CN114126151A - Electric parameter calibration method and device of LED power supply, storage medium and LED lamp - Google Patents
Electric parameter calibration method and device of LED power supply, storage medium and LED lamp Download PDFInfo
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- CN114126151A CN114126151A CN202111539207.2A CN202111539207A CN114126151A CN 114126151 A CN114126151 A CN 114126151A CN 202111539207 A CN202111539207 A CN 202111539207A CN 114126151 A CN114126151 A CN 114126151A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/19—Controlling the light source by remote control via wireless transmission
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Abstract
The invention discloses an electrical parameter calibration method, device, storage medium and LED lamp of an LED power supply, wherein the method comprises the following steps: acquiring a preset control instruction and a reference electrical parameter value; under the condition that the control instruction indicates that the calibration is needed, driving the LED power supply to work in a preset working mode, and acquiring an actual electric parameter value output by the LED power supply in the preset working mode; and calculating the ratio of the actual electrical parameter value to the reference electrical parameter value to obtain a calibration coefficient for calibrating the LED power supply. The technical scheme disclosed by the invention can effectively solve the problem of error in the calibration of the electrical parameters of the LED power supply in the prior art.
Description
Technical Field
The invention relates to the technical field of lighting, in particular to an electrical parameter calibration method and device of an LED power supply, a storage medium and an LED lamp.
Background
Compared with the conventional Light source, the LED (Light Emitting Diode) has the advantages of high luminous efficiency, good Light condensing property, and the like, and thus can be rapidly popularized and applied. With the wide-range use of LEDs, LED power supply technology for providing stable driving voltage or current for LEDs has also been rapidly developed.
When the LED power supply actually works, due to some discrete differences (such as operational amplification factors, differences of the separation devices, etc.) of the peripheral hardware circuits, the calibration of the electrical parameter circuit may generate a deviation, thereby causing an error in the calibration of the electrical parameter of the LED power supply.
Disclosure of Invention
The invention aims to provide a method and a device for calibrating electrical parameters of an LED power supply, a storage medium and an LED lamp, and aims to effectively solve the problem that errors exist in calibration of the electrical parameters of the LED power supply in the prior art.
According to an aspect of the present invention, there is provided an electrical parameter calibration method for an LED power supply, including: acquiring a preset control instruction and a reference electrical parameter value; under the condition that the control instruction indicates that the calibration is needed, driving the LED power supply to work in a preset working mode, and acquiring an actual electric parameter value output by the LED power supply in the preset working mode; and calculating the ratio of the actual electrical parameter value to the reference electrical parameter value to obtain a calibration coefficient for calibrating the LED power supply.
Further, the method further comprises: and comparing the calculated calibration coefficient with a preset default calibration coefficient to determine whether the LED power supply is calibrated, wherein when the calculated calibration coefficient is the same as the preset default calibration coefficient, the LED power supply is calibrated.
Further, the method further comprises: and before the preset control instruction and the reference electric parameter value are obtained, the control party configures the control instruction and the reference electric parameter value in the NFC chip based on the NFC protocol.
Further, the predetermined operation mode refers to that the LED power supply operates in a maximum power state.
Further, the obtaining the actual electrical parameter value output by the LED power supply in the predetermined operation mode includes: acquiring at least one of an actual output voltage, an actual output current and an actual output power of the LED power supply as the actual electrical parameter value.
Further, the obtaining of the preset control command and the reference electrical parameter value includes: and acquiring the control instruction and the reference electrical parameter value from the NFC chip based on an IIC protocol.
Further, the obtaining the actual electrical parameter value output by the LED power supply in the predetermined operation mode includes: reading the actual electrical parameter value from an ADC port of an electrical parameter detection circuit connected to the LED power supply.
According to another aspect of the present invention, there is provided an electrical parameter calibration apparatus for an LED power supply, comprising: the memory is used for storing preset control instructions and reference electric parameter values; the controller is electrically connected with the memory and is used for calculating a calibration coefficient based on the preset control instruction and the reference electrical parameter value; wherein the controller includes: the preset parameter acquisition unit is used for acquiring the preset control instruction and the reference electric parameter value from the memory; the actual parameter acquisition unit is used for driving the LED power supply to work in a preset working mode under the condition that the control instruction indicates that the calibration is needed, and acquiring an actual electrical parameter value output by the LED power supply in the preset working mode; and the calculating and processing unit is used for calculating the ratio of the actual electric parameter value to the reference electric parameter value so as to obtain a calibration coefficient for calibrating the LED power supply.
Further, the calculation and processing unit is further configured to compare the calculated calibration coefficient with a preset default calibration coefficient to determine whether the LED power supply is calibrated.
Further, the memory is an NFC chip and the memory is further configured to receive an indication from a controlling party based on an NFC protocol to configure the control instruction and the reference electrical parameter value.
Further, the predetermined operation mode refers to that the LED power supply operates in a maximum power state.
Further, the actual parameter obtaining unit is further configured to: acquiring at least one of an actual output voltage, an actual output current and an actual output power of the LED power supply as the actual electrical parameter value.
Further, the preset parameter obtaining unit is further configured to: and acquiring the control instruction and the reference electrical parameter value from the NFC chip based on an IIC protocol.
Further, the actual parameter obtaining unit reads the actual electrical parameter value from an ADC port of an electrical parameter detection circuit connected to the LED power supply.
According to another aspect of the invention, an LED lamp is further provided, which includes the electrical parameter calibration apparatus for an LED power supply according to any embodiment of the invention.
According to another aspect of the present invention, there is also provided a storage medium having a plurality of instructions stored therein, the instructions being adapted to be loaded by a processor to perform the electrical parameter calibration method of the LED power supply according to any one of the embodiments of the present invention.
The method has the advantages that the LED power supply is controlled to work in a preset working mode, the actual electrical parameter value output by the LED power supply in the preset working mode is obtained, the ratio of the actual electrical parameter value to the reference electrical parameter value is calculated, and the calibration coefficient for calibrating the LED power supply is obtained, so that the problem that errors exist in the calibration of the electrical parameters of the LED power supply in the prior art can be effectively solved.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
Fig. 1 is a flowchart illustrating steps of a method for calibrating an electrical parameter of an LED power supply according to an embodiment of the present invention.
Fig. 2 is a flowchart illustrating steps of a method for calibrating an electrical parameter of an LED power supply according to a second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an electrical parameter calibration apparatus of an LED power supply according to a third embodiment of the present invention.
Fig. 4 is a schematic diagram of a circuit structure of an NFC chip according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a circuit structure of a controller according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of a circuit structure of an LED power supply according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of a circuit structure of an LED power supply according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 is a flowchart illustrating steps of a method for calibrating an electrical parameter of an LED power supply according to an embodiment of the present invention. The electrical parameter calibration method of the LED power supply comprises the following steps:
step S110: and acquiring a preset control instruction and a reference electric parameter value.
For example, the user may configure the control instruction and the reference electrical parameter value through the terminal device, and of course, in this embodiment, the number of the reference electrical parameter values is not limited, and for example, the reference electrical parameter value of the LED lamp at any power may be set.
Step S120: and under the condition that the control instruction indicates that the calibration is needed, driving the LED power supply to work in a preset working mode, and acquiring an actual electric parameter value output by the LED power supply in the preset working mode.
Illustratively, when the LED lamp operates at the maximum power, the LED power supply is in the predetermined operating mode. When the actual electrical parameter value output by the LED power supply is obtained, due to the influence of the precision and accuracy of the data acquisition device, the actual electrical parameter value is generally required for 2-3 times in actual operation, and the average value of all the acquired actual electrical parameter values is calculated to be used as the actual electrical parameter value output by the LED power supply.
Step S130: and calculating the ratio of the actual electrical parameter value to the reference electrical parameter value to obtain a calibration coefficient for calibrating the LED power supply.
After the calibration coefficient is obtained, the electrical parameter value of the LED lamp can be calibrated through the calibration coefficient, for example, when the calibration coefficient is 1, that is, the electrical parameter value of the actual operation of the LED lamp is consistent with the ideal electrical parameter value, that is, the LED lamp does not need to be calibrated at this time. And when the calibration coefficient is not 1, namely the actual working electrical parameter value of the LED lamp is inconsistent with the ideal electrical parameter value, dividing the actual working electrical parameter value of the LED lamp by the calibration coefficient to obtain the electrical parameter value output by the LED power supply. The service life of the LED lamp is ensured by setting the electrical parameter value of the LED lamp at the electrical parameter value output by the LED power supply (namely, the ideal electrical parameter value).
In the first embodiment, the LED power supply is controlled to operate in a predetermined operating mode, an actual electrical parameter value output by the LED power supply in the predetermined operating mode is obtained, and a ratio of the actual electrical parameter value to the reference electrical parameter value is calculated to obtain a calibration coefficient for calibrating the LED power supply, so that accuracy of a calibration operation is significantly improved.
Fig. 2 is a flowchart illustrating steps of a method for calibrating an electrical parameter of an LED power supply according to a second embodiment of the present invention. The electrical parameter calibration method of the LED power supply comprises the following steps:
step S210: and the controller configures a control instruction and a reference electric parameter value in the NFC chip based on the NFC protocol.
The NFC protocol is typically a point-to-point connection, i.e. the controller inputs control commands and reference electrical parameter values from the terminal device, for example, via a connection between the terminal device and the NFC chip. Referring to fig. 4, the NFC chip completes communication with the terminal device through the coil, and after the NFC chip is powered up for the first time, the NFC chip communicates through the IIC protocol (i.e., the SD and SK ports) and sends out the control command and the reference electrical parameter value. The controller may be a terminal device of a user.
Step S220: and acquiring a preset control instruction and a reference electric parameter value.
Exemplarily, referring to fig. 5 in combination, fig. 5 is a schematic circuit diagram of a controller, where the controller receives a control command and a reference electrical parameter value from an NFC chip through an SD port and an SK port.
Step S230: and in the case that the control instruction indicates that the calibration is needed, driving the LED power supply to work in a preset working mode, and acquiring at least one of the actual output voltage, the actual output current and the actual output power of the LED power supply as the actual electric parameter value.
The actual electrical parameter values include an output actual voltage, an output actual current, and an output actual power of the LED power supply. The actual output current is generally used as a parameter index for the actual electrical parameter value. When the actual electrical parameter value output by the LED power supply is obtained, due to the influence of the precision and accuracy of the data acquisition device, in the actual operation, the actual electrical parameter value is generally acquired 2-3 times, and the average value of all the acquired actual electrical parameter values is calculated as the actual electrical parameter value output by the LED power supply.
It is also noted that "at least one," when used with a list of items, herein means that different combinations of one or more of the listed items may be used and that only one of each item in the list may be required. For example, "at least one of item a, item B, and item C" can include, but is not limited to, item a or item a and item B. The example can also include item a, item B, and item C, or item B and item C. In other examples, "at least one" may be, for example, without limitation, two items a, one item B and ten items C, four items B and seven items C, or some other suitable combination.
For example, the calibration factor is not limited by the ratio between the actual electrical parameter value in the predetermined operating mode and the reference electrical parameter value of the LED lamp configuration in the predetermined operating mode. When a user configures a plurality of reference electrical parameter values in other working modes (i.e. non-predetermined working modes) through the terminal device, the calibration coefficient can be calculated through the plurality of reference electrical parameter values, and the calculated ratio coefficient is fitted to obtain a more accurate calibration coefficient.
After the calibration coefficient is obtained, the electrical parameter value of the LED lamp can be calibrated through the calibration coefficient, for example, when the calibration coefficient is 1, that is, the electrical parameter value of the actual operation of the LED lamp is consistent with the ideal electrical parameter value, that is, the LED lamp does not need to be calibrated at this time. And when the calibration coefficient is not 1, namely the actual working electrical parameter value of the LED lamp is inconsistent with the ideal electrical parameter value, dividing the actual working electrical parameter value of the LED lamp by the calibration coefficient to obtain the electrical parameter value output by the LED power supply. The service life of the LED lamp is ensured by setting the electrical parameter value of the LED lamp at the electrical parameter value output by the LED power supply (namely, the ideal electrical parameter value).
The embodiment two-way control method and the device for calibrating the LED power supply have the advantages that the LED power supply is controlled to work in the preset working mode, the actual electric parameter value output by the LED power supply in the preset working mode is obtained, the ratio of the actual electric parameter value to the reference electric parameter value is calculated, and the calibration coefficient for calibrating the LED power supply is obtained, so that the accuracy of the calibration operation is obviously improved.
Fig. 3 is a schematic structural diagram of an electrical parameter calibration apparatus 1000 of an LED power supply according to a third embodiment of the present invention. The electrical parameter calibration device 1000 of the LED power supply comprises: a memory and a controller 110.
The memory is used for storing preset control instructions and reference electrical parameter values, and is exemplarily the NFC chip 120, and is further used for receiving an instruction from a controlling party based on the NFC protocol to configure the control instructions and the reference electrical parameter values. Referring to fig. 4, the NFC chip 120 completes communication with the terminal device 200 through the coil, and after the initial power-up, the NFC chip 120 transmits a control command and a reference electrical parameter value to the controller 110 through the IIC protocol (i.e., the SD and SK ports) communication.
Illustratively, the controller 110 is electrically connected to the memory for calculating a calibration coefficient based on the preset control command and the reference electrical parameter value, the controller 110 includes: a preset parameter acquisition unit 101, an actual parameter acquisition unit 102, and a calculation and processing unit 103.
The preset parameter obtaining unit 101 is configured to obtain the preset control instruction and the reference electrical parameter value from the memory. For example, the user may configure the control command and the reference electrical parameter value through the terminal device 200, but in this embodiment, the number of the reference electrical parameter values is not limited, and for example, the reference electrical parameter value of the LED lamp at any power may be set. Referring to fig. 5, the controller 110 receives the control command and the reference electrical parameter value from the NFC chip 120 through the SD and SK ports.
The actual parameter obtaining unit 102 is configured to, if the control instruction indicates "calibration is needed", drive the LED power supply 300 to operate in a predetermined operation mode, and obtain an actual electrical parameter value output by the LED power supply 300 in the predetermined operation mode. Illustratively, the LED power supply 300 is in the predetermined operating mode when the LED lamp is operating at maximum power. When the actual electrical parameter value output by the LED power supply 300 is obtained, due to the influence of the precision and accuracy of the data acquisition device, in the actual operation, 2-3 times of actual electrical parameter values are generally required, and the average value of all the acquired actual electrical parameter values is calculated as the actual electrical parameter value output by the LED power supply 300. The actual parameter obtaining unit 102 reads the actual electrical parameter value from an ADC port of the electrical parameter detecting circuit 400 connected to the LED power supply 300. Referring to fig. 5, for example, the actual output current is obtained through the AD _ Io port, the actual output voltage is obtained through the AD _ Vo port, and the actual output power can be calculated according to the actual output voltage and the actual output current.
Referring to fig. 6 and 7 in combination, the actual output voltage is transmitted through the AD _ Vo in the circuit of the LED power supply 300, and the actual output current is transmitted through the AD _ Io port in the circuit of the LED power supply 300.
The calculation and processing unit 103 is configured to calculate a ratio of the actual electrical parameter value to the reference electrical parameter value to obtain a calibration coefficient for calibrating the LED power supply 300. After the calibration coefficient is obtained, the electrical parameter value of the LED lamp can be calibrated through the calibration coefficient, for example, when the calibration coefficient is 1, that is, the electrical parameter value of the actual operation of the LED lamp is consistent with the ideal electrical parameter value, that is, the LED lamp does not need to be calibrated at this time. When the calibration coefficient is not 1, that is, the actual working electrical parameter value of the LED lamp is not consistent with the ideal electrical parameter value, the actual working electrical parameter value of the LED lamp is divided by the calibration coefficient to obtain the electrical parameter value output by the LED power supply 300. The service life of the LED lamp is ensured by setting the electrical parameter value of the LED lamp to the electrical parameter value output by the LED power supply 300 (i.e., the ideal electrical parameter value).
The embodiment controls the LED power supply to work in a preset working mode, obtains an actual electrical parameter value output by the LED power supply in the preset working mode, and calculates a ratio of the actual electrical parameter value to the reference electrical parameter value to obtain a calibration coefficient for calibrating the LED power supply, so that the accuracy of calibration operation is obviously improved.
The invention also provides an LED lamp which comprises the electrical parameter calibration device for the LED power supply in any embodiment of the invention.
The invention further provides a storage medium, wherein a plurality of instructions are stored in the storage medium, and the instructions are suitable for being loaded by a processor to execute the electrical parameter calibration method of the LED power supply according to any embodiment of the invention.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (16)
1. An electrical parameter calibration method of an LED power supply, comprising:
acquiring a preset control instruction and a reference electrical parameter value;
under the condition that the control instruction indicates that the calibration is needed, driving the LED power supply to work in a preset working mode, and acquiring an actual electric parameter value output by the LED power supply in the preset working mode;
and calculating the ratio of the actual electrical parameter value to the reference electrical parameter value to obtain a calibration coefficient for calibrating the LED power supply.
2. The method of calibrating electrical parameters of an LED power supply of claim 1, further comprising: and comparing the calculated calibration coefficient with a preset default calibration coefficient to determine whether the LED power supply is calibrated, wherein when the calculated calibration coefficient is the same as the preset default calibration coefficient, the LED power supply is calibrated.
3. The method of calibrating electrical parameters of an LED power supply of claim 2, further comprising:
and before the preset control instruction and the reference electric parameter value are obtained, the control party configures the control instruction and the reference electric parameter value in the NFC chip based on the NFC protocol.
4. The method of claim 1, wherein the predetermined operating mode is a mode in which the LED power supply operates at maximum power.
5. The method of claim 1, wherein the obtaining the actual electrical parameter value output by the LED power supply in the predetermined operating mode comprises:
acquiring at least one of an actual output voltage, an actual output current and an actual output power of the LED power supply as the actual electrical parameter value.
6. The electrical parameter calibration method of the LED power supply of claim 3, wherein the obtaining the preset control command and the reference electrical parameter value comprises:
and acquiring the control instruction and the reference electrical parameter value from the NFC chip based on an IIC protocol.
7. The method of any one of claims 1-6, wherein said obtaining the actual electrical parameter value output by the LED power supply in the predetermined operating mode comprises:
reading the actual electrical parameter value from an ADC port of an electrical parameter detection circuit connected to the LED power supply.
8. An electrical parameter calibration device for an LED power supply, comprising:
the memory is used for storing preset control instructions and reference electric parameter values;
the controller is electrically connected with the memory and is used for calculating a calibration coefficient based on the preset control instruction and the reference electrical parameter value;
wherein the controller includes:
the preset parameter acquisition unit is used for acquiring the preset control instruction and the reference electric parameter value from the memory;
the actual parameter acquisition unit is used for driving the LED power supply to work in a preset working mode under the condition that the control instruction indicates that the calibration is needed, and acquiring an actual electrical parameter value output by the LED power supply in the preset working mode; and
and the calculating and processing unit is used for calculating the ratio of the actual electric parameter value to the reference electric parameter value so as to obtain a calibration coefficient for calibrating the LED power supply.
9. The electrical parameter calibration apparatus for an LED power supply of claim 8, wherein the computing and processing unit is further configured to compare the calculated calibration coefficient with a preset default calibration coefficient to determine whether the LED power supply is calibrated.
10. The electrical parameter calibration device for LED power supplies of claim 8, wherein said memory is an NFC chip and said memory is further configured to receive an indication from a controlling based on an NFC protocol to configure said control command and reference electrical parameter value.
11. The electrical parameter calibration apparatus for an LED power supply of claim 8, wherein said predetermined operating mode is that said LED power supply operates at maximum power.
12. The electrical parameter calibration device for an LED power supply of claim 8, wherein said actual parameter obtaining unit is further configured to: acquiring at least one of an actual output voltage, an actual output current and an actual output power of the LED power supply as the actual electrical parameter value.
13. The electrical parameter calibration device for the LED power supply of claim 10, wherein the preset parameter obtaining unit is further configured to: and acquiring the control instruction and the reference electrical parameter value from the NFC chip based on an IIC protocol.
14. The electrical parameter calibration device for the LED power supply according to any one of claims 8 to 13, wherein the actual parameter obtaining unit reads the actual electrical parameter value from an ADC port of an electrical parameter detection circuit connected to the LED power supply.
15. LED lamp, characterized in that it comprises an electrical parameter calibration device for LED power supply according to any one of claims 8-14.
16. A storage medium having stored therein a plurality of instructions adapted to be loaded by a processor to perform the electrical parameter calibration method of any one of claims 1 to 7.
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| CN202111539207.2A CN114126151A (en) | 2021-12-15 | 2021-12-15 | Electric parameter calibration method and device of LED power supply, storage medium and LED lamp |
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| CN202111539207.2A CN114126151A (en) | 2021-12-15 | 2021-12-15 | Electric parameter calibration method and device of LED power supply, storage medium and LED lamp |
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