CN104363068A - Self-help aeronautical meteorology broadcasting system capable of automatically adapting to busyness - Google Patents
Self-help aeronautical meteorology broadcasting system capable of automatically adapting to busyness Download PDFInfo
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- CN104363068A CN104363068A CN201410589278.7A CN201410589278A CN104363068A CN 104363068 A CN104363068 A CN 104363068A CN 201410589278 A CN201410589278 A CN 201410589278A CN 104363068 A CN104363068 A CN 104363068A
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Abstract
The invention belongs to the technical field of avionics, and relates to a self-help aeronautical meteorology broadcasting system capable of automatically adapting to busyness. The self-help aeronautical meteorology broadcasting system comprises a VHF (very high frequency) communication module, an FPGA (field programmable gate array) control module, an industrial personal computer processing module, a sensor collection module and a sensor module. The self-help aeronautical meteorology broadcasting system has the advantages that self-help airport meteorological information broadcasting is realized by means of traffic guidance frequencies of existing airports, and accordingly, the utilization rate of the traffic guidance frequencies is increased; since the technology of automatically adapting to busyness is adopted, traffic guidance of control towers is not interfered by aeronautical meteorological information broadcasting; a self-help service is adopted, so that power consumption of the broadcasting system is lowered, and a solar power supply mode is possibly applied to the broadcasting system.
Description
Technical field
The invention belongs to avionics field, relate to the self-service aeronautical meteorology broadcasting system of the busy degree of a kind of self adaptation.
Background technology
Aeronautical meteorology is for flight safety important, and existing transporter field aerial meteorological broadcast system utilizes a proprietary frequency of VHF, loop play weather and transport information, obtains aerodrome and transport information for dealing landing aircraft.Comparatively flight landing is busy on existing transport airport, and Meteorological Services utilance is higher, and frequency resource is utilized effectively.But the aeronautical meteorology that most navigation airport does not have application-specific reports proprietary frequency, has only applied for point duty frequency.The report of aeronautical meteorology mainly relies on the artificial numerical value reading meteorological observation equipment, then informs pilot by tower man, inefficiency, because artificial origin easily produces mistake and response speed is slow.On the other hand, control tower personnel cannot respond the service request of pilot for 24 hours.For navigation airport or unattended interim landing point, dealing aircraft and landing number of times are much smaller than transport airport, and special application in addition frequency is used for the waste that weather information broadcast obviously causes this frequency.The automatic meteorological broadcasting system on navigation airport, can cause system power dissipation to raise according to 24 h cycle broadcastings, for the area being in remote districts or power supply inconvenience, is difficult to realize adopting sun supply power mode.
Summary of the invention
Goal of the invention: for improving the frequency efficiency of automatic meteorological broadcasting system and reducing the power consumption of automatic meteorological broadcasting system, utilize the point duty frequency on existing navigation airport, propose the self-service aeronautical meteorology broadcasting system of the busy degree of a kind of self adaptation.
Technical scheme: the self-service aeronautical meteorology broadcasting system of the busy degree of a kind of self adaptation, comprises VHF communication module 01, FPGA control module 02, industrial computer processing module 03, transducer acquisition module 04, sensor assembly 05, wherein the PTT control inputs of VHF communication module 01 is connected with the I/O of FPGA control module 02, the audio interface of VHF communication module 01 is connected with the audio interface of industrial computer processing module 03, the I/O of FPGA control module 01 is connected with the I/O of industrial computer processing module, the serial line interface of industrial computer processing module 03 is connected with the serial line interface of transducer acquisition module 04, the I/O of transducer acquisition module 04 is connected with the I/0 of sensor assembly, and described FPGA control module 02 comprises VHF radio station PTT control circuit 06, VHF radio signals identification circuit 07, FPGA 08, power module 09, PROM 10, wherein the output of VHF radio signals identification circuit 07 connects the input of FPGA 08, and PROM 10 output meets FPGA 08 and inputs, and FPGA 08 exports the input connecing VHF radio station PTT control circuit 06, and the output of power module 09 connects VHF radio station PTT control circuit 06, VHF radio signals identification circuit 07, FPGA 08, the power interface of PROM 10, described transducer acquisition module 04 comprises front end modulate circuit 11, one RS-485 driver 12, hysteresis comparison circuit 13, variable connector 14, programmable amplifier 15, A/D converter 16, CPLD 17, RS-232 driver 18, CPU 19, 2nd RS-485 driver 20, power supply 212, wherein the difference output of front end modulate circuit 11 connects the analog input interface of variable connector 14, the analog differential of variable connector 14 exports the Differential Input connecing programmable amplifier 15, the simulation Single-end output of programmable amplifier 15 connects the simulation single ended input of A/D converter 16, and the Parallel Digital of A/D converter 16 exports, the I/0 of the one RS-485 driver 12, the Single-end output of hysteresis comparison circuit 13 connects the I/O interface of CPLD 17, Parallel I/O of CPLD 17 meets the Parallel I/O of CPU 19, the UART interface of CPU 19 is connected with the I/O of the 2nd RS-485 driver 20, the UART interface of I/O and the CPU 19 of RS-232 driver 18 is connected, the output of power supply 21 and front end modulate circuit 11, one RS-485 driver 12, hysteresis comparison circuit 13, variable connector 14, programmable amplifier 15, A/D converter 16, CPLD 17, RS-232 driver 18, CPU 19, the power interface of the 2nd RS-485 driver 20 is connected.
FPGA control module 02 can obtain the whether occupied of current communication frequency by VHF communication module 01.
FPGA control module 02 can be identified in the occupied certain number of times of ongoing frequency in certain hour section by VHF communication module 01, and occupied for frequency in certain hour section certain number of times is judged to be a service request, FPGA control module 03 sends service request information to industrial computer processing module 03.
Industrial computer processing module 03, before broadcasting voice document, utilizes FPGA control module 2 to monitor VHF communication module 01 and learns that whether ongoing frequency is occupied, if ongoing frequency is occupied exceed certain hour, do not carry out the report of voice document.
Industrial computer processing module 03 is before broadcasting voice document, utilize FPGA control module 2 to monitor VHF communication module 01 how long to idle to obtain ongoing frequency, determine the busy degree of ongoing frequency by the free time of frequency, industrial computer processing module 03 is carried out cutting according to busy degree and is reported content.
Industrial computer processing module 03 is broadcast by the PTT functional realiey voice document of FPGA control module 02 control VHF communication module 01.
Beneficial effect: the present invention utilizes the self-service report aerodrome meteorological information of the point duty frequency on existing navigation airport, improves the utilance of navigation aerodrome traffic command frequency.Owing to using the busy degree technology of self adaptation, the report of aeronautical meteorology information can not interfere with the point duty of control tower.Adopt self-help service, reduce the power consumption of broadcasting system, for broadcasting system uses solar powered mode to provide possibility.
Accompanying drawing explanation
Fig. 1 is System Working Principle block diagram of the present invention.
Fig. 2 is the theory diagram of FPGA control module 02.
Fig. 3 is the theory diagram of transducer acquisition module 04
Embodiment
Below in conjunction with accompanying drawing, invention is described in further detail, refers to Fig. 1 to Fig. 3.
Consult Fig. 1, the present invention is made up of VHF communication module 01, FPGA control module 02, industrial computer processing module 03, transducer acquisition module 04, sensor assembly 05.The PTT control inputs of VHF communication module 01 is connected with the I/O of FPGA control module 02, the audio interface of VHF communication module 01 is connected with the audio interface of industrial computer processing module 03, the I/O of FPGA control module 01 is connected with the I/O of industrial computer processing module, the serial line interface of industrial computer processing module 03 is connected with the serial line interface of transducer acquisition module 04, and the I/O of transducer acquisition module 04 is connected with the I/0 of sensor assembly.
VHF communication module 01 refers to the VHF transceiver of aviation frequency range, is responsible for meteorological voice messaging to utilize the mode of VHF to send to service requester, and VHF communication module is monitored the communication on ongoing frequency simultaneously.
The PTT function of FPGA control module 02 pair of VHF communication module 01 controls, receive the ongoing frequency communication information of VHF communication module simultaneously, to whether service request occurring, and which kind of service request judges, service request information is sent to industrial computer processing module.
Industrial computer processing module 03 receives the service request information that FPGA control module 03 obtains, the weather information that transducer acquisition module 04 obtains is processed, generate the meteorological file of corresponding voice, according to the ongoing frequency communications status that FPGA control module 03 is monitored, optionally voice document is broadcast away by VHF communication module 01.
Transducer acquisition module 04 mainly carries out acquisition and processing to the signal of each transducer, meteorological data is sent to industrial computer processing module 03.
Sensor assembly 05 mainly comprises several sensor elements, is responsible for each meteorological element information in the perception external world.
The course of work of the present invention is as follows:
(1). the transmission of Self-Service request
Pilot or other Meteorological Services requestor are by clicking the transmission that the certain number of times of PTT key realizes service request fast within a certain period of time.Because aviation VHF communication belongs to half-duplex operation, namely the same time can only have one can send information on channel.Such as, service requester clicks PTT key 3 times fast, and so communication frequency is taken 3 times in section at this moment continuously.
(2). the judgement of service request and identification
System monitors the state of current communication frequency by VHF communication module 01, and it is state A that ongoing frequency has during communication, is B without state during communication.This status signal is outputted to FPGA control module 02, suppose that a service request in 2 seconds, clicks PTT key 3 times, namely in 2 seconds, FPGA control module 02 can receive the signal of BABABAB, if FPGA control module 02 receives this signal, think and got a service request, FPGA control module then sends service request signal to industrial computer processing module 03.The number of clicks of service request and time can be arranged.
(3). the generation of voice broadcast file
After industrial computer processing module 03 receives service request signal, obtain meteorological sensor module 05 information of current sensor acquisition module 04, first generating corresponding voice broadcast Word message, by mating the sound bank recorded in advance, synthesizing meteorological voice broadcast file.
(4). the judgement of the busy degree of communication frequency
After industrial computer processing module 03 receives a service request and generates corresponding voice broadcast file, start to monitor current communication frequency state, if ongoing frequency is occupied, then when waiting for that frequency is idle, then carry out voice broadcast.If ongoing frequency is occupied for a long time, ignore this service request, do not carry out voice broadcast, in order to avoid affect normal point duty communication.
The busy degree that communicates is reflected by idle time of channel, certainly receiving service request, if request occur for the previous period in Tq frequency all not occupied, and ongoing frequency does not also communicate, then think that frequency is idle, after receiving service request, make an immediate response, broadcast meteorological voice document.
If request occur for the previous period in Tq frequency have occupied mistake, but current state lower frequency does not have occupied, then think that ongoing frequency is in busy state, readjust speech play file, only broadcast the highest weather information of priority, reduce the acquisition frequency time.
Different Tq interval values can be set classification is carried out to busy degree, thus corresponding different speech play contents.
(5). broadcasting of voice broadcast file
The audio frequency of industrial computer processing module 03 is exported and is connected with the audio frequency input of VHF communication module 01, industrial computer processing module 03 is by the PTT function of FPGA control module 02 control VHF communication module 01, when voice document broadcast by needs, first industrial computer processing module 03 connects the PTT of VHF communication module 01 by FPGA control module 02, VHF communication module 01 is made to be in transmission state, exported audio input port voice document being sent to VHF communication module 01 again by audio frequency, voice document is broadcast away.
See Fig. 2, FPGA control module 02 of the present invention comprises VHF radio station PTT control circuit 06, VHF radio signals identification circuit 07, FPGA 08, power module 09, PROM 10.Wherein the output of VHF radio signals identification circuit 07 connects the input of FPGA 08, and PROM 10 output meets FPGA 08 and inputs, and FPGA 08 exports the input connecing VHF radio station PTT control circuit 06.The output of power module 09 connects the power interface of VHF radio station PTT control circuit 06, VHF radio signals identification circuit 07, FPGA 08, PROM 10.
The communications status of VHF signal recognition circuit 07 in identification channel, is sent to FPGA 08 accurately by communications status.
The PTT control circuit 06 of VHF receives the control signal of FPGA, realizes opening or closing of VHF radio station PTT key.
The current channel communications condition indicative signal of FPGA08 Received signal strength identification circuit 07, judges whether to create service request and further clear and definite request service kind.
PROM 10 stores FPGA working procedure.
See Fig. 3. transducer acquisition module 04 of the present invention comprises front end modulate circuit 11, a RS-485 driver 12, hysteresis comparison circuit 13, variable connector 14, programmable amplifier 15, A/D converter 16, CPLD 17, RS-232 driver 18, CPU 19, the 2nd RS-485 driver 20, power supply 21.Wherein the difference output of front end modulate circuit 11 connects the analog input interface of variable connector 14, the analog differential of variable connector 14 exports the Differential Input connecing programmable amplifier 15, the simulation Single-end output of programmable amplifier 15 connects the simulation single ended input of A/D converter 16, the Parallel Digital of A/D converter 16 exports, the I/0 of the one RS-485 driver 12, the Single-end output of hysteresis comparison circuit 13 connects the I/O interface of CPLD 17, Parallel I/O of CPLD 17 meets the Parallel I/O of CPU 19, the UART interface of CPU 19 is connected with the I/O of the 2nd RS-485 driver 20, the UART interface of I/O and the CPU 19 of RS-232 driver 18 is connected, the output of power supply 21 and front end modulate circuit 11, one RS-485 driver 12, hysteresis comparison circuit 13, variable connector 14, programmable amplifier 15, A/D converter 16, CPLD 17, RS-232 driver 18, CPU 19, the power interface of the 2nd RS-485 driver 20 is connected.
Front end modulate circuit 11 receiving sensor analog output signal, and lightning protection anti electrostatic process is carried out to the signal of input, avoid surging signal to damage System Back-end core devices.
Variable connector 14 is for the analog input signal of gating multiple sensor.
Programmable amplifier 15 is configured by the analog signal gain of software to each passage, makes A/D converter 16 can carry out full scale conversion to each channel signal, improves sampling precision.
A/D converter 16 realizes the analog-to-digital conversion of signal.
485 level conversion, for the RS-485 signal of receiving sensor, are Transistor-Transistor Logic level by the one RS-485 driver 12.
Hysteresis comparison circuit 13 is mainly used in frequency quantity and the on-off model of receiving sensor, and the signal received is converted to digital signal.
CPLD 17 gathers the input signal of modules under the control of cpu.
RS-232 level conversion is Transistor-Transistor Logic level by RS-232 driver 18: the RS-232 signal of receiving sensor.
2nd RS-485 driver 20 is for being sent to industrial computer processing module by the sensing data collected.
CPU 19 is for gathering multiple sensor signal, and packing also sends to industrial computer by the 2nd RS-485 driver 20.
Claims (6)
1. a self-service aeronautical meteorology broadcasting system for the busy degree of self adaptation, is characterized in that, comprises VHF communication module [01], FPGA control module [02], industrial computer processing module [03], transducer acquisition module [04], sensor assembly [05], wherein the PTT control inputs of VHF communication module [01] is connected with the I/O of FPGA control module [02], the audio interface of VHF communication module [01] is connected with the audio interface of industrial computer processing module [03], the I/O of FPGA control module [01] is connected with the I/O of industrial computer processing module, the serial line interface of industrial computer processing module [03] is connected with the serial line interface of transducer acquisition module [04], the I/O of transducer acquisition module [04] is connected with the I/0 of sensor assembly, and described FPGA control module [02] comprises VHF radio station PTT control circuit [06], VHF radio signals identification circuit [07], FPGA [08], power module [09], PROM [10], wherein the output of VHF radio signals identification circuit [07] connects the input of FPGA [08], PROM [10] exports and connects FPGA [08] input, FPGA [08] exports the input connecing VHF radio station PTT control circuit [06], and the output of power module [09] connects VHF radio station PTT control circuit [06], VHF radio signals identification circuit [07], FPGA [08], the power interface of PROM [10], described transducer acquisition module [04] comprises front end modulate circuit [11], one RS-485 driver [12], hysteresis comparison circuit [13], variable connector [14], programmable amplifier [15], A/D converter [16], CPLD [17], RS-232 driver [18], CPU [19], 2nd RS-485 driver [20], power supply [21], wherein the difference output of front end modulate circuit [11] connects the analog input interface of variable connector [14], the analog differential of variable connector [14] exports the Differential Input connecing programmable amplifier [15], the simulation Single-end output of programmable amplifier [15] connects the simulation single ended input of A/D converter [16], and the Parallel Digital of A/D converter [16] exports, the I/0 of the one RS-485 driver [12], the Single-end output of hysteresis comparison circuit [13] connects the I/O interface of CPLD [17], Parallel I/O of CPLD [17] meets the Parallel I/O of CPU [19], the UART interface of CPU [19] is connected with the I/O of the 2nd RS-485 driver [20], the UART interface of I/O and the CPU [19] of RS-232 driver [18] is connected, the output of power supply [21] and front end modulate circuit [11], one RS-485 driver [12], hysteresis comparison circuit [13], variable connector [14], programmable amplifier [15], A/D converter [16], CPLD [17], RS-232 driver [18], CPU [19], the power interface of the 2nd RS-485 driver [20] is connected.
2. the self-service aeronautical meteorology broadcasting system of the busy degree of a kind of self adaptation according to claim 1, is characterized in that, FPGA control module [02] can obtain the whether occupied of current communication frequency by VHF communication module [01].
3. the self-service aeronautical meteorology broadcasting system of the busy degree of a kind of self adaptation according to claim 1, it is characterized in that, FPGA control module [02] can be identified in the occupied certain number of times of ongoing frequency in certain hour section by VHF communication module [01], and occupied for frequency in certain hour section certain number of times is judged to be a service request, FPGA control module [03] sends service request information to industrial computer processing module [03].
4. the self-service aeronautical meteorology broadcasting system of the busy degree of a kind of self adaptation according to claim 1, it is characterized in that, industrial computer processing module [03] is before broadcasting voice document, utilize FPGA control module [2] to monitor VHF communication module [01] and learn that whether ongoing frequency is occupied, if ongoing frequency is occupied exceed certain hour, do not carry out the report of voice document.
5. the self-service aeronautical meteorology broadcasting system of the busy degree of a kind of self adaptation according to claim 1, it is characterized in that, industrial computer processing module [03] is before broadcasting voice document, utilize FPGA control module [2] monitoring VHF communication module [01] to obtain ongoing frequency how long to idle, determine the busy degree of ongoing frequency by the free time of frequency, industrial computer processing module [03] is carried out cutting according to busy degree and is reported content.
6. the self-service aeronautical meteorology broadcasting system of the busy degree of a kind of self adaptation according to claim 1, it is characterized in that, industrial computer processing module [03] is broadcast by the PTT functional realiey voice document of FPGA control module [02] control VHF communication module [01].
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| CN201410589278.7A CN104363068A (en) | 2014-10-28 | 2014-10-28 | Self-help aeronautical meteorology broadcasting system capable of automatically adapting to busyness |
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| CN201410589278.7A CN104363068A (en) | 2014-10-28 | 2014-10-28 | Self-help aeronautical meteorology broadcasting system capable of automatically adapting to busyness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388802A (en) * | 2015-10-10 | 2016-03-09 | 陕西千山航空电子有限责任公司 | Airport integrated communication system |
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| CN101425977A (en) * | 2008-11-25 | 2009-05-06 | 北京航空航天大学 | Air-ground data communication control system |
| CN101609145A (en) * | 2009-07-29 | 2009-12-23 | 中国气象科学研究院 | The all-lightning positioning system that very low frequency (VLF) combines with very high frequency(VHF) |
| CN102801807A (en) * | 2012-08-13 | 2012-11-28 | 国电南京自动化股份有限公司 | Dual-mode radio miniature meteorological station system based on GPRS (General Packet Radio Service) and satellite communication |
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2014
- 2014-10-28 CN CN201410589278.7A patent/CN104363068A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425977A (en) * | 2008-11-25 | 2009-05-06 | 北京航空航天大学 | Air-ground data communication control system |
| CN101609145A (en) * | 2009-07-29 | 2009-12-23 | 中国气象科学研究院 | The all-lightning positioning system that very low frequency (VLF) combines with very high frequency(VHF) |
| CN102801807A (en) * | 2012-08-13 | 2012-11-28 | 国电南京自动化股份有限公司 | Dual-mode radio miniature meteorological station system based on GPRS (General Packet Radio Service) and satellite communication |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105388802A (en) * | 2015-10-10 | 2016-03-09 | 陕西千山航空电子有限责任公司 | Airport integrated communication system |
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Application publication date: 20150218 |