CN112748668A - Motor driving platform based on difference data analysis - Google Patents
Motor driving platform based on difference data analysis Download PDFInfo
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- CN112748668A CN112748668A CN202010708583.9A CN202010708583A CN112748668A CN 112748668 A CN112748668 A CN 112748668A CN 202010708583 A CN202010708583 A CN 202010708583A CN 112748668 A CN112748668 A CN 112748668A
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Abstract
The invention relates to a motor driving platform based on difference data analysis, which comprises: the motor driving mechanism is positioned at the starting position of the extreme sports field and comprises a wireless communication interface, signal conversion equipment and a permanent magnet synchronous motor; the water surface camera equipment is positioned above the water surface of the extreme sports field and used for performing instant camera operation on a scene close to the water surface so as to obtain continuous multi-frame water surface acquisition images; and the definition switching mechanism is connected with the water surface camera equipment and is used for determining the camera definition of the water surface collected image of the next frame of the water surface camera equipment based on the content change intensity of the two frames of water surface collected images. The motor driving platform based on the difference data analysis is intelligent in operation, safe and reliable. On the basis of self-adaptive resolution adjustment, the scene that a human body is about to enter water in limited movement is identified and corresponding countermeasures are adopted, so that the probability of occurrence of movement accidents is reduced.
Description
Technical Field
The invention relates to the field of extreme motion, in particular to a motor driving platform based on difference data analysis.
Background
Extreme sports is a general term for a combination of difficult and challenging sports, such as: speed descent, skateboarding, extreme cycling, rock climbing, snowboarding, air surfing, street racing, running crunch, extreme cross country, extreme aquaplaning, extreme skidding, drift board, and the like are all extreme sports.
The extreme sports are developed from various molded sports and various actions in games, life and work, and participate in high-difficulty ornamental sports mainly of young people. In the process of fusing the human beings and the nature, the human beings play the physical and mental potentials to the maximum extent by means of modern high-tech means and challenge the human beings to play recreational sports. It has the risk and stimulation, and not only strives to surpass the spirit of higher, faster and stronger self physiological limit in competitive sports, but also emphasises the spirit of participation, entertainment and brave, and strives to obtain pleasure and achievement when crossing psychological barrier, and at the same time, it also reflects the good desire of human beings to return to nature, return to nature and protect environment, so that it has been praised as "future sports" by all countries in the world.
Disclosure of Invention
In order to solve the technical problems in the related field, the invention provides a motor driving platform based on difference data analysis, which can identify the scene that a human body is about to enter water in limited motion on the basis of self-adaptive resolution adjustment, and adopts corresponding measures to reduce the probability of motion accidents.
Therefore, the present invention needs to have at least two important points:
(1) setting a water surface camera and determining the definition of subsequent shooting according to the intensity of change of image data before and after the shooting of the water surface camera, thereby ensuring that high-definition shooting is carried out on the scene of intense change of a human body close to the water surface;
(2) when the human body is detected to be about to enter water, the motor driving mechanism of the customized mechanism is adopted to lift the human body upwards so as to avoid accidents such as water choking or injury.
According to an aspect of the present invention, there is provided a motor-driven platform based on differential data analysis, the platform comprising:
the motor driving mechanism is positioned at the starting position of the extreme sports field, is connected with the content analysis equipment through the wireless communication interface and is used for driving the foot ropes connected with the motor driving mechanism to lift upwards when the number of the received targets is less than or equal to the preset number threshold;
the motor driving mechanism is also used for stopping driving the foot ropes connected with the motor driving mechanism to lift upwards when the received target number is larger than the preset number threshold;
the motor driving mechanism is fixed on the support frame and comprises a wireless communication interface, a signal conversion device and a permanent magnet synchronous motor;
the water surface camera equipment is positioned above the water surface of the extreme sports field and used for performing instant camera operation on a scene close to the water surface so as to obtain continuous multi-frame water surface acquisition images;
the definition switching mechanism is connected with the water surface camera equipment and is used for determining the camera definition of the water surface collected image of the next frame of the water surface camera equipment based on the content change intensity of the water surface collected images of the front frame and the back frame;
the color level adjusting device is connected with the definition switching mechanism and is used for executing multiple times of color index improvement processing on the received water surface acquisition image corresponding to the current moment so as to obtain and output a corresponding color level adjusting image;
the guiding filtering equipment is connected with the color level adjusting equipment and is used for executing guiding filtering processing on the received color level adjusting image so as to obtain and output a corresponding guiding filtering image;
the adaptive filtering device is positioned near the guide filtering device, is connected with the guide filtering device and is used for executing adaptive recursive filtering processing on the received guide filtering image so as to obtain and output a corresponding adaptive filtering image;
the target detection mechanism is connected with the self-adaptive filtering equipment and is used for detecting a human body imaging area and a water body imaging area where a human body target and a water body target in the self-adaptive filtering image are respectively located;
the content analysis equipment is connected with the target detection mechanism and used for acquiring the lowermost pixel in the human body imaging region and the uppermost pixel in the water body imaging region and identifying the number of the least pixel points at a distance between the two pixels to be output as a target number;
the method for determining the shooting definition of the water surface collected image of the next frame of the water surface shooting equipment based on the content change intensity of the two frames of water surface collected images comprises the following steps: the greater the content change intensity of the front and back frames of the water surface collected image is, the higher the shooting definition of the water surface collected image of the next frame of the water surface shooting equipment is.
According to another aspect of the invention, a motor driving method based on differential data analysis is also provided, and the method comprises the step of using a motor driving platform based on differential data analysis as described above, and judging whether a human body needs to be quickly pulled to avoid relevant accidents according to the detection result of the scene that the human body is about to enter water in the extreme sport field.
The motor driving platform based on the difference data analysis is intelligent in operation, safe and reliable. On the basis of self-adaptive resolution adjustment, the scene that a human body is about to enter water in limited movement is identified and corresponding countermeasures are adopted, so that the probability of occurrence of movement accidents is reduced.
Drawings
Embodiments of the invention will now be described with reference to the accompanying drawings, in which:
fig. 1 is an internal structural view of a permanent magnet synchronous motor of a motor driving platform based on differential data analysis according to an embodiment of the present invention.
Detailed Description
Embodiments of the motor driving stage based on the differential data analysis according to the present invention will be described in detail with reference to the accompanying drawings.
A direct current motor is a rotating electrical machine that can convert direct current electrical energy into mechanical energy (a direct current motor) or convert mechanical energy into direct current electrical energy (a direct current generator). The motor can realize the mutual conversion of direct current electric energy and mechanical energy. When the motor is used as a motor, the motor is a direct current motor and converts electric energy into mechanical energy; when the generator is operated, the generator is a direct current generator and converts mechanical energy into electric energy.
The structure of the direct current motor is composed of a stator and a rotor. The stationary part of the DC motor is called stator, the main function of the stator is to generate magnetic field, and the stator is composed of a base, a main magnetic pole, a commutating pole, an end cover, a bearing, a brush device and the like. The part rotating during operation is called a rotor, mainly used for generating electromagnetic torque and inducing electromotive force, and is a pivot for energy conversion of a direct current motor, so the part is also called an armature and comprises a rotating shaft, an armature iron core, an armature winding, a commutator, a fan and the like.
At present, in some extreme sports places, such as high-altitude parachuting, etc., in order to effectively reduce the injury degree of accidents, the extreme sports places are usually arranged above the water surface, however, in practice, the water surface can also cause human body injury accidents such as water choking or water surface slapping, how to further reduce the injury degree of accidents, and at the same time, ensuring the stimulation degree of extreme sports is a key point and a difficult problem concerned by developers of related safety guarantee facilities.
In order to overcome the defects, the invention builds a motor driving platform based on difference data analysis, and can effectively solve the corresponding technical problem.
The motor driving platform based on the difference data analysis according to the embodiment of the invention comprises:
the motor driving mechanism is positioned at the starting position of the extreme sports field, is connected with the content analysis equipment through the wireless communication interface and is used for driving the foot ropes connected with the motor driving mechanism to lift upwards when the number of the received targets is less than or equal to the preset number threshold;
the motor driving mechanism is also used for stopping driving the foot ropes connected with the motor driving mechanism to lift upwards when the received target number is larger than the preset number threshold;
the motor driving mechanism is fixed on the support frame and comprises a wireless communication interface, a signal conversion device and a permanent magnet synchronous motor;
wherein, the internal structure of the permanent magnet synchronous motor is shown in figure 1;
the water surface camera equipment is positioned above the water surface of the extreme sports field and used for performing instant camera operation on a scene close to the water surface so as to obtain continuous multi-frame water surface acquisition images;
the definition switching mechanism is connected with the water surface camera equipment and is used for determining the camera definition of the water surface collected image of the next frame of the water surface camera equipment based on the content change intensity of the water surface collected images of the front frame and the back frame;
the color level adjusting device is connected with the definition switching mechanism and is used for executing multiple times of color index improvement processing on the received water surface acquisition image corresponding to the current moment so as to obtain and output a corresponding color level adjusting image;
the guiding filtering equipment is connected with the color level adjusting equipment and is used for executing guiding filtering processing on the received color level adjusting image so as to obtain and output a corresponding guiding filtering image;
the adaptive filtering device is positioned near the guide filtering device, is connected with the guide filtering device and is used for executing adaptive recursive filtering processing on the received guide filtering image so as to obtain and output a corresponding adaptive filtering image;
the target detection mechanism is connected with the self-adaptive filtering equipment and is used for detecting a human body imaging area and a water body imaging area where a human body target and a water body target in the self-adaptive filtering image are respectively located;
the content analysis equipment is connected with the target detection mechanism and used for acquiring the lowermost pixel in the human body imaging region and the uppermost pixel in the water body imaging region and identifying the number of the least pixel points at a distance between the two pixels to be output as a target number;
the method for determining the shooting definition of the water surface collected image of the next frame of the water surface shooting equipment based on the content change intensity of the two frames of water surface collected images comprises the following steps: the greater the content change intensity of the front and back frames of the water surface collected image is, the higher the shooting definition of the water surface collected image of the next frame of the water surface shooting equipment is.
Next, the detailed structure of the motor driving stage based on the differential data analysis according to the present invention will be further described.
In the motor drive platform based on difference data analysis:
the content change intensity of the front and back frames of water surface collected images is the number of pixels with non-zero pixel values in a difference image obtained by performing pixel value difference on the front frame of water surface collected image and the back frame of water surface collected image pixel by pixel.
In the motor drive platform based on difference data analysis:
and performing pixel value difference on the pixel-by-pixel execution of the front frame water surface acquisition image and the rear frame water surface acquisition image, namely performing pixel value difference operation on the pixels at the same coordinate position of the front frame water surface acquisition image and the rear frame water surface acquisition image.
In the motor drive platform based on difference data analysis:
in the motor driving mechanism, the wireless communication interface, the signal conversion device and the permanent magnet synchronous motor are connected in sequence.
In the motor drive platform based on difference data analysis:
the adaptive filtering device, the target detection mechanism and the content analysis device are realized by the same CPLD chip.
In the motor drive platform based on difference data analysis:
and respectively realizing the self-adaptive filtering equipment, the target detection mechanism and the content analysis equipment by adopting logic control parts at different positions in the CPLD chip.
The motor driving platform based on the difference data analysis can further comprise:
and the NFC configuration interface is connected with the self-adaptive filtering equipment and is used for configuring various operating parameters for the self-adaptive filtering equipment based on an NFC communication link.
In the motor drive platform based on difference data analysis:
the NFC configuration interface is further connected with the target detection mechanism and used for configuring various operating parameters for the target detection mechanism based on an NFC communication link.
In the motor drive platform based on difference data analysis:
the NFC configuration interface is also connected with the content analysis equipment and is used for configuring various operating parameters for the content analysis equipment based on an NFC communication link;
in the NFC configuration interface, the adaptive filtering device, the target detection mechanism, and the content analysis device have different configuration numbers, and are used to distinguish the adaptive filtering device, the target detection mechanism, and the content analysis device when the NFC configuration interface performs operation parameter configuration.
Meanwhile, in order to overcome the defects, the invention also provides a motor driving method based on the differential data analysis, and the method comprises the step of using the motor driving platform based on the differential data analysis and used for judging whether the human body needs to be quickly pulled to avoid the occurrence of related accidents according to the detection result of the scene that the human body is about to enter the water in the extreme sport field.
In addition, image filtering, namely, suppressing the noise of the target image under the condition of keeping the detail features of the image as much as possible, is an indispensable operation in image preprocessing, and the effectiveness and reliability of subsequent image processing and analysis are directly affected by the quality of the processing effect.
Due to the imperfections of the imaging system, the transmission medium, and the recording device, the digital images are often contaminated by various noises during the formation, transmission, and recording processes thereof. In addition, noise may also be introduced into the resulting image at some point in the image processing when the input image object is not as expected. These noises often appear as an isolated pixel or block of pixels on the image that causes a strong visual effect. In general, the noise signal is not correlated with the object to be studied-it appears in the form of useless information, disturbing the observable information of the image. For digital image signals, the noise table is more or less extreme values, and the extreme values act on the real gray values of image pixels through addition and subtraction to cause bright and dark point interference on the image, so that the image quality is greatly reduced, and the follow-up work of image restoration, segmentation, feature extraction, image identification and the like is influenced. Two basic issues must be considered to construct an effective noise suppression filter: the noise in the target and the background can be effectively removed; meanwhile, the shape, the size and the specific geometric and topological structure characteristics of the image target can be well protected.
One of the commonly used image filtering modes is a non-linear filter, generally speaking, when the signal spectrum and the noise spectrum are mixed or when the signal contains non-superimposed noise, such as noise caused by system nonlinearity or the presence of non-gaussian noise, etc.), the conventional linear filtering techniques, such as fourier transform, while filtering out noise, always blur the image details (such as edges, etc.) in some way, thereby causing the positioning accuracy of the image linear features and the extractability of the features to be reduced. The nonlinear filter is based on a nonlinear mapping relation of an input signal, a specific noise can be mapped to be zero approximately, the main characteristic of the signal is reserved, and therefore the nonlinear filter can overcome the defects of the linear filter to a certain extent.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Although the present invention has been described with reference to the above embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be subject to the scope defined by the claims of the present application.
Claims (10)
1. A motor driven platform based on differential data analysis, the platform comprising:
the motor driving mechanism is positioned at the starting position of the extreme sports field, is connected with the content analysis equipment through the wireless communication interface and is used for driving the foot ropes connected with the motor driving mechanism to lift upwards when the number of the received targets is less than or equal to the preset number threshold;
the motor driving mechanism is also used for stopping driving the foot ropes connected with the motor driving mechanism to lift upwards when the received target number is larger than the preset number threshold;
the motor driving mechanism is fixed on the support frame and comprises a wireless communication interface, a signal conversion device and a permanent magnet synchronous motor;
the water surface camera equipment is positioned above the water surface of the extreme sports field and used for performing instant camera operation on a scene close to the water surface so as to obtain continuous multi-frame water surface acquisition images;
the definition switching mechanism is connected with the water surface camera equipment and is used for determining the camera definition of the water surface collected image of the next frame of the water surface camera equipment based on the content change intensity of the water surface collected images of the front frame and the back frame;
the color level adjusting device is connected with the definition switching mechanism and is used for executing multiple times of color index improvement processing on the received water surface acquisition image corresponding to the current moment so as to obtain and output a corresponding color level adjusting image;
the guiding filtering equipment is connected with the color level adjusting equipment and is used for executing guiding filtering processing on the received color level adjusting image so as to obtain and output a corresponding guiding filtering image;
the adaptive filtering device is positioned near the guide filtering device, is connected with the guide filtering device and is used for executing adaptive recursive filtering processing on the received guide filtering image so as to obtain and output a corresponding adaptive filtering image;
the target detection mechanism is connected with the self-adaptive filtering equipment and is used for detecting a human body imaging area and a water body imaging area where a human body target and a water body target in the self-adaptive filtering image are respectively located;
the content analysis equipment is connected with the target detection mechanism and used for acquiring the lowermost pixel in the human body imaging region and the uppermost pixel in the water body imaging region and identifying the number of the least pixel points at a distance between the two pixels to be output as a target number;
the method for determining the shooting definition of the water surface collected image of the next frame of the water surface shooting equipment based on the content change intensity of the two frames of water surface collected images comprises the following steps: the greater the content change intensity of the front and back frames of the water surface collected image is, the higher the shooting definition of the water surface collected image of the next frame of the water surface shooting equipment is.
2. The differential data analysis-based motor drive platform of claim 1, wherein:
the content change intensity of the front and back frames of water surface collected images is the number of pixels with non-zero pixel values in a difference image obtained by performing pixel value difference on the front frame of water surface collected image and the back frame of water surface collected image pixel by pixel.
3. A motor driven platform based on differential data analysis according to claim 2, wherein:
and performing pixel value difference on the pixel-by-pixel execution of the front frame water surface acquisition image and the rear frame water surface acquisition image, namely performing pixel value difference operation on the pixels at the same coordinate position of the front frame water surface acquisition image and the rear frame water surface acquisition image.
4. A motor driven platform based on differential data analysis according to claim 3, wherein:
in the motor driving mechanism, the wireless communication interface, the signal conversion device and the permanent magnet synchronous motor are connected in sequence.
5. The differential data analysis-based motor drive platform of claim 4, wherein:
the adaptive filtering device, the target detection mechanism and the content analysis device are realized by the same CPLD chip.
6. The differential data analysis-based motor drive platform of claim 5, wherein:
and respectively realizing the self-adaptive filtering equipment, the target detection mechanism and the content analysis equipment by adopting logic control parts at different positions in the CPLD chip.
7. The differential data analysis-based motor-driven platform of claim 6, wherein the platform further comprises:
and the NFC configuration interface is connected with the self-adaptive filtering equipment and is used for configuring various operating parameters for the self-adaptive filtering equipment based on an NFC communication link.
8. The differential data analysis-based motor drive platform of claim 7, wherein:
the NFC configuration interface is further connected with the target detection mechanism and used for configuring various operating parameters for the target detection mechanism based on an NFC communication link.
9. A motor driven platform based on differential data analysis according to claim 8, wherein:
the NFC configuration interface is also connected with the content analysis equipment and is used for configuring various operating parameters for the content analysis equipment based on an NFC communication link;
in the NFC configuration interface, the adaptive filtering device, the target detection mechanism, and the content analysis device have different configuration numbers, and are used to distinguish the adaptive filtering device, the target detection mechanism, and the content analysis device when the NFC configuration interface performs operation parameter configuration.
10. A motor driving method based on differential data analysis, the method comprising providing a motor driving platform based on differential data analysis according to any one of claims 1 to 9, for determining whether a human body needs to be pulled rapidly to avoid a related accident according to a detection result of an imminent water scene of the human body in an extreme sport field.
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