CN105334780B - A kind of pingxian ARM controller - Google Patents
A kind of pingxian ARM controller Download PDFInfo
- Publication number
- CN105334780B CN105334780B CN201510887922.3A CN201510887922A CN105334780B CN 105334780 B CN105334780 B CN 105334780B CN 201510887922 A CN201510887922 A CN 201510887922A CN 105334780 B CN105334780 B CN 105334780B
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- interface
- signal
- pingxian
- processing module
- signal processing
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
Abstract
The present invention relates to a kind of pingxian ARM controller, including Signal interface module and signal processing module, Signal interface module includes collection signal input interface and control signal output interface, collection signal input interface includes GPIO interface, A/D translation interfaces and SPI interface, GPIO interface, A/D translation interfaces, SPI interface output connection signal processing module, signal processing module output connection control signal output interface.The controller can simplify whole control circuit, can only be achieved effective control, occupied little space using a controller, and input hardware cost is small, and system integration uniformity is good, meets the small form factor requirements of airborne equipment；Moreover, single controller can largely simplify the complexity being in communication with each other, the entanglement of control system is less prone to, is conducive to effective display of pingxian.In addition, this can facilitate management software to integrate using single controller, so that software cost be greatly lowered.
Description
Technical field
The present invention relates to a kind of pingxian ARM controller, belong to pingxian control field.
Background technology
In the specific environment of airborne equipment, pingxian internal system there are multiple interfaces signal, it is necessary to these signals into
Row classification is handled, and realizes the multiple functions of pingxian control.The pingxian that civil aircraft uses at present is more using at different processor
Difference in functionality is managed, or multi circuit board realizes multiplex roles function, general a processor or circuit board can only have a kind of interface, but
It is that a variety of controls are often related in pingxian control, this just needs many processors or circuit boards, but this is not only accounted for
With very big space, and need the cost that puts into very big, also, do not applied to for the small form factor requirements of airborne equipment；It is most heavy
Want, due to the complexity being in communication with each other between multiple processors, it is easy to control system entanglement occur in control, cause
Control failure, is unfavorable for effective display of pingxian.
The content of the invention
The object of the present invention is to provide a kind of pingxian ARM controller, to solve current multiprocessor control out in the presence of compared with
The problem of more defects.
To achieve the above object, the solution of the present invention includes a kind of pingxian ARM controller, including Signal interface module and letter
Number processing module, the Signal interface module include collection signal input interface and the control for exporting image source brightness control signal
Signal output interface processed, the first GPIO that the collection signal input interface includes being used to receive brightness regulation control signal connect
Mouthful, the A/D translation interfaces for receiving environment brightness signal and the SPI interface for receiving image source luminance parameter, described the
One GPIO interface, A/D translation interfaces, SPI interface output connect the signal processing module, and the signal processing module output connects
Connect the control signal output interface.
The Signal interface module connects the signal processing module, first GPIO interface, A/D conversions by bus
Interface, SPI interface and control signal output interface are all connected in the bus.
The collection signal input interface further includes the second GPIO interface for reception system fault-signal, and described second
GPIO interface output connects the signal processing module.
The control signal output interface is the PWM interfaces for exporting pwm control signal.
The ARM controller further includes ARINC429 bus transceivers and external storage controller, and the ARINC429 is total
Line transceiver is communicated to connect by the external storage controller and the signal processing module.
The input terminal of the ARINC429 bus transceivers is connected with signal input line road and signal output circuit, outside string
Row bus data input to the ARINC429 bus transceivers by the signal input line road, and the signal processing module is by phase
The status information answered is exported by the ARINC429 bus transceivers and by the signal output circuit.
String is equipped with an ARINC429 bus driver on the signal output circuit.
The brightness regulation control signal is input to first GPIO interface by an optocoupler.
Pingxian ARM controller provided by the invention is single controller, is provided with a variety of input signal interfaces, can
Realize multiple functions at the same time, which can simplify whole control circuit, and effectively control only can be achieved using a controller
System, occupies little space, and input hardware cost is small, and implementation is easy, and system integration uniformity is good, meets the small-sized of airborne equipment
Change and require；Moreover, single controller can largely simplify the complexity being in communication with each other, the mistake of control system is less prone to
Disorderly, effective display of pingxian is conducive to.In addition, this can facilitate management software to integrate using single controller, so that significantly
Reduce software cost.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram of pingxian ARM controller；
Fig. 2 is flat display brightness control flow chart；
Fig. 3 is that flow chart is realized in system bus communication；
Fig. 4 is that system monitoring function realizes flow chart.
Embodiment
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Pingxian ARM controller as shown in Figure 1, in the present embodiment, the ARM controller are a ARM7 chips
(LPC2294HBD144/01), the chip have two-way spi bus interface, 10,8 tunnel A/D converter, 6 road signal PWM output,
112 general purpose I/O (GPIO) interfaces.Input discrete magnitude signal have 11 tunnels, by after light-coupled isolation access ARM GPIO pins, 5
Road analog quantity is directly accessed the A/D translation interfaces of ARM, and 1 tunnel of ARINC429 buses is received to be accessed by transceiver HI-3584 chips
ARM data/address bus.1 road pwm signal output of ARM in house softwares control, 1 road ARINC429 buses.By being used in ARM7 chips
The software section of data processing is known as signal processing module, and signal processing module pair is completed by implementing corresponding software program
The function of answering.
Spi bus interface, A/D translation interfaces, PWM outputs, general purpose I/O (GPIO) interface export and are connected to a bus
On, bus connection signal processing module.
Above-mentioned each interface is equivalent to the pretreatment stage before process chip is inputed to, discrete magnitude, analog quantity, bus
Data after inputting pretreatment by accessing process chip；Wherein, discrete magnitude signal includes brightness adjustment approach signal, manual brightness
Regulating command, system module fault-signal；Analog quantity includes environmental light brightness analog quantity；Bus data includes ARINC429 buses
Data and spi bus data, ARINC429 bus datas, which include, to be received peripheral command, sends system monitoring status command,
Spi bus data, which include, reads image source storage luminance parameter.
Specially：Brightness adjustment approach signal and manual brightness regulating command discrete magnitude are linked into after being pre-processed by optocoupler
GPIO interface；System module malfunction discrete magnitude signal is directly accessed GPIO interface；Environmental light brightness signal mode analog quantity accesses
A/D translation interfaces；Image source brightness parameter value accesses SPI interface, 16 position datawires and processor of ARINC429 bus transceivers
16 bit data bus be connected realize bus data receive and dispatch.
The input terminal (one end being connected with external equipment) of ARINC429 bus transceivers is connected with signal input line road
With signal output circuit, ARINC429 bus transceivers receive external series bus data by signal input line road, are converted into
Sent after 16 bit parallel datas to signal processing module, signal processing module receives exterior 429 bus commands；Signal processing mould
Block reception system module failure state discrete amount, is sent fault status information to data cable, ARINC429 buses by software
Received 16 bit parallel data is converted into what serial data was set by string on signal output circuit and the circuit by transceiver
ARINC429 bus drivers are sent to external equipment.
Signal processing module receive judge after brightness adjustment approach signal be it is manual adjust or automatic adjustment, then root again
The duty of output pwm signal is calculated by different functions according to the environmental light brightness signal and image source luminance parameter received
Than realizing that flat display brightness is adjusted.Signal processing module is by receiving input brightness regulated signal and other relevant informations, output
Comprising the pwm signal that frequency is 1.33KHz different duties, for controlling image source brightness, realize that flat display brightness is adjusted.
Signal processing module is according to the brightness regulation control signal and environmental light brightness signal that receive and image source brightness
The information such as parameter are handled, and are exported corresponding pwm control signal and be controlled come the brightness to pingxian；Pass through ARINC429
Bus transceiver and SPI interface realize that bus data communicates；Reception system module failure state discrete amount, and by the status information
Sent by ARINC429 bus transceivers, realize the function of the condition monitoring of system.So pingxian ARM controller
It can realize the function of flat display brightness control, system bus communication and system monitoring.
To sum up, the course of work of the pingxian ARM controller is：
(1) the pingxian ARM controller is accessed after multiple interfaces Signal Pretreatment；
(2) the pingxian ARM controller output control signal, the control signal of output realize pingxian system communication, brightness tune
Section, system monitoring function.Wherein, Fig. 2 is flat display brightness control flow chart；Fig. 3 is that flow chart is realized in system bus communication；Fig. 4
It is that system monitoring function realizes flow chart.
The controller further includes the normal work that the auxiliary circuits such as clock, power supply are used for aiding in the controller.
In above-described embodiment, pingxian ARM controller is ARM7 process chips, as other embodiments, pingxian ARM controls
Device can also be the ARM process chips of other models.
In above-described embodiment, pingxian ARM controller has multiple GPIO interfaces, and which part GPIO interface is used for input system
Module failure signal, to realize system status monitoring function, this is a kind of embodiment of optimization, as other embodiments,
The pingxian ARM controller does not include the GPIO interface for being used for input system module failure signal, also means that pingxian ARM
Controller does not have the function of system status monitoring.
In above-described embodiment, pingxian ARM controller two parts have been divided into：Signaling interface part and signal processing part
Point, this is to more preferably illustrate the controller, and certainly, actual ARM controller is an entirety, interface section and process part
Cannot usually it separate or individually produce.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.The base of the present invention
This thinking is above-mentioned basic scheme, and for those of ordinary skill in the art, teaching, designs various changes according to the present invention
The model of shape, formula, parameter simultaneously need not spend creative work.It is right without departing from the principles and spirit of the present invention
The change, modification, replacement and modification that embodiment carries out are still fallen within protection scope of the present invention.
Claims (6)
1. a kind of pingxian ARM controller, it is characterised in that including Signal interface module and signal processing module, the signal connects
Mouth mold block includes collection signal input interface and the control signal output interface for exporting image source brightness control signal, described to adopt
Collection signal input interface is including being used to receive the first GPIO interface of brightness regulation control signal, believing for receiving environmental light brightness
Number A/D translation interfaces and SPI interface for receiving image source luminance parameter, first GPIO interface, A/D translation interfaces,
SPI interface output connects the signal processing module, and the signal processing module output connects the control signal output interface；
The ARM controller further includes ARINC429 bus transceivers and external storage controller, and the ARINC429 buses are received
Device is sent out to communicate to connect by the external storage controller and the signal processing module；
The input terminal of the ARINC429 bus transceivers is connected with signal input line road and signal output circuit, and external series are total
Line number inputs to the ARINC429 bus transceivers according to by the signal input line road, and the signal processing module will be corresponding
Status information is exported by the ARINC429 bus transceivers and by the signal output circuit；
The brightness regulation control signal includes brightness adjustment approach signal and manual brightness regulating command, signal processing module connect
Judge it is manual adjusting or automatic adjustment after receiving brightness adjustment approach signal, then believe further according to the environmental light brightness received
Number and image source luminance parameter by different functions calculate output PWM signals duty cycle, realize flat display brightness adjust；It is logical
Cross ARINC429 bus transceivers and SPI interface realizes that bus data communicates；Reception system module failure state discrete amount, and will
System module malfunction discrete magnitude is sent by ARINC429 bus transceivers, realizes the work(of the condition monitoring of system
Energy.
2. pingxian ARM controller according to claim 1, it is characterised in that the Signal interface module is connected by bus
The signal processing module is connect, first GPIO interface, A/D translation interfaces, SPI interface and control signal output interface connect
It is connected in the bus.
3. pingxian ARM controller according to claim 1, it is characterised in that the collection signal input interface further includes
For the second GPIO interface of reception system fault-signal, the second GPIO interface output connects the signal processing module.
4. pingxian ARM controller according to claim 1, it is characterised in that the control signal output interface be for
Export the PWM interfaces of pwm control signal.
5. pingxian ARM controller according to claim 1, it is characterised in that go here and there and be equipped with the signal output circuit
One ARINC429 bus driver.
6. pingxian ARM controller according to claim 1, it is characterised in that the brightness regulation control signal passes through one
A optocoupler is input to first GPIO interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510887922.3A CN105334780B (en) | 2015-12-05 | 2015-12-05 | A kind of pingxian ARM controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510887922.3A CN105334780B (en) | 2015-12-05 | 2015-12-05 | A kind of pingxian ARM controller |
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| Publication Number | Publication Date |
|---|---|
| CN105334780A CN105334780A (en) | 2016-02-17 |
| CN105334780B true CN105334780B (en) | 2018-05-11 |
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Citations (6)
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|---|---|---|---|---|
| EP2093603A1 (en) * | 2008-02-19 | 2009-08-26 | Saab Ab | Head-up display with brightness control |
| CN104071076A (en) * | 2014-07-17 | 2014-10-01 | 贵州大学 | Vehicle-mounted head-up display system and display method thereof |
| CN104299545A (en) * | 2013-11-28 | 2015-01-21 | 中国航空工业集团公司洛阳电光设备研究所 | Head-up display and character/video time-sharing overlapping display method thereof |
| CN104318911A (en) * | 2013-11-27 | 2015-01-28 | 中国航空工业集团公司洛阳电光设备研究所 | Head-up display luminance control circuit and method |
| CN104348851A (en) * | 2013-07-25 | 2015-02-11 | 惠州市华阳多媒体电子有限公司 | Interconnection system of head up display and mobile terminal |
| CN104691413A (en) * | 2013-12-06 | 2015-06-10 | 大连鑫永工业制造有限公司 | Automobile head-up display system |
Family Cites Families (1)
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| TWM308410U (en) * | 2006-08-30 | 2007-03-21 | Globaltop Technology Inc | Bluetooth global positioning system (GPS) device with overhead display |
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2015
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Patent Citations (6)
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|---|---|---|---|---|
| EP2093603A1 (en) * | 2008-02-19 | 2009-08-26 | Saab Ab | Head-up display with brightness control |
| CN104348851A (en) * | 2013-07-25 | 2015-02-11 | 惠州市华阳多媒体电子有限公司 | Interconnection system of head up display and mobile terminal |
| CN104318911A (en) * | 2013-11-27 | 2015-01-28 | 中国航空工业集团公司洛阳电光设备研究所 | Head-up display luminance control circuit and method |
| CN104299545A (en) * | 2013-11-28 | 2015-01-21 | 中国航空工业集团公司洛阳电光设备研究所 | Head-up display and character/video time-sharing overlapping display method thereof |
| CN104691413A (en) * | 2013-12-06 | 2015-06-10 | 大连鑫永工业制造有限公司 | Automobile head-up display system |
| CN104071076A (en) * | 2014-07-17 | 2014-10-01 | 贵州大学 | Vehicle-mounted head-up display system and display method thereof |
Non-Patent Citations (1)
| Title |
|---|
| LPC2292/2294 16/32-bit ARM microcontrollers;256 Kb ISP/IAP flash with CAN,10-bit ADC and external memory interface;NXP;《LPC2292/2294 16/32-bit ARM microcontrollers;256 Kb ISP/IAP flash with CAN,10-bit ADC and external memory interface》;20110608;第4、18页 * |
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| CN105334780A (en) | 2016-02-17 |
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