CN107888448A - Reverse power supply detection means and method - Google Patents
Reverse power supply detection means and method Download PDFInfo
- Publication number
- CN107888448A CN107888448A CN201711057727.3A CN201711057727A CN107888448A CN 107888448 A CN107888448 A CN 107888448A CN 201711057727 A CN201711057727 A CN 201711057727A CN 107888448 A CN107888448 A CN 107888448A
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- power supply
- unit
- supply unit
- numerical value
- checking
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
- H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/738—Interface circuits for coupling substations to external telephone lines
- H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
- H04M3/302—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs
- H04M3/304—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs and using xDSL modems
Abstract
The invention provides a kind of reverse power supply detection means, for testing the functional completeness of power supply unit, including：By electric unit, control unit and display unit；Power supply unit is electrically connected with by telephone wire and reverse power supply detection means by electric unit；The voltage output end of power supply unit, it is electrically connected with control unit by electric unit and display unit；It is used for the electric energy that power supply unit offer is provided by electric unit；Control unit is used for being carried out different application scenarios analog configurations by electric unit and monitoring whether the magnitude of voltage that power supply unit exports under different application scenarios meets the corresponding testing result of preset requirement generation；Display unit is used for testing result real-time display to test user.Present invention also offers a kind of reverse power supply detection method.The device simple and effective can detect to reverse power supply equipment, it is not necessary to which artificial intervention is automatically performed all standard detections.
Description
Technical field
The invention belongs to dsl device detection technique field, and in particular to reverse power supply detection means and method.
Background technology
Because the network topology of telephone line is more complicated, it is possible to occur existing in line short, circuit on signal wire
The complicated application scenario such as traditional telephone ring signal, the power supply to telephone set, this is with regard to RPF (Reverse Power
Feed, reverse power supply) unit security requirement it is very high, just need to carry out various situations about being likely to occur when design
Detection, RPF modules can carry out detection of shaking hands with the PD modules of receiving end, and whether detection receiving end is legal, the ranking score of receiving end
Class, each stage of whole testing process, which divides, a variety of situations, is mainly entirely detected using manual type at present non-
It is often complicated and cumbersome, therefore how the easy and effective detection that complete function is quickly carried out to RPF modules is particularly important.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of reverse power supply detection means and method, use
In overcome in the prior art the shortcomings that.
Specifically, the present invention proposes embodiment in detail below：
The embodiments of the invention provide a kind of reverse power supply detection means, for testing the functional completeness of power supply unit,
Including：By electric unit, control unit and display unit；
Said supply unit is electrically connected with by telephone wire and the reverse power supply detection means by electric unit；The confession
The voltage output end of electric unit, described it is electrically connected with by electric unit and the display unit with described control unit；
The electric energy for being used to receive power supply unit offer by electric unit；
Described control unit is used for the application scenarios analog configuration different by electric unit progress and monitored different
Whether the magnitude of voltage that said supply unit exports under application scenarios meets preset requirement to generate corresponding testing result；
The display unit is used for the testing result real-time display to test user.
As the further improvement of above-mentioned technical proposal, the application scenarios include：Fault detect, PD checkings, PD classifications
Checking, Line Attenuation checking and overload protection checking；The fault detect specifically includes：Telephone line short circuit, telephone line are opened
Dc source on road, telephone line be present and phone off-hook occurs in telephone line；The PD checkings include：Effective PD and invalid
PD；PD verified for judging that can be received power supply unit by electric unit is powered, can only receive power supply unit power supply by
Electric unit is only effective PD, it is impossible to which that receive power supply unit power supply is invalid PD by electric unit；Described control unit is pressed successively
The sequencing of fault detect, PD checkings, PD classifications checking, Line Attenuation checking and overload protection checking carries out analog configuration,
Only when a certain scene detection by after can just automatically switch to scene and continue to detect.
As the further improvement of above-mentioned technical proposal, the application scenarios of the fault detect are included in simulation power up
During normal power supply.
As the further improvement of above-mentioned technical proposal, the PD classifications checking is divided into Three Estate, each grade pair
The power output answered is all different, it is necessary to detect whether output power value matches with corresponding grade.
As the further improvement of above-mentioned technical proposal, the magnitude of voltage of power supply unit output is numerical value during the fault detect
A, the magnitude of voltage that fault detect is verified rear power supply unit output is numerical value B, continues PD checkings, is powered when detecting effective PD
The magnitude of voltage of unit output be numerical value C, then PD classification checkings, the magnitude of voltage that power supply unit exports are less than numerical value D more than numerical value C；
When fault detect, PD checking, PD classification checking all by after, power supply unit export normal voltage value be numerical value E；Numerical value A is extremely
Numerical value E increases successively.
The embodiment of the present invention additionally provides a kind of reverse power supply detection method, is tested and powered using reverse power supply detection means
The functional completeness of unit, the reverse power supply detection means include：By electric unit, control unit and display unit；The confession
Electric unit is electrically connected with by telephone wire and the reverse power supply detection means by electric unit；The voltage of said supply unit is defeated
Go out end, described be electrically connected with by electric unit and the display unit with described control unit；This method includes：
To being carried out a certain application scenarios analog configuration by electric unit；
Whether the magnitude of voltage for monitoring the application scenarios lower outer portion power supply unit meets preset requirement；
Generate corresponding testing result and by the testing result by display unit real-time display to test user.
As the further improvement of above-mentioned technical proposal, the application scenarios include：Fault detect, PD checkings, PD classifications
Checking, Line Attenuation checking and overload protection checking；The fault detect specifically includes：Telephone line short circuit, telephone line are opened
Dc source on road, telephone line be present and phone off-hook occurs in telephone line；The PD checkings include：Effective PD and invalid
PD；PD verified for judging that can be received power supply unit by electric unit is powered, can only receive power supply unit power supply by
Electric unit is only effective PD, it is impossible to which that receive power supply unit power supply is invalid PD by electric unit；Described control unit is pressed successively
The sequencing of fault detect, PD checkings, PD classifications checking, Line Attenuation checking and overload protection checking carries out analog configuration,
Only when a certain scene detection by after can just automatically switch to scene and continue to detect.
As the further improvement of above-mentioned technical proposal, the application scenarios of the fault detect are included in simulation power up
During normal power supply.
As the further improvement of above-mentioned technical proposal, the PD classifications checking is divided into Three Estate, each grade pair
The power output answered is all different, it is necessary to detect whether output power value matches with corresponding grade.
As the further improvement of above-mentioned technical proposal, the magnitude of voltage of power supply unit output is numerical value during the fault detect
A, the magnitude of voltage that fault detect is verified rear power supply unit output is numerical value B, continues PD checkings, is powered when detecting effective PD
The magnitude of voltage of unit output be numerical value C, then PD classification checkings, the magnitude of voltage that power supply unit exports are less than numerical value D more than numerical value C；
When fault detect, PD checking, PD classification checking all by after, power supply unit export normal voltage value be numerical value E；Numerical value A is extremely
Numerical value E increases successively.
Using technical scheme provided by the invention, compared with existing known technology, at least have the advantages that：It is logical
Control unit is crossed to being carried out different scene configuration by electric unit, including：Line short, open circuit, the circuit required in RPF standards
On dc source be present, the scene such as phone off-hook occurs in circuit, effective PD, invalid PD, PD hierarchical detection, Line Attenuation carries out mould
Switching control is fitted, while the magnitude of voltage for monitoring power supply unit output meets the scope of standard requirement, finally data is passed through aobvious
Show that unit is shown, so as to reach the purpose of automatic detection.Reverse power supply equipment can be detected with simple and effective, no
Artificial intervention is needed to be automatically performed all standard detections, so as to the matter for improving the detection integrality of product He ensure that product
Amount.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is a kind of structural representation for reverse power supply detection means that the embodiment of the present invention proposes.
Fig. 2 is a kind of schematic flow sheet for reverse power supply detection method that the embodiment of the present invention proposes.
Main element symbol description：
101- is by electric unit；102- control units；103- display units；104- power supply units.
Embodiment
Hereinafter, the various embodiments of the disclosure will be described more fully.The disclosure can have various embodiments, and
It can adjust and change wherein.It should be understood, however, that：It is limited to specific reality disclosed herein in the absence of by disclosure protection domain
The intention of example is applied, but the disclosure should be interpreted as covering all in the spirit and scope for the various embodiments for falling into the disclosure
Adjustment, equivalent and/or alternative.
Hereinafter, disclosed in the term " comprising " that can be used in the various embodiments of the disclosure or " may include " instruction
Function, operation or the presence of element, and do not limit the increase of one or more functions, operation or element.In addition, such as exist
Used in the various embodiments of the disclosure, term " comprising ", " having " and its cognate are meant only to represent special characteristic, number
Word, step, operation, the combination of element, component or foregoing item, and be understood not to exclude first one or more other
Feature, numeral, step, operation, element, component or foregoing item combination presence or one or more features of increase, numeral,
Step, operation, element, component or foregoing item combination possibility.
The statement (" first ", " second " etc.) used in the various embodiments of the disclosure can be modified in various implementations
Various element in example, but respective sets can not be limited into element.For example, presented above be not intended to limit the suitable of the element
Sequence and/or importance.The purpose presented above for being only used for differentiating an element and other elements.For example, the first user sets
Standby and second user equipment instruction different user devices, although the two is all user equipment.For example, each of the disclosure is not being departed from
In the case of the scope of kind embodiment, the first element is referred to alternatively as the second element, and similarly, the second element is also referred to as first
Element.
It should be noted that：, can be by the first composition member if an element ' attach ' to another element by description
Part is directly connected to the second element, and " connection " the 3rd can be formed between the first element and the second element
Element.On the contrary, when an element " being directly connected to " is arrived into another element, it will be appreciated that be in the first element
And second be not present the 3rd element between element.
The term used in the various embodiments of the disclosure is only used for describing the purpose of specific embodiment and not anticipated
In the various embodiments of the limitation disclosure.Unless otherwise defined, be otherwise used herein all terms (including technical term and
Scientific terminology) there is the implication identical being generally understood that with the various embodiment one skilled in the art of the disclosure to contain
Justice.The term (term such as limited in the dictionary typically used) be to be interpreted as have with correlative technology field
Situational meaning identical implication and the implication with Utopian implication or overly formal will be not construed as, unless at this
It is clearly defined in disclosed various embodiments.
Embodiment 1
As shown in figure 1, the embodiments of the invention provide a kind of reverse power supply detection means, for testing power supply unit 104
Functional completeness, including：By electric unit 101, control unit 102 and display unit 103.
Power supply unit 104 is electrically connected with by telephone wire with reverse power supply detection means by electric unit 101；Power supply unit
104 voltage output end, it is electrically connected with control unit 102 by electric unit 101 and display unit 103.
It is used for the electric energy that power supply unit offer is provided by electric unit 101.
Control unit 102 is used for being carried out different application scenarios analog configurations by electric unit 101 and monitoring different answer
Whether the magnitude of voltage exported with power supply unit under scene 104 meets preset requirement to generate corresponding testing result.
Display unit 103 is used for the testing result real-time display to test user.
The application scenarios include：Fault detect, PD checkings, PD classifications checking, Line Attenuation checking and overload protection are tested
Card；The fault detect specifically includes：Telephone line short circuit, telephone line open circuit, exist on telephone line dc source and
There is phone off-hook in telephone line；The PD checkings include：Effective PD and invalid PD；PD is verified for can judge by electric unit
The power supply of power supply unit is received, can only receive power supply unit power supply is only effective PD by electric unit, it is impossible to is received and is supplied
Electric unit power supply is invalid PD by electric unit；Described control unit is successively by fault detect, PD checkings, PD classifications checking, line
The sequencing of road decay checking and overload protection checking carries out analog configuration, only when a certain scene detection by after just can be from
It is dynamic to be switched to scene and continue to detect.
Only fault detect can just be switched to the scene of PD checkings by rear, and effective PD is verified as then by will to PD
Be switched to PD classification checkings, PD level authentications by rear, PD will normal power supply, just switch follow-up Line Attenuation after normal power supply
Checking and overload protection checking scene.
The application scenarios of the fault detect are also included in simulation power up and during normal power supply.
Because telephone wire is short-circuit, opens a way, dc source be present and occur phone off-hook failure to be originally present within,
It could also be possible that occur in power supply process, so needing to simulate different time of occurrences.Specifically by control unit control by
Different phenomenon of the failure (short circuit, open circuit, external dc power, off-hook) is inserted in electric unit switching, while detects the electricity on circuit
Press output area, it is faulty in the presence of power supply unit be unable to the voltage value E of outputting standard, phenomenon of the failure is divided into upper
Occur in electric process and occur two kinds of situations during normal power supply, when occurring in power up, power supply unit can not export mark
Accurate voltage value E, now exportable magnitude of voltage is numerical value A, then returns to the situation with detection of being shaken hands by electric unit,
When phenomenon of the failure is occurring during normal power supply, power supply unit need at once stop continued power, be then back to again with
Shaken hands by electric unit the situation of detection.Control unit monitors the electricity on circuit by inserting phenomenon of the failure under different situations
Whether pressure meets the requirements, and is shown by display unit.
The PD classifications checking is divided into Three Estate, and power output corresponding to each grade is different, it is necessary to detect
Whether output power value matches with corresponding grade.
PD, which is classified, shares three ranks, SR1, SR2 and SR3, and power corresponding to Three Estate is different, it is necessary to single with power supply
On the rank for the power that member provides is corresponding, this verification process is exactly PD classification checkings.
The magnitude of voltage that power supply unit exports during the fault detect is numerical value A, and fault detect is verified rear power supply unit
The magnitude of voltage of output is numerical value B, continues PD checkings, the magnitude of voltage that power supply unit exports when detecting effective PD is numerical value C, then PD
Classification checking, the magnitude of voltage of power supply unit output are less than numerical value D more than numerical value C；When fault detect, PD checkings, PD classification checkings
All by rear, power supply unit output normal voltage value is numerical value E；All voltages use same measurement unit, numerical value A, B, C,
D, E increases successively.
Power supply unit be connected by electric unit after, can first detect circuit on the presence or absence of failure (line short, open circuit,
Dc source be present, phone off-hook occur), 4 kinds of situations of the above occur one and just illustrate faulty, list of being powered if faulty
First output voltage values are numerical value A, and meeting double faults detection is until be verified.Because fault detect is to add one on the line very
Small numerical value A is carried out, so be just this voltage when detection at the beginning.When fault detect by after, control is single
Member monitors the voltage change situation on circuit by controlling switching by the different resistance values on electric unit circuit, works as resistance
For that can be increased to numerical value C by the voltage on power supply unit outlet line during the effective resistance of electric unit, voltage is in the case of other
Numerical value B, the resistance of graded resistance is controlled to switch again when resistance is the effective resistance by electric unit, on power supply unit outlet line
Magnitude of voltage can be between numerical value C and numerical value D, it is possible thereby to detect power supply unit and the situation of shaking hands between by electric unit.Inspection
Measure power supply unit and the situation of shaking hands between by electric unit is exactly whether detect PD effective.The output voltage of this power supply unit
It is increase step by step, often meets one and require just proceed in next step.
Line Attenuation is verified：Control unit is after power supply unit normal output voltage numerical value E, and switching control is by electricity
The load change of unit, makes to be loaded the maximum load for reaching class requirement by electric unit, and the decay of control unit control circuit reaches
To the maximum of standard requirement, then by detecting whether the output voltage of power supply unit can also meet the requirements.
Overload protection checking specially control unit is adjusted by electric unit after power supply unit normal output voltage numerical value E
Load, increase to the overload detection value of requirement, at the same the output voltage for monitoring power supply unit whether can carry out overload protection and
Stop normal continuous power supply.
Testing mechanism flow chart is as follows：Two stages can be divided into, the first stage is to detect each stage respectively not
Same situation, to the last normal power supply, second stage start increase and load and monitor output voltage situation, finally complete overall
Detection.
Embodiment 2
As shown in Fig. 2 the embodiments of the invention provide a kind of reverse power supply detection method, reverse power supply detection means is used
The functional completeness of power supply unit is tested, the reverse power supply detection means includes：It is single by electric unit, control unit and display
Member；Said supply unit is electrically connected with by telephone wire and the reverse power supply detection means by electric unit；The power supply is single
The voltage output end of member, described it is electrically connected with by electric unit and the display unit with described control unit；This method includes：
S101, to being carried out a certain application scenarios analog configuration by electric unit.
Whether S102, the magnitude of voltage for monitoring the application scenarios lower outer portion power supply unit meet preset requirement.
S103, the corresponding testing result of generation are simultaneously used the testing result by display unit real-time display to test
Family.
The application scenarios include：Fault detect, PD checkings, PD classifications checking, Line Attenuation checking and overload protection are tested
Card；The fault detect specifically includes：Telephone line short circuit, telephone line open circuit, exist on telephone line dc source and
There is phone off-hook in telephone line；The PD checkings include：Effective PD and invalid PD；PD is verified for can judge by electric unit
The power supply of power supply unit is received, can only receive power supply unit power supply is only effective PD by electric unit, it is impossible to is received and is supplied
Electric unit power supply is invalid PD by electric unit；Described control unit is successively by fault detect, PD checkings, PD classifications checking, line
The sequencing of road decay checking and overload protection checking carries out analog configuration, only when a certain scene detection by after just can be from
It is dynamic to be switched to scene and continue to detect.
The application scenarios of the fault detect are included in simulation power up and during normal power supply.
The PD classifications checking is divided into Three Estate, and power output corresponding to each grade is different, it is necessary to detect
Whether output power value matches with corresponding grade.
The magnitude of voltage that power supply unit exports during the fault detect is numerical value A, and fault detect is verified rear power supply unit
The magnitude of voltage of output is numerical value B, continues PD checkings, the magnitude of voltage that power supply unit exports when detecting effective PD is numerical value C, then PD
Classification checking, the magnitude of voltage of power supply unit output are less than numerical value D more than numerical value C；When fault detect, PD checkings, PD classification checkings
All by rear, power supply unit output normal voltage value is numerical value E；All voltages use same measurement unit, numerical value A, B,
C, D, E increase successively.
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram for being preferable to carry out scene, module in accompanying drawing or
Flow is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in equipment in implement scene can be described according to implement scene into
Row is distributed in the equipment of implement scene, can also carry out respective change and be disposed other than the one or more of this implement scene to set
In standby.The module of above-mentioned implement scene can be merged into a module, can also be further split into multiple submodule.
The invention described above sequence number is for illustration only, does not represent the quality of implement scene.Disclosed above is only the present invention
Several specific implementation scenes, still, the present invention is not limited to this, and the changes that any person skilled in the art can think of is all
Protection scope of the present invention should be fallen into.
Claims (10)
- A kind of 1. reverse power supply detection means, for testing the functional completeness of power supply unit, it is characterised in that including：By electricity Unit, control unit and display unit；Said supply unit is electrically connected with by telephone wire and the reverse power supply detection means by electric unit；The power supply is single The voltage output end of member, described it is electrically connected with by electric unit and the display unit with described control unit；The electric energy for being used to receive power supply unit offer by electric unit；Described control unit is used for the application scenarios analog configuration different by electric unit progress and monitors different applications Whether the magnitude of voltage that said supply unit exports under scene meets preset requirement to generate corresponding testing result；The display unit is used for the testing result real-time display to test user.
- 2. reverse power supply detection means according to claim 1, it is characterised in that the application scenarios include：Failure is examined Survey, PD is verified, PD classifications are verified, Line Attenuation is verified and overload protection checking；The fault detect specifically includes：Telephone line Dc source be present on short-circuit, telephone line open circuit, telephone line and phone off-hook occurs in telephone line；The PD checkings bag Include：Effective PD and invalid PD；PD is verified for judging that can be received power supply unit by electric unit is powered, and can only receive confession Electric unit power supply is only effective PD by electric unit, it is impossible to which that receive power supply unit power supply is invalid PD by electric unit；It is described Control unit is successively by the sequencing of fault detect, PD checkings, PD classifications checking, Line Attenuation checking and overload protection checking Carry out analog configuration, only when a certain scene detection by after can just automatically switch to scene and continue to detect.
- 3. reverse power supply detection means according to claim 2, it is characterised in that the application scenarios bag of the fault detect Include in simulation power up and during normal power supply.
- 4. the reverse power supply detection means stated according to claim 2, it is characterised in that the PD classifications checking is divided into three etc. Level, power output corresponding to each grade are different, it is necessary to detect whether output power value matches with corresponding grade.
- 5. reverse power supply detection means according to claim 2, it is characterised in that power supply unit is defeated during the fault detect The magnitude of voltage gone out is numerical value A, and the magnitude of voltage that fault detect is verified rear power supply unit output is numerical value B, continues PD checkings, inspection The magnitude of voltage that power supply unit exports when measuring effective PD be numerical value C, then PD classification checkings, the magnitude of voltage that power supply unit exports are more than Numerical value C is less than numerical value D；When fault detect, PD checking, PD classification checking all by after, power supply unit export normal voltage value For numerical value E；Numerical value A to numerical value E increases successively.
- 6. a kind of reverse power supply detection method, the functional completeness of power supply unit is tested using reverse power supply detection means, it is special Sign is that the reverse power supply detection means includes：By electric unit, control unit and display unit；Said supply unit passes through Telephone wire is electrically connected with the reverse power supply detection means by electric unit；It is the voltage output end of said supply unit, described It is electrically connected with by electric unit and the display unit with described control unit；This method includes：To being carried out a certain application scenarios analog configuration by electric unit；Whether the magnitude of voltage for monitoring the application scenarios lower outer portion power supply unit meets preset requirement；Generate corresponding testing result and by the testing result by display unit real-time display to test user.
- 7. the reverse power supply detection method that claim 6 is stated, it is characterised in that the application scenarios include：Fault detect, PD are tested Card, PD classifications checking, Line Attenuation checking and overload protection checking；The fault detect specifically includes：Telephone line short circuit, electricity Dc source be present on words open lines, telephone line and phone off-hook occurs in telephone line；The PD checkings include：Effectively PD and invalid PD；PD is verified for judging that can be received power supply unit by electric unit is powered, and can only receive power supply unit Power supply is only effective PD by electric unit, it is impossible to which that receive power supply unit power supply is invalid PD by electric unit；The control is single Member carries out mould by the sequencing of fault detect, PD checkings, PD classifications checking, Line Attenuation checking and overload protection checking successively Intend configuration, only when a certain scene detection by after can just automatically switch to scene and continue to detect.
- 8. the reverse power supply detection method stated according to claim 7, it is characterised in that the application scenarios of the fault detect include Simulate in power up and during normal power supply.
- 9. reverse power supply detection method according to claim 7, it is characterised in that the PD classifications checking is divided into three etc. Level, power output corresponding to each grade are different, it is necessary to detect whether output power value matches with corresponding grade.
- 10. reverse power supply detection method according to claim 7, it is characterised in that the power supply unit during fault detect The magnitude of voltage of output is numerical value A, and the magnitude of voltage that fault detect is verified rear power supply unit output is numerical value B, continues PD checkings, The magnitude of voltage that power supply unit exports when detecting effective PD be numerical value C, then PD classification checkings, the magnitude of voltage that power supply unit exports are big It is less than numerical value D in numerical value C；When fault detect, PD checking, PD classification checking all by after, power supply unit export normal voltage It is worth for numerical value E；Numerical value A to numerical value E increases successively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711057727.3A CN107888448B (en) | 2017-11-01 | 2017-11-01 | Reverse power supply detection device and method |
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|---|---|---|---|
| CN201711057727.3A CN107888448B (en) | 2017-11-01 | 2017-11-01 | Reverse power supply detection device and method |
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| CN107888448A true CN107888448A (en) | 2018-04-06 |
| CN107888448B CN107888448B (en) | 2020-04-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0865900A (en) * | 1994-08-22 | 1996-03-08 | Meidensha Corp | Single operation detector for non-utility generator facility |
| US20040146061A1 (en) * | 2003-01-29 | 2004-07-29 | Brian Bisceglia | Method and apparatus for dynamic termination of unused wired connection |
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| CN106301546A (en) * | 2015-06-09 | 2017-01-04 | 中兴通讯股份有限公司 | Reverse power supply circuit detection processing method and processing device |
| CN107153591A (en) * | 2017-05-09 | 2017-09-12 | 郑州云海信息技术有限公司 | A kind of detection method and device of memory construction for electricity |
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| JPH0865900A (en) * | 1994-08-22 | 1996-03-08 | Meidensha Corp | Single operation detector for non-utility generator facility |
| US20040146061A1 (en) * | 2003-01-29 | 2004-07-29 | Brian Bisceglia | Method and apparatus for dynamic termination of unused wired connection |
| CN102053229A (en) * | 2009-11-02 | 2011-05-11 | 康佳集团股份有限公司 | Power detection device |
| CN103221832A (en) * | 2012-11-07 | 2013-07-24 | 华为技术有限公司 | Line detection processing method and equipment |
| CN106301546A (en) * | 2015-06-09 | 2017-01-04 | 中兴通讯股份有限公司 | Reverse power supply circuit detection processing method and processing device |
| CN107153591A (en) * | 2017-05-09 | 2017-09-12 | 郑州云海信息技术有限公司 | A kind of detection method and device of memory construction for electricity |
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