CN104977355A - Dynamic poultry egg shell crack detection system and dynamic poultry egg shell crack detection method - Google Patents
Dynamic poultry egg shell crack detection system and dynamic poultry egg shell crack detection method Download PDFInfo
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Abstract
The invention discloses a dynamic poultry egg shell crack detection system and a dynamic poultry egg shell crack detection method. A conveyer belt is connected with an encoder, a large detection module and a small detection module are installed right above an upstream inlet in the conveyer belt, and exciting devices are installed above the conveyer belt; the exciting device is connected with a main control circuit and a data acquisition and analysis module, the data acquisition and analysis module is connected with a display and storage module, and the large and small detection modules and the encoder are connected with the main control circuit. When poultry eggs are conveyed to the part below the exciting devices, sub control circuits control the exciting devices to knock the poultry eggs; the exciting device sequentially knock the poultry eggs, the poultry eggs vibrate to sound, so that the data acquisition and analysis module acquires the result data which can show the existence of the poultry egg cracks according to sound signals. According to the invention, through the combination of the transmission speed and the sizes of the poultry eggs, the knocking force can be calculated and the knock is accurate, the completeness of the poultry eggs, and the sound consistency can ensured; whether the poultry egg shell have cracks or not are judged by acquiring the knocking sound; and FPGA and DSP are combined, so that the sound signals of multiple channels can be acquired simultaneously, and can be processed rapidly.
Description
Technical field
The present invention relates to a kind of birds, beasts and eggs detection system and method, especially relate to a kind of fowl egg crack dynamic detection system and method.
Background technology
It is an important step in birds, beasts and eggs grading production line that fowl egg crack detects, and the crackle produced in the processes such as collection, transport is easy to make birds, beasts and eggs infect salmonella, is detrimental to health.And duck's egg is as the starting material of domestic lime-preserved egg and Salted duck egg, requires that duck's egg does not have crackle completely.The importance that visible fowl egg crack detects.
At present, the method detecting fowl egg crack mainly utilizes acoustic impulse response method to detect fowl egg crack.Its principle is according to knocking the sound pulse vibration that birds, beasts and eggs produce, analyzing its frequency spectrum to differentiate whether there is crackle.Although acoustic impulse response method also needs to knock point multiple on eggshell, it has easy to operate, the advantage such as detection sensitivity is higher and analysis speed is very fast.
In recent years, there is the large-scale birds, beasts and eggs grading production line comprising crack detection link abroad, all adopt the method for acoustic impulse response, but the detection of domestic fowl egg crack has been still manual inspection is main.The domestic acoustic impulse response detection fowl egg crack that utilizes has had relevant bibliographical information, but is mostly confined to laboratory study, reckons without the ask for something of on-line checkingi for speed, complexity and operability.
Summary of the invention
In order to overcome the defect of prior art, improve the accuracy of detection that fowl egg crack detects, accelerate detection speed, the object of the present invention is to provide a kind of fowl egg crack dynamic detection system and method, Dynamic Crack for the production of line detects, present system can knock birds, beasts and eggs exactly, and knock with suitable power according to the size of birds, beasts and eggs, ensure the integrality of birds, beasts and eggs and produce the consistance of sound size, improve accuracy of detection, by being combined by FPGA and DSP, 32 road signals can be gathered at most and fast processing signal simultaneously.
For achieving the above object, the technical solution used in the present invention is:
One, a kind of fowl egg crack dynamic detection system: comprise birds, beasts and eggs, exciting bank, travelling belt, size detection module, Signal-regulated kinase, sub-control circuit, scrambler, total control circuit, data collection and analysis module and display and memory module; Birds, beasts and eggs are placed in along with travelling belt conveying on travelling belt, and the driving wheel of travelling belt is coaxially connected with scrambler, and size detection module is arranged on directly over travelling belt upstream entrance place, is provided with N number of exciting bank uniformly at intervals successively along birds, beasts and eggs working direction; Exciting bank is connected to total control circuit and data collection and analysis module, and data collection and analysis module is connected with display and storage module, and size detection module is connected with total control circuit with scrambler.
Described each exciting bank is connected to total control circuit through respective sub-control circuit respectively.
Described each exciting bank is connected to data collection and analysis module through respective Signal-regulated kinase respectively.
Described data collection and analysis module comprises AD converter, FPGA circuit and DSP circuit, and the output terminal of Signal-regulated kinase connects DSP circuit through AD converter, FPGA circuit successively.
Described exciting bank specifically comprises coil, iron core, motion bar and magnet ring, and coil winding is outside the iron core of annular, and motion bar to insert in iron core lower slider vertically, and magnet ring is embedded in the center flange bottom motion bar.
Described N is 12 ~ 24.
Two, a kind of fowl egg crack dynamic testing method:
1) scrambler detects travelling belt travelling speed in real time and sends to total control circuit, the high low signal of birds, beasts and eggs and elapsed time signal are sent to total control circuit by the birds, beasts and eggs that size detection module detects immediately below it, and the high low signal of birds, beasts and eggs and elapsed time signal and travelling belt travelling speed data are sent to each sub-control circuit by total control circuit;
2) when birds, beasts and eggs run to immediately below exciting bank, sub-control circuit controls exciting bank percussion power and knocks birds, beasts and eggs;
3) after vibration sounding is knocked successively by N number of exciting bank uniformly at intervals in birds, beasts and eggs transport process, exciting bank gathers sound and send to data collection and analysis module after Signal-regulated kinase filtering, amplification, data collection and analysis module obtains fowl egg crack according to voice signal and there is result data, and this fowl egg crack is existed result data send to display and memory module carry out showing and storing.
The speed that described sub-control circuit runs according to travelling belt and the horizontal range between self corresponding exciting bank with size detection module calculate these birds, beasts and eggs and run to time immediately below the exciting bank corresponding with self, percussion power calculates according to birds, beasts and eggs high low signal, knocks when birds, beasts and eggs are run to immediately below exciting bank.
Described data collection and analysis module comprises AD converter, FPGA circuit and DSP circuit, simulating signal is converted to digital signal by AD converter by voice signal, be sent to most multipotency and gather buffer memory in the FPGA circuit of 32 road signals, then send to DSP processing of circuit to obtain fowl egg crack in a serial fashion and there is result data.
Described N is 12 ~ 24.
The mode using FPGA and DSP combination in the present invention is applied in the crack detection of birds, beasts and eggs, carries out acquisition and processing to signal.FPGA (Field Programmable Gate Array) circuit, i.e. field programmable gate array, very large difference is had compared to the sequential operation of PC or single-chip microcomputer, FPGA circuit is based on concurrent operation, and realize with hardware description language, so in the present invention for front end multi-channel data acquisition.DSP (Digital Signal Processor), i.e. digital signal processor, it is a kind of microprocessor being particularly suitable for carrying out digital signal processing computing, it is mainly applied is realize various digital signal processing algorithm real-time, so in the present invention for back-end digital signal transacting.
The beneficial effect that the present invention has is:
1, because birds, beasts and eggs move on a production line continuously, hammer action needs and birds, beasts and eggs speed, position, size are mated well, the present invention utilizes a size detection module before exciting bank, detect the size of each birds, beasts and eggs, birds, beasts and eggs travelling speed is detected in real time with scrambler, in conjunction with the position of birds, beasts and eggs, accurately can control corresponding exciting bank and knock birds, beasts and eggs.
2, each exciting bank of the present invention is controlled by independently control circuit, and by independently Signal-regulated kinase processing signals, is not easy to cause interference.
3, Data acquisition and issuance module of the present invention adopts the mode that FPGA and DSP combines, and utilizes the parallel processing capability of FPGA to gather maximum 32 road signals simultaneously, then sends to DSP, utilize the high-speed digital video camera ability of DSP to process signal successively.
Accompanying drawing explanation
Fig. 1 is present system structural drawing.
Fig. 2 is data acquisition of the present invention and analysis module structural drawing.
Fig. 3 is the structural representation of exciting bank of the present invention.
Fig. 4 is the coil current of exciting bank of the present invention and the graph of a relation of birds, beasts and eggs size.
In figure: 1, birds, beasts and eggs, 2, exciting bank, 3, travelling belt, 4, size detection module, 5, Signal-regulated kinase, 6, control circuit, 7, scrambler, 8, total control circuit, 9, data collection and analysis module, 10, display and memory module, 11, AD converter, 12, FPGA circuit, 13, DSP circuit, 14, coil, 15, iron core, 16, motion bar, 17, magnet ring.
Embodiment
Below in conjunction with concrete embodiment, the invention will be further described.Have employed 24 exciting banks in embodiment.
As shown in Figure 1, the present invention includes birds, beasts and eggs 1, exciting bank 2, travelling belt 3, size detection module 4, Signal-regulated kinase 5, sub-control circuit 6, scrambler 7, total control circuit 8, data collection and analysis module 9 and display and memory module 10; Birds, beasts and eggs 1 are placed on travelling belt 3 along with travelling belt 3 is carried, the driving wheel of travelling belt 3 is coaxially connected with scrambler 7, size detection module 4 is arranged on directly over travelling belt 3 upstream entrance place, is provided with N number of exciting bank 2 uniformly at intervals successively along birds, beasts and eggs 1 working direction; Exciting bank 2 is connected to total control circuit 8 and data collection and analysis module 9, and data collection and analysis module 9 is connected with display and storage module 10, and size detection module is connected with total control circuit 8 with scrambler 7.
Each exciting bank 2 is connected to total control circuit 8 through respective sub-control circuit 6 respectively.Communication is carried out by SCI interface between sub-control circuit 6 and total control circuit 8,
Each exciting bank 2 is connected to data collection and analysis module 9 through respective Signal-regulated kinase 5 respectively.
All sub-control circuits 6 are all identical, and all Signal-regulated kinase 5 are all identical.
As shown in Figure 2, data collection and analysis module 9 comprises AD converter, FPGA circuit and DSP circuit, and the output terminal of Signal-regulated kinase 5 connects DSP circuit through AD converter, FPGA circuit successively.
All exciting banks 2 are identical, and the spacing between adjacent actuators device is identical with the spacing between adjacent birds, beasts and eggs 1.Exciting bank 2 specifically comprises coil 14, iron core 15, motion bar 16, magnet ring 17, and coil winding is outside the iron core 15 of annular, and motion bar 16 inserts in iron core, can axially lower slider, and magnet ring 17 is embedded on motion bar 16.During stationary state, due to magnet ring 17 and the sucking action of iron core 15, motion bar 16 is positioned at topmost, coil 14 forward is energized, iron core 15 produces and the opposite polarity magnetic field of magnet ring 17, and promote motion bar 16 and move downward, coil 14 is oppositely energized, iron core 15 produces the magnetic field identical with magnet ring 17 polarity, and traction motion bar 16 moves upward.The size of coil 14 electrical current and the size of birds, beasts and eggs determine the size of power when motion bar knocks birds, beasts and eggs.
1) scrambler 7 detects travelling belt 3 travelling speed in real time and sends to total control circuit 7, the high low signal of birds, beasts and eggs 1 and elapsed time signal are sent to total control circuit 8 by the birds, beasts and eggs 1 that size detection module 4 detects immediately below it, and the high low signal of birds, beasts and eggs 1 and elapsed time signal and travelling belt 3 travelling speed data are sent to each sub-control circuit 6 by total control circuit 8;
2) when birds, beasts and eggs 1 run to immediately below exciting bank 2, sub-control circuit 6 controls exciting bank 2 and knocks birds, beasts and eggs with percussion power;
3) after vibration sounding is knocked successively by N number of exciting bank 2 uniformly at intervals in birds, beasts and eggs 1 transport process, exciting bank 2 gathers sound and send to data collection and analysis module 9 after Signal-regulated kinase 5 filtering, amplification, data collection and analysis module 9 obtains fowl egg crack according to voice signal and there is result data, data collection and analysis module 9 according to voice signal adopt crackle differentiate computing method judge whether these birds, beasts and eggs exist crackle, and this fowl egg crack is existed result data send to display and memory module carry out showing and storing.
The speed that sub-control circuit 6 runs according to travelling belt 3 and self corresponding exciting bank 2 and the horizontal range between size detection module 4 calculate these birds, beasts and eggs 1 and run to time immediately below the exciting bank 2 corresponding with self, percussion power calculates according to birds, beasts and eggs 1 high low signal, knocks when birds, beasts and eggs 1 are run to immediately below exciting bank 2.
Data collection and analysis module 9 comprises AD converter, FPGA circuit and DSP circuit, simulating signal is converted to digital signal by AD converter by voice signal, be sent to most multipotency and gather buffer memory in the FPGA circuit of 32 road signals, then send to DSP processing of circuit to obtain fowl egg crack in a serial fashion and there is result data, utilize the high speed processing ability of DSP circuit to process.
As shown in Figure 3, exciting bank 2 of the present invention specifically comprises coil 14, iron core 15, motion bar 16 and magnet ring 17, coil winding is outside the iron core 15 of annular, and motion bar 16 to insert in iron core lower slider vertically, and magnet ring 17 is embedded in the center flange bottom motion bar 16.
In order to detect comprehensively birds, beasts and eggs, preferably, each birds, beasts and eggs knock 12-24 time, and namely the preferable range of N is 12-24.
Embodiments of the invention and implementation process as follows:
Birds, beasts and eggs 2 advance along with travelling belt 3, and oneself rolls, first can through the below of size detection module 4, size detection module 4 detects the distance between birds, beasts and eggs peak, send the data to total control circuit 8, total control circuit 8 calculates the minor axis of these birds, beasts and eggs and sends to all control circuits 6, control circuit 6 is by the minor axis of these birds, beasts and eggs, the percussion power that calculating is knocked needed for these birds, beasts and eggs is also kept at corresponding place, (along birds, beasts and eggs working direction, exciting bank 2 is numbered when these birds, beasts and eggs run to No. 1 exciting bank 2, No. 1 ~ No. 24) immediately below time, No. 1 exciting bank extracts the percussion power of these birds, beasts and eggs and performs, No. 1 exciting bank knocks this birds, beasts and eggs, produce sound.When these birds, beasts and eggs continue to run until No. 2 exciting bank 2 time, same No. 2 exciting banks extract the percussion power of these birds, beasts and eggs and perform, and carry out second time knock these birds, beasts and eggs.By that analogy, birds, beasts and eggs will be knocked 24 times.If the birds, beasts and eggs vacancy of a position, size detection module 4 detects that distance exceeds threshold value, so will send empty data to total control circuit 8, empty data are sent to all control circuits 6 by total control circuit 8 again, so when this position runs to below exciting bank, exciting bank can not knock.
Scrambler 7 detects the speed (prestissimo is 5/s) of travelling belt operation in real time and sends to total control circuit 8, total control circuit 8 sends to all control circuits 2 again, control circuit 2 calculates the time that birds, beasts and eggs arrive in real time, ensure that exciting bank can knock correct birds, beasts and eggs with suitable percussion power, ensure the integrality of birds, beasts and eggs and sonorific consistance.
Through mechanical test, when percussion power peak value is greater than 30N, can cause breakage to birds, beasts and eggs, if percussion power is less, the voice signal of generation is more weak, is not easy to the identification of signal.In test, we limit percussion power peak value within the scope of 20N ± 5N, affect percussion power peak value because of have electric current size and knock bar 16 move distance (the i.e. size of birds, beasts and eggs, birds, beasts and eggs are larger, the move distance knocking bar 16 is less, percussion power peak value is also less), in above-mentioned scope, by measuring the size of birds, beasts and eggs, the size that electric current is provided is calculated in order to ensure to knock percussion power peak value when bar 16 knocks birds, beasts and eggs.By preliminary experiment establish ensure that percussion power peak value is in above-mentioned scope time electric current and the model of birds, beasts and eggs size, as shown in Figure 4, according to the size of birds, beasts and eggs, required coil current can according to formula: y=-16.674x+1021.7 calculates.
Birds, beasts and eggs are knocked after vibration sounding, exciting bank 2 gathers the sound sent by birds, beasts and eggs, after the filtering, amplification of Signal-regulated kinase 5, send to data collection and analysis module 9, data collection and analysis module 9 analyzes voice signal, and when birds, beasts and eggs are after 24 times are knocked, data collection and analysis module 9 is in conjunction with 24 voice signals, judge whether these birds, beasts and eggs have crackle, judged result sends to display and memory module 10 to carry out showing and storing.When there are birds, beasts and eggs the below of 24 exciting banks 2 time, produce 24 voice signals simultaneously, need to gather simultaneously, so the mode adopting FPGA and DSP to combine in data collection and analysis module 9 of the present invention, FPGA has the ability of real-time parallel process data, but process data being carried out to FFT and other complexity is not expert at, and DSP is as special digital signal processor, powerful advantage is had to FFT and complicated process, but its shortcoming is to walk abreast and processes multichannel data simultaneously, in the present invention, both are combined.24 road voice signals are by 24 AD converter 11, be input in FPGA, FPGA is as front-end collection passage, gather 24 road signals (maximum 32 tunnels) and buffer memory simultaneously, send to DSP circuit 13 by McBSP (multichannel buffer) interface in a serial fashion afterwards, utilize the high speed processing ability of DSP to process.
Present invention incorporates birds, beasts and eggs velocity interpolation to knock accurately birds, beasts and eggs, and control the size of percussion power for the size of each birds, beasts and eggs, ensure the integrality of birds, beasts and eggs and produce the consistance of signal, bringing outstanding significant technique effect.
Claims (10)
1. a fowl egg crack dynamic detection system, is characterized in that: comprise birds, beasts and eggs (1), exciting bank (2), travelling belt (3), size detection module (4), Signal-regulated kinase (5), sub-control circuit (6), scrambler (7), total control circuit (8), data collection and analysis module (9) and display and memory module (10); Birds, beasts and eggs (1) are placed on travelling belt (3) along with travelling belt (3) conveying, the driving wheel of travelling belt (3) is coaxially connected with scrambler (7), size detection module (4) is arranged on directly over travelling belt (3) upstream entrance place, is provided with N number of exciting bank (2) uniformly at intervals successively along birds, beasts and eggs (1) working direction; Exciting bank (2) is connected to total control circuit (8) and data collection and analysis module (9), and data collection and analysis module (9) is connected with display and storage module (10), and size detection module is connected with total control circuit (8) with scrambler (7).
2. a kind of fowl egg crack dynamic detection system according to claim 1, is characterized in that: described each exciting bank (2) is connected to total control circuit (8) through respective sub-control circuit (6) respectively.
3. a kind of fowl egg crack dynamic detection system according to claim 1, is characterized in that: described each exciting bank (2) is connected to data collection and analysis module (9) through respective Signal-regulated kinase (5) respectively.
4. a kind of fowl egg crack dynamic detection system according to claim 3, it is characterized in that: described data collection and analysis module (9) comprises AD converter, FPGA circuit and DSP circuit, the output terminal of Signal-regulated kinase (5) connects DSP circuit through AD converter, FPGA circuit successively.
5. a kind of fowl egg crack dynamic detection system according to claim 1, is characterized in that:
Described exciting bank (2) specifically comprises coil (14), iron core (15), motion bar (16) and magnet ring (17), coil winding annular iron core (15) outward, motion bar (16) to insert in iron core lower slider vertically, and magnet ring (17) is embedded in the center flange of motion bar (16) bottom.
6. a kind of fowl egg crack dynamic detection system according to claim 1, is characterized in that:
Described N is 12 ~ 24.
7. be applied to a kind of fowl egg crack dynamic testing method of the arbitrary described system of claim 1 ~ 6, it is characterized in that:
1) scrambler (7) detects travelling belt (3) travelling speed in real time and sends to total control circuit (7), the high low signal of birds, beasts and eggs (1) and elapsed time signal are sent to total control circuit (8) by the birds, beasts and eggs (1) that size detection module (4) detects immediately below it, and the high low signal of birds, beasts and eggs (1) and elapsed time signal and travelling belt (3) travelling speed data are sent to each sub-control circuit (6) by total control circuit (8);
2) when birds, beasts and eggs (1) run to immediately below exciting bank (2), sub-control circuit (6) controls exciting bank (2) and knocks birds, beasts and eggs with percussion power;
3) after vibration sounding is knocked successively by N number of exciting bank (2) uniformly at intervals in birds, beasts and eggs (1) transport process, exciting bank (2) gathers sound and send to data collection and analysis module (9) after Signal-regulated kinase (5) filtering, amplification, data collection and analysis module (9) obtains fowl egg crack according to voice signal and there is result data, and this fowl egg crack is existed result data send to display and memory module carry out showing and storing.
8. a kind of fowl egg crack dynamic testing method according to claim 7, it is characterized in that: the speed that described sub-control circuit (6) runs according to travelling belt (3) and the horizontal range between self corresponding exciting bank (2) with size detection module (4) calculate these birds, beasts and eggs (1) and run to time immediately below the exciting bank (2) corresponding with self, percussion power calculates according to birds, beasts and eggs (1) high low signal, knocks when birds, beasts and eggs (1) are run to immediately below exciting bank (2).
9. a kind of fowl egg crack dynamic testing method according to claim 7, it is characterized in that: described data collection and analysis module (9) comprises AD converter, FPGA circuit and DSP circuit, simulating signal is converted to digital signal by AD converter by voice signal, be sent to most multipotency and gather buffer memory in the FPGA circuit of 32 road signals, then send to DSP processing of circuit to obtain fowl egg crack in a serial fashion and there is result data.
10. a kind of fowl egg crack dynamic testing method according to claim 7, is characterized in that:
Described N is 12 ~ 24.
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| CN105758925A (en) * | 2016-03-01 | 2016-07-13 | 浙江大学 | Detection device for poultry egg cracks based on piezoelectric material |
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| CN105758924B (en) * | 2016-03-01 | 2018-05-22 | 浙江大学 | A kind of full face crack on-line measuring device of elastic strip Exciting-simulator system birds, beasts and eggs |
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| CN106908518A (en) * | 2017-03-15 | 2017-06-30 | 苏州鸿轩蛋业有限公司 | A kind of egg cracks detect shunting machine |
| CN108663103A (en) * | 2018-03-21 | 2018-10-16 | 浙江大学 | A kind of birds, beasts and eggs Dynamic Weighing-machine Controller and weighing method based on Photoelectric Signal Processing |
| CN112730611A (en) * | 2020-12-15 | 2021-04-30 | 江苏大学 | LabVIEW-based online egg crack detection system and detection method thereof |
| CN116148357A (en) * | 2023-04-21 | 2023-05-23 | 华裕农业科技有限公司 | Egg crack automatic detection and classification system and method capable of accurately sorting eggs |
| CN116841236A (en) * | 2023-07-05 | 2023-10-03 | 武汉骏腾智拓科技有限公司 | Control circuit of production line equipment is pickled to birds, beasts and eggs |
| CN116841236B (en) * | 2023-07-05 | 2024-03-26 | 武汉骏腾智拓科技有限公司 | Control circuit of production line equipment is pickled to birds, beasts and eggs |
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