21 results about "Litchi fruit" patented technology

The invention belongs to the technical field of litchi planting, and particularly relates to a high-precision three-dimensional measurement method in a litchi growth process, before an experiment is started, calibration marks are fixed on branches to ensure precise scaling of a three-dimensional model, the marks are always visible in an imaging process, and during data acquisition, the calibration marks are not visible. A 360-degree imaging strategy is adopted for part of branches to obtain complete multi-view coverage; in the data preprocessing stage, background elimination is carried out based on a collaborative image segmentation method of Ground DINO and SAM2, precise litchi main body extraction is realized, an improved Compact-2DGS method is provided, a redundant Gaussian unit is eliminated through a novel stability perception elimination strategy, efficient storage compression is realized, and the method has the advantages of high efficiency and high efficiency. And the two-dimensional rendering quality and the three-dimensional reconstruction precision are synchronously improved in combination with a GStex optimization technology. By tracking the maximum width, height and volume of the fruit cluster determined in the reconstructed three-dimensional model, the growth rule of the litchi fruit of the seven branches is analyzed.

The utility model relates to the technical field of carbonization furnaces, and discloses an intermittent litchi fruit charcoal firing furnace which comprises a carbonization furnace body, a firing plate is slidably connected to the inner bottom side of the carbonization furnace body, a lifting bottom support is slidably connected to the bottom of the firing plate, and a bottom plate is fixedly connected to the bottom of the lifting bottom support. Top plates are fixedly connected to the four corners of the bottom of the bottom plate correspondingly, supporting columns are fixedly connected to the bottoms of the top plates correspondingly, connecting discs are fixedly connected to the bottoms of the supporting columns correspondingly, shells are arranged at the bottoms of the connecting discs correspondingly, and screws are rotationally connected to the peripheries of the tops of the connecting discs correspondingly. According to the utility model, the litchi fruit trees are neatly placed above the firing plate outside the firing furnace, so that an operator can neatly and uniformly place the litchi fruit trees on the firing plate in a place with sufficient light and wide space outside the furnace, the problem of uneven distribution of the fruit trees is effectively solved, and the production efficiency and the product quality are improved.

The utility model discloses a litchis shell tea packaging structure, which belongs to the technical field of tea packaging and comprises a litchis packaging shell made by cleaning and drying natural litchis shells, the litchis packaging shell is cut to form a litchis barrel body and a litchis cover body, and tea is placed in the litchis barrel body. The litchi packaging shell is arranged on the top of the litchi barrel body, the litchi cover body covers the top of the litchi barrel body and packages tea leaves, the litchi packaging shell is wrapped with a flexible wrapping body, and the litchi barrel body and the litchi cover body are wrapped and fixed through the flexible wrapping body. The litchi packaging shell is made of natural litchi shells and is cut into the barrel body and the cover body, the packaging is natural and environment-friendly, the health care value of the litchi shells is fused with the tea leaves, health benefits are brought, the sealing performance of the packaging is effectively improved through the flexible wrapping body and the sealing waterproof packaging film which are wrapped outside, and the packaging effect is good. And the problem that the quality of the tea leaves is reduced after a traditional package is opened for multiple times is solved.

The utility model relates to the technical field of crushing, and discloses a serrated blade litchi fruit charcoal crushing device which comprises a top plate, supporting legs are fixedly connected to the four corners of the bottom of the top plate, a device shell is fixedly connected to the top of the top plate, a feeding port is formed in the top of the device shell, and a discharging port is formed in the top of the device shell. A vibrating groove is formed in the inner wall of the feeding opening, vibrating frames are slidably connected to the left and right sides of the inner wall of the vibrating groove, second vibrating telescopic rods are fixedly connected to the left and right ends of the front and rear sides of the inner wall of the vibrating groove, and the other ends of the multiple second vibrating telescopic rods are fixedly connected to the front and rear sides of the vibrating frames correspondingly; and motors are fixedly connected to the left and right sides of the top of the top plate. According to the litchi fruit smashing device, under the action of the second vibration telescopic rod, the vibration groove vibrates in a reciprocating mode, the output end of the motor drives the sawtooth blade to rotate at a high speed, the situation that litchi fruit charcoal is accumulated and blocked in the feeding process is avoided, and it is guaranteed that smashing work is conducted continuously.

The invention provides an efficient cooling and fresh-keeping device for lychee fruits, the efficient cooling and fresh-keeping device comprises a cooling box, a conveying mechanism, a draining platform and a transfer mechanism, the transfer mechanism comprises a rotating motor, a roller, a driving wheel, a rotating shaft, a driven wheel, an incomplete gear, a synchronous belt, a rack, a push plate and a spring, and the conveying mechanism conveys the lychee fruits into the cooling box for cooling and fresh keeping; litchi fruits can continuously float forwards in low-temperature water, the rotating roller can press the litchi fruits into the water, finally, the litchi fruits can float to the position between the push plate and the roller, and when the rotating motor drives the roller to rotate, the rotating shaft can be driven to rotate synchronously through the driving wheel, the synchronous belt and the driven wheel. The incomplete gear on the rotating shaft can be periodically meshed with the rack, the rack can drive the push plate to move, the push plate can push the lychee fruits to the side wall of the roller, the roller can drive the lychee fruits to a draining platform to be discharged when rotating, the lychee fruits are prevented from being damaged due to the fact that the lychee fruits are located in low-temperature water for a long time, and the cooling and fresh-keeping efficiency is improved.

The application discloses a kind of compound microbial inoculants for preharvest preservation of litchi and application thereof.The application is directed to the key enzymes of litchi pericarp browning and its pathogenic bacteria, and directional screening of microbial strains tolerating high concentration of metal ions, high yield of lignin-degrading enzyme and antifungal, etc. The compound microbial inoculants for preharvest preservation of litchi is formed and applied to litchi fruit growth period. After litchi is picked, the fruit size becomes larger, the shell skin is harder and not easy to be damaged, the inner wall white film is thicker, the natural oxidation speed is slower, the pulp is solid and crystal, the fruit core and pulp are connected tightly, in addition, the pericarp browning degree is delayed, the fruit disease rate and water loss rate are low. The application does not need any physical, chemical treatment or biological preservative after litchi is picked, which can prolong the natural preservation period after picking while keeping the original taste of the product. The application innovatively solves the problem of litchi preservation, and will produce important economic and social benefits after industrial application.

The invention relates to a method for monitoring the richness and morbidity of litchi pocking spot disease infection sources, and provides a simple and accurate litchi pocking spot disease prediction method for monitoring and early warning of litchi pocking spot disease latent infection sources in litchi producing areas of different areas. According to the method, the separation frequency of pathogenic bacteria of the asymptomatic fruit pocking spot disease and the severity of the field pocking spot disease are collected and detected regularly (one week) in the fruiting period, and the method can accurately monitor the richness of latent infection sources of the pocking spot disease. On the basis, the occurrence condition of the litchi pocking spot disease in the region in the current year can be predicted by combining weather forecast (rainfall days) of the local litchi fruit bearing period.

The utility model discloses a variable vibration litchi picking device, include: delta parallel mechanism is used for the mobile positioning of litchi picking, variable vibration output mechanism is used for the vibration collection of litchi picking, visual sensor is used for gathering litchi fruit cluster information, control box is used for processing fruit cluster coordinate information and sends control information, wherein, variable vibration output mechanism and visual sensor are installed respectively on the dynamic platform of delta parallel mechanism, and the control box is connected on the fixed platform of delta parallel mechanism, the utility model discloses simple and reliable structure design, convenient to use, and picking positioning is accurate and efficient, and litchi vibration picking efficiency is improved greatly, especially suitable for the vibration collection operation of litchi orchard, and is installed in the field mobile platform, and single operation can realize the vibration collection of most litchi in 1500*2000*200mm range.

The application discloses a litchi three-dimensional phenotype measurement method based on a neural radiation field, and comprises the following steps: S1, an image or a video of a litchi fruit is shot by using a mobile phone, a two-dimensional image set is made, and the image is labeled; S2, COLMAP technology is used to collect key points of the labeled image, corresponding points between multiple images are found, and the positions and directions of cameras are estimated by using the points; S3, a NeRF network based on a ray marching technology and a tensor radiation field is used to train the labeled image set, and a three-dimensional implicit representation model is obtained; S4, a three-dimensional display expression mode grid model is generated by using volume density, color, light and a three-dimensional implicit scene, and point cloud data of the litchi fruit is obtained by judging and screening abnormal points; and S5, the phenotype parameters of the litchi are measured according to the point cloud data. The application is shot by using a mobile phone, and the ray marching technology and the tensor radiation field are introduced into the NeRF, so that the problems of fruit occlusion and high equipment cost existing in the prior art are solved.

The present application provides an effective and safe litchi endogenous polypeptide and its application in controlling plant diseases. The amino acid sequence of the litchi endogenous polypeptide P2 is shown as SEQ ID NO. 1. After the litchi endogenous polypeptide P2 is used to treat litchi, the resistance of litchi fruits to litchi blight Peronophythora litchii can be improved. Therefore, the litchi endogenous polypeptide P2 can be used to prepare a novel preservative and a plant disease resistance inducer against fungal diseases, and is applied in the field of plant fungal disease prevention and control.

The application belongs to the field of plant genetic engineering, and particularly relates to a sugar signal perception kinase LcTOR and application thereof in regulation and control of litchi fruit shedding. The gene codes a sugar signal perception kinase, expression of the gene is significantly up-regulated in the litchi fruit shedding process, treatment by an inhibitor AZD8055 can significantly reduce fruit shedding, and an activator MHY1485 promotes shedding, and heterologous overexpression of the gene can accelerate flower organ shedding of Arabidopsis thaliana, and silencing of the gene inhibits litchi fruit shedding. The application provides a new gene resource and regulation and control means for litchi and fruit shedding control of other crops.

The invention discloses a litchi fruit disease and insect pest recognition method and device based on cyclone type posture adjustment, and relates to the field of litchi fruit disease and insect pest recognition and sorting, and the method comprises the steps that a conveying device conveys litchi fruits one by one; the litchi posture camera is used for collecting litchi images of litchi fruits, the improved YOLOV8m litchi pedicel visual recognition model is used for recognizing the litchi images, and the pneumatic posture adjusting device is used for adjusting the posture of the litchi fruits according to the recognition result, so that the pedicels face upwards; litchi fruits with wormhole characteristics are recognized through a wormhole camera in the wormhole recognition device and a wormhole recognition model based on deep learning, the pneumatic sorting device sorts the fruits with insect pests to an insect pest collection channel, and qualified fruits enter a normal collection area. According to the method, the posture of the litchi fruits can be accurately adjusted, efficient pest recognition is conducted on the litchi fruits after posture adjustment, the recognition precision is high, the efficiency is high, and the quality and the sorting effect of the litchi fruits are guaranteed.

The application discloses a grading method for litchi fruits with borers, and the grading method is as follows: S1, freshly picked litchi is placed in a clean water pool for soaking treatment, and the surface residues of the water are removed; S2, the litchi preliminarily cleaned in the step S1 is placed in a salt water pool for soaking treatment, and the pool surface garbage and floating insects are cleaned according to the above step. The application realizes the separation of the fruit pulp and borers and impurities by establishing a set of de-insect process, and the de-insect process follows a processing mode from simple to difficult, or from outside to inside. The mode is simple in operation and low in cost. On the basis, the application adds an infrared identification device and an image recognition device, and cooperates with a shunting device to quickly and efficiently complete the analysis and processing of the litchi, the separation of the borers and the degree of the litchi itself, and the processing method cooperates with the work to improve the litchi sorting efficiency and is suitable for large-scale promotion.

The invention belongs to the field of plant genetic engineering, and particularly relates to a litchi LcVAS1a gene and application of the litchi LcVAS1a gene in plant organ abscission. The CDS sequence of the gene is shown as SEQ ID NO.1, and the coded amino acid sequence is shown as SEQ ID NO.2. Experiments prove that the expression of the LcVAS1a gene is up-regulated in the litchi fruit falling process, the falling of arabidopsis thaliana flower organs can be promoted by heterologous overexpression, and the falling of young fruits can be inhibited by silencing the LcVAS1a in the litchi fruit stem separation region. The invention provides a new gene resource and technical means for regulating and controlling the abscission of plant organs, and has important significance for increasing the yield of crops such as litchi and the like.

The invention discloses an orchard green litchi detection and counting method and system based on unmanned aerial vehicle vision. The method comprises the steps of data acquisition; preprocessing the image; according to green litchi fruit detection, improvement is carried out on the basis of a YOLOv11n network structure, a small target detection layer is added, a C3k2EMA module fused with an attention mechanism and a neck network fusion SlimNeck module are introduced into a backbone network, the feature extraction capacity of a model for small-size fruits, complex backgrounds and shielded fruits is enhanced, and precise detection of green litchis is achieved. And green litchi fruit tracking and counting: carrying out cross-frame association on detection results in continuous video frames based on a TopicTrack multi-target tracking algorithm, establishing unique identifiers of the fruits, realizing dynamic tracking and repeated detection removal of the fruits, and obtaining an accurate fruit quantity statistical result. According to the invention, high-precision, real-time and automatic detection and counting of green litchis in an orchard can be realized.

The invention discloses soda water capable of keeping the flavor of fresh litchi fruits and a preparation technology of the soda water, and belongs to the technical field of beverage processing. The preparation method comprises the following steps: by taking fresh litchis as a raw material, carrying out pretreatment pulping, and then carrying out low-temperature enzymolysis by adopting a pectinase, xylanase and beta-glucosidase composite system, so as to prepare clarified litchi juice; then inoculating a compound yeast liquid composed of Wickerhamomyces anomalus and kiwi yeast for fermentation to prepare a litchi fermentation base liquid; the preparation method comprises the following steps: preparing a base material, homogenizing at low temperature, sterilizing at low temperature, degassing in vacuum, carbonating at low temperature and high pressure, and aseptically filling to obtain a finished product. A full-chain low-temperature processing system is constructed, thermal deterioration of characteristic aroma of litchis is avoided, the flavor plumpness is improved through cooperation of enzymolysis and compound fermentation, and the technical problems that traditional litchi flavored soda water is too heavy in flavor feeling, thin in taste and lack of fresh fruit feeling are solved. The prepared product is natural and full in litchi flavor, prominent in fresh fruit feeling, fine and lasting in bubble, stable and controllable in process and suitable for industrial large-scale production.

The invention provides a spice composition with litchi fruit fragrance and peony flower fragrance and application of the spice composition. The perfume composition is prepared from the following components: 0.05 to 0.1 weight percent of berry ethyl ester, 2.0 to 3.0 weight percent of tropical fruit fragrance base, 1.0 to 2.0 weight percent of bitter orange essential oil, 3.0 to 5.0 weight percent of phenethyl alcohol, 0.05 to 0.1 weight percent of hydroxycitronellal, 0.05 to 0.1 weight percent of alpha-ionone, 5.0 to 10.0 weight percent of seven-flower lotus fragrance base, 5.0 to 10.0 weight percent of methyl dihydrojasmonate and the balance of water. And the balance of auxiliary spices and / or dispersants and / or stabilizers. The spice composition disclosed by the invention can present a fresh and sweet litchi fragrance front tone and a clear and full peony fragrance middle tone, and can be used for daily chemical products to meet the technical requirements on high-grade fragrance expression.

The invention discloses a lychee fruit detection method and device based on improved YOLOv8n, and belongs to the technical field of computer vision, and the method comprises the steps: obtaining a lychee fruit image, carrying out the data preprocessing, and generating an image tensor; performing feature mapping on the image tensor through a CBS module of the backbone network, performing feature extraction on a feature mapping result through a C2f-DWRR module, and outputting a first feature map of multiple scales; performing feature enhancement on the first feature map of the maximum scale through an SPPF-LSKA module of the neck network, performing feature integration on a feature enhancement result and first feature maps of other scales through a C2f module, and outputting second feature maps of multiple scales; performing a classification task and a regression task on each second feature map in parallel through an LSCD detection head, and outputting a plurality of prediction result tensors; and performing confidence coefficient screening and non-maximum suppression processing on each prediction result tensor to generate a litchi fruit detection result. Therefore, by implementing the method, the accuracy and the efficiency of litchi fruit detection can be improved.

The embodiment of the invention provides a litchi fruit counting method based on target detection and density regression. The method comprises the following steps: S1, obtaining a to-be-counted image of a whole litchi tree; s2, inputting to-be-counted images into the fruit bunch detection model, and obtaining a fruit bunch candidate prediction frame; s3, performing recursive merging processing on the candidate prediction frames of the fruit bunches to obtain a final frame set of the merged fruit bunches; s4, based on the final fruit bunch frame set, cutting out a corresponding fruit bunch region image from the to-be-counted image; s5, the fruit bunch area image is input into a fruit density regression model, a density prediction map is obtained, and the model comprises a plurality of mixed attention mechanism modules based on deformation perception and cross-branch interaction; and S6, carrying out spatial integration on the density prediction map to obtain the number of fruits, and carrying out summation to obtain a total fruit count. The method is based on a two-stage detection method, the counting precision is improved, and the problems of missing detection and false detection caused by dense bunches of fruits, mutual shielding, small size and similar colors of green fruits and leaves are solved.

The invention provides an effective and safe litchi endogenous polypeptide and application thereof in controlling plant diseases. The amino acid sequence of the litchi endogenous polypeptide P2 is as shown in SEQ ID NO. 1. After litchi is treated by the litchi endogenous polypeptide P2, the resistance of litchi fruits to peronophythora litchii can be improved. Therefore, the litchi endogenous polypeptide P2 can be used for preparing a novel antifungal disease preservative and a plant disease-resistant inducer, and is applied to the field of prevention and control of plant fungal diseases.

The invention belongs to the field of plant genetic engineering, and particularly relates to a sugar signal sensing kinase LcTOR and application thereof in regulation and control of litchi fruit shedding. The gene encodes a sugar signal sensing kinase, the expression is obviously up-regulated in the litchi fruit dropping process, the fruit dropping can be obviously reduced through treatment of an inhibitor AZD8055, the dropping can be promoted through treatment of an activator MHY1485, the dropping of arabidopsis thaliana flower organs can be accelerated through heterologous over-expression of the gene, and the litchi fruit dropping can be inhibited through silencing of the gene. The invention provides a new gene resource and a new regulation and control means for fruit drop control of litchis and other crops.