CN107271821A - The intelligent checking system and method for a kind of LED control devices - Google Patents
The intelligent checking system and method for a kind of LED control devices Download PDFInfo
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- CN107271821A CN107271821A CN201710576266.4A CN201710576266A CN107271821A CN 107271821 A CN107271821 A CN 107271821A CN 201710576266 A CN201710576266 A CN 201710576266A CN 107271821 A CN107271821 A CN 107271821A
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- control devices
- led control
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- detecting unit
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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
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- General Physics & Mathematics (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention relates to a kind of intelligent checking system of LED control devices and method, what is solved is the temperature rise technical problem unstable with variation of ambient temperature, by using including the fixed temperature detecting unit of at least one in baking oven, and positioned at the portable temperature detecting unit of at least one of LED control devices shell to be measured, connected with the micro-control unit that the first temperature detecting unit and second temperature detection unit are connected jointly, the host computer being connected with micro-control unit；The fixed temperature detecting unit is used to detect and feed back environment temperature in baking oven；The portable temperature detecting unit is used for the technical scheme for detecting the temperature of LED control devices shell correspondence position to be measured, preferably resolves the problem, available in the test of LED control devices.
Description
Technical field
The present invention relates to field of circuit technology, and in particular to the intelligent checking system and method for a kind of LED control devices.
Background technology
LED control devices have larger as the core component of LED lamp product to LED lamp quality, performance and life-span
Influence, LED control devices quality problems even have become the bottleneck of LED illumination industry development.To malfunction, transformation
The control of environment temperature in device heat run, abnormality, especially process of the test, human factor influence is larger.
Deposited at different ambient temperatures in existing LED controls detection, the problem of temperature rise of control device is non-constant.Cause
This disclosure satisfy that the system and method for testing of test needs are just necessary there is provided a kind of environment temperature.
The content of the invention
The technical problems to be solved by the invention are LED control devices to be measured present in prior art in varying environment temperature
The different technical problem of temperature rise under degree.A kind of intelligent checking system of new LED control devices, the LED control devices are provided
Intelligent checking system there is the characteristics of overcoming under varying environment the problem of temperature rise is different.
In order to solve the above technical problems, the technical scheme used is as follows：
A kind of intelligent checking system of LED control devices, including baking oven, LED control devices to be measured are located in baking oven, the intelligence
Detecting system also includes the fixed temperature detecting unit of at least one being located in baking oven, and outside LED control devices to be measured
The portable temperature detecting unit of at least one of shell, is connected jointly with the first temperature detecting unit and second temperature detection unit
Micro-control unit is connected, the host computer being connected with micro-control unit；The fixed temperature detecting unit is used to detect and feed back
Environment temperature in baking oven；The portable temperature detecting unit is used for the temperature for detecting LED control devices shell correspondence position to be measured
Degree.
The operation principle of the present invention：The present invention is using linkage temprature control method.First, selection is tried in baking oven
Test, the detection unit control that oven temperature can be asked by two-way, respectively fixed temperature detecting unit and portable temperature inspection
Unit is surveyed, fixed temperature detecting unit is used for the environment temperature for measuring and setting baking oven, and heat movable type temperature detecting unit is used
In the temperature and the stable state of searching control device of measuring and controlling.The environment temperature that can test control device is complete
Meet standard requirement.
In such scheme, for optimization, further, the intelligent checking system also include be connected to control device to be measured with
Current detecting unit between micro-control unit.
Further, the intelligent checking system also includes the industry control unit being connected with LED control devices to be measured, the work
Control unit is used for the output state for controlling LED control devices, including LED control devices to be measured are set into the control of constant pressure output type
Device or constant current output type control device.
Further, the constant pressure output type control device has the output of at least 2 tunnels, will connect every a pair of phases of LED module
The output open circuit answered, simultaneously switches off every a pair corresponding outputs of all connection LED modules；Setting is twice in constant pressure output control
The LED module or equivalent load of device connection are connected in parallel in the output of constant pressure output-controlling device.
Further, the constant current output type control device has the output of at least 2 tunnels, will connect every a pair of phases of LED module
The output open circuit answered, simultaneously switches off every a pair corresponding outputs of all connection LED modules；Setting is twice in constant pressure output control
The LED module or equivalent load of device connection are connected in the output of constant pressure output-controlling device；Every a pair are accordingly connected successively
Connect the output short-circuit of LED module.
The present invention also provides a kind of method of the intelligent checking system of LED control devices, and methods described includes：
（1）LED control devices to be measured are put into baking oven, baking oven is opened, LED control devices to be measured is connected with power supply；
（2）When intelligent checking system Automatic-searching can make LED control devices normal work to be measured, LED control devices shell is surveyed
Temperature at examination position reaches TCIt is worth ambient temperature value T in corresponding baking ovenD；
（3）Preset temperature value, is cooperated by micro-control unit and fixed temperature detecting unit, by environment temperature in baking oven
It is set to test temperature；
（4）The simulated failure on LED control devices to be measured, at least 1 is laid in the measurement position of shell LED control devices to be measured
Individual portable temperature detecting unit；
（5）Carry out malfunction test.
In such scheme, for optimization, further, the Automatic-searching can make LED control devices normal work to be measured
When, the temperature at LED control device shell test positions reaches TCIt is worth ambient temperature value T in corresponding baking ovenDIncluding：
（A）The environment temperature defined in baking box is controlled by portable temperature detecting unit；
（B）Using host computer, specified test temperature value T at LED control device shell test positions is definedC；
（C）The ambient temperature value in baking oven is measured using fixed temperature detecting unit；
（D）Portable temperature detecting unit is placed at control device test position, starts LED control devices, makes LED control dresses
Put after normal work, portable temperature detecting unit measurement value stabilization, portable temperature detecting unit measured value is designated as T2；
（E）Start the environment temperature in baking oven power supply, lifting baking oven, the measured value T of portable temperature detecting unit3Equal to specified
Test temperature value TC, fixed temperature detecting unit measurement value stabilization；
（F）Record arrangement（E）The fixed temperature detecting unit measured value of middle stabilization is ambient temperature value in baking oven；
（G）Environment temperature in baking oven is set to be controlled by thermocouple A, by ambient temperature value T in baking ovenDIt is set as step
Suddenly（F）Fixed temperature detecting unit measured value.
Further, the preset temperature value is TDOr the ceiling temperature T needed for malfunction test processMAX。
Further, the input voltage of the LED control devices to be measured is 0.9 times of rated voltage~1.1 times rated voltage.
Further, the LED control devices to be measured are transformer to be measured.
Beneficial effects of the present invention：
Effect one, LED control devices shell somewhere to be measured temperature correspondence is measured by using temperature linkage temprature control method
Environment temperature so that the problem of overcoming temperature rise different；
Effect two, being capable of the measurement of intelligent processing method various faults；
In effect three, test process, system is to input voltage and electric current, output voltage and electric current and test point temperature and environment
Temperature carries out real-time sampling and recorded.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1, in the prior art LED control devices temperature rise variation tendency schematic diagram to be measured.
Intelligent checking system schematic diagram in Fig. 2, embodiment 1.
Thermal protector temperature fault test schematic diagram in Fig. 3, embodiment 1.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to limit only to explain the present invention
The fixed present invention.
Embodiment 1
The present embodiment provides a kind of intelligent checking system of LED control devices, such as Fig. 2, including baking oven, LED control devices to be measured
In baking oven, the intelligent checking system also includes the fixed temperature detecting unit of at least one being located in baking oven, Yi Jiwei
In the portable temperature detecting unit of at least one of LED control devices shell to be measured, with the first temperature detecting unit and second temperature
The micro-control unit connection that detection unit is connected jointly, the host computer being connected with micro-control unit；The fixed temperature detection
Unit is used to detect and feed back environment temperature in baking oven；The portable temperature detecting unit is used to detect LED controls dress to be measured
Put the temperature of shell correspondence position.
Such as Fig. 1, LED control devices temperature rise variation tendency schematic diagram to be measured in the prior art.It can be seen that, prior art is deposited
With environment temperature it is different, the problem of temperature rise is different.The present embodiment is by using temperature linkage temperature control.It is wherein fixed
Temperature detecting unit and portable temperature detecting unit use thermocouple.
It is that intelligentized control method LED control devices to be measured complete every Test to Failure, it is preferable that the Intelligent Measurement such as Fig. 2
System also includes the industry control unit being connected with LED control devices to be measured.
Such as Fig. 3, test process is：
（1）LED control devices to be measured are put into baking oven, baking oven is opened, LED control devices to be measured is connected with power supply；
（2）When intelligent checking system Automatic-searching can make LED control devices normal work to be measured, LED control devices shell is surveyed
Temperature at examination position reaches TCIt is worth ambient temperature value T in corresponding baking ovenD；
（A）The environment temperature defined in baking box is controlled by portable temperature detecting unit；
（B）Using host computer, specified test temperature value T at LED control device shell test positions is definedC；
（C）The ambient temperature value in baking oven is measured using fixed temperature detecting unit；
（D）Portable temperature detecting unit is placed at control device test position, starts LED control devices, makes LED control dresses
Put after normal work, portable temperature detecting unit measurement value stabilization, portable temperature detecting unit measured value is designated as T2；
（E）Start the environment temperature in baking oven power supply, lifting baking oven, the measured value T of portable temperature detecting unit3Equal to specified
Test temperature value TC, fixed temperature detecting unit measurement value stabilization；
（F）Record arrangement（E）The fixed temperature detecting unit measured value of middle stabilization is ambient temperature value in baking oven；
（G）Environment temperature in baking oven is set to be controlled by thermocouple A, by ambient temperature value T in baking ovenDIt is set as step
Suddenly（F）Fixed temperature detecting unit measured value.
（3）Preset temperature value, is cooperated by micro-control unit and fixed temperature detecting unit, by environment in baking oven
Temperature setting is test temperature；
（4）The simulated failure on LED control devices to be measured, at least 1 is laid in the measurement position of shell LED control devices to be measured
Individual portable temperature detecting unit；
（5）Carry out malfunction test.
Wherein, LED control devices to be measured are connected with lamp, make LED control devices at 0.9 times~1.1 times of rated voltage
Worked under any voltage, and its skin temperature is maintained at TC.LED control devices to be measured are made to work and reach under normal operation
Environment temperature in thermal equilibrium state, chamber should be able to reach the temperature of control device shell（）℃.Now, Thermal protection
Device should not start.
If necessary, the electric current by winding should slowly and be continuously increased, until thermal protector starts.Time interval and electricity
Stream increment should be able to make to reach thermal balance as far as possible between the temperature on the control device surface of winding temperature and lamp.Lamp should continuously be measured
Control device surface maximum temperature.
For the control device of the lamp equipped with automatic thermal protector, it should continue to when surface temperature reaches stable state and be
Only.Make the thermal protector work that automatically resets by way of being switched on or off the control device of lamp intermittently under prescribed conditions
Three times.
For the control device of the lamp equipped with Hand-reset thermal protector, above-mentioned repetition repeats six times, per minor tick
30min.At the end of each 30min intervals, thermal protector should reset.
Control device for the lamp equipped with non-renewable non-reset formula thermal protector and equipped with renewable non-reset formula heat
The control device of the lamp of protector, only carries out a test.
In above-mentioned test, if the maximum temperature at any position is no more than mark on the LED control devices surface to be measured of lamp
Will value, then LED control devices to be measured are qualified.
As tolerance, within the 15min after thermal protector start-up operation, it is allowed to LED control devices surface to be measured
Temperature exceed value of statistical indicant 10%, during this period after, then value of statistical indicant is not to be exceeded.
Embodiment 2
The present embodiment is to test intelligent checking system for thermal protector current failure.Wherein, intelligent checking system includes connecting
It is connected to the current detecting unit between control device to be measured and micro-control unit.Current detecting unit is used to detect LED controls to be measured
Each road electric current of device.
Each road of LED control devices is controlled to export by industry control unit.
Testing process is：
Except second step to nonserviceable in settings button dialog box, ceiling temperature value need to be inputted, that is, maximum temperature is nominal
Value is outer, and remaining step is same as Example 1.
Wherein it is used for determining the actuation time of thermal protector according to the change of LED control devices input current to be measured, in heat
Before protector action and after action, whether automatic monitoring shell maximum temperature is exceeded the 10% of value of statistical indicant and value of statistical indicant by system.
Embodiment 3
The present embodiment is on the basis of embodiment 1, measuring transformer heating.LED control devices to be measured are prevented in an oven, just
Often under the conditions of and skin temperature can be reached（）DEG C environment temperature under work and reach thermal equilibrium state.
Process is：
Step in embodiment 1（3）It is changed to, portable temperature-detecting device, the present embodiment is arranged at the winding of test sample
In be thermocouple, under normal work and abnormal working conditions, the winding temperature rise of test sample product, presets winding temperature rise limit value respectively,
Remaining step be the same as Example 1.
Abnormality：Using carried out under the 90%~110% of rated supply voltage any voltage it is following test into
Performing check：1h on LED control devices to be measured should be all applied to.
In the present embodiment, industry control unit is used for the output state for controlling LED control devices, including LED control devices to be measured are set
It is set to constant pressure output type control device or constant current output type control device.
Constant pressure output type control device has the output of at least 2 tunnels, will connect every a pair corresponding output open circuits of LED module,
Simultaneously switch off every a pair corresponding outputs of all connection LED modules；The LED for being twice in the connection of constant pressure output-controlling device is set
Module or equivalent load are connected in parallel in the output of constant pressure output-controlling device.
In addition, constant current output type control device has the output of at least 2 tunnels, every a pair corresponding outputs of LED module will be connected
Open circuit, simultaneously switches off every a pair corresponding outputs of all connection LED modules；Setting is twice in the connection of constant pressure output-controlling device
LED module or equivalent load be connected in the output of constant pressure output-controlling device；Successively by every a pair corresponding connection LED modules
Output short-circuit.
Test process：
Input service voltage, load voltage and electric current during input control device normal work select LED control devices class to be measured
Type, including constant-pressure type and constant-current type, select test event successively, click on and set determination, return to abnormality test interface, click on
Testing button is tested.System is by self-clocking, and each testing time is 1h.
Although illustrative embodiment of the invention is described above, in order to the technology of the art
Personnel are it will be appreciated that the present invention, but the present invention is not limited only to the scope of embodiment, to the common skill of the art
For art personnel, as long as long as various change is in the spirit and scope of the invention that appended claim is limited and is determined, one
The innovation and creation using present inventive concept are cut in the row of protection.
Claims (9)
1. a kind of intelligent checking system of LED control devices, including baking oven, LED control devices to be measured are located in baking oven, its feature
It is：The intelligent checking system also includes the fixed temperature detecting unit of at least one being located in baking oven, and positioned to be measured
The portable temperature detecting unit of at least one of LED control device shells, it is single with the first temperature detecting unit and second temperature detection
The micro-control unit connection that member is connected jointly, the host computer being connected with micro-control unit；
The fixed temperature detecting unit is used to detect and feed back environment temperature in baking oven；
The portable temperature detecting unit is used for the temperature for detecting LED control devices shell correspondence position to be measured.
2. the intelligent checking system of LED control devices according to claim 1, it is characterised in that：The Intelligent Measurement system
System also includes the current detecting unit being connected between control device to be measured and micro-control unit.
3. the intelligent checking system of LED control devices according to claim 1, it is characterised in that：The Intelligent Measurement system
System also includes the industry control unit being connected with LED control devices to be measured, and the industry control unit is used for the output for controlling LED control devices
State, including LED control devices to be measured are set to constant pressure output type control device or constant current output type control device.
4. the method for the intelligent checking system of LED control devices according to claim 3, it is characterised in that：The constant pressure
Output type control device has the output of at least 2 tunnels, will connect every a pair corresponding output open circuits of LED module, simultaneously switches off all
Connect every a pair corresponding outputs of LED module；The LED module or equivalent negative for being twice in the connection of constant pressure output-controlling device are set
Load is connected in parallel in the output of constant pressure output-controlling device.
5. the method for the intelligent checking system of LED control devices according to claim 3, it is characterised in that：The constant current
Output type control device has the output of at least 2 tunnels, will connect every a pair corresponding output open circuits of LED module, simultaneously switches off all
Connect every a pair corresponding outputs of LED module；The LED module or equivalent negative for being twice in the connection of constant pressure output-controlling device are set
Load is connected in the output of constant pressure output-controlling device；Successively by the output short-circuit of every a pair corresponding connection LED modules.
6. the method for the intelligent checking system based on any described LED control devices of claim 1-5, it is characterised in that：Institute
The method of stating includes：
（1）LED control devices to be measured are put into baking oven, baking oven is opened, LED control devices to be measured is connected with power supply；
（2）When intelligent checking system Automatic-searching can make LED control devices normal work to be measured, LED control devices shell is surveyed
Temperature at examination position reaches TCIt is worth ambient temperature value T in corresponding baking ovenD；
（3）Preset temperature value, is cooperated by micro-control unit and fixed temperature detecting unit, by environment temperature in baking oven
It is set to test temperature；
（4）The simulated failure on LED control devices to be measured, at least 1 is laid in the measurement position of shell LED control devices to be measured
Individual portable temperature detecting unit；
（5）Carry out malfunction test.
7. the method for the intelligent checking system of LED control devices according to claim 6, it is characterised in that：The LED controls
Temperature at crust of the device test position processed reaches TCIt is worth ambient temperature value T in corresponding baking ovenDIncluding：
（A）The environment temperature defined in baking box is controlled by portable temperature detecting unit；
（B）Using host computer, specified test temperature value T at LED control device shell test positions is definedC；
（C）The ambient temperature value in baking oven is measured using fixed temperature detecting unit；
（D）Portable temperature detecting unit is placed at control device test position, starts LED control devices, makes LED control dresses
Put after normal work, portable temperature detecting unit measurement value stabilization, portable temperature detecting unit measured value is designated as T2；
（E）Start the environment temperature in baking oven power supply, lifting baking oven, the measured value T of portable temperature detecting unit3Equal to specified
Test temperature value TC, fixed temperature detecting unit measurement value stabilization；
（F）Record arrangement（E）The fixed temperature detecting unit measured value of middle stabilization is ambient temperature value in baking oven；
（G）Environment temperature in baking oven is set to be controlled by thermocouple A, by ambient temperature value T in baking ovenDIt is set as step
Suddenly（F）Fixed temperature detecting unit measured value.
8. the method for the intelligent checking system of LED control devices according to claim 7, it is characterised in that：It is described default
Temperature value is TDOr the ceiling temperature T needed for malfunction test processMAX。
9. the method for the intelligent checking system of LED control devices according to claim 6, it is characterised in that：It is described to be measured
The input voltage of LED control devices is 0.9 times of rated voltage~1.1 times rated voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576266.4A CN107271821A (en) | 2017-07-14 | 2017-07-14 | The intelligent checking system and method for a kind of LED control devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576266.4A CN107271821A (en) | 2017-07-14 | 2017-07-14 | The intelligent checking system and method for a kind of LED control devices |
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| CN107271821A true CN107271821A (en) | 2017-10-20 |
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| CN105258924A (en) * | 2015-11-06 | 2016-01-20 | 苏州耀腾光电有限公司 | Comprehensive tester for LED light |
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| CN102193053A (en) * | 2010-03-08 | 2011-09-21 | 上海时代之光照明电器检测有限公司 | Method for measuring relation curve of forward voltage and junction temperature of LED (Light Emitting Diode) in lamp |
| CN101835313A (en) * | 2010-05-19 | 2010-09-15 | 北京中庆微数字设备开发有限公司 | LED control device with current monitoring function |
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| CN202351701U (en) * | 2011-11-16 | 2012-07-25 | 重庆四联光电科技有限公司 | Device for detecting terminal controller board of LED control system |
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Application publication date: 20171020 |