CN2579170Y - Automatic identifier for sex of chick - Google Patents

Abstract

The utility model discloses an automatic gender identification device for chicks. It is an automated sex identification for day-old chicks. Including feeding mechanism, conveying mechanism, lighting system, CCD camera, software system, control system and grading mechanism. It acquires chick image information through CCD camera and image data acquisition card, and performs filtering and denoising, thresholding, pattern recognition and analysis on the image, and the classification agency divides the chick into three categories: female chick, male chick and uncertain according to the identification and analysis result signal , the above process is coordinated by the control system. The utility model replaces the existing manual identification method, can increase labor productivity, reduce identification cost and improve working conditions, and provides prerequisite guarantee for the implementation of male and female group feeding in the chicken industry.

Description

Chick sex automatic identification device

technical field

The utility model relates to the poultry industry, which is an automatic gender identification device for chicks.

Background technique

Chick sex identification is an important production link in the poultry industry. Existing chick sex identification methods are all artificial identification methods, mainly including instrument identification method, appearance method, anus identification method and sex-linked inheritance method. The technical requirements for the identification personnel are high, and the labor intensity is high, the identification efficiency is low, and the cost is high. Automatic gender identification of chicks is a long-standing problem in the chicken industry at home and abroad. The lack of automatic identification of chick sex has hindered the implementation of male and female group breeding in the chicken industry. Years of research have shown that group feeding of cocks and hens is an important technical measure to shorten the feeding period, reduce the feed-to-meat ratio and improve the economic benefits of raising chickens. It can also improve the survival rate of hens and chicks, reduce individual differences, and improve uniformity. It is convenient for mechanized slaughtering and processing, and improves the productivity and specification level of products.

There have been studies abroad on the method of using machine vision systems to identify the sex of chicks. For example, U.S. Patent Pub.No.2001/0035370 A1 and No.6,396,938 B1 utilize the principle of the flight feather speed method of the sex-linked genetic method to identify the difference in length of chick feather wings through machine vision images to identify sex. And for utilizing the principle of the feather speed method of sex-linked heredity method, the research of identifying the difference of chick's color characteristic by machine vision machine vision image to discriminate sex gnat has not yet been seen in the report.

Contents of the invention

The purpose of the utility model is to provide a chick sex automatic identification device.

The technical scheme that the utility model adopts is as follows:

1. Identification method:

1) Feeding the chicks: feed the chicks onto the conveyor belt through the feeding mechanism;

2) Convey the chicks: transport the chicks to the light box;

3) Acquiring the image of the chick: obtain the image information of the chick through the CCD camera and the image data acquisition card;

4) Image processing: the software system performs filtering and denoising, grayscale transformation, and thresholding processing on the image information;

5) Pattern recognition: recognize according to the number of grayscale pixels;

6) Classification by sex: the classification agency classifies the chicks according to the pattern recognition results under the control of the control system.

2. Identification device:

It includes feeding mechanism, light box, CCD camera, sensor, control box, PC, sorting mechanism, transmission belt, driving wheel, vibration mechanism; Conveyor belt with a high degree of inclination, a vibrating mechanism is installed under the conveyor belt on the upper side, and a light box is installed above the conveyor belt. A light box is installed in the light box. The control box is connected to the PC, the sensor is connected to the PC after the control box, and the classification mechanism is connected to the other end of the conveyor belt.

The utility model has the advantages that it provides an automatic gender identification device for chicks, which is used to realize automatic gender identification of one-day-old chicks, replaces the existing manual identification method, can increase labor productivity, reduce identification costs and improve working conditions. It provides a prerequisite guarantee for the implementation of the male and female group feeding method in the chicken industry.

Description of drawings

Fig. 1 is the flow chart of chick sex automatic identification method;

Fig. 2 is the schematic diagram of chick sex automatic identification device;

Fig. 3 is a schematic diagram of the control flow;

Fig. 4 is a typical male chick image;

Fig. 5 is a typical hen chick image;

Figure 6 is a thresholded male chick image corresponding to Figure 4;

FIG. 7 is a thresholded hen chick image corresponding to FIG. 5 .

Detailed ways

As shown in Figure 1, the steps of the chick sex automatic identification method are as follows:

1) Feeding the chicks 1: Feed the chicks onto the conveyor belt through the feeding mechanism;

2) Transporting the chicks 2: transporting the chicks to the light box;

3) Obtain chick image 3: obtain chick image information through a CCD camera and an image data acquisition card;

4) Image processing 4: the software system performs filtering and denoising, grayscale transformation, and thresholding processing on the image information;

5) Pattern recognition 5: recognize according to the number of grayscale pixels;

6) Classification by sex 6: The classification agency classifies the chicks according to the pattern recognition results under the control of the control system.

As shown in Figure 2, chick sex automatic discriminating device, it comprises feeding mechanism 7, light box 9, CCD camera 10, sensor 11, control box 12, PC 13, sorting mechanism 14, transmission belt 15, driving wheel 16, Vibration mechanism 17; Can do left and right swing feeding mechanism 7 times, be connected with the transmission belt 15 that is rotated by driving wheel 16, the transmission belt on one side above is equipped with vibration mechanism 17, the top of transmission belt 15 is equipped with There are light box 9, light box 9, CCD camera 10 and sensor 11 are housed in the light box 9, one end of CCD camera 10 is connected with PC 13, the other end is connected with PC 13 after control box 12, and sensor 11 is behind control box 12 Connect PC machine 13, on the other end of conveyor belt 15, be connected with sorting mechanism 14.

Its work flow is: dress every chick 8 by feeding mechanism 7 and separate from the group, the transmission belt 15 that drives rotation by driving wheel 16 sends chick 8 to light box 9, is vibrated by transmission belt 15 and vibrating mechanism 17 To ensure the stability of the chick 8, the image processing and pattern recognition system made up of the CCD camera 10, the sensor 11, the control box 12 and the PC 13 are completed through the grayscale conversion process.

As shown in FIG. 3 , the control box 12 includes 89C52 single-chip microcomputer, communication conversion interface, photoelectric isolation and other components. When the conveyor belt 15 sent the chick 8 to the suitable position of the light box 9, the sensor 11 sent the signal to the single-chip microcomputer, and the single-chip microcomputer controlled the CCD camera 10 to take pictures, and simultaneously notified the PC 13 to carry out image processing and pattern recognition, and the PC 13 recognition results were sent to the computer. Back to the single-chip microcomputer, the single-chip microcomputer outputs control signals to the classification mechanism for classification.

Figure 4 shows the image of a male chick; Figure 5 shows an image of a female chicken. Due to the obvious grayscale difference between male chick and female chick images. The gray level of the female chick image is higher than that of the male chick image, and the difference in gray level is the basis for gender identification, and the classification mechanism 14 classifies the chicks into different categories according to the pattern recognition results under the control of the control system.

As shown in Fig. 6 and Fig. 7, it is an embodiment adopted by pattern recognition in the method of the present invention, Fig. 6 is a thresholded male chick image, and Fig. 7 is a thresholded female chick image.

其中：P_m为下阈值，P_f为上阈值。The number of pixels of the gray scale is identified, that is, P is the number of pixels of a certain gray scale, and the sex of the chick is determined by P as follows:

Among them: P _m is the lower threshold, P _f is the upper threshold.

Claims (1)

1. Chick sex automatic discrimination device is characterized in that: it comprises feeding mechanism (7), light box (9), CCD camera (10), sensor (11), control box (12), PC machine (13), Sorting mechanism (14), conveyor belt (15), driving wheel (16), vibrating mechanism (17); under the feeding mechanism (7) that can swing left and right, there is a slant that is driven by the driving wheel (16) to rotate. The transmission belt (15) of the upper side is equipped with a vibrating mechanism (17) under the transmission belt on one side, and a light box (9) is installed on the top of the transmission belt (15), and a CCD camera (10) and Sensor (11), one end of CCD camera (10) connects PC (13), and the other end connects PC (13) after control box (12), and sensor (11) connects PC after control box (12) ( 13), the other end of conveyor belt (15) is connected with sorting mechanism (14).

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