CN107132448B - Recognition methods, device and system and the storage medium and processor of power supply wiring - Google Patents
Recognition methods, device and system and the storage medium and processor of power supply wiring Download PDFInfo
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- CN107132448B CN107132448B CN201710159424.6A CN201710159424A CN107132448B CN 107132448 B CN107132448 B CN 107132448B CN 201710159424 A CN201710159424 A CN 201710159424A CN 107132448 B CN107132448 B CN 107132448B
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- power supply
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a kind of recognition methods of power supply wiring, device and system and storage medium and processors.This method comprises: the power supply signal of detection power supply, wherein power supply is connected by normally open contactor with unit equipment；Determine the wiring of power supply with the presence or absence of failure according to power supply signal；In the normal situation of wiring, control normally open contactor closure is powered to unit equipment.Through the invention, the identification certainty for improving power supply wiring has been achieved the effect that.
Description
Technical field
The present invention relates to appliance fields, in particular to a kind of recognition methods of power supply wiring, device and system and deposit
Storage media and processor.
Background technique
Currently, power supply is all to be spliced directly to electrical equipment from external power supply, the power supply system of electrical equipment is more and more
Sample, for example, the power supply of electrical equipment includes DC power supply, single phase alternating current power supply, three-phase alternating-current supply, wherein three-phase alternating current
Power supply also includes three-phase three-wire system, three-phase four-wire system, three-phase five-wire mode etc..In addition, due to power supply system multiplicity, many electric appliances are set
It is standby to have strict requirements to the phase sequence of three phase mains, once there is the power supply system wrong of electrical equipment, power phase wrong,
Or the situation that direct current positive and negative anodes are reversed, it will direct electrical equipment such as cannot work, or even can cause fire, explosion at the safe thing
Therefore.
For the situation present on and problem, usually the wiring of power supply is identified.This field is generallyd use
Method be using the reversed situation of power supply system wrong, power phase of counnter attack plug prevention electrical equipment, this method this
The generation of wiring error is prevented to some extent, still, the plug of power end can be only inserted into corresponding equipment end and insert
On head, counnter attack plug can only prevent the appearance that wiring misplaces from joint, not ensure that the operation end power supply of electrical equipment
The correctness of phase sequence, in addition, not intuitive, indefinite to the instruction of the false wiring information of power supply, the identification of power supply wiring is reliable
Property is low.When there is counnter attack plug and the case where fixing line wrong, even with counnter attack plug, once power supply line and connector
Sequentially wrong, disorder or the positive and negative anodes for also resulting in electrical equipment operation end phase sequence are reversed, so as to cause the hair of safety accident
Raw, the reliability protected to the operation of electrical equipment is low.
For the low problem of the identification certainty of power supply wiring in the related technology, effective solution side is not yet proposed at present
Case.
Summary of the invention
The main purpose of the present invention is to provide a kind of recognition methods of power supply wiring, device and system and storage medium and
Processor, the identification certainty to solve the problems, such as power supply wiring in the related technology are low.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of recognition methods of power supply wiring.It should
The recognition methods of power supply wiring includes: the power supply signal for detecting power supply, wherein power supply passes through normally open contactor and unit equipment phase
Connection；Determine the wiring of power supply with the presence or absence of failure according to power supply signal；In the normal situation of wiring, normally open contactor is controlled
Closure is powered to unit equipment.
Optionally, after the wiring for determining power supply according to power supply signal is with the presence or absence of failure, in wiring, there are failures
In the case of, broadcasting prompt information, wherein there are failures for prompting the wiring of power supply for prompt information.
Optionally, it is deposited in the case of a fault in wiring, broadcasting prompt information, comprising: the case where there are failures for wiring
Under, broadcast speech prompt information, wherein speech prompt information is for there are failures with the wiring of speech form prompt power supply.
Optionally, speech prompt information is broadcasted, comprising: the first speech prompt information of casting, wherein the first voice prompting letter
Breath is for prompting the wiring of power supply there are the fault type of failure；And/or the second speech prompt information of casting, wherein the second language
Sound prompt information is for prompting to be adjusted the wiring of the power supply there are failure according to predetermined registration operation.
Optionally, the power supply signal for detecting power supply includes: to detect to the power supply system of power supply, obtains the first power supply letter
Number；The power phase of power supply is detected, second source signal is obtained.
Optionally, determined the wiring of power supply with the presence or absence of failure according to power supply signal, comprising: to be sentenced according to the first power supply signal
Whether disconnected power supply system meets the first preset condition, and judges whether power phase meets second and preset according to second source signal
Condition；If judging that power supply system does not meet the first preset condition according to the first power supply signal, and/or believed according to second source
Number judge that power phase does not meet the second preset condition, determining the wiring of power supply, there are failures；If believed according to the first power supply
Number judge that power supply system meets the first preset condition, and it is default according to second source signal to judge that power phase meets second
Condition determines that the wiring of power supply is normal.
To achieve the goals above, according to another aspect of the present invention, a kind of identification device of power supply wiring is additionally provided.
The identification device of the power supply wiring includes: detection unit, for detecting the power supply signal of power supply, wherein power supply is connect by normally opened
Tentaculum is connected with unit equipment；Determination unit, for being determined the wiring of power supply with the presence or absence of failure according to power supply signal；Control
Unit, in the normal situation of wiring, control normally open contactor closure to be powered to unit equipment.
Optionally, the identification device of the power supply wiring further include: casting unit, for determining power supply according to power supply signal
Wiring with the presence or absence of after failure, deposited in the case of a fault in wiring, broadcasting prompt information, wherein prompt information is used for
There are failures for the wiring of prompt power supply.
To achieve the goals above, according to another aspect of the present invention, a kind of identifying system of power supply wiring is additionally provided.
The identifying system of the power supply includes: detection module, for detecting the power supply signal of power supply, wherein power supply passes through normally open contactor
It is connected with unit equipment；Processing module is connected with detection module, for determined according to power supply signal power supply wiring whether
There are failures；Control module is connected with processing module, in the normal situation of wiring, controlling normally open contactor closure,
It powers to unit equipment.
Optionally, the identifying system of power supply wiring further include: broadcasting module is connected with processing module, for connecing
Line is deposited in the case of a fault, broadcasting prompt information, wherein there are failures for prompting the wiring of power supply for prompt information.
Optionally, detection module obtains the first power supply signal, to power supply for detecting to the power supply system of power supply
Power phase is detected, and second source signal is obtained.
Optionally, processing module includes: output module, in the normal situation of wiring, output to control signal；Control
Module includes: driving circuit, is connected with output module, is connect for receiving control signal, and according to control signal control is normally opened
Tentaculum closure.
To achieve the goals above, according to another aspect of the present invention, a kind of identifying system of power supply wiring is additionally provided.
The identifying system of the power supply wiring includes: detection module, for detecting the power supply signal of power supply, wherein power supply is connect by normally opened
Tentaculum is connected with unit equipment；Processing module is connected with detection module, for determining the wiring of power supply according to power supply signal
With the presence or absence of failure；Control module is connected with processing module, for controlling normally open contactor in the normal situation of wiring
Closure is powered to unit equipment；Storage medium, for storing program, wherein program at runtime for from detection module, from
Reason module and the data of control module output execute following processing step: detecting the power supply signal of power supply；It is true according to power supply signal
The wiring of power supply is determined with the presence or absence of failure；In the normal situation of wiring, control normally open contactor closure is supplied to unit equipment
Electricity.
To achieve the goals above, according to another aspect of the present invention, a kind of identifying system of power supply wiring is additionally provided.
The identifying system of the power supply wiring includes: detection module, for detecting the power supply signal of power supply, wherein power supply is connect by normally opened
Tentaculum is connected with unit equipment；Processing module is connected with detection module, for determining the wiring of power supply according to power supply signal
With the presence or absence of failure；Control module is connected with processing module, for controlling normally open contactor in the normal situation of wiring
Closure is powered to unit equipment；Processor, processor run program, wherein program run when for from detection module, processing
Module and the data of control module output execute following processing step: detecting the power supply signal of power supply；It is determined according to power supply signal
The wiring of power supply whether there is failure；In the normal situation of wiring, control normally open contactor closure is powered to unit equipment.
To achieve the goals above, according to another aspect of the present invention, a kind of storage medium is additionally provided.The storage medium
Program including storage, wherein the recognition methods for the power supply wiring that equipment where control storage medium executes in program operation.
To achieve the goals above, according to another aspect of the present invention, a kind of processor is additionally provided.The processor is used for
Run program, wherein the recognition methods of power supply wiring is executed when program is run.
Through the invention, using the power supply signal of detection power supply, wherein power supply passes through normally open contactor and unit equipment phase
Connection；Determine the wiring of power supply with the presence or absence of failure according to power supply signal；In the normal situation of wiring, normally open contactor is controlled
Closure is powered to unit equipment.Due to carrying out calculation process to power supply signal, determining power supply after detecting power supply signal
Wiring whether there is failure, and in the normal situation of the wiring of power supply, be closed by contactor to unit equipment and powered, mentioned
The high reliability of power supply wiring identification, solves the problems, such as that the identification certainty of power supply wiring is low, and then reached raising electricity
The effect of the identification certainty of source wiring.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of schematic diagram of the identifying system of power supply wiring according to an embodiment of the present invention；
Fig. 2 is a kind of flow chart of the recognition methods of power supply wiring according to an embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of wiring faults type identification device according to an embodiment of the present invention；And
Fig. 4 is a kind of schematic diagram of the identification device of power supply wiring according to an embodiment of the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
Embodiment 1
The embodiment of the invention provides a kind of identifying systems of power supply wiring.
Fig. 1 is a kind of schematic diagram of the identifying system of power supply wiring according to an embodiment of the present invention.As shown in Figure 1, the electricity
The identifying system of source wiring includes: detection module 10, processing module 20 and control module 30.
Detection module 10, for detecting the power supply signal of power supply, wherein power supply passes through normally open contactor and unit equipment phase
Connection.
Power supply is the power source that unit equipment is used, for example, power supply is three-phase five-wire mode AC power source or other shapes
The AC power source and DC power supply of formula.Detection module 10 is used to detect the power supply signal of power supply, and the power supply signal of the power supply can be with
For the voltage signal of power supply at work, for example, detection module 10 acquires voltage of the wiring of power supply relative to ground.Power supply letter
It is number associated with the wiring of power supply, the parameters such as standard and the power phase of power supply can be detected according to the power supply signal of power supply.
The detection module 10 can be connected on the power supply line of the normally open contactor front end with normally opened contact, the power supply line
The power supply line on mains supply line only to lean on unit equipment.The power supply is connected by normally open contactor with unit equipment, is led to
Cross the conducting and disconnection between normally open contactor control power supply and unit equipment.For example, under the original state of system electrification, often
The control coil of open relay does not power on, and normally opened relay is off-state, is in an off state between power supply and unit equipment,
After the control coil of normally opened relay powers on, normally opened relay is closed state, is in and leads between power supply and unit equipment
Logical state, the power supply are powered to unit equipment.
In this embodiment, in order to guarantee the safety of unit equipment, the initial state of unit equipment be it is cold, only
After testing result shows that wiring is all gone well, can just unit equipment be made to power on, therefore the embodiment connecing using normally opened contact
Tentaculum；If, when the route of power supply once connects, unit equipment will power on immediately using the contactor of normally-closed contact, do not come also
It obtains and the wiring of detection power supply whether there is failure, unit equipment may burn out or explode, and lead to safety accident
Occur.
Optionally, which can cause accident tighter using normally open contactor to avoid when system breaks down
The situation of weight occurs.In system failure or explosion time on fire, system meeting loss of function, normally open contactor will be because of control
The forfeiture of function disconnects contact automatically, to cut off contacting for unit equipment and external power supply；If using normally-closed contact
Contactor, once explosion on fire occurs for unit equipment, contactor can maintain normally off always, and external power supply continued power is led
Cause accident is more serious.
The quantity of normally open contactor in the embodiment determines by the power supply standard of unit equipment, normally open contactor
The quantity just preferential quantity for choosing line as defined in unit equipment.
Processing module 20 is connected with detection module 10, for determining that the wiring of power supply whether there is according to power supply signal
Failure.
Processing module 20 is connected with detection module 10, after detection module 10 detects the power supply signal of power supply, connects
The power supply signal that detection module 10 is sent is received, which carries detection module 10 to the detection data of power supply.Processing module
20 pairs of power supply signals carry out calculation process, obtain processing result, which is used to indicate the wiring of power supply with the presence or absence of event
Barrier, can serve to indicate that whether the wiring of power supply malfunctions, for example, processing module after receiving power supply signal, is believed power supply
Number d-q transformation calculations are carried out, the phase sequence for obtaining the wiring of power supply is positive sequence or inverted sequence, and then determines whether the phase sequence of power supply connects
Mistake etc. can also determine whether the wiring of power supply is reversed etc., for example, the 1st line and the 4th line of power supply are reversed.
Optionally, if processing module 20 according to power supply signal determines the wiring of power supply, there are failures, obtain power supply
Fault message existing for wiring, according to the Encoded output signal of fault message to control broadcasting prompt information, which is used
In prompt power supply wiring there are failures.
Control module 30 is connected with processing module 20, in the normal situation of wiring, control normally open contactor to be closed
It closes, powers to unit equipment.
Control module 30 is connected with processing module 20, is determining the wiring of power supply just according to power supply signal in processing module 20
In the case where often, the control coil for controlling the normally open contactor on power supply line is powered on, then normally open contactor is closed, at this point, power supply
It is connected with unit equipment by the closure of normally open contactor, power supply is powered to unit equipment, is first examined to realize to power supply
It surveys, is unit equipment power supply to the mode being closed after normally open contactor.Due to only after the wiring for detecting power supply is normal,
It is just closed normally open contactor, so that unit equipment powers on the identification certainty for securely and reliably having reached and having improved power supply wiring
Effect.
The embodiment detects the power supply signal of power supply by detection module 10, wherein power supply passes through normally open contactor and machine
Group equipment be connected, be connected by processing module 20 with detection module 10, according to power supply signal determine power supply wiring whether
There are failures, are connected by control module 30 with processing module 20, for controlling normally opened contact in the normal situation of wiring
Device closure, powers to unit equipment.Due to carrying out calculation process to power supply signal, determining electricity after detecting power supply signal
The wiring in source whether there is failure, and in the normal situation of the wiring of power supply, is closed by contactor to unit equipment and is powered,
Improve power supply wiring identification reliability, avoid can only in the joint counnter attack of unit equipment, once and lead to power supply line
Situation wrong with connector sequence, that the power supply of equipment end input mistake will occur, the identification certainty for solving power supply wiring are low
The problem of, and then achieved the effect that the identification certainty for improving power supply wiring.
Optionally, the identifying system of the power supply wiring further include: broadcasting module is connected with processing module, for
Wiring is deposited in the case of a fault, broadcasting prompt information, wherein there are failures for prompting the wiring of power supply for prompt information.
Processing module is connected with detection module, for determining that the wiring of power supply whether there is failure according to power supply signal,
It deposits in the case of a fault, is broadcasted for prompting the wiring of power supply there are the prompt information of failure in wiring.The power supply wiring
Identifying system in addition to include detection module, processing module and control module other than, further include broadcasting module.The broadcasting module with
Processing module is connected, and for depositing in the case of a fault in wiring, broadcasts above-mentioned prompt information, which can be detailed
The thin several threads for arriving power supply and several threads are reversed etc., for example, the 1st line and the 5th line of power supply are reversed, thus butted line
Existing failure accurately, intuitively and easily prompt, and then convenient for user quickly according to prompt information to the current of power supply
Wiring is adjusted.
Optionally, broadcasting module is used to deposit in the case of a fault in wiring, broadcasts speech prompt information, the voice prompting
There are failures for prompting the wiring of power supply with speech form for information, make the details of power supply wiring failure by the shape of voice
Formula broadcasts, more intuitively, conveniently.
Optionally, broadcasting module is for broadcasting the first speech prompt information, and first speech prompt information is for prompting electricity
Fault type existing for the wiring in source, the fault type can be the several threads of power supply and the detailed letter of several threads wrong
Breath, the broadcasting module can also broadcast the second speech prompt information, and second speech prompt information is for prompting according to default behaviour
Opposing, there are the wiring of the power supply of failure to be adjusted, for example, broadcasting mould if the wiring of power supply detected as negative-phase sequence
Block needs to exchange so that the phase sequence of power supply is adjusted to positive sequence the wiring of power supply by voice prompting.
Optionally, which obtains the first power supply signal, to power supply for detecting to the power supply system of power supply
Power phase detected, obtain second source signal.
Detection module can detecte the power supply system and power phase of power supply, and then the electricity of power supply is determined by processing module
Source standard and power phase whether there is failure.Optionally, detection module can also detect the reversed situation of direct current positive and negative anodes.
Optionally, the prompt information of broadcasting module casting can also be text information other than speech prompt information, should
The place that text information needs that user is facilitated to watch in the identifying system of power supply wiring increases display screen, spatially has certain
Limitation.Prompt information can also be shown by the fault code of numeral method, require to look up fault code table in this way
Confirmed, wherein fault code table has recorded the corresponding relationship of fault code and failure.Prompt information can also be believed for light
Breath, the optical information can only indicate the fault message of simple power supply wiring, cannot indicate detailed fault message.
Optionally, which includes: output module, in the normal situation of wiring, output to control signal；Control
Molding block includes: driving circuit, is connected with output module, for receiving control signal, and it is normally opened according to control signal control
Contactor closure.
Processing module includes output module, exports the height in the normal situation of wiring of power supply by the output module
The control signal of level, the driving circuit of the low and high level signal Jing Guo control module, drives the control coil of normally open contactor
It powers on, the normally opened contact closure of control contactor, so that power supply be made to be connected with unit equipment, unit equipment is powered on, to make
The identifying system of upper power supply wiring just controls normally open contactor closure in the case where the wiring of power supply detects normal situation, guarantees access
The power supply system of unit equipment and the reliability of power phase.
Embodiment 2
The embodiment of the invention also provides a kind of recognition methods of power supply wiring.It should be noted that the electricity of the embodiment
The recognition methods of source wiring can be used for executing the identifying system of above-mentioned power supply wiring.
Fig. 2 is a kind of flow chart of the recognition methods of power supply wiring according to an embodiment of the present invention.As shown in Fig. 2, the party
Method the following steps are included:
Step S202 detects the power supply signal of power supply.
In the technical solution that the application above-mentioned steps S202 is provided, the power supply signal of power supply is detected, wherein power supply passes through
Normally open contactor is connected with unit equipment.
Power supply is the power source that unit equipment is used, and detects the power supply signal of power supply, which can be power supply
Voltage signal at work, for example, voltage of the wiring of power supply relative to ground.The power supply signal is related to the wiring of power supply
Connection can detect the parameters such as standard and the power phase of power supply according to the power supply signal of power supply.Power supply passes through normally open contactor
It is connected with unit equipment, the on-off between power supply and unit equipment is controlled by normally open contactor.Of unit equipment in this way
Beginning state must be it is cold, only after testing result shows that wiring all goes well, unit equipment is powered on, and ensure that unit
The safety of equipment operation.
Step S204 determines the wiring of power supply with the presence or absence of failure according to power supply signal.
In the technical solution that the application above-mentioned steps S204 is provided, determine whether the wiring of power supply deposits according to power supply signal
In failure.
After the power supply signal of detection power supply, calculation process is carried out according to power supply signal, to judge the power supply system of power supply
Formula, power phase whether wrong.Optionally, the power supply system of power supply and power phase are detected, obtains detection data, it is right
Detection data carries out processing operation, analyzes power supply system and whether power phase is wrong.
Optionally, power supply includes L1 line, L2 line, L3 line, L4 line and L5 line.Detect L1 line, L2 line, L3 line, L4 line, L5
The voltage of line over the ground, obtains detection data.3 lines that voltage is 220V are 3 firewires, this 3 firewires connect in corresponding wiring
On terminal；The sine voltage signal on this 3 firewires is acquired, d-q transformation meter is carried out to the sine voltage signal on 3 firewires
It calculates, the phase sequence of 3 firewires is obtained, if the phase sequence of 3 firewires is negative phase-sequence, it is determined that the phase sequence of 3 firewires is wrong, if 3
The phase sequence of root firewire is positive sequence, it is determined that the phase sequence of 3 firewires is correct.Due to zero curve and ground wire from power supply end of registering one's residence be exactly to connect
It is connected together, therefore the reversed short-term operation to equipment of zero curve and ground wire not will cause and seriously affect, but there is the person
The security risk of electric shock.The resistance that is internally provided with 3 different resistance values of the embodiment in unit equipment, this 3 different resistance values
Resistance constitute three-phase imbalance load.After detecting that above-mentioned 3 firewires are normal, it is closed the corresponding contactor of 3 firewires,
Firewire is connected on the three-phase imbalance load inside unit equipment, and then detects the relatively other both threads of 3 firewires respectively
On voltage, by three-phase voltage balance line be determined as ground wire, imbalance of three-phase voltage line is determined as zero curve, so as to examine
Measure 3 firewires, 1 zero curve, 1 ground wire of power supply.
Step S206, in the normal situation of wiring, control normally open contactor closure is powered to unit equipment.
In the technical solution that the application above-mentioned steps S206 is provided, in the normal situation of wiring, normally opened contact is controlled
Device closure, powers to unit equipment.
After the wiring for determining power supply according to power supply signal is with the presence or absence of failure, in the normal situation of wiring, control
Normally open contactor closure, powers to unit equipment.That is, if after the wiring of power supply all goes well, output control signal leads to
The control coil for the normally open contactor crossed on control signal control power supply line powers on, then the contact point closure of normally open contactor, this
When, power supply and unit equipment are connected by the closure of normally open contactor, and power supply is powered to unit equipment, to realize to electricity
Source is first detected, and is unit equipment power supply to the mode being closed after normally open contactor.Due to only the wiring for detecting power supply just
After often, it is just closed normally open contactor, so that unit equipment powers on the identification for securely and reliably having reached and having improved power supply wiring
The effect of reliability.
The embodiment passes through the power supply signal of detection power supply, and power supply is connected by normally open contactor with unit equipment.Root
Determine that the wiring of power supply whether there is failure in the normal situation of wiring according to power supply signal, control normally open contactor closure, to
Unit equipment power supply, due to carrying out calculation process to power supply signal, determining that the wiring of power supply is after detecting power supply signal
No there are failures, and in the normal situation of the wiring of power supply, are closed by contactor to unit equipment and are powered, improve power supply
The reliability of wiring identification, solves the problems, such as that the identification certainty of power supply wiring is low, and then has reached and improved power supply wiring
The effect of identification certainty.
As an alternative embodiment, after the wiring for determining power supply according to power supply signal is with the presence or absence of failure,
It is deposited in the case of a fault in wiring, broadcasting prompt information, wherein there are failures for prompting the wiring of power supply for prompt information.
After the wiring for determining power supply according to power supply signal is with the presence or absence of failure, deposited in the case of a fault in wiring,
Fault message can be broadcasted according to the encoded signal of internal error information, user passes through the fault message to failure in turn
Wiring be modified.Fault message can arrive in detail power supply several threads and several threads it is reversed etc., so that butted line is deposited
Failure carry out it is accurate, intuitively and easily prompt, and then convenient for user's quickly currently connecing to power supply according to prompt information
Line is adjusted.
As an alternative embodiment, being deposited in the case of a fault in wiring, broadcasting prompt information, comprising: connecing
Line is deposited in the case of a fault, and speech prompt information is broadcasted, wherein speech prompt information is used for speech form prompt power supply
There are failures for wiring.
After the wiring for determining power supply according to power supply signal is with the presence or absence of failure, deposited in the case of a fault in wiring,
Speech prompt information is broadcasted, there are failures for prompting the wiring of power supply with speech form for the speech prompt information, connect power supply
The details of line failure are broadcasted by way of voice, more intuitively, conveniently, consequently facilitating wiring person is conveniently and efficiently
The power supply wiring of failure is adjusted.
As an alternative embodiment, casting speech prompt information, comprising: the first speech prompt information of casting,
In, the first speech prompt information is for prompting the wiring of power supply there are the fault type of failure；And/or the second voice prompting of casting
Information, wherein the second speech prompt information is for prompting to be adjusted the wiring of the power supply there are failure according to predetermined registration operation.
Speech prompt information can be used for prompting the wiring of power supply there are the fault type of failure, for example, power supply which
Root line and several threads are reversed etc., so that the details of wiring error are broadcasted by way of voice, more intuitively, just
Just, and/or for prompting to be adjusted the wiring of the power supply there are failure according to predetermined registration operation, for example, for prompting to out
Any both threads in the wiring of the power supply of existing failure are exchanged, and then the power phase of mistake is adjusted to correct power supply
Phase sequence is conveniently and efficiently adjusted the power supply wiring of failure convenient for wiring person.
As an alternative embodiment, the power supply signal of detection power supply includes: to examine to the power supply system of power supply
It surveys, obtains the first power supply signal；The power phase of power supply is detected, second source signal is obtained.
The power supply signal of power supply is detected, the power supply signal is associated with power supply system, that is, different power supply system and not
With power phase lead to different power supply signals, different power supply systems and different power phases are opposite with power supply signal
It answers, wherein power supply signal can be voltage signal, for example, 3 lines that voltage is 220V must be 3 firewires, this 3 fire
Line must be connect on corresponding connecting terminal, and otherwise power supply occurs as soon as wiring faults.For the power supply system of power supply, to electricity
Source standard is detected, and the first power supply signal is obtained, that is, first power supply signal is corresponding with the power supply system of power supply, needle
To the power phase of power supply, power phase is detected, obtains second source signal, that is, the second source signal and electricity
The power phase in source is corresponding.
As an alternative embodiment, determining the wiring of power supply with the presence or absence of failure according to power supply signal, comprising: root
Judge whether power supply system meets the first preset condition according to the first power supply signal, and power phase is judged according to second source signal
Whether second preset condition is met；If judge that power supply system does not meet the first preset condition according to the first power supply signal, and/
Or judge that power phase does not meet the second preset condition according to second source signal, determining the wiring of power supply, there are failures；Such as
Fruit judges that power supply system meets the first preset condition according to the first power supply signal, and judges power supply according to second source signal
Phase sequence meets the second preset condition, determines that the wiring of power supply is normal.
When the wiring for determining power supply according to power supply signal whether there is failure, power supply system is judged according to the first power supply signal
Whether formula meets the first preset condition, which can be the power supply system of power supply when the wiring of power supply is normal
Corresponding normal power source signal, for example, normal voltage signal, and judge whether power phase accords with according to second source signal
The second preset condition is closed, which can be for when the wiring of power supply is normal, the power phase of power supply be corresponding just
Normal power supply signal, for example, normal voltage signal.If judging that the power supply system of power supply is not met according to the first power supply signal
First preset condition, and/or judge that the power phase of power supply does not meet the second preset condition according to second source signal,
That is, if the power supply system of power supply does not meet the first preset condition and/or the power phase of power supply does not meet the second preset condition,
Being assured that the wiring of power supply, there are failures；If judging that power supply system meets the first default item according to the first power supply signal
Part, and judge that power phase meets the second preset condition according to second source signal, so that it may determine that the wiring of power supply is normal,
To realize determine whether the power supply system of power supply and power phase are wrong according to the power supply signal of power supply, and then according to power supply
Signal determines that the wiring of power supply with the presence or absence of failure, improves the reliability of power supply wiring identification.
It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions
It is executed in computer system, although also, logical order is shown in flow charts, and it in some cases, can be with not
The sequence being same as herein executes shown or described step.
Embodiment 3
Technical solution of the present invention is illustrated below with reference to preferred embodiment.
Fig. 3 is a kind of schematic diagram of wiring faults type identification device according to an embodiment of the present invention.As shown in figure 3, should
Wiring faults types of devices includes: power supply 1, detection module 10, processor 2, voice alerting unit 3, unit equipment 4, contactor
K1, contactor K2, contactor K3, contactor K4 and contactor K5.
Power supply 1 is external power supply, is the power source that unit equipment 4 is used, the main supply lines of power supply 1 and unit equipment 4
Between connected using contactor K1, contactor K2, contactor K3, contactor K4 with contactor K5, contactor K1, contactor K2, connect
Tentaculum K3, contactor K4 and contactor K5 are the normally open contactors being serially connected on the power supply line of power supply 1, are exported by processor 2
Control signal controlled.Under the original state of system electrification, unit equipment 4 and external power supply 1 are to disconnect.
Detection module 10 is serially connected in contactor K1, contactor K2, contactor K3, contactor K4 and the front end contactor K5 electricity
On the line of source, the parameters such as power supply system and power phase for detecting power supply 1, and will test signal and be transferred to processor 2.Place
Reason device 2 handles detection signal, obtains processing result after receiving detection signal, for example, processor 2 is to receiving
Data carry out inter-process operation, and whether the power supply system for analyzing power supply 1 wrong with power phase, obtains processing and ties
Fruit.Processor 2 controls the on-off of normally open contactor according to processing result.Optionally, processor 2 exports height according to processing result
Level signal forms the driving signal of the control coil of contactor after overdrive circuit is converted, and with control contactor K1, connects
The closing or opening of tentaculum K2, contactor K3, contactor K4 and contactor K5.
If the power supply system of power supply 1 and power phase are wrong, processor 2 is according to the encoded signal of internal error information
It controls voice alerting unit 3 and carries out failure casting, remind wiring personnel to change the wiring of power supply 1, while not exporting any signal
To contactor K1, contactor K2, contactor K3, contactor K4 and contactor K5, contactor K1, contactor K2, contactor K3, connect
Tentaculum K4 and contactor K5 will also maintain original normally open, and power supply 1 and unit equipment 4 are in off-state, wherein voice mentions
The information for showing that unit 3 is broadcasted can be reversed etc. to several threads and several threads in detail, to keep wiring person quickly and easily right
The wiring of power supply 1 is adjusted.If the wiring of power supply 1 is all gone well, processor 2 ifs, can control the contactor on power supply line
K1, contactor K2, contactor K3, contactor K4 and contactor K5 control coil obtain electric, contactor K1, contactor K2, contact
The contact of device K3, contactor K4 and contactor K5 are attracted closure, power for unit equipment 4.
Whether the embodiment is normal by the wiring for first detecting power supply 1, rear to be closed contactor K1, contactor K2, contactor
The mode of K3, contactor K4 and contactor K5 are the power supply of unit equipment 4, securely and reliably, carry out voice using voice alerting unit 3
The mode of casting checks the wiring issue of power supply 1, more intuitively, conveniently.
In order to guarantee unit equipment 4 run safety, the initial state of unit equipment 4 be it is cold, only detecting
When the wiring for the testing result instruction power supply 1 that module 10 exports is normal, it just can control unit equipment 4 and power on, thus the implementation
The contactor of example is the normally open contactor of normally opened contact, such as contactor K1, K2, K3, K4 and K5；If normally open contactor replaced
For normally closed contactor, then when the route of system once connects, unit equipment 4 will be powered on directly, not have enough time also detecting power supply 1
Whether wiring is normal, and unit equipment 4 is practical in the wiring of power supply 1 just have been burnt out or exploded in the case where be failure.
In addition, break down in system using normally open contactor or explosion time on fire, system can lose control function,
Normally open contactor and disconnects the contact of contactor automatically due to the forfeiture of the control function of system, to cut off unit equipment 4
It is continuous between power supply 1；If normally open contactor is replaced with normally closed contactor, once unit equipment 4 occurred it is hot
Fried situation, then contactor can maintain normally off always, and 1 continued power of power supply causes accident more serious.The thus implementation
The contactor of example is normally open contactor.
Optionally, the selection mode of the normally open contactor quantity of the embodiment is determined by the power supply standard of unit equipment
Fixed, it is a few line systems specified in the specification of unit equipment, then the quantity of contactor is just preferentially chosen several.Since China is big
Power air-conditioner set and equipment generally use three-phase five-wire mode, therefore the embodiment uses 5 normally open contactors.
Technical solution of the present invention is illustrated below with reference to another preferred embodiment.
In wiring faults type identification device, detection module acquire first power supply L1, L2, L3, L4 and L5 this 5 with
The voltage of line over the ground, by collected voltage transmission to processor.3 lines that voltage is 220V are determined as 3 fire by processor
Line, this 3 firewire needs connect on corresponding terminal, and otherwise the wiring of power supply is broken down, and voice alerting unit will alarm.Again
Acquire the sine voltage signal on this 3 firewires respectively by sensor, processor match line voltage signal carries out d-q transformation meter
It calculates, obtains the phase sequence of 3 firewires.If the phase sequence of 3 firewires is negative phase-sequence, need through voice alerting unit to 3 fire
Appoint both threads to be exchanged in line, the phase sequence of power supply can be adjusted to positive sequence.
Optionally, other than the firewire of detection power supply, it is also necessary to detect the zero curve and ground wire of power supply.Due to zero curve and ground
Line links together from power supply end of registering one's residence, therefore when zero curve and ground wire are reversed, although the short-term operation to unit equipment will not
It causes to seriously affect, but there is the security risk of person electric shock.Optionally, the embodiment being internally provided in unit equipment
The resistance of 3 different resistance values constitutes three-phase imbalance load by the resistance of 3 different resistance values, is detecting that 3 firewires are normal
Afterwards, it is closed the corresponding contactor of 3 firewires, firewire is connected on the three-phase imbalance load inside unit equipment, detects 3 respectively
Voltage of the root firewire to other both threads.The line that three-phase voltage balances is determined as ground wire, the line of imbalance of three-phase voltage is true
It is set to zero curve, 3 firewires, 1 zero curve, 1 ground wire can be detected respectively in this way.
It should be noted that the three-phase five-wire mode AC power source occasion that the application range of the embodiment of the present invention is not limited to, together
Sample is suitable for the AC power source and DC power supply of other standards, no longer illustrates one by one herein.
The embodiment is detected by the power supply system to power supply, power phase, obtains detection data, to detection data
Calculation process is carried out, controls the on-off of contactor on main current supply circuit, only in the normal situation of wiring of detection power supply
It is closed contactor, guarantees the power supply system of access unit equipment and the safety and reliability of power phase, thus realization pair
The safe power supply of unit equipment, and increase voice prompting, to be carried out accurately, intuitively with wiring faults of the speech form to power supply
Ground casting, facilitates user to check wiring issue according to voice prompting, improves the effect of the identification certainty of power supply wiring, avoid
Traditional protection method reliability is low, not intuitive, indefinite, inconvenient problem is positioned to fault message.
Embodiment 4
The embodiment of the invention also provides a kind of identification devices of power supply wiring.It should be noted that the electricity of the embodiment
The identification device of source wiring can be used for executing the recognition methods of the power supply wiring of the embodiment of the present invention.
Fig. 4 is a kind of schematic diagram of the identification device of power supply wiring according to an embodiment of the present invention.As shown in figure 4, the electricity
The identification device of source wiring includes: detection unit 40, determination unit 50 and control unit 60.
Detection unit 40, for detecting the power supply signal of power supply, wherein power supply passes through normally open contactor and unit equipment phase
Connection.
Determination unit 50, for being determined the wiring of power supply with the presence or absence of failure according to power supply signal.
Control unit 60, in the normal situation of wiring, control normally open contactor closure to be powered to unit equipment.
Optionally, unit is broadcasted, for connecing after the wiring for determining power supply according to power supply signal is with the presence or absence of failure
Line is deposited in the case of a fault, broadcasting prompt information, wherein there are failures for prompting the wiring of power supply for prompt information.
Optionally, casting unit 50 includes: the first broadcasting module, for depositing in the case of a fault in wiring, broadcasts language
Sound prompt information, wherein speech prompt information is for there are failures with the wiring of speech form prompt power supply.
Optionally, the first broadcasting module includes: casting submodule, for broadcasting the first speech prompt information, wherein first
Speech prompt information is for prompting the wiring of power supply there are the fault type of failure；And/or the second speech prompt information of casting,
In, the second speech prompt information is for prompting to be adjusted the wiring of the power supply there are failure according to predetermined registration operation.
Optionally, detection unit 40 includes: first detection module and the second detection module.Wherein, first detection module is used
It is detected in the power supply system to power supply, obtains the first power supply signal；Second detection module is used for the power phase to power supply
It is detected, obtains second source signal.
Optionally it is determined that unit 50 includes: judgment module, the first determining module and the second determining module.Wherein, judge mould
Block for judging whether power supply system meets the first preset condition according to the first power supply signal, and is sentenced according to second source signal
Whether disconnected power phase meets the second preset condition；First determining module is for judging power supply system according to the first power supply signal
Formula does not meet the first preset condition, and/or when judging that power phase does not meet the second preset condition according to second source signal,
Determining the wiring of power supply, there are failures；Second determining module, for judging that power supply system meets according to the first power supply signal
First preset condition, and when judging that power phase meets the second preset condition according to second source signal, determine connecing for power supply
Line is normal.
The embodiment detects the power supply signal of power supply by detection unit 40, wherein power supply passes through normally open contactor and machine
Group equipment is connected, and the wiring for determining power supply according to power supply signal by determination unit 50 passes through control list with the presence or absence of failure
Member 60, in the normal situation of wiring, control normally open contactor closure to be powered to unit equipment, due to detecting electricity
After source signal, calculation process is carried out to power supply signal, determine the wiring of power supply with the presence or absence of failure, and the wiring of power supply just
It in the case where often, is closed by contactor to unit equipment and is powered, improved the reliability of power supply wiring identification, solve power supply
The low problem of the identification certainty of wiring, and then achieved the effect that the identification certainty for improving power supply wiring.
Embodiment 5
The embodiment of the invention also provides a kind of identifying systems of power supply wiring.The identifying system of the power supply wiring includes:
Detection module, for detecting the power supply signal of power supply, wherein power supply is connected by normally open contactor with unit equipment；Storage
Medium, for storing program, wherein program executes following processing step for the data exported from detection module at runtime:
Determine the wiring of power supply with the presence or absence of failure according to power supply signal；In the normal situation of wiring, control normally open contactor closure,
It powers to unit equipment.
Embodiment 6
The embodiment of the invention also provides a kind of identifying systems of power supply wiring.The identifying system of the power supply wiring includes:
Detection module, for detecting the power supply signal of power supply, wherein power supply is connected by normally open contactor with unit equipment；Processing
Device, processor run program, wherein execute following processing step: root for the data exported from detection module when program is run
Determine the wiring of power supply with the presence or absence of failure according to power supply signal；In the normal situation of wiring, control normally open contactor closure, to
Unit equipment power supply.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
Be performed by computing device in the storage device, perhaps they are fabricated to each integrated circuit modules or by they
In multiple modules or step be fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific
Hardware and software combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (13)
1. a kind of recognition methods of power supply wiring characterized by comprising
Detect the power supply signal of power supply, wherein the power supply is connected by normally open contactor with unit equipment, and the unit is set
Standby initial state is unpowered state；
Determine the wiring of the power supply with the presence or absence of failure according to the power supply signal；
In the normal situation of wiring, the normally open contactor closure, the power supply of Xiang Suoshu unit equipment are controlled；
The power supply signal for detecting power supply includes: to detect to the power supply system of the power supply, obtains the first power supply signal；To institute
The power phase for stating power supply is detected, and second source signal is obtained；The wiring of the power supply is determined according to the power supply signal
With the presence or absence of failure, comprising: judge whether the power supply system meets the first preset condition according to first power supply signal, and
Judge whether the power phase meets the second preset condition according to the second source signal；If according to first power supply
Signal judges that the power supply system does not meet first preset condition, and/or is judged according to the second source signal
The power phase does not meet second preset condition, and determining the wiring of the power supply, there are failures；If according to described
One power supply signal judges that the power supply system meets first preset condition, and is judged according to the second source signal
The power phase meets second preset condition, determines that the wiring of the power supply is normal.
2. the method according to claim 1, wherein in the wiring for determining the power supply according to the power supply signal
After failure, the method also includes:
It is deposited in the case of a fault in wiring, broadcasting prompt information, wherein the prompt information is for prompting connecing for the power supply
There are failures for line.
3. according to the method described in claim 2, broadcasting the prompt it is characterized in that, deposit in the case of a fault in wiring
Information, comprising:
It is deposited in the case of a fault in wiring, broadcasts speech prompt information, wherein the speech prompt information is used for voice shape
Formula prompts the wiring of the power supply, and there are failures.
4. according to the method described in claim 3, it is characterized in that, broadcasting the speech prompt information, comprising:
Broadcast the first speech prompt information, wherein first speech prompt information is for prompting the wiring of the power supply to exist
The fault type of failure；And/or
Broadcast the second speech prompt information, wherein second speech prompt information is for prompting according to predetermined registration operation to presence
The wiring of the power supply of failure is adjusted.
5. a kind of identification device of power supply wiring characterized by comprising
Detection unit, for detecting the power supply signal of power supply, wherein the power supply is connected by normally open contactor with unit equipment
It connects, the initial state of the unit equipment is unpowered state；
Determination unit, for being determined the wiring of the power supply with the presence or absence of failure according to the power supply signal；
Control unit, in the normal situation of wiring, controlling the normally open contactor closure, Xiang Suoshu unit equipment is supplied
Electricity；
Wherein, the detection unit includes: first detection module and the second detection module；Wherein, the first detection module is used
It is detected in the power supply system to the power supply, obtains the first power supply signal；Second detection module is used for the electricity
The power phase in source is detected, and second source signal is obtained；The determination unit includes: judgment module, the first determining module
With the second determining module, the judgment module, for judging whether the power supply system meets according to first power supply signal
First preset condition, and judge whether the power phase meets the second preset condition according to the second source signal；It is described
First determining module is for judging that the power supply system does not meet the described first default item according to first power supply signal
Part, and/or when judging that the power phase does not meet second preset condition according to the second source signal, determine institute
Stating the wiring of power supply, there are failures；Second determining module, for judging the electricity according to first power supply signal
Source standard meets first preset condition, and judges that the power phase meets described according to the second source signal
When two preset conditions, determine that the wiring of the power supply is normal.
6. device according to claim 5, which is characterized in that described device further include:
Broadcast unit, in the wiring for determining the power supply according to the power supply signal with the presence or absence of after failure, in wiring
It deposits in the case of a fault, broadcasting prompt information, wherein the prompt information is used to prompt the wiring of the power supply to there is event
Barrier.
7. a kind of identifying system of power supply wiring characterized by comprising
Detection module, for detecting the power supply signal of power supply, wherein the power supply is connected by normally open contactor with unit equipment
It connects, the initial state of the unit equipment is unpowered state, and the detection module is also used to the power supply system to the power supply
It is detected, obtains the first power supply signal, the power phase of the power supply is detected, obtain second source signal；
Processing module is connected with the detection module, for determined according to the power supply signal power supply wiring whether
There are failures, determine the wiring of the power supply with the presence or absence of failure according to the power supply signal, comprising: according to first power supply
Signal judges whether the power supply system meets the first preset condition, and judges the power supply phase according to the second source signal
Whether sequence meets the second preset condition；If judging that the power supply system does not meet described according to first power supply signal
One preset condition, and/or judge that the power phase does not meet second preset condition according to the second source signal,
Determining the wiring of the power supply, there are failures；If it is described to judge that the power supply system meets according to first power supply signal
First preset condition, and judge that the power phase meets second preset condition according to the second source signal, really
The wiring of the fixed power supply is normal；
Control module is connected with the processing module, for controlling the normally open contactor and closing in the normal situation of wiring
It closes, the power supply of Xiang Suoshu unit equipment.
8. system according to claim 7, which is characterized in that the system also includes:
Broadcasting module is connected with the processing module, for being deposited in the case of a fault in wiring, broadcasting prompt information,
In, there are failures for prompting the wiring of the power supply for the prompt information.
9. system according to claim 7, which is characterized in that
The processing module includes: output module, in the normal situation of wiring, output to control signal；
The control module includes: driving circuit, is connected with the output module, for receiving the control signal, and root
The normally open contactor closure is controlled according to the control signal.
10. a kind of identifying system of power supply wiring characterized by comprising
Detection module, for detecting the power supply signal of power supply, wherein the power supply is connected by normally open contactor with unit equipment
It connects, the initial state of the unit equipment is unpowered state, and the power supply signal for detecting power supply includes: electricity to the power supply
Source standard is detected, and the first power supply signal is obtained；The power phase of the power supply is detected, second source letter is obtained
Number；
Storage medium, for storing program, wherein described program at runtime holds the data exported from the detection module
The following processing step of row: the wiring for determining the power supply according to the power supply signal is believed with the presence or absence of failure according to the power supply
Number determine that the wiring of the power supply whether there is failure, comprising: judge that the power supply system is according to first power supply signal
It is no to meet the first preset condition, and judge whether the power phase meets the second default item according to the second source signal
Part；If judge that the power supply system does not meet first preset condition according to first power supply signal, and/or according to
The second source signal judges that the power phase does not meet second preset condition, determines that the wiring of the power supply is deposited
In failure；If judge that the power supply system meets first preset condition according to first power supply signal, and according to
The second source signal judges that the power phase meets second preset condition, is determining the wiring of the power supply just
Often；In the normal situation of wiring, the normally open contactor closure, the power supply of Xiang Suoshu unit equipment are controlled.
11. a kind of identifying system of power supply wiring characterized by comprising
Detection module, for detecting the power supply signal of power supply, the power supply signal for detecting power supply includes: power supply system to the power supply
Formula is detected, and the first power supply signal is obtained；The power phase of the power supply is detected, second source signal is obtained；Its
In, the power supply is connected by normally open contactor with unit equipment, and the initial state of the unit equipment is to be not powered on shape
State；
Processor, the processor run program, wherein data when described program is run for exporting from the detection module
It executes following processing step: determining that the wiring of the power supply whether there is failure according to the power supply signal, according to the power supply
Signal determines the wiring of the power supply with the presence or absence of failure, comprising: judges the power supply system according to first power supply signal
Whether meet the first preset condition, and judges whether the power phase meets the second default item according to the second source signal
Part；If judge that the power supply system does not meet first preset condition according to first power supply signal, and/or according to
The second source signal judges that the power phase does not meet second preset condition, determines that the wiring of the power supply is deposited
In failure；If judge that the power supply system meets first preset condition according to first power supply signal, and according to
The second source signal judges that the power phase meets second preset condition, is determining the wiring of the power supply just
Often；In the normal situation of wiring, the normally open contactor closure, the power supply of Xiang Suoshu unit equipment are controlled.
12. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein run in described program
When control the storage medium where equipment perform claim require any one of 1 to 4 described in power supply wiring recognition methods.
13. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Benefit require any one of 1 to 4 described in power supply wiring recognition methods.
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| CN201710159424.6A CN107132448B (en) | 2017-03-16 | 2017-03-16 | Recognition methods, device and system and the storage medium and processor of power supply wiring |
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| CN107884734B (en) * | 2017-10-24 | 2023-04-28 | 广东电网有限责任公司茂名供电局 | Phase sequence table testing arrangement |
| CN109655757B (en) * | 2018-12-26 | 2020-07-03 | 漳州科华技术有限责任公司 | UPS system detection method and system |
| CN111430993A (en) * | 2020-03-06 | 2020-07-17 | 北京金茂绿建科技有限公司 | Signal system and method and device for switching contacts |
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| CN2426241Y (en) * | 2000-05-16 | 2001-04-04 | 北京自动化技术研究院 | Three-phass loss and counter phase sequence motor protector |
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