CN116935014B - Handheld data acquisition device and identification method thereof - Google Patents
Handheld data acquisition device and identification method thereof Download PDFInfo
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- CN116935014B CN116935014B CN202310886125.8A CN202310886125A CN116935014B CN 116935014 B CN116935014 B CN 116935014B CN 202310886125 A CN202310886125 A CN 202310886125A CN 116935014 B CN116935014 B CN 116935014B
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 241000282465 Canis Species 0.000 claims abstract description 44
- 238000012216 screening Methods 0.000 claims abstract description 12
- 238000004458 analytical method Methods 0.000 claims abstract description 6
- 239000011521 glass Substances 0.000 claims abstract description 4
- 241000282472 Canis lupus familiaris Species 0.000 claims description 63
- 230000007246 mechanism Effects 0.000 claims description 34
- 238000004364 calculation method Methods 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 12
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- 230000008878 coupling Effects 0.000 claims description 4
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- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 3
- 210000003128 head Anatomy 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
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- 238000013480 data collection Methods 0.000 claims 4
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/17—Image acquisition using hand-held instruments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/04—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or holding steady relative to, a person, e.g. by chains, e.g. rifle butt or pistol grip supports, supports attached to the chest or head
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/18—Eye characteristics, e.g. of the iris
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Abstract
The invention discloses a handheld data acquisition device and an identification method thereof, wherein the handheld data acquisition device comprises a shell, a handle, an image acquisition module and a trigger module, the shell is fixedly connected with the handle, the trigger module comprises a poking block, the poking block is arranged on the handle, a through hole is formed in the surface of the shell, a light-transmitting glass structure is arranged in the through hole, the image acquisition module is arranged in the shell, and the image acquisition module can acquire canine eye features through the through hole. In the implementation process of the invention, through preliminary analysis, a user can carry out preliminary screening on the canine identities according to the appearance characteristics of canine eyes, thereby effectively reducing the workload in iris recognition and accelerating the canine identity recognition speed.
Description
Technical Field
The invention belongs to the technical field of identity recognition, and particularly relates to a handheld data acquisition device and a recognition method thereof.
Background
The canine iris recognition is based on human eye iris recognition technology, and as the number of people raising pets, particularly canine pets, is increasing in recent years, the appearance difference of dogs of some varieties is small, and once the pets are lost, the difficulty of finding the pets is very large. In the prior art, the pet is marked with the tag in a nameplate mode, so that the pet can be retrieved when the pet is lost. But for pets that are lost by theft (or other loss of the tag), once the tag is separated from the pet, the difficulty of the pet wanting to be retrieved is greatly increased.
Because of the uniqueness of the iris, the unique label is marked on the pet by using the iris technology, and the method has important significance for searching for lost pets. However, in the practical implementation, because the conventional iris acquisition device is not convenient to use in a handheld manner, the application provides a handheld data acquisition device and an identification method thereof.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a handheld data acquisition device and an identification method thereof, which effectively solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a hand-held type data acquisition device, including shell, handle, image acquisition module and trigger module, shell and handle rigid coupling are in the same place, trigger module is including stirring the piece, stir the piece and install on the handle, be provided with the through-hole at the surface of shell, install the transparent glass structure in the through-hole, image acquisition module installs in the shell, and image acquisition module can gather dog eye characteristic through the through-hole, and be provided with the baffle between image acquisition module and through-hole, the baffle can shelter from image acquisition module, promptly when this device is not used, light can not enter into in the image acquisition module, still be provided with in the handle and can pivoted second gear, stir between piece and the handle through the second spring link to each other, stir the surface of piece and be provided with first rack, and when stirring the piece and hold and the interior income of handle, first rack can with the second gear cooperation, thereby make the second gear rotate, and the second gear surface winding has the belt.
A limit mechanism is also arranged in the shell and comprises two guide rails which are arranged in parallel, two ends of the baffle are respectively inserted into one guide rail, a slide block is fixedly connected on the baffle and can slide in the guide rails, a first fixed block is fixedly connected on the slide block, a second rack is arranged on the first fixed block,
the shell is also internally provided with a first toggle mechanism which comprises a connecting rod, a first gear and a belt pulley, the connecting rod is rotatably arranged in the shell, the first gear is fixedly connected at one end of the connecting rod, the belt pulley is fixedly connected on the connecting rod, and the first gear is matched with the second rack, so that when the first gear rotates, the first fixed block can move along with the first gear, namely, the baffle can slide along with the first gear at the moment,
the connecting rod is sleeved with a torsion spring, one end of the torsion spring is fixedly connected to the belt pulley, and the other end of the torsion spring is fixedly connected to the shell.
Preferably, a switch is further arranged at one end of the guide rail, the switch is connected with the guide rail through a first spring, namely, when the toggle block is pressed to the limit position, the sliding block can move to one side of the switch and press the switch, the switch is used for controlling the image acquisition module, namely, the image acquisition module can operate after the switch is pressed, and the image acquisition module starts to work.
Preferably, the support module is further arranged in the shell, the support module comprises a support mechanism, the support mechanism comprises a second fixing block, a sliding block and two support rods, the sliding block can slide in the second fixing block, one end of each support rod is hinged to the sliding block, the inclined guide block is fixedly connected in the second fixing block, when the sliding block slides, the support rods can rotate under the action of the inclined guide block, so that the two support rods can be mutually opened to be conveniently supported on the face of a dog, and the distance between the shell and the eyes of the dog is limited.
Preferably, the sliding block is fixedly connected with a driven block, the shell is internally provided with a second toggle mechanism, the structure of the second toggle mechanism is the same as that of the first toggle mechanism, and the driven block is provided with a third rack, so that when the device is used, the second toggle mechanism can be matched with the third rack, and the sliding block can slide
In order to achieve the above purpose, the present invention further provides the following technical solutions: a method for identifying a handheld data acquisition device comprises the following steps,
the first step, the data acquisition device is held by hand, the data acquisition device is placed in front of the head of the dogs, and the eyes of the dogs are ensured to be positioned in an acquisition area,
step two, data acquisition, namely acquiring canine eye characteristics, wherein the eye characteristics comprise eye structure information and iris information,
thirdly, primarily analyzing, primarily screening the canine identity by combining the canine eye structure information,
fourth, second analysis, screening the iris of dogs according to the information screened in the third step,
and fifthly, outputting a result, and outputting a screening structure according to the information screened in the fourth step.
Preferably, the second step comprises in particular the steps of,
step 201, the triggering module is triggered, then the image acquisition module acquires the eye images of dogs,
step 202, the supporting module is supported on the face of the dog, the distance between the eyes of the dog and the image acquisition module can be measured through the distance measuring module and the correcting module, the acquired images can be rotationally corrected according to a preset rule,
step 203, after the canine eye images are collected, the calibration module can measure the canine eye sizes,
and 204, calibrating the canine eye characteristics through a data processing module according to the distance between the canine eyes and the image acquisition module, and calculating various parameters of the canine eyes according to a calculation module.
Preferably, the calibration module comprises the following specific working steps,
s1, marking the highest point of the canine eyes, wherein the highest point is marked as A, the left eye and the right eye are respectively corresponding to A1 and A2,
s2, marking the lowest point of the canine eyes, wherein the lowest point is marked as C, the left eye and the right eye are respectively corresponding to C1 and C2,
s3, marking the furthest point of the canine eyes, wherein the furthest point is marked as B, the left eye and the right eye are respectively corresponding to B1 and B2,
s4, marking the nearest point of the canine eyes, wherein the nearest point is marked as D, the left eye and the right eye are respectively corresponding to D1 and D2,
s5, calibrating the distances among A1C1, A2C2, B1B2, D1D2, B1D1 and B2D 2.
Preferably, the calculation module is internally preset with the following algorithm,
the eye distinguishing degree X of the dogs is calculated,
X1=A1C1/B1D1，
X2=A2C2/B2D2，
the binocular dispersion Y is calculated and,
Y=B1B2/D1D2。
preferably, the calculation module also has the following algorithm,
X3=（X1-X2） 2
and a threshold value T is preset in the calculation module,
when X3 is more than or equal to T, the dog is judged to be big and small,
when X3 is less than T, the eyes of the dogs are judged to be normal.
In order to achieve the above purpose, the present invention provides the following technical solutions: a hand-held data acquisition device comprises an iris recognition module, an image acquisition module, a distance measurement module, a correction module, a calibration module, a data processing module, a calculation module, a triggering module and a supporting module,
the iris recognition module is used for recognizing the iris of dogs and confirming the identity of dogs,
the image acquisition module is used for acquiring the eye image information of dogs,
the distance measuring module is used for measuring the distance between the image acquisition module and the dog eyes,
the correction module is used for rotating the acquired image to a preset direction,
the calibration module is used for calibrating eye point positions of dogs,
the data processing module is used for collecting and calibrating the parameters of dogs,
the calculation module is used for calculating the eye parameters of dogs,
the triggering module is used for triggering the operation of the image acquisition module,
the support module is used for supporting the acquisition device.
Compared with the prior art, the invention has the beneficial effects that:
when the method is implemented, a user can acquire the eye data of dogs in a handheld mode, so that the use of the user is facilitated;
through preliminary analysis, the user can carry out preliminary screening to the identity of dogs according to the appearance characteristics of the eyes of dogs, can effectually reduce the work load when iris discernment, accelerate the speed of dog identity recognition.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a side structure of a housing of a handheld data acquisition device according to the present invention;
fig. 2 is a schematic diagram of a point location of a canine eye marker in the identification method of the handheld data acquisition device of the present invention;
FIG. 3 is a block diagram of a handheld data acquisition device of the present invention;
FIG. 4 is a schematic diagram showing the internal structure of a housing of a handheld data acquisition device according to the present invention;
FIG. 5 is a schematic view showing the internal structure of a handle of a handheld data acquisition device according to the present invention;
FIG. 6 is an enlarged schematic view of a limiting mechanism of a handheld data acquisition device according to the present invention;
FIG. 7 is an enlarged schematic view of a first toggle mechanism of a handheld data acquisition device according to the present invention;
fig. 8 is an enlarged schematic structural view of a supporting mechanism of a handheld data acquisition device according to the present invention.
In the figure: 1. a housing; 2. a handle; 3. a poking block; 4. a through hole; 5. a baffle; 6. a limiting mechanism; 61. a guide rail; 62. a slide block; 63. a first fixed block; 64. a switch; 65. a first spring; 7. a first toggle mechanism; 71. a connecting rod; 72. a first gear; 73. a belt pulley; 74. a torsion spring; 8. a support mechanism; 81. a second fixed block; 82. a sliding block; 83. a support rod; 84. a slope guiding block; 85. a driven block; 9. a second toggle mechanism; 10. a belt; 11. a second spring; 12. and a second gear.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-8, the present invention discloses a method for identifying a handheld data acquisition device, comprising the steps of,
the first step, the data acquisition device is held by hand, the data acquisition device is placed in front of the head of the dogs, and the eyes of the dogs are ensured to be positioned in an acquisition area,
step two, data acquisition, namely acquiring canine eye characteristics, wherein the eye characteristics comprise eye structure information and iris information,
thirdly, primarily analyzing, primarily screening the canine identity by combining the canine eye structure information,
fourth, second analysis, screening the iris of dogs according to the information screened in the third step,
and fifthly, outputting a result, and outputting a screening structure according to the information screened in the fourth step.
When the method is implemented, through preliminary analysis, a user can carry out preliminary screening on the identities of dogs according to the appearance characteristics of the eyes of the dogs, so that the workload in iris recognition can be effectively reduced, and the speed of the identification of the dogs is accelerated.
The second step comprises in particular the steps of,
step 201, the triggering module is triggered, then the image acquisition module acquires the eye images of dogs,
step 202, the supporting module is supported on the face of the dog, the distance between the eyes of the dog and the image acquisition module can be measured through the distance measuring module and the correcting module, the acquired images can be rotationally corrected according to a preset rule,
step 203, after the canine eye images are collected, the calibration module can measure the canine eye sizes,
and 204, calibrating the canine eye characteristics through a data processing module according to the distance between the canine eyes and the image acquisition module, and calculating various parameters of the canine eyes according to a calculation module.
The specific working steps of the calibration module are as follows,
s1, marking the highest point of the canine eyes, wherein the highest point is marked as A, the left eye and the right eye are respectively corresponding to A1 and A2,
s2, marking the lowest point of the canine eyes, wherein the lowest point is marked as C, the left eye and the right eye are respectively corresponding to C1 and C2,
s3, marking the furthest point of the canine eyes, wherein the furthest point is marked as B, the left eye and the right eye are respectively corresponding to B1 and B2,
s4, marking the nearest point of the canine eyes, wherein the nearest point is marked as D, the left eye and the right eye are respectively corresponding to D1 and D2,
s5, calibrating the distances among A1C1, A2C2, B1B2, D1D2, B1D1 and B2D 2.
The following algorithm is preset in the calculation module,
the eye distinguishing degree X of the dogs is calculated,
X1=A1C1/B1D1，
X2=A2C2/B2D2，
the binocular dispersion Y is calculated and,
Y=B1B2/D1D2
through the two parameters, the identities of dogs can be effectively screened, and after the two parameters are screened, the workload of the iris recognition module can be greatly reduced, so that the progress of the identity recognition of dogs is accelerated.
The following algorithm is also included in the calculation module,
X3=（X1-X2） 2
and a threshold value T is preset in the calculation module,
when X3 is more than or equal to T, the dogs are judged to be big eyes and a unique database can be established for the dogs with special eye structures during specific implementation so as to quickly identify the identity of the dogs.
When X3 is less than T, the eyes of the dogs are judged to be normal.
A hand-held data acquisition device comprises an iris recognition module, an image acquisition module, a distance measurement module, a correction module, a calibration module, a data processing module, a calculation module, a triggering module and a supporting module,
the iris recognition module is used for recognizing the iris of dogs and confirming the identity of dogs,
the image acquisition module is used for acquiring the eye image information of dogs,
the distance measuring module is used for measuring the distance between the image acquisition module and the dog eyes,
the correction module is used for rotating the acquired image to a preset direction,
the calibration module is used for calibrating eye point positions of dogs,
the data processing module is used for collecting and calibrating the parameters of dogs,
the calculation module is used for calculating the eye parameters of dogs,
the triggering module is used for triggering the operation of the image acquisition module,
the support module is used for supporting the acquisition device.
The utility model provides a hand-held type data acquisition device, includes shell 1 and handle 2, shell 1 and handle 2 rigid coupling are in the same place, trigger module is including stirring piece 3, stirs piece 3 and installs on handle 2, is provided with through-hole 4 at the surface of shell 1, installs the transparent glass structure in the through-hole 4, and image acquisition module installs in shell 1, and image acquisition module can gather dog class eye feature through-hole 4. And be provided with baffle 5 between image acquisition module and through-hole 4, baffle 5 can shelter from image acquisition module, and the light can not enter into in the image acquisition module when this device does not use promptly. The handle 2 is internally provided with a second gear 12 which can rotate, the poking block 3 is connected with the handle 2 through a second spring 11, the surface of the poking block 3 is provided with a first rack, and when the poking block 3 is held and is retracted into the handle 2, the first rack can be matched with the second gear 12, so that the second gear 12 rotates, and the surface of the second gear 12 is wound with a belt 10.
The shell 1 is also internally provided with a limiting mechanism 6, the limiting mechanism 6 comprises two guide rails 61 which are arranged in parallel, two ends of the baffle 5 are respectively inserted into one guide rail 61, the baffle 5 is fixedly connected with a sliding block 62, the sliding block 62 can slide in the guide rails 61, the sliding block 62 is fixedly connected with a first fixing block 63, and the first fixing block 63 is provided with a second rack.
The shell 1 is internally provided with a first toggle mechanism 7, the first toggle mechanism 7 comprises a connecting rod 71, a first gear 72 and a belt pulley 73, the connecting rod 71 is rotatably arranged in the shell 1, the first gear 72 is fixedly connected at one end of the connecting rod 71, and the belt pulley 73 is fixedly connected on the connecting rod 71. The first gear 72 is engaged with the second rack, so that the first fixed block 63 can move along with the first gear 72 when the first gear 72 rotates, that is, the baffle 5 can slide along with the first fixed block. The belt 10 is wound around the pulley 73 so that when the toggle block 3 is held down, the belt 10 can rotate the pulley 73, i.e., the shutter 5 can be moved at this time.
The connecting rod 71 is sleeved with a torsion spring 74, one end of the torsion spring 74 is fixedly connected to the belt pulley 73, and the other end of the torsion spring 74 is fixedly connected to the shell 1.
The switch 64 is further arranged at one end of the guide rail 61, the switch 64 is connected with the guide rail 61 through the first spring 65, namely, when the toggle block 3 is pressed to the limit position, the sliding block 62 can move to one side of the switch 64 (at the moment, the baffle 5 moves to one side of the through hole 4), the switch 64 is pressed, the switch 64 is used for controlling the image acquisition module, namely, the image acquisition module can operate after the switch 64 is pressed, and then the image acquisition module starts to work.
Still be provided with the support module in shell 1, the support module includes supporting mechanism 8, supporting mechanism 8 is including second fixed block 81, sliding block 82 and two bracing pieces 83, sliding block 82 can slide in the inside of second fixed block 81, and the one end of bracing piece 83 articulates on sliding block 82, still the rigid coupling has the oblique piece 84 of leading in second fixed block 81, when sliding block 82 is gliding, bracing piece 83 can rotate under the effect of oblique piece 84 of leading to make two bracing pieces 83 can open each other and be convenient for support in the face of dog, and then inject the interval of shell 1 and dog eye.
The driven block 85 is fixedly connected to the sliding block 82, the second toggle mechanism 9 is further arranged in the shell 1, the structure of the second toggle mechanism 9 is identical to that of the first toggle mechanism 7, and the driven block 85 is provided with a third rack, so that the second toggle mechanism 9 can be matched with the third rack when the device is used, and the sliding block 82 can slide. The belt 10 can also drive the second toggle mechanism 9 to rotate, and then when the toggle block 3 is held and pressed down, the baffle 5 can slide to one side of the through hole 4, and the image acquisition module can carry out the collection of image, and at this in-process, the bracing piece 83 can stretch out, and the user of being convenient for makes the bracing piece 83 support in the face of dog to the user gathers the eye image of dog.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A hand-held data acquisition device, characterized in that: the device comprises a shell, a handle, an image acquisition module and a triggering module, wherein the shell is fixedly connected with the handle, the triggering module comprises a stirring block, the stirring block is arranged on the handle, a through hole is formed in the surface of the shell, a light-transmitting glass structure is arranged in the through hole, the image acquisition module is arranged in the shell, the image acquisition module can acquire the canine eye characteristics through the through hole, a baffle is arranged between the image acquisition module and the through hole, the baffle can shield the image acquisition module, namely, when the device is not used, light cannot enter the image acquisition module, a second gear capable of rotating is further arranged in the handle, the stirring block is connected with the handle through a second spring, a first rack is arranged on the surface of the stirring block, and when the stirring block is held towards the handle, the first rack can be matched with the second gear, so that the second gear rotates, a belt is wound on the surface of the second gear,
a limit mechanism is also arranged in the shell and comprises two guide rails which are arranged in parallel, two ends of the baffle are respectively inserted into one guide rail, a slide block is fixedly connected on the baffle and can slide in the guide rails, a first fixed block is fixedly connected on the slide block, a second rack is arranged on the first fixed block,
the shell is also internally provided with a first toggle mechanism which comprises a connecting rod, a first gear and a belt pulley, the connecting rod is rotatably arranged in the shell, the first gear is fixedly connected at one end of the connecting rod, the belt pulley is fixedly connected on the connecting rod, and the first gear is matched with the second rack, so that when the first gear rotates, the first fixed block can move along with the first gear, namely, the baffle can slide along with the first gear at the moment,
a torsion spring is sleeved on the connecting rod, one end of the torsion spring is fixedly connected on the belt pulley, the other end of the torsion spring is fixedly connected on the shell,
still be provided with the support module in the shell, the support module includes supporting mechanism, supporting mechanism is including second fixed block, sliding block and two bracing pieces, the sliding block can be in the inside slip of second fixed block, and the one end of bracing piece articulates on the sliding block, still the rigid coupling has the oblique piece of leading in the second fixed block, when the sliding block slides, the bracing piece can rotate under the effect of leading oblique piece to make two bracing pieces can open each other and be convenient for support in the face of dog, and then limit the interval of shell and dog eye.
2. A hand-held data acquisition device according to claim 1, wherein: the switch is further arranged at one end of the guide rail, the switch is connected with the guide rail through the first spring, namely, when the toggle block is pressed to the limit position, the sliding block can move to one side of the switch and press the switch, the switch is used for controlling the image acquisition module, namely, the image acquisition module can operate after the switch is pressed, and the image acquisition module starts to work.
3. A hand-held data acquisition device according to claim 2, wherein: the driven block is fixedly connected to the sliding block, the second toggle mechanism is further arranged in the shell, the structure of the second toggle mechanism is identical to that of the first toggle mechanism, and the third rack is arranged on the driven block, so that the second toggle mechanism can be matched with the third rack when the device is used, and the sliding block can slide.
4. A method of identifying a hand-held data acquisition device according to any one of claims 1 to 3, wherein: comprises the steps of,
the first step, the data acquisition device is held by hand, the data acquisition device is placed in front of the head of the dogs, and the eyes of the dogs are ensured to be positioned in an acquisition area,
step two, data acquisition, namely acquiring canine eye characteristics, wherein the eye characteristics comprise eye structure information and iris information,
thirdly, primarily analyzing, primarily screening the canine identity by combining the canine eye structure information,
fourth, second analysis, screening the iris of dogs according to the information screened in the third step,
and fifthly, outputting a result, and outputting a screening structure according to the information screened in the fourth step.
5. The method for identifying a handheld data collection device of claim 4, wherein: the second step comprises in particular the steps of,
step 201, the triggering module is triggered, then the image acquisition module acquires the eye images of dogs,
step 202, the supporting module is supported on the face of the dog, the distance between the eyes of the dog and the image acquisition module can be measured through the distance measuring module and the correcting module, the acquired images can be rotationally corrected according to a preset rule,
step 203, after the canine eye images are collected, the calibration module can measure the canine eye sizes,
and 204, calibrating the canine eye characteristics through a data processing module according to the distance between the canine eyes and the image acquisition module, and calculating various parameters of the canine eyes according to a calculation module.
6. The method for identifying a handheld data collection device of claim 5, wherein: the specific working steps of the calibration module are as follows,
s1, marking the highest point of the canine eyes, wherein the highest point is marked as A, the left eye and the right eye are respectively corresponding to A1 and A2,
s2, marking the lowest point of the canine eyes, wherein the lowest point is marked as C, the left eye and the right eye are respectively corresponding to C1 and C2,
s3, marking the furthest point of the canine eyes, wherein the furthest point is marked as B, the left eye and the right eye are respectively corresponding to B1 and B2,
s4, marking the nearest point of the canine eyes, wherein the nearest point is marked as D, the left eye and the right eye are respectively corresponding to D1 and D2,
s5, calibrating the distances among A1C1, A2C2, B1B2, D1D2, B1D1 and B2D 2.
7. The method for identifying a handheld data collection device of claim 6, wherein: the following algorithm is preset in the calculation module,
the eye distinguishing degree X of the dogs is calculated,
X1=A1C1/B1D1，
X2=A2C2/B2D2，
the binocular dispersion Y is calculated and,
Y=B1B2/D1D2。
8. the method for identifying a handheld data collection device of claim 7, wherein: the following algorithm is also included in the calculation module,
X3=（X1-X2） 2
and a threshold value T is preset in the calculation module,
when X3 is more than or equal to T, the dog is judged to be big and small,
when X3 is less than T, the eyes of the dogs are judged to be normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310886125.8A CN116935014B (en) | 2023-07-19 | 2023-07-19 | Handheld data acquisition device and identification method thereof |
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