CN105353300A - AC contactor detection method and system - Google Patents

AC contactor detection method and system Download PDF

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Publication number
CN105353300A
CN105353300A CN201510697288.7A CN201510697288A CN105353300A CN 105353300 A CN105353300 A CN 105353300A CN 201510697288 A CN201510697288 A CN 201510697288A CN 105353300 A CN105353300 A CN 105353300A
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China
Prior art keywords
contactor
counter
detected
count results
threshold value
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CN201510697288.7A
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Chinese (zh)
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CN105353300B (en
Inventor
陈富裕
王后军
梁绍康
李成焕
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201510697288.7A priority Critical patent/CN105353300B/en
Publication of CN105353300A publication Critical patent/CN105353300A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327Testing of circuit interrupters, switches or circuit-breakers

Abstract

The invention discloses an AC contactor detection method and system. The method and system alternately control the on/off of a controllable switch. When the controllable switch is switched off, an electromagnetic coil of a to-be-detected AC contactor is electrified and outputs a pulse. In a time period when the controllable switch is off and the pulse number of pulse signals outputted by the AC contactor is monitored too be greater than one, a second counter adds one. When the number of alternate switching-off times of the controllable switch reaches a first preset threshold value, an output assembly is driven based on the counting results of the second counter is used for prompting detection result prompt information of the to-be-detected AC contactor, thereby achieving the automatic detection of the to-be-detected AC contactor. A tester does not need to manually control the off of the electromagnetic coil of the AC contactor, and also does not need to judge whether the AC contactor is qualified or not through listening to the absorption sound of the AC contactor, thereby improving the testing efficiency, and reducing the testing errors.

Description

A.C. contactor detection method and system
Technical field
The present invention relates to testing techniques of equipment field, in particular, relate to a kind of A.C. contactor detection method and system.
Background technology
At present, test man is when whether the minimum pick-up voltage detecting A.C. contactor is qualified, need the solenoid power on/off 10 times of Non-follow control A.C. contactor, in each galvanization, it is qualified that test man needs to listen the adhesive sound of A.C. contactor to judge whether by people's ear.Test with said method, not only testing efficiency is low, and requires that test man keeps notice high concentration for a long time, the hearing of easy damage measure person, and makes test man produce anxiety, affects its physical and mental health, makes test error larger.
Summary of the invention
In view of this, this application provides a kind of A.C. contactor detection method and system, to improve testing efficiency, reduce test error.
For achieving the above object, the invention provides following technical scheme:
A kind of A.C. contactor detection method, comprising:
Control gate-controlled switch closes, electric to make the solenoid of A.C. contactor to be detected obtain; Wherein, the first end of described gate-controlled switch is connected with power supply, and the second end of described gate-controlled switch is connected with the solenoid of A.C. contactor to be detected;
Monitor the pulse number of described A.C. contactor output pulse signal to be detected;
When the duration that described gate-controlled switch is closed reaches the first preset duration, control described gate-controlled switch to disconnect, first counter adds 1, and if in described first preset duration the pulse number of described A.C. contactor output pulse signal to be detected be greater than 1, the second counter adds 1;
When the duration that described gate-controlled switch disconnects reaches the second preset duration, if the count results of described first counter is less than the first predetermined threshold value, then returns and perform the closed step of described control gate-controlled switch; If the count results of described first counter equals described first predetermined threshold value, then the count results driver output assembly according to described second counter exports information, and described information is for pointing out the testing result of described A.C. contactor to be detected.
Said method, preferably, the described count results driver output assembly according to described second counter exports information and comprises:
If the count results of described second counter is greater than the second predetermined threshold value, the first LED in driver output assembly is lighted, and the minimum pick-up voltage characterizing described A.C. contactor to be detected when described first LED is lighted is qualified;
If the count results of described second counter is less than or equal to described second predetermined threshold value, the second LED in driver output assembly is lighted, and the minimum pick-up voltage characterizing described A.C. contactor to be detected when described second LED is lighted is defective.
Said method, preferably, the described count results according to described second counter exports information and comprises:
If the count results of described second counter is greater than the second predetermined threshold value, driver output assembly exports the first voice, and the minimum pick-up voltage that described first voice characterize described A.C. contactor to be detected is qualified;
If the count results of described second counter is less than or equal to described second predetermined threshold value, driver output assembly exports the second voice, and the minimum pick-up voltage that described second voice characterize described A.C. contactor to be detected is defective.
Said method, preferably, the described count results driver output assembly according to described second counter exports information and comprises:
If the count results of described second counter is greater than the second predetermined threshold value, driver output assembly shows the first information, and the minimum pick-up voltage that described first information characterizes described A.C. contactor to be detected is qualified;
If the count results of described second counter is less than or equal to described second predetermined threshold value, driver output assembly shows the second information, and the minimum pick-up voltage that described second information characterizes described A.C. contactor to be detected is defective.
A kind of A.C. contactor detection system, comprising:
Gate-controlled switch;
By the power supply that gate-controlled switch is connected with the solenoid of A.C. contactor to be detected;
The processor be connected with described gate-controlled switch with the main contacts of described A.C. contactor to be detected respectively;
The output precision be connected with described processor;
Described processor is used for, and controls described gate-controlled switch and closes, and obtains electric to make the solenoid of described A.C. contactor to be detected; Monitor the pulse number of described A.C. contactor output pulse signal to be detected; When the duration that described gate-controlled switch is closed reaches the first preset duration, control described gate-controlled switch to disconnect, first counter adds 1, and if in described first preset duration the pulse number of described A.C. contactor output pulse signal to be detected be greater than 1, the second counter adds 1; When the duration that described gate-controlled switch disconnects reaches the second preset duration, if the count results of described first counter is less than the first predetermined threshold value, then returns and perform the closed step of described control gate-controlled switch; If the count results of described first counter equals described first predetermined threshold value, then the count results according to described second counter drives described output precision to export information, and described information is for pointing out the testing result of described A.C. contactor to be detected.
Said system, preferably, described gate-controlled switch is relay.
Said system, preferably, described output precision comprises: LED group;
For drive according to the count results of described second counter described output precision export information processor specifically for,
If the count results of described second counter is greater than the second predetermined threshold value, drive the first LED in described LED group to light, the minimum pick-up voltage characterizing described A.C. contactor to be detected when described first LED is lighted is qualified;
If the count results of described second counter is less than or equal to described second predetermined threshold value, drive the second LED in described LED group to light, the minimum pick-up voltage characterizing described A.C. contactor to be detected when described second LED is lighted is defective.
Said system, preferably, described first LED is different from the glow color of described second LED.
Said system, preferably, the loudspeaker that described output precision comprises speech processing module and is connected with described speech processing module;
For drive according to the count results of described second counter described output precision export information processor specifically for,
If the count results of described second counter is greater than the second predetermined threshold value, drive described output precision to export the first voice, the minimum pick-up voltage that described first voice characterize described A.C. contactor to be detected is qualified;
If the count results of described second counter is less than or equal to described second predetermined threshold value, drive described output precision to export the second voice, the minimum pick-up voltage that described second voice characterize described A.C. contactor to be detected is defective.
Said system, preferably, described output precision comprises: display screen;
For drive according to the count results of described second counter described output precision export information processor specifically for,
If the count results of described second counter is greater than the second predetermined threshold value, drive described output precision to show the first information, the minimum pick-up voltage that described first information characterizes described A.C. contactor to be detected is qualified;
If the count results of described second counter is less than or equal to described second predetermined threshold value, drive described output precision to show the second information, the minimum pick-up voltage that described second information characterizes described A.C. contactor to be detected is defective.
Known via above-mentioned technical scheme, a kind of A.C. contactor detection method and system disclosed in the embodiment of the present invention, alternately control the closed of gate-controlled switch and disconnect, when gate-controlled switch closes, the solenoid of A.C. contactor to be detected obtains electric and exports pulse, within the time period that gate-controlled switch is closed, monitor the pulse number of pulse signal that A.C. contactor exports when being greater than 1, second counter adds 1, when the number of times that gate-controlled switch is alternately closed disconnection reaches the first predetermined threshold value, count results driver output assembly based on the second counter exports the testing result information for pointing out A.C. contactor to be detected, thus realize automatically detecting A.C. contactor, and no longer need the electromagnetic coil power on/off of test man's Non-follow control A.C. contactor, test man is not needed to listen the adhesive sound of A.C. contactor to judge whether by people's ear qualified yet, improve testing efficiency, reduce test error.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
A kind of structural representation of the A.C. contactor detection system that Fig. 1 provides for the embodiment of the present application;
A kind of concrete structure schematic diagram of the A.C. contactor detection system that Fig. 2 provides for the embodiment of the present application;
The another kind of concrete structure schematic diagram of the A.C. contactor detection system that Fig. 3 provides for the embodiment of the present application;
A kind of realization flow figure of the A.C. contactor detection method that Fig. 4 provides for the embodiment of the present application;
The another kind of realization flow figure of the A.C. contactor detection method that Fig. 5 provides for the embodiment of the present application.
Term " first ", " second ", " the 3rd " " 4th " etc. (if existence) in instructions and claims and above-mentioned accompanying drawing are for distinguishing similar part, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so that the embodiment of the application described herein can be implemented with the order except illustrated here.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, a kind of structural representation of the A.C. contactor detection system that Fig. 1 provides for the embodiment of the present invention, can comprise:
Gate-controlled switch 11, power supply 12, processor 13 and output precision 14; Wherein,
Power supply 12 can be connected by the solenoid of gate-controlled switch 11 with A.C. contactor to be detected
Processor 13 is connected with output precision 14 with the main contacts of described A.C. contactor to be detected, gate-controlled switch 11 respectively;
Power supply 12 is for providing the minimum pick-up voltage of described A.C. contactor to be detected.
Processor 13 specifically for,
Control gate-controlled switch 11 to close, obtain electric to make the solenoid of A.C. contactor to be detected be connected with power supply 12;
While control gate-controlled switch 11 is closed, triggers the first timer starts timing;
In the process that gate-controlled switch 11 is closed, monitor the pulse number of A.C. contactor output pulse signal to be detected;
When the duration that gate-controlled switch is closed reaches the first preset duration (namely the timing result of the first timer is the first preset duration), control described gate-controlled switch 11 to disconnect, first counter adds 1, if and the pulse number of described A.C. contactor output pulse signal to be detected is greater than 1 in described first preset duration, then the second counter adds 1; And trigger the second timer and start timing;
If the pulse number of described A.C. contactor output pulse signal to be detected is greater than 1 in described first preset duration, illustrate that repeatedly bouncing appears in the main contacts of A.C. contactor to be detected, this attracting process of A.C. contactor to be detected is defective.
When gate-controlled switch 11 disconnects, the solenoid dead electricity of A.C. contactor; The solenoid that the count results of the first counter characterizes A.C. contactor to be detected obtains the number of times of electric dead electricity; The count results of the second counter characterizes the underproof number of times of A.C. contactor to be detected.
When the duration that gate-controlled switch 11 disconnects reaches the second preset duration (namely the timing result of the second timer is the second preset duration), if the count results of the first counter is less than the first predetermined threshold value, then controls gate-controlled switch 11 and again close; If the count results of the first counter equals the first predetermined threshold value, then the count results driver output assembly 14 according to the second counter exports information, and this information is for pointing out the testing result of A.C. contactor to be detected.
Optionally, the first predetermined threshold value can be 10.Certainly, in the embodiment of the present invention, be not limited to 10, can adjust accordingly according to actual testing requirement.
A kind of A.C. contactor detection system that the embodiment of the present invention provides, processor alternately controls the closed of gate-controlled switch and disconnects, when gate-controlled switch closes, the solenoid of A.C. contactor to be detected obtains electric and exports pulse, within the time period that gate-controlled switch is closed, monitor the pulse number of pulse signal that A.C. contactor exports when being greater than 1, second counter adds 1, when the number of times that gate-controlled switch is alternately closed disconnection reaches the first predetermined threshold value, count results driver output assembly based on the second counter exports the testing result information for pointing out A.C. contactor to be detected, thus realize automatically detecting A.C. contactor, and no longer need the electromagnetic coil power on/off of test man's Non-follow control A.C. contactor, test man is not needed to listen the adhesive sound of A.C. contactor to judge whether by people's ear qualified yet, improve testing efficiency, reduce test error.
Optionally, gate-controlled switch 11 can be relay.This relay can be normal-open type relay, or, closed type relay, or conversion hysteria relay.
Optionally, output precision 14 can comprise: LED group, and namely output precision 14 can comprise at least two LED.
Optionally, specifically may be used for for the processor exporting information according to the count results driver output assembly 14 of the second counter,
If the count results of the second counter is greater than the second predetermined threshold value, drive the first LED in described LED group to light, the minimum pick-up voltage characterizing described A.C. contactor to be detected when described first LED is lighted is qualified;
Optionally, the second predetermined threshold value can be 2.Certainly, in the embodiment of the present invention, be not limited to 2, can adjust accordingly according to actual testing requirement.
The count results of the second counter is greater than the second predetermined threshold value, illustrates that the minimum pick-up voltage of A.C. contactor to be detected is qualified.
If the count results of described second counter is less than or equal to described second predetermined threshold value, drive the second LED in described LED group to light, the minimum pick-up voltage characterizing described A.C. contactor to be detected when described second LED is lighted is defective.
The count results of the second counter is less than or equal to the second predetermined threshold value, illustrates that the minimum pick-up voltage of A.C. contactor to be detected is defective.
In the embodiment of the present invention, characterize the different testing result of A.C. contactor to be detected by different LED.
Optionally, determining testing result to further facilitate detection person, different testing results can be distinguished by the LED that glow color is different.Such as, light by the LED of green the minimum pick-up voltage characterizing A.C. contactor to be detected qualified; The minimum pick-up voltage characterizing A.C. contactor to be detected is lighted defective by the LED of redness.
Optionally, output precision 14 loudspeaker that can comprise speech processing module and be connected with speech processing module;
Optionally,
For the processor that exports information according to the count results driver output assembly 14 of the second counter specifically for,
If the count results of the second counter is greater than the second predetermined threshold value, driver output assembly exports the first voice, and the minimum pick-up voltage that described first voice characterize described A.C. contactor to be detected is qualified;
Be specially and drive voice output module to export the first sound signal to loudspeaker, loudspeaker is made to export first voice corresponding with the first sound signal, these first voice can be " qualified ", or " test passes ", as long as it is qualified that test man can be made to identify the minimum pick-up voltage of described A.C. contactor to be detected.
If the count results of described second counter is less than or equal to described second predetermined threshold value, drive described output precision to export the second voice, the minimum pick-up voltage that described second voice characterize described A.C. contactor to be detected is defective.
Be specially and drive voice output module to export the second sound signal to loudspeaker, loudspeaker is made to export second voice corresponding with the second sound signal, these second voice can be " defective ", or " test failure ", as long as it is defective that test man can be made to identify the minimum pick-up voltage of described A.C. contactor to be detected.
Optionally, output precision 14 also can comprise: display screen.
Optionally, specifically may be used for for the processor exporting information according to the count results driver output assembly of the second counter,
If the count results of the second counter is greater than the second predetermined threshold value, driver output assembly 14 (i.e. display screen) shows the first information, and the minimum pick-up voltage that the first information characterizes A.C. contactor to be detected is qualified;
This first information can be text message, as " qualified ", or " test passes " etc., also can be picture information, as smiling face etc.
If the count results of the second counter is less than or equal to the second predetermined threshold value, driver output assembly shows the second information, and the minimum pick-up voltage that the second information characterizes A.C. contactor to be detected is defective.
This second information can be text message, as " defective ", or " test failure " etc., also can be picture information, as face etc. of crying.
Optionally, any one combination of the mode of above-mentioned several output information can export simultaneously, such as, while lighting the first LED, exports voice " qualified "; Or, while lighting the first LED, show text " qualified " by display screen; Or, while output voice " qualified ", show text " qualified " by display screen; Or, while lighting the first LED, namely export voice " qualified ", also show text " qualified " by display screen.
The A.C. contactor detection method that the embodiment of the present invention provides, can point out testing result by driver output assembly from vision and/or the multiple mode of the sense of hearing, reduce test error further.
As shown in Figure 2, a kind of concrete structure schematic diagram of the A.C. contactor detection system provided for the embodiment of the present invention.Processor MCU can be 51 single-chip minimum systems; Relay J 1 is for controlling the on/off of power supply VV (output voltage is minimum pick-up voltage) and tested A.C. contactor; LED D1 is red LED lamp, and the A.C. contactor of pointing out test man tested when LED D1 lights is qualified; LED D2 is green or blue led lamp, and the A.C. contactor of pointing out test man tested when LED D2 lights is defective.
As shown in Figure 3, the another kind of concrete structure schematic diagram of the A.C. contactor detection system provided for the embodiment of the present invention.Processor MCU can be 51 single-chip minimum systems; Relay J 1 is for controlling the on/off of power supply VV (output voltage is minimum pick-up voltage) and tested A.C. contactor; Different from embodiment illustrated in fig. 2, in the present embodiment, output precision is made up of voice module Vo and loudspeaker Speaker.
Corresponding with system embodiment, the embodiment of the present invention also provides a kind of A.C. contactor detection method.The A.C. contactor detection method that the embodiment of the present invention provides can comprise:
Steps A: control gate-controlled switch and close, electric to make the solenoid of A.C. contactor to be detected obtain; Wherein, the first end of described gate-controlled switch is connected with power supply, and the second end of described gate-controlled switch is connected with the solenoid of A.C. contactor to be detected;
The output voltage of this power supply is the minimum pick-up voltage of A.C. contactor to be detected.
Step B: the pulse number of monitoring described A.C. contactor output pulse signal to be detected;
Step C: when the duration that described gate-controlled switch is closed reaches the first preset duration, control described gate-controlled switch to disconnect, first counter adds 1, and if in described first preset duration the pulse number of described A.C. contactor output pulse signal to be detected be greater than 1, the second counter adds 1;
If the pulse number of A.C. contactor output pulse signal to be detected is greater than 1 in the first preset duration, illustrate that repeatedly bouncing appears in the main contacts of A.C. contactor to be detected, this attracting process of A.C. contactor to be detected is defective.
When gate-controlled switch disconnects, the solenoid dead electricity of A.C. contactor; The solenoid that the count results of the first counter characterizes A.C. contactor to be detected obtains the number of times of electric dead electricity; The count results of the second counter characterizes the underproof number of times of A.C. contactor to be detected.
Step D: when the duration that described gate-controlled switch disconnects reaches the second preset duration, if the count results of described first counter is less than the first predetermined threshold value, then returns and performs the closed step of described control gate-controlled switch; If the count results of described first counter equals described first predetermined threshold value, then the count results driver output assembly according to described second counter exports information, and described information is for pointing out the testing result of described A.C. contactor to be detected.
Optionally, the first predetermined threshold value can be 10.Certainly, in the embodiment of the present invention, be not limited to 10, can adjust accordingly according to actual testing requirement.
The A.C. contactor detection method that the embodiment of the present invention provides, alternately control the closed of gate-controlled switch and disconnect, when gate-controlled switch closes, the solenoid of A.C. contactor to be detected obtains electric and exports pulse, within the time period that gate-controlled switch is closed, monitor the pulse number of pulse signal that A.C. contactor exports when being greater than 1, second counter adds 1, when the number of times that gate-controlled switch is alternately closed disconnection reaches the first predetermined threshold value, count results driver output assembly based on the second counter exports the testing result information for pointing out A.C. contactor to be detected, thus realize automatically detecting A.C. contactor, and no longer need the electromagnetic coil power on/off of test man's Non-follow control A.C. contactor, test man is not needed to listen the adhesive sound of A.C. contactor to judge whether by people's ear qualified yet, improve testing efficiency, reduce test error.
Optionally, a kind of implementation according to the count results driver output assembly output information of the second counter can be:
If the count results of the second counter is greater than the second predetermined threshold value, the first LED in driver output assembly is lighted, and the minimum pick-up voltage characterizing A.C. contactor to be detected when the first LED is lighted is qualified;
Optionally, the second predetermined threshold value can be 2.Certainly, in the embodiment of the present invention, be not limited to 2, can adjust accordingly according to actual testing requirement.
The count results of the second counter is greater than the second predetermined threshold value, illustrates that the minimum pick-up voltage of A.C. contactor to be detected is qualified.
If the count results of the second counter is less than or equal to the second predetermined threshold value, the second LED in driver output assembly is lighted, and the minimum pick-up voltage characterizing A.C. contactor to be detected when the second LED is lighted is defective.
The count results of the second counter is less than or equal to the second predetermined threshold value, illustrates that the minimum pick-up voltage of A.C. contactor to be detected is defective.
In the embodiment of the present invention, characterize the different testing result of A.C. contactor to be detected by different LED.
Optionally, determining testing result to further facilitate detection person, different testing results can be distinguished by the LED that glow color is different.Such as, light by the LED of green the minimum pick-up voltage characterizing A.C. contactor to be detected qualified; The minimum pick-up voltage characterizing A.C. contactor to be detected is lighted defective by the LED of redness.
Optionally, the another kind of implementation according to the count results output information of the second counter can be:
If the count results of the second counter is greater than the second predetermined threshold value, driver output assembly exports the first voice, and the minimum pick-up voltage that the first voice characterize A.C. contactor to be detected is qualified;
These first voice can be " qualified ", or " test passes ", as long as it is qualified that test man can be made to identify the minimum pick-up voltage of described A.C. contactor to be detected.
If the count results of the second counter is less than or equal to the second predetermined threshold value, driver output assembly exports the second voice, and the minimum pick-up voltage that the second voice characterize A.C. contactor to be detected is defective.
These second voice can be " defective ", or " test failure ", as long as it is defective that test man can be made to identify the minimum pick-up voltage of described A.C. contactor to be detected.
Optionally, another implementation according to the count results driver output assembly output information of described second counter can be:
If the count results of the second counter is greater than the second predetermined threshold value, driver output assembly shows the first information, and the minimum pick-up voltage that the first information characterizes A.C. contactor to be detected is qualified;
This first information can be text message, as " qualified ".Or " test passes " etc., also can be picture information, as smiling face etc.
If the count results of the second counter is less than or equal to the second predetermined threshold value, driver output assembly shows the second information, and the minimum pick-up voltage that the second information characterizes A.C. contactor to be detected is defective.
This second information can be text message, as " defective ", or " test failure " etc., also can be picture information, as face etc. of crying.
Optionally, any one combination of the mode of above-mentioned several output information can export simultaneously, such as, while lighting the first LED, exports voice " qualified "; Or, while lighting the first LED, show text " qualified " by display screen; Or, while output voice " qualified ", show text " qualified " by display screen; Or, while lighting the first LED, namely export voice " qualified ", also show text " qualified " by display screen.
The A.C. contactor detection method that the embodiment of the present invention provides, can point out testing result by driver output assembly from vision and/or the multiple mode of the sense of hearing, reduce test error further.
Refer to Fig. 4, a kind of realization flow figure of the A.C. contactor detection method that Fig. 4 provides for the embodiment of the present invention, can comprise:
Step S41: parameter initialization, comprising: solenoid obtains electric dead electricity number of times i, pulse number j and test failure number of times h, is all initialized as 0.
Step S42: control gate-controlled switch and close, the solenoid of A.C. contactor to be tested is obtained electric, starts timing 5s simultaneously;
Step S43: the number detecting the high level pulse that A.C. contactor exports, and assignment is to j;
Step S44: judge whether timing length reaches 5s, if not, then return step S43; If so, then step S45 is performed;
Step S45: control gate-controlled switch and disconnect, make A.C. contactor dead electricity to be detected; I value is added 1; If j>1, h value is added 1, and perform step S46 after time delay 5s
Step S46: judge whether i is less than 10, if so, then returns step S42; If not, then step S47 is entered;
Step S47: judge whether h is greater than 2, if so, then performs step S48, if not, then performs step S49;
Step S48: the LED of some shiny red;
Step S49: the LED of some bright green.
Refer to Fig. 5, the another kind of realization flow figure of the A.C. contactor detection method that Fig. 5 provides for the embodiment of the present invention, can comprise:
Step S51: parameter initialization, comprising: solenoid obtains electric dead electricity number of times i, pulse number j and test failure number of times h, is all initialized as 0.
Step S52: control gate-controlled switch and close, the solenoid of A.C. contactor to be tested is obtained electric, starts timing 5s simultaneously;
Step S53: the number detecting the high level pulse that A.C. contactor exports, and assignment is to j;
Step S54: judge whether timing length reaches 5s, if not, then return step S53; If so, then step S55 is performed;
Step S55: control gate-controlled switch and disconnect, make A.C. contactor dead electricity to be detected; I value is added 1; If j>1, h value is added 1, and perform step S56 after time delay 5s
Step S56: judge whether i is less than 10, if so, then returns step S52; If not, then step S57 is entered;
Step S57: judge whether h is greater than 2, if so, then performs step S58, if not, then performs step S59;
Step S58: export voice " test failure ";
Step S59: export voice " test passes ".
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For device disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
The software module that the method described in conjunction with embodiment disclosed herein or the step of algorithm can directly use hardware, processor to perform, or the combination of the two is implemented.Software module can be placed in the storage medium of other form any known in random access memory (RAM), internal memory, ROM (read-only memory) (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. an A.C. contactor detection method, is characterized in that, comprising:
Control gate-controlled switch closes, electric to make the solenoid of A.C. contactor to be detected obtain; Wherein, the first end of described gate-controlled switch is connected with power supply, and the second end of described gate-controlled switch is connected with the solenoid of A.C. contactor to be detected;
Monitor the pulse number of described A.C. contactor output pulse signal to be detected;
When the duration that described gate-controlled switch is closed reaches the first preset duration, control described gate-controlled switch to disconnect, first counter adds 1, and if in described first preset duration the pulse number of described A.C. contactor output pulse signal to be detected be greater than 1, the second counter adds 1;
When the duration that described gate-controlled switch disconnects reaches the second preset duration, if the count results of described first counter is less than the first predetermined threshold value, then returns and perform the closed step of described control gate-controlled switch; If the count results of described first counter equals described first predetermined threshold value, then the count results driver output assembly according to described second counter exports information, and described information is for pointing out the testing result of described A.C. contactor to be detected.
2. method according to claim 1, is characterized in that, the described count results driver output assembly according to described second counter exports information and comprises:
If the count results of described second counter is greater than the second predetermined threshold value, the first LED in driver output assembly is lighted, and the minimum pick-up voltage characterizing described A.C. contactor to be detected when described first LED is lighted is qualified;
If the count results of described second counter is less than or equal to described second predetermined threshold value, the second LED in driver output assembly is lighted, and the minimum pick-up voltage characterizing described A.C. contactor to be detected when described second LED is lighted is defective.
3. method according to claim 1, is characterized in that, the described count results according to described second counter exports information and comprises:
If the count results of described second counter is greater than the second predetermined threshold value, driver output assembly exports the first voice, and the minimum pick-up voltage that described first voice characterize described A.C. contactor to be detected is qualified;
If the count results of described second counter is less than or equal to described second predetermined threshold value, driver output assembly exports the second voice, and the minimum pick-up voltage that described second voice characterize described A.C. contactor to be detected is defective.
4. method according to claim 1, is characterized in that, the described count results driver output assembly according to described second counter exports information and comprises:
If the count results of described second counter is greater than the second predetermined threshold value, driver output assembly shows the first information, and the minimum pick-up voltage that described first information characterizes described A.C. contactor to be detected is qualified;
If the count results of described second counter is less than or equal to described second predetermined threshold value, driver output assembly shows the second information, and the minimum pick-up voltage that described second information characterizes described A.C. contactor to be detected is defective.
5. an A.C. contactor detection system, is characterized in that, comprising:
Gate-controlled switch;
By the power supply that gate-controlled switch is connected with the solenoid of A.C. contactor to be detected;
The processor be connected with described gate-controlled switch with the main contacts of described A.C. contactor to be detected respectively;
The output precision be connected with described processor;
Described processor is used for, and controls described gate-controlled switch and closes, and obtains electric to make the solenoid of described A.C. contactor to be detected; Monitor the pulse number of described A.C. contactor output pulse signal to be detected; When the duration that described gate-controlled switch is closed reaches the first preset duration, control described gate-controlled switch to disconnect, first counter adds 1, and if in described first preset duration the pulse number of described A.C. contactor output pulse signal to be detected be greater than 1, the second counter adds 1; When the duration that described gate-controlled switch disconnects reaches the second preset duration, if the count results of described first counter is less than the first predetermined threshold value, then returns and perform the closed step of described control gate-controlled switch; If the count results of described first counter equals described first predetermined threshold value, then the count results according to described second counter drives described output precision to export information, and described information is for pointing out the testing result of described A.C. contactor to be detected.
6. system according to claim 5, is characterized in that, described gate-controlled switch is relay.
7. system according to claim 5, is characterized in that, described output precision comprises: LED group;
For drive according to the count results of described second counter described output precision export information processor specifically for,
If the count results of described second counter is greater than the second predetermined threshold value, drive the first LED in described LED group to light, the minimum pick-up voltage characterizing described A.C. contactor to be detected when described first LED is lighted is qualified;
If the count results of described second counter is less than or equal to described second predetermined threshold value, drive the second LED in described LED group to light, the minimum pick-up voltage characterizing described A.C. contactor to be detected when described second LED is lighted is defective.
8. system according to claim 7, is characterized in that, described first LED is different from the glow color of described second LED.
9. system according to claim 5, is characterized in that, the loudspeaker that described output precision comprises speech processing module and is connected with described speech processing module;
For drive according to the count results of described second counter described output precision export information processor specifically for,
If the count results of described second counter is greater than the second predetermined threshold value, drive described output precision to export the first voice, the minimum pick-up voltage that described first voice characterize described A.C. contactor to be detected is qualified;
If the count results of described second counter is less than or equal to described second predetermined threshold value, drive described output precision to export the second voice, the minimum pick-up voltage that described second voice characterize described A.C. contactor to be detected is defective.
10. system according to claim 5, is characterized in that, described output precision comprises: display screen;
For drive according to the count results of described second counter described output precision export information processor specifically for,
If the count results of described second counter is greater than the second predetermined threshold value, drive described output precision to show the first information, the minimum pick-up voltage that described first information characterizes described A.C. contactor to be detected is qualified;
If the count results of described second counter is less than or equal to described second predetermined threshold value, drive described output precision to show the second information, the minimum pick-up voltage that described second information characterizes described A.C. contactor to be detected is defective.
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