CN103472798A - Distributed type aircraft monitoring system - Google Patents
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- CN103472798A CN103472798A CN2013104140054A CN201310414005A CN103472798A CN 103472798 A CN103472798 A CN 103472798A CN 2013104140054 A CN2013104140054 A CN 2013104140054A CN 201310414005 A CN201310414005 A CN 201310414005A CN 103472798 A CN103472798 A CN 103472798A
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Abstract
The invention discloses a distributed type aircraft monitoring system of an electric testing type monitoring control system. The distributed type aircraft monitoring system comprises an optical fiber channel data interface card, a speed sensor, a temperature sensor and a bus testing device, and the bus testing device, the speed sensor and the temperature sensor are all connected with the optical fiber channel data interface card. According to the distributed type aircraft monitoring system, distributed type management on aviation electronic devices can be achieved, and the aircraft integration capacity is improved.
Description
Technical field
The present invention relates to control or regulating system global design and applied technical field, is that the formula supervisor control is tested in a kind of electric-examination specifically.
Background technology
From last century end, the tide of globalization have swepts the globe, and Industry globalization drives the globalization of trade, resource, personnel transfer, military affairs, and this burst of globalization trend drives the aircraft industry and advance with surprising rapidity.
The fast development of aircraft industry, mainly have benefited from the develop rapidly of the avionics same period.Avionics system is the summation of all electronic systems on aircraft, and it is aircraft " brain ", and it has carried most tasks such as communication, navigation, display management, electronic countermeasure of aircraft.Along with the raising of aircraft flying power, enter the expansion in spatial domain, the diversity of executing the task, required air environment increases, and the task items of air environment increases, and task amount strengthens, and this just is badly in need of the avionics system synthesization.Synthesization is core and the soul of avionics system development, and synthesization can be compressed the volume and weight of avionics system, alleviates flight control personnel's work load, improves the reliability of system, reduces Life Cycle Cost etc.This comprehensively be not limited to unit within, maximally utilising machine external information resource will be a distinguishing feature from now on.
This avionics system that is divided into the synthesization of basic point with function, the functional areas that relate to are more, thinner, between each functional areas or subfunction district, all link.All exist the switching requirement of mass data between its each inside, functional areas and functional areas, it has high requirement to transmission bandwidth, transmission reliability and transmission delay, and common telecommunication can not meet the demand of avionics system data communication.
Optical fiber communication, be to utilize the fiber optic transmission signal, with a kind of communication mode of realizing that information is transmitted.A pair of single mode optical fibre can be opened 35000 phones simultaneously, with telecommunication, compare there is transmission frequency bandwidth, loss is low, loss evenly and not is subject to the impact of temperature, antijamming capability is strong, fidelity is high, the signal security degree is high, reliable operation degree high, the host-host protocol of the high speed serialization ability that it adopts, have high reliability, high bandwidth, characteristics that real-time is high.Along with the development of the all-wave window optical fiber of the progress of optical fiber technology, particularly anhydrous peak, in the wide optical frequency scope from 1280nm to 1625nm, can realize low-loss, low dispersion transmission, transmission capacity is hundred times, several thousand times of even growths of up to ten thousand times.That simultaneously optical fiber communication adopts is point-to-point, star, chain, loop network topological structure, and intermediate equipment is few, does not need to carry out complicated protocol conversion.Just so, optical fiber telecommunications system becomes the major flow communication system of avionics system.
Optical fiber telecommunications system not only comprises basic hardware system; also comprise monitoring management system; its major function is that the various airborne equipments to forming fibre-optic transmission system (FOTS) carry out the monitoring of performance and duty; can auto-alarming while being broken down and processed, the protection exchanging system is carried out automatically and controlled.It can also realize real-time demonstration and the storage to data simultaneously, and the data of storage are carried out to the instant analysis processing.Monitoring management system not only can receive the optical-fibre channel data that optical transmitter and receiver sends, can also be directly and another Optical Network Terminal interconnected.
The operation of optical fiber telecommunications system and monitoring function are mainly to realize by the optical-fibre channel data interface card.The systemic-function of optical-fibre channel data interface card and circuit logic more complicated, need more configurable logic block.This configurability is mainly realized by field programmable gate array (FPGA), the design engineer utilizes the resource on FPGA many systemic-functions to be configured on the logical circuit of device, circuit quantity on the reduction system circuit board, the design engineer can also utilize the configurable characteristic of FPGA to change logic to increase or remove function, fix-up logic leak or improve performance.
The airborne equipment of avionics system, have multiple interfaces and air communications bus, and logical design and block configuration by FPGA can realize the support to various airborne equipments.Fibre Optical Communication Technology is at present in the aviation electronics field, mainly also the connection of carrying out between individual equipment, this reason just, aircraft is controlled personnel and is adopted the watchdog routine on computing machine to control and monitor single airborne equipment by serial ports, test completes, then other equipment is tested one by one.This test mode causes the time point of test of each equipment different, also can't carry out unified analysis, can't be well understood to the air environment of aircraft in a concrete time point operation conditions, the data that more can't obtain at this time point equipment are unified to be analyzed.
Summary of the invention
In order to overcome prior art when each equipment of avionics system carries out control and measuring, adopt individual equipment to test one by one, efficiency is low, test data does not have simultaneity, can't be unified to analyze to data, this test macro does not meet the technological deficiency of the growth requirement of avionics system synthesization yet, the invention provides a kind of distributed aircraft supervisory system.
For solving above-mentioned technical matters, the present invention by the following technical solutions:
Distributed aircraft supervisory system, comprise optical-fibre channel data interface card, speed pickup, temperature sensor, bus test device, and bus test device, speed pickup, temperature sensor all are connected with the optical-fibre channel data interface card.
When the present invention is come into operation, the first step, inspection, commissioning device: check that the optical-fibre channel data interface card has or not hardware anomalies, check whether normal the hardware of speed pickup, temperature sensor, bus test device and optical-fibre channel data interface card is connected, if there is extremely, corrected.Second step adds electric test equipment: start power supply, confirm that whether the duty of each equipment of distributed aircraft supervisory system is normal, just come into operation after equipment is normal; The 3rd step, carry out monitor task, and the data that speed pickup, temperature sensor and bus test device collect enter optical fiber channel data interface card by optical fiber transmission, and the optical-fibre channel data interface card is processed and monitored these data.
Principle of work of the present invention is, by fiber optic network, avionic each equipment connection got up, and carries out the management of overall formula, thereby becomes a unified integral body.It is the collection resource of sharing fiber channel data interface card better, and to each electronic equipment parallel processing multi-parameters sampling task of avionics system, individual equipment connects the operation of other parts of the system that do not affect that goes wrong.
With prior art, avionic device is being monitored, during test, employing sets up the standby technical scheme of test one by one and compares, the present invention adopts fiber optic network that each avionic device is coupled together and forms distributed supervisory system, monitoring when being conducive to realize a plurality of equipment, the monitor channel of each equipment is independent mutually, be independent of each other, this is monitored than existing individual equipment, no matter be efficiency, or on data are synchronous, positive meaning is arranged, can also be by the data analysis of each same time of equipment and data mining, obtain valuable information, this mode meets the requirement of avionics system synthesization.
For further optimization, improve the quantity of the access device of optical-fibre channel data interface card, as preferably, the bus test device comprises at least one in RS422 bus test device, ARINC429 bus test device, GJB-289 bus test device, and the bus test device is connected by optical fiber with the optical-fibre channel data interface card.
It is more than the further improvement to distributed aircraft Monitor Equipment access capability.Avionic most equipment adopts RS422 bus, ARINC429 bus, GJB-289 bus, the optical-fibre channel data interface card is supported these bus structure, these equipment just can communicate by these buses and optical-fibre channel data interface card, thereby realize it is monitored.
For further optimization, improve reasonable structure and the configurable ability of optical-fibre channel data interface card, as preferentially, the optical-fibre channel data interface card comprises the first reference clock chip, the second reference clock chip, central processing unit, optical transceiver, the FPGA field programmable gate array, the Flash storer, data cache device SRAM, the first reference clock chip, the second reference clock chip all is connected with central processing unit, the bus test device, speed pickup, temperature sensor all is connected with optical transceiver, optical transceiver, the Flash storer, data cache device SRAM all is connected with the FPGA field programmable gate array with central processing unit.
It is more than the further improvement to the whole configurable ability of distributed aircraft supervisory system.Adopt the Flash storer to carry out the stored configuration program, system starts fast, data security, reliable; Adopt data cache device SRAM to provide data cache for FPGA, be conducive to improve the ability of fibre-optic transmission system (FOTS) supervising device deal with data, to adapt to more high speed, more jumbo data transmission load; Adopt the FPGA field programmable gate array can be by the circuit logic of configuration FPGA field programmable gate array, increase or remove function, simultaneously fix-up logic leak or improve performance.The first reference clock chip, the second reference clock chip provide asynchronous clock for processor, adjust voluntarily clock frequency according to the working load of the optical-fibre channel data interface card of configurable FPGA, thereby adjust the frequency of operation of central processing unit, central processing unit also carries chip execution management function to FPGA field programmable gate array and other plates.Adopt optical transceiver to realize mutual conversion and the transmitting-receiving of light signal and electric signal, thus the seamless switching of the optical fiber telecommunications system of realization and electrical communication system.
Those skilled in the art can freely select according to the requirement of practice of construction environment and workpiece the parameter of assembly.
For further optimization, improve the circuit logic allocative abilities of PGA field programmable gate array, realize better systemic-function and circuit logic, as preferentially, the FPGA field programmable gate array is Xilinx XC5VLX110T.
The FPGA field programmable gate array, performance and the function of owned input-output unit able to programme, configurable logic block, digital dock administration module, embedded block RAM, interconnection resource, the embedded functional unit of bottom, embedded special-purpose each module of stone directly depend on its acp chip.
It is more than the further improvement to the comprehensive configurable ability of distributed aircraft supervisory system.Xilinx is the technology enterprise in advance of FPGA field programmable gate array industry, the Virtex-5 family chip is first 65nm FPGA product of the whole world that Xilinx company releases, use 1.0V tri-gate oxidation layer process, the ExpressFabric framework of exploitation of innovation is also realized ultimate Integrated.XC5VLX110T belongs to the LXT platform that the high performance logic to low-power consumption serial i/O is optimized.
Those skilled in the art can freely select the model of FPGA field programmable gate array according to the actual requirements.
For further optimization, improve the communication capacity of distributed aircraft supervisory system and computing machine, the optical-fibre channel data processing module also comprises the PCI-EXPRESS interface, the PCI-EXPRESS interface connects the FPGA field programmable gate array.
It is more than the further improvement to fibre-optic transmission system (FOTS) monitoring dress and computer data exchange capacity.PCI Express bus is point-to-point high-speed serial bus, and each PCI Express equipment has oneself independently data connection, has guaranteed the monopoly of passage, avoids the interference of other equipment.PCI Express bus is supported the transmitted in both directions pattern, PCI Express bus every to data transfer bandwidth up to 4GB/s, the bidirectional data transfers bandwidth has more than 8GB/s.
For further optimization, improve the managerial ability of distributed aircraft supervisory system to each module of system, as preferably, central processing unit is Cortex-M3 core ARM microprocessor LPC1769.
It is more than the further improvement to the system management ability of distributed aircraft supervisory system.Duty and the buffer queue scheduling of central processing unit for controlling fpga chip, manage the FLASH configuring chip.Cortex-M3 core ARM microprocessor LPC1769, be the embedded market of Industry-oriented low-power consumption chip it there is the JTAG interface, support the JTAG debugging, special instruction tracing unit is provided.
Those skilled in the art can freely select the model of central processing unit according to the actual requirements
For further optimization, improve light signal conversion and the transmitting-receiving ability of distributed aircraft supervisory system, as preferentially, the model of optical transceiver is FTRJ-8519-1-2.5.
More than to the data-signal conversion of distributed aircraft supervisory system and the further improvement of transmitting-receiving ability.Adopt the FTRJ-8519-1-2.5 of Finisar company optical transceiver, it adopts the 850nm laser instrument, and the 2.125Gbps transfer rate is provided, and has good shake and EMI characteristic.
Those skilled in the art are the model of free selective light transceiver according to the actual requirements.
Compared with prior art, the invention has the beneficial effects as follows:
1. with prior art, avionic device is being monitored, during test, employing sets up the standby technical scheme of test one by one and compares, the present invention adopts fiber optic network that each avionic device is coupled together and forms distributed supervisory system, monitoring when being conducive to realize a plurality of equipment, the monitor channel of each equipment is independent mutually, be independent of each other, this is monitored than existing individual equipment, no matter be efficiency, or on data are synchronous, positive meaning is arranged, can also be by the data analysis of each same time of equipment and data mining, obtain valuable information, this mode meets the requirement of avionics system synthesization.
2. the present invention adopts the processor of ARM framework to manage the FPGA field programmable gate array, the Flash storer is stored the configurator of FPGA field programmable gate array, data cache module is divided into and receives buffer memory and send the needs that buffer memory adapts to the data double-way transmission, it is powerful that it has serviceability, configurable ability is strong, good operating stability, reliability high.
The invention solves when monitoring and emulation fiber optic network, employing sets up for testing efficiency is low one by one, test data does not have the technical matters of too many practical value, it adopts fiber optic network that each avionic device is coupled together and forms distributed supervisory system, monitoring when being conducive to realize a plurality of equipment, the monitor channel of each equipment is independent mutually, be independent of each other, also help data analysis and the data mining that will collect, obtain valuable information, there is good industrial value.
The accompanying drawing explanation
In order to be illustrated more clearly in embodiments of the invention, below will be briefly described describing the required accompanying drawing of using in the embodiment of the present invention.Apparent, the accompanying drawing in the following describes is only some embodiment that put down in writing in the present invention, for a person skilled in the art, in the situation that do not pay creative work, can also, according to following accompanying drawing, obtain other accompanying drawing.
Fig. 1 is structural representation of the present invention.
Embodiment
In order to make those skilled in the art understand better the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out to clear, complete description.Apparent, embodiment described below is only the part in the embodiment of the present invention, rather than all.Embodiment based on the present invention record, those skilled in the art are not in the situation that pay other all embodiment that creative work obtains, all in the scope of protection of the invention.
Embodiment mono-:
As shown in Figure 1, the present invention, comprise optical-fibre channel data interface card, speed pickup, temperature sensor, bus test device, and bus test device, speed pickup, temperature sensor all are connected with the optical-fibre channel data interface card.
Those skilled in the art can freely select according to the requirement of practice of construction environment and workpiece the parameter of assembly.
Embodiment bis-:
In order to improve the GPS communication capacity of distributed aircraft supervisory system, the present embodiment improves further on the basis of embodiment mono-, the bus test device of the present embodiment comprises at least one in RS422 bus test device, ARINC429 bus test device, GJB-289 bus test device, and the bus test device is connected by optical fiber with the optical-fibre channel data interface card.
Embodiment tri-:
In order to improve the GPS communication capacity of distributed aircraft supervisory system, the present embodiment improves further on the basis of any one embodiment of embodiment mono-～bis-, the optical-fibre channel data interface card of the present embodiment comprises the first reference clock chip, the second reference clock chip, central processing unit, optical transceiver, the FPGA field programmable gate array, the Flash storer, data cache device SRAM, the first reference clock chip, the second reference clock chip all is connected with central processing unit, the bus test device, speed pickup, temperature sensor all is connected with optical transceiver, optical transceiver, the Flash storer, data cache device SRAM all is connected with the FPGA field programmable gate array with central processing unit.
Embodiment tetra-:
In order to improve the comprehensive configurable ability of distributed aircraft supervisory system, the present embodiment improves further on the basis of embodiment tri-, and the FPGA field programmable gate array of the present embodiment is Xilinx XC5VLX110T.
Those skilled in the art can freely select the model of FPGA field programmable gate array according to the actual requirements.
Embodiment five:
For control dress and the computer data exchange capacity that improves distributed aircraft supervisory system, the present embodiment improves further on the basis of any one embodiment of embodiment tri-～tetra-, the optical-fibre channel data interface card of the present embodiment also comprises the PCI-EXPRESS interface, and the PCI-EXPRESS interface connects the FPGA field programmable gate array.
Embodiment six:
In order to improve the system management ability of distributed aircraft supervisory system, the present embodiment improves further on the basis of any one embodiment of embodiment tri-～five, and the central processing unit of the present embodiment is Cortex-M3 core ARM microprocessor LPC1769.
Those skilled in the art can freely select the model of central processing unit according to the actual requirements.
Embodiment seven:
In order to improve data-signal conversion and the transmitting-receiving ability of distributed aircraft supervisory system, the present embodiment improves further on the basis of any one embodiment of embodiment tri-～six, and the model of the optical transceiver of the present embodiment is FTRJ-8519-1-2.5.
Those skilled in the art are the model of free selective light transceiver according to the actual requirements.
Just can realize this invention as mentioned above.
Claims (7)
1. distributed aircraft supervisory system, it is characterized in that: comprise optical-fibre channel data interface card, speed pickup, temperature sensor, bus test device, described bus test device, speed pickup, temperature sensor all are connected with the optical-fibre channel data interface card.
2. distributed aircraft supervisory system according to claim 1, it is characterized in that: described bus test device comprises at least one in RS422 bus test device, ARINC429 bus test device, GJB-289 bus test device, and the bus test device is connected by optical fiber with the optical-fibre channel data interface card.
3. distributed aircraft supervisory system according to claim 1, it is characterized in that: described optical-fibre channel data interface card comprises the first reference clock chip, the second reference clock chip, central processing unit, optical transceiver, the FPGA field programmable gate array, the Flash storer, data cache device SRAM, described the first reference clock chip, the second reference clock chip all is connected with central processing unit, the bus test device, speed pickup, temperature sensor all is connected with optical transceiver, described optical transceiver, the Flash storer, data cache device SRAM all is connected with the FPGA field programmable gate array with central processing unit.
4. distributed aircraft supervisory system according to claim 3, it is characterized in that: described FPGA field programmable gate array is Xilinx XC5VLX110T.
5. distributed aircraft supervisory system according to claim 3, it is characterized in that: described optical-fibre channel data interface card also comprises the PCI-EXPRESS interface, described PCI-EXPRESS interface connects the FPGA field programmable gate array.
6. distributed aircraft supervisory system according to claim 3, it is characterized in that: described central processing unit is Cortex-M3 core ARM microprocessor LPC1769.
7. distributed aircraft supervisory system according to claim 3, it is characterized in that: the model of described optical transceiver is FTRJ-8519-1-2.5.
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Application publication date: 20131225 |