Speed type water meter field signal self-adaptive adjusting system
By performing nonlinear transformation, noise removal and low-pass filtering on the velocity water performance field imaging screen, combined with the signal-to-noise ratio matching technology of the adaptive adjustment mechanism, the problem of poor image processing of the velocity water meter in the prior art is solved, and higher coding quality is achieved.
Patent Information
- Application Number
- CN202510187294.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-05-09
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The prior art is difficult to effectively process images of velocity water performance field imaging images, especially in environments with relatively high signal-to-noise, which cannot meet the image processing requirements of the velocity water meter surface imaging area, resulting in low encoding quality.
The third mapping screen is generated by nonlinear transformation of the logarithmic function, salt and pepper noise removal and Butworth low-pass filtering operations on the entered field imaging screen. The imaging area is identified based on the surface color imaging feature of the velocity water meter, and the adaptive adjustment mechanism determines the size of the reference code block required for intra coding according to the signal-to-noise ratio, and performs targeted intra coding.
The encoding quality of different types of velocity water performance field imaging images is improved, the signal-to-noise ratio matching of the imaging areas of important components is ensured, and the effect and efficiency of image processing are improved.
Smart Images
Figure CN119967189A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of water meters, and in particular to a velocity type water meter field signal adaptive regulation system. Background Art
[0002] Generally, a velocity water meter is installed in a closed pipe, consists of a moving element, and is a water meter that directly obtains its power speed from the speed of the water flow. Typical velocity water meters include rotor water meters and propeller water meters. Among the rotor water meters, there are single-jet water meters and multi-jet water meters. The advantages of velocity water meters are low manufacturing prices and low costs. The disadvantages of velocity water meters are complex mechanical structures. For example, if too much impurities accumulate in the pipe, it will cause small blockages, speed up the flow rate, and calculate more water consumption. Even under normal circumstances, there will be an error of ±5%.
[0003] The environment where the velocity water meter is located is relatively harsh, and the corresponding imaging screen has various types of noise with different amplitude value distributions. If a stereotyped image processing mode is used to process the imaging screen of the environment where the velocity water meter is located, it is obvious that the image processing requirements of the imaging screen of the environment where the velocity water meter is located in various signal-to-noise ratios cannot be met, especially the image processing requirements of various signal-to-noise ratios of the imaging area of the important part of the imaging screen, namely the surface of the velocity water meter, cannot be met. Summary of the invention
[0004] In order to solve the technical problems in the related fields, the present invention provides an adaptive adjustment system for the on-site signal of a velocity water meter, which obtains and outputs a third mapping picture after targeted enhancement processing by sequentially performing a nonlinear transformation operation of applying a logarithmic function, a salt and pepper noise removal operation, and a Butterworth low-pass filtering operation on the on-site imaging pictures of the recorded velocity water meter, and identifies the imaging area of the surface of the velocity water meter in the third mapping picture based on the color imaging characteristics of the surface of the velocity water meter, the color imaging characteristics of the surface of the velocity water meter are the red channel value distribution interval, the green channel value distribution interval, and the blue channel value distribution interval corresponding to the surface of the velocity water meter, and it is particularly critical that an adaptive adjustment mechanism is used to determine the size of a reference coding block required for performing intra-frame coding on the on-site imaging picture based on the signal-to-noise ratio of the imaging area of the surface of the velocity water meter in the third mapping picture, and also An intra-frame coding operation is performed on a field imaging picture using a determined reference coding block size to obtain an intra-frame coding data stream corresponding to the field imaging picture, wherein the determined reference coding block size required for performing intra-frame coding on the field imaging picture is positively correlated with the signal-to-noise ratio of the imaging area on the surface of the velocity water meter in the third mapping picture, so that the size of the reference coding block required for intra-frame coding matches the signal-to-noise ratio of the imaging area of the important components of the field imaging picture of the velocity water meter, and a more refined and computationally demanding reference coding block is selected for the field imaging picture where the imaging area of the important components with more severe picture noise is located to perform intra-frame coding to ensure the coding effect, and a coarser reference coding block is selected for the field imaging picture where the imaging area of the important components with less picture noise is located to perform intra-frame coding to ensure the coding rate, thereby improving the coding quality of field imaging pictures of different types of velocity water meters.
[0005] According to the present invention, a velocity type water meter field signal adaptive adjustment system is provided, the system comprising: A content input device for inputting a live image of a velocity type water meter, wherein the live image is a live image obtained by performing a overhead camera overhead processing on the surface of a velocity type water meter placed in a horizontal state; A first mapping device, connected to the content input device, for performing a nonlinear transformation operation of applying a logarithmic function to the received on-site imaging picture to obtain and output a corresponding first mapping picture; a second mapping device, connected to the first mapping device, and configured to perform a salt and pepper noise removal operation on the received first mapping picture to obtain and output a corresponding second mapping picture; A third mapping device, connected to the second mapping device, for performing a Butterworth low-pass filtering operation on the received second mapping picture to obtain and output a corresponding third mapping picture; a signal identification mechanism connected to the third mapping device, and used to identify an imaging area of the surface of the velocity type water meter in the received third mapping picture based on a color imaging feature of the surface of the velocity type water meter; An adaptive adjustment mechanism, connected to the signal identification mechanism, for determining the size of a reference coding block required for performing intra-frame coding on the live imaging picture based on the signal-to-noise ratio of the imaging area of the surface of the velocity type water meter in the third mapping picture; A coding execution mechanism, connected to the adaptive adjustment mechanism, for performing an intra-frame coding operation on the live imaging picture by using the determined reference coding block size to obtain an intra-frame coding data stream corresponding to the live imaging picture; Wherein, determining the size of the reference coding block required for performing intra-frame coding on the on-site imaging picture based on the signal-to-noise ratio of the imaging area on the surface of the velocity type water meter in the third mapping picture comprises: the determined size of the reference coding block required for performing intra-frame coding on the on-site imaging picture is positively correlated with the signal-to-noise ratio of the imaging area on the surface of the velocity type water meter in the third mapping picture; The encoding execution mechanism is connected to the adaptive adjustment mechanism and is used to perform an intra-frame encoding operation on the live imaging picture by using the determined reference encoding block size to obtain an intra-frame encoding data stream corresponding to the live imaging picture, including: the obtained intra-frame encoding data stream corresponding to the live imaging picture is a binary bit stream; Among them, the imaging area of the surface of the velocity water meter in the third mapping screen received based on the color imaging feature identification of the surface of the velocity water meter includes: the color imaging feature of the surface of the velocity water meter is the red channel value distribution interval, green channel value distribution interval and blue channel value distribution interval corresponding to the surface of the velocity water meter.
[0006] It can be seen that the present invention has at least the following important inventive concepts: Inventive concept A: sequentially performing a nonlinear transformation operation of applying a logarithmic function, a salt and pepper noise removal operation, and a Butterworth low-pass filtering operation on the recorded on-site imaging pictures of the velocity water meter, so as to obtain and output a third mapping picture after the picture is specifically enhanced; Inventive concept B: identifying an imaging area of the surface of the velocity type water meter in the third mapping picture based on color imaging features of the surface of the velocity type water meter, the color imaging features of the surface of the velocity type water meter being a red channel value distribution interval, a green channel value distribution interval, and a blue channel value distribution interval corresponding to the surface of the velocity type water meter; Inventive concept C: An adaptive adjustment mechanism is used to determine the size of a reference coding block required for performing intra-frame coding on a live imaging picture based on the signal-to-noise ratio of an imaging area on the surface of a velocity-type water meter in a third mapping picture, and the determined size of the reference coding block is also used to perform an intra-frame coding operation on the live imaging picture to obtain an intra-frame coding data stream corresponding to the live imaging picture, wherein the determined size of the reference coding block required for performing intra-frame coding on the live imaging picture is positively correlated with the signal-to-noise ratio of an imaging area on the surface of a velocity-type water meter in the third mapping picture, so that the size of the reference coding block required for intra-frame coding matches the signal-to-noise ratio of an imaging area of an important component of the live imaging picture of the velocity-type water meter, and a more refined reference coding block with a larger amount of computation is selected for performing intra-frame coding for a live imaging picture where an imaging area of an important component with more severe picture noise is located to ensure the coding effect, and a coarser reference coding block is selected for performing intra-frame coding for a live imaging picture where an imaging area of an important component with less picture noise is located to ensure the coding rate, thereby improving the coding quality of live imaging pictures of different types of velocity-type water meters. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] The embodiments of the present invention will be described below with reference to the accompanying drawings, wherein:
[0008] Figure 1 Schematic diagram of the internal structure of the velocity type water meter field signal adaptive adjustment system according to the first embodiment of the present invention.
[0009] Figure 2 Schematic diagram of the internal structure of a velocity-type water meter field signal adaptive adjustment system according to a second embodiment of the present invention.
[0010] Figure 3 Schematic diagram of the internal structure of a velocity-type water meter field signal adaptive adjustment system according to a third embodiment of the present invention. DETAILED DESCRIPTION
[0011] The embodiments of the velocity type water meter field signal adaptive adjustment system of the present invention will be described in detail with reference to the accompanying drawings.
[0012] Figure 1 This is a schematic diagram of the internal structure of a velocity-type water meter field signal adaptive adjustment system according to a first embodiment of the present invention, the system comprising: A content input device for inputting a live image of a velocity type water meter, wherein the live image is a live image obtained by performing a overhead camera overhead processing on the surface of a velocity type water meter placed in a horizontal state; For example, a content input device for inputting a live image of a velocity type water meter, wherein the live image is a live image obtained by an overhead camera performing overhead processing on a surface of a velocity type water meter placed in a horizontal state, including: using a programmable logic device to implement the content input device for inputting a live image of a velocity type water meter, wherein the live image is a live image obtained by an overhead camera performing overhead processing on a surface of a velocity type water meter placed in a horizontal state; A first mapping device, connected to the content input device, for performing a nonlinear transformation operation of applying a logarithmic function to the received on-site imaging picture to obtain and output a corresponding first mapping picture; a second mapping device, connected to the first mapping device, and configured to perform a salt and pepper noise removal operation on the received first mapping picture to obtain and output a corresponding second mapping picture; A third mapping device, connected to the second mapping device, for performing a Butterworth low-pass filtering operation on the received second mapping picture to obtain and output a corresponding third mapping picture; a signal identification mechanism connected to the third mapping device, and used to identify an imaging area of the surface of the velocity type water meter in the received third mapping picture based on a color imaging feature of the surface of the velocity type water meter; An adaptive adjustment mechanism, connected to the signal identification mechanism, for determining the size of a reference coding block required for performing intra-frame coding on the live imaging picture based on the signal-to-noise ratio of the imaging area of the surface of the velocity type water meter in the third mapping picture; A coding execution mechanism, connected to the adaptive adjustment mechanism, for performing an intra-frame coding operation on the live imaging picture by using the determined reference coding block size to obtain an intra-frame coding data stream corresponding to the live imaging picture; Wherein, determining the size of the reference coding block required for performing intra-frame coding on the on-site imaging picture based on the signal-to-noise ratio of the imaging area on the surface of the velocity type water meter in the third mapping picture comprises: the determined size of the reference coding block required for performing intra-frame coding on the on-site imaging picture is positively correlated with the signal-to-noise ratio of the imaging area on the surface of the velocity type water meter in the third mapping picture; The encoding execution mechanism is connected to the adaptive adjustment mechanism and is used to perform an intra-frame encoding operation on the live imaging picture by using the determined reference encoding block size to obtain an intra-frame encoding data stream corresponding to the live imaging picture, including: the obtained intra-frame encoding data stream corresponding to the live imaging picture is a binary bit stream; The imaging area of the surface of the velocity type water meter in the third mapping picture received based on the color imaging feature of the surface of the velocity type water meter includes: the color imaging feature of the surface of the velocity type water meter is a red channel value distribution interval, a green channel value distribution interval, and a blue channel value distribution interval corresponding to the surface of the velocity type water meter; The determined size of the reference coding block required for performing intra-frame coding on the on-site imaging picture is positively correlated with the signal-to-noise ratio of the imaging area on the surface of the velocity type water meter in the third mapping picture, including: the lower the signal-to-noise ratio of the imaging area on the surface of the velocity type water meter in the third mapping picture, the smaller the determined size of the reference coding block required for performing intra-frame coding on the on-site imaging picture; And wherein, identifying the imaging area of the surface of the velocity type water meter in the received third mapping picture based on the color imaging feature of the surface of the velocity type water meter also includes: when the red channel value of a certain pixel point in the currently received third mapping picture falls within the red channel value distribution interval corresponding to the surface of the velocity type water meter, the green channel value falls within the green channel value distribution interval corresponding to the surface of the velocity type water meter, and the blue channel value falls within the blue channel value distribution interval corresponding to the surface of the velocity type water meter, it is determined that the certain pixel point is a single component pixel point of the imaging area of the surface of the velocity type water meter; And wherein, identifying the imaging area of the surface of the velocity type water meter in the received third mapping picture based on the color imaging features of the surface of the velocity type water meter also includes: when the red channel value of a certain pixel point in the currently received third mapping picture falls outside the red channel value distribution interval corresponding to the surface of the velocity type water meter, judging that the certain pixel point is a single pixel point outside the imaging area of the surface of the velocity type water meter.
[0013] Figure 2 Schematic diagram of the internal structure of a velocity-type water meter field signal adaptive adjustment system according to a second embodiment of the present invention.
[0014] and Figure 1 different, Figure 2 The velocity type water meter field signal adaptive regulation system may also include the following components: a sound collection mechanism, which is arranged near the content input device, the first mapping device, the second mapping device and the third mapping device and is connected to the content input device, the first mapping device, the second mapping device and the third mapping device respectively; Among them, the sound collection mechanism is arranged near the content input device, the first mapping device, the second mapping device and the third mapping device and is respectively connected to the content input device, the first mapping device, the second mapping device and the third mapping device, including: the sound collection mechanism is used to respectively perform sound collection services for the content input device, the first mapping device, the second mapping device and the third mapping device.
[0015] Figure 3 Schematic diagram of the internal structure of a velocity-type water meter field signal adaptive adjustment system according to a third embodiment of the present invention.
[0016] and Figure 1 different, Figure 3 The velocity type water meter field signal adaptive regulation system may also include the following components: a display driving mechanism, disposed near the content input device, the first mapping device, the second mapping device, and the third mapping device and connected to the content input device, the first mapping device, the second mapping device, and the third mapping device, respectively; Among them, the display driving mechanism is arranged near the content entry device, the first mapping device, the second mapping device and the third mapping device and is respectively connected to the content entry device, the first mapping device, the second mapping device and the third mapping device, including: the display driving mechanism is used to realize on-site display of abnormal states of the content entry device, the first mapping device, the second mapping device and the third mapping device, respectively.
[0017] Next, the specific structure of the velocity type water meter field signal adaptive adjustment system of the present invention will be further described.
[0018] In the speed type water meter field signal adaptive adjustment system according to any embodiment of the present invention: A directional adjustment device is used to perform image data processing on the output data of the content entry device, the first mapping device, the second mapping device and the third mapping device to obtain output processed data corresponding to the content entry device, the first mapping device, the second mapping device and the third mapping device respectively.
[0019] In the speed type water meter field signal adaptive adjustment system according to any embodiment of the present invention: Using a directional adjustment device to perform image data processing on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processed data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively includes: performing logarithmic image enhancement on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processed data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively.
[0020] In the speed type water meter field signal adaptive adjustment system according to any embodiment of the present invention: Using a directional adjustment device to perform image data processing on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processing data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively includes: performing geometric correction on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processing data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively.
[0021] In the speed type water meter field signal adaptive adjustment system according to any embodiment of the present invention: Using a directional adjustment device to perform image data processing on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processing data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively includes: performing midpoint filtering on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processing data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively.
[0022] And in the speed type water meter field signal adaptive adjustment system according to any embodiment of the present invention: Using a directional adjustment device to perform image data processing on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processing data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively includes: performing maximum filtering on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processing data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively.
[0023] In addition, in the velocity water meter field signal adaptive adjustment system, identifying the imaging area of the surface of the velocity water meter in the received third mapping picture based on the color imaging characteristics of the surface of the velocity water meter further includes: when a green channel value of a certain pixel point in the currently received third mapping picture falls outside the green channel value distribution interval corresponding to the surface of the velocity water meter, determining that the certain pixel point is a single pixel point outside the imaging area of the surface of the velocity water meter; And wherein, identifying the imaging area of the surface of the velocity type water meter in the received third mapping picture based on the color imaging features of the surface of the velocity type water meter also includes: when the blue channel value of a certain pixel point in the currently received third mapping picture falls outside the blue channel value distribution interval corresponding to the surface of the velocity type water meter, judging that the certain pixel point is a single pixel point outside the imaging area of the surface of the velocity type water meter.
[0024] The adaptive adjustment system for the on-site signal of a velocity water meter of the present invention is used to address the technical problem that the image processing of the on-site imaging picture of the velocity water meter in the prior art is always the same and fails to take into account the signal-to-noise ratio of the important component, namely, the surface imaging area of the velocity water meter. An adaptive adjustment mechanism is used to determine the size of the reference coding block required for performing intra-frame coding on the on-site imaging picture based on the signal-to-noise ratio of the surface imaging area of the velocity water meter in the optimized processed picture, so that the size of the reference coding block required for the intra-frame coding matches the signal-to-noise ratio of the imaging area of the important component of the on-site imaging picture of the velocity water meter, thereby improving the coding quality of the on-site imaging pictures of different types of velocity water meters and solving the above-mentioned technical problems.
[0025] Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that various modifications and substitutions may be made thereto without departing from the spirit and scope of the invention as set forth in the appended claims.
Claims
1. A velocity water meter field signal adaptive adjustment system, characterized in that: The system comprises: A content input device for inputting a live image of a velocity type water meter, wherein the live image is a live image obtained by performing a overhead camera overhead processing on the surface of a velocity type water meter placed in a horizontal state; A first mapping device, connected to the content input device, for performing a nonlinear transformation operation of applying a logarithmic function to the received on-site imaging picture to obtain and output a corresponding first mapping picture; a second mapping device, connected to the first mapping device, and configured to perform a salt and pepper noise removal operation on the received first mapping picture to obtain and output a corresponding second mapping picture; A third mapping device, connected to the second mapping device, for performing a Butterworth low-pass filtering operation on the received second mapping picture to obtain and output a corresponding third mapping picture; a signal identification mechanism connected to the third mapping device, and used to identify the imaging area of the surface of the velocity type water meter in the received third mapping picture based on the color imaging characteristics of the surface of the velocity type water meter, including: the color imaging characteristics of the surface of the velocity type water meter are the red channel value distribution interval, the green channel value distribution interval and the blue channel value distribution interval corresponding to the surface of the velocity type water meter; An adaptive adjustment mechanism, connected to the signal identification mechanism, is used to determine the size of the reference coding block required for performing intra-frame coding on the live imaging picture based on the signal-to-noise ratio of the imaging area on the surface of the velocity type water meter in the third mapping picture, including: the determined size of the reference coding block required for performing intra-frame coding on the live imaging picture is positively correlated with the signal-to-noise ratio of the imaging area on the surface of the velocity type water meter in the third mapping picture; The coding execution mechanism is connected to the adaptive adjustment mechanism and is used to perform intra-frame coding operations on the live imaging picture using a determined reference coding block size to obtain an intra-frame coding data stream corresponding to the live imaging picture, including: the obtained intra-frame coding data stream corresponding to the live imaging picture is a binary bit stream.
2. The velocity water meter field signal adaptive adjustment system according to claim 1, characterized in that: The size of the reference coding block required for performing intra-frame coding on the on-site imaging picture is positively correlated with the signal-to-noise ratio of the imaging area on the surface of the velocity water meter in the third mapping picture, including: the lower the signal-to-noise ratio of the imaging area on the surface of the velocity water meter in the third mapping picture, the smaller the size of the reference coding block required for performing intra-frame coding on the on-site imaging picture.
3. The velocity type water meter field signal adaptive adjustment system according to claim 2, characterized in that: Identifying the imaging area of the surface of the velocity type water meter in the received third mapping picture based on the color imaging feature of the surface of the velocity type water meter also includes: when a red channel value of a certain pixel point in the currently received third mapping picture falls within a red channel value distribution interval corresponding to the surface of the velocity type water meter, a green channel value falls within a green channel value distribution interval corresponding to the surface of the velocity type water meter, and a blue channel value falls within a blue channel value distribution interval corresponding to the surface of the velocity type water meter, determining that the certain pixel point is a single component pixel point of the imaging area of the surface of the velocity type water meter; Among them, the imaging area of the surface of the velocity type water meter in the received third mapping picture based on the color imaging feature identification of the surface of the velocity type water meter also includes: when the red channel value of a certain pixel point in the currently received third mapping picture falls outside the red channel value distribution interval corresponding to the surface of the velocity type water meter, it is judged that the certain pixel point is a single pixel point outside the imaging area of the surface of the velocity type water meter.
4. The velocity type water meter field signal adaptive adjustment system according to claim 3, characterized in that: The system further comprises: a sound collection mechanism, which is arranged near the content input device, the first mapping device, the second mapping device and the third mapping device and is connected to the content input device, the first mapping device, the second mapping device and the third mapping device respectively; Among them, the sound collection mechanism is arranged near the content input device, the first mapping device, the second mapping device and the third mapping device and is respectively connected to the content input device, the first mapping device, the second mapping device and the third mapping device, including: the sound collection mechanism is used to respectively perform sound collection services for the content input device, the first mapping device, the second mapping device and the third mapping device.
5. The velocity type water meter field signal adaptive adjustment system according to claim 3, characterized in that: The system further comprises: a display driving mechanism, disposed near the content input device, the first mapping device, the second mapping device, and the third mapping device and connected to the content input device, the first mapping device, the second mapping device, and the third mapping device, respectively; Among them, the display driving mechanism is arranged near the content entry device, the first mapping device, the second mapping device and the third mapping device and is respectively connected to the content entry device, the first mapping device, the second mapping device and the third mapping device, including: the display driving mechanism is used to realize on-site display of abnormal states of the content entry device, the first mapping device, the second mapping device and the third mapping device, respectively.
6. The velocity water meter field signal adaptive adjustment system according to any one of claims 3 to 5, characterized in that: A directional adjustment device is used to perform image data processing on the output data of the content entry device, the first mapping device, the second mapping device and the third mapping device to obtain output processed data corresponding to the content entry device, the first mapping device, the second mapping device and the third mapping device respectively.
7. The velocity water meter field signal adaptive adjustment system according to claim 6, characterized in that: Using a directional adjustment device to perform image data processing on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processed data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively includes: performing logarithmic image enhancement on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processed data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively.
8. The velocity water meter field signal adaptive adjustment system according to claim 6, characterized in that: Using a directional adjustment device to perform image data processing on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processing data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively includes: performing geometric correction on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processing data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively.
9. The velocity type water meter field signal adaptive adjustment system according to claim 6, characterized in that: Using a directional adjustment device to perform image data processing on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processing data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively includes: performing midpoint filtering on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processing data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively.
10. The velocity water meter field signal adaptive adjustment system according to claim 6, characterized in that: Using a directional adjustment device to perform image data processing on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processing data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively includes: performing maximum filtering on the output data of the content entry device, the first mapping device, the second mapping device, and the third mapping device to obtain the output processing data corresponding to the content entry device, the first mapping device, the second mapping device, and the third mapping device respectively.