CN204537471U - A kind of ground base navigation system for aviation aircraft - Google Patents
A kind of ground base navigation system for aviation aircraft Download PDFInfo
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- CN204537471U CN204537471U CN201520162896.3U CN201520162896U CN204537471U CN 204537471 U CN204537471 U CN 204537471U CN 201520162896 U CN201520162896 U CN 201520162896U CN 204537471 U CN204537471 U CN 204537471U
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Abstract
This practicality relates to a kind of ground base navigation system for aviation aircraft, comprises the DME equipment containing GPRS communication module, communication base station and the display device containing GPRS communication module; DME equipment and display terminal are in the coverage of communication base station all respectively, and preferred DME equipment and terminal are in the coverage of 98% of communication base station.
Description
Technical field
This practicality relates to a kind of ground base navigation system for aviation aircraft.
Background technology
DME (Distance Measuring Equipment) stadimeter be International Civil Aviation Organization's regulation for the navigator of aircraft on far away, short range air route, it provides measures the oblique distance of aircraft relative to ground stadimeter platform.As the navigator of aircraft, the environment so installed and work then may be very harsh, whether the serviceability of equipment is normal, whether can the important running parameter of precision navigation aircraft etc., be real-time transmitted to administrative center to monitor, so GPRS radio communication just seems particularly important, is the important bridge that DME equipment communicates with administrative center.
Summary of the invention
In order to solve prior art Problems existing, this practicality provides a kind of ground survey equipment of the ground base navigation system for aviation aircraft, comprise the DME equipment with GPRS communication module, communication base station and the display device with GPRS communication module, ensure that completing data in the coverage that DME equipment and terminal are in 98% of communication base station transmits, wherein, DME equipment has data sending terminal, the packet being split as a certain size is carried out by needing the data of transmission, package and encryption are carried out to each packet, current idle channel is utilized to be gone out by Packet Generation, the receiving end of data, corresponding working channel receives the data of transmission, and be decrypted and unpack process, extracts corresponding small data packets, the multiple small data packets finally will received, and carries out integrating forming complete data content.
Accompanying drawing explanation
In order to be illustrated more clearly in this practical embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of this practicality, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Accompanying drawing 1:GPRS communicates to connect schematic diagram between DME facilities and administration center
Embodiment
A kind of ground base navigation system for aviation aircraft that this practicality relates to, aircraft accurately can calculate the distance between the machine and ground DME beacon by the radio signal receiving process and send from DME.According to the requirement of International Civil Aviation Organization, DME as a main radio navigation standard, is widely used in airport all over the world or air route.
In DME equipment, need to comprise GPRS communication module, long-range display terminal also needs GPRS communication module and DME equipment and display terminal all must be in the coverage of communication base station respectively, in order to normal communication and good communication quality can be ensured, equipment and terminal is needed to be in 98% coverage of communication base station.
DME equipment is specific data layout by organizing the running parameter of self, be transferred to GPRS module, GPRS module is supported by own hardware, useful data layout is divided into groups, pack, add the destination address transmitted, the GPRS logic channel distributing air interface, add GPRS radio link protocol and determine cipher mode etc., then packet is sent out successively.
The transmitting procedure of packet successively through the transfer service of one or more base station, finally can arrive on the destination address in packet.
GPRS, by wireless, packet-switched transmission technology, utilizes mobile cellular data network to transmit, in the coverage of mobile base station, completes the long-distance transmissions of packet.
The transmitting terminal of data:
By needing the data of transmission to carry out the packet being split as a certain size, package and encryption being carried out to each packet, with the requirement of applicable transmission, is utilizing current idle channel, Packet Generation is gone out.
The receiving end of data:
Corresponding working channel receives the data of transmission, and be decrypted and unpack process, extracts corresponding small data packets, the multiple small data packets finally will received, and carries out integrating forming complete data content.
When on the opertaing device that the data on DME equipment need to be transferred to far-end, adopt above-mentioned transmitting-receiving mode, transmit within the scope of cellular network, realize low cost, monitor in real time at a distance and wireless remote control, duty and the switching working mode of equipment can be understood in time.
Navigational system described in this practicality is applicable to waypoint navigation (1000W) and airport terminal navigation (100W); And adopt binary channels double copies system, can realize active and standby formula and hot standby formula, system stability is high.This navigational system has automated closed-loop test function, real-time closed-loop test correction is carried out to the correlation parameter of system, also there is the closed loop self-checking function in evening simultaneously, can the duty of real-time report system, Intelligent management of power system, can continuous firing more than 4 hours after AC dump.This navigational system is connected with computer by RS-232 or network, realizes the multiple control modes such as local control, Long-distance Control.
In a preferred embodiment, the key technical indexes of described navigational system is as follows:
Frequency of operation is 960 ~ 1215MHz, totally 126 radio frequency channels; Emission peak power is 1000W or 100W; Receive bandwidth:
A) minimum bandwidth of receiver be when the interrogating signal frequency deviation inputted reach ± 100KHz time, the drift total due to receiver and the transponder sensitivity level that causes reduce should more than 3dB;
B) when between inquiry, signal departs from radio frequency channel nominal frequency ± more than 900KHz, and power density reaches-22dBW/m
2, transponder should do not made to trigger.
Transponder pulse waveform: Gaussian waveform, the recurrent interval should be 12us (X pattern) or 30us (Y mode), and interval measurement should between the half voltage amplitude points of pulse front edge.
Target capacity: >=100 framves/second; Reply efficiency: >=70%.
Mean free error time MTBF: ﹥ 5000h; Antenna: omnidirectional antenna, vertical polarization, gain: 9dBi;
Power requirement:
AC:220V; Frequency: 47Hz ~ 63Hz;
Power consumption :≤300W (single channel)
Working environment
The working temperature of indoor equipment :-10 degrees Celsius ~+50 degrees Celsius; Relative humidity: less than 95%, frozen-free
The working temperature of outdoor equipment :-40 degrees Celsius ~+70 degrees Celsius; Relative humidity: less than 100%, frozen-free
Wind speed: 0 ~ 150Km/h
In a preferred embodiment, navigational system performs ICAO The International Civil Aviation Covenant annex 10, " aeronautical telecommunication " distance-measuring equipment (DME/N) specification; International Civil Aviation Organization 8071 file radio navigation aids manual testing; GB6364-86 aeronautical radio navigation station electromagnetic environment requirements; MH/T4003-1996 aeronautical radio navigation platform and ATC radar station arrange place specification etc.
The foregoing is only the preferred embodiment of this practicality, not in order to limit this practicality, within all spirit in this practicality and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in this practicality.
Claims (2)
1. the ground base navigation system for aviation aircraft, comprise the DME equipment with GPRS communication module, communication base station and the display device with GPRS communication module, ensure that DME equipment and terminal are in the coverage of 98% of communication base station, can data-transformation facility be realized, wherein, DME equipment has packet sending function, the packet being split as a certain size is carried out by needing the data of transmission, package and encryption are carried out to each packet, utilizes current idle channel to be gone out by Packet Generation; The receiving end of data, corresponding working channel receives the data of transmission, and be decrypted and unpack process, extracts corresponding small data packets, the multiple small data packets finally will received, and carries out integrating forming complete data content.
2. ground base navigation system according to claim 1, the quantity of described communication base station is one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520162896.3U CN204537471U (en) | 2015-03-20 | 2015-03-20 | A kind of ground base navigation system for aviation aircraft |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520162896.3U CN204537471U (en) | 2015-03-20 | 2015-03-20 | A kind of ground base navigation system for aviation aircraft |
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| CN204537471U true CN204537471U (en) | 2015-08-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106027560A (en) * | 2016-07-06 | 2016-10-12 | 连山管控（北京）信息技术有限公司 | Intelligent terminal oriented security transmission method and system |
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2015
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106027560A (en) * | 2016-07-06 | 2016-10-12 | 连山管控（北京）信息技术有限公司 | Intelligent terminal oriented security transmission method and system |
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