TWI887111B - LED spectrometer detection device and detection method thereof - Google Patents

Abstract

The present invention is a type of LED spectrometer detection device and the detection method thereof, comprising: a main body, a light homogenizing plate, a first transparent plate, a partition, and a detection device. The detection device further includes: multiple light source emitters, a receiver, a control chamber, and a fixed connection device. Moreover, the control device further includes: a microcontroller, a memory unit, a display unit, and a power unit. The light source emitters emit light towards the light homogenizing plate to sequentially scan the object under test. When the measurement light hits the object, the light signal either reflects back or continues forward, and is received by the receiver. The signal is then sent to the microcontroller in the control device within the control chamber, where it is processed, compared, and analyzed to form a specific spectrum. The microcontroller retrieves stored spectral information from the memory unit for further processing, comparison, and analysis. Finally, the results are stored back into the memory unit and output to the display unit to notify the operator. This enables rapid scanning of the test object, allowing for a quick determination of whether the object is abnormal, thereby improving detection speed, enhancing detection efficiency, and expanding the range of detectable objects.

Description

LED spectrometer detection device and detection method

The present invention is an LED spectrometer detection device and a detection method thereof. More specifically, it refers to a spectrum established by quickly scanning the object to be tested, which is used to quickly determine whether the object is abnormal. The relatively simple structure can achieve the purpose of quickly detecting the object, which not only improves the detection efficiency, but also reduces the detection cost.

The known spectrometer detection device is to analyze the composition and properties of the substance by establishing the spectrum of the measured light. It is usually used in various aspects such as element analysis, molecular structure analysis, qualitative and quantitative analysis of substances, food and agricultural analysis, etc., and its application range is quite wide. However, it has the following three major disadvantages. First, the structure is complex and the price is expensive, so it cannot be widely used. Second, the operation is complicated and only skilled personnel can operate it flexibly, which limits its scope of use. Third, it takes a long time to obtain the test results after the test, which easily leads to poor detection efficiency.

In addition, the whiteness detection device of the patent No. 94126592 applied by the applicant in this case is composed of a housing, a space for accommodating the object to be detected, a measuring unit, a display unit and a power supply unit. Among them, the ladle-shaped space for accommodating the object to be detected is located at the front end of the housing, and a movable upper cover is provided on it. The measuring unit and the power supply unit are arranged in the housing, and the display unit is arranged on the surface of the housing. A transparent substrate is arranged between the measuring unit and the space for accommodating the object to be detected. The aforementioned measuring unit is further composed of a light source generator, a uniform light plate, a light sensor and a control circuit. Among them, the light source generator, light sensor, power supply unit and display unit are all electrically connected to the control circuit, and the light sensor is set at the front end of the measuring unit and located on one side of the transparent substrate, the light source generator is relatively located at the rear end of the light sensor and the direction of its light source emission is toward the direction of the light sensor, and the uniform light plate is set between the light sensor and the light source generator. The light source is generated by the light source generator and irradiated on the object to be tested, and then the intensity of the reflected light is compared. It is used to determine the whiteness of the white rice during the pressing and refining process. Because it can only detect the degree of whiteness of rice, the detection function and scope are relatively limited. However, the previous patent case is still used as a reference for this case.

This invention is a new invention mainly aimed at addressing the shortcomings of the aforementioned conventional spectrometer detection device.

The main purpose of this invention is an LED spectrometer detection device and a detection method thereof. Through the design of the detection device and the control device, the object to be detected can be quickly scanned to obtain a specific spectrum, and then the object can be quickly determined to be abnormal, thereby improving the detection efficiency.

Another purpose of the present invention is to provide an LED spectrometer detection device and a detection method thereof, which uses visible light or invisible light to perform proportional sequential scanning or non-proportional sequential scanning to increase the range of detectable objects and enhance the ability to detect objects.

Another purpose of the present invention is to provide an LED spectrometer detection device and a detection method thereof, which can achieve the function of rapid detection of objects with a relatively simple structure, thereby reducing costs.

In order to achieve the purpose of the present invention, the present invention is an LED spectrometer detection device, comprising: a body, a light-distributing plate, a first transparent plate, a partition, and a detection device; wherein the detection device is arranged on one side of the body; the light-distributing plate is adjacent to the detection device at a predetermined distance so that the light can be evenly distributed and penetrated; the first transparent plate is adjacent to the light-distributing plate at a predetermined distance; the partition is adjacent to the first transparent plate at a predetermined distance; the detection device further comprises: a plurality of light source emitters, a receiver, a control room, and a fixed connection device; the plurality of light source emitters are arranged at a predetermined position around one end of the detection device; the receiver is arranged in the center of the detection device, It is connected to the light source transmitter signal to receive the signal after the signal hits the object to be tested; the control room is set at the other end of the detection device and the control device is stored inside it; the fixed connection device is set at a predetermined position of the detection device to fix the detection device to the main body; the control device further includes: a microcontroller, a memory unit, a display unit, and a power unit; the memory unit is connected to the microcontroller signal to provide data storage; the display unit is connected to the microcontroller signal to output and display the results of the microcontroller calculation, comparison, and analysis; the power unit provides power to the light source transmitter, receiver, microcontroller, and display unit. A LED spectrometer detection method includes: a body, a homogenizing plate, a first transparent plate, a partition, and a detection device; the detection device further includes: a plurality of light source emitters, a receiver, a control room, and a fixed connection device; the control device further includes: a microcontroller, a memory unit, a display unit, and a power supply unit; the characteristics are: firstly, the light source emitter emits light toward the homogenizing plate to sequentially scan the object to be tested; the equivalent measurement When light hits the object to be tested, the reflected or continued light signal is received by the receiver. The signal is then sent to the microcontroller of the control device in the control room, which forms a specific spectrum through calculation, comparison, and analysis. The microcontroller then grabs the stored spectrum information from the memory unit for subsequent calculation, comparison, and analysis. Finally, the result is stored back in the memory unit and output to the display unit to notify the operator.

For the purpose of detailed description, the following embodiments are specifically cited for explanation, however, these embodiments are not intended to limit the present invention.

10: Body

12: Evenly-lit plate

13: Buffer room

14: First transparent plate

15: Test object storage room

16: Partition

18: Second transparent plate

20: Detection device

22: Light source emitter

24: Receiver

26: Control Room

28: Fixed connection device

30: Control device

32: Microcontroller

34: Memory unit

36: Display unit

38: Power unit

41: First time

42: Second time

Figure 1 is a schematic diagram of the first embodiment of the LED spectrometer detection device of the present invention.

Figure 2 is a three-dimensional schematic diagram of the detection device of the present invention.

Figure 3 is a block diagram of the control device of the present invention.

Figure 4 is a schematic diagram of the second embodiment of the LED spectrometer detection device of the present invention.

Figure 5 is a schematic diagram of the first embodiment of the LED spectrometer detection method of the present invention.

Figure 6 is a schematic diagram of the second embodiment of the LED spectrometer detection method of the present invention.

Figure 7 is a schematic diagram of the third embodiment of the LED spectrometer detection method of the present invention.

In order to help the review committee to further understand the technical features and means of the present invention, a specific embodiment and diagrams are provided to explain it in detail as follows:

The present invention discloses an LED spectrometer detection device. Please refer to Figures 1, 2, and 3 at the same time. Figure 1 is a schematic diagram of the first embodiment of the LED spectrometer detection device. Figure 2 is a three-dimensional schematic diagram of the detection device of the present invention. Figure 3 is a block diagram of the control device of the present invention. The LED spectrometer detection device includes: a body 10, a homogenizing plate 12, a first transparent plate 14, a partition 16, and a detection device 20. The detection device 20 further includes: a plurality of light source emitters 22, a receiver 24, a control room 26, and a fixed connection device 28. A detection device 20 is disposed on one side of the body 10, and a light-smoothing plate 12 is disposed adjacent to the detection device 20 at a predetermined distance, so that the LED light emitted by the light source emitter 22 can be evenly distributed and penetrated. A first transparent plate 14 is disposed adjacent to the light-smoothing plate 12 at a predetermined distance, and the space between the light-smoothing plate 12 and the first transparent plate 14 forms a buffer chamber 13. The first transparent plate 14 allows the LED light emitted by the light source emitter 22 to penetrate smoothly. A partition 16 is disposed adjacent to the first transparent plate 14 at a predetermined distance, and the space between the first transparent plate 14 and the partition 16 forms a chamber 15 for accommodating an object to be detected. The partition 16 is used to restrain the object to be tested and define a chamber 15 for containing the object to be tested. A plurality of light source emitters 22 are provided at one end of the detection device 20 and are provided at predetermined positions around the detection device 20 to emit LED light toward the light-distributing plate 12. This embodiment and its diagram use the number 4 as an example for illustration and are not intended to limit the present invention. A receiver 24 is provided at the center of the detection device 20 and is signal-connected to the light source emitter 22 to receive the light reflected from the object to be tested. A control chamber 26 is provided at the other end of the detection device 20 to accommodate a control device 30 therein. A plurality of fixed connection devices 28 are provided at predetermined positions of the detection device 20 to fixedly connect the detection device 20 to the main body 10. The control device 30 further includes: a microcontroller 32, a memory unit 34, a display unit 36, and a power unit 38. The microcontroller 32 is connected to the receiver 24 by signal, and measures, calculates, analyzes and compares the signal. The memory unit 34 is connected to the microcontroller 32 by signal, and provides data storage. The display unit 36 is connected to the microcontroller 32 by signal, so as to output and display the results of the analysis, calculation and comparison of the microcontroller 32 to inform the operator. The power unit 38 provides power to the light source emitter 22, the receiver 24, the microcontroller 32, the display unit 36 and other components. The power unit 38 can be selected as a battery, an external power supply, or other power supply devices. The operation method is to first put the object to be tested into the object storage chamber 15, and then the light source emitter 22 of the detection device 20 emits LED light towards the homogenizing plate 12, and then passes through the buffer chamber 13 and the first transparent plate 14, hitting the object to be tested. The reflected signal is received by the receiver 24, and then the signal is sent to the microcontroller 32 of the control device 30 in the control room 26. The data generated by the interaction between the measured light and the object to be tested is combined and established to form a specific spectrum through calculation and analysis. The microcontroller 32 then captures the stored spectrum information from the memory unit 34 for subsequent comparison and analysis, and stores the results back into the memory unit 34, and outputs the display unit 36 to notify the operator.

Please refer to Figures 2, 3, and 4 at the same time. Figure 4 is a schematic diagram of the second embodiment of the LED spectrometer detection device of the present invention. The LED spectrometer detection device of this embodiment also includes: a body 10, a homogenizing plate 12, a first transparent plate 14, a second transparent plate 18, and a detection device 20. The detection device 20 further includes: a plurality of light source emitters 22, a receiver 24, a control room 26, and a fixed connection device 28. The main difference is that the original partition 16 is replaced by the second transparent plate 18, so that the light emitted by the light source emitter 22, which hits the object to be detected and continues to move forward, can smoothly penetrate the second transparent plate 18. In addition, the receiver 24 of the detection device 20 will be separated and installed separately at the other end of the body 10 relative to the light source emitter 22, so that the light that hits the object to be tested and continues to move forward and penetrates the second transparent plate 18 can be received by the receiver 24. The operation method is to first put the object to be tested into the object storage chamber 15, and then the light source emitter 22 of the detection device 20 emits LED light toward the uniform light plate 12. After passing through the buffer chamber 13, the light signal passes through the first transparent plate 14, hits the object to be tested and continues to move forward, penetrates the second transparent plate 18 and is received by the receiver 24, and finally sends the signal to the control room 26 for calculation, analysis and comparison by the control device 30. The principle is the same as the previous embodiment and will not be repeated.

Please refer to Figures 1 to 5 for the LED spectrometer detection method of the present invention. Figure 5 is a schematic diagram of the first embodiment of the LED spectrometer detection method of the present invention. It uses LED visible light with a wavelength range of 450 to 750 nanometers (nm). This embodiment uses blue light, represented by the English letter B in the diagram; green light, represented by the English letter G in the diagram; and red light, represented by the English letter R in the diagram. This embodiment uses the three primary colors of light as an example for illustration and is not intended to limit the present invention. The horizontal axis in the diagram represents wavelength, the vertical axis represents brightness, and the scale is only a schematic expression for illustration and is not a strict limitation. When the light source emitter 22 first emits LED blue light toward the homogenizing plate 12, the wavelength is increased in a geometric manner and the brightness is gradually reduced; then the green light is emitted, the wavelength is increased in a geometric manner and the brightness is gradually increased; in the same way, the red light is emitted to sequentially scan the object to be tested in the object storage chamber 15. When the measuring light hits the object to be tested, the light reflected back (or continuing to move forward) is received by the receiver 24, and then the signal is sent to the microcontroller 32 of the control device 30 in the control room 26. The data generated by the interaction between the measuring light and the object to be tested is combined through calculation and analysis to establish a specific spectrum. The microcontroller 32 then captures the stored spectrum information from the memory unit 34 for subsequent comparison and analysis, stores the result back into the memory unit 34, and outputs it to the display unit 36 to inform the operator. The operation steps are as follows: first, a normal object to be tested is placed in the object storage chamber 15 for a round of equal comparison sequence scanning to obtain a set of spectrum data of the normal object to be tested, which is stored in the memory unit 34. Then, an unknown object to be tested is placed in the object storage chamber 15 for another round of equal comparison sequence scanning to obtain a set of spectrum data of the unknown object to be tested. The two sets of data are calculated, compared, and analyzed by the microcontroller 32 to quickly determine whether the unknown object to be tested is normal or has been contaminated. For example, the operator first puts a normal lard into the test object storage chamber 15 for isochronous scanning to obtain a set of spectral data of the normal lard, and then puts the unknown lard to be tested into the test object storage chamber 15 for another round of isochronous scanning to obtain the spectral data of the unknown lard to be tested. The two sets of data are sent to the microcontroller 32 for calculation, comparison, and analysis, so as to quickly determine whether the unknown lard is normal, has been contaminated, or has expired and deteriorated abnormally, and the information is displayed on the display unit 36. Of course, if the spectrometer detection device of the second embodiment is used, when the light hits the object to be detected, it penetrates the second transparent plate 18 and is received by the receiver 24, and then the signal is sent to the microcontroller 32 of the control device 30 in the control room 26 for subsequent calculation, comparison, analysis and other operations. Please refer to Figure 6, which is a schematic diagram of the second embodiment of the LED spectrometer detection method of the present invention. In order to make the detection range wider, the measurement light emitted by the light source emitter 22 is expanded from visible light to cover invisible light. Ultraviolet light with a wavelength range of 10 to 400 nanometers (nm) is represented by the letters UV in the diagram; infrared light with a wavelength range of 700 nanometers to 1 millimeter is represented by the letters IR in the diagram, and added to the LED spectrometer detection device. The ratio sequential scanning method and the principle of comparison operation are as mentioned above and will not be repeated. Because the wavelength range of ratio sequential scanning is wider, the range of detection options is wider, and the types of objects that can be detected are also improved.

Please refer to Figures 1, 2, 3, 4, and 7 at the same time. Figure 7 is a schematic diagram of the third embodiment of the LED spectrometer detection method of the present invention. In order to improve the detection range, non-uniform sequential scanning is further adopted. In Figure 7, the light source emitted at the first time 41 is a measuring light of a series of wavelengths with an unfixed ratio, and the light source emitted at the second time 42 is another set of measuring light of a series of wavelengths with an unfixed ratio, and the measuring light of a series of wavelengths with an unfixed ratio is continuously emitted at the third, fourth, fifth, ... time (not shown). When the light hits the object to be tested, the reflected (or continued) measuring light is received by the receiver 24, and then the signal is sent to the microcontroller 32 of the control device 30 in the control room 26. The data generated by the interaction between the measuring light and the object to be tested is combined through calculation and analysis to establish a specific spectrum. The microcontroller 32 then captures the stored spectrum information from the memory unit 34 for subsequent comparison and analysis to identify whether the object to be tested is normal. The method and principle are the same as above and will not be repeated. Because it is a non-equivalent sequential scan, the range of detectable objects can be increased, and the scope of use and selection flexibility can be improved. And this embodiment can also choose to use visible light or visible light covering invisible light.

In summary, the LED spectrometer detection device and its detection method of the present invention can quickly scan the object to be detected by setting the detection device and the control device to obtain a specific spectrum, and quickly determine whether the object is abnormal, which is suitable for industrial use. The present invention uses visible light or invisible light to perform proportional sequential scanning or non-proportional sequential scanning, which can not only improve the detection speed, but also improve the range of detectable objects and increase the selectivity of detection. It is more effective than the known technology and has progressiveness. In addition, the present invention has not been seen in publications before the application, and its novelty is beyond doubt. The present invention complies with the provisions of the Patent Law, and therefore an application for an invention patent is filed in accordance with the law. I pray that you will review and grant the patent, which is a great convenience.

20: Detection device

22: Light source emitter

24: Receiver

26: Control Room

28: Fixed connection device

Claims (10)

An LED spectrometer detection device comprises: a main body, a homogenizing plate, a first transparent plate, a partition, and a detection device; wherein, The main body has a detection device disposed on one side; The uniform light plate is adjacent to the detection device at a predetermined distance so that the light can be evenly distributed and penetrated; The first transparent plate is adjacent to the light-distributing plate and is spaced a predetermined distance apart; The partition is adjacent to the first transparent plate and spaced a predetermined distance apart; Its characteristics are: The detection device further includes: multiple light source transmitters, receivers, a control room, and a fixed connection device; The plurality of light source emitters are disposed at predetermined locations around one end of the detection device; The receiver is located in the center of the detection device and is connected to the light source transmitter signal to receive the signal after the light source hits the object to be tested; The control room is located at the other end of the detection device and houses the control device inside; The fixed connection device is arranged at a predetermined position of the detection device to fix the detection device to the main body; The control device further includes: a microcontroller, a memory unit, a display unit, and a power supply unit; The microcontroller is connected to the receiver signal and can perform calculation, comparison and analysis operations on the measurement light; the memory unit is connected to the microcontroller signal and provides data storage; the display unit is connected to the microcontroller signal to output and display the results of the microcontroller calculation, comparison and analysis; the power unit is used to provide power to the light source emitter, receiver, microcontroller and display unit. As described in the first item of the patent application scope, the LED spectrometer detection device, wherein the space between the homogenizing plate and the first transparent plate forms a buffer chamber. As described in the first item of the patent application scope, the LED spectrometer detection device, wherein the space between the first transparent plate and the partition forms a chamber for accommodating the object to be tested. As described in the first item of the patent application scope, the LED spectrometer detection device, wherein the partition is a second transparent plate that can transmit light, and the receiver is installed separately at the other end of the body relative to the light source emitter. As described in Item 1 of the patent application scope, the LED spectrometer detection device, wherein the power unit can be selected as a battery, an external power supply, or other power supply device. A method for detecting an LED spectrometer comprises: a body, a homogenizing plate, a first transparent plate, a partition, and a detecting device; the detecting device further comprises: a plurality of light source emitters, a receiver, a control room, and a fixed connection device; the control room is arranged at one end of the detecting device and contains the control device therein; the control device further comprises: a microcontroller, a memory unit, a display unit, and a power supply unit; the method is characterized in that: firstly, the light source emitter is directed toward the homogenizing plate; The measuring light is emitted in a certain direction and scans the object to be tested in sequence: when the measuring light hits the object to be tested, the reflected light or the light signal that continues to move forward is received by the receiver; then the signal is sent to the microcontroller of the control device in the control room, and a specific spectrum is formed through calculation, comparison and analysis; the microcontroller then grabs the stored spectrum information from the memory unit for subsequent calculation, comparison and analysis; finally, the result is stored in the memory unit and output to the display unit to notify the operator. As described in Item 6 of the patent application scope, the LED spectrometer detection method, wherein the object to be detected is scanned by using visible light in an isotropic sequential scanning or non-isotropic sequential scanning. As described in Item 6 of the patent application scope, the LED spectrometer detection method, wherein the object to be detected is scanned in an isotropic sequential scanning or non-isotropic sequential scanning covering visible light and invisible light. As described in the LED spectrometer detection method in Item 6 of the patent application scope, it is preferred that the light source emitter emits three types of visible light, red, green, and yellow, for equiproportional sequential scanning or non-equiproportional sequential scanning. As described in the LED spectrometer detection method of item 6 of the patent application scope, it is preferred that the light source emitter emits three visible lights, red, green and yellow, and two invisible lights, infrared light and ultraviolet light, for equiproportional sequential scanning or non-equiproportional sequential scanning.

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