CN105390103A - Liquid crystal display systems of aeronautical instrument - Google Patents
Liquid crystal display systems of aeronautical instrument Download PDFInfo
- Publication number
- CN105390103A CN105390103A CN201510756938.0A CN201510756938A CN105390103A CN 105390103 A CN105390103 A CN 105390103A CN 201510756938 A CN201510756938 A CN 201510756938A CN 105390103 A CN105390103 A CN 105390103A
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- module
- liquid crystal
- crystal display
- data transmission
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000004886 process control Methods 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D43/00—Arrangements or adaptations of instruments
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Disclosed in the invention is a liquid crystal display systems of an aeronautical instrument. The system is composed of a system main control module, a liquid crystal display module, a data transmission module, and a power supply module. To be specific, the system main control module is used for carrying out data analyses and processing and controlling displaying of the liquid crystal display module; the liquid crystal display module is used for displaying graphic data of an aeronautical instrument system; the data transmission module is used for receiving and transmitting data and providing data support for the system; and the power supply module is used for converting an external power supply into a power supply needed by the system. The system main control module is connected with the liquid crystal display module and the data transmission module; the power supply module is connected with the system main control module, the liquid crystal display module, and the data transmission module; and the data transmission module is connected with an aviation bus interface. According to the invention, information display integration, simplification, digitalization and intelligence inside a pilot's compartment are realized; and objectives of improving accuracy and stability of the instrument, reducing the size, weight, and power consumption, and lowering the cost can be achieved.
Description
Technical field
The present invention relates to instrument technical field, be specifically related to a kind of instrument liquid crystal display systems.
Background technology
Along with the high speed development of electronic technology and lcd technology, the performance of aircraft also improves constantly, and the instrument indicator quantity on aircraft increases sharply, on some machine even nearly hundred kinds; So not only make flying panel seem crowded to capacity, too increase driver and search for measured parameter indicating value and comprehensive parameters, carry out the difficulty that judges, sometimes cause manipulation not in time aircraft accident to occur even thus.Therefore, instrument is by the future development of traditional mechanical dial plate towards virtual liquid crystal dial plate, and the information that virtual liquid crystal instrument is shown is more abundant, accurately, and volume obviously reduces, cost and failure rate reduce greatly.Instrument is through comprehensive, robotization. not only decreased number, and make interpretation convenient, the arrangement on instrument panel is also more reasonable, and utilization factor is also higher.
The task main in instrument of display system is synthesis display and decision-making, and it is the control treatment center of whole system; Different control overflow is had, the function such as information processing, synthesis display, threat warning, resource management, Comprehensive Control of its energy completion system under different occasions.Simultaneously due to the asynchronism of these events, require system energy executed in parallel.Current real-time display system employing take DSP+FPGA as the control program of core, liquid crystal display control module adopts programmable logic device (PLD) to realize the coding of RGB digital signal, carry out exchanges data by port display buffer and main frame, data DSP being write video memory convert RGB numeral or the simulative display signal of display needs to; And based on DSP display system due to development difficulty high, not only adaptive surface is narrow, and cannot realize software-hardware synergism exploitation.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, there is provided one that driving cabin internal information is shown integrated, simplification, digitizing, intellectuality, improve the accuracy of instrument, stability simultaneously, reduce the instrument liquid crystal display systems of volume, weight reduction, reduction power consumption and cost.
To achieve these goals, the technical solution used in the present invention is:
Described instrument liquid crystal display systems, comprising:
Main system control module, for the parsing of data, process control the display of LCD MODULE;
LCD MODULE, for showing the graph data of instrument system in real time;
Data transmission module, for transceiving data, is systems with data support;
Power module, for converting external power source to needed for system power supply;
Described main system control module is connected with described LCD MODULE and data transmission module respectively; Described power module is connected with described main system control module, LCD MODULE and data transmission module respectively; Described data transmission module is connected with Avionics data bus interface.
Described main system control module is made up of master chip IMAX51, NANDFLASH internal memory, DDRAM, display interface, expansion interface.
Described LCD MODULE comprises high-definition liquid crystal screen and driving circuit, and described driving circuit comprises RGB driving circuit and backlight control circuit.
Described data transmission module connects the FPDP of Avionics data bus interface and main system control module.
Described instrument liquid crystal display systems is the instrument liquid crystal display systems adopting Vxworks real time operating system formula embedded system and figure and API application software.
Described instrument liquid crystal display systems, the technical scheme of employing, has the following advantages:
First, described instrument liquid crystal display systems, main system control module adopts master chip IMAX51, NANDFLASH internal memory, DDRAM, display interface, expansion interface; Master chip IMAX51 can drive high performance process kernel and abundant figure display performance with lower power consumption, main system control module take ARMCortexA8 as core architecture, work dominant frequency can reach 1GHz, be integrated with almost complete set multimedia hardware accelerator module, NANDFLASH adopts SamsungK9F4G08U0M simultaneously, and its capacity is 512M, running memory is 512MDDR, frequency of operation is 400MHz, and not only power consumption is little, and work real-time and stability high;
Secondly, described instrument liquid crystal display systems, main system control module adopts the display system based on VxWorks embedded OS and ARM microcontroller framework, the advantage that the reliability and being convenient to making full use of the hard real-time of VxWorks and stability and ARM controller is developed, guarantee display system can well meet specific environment under requirement of real time; Main system control module based on VxWorks embedded OS can realize the hardware-accelerated of figure, realizes the display of three-dimensional picture, and greatly improves X-Y scheme display efficiency and quality;
Again, the high-definition liquid crystal screen figure display of LCD MODULE is clear, and brightness is high;
Finally, described instrument liquid crystal display systems, each hardware of employing, overall volume is little, lightweight, low in energy consumption, working temperature is wide in range.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of instrument liquid crystal display systems of the present invention;
Embodiment
As shown in Figure 1, described instrument liquid crystal display systems, comprises main system control module, LCD MODULE, data transmission module and power module; Main system control module is connected with LCD MODULE and data transmission module respectively; Power module is connected with main system control module, LCD MODULE and data transmission module respectively; Data transmission module is separately connected with Avionics data bus interface.
Main system control module is made up of master chip IMAX51, NANDFLASH internal memory, DDRAM, display interface, expansion interface, JTAG and UART, main system control module is the core of whole system, is responsible for the parsing of data, process control the display of LCD MODULE; Chip I MX51, high performance process kernel and abundant figure display performance can be driven with lower power consumption, it take ARMCortexA8 as core architecture, working, dominant frequency is the highest can reach 1GHz, be integrated with almost complete set multimedia hardware accelerator module, NANDFLASH adopts SamsungK9F4G08U0M simultaneously, and its capacity is 512M, running memory is 512MDDR, and frequency of operation is 400MHz.
LCD MODULE comprises high-definition liquid crystal screen and driving circuit, the maximum support 1280 × 1280 of high-definition liquid crystal screen resolution, and driving circuit comprises RGB driving circuit and backlight control circuit, is responsible for the display and the brilliance control that drive liquid crystal display.
Data transmission module connects the FPDP of Avionics data bus interface and main system control module, play transceiving data effect, Avionics data bus level conversion is become TTL serial data by data transmission module, the data input pin of serial data output terminal connected system main control module, is systems with data support.
Power module is responsible for external power source being converted to power supply needed for described instrument liquid crystal display systems.
Claims (4)
1. an instrument liquid crystal display systems, is characterized in that: comprising:
Main system control module, for the parsing of data, process control the display of LCD MODULE;
LCD MODULE, for showing the graph data of instrument system in real time;
Data transmission module, for transceiving data, is systems with data support, which is provided with some USB interface;
Power module, for converting external power source to needed for system power supply;
Described main system control module is connected with described LCD MODULE and data transmission module respectively; Described power module is connected with described main system control module, LCD MODULE and data transmission module respectively; Described data transmission module is connected with Avionics data bus interface.
2. according to instrument liquid crystal display systems according to claim 1, it is characterized in that: described main system control module is made up of master chip IMAX51, NANDFLASH internal memory, DDRAM, display interface, expansion interface.
3. according to the instrument liquid crystal display systems described in claim 1 or 2, it is characterized in that: described LCD MODULE comprises high-definition liquid crystal screen and driving circuit, and described driving circuit comprises RGB driving circuit and backlight control circuit.
4. according to instrument liquid crystal display systems according to claim 3, it is characterized in that: described data transmission module connects the FPDP of Avionics data bus interface and main system control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510756938.0A CN105390103A (en) | 2015-11-09 | 2015-11-09 | Liquid crystal display systems of aeronautical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510756938.0A CN105390103A (en) | 2015-11-09 | 2015-11-09 | Liquid crystal display systems of aeronautical instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105390103A true CN105390103A (en) | 2016-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510756938.0A Pending CN105390103A (en) | 2015-11-09 | 2015-11-09 | Liquid crystal display systems of aeronautical instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105390103A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526967A (en) * | 2016-12-14 | 2017-03-22 | 苏州长风航空电子有限公司 | Train curved liquid crystal instrument system applied to rail transit and screen display method of train curved liquid crystal instrument system |
| CN110531978A (en) * | 2019-07-11 | 2019-12-03 | 北京机电工程研究所 | A kind of cockpit display system |
-
2015
- 2015-11-09 CN CN201510756938.0A patent/CN105390103A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526967A (en) * | 2016-12-14 | 2017-03-22 | 苏州长风航空电子有限公司 | Train curved liquid crystal instrument system applied to rail transit and screen display method of train curved liquid crystal instrument system |
| CN110531978A (en) * | 2019-07-11 | 2019-12-03 | 北京机电工程研究所 | A kind of cockpit display system |
| CN110531978B (en) * | 2019-07-11 | 2023-11-03 | 北京机电工程研究所 | Cabin display system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160309 |