CN107589337A - A kind of method for detecting short circuit and controller - Google Patents
A kind of method for detecting short circuit and controller Download PDFInfo
- Publication number
- CN107589337A CN107589337A CN201710926384.3A CN201710926384A CN107589337A CN 107589337 A CN107589337 A CN 107589337A CN 201710926384 A CN201710926384 A CN 201710926384A CN 107589337 A CN107589337 A CN 107589337A
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- Prior art keywords
- circuit
- hdmi
- short
- controller
- pin
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Abstract
The present invention is applied to HDMI (High Definition Multimedia Interface, HDMI) field, there is provided a kind of method for detecting short circuit and controller.After HDMI is had been deployed in electronic equipment, controller detect between multiple pins that the HDMI has whether short circuit, and it is short-circuit between any two pin in the multiple pin when output short-circuit alarm signal.So, by detecting that HDMI any two two pins are short-circuit, it may be determined that the short circuit of electronic equipment is as caused by HDMI pin short circuit.In this inspection HDMI two two pins whether short circuit technical scheme, go for produce with HDMI electronic equipment during, can also be applied to using with HDMI electronic equipment process.
Description
Technical field
The invention belongs to HDMI (High Definition Multimedia Interface,
HDMI) field, more particularly to a kind of method for detecting short circuit and controller.
Background technology
During the electronic equipment with HDMI functions is produced, cross wave-soldering or artificial repair welding all easily causes weldering
Disk short circuit；In addition, either post-chip HDMI seats or plug-in unit HDMI seats, spacing all very littles, most narrow place is only less than 0.5 millimeter
（mm）, also easily cause short circuit.Because HDMI has 19 pins（PIN）, each pin has different definition, and HDMI is disposed
In distinct electronic apparatuses, work is participated according to electronic equipment demand difference pin.
Prior art can only judge on electronic equipment plate open circuit and short-circuit two states, during if certain internal resistance, with regard to nothing
Method identifies.
The content of the invention
In consideration of it, the present invention provides a kind of method for detecting short circuit and controller, detect electronic equipment short circuit whether by
HDMI is caused.
In a first aspect, the present invention provides a kind of method for detecting short circuit, applied to including detecting HDMI
HDMI electronic equipment, methods described include：
It is whether short-circuit between multiple pins that the controller detection HDMI has；
Output short-circuit alarm signal when the controller is short-circuit between any two pin in the multiple pin.
Any with reference to first aspect may design, and in this may be designed, methods described also includes：
Detection is exported when the controller is not short-circuit between multiple pins in the HDMI and passes through signal.
Any with reference to first aspect may be designed, and in this may be designed, the controller, which detects the HDMI, to be had
Multiple pins between whether short circuit, including：
Whether the pin and lower margin in the controller detection HDMI are short-circuit.
Any with reference to first aspect may be designed, and in this may be designed, the controller, which detects the HDMI, to be had
Multiple pins between whether short circuit, including：
Whether the adjacent leads that the controller is detected in the HDMI are short-circuit.
With reference to first aspect it is any may design, in this may be designed, the controller be single-chip microcomputer, processor or
The other chips with disposal ability of person.
Second aspect, a kind of controller of the present invention, the controller include performing times of first aspect or first aspect
The functional module that meaning may design.
The third aspect, a kind of controller of the present invention, the controller include：
Detection unit, between the multiple pins having for detecting HDMI HDMI whether short circuit；
As a result output unit, for it is short-circuit between any two pin in the multiple pin when output short-circuit alarm letter
Number.
Any with reference to the third aspect may design, and in this may be designed, the result output unit, be additionally operable in institute
Output detection passes through signal when stating not short-circuit between multiple pins in HDMI.
Any with reference to the third aspect may design, in this may be designed, the detection unit, specifically for detecting institute
State pin in HDMI and whether lower margin is short-circuit.
Any with reference to the third aspect may design, in this may be designed, the detection unit, specifically for detecting institute
Whether the adjacent leads stated in HDMI are short-circuit.
With reference to the third aspect it is any may design, in this may be designed, the controller be single-chip microcomputer, processor or
The other chips with disposal ability of person.
Fourth aspect, the present invention provide a kind of storage medium, and the storage medium store instruction, controller, which performs the instruction, to be made
Obtain any method for detecting short circuit that offer may be provided that the controller performs first aspect or first aspect.
5th aspect, the present invention provide a kind of program product, and the program product includes instruction, and controller, which performs the instruction, to be made
Obtain any method for detecting short circuit that offer may be provided that the controller performs first aspect or first aspect.
The beneficial effect of the application：After HDMI is had been deployed in electronic equipment, controller, which detects the HDMI, to be had
Multiple pins between whether short circuit, and it is short-circuit between any two pin in the multiple pin when output short-circuit alert
Signal.So, by detecting that HDMI any two two pins are short-circuit, it may be determined that the short circuit of electronic equipment is drawing by HDMI
Caused by pin short circuit.In this inspection HDMI two two pins whether short circuit technical scheme, go for having in production
During HDMI electronic equipment, it can also be applied in the process using the electronic equipment with HDMI, because with
The pollution effect that HDMI usage time increases or use environment is brought, HDMI agings or because environmental pollution may also caused by
The short circuit of two two pins.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is a kind of Organization Chart of the application scenarios of method for detecting short circuit provided in an embodiment of the present invention；
Fig. 2 is a kind of indicative flowchart of method for detecting short circuit provided in an embodiment of the present invention；
Fig. 3 is the composition structure chart of controller provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Framework embodiment
Referring to Fig. 1, electronic equipment 100 includes HMDI101, and HDMI101 is connected with controller 102.Controller 102 can access
HDMI101, control HDMI101 carry out data transmission.
, it should be understood that although Fig. 1, which is illustrated as controller 102, is independently of electronic equipment 100, in specific implementation, controller
102 be able to can also not only be integrated in electronic equipment 100 independently of electronic equipment 100.Alternatively, using electronic equipment 100
In processor realize controller 102.
Controller 102 can be processor, such as CPU (Central Processing Unit, CPU).
Alternatively, controller 102 can also be other processors, digital signal processor (Digital Signal
Processor, DSP), it is application specific integrated circuit (Application Specific Integrated Circuit, ASIC), existing
Into programmable gate array (Field-Programmable Gate Array, FPGA) or other PLDs, divide
Vertical door or transistor logic, discrete hardware components etc..Other processors can be microprocessor etc..
Alternatively, controller 102 can be single-chip microcomputer, such as 51 monolithic sections；The type to single-chip microcomputer and model be not herein
Limit, such as controller 102 can be model AT89S52 single-chip microcomputer.
Electronic equipment 100 is except with HDMI101, in addition to processor and memory；
The memory storage computer instruction；
Computer instruction in the computing device memory so that it is corresponding that the electronic equipment 100 controls HDMI101 to realize
Data-transformation facility.
Alternatively, the processor can be CPU (Central Processing Unit, CPU), at this
Reason device can also be other general processors, digital signal processor (Digital Signal Processor, DSP), special
Integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array
(Field-Programmable Gate Array, FPGA) either other PLDs, discrete gate or transistor
Logical device, discrete hardware components etc..General processor can be microprocessor or the processor can also be any routine
Processor etc..
If controller 102 is integrated in electronic equipment 100.Alternatively, realized using the processor in electronic equipment 100
Controller 102.
Alternatively, the memory can include read-only storage and random access memory, and provide instruction to processor
And data.The a part of of memory can also include nonvolatile RAM.Set for example, memory can also store
The information of standby type.
Embodiment of the method
The present embodiment provides a kind of method for detecting short circuit, referring to Fig. 2, including step S201, step S202, step S203 and step
S204。
Step 201, it is whether short-circuit between multiple pins that the controller detection HDMI has.
HDMI has M pin, and whether controller can detect short-circuit between N number of pin in M pin.Wherein, M is more than
Or it is more than or equal to 2 equal to N, N；M and N is positive integer.
Alternatively, power pins and ground pin fall within M pin in HDMI.
Alternatively, the application for detect between N number of pin whether the short-circuit detecting mode of short circuit, do not limit, such as
It is whether short-circuit that two neighboring pin can be detected with poll, such as can be traveled through whether short between two two pins in the N number of pin of detection
Road, it can also artificially specify certain two pin in the N number of pin of detection whether short-circuit certainly.
Short circuit is the known concept of electricity field.Short-circuit between two pins, the internal resistance between equivalent to two pins is
Zero.It is for HDMI, i.e. short-circuit between two pins, it is zero equivalent to the internal resistance between two pins in HDMI.
Two pins of detection are exemplified below, and whether a kind of of short circuit implements, and is divided into two parts and detects.
Part I detects, and whether the pin and lower margin in the controller detection HDMI are short-circuit.
Specifically, it is whether short-circuit with lower margin respectively to detect N number of pin in HDMI respectively for controller.If for example,
HDMI has 19 pins, and first pin is lower margin, and it is whether short-circuit with lower margin to detect remaining pin respectively；If appoint in HDMI
One pin and lower margin short circuit, then controller exits detection, and sends alarm signal（Such as sound and light alarm）, while pass through serial ports
Output and the pin number of the pin of lower margin short circuit.
Part II detects, and whether the two neighboring pin that controller poll is detected in the HDMI is short-circuit.
Specifically, it is whether short-circuit with lower margin respectively to detect N number of pin in HDMI respectively for controller.If for example,
HDMI has 19 pins, and first pin is lower margin, whether short-circuit detects two two pins in remaining pin respectively；If HDMI
Any of the short circuit of pin and adjacent leads, then controller exits detection, and sends alarm signal（Such as sound and light alarm）, simultaneously
Pass through the pin number of the adjacent leads of serial ports output short-circuit.
Alternatively, in Part II detection, whether controller can detect two two pins in the HDMI with poll
Short circuit, two two pins can be adjacent leads, may not be two adjacent pins, do not limit herein.
By Part I detection and Part II detection, if controller does not send alarm signal and exits inspection
Survey, then represent in HDMI and do not occur short-circuit conditions between any two pins, then user HDMI can be prompted not draw two-by-two
The situation of pin short circuit, such as single " drop " sound is sent, and rs 232 serial interface signal is exported, and termination detection.
, it should be understood that in step 201 when the controller detects that short circuit between any two pin in HDMI, then perform step
202；When the controller detects that it is not short-circuit between all two two pins in HDMI, then perform step 203.
Step 202, output short-circuit alarm letter when short-circuit between any two pin of the controller in N number of pin
Number.
, it should be understood which kind of form output short-circuit alarm signal is the application use to controller, and export which type of short
Road alarm signal, is not limited.Such as just can be alerted with acoustics of the prior art, flashing light can also be used to alert, or
The other alarm modes for being easy to notify user of person.
For example, controller is by the external LED warning lights of serial bus, when controller in N number of pin any two
When short-circuit between individual pin, the electric signal of output indication short circuit alarm signal, LED warning lights are controlled to flash by the electric signal.
Step 203, detection is exported when not short-circuit between N number of pin of the controller in the HDMI and passes through signal.
, it should be understood that the application passes through signal, and the which type of inspection of output to controller using which kind of form output detection
Survey passes through signal, does not limit.Such as just can be notified with acoustics of the prior art, flashing light can also be used to notify, or
The other advice methods for being easy to notify user of person.
For example, controller is by the external LED green lights of serial bus, when controller in HDMI appointing in N number of pin
When anticipating not short-circuit between two two pins, output indication detects the electric signal by signal, passes through the electric signal and controls LED green lights
Light always.
A kind of possible embodiment, before step S201 is performed, controller is set to setting state.
When controller is in setting state, each internal resistance between pin and lower margin in traverse scanning HDMI；Specifically,
The potentiometer for detecting each pin is adjusted, from big past ditty, until triggering alarm, then adjusts back again and exits triggering；With this
Analogize, detected each internal resistance between pin and lower margin in detection HDMI；Thus debugging has been got well HDMI in electronic equipment and existed
Board test acts.
After completing scanning, controller is exited into setting state, is set to test mode；Under test mode, controller performs
In step 201 and step 202 detection HDMI between two two pins whether short circuit, and short-circuit alarming or detection pass through.
, it should be understood that when above method embodiment carries out the whether short-circuit detection of two two pins to HDMI, the HDMI has been completed
Deployment on an electronic device.So, it is whether short-circuit by detecting HDMI two two pins, it may be determined that the short circuit of electronic equipment
Whether caused due to HDMI pin short circuit.
Apparatus embodiments
It should be noted that the controller that apparatus embodiments provide, corresponding with above method embodiment, it is real that the above method can be achieved
Apply example, therefore the specific implementation of unit that the controller includes, reference can be made to corresponding description in embodiment of the method.
In addition, the division of the functional module in the controller that apparatus embodiments provide, the application do not limit, such as can be with
Divided according to method and step is corresponding, naturally it is also possible to multiple steps in One function module realizing method embodiment.
A kind of citing of each functional module division in controller is provided below, referring to Fig. 3, controller 300 includes：
Detection unit 301, between the multiple pins having for detecting HDMI HDMI whether short circuit；
As a result output unit 302, for it is short-circuit between any two pin in the multiple pin when output short-circuit alert
Signal.
Alternatively, the result output unit 302, when being additionally operable to not short-circuit between multiple pins in the HDMI
Output detection passes through signal.
Alternatively, the detection unit 301, it is whether short-circuit specifically for the pin in the detection HDMI and lower margin.
Alternatively, the detection unit 301, it is whether short-circuit specifically for detecting the adjacent leads in the HDMI.
Alternatively, the controller is single-chip microcomputer, processor or other chips with disposal ability.
Program product
This apparatus embodiments provides a kind of storage medium, and the storage medium can be above-mentioned memory；The storage medium is used for
Store computer instruction；
The controller performs the computer instruction in the storage medium so that the controller performs what embodiment of the method provided
Method for detecting short circuit.
This apparatus embodiments provides a kind of computer program, and the controller performs the computer that the computer program includes
Instruction so that the controller performs the method for detecting short circuit that embodiment of the method provides.In addition, the computer program can store
In above-mentioned storage medium.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each work(
Can unit division progress for example, in practical application, can be as needed and by above-mentioned function distribution by different functions
Unit, module are completed, will the internal structure of the controller be divided into different functional units or module, to retouch more than completing
The all or part of function of stating.Each functional unit in embodiment can be integrated in a processing unit or each
Individual unit is individually physically present, can also two or more units it is integrated in a unit, above-mentioned integrated unit was both
It can be realized, can also be realized in the form of SFU software functional unit in the form of hardware.In addition, each functional unit is specific
Title is not limited to the protection domain of the application also only to facilitate mutually distinguish.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Member and algorithm steps, it can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, application-specific and design constraint depending on technical scheme.Professional and technical personnel
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided by the present invention, it should be understood that disclosed device, can be real by another way
It is existing.For example, controller embodiment described above is only schematical, for example, the division of the unit, is only one kind
Division of logic function, can there is an other dividing mode when actually realizing, such as multiple units or component can combine or can
To be integrated into another system, or some features can be ignored, or not perform.Another, shown or discussed is mutual
Coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication connection of device or unit by some interfaces,
Can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, the technical scheme of the embodiment of the present invention
The part substantially to be contributed in other words to prior art or all or part of the technical scheme can be with software products
Form embody, the computer software product is stored in a storage medium, including some instructions are causing one
Computer equipment（Can be personal computer, server, or network equipment etc.）Or processor（processor）Perform this hair
The all or part of step of the bright each embodiment methods described of embodiment.And foregoing storage medium includes：USB flash disk, mobile hard disk,
Read-only storage（ROM, Read-Only Memory）, random access memory（RAM, Random Access Memory）, magnetic
Dish or CD etc. are various can be with the medium of store program codes.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although with reference to foregoing reality
Example is applied the present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each
Technical scheme described in embodiment is modified, or carries out equivalent substitution to which part technical characteristic；And these are changed
Or replace, the essence of appropriate technical solution is departed from the spirit and model of each embodiment technical scheme of the embodiment of the present invention
Enclose.
Claims (10)
1. a kind of method for detecting short circuit, it is characterised in that applied to the electronics including detecting HDMI HDMI
Equipment, methods described include：
It is whether short-circuit between multiple pins that the controller detection HDMI has；
Output short-circuit alarm signal when the controller is short-circuit between any two pin in the multiple pin.
2. method for detecting short circuit as claimed in claim 1, it is characterised in that methods described also includes：
Detection is exported when the controller is not short-circuit between multiple pins in the HDMI and passes through signal.
3. method for detecting short circuit as claimed in claim 1, it is characterised in that the controller detection HDMI has more
It is whether short-circuit between individual pin, including：
Whether the pin and lower margin in the controller detection HDMI are short-circuit.
4. method for detecting short circuit as claimed in claim 1, it is characterised in that the controller detection HDMI has more
It is whether short-circuit between individual pin, including：
Whether the adjacent leads that the controller is detected in the HDMI are short-circuit.
5. the method for detecting short circuit as described in any one of Claims 1-4, it is characterised in that the controller is single-chip microcomputer, place
Manage device or other chips with disposal ability.
6. a kind of controller, it is characterised in that the controller includes：
Detection unit, between the multiple pins having for detecting HDMI HDMI whether short circuit；
As a result output unit, for it is short-circuit between any two pin in the multiple pin when output short-circuit alarm letter
Number.
7. controller as claimed in claim 6, it is characterised in that
The result output unit, detection is exported when being additionally operable to not short-circuit between multiple pins in the HDMI and passes through letter
Number.
8. controller as claimed in claim 6, it is characterised in that
The detection unit, it is whether short-circuit specifically for the pin in the detection HDMI and lower margin.
9. controller as claimed in claim 6, it is characterised in that
The detection unit, it is whether short-circuit specifically for detecting the adjacent leads in the HDMI.
10. the controller as described in any one of claim 6 to 9, it is characterised in that the controller is single-chip microcomputer, processor
Or other chips with disposal ability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710926384.3A CN107589337B (en) | 2017-10-07 | 2017-10-07 | Short circuit detection method and controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710926384.3A CN107589337B (en) | 2017-10-07 | 2017-10-07 | Short circuit detection method and controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107589337A true CN107589337A (en) | 2018-01-16 |
| CN107589337B CN107589337B (en) | 2020-03-06 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710926384.3A Expired - Fee Related CN107589337B (en) | 2017-10-07 | 2017-10-07 | Short circuit detection method and controller |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010276344A (en) * | 2009-05-26 | 2010-12-09 | Nec Computertechno Ltd | Electric test system and electric test method |
| CN102169154A (en) * | 2011-01-13 | 2011-08-31 | 深圳创维－Rgb电子有限公司 | A method and a device for testing an HDMI |
| CN202083765U (en) * | 2011-03-24 | 2011-12-21 | 华容电子（昆山）有限公司 | High definition multimedia interface (HDMI) open short circuit test device |
| CN104038758A (en) * | 2014-06-25 | 2014-09-10 | 深圳市九洲电器有限公司 | HDMI (high-definition multimedia interface) port detecting device and method |
| CN104569661A (en) * | 2014-12-23 | 2015-04-29 | 深圳市九洲电器有限公司 | HDMI interface testing circuit and device |
-
2017
- 2017-10-07 CN CN201710926384.3A patent/CN107589337B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010276344A (en) * | 2009-05-26 | 2010-12-09 | Nec Computertechno Ltd | Electric test system and electric test method |
| CN102169154A (en) * | 2011-01-13 | 2011-08-31 | 深圳创维－Rgb电子有限公司 | A method and a device for testing an HDMI |
| CN202083765U (en) * | 2011-03-24 | 2011-12-21 | 华容电子（昆山）有限公司 | High definition multimedia interface (HDMI) open short circuit test device |
| CN104038758A (en) * | 2014-06-25 | 2014-09-10 | 深圳市九洲电器有限公司 | HDMI (high-definition multimedia interface) port detecting device and method |
| CN104569661A (en) * | 2014-12-23 | 2015-04-29 | 深圳市九洲电器有限公司 | HDMI interface testing circuit and device |
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| Publication number | Publication date |
|---|---|
| CN107589337B (en) | 2020-03-06 |
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