CN201872653U - System operation training manual (SOTM) comprehensive emergency communication safeguard vehicle - Google Patents
System operation training manual (SOTM) comprehensive emergency communication safeguard vehicle Download PDFInfo
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Abstract
The utility model discloses a system operation training manual (SOTM) comprehensive emergency communication safeguard vehicle which is characterized by comprising a sports utility vehicle (SUV) and an SOTM comprehensive emergency communication safeguard system. The SOTM comprehensive emergency communication safeguard system comprises a satellite communication system, a comprehensive mobile communication system, a short-wave communication system, a multi-media command and control center (12), a vehicle-mounted video frequency/audio frequency system, a GPS (global position system)/ big dipper double module positioning system and a voice gateway (16). The SOTM comprehensive emergency communication safeguard vehicle realizes the signaling/media streaming format conversion among different systems such as the honeycomb mobile communication, the digital cluster communication, the short-wave communication and the like, and can support the access of a multimode user terminal to realize the interconnection and the intercommunication between the existing network and the transmission modes such as the satellite, the short wave, the E1, the IP (internet protocol) and the like and realize the networks spanning communication. The requirements of the communication and the command can be met in the emergency rescue and disaster relief filed such as the instantaneity and the effectiveness, the requirements for the command center to realize the remote command control and the communication can be met; and the timely and exact information can be flexibly offered.
Description
Technical field
The utility model relates to emergency communication safeguards technique field, is specifically related to a kind of being applicable to the comprehensive emergency communication service truck of communication in moving that integrated communication ensures is carried out in emergency disaster relief.
Background technology
Be applicable to that at present the Emergency communication vehicle that emergency disaster relief is communicated guarantee comprises following three kinds:
First kind is the Emergency communication vehicle that mobile operator uses at present, mainly solve professional emergent, satellite communication system wherein inserts ground existing communication network as relay method, by the mobile base station on the car, WLAN devices and landline telephone access device insert local MSC (Mobile Switching Center, mobile switching centre) thereby or other equipment realize and the interconnecting of existing core network.And in case local MSC or link are impaired, this communication truck just can not satisfy the emergency communication demand.
Second kind is mitigation or the public security organization command dispatch communication car of use at present of meeting an urgent need, mainly solves the scheduling of speedily carrying out rescue work and meet an urgent need.Based on existing trunked communication system, connect by private network, the cluster interphone carries out command scheduling, interconnects but can not public network such as move with existing honeycomb, and only link sends graphicinformation to command centre via satellite.
The third is a satellite communications vehicle, mainly solves remote districts or land mobile communication or fixed telephone network and covers relatively poor regional user's communications demand.Satellite antenna, satellite modulating equipment, ICBM SHF satellite terminal and graphic transmission equipment etc. are housed in the car.Satellite communications vehicle is mainly based on satellite communication, can not satisfy under the emergency condition demand to mobile communication and command scheduling equally.
This shows, in emergency communication at present, use above-mentioned various Emergency communication vehicles separately and be faced with mutual contention frequency resource, in case of emergency can't carry out the problem of the unified command scheduling of across a network, can not satisfy various emergency communication demand simultaneously.
The utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model is: how to provide a kind of communication in moving comprehensive emergency communication service truck, make the unified command that in case of emergency can carry out across a network dispatch, and can satisfy various emergency communication demand simultaneously.
(2) technical scheme
For achieving the above object, the utility model adopts following technical scheme:
The comprehensive emergency communication service truck of a kind of communication in moving, the comprehensive emergency communication service truck of described communication in moving comprises: the comprehensive emergency communication support system of cross-country car and communication in moving; The comprehensive emergency communication support system of described communication in moving comprises: satellite communication system, comprehensive mobile communication system, Shortwave Communication System, multimedia command and control center 12, vehicle-mounted audio system, GPS/ Big Dipper bimodulus position fixing system and the voice gateways 16 of looking; Wherein,
Described satellite communication system communicates with satellite communication network by the communication in moving Car antnna 1 that is installed on the cross-country car;
Described comprehensive mobile communication system comprises honeycomb portable antenna, honeycomb mobile radio equipment 6, Digital Clustering radio-frequency apparatus 7, multimode mobile switch 8, media business management server 9, wireless information device 10 and the multi-module mobile terminal 11 that is installed on the cross-country car; Described honeycomb mobile radio equipment 6 is connected with multimode mobile switch 8 by the IP link respectively with Digital Clustering radio-frequency apparatus 7, described multimode mobile switch links to each other with described satellite communication system by the IP link respectively with media business management server 9, described wireless information device 10 and multimode mobile subscriber terminal 11 insert described comprehensive mobile communication system by air interface respectively, realize multimode speech, note, data, image and video transmission;
Described Shortwave Communication System comprises the short-wave radio set antenna that is installed on the cross-country car car, interconnected vehicle-mounted short-wave radio set 14 and wire and wireless interconnecting device 15, and portable short-wave radio set is called out satellite phone or common exchanging telephone network PSTN phone by vehicle-mounted short-wave radio set 14; Vehicle-mounted short-wave radio set 14 inserts multimedia command and control center 12 by wire and wireless interconnecting device 15, by manual answering's switching, finishes the transfering the letter function between short-wave radio set and cable network;
Described multimedia command and control center 12 links to each other with wire and wireless interconnecting device 15 with described satellite communication system by the IP link respectively, to described comprehensive mobile communication system, vehicle-mountedly look audio system and GPS/ Big Dipper bimodulus position fixing system is carried out unified command scheduling;
The described vehicle-mounted audio system of looking is connected with described satellite communication system by the IP link, be connected with described multimedia command and control center 12 by the VGA cable, to video/audio gather, encoding and decoding are handled and show;
Described GPS/ Big Dipper bimodulus position fixing system provides time service accurately and positioning function for the comprehensive emergency communication service truck of described communication in moving;
Described voice gateways 16 are connected with described satellite communication system by the IP link, voice signal is carried out carry out channel encoding again after the processing such as analogue to digital conversion, compressed encoding, sampling, IP encapsulation, modulation treatment, send into satellite channel and pass the satellite central sation back, insert terrestrial network, realize the intercommunication of in-car phoning and terrestrial network phone.
Preferably, the comprehensive emergency communication service truck of described communication in moving also comprises electric power system;
Described electric power system adopts one or more power supply modes in civil power, mobile generator, power taking electrical generator and the storage battery.
Preferably, described satellite communication system comprises by the interconnected communication in moving Car antnna 1 of IP link, broadband modem 2, IP accelerator 3, Ethernet switch 4 and router five.
Preferably, described multimode mobile switch 8 is used for realizing the function of moving exchanging center MSC, attaching position register/VLR Visitor Location Register HLR/VLR, the SMSC of short message service center, packet data serving node PDSN and the AUC of AUC and a plurality of access network base stations controller BSC and a plurality of radio network controller (RNC)s of legacy cellular GSM.
Preferably, described media business management server 9 is used to realize the support of mobile communication business gateway, mobile communication expansion service and integrated service management.
Preferably, described multimedia command and control center 12 also be used for realizing multicast, logically broadcast, one or more scheduling and the controllable function of dynamically reorganization, conference cal, forced interposing and forced releasing, ambience listening, point-to-multipoint short message, call monitoring, status poll.
Preferably, the described vehicle-mounted audio system of looking comprises and looks audio frequency switching matrix 20, and looks in headrest monitoring device 17 that audio frequency switching matrix 20 is connected, on-board screen 18, vehicle audio 19, image codec 21, the car pick up camera 23 behind pick up camera 22, the car and be installed in monopod video camera 24 on the cross-country car car with described by the VGA cable; Described image codec 21 is connected with Ethernet switch 4 by the IP link; Described monopod video camera 24 is used to gather the comprehensive emergency communication service truck of described communication in moving image on the way, pick up camera 23 is used to gather emergent on-the-spot image behind interior pick up camera 22 of described car and the car, and the image of being gathered shows by headrest monitoring device 17 or on-board screen 18, or behind image codec 21 compressed encodings, transfer out through satellite link; Perhaps, image codec 21 will decompress by the picture signal that described satellite communication system receives, and recovers analog video signal, sends into and looks audio frequency switching matrix 20, is presented on the headrest monitoring device 17.
Preferably, described GPS/ Big Dipper bimodulus position fixing system comprises antenna and the GPS/ Big Dipper bimodulus location receiver 13 that is installed on the cross-country car car;
Described GPS/ Big Dipper bimodulus location receiver 13 is used to provide latitude and longitude information, selects for use GPS or Big Dipper position fixing system to position.
(3) beneficial effect
The utility model provides a kind of communication in moving comprehensive emergency communication service truck, its actv. optimizes and combines existing three kinds of communication trucks, use the signaling/media stream formats conversion between different systems such as multimode mobile switch realization cellular mobile communication, digital cluster communication, short wave communication, can support multimode user terminal to insert, that realizes type of transmission such as satellite, shortwave, E1, IP and existing network by the multi-standard Tandem Gateway interconnects the realization outgoing telecommunication.Realize the multiple-link satellite voice communication simultaneously.Use cellular mobile communication and digital cluster communication radio-frequency apparatus to build mobile communications network; the realization signal covers; coverage is approximately the 3-25 kilometer; and finish the multimode speech; note; data service; realize control; exchange; decision-making; multi-functional command schedulings such as inquiry; satisfy rescue and relief work on-scene communication commander's real-time; the validity requirement; satisfy the requirement that command centre realizes remote command control and communication; can be motor-driven; information promptly and accurately is provided flexibly; be convenient to the command scheduling and the decision-making of command centre, and provide the mobile communication guarantee for local user.
Description of drawings
Fig. 1 is the constructional drawing according to the comprehensive emergency communication support system of communication in moving of the comprehensive emergency communication service truck of communication in moving described in the utility model.
Wherein, 1: the communication in moving Car antnna; 2: broadband modem; The 3:IP accelerator; 4: Ethernet switch; 5: router; 6: honeycomb mobile radio equipment; 7: the Digital Clustering radio-frequency apparatus; 8: the multimode mobile switch; 9: the media business management server; 10: wireless information device; 11: multi-module mobile terminal; 12: the multimedia command and control center; 13:GPS/ Big Dipper bimodulus location receiver; 14: vehicle-mounted short-wave radio set; 15: the wire and wireless interconnecting device; 16: voice gateways; 17: the headrest monitoring device; 18: on-board screen; 19: vehicle audio; 20: look the audio frequency switching matrix; 21: image codec; 22: pick up camera in the car; 23: pick up camera behind the car; 24: monopod video camera; 25: signal wall box.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
The comprehensive emergency communication service truck of communication in moving described in the utility model comprises: the comprehensive emergency communication support system of cross-country car and communication in moving; As shown in Figure 1, the comprehensive emergency communication support system of described communication in moving comprises: satellite communication system, comprehensive mobile communication system, Shortwave Communication System, multimedia command and control center 12, vehicle-mounted audio system, GPS/ Big Dipper bimodulus position fixing system and the voice gateways 16 of looking.
Described satellite communication system comprises that by the interconnected communication in moving Car antnna 1 of IP link, broadband modem 2, IP accelerator 3, Ethernet switch 4 and router five it communicates with satellite communication network by the communication in moving Car antnna 1 that is installed on the cross-country car;
The working process of concrete up-link is, Ethernet switch 4 carries out all the IP data packets (comprising speech, image) that insert alternately, give router five and carry out Route Selection, select the back to quicken processing giving IP accelerator 3 through route, give after acceleration is finished that modem 2 is encoded, modulation, frequency conversion, give communication in moving Car antnna 1 at last and launch.The working process of concrete downlink is, giving modem 2 after the signal data frequency conversion that communication in moving antenna 1 receives carries out demodulation, decoding, gives IP accelerator 3 then and recover to handle, signal data after recovery is finished is given router five and is carried out Route Selection, gives Ethernet switch 4 signal data at last and the other-end business device carries out alternately.
Described comprehensive mobile communication system comprises honeycomb portable antenna, honeycomb mobile radio equipment 6, Digital Clustering radio-frequency apparatus 7, multimode mobile switch 8, media business management server 9, wireless information device 10 and the multi-module mobile terminal 11 that is installed on the cross-country car.Wherein said honeycomb mobile radio equipment 6, Digital Clustering radio-frequency apparatus 7, multimode mobile switch 8 and media business management server 9 are interconnected by the IP link; and access network based on ethernet exchange 4; wireless information device 10 and multimode mobile subscriber terminal 11 insert described comprehensive mobile communication system by air interface respectively, realize multimode speech, note, data, image and video transmission.
Described multimode mobile switch 8 adopts based on IMS (IP Multimedia Subsystem, IP Multimedia System) IP-based switching's technology of framework, use for reference software radio thought, highly integrated and realized the function of mobile switching centre (MSC), attaching position register/VLR Visitor Location Register (HLR/VLR), short message service center (SMSC), packet data serving node (PDSN) and AUC (AUC) in the legacy cellular GSM and a plurality of access network base stations controller (BSC), a plurality of radio network controller (RNC) etc.
Described multimode mobile switch 8 realizes that by the IAD of different systems the multimode air interface inserts with Digital Clustering radio-frequency apparatus 7 in conjunction with honeycomb mobile radio equipment 6, IAD has SGW and medium gateway function, by encapsulation to air interface protocols, finish the signaling/media stream formats translation function between wireless access network and IP network, thereby with the GSM of different radio system (cell mobile communication systems for example, Digital Clustering GSM and radio information transmitting system) be integrated in same switching plane, described multimode mobile switch 8 is by the multi-standard Tandem Gateway, support satellite, microwave, optical fiber, E1, multiple access bearer mode such as IP, realize Media Stream compression and the adaptive fusion of multi-layer protocol, made things convenient for the emergent access of communication support car under different condition.The communication thought that breaks traditions simultaneously changes network architecture, by the conversion of common protocol to proprietary protocol, only uses less Internet resources just can satisfy many communication support cars and inserts simultaneously, has greatly improved the utilization of resources and access alerting ability.
Described media business management server 9 is realized the support of mobile communication business gateway, mobile communication expansion service and integrated service management, as: data access, domain name mapping, video-on-demand service etc.
Described Shortwave Communication System comprises short-wave radio set antenna, vehicle-mounted short-wave radio set 14 and the wire and wireless interconnecting device 15 that is installed on the cross-country car car, and portable short-wave radio set is called out satellite phone or Public Switched Telephone Network (PSTN) phone by vehicle-mounted short-wave radio set 14.Vehicle-mounted short-wave radio set 14 inserts multimedia command and control center 12 by wire and wireless interconnecting device 15, by manual answering's switching, finishes the transfering the letter function between short-wave radio set and cable network.
Described multimedia command and control center 12, link to each other with Ethernet switch 4 by the IP link, multimedia command and control center 12 can be to digital trunked mobile communication system, cell mobile communication systems, Shortwave Communication System, vehicle-mountedly look audio system and GPS/ Big Dipper bimodulus position fixing system is carried out unified command scheduling, and realize multicast, logically broadcast, scheduling and controllable function such as dynamically reorganization, conference cal, forced interposing and forced releasing, ambience listening, point-to-multipoint short message, call monitoring, status poll.
The described vehicle-mounted audio system of looking comprises headrest monitoring device 17, on-board screen 18, vehicle audio 19, looks in the audio frequency switching matrix 20, image codec 21, car pick up camera 23 behind pick up camera 22, the car and is installed in monopod video camera 24 on the cross-country car car.Each video and audio equipment connects by the VGA cable, and image codec 21 is connected with Ethernet switch 4 by the IP link.In advancing, it is open-minded to star and communication link that described emergency communication service truck is finished antenna automatically, monopod video camera 24 collections image on the way by roof, after reaching the spot, utilize pick up camera 22 and wireless messages transmission equipment 10 collection site images in the car, the broadband wireless link that provides by cell mobile communication systems reaches headrest monitoring device 17 or on-board screen 18 demonstrations, or through image codec 21 with the input the AV signal carry out compressed encoding, output IP group image, encoded image data transfers to ground central station through satellite link, transfer to ground control control center through ground network again, for it provides the image scene support; Command centre also can deliver to central sation through terrestrial network with picture signals such as job placement, meeting scene, remote guides, downlink via satellite, utilize image codec 21 that the picture signal that receives is decompressed, recover analog video signal, send into and look audio frequency switching matrix 20, be presented on the headrest monitoring device 17.
Described GPS/ Big Dipper bimodulus position fixing system comprises antenna and the GPS/ Big Dipper bimodulus location receiver 13 that is installed on the cross-country car car, and it provides time service accurately and positioning function for the emergency communication service truck.
Described GPS/ Big Dipper bimodulus location receiver 13 can provide latitude and longitude information, preferentially selects for use GPS to position, and also can realize the sending and receiving short messages business.
Described voice gateways 16 carry out Che Nei or the voice signal that receives by signal wall box 25 to carry out channel encoding again after the processing such as analogue to digital conversion, compressed encoding, sampling, IP encapsulation, and processing such as modulation are sent into satellite channel and passed central sation back, the access terrestrial network.Otherwise in like manner.Realize the intercommunication of in-car phoning and terrestrial network phone.
The comprehensive emergency communication service truck of described communication in moving also comprises electric power system, adopts multiple power supply modes such as civil power, mobile generator, power taking electrical generator and storage battery, satisfies the power demands of the comprehensive emergency communication service truck of described communication in moving under varying environment.
The comprehensive emergency communication service truck of described communication in moving representative type mode of operation has three kinds: far-end inserts, this locality covers and networking is interconnected.
In far-end cut into operation pattern, the comprehensive emergency communication service truck of described communication in moving provides satellite link and two kinds of access means of optical cable, with signal communication, information exchange and the information access center of satellite central sation as system, business such as phone, data and video are sent to the satellite central sation, and inserting the wired and wireless network in ground, Vehicle mounted station enters terrestrial network by near the shortwave platform calling out.
Cover in the mode of operation in this locality, the comprehensive mobile communication system of the comprehensive emergency communication service truck of described communication in moving can provide this locality of 60-120 multi-module mobile terminal 11 to insert and be transformed into vehicle-mounted group telephone, coverage 2-25 kilometer, when stopping, vehicle provide 12 road telephones to central sation by signal wall box 25, provide 8 circuit-switched data ports to form local area network, finish the voice communication that short-wave radio set arrives vehicle-mounted short-wave radio set in the overlay area, and switchable to vehicle-mounted group telephone.Utilize wireless information device 10 to realize the collection and the monitoring of vehicle periphery image scene, coverage 2-5 kilometer.
In the interconnected mode of operation of networking, the link topological structure of the comprehensive emergency communication support system of described communication in moving of the comprehensive emergency communication service truck of described communication in moving is a radial network, can finish the communication of IP data service between the comprehensive emergency communication service truck of described communication in moving by central sation in the mode of satellite double jump, can realize inter operation between each website in the whole network, support the transfer function of IP data, computer documents and IP video image.The IP data service of central sation enters satellite network by the router of ground station, the IP data service of communication truck enters satellite network by the subsidiary router of modem, enter and to carry out related protocol to the IP data before the satellite network and set up, to improve the transfer rate of data on satellite channel.
In the utility model the foregoing description, provide a kind of communication in moving comprehensive emergency communication service truck, its actv. optimizes and combines existing three kinds of communication trucks, use the signaling/media stream formats conversion between different systems such as multimode mobile switch realization cellular mobile communication, digital cluster communication, short wave communication, can support multimode user terminal to insert, that realizes type of transmission such as satellite, shortwave, E1, IP and existing network by the multi-standard Tandem Gateway interconnects the realization outgoing telecommunication.Realize the multiple-link satellite voice communication simultaneously.Use cellular mobile communication and digital cluster communication radio-frequency apparatus to build mobile communications network; the realization signal covers; coverage is approximately the 3-25 kilometer; and finish the multimode speech; note; data service; realize control; exchange; decision-making; multi-functional command schedulings such as inquiry; satisfy rescue and relief work on-scene communication commander's real-time; the validity requirement; satisfy the requirement that command centre realizes remote command control and communication; can be motor-driven; information promptly and accurately is provided flexibly; be convenient to the command scheduling and the decision-making of command centre, and provide the mobile communication guarantee for local user.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (6)
1. the comprehensive emergency communication service truck of communication in moving is characterized in that, the comprehensive emergency communication service truck of described communication in moving comprises: the comprehensive emergency communication support system of cross-country car and communication in moving; The comprehensive emergency communication support system of described communication in moving comprises: satellite communication system, comprehensive mobile communication system, Shortwave Communication System, multimedia command and control center (12), vehicle-mounted audio system, GPS/ Big Dipper bimodulus position fixing system and the voice gateways (16) of looking; Wherein,
Described satellite communication system communicates with satellite communication network by the communication in moving Car antnna (1) that is installed on the cross-country car;
Described comprehensive mobile communication system comprises honeycomb portable antenna, honeycomb mobile radio equipment (6), Digital Clustering radio-frequency apparatus (7), multimode mobile switch (8), media business management server (9), wireless information device (10) and the multi-module mobile terminal (11) that is installed on the cross-country car; Described honeycomb mobile radio equipment (6) is connected with multimode mobile switch (8) by the IP link respectively with Digital Clustering radio-frequency apparatus (7), described multimode mobile switch links to each other with described satellite communication system by the IP link respectively with media business management server (9), described wireless information device (10) and multimode mobile subscriber terminal (11) insert described comprehensive mobile communication system by air interface respectively, realize multimode speech, note, data, image and video transmission;
Described Shortwave Communication System comprises short-wave radio set antenna, interconnected vehicle-mounted short-wave radio set (14) and the wire and wireless interconnecting device (15) that is installed on the cross-country car car, and portable short-wave radio set is called out satellite phone or common exchanging telephone network PSTN phone by vehicle-mounted short-wave radio set (14); Vehicle-mounted short-wave radio set (14) inserts multimedia command and control center (12) by wire and wireless interconnecting device (15), by manual answering's switching, finishes the transfering the letter function between short-wave radio set and cable network;
Described multimedia command and control center (12) links to each other with wire and wireless interconnecting device (15) with described satellite communication system by the IP link respectively, to described comprehensive mobile communication system, vehicle-mountedly look audio system and GPS/ Big Dipper bimodulus position fixing system is carried out unified command scheduling;
The described vehicle-mounted audio system of looking is connected with described satellite communication system by the IP link, be connected with described multimedia command and control center (12) by the VGA cable, to video/audio gather, encoding and decoding are handled and show;
Described GPS/ Big Dipper bimodulus position fixing system provides time service accurately and positioning function for the comprehensive emergency communication service truck of described communication in moving;
Described voice gateways (16) are connected with described satellite communication system by the IP link, voice signal is carried out carrying out channel encoding again after analogue to digital conversion, compressed encoding, sampling, the IP encapsulation process, modulation treatment, send into satellite channel and pass the satellite central sation back, insert terrestrial network, realize the intercommunication of in-car phoning and terrestrial network phone.
2. the comprehensive emergency communication service truck of communication in moving as claimed in claim 1 is characterized in that, the comprehensive emergency communication service truck of described communication in moving also comprises electric power system;
Described electric power system adopts one or more power supply modes in civil power, mobile generator, power taking electrical generator and the storage battery.
3. the comprehensive emergency communication service truck of communication in moving as claimed in claim 1, it is characterized in that described satellite communication system comprises by the interconnected communication in moving Car antnna of IP link (1), broadband modem (2), IP accelerator (3), Ethernet switch (4) and router (5).
4. the comprehensive emergency communication service truck of communication in moving as claimed in claim 1, it is characterized in that described multimode mobile switch (8) realizes that by the IAD of different systems the multimode air interface inserts with described Digital Clustering radio-frequency apparatus (7) in conjunction with described honeycomb mobile radio equipment (6); Described multimode mobile switch (8) is supported satellite, microwave, optical fiber, many kinds of access bearer modes of E1, IP also by the multi-standard Tandem Gateway.
5. the comprehensive emergency communication service truck of communication in moving as claimed in claim 3, it is characterized in that, the described vehicle-mounted audio system of looking comprises and looks audio frequency switching matrix (20), and looks in headrest monitoring device (17) that audio frequency switching matrix (20) is connected, on-board screen (18), vehicle audio (19), image codec (21), the car pick up camera (23) behind pick up camera (22), the car and be installed in monopod video camera (24) on the cross-country car car with described by the VGA cable; Described image codec (21) is connected with Ethernet switch (4) by the IP link; Described monopod video camera (24) is used to gather the comprehensive emergency communication service truck of described communication in moving image on the way, pick up camera (23) is used to gather emergent on-the-spot image behind interior pick up camera (22) of described car and the car, and the image of being gathered shows by headrest monitoring device (17) or on-board screen (18), or behind image codec (21) compressed encoding, transfer out through satellite link; Perhaps, image codec (21) will decompress by the picture signal that described satellite communication system receives, and recovers analog video signal, sends into and looks audio frequency switching matrix (20), is presented on the headrest monitoring device (17).
6. the comprehensive emergency communication service truck of communication in moving as claimed in claim 1 is characterized in that, described GPS/ Big Dipper bimodulus position fixing system comprises antenna and the GPS/ Big Dipper bimodulus location receiver (13) that is installed on the cross-country car car;
Described GPS/ Big Dipper bimodulus location receiver (13) is used to provide latitude and longitude information, selects for use GPS or Big Dipper position fixing system to position.
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2010
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| CN108811191A (en) * | 2018-09-18 | 2018-11-13 | 南昌工程学院 | microwave channel, mobile communication, satellite communication network access system and working method |
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Inventor after: Liu Gengshan Inventor after: Yu Yang Inventor after: Kong Lingli Inventor after: Lv Chao Inventor after: He Fang Inventor after: Wang Zhilin Inventor before: Liu Gengshan Inventor before: Yu Yang Inventor before: Kong Lingli Inventor before: Lv Chao Inventor before: He Fang Inventor before: Tian Bo |
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