CN103076574B - Automatic detection circuit and automatic detection device for life of emergency lamp - Google Patents
Automatic detection circuit and automatic detection device for life of emergency lamp Download PDFInfo
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- CN103076574B CN103076574B CN201110327177.9A CN201110327177A CN103076574B CN 103076574 B CN103076574 B CN 103076574B CN 201110327177 A CN201110327177 A CN 201110327177A CN 103076574 B CN103076574 B CN 103076574B
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Abstract
The invention is applicable to the field of lamp detection and provides an automatic detection circuit and an automatic detection device for the life of an emergency lamp. The automatic detection circuit comprises a counting unit and a switching control unit, wherein two power ends of the counting unit are connected with an alternating-current power supply, the counting unit is used for recording the number of switching between the power output of the alternating-current power supply and the power output of a direct-current power supply; and a power supply end of the switching control unit is connected with a public end of the counting unit, double switching ends of the switching control unit are connected with double counting ends of the counting unit, and the switching control unit is used for automatically switching the power output of the alternating-current power supply and the power output of the direct-current power supply. According to the invention, the switching control unit is used to set test time to control the power switching between the direct-current power supply and the alternating-current power supply of the emergency lamp, and the counting unit is used to carry out switching counting, so that the automatic detection control over the service life of the emergency lamp is realized, and the detection accuracy and the detection efficiency are improved.
Description
Technical field
The invention belongs to light fixture detection field, particularly relate to a kind of automatic detection circuit and emergency light life-span automatic detection device.
Background technology
First current emergence lighting lamp will detect through strict serviceable life before dispatching from the factory, namely emergence lighting lamp is detected in the conversion times of AC-to DC and time, record corresponding parameter as the important technology index in this emergency luminaire serviceable life.
But present stage usually adopts and manually carries out switch to emergence lighting lamp, recording parameters, serious waste labour, and make a fault unavoidably due to manual operation, affect testing result, detection efficiency is very low.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of automatic detection circuit, is intended to solve current emergency luminaire detection mode in serviceable life data inaccurate, the problem that detection efficiency is low.
The embodiment of the present invention is achieved in that a kind of automatic detection circuit, and described automatic detection circuit comprises:
Counting unit, two power ends of described counting unit are connected with AC power, and the normal-closed end of counting unit is connected with the live wire of AC power, for recording the number of times switching AC power and DC power supply and export;
Switch control unit, the power end of described switch control unit is connected with the common port of described counting unit, two switch terminal of described switch control unit is connected with the double-counting end of described counting unit, the first DC control end and first of described switch control unit exchanges control end and is connected with electrical appliance to be measured respectively, second DC control end of described switch control unit is connected with described direct supply, second of described switch control unit exchanges control end and is connected with described AC power, and the power supply for automatically switch AC power and direct supply exports;
Described switch control unit comprises:
First timing control module, the power end of described first timing control module is the power end of described switch control unit, the earth terminal of described first timing control module is connected with the zero line of described AC power, the Chang Kaiduan of described first timing control module is connected, for arranging interval time with the power end of described first timing control module;
Second timing control module, the power end of described second timing control module is connected with the common port of described first timing control module, the earth terminal of described second timing control module is connected with the zero line of described AC power, the common port of described second timing control module is connected with the power end of described second timing control module, exchanges conduction time for arranging;
3rd timing control module, the power end of described 3rd timing control module is connected with the Chang Kaiduan of described second timing control module, the earth terminal of described 3rd timing control module is connected with the zero line of described AC power, the Chang Kaiduan of described 3rd timing control module is connected with the dual reset end of described first timing control module respectively with common port, for arranging direct current conduction time;
First switch module, the current input terminal of described first switch module is connected with the common port of described first timing control module, the current output terminal of described first switch module is connected with the zero line of described AC power, first exit of described first switch module is the first DC control end of described switch control unit, second exit of described first switch module is the second DC control end of described switch control unit, for controlling DC power supply when conducting;
Second switch module, the current input terminal of described second switch module is connected with the normal-closed end of described second timing control module, the current output terminal of described second switch module is connected with the zero line of described AC power, first exit of described second switch module is that first of described switch control unit exchanges control end, second exit of described second switch module is that second of described switch control unit exchanges control end, the three terminal of described second switch module and the 4th exit are two switch terminal of described switch control unit, for controlling ac power supply when conducting.
Another object of the embodiment of the present invention is to provide a kind of emergency light life-span automatic detection device adopting above-mentioned automatic detection circuit.
In embodiments of the present invention, by switch control unit, test duration control is set to the power switching between emergency light direct supply and AC power, and carry out toggle count by counting unit, achieve the Automatic Detection and Control to emergency light serviceable life, improve accuracy in detection and detection efficiency.
Accompanying drawing explanation
The structural drawing of the automatic detection circuit that Fig. 1 provides for one embodiment of the invention;
The exemplary circuit structural drawing of the automatic detection circuit that Fig. 2 provides for one embodiment of the invention;
The test period schematic diagram of the automatic detection circuit that Fig. 3 provides for one embodiment of the invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The embodiment of the present invention arranges test duration control to the power switching between emergency light direct supply and AC power by switch control unit, and carry out toggle count by counting unit, achieve the Automatic Detection and Control to emergency light serviceable life, improve accuracy in detection and detection efficiency.
Fig. 1 shows the structure of the automatic detection circuit that the embodiment of the present invention provides, and for convenience of explanation, illustrate only part related to the present invention.
This automatic detection circuit can be applied in the emergency light life-span automatic detection device of various series and detect various types of emergency luminaire.
The automatic detection circuit provided as one embodiment of the invention comprises:
Counting unit 1, two power end V of this counting unit 1
cCbe connected with the live wire L of AC power and zero line N respectively with GND, the normal-closed end c of counting unit 1 is connected with the live wire L of AC power, for recording the number of times switching AC power and DC power supply and export;
Switch control unit 2, the power end V of this switch control unit 2
cCbe connected with the common port b of counting unit 1, two switch terminal Ctl1 of switch control unit 2, Ctl2 respectively with the double-counting end T1 of counting unit 1, T2 connects, first DC control end DC1 of switch control unit 2 and first exchanges control end AC1 and is connected with the direct current supply positive pole of electrical appliance 3 to be measured and the first Alternating Current Power Supply end respectively, the direct current supply negative pole of electrical appliance 3 to be measured is connected with the negative pole of direct supply, second Alternating Current Power Supply end of electrical appliance 3 to be measured is connected with the zero line N of AC power, second DC control end DC2 of switch control unit 2 is connected with the positive pole of direct supply, second of switch control unit 2 exchanges control end AC2 and is connected with the live wire L of AC power, power supply for automatically switch AC power and direct supply exports.
Below in conjunction with specific embodiment, realization of the present invention is described in detail.
Fig. 2 illustrates the exemplary circuit structure of the emergency light life-span automatic detection circuit that the embodiment of the present invention provides, and for convenience of explanation, illustrate only part related to the present invention.
In embodiments of the present invention, counting unit 1 can adopt counter to realize, two power ends of this counter are two power ends of counting unit 1, the common port of counter is the common port of counting unit 1, the normal-closed end of counter is the normal-closed end of counting unit 1, and the double-counting end of counter is the double-counting end of counting unit 1.
Switch control unit 2 comprises:
First timing control module 21, the power end V of this first timing control module 21
cCfor the power end of switch control unit 2, the earth terminal GND of the first timing control module 21 is connected with the zero line N of AC power, the Chang Kaiduan a of the first timing control module 21 and power end V of the first timing control module 21
cCconnect, for arranging interval time;
Second timing control module 22, the power end V of this second timing control module 22
cCbe connected with the common port b of the first timing control module 21, the earth terminal GND of the second timing control module 22 is connected with the zero line N of AC power, the common port b of the second timing control module 22 and power end V of the second timing control module 22
cCconnecting, exchanging conduction time for arranging;
The power end V of the 3rd timing control module the 23, three timing control module 23
cCbe connected with the Chang Kaiduan b of the second timing control module 22, the earth terminal GND of the 3rd timing control module 23 is connected with the zero line N of AC power, the Chang Kaiduan a of the 3rd timing control module 23 and common port b respectively with the dual reset end R of the first timing control module 21
1, R
2connect, for arranging direct current conduction time;
First switch module K1, the current input terminal of this first switch module K1 is connected with the common port b of the first timing control module 21, and the current output terminal of the first switch module K1 is connected with the zero line N of AC power, the first exit O of the first switch module K1
11for the first DC control end DC1 of switch control unit 2, the second exit O of the first switch module K1
12for the second DC control end DC2 of switch control unit 2, for controlling DC power supply when conducting;
The current input terminal of second switch module K2, this second switch module K2 is connected with the normal-closed end b of the second timing control module 22, and the current output terminal of second switch module K2 is connected with the zero line N of AC power, the first exit O of second switch module K2
21for first of switch control unit 2 exchanges control end AC1, the second exit O of second switch module K2
22for second of switch control unit 2 exchanges control end AC2, the three terminal O of second switch module K2
23with the 4th exit O
24for two switch terminal of switch control unit 2, for controlling ac power supply when conducting.
As one embodiment of the invention, the first timing control module 21, second timing control module 22, the 3rd timing control module 23 all can adopt the time relay to realize.
As one embodiment of the invention, the first switch module K1 and second switch module K2 all can adopt electromagnetic relay to realize.
In embodiments of the present invention, after counter powers on, by normal-closed end, power supply is inputed to the first timing control module 21, now the first timing control module 21 starts timework, the timing value of this first timing control module 21 is set to t1, after the t1 time interval (see Fig. 3), the normal-closed end of the first timing control module 21 disconnects, Chang Kaiduan and common port close, first switch module K1 energising adhesive conducting, controlling direct supply is that electrical appliance 3 is powered, simultaneously, second timing control module 22 also powers on beginning timing, its Chang Kaiduan controls AC power by second switch module K2 adhesive conducting and powers to electrical appliance 3, and counter 1 is counted (T1), now emergency luminaire obtains direct current and alternating current normally works simultaneously, the timing value of this second timing control module 22 is set to t2, namely after the t2 time powered by direct supply and AC power simultaneously, the Chang Kaiduan of the second timing control module 22 closes, AC power stops powering to electrical appliance 3, now light fixture only obtains direct current, start emergency, 3rd timing control module 23 works on power simultaneously, the timing value of the 3rd timing control module 23 is set to T3, namely after the DC power supply t3 time, the Chang Kaiduan of the 3rd timing control module 23 closes, first timing control module 21 is resetted, now, complete a switch test cycle, first timing control module 21 re-starts the circulation of next power switching after resetting.
In embodiments of the present invention, by the time relay, test duration control is set to the power switching between emergency light direct supply and AC power, and by counter, accumulated counts is carried out to switching times, achieve the Automatic Detection and Control to emergency light serviceable life, substantially increase accuracy in detection and detection efficiency, and this circuit structure is simple, cost is low.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. an automatic detection circuit, is characterized in that, described automatic detection circuit comprises:
Counting unit, two power ends of described counting unit are connected with AC power, and the normal-closed end of counting unit is connected with the live wire of AC power, for recording the number of times switching AC power and DC power supply and export;
Switch control unit, the power end of described switch control unit is connected with the common port of described counting unit, two switch terminal of described switch control unit is connected with the double-counting end of described counting unit, the first DC control end and first of described switch control unit exchanges control end and is connected with electrical appliance to be measured respectively, second DC control end of described switch control unit is connected with described direct supply, second of described switch control unit exchanges control end and is connected with described AC power, and the power supply for automatically switch AC power and direct supply exports;
Described switch control unit comprises:
First timing control module, the power end of described first timing control module is the power end of described switch control unit, the earth terminal of described first timing control module is connected with the zero line of described AC power, the Chang Kaiduan of described first timing control module is connected, for arranging interval time with the power end of described first timing control module;
Second timing control module, the power end of described second timing control module is connected with the common port of described first timing control module, the earth terminal of described second timing control module is connected with the zero line of described AC power, the common port of described second timing control module is connected with the power end of described second timing control module, exchanges conduction time for arranging;
3rd timing control module, the power end of described 3rd timing control module is connected with the Chang Kaiduan of described second timing control module, the earth terminal of described 3rd timing control module is connected with the zero line of described AC power, the Chang Kaiduan of described 3rd timing control module is connected with the dual reset end of described first timing control module respectively with common port, for arranging direct current conduction time;
First switch module, the current input terminal of described first switch module is connected with the common port of described first timing control module, the current output terminal of described first switch module is connected with the zero line of described AC power, first exit of described first switch module is the first DC control end of described switch control unit, second exit of described first switch module is the second DC control end of described switch control unit, for controlling DC power supply when conducting;
Second switch module, the current input terminal of described second switch module is connected with the normal-closed end of described second timing control module, the current output terminal of described second switch module is connected with the zero line of described AC power, first exit of described second switch module is that first of described switch control unit exchanges control end, second exit of described second switch module is that second of described switch control unit exchanges control end, the three terminal of described second switch module and the 4th exit are two switch terminal of described switch control unit, for controlling ac power supply when conducting.
2. automatic detection circuit as claimed in claim 1, it is characterized in that, described counting unit is counter, the power end of described counter and earth terminal are two power ends of described counting unit, the common port of described counter is the common port of described counting unit, the normal-closed end of described counter is connected with the power end of described counter, and the double-counting end of described counter is the double-counting end of described counting unit.
3. automatic detection circuit as claimed in claim 1, it is characterized in that, described first timing control module, the second timing control module, the 3rd timing control module are the time relay.
4. automatic detection circuit as claimed in claim 1, it is characterized in that, described first switch module and second switch module are electromagnetic relay.
5. an emergency light life-span automatic detection device, is characterized in that, the automatic detection circuit of described emergency light life-span automatic detection device is the automatic detection circuit as described in any one of Claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110327177.9A CN103076574B (en) | 2011-10-25 | 2011-10-25 | Automatic detection circuit and automatic detection device for life of emergency lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110327177.9A CN103076574B (en) | 2011-10-25 | 2011-10-25 | Automatic detection circuit and automatic detection device for life of emergency lamp |
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| Publication Number | Publication Date |
|---|---|
| CN103076574A CN103076574A (en) | 2013-05-01 |
| CN103076574B true CN103076574B (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110327177.9A Active CN103076574B (en) | 2011-10-25 | 2011-10-25 | Automatic detection circuit and automatic detection device for life of emergency lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104076299B (en) * | 2014-06-11 | 2017-01-11 | 华南理工大学 | Fault detection device and method for ship navigation lights |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2227390Y (en) * | 1995-02-21 | 1996-05-15 | 北京力恒技贸中心 | Emergency lamp with accumulator automatic charging and detecting function |
| US5574423A (en) * | 1995-03-10 | 1996-11-12 | Hubbell Incorporated | Self-diagnostic circuit for emergency lamphead |
| CN201599702U (en) * | 2010-01-11 | 2010-10-06 | 梅志国 | Emergency lighting system |
-
2011
- 2011-10-25 CN CN201110327177.9A patent/CN103076574B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2227390Y (en) * | 1995-02-21 | 1996-05-15 | 北京力恒技贸中心 | Emergency lamp with accumulator automatic charging and detecting function |
| US5574423A (en) * | 1995-03-10 | 1996-11-12 | Hubbell Incorporated | Self-diagnostic circuit for emergency lamphead |
| CN201599702U (en) * | 2010-01-11 | 2010-10-06 | 梅志国 | Emergency lighting system |
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| CN103076574A (en) | 2013-05-01 |
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