CN112327129A

CN112327129A - LED ball bubble light electrical property on-line measuring system

Info

Publication number: CN112327129A
Application number: CN202011288267.7A
Authority: CN
Inventors: 胡秀珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-02-05

Abstract

The invention provides an LED bulb lamplight electrical property online detection system, which comprises: the illumination intensity acquisition module is used for acquiring the illumination intensity of the LED bulb lamp; the voltage acquisition module is used for acquiring the voltage of the LED bulb lamp; the current acquisition module is used for acquiring the current of the LED bulb lamp; the main control module is respectively connected with the illumination intensity acquisition module, the voltage acquisition module and the current acquisition module, and is used for acquiring active power and power factor of the LED bulb lamp according to the voltage and current of the LED bulb lamp and judging whether the photoelectric performance of the LED bulb lamp is qualified or not according to the illumination intensity, the active power and the power factor of the LED bulb lamp; and the display module is connected with the main control module and is used for displaying the illumination intensity, the voltage, the current, the active power and the power factor of the LED bulb lamp. The invention has the advantages of rapid detection, convenience, high efficiency and low cost.

Description

LED ball bubble light electrical property on-line measuring system

Technical Field

The invention relates to the technical field of LED lamp detection, in particular to an LED bulb lamplight electrical property online detection system.

Background

The LED lighting has the characteristics of energy conservation, environmental protection, long service life and the like. At present, the LED bulb lamp has been widely applied to indoor lighting such as classrooms and households, lighting in markets, and the like, and particularly, under the background of increasing global energy shortage, the LED bulb lamp has a more attractive application prospect in the lighting market, and is even considered to be the largest market in the lighting field in the next 10 years.

At present, the main production mode of the LED bulb lamp is manual assembly, the detection mode is mainly offline laboratory spot inspection, and part of the detection mode adopts online detection, but the equipment is expensive. With the increase of labor cost, the trend of developing an automatic assembly production line is also, and the LED bulb lamp online detection system is used for ensuring the product quality of the assembly production line. Compared with the traditional laboratory detection, the method has the advantages of high speed and high automation degree. In addition, the lamps produced by the production line are all inspected by online detection, so that the inspection rate of the factory products is 100%, and the online detection can meet the sorting requirement of the products at a higher level, so that the quality grading of the factory products is facilitated.

Therefore, in order to more effectively solve the problem of online product quality detection of the LED bulb lamp, improve the working efficiency and reduce the production cost, an online detection system for the lighting performance and the electrical performance of the LED bulb lamp is needed to be designed.

Disclosure of Invention

The invention provides an on-line detection system for the lamplight electrical performance of an LED bulb lamp, aiming at solving the technical problems of low efficiency, inconvenience and high cost of the detection of the LED bulb lamp at present.

The technical scheme adopted by the invention is as follows:

an LED bulb lamplight electrical property online detection system comprises: the illumination intensity acquisition module is used for acquiring the illumination intensity of the LED bulb lamp; the voltage acquisition module is used for acquiring the voltage of the LED bulb lamp; the current acquisition module is used for acquiring the current of the LED bulb lamp; the main control module is respectively connected with the illumination intensity acquisition module, the voltage acquisition module and the current acquisition module, and is used for acquiring active power and power factor of the LED bulb lamp according to the voltage and current of the LED bulb lamp and judging whether the photoelectric performance of the LED bulb lamp is qualified or not according to the illumination intensity, the active power and the power factor of the LED bulb lamp; the display module is connected with the main control module and used for displaying the illumination intensity, the voltage, the current, the active power and the power factor of the LED bulb lamp.

Preferably, the lighting and electrical performance online detection system of the LED bulb further comprises: the power module is connected with the main control module and used for supplying power to the main control module, the illumination intensity acquisition module, the voltage acquisition module, the current acquisition module and the display module.

Preferably, the illumination intensity acquisition module comprises an illumination intensity sensor with a measurement range of 0 to 2000 lx.

Preferably, the voltage acquisition module comprises a voltage transformer.

Preferably, the current collection module comprises a current transformer.

Preferably, the display module comprises a liquid crystal display.

Preferably, the main control module comprises an STM32 single-chip microcomputer minimum system with an ADC conversion circuit.

Preferably, the illumination intensity sensor is in communication connection with the STM32 single chip microcomputer minimum system through RS 485.

Preferably, the power supply module comprises an LM7805 which converts to 5V direct current.

Preferably, the power module comprises an LM1117 which is converted into 3.3V direct current.

The invention can obtain the following beneficial effects:

according to the invention, the illumination intensity, the voltage and the current of the LED bulb lamp are respectively acquired by the illumination intensity acquisition module, the voltage acquisition module and the current acquisition module, whether the photoelectric property of the LED bulb lamp is qualified or not is judged by the main control module, and parameters such as the illumination intensity, the voltage and the current are displayed by the display module, so that the photoelectric property of the LED bulb lamp can be rapidly, conveniently and efficiently detected on line, and the cost is lower.

Drawings

Fig. 1 is a schematic block diagram of an online detection system for the lighting and electrical performance of an LED bulb according to an embodiment of the present invention;

fig. 2 is a block schematic diagram of an online detection system for the lighting and electrical performance of an LED bulb according to an embodiment of the present invention;

fig. 3 is a working flow chart of an online detection system for the lighting and electrical properties of an LED bulb according to an embodiment of the present invention;

FIG. 4 is a data collection interrupt routine, according to one embodiment of the present invention;

FIG. 5 is a data display interrupt routine, according to one embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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. The LED bulb lamp light and electric performance online detection system can be arranged on an automatic assembly production line of an LED bulb lamp and is used for carrying out online detection on photoelectric performance of an assembled LED bulb lamp product.

As shown in fig. 1, the online detection system for the lighting performance of the LED bulb in the embodiment of the present invention includes an illumination intensity acquisition module 10, a voltage acquisition module 20, a current acquisition module 30, a main control module 40, and a display module 50. The illumination intensity acquisition module 10 is used for acquiring the illumination intensity of the LED bulb lamp; the voltage acquisition module 20 is used for acquiring the voltage of the LED bulb lamp; the current collection module 30 is used for collecting the current of the LED bulb lamp; the main control module 40 is respectively connected with the illumination intensity acquisition module 10, the voltage acquisition module 20 and the current acquisition module 30, and the main control module 40 is used for acquiring active power and power factor of the LED bulb lamp according to the voltage and current of the LED bulb lamp and judging whether the photoelectric property of the LED bulb lamp is qualified or not according to the illumination intensity, the active power and the power factor of the LED bulb lamp; the display module 50 is connected with the main control module 40, and the display module 50 is used for displaying the illumination intensity, the voltage, the current, the active power and the power factor of the LED bulb lamp.

Further, as shown in fig. 2, the online detection system for the lighting performance of the LED bulb further includes a power module 60, the power module 60 is connected to the main control module 40, and the power module 60 is configured to supply power to the main control module 40, the illumination intensity acquisition module 10, the voltage acquisition module 20, the current acquisition module 30, and the display module 50.

In one embodiment of the present invention, the illumination intensity acquisition module 10 includes an illumination intensity sensor measuring in the range of 0 to 2000 lx.

In one embodiment of the present invention, the voltage acquisition module 20 may include an optocoupler or a voltage transformer. In view of the life span and measurement accuracy of the voltage collection module 20, it is preferable that the voltage transformer constitute the voltage collection module 20. In order to ensure that the precision of the acquired voltage is in a higher state, the range of the voltage transformer can be over 220V.

In one embodiment of the present invention, the current collection module 30 includes a current transformer. The current collection module 30 of the present invention collects alternating current, so that the current collection module 30 can be formed by using a current transformer, and the range of the current transformer can reach 1A.

In one embodiment of the present invention, the display module includes a liquid crystal display, such as 12864 liquid crystal display, which has the characteristics of low price, simple operation and meeting the design requirement.

In one embodiment of the present invention, the master control module 40 includes a STM32 single chip microcomputer minimal system with its own ADC conversion circuit. The STM32 singlechip dominant frequency can be operated at 72MHz the most, and the piece is peripheral hardware abundant, from taking 12 ADC converting circuit, has advantages such as the precision is high, conversion time is fast, satisfies this detecting system's requirement, and inside RAM of STM32 singlechip and FLASH also can satisfy this detecting system's requirement. The STM32 singlechip still can connect other photoelectric property parameter acquisition modules, has higher scalability, can adapt to the development of LED ball bubble lamp industrial chain.

In one embodiment of the invention, the illumination intensity sensor can be in communication connection with the STM32 singlechip minimum system through RS485, so that the communication reliability can be ensured.

In one embodiment of the present invention, power module 60 includes LM7805 converted to 5V DC. Specifically, the power module 60 may select a regulated power supply, and use a three-terminal regulator LM7805, and then connect to a socket or a plug of a normal circuit through an external charger interface to convert a 220V ac voltage into a +12V dc voltage through a charger, and use a chip to convert a positive voltage into a negative voltage, and convert one path of +12V voltage into a-12V voltage, and the other path of the voltage is a +12V voltage alone, and after the conversion, the voltage has a voltage of ± 12V, and then divide one path of +12V voltage to output through LM7805 voltage transformation, and then can provide 5V available voltage for other digital chips or circuits to meet the power consumption requirements of each module in the embodiment of the present invention.

In one embodiment of the present invention, the power module 60 may further include an LM1117 for converting to 3.3V DC. Specifically, an AC-to-DC module can be selected to be directly converted from 220V alternating voltage to 5V direct voltage, the size can be reduced by selecting the AC-to-DC module, and the quality of a power supply is ensured. For a 3.3V power supply, the LM1117 chip can be selected to be directly converted from 5V to 3.3V, so that the cost is saved, and the circuit is simple and reliable.

In addition, in an embodiment of the present invention, the on-line detection system for the lighting and electrical performance of the LED bulb lamp may further include a key connected to the main control module 40, and the rated power of the LED bulb lamp to be detected may be set through the key, so as to facilitate comparison of detection results of LED bulb lamps with different rated powers.

In a specific embodiment of the present invention, a working flow of the online lighting and electrical performance detection system of the LED bulb is shown in fig. 3, and includes the following steps:

s101, initializing the system.

S102, collecting voltage, current and illumination intensity.

And S103, acquiring active power and a power factor.

And S104, judging whether the photoelectric performance of the LED bulb lamp is qualified. The judgment can be specifically carried out by combining GB/T24908-2014.

And S105, judging that the LED bulb lamp is qualified.

And S106, judging that the LED bulb lamp is unqualified.

In one embodiment of the present invention, the STM32 single chip microcomputer minimal system interrupt routine may include a timer 0 data acquisition interrupt and a timer 1 data display interrupt.

As shown in fig. 4, the data collection interrupt routine includes:

s201, the initial value (1S) is reinstalled.

S202, judging whether the set value is reached. If so, step S203 is performed.

And S203, updating the data once.

The light intensity, voltage and current can be read every 1s by the data acquisition interrupt routine of the timer 0.

As shown in fig. 5, the data display interrupt routine includes:

s301, the initial value (200ms) is reinstalled.

S302, whether the set value is reached is judged. If not, executing step S303; if so, step S304 is performed.

And S303, setting rated power by adding and subtracting the keys.

And S304, updating the rated power.

Through the data display interruption program of the timer 1, the rated power of the currently set LED bulb lamp can be updated and displayed once every 200 ms.

One specific detection example is given below: the LED bulb lamp to be tested with the rated power of 30W is connected with a system in a wiring mode, the LED bulb lamp is hung at a position which is about 40cm away from the system, and data of a system test interface shows that the measured voltage of the LED bulb lamp to be tested is 240.5V, the measured current of the LED bulb lamp to be tested is 0.146A, the illumination intensity is 180Lx, the active power of the LED bulb lamp to be tested is 20.7W, and the power factor of the LED bulb lamp to be tested is 0.589. GB/T24908-2014 specifies that for an LED lamp with a rated power of not more than 60W, when the LED lamp is operated at a rated voltage and a rated frequency, the actually consumed power is not more than 110% of the rated power and not less than 80% of the rated power; when the LED lamp works under rated voltage and rated frequency, the actual power factor of the LED lamp is not lower than the nominal value by 0.05; the power factor of a lamp with a nominal value not more than 5W should not be lower than 0.4, and the power factor of a lamp with a nominal value more than 5W should not be lower than 0.7; if the lamp is a bulb lamp with high power factor, the power factor is not lower than 0.9. And judging that the tested LED bulb lamp is unqualified according to the GB/T24908-2014 specification.

In summary, according to the online detection system for the electrical performance of the LED bulb lamp in the embodiment of the present invention, the illumination intensity, the voltage and the current of the LED bulb lamp are respectively collected by the illumination intensity collection module, the voltage collection module and the current collection module, and accordingly, whether the photoelectric performance of the LED bulb lamp is qualified or not is judged by the main control module, and parameters such as the illumination intensity, the voltage and the current are displayed by the display module, so that the online detection for the photoelectric performance of the LED bulb lamp can be performed quickly, conveniently and efficiently, and the cost is low.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a LED ball bubble light electrical property on-line measuring system which characterized in that includes: the illumination intensity acquisition module is used for acquiring the illumination intensity of the LED bulb lamp; the voltage acquisition module is used for acquiring the voltage of the LED bulb lamp; the current acquisition module is used for acquiring the current of the LED bulb lamp; the main control module is respectively connected with the illumination intensity acquisition module, the voltage acquisition module and the current acquisition module, and is used for acquiring active power and power factor of the LED bulb lamp according to the voltage and current of the LED bulb lamp and judging whether the photoelectric performance of the LED bulb lamp is qualified or not according to the illumination intensity, the active power and the power factor of the LED bulb lamp; the display module is connected with the main control module and used for displaying the illumination intensity, the voltage, the current, the active power and the power factor of the LED bulb lamp.

2. The LED bulb lamplight electrical performance online detection system according to claim 1, further comprising: the power module is connected with the main control module and used for supplying power to the main control module, the illumination intensity acquisition module, the voltage acquisition module, the current acquisition module and the display module.

3. The LED bulb lamplight electrical performance online detection system according to claim 1 or 2, wherein the illumination intensity acquisition module comprises an illumination intensity sensor with a measurement range of 0 to 2000 lx.

4. The LED bulb lamplight electrical performance online detection system according to claim 3, wherein the voltage acquisition module comprises a voltage transformer.

5. The LED bulb lamplight electrical performance online detection system according to claim 4, wherein the current collection module comprises a current transformer.

6. The LED bulb lamplight electrical performance online detection system according to claim 5, wherein the display module comprises a liquid crystal display.

7. The LED bulb lamplight electrical performance online detection system according to claim 6, wherein the main control module comprises an STM32 single-chip microcomputer minimum system with an ADC conversion circuit.

8. The LED bulb lamplight electrical performance online detection system according to claim 7, wherein the illumination intensity sensor is in communication connection with the STM32 single chip microcomputer minimum system through RS 485.

9. The LED bulb lamplight electrical performance online detection system according to claim 2, wherein the power supply module comprises an LM7805 converted to obtain 5V direct current.

10. The LED bulb lamplight electrical performance online detection system according to claim 2, wherein the power supply module comprises an LM1117 which converts to obtain 3.3V direct current.