AC ammeter snapshot information dynamic management system

Abstract

The invention relates to an AC ammeter snapshot information dynamic management system comprising a wireless snapshot device used for triggering on-site snapshot operation of an AC ammeter operation environment under the control of a wireless control command so as to obtain a wireless snapshot image; and the parameter correction mechanism is used for determining the area proportion of the effective imaging area occupying the sharpening operation image and calculating the size of the inter-frame coding block which is monotonically and positively associated with the area proportion. The AC ammeter snapshot information dynamic management system is stable in operation and simple and convenient to operate. The area proportion of the effective imaging area where the pointer of the alternating current electric meter is located in the sharpening operation image can be determined, and the size of the inter-frame coding block which is monotonically and positively associated with the area proportion is calculated based on the area proportion, so that the dynamic correction of the size of the inter-frame coding block based on the imaging size of the key component is realized; and the inter-frame coding effect and quality of the key component, namely the pointer of the alternating-current electric meter, are ensured.

Description

Technical Field

[0001] The present invention relates to the field of alternating current (AC) meters, and in particular to a dynamic management system for captured information of AC meters. Background Art

[0002] AC ammeters are usually embedded and installed on ships or other power equipment to measure AC voltage with a rated operating frequency of 50Hz or 60Hz. DC ammeters and AC ammeters are very different and cannot be interchanged for measurement, and there is no way to interchange them. For large current ammeters, DC ammeters are actually just 75 millivolt DC voltmeters (measuring the millivolt voltage on the shunt), while AC ammeters have very small internal resistance (measuring the short-circuit current of the secondary of the transformer), which is short-circuited to the circuit, and the current can allow AC 5 amperes to flow through. For example, wide-angle AC ammeters can be embedded and installed on ships, locomotives, power stations, mining and metallurgy, petrochemicals or other mobile power equipment to measure AC currents with a rated operating frequency of 50, 400, or 427Hz.

[0003] When processing the on-site monitoring screen of the AC meter, the most important thing to pay attention to is not the imaging quality, compression effect and reconstruction effect of the overall picture, but the imaging quality, compression effect and reconstruction effect of the pointer of the AC meter in the on-site monitoring screen. Therefore, it is necessary to match the image processing mode with the imaging area of ​​the pointer of the AC meter to match the image processing with the imaging characteristics of the pointer of the AC meter as much as possible, so as to ensure the imaging quality, compression effect and reconstruction effect of the pointer of the AC meter. Summary of the invention

[0004] In order to solve the technical problems in the related fields, the present invention provides a dynamic management system for captured information of an AC meter, which can determine the area ratio of the effective imaging area where the pointer of the AC meter is located in the sharpening operation image, and calculate the size of the inter-frame coding block that is monotonically positively associated with the area ratio based on the area ratio, collect the size of the inter-frame coding block obtained by calculation, search the inter-frame coding block for performing an inter-frame coding operation on the wireless captured image, so as to obtain the inter-frame coding data stream corresponding to the wireless captured image, thereby realizing dynamic correction of the inter-frame coding block size based on the imaging size of the key component, so that the inter-frame coding block size matches the imaging size of the key component, and ensures the inter-frame coding effect and quality of the key component, namely the pointer of the AC meter.

[0005] According to the present invention, a dynamic management system for captured information of AC meters is provided, the system comprising: A wireless capture device is arranged just above the AC meter and is used to trigger an on-site capture operation of the AC meter operating environment under the control of a wireless control command to obtain and output a corresponding wireless capture image; A band-stop filter device, connected to the wireless capture device, for performing a band-stop filter process on the received wireless capture image to obtain and output a corresponding band-stop filter image; a content enhancement device, connected to the band-stop filter device, for performing grayscale transformation enhancement processing on the received band-stop filter image to obtain and output a corresponding content-enhanced image; A sharpening operation device, connected to the content enhancement device, for performing image content sharpening processing using a Sobel operator on the received content enhancement image to obtain and output a corresponding sharpening operation image; A pointer identification mechanism, connected to the sharpening operation device, is used to identify a plurality of pointer imaging areas from the received sharpening operation image based on a standard contour pattern of the pointer of the AC meter, and output the pointer imaging area with the largest number of pixels as a valid imaging area; A parameter correction mechanism, connected to the pointer identification mechanism, for determining the area ratio of the received effective imaging area to the sharpening operation image, and calculating the size of the inter-frame coding block that is monotonically positively correlated with the area ratio based on the area ratio; A coding operation mechanism connected to the parameter correction mechanism, used to collect the size of the calculated inter-frame coding block and search the inter-frame coding block for performing an inter-frame coding operation on the wireless captured image to obtain an inter-frame coding data stream corresponding to the wireless captured image; The parameter correction mechanism is connected to the pointer identification mechanism, and is used to determine the area ratio of the received effective imaging area occupied by the sharpening operation image, and calculate the size of the inter-frame coding block monotonically positively associated with the area ratio based on the area ratio, including: the smaller the value of the area ratio, the smaller the number of pixels occupied by the calculated inter-frame coding block; Among them, the parameter correction mechanism is connected to the pointer identification mechanism, and is used to determine the area ratio of the received effective imaging area occupied by the sharpening operation image, and calculate the size of the inter-frame coding block that is monotonically positively associated with the area ratio based on the area ratio, and also includes: using a content mapping function to represent the content mapping relationship between the size of the inter-frame coding block and the area ratio that is monotonically positively associated.

[0006] Therefore, the present invention has the following three outstanding technical effects: Technical effect A: A wireless capture device is introduced, which is arranged just above the AC meter, and is used to trigger an on-site capture operation of the AC meter operating environment under the control of a wireless control command, so as to obtain and output a corresponding wireless capture image, and continuously perform a band-stop filtering process, a grayscale transformation enhancement process, and an image content sharpening process using a Sobel operator on the wireless capture image, so as to obtain and output a sharpened operation image with better quality; Technical effect B: Based on the standard contour pattern of the pointer of the AC meter, multiple pointer imaging areas are identified from the received sharpened operation image, and the pointer imaging area with the largest number of pixels is output as the effective imaging area. The standard contour pattern of the pointer of the AC meter is an imaging image of the pointer of the AC meter as a part, which is taken from above and includes only a single pointer in the factory state; Technical effect C: Determine the area ratio of the received effective imaging area occupied by the sharpening operation image, and calculate the size of the inter-frame coding block that is monotonically positively correlated with the area ratio based on the area ratio, collect the size of the inter-frame coding block obtained by calculation, search the inter-frame coding block for performing inter-frame coding operation on the wireless captured image, so as to obtain the inter-frame coding data stream corresponding to the wireless captured image, thereby realizing dynamic correction of the inter-frame coding block size based on the imaging size of the key component, so that the inter-frame coding block size matches the imaging size of the key component, thereby ensuring the inter-frame coding effect and quality of the key component.

[0007] The AC meter snapshot information dynamic management system of the present invention is stable in operation and easy to operate. Since the area ratio of the effective imaging area where the pointer of the AC meter is located in the sharpening operation image can be determined, and the size of the inter-frame coding block monotonically positively correlated with the area ratio is calculated based on the area ratio, the dynamic correction of the inter-frame coding block size based on the imaging size of the key component is realized, and the inter-frame coding effect and quality of the key component, i.e., the pointer of the AC meter, are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The embodiments of the present invention will be described below with reference to the accompanying drawings, wherein:

[0009] Figure 1 The structure block diagram of the AC meter snapshot information dynamic management system according to the first embodiment of the present invention is shown.

[0010] Figure 2 The structure block diagram of the AC meter snapshot information dynamic management system according to the second embodiment of the present invention is shown.

[0011] Figure 3 1 is a structural block diagram of an AC meter snapshot information dynamic management system according to Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0012] The following will describe in detail an embodiment of the AC meter snapshot information dynamic management system of the present invention with reference to the accompanying drawings.

[0013] Figure 1 The structure block diagram of the AC meter snapshot information dynamic management system according to the first embodiment of the present invention is shown, and the system includes: A wireless capture device is arranged just above the AC meter and is used to trigger an on-site capture operation of the AC meter operating environment under the control of a wireless control command to obtain and output a corresponding wireless capture image; For example, a wireless capture device is arranged just above an AC meter and is used to trigger an on-site capture operation of the AC meter operating environment under the control of a wireless control command to obtain and output a corresponding wireless capture image, including: the wireless capture device includes a wireless transceiver interface and a capture execution component; A band-stop filter device, connected to the wireless capture device, for performing a band-stop filter process on the received wireless capture image to obtain and output a corresponding band-stop filter image; a content enhancement device, connected to the band-stop filter device, for performing grayscale transformation enhancement processing on the received band-stop filter image to obtain and output a corresponding content-enhanced image; A sharpening operation device, connected to the content enhancement device, for performing image content sharpening processing using a Sobel operator on the received content enhancement image to obtain and output a corresponding sharpening operation image; A pointer identification mechanism, connected to the sharpening operation device, is used to identify a plurality of pointer imaging areas from the received sharpening operation image based on a standard contour pattern of the pointer of the AC meter, and output the pointer imaging area with the largest number of pixels as a valid imaging area; A parameter correction mechanism, connected to the pointer identification mechanism, for determining the area ratio of the received effective imaging area to the sharpening operation image, and calculating the size of the inter-frame coding block that is monotonically positively correlated with the area ratio based on the area ratio; A coding operation mechanism connected to the parameter correction mechanism, used to collect the size of the calculated inter-frame coding block and search the inter-frame coding block for performing an inter-frame coding operation on the wireless captured image to obtain an inter-frame coding data stream corresponding to the wireless captured image; The parameter correction mechanism is connected to the pointer identification mechanism, and is used to determine the area ratio of the received effective imaging area occupied by the sharpening operation image, and calculate the size of the inter-frame coding block monotonically positively associated with the area ratio based on the area ratio, including: the smaller the value of the area ratio, the smaller the number of pixels occupied by the calculated inter-frame coding block; The parameter correction mechanism is connected to the pointer identification mechanism, and is used to determine the area ratio of the received effective imaging area to the sharpening operation image, and calculate the size of the inter-frame coding block that is monotonically positively associated with the area ratio based on the area ratio, and further includes: using a content mapping function to represent the content mapping relationship between the size of the inter-frame coding block and the area ratio that is monotonically positively associated; The parameter correction mechanism is connected to the pointer identification mechanism, and is used to determine the area ratio of the received effective imaging area occupied by the sharpening operation image, and calculate the size of the inter-frame coding block monotonically positively associated with the area ratio based on the area ratio, and further includes: in the content mapping function, the area ratio is an input parameter of the content mapping function, and the size of the inter-frame coding block monotonically positively associated with the area ratio is an output parameter of the content mapping function; The method includes: identifying a plurality of pointer imaging areas from the received sharpening operation image based on the standard contour pattern of the pointer of the AC meter, and outputting the pointer imaging area with the largest number of pixels as the effective imaging area; the standard contour pattern of the pointer of the AC meter is an imaging image of the pointer of the AC meter taken from above when it is a part and in a factory state, including only a single pointer; And wherein the parameter correction mechanism is connected to the pointer identification mechanism, and is used to determine the area ratio of the received effective imaging area to the sharpening operation image, and calculate the size of the inter-frame coding block that is monotonically positively correlated with the area ratio based on the area ratio, and also includes: using a numerical simulation mode to implement testing and simulation of the operation process of the content mapping function Figure 2 The structure block diagram of the AC meter snapshot information dynamic management system according to the second embodiment of the present invention is shown.

[0014] Compared to Figure 1 , Figure 2 The AC meter snapshot information dynamic management system may also include: A dust measuring mechanism, comprising a plurality of dust measuring units, for respectively measuring current surface dust concentration values ​​of the band-stop filter device, the content enhancement device, the sharpening operation device, and the wireless capture device; Wherein, the dust measuring mechanism includes a plurality of dust measuring units, which are used to respectively measure the current surface dust concentration values ​​of the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device, including: the plurality of dust measuring units respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device are a plurality of non-contact dust concentration sensors; Wherein, the dust measurement mechanism includes a plurality of dust measurement units for respectively measuring the current surface dust concentration values ​​of the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device, and further includes: the internal structures of a plurality of non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device are the same; Wherein, the dust measurement mechanism includes a plurality of dust measurement units for respectively measuring the current surface dust concentration values ​​of the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device, and further includes: a plurality of non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device have the same dust measurement upper limit threshold and dust measurement lower limit threshold; Among them, the dust measuring mechanism includes multiple dust measuring units, which are used to respectively measure the current surface dust concentration values ​​of the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device. It also includes: the distances between multiple non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device are equal.

[0015] Figure 3 1 is a structural block diagram of an AC meter snapshot information dynamic management system according to Embodiment 3 of the present invention.

[0016] Compared to Figure 1 , Figure 3 The AC meter snapshot information dynamic management system may also include: a content notification device, connected to a plurality of non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device, and the wireless capture device, respectively, and used to perform corresponding dust alarm actions based on dust concentration measurement results of the plurality of non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device, and the wireless capture device; Wherein, the content notification device is respectively connected to a plurality of non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device, and is used to perform corresponding dust alarm actions based on dust concentration measurement results of the plurality of non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device, including: the content notification device has a built-in dust receiving unit, a dust judging unit and a notification execution unit; Wherein, the content notification device is respectively connected to a plurality of non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device, and is used to perform corresponding dust alarm actions based on dust concentration measurement results of the plurality of non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device, and further comprises: in the content notification device, the dust receiving unit, the dust judging unit and the notification execution unit are sequentially connected; And wherein, in the content notification device, the dust receiving unit, the dust judging unit and the notification execution unit are sequentially connected, including: in the content notification device, the dust receiving unit, the dust judging unit and the notification execution unit share the same serial data configuration component.

[0017] In addition, in the AC meter snapshot information dynamic management system, a parameter correction mechanism is connected to the pointer identification mechanism, and is used to determine the area ratio of the received effective imaging area occupied by the sharpening operation image, and calculate the size of the inter-frame coding block monotonically positively associated with the area ratio based on the area ratio, and further includes: selecting a CPLD chip to implement the parameter correction mechanism; Specifically, the parameter correction mechanism is connected to the pointer identification mechanism, and is used to determine the area ratio of the received effective imaging area occupied by the sharpening operation image, and calculate the size of the inter-frame coding block that is monotonically positively correlated with the area ratio based on the area ratio. It also includes: the CPLD chip is programmed and designed using the VHDL language.

[0018] After describing the present invention in detail, those skilled in the art will recognize that, for the present disclosure, the present invention can be modified without departing from the concept of the present invention described herein. Therefore, the scope of the present invention should not be limited to the specific embodiments shown and described.

Claims

1. A dynamic management system for AC meter snapshot information, characterized in that: The system comprises: A wireless capture device is arranged just above the AC meter and is used to trigger an on-site capture operation of the AC meter operating environment under the control of a wireless control command to obtain and output a corresponding wireless capture image; A band-stop filter device, connected to the wireless capture device, for performing a band-stop filter process on the received wireless capture image to obtain and output a corresponding band-stop filter image; a content enhancement device, connected to the band-stop filter device, for performing grayscale transformation enhancement processing on the received band-stop filter image to obtain and output a corresponding content-enhanced image; A sharpening operation device, connected to the content enhancement device, for performing image content sharpening processing using a Sobel operator on the received content enhancement image to obtain and output a corresponding sharpening operation image; A pointer identification mechanism, connected to the sharpening operation device, is used to identify a plurality of pointer imaging areas from the received sharpening operation image based on a standard contour pattern of the pointer of the AC meter, and output the pointer imaging area with the largest number of pixels as a valid imaging area; A parameter correction mechanism, connected to the pointer identification mechanism, for determining the area ratio of the received effective imaging area to the sharpening operation image, and calculating the size of the inter-frame coding block that is monotonically positively correlated with the area ratio based on the area ratio; A coding operation mechanism connected to the parameter correction mechanism, used to collect the size of the calculated inter-frame coding block and search the inter-frame coding block for performing an inter-frame coding operation on the wireless captured image to obtain an inter-frame coding data stream corresponding to the wireless captured image; The parameter correction mechanism is connected to the pointer identification mechanism, and is used to determine the area ratio of the received effective imaging area occupied by the sharpening operation image, and calculate the size of the inter-frame coding block monotonically positively associated with the area ratio based on the area ratio, including: the smaller the value of the area ratio, the smaller the number of pixels occupied by the calculated inter-frame coding block; Among them, the parameter correction mechanism is connected to the pointer identification mechanism, and is used to determine the area ratio of the received effective imaging area occupied by the sharpening operation image, and calculate the size of the inter-frame coding block that is monotonically positively associated with the area ratio based on the area ratio, and also includes: using a content mapping function to represent the content mapping relationship between the size of the inter-frame coding block and the area ratio that is monotonically positively associated.

2. The AC meter snapshot information dynamic management system according to claim 1, characterized in that: A parameter correction mechanism, connected to the pointer identification mechanism, is used to determine the area ratio of the received effective imaging area occupied by the sharpening operation image, and calculate the size of the inter-frame coding block monotonically positively associated with the area ratio based on the area ratio. The method further includes: in the content mapping function, the area ratio is an input parameter of the content mapping function, and the size of the inter-frame coding block monotonically positively associated with the area ratio is an output parameter of the content mapping function; The method includes: identifying a plurality of pointer imaging areas from the received sharpening operation image based on the standard contour pattern of the pointer of the AC meter, and outputting the pointer imaging area with the largest number of pixels as the effective imaging area; the standard contour pattern of the pointer of the AC meter is an imaging image of the pointer of the AC meter taken from above when it is a part and in a factory state, including only a single pointer; Among them, the parameter correction mechanism is connected to the pointer identification mechanism, and is used to determine the area ratio of the received effective imaging area occupied by the sharpening operation image, and calculate the size of the inter-frame coding block that is monotonically positively correlated with the area ratio based on the area ratio. It also includes: using a numerical simulation mode to implement testing and simulation of the operation process of the content mapping function.

3. The AC meter snapshot information dynamic management system according to claim 2, characterized in that: The system further comprises: A dust measuring mechanism, comprising a plurality of dust measuring units, for respectively measuring current surface dust concentration values ​​of the band-stop filter device, the content enhancement device, the sharpening operation device, and the wireless capture device; Among them, the dust measuring mechanism includes multiple dust measuring units, which are used to respectively measure the current surface dust concentration values ​​of the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device, including: the multiple dust measuring units respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device are multiple non-contact dust concentration sensors.

4. The AC meter snapshot information dynamic management system according to claim 3, characterized in that: The dust measuring mechanism includes multiple dust measuring units, which are used to respectively measure the current surface dust concentration values ​​of the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device. It also includes: the internal structures of multiple non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device are the same.

5. The AC meter snapshot information dynamic management system according to claim 3, characterized in that: The dust measuring mechanism includes multiple dust measuring units, which are used to respectively measure the current surface dust concentration values ​​of the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device. It also includes: multiple non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device have the same dust measurement upper limit threshold and dust measurement lower limit threshold.

6. The AC meter snapshot information dynamic management system according to claim 5, characterized in that: The dust measuring mechanism includes multiple dust measuring units, which are used to respectively measure the current surface dust concentration values ​​of the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device. It also includes: the distances between multiple non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device are equal to those of the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device.

7. The AC meter snapshot information dynamic management system according to claim 3, characterized in that: The system further comprises: The content notification device is respectively connected to multiple non-contact dust concentration sensors used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device, and is used to perform corresponding dust alarm actions based on the dust concentration measurement results of the multiple non-contact dust concentration sensors used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device.

8. The AC meter snapshot information dynamic management system according to claim 7, characterized in that: The content notification device is respectively connected to multiple non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device, and is used to perform corresponding dust alarm actions based on the dust concentration measurement results of the multiple non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device, including: the content notification device has a built-in dust receiving unit, a dust judgment unit and a notification execution unit.

9. The AC meter snapshot information dynamic management system according to claim 8, characterized in that: The content notification device is respectively connected to a plurality of non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device, and is used to perform corresponding dust alarm actions based on dust concentration measurement results of the plurality of non-contact dust concentration sensors respectively used for the band-stop filter device, the content enhancement device, the sharpening operation device and the wireless capture device. The content notification device further includes: in the content notification device, the dust receiving unit, the dust judging unit and the notification execution unit are sequentially connected; Among them, in the content notification device, the dust receiving unit, the dust judging unit and the notification execution unit are sequentially connected, including: in the content notification device, the dust receiving unit, the dust judging unit and the notification execution unit share the same serial data configuration component.

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