CN110662011A - State switching device and method based on electronic signals - Google Patents
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Abstract
The invention relates to a state switching device and method based on electronic signals, wherein the device comprises: the rainfall recorder comprises a rain measuring cylinder, a water suction pump, a cylinder top closing piece and a direct current motor, wherein the diameter of the rain measuring cylinder is a preset length, and the cylinder top closing piece is positioned at the top of the rain measuring cylinder; and the signal analysis device is used for detecting the received filtering sharpened image based on the reference raindrop geometric shape, sending a first trigger instruction when the number of the detected raindrop objects exceeds a preset number threshold, and sending a second trigger instruction when the number of the detected raindrop objects does not exceed the preset number threshold. The state switching device and method based on the electronic signals are convenient to operate and smooth in operation. On the basis of customized image processing, whether rainfall recording is necessary to be started or not is determined based on the detected number of raindrops on site, so that the rainfall recorder is prevented from being in a recording state for a long time.
Description
Technical Field
The invention relates to the field of computers, in particular to a state switching device and method based on electronic signals.
Background
Electronic signals can be divided into two broad categories: analog and digital signals are carriers that transmit, process and store external information electronically. An electronic signal is transmitted as an electron or a hole in a conductive medium, and is transmitted in space using an electromagnetic wave (infrared rays are also electromagnetic waves).
The analog signal is used to express information using a combination of voltage amplitude and frequency, such as information indicating vertical synchronization, frame synchronization, and color by voltage magnitude and different frequency in the analog signal controlling the picture tube in the display. The digital signal is simple, and consists of two states of "0" and "1": above a certain voltage value it is considered as "1" and below a certain voltage value it is "0", which is the basis for computer information processing, i.e. digitization.
Digital signals and analog signals can be converted into each other through digital-to-analog conversion, for example, a repeater obtains sound information from the outside, converts the sound information into analog signals through a microphone, converts the analog signals into digital information for storage after entering a voice chip, reads the stored digital information during playback, converts the digital information into analog signals after DA conversion, outputs the analog signals to a loudspeaker after amplification, can hear the sound, and realizes operations such as fast playing, slow playing, repetition and the like of the voice by controlling the flow of the digital signals.
Disclosure of Invention
The invention at least needs to have the following two key points:
(1) determining whether it is necessary to start rainfall recording based on the detected number of raindrops on site on the basis of customized image processing to avoid that the rainfall recorder is in a recording state for a long time;
(2) in the case of acquiring a referential white balance value for image processing, white balance processing is performed only on image macroblocks in which the object area is exceeded, thereby achieving a balance between the image processing effect and the image processing efficiency.
According to an aspect of the present invention, there is provided an electronic signal based state switching apparatus, the apparatus comprising:
the rainfall recorder comprises a rain measuring cylinder, a water suction pump, a cylinder top closing piece and a direct current motor, wherein the diameter of the rain measuring cylinder is a preset length, and the cylinder top closing piece is positioned at the top of the rain measuring cylinder;
the button camera shooting equipment is arranged near the rainfall recorder and used for executing camera shooting action on the environment where the rainfall recorder is located so as to obtain and output a corresponding current captured image;
the FPM DRAM storage device is used for pre-storing a block size table, and the block size table takes different image resolutions as indexes to store the macroblock size corresponding to each image resolution;
the table look-up and blocking equipment is respectively connected with the button camera equipment and the FPM DRAM storage equipment and is used for searching out the corresponding macro block size from the blocking size table based on the resolution of the received current captured image and blocking the current captured image based on the macro block size to obtain each image macro block;
the data adjusting device is connected with the table look-up partitioning device and used for receiving each image macro block of the currently captured image, acquiring each white balance value of each image macro block, performing average calculation on each white balance value to output a corresponding reference white balance value, and executing the following actions on each image macro block of which the object area exceeds a preset area threshold value in the currently captured image: performing white balance compensation processing on the image macro block based on the reference white balance value to obtain a processed image macro block;
and the immediate processing equipment is connected with the data adjusting equipment and is used for carrying out image integration on each processed image macro block in the current captured image and each image macro block of which the object area does not exceed a preset area threshold value in the current captured image so as to obtain an immediate processing image corresponding to the current captured image, wherein the image macro block of which the object area exceeds the preset area threshold value in the current captured image is an image macro block of which the number of pixel points occupied by the object exceeds the number of pixel points corresponding to the preset area threshold value.
According to another aspect of the present invention, there is also provided an electronic-signal-based status switching method including using the electronic-signal-based status switching apparatus as described above to determine whether it is necessary to start rainfall recording based on the detected number of raindrops on the spot on the basis of customized image processing.
The state switching device and method based on the electronic signals are convenient to operate and smooth in operation. On the basis of customized image processing, whether rainfall recording is necessary to be started or not is determined based on the detected number of raindrops on site, so that the rainfall recorder is prevented from being in a recording state for a long time.
Drawings
Embodiments of the invention will now be described with reference to the accompanying drawings, in which:
fig. 1 is a configuration diagram of a button camera apparatus of a state switching device based on an electronic signal according to an embodiment of the present invention.
Detailed Description
Embodiments of the electronic signal based state switching apparatus and method of the present invention will be described in detail below with reference to the accompanying drawings.
From a meteorological point of view, rain generally refers to the reduction of condensation of water vapor in the air and the amount of water, dew, frost, hail, snow, etc. on the ground, and condensation is not included.
The rainfall is the depth of rainwater falling to the horizontal plane (without leakage, evaporation, loss and the like) within a certain period of time. Measured with a rain gauge. In millimeters. The meteorological station measures every 6 hours in the presence of precipitation. The average annual rainfall of a place for years is called the 'average annual rainfall' of the place.
At present, the structure of rainfall recorder is comparatively simple, only comprises rain graduated flask and graduated flask, need be after having measured the rainfall at every turn, needs professional staff to use the graduated flask to carry out the field measurement, and simultaneously, current rainfall recorder is in operating condition always, nevertheless does not need to carry out the operation of rainfall record under most weather in fact.
In order to overcome the defects, the invention builds the state switching device and method based on the electronic signal, and can effectively solve the corresponding technical problem.
The state switching device based on the electronic signal shown according to the embodiment of the present invention includes:
the rainfall recorder comprises a rain measuring cylinder, a water suction pump, a cylinder top closing piece and a direct current motor, wherein the diameter of the rain measuring cylinder is a preset length, and the cylinder top closing piece is positioned at the top of the rain measuring cylinder;
the button camera shooting device is arranged near the rainfall recorder as shown in fig. 1 and is used for executing camera shooting action on the environment where the rainfall recorder is located so as to obtain and output a corresponding current captured image;
the button camera shooting equipment comprises a button camera shooting main body 1, a camera lens 2 and a connecting cable 3;
the FPM DRAM storage device is used for pre-storing a block size table, and the block size table takes different image resolutions as indexes to store the macroblock size corresponding to each image resolution;
the table look-up and blocking equipment is respectively connected with the button camera equipment and the FPM DRAM storage equipment and is used for searching out the corresponding macro block size from the blocking size table based on the resolution of the received current captured image and blocking the current captured image based on the macro block size to obtain each image macro block;
the data adjusting device is connected with the table look-up partitioning device and used for receiving each image macro block of the currently captured image, acquiring each white balance value of each image macro block, performing average calculation on each white balance value to output a corresponding reference white balance value, and executing the following actions on each image macro block of which the object area exceeds a preset area threshold value in the currently captured image: performing white balance compensation processing on the image macro block based on the reference white balance value to obtain a processed image macro block;
the immediate processing equipment is connected with the data adjusting equipment and is used for carrying out image integration on each processed image macro block in the current captured image and each image macro block of which the object area does not exceed a preset area threshold value in the current captured image so as to obtain an immediate processing image corresponding to the current captured image, wherein the image macro block of which the object area exceeds the preset area threshold value in the current captured image is an image macro block of which the number of pixel points occupied by the object exceeds the number of pixel points corresponding to the preset area threshold value;
the bicubic interpolation device is connected with the instant processing device and used for receiving the instant processing image and executing bicubic interpolation processing based on a 4X4 pixel neighborhood on the instant processing image so as to obtain and output a corresponding interpolation processing image;
the high-pass filtering sharpening device is connected with the bicubic interpolation device and is used for carrying out high-pass filtering sharpening processing on the interpolation processing image so as to obtain a corresponding filtering sharpened image;
the signal analysis device is connected with the high-pass filtering sharpening device and used for detecting the raindrop objects of the received filtering sharpened image based on the reference raindrop geometric shape, sending a first trigger instruction when the number of the detected raindrop objects exceeds a preset number threshold, and sending a second trigger instruction when the number of the detected raindrop objects does not exceed the preset number threshold;
the water suction pump is used for draining rainwater in the rain measuring cylinder after the rainfall recorder finishes one-time recording, and the direct current motor is connected with the cylinder top closing piece;
when receiving a first trigger instruction, the direct current motor drives the barrel top closing piece to leave the top of the rain measuring barrel so as to start the rainfall recording of the rainfall recorder.
Next, a detailed description will be given of a specific configuration of the electronic signal-based state switching device according to the present invention.
In the electronic signal based state switching device:
and when receiving a second trigger instruction, the direct current motor drives the barrel top sealing piece to seal the top of the rain measuring barrel so as to finish the rainfall recording of the rainfall recorder.
In the electronic signal based state switching device:
the preset length is 20 cm to 40 cm, and the shape of the top closing piece of the rain measuring cylinder is matched with the shape of the top opening of the rain measuring cylinder.
The state switching device based on the electronic signal can further comprise:
and the wavelet filtering device is connected with the high-pass filtering sharpening device and is used for receiving the filtering sharpened image and executing wavelet filtering processing on the filtering sharpened image so as to obtain and output a corresponding wavelet filtering image.
The state switching device based on the electronic signal can further comprise:
and the multiple regression interpolation equipment is connected with the wavelet filtering equipment and is used for receiving the wavelet filtering image and executing multiple regression interpolation processing on the wavelet filtering image so as to obtain and output a corresponding multiple regression interpolation image.
The state switching device based on the electronic signal can further comprise:
and the proportion extraction device is connected with the multiple regression interpolation device and used for acquiring the contrast of the wavelet filtered image to be used as a first contrast, and also used for acquiring the contrast of the multiple regression interpolation image to be used as a second contrast, and dividing the second contrast by the first contrast to obtain a reference proportion.
The state switching device based on the electronic signal can further comprise:
the nonlinear interpolation device is connected with the proportion extraction device and used for executing nonlinear interpolation processing on the multiple regression interpolation image when the received reference proportion is smaller than or equal to a preset proportion threshold value so as to obtain and output a corresponding nonlinear interpolation image;
and the nonlinear interpolation equipment is further used for outputting the multiple regression interpolation image as a nonlinear interpolation image when the received reference proportion is larger than the preset proportion threshold value.
The state switching device based on the electronic signal can further comprise:
the MMC memory card is respectively connected with the proportion extraction equipment and the nonlinear interpolation equipment and is used for storing the preset proportion threshold value;
the color level adjusting device is respectively connected with the signal analyzing device and the nonlinear interpolation device and is used for receiving the nonlinear interpolation image, executing color level adjusting processing on the nonlinear interpolation image to obtain a corresponding instant adjusting image, and replacing the filtering sharpened image with the instant adjusting image and sending the instant adjusting image to the signal analyzing device;
the proportion extraction equipment comprises an image receiving component, a contrast operation component, a proportion acquisition component and a proportion output component;
wherein, in the proportion extraction device, the contrast operation component is connected with the image receiving component, and is used for acquiring the contrast of the wavelet filtered image as a first contrast and also used for acquiring the contrast of the multiple regression interpolation image as a second contrast;
wherein, in the scale extraction device, the image receiving component is configured to receive the wavelet filtered image and the multiple regression interpolation image.
Meanwhile, in order to overcome the above disadvantages, the present invention also builds an electronic signal based status switching method, which includes using an electronic signal based status switching device as described above to determine whether it is necessary to start rainfall recording based on the detected number of raindrops on the spot on the basis of customized image processing.
In addition, the term Wavelet (Wavelet) is a small waveform as the name implies. By "small" it is meant that he has attenuating properties; the term "wave" refers to its wave nature, the amplitude of which is in the form of an oscillation between positive and negative phases. Compared with Fourier transform, the wavelet transform is a local analysis of time (space) frequency, and the wavelet transform gradually refines signals (functions) in a multi-scale mode through telescopic translation operation, finally achieves time subdivision at high frequency and frequency subdivision at low frequency, can automatically adapt to the requirement of time-frequency signal analysis, can focus on any details of signals, solves the problem of difficulty of Fourier transform, and becomes a major breakthrough in a scientific method following the Fourier transform. Wavelet transforms have been known as "mathematical microscopes".
The application of wavelet analysis is closely coupled with the theoretical study of wavelet analysis. He has achieved remarkable achievements in the field of the scientific and technical information industry. Electronic information technology is an important area of six high and new technologies, and its important aspect is image and signal processing. Nowadays, signal processing has become an important part of the modern scientific and technical work, and the purpose of signal processing is: accurate analysis, diagnosis, encoding compression and quantization, fast transfer or storage, accurate reconstruction (or recovery). From a mathematical point of view, the signal and image processing can be considered as signal processing (the image can be considered as a two-dimensional signal) together, and can be attributed to the signal processing problem in many applications of many analyses in wavelet analysis. For signals whose properties are stable and invariant over time, the ideal tool for processing remains fourier analysis. However, most of the signals in practical applications are unstable, and a tool particularly suitable for unstable signals is wavelet analysis.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: Read-Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disk, and other various media capable of storing program codes.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. An electronic signal based state switching apparatus, the apparatus comprising:
the rainfall recorder comprises a rain measuring cylinder, a water suction pump, a cylinder top closing piece and a direct current motor, wherein the diameter of the rain measuring cylinder is a preset length, and the cylinder top closing piece is positioned at the top of the rain measuring cylinder;
the button camera shooting equipment is arranged near the rainfall recorder and used for executing camera shooting action on the environment where the rainfall recorder is located so as to obtain and output a corresponding current captured image;
the FPM DRAM storage device is used for pre-storing a block size table, and the block size table takes different image resolutions as indexes to store the macroblock size corresponding to each image resolution;
the table look-up and blocking equipment is respectively connected with the button camera equipment and the FPM DRAM storage equipment and is used for searching out the corresponding macro block size from the blocking size table based on the resolution of the received current captured image and blocking the current captured image based on the macro block size to obtain each image macro block;
the data adjusting device is connected with the table look-up partitioning device and used for receiving each image macro block of the currently captured image, acquiring each white balance value of each image macro block, performing average calculation on each white balance value to output a corresponding reference white balance value, and executing the following actions on each image macro block of which the object area exceeds a preset area threshold value in the currently captured image: performing white balance compensation processing on the image macro block based on the reference white balance value to obtain a processed image macro block;
the immediate processing equipment is connected with the data adjusting equipment and is used for carrying out image integration on each processed image macro block in the current captured image and each image macro block of which the object area does not exceed a preset area threshold value in the current captured image so as to obtain an immediate processing image corresponding to the current captured image, wherein the image macro block of which the object area exceeds the preset area threshold value in the current captured image is an image macro block of which the number of pixel points occupied by the object exceeds the number of pixel points corresponding to the preset area threshold value;
the bicubic interpolation device is connected with the instant processing device and used for receiving the instant processing image and executing bicubic interpolation processing based on a 4X4 pixel neighborhood on the instant processing image so as to obtain and output a corresponding interpolation processing image;
the high-pass filtering sharpening device is connected with the bicubic interpolation device and is used for carrying out high-pass filtering sharpening processing on the interpolation processing image so as to obtain a corresponding filtering sharpened image;
the signal analysis device is connected with the high-pass filtering sharpening device and used for detecting the raindrop objects of the received filtering sharpened image based on the reference raindrop geometric shape, sending a first trigger instruction when the number of the detected raindrop objects exceeds a preset number threshold, and sending a second trigger instruction when the number of the detected raindrop objects does not exceed the preset number threshold;
the water suction pump is used for draining rainwater in the rain measuring cylinder after the rainfall recorder finishes one-time recording, and the direct current motor is connected with the cylinder top closing piece;
when receiving a first trigger instruction, the direct current motor drives the barrel top closing piece to leave the top of the rain measuring barrel so as to start the rainfall recording of the rainfall recorder.
2. The electronic signal based state switching device of claim 1, wherein:
and when receiving a second trigger instruction, the direct current motor drives the barrel top sealing piece to seal the top of the rain measuring barrel so as to finish the rainfall recording of the rainfall recorder.
3. The electronic signal based state switching device of claim 2, wherein:
the preset length is 20 cm to 40 cm, and the shape of the top closing piece of the rain measuring cylinder is matched with the shape of the top opening of the rain measuring cylinder.
4. The electronic signal based state switching device of claim 3, wherein the device further comprises:
and the wavelet filtering device is connected with the high-pass filtering sharpening device and is used for receiving the filtering sharpened image and executing wavelet filtering processing on the filtering sharpened image so as to obtain and output a corresponding wavelet filtering image.
5. The electronic signal based state switching device of claim 4, wherein the device further comprises:
and the multiple regression interpolation equipment is connected with the wavelet filtering equipment and is used for receiving the wavelet filtering image and executing multiple regression interpolation processing on the wavelet filtering image so as to obtain and output a corresponding multiple regression interpolation image.
6. The electronic signal based state switching device of claim 5, wherein the device further comprises:
and the proportion extraction device is connected with the multiple regression interpolation device and used for acquiring the contrast of the wavelet filtered image to be used as a first contrast, and also used for acquiring the contrast of the multiple regression interpolation image to be used as a second contrast, and dividing the second contrast by the first contrast to obtain a reference proportion.
7. The electronic signal based state switching device of claim 6, wherein the device further comprises:
the nonlinear interpolation device is connected with the proportion extraction device and used for executing nonlinear interpolation processing on the multiple regression interpolation image when the received reference proportion is smaller than or equal to a preset proportion threshold value so as to obtain and output a corresponding nonlinear interpolation image;
and the nonlinear interpolation equipment is further used for outputting the multiple regression interpolation image as a nonlinear interpolation image when the received reference proportion is larger than the preset proportion threshold value.
8. The electronic signal based state switching device of claim 7, wherein the device further comprises:
the MMC memory card is respectively connected with the proportion extraction equipment and the nonlinear interpolation equipment and is used for storing the preset proportion threshold value;
the color level adjusting device is respectively connected with the signal analyzing device and the nonlinear interpolation device and is used for receiving the nonlinear interpolation image, executing color level adjusting processing on the nonlinear interpolation image to obtain a corresponding instant adjusting image, and replacing the filtering sharpened image with the instant adjusting image and sending the instant adjusting image to the signal analyzing device;
the proportion extraction equipment comprises an image receiving component, a contrast operation component, a proportion acquisition component and a proportion output component;
wherein, in the proportion extraction device, the contrast operation component is connected with the image receiving component, and is used for acquiring the contrast of the wavelet filtered image as a first contrast and also used for acquiring the contrast of the multiple regression interpolation image as a second contrast;
wherein, in the scale extraction device, the image receiving component is configured to receive the wavelet filtered image and the multiple regression interpolation image.
9. An electronic signal based status switching method comprising using the electronic signal based status switching apparatus according to any one of claims 1 to 8 to determine whether it is necessary to initiate a rainfall recording based on the detected number of raindrops on site on the basis of customized image processing.
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| CN201910929328.4A CN110662011B (en) | 2019-09-29 | 2019-09-29 | State switching device and method based on electronic signals |
| GBGB2012929.2A GB202012929D0 (en) | 2019-09-29 | 2020-08-19 | State switching device and method based on electronic signal |
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| CN111841023A (en) * | 2020-07-21 | 2020-10-30 | 张霞 | Self-adaptive protection mechanism selection platform |
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| CN107767626A (en) * | 2017-11-30 | 2018-03-06 | 中国地质调查局水文地质环境地质调查中心 | A kind of rainfall trigger-type debris flow monitoring pre-warning system and method |
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2019
- 2019-09-29 CN CN201910929328.4A patent/CN110662011B/en active Active
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2020
- 2020-08-19 GB GBGB2012929.2A patent/GB202012929D0/en not_active Ceased
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| CN102707340A (en) * | 2012-06-06 | 2012-10-03 | 南京大学 | Rainfall measurement method based on video images |
| US20160148382A1 (en) * | 2014-11-24 | 2016-05-26 | International Business Machines Corporation | Estimating rainfall precipitation amounts by applying computer vision in cameras |
| CN105510997A (en) * | 2015-12-31 | 2016-04-20 | 武汉圣禹排水系统有限公司 | Novel rain gauge |
| CN106443835A (en) * | 2016-09-30 | 2017-02-22 | 防城港市水利工程技术管理站 | Rainfall detection device |
| CN107767626A (en) * | 2017-11-30 | 2018-03-06 | 中国地质调查局水文地质环境地质调查中心 | A kind of rainfall trigger-type debris flow monitoring pre-warning system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111841023A (en) * | 2020-07-21 | 2020-10-30 | 张霞 | Self-adaptive protection mechanism selection platform |
Also Published As
| Publication number | Publication date |
|---|---|
| GB202012929D0 (en) | 2020-09-30 |
| CN110662011B (en) | 2020-12-01 |
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