CN108828469A - A kind of street lamp fault diagnostic circuit and its diagnostic method - Google Patents
A kind of street lamp fault diagnostic circuit and its diagnostic method Download PDFInfo
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- CN108828469A CN108828469A CN201810687750.9A CN201810687750A CN108828469A CN 108828469 A CN108828469 A CN 108828469A CN 201810687750 A CN201810687750 A CN 201810687750A CN 108828469 A CN108828469 A CN 108828469A
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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
The invention discloses a kind of street lamp fault diagnostic circuit and its diagnostic methods, wherein street lamp fault diagnostic circuit includes sequentially connected mains-supplied unit, first detection unit, road lamp power supply unit, street lamp lamp group and second detection unit；Wherein, first detection unit includes alternating voltage detection sub-unit and alternating current detection sub-unit；Second detection unit includes DC voltage detection sub-unit and direct current detection subelement, when at least one detected value that first detection unit and second detection unit detect is not within the scope of normal detected value, it is determined that goes out at least one of following break down：Mains-supplied unit, road lamp power supply unit and street lamp lamp group.The solution of the present invention can overcome which the specific device existing in the prior art that can not accurately know street lamp group to break down, alternatively, the problem of device of which kind breaks down, can accomplish：Can accurately it know：Which specific device of street lamp group breaks down, alternatively, the device of which kind breaks down.
Description
Technical field
The present invention relates to Internet of Things network technique fields, and in particular to a kind of street lamp fault diagnostic circuit and its diagnosis side
Method.
Background technique
With the development of era development and technology, Internet of Things network technology is developed, can be by Internet of Things network technology
It is also introduced into the control system of each street lamp for controlling street lamp group.
Traditional street lamp fault diagnostic circuit can not accurately learn the specific a certain small cup road of certain some region of a road section
Lamp occurs abnormal.Therefore, when a certain small cup street lamp of certain some region of a road section occurs abnormal, the service work of street lamp will be
Extremely time-consuming and effort process.Usual way is that control system passes through the feedback information got, probably learns, a certain
The street lamp of certain a road section in region breaks down, in this way, maintenance personal will arrive corresponding fault zone investigation specifically which or
Which street lamp of person breaks down.
In addition to this, even if maintenance personal takes a substantial amount of time investigation to which specific street lamp to scene, or
There is failure in person, which street lamp, since maintenance personal is not aware which specific device breaks down, alternatively, which
The device of one type breaks down, and the maintenance personal to send can not targetedly repair, it is also necessary to further
Other related maintenance personals are appointed to repair, the above process will be the process taken time and effort.
Which the specific device for how accurately determining out street lamp group breaks down, alternatively, the device of which kind goes out
Existing failure, is technical problem to be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of street lamp fault diagnostic circuit and its diagnostic methods, to solve existing skill
Art can not accurately know which specific device of street lamp group breaks down, alternatively, what the device of which kind broke down
Problem.
To achieve the above object, the present invention provides a kind of street lamp fault diagnostic circuit, and the diagnostic circuit includes successively connecting
Mains-supplied unit, first detection unit, road lamp power supply unit, second detection unit and the street lamp lamp group connect；Wherein, described
One detection unit includes alternating voltage detection sub-unit and alternating current detection sub-unit, and the alternating voltage detection sub-unit is used
In the ac voltage that basis detects whether within the scope of corresponding normal detected value, determine that the mains-supplied unit is
Whether no failure, the alternating current detection sub-unit are used for according to the AC current values detected in corresponding normal inspection
Within the scope of measured value, determine whether the road lamp power supply unit breaks down；The second detection unit includes DC voltage inspection
Subelement and direct current detection subelement are surveyed, the DC voltage detection sub-unit is used for according to the DC voltage value detected
Whether within the scope of corresponding normal detected value, determine whether the road lamp power supply unit or the street lamp lamp group event occur
Barrier；Whether the direct current detection subelement is used for according to the DC current values detected in corresponding normal detected value range
It is interior, determine whether the street lamp lamp group breaks down.
Optionally, if the ac voltage that the alternating voltage detection sub-unit detects is lower than preset first voltage threshold
The range of value, then the mains-supplied unit breaks down, and corresponding fault type is：Line voltage is too low, wherein described
The range of one voltage threshold is 180v-250v；If the ac voltage that the alternating voltage detection sub-unit detects is higher than pre-
If first threshold range, then the mains-supplied unit breaks down, and corresponding fault type is：Line voltage is excessively high.
Optionally, if the AC current values that the alternating current detection sub-unit detects are lower than preset second current threshold
The range of value, then the road lamp power supply unit breaks down, and corresponding fault type is：The road lamp power supply cell operation is different
Often, alternatively, the road lamp power supply unit input pull-down, wherein the range of second current threshold is 0.001A-1A；If institute
The range that the AC current values that alternating current detection sub-unit detects are higher than preset second current threshold is stated, then the street lamp
Power supply unit breaks down, and corresponding fault type is：The road lamp power supply cell operation is abnormal, alternatively, the road lamp power supply
Unit input short.
Optionally, if the DC voltage value that the DC voltage detection sub-unit detects is lower than preset tertiary voltage threshold
The range of value, then the road lamp power supply unit or the street lamp lamp group break down, and corresponding fault type is：The street lamp
Power supply unit overcurrent protection, alternatively, exception occurs in the street lamp lamp group, wherein the range of the tertiary voltage threshold value is 20v-
39v。
Optionally, if the DC current values that the direct current detection subelement detects are lower than preset 4th current threshold
The range of value, then the street lamp lamp group breaks down, and corresponding fault type is：There is exception in the street lamp lamp group, alternatively, institute
State street lamp lamp group input pull-down, wherein the range of the 4th current threshold is 0.5A-3.5A；If the direct current detection
The DC current values that subelement detects are higher than the range of preset 4th current threshold, then the street lamp lamp group breaks down,
Corresponding fault type is：There is exception in the street lamp lamp group, alternatively, the street lamp lamp group input short.
Optionally, the alternating voltage detection sub-unit includes first resistor, the first optocoupler and the first analog-digital converter, is handed over
Galvanic electricity pressure is depressured by first resistor, and drives the first optocoupler linear optical coupling, and alternating voltage is converted into the first direct current
Pressure, and first DC voltage is exported, first DC voltage is obtained by first analog-digital converter sampling conversion
Corresponding ac voltage, wherein the voltage range of first DC voltage is 0v-3.3v, the mains-supplied unit
Output end is connected with the input terminal of the alternating voltage detection sub-unit, the output end of the alternating voltage detection sub-unit and institute
The input terminal for stating road lamp power supply unit is connected；And/or the alternating current detection sub-unit includes second resistance, the second optocoupler
With the second analog-digital converter, electric current is converted into voltage by second resistance, and by the second light-coupled isolation optocoupler, by the electricity
Pressure is converted into second voltage, and exports the second voltage, and the second voltage is changed by second analog-digital converter sampling
It calculates, obtains corresponding AC current values, wherein the voltage range of the second voltage is 0v-3.3v, the mains-supplied unit
Output end be connected with the input terminal of the alternating current detection sub-unit, the output end of the alternating current detection sub-unit with
The input terminal of the road lamp power supply unit is connected.
Optionally, the DC voltage detection sub-unit includes 3rd resistor, the 4th resistance and third analog-digital converter, institute
It states 3rd resistor and the 4th resistance is connected in series, one end ground connection of the 4th resistance, DC voltage passes through the third
Resistance and the 4th resistance are divided, and tertiary voltage is obtained, and the tertiary voltage is adopted by the third analog-digital converter
Sample conversion, obtains corresponding DC voltage value, wherein the voltage range of the tertiary voltage is 0v-3.3v, the road lamp power supply
The output end of unit is connected with the input terminal of the DC voltage detection sub-unit, the output of the DC voltage detection sub-unit
End is connected with the input terminal of the street lamp lamp group.
Optionally, the direct current detection subelement includes sampling resistor, third optocoupler and the 4th analog-digital converter, electricity
Stream is converted into the 4th voltage by the sampling resistor, and the 4th voltage is obtained by the amplification of the third optocoupler
5th voltage, the 5th voltage obtain corresponding DC current values by the 4th analog-digital converter sampling conversion,
In, the voltage range of the 5th voltage is 0v-3.3v, the output end of the road lamp power supply unit and the direct current detection
The input terminal of subelement is connected, and the output end of the direct current detection subelement is connected with the input terminal of the street lamp lamp group.
Match with above-mentioned diagnostic circuit, another aspect of the present invention provides a kind of diagnosis side of street lamp fault diagnostic circuit
Method, the diagnostic method include：By above-described street lamp fault diagnostic circuit, the detection of the first detection unit is obtained
The detected value of value and the second detection unit；Determine the first detection unit detected value and the second detection unit
Whether detected value is within the scope of corresponding normal detected value；When at least one detected value is not within the scope of normal detected value, then
Determine at least one of following break down：The mains-supplied unit, the road lamp power supply unit and the street lamp lamp group.
Optionally, the method also includes：Obtain the international mobile equipment identification number of current street lamp；And it is obtained described
After the international mobile equipment identification number for taking current street lamp, the geographical location information of current street lamp is obtained, and by the geographical location
Information and the international mobile equipment identification number establish one-to-one relationship.
The invention has the advantages that：The street lamp fault diagnostic circuit includes sequentially connected mains-supplied unit,
One detection unit, road lamp power supply unit, second detection unit and street lamp lamp group；First detection unit includes alternating voltage detection
Unit and alternating current detection sub-unit；Second detection unit includes that DC voltage detection sub-unit and direct current detection are single
Member, when at least one detected value that first detection unit and second detection unit detect is not within the scope of normal detected value, then
Determine at least one of following break down：Mains-supplied unit, road lamp power supply unit and street lamp lamp group.The solution of the present invention,
Which the specific device existing in the prior art that can not accurately know street lamp group can be overcome to break down, alternatively, which
The problem of device of one type breaks down, can accomplish：Can accurately it know：Which specific device of street lamp group occurs
Failure, alternatively, the device of which kind breaks down.
Detailed description of the invention
Fig. 1 is the general frame figure of an embodiment of street lamp fault diagnostic circuit of the invention；
Fig. 2 is the detection circuit figure of the alternating voltage detection sub-unit of first detection unit of the invention；
Fig. 3 is the detection circuit figure of the alternating current detection sub-unit of first detection unit of the invention；
Fig. 4 is the detection circuit figure of second detection unit of the invention；
Fig. 5 is the flow diagram of an embodiment of diagnostic method of the invention.
In conjunction with attached drawing, appended drawing reference is as follows in the embodiment of the present invention：
10, mains-supplied unit；20, first detection unit；30, road lamp power supply unit；
40, second detection unit；50, street lamp lamp group.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment 1
According to an embodiment of the invention, a kind of street lamp fault diagnostic circuit is provided, as shown in Figure 1, being road of the invention
The general frame figure of one embodiment of lamp failure diagnostic circuit.As shown in Figure 1, street lamp fault diagnostic circuit of the invention include according to
Mains-supplied unit 10, first detection unit 20, road lamp power supply unit 30, second detection unit 40 and the street lamp lamp group of secondary connection
50；Wherein, first detection unit 20 includes alternating voltage detection sub-unit and alternating current detection sub-unit, alternating voltage detection
Whether subelement is used for according to the ac voltage detected within the scope of corresponding normal detected value, determines mains-supplied list
Whether member 10 breaks down, and whether alternating current detection sub-unit is used for according to the AC current values detected corresponding normal
Within the scope of detected value, determine whether road lamp power supply unit 30 breaks down；Second detection unit 40 is detected including DC voltage
Subelement and direct current detection subelement, DC voltage detection sub-unit be used for according to the DC voltage value that detects whether
Within the scope of corresponding normal detected value, determine whether road lamp power supply unit 30 or street lamp lamp group 50 break down；Direct current
Whether stream detection sub-unit is used for according to the DC current values detected within the scope of corresponding normal detected value, determines street lamp
Whether lamp group 50 breaks down；In this way, the street lamp fault diagnostic circuit provided through the embodiment of the present invention, works as first detection unit
At least one detected value detected with second detection unit is not within the scope of normal detected value, it is determined that goes out at least one of following
It breaks down：Mains-supplied unit, road lamp power supply unit and street lamp lamp group；Can accurately it know：Street lamp group it is specific which
One device breaks down, alternatively, the device of which kind breaks down.
It should be noted that mains-supplied unit 10 is capable of providing the voltage of 220V.In order to energy saving, street lamp lamp group 50
Traditional lamp group can be used, more energy-efficient LED light group also can be used.
In an optional example, if the ac voltage that detects of alternating voltage detection sub-unit is lower than preset the
The range of one voltage threshold, then mains-supplied unit 10 breaks down, and corresponding fault type is：Line voltage is too low, wherein
The range of first voltage threshold value is 180v-250v；If the ac voltage that alternating voltage detection sub-unit detects is higher than default
First threshold range, then mains-supplied unit 10 breaks down, and corresponding fault type is：Line voltage is excessively high；In this way,
The ac voltage that alternating voltage detection sub-unit detects is compared with the range of preset first voltage threshold value, energy
It is enough to be accurately diagnosed to be：Which specific device of street lamp group breaks down, alternatively, the device of which kind breaks down.
In an optional example, if the AC current values that detect of alternating current detection sub-unit are lower than preset the
The range of two current thresholds, then road lamp power supply unit 30 breaks down, and corresponding fault type is：Road lamp power supply unit 30 works
It is abnormal, alternatively, 30 input pull-down of road lamp power supply unit, wherein the range of the second current threshold is 0.001A-1A；If alternating current
The AC current values that stream detection sub-unit detects are higher than the range of preset second current threshold, then road lamp power supply unit 30 goes out
Existing failure, corresponding fault type are：30 operation irregularity of road lamp power supply unit, alternatively, 30 input short of road lamp power supply unit；This
The AC current values that alternating current detection sub-unit detects are compared sample with the range of the second current threshold, it will be able to
Accurately it is diagnosed to be：Which specific device of street lamp group breaks down, alternatively, the device of which kind breaks down.
In an optional example, if the DC voltage value that detects of DC voltage detection sub-unit is lower than preset the
The range of three voltage thresholds, then road lamp power supply unit 30 or street lamp lamp group 50 break down, and corresponding fault type is：Street lamp
30 overcurrent protection of power supply unit, alternatively, exception occurs in street lamp lamp group 50, wherein the range of tertiary voltage threshold value is 20v-39v；
In this way, the range of DC voltage value and tertiary voltage threshold value that DC voltage detection sub-unit detects is compared, energy
It is enough to be accurately diagnosed to be：Which specific device of street lamp group breaks down, alternatively, the device of which kind breaks down.
In an optional example, if the DC current values that detect of direct current detection subelement are lower than preset the
The range of four current thresholds, then street lamp lamp group 50 breaks down, and corresponding fault type is：There is exception in street lamp lamp group 50, or
Person, 50 input pull-down of street lamp lamp group, wherein the range of the 4th current threshold is 0.5A-3.5A；If direct current detection subelement
The DC current values detected are higher than the range of preset 4th current threshold, then street lamp lamp group 50 breaks down, corresponding event
Hindering type is：There is exception in street lamp lamp group 50, alternatively, 50 input short of street lamp lamp group；In this way, by direct current detection subelement
The DC current values detected are compared with the range of the 4th current threshold, it will be able to accurately be diagnosed to be：The tool of street lamp group
Which device of body breaks down, alternatively, the device of which kind breaks down.
It is accurately and quickly diagnosed to be the fault type for the street lamp of street lamp group to break down for convenience, table 1 gives
Street lamp fault type judges table, specific as follows shown：
1 street lamp fault type of table judges table
As shown in Fig. 2, the detection circuit figure of the alternating voltage detection sub-unit for first detection unit of the invention.Exchange
Voltage detecting subelement includes that first resistor R21, the first optocoupler U9 and the first analog-digital converter, alternating voltage pass through first resistor
It is depressured R21, and drives the first optocoupler U9 linear optical coupling, alternating voltage is converted into the first DC voltage, and export the first direct current
Voltage, the first DC voltage obtain corresponding ac voltage by the sampling conversion of the first analog-digital converter, wherein first is straight
The voltage range of galvanic electricity pressure is 0v-3.3v, the output end of mains-supplied unit 10 and the input terminal of alternating voltage detection sub-unit
It is connected, the output end of alternating voltage detection sub-unit is connected with the input terminal of road lamp power supply unit 30.It should be noted that first
Isolation is presented in DC voltage, and by the first direct voltage output of isolation.
As shown in figure 3, the detection circuit figure of the alternating current detection sub-unit for first detection unit of the invention.Such as figure
Shown in 3, alternating current detection sub-unit includes that second resistance R22, the second optocoupler U10 and the second analog-digital converter, electric current pass through
Second resistance R22 is converted into voltage, and by the second optocoupler U10 isolation optocoupler, converts this voltage to second voltage, and export
Second voltage, second voltage obtain corresponding AC current values by the sampling conversion of the second analog-digital converter, wherein the second electricity
The voltage range of pressure is 0v-3.3v, and the output end of mains-supplied unit 10 is connected with the input terminal of alternating current detection sub-unit,
The output end of alternating current detection sub-unit is connected with the input terminal of road lamp power supply unit 30.
As shown in figure 4, being the detection circuit figure of second detection unit of the invention；As shown in figure 4, DC voltage detection
Unit includes 3rd resistor R23, the 4th resistance R24 and third analog-digital converter, and 3rd resistor R23 and the 4th resistance R24 connect
Connection, one end ground connection of the 4th resistance R24, DC voltage are divided by 3rd resistor R23 and the 4th resistance R24, are obtained
Tertiary voltage, tertiary voltage obtain corresponding DC voltage value by the sampling conversion of third analog-digital converter, wherein third electricity
The voltage range of pressure is 0v-3.3v, and the output end of road lamp power supply unit 30 is connected with the input terminal of DC voltage detection sub-unit,
The output end of DC voltage detection sub-unit is connected with the input terminal of street lamp lamp group 50.
As shown in figure 4, direct current detection subelement includes sampling resistor R20, third optocoupler U11 and the 4th analog-to-digital conversion
Device, electric current are converted into the 4th voltage with small voltage value by sampling resistor R20, and the 4th voltage passes through third optocoupler U11
Amplification, obtain the 5th voltage, the 5th voltage obtains corresponding DC current by the sampling conversion of the 4th analog-digital converter
Value, wherein the voltage range of the 5th voltage is 0v-3.3v, and output end and direct current detection of road lamp power supply unit 30 are single
The input terminal of member is connected, and the output end of direct current detection subelement is connected with the input terminal of street lamp lamp group 50.
Embodiment 2
According to an embodiment of the invention, the diagnostic method corresponding to street lamp fault diagnostic circuit is additionally provided, such as Fig. 5 institute
Show, is the flow diagram of an embodiment of diagnostic method of the invention.By street lamp fault diagnostic circuit as shown in Figure 1 into
Row diagnosis, this method at least include the following steps：
S510 obtains the detected value of first detection unit 20 and the detected value of second detection unit 40；
S520, whether the detected value of the detected value and second detection unit 40 that determine first detection unit 20 is corresponding
Within the scope of normal detected value；
S530, when at least one detected value is not within the scope of normal detected value, it is determined that go out at least one of following appearance event
Barrier：Mains-supplied unit 10, road lamp power supply unit 30 and street lamp lamp group 50；In this way, when first detection unit and the second detection are single
At least one detected value that member detects is not within the scope of normal detected value, it is determined that goes out at least one of following break down：City
Electric power supply unit, road lamp power supply unit and street lamp lamp group；Diagnostic method provided in an embodiment of the present invention can be accomplished：It can be quasi-
Really know：Which specific device of street lamp group breaks down, alternatively, the device of which kind breaks down.
In an optional example, in order to realize simplicity and accurately to multiple street lamps at least one street lamp group
Position is accurately positioned, and monitoring method for road lamps provided in an embodiment of the present invention further includes：The world for obtaining current street lamp is mobile
EIC equipment identification code.It should be noted that each street lamp in each street lamp group is each equipped with communication module, pass through each small cup
The communication module of street lamp can be accurately obtained the international mobile equipment identification number of current street lamp, which knows
Other code is globally unique.
In an optional example, in order to realize simplicity and accurately to multiple street lamps at least one street lamp group
Position is accurately positioned, monitoring method for road lamps provided in an embodiment of the present invention, in the international mobile device for obtaining current street lamp
After identification code, the method also includes：Obtain the geographical location information of current street lamp, and by the geographical location information and international
Mobile device identification code establishes one-to-one relationship.
It, will be every in each street lamp group in order to which more street lamps at least one street lamp group are accurately positioned
One-to-one relationship between the international mobile equipment identification number and corresponding geographical location information of one street lamp establishes data
Library, and data information therein is updated；In this way, diagnostic method provided in an embodiment of the present invention can not only accurately really
It makes：Street lamp break down fault type, and break down street lamp geographical location information.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. a kind of street lamp fault diagnostic circuit, which is characterized in that including sequentially connected mains-supplied unit (10), the first detection
Unit (20), road lamp power supply unit (30), second detection unit (40) and street lamp lamp group (50)；Wherein,
The first detection unit (20) includes alternating voltage detection sub-unit and alternating current detection sub-unit, the alternating current
Whether pressure detection sub-unit is used for according to the ac voltage detected within the scope of corresponding normal detected value, determines described
Whether mains-supplied unit (10) breaks down, and the alternating current detection sub-unit is used for according to the AC current values detected
Whether within the scope of corresponding normal detected value, determine whether the road lamp power supply unit (30) is broken down；
The second detection unit (40) includes DC voltage detection sub-unit and direct current detection subelement, the direct current
Whether pressure detection sub-unit is used for according to the DC voltage value detected within the scope of corresponding normal detected value, determines described
Whether road lamp power supply unit (30) or the street lamp lamp group (50) break down；The direct current detection subelement is used for root
According to the DC current values detected whether within the scope of corresponding normal detected value, determine whether the street lamp lamp group (50) goes out
Existing failure.
2. street lamp fault diagnostic circuit according to claim 1, which is characterized in that
If the ac voltage that the alternating voltage detection sub-unit detects is lower than the range of preset first voltage threshold value,
The mains-supplied unit (10) is broken down, and corresponding fault type is：Line voltage is too low, wherein the first voltage
The range of threshold value is 180v-250v；
If the ac voltage that the alternating voltage detection sub-unit detects is higher than the range of preset first threshold, described
Mains-supplied unit (10) breaks down, and corresponding fault type is：Line voltage is excessively high.
3. street lamp fault diagnostic circuit according to claim 1, which is characterized in that
If the AC current values that the alternating current detection sub-unit detects are lower than the range of preset second current threshold,
The road lamp power supply unit (30) is broken down, and corresponding fault type is：Road lamp power supply unit (30) operation irregularity, or
Person, road lamp power supply unit (30) input pull-down, wherein the range of second current threshold is 0.001A-1A；
If the AC current values that the alternating current detection sub-unit detects are higher than the range of preset second current threshold,
The road lamp power supply unit (30) is broken down, and corresponding fault type is：Road lamp power supply unit (30) operation irregularity, or
Person, road lamp power supply unit (30) input short.
4. street lamp fault diagnostic circuit according to claim 1, which is characterized in that
If the DC voltage value that the DC voltage detection sub-unit detects is lower than the range of preset tertiary voltage threshold value,
The road lamp power supply unit (30) or the street lamp lamp group (50) break down, and corresponding fault type is：The street lamp electricity
Source unit (30) overcurrent protection, alternatively, exception occurs in the street lamp lamp group (50), wherein the range of the tertiary voltage threshold value
For 20v-39v.
5. street lamp fault diagnostic circuit according to claim 1, which is characterized in that
If the DC current values that the direct current detection subelement detects are lower than the range of preset 4th current threshold,
The street lamp lamp group (50) is broken down, and corresponding fault type is：There is exception in the street lamp lamp group (50), alternatively, described
Street lamp lamp group (50) input pull-down, wherein the range of the 4th current threshold is 0.5A-3.5A；
If the DC current values that the direct current detection subelement detects are higher than the range of preset 4th current threshold,
The street lamp lamp group (50) is broken down, and corresponding fault type is：There is exception in the street lamp lamp group (50), alternatively, described
Street lamp lamp group (50) input short.
6. street lamp fault diagnostic circuit according to claim 1, which is characterized in that
The alternating voltage detection sub-unit includes that first resistor, the first optocoupler and the first analog-digital converter, alternating voltage pass through
First resistor decompression, and the first optocoupler linear optical coupling is driven, alternating voltage is converted into the first DC voltage, and export institute
The first DC voltage is stated, first DC voltage is exchanged accordingly by first analog-digital converter sampling conversion
Voltage value, wherein the voltage range of first DC voltage is 0v-3.3v, the output end of the mains-supplied unit (10)
It is connected with the input terminal of the alternating voltage detection sub-unit, the output end and the street lamp of the alternating voltage detection sub-unit
The input terminal of power supply unit (30) is connected；
And/or
The alternating current detection sub-unit includes second resistance, the second optocoupler and the second analog-digital converter, and electric current passes through second
Resistance is converted into voltage, and by the second light-coupled isolation optocoupler, converts this voltage to second voltage, and exports described
Two voltages, the second voltage obtain corresponding AC current values by second analog-digital converter sampling conversion, wherein
The voltage range of the second voltage is 0v-3.3v, and the output end and the alternating current of the mains-supplied unit (10) are examined
The input terminal for surveying subelement is connected, and the output end of the alternating current detection sub-unit is defeated with the road lamp power supply unit (30)
Enter end to be connected.
7. street lamp fault diagnostic circuit according to claim 1, which is characterized in that
The DC voltage detection sub-unit includes 3rd resistor, the 4th resistance and third analog-digital converter, the 3rd resistor
It is connected in series with the 4th resistance, one end of the 4th resistance ground connection, DC voltage passes through the 3rd resistor and described
4th resistance is divided, and tertiary voltage is obtained, and the tertiary voltage is obtained by third analog-digital converter sampling conversion
Corresponding DC voltage value, wherein the voltage range of the tertiary voltage is 0v-3.3v, the road lamp power supply unit (30)
Output end is connected with the input terminal of the DC voltage detection sub-unit, the output end of the DC voltage detection sub-unit and institute
The input terminal for stating street lamp lamp group (50) is connected.
8. street lamp fault diagnostic circuit according to claim 1, which is characterized in that
The direct current detection subelement includes sampling resistor, third optocoupler and the 4th analog-digital converter, and electric current passes through described
Sampling resistor is converted into the 4th voltage, and the 4th voltage obtains the 5th voltage, institute by the amplification of the third optocoupler
The 5th voltage is stated by the 4th analog-digital converter sampling conversion, obtains corresponding DC current values, wherein the 5th electricity
The voltage range of pressure is 0v-3.3v, output end and the direct current detection subelement of the road lamp power supply unit (30)
Input terminal is connected, and the output end of the direct current detection subelement is connected with the input terminal of the street lamp lamp group (50).
9. a kind of diagnostic method of street lamp fault diagnostic circuit, which is characterized in that including：
By street lamp fault diagnostic circuit a method as claimed in any one of claims 1-8, the inspection of the first detection unit (20) is obtained
The detected value of measured value and the second detection unit (40)；
Whether the detected value of the detected value and the second detection unit (40) that determine the first detection unit (20) is in phase
Within the scope of the normal detected value answered；
When at least one detected value is not within the scope of normal detected value, it is determined that go out at least one of following break down：The city
Electric power supply unit (10), the road lamp power supply unit (30) and the street lamp lamp group (50).
10. diagnostic method according to claim 9, which is characterized in that the method also includes：Obtain the state of current street lamp
Border mobile device identification code；And
After the international mobile equipment identification number for obtaining current street lamp, the geographical location information of current street lamp is obtained, and
The geographical location information and the international mobile equipment identification number are established into one-to-one relationship.
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| CN109991561A (en) * | 2019-04-11 | 2019-07-09 | 珠海格力智能装备有限公司 | Test method and system, household electrical appliance, terminal module |
| CN110165777A (en) * | 2019-05-07 | 2019-08-23 | 数知(北京)物联科技有限公司 | A kind of power-supply management system and power supply relational approach applied to city intelligent street lamp |
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