
Described display system is that brightness is higher than 320cd/m
2(cd/m
2Being brill, is may moral to draw every square meter or claim nits) LCD.Because display brightness is crossed when low, out of doors or daylight when using down, its displaying information on screen dimness can't be seen its displaying contents clearly, and for the industry that needs outwork, common display system can not satisfy its work requirements.According to concrete application need, described two display systems all can adopt technical grade high brightness liquid crystal display systems, and display brightness is 1000cd/m
2, make the commanding clearly see image information shown on the screen in the intense light irradiation environment out of doors, can satisfy the requirement of the outdoor use of special industry fully.
Wireless module with one of them independently embedded computer system link to each other, described wireless module also connects and is controlled by described electric power supply control system.Described wireless module can adopt civilian level 2.4G wireless network module, can be connected in the wireless network in the public network coverage, also can adopt independently army grade high-performance wireless module, can make things convenient for the wireless device identical to form stable MANET road with its performance, can be connected with other dedicated networks and special MANET road, be particularly useful for the disaster accident on-site wireless command system of fire protection sector.Described wireless module adopts international advanced wireless technology, and follow national defence electronic component standard, can be in-20 ℃～+ 70 ℃ temperature ranges operate as normal, transmitting power≤200mW, meet Chinese Wireless Management Committee regulation, human body is not had any radiation injury, and this module communication bandwidth can reach 54Mbps, can satisfy the Various types of data wireless transmission.
In addition, described duplex computer system field data treatment facility also comprises the peripheral hardware input/output interface that links to each other with two described independently embedded computer systems respectively.That is, by reserving all kinds of standard peripherals interfaces, can external projecting apparatus, external equipment such as video wall.Described duplex computer system field data treatment facility can also be used all aluminium alloy waterproof cabinet, each device rationally is placed in the described waterproof cabinet, and the internal structure modularization for example adopts integral keyboard mouse, takes into full account requirements such as waterproof, antidetonation, heat radiation.
Described multifrequency point wireless access and dispensing device are as shown in Figure 4, comprise the receiving terminal antenna transmission system that connects successively, wireless receiving module, the signal shaping amplification module, wireless frequency-variable module, wireless sending module and transmitting terminal antenna transmission system, also comprise power supply unit, described power supply unit comprises the charging-discharging controller that connects successively, lithium battery pack module and electric power supply control system, described electric power supply control system connects described wireless receiving module via the wireless receiving module electric power system, described electric power supply control system connects described wireless sending module via the wireless sending module electric power system, and described electric power supply control system directly connects described wireless frequency-variable module and signal shaping amplification module respectively.
The signal frequency that wireless receiving module is received by described wireless frequency-variable module is converted to the required signal frequency of wireless sending module, its signal receives and the signal transmission is operated in two obstructed frequency ranges, remedy the deficiency of common wireless network repeater operation, thereby realize the information mutual communication of different frequency range signal in single frequency band.Described signal shaping amplification module amplifies the signal of decay, avoids the distortion phenomenon that causes because of decay in the signal transmission.Therefore, not only realized the duplicating of signal between two network nodes, adjustment and enlarging function, prolonged the length of network, and realized the network connectivity problems in two obstructed frequency ranges with this.In actual use, when wireless signal transmitting terminal and the use of terminal receiving terminal is not same communication frequency, utilize described multifrequency point wireless access and dispensing device, the carrier signal of the information that the wireless signal transmitting terminal that receives is sent changes by the frequency converter occurrence frequency, become with the terminal receiving terminal and be in the same frequency range, thereby realize the two-way communication of wireless signal between the obstructed frequency.
Utilizing described multifrequency point wireless access and dispensing device is the equipment of Data Receiving and forwarding as relaying, Radio Link is built into uses the multiband information transfer channel, just can avoid the space internal information to propagate the problem that single frequency band is disturbed.Aspect the wireless signal processing, adopt two kinds of different modulation and demodulation technology of direct sequence spread spectrum and frequency hopping, promptly guaranteed the stability of signal, strengthened the anti-strong frequency of deciding and disturbed and anti-multiple access interference performance, also strengthened the fail safe of information.
Owing to adopt the lithium battery pack module as working power, stable performance, continuous working period is long, not only volume is small and exquisite to make whole device, mobility is strong, and the Wi-Fi signaling distance is far away, and, each parts except that antenna can be installed in the all-metal seal box, have the characteristics such as antirust, waterproof and dustproof, antiultraviolet irradiation of outdoor type equipment.Operating personnel can at the bottom of device mounting bracket, carry out corresponding highly adjusting, convenient moving and installation according to concrete environment for use.Only need connect high-gain aerial during use, need not to dispose with debug can finish signal be connected transmission work.Block at building, under the various non line of sight situations such as upstairs house lower leaf, underground works, can increase this multifrequency point wireless access and dispensing device, can carry out frequency conversion, the forwarding capability of signal by mending at correct position.And can realize that received signal is changed to another frequency range from a frequency range and carries out the signal sending function, thus improved the anti-interference of signal greatly, guaranteed the fail safe of data information transfer.Thereby solved because of building to radio signal block, the unimpeded bottleneck problem of puzzlement such as underground signal shielding communication.
Described radio receiver as shown in Figure 5, comprise Anneta module, wireless communication module and power supply unit, comprise the Anneta module, microwave radio connector and the wireless communication module that connect successively, the output of described wireless communication module is connected with the information communication interface, also comprise a power supply unit, described power supply unit comprises successively lithium battery power supply system, power supply control interface and the power devices system that connects, and the output of described power devices system connects described wireless communication module.
Described radio receiver is directly transferred to described wireless communication module with the wireless signal that Anneta module receives by described microwave radio connector, the conversion of realization from the analog signal to the digital signal, wireless signal is converted into the network digital signal, make described radio receiver both can carry out information communication with wireless device, also can carry out information communication with the equipment of other network enabled agreements, at the microwave wireless environment than complicated situation, and block under the more serious geographical environment, utilize this equipment wireless signal to be converted into the characteristics of network packet, connect by the netting twine cable, the packet of required communication can be sent in the next stage communication apparatus, avoid the interference of wireless signal in the space, and solved the communication blind spot problem that the base station covers.Described radio receiver need not feeder line and connects wireless communication module, thoroughly avoided the influence of the signal attenuation that feeder line brings, guarantee high-quality transfer of data, also avoided simultaneously connecting the many restrictions that cause with feeder line, on each node that radio communication chain circuit is set up, can realize more rational layout.
As shown in Figure 6, described microwave radio connector, wireless communication module and power supply unit are arranged in the base 1, and Anneta module 3 is arranged on the base 1, and the bottom of described base 1 is provided with a sucker 2.Described information communication interface 4 is arranged on the side surface of described base.Said structure makes described radio receiver simple in structure, compact, and possesses stronger adsorption capacity.When setting up wireless communication networks out of doors temporarily, need not fixed installation, this equipment directly can be adsorbed on smooth body surface, or vehicle-mounted top gets final product, absorption firmly, it is convenient to load and unload, during the opinion vehicle ', or wind and rain weather, antenna is connected firmly, frangibility not, the information communication interface 4 by default utilizes netting twine to be transferred to the equipment of other network enabled agreements.In the described power subsystem, by the lithium battery power supply system as energy source, out of doors in the particular surroundings, when the externally fed system can not be provided, by the lithium battery power supply system, provide and stablize permanent electric power, be a kind of data equipment that external resource is supported that need not.
In the middle of the application of reality, system can be by the portable unit (individual soldier's device) of one to multiple field data collection and wireless transmission, one to multiple multifrequency point wireless access and dispensing device, a radio receiver and a duplex computer system field data treatment facility are formed.Using the portable unit (individual soldier's device) of collection of multichannel field data and wireless transmission to enter the disaster accident scene according to actual needs takes on the spot.This moment, the portable unit (individual soldier's device) of field data collection and wireless transmission passed to duplex computer system field data treatment facility by multifrequency point wireless access and dispensing device and radio receiver with video data; Perhaps directly video data is passed to duplex computer system field data treatment facility by radio receiver.Wherein said multifrequency point wireless access and dispensing device are as receiving relaying, the signal that the responsible portable unit (individual soldier's device) that receives field data collection and wireless transmission sends, and the signal that is converted into other frequencies is sent to radio receiver, to strengthen data bandwidth and to improve transmission rate.
Every multifrequency point wireless access and dispensing device can receive the portable unit (individual soldier's device) of many field data collections and wireless transmission simultaneously, and every multifrequency point wireless access and dispensing device can carry out information mutual communication, but described radio receiver automatic reception terminal moves the data of relaying, and send it on the duplex computer system field data treatment facility by netting twine or wireless mode, carry out picture browsing, functions such as speech communication and data processing.When the problem that runs into unlimited signal attenuation or shielding when this system occurs, and can in position lay multifrequency point wireless access and dispensing device, finish the relay function of unlimited signal link as mobile relaying.The ordinary PC that duplex computer system field data treatment facility also can adopt single-computer system field data treatment facility or function software has been installed substitutes.
The utility model system is the wireless ad hoc network pattern in the face of the wireless communication command system for emergency rescue scene of complex environment is exactly to adopt advanced mixing microwave technology, is core with the 4G technology, employing be to exempt from licensed band.Its main feature has:
1) communication distance is far away, can reach 20 kilometers under the non-situation of seriously blocking, and utilizes multifrequency point wireless access and dispensing device sight line relaying can realize that more distant signal covers;
2) automatic route, MANET, link is reliable and stable;
3) power output little (200mW) does not have injury to human body;
4) technical grade design can work in (40 ℃～+ 65 ℃ wide temperature environment) under the multiple environment;
5) receiver sensitivity height reaches-94dBm, and its performance index reach advanced level in the world;
6) transmission rate height, bandwidth reach as high as 22Mbps (54Mbps is optional), and upstream bandwidth is 11Mbps, images clear and smooth, DVD image quality;
7) antijamming capability is strong, and the design of mixing microwave technology can not be subjected to the influence of other communication equipments.Simultaneously, system can not disturb other equipment operate as normal yet;
8) privacy degrees height adopts ESSID authentication mechanism, mac address filter function, WEP+ superencipherment algorithm for encryption;
9) automatic addressing in the net during place website fault, can change data link system in automatically, and employing high-grade intelligent radio identification technology is sought nearest website and in time set up and recovered radio link, does not influence entire system stability;
10) multi-hop design: suitable large tracts of land is disposed outside the venue, and the non-blind area characteristics can cover the large tracts of land open area;
11) hoc network: free networking, structure is flexible, disposes fast, and switch speed is fast between the node, is fit to the transmission of audio frequency, video and Various types of data;
12) mesh network: do not rely on any one node, have bigger redundancy scheme and traffic load equilibrium function;
13) blind spot is little: this system adopts mobile-relay station design concept, gathers front end and forward the data to rear end reception place by mobile-relay station, and the user can lay mobile-relay station according to the complex situations of environment, and less greatly wireless network covers blind spot;
13) self-contained electric system: any equipment of setting up this system all has lithium battery (or Ni-MH battery) self-contained electric system, is not subjected to the influence of ground disaster, is subjected to such environmental effects little, thereby has guaranteed the reliability of signal.
14) acceptance point receives multiline message and gathers front end: because that the employing of described frequency mixing technique is international advanced OFDMw/BPSK, QPSK, 16QAM, the 64QAM modulating mode, support multicast communication, can realize that an information wireless receiving system receives many these portable units, thereby realize comprehensive, the field data collection of institute's angle, and input cost is lower.
The utility model system uses international advanced wireless communication technique in the face of the wireless communication command system for emergency rescue scene of complex environment, sound, video and transfer of data are combined together, adopt advanced mobile relaying theory, can avoid the wireless difficult problem of blocking under the complex environment, prolong the information communication linkage length, strengthen wireless signal strength.The application of frequency mixing technique has thoroughly solved the interference problem of wireless signal, and has guaranteed the Information Security of packet in the interim wireless network transmissions of setting up.Disaster accident scene in burst, build wireless emergency command communication network apace temporarily, to be placed in duplex computer system field data treatment facility in the command car as operation center, utilize the portable unit (being individual soldier's device) of field data collection and wireless transmission, multi-angle, in all directions with the sound at disaster accident scene, information such as video and all kinds of field datas is sent to operation center in real time by mobile relaying, the operation center staff can be according to multichannel disaster accident field condition, make " fast reaction " and assign " correct decisions ", satisfactorily finish the disaster relief and rescue task.The utility model system also can utilize city wireless coverage network and the satellite communication system that has built, the on-the-spot sound that will collect by multifrequency point wireless access and dispensing device, video image and data information by the floor manager car be forwarded to urban fire control command centre or each minute command centre place, also can be the 350MHz that public security fire-fighting army uses, the wireless communication system of frequency ranges such as 800MHz provides tandem switching, drop into little, effective, fundamentally solved the radio communication difficult problem of all shielding spaces such as underground works, for commanders at different levels provide directly perceived, full and accurate in-situ data, come to the scene of the accident personally as leaders at different levels, in real time, recognize the situation at disaster accident scene all sidedly.
In sum, the utility model has merged satellite communication technology, the cdma wireless technology, the advantage of 340M microwave transmission technology, and overcome the deficiency of three kinds of technology, become current the most advanced wireless communication technology, can be built into complete wireless communication command system for emergency rescue scene in the face of complex environment, base oneself upon the on-the-spot rear, the place ahead that forms of disaster accident, the above and below ground, internal-external can both be observed on-the-spot circumstance at any time, thoroughly solve disaster accident scene for many years, especially subway, subterranean tunnel and other complex environments inner with the ground audio frequency and video can't real-time Transmission technical barrier.
More than wireless communication command system for emergency rescue scene provided by the utility model is described in detail, used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (10)
1. wireless communication command system for emergency rescue scene, it is characterized in that: the portable unit that comprises field data collection and wireless transmission, multifrequency point wireless access and dispensing device, radio receiver, the field data treatment facility, described radio receiver is connected with described field data treatment facility, and the signal that sends of the portable unit that directly receives described field data collection and wireless transmission, described multifrequency point wireless access is connected with described radio receiver with dispensing device, receive the signal that the portable unit of described field data collection and wireless transmission sends, and give described radio receiver the signal forwarding that receives.
2. wireless communication command system for emergency rescue scene according to claim 1, it is characterized in that: the portable unit of described field data collection and wireless transmission comprises data acquisition module, analog-to-digital conversion module and the encoding compression module that connects in turn, also comprise a power devices system that links to each other with described data acquisition module, analog-to-digital conversion module and encoding compression module respectively, the output of described encoding compression module is connected with the wireless-modulated sending module, and described power devices system also links to each other with described wireless-modulated sending module.
3. wireless communication command system for emergency rescue scene according to claim 2 is characterized in that: described data acquisition module also is connected with data and gathers external interface, and described wireless-modulated sending module also is connected with an information communication interface; Described power devices system is connected with a lithium battery power supply system by the power supply control interface, and described power devices system also is connected with a full duplex call system.
4. wireless communication command system for emergency rescue scene according to claim 2, it is characterized in that: the portable unit of described field data collection and wireless transmission also comprises a waterproof knapsack, and described data acquisition module, analog-to-digital conversion module, encoding compression module, wireless-modulated sending module and power devices system are installed in the described waterproof knapsack.
5. wireless communication command system for emergency rescue scene according to claim 1, it is characterized in that: described field data treatment facility adopts duplex computer system field data treatment facility, comprise two independently embedded computer systems, two display systems, a computerized equipment, electric power supply control system, computer power support system and monitor power supply system, described two independently embedded computer system be connected with described two display systems respectively, described computerized equipment is connected respectively to described two embedded hardware computer systems, described computer power support system connects described two embedded computer systems independently respectively, described monitor power supply system is connected respectively to described two display systems, and described electric power supply control system connects and controls described computer power support system and described monitor power supply system.
6. wireless communication command system for emergency rescue scene according to claim 5, it is characterized in that: described duplex computer system field data treatment facility also comprises a wireless module, described wireless module with one of them independently embedded computer system link to each other, described wireless module also connects and is controlled by described electric power supply control system; Described duplex computer system field data treatment facility also comprises the peripheral hardware input/output interface that links to each other with two described independently embedded computer systems respectively; Described two independently embedded computer system interconnect by data wire; Described duplex computer system field data treatment facility also comprises a waterproof cabinet, and described two independently embedded computer system, two display systems, computerized equipment, electric power supply control system, computer power support system and a monitor power supply system all are arranged on described waterproof cabinet inside.
7. wireless communication command system for emergency rescue scene according to claim 1, it is characterized in that: described multifrequency point wireless access and dispensing device, comprise the receiving terminal antenna transmission system, wireless receiving module, wireless frequency-variable module, wireless sending module and the transmitting terminal antenna transmission system that connect successively, also comprise power supply unit, described power supply unit connects respectively and powers and give described wireless receiving module, wireless frequency-variable module and wireless sending module.
8. wireless communication command system for emergency rescue scene according to claim 7, it is characterized in that: also be connected with the signal shaping amplification module between described wireless signal receiver module and the wireless frequency-variable module, described power supply unit connects and described signal shaping amplification module is given in power supply; Described wireless receiving module, signal shaping amplification module, wireless frequency-variable module, wireless sending module and power supply unit are installed in the all-metal seal box.
9. wireless communication command system for emergency rescue scene according to claim 1, it is characterized in that: described radio receiver, comprise the Anneta module, microwave radio connector and the wireless communication module that connect successively, the output of described wireless communication module is connected with the information communication interface, also comprise a power supply unit, described power supply unit connects and described wireless communication module is given in power supply.
10. wireless communication command system for emergency rescue scene according to claim 9, it is characterized in that: described power supply unit comprises lithium battery power supply system, power supply control interface and the power devices system that connects successively, the output of described power devices system connects described wireless communication module, described radio receiver also comprises a base, described microwave radio connector, wireless communication module and power supply unit are arranged in the described base, and the bottom of described base is provided with a sucker.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020298733 CN201813555U (en) | 2010-08-20 | 2010-08-20 | On-scene wireless communication command system in emergency rescue |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201020298733 CN201813555U (en) | 2010-08-20 | 2010-08-20 | On-scene wireless communication command system in emergency rescue |
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| CN201813555U true CN201813555U (en) | 2011-04-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185714A (en) * | 2011-05-04 | 2011-09-14 | 公安部沈阳消防研究所 | Intelligent networking management platform for fire emergency communication |
| CN102437862A (en) * | 2011-12-31 | 2012-05-02 | 北京国电通网络技术有限公司技术服务中心 | Portable device of emergency communication system |
| CN102866411A (en) * | 2012-09-13 | 2013-01-09 | 成都理工大学 | Geological survey safety system |
-
2010
- 2010-08-20 CN CN 201020298733 patent/CN201813555U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185714A (en) * | 2011-05-04 | 2011-09-14 | 公安部沈阳消防研究所 | Intelligent networking management platform for fire emergency communication |
| CN102185714B (en) * | 2011-05-04 | 2013-05-29 | 公安部沈阳消防研究所 | Intelligent networking management platform for fire emergency communication |
| CN102437862A (en) * | 2011-12-31 | 2012-05-02 | 北京国电通网络技术有限公司技术服务中心 | Portable device of emergency communication system |
| CN102866411A (en) * | 2012-09-13 | 2013-01-09 | 成都理工大学 | Geological survey safety system |
| CN102866411B (en) * | 2012-09-13 | 2014-05-14 | 成都理工大学 | Geological survey safety system |
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