CN205540696U - Take display of self test function - Google Patents
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- CN205540696U CN205540696U CN201620055113.6U CN201620055113U CN205540696U CN 205540696 U CN205540696 U CN 205540696U CN 201620055113 U CN201620055113 U CN 201620055113U CN 205540696 U CN205540696 U CN 205540696U
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Abstract
The utility model discloses a take display of self test function, include: the display module provides the video signal and the non - video signal that signify self operating condition, video detection module gathers and detects video signal, generates the video signal testing result, AD collection module gathers and detects non - video signal, generates non - video signal testing result, management module acquires video signal testing result and non - video signal testing result to report it in outside host computer, failure indication module acquires video signal testing result and non - video signal testing result to fault indication and fault locating carry out in view of the above, control module, the display mode of control display module, and video detection module and AD collection module's detection mode, outside test module gathers video signal and non - video signal and is used for outside test. The utility model discloses can not rely on the operating condition that the main frame can detect the display, realize the instant playback of trouble and pinpoint.
Description
Technical field
This utility model relates to signal detection field, particularly relates to the display of a kind of band self-checking function.
Background technology
The general integrated shared switching of military airborne indicator at present, video distribution, VGA with LVDS turn
Change, touch control, A/D conversion and the function such as interface is adaptive, but do not possess Autonomous test (BIT, Built in
Test) function, to detection display fault, it is necessary to connect main frame, thereby results in display event
The inconvenience of barrier detection.
Therefore, need badly a kind of do not rely on that main frame can realize fault detect there is self-inspection measurement of power
The display of energy is to solve the problems referred to above.
Utility model content
This utility model provides the display of a kind of band self-checking function, except integrated shared switching, video
The merits such as distribution, VGA Yu LVDS conversion, CPU module, touch control, A/D conversion and interface are adaptive
Outside energy, also there is self-checking function, be not required to connect main frame and can quickly detect the work of display
State, it is achieved the instant playback of fault be accurately positioned, for breakdown maintenance provide provide powerful support for.This practicality
Novel self-checking function is comprehensive, and testing result can be issued by Ethernet, and supports multiple Autonomous test
Pattern.
This utility model provides the display of a kind of band self-checking function, including: display module, it is provided that table
Levy video signal and the non-video signal of display module duty；Video detection module, with display module
It is connected, gathers and detect video signal, generate video signal detection result；AD acquisition module, with display
Module is connected, and gathers and detect non-video signal, generates non-video signal detecting result；Management module,
It is connected with video detection module and AD acquisition module, obtains video signal detection result and non-video signal
Testing result, and video signal detection result and non-video signal detecting result are reported in outside host computer；
Failure indication module, is connected with video detection module and AD acquisition module, obtains video signal detection knot
Fruit and non-video signal detecting result, and according to video signal detection result and non-video signal detecting result
Carry out indicating fault and fault location；Control module, adopts with display module, video detection module and AD
Collection module is connected, and controls the display state of display module, and video detection module and AD acquisition module
Detection pattern；External testing modules, is connected with display module, gathers video signal and non-video signal,
For video signal and non-video signal being tested in outside display.
Preferably, described video signal includes VGA1 signal, VGA2 signal, VGA3 signal, VGA4
Signal, VGA5 signal and LVDS signal；Described non-video signal includes: Value knobs resistance signal,
Relay output signal, the first running voltage signal and the second running voltage signal；Described video signal is examined
The video signal gathered according to surveying result and the first default detected rule, the first kind fault shape obtained
State and the first kind failure code corresponding with first kind malfunction；Described non-video signal detecting result bag
Include: according to the Value knobs resistance signal, relay output signal and the second default detected rule that gather
The Equations of The Second Kind malfunction obtained and the Equations of The Second Kind failure code corresponding with Equations of The Second Kind malfunction, according to adopting
First running voltage signal of collection and the second running voltage signal and the 3rd default detected rule obtain the
Three class malfunctions and the threeth class failure code corresponding with the 3rd class malfunction；
AD acquisition module collection also detects video detection module, management module and the work of AD acquisition module
Voltage signal, obtains running voltage testing result；Running voltage testing result is sent to manage module and
Failure indication module；Running voltage testing result is reported in outside host computer by management module；Described work
Voltage detecting result is according to video detection module, management module, the running voltage signal of AD acquisition module
And the 4th detected rule preset, the 4th class malfunction obtained and corresponding with the 4th class malfunction
4th class failure code.
Preferably, display module provides brightness pwm signal, first sensor output signal, the second sensing
Device output signal, USB1 data signal, USB2 data signal, USB1 voltage signal and USB2 electricity
Pressure signal；AD acquisition module collection also detects USB1 voltage signal and USB2 voltage signal, by USB1
Voltage signal testing result and USB2 voltage signal testing result are sent to manage module；Management module with
Display module and failure indication module are connected, according to the detection brightness pwm signal gathered, first sensor
Output signal and the second sensor output signal, obtain first kind testing result；By first kind testing result
It is sent to failure indication module and outside host computer；
Management module collection also detects USB1 data signal and USB2 data signal, generates USB1 data
Signal detecting result and USB2 detection of data signal result；And according to USB1 voltage signal testing result and
USB1 detection of data signal result obtains USB1 testing result, ties according to the detection of USB2 voltage signal
Fruit and USB2 detection of data signal result obtain USB2 testing result；By USB1 testing result and USB2
Testing result is sent to failure indication module and outside host computer；
Described first kind testing result includes: according to first sensor output signal, the second sensor output
The 5th class malfunction that signal and the 5th default detected rule obtain and corresponding with the 5th class malfunction
The 5th class failure code, the 6th class obtained according to brightness pwm signal and the 6th default detected rule
Malfunction and the sixth class failure code corresponding with the 6th class malfunction；Described USB1 testing result
And according to USB2 testing result preset the 7th detected rule, the 7th class malfunction obtained and with
The 7th class failure code that 7th class malfunction is corresponding.
Preferably, display module provides touch screen five line resistance signal；AD acquisition module collection also detects
Touch screen five line resistance signal, obtains touch screen testing result；Touch screen testing result is sent to pipe
Reason module and failure indication module；Touch screen testing result is reported in outside host computer by management module；Institute
Stating touch screen testing result is according to touch screen five line resistance signal and the 8th default detected rule,
The 8th class malfunction arrived and the eightth class failure code corresponding with the 8th class malfunction.
Preferably, display module provides touch control USB voltage signal and touch control usb data signal；
AD acquisition module collection also detects touch control USB voltage signal, and is believed by touch control USB voltage
Number testing result is sent to manage module；Management module collection also detects touch control usb data signal,
Generate touch control usb data signal detecting result；And according to touch control USB voltage signal detection knot
Really, touch control usb data signal detecting result and touch screen testing result, obtain touch control inspection
Survey result；Touch control testing result is sent to failure indication module and outside host computer；Described touch
The 9th class malfunction that the 9th detected rule controlling to preset according to testing result obtains and with the 9th class
The 9th class failure code that malfunction is corresponding.
Preferably, failure indication module includes showing malfunction indicator lamp, power failure lamp, sensor
Malfunction indicator lamp, touch control malfunction indicator lamp and other malfunction indicator lamp；Failure indication module obtains the
One class malfunction, Equations of The Second Kind malfunction, the 3rd class malfunction, the 4th class malfunction, the 5th
Class malfunction, the 6th class malfunction, the 7th class malfunction, the 8th class malfunction and the 9th class
Malfunction；And by showing that malfunction indicator lamp carries out indicating fault to first kind malfunction and fault is fixed
Position；By power failure lamp, the 3rd class malfunction and the 4th class malfunction are carried out indicating fault
And fault location；By sensor fault display lamp, the 5th class malfunction is carried out indicating fault and fault
Location；8th class malfunction and the 9th class malfunction are carried out former by touch control malfunction indicator lamp
Barrier instruction and fault location；By other malfunction indicator lamp to Equations of The Second Kind malfunction, the 6th class fault shape
State and the 7th class malfunction carry out indicating fault and fault location.
Preferably, control module sends display control command to display module so that the display of display module
Screen is in pattern brightness in daytime or pattern brightness at night；Arranging display module by display control command is pattern in daytime
Start or pattern at night starts；Temperature or the back of the body of the display screen of display module is read by display control command
Brightness or backlight state；Control module is connected with management module, and to management module, Video Detection mould
Block and AD acquisition module send self-inspection control command, make management module, video detection module and AD gather
Module carries out synchronous detecting, and is in Power-On Self-Test pattern or cycle Auto-Sensing Mode or starts Auto-Sensing Mode.
Preferably, control modules to external host computer sends on order of shaking hands, detection management module and outside
Whether network failure is there is between the machine of position；Failure indication module includes network failure display lamp, and passes through net
Network malfunction indicator lamp carries out indicating fault and fault location to network failure.
Preferably, external testing modules is connected with AD acquisition module；External testing modules gathers outside survey
Trial signal, for testing external test signal by test fixture in outside display；
Described external test signal includes: video signal, non-video signal, brightness pwm signal, first
Sensor output signal, the second sensor output signal, USB1 data signal, USB2 data signal,
USB1 voltage signal, USB2 voltage signal, touch screen five line resistance signal, touch control USB electricity
Pressure signal, touch control usb data signal and AD acquisition module running voltage signal.
Preferably, video detection module is FPGA circuitry, and management module is cpu circuit, and AD gathers
Module is AD Acquisition Circuit；FPGA circuitry is connected with cpu circuit by UART bus, and AD adopts
Collector is connected with cpu circuit by spi bus.
Display according to the band self-checking function that this utility model provides, it is possible to do not connecting computer
Quickly detect the duty of display in the case of main frame, it is achieved the instant playback of fault be accurately positioned,
There is provided for breakdown maintenance and provide powerful support for.Meanwhile, the various signals of display are outwards opened by this utility model,
It is easy to directly be detected the duty of display by test fixture.
Accompanying drawing explanation
Fig. 1 is the circuit configurations figure of the display of band self-checking function of the present utility model；
Fig. 2 is the Autonomous test schematic diagram of the display of band self-checking function of the present utility model.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, referring to the drawings
And enumerate preferred embodiment, this utility model is further described.However, it is necessary to explanation,
The many details listed in description are only used to make reader to one or more aspects of the present utility model
Have a thorough explanation, even without these specific details can also realize of the present utility model these
Aspect.
This utility model does not possess self-checking function in view of current military airborne indicator, to detection
Display fault, it is necessary to connect main frame, thereby results in the inconvenience of display fault detection, it is provided that
The display of a kind of band self-checking function, it is possible in the case of being not connected to main frame, it is achieved aobvious
Show the instant playback of device fault and be accurately positioned.
This utility model provides the display of a kind of band self-checking function, at this utility model preferred embodiment
In, described display is military airborne ruggedized monitor, as it is shown in figure 1, include:
Display module, it is provided that characterize video signal and the non-video signal of display module duty.
In this utility model preferred embodiment, video signal include VGA1 signal, VGA2 signal,
VGA3 signal, VGA4 signal, VGA5 signal and LVDS signal.VGA1 signal includes HS1
Signal and VS1 signal, VGA2 signal includes HS2 signal and VS2 signal, and VGA3 signal includes
HS3 signal and VS3 signal, VGA4 signal includes HS4 signal and VS4 signal, VGA5 signal packet
Including HS5 signal and VS5 signal, LVDS signal is the LVDS signal of display module screen control unit.Its
In, HS1, HS2, HS3, HS4, HS5 are row signal；VS1、VS2、VS3、VS4、VS5
For field signal.
In this utility model preferred embodiment, non-video signal includes: Value knobs resistance signal, continue
Electrical equipment output signal, the first running voltage signal and the second running voltage signal.Wherein, relay is for adding
Thermorelay, relay output signal is+24V；First running voltage is+12V, and the second running voltage is
+27V。
Video detection module, is connected with display module, gathers and detect video signal, generates video signal
Testing result.
In this utility model preferred embodiment, video detection module is FPGA circuitry.
In this utility model preferred embodiment, the video signal gathered according to video signal detection result
And the first detected rule preset, the first kind malfunction obtained and corresponding with first kind malfunction
First kind failure code.Wherein, first kind malfunction is corresponding with first kind failure code refers to for
Arbitrary malfunction in one class malfunction, the failure code of existence anduniquess in first kind failure code
Corresponding therewith, in this utility model description the corresponding relation of other malfunction and corresponding failure code with
This is identical.The concrete grammar of video detection module detection video signal is as shown in table 1.
Table 1
AD acquisition module, is connected with display module, gathers and detect non-video signal, generates non-video letter
Number testing result.
In this utility model preferred embodiment, AD acquisition module is AD Acquisition Circuit.
In this utility model preferred embodiment, non-video signal detecting result includes: bright according to gather
The Equations of The Second Kind fault that degree knob resistance signal, relay output signal and the second default detected rule obtain
State and the Equations of The Second Kind failure code corresponding with Equations of The Second Kind malfunction, as shown in table 2.
Table 2
In this utility model preferred embodiment, non-video signal detecting result also includes according to the gathered
The 3rd class event that one running voltage signal and the second running voltage signal and the 3rd default detected rule obtain
Barrier state and the threeth class failure code corresponding with the 3rd class malfunction, as shown in table 3.
Table 3
In this utility model preferred embodiment, AD acquisition module collection also detects video detection module, pipe
Reason module and the running voltage signal of AD acquisition module, obtain running voltage testing result；By work electricity
Pressure testing result is sent to manage module and failure indication module；Management module is by running voltage testing result
Report in outside host computer.Wherein, video detection module, management module and AD acquisition module use phase
Same+5V running voltage.
In this utility model preferred embodiment, running voltage testing result be according to video detection module,
Management module, the running voltage signal of AD acquisition module and the 4th default detected rule, the 4th obtained
Class malfunction and the fourth class failure code corresponding with the 4th class malfunction, as shown in table 4.
Table 4
Management module, is connected with video detection module and AD acquisition module, obtains video signal detection knot
Fruit and non-video signal detecting result, and by video signal detection result and non-video signal detecting result
Report in outside host computer.
In this utility model preferred embodiment, management module is cpu circuit, and FPGA circuitry passes through
UART bus is connected with cpu circuit, and AD Acquisition Circuit is connected with cpu circuit by spi bus.
In this utility model preferred embodiment, management module is connected by Ethernet with outside host computer,
The duty of display module can be reported by management module with fault message and carry out sending out in outside host computer
Cloth；Meanwhile, it is capable to the malfunction received according to outside host computer realizes the fast of fault with failure code
Speed indicates and is accurately positioned.
In this utility model preferred embodiment, display module provides brightness pwm signal, first sensor
Output signal, the second sensor output signal.
In this utility model preferred embodiment, first sensor and the second sensor are temperature sensor.
In this utility model preferred embodiment, management module is connected with display module and failure indication module,
According to the detection brightness pwm signal gathered, first sensor output signal and the second sensor output letter
Number, obtain first kind testing result；First kind testing result is sent on failure indication module and outside
Position machine.First kind testing result includes according to first sensor output signal, the second sensor output signal
And the 5th detected rule preset, the 5th class malfunction obtained and corresponding with the 5th class malfunction
5th class failure code, as shown in table 5.
Table 5
First kind testing result also includes, according to brightness pwm signal and the 6th default detected rule, obtaining
The 6th class malfunction and the sixth class failure code corresponding with the 6th class malfunction, as shown in table 6.
Table 6
In this utility model preferred embodiment, display module provides USB1 data signal, USB2 data
Signal, USB1 voltage signal and USB2 voltage signal.
In this utility model preferred embodiment, USB1 voltage and USB2 voltage are+5V.
In this utility model preferred embodiment, AD acquisition module collection and detect USB1 voltage signal and
USB2 voltage signal, sends USB1 voltage signal testing result and USB2 voltage signal testing result
To management module.Management module collection also detects USB1 data signal and USB2 data signal, generates
USB1 detection of data signal result and USB2 detection of data signal result；And according to USB1 voltage signal
Testing result and USB1 detection of data signal result obtain USB1 testing result, believe according to USB2 voltage
Number testing result and USB2 detection of data signal result obtain USB2 testing result, by USB1 detect
Result and USB2 testing result are sent to failure indication module and outside host computer.
The 7th detected rule preset according to USB1 testing result and USB2 testing result, the obtained
Seven class malfunctions and the seventh class failure code corresponding with the 7th class malfunction, as shown in table 7.
Table 7
In this utility model preferred embodiment, display module provides touch screen five line resistance signal.AD
Acquisition module collection also detects touch screen five line resistance signal, obtains touch screen testing result；To touch
Screen testing result is sent to manage module and failure indication module；Management module is by touch screen testing result
Report in outside host computer.Touch screen testing result is according to touch screen five line resistance signal and default
Eight detected rule, the 8th class malfunction obtained and the eightth class fault corresponding with the 8th class malfunction
Code, as shown in table 8.
Table 8
In this utility model preferred embodiment, display module provides touch control USB voltage signal and touches
Touch control usb data signal.AD acquisition module collection also detects touch control USB voltage signal, and
It is sent to touch control USB voltage signal testing result manage module.
Management module collection also detects touch control usb data signal, generates touch control usb data letter
Number testing result；And according to touch control USB voltage signal testing result, touch control usb data letter
Number testing result and touch screen testing result, obtain touch control testing result；Touch control is detected
Result is sent to failure indication module and outside host computer.Wherein, touch control USB voltage is+5V.
The 9th class malfunction that obtains of the 9th detected rule preset according to touch control testing result and
The nineth class failure code corresponding with the 9th class malfunction, as shown in table 9.
Table 9
The display of the band self-checking function that this utility model provides also includes:
Failure indication module, is connected with video detection module and AD acquisition module, obtains video signal inspection
Survey result and non-video signal detecting result, and according to video signal detection result and non-video signal detection
Result carries out indicating fault and fault location.
In this utility model preferred embodiment, failure indication module includes: display malfunction indicator lamp, electricity
Source malfunction indicator lamp, sensor fault display lamp, touch control malfunction indicator lamp and other malfunction indicator lamp,
By above-mentioned display lamp, various malfunctions are indicated.Other malfunction indicator lamp above-mentioned is an instruction
The display lamp of corresponding failure state.
In this utility model preferred embodiment, failure indication module is according to video signal detection result and non-
Video signal detection result carries out indicating fault and fault location specifically includes:
Failure indication module is by showing that malfunction indicator lamp carries out indicating fault and event to first kind malfunction
Barrier location, carries out indicating fault and fault location by other malfunction indicator lamp to Equations of The Second Kind malfunction,
By power failure lamp, the 3rd class malfunction is carried out indicating fault and fault location.
In this utility model preferred embodiment, failure indication module obtain first kind malfunction, second
Class malfunction, the 3rd class malfunction, the 4th class malfunction, the 5th class malfunction, the 6th class
Malfunction, the 7th class malfunction, the 8th class malfunction and the 9th class malfunction.Further,
By display malfunction indicator lamp, first kind malfunction is carried out indicating fault and fault location, pass through
Power failure lamp carries out indicating fault to the 3rd class malfunction and the 4th class malfunction and fault is fixed
Position, carries out indicating fault and fault location by sensor fault display lamp to the 5th class malfunction, logical
Cross touch control malfunction indicator lamp the 8th class malfunction and the 9th class malfunction are carried out indicating fault and
Fault location, by other malfunction indicator lamp to Equations of The Second Kind malfunction, the 6th class malfunction and the 7th
Class malfunction carries out indicating fault and fault location.
Failure indication module, by display lamp, malfunction is carried out indicating fault particularly as follows: indicating fault mould
Block detects in the malfunction that arbitrary display lamp is corresponding and there is fault, and this display lamp is red；Fault refers to
Showing module to detect in the malfunction that arbitrary display lamp is corresponding and there is not fault, this display lamp is green.
Failure indication module carries out fault location to malfunction particularly as follows: referred to by difference by display lamp
Show the lamp instruction to corresponding failure state, it is possible to obtain the particular location of the module that breaks down, thus realize
Fault location, provides reliable information for follow-up breakdown maintenance.
Failure indication module realizes quickly indicating and being accurately positioned of fault by display lamp, upper with outside
Malfunction and failure code that machine is issued combine, it is possible to determine whether the accurate location that fault occurs.
The display of the band self-checking function that this utility model provides also includes:
Control module, is connected with display module, video detection module and AD acquisition module, controls display
The display state of module, and the detection pattern of video detection module and AD acquisition module.
In this utility model preferred embodiment, control module controls the display state of display module and specifically wraps
Include: control module sends display control command to display module so that the display screen of display module is in daytime
Pattern brightness or pattern brightness at night；Arranging display module by display control command is pattern startup in daytime or night
Pattern starts；By display control command read the temperature of display screen of display module or backlight illumination or
Backlight state.
In this utility model preferred embodiment, the display screen of display module is liquid crystal display screen.
In this utility model preferred embodiment, control module is additionally operable to send computer heating control order will display
Screen heating；When display screen temperature is higher than 10 °, computer heating control order is invalid.Control module is additionally operable to send out
Computer heating control order is sent to assist the detection of computer heating control fault in Equations of The Second Kind malfunction.
In this utility model preferred embodiment, control module is connected with management module, and control module controls
Video detection module specifically includes with the detection pattern of AD acquisition module: control module to management module,
Video detection module and AD acquisition module send self-inspection control command, make management module, Video Detection mould
Block and AD acquisition module carry out synchronous detecting, and be in Power-On Self-Test pattern or cycle Auto-Sensing Mode or
Start Auto-Sensing Mode.
Management module, video detection module and AD acquisition module carry out synchronous detecting particularly as follows: manage mould
Block, video detection module and AD acquisition module be simultaneously in Power-On Self-Test pattern, cycle Auto-Sensing Mode and
Start the either mode in Auto-Sensing Mode.
Power-On Self-Test pattern particularly as follows: only carry out the pattern of self-inspection when powering up first.
Cycle Auto-Sensing Mode is particularly as follows: every time cycle self-inspection pattern once.
In this utility model preferred embodiment, the time cycle is 10 points.
Start Auto-Sensing Mode particularly as follows: under manual control, start self-inspection pattern once.
In this utility model preferred embodiment, when management module, video detection module and AD gather mould
When block is in cycle Auto-Sensing Mode, control module sends and stops self-inspection order, dwelling period self-inspection.
In this utility model preferred embodiment, control module sends acquiescence and starts order, controls management mould
Block, video detection module and AD acquisition module, when display initializes, select above-mentioned three kinds of self-inspection moulds
Either mode in formula.
In this utility model preferred embodiment, control modules to external host computer sends order of shaking hands, inspection
Whether network failure is there is between test tube reason module and outside host computer.Failure indication module and control module
It is connected, and by network failure display lamp, network failure is carried out indicating fault and fault location.
In this utility model preferred embodiment, between detection management module and outside host computer, there is network
During fault, network failure display lamp is red；When there is not network failure, network failure display lamp is green
Color.
The function of control module collects as shown in table 10.
Table 10
Above-mentioned display control command includes arranging pattern intensity command in daytime, arranging pattern intensity command at night, reading
Take backlight illumination order, read display screen temperature order, read backlit operation status command, pattern in daytime and open
Dynamic order and pattern at night start order.Above-mentioned self-inspection control command includes starting self-inspection order, cycle self-inspection
Order and acquiescence start order.The realization of Power-On Self-Test pattern sends acquiescence by control module and starts order,
And select Power-On Self-Test pattern to be achieved.
The display of the band self-checking function that this utility model provides also includes:
External testing modules, is connected with display module, gathers video signal and non-video signal, is used for
Video signal and non-video signal are tested by outside display.
Further, in this utility model preferred embodiment, external testing modules and AD acquisition module phase
Even.External testing modules gathers external test signal, for external by test fixture in outside display
Portion's test signal is tested.
Described external test signal includes: video signal, non-video signal, brightness pwm signal, first
Sensor output signal, the second sensor output signal, USB1 data signal, USB2 data signal,
USB1 voltage signal, USB2 voltage signal, touch screen five line resistance signal, touch control USB electricity
Pressure signal, touch control usb data signal and AD acquisition module running voltage signal.
External test signal is opened outside display by external testing modules, it is achieved that working state of monitor
External test mode, be combined with the self-test mode of display interior, it is possible to detect display the most neatly
Device fault, has higher practical value in display production, maintenance, maintenance process.
The function of external testing modules collects as shown in table 11.
Table 11
Fig. 2 is Autonomous test schematic diagram of the present utility model, shown in figure: the multi-signal of display module is
FPGA circuitry, cpu circuit and the detection of AD Acquisition Circuit, testing result reports in host computer.
The display of band self-checking function that this utility model provides, except integrated shared switching, video distribution,
Outside the functions such as VGA Yu LVDS conversion, CPU module, touch control, A/D conversion and interface are adaptive,
Also there is self-checking function, be not required to connect main frame and can quickly detect the duty of display,
Realize the instant playback of fault and be accurately positioned, provide for breakdown maintenance and provide powerful support for.Meanwhile, this practicality
Novel the various signals of display are outwards opened, it is simple to directly detected the work of display by test fixture
Make state.
One of ordinary skill in the art will appreciate that all or part of step realizing in above-described embodiment method
The program that can be by completes to instruct relevant hardware, and this program can be stored in a computer-readable
Take in storage medium, such as: ROM/RAM, magnetic disc, CD etc..
The above is only preferred implementation of the present utility model, it is noted that for the art
Those of ordinary skill for, on the premise of without departing from this utility model principle, it is also possible to make some
Improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. the display of a band self-checking function, it is characterised in that including:
Display module, it is provided that characterize video signal and the non-video signal of display module duty；
Video detection module, is connected with display module, gathers and detect video signal, generates video signal
Testing result；
AD acquisition module, is connected with display module, gathers and detect non-video signal, generates non-video letter
Number testing result；
Management module, is connected with video detection module and AD acquisition module, obtains video signal detection knot
Fruit and non-video signal detecting result, and by video signal detection result and non-video signal detecting result
Report in outside host computer；
Failure indication module, is connected with video detection module and AD acquisition module, obtains video signal inspection
Survey result and non-video signal detecting result, and according to video signal detection result and non-video signal detection
Result carries out indicating fault and fault location；
Control module, is connected with display module, video detection module and AD acquisition module, controls display
The display state of module, and the detection pattern of video detection module and AD acquisition module；
External testing modules, is connected with display module, gathers video signal and non-video signal, is used for
Video signal and non-video signal are tested by outside display.
2. display as claimed in claim 1, it is characterised in that
Described video signal include VGA1 signal, VGA2 signal, VGA3 signal, VGA4 signal,
VGA5 signal and LVDS signal；
Described non-video signal includes: Value knobs resistance signal, relay output signal, the first work
Voltage signal and the second running voltage signal；
The video signal gathered according to described video signal detection result and the first default detected rule,
The first kind malfunction obtained and the first kind failure code corresponding with first kind malfunction；
Described non-video signal detecting result includes: according to the Value knobs resistance signal gathered, relay
Equations of The Second Kind malfunction that output signal and the second default detected rule obtain and with Equations of The Second Kind malfunction
Corresponding Equations of The Second Kind failure code, according to the first running voltage signal gathered and the second running voltage signal
And the 3rd class malfunction that obtains of the 3rd detected rule preset and corresponding with the 3rd class malfunction the
Three class failure codes；
AD acquisition module collection also detects video detection module, management module and the work of AD acquisition module
Voltage signal, obtains running voltage testing result；Running voltage testing result is sent to manage module and
Failure indication module；Running voltage testing result is reported in outside host computer by management module；
Described running voltage testing result is according to video detection module, management module, AD acquisition module
Running voltage signal and the 4th default detected rule, the 4th class malfunction obtained and with the 4th class therefore
The 4th class failure code that barrier state is corresponding.
3. display as claimed in claim 2, it is characterised in that
Display module provides brightness pwm signal, first sensor output signal, the second sensor output letter
Number, USB1 data signal, USB2 data signal, USB1 voltage signal and USB2 voltage signal；
AD acquisition module collection also detects USB1 voltage signal and USB2 voltage signal, by USB1 electricity
Pressure signal detecting result and USB2 voltage signal testing result are sent to manage module；
Management module is connected with display module and failure indication module, according to the detection brightness PWM letter gathered
Number, first sensor output signal and the second sensor output signal, obtain first kind testing result；Will
First kind testing result is sent to failure indication module and outside host computer；
Management module collection also detects USB1 data signal and USB2 data signal, generates USB1 data
Signal detecting result and USB2 detection of data signal result；And according to USB1 voltage signal testing result and
USB1 detection of data signal result obtains USB1 testing result, ties according to the detection of USB2 voltage signal
Fruit and USB2 detection of data signal result obtain USB2 testing result；By USB1 testing result and USB2
Testing result is sent to failure indication module and outside host computer；
Described first kind testing result includes: according to first sensor output signal, the second sensor output
The 5th class malfunction that signal and the 5th default detected rule obtain and corresponding with the 5th class malfunction
The 5th class failure code, the 6th class obtained according to brightness pwm signal and the 6th default detected rule
Malfunction and the sixth class failure code corresponding with the 6th class malfunction；
The 7th detected rule preset according to described USB1 testing result and USB2 testing result, obtains
The 7th class malfunction and the seventh class failure code corresponding with the 7th class malfunction.
4. display as claimed in claim 3, it is characterised in that
Display module provides touch screen five line resistance signal；
AD acquisition module collection also detects touch screen five line resistance signal, obtains touch screen testing result；
It is sent to touch screen testing result manage module and failure indication module；Touch screen is detected by management module
Result reports in outside host computer；
Described touch screen testing result is according to touch screen five line resistance signal and the default the 8th detection rule
Then, the 8th class malfunction obtained and the eightth class failure code corresponding with the 8th class malfunction.
5. display as claimed in claim 4, it is characterised in that
Display module provides touch control USB voltage signal and touch control usb data signal；
AD acquisition module collection also detects touch control USB voltage signal, and by touch control USB electricity
Pressure signal detecting result is sent to manage module；
Management module collection also detects touch control usb data signal, generates touch control usb data letter
Number testing result；And according to touch control USB voltage signal testing result, touch control usb data letter
Number testing result and touch screen testing result, obtain touch control testing result；Touch control is detected
Result is sent to failure indication module and outside host computer；
The 9th class fault shape that the 9th detected rule preset according to described touch control testing result obtains
State and the nineth class failure code corresponding with the 9th class malfunction.
6. display as claimed in claim 5, it is characterised in that
Failure indication module includes showing the instruction of malfunction indicator lamp, power failure lamp, sensor fault
Lamp, touch control malfunction indicator lamp and other malfunction indicator lamp；
Failure indication module obtain first kind malfunction, Equations of The Second Kind malfunction, the 3rd class malfunction,
4th class malfunction, the 5th class malfunction, the 6th class malfunction, the 7th class malfunction,
Eight class malfunctions and the 9th class malfunction；And
By display malfunction indicator lamp, first kind malfunction is carried out indicating fault and fault location；
By power failure lamp, the 3rd class malfunction and the 4th class malfunction are carried out indicating fault
And fault location；
By sensor fault display lamp, the 5th class malfunction is carried out indicating fault and fault location；
By touch control malfunction indicator lamp, the 8th class malfunction and the 9th class malfunction are carried out fault
Instruction and fault location；
By other malfunction indicator lamp to Equations of The Second Kind malfunction, the 6th class malfunction and the 7th class fault
State carries out indicating fault and fault location.
7. display as claimed in claim 6, it is characterised in that
Control module sends display control command to display module so that the display screen of display module is in daytime
Pattern brightness or pattern brightness at night；Arranging display module by display control command is pattern startup in daytime or night
Pattern starts；By display control command read the temperature of display screen of display module or backlight illumination or
Backlight state；
Control module is connected with management module, and gathers mould to management module, video detection module and AD
Block sends self-inspection control command, makes management module, video detection module and AD acquisition module synchronize
Detection, and be in Power-On Self-Test pattern or cycle Auto-Sensing Mode or start Auto-Sensing Mode.
8. display as claimed in claim 7, it is characterised in that control modules to external host computer is sent out
Send order of shaking hands, between detection management module and outside host computer, whether there is network failure；
Failure indication module includes network failure display lamp, and by network failure display lamp to network failure
Carry out indicating fault and fault location.
9. display as claimed in claim 8, it is characterised in that external testing modules gathers with AD
Module is connected；
External testing modules gathers external test signal, for external by test fixture in outside display
Portion's test signal is tested；
Described external test signal includes: video signal, non-video signal, brightness pwm signal, first
Sensor output signal, the second sensor output signal, USB1 data signal, USB2 data signal,
USB1 voltage signal, USB2 voltage signal, touch screen five line resistance signal, touch control USB electricity
Pressure signal, touch control usb data signal and AD acquisition module running voltage signal.
10. the display as described in claim 1-9 is arbitrary, it is characterised in that video detection module is
FPGA circuitry, management module is cpu circuit, and AD acquisition module is AD Acquisition Circuit；
FPGA circuitry is connected with cpu circuit by UART bus, and AD Acquisition Circuit is total by SPI
Line is connected with cpu circuit.
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|---|---|---|---|
| CN201620055113.6U CN205540696U (en) | 2016-01-20 | 2016-01-20 | Take display of self test function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608863A (en) * | 2018-05-03 | 2018-10-02 | 江苏新通达电子科技股份有限公司 | Virtual instrument monitors emergency system and working method, virtual meter panel, automobile |
| CN113963655A (en) * | 2021-10-29 | 2022-01-21 | 中航华东光电有限公司 | High-reliability airborne display control system based on FPGA |
-
2016
- 2016-01-20 CN CN201620055113.6U patent/CN205540696U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608863A (en) * | 2018-05-03 | 2018-10-02 | 江苏新通达电子科技股份有限公司 | Virtual instrument monitors emergency system and working method, virtual meter panel, automobile |
| CN113963655A (en) * | 2021-10-29 | 2022-01-21 | 中航华东光电有限公司 | High-reliability airborne display control system based on FPGA |
| CN113963655B (en) * | 2021-10-29 | 2024-02-09 | 中航华东光电有限公司 | High-reliability airborne display control system based on FPGA |
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