A multifunctional fruit and vegetable cutting detection system and method based on infrared enhancement

Abstract

A multifunctional fruit and vegetable cutting detection system and method based on infrared enhancement belongs to the technical field of fruit and vegetable cutting and processing. The equipment heats a water tank through two layers of infrared tubes, the water tank is connected to a high temperature lifting device and an ultraviolet sterilization device, a closed heat preservation box is arranged outside the infrared tube and the water tank, and product transportation channel openings are reserved on both sides of the box; the high temperature resistant device is connected to the cutting tool, the cutting tool is powered by a servo motor, and an external PLC control system is connected. The lower right side of the cutting tool is the product outlet, and the transmission device is below the outlet; the transmission device transports the sample through the multi-spectral collection area, and under the excitation of the halogen light source, the multi-spectral camera collects the product spectral data, and the cutting integrity and impurity detection are identified through the modeling analysis method. The present invention has the advantages of improving the integrity of fruit and vegetable cutting and ensuring product quality and safety.

Description

Technical Field

[0001] The invention relates to the field of food processing, and in particular to a multifunctional fruit and vegetable cutting detection system and method based on infrared enhancement. Background Art

[0002] In the process of fruit and vegetable processing, fruits and vegetables are sliced, shredded and diced to meet different application requirements. With the development and progress of society and the improvement of people's living standards, food processing companies require the production and processing process to be industrialized and automated, and consumers require food quality safety and visual and taste enjoyment. Traditional cutting processes and equipment can hardly meet the current social needs. Summary of the invention

[0003] The purpose of the present invention is to provide a multifunctional fruit and vegetable cutting detection system and method based on infrared enhancement to solve the problems of food contamination during processing, product breakage after cutting and cutting accuracy.

[0004] The technical solution of the present invention:

[0005] A multifunctional fruit and vegetable cutting detection system based on infrared enhancement, comprising a PLC controller 42, a water tank 12, a high temperature resistant conveying and lifting device 1, an infrared enhancement device 2, an ultraviolet sterilization device 3, a power system 4, a cutting device 5 and a multi-spectrum detection device 6;

[0006] The PLC controller 42 is respectively connected to the solid-state relay A23, the solid-state relay B33, the power system 4 and the sensor 66;

[0007] The high temperature resistant conveying and lifting device 1 adopts a Teflon conveyor belt 11, which has high temperature resistance, corrosion resistance and drainage functions, and includes a conveying section and a lifting section; wherein the conveying section covers the bottom of the water tank 12, which can ensure that the fruits and vegetables on the conveying section are immersed in the water of the water tank 12, and infrared enhancement devices 2 are arranged at the upper and lower positions of the water tank 12 corresponding to the conveying section. The infrared enhancement device 2 above the conveying section is used to irradiate the surface of fruits and vegetables to soften the skin of fruits and vegetables, and the infrared enhancement device 2 below the conveying section is used to heat the water in the water tank 12; the lifting section extends to the top of the water tank 12 at a certain inclination angle, and an ultraviolet sterilization device 3 is arranged above the water tank 12 corresponding to the lifting section.

[0008] The infrared enhancement device 2 includes an infrared tube cathode circuit 21, an infrared tube anode circuit 22, a solid-state relay A23 and an infrared heating tube 24; the solid-state relay A23 is connected to a PLC controller 42, and the duty cycle is controlled by the PLC controller 42 to adjust the solid-state relay A23, thereby adjusting the power of the infrared heating tube 24. The infrared heating tube 24 is distributed on the upper and lower sides of the water tank 12 to ensure uniform heating, so that the surface of fruits and vegetables is softened, so as to improve the subsequent cutting effect.

[0009] The ultraviolet sterilization device 3 includes an ultraviolet tube negative electrode circuit 31, an ultraviolet tube positive electrode circuit 32, a solid-state relay B33 and an ultraviolet sterilization tube 34; the solid-state relay B33 is connected to a PLC controller 42, and the solid-state relay B33 is controlled by the PLC controller 42 to adjust the power of the ultraviolet sterilization tube 34, so that the fruits and vegetables can be drained and sterilized by ultraviolet at the same time during the lifting section.

[0010] The inlet and outlet of the cutting device 5 are respectively connected to the tail end of the high temperature resistant conveying and lifting device 1 and the transmission device 63 of the multi-spectral detection device 6; the inlet of the cutting device 5 is at the top and the outlet is at the bottom, and the fruits and vegetables fall freely to the transmission device 63 after being cut.

[0011] The multispectral detection device 6 includes a multispectral camera 61, a focusing lens 62, a transmission device 63, a halogen lamp 64, a halogen lamp light source 65, a sensor 66, an external PC 67, a camera field of view 68 and a closed chassis 69; the closed chassis 69 is covered on the upper part of the transmission device 63 to provide a closed environment for the detection of the multispectral detection device 6; halogen lamps 64 are arranged on both sides above the transmission device 63, and the halogen lamps 64 are connected to the external halogen lamp light source 65, and the halogen lamps 64 illuminate the camera field of view 68 area on the transmission device 63; a focusing lens 62 and a multispectral camera 61 are arranged in sequence from bottom to top in the middle above the transmission device 63, and the multispectral camera 61 is connected to the external PC 67; sensors 66 are respectively arranged at the midpoint of the camera field of view 68 and the end of the transmission device 63 to detect whether the fruits and vegetables have reached the camera field of view 68, so as to start the multispectral camera 61 to shoot.

[0012] The power system 4 provides power for the transmission device 63 of the high temperature resistant conveying and lifting device 1 , the cutting device 5 , and the multi-spectrum detection device 6 .

[0013] Furthermore, a closed heat-insulating box is provided outside the infrared enhancement device 2 and the water tank 12 .

[0014] Furthermore, the cutting tools of the cutting device 5 include slicing, shredding and dicing tools, etc.

[0015] Furthermore, the halogen lamps 64 are evenly distributed to ensure that the fruits and vegetables receive light evenly from all directions and angles.

[0016] Furthermore, the camera field of view 68 is a spatial plane range of 30×30 cm on the surface of the transmission device 63, and the spatial resolution is 0.5 mm / pixel.

[0017] Furthermore, the height of the multi-spectral camera 61 and the transmission device 63 is adjustable, and the field of view size and spatial resolution are also adjustable.

[0018] Furthermore, the multi-spectral camera 61 fixes 25 bands of images, covering a wavelength range of 600-1000nm. The multi-spectral camera 61 collects spectral data information and transmits it to an external PC 67 in real time to detect the quality (foreign matter) of the sample in real time and spot check the cutting shape of the sample (cutting length, width and thickness).

[0019] A multifunctional fruit and vegetable cutting detection method based on infrared enhancement, the steps are as follows:

[0020] The high temperature resistant conveying and lifting device 1 transports fruits and vegetables through the transmission section first. At this time, the fruits and vegetables are completely immersed in the water of the water tank 12. The upper infrared enhancement device 2 performs infrared heating on the fruits and vegetables, and the lower infrared enhancement device 2 heats the water in the water tank 12. The PLC controller 42 controls the solid-state relay A23 to adjust the power of the upper and lower infrared heating tubes 24. The upper and lower infrared heating tubes 24 soften the surface of different types of fruits and vegetables to different degrees, avoiding excessive drying of the skin of fruits and vegetables, which can ensure the softening effect of the skin and ensure that the fruits and vegetables are not damaged.

[0021] Afterwards, the high temperature resistant conveying and lifting device 1 transports the fruits and vegetables through the lifting section. At this time, the high temperature resistant conveying and lifting device 1 of the lifting section cooperates with the ultraviolet sterilization device 3 to drain and sterilize at the same time. The fruits and vegetables after ultraviolet sterilization enter the cutting device 5. For fruits and vegetables of different types and different requirements, the cutting device 5 uses different knives for cutting. The cut fruits and vegetables fall freely onto the transmission device 63 of the multi-spectral detection device 6.

[0022] The sensor 66 detects that the transmission device 63 transports the fruits and vegetables into the camera field of view 68, and the halogen lamps 64 on both sides illuminate the surface of the fruits and vegetables, starting the spectral image collected by the multi-spectral camera 61 and transmitting it to the external PC 67 for analysis and real-time display.

[0023] Beneficial effects of the present invention:

[0024] 1. The present invention can improve the cutting integrity of fruits and vegetables, detect whether there are foreign objects in the samples, and ensure product quality.

[0025] 2. The infrared power of the present invention is easy to control, the transmission speed is adjustable, and the detection field is adjustable, which effectively meets the needs of different fruit and vegetable cutting processes.

[0026] 3. The present invention can realize multifunctional cutting of fruits and vegetables, such as: fast ordinary cutting (slicing, shredding and dicing), sterile cutting, infrared enhanced precision cutting and finished product foreign body detection. The equipment can meet various production needs, effectively improve processing automation and ensure product quality.

[0027] 4. The infrared enhancement of the present invention heats the inside and outside of the material simultaneously, and has outstanding performance in terms of heating speed, energy saving, environmental protection and stability. The auxiliary water bath can effectively prevent dead corners from being heated. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 This is a flow chart of fruit and vegetable cutting according to the present invention.

[0030] Figure 3 It is a schematic diagram of the infrared heating structure of the present invention.

[0031] Figure 4 It is a schematic diagram of the ultraviolet sterilization structure of the present invention.

[0032] Figure 5 It is a schematic diagram of the spectrum detection structure of the present invention.

[0033] In the figure: 1 high temperature resistant conveying and lifting device; 11 Teflon conveyor belt; 12 water tank; 2 infrared enhancement device; 21 infrared tube cathode circuit; 22 infrared tube anode circuit; 23 solid state relay A; 24 infrared heating tube; 3 ultraviolet sterilization device; 31 ultraviolet tube cathode circuit; 32 ultraviolet tube anode circuit; 33 solid state relay B; 34 ultraviolet sterilization tube; 4 power system; 41 servo motor; 42 PLC controller; 5 cutting device; 6 multi-spectral detection device; 61 multi-spectral camera; 62 focusing lens; 63 transmission device; 64 halogen lamp; 65 halogen lamp light source; 66 sensor; 67 external PC; 68 camera field of view; 69 closed chassis. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] like Figures 1 to 5As shown, a multifunctional fruit and vegetable cutting equipment based on infrared enhancement includes a PLC controller 42, a water tank 12, a high temperature resistant conveying and lifting device 1, an infrared enhancement device 2, an ultraviolet sterilization device 3, a cutting device 5, a multi-spectral camera 61, a transmission device 63, a halogen lamp 64, and a closed chassis 69; the water tank 12 has infrared heating tubes 24 evenly distributed above and below, the water tank 12 is connected to the high temperature resistant conveying and lifting device 1, the high temperature resistant conveying and lifting device 1 partially covers the bottom of the water tank 12, and the lifting part performs the drainage and ultraviolet sterilization process at the same time, the high temperature resistant conveying and lifting device 1 is powered by a servo motor 41, and the motor power and infrared power are adjusted by a PLC controller 42. The right side of the high temperature resistant conveying and lifting device 1 is connected to the cutting entrance of the cutting device 5; the cutting device 5 includes slicing, shredding and dicing knives, and the product falls freely to the transmission device 63 after cutting, and the transmission device 63 transports the product through the camera field of view 68, and sends it to the equipment outlet after detection.

[0036] The infrared enhancement device 2 includes an infrared heating tube 24, a solid-state relay A23, and a PLC controller 42. The PLC controller 42 controls the duty cycle of the solid-state relay A23 to adjust the power of the infrared heating tube 24. The infrared heating tube 24 is distributed on both sides of the water tank 12 to ensure uniform heating.

[0037] The high temperature resistant conveying and lifting device 1 uses a servo motor 41 to drive a Teflon conveyor belt 11, and has high temperature resistance, corrosion resistance and water drainage functions. The servo motor 41 is externally connected to a PLC controller 42 to control the transmission and lifting speed.

[0038] The ultraviolet sterilization device 3 is a device that fixes uniformly distributed ultraviolet sterilization tubes 34 obliquely above the draining part of the high temperature resistant conveying and lifting device 1, and the ultraviolet sterilization power is not adjustable.

[0039] The multi-spectral detection device 6 is a transmission device 63 that transports the sample to the camera field of view 68. Two halogen lamps 64 illuminate the sample surface. The spectral image collected by the multi-spectral camera 61 is transmitted to the external PC 67 for analysis and real-time display. The halogen lamp 64 is externally connected to a halogen light source 65, and multiple halogen small lamps are evenly distributed inside to ensure that the sample is evenly illuminated in all directions and angles. The camera field of view 68 is a 30×30 spatial plane range of the conveyor belt, with a spatial resolution of 0.5mm / pixel. The multi-spectral camera 61 and the conveyor belt are height-adjustable, and the field of view size and spatial resolution are also adjustable. The multi-spectral camera 61 fixes images of 25 bands, covering a wavelength range of 800-3000nm. The multi-spectral camera 61 collects spectral data information and transmits it to the external PC 67 in real time. Through modeling and analysis methods, the quality of the sample (foreign matter) is detected in real time, and the cutting shape of the sample (cutting length, width and thickness) is randomly inspected.

[0040] When in use, the power of the infrared heating tube 24 and the speed of the high temperature resistant conveying and lifting device 1 can be adjusted according to the product to ensure the softening of the product. Adjusting the height of the multi-spectral camera 61 and changing the size of the camera field of view 68 can ensure effective detection of different product qualities. The present invention can achieve multifunctional cutting of fruits and vegetables, such as: fast ordinary cutting (slicing, shredding and dicing), sterile cutting, infrared enhanced precision cutting and finished product foreign body detection. The equipment can meet various production needs, effectively improve processing automation and ensure product quality.

[0041] The infrared enhanced precision cutting saves 40%-45% of energy and increases the heating speed by 20% when the temperature is 40-70°C compared with the traditional electric heating tube water bath heating. The short-time heating depth is higher than that of electric heating tube water bath heating. In the process of cutting lotus roots, the infrared enhanced cutting method effectively ensures the cutting integrity. The above is only a specific implementation method of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative labor should be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. A multifunctional fruit and vegetable cutting detection system based on infrared enhancement, characterized in that: It comprises a PLC controller (42), a water tank (12), a high temperature resistant conveying and lifting device (1), an infrared enhancement device (2), an ultraviolet sterilization device (3), a power system (4), a cutting device (5) and a multi-spectrum detection device (6); The PLC controller (42) is respectively connected to the solid-state relay A (23), the solid-state relay B (33), the power system (4) and the sensor (66); The high temperature resistant conveying and lifting device (1) adopts a Teflon conveyor belt (11) and has the functions of high temperature resistance, corrosion resistance and drainage, and comprises a conveying section and a lifting section; wherein the water tank (12) is connected to the high temperature resistant conveying and lifting device (1), the conveying section covers the bottom of the water tank (12), and can ensure that the fruits and vegetables on the conveying section are immersed in the water of the water tank (12); infrared enhancement devices (2) are arranged at the upper and lower positions of the water tank (12) corresponding to the conveying section; the infrared enhancement device (2) above the conveying section is used to irradiate the surface of the fruits and vegetables to soften the skin of the fruits and vegetables, and the infrared enhancement device (2) below the conveying section is used to heat the water in the water tank (12); the lifting section extends to the top of the water tank (12) at a certain inclination angle, and an ultraviolet sterilization device (3) is arranged above the water tank (12) corresponding to the lifting section; The infrared enhancement device (2) comprises an infrared tube cathode circuit (21), an infrared tube anode circuit (22), a solid-state relay A (23) and an infrared heating tube (24); the solid-state relay A (23) is connected to a PLC controller (42); the PLC controller (42) controls the duty cycle of the solid-state relay A (23) to adjust the power of the infrared heating tube (24); the infrared heating tube (24) is distributed on both sides of the water tank (12) to ensure uniform heating, so that the surface of fruits and vegetables is softened, thereby improving the subsequent cutting effect; The ultraviolet sterilization device (3) comprises an ultraviolet tube cathode circuit (31), an ultraviolet tube anode circuit (32), a solid-state relay B (33) and an ultraviolet sterilization tube (34); the solid-state relay B (33) is connected to a PLC controller (42), and the solid-state relay B (33) is controlled by the PLC controller (42), thereby adjusting the power of the ultraviolet sterilization tube (34), so that the fruits and vegetables are drained and sterilized by ultraviolet light at the same time during the lifting section; The inlet and outlet of the cutting device (5) are respectively connected to the rear end of the high temperature resistant conveying and lifting device (1) and the transmission device (63) of the multi-spectral detection device (6); the inlet of the cutting device (5) is at the top and the outlet is at the bottom, and the fruits and vegetables fall freely to the transmission device (63) after being cut; The multispectral detection device (6) comprises a multispectral camera (61), a focusing lens (62), a transmission device (63), a halogen lamp (64), a halogen lamp light source (65), a sensor (66), an external PC (67), a camera field of view (68) and a closed chassis (69); the closed chassis (69) is covered on the upper part of the transmission device (63) to provide a closed environment for the detection of the multispectral detection device (6); halogen lamps (64) are arranged on both sides above the transmission device (63); the halogen lamps (64) The halogen lamp (64) is connected to an external halogen light source (65), and shines on the camera field of view (68) area on the transmission device (63); a focusing lens (62) and a multi-spectral camera (61) are arranged in order from bottom to top in the middle above the transmission device (63); the multi-spectral camera (61) is connected to an external PC (67); sensors (66) are respectively arranged at the midpoint of the camera field of view (68) and at the end of the transmission device (63) to detect whether the fruits and vegetables have reached the camera field of view (68) so as to start the multi-spectral camera (61) to shoot; The power system (4) provides power for the transmission device (63) of the high temperature resistant transmission and lifting device (1), the cutting device (5), and the multi-spectrum detection device (6).

2. The multifunctional fruit and vegetable cutting detection system based on infrared enhancement according to claim 1 is characterized in that: A closed heat-insulating box is arranged outside the infrared enhancement device (2) and the water tank (12).

3. The multifunctional fruit and vegetable cutting detection system based on infrared enhancement according to claim 1 is characterized in that: The cutting tools of the cutting device (5) include slicing, shredding and dicing tools.

4. The multifunctional fruit and vegetable cutting detection system based on infrared enhancement according to claim 1 is characterized in that: The halogen lamps (64) are evenly distributed, ensuring that the fruits and vegetables are evenly illuminated in all directions and angles.

5. The multifunctional fruit and vegetable cutting detection system based on infrared enhancement according to claim 1 is characterized in that: The camera field of view (68) is the spatial plane range of cm of the surface of the transmission device (63) and the spatial resolution is 0.5 mm / pixel.

6. The multifunctional fruit and vegetable cutting detection system based on infrared enhancement according to claim 1 is characterized in that: The multispectral camera (61) and the transmission device (63) are height-adjustable, and the field of view size and spatial resolution are also adjustable.

7. The multifunctional fruit and vegetable cutting detection system based on infrared enhancement according to claim 1 is characterized in that: The multispectral camera (61) fixes images of 25 bands, covering a wavelength range of 600-1000nm; the multispectral camera (61) collects spectral data information and transmits it to an external PC (67) in real time to detect the quality of the sample in real time and to randomly check the cutting shape of the sample.

8. A method for detecting using a multifunctional fruit and vegetable cutting detection system based on infrared enhancement as described in any one of claims 1 to 7, characterized in that: Here are the steps: The high temperature resistant conveying and lifting device (1) transports fruits and vegetables through the transmission section first. At this time, the fruits and vegetables are completely immersed in the water of the water tank (12). The upper infrared enhancement device (2) performs infrared heating on the fruits and vegetables. The lower infrared enhancement device (2) heats the water in the water tank (12). The PLC controller (42) controls the solid-state relay A (23) to adjust the power of the upper and lower infrared heating tubes (24). The upper and lower infrared heating tubes (24) soften the surface of different types of fruits and vegetables to different degrees, thereby avoiding excessive drying of the fruit and vegetable skin, thereby ensuring the softening effect of the skin and ensuring that the fruits and vegetables are not damaged. Afterwards, the high temperature resistant conveying and lifting device (1) transports the fruits and vegetables through the lifting section. At this time, the high temperature resistant conveying and lifting device (1) and the ultraviolet sterilization device (3) of the lifting section work together to drain water and sterilize with ultraviolet light at the same time. The fruits and vegetables after ultraviolet sterilization enter the cutting device (5). For fruits and vegetables of different types and with different requirements, the cutting device (5) selects different knives for cutting. After being cut, the fruits and vegetables fall freely onto the transmission device (63) of the multi-spectral detection device (6). The sensor (66) detects that the transmission device (63) transports the fruits and vegetables into the camera field of view (68), and the halogen lamps (64) on both sides illuminate the surface of the fruits and vegetables, starting the spectral image collected by the multi-spectral camera (61) and transmitting it to the external PC (67) for analysis and real-time display.

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