Novel stacked color recognition sensor

Abstract

The utility model discloses a novel superposition type color identification sensor which comprises a detection head, the detection head is connected with a connecting wire, the other end of the connecting wire is connected with a shell, the shell is provided with a circuit board, control keys and a display screen, the control keys are electrically connected with the display screen and the circuit board, the two groups of control keys are located on the two sides of the display screen, and the display screen is electrically connected with the circuit board. An optical filter, a receiving tube, a second circuit board, a focusing lens and a light-emitting tube are arranged in the detection head, the optical filter is arranged at the side end of the receiving tube, the focusing lens is installed on the lower side of the optical filter, the light-emitting tube is arranged on the right side of the focusing lens, and the receiving tube and the light-emitting tube are connected with the second circuit board. The method has the beneficial effects that the resolution and the brightness of detection are effectively improved, and the method has the advantages that the power of a wavelength band with low sensitivity in a photoelectric characteristic curve of the light-emitting tube and the receiving tube is enhanced or the power of a wavelength band with high sensitivity is weakened, so that the identification accuracy is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to an improvement of a color recognition sensor. Background Art

[0002] As the products currently on the market all use programs in the circuit to identify colors by setting regional settings for the intensity values ​​of light reflected from objects of different colors onto the receiving tube, the wavelengths of colors that are close to each other also differ very little, resulting in very small differences in the received values. Accurate and stable identification cannot be achieved by circuit programs alone, and circuit performance parameters are easily affected by environmental interference and change, making identification and stable operation even more difficult. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a novel superimposed color recognition sensor, which has the advantages of strengthening the power of the low-sensitive wavelength band or weakening the power of the high-sensitive wavelength band in the photoelectric characteristic curves of the light-emitting tube and the receiving tube, thereby greatly increasing the recognition accuracy, and thus solves the problem that the wavelengths of colors close to each other have a small difference, resulting in a small difference in the received values, and accurate and stable recognition cannot be achieved by circuit program alone, and the circuit performance parameters are easily affected by environmental interference and change, making recognition and stable operation more difficult.

[0004] In order to achieve the above advantages of increasing the power of the wavelength band with low sensitivity or reducing the power of the wavelength band with high sensitivity in the photoelectric characteristic curve of the light-emitting tube and the receiving tube, and further increasing the recognition accuracy, the specific technical solutions adopted by the utility model are as follows:

[0005] A novel superimposed color recognition sensor comprises a detection head, the detection head is connected to a connecting line, the other end of the connecting line is connected to a shell, the shell is provided with a circuit board, a control button, and a display screen, the control button is electrically connected to the display screen and the circuit board, two groups of the control buttons are located on both sides of the display screen, and the detection head is provided with a filter, a receiving tube, a second circuit board, a focusing lens, and a light-emitting tube, the filter is arranged at the side end of the receiving tube, the focusing lens is installed on the lower side of the filter, the light-emitting tube is arranged on the right side of the focusing lens, and the receiving tube and the light-emitting tube are connected to the second circuit board.

[0006] Furthermore, the number of the detection heads is arranged in two or more groups, and the rear sides of each two groups of the detection heads are respectively provided with a combination positioning column, a combination positioning hole and a screw hole. The positions of the combination positioning column and the combination positioning hole correspond to each other. The combination positioning column is inserted into the combination positioning hole to form a multi-way detection head, which is installed on the equipment through the screw hole.

[0007] Furthermore, a power cord for providing power is provided on the right side of the shell, and a fixing slot is provided on the bottom of the shell.

[0008] Furthermore, the connecting wire is connected to the circuit board in the shell.

[0009] Furthermore, the filter and the focusing lens are respectively arranged on the left side of the housing as the detection port. The focusing lens uses a focusing lens to focus light, thereby achieving the effect of making the emission distance farther.

[0010] Furthermore, the display screen is an LED display screen.

[0011] Compared with the prior art, the utility model provides a new type of superimposed color recognition sensor, which has the following beneficial effects:

[0012] It has the advantages of increasing the power in the less sensitive wavelength band or reducing the power in the more sensitive wavelength band in the photoelectric characteristic curve of the light-emitting tube and the receiving tube, thereby greatly increasing the recognition accuracy. It solves the problem that the wavelengths of colors that are close to each other have very small differences, resulting in very small differences in the received values, and accurate and stable recognition cannot be achieved by circuit program alone. In addition, the circuit performance parameters are easily affected by environmental interference and change, making recognition and stable operation more difficult. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 is a schematic structural diagram of Example 1;

[0015] Figure 2 is a schematic diagram of the internal structure of Example 1;

[0016] Figure 3 This is one of the structural diagrams of Example 2;

[0017] Figure 4 This is the second structural diagram of Example 2;

[0018] Figure 5 It is a schematic diagram of the internal structure of Example 2.

[0019] In the figure: second shell 1, power cord 2, shell 3, connecting wire 4, filter 6, receiving tube 7, circuit board 8, second circuit board 15, focusing lens 9, light-emitting tube 10, combined positioning hole 11, detection head 12, combined positioning column 121, combined positioning hole 122, screw hole 123, circuit board 8, control button 13, display screen 14, screw positioning hole 16, second group of combined positioning holes 11, second combined positioning column 111, mounting hole 112, positioning column 121. DETAILED DESCRIPTION

[0020] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0021] According to an embodiment of the utility model, a novel superimposed color recognition sensor is provided.

[0022] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods. Example

[0023] like Figure 1-2 As shown, a new type of superimposed color recognition sensor according to an embodiment of the utility model includes a detection head 12, the detection head 12 is connected to a connecting line 4, the other end of the connecting line 4 is connected to a shell 3, the shell 3 is provided with a circuit board 8, a control button 13, and a display screen 14, the control button 13 and the display screen 14 are electrically connected to the circuit board 8, and two groups of the control buttons 13 are located on both sides of the display screen 14, and the detection head 12 is provided with a filter 6, a receiving tube 7, a second circuit board 15, a focusing lens 9, and a light-emitting tube 10, the filter 6 is arranged at the side end of the receiving tube 7, the focusing lens 9 is installed on the lower side of the filter 6, the light-emitting tube 10 is arranged on the right side of the focusing lens 9, and the receiving tube 7 and the light-emitting tube 10 are connected to the second circuit board 15. Since the photoelectric characteristic curves of the light-emitting tube 10 and the receiving tube 7 (the emission and receiving intensities of various wavelength bands (colors) are seriously inconsistent), the wavelength band with weak emission and reception will be interfered with by the wavelength band with strong emission and reception (because although the color is different, the reflected light is less, but the emission and receiving capabilities are strong, resulting in its sensing value even exceeding the former). By using a light-emitting tube 10 and a receiving tube 7 of a single color wavelength for a single color product, the emission and receiving intensity can be individually set to not be interfered by light of other wavelength bands, or the wavelength band with strong emission and reception can be set to an intensity that does not interfere with other color wavelength bands, thereby avoiding problems that cannot be solved by sharing the transmitting tube 10 and the receiving tube 7.

[0024] In Example 1, the number of the detection heads 12 is two or more groups, and the rear sides of the two groups of detection heads 12 are respectively provided with a combination positioning column 121, a combination positioning hole 122 and a screw hole 123. The positions of the combination positioning column 121 and the combination positioning hole 122 correspond to each other. The combination positioning column 121 is inserted into the combination positioning hole 122 to form a multi-way detection head, which is then installed on the equipment through the screw hole 123.

[0025] In Embodiment 1, a power cord 2 for providing power is disposed on the right side of the housing 3 , and a fixing slot is disposed at the bottom of the housing 3 .

[0026] In Embodiment 1, the connecting wire 4 is connected to the circuit board 8 in the housing 3 .

[0027] In embodiment 1, the filter 6 and the focusing lens 9 are respectively arranged on the left side of the housing 3 as the detection port. The focusing lens 9 uses a focusing lens to focus light, thereby achieving the effect of making the emission distance farther.

[0028] In embodiment 1, the display screen 14 is an LED display screen.

[0029] In Embodiment 1, a digital-to-analog converter is provided on the edge of the circuit board 8. A digital-to-analog converter is a converter that converts a discrete signal in the form of a binary digital quantity into an analog quantity based on a standard quantity (or reference quantity).

[0030] The difference between Example 2 and Example 1 is that the installation method of the detection head 12 is different and the structure of the housing 3 is different; Example

[0031] like Figure 3-5 As shown, the difference between this embodiment and embodiment 1 is that it also includes a second shell 1, the second shell 1 is an integrated shell, and a filter 6, a receiving tube 7, a circuit board 8, a focusing lens 9, and a light-emitting tube 10 are arranged in the second shell 1, the filter 6 is arranged at the side end of the receiving tube 7, the focusing lens 9 is installed on the lower side of the filter 6, the light-emitting tube 10 is arranged on the right side of the focusing lens 9, and the receiving tube 7 and the light-emitting tube 10 are connected to the circuit board 8.

[0032] like Figure 3-5 As shown, the second shell 1 is provided with two or more groups, and the rear sides of each two groups of second shells 1 are correspondingly provided with second group combination positioning holes 11, second combination positioning columns 111 and mounting holes 112, and the second combination positioning columns 111 are inserted into the second combination positioning holes 11 to form the second shell 1 as a whole. It is installed on the device with screws through the mounting holes 112. The wavelength of the existing color gamut spectrum of visible light is generally between 380 nanometers and 750 nanometers, and the color of each 10-nanometer wavelength segment is different. The color gamut detection error of existing products is between plus and minus 20 nanometers, so the error recognition rate of color blocks is too high, and it is impossible to distinguish stably. In order to improve the detection accuracy of color blocks, one device is made for each 10-nanometer wavelength segment.

[0033] Working principle: The device is provided with an integrated structure and a split combined structure. When in use, first, through the arrangement of the filter 6, the receiving tube 7, the circuit board 8, the focusing lens 9, and the light-emitting tube 10, the object to be detected is reflected to the filter 6 through light. Since the filter 6 only allows light of a specific wavelength to pass through, it blocks or weakens light of other wavelength bands. In addition, a single-color product uses a single-color light-emitting tube 10 and a receiving tube 7, and the light-emitting receiving intensity can be individually set to not be interfered by light of other wavelength bands, or the wavelength band with strong light-emitting receiving can be set to an intensity that does not interfere with the wavelength bands of other colors, which effectively improves the detection resolution. In order to improve the detection accuracy of the color block, one device is made for every 10 nanometers (theoretically, the wavelength between 380-750 nanometers can be divided into 37 parts on average).

[0034] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of superimposed color recognition sensor, characterized in that: It comprises a detection head (12), the detection head (12) is connected to a connecting line (4), the other end of the connecting line (4) is connected to a housing (3), the housing (3) is provided with a circuit board (8), a control button (13), and a display screen (14), the control button (13) is electrically connected to the display screen (14) and the circuit board (8), two groups of the control buttons (13) are located on both sides of the display screen (14), the detection head (12) is provided with a filter (6), a receiving tube (7), a second circuit board (15), a focusing lens (9), and a light-emitting tube (10), the filter (6) is arranged at the side end of the receiving tube (7), the focusing lens (9) is installed on the lower side of the filter (6), and the light-emitting tube (10) is provided. ) is arranged on the right side of the focusing lens (9), and the receiving tube (7) and the light-emitting tube (10) are connected to the second circuit board (15); the number of the detection heads (12) is set in multiple groups, and the rear sides of each two groups of the detection heads (12) are respectively provided with a combination positioning column (121), a combination positioning hole (122) and a screw hole (123), and the positions of the combination positioning column (121) and the combination positioning hole (122) correspond to each other. The combination positioning column (121) is inserted into the combination positioning hole (122) to form a multi-channel detection head, which is installed on the equipment through the screw hole (123); a power cord (2) for providing power is arranged on the right side of the shell (3), and a mounting and fixing slot is arranged at the bottom of the shell (3).

2. According to claim 1, the novel superimposed color recognition sensor is characterized in that: The connecting wire (4) is connected to a circuit board (8) inside the housing (3).

3. According to claim 1, the novel superimposed color recognition sensor is characterized in that: The optical filter (6) and the focusing lens (9) are respectively arranged on the left side of the housing (3) corresponding to the detection port.

4. According to claim 1, the novel superimposed color recognition sensor is characterized in that: It also comprises a second shell (1), the second shell (1) is an integrated shell, and a filter (6), a receiving tube (7), a circuit board (8), a focusing lens (9), and a light-emitting tube (10) are arranged in the second shell (1), the filter (6) is arranged at the side end of the receiving tube (7), the focusing lens (9) is installed on the lower side of the filter (6), the light-emitting tube (10) is arranged on the right side of the focusing lens (9), and the receiving tube (7) and the light-emitting tube (10) are connected to the circuit board (8).

5. The novel superimposed color recognition sensor according to claim 4 is characterized in that: The second shell (1) is provided with two or more groups, and the rear sides of each two groups of the second shells (1) are correspondingly provided with second combined positioning columns (111), second combined positioning holes (11) and mounting holes (112); the second combined positioning columns (111) are inserted into the second combined positioning holes (11) to form an integrated second shell (1), and the second shell is mounted on the device with screws through the mounting holes (112).

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