CN108761355A - A kind of trouble light detection circuit and system - Google Patents
A kind of trouble light detection circuit and system Download PDFInfo
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- CN108761355A CN108761355A CN201810332252.2A CN201810332252A CN108761355A CN 108761355 A CN108761355 A CN 108761355A CN 201810332252 A CN201810332252 A CN 201810332252A CN 108761355 A CN108761355 A CN 108761355A
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- relay
- operational amplifier
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- lamps
- lanterns
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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
- G01R31/44—Testing lamps
Abstract
A kind of trouble light detection circuit of proposition of the embodiment of the present invention and system, are related to technical field of lamps.Trouble light detection circuit includes processor, constant-current source, reference power supply, operational amplifier module, lamp module, switch module, resistive module and relay module, switch module when lamp module is off for being connected, operational amplifier module is used for according to the on off operating mode of lamp module and the conducting state output status signal of switch module, processor is used for the connection status according to status signal control relay, so that the unspoiled light source normal operation in lamp module.Trouble light detection circuit provided by the invention and system are without human intervention, more convenient and the advantages of will not make troubles the normal operation on airport.
Description
Technical field
The present invention relates to technical field of lamps, in particular to a kind of trouble light detection circuit and system.
Background technology
Currently, as the improvement of people's living standards, more and more people have more selections in trip, and aircraft by
It is welcomed by the people in its fireballing feature, therefore Aviation Industry obtains huge development, meanwhile, the illumination on airport
It can emphasis of people's attention.
Since current airport lamps and lanterns circuit uses airport constant-current source as power supply, so all airport lamps and lanterns are all
It is used in series, each lamps and lanterns match an isolating transformer.Overwhelming majority airport lamps and lanterns are all not have trouble light detection at present
Circuit, after the damage of airport lamps and lanterns, can only leave isolating transformer open circuit, this will produce a prodigious induction reactance, if damage
Airport lamps and lanterns accounting reach certain value after, airport constant-current source can not be worked due to the huge induction reactance of isolating transformer.I.e.
When part damage occur in the lamps and lanterns on airport, the lamps and lanterns that another portion does not break down can not also use, and give the normal fortune on airport
Row is made troubles.
It is the emphasis of those skilled in the art's concern in view of this, how to solve the above problems.
Invention content
In view of this, the purpose of the present invention is to provide a kind of trouble light detection circuit, to solve to work as machine in the prior art
The lamps and lanterns of part when breaking down, the case where other lamps and lanterns not broken down can not also use.
Another object of the present invention is to provide a kind of trouble light detecting systems, to solve in the prior art when the one of airport
When partial lamps and lanterns break down, the case where other lamps and lanterns not broken down can not also use.
To achieve the goals above, technical solution used in the embodiment of the present invention is as follows：
On the one hand, an embodiment of the present invention provides a kind of trouble light detection circuit, the trouble light detection circuit includes place
Device, constant-current source, reference power supply, operational amplifier module, lamp module, switch module, resistive module and relay module are managed,
The processor is electrically connected with the operational amplifier module, the relay module respectively, the constant-current source respectively with it is described
Switch module, the relay module and lamp module electrical connection, the relay are electrically connected with the lamp module,
The switch module is electrically connected with the operational amplifier module, and the reference power supply is electrically connected with the operational amplifier module
It connects, the resistive module is electrically connected with the lamp module, and the switch module, which is used to be in the lamp module, disconnects shape
It is connected when state, the operational amplifier module is used for according to the on off operating mode of the lamp module and leading for the switch module
Logical state output status signal, the processor are used to control the connection status of the relay according to the status signal, with
Make the unspoiled lamps and lanterns normal operation in the lamp module.
Further, the operational amplifier module includes the first operational amplifier, second operational amplifier, third operation
Amplifier and four-operational amplifier, the lamp module include with the second lamps and lanterns, the switch module including the first lamps and lanterns
First is silicon-controlled, second silicon-controlled, the first triggering pipe and the second triggering pipe, the relay module include the first relay with
Second relay, the resistive module include first resistor, second resistance, 3rd resistor and the 4th resistance, first fortune
Calculate amplifier, the second operational amplifier, the third operational amplifier and the four-operational amplifier with it is described
The reverse input end of reference power supply is electrically connected, first operational amplifier, the second operational amplifier, the third operation
The output end of amplifier and the four-operational amplifier is electrically connected with the processor, and the processor respectively with institute
The first relay, second relay electrical connection are stated, the constant-current source, first lamps and lanterns and the first resistor are successively
Be grounded after series connection, the constant-current source, second lamps and lanterns and the second resistance are grounded after being also sequentially connected in series, described first after
Electric appliance is electrically connected with first lamps and lanterns, second relay be electrically connected with second lamps and lanterns and first relay with
The second relay electrical connection, the one end being connect with first lamps and lanterns and first operation amplifier of the first resistor
The in-phase input end of device is electrically connected, the one end being connect with second lamps and lanterns and second operation amplifier of the second resistance
The in-phase input end of device is electrically connected, and first diac is silicon-controlled in parallel with described first, and first triggering two
Pole pipe is electrically connected with one end of the noninverting input of the third operational amplifier, the 3rd resistor respectively, the third electricity
The other end of resistance is grounded, and described silicon-controlled one end is also grounded, and second diac is silicon-controlled in parallel with described second,
And second diac is electric with one end of the noninverting input of the four-operational amplifier, the 4th resistance respectively
Connection, the other end ground connection of the 4th resistance, described silicon-controlled one end is also grounded.
Further, first relay includes single-pole double-throw relay, the hilted broadsword with second relay
Double-throw relay includes normally open end, normal-closed end and movable end, the normally open end of first relay and normal-closed end respectively with institute
State the both ends electrical connection of the first lamps and lanterns, the normally open end of second relay and normal-closed end both ends with second lamps and lanterns respectively
Electrical connection, the movable end of first relay are electrically connected with the movable end of second relay.
Further, first operational amplifier, the second operational amplifier, the third operational amplifier and
The four-operational amplifier is integrated on a chip.
Further, described first it is silicon-controlled with described second it is silicon-controlled be bidirectional triode thyristor.
Further, first lamps and lanterns include light source or sensor with second lamps and lanterns.
Further, the light source includes halogen light source and LED light source.
Further, the current range of the constant-current source is in 2.8~6.6A.
Further, the processor includes digital filter.
On the other hand, the embodiment of the present invention additionally provides a kind of trouble light detecting system, the trouble light detecting system packet
Include multiple trouble light detection circuits, and the lamp module series connection of multiple fault detection circuits.
Compared with the prior art, the invention has the advantages that：
Provided by the invention a kind of trouble light detection circuit and system, the trouble light detection circuit include processor, perseverance
Stream source, reference power supply, operational amplifier module, lamp module, switch module, resistive module and relay module, due to working as
When lamp module breaks down, the status signal of operational amplifier module output and the conducting state of switch module can change,
So by judging that the status signal of operational amplifier module output and the conducting state of switch module, processor may determine that
Go out whether lamp module breaks down, the connection status of relay is then controlled, to make the unspoiled light in lamp module
Source normal operation.On the one hand, since processor can be by judging whether lamp module breaks down, so can be automatically real
The detection of existing trouble light, it is without human intervention, more convenient.On the other hand, due to detect lamp module break down after,
Processor can also control the connection status of relay, to make the unspoiled light source normal operation in lamp module, so
In actual use, a lamps and lanterns damage, but other lamps and lanterns also can more long running, will not be to the normal operation band on airport
It is inconvenient to come.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows the module diagram for the trouble light detection circuit that one embodiment of the present of invention provides.
Fig. 2 shows the circuit diagrams for the trouble light detection circuit that one embodiment of the present of invention provides.
Fig. 3 shows the schematic diagram for the first relay and the second relay that one embodiment of the present of invention provides.
Fig. 4 shows the module diagram for the trouble light detecting system that one embodiment of the present of invention provides.
Icon：100- trouble light detection circuits；110- constant-current sources；120- processors；130- operational amplifier modules；131-
First operational amplifier；132- second operational amplifiers；133- third operational amplifiers；134- four-operational amplifiers；140-
Relay module；The first relays of 141-；The normally open ends 1411-；1412- normal-closed ends；1413- movable ends；The second relays of 142-；
150- reference power supplies；160- switch modules；161- first is silicon-controlled；162- second is silicon-controlled；The triggering pipes of 163- first；164-
Two triggering pipes；170- lamp modules；The first lamps and lanterns of 171-；The second lamps and lanterns of 172-；180- resistive modules；181- first resistors；
182- second resistances；183- 3rd resistors；The 4th resistance of 184-；200- trouble light detecting systems.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
The every other embodiment obtained under the premise of going out creative work, shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.Meanwhile the present invention's
In description, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " connected ", " connection " shall be understood in a broad sense,
It for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connection, can also be electricity
Connection；It can be directly connected, can also can be indirectly connected through an intermediary the connection inside two elements.For
For those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.It ties below
Attached drawing is closed, is elaborated to some embodiments of the present invention.In the absence of conflict, following embodiment and embodiment
In feature can be combined with each other.
Fig. 1 is please referred to, a kind of trouble light detection circuit 100 provided by the embodiment of the present invention, trouble light detection
Circuit 100 includes processor 120, constant-current source 110, reference power supply 150, operational amplifier module 130, lamp module 170, switch
Module 160, resistive module 180 and relay module 140, processor 120 respectively with operational amplifier module 130, relay
Module 140 is electrically connected, and constant-current source 110 is electrically connected with switch module 160, relay module 140 and lamp module 170 respectively,
Relay is electrically connected with lamp module 170, and switch module 160 is electrically connected with operational amplifier module 130, reference power supply 150 with
Operational amplifier module 130 is electrically connected, and resistive module 180 is electrically connected with lamp module 170, and switch module 160 is used in lamps and lanterns
Module 170 is connected when being off, operational amplifier module 130 be used for according to lamp module 170 on off operating mode and
The conducting state output status signal of switch module 160, processor 120 are used for the connection shape according to status signal control relay
State, so that the unspoiled lamps and lanterns normal operation in lamp module 170.
Specifically, referring to Fig. 2, in the present embodiment, operational amplifier module 130 include the first operational amplifier 131,
Second operational amplifier 132, third operational amplifier 133 and four-operational amplifier 134, lamp module 170 include first
Lamps and lanterns 171 and the second lamps and lanterns 172, switch module 160 include the first silicon-controlled 161, second silicon-controlled 162, first triggering pipe 163
And second triggering pipe 164, relay module 140 include the first relay 141 and the second relay 142, resistive module 180 packet
Include first resistor 181, second resistance 182,3rd resistor 183 and the 4th resistance 184, the first operational amplifier 131, second fortune
Calculate the reverse input end of amplifier 132, third operational amplifier 133 and four-operational amplifier 134 with reference power supply 150
Electrical connection, the first operational amplifier 131, second operational amplifier 132, third operational amplifier 133 and the 4th operation amplifier
The output end of device 134 is electrically connected with processor 120, and processor 120 respectively with the first relay 141, the second relay 142
Electrical connection, constant-current source 110, the first lamps and lanterns 171 and first resistor 181 are grounded after being sequentially connected in series, constant-current source 110, the second lamps and lanterns
172 and second resistance 182 be also sequentially connected in series after be grounded, the first relay 141 is electrically connected with the first lamps and lanterns 171, the second relay
Device 142 is electrically connected with the second lamps and lanterns 172 and the first relay 141 is electrically connected with the second relay 142, first resistor 181 with
One end of first lamps and lanterns 171 connection is electrically connected with the in-phase input end of the first operational amplifier 131, second resistance 182 with the
One end of two lamps and lanterns 172 connection is electrically connected with the in-phase input end of second operational amplifier 132, the first diac and first
Silicon-controlled 161 is in parallel, and the first diac respectively with the noninverting input of third operational amplifier 133,3rd resistor 183
One end electrical connection, the other end ground connection of 3rd resistor 183, silicon-controlled one end is also grounded, the second diac and second
Silicon-controlled 162 is in parallel, and the second diac respectively with the noninverting input of four-operational amplifier 134, the 4th resistance 184
One end electrical connection, the 4th resistance 184 the other end ground connection, silicon-controlled one end is also grounded.
Furthermore, it is desirable to explanation, in the present embodiment, the first relay 141 and the second relay 142 include hilted broadsword
Double-throw relay, single-pole double-throw relay include normally open end 1411, normal-closed end 1412 and movable end 1413, the first relay
141 normally open end 1411 is electrically connected with the both ends of the first lamps and lanterns 171 respectively with normal-closed end 1412, the second relay 142 it is normally opened
End 1411 is electrically connected with the both ends of the second lamps and lanterns 172 respectively with normal-closed end 1412, the movable end 1413 of the first relay 141 and the
The movable end 1413 of two relays 142 is electrically connected.Do not receive processor 120 transmission conversion instruction when, single-pole double throw after
The movable end 1413 of electric appliance is contacted with normal-closed end 1412 always, to make single-pole double-throw relay be in normally off, works as reception
To processor 120 send conversion instruction when, movable end 1413 can be contacted with normally open end 1411 so that normally open end 1411 be in lead
Logical state.
In the present embodiment, the operation principle of trouble light detection circuit 100 is：
When first lamps and lanterns 171 on airport to be opened and the second lamps and lanterns 172, the first relay 141 is in normally open (i.e.
Movable end 1413 is contacted with normally open end 1411), the second relay 142 is also at normally open, it should be noted that in embodiment
In, the first relay 141 and the second relay 142 are same model, no matter first lamps and lanterns 171 and the second lamps and lanterns 172 on airport
Normally whether, when initial power-on, the first relay 141 and the second relay 142 can be in normally off, to form
Short-circuit loop, it is ensured that will not generate open circuit because of first lamps and lanterns 171 on airport and the failure of the second lamps and lanterns 172 when powering on.
Reference power supply 150 respectively with the first operational amplifier 131, second operational amplifier 132, third operational amplifier
133 and four-operational amplifier 134 reverse input end electrical connection, to generate a Vref reference voltage.It is powering on
When, since the first relay 141 and the second relay 142 form short circuit, so switch module 160 is not turned on, i.e. third operation
The positive input of amplifier 133 and four-operational amplifier 134 is low pressure, to make third operational amplifier 133 and the 4th
Operational amplifier 134 exports high level.It should be noted that the operation principle of operational amplifier is the voltage when positive input
Higher than reverse input end voltage when, the output end of the operational amplifier exports high level；When the voltage of positive input is less than
When the voltage of reverse input end, the output end of the operational amplifier exports low level.
Since the positive input of the first operational amplifier 131 is by the first lamps and lanterns 171, then pass through the first relay 141
Normal-closed end 1412 even, so, if the first lamps and lanterns 171 are without exception, the first operational amplifier 131 exports low level, and
When first lamps and lanterns 171 break down and open a way, the in-phase input end of the first operational amplifier 131 has high pressure, i.e., first transports at this time
It calculates amplifier 131 and exports high level, what can judge whether the first lamps and lanterns 171 are normal by processor 120 from.
Similarly, since the positive input of second operational amplifier 132 is by the second lamps and lanterns 172, then by second after
The normal-closed end 1412 of electric appliance 142 even, so, if the second lamps and lanterns 172 are without exception, second operational amplifier 132 exports low
Level, and the second lamps and lanterns 172 break down when opening a way, the in-phase input end of second operational amplifier 132 has high pressure, i.e., at this time
Second operational amplifier 132 exports high level, what can judge whether the second lamps and lanterns 172 are normal by processor 120 from.
Processor 120 is connected with the first relay 141, the second relay 142, this enables processor 120 to directly control
One relay 141 and the second relay 142；When powering on, processor 120 can be sentenced according to the signal of four operational amplifiers
The first lamps and lanterns 171 and the second lamps and lanterns 172 of off line field are normal condition or distress condition, if the first lamps and lanterns 171 are in just
Normal state, processor 120 can send a signal to the first relay 141, make movable end 1413 and the normally open end of the first relay 141
1411 connections, at this point, electric current can make its normal work by the first lamps and lanterns 171.If the second lamps and lanterns 172 are in normal condition,
Processor 120 can send a signal to the second relay 142, and the movable end 1413 of the second relay 142 is made to connect with normally open end 1411
It is logical, at this point, electric current can make its normal work by the second lamps and lanterns 172.
If there is failure after first lamps and lanterns 171 on airport or the second lamps and lanterns 172 normally start work, for example, first
Lamps and lanterns 171, which break down, opens a way, and the movable end 1413 of the first relay 141 is still connected to normally open end 1411 at this time, so the
One operational amplifier 131 still exports low level, is not by the defeated of the first operational amplifier 131 so after lamps and lanterns startup
Have signal determine lamps and lanterns whether failure, but be determined by third operational amplifier 133.Due to the first relay 141
Movable end 1413 be connected to normally open end 1411, so after the first 171 failed open of lamps and lanterns, entire circuit is in open circuit shape
State, since the open circuit of constant-current source 110 will produce high pressure, to triggering the first triggering pipe 163, in the present embodiment, the first triggering pipe
163 and second triggering pipe 164 be bidirectional trigger diode, first silicon-controlled 161 and second silicon-controlled 162 be it is two-way controllably
Silicon can trigger outside the first silicon-controlled 161 conducting after the first triggering pipe 163 is connected, also generate one by 3rd resistor 183
Voltage signal, this signal are transmitted to processor 120 by third operational amplifier 133, and the can be controlled after the processing of processor 120
One relay 141 resets, and the movable end 1413 of the first relay 141 is connected to normal-closed end 1412 after reset, by the first lamps and lanterns 171
Short circuit.Meanwhile 172 shell normal operation of the second lamps and lanterns, also, staff can be the second 172 normal operation of lamps and lanterns the case where
Under repair, to will not make troubles to the normal operation on airport.Due to when the second lamps and lanterns 172 break down, work
The operation principle made when principle breaks down with the first lamps and lanterns 171 is identical, so details are not described herein.
When airport lamps and lanterns are after breaking down and repairing after normally starting work, basic principle is similar with when starting.With
For one lamps and lanterns 171, after being damaged due to the first lamps and lanterns 171, the first relay 141 resets, movable end 1413 and normal-closed end
1412 connections, the signal that the first operational amplifier 131 is sent into processor 120 are for low level, so not with third operation amplifier
It is subject to the signal of the first operational amplifier 131 subject to the signal of device 133, the noninverting input of the first operational amplifier 131
The first lamps and lanterns 171 are connected, so when the first lamps and lanterns of airport lamps and lanterns 171 break down and do not repair, the first operational amplifier 131
Export high level.If the first lamps and lanterns 171 are just repaired, at this time the noninverting input of the first operational amplifier of operational amplifier 131
It can be connected to ground by movable end 1413 and the normal-closed end 1412 of the first lamps and lanterns 171, the first relay 141, so when the first lamps and lanterns
After 171 repair, the first operational amplifier of operational amplifier 131 exports low level can be judged accordingly by processor 120
Whether the first lamps and lanterns 171 are repaired, while according to the signal of the first operational amplifier 131, processor 120 can start in time first after
Electric appliance 141 makes the first lamps and lanterns 171 immediately enter normal operating conditions.Due to the work that judges whether the second lamps and lanterns 172 are repaired
Principle and the above-mentioned operation principle for judging whether the first lamps and lanterns 171 are repaired are essentially identical, so details are not described herein.
It should be noted that in order to make the volume smaller of trouble light detection circuit 100 in actual use, to more
Add practicality, in the present embodiment, the first operational amplifier 131, second operational amplifier 132, third operational amplifier 133 and
Four-operational amplifier 134 is integrated on a chip.
Also, since trouble light detection circuit 100 provided in this embodiment is suitable for airport, so the electricity of constant-current source 110
Flow ranging from 2.8~6.6A.Of course, trouble light detection circuit 100 provided in this embodiment is equally applicable to other places, this
Embodiment does not do this any restriction.
In the present embodiment, the first lamps and lanterns 171 and the second lamps and lanterns 172 include light source or sensor, further, light source
Including halogen light source and LED light source.
Since trouble light detection circuit 100 provided in this embodiment includes processor 120, it is possible to which convenient, flexible sets
Determine parameters.In order to avoid noise jamming maloperation, processor 120 includes digital filter.
Since trouble light detection circuit 100 provided in this embodiment can realize the automatic function of detecting and automatically reset,
So being not necessarily to human intervention, the artificial of maintenance is saved.
Second embodiment
Referring to Fig. 4, the embodiment of the present invention additionally provides a kind of trouble light detecting system 200, the trouble light detecting system
200 include multiple trouble light detection circuits 100 as in the first embodiment, and the lamp module of multiple fault detection circuits
170 series connection.
Specifically, due to being provided with multiple light sources in airport, and connect between light source, due between each light source away from
From longer, so in the present embodiment, to reduce wiring cost, using each two light source as a lamp module, i.e. two light
A trouble light detection circuit 100 is arranged in source.To reduce wiring cost.
In conclusion a kind of trouble light detection circuit provided by the invention and system, the trouble light detection circuit include
Processor, constant-current source, reference power supply, operational amplifier module, lamp module, switch module, resistive module and relay mould
Block, due to when lamp module breaks down, the status signal of operational amplifier module output and the conducting shape of switch module
State can change, so by judging the status signal of operational amplifier module output and the conducting state of switch module, processing
Device may determine that whether lamp module breaks down, and the connection status of relay then be controlled, to make in lamp module
Unspoiled light source normal operation.On the one hand, due to processor can by judging whether lamp module breaks down, so
The detection of trouble light can be realized automatically, it is without human intervention, more convenient.On the other hand, due to detecting lamp module
After failure, processor can also control the connection status of relay, to keep the unspoiled light source in lamp module normal
Operation, so in actual use, a lamps and lanterns damage, but other lamps and lanterns also can more long running, will not be to airport
Normal operation make troubles.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
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, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should be noted that：Similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and is explained.
Claims (10)
1. a kind of trouble light detection circuit, which is characterized in that the trouble light detection circuit includes processor, constant-current source, benchmark
Power supply, operational amplifier module, lamp module, switch module, resistive module and relay module, the processor respectively with
The operational amplifier module, the relay module electrical connection, the constant-current source respectively with the switch module, the relay
Device module and lamp module electrical connection, the relay are electrically connected with the lamp module, the switch module and institute
State operational amplifier module electrical connection, the reference power supply is electrically connected with the operational amplifier module, the resistive module and
The lamp module electrical connection, the switch module when the lamp module is off for being connected, the operation
Amplifier module is used for the conducting state output state letter of on off operating mode and the switch module according to the lamp module
Number, the processor is used to control the connection status of the relay according to the status signal, so that in the lamp module
Unspoiled lamps and lanterns normal operation.
2. trouble light detection circuit as described in claim 1, which is characterized in that the operational amplifier module includes the first fortune
Amplifier, second operational amplifier, third operational amplifier and four-operational amplifier are calculated, the lamp module includes first
Lamps and lanterns and the second lamps and lanterns, the switch module include first silicon-controlled, second silicon-controlled, the first triggering pipe and the second triggering
Pipe, the relay module include the first relay and the second relay, and the resistive module includes first resistor, the second electricity
Resistance, 3rd resistor and the 4th resistance, first operational amplifier, the second operational amplifier, the third operation are put
Big device and the four-operational amplifier are electrically connected with the reverse input end of the reference power supply, first operation amplifier
Device, the second operational amplifier, the third operational amplifier and the four-operational amplifier output end and institute
Processor electrical connection is stated, and the processor is electrically connected with first relay, second relay respectively, the constant current
Source, first lamps and lanterns and the first resistor are grounded after being sequentially connected in series, the constant-current source, second lamps and lanterns and described
Second resistance is grounded after being also sequentially connected in series, and first relay is electrically connected with first lamps and lanterns, second relay with
Second lamps and lanterns electrical connection and first relay is electrically connected with second relay, the first resistor with it is described
First lamps and lanterns connection one end be electrically connected with the in-phase input end of first operational amplifier, the second resistance with it is described
Second lamps and lanterns connection one end be electrically connected with the in-phase input end of the second operational amplifier, first diac and
The first silicon-controlled parallel connection, and first diac respectively with the noninverting input of the third operational amplifier,
One end of the 3rd resistor is electrically connected, and the other end ground connection of the 3rd resistor, described silicon-controlled one end is also grounded, described
Second diac is silicon-controlled in parallel with described second, and second diac respectively with the 4th operation amplifier
One end electrical connection of the noninverting input of device, the 4th resistance, the other end ground connection of the 4th resistance are described silicon-controlled
One end is also grounded.
3. trouble light detection circuit as claimed in claim 2, which is characterized in that first relay and second relay
Device includes single-pole double-throw relay, and the single-pole double-throw relay includes normally open end, normal-closed end and movable end, and described first
The normally open end of relay is electrically connected with the both ends of first lamps and lanterns respectively with normal-closed end, the normally open end of second relay with
Normal-closed end is electrically connected with the both ends of second lamps and lanterns respectively, the movable end of first relay and second relay
Movable end is electrically connected.
4. trouble light detection circuit as claimed in claim 2, which is characterized in that first operational amplifier, described second
Operational amplifier, the third operational amplifier and the four-operational amplifier are integrated on a chip.
5. trouble light detection circuit as claimed in claim 2, which is characterized in that described first it is silicon-controlled with it is described second controllable
Silicon is bidirectional triode thyristor.
6. trouble light detection circuit as claimed in claim 2, which is characterized in that first lamps and lanterns and second lamps and lanterns are equal
Including light source or sensor.
7. trouble light detection circuit as claimed in claim 6, which is characterized in that the light source includes halogen light source and LED light
Source.
8. trouble light detection circuit as described in claim 1, which is characterized in that the current range of the constant-current source be 2.8~
6.6A。
9. trouble light detection circuit as described in claim 1, which is characterized in that the processor includes digital filter.
10. a kind of trouble light detecting system, which is characterized in that the trouble light detecting system includes multiple such as claim 1 to 9
Trouble light detection circuit described in any one, and the lamp module series connection of multiple fault detection circuits.
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