CN112363080A - Double-body type independently working LED power supply - Google Patents
Double-body type independently working LED power supply Download PDFInfo
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- CN112363080A CN112363080A CN202011242494.6A CN202011242494A CN112363080A CN 112363080 A CN112363080 A CN 112363080A CN 202011242494 A CN202011242494 A CN 202011242494A CN 112363080 A CN112363080 A CN 112363080A
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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
- G01R31/40—Testing power supplies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention provides a double-body type LED power supply capable of working independently, which comprises a processing unit, a voltage sensor, a current sensor, a brightness sensor and a temperature sensor, wherein the processing unit is used for processing the LED power supply; the voltage sensor is used for detecting the output voltage of the LED power supply at a first time; the current sensor is used for detecting the output current of the LED power supply at a first time; the brightness sensor is used for detecting the brightness information of the LED lamp at a first time; the temperature sensor is used for detecting the temperature information of the LED power supply at a first time; and the processing unit is used for receiving the output voltage, the output current, the brightness information and the temperature information to obtain an LED power supply health state curve. The method and the device can obtain the health state curve of the LED power supply, are used for the evaluation standard of whether the LED power supply works normally, and can improve the evaluation accuracy of whether the LED power supply works normally.
Description
Technical Field
The invention belongs to the field of power supplies, and particularly relates to a double-body type independently working LED power supply.
Background
The LED power supply is one of power supplies, a device for supplying power to an electronic device, and a power supply. The general working voltage of the LED power supply is 3.0-3.6V. The general working current of the LED power supply ranges from several milliamperes to several amperes, but the working current of most embedded electronic products is less than 300mA, so that the 30-300 mA power supply accounts for a large proportion in variety and quantity. The current LED power supply can not meet the requirement of practical application.
Disclosure of Invention
In order to solve the problem that the current LED power supply cannot meet the requirements of practical application, the embodiment of the application provides a double-body type LED power supply capable of working independently.
In a first aspect, an embodiment of the present application provides a dual-body independently working LED power supply, including a processing unit, a voltage sensor, a current sensor, a brightness sensor, and a temperature sensor;
the voltage sensor is used for detecting the output voltage of the LED power supply at the first time and sending the detected output voltage of the LED power supply to the processing unit;
the current sensor is used for detecting the output current of the LED power supply at the first time and sending the detected output current of the LED power supply to the processing unit;
the brightness sensor is used for detecting the brightness information of the LED lamp at the first time and sending the detected brightness information of the LED lamp to the processing unit;
the temperature sensor is used for detecting the temperature information of the LED power supply at the first time and sending the detected temperature information of the LED power supply to the processing unit;
the processing unit is used for receiving the output voltage, the output current, the brightness information and the temperature information, marking the values of the output voltage, the output current, the brightness information and the temperature information in a coordinate system, and connecting the four values to obtain an LED power supply health state curve.
Wherein the processing unit is further to:
receiving an output voltage detected by the voltage sensor at a second time, an output current detected by the current sensor at the second time, brightness information detected by the brightness sensor at the second time, and temperature information detected by the temperature sensor at the second time;
marking the values of the output voltage detected at the second time, the output current detected at the second time, the brightness information detected at the second time and the temperature information detected at the second time in a coordinate system, and connecting the four values to obtain an LED power state curve at the second time;
and comparing whether the LED power supply state curve is the same as the LED power supply health state curve at the second time, if so, enabling the LED power supply to work normally at the second time, and if not, enabling the LED power supply to work abnormally at the second time.
Wherein the processing unit is further to:
the LED power supply health state curve comprises three segments formed by sequentially connecting four values of output voltage, output current, brightness information and temperature information;
the second time LED power state curve comprises three line segments formed by sequentially connecting four values of output voltage at a second time, output current at the second time, brightness information at the second time and temperature information at the second time;
if the slope difference value of the first section of the LED power supply state of health curve and the first section of the second time LED power supply state curve is in a preset range; the slope difference value of the second section of the LED power supply health state curve and the second section of the second time LED power supply state curve is within a preset range; the slope difference value of the third section of the LED power supply health state curve and the third section of the second time LED power supply state curve is within a preset range; the LED power state curve at the second time is the same as the LED power health state curve;
otherwise, the second time LED power state curve is different from the LED power health state curve.
Wherein the processing unit is further to: and when the LED power state curve is different from the LED power health state curve at the second time, sending alarm information.
The alarm device further comprises a communication module, wherein the communication module is connected with the processing unit and used for sending the alarm information to the user terminal.
Wherein, the voltage sensor is a Hall voltage sensor.
The double-body type independently working LED power supply has the following beneficial effects:
the double-body type LED power supply capable of working independently comprises a processing unit, a voltage sensor, a current sensor, a brightness sensor and a temperature sensor; the voltage sensor is used for detecting the output voltage of the LED power supply at the first time and sending the detected output voltage of the LED power supply to the processing unit; the current sensor is used for detecting the output current of the LED power supply at the first time and sending the detected output current of the LED power supply to the processing unit; the brightness sensor is used for detecting the brightness information of the LED lamp at the first time and sending the detected brightness information of the LED lamp to the processing unit; the temperature sensor is used for detecting the temperature information of the LED power supply at the first time and sending the detected temperature information of the LED power supply to the processing unit; the processing unit is used for receiving the output voltage, the output current, the brightness information and the temperature information, marking the values of the output voltage, the output current, the brightness information and the temperature information in a coordinate system, and connecting the four values to obtain an LED power supply health state curve. The method and the device can obtain the health state curve of the LED power supply, are used for the evaluation standard of whether the LED power supply works normally, and can improve the evaluation accuracy of whether the LED power supply works normally.
Drawings
Fig. 1 is a schematic diagram of a dual-body independently operating LED power supply according to an embodiment of the present application.
Detailed Description
The present application is further described with reference to the following figures and examples.
In the following description, the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance. The following description provides embodiments of the invention, which may be combined or substituted for various embodiments, and this application is therefore intended to cover all possible combinations of the same and/or different embodiments described. Thus, if one embodiment includes feature A, B, C and another embodiment includes feature B, D, then this application should also be considered to include an embodiment that includes one or more of all other possible combinations of A, B, C, D, even though this embodiment may not be explicitly recited in text below.
The following description provides examples, and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements described without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than the order described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.
As shown in fig. 1, the dual-body independent LED power supply of the present application includes a processing unit 202, a voltage sensor 201, a current sensor 203, a brightness sensor 205, and a temperature sensor 204.
The voltage sensor 201 is used for detecting the output voltage of the LED power supply at a first time and sending the detected output voltage of the LED power supply to the processing unit. A voltage sensor is a sensor that senses the measured voltage and converts it into a usable output signal. In various automatic detection and control systems, it is often necessary to track and collect high-speed alternating and direct voltage signals and perform spectrum analysis on relatively complex voltage waveforms. Such signals may be strong currents such as high voltages and large currents, weak currents with poor load capacity, or signals with small amplitude. In these cases, it is necessary to acquire voltage signals that cannot be directly measured or that do not match, using suitable voltage sensors, so as to obtain standardized, electrically isolated voltage signals.
For the measurement of alternating voltage, a voltage transformer can be used as a sensing element, namely, a voltage transformer is used for reducing the voltage of a measured voltage to an available low voltage, and then the voltage is converted into direct voltage which is in linear relation with the measured voltage through a related circuit and is sent to a data acquisition system and an A/D converter.
When the voltage to be measured is a direct-current voltage, a voltage dividing resistor can be used as a sensing element, the resistance value connected in parallel to two ends of the element to be measured should be large enough (generally, the consumed power should be controlled below 1/1000 of the rated power of the motor to be measured) so as to reduce the influence of the loss generated by the loop current on the measured value as much as possible, and for a low-voltage motor, the resistance value should be about 10K Ω. And taking a part of voltage drop of the measured voltage on the resistor as a signal, and directly sending the signal to a data acquisition system and an A/D converter.
The current sensor 203 is used for detecting the output current of the LED power supply at a first time and sending the detected output current of the LED power supply to the processing unit. The current sensor is a detection device which can sense the information of the current to be detected and convert the sensed information into an electric signal meeting certain standards or other information in required forms according to a certain rule for output so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like.
The brightness sensor 205 is configured to detect brightness information of the LED lamp at a first time, and send the detected brightness information of the LED lamp to the processing unit; the brightness sensor is a sensor which can sense the brightness of light and convert the light into a usable output signal.
The temperature sensor is used for detecting the temperature information of the LED power supply at the first time and sending the detected temperature information of the LED power supply to the processing unit; a temperature sensor (temperature transducer) refers to a sensor that senses temperature and converts it into a usable output signal. The temperature sensor is the core part of the temperature measuring instrument and has a plurality of varieties. The measurement method can be divided into a contact type and a non-contact type, and the measurement method can be divided into a thermal resistor and a thermocouple according to the characteristics of sensor materials and electronic elements.
The processing unit is used for receiving the output voltage, the output current, the brightness information and the temperature information, marking the values of the output voltage, the output current, the brightness information and the temperature information in a coordinate system, and connecting the four values to obtain an LED power supply health state curve.
The method and the device can obtain the health state curve of the LED power supply, are used for the evaluation standard of whether the LED power supply works normally, and can improve the evaluation accuracy of whether the LED power supply works normally.
In some embodiments, the processing unit 202 is further configured to: receiving the output voltage detected by the voltage sensor at the second time, the output current detected by the current sensor at the second time, the brightness information detected by the brightness sensor at the second time and the temperature information detected by the temperature sensor at the second time;
marking the values of the output voltage detected at the second time, the output current detected at the second time, the brightness information detected at the second time and the temperature information detected at the second time in a coordinate system, and connecting the four values to obtain an LED power state curve at the second time;
and comparing whether the LED power state curve is the same as the LED power health state curve at the second time, if so, enabling the LED power to work normally at the second time, and if not, enabling the LED power to work abnormally at the second time.
In some embodiments, the processing unit 202 is further configured to:
the LED power supply health state curve comprises three segments formed by sequentially connecting four values of output voltage, output current, brightness information and temperature information;
the second time LED power state curve comprises three line segments formed by sequentially connecting four values of output voltage at a second time, output current at the second time, brightness information at the second time and temperature information at the second time;
if the slope difference value of the first section of the LED power supply state of health curve and the first section of the second time LED power supply state curve is in a preset range; the slope difference value of the second section of the LED power supply health state curve and the second section of the second time LED power supply state curve is within a preset range; the slope difference value of the third section of the LED power supply health state curve and the third section of the second time LED power supply state curve is within a preset range; the LED power state curve at the second time is the same as the LED power health state curve;
otherwise, the LED power state curve at the second time is different from the LED power health state curve.
The LED power supply health state curve comprises three line segments formed by sequentially connecting four values of output voltage, output current, brightness information and temperature information, wherein the output voltage and the output current value form a first line segment, the output current and the brightness information value form a second line segment, and the brightness information and the temperature information value form a third line segment. Similarly, the second time LED power state curve forms a first line segment, a second line segment and a third line segment.
The method and the device can obtain the health state curve of the LED power supply, are used for the evaluation standard of whether the LED power supply works normally, and can improve the evaluation accuracy of whether the LED power supply works normally. In this application, rather than separately comparing measured voltage, current, luminance, temperature with standard voltage, current, luminance, temperature respectively, form the second time LED power state curve with measured voltage, current, luminance, temperature, form the LED power state curve with standard voltage, current, luminance, temperature, whether through comparing LED power state curve and second time LED power state curve the same, whether with the assurance LED power normal operating, the degree of accuracy of LED power state monitoring has been improved.
In some embodiments, the processing unit 202 is further configured to: and when the LED power state curve is different from the LED power health state curve at the second time, sending alarm information. The LED power supply further comprises a communication module, and the communication module is connected with the processing unit and used for sending the alarm information to the user terminal. The voltage sensor is a Hall voltage sensor.
It is clear to a person skilled in the art that the solution according to the embodiments of the invention can be implemented by means of software and/or hardware. The "unit" and "module" in this specification refer to software and/or hardware that can perform a specific function independently or in cooperation with other components, where the hardware may be, for example, an FPGA (Field-Programmable Gate Array), an IC (Integrated Circuit), or the like.
Each processing unit and/or module according to the embodiments of the present invention may be implemented by an analog circuit that implements the functions described in the embodiments of the present invention, or may be implemented by software that executes the functions described in the embodiments of the present invention.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
All functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A double-body type LED power supply working independently is characterized by comprising a processing unit, a voltage sensor, a current sensor, a brightness sensor and a temperature sensor;
the voltage sensor is used for detecting the output voltage of the LED power supply at the first time and sending the detected output voltage of the LED power supply to the processing unit;
the current sensor is used for detecting the output current of the LED power supply at the first time and sending the detected output current of the LED power supply to the processing unit;
the brightness sensor is used for detecting the brightness information of the LED lamp at the first time and sending the detected brightness information of the LED lamp to the processing unit;
the temperature sensor is used for detecting the temperature information of the LED power supply at the first time and sending the detected temperature information of the LED power supply to the processing unit;
the processing unit is used for receiving the output voltage, the output current, the brightness information and the temperature information, marking the values of the output voltage, the output current, the brightness information and the temperature information in a coordinate system, and connecting the four values to obtain an LED power supply health state curve.
2. The dual body independently operable LED power supply of claim 1, wherein said processing unit is further configured to:
receiving an output voltage detected by the voltage sensor at a second time, an output current detected by the current sensor at the second time, brightness information detected by the brightness sensor at the second time, and temperature information detected by the temperature sensor at the second time;
marking the values of the output voltage detected at the second time, the output current detected at the second time, the brightness information detected at the second time and the temperature information detected at the second time in a coordinate system, and connecting the four values to obtain an LED power state curve at the second time;
and comparing whether the LED power supply state curve is the same as the LED power supply health state curve at the second time, if so, enabling the LED power supply to work normally at the second time, and if not, enabling the LED power supply to work abnormally at the second time.
3. The dual body independently operable LED power supply of claim 2, wherein said processing unit is further configured to:
the LED power supply health state curve comprises three segments formed by sequentially connecting four values of output voltage, output current, brightness information and temperature information;
the second time LED power state curve comprises three line segments formed by sequentially connecting four values of output voltage at a second time, output current at the second time, brightness information at the second time and temperature information at the second time;
if the slope difference value of the first section of the LED power supply state of health curve and the first section of the second time LED power supply state curve is in a preset range; the slope difference value of the second section of the LED power supply health state curve and the second section of the second time LED power supply state curve is within a preset range; the slope difference value of the third section of the LED power supply health state curve and the third section of the second time LED power supply state curve is within a preset range; the LED power state curve at the second time is the same as the LED power health state curve;
otherwise, the second time LED power state curve is different from the LED power health state curve.
4. The dual body independently operable LED power supply of any of claims 1-3, wherein the processing unit is further configured to: and when the LED power state curve is different from the LED power health state curve at the second time, sending alarm information.
5. The dual body independently operable LED power supply of any of claims 1-3, further comprising a communication module connected to said processing unit for sending alarm information to a user terminal.
6. The dual body independently operable LED power supply of any of claims 1-3, wherein said voltage sensor is a hall voltage sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011242494.6A CN112363080A (en) | 2020-11-09 | 2020-11-09 | Double-body type independently working LED power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011242494.6A CN112363080A (en) | 2020-11-09 | 2020-11-09 | Double-body type independently working LED power supply |
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| Publication Number | Publication Date |
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| CN112363080A true CN112363080A (en) | 2021-02-12 |
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| CN202011242494.6A Withdrawn CN112363080A (en) | 2020-11-09 | 2020-11-09 | Double-body type independently working LED power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200286A (en) * | 2021-11-30 | 2022-03-18 | 昆山国显光电有限公司 | Performance evaluation method and device for luminescent material of display module |
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2020
- 2020-11-09 CN CN202011242494.6A patent/CN112363080A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200286A (en) * | 2021-11-30 | 2022-03-18 | 昆山国显光电有限公司 | Performance evaluation method and device for luminescent material of display module |
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Application publication date: 20210212 |