CN110969063B - Meter reading method, meter reading equipment, remote meter reading device, system and storage medium - Google Patents
Meter reading method, meter reading equipment, remote meter reading device, system and storage medium Download PDFInfo
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- CN110969063B CN110969063B CN201811157831.4A CN201811157831A CN110969063B CN 110969063 B CN110969063 B CN 110969063B CN 201811157831 A CN201811157831 A CN 201811157831A CN 110969063 B CN110969063 B CN 110969063B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/20—Scenes; Scene-specific elements in augmented reality scenes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/25—Determination of region of interest [ROI] or a volume of interest [VOI]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
- G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
- G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V2201/00—Indexing scheme relating to image or video recognition or understanding
- G06V2201/02—Recognising information on displays, dials, clocks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/30—Smart metering, e.g. specially adapted for remote reading
Abstract
The embodiment of the application discloses a meter reading method, meter reading equipment, a remote meter reading device and a system, wherein the meter reading method comprises the following steps: acquiring first image data carrying current meter readings corresponding to the meter reading; performing differential operation according to the first image data and second image data which corresponds to the instrument and carries historical instrument readings, and determining a target display area corresponding to a reading change part in the first image data; generating image increment data used for representing the change part of the current meter reading compared with the historical meter reading according to the target display area and the first image data, and sending meter reading data carrying the image increment data to a remote meter reading device. The embodiment of the application can effectively reduce the image transmission quantity, and is beneficial to saving the power consumption of meter reading equipment; in addition, the remote meter reading device only needs to perform image recognition on the image incremental data, so that the operation amount is greatly reduced, and the data recognition efficiency is improved.
Description
Technical Field
The application relates to the field of instrument data acquisition, in particular to a meter reading method, meter reading equipment, a remote meter reading device, a remote meter reading system and a storage medium.
Background
The current image meter reading products are mainly provided with two image processing schemes: and the image is integrally transmitted to a background recognition scheme and an image local recognition scheme. According to the background recognition scheme for the integral image transmission, because the picture data amount is large, a large amount of electric energy is consumed when the data is transmitted each time, more batteries are needed, and the cost of a terminal product is high. The image local recognition scheme needs a large amount of operation for image processing, and requires higher performance of a processor, so that the overall cost of a terminal product is higher. And because the images are difficult to achieve 100% recognition, an operator does not have an original picture to correct errors, and the operation effect can be affected.
Disclosure of Invention
In view of the above, the embodiments of the present application provide a meter reading method, meter reading equipment, remote meter reading device, system and storage medium, so as to solve the technical problem of high operation and maintenance costs caused by large data transmission amount and operation amount in the existing meter data identification.
The technical scheme of the embodiment of the application is realized as follows:
in a first aspect, an embodiment of the present application provides a meter reading method, which is applied to meter-side meter reading equipment, where the meter reading method includes:
acquiring first image data carrying current meter readings corresponding to the meter reading;
performing differential operation according to the first image data and second image data which corresponds to the instrument and carries historical instrument readings, and determining a target display area corresponding to a reading change part in the first image data;
generating image increment data used for representing the change part of the current meter reading compared with the historical meter reading according to the target display area and the first image data, and sending meter reading data carrying the image increment data to a remote meter reading device.
In a second aspect, an embodiment of the present application provides a meter reading method, applied to a remote meter reading device, where the meter reading method includes:
receiving meter reading data sent by meter reading equipment at the instrument side;
and carrying out image recognition according to the incremental image data used for representing the change part of the current meter reading compared with the historical meter reading in the meter reading data to obtain digital content and digital position corresponding to the change part of the current meter reading compared with the historical meter reading, and obtaining the current meter reading based on the digital content and digital position and the stored historical meter reading.
In a third aspect, an embodiment of the present application provides a meter reading apparatus, including:
the acquisition unit is used for acquiring first image data carrying current meter readings corresponding to the meter reading;
the target determining unit is used for performing differential operation according to the first image data and second image data which corresponds to the instrument and carries historical instrument readings, and determining a target display area corresponding to a reading change part in the first image data;
and the incremental image sending unit is used for generating image incremental data used for representing the change part of the current meter reading compared with the historical meter reading according to the target display area and the first image data, and sending meter reading data carrying the image incremental data to a remote meter reading device.
In a fourth aspect, an embodiment of the present application provides a remote meter reading device, including:
the receiving unit is used for receiving meter reading data sent by meter reading equipment at the instrument side;
and the first reading determining unit is used for carrying out image recognition according to the incremental image data used for representing the change part of the current meter reading compared with the historical meter reading in the meter reading data to obtain digital content and digital position corresponding to the change part of the current meter reading compared with the historical meter reading, and obtaining the current meter reading based on the digital content and digital position and the stored historical meter reading.
In a fifth aspect, an embodiment of the present application provides a remote meter reading system, including: the meter reading equipment on the instrument side is the meter reading equipment in any embodiment, and the remote meter reading device is the remote meter reading device in any embodiment.
In a sixth aspect, an embodiment of the present application provides an electronic device, including:
a memory for storing an executable program;
and the processor is used for realizing the meter reading method according to any one of the previous embodiments when executing the executable program stored in the memory.
In a seventh aspect, an embodiment of the present application provides a computer storage medium storing an executable program, where the executable program when executed by a processor implements the meter reading method according to any one of the foregoing embodiments.
According to the technical scheme, the first image data carrying the current meter reading corresponding to the meter reading is obtained, differential operation is carried out according to the first image data and the second image data carrying the historical meter reading corresponding to the meter, image increment data representing the change part of the current meter reading compared with the historical meter reading is generated, meter reading data carrying the image increment data is sent to a remote meter reading device, the image transmission quantity can be effectively reduced, and the power consumption of meter reading equipment is saved; in addition, the remote meter reading device only needs to perform image recognition on the image incremental data, compared with the traditional scheme for recognizing the whole image, the remote meter reading device greatly reduces the operation amount and is beneficial to improving the data recognition efficiency.
Drawings
FIG. 1 is a schematic flow chart of a meter reading method according to a first embodiment of the application;
FIG. 2 is a schematic flow chart of a meter reading method according to a second embodiment of the application;
FIG. 3 is a schematic diagram of a meter reading device according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a remote meter reading device according to an embodiment of the present application;
FIG. 5 is a schematic diagram of an electronic device according to an embodiment of the present application;
FIG. 6 is a schematic diagram of an image corresponding to image data synthesized in an embodiment of the present application;
FIG. 7 is a schematic image of the historical meter reading corresponding to the image data in an embodiment of the application;
fig. 8 is a schematic diagram of an image corresponding to image delta data in an embodiment of the present application.
Detailed Description
The technical scheme of the application is further elaborated below by referring to the drawings in the specification and the specific embodiments. It is to be understood that the examples provided herein are for the purpose of illustration only and are not intended to limit the application. In addition, the embodiments provided below are some of the embodiments for carrying out the present application, but not all of the embodiments for carrying out the present application, and the technical solutions described in the embodiments of the present application may be implemented in any combination without conflict.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It should be noted that, in the embodiments of the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a method or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such method or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other related elements (e.g., a step in a method or a unit in an apparatus, such as a unit may be a part of a circuit, a part of a processor, a part of a program or software, etc.) in a method or apparatus comprising the element.
Fig. 1 shows a meter reading method according to an embodiment of the present application, which is applied to meter-side meter reading equipment, and referring to fig. 1, the meter reading method includes:
step 101: acquiring first image data carrying current meter readings corresponding to the meter reading;
step 102: performing differential operation according to the first image data and second image data which corresponds to the instrument and carries historical instrument readings, and determining a target display area corresponding to a reading change part in the first image data;
step 103: generating image increment data used for representing the change part of the current meter reading compared with the historical meter reading according to the target display area and the first image data, and sending meter reading data carrying the image increment data to a remote meter reading device.
In this embodiment, the first image data may be generated by an image acquisition device disposed on the meter, where the meter reading device obtains the first image data carrying the current meter reading corresponding to the meter reading, and the meter acquires the first image data through the image acquisition device and sends the first image data to the meter reading device; or the meter reading equipment comprises an image acquisition device which is arranged close to the instrument, and the meter reading equipment acquires first image data aiming at the instrument through the image acquisition device.
In this embodiment, the second image data carrying the historical meter reading may be stored in a storage module of the meter reading device, and the step of obtaining the first image data carrying the current meter reading corresponding to the meter reading may be to obtain, according to a set period, the image data carrying the current meter reading corresponding to the current meter reading, where the second image data may correspond to the image data obtained in a previous acquisition period immediately adjacent to the current acquisition period, or may be image data obtained in any acquisition period separated from the current acquisition period by a plurality of acquisition periods.
In an embodiment, in step 102, the determining, according to the difference operation between the first image data and the second image data corresponding to the meter and carrying the historical meter reading, the target display area corresponding to the reading change portion in the first image data includes:
preprocessing the first image data to obtain gray image data;
carrying out digital frame searching on the gray image data to obtain a first setting area corresponding to a digital frame part for indicating the reading of the instrument;
and performing differential operation on the first image data and the second image data in the first set area, and determining a target display area corresponding to a reading change part in the first image data.
In an alternative embodiment, preprocessing the first image data to obtain gray-scale image data includes: and vectorizing the first image data, namely converting the picture data shot by the image acquisition device into RGB three-dimensional matrix data, converting the RGB three-dimensional matrix data into gray image data, for example, adding the numerical values of R, G, B colors in the image data, and then obtaining an average value, thereby obtaining the gray image data.
In an embodiment, the searching the gray scale image data by using the digital frame to obtain a first set area corresponding to the digital frame for indicating the reading of the instrument includes:
detecting and determining the edge of the digital frame according to the gray image data row by row and/or column by column gray values to obtain the first setting region;
and/or
And carrying out convolution edge detection on the gray image data to determine the edge of the digital frame, and obtaining the first setting region.
In an alternative embodiment, the first setting area is obtained by determining the edge of the digital frame according to line-by-line and/or column-by-column gray value detection for the gray image data by utilizing the principle that the gray value change of the object at the outline is definitely larger than the gray value change of the background and the object at the continuous place. The step of detecting and determining the edge of the digital frame according to the gray level value row by row and/or column by column to the gray level image data to obtain the first setting area may include: and carrying out differential ratio pair on the gray image data according to different black and white distribution row by row and/or column by column to obtain a digital frame edge, and then carrying out image expansion and image corrosion treatment to filter interference and determine a digital frame part so as to obtain a first set region.
In an alternative embodiment, a machine learning algorithm is used to perform contour edge detection, for example, a convolution edge detection method based on deep learning is used to determine the edge of the digital frame, so as to obtain a first set region.
In one embodiment, a first set area for indicating the reading of the instrument on the image is predetermined, and then differential operation is performed on the first image data and the second image data in the first set area, so as to determine a target display area corresponding to a reading change part in the first image data. The first setting area corresponding to the data frame is locked, and then the difference operation is carried out on the image data in the first setting area, so that the operation amount of the image data on the meter reading equipment side is reduced, and the performance requirements of hardware equipment such as a processor are reduced.
In an alternative embodiment, performing a differential operation on the first image data and the second image data in the first setting area, and determining a target display area corresponding to a reading change portion in the first image data includes: and performing differential operation on the first image data and the second image data in a coordinate area corresponding to the first set area based on the pixel value, and determining an area with the pixel value exceeding a first set threshold value as a target display area.
In an alternative embodiment, performing a differential operation on the first image data and the second image data in the first setting area, and determining a target display area corresponding to a reading change portion in the first image data includes: and carrying out differential operation on the gray image data corresponding to the first image data and the gray image data corresponding to the second image data in a coordinate area corresponding to the first set area, and determining an area with the gray value difference exceeding a second set threshold value as a target display area. And the difference operation is carried out by adopting the gray image data, so that the operation amount of meter reading equipment side is further reduced.
Optionally, in order to avoid the influence of external interference on the differential operation result, when the differential operation is performed, a filtering process for eliminating differences caused by external illumination is performed on an area where the pixel value change exceeds a first set threshold value or the gray value change exceeds a second set threshold value, so that the target display area is corrected, and the accuracy of identification is improved.
According to the method, the device and the system, the first image data carrying the current meter reading corresponding to the meter reading is obtained, differential operation is carried out according to the first image data and the second image data carrying the historical meter reading corresponding to the meter, image increment data representing the change part of the current meter reading compared with the historical meter reading is generated, meter reading data carrying the image increment data is sent to the remote meter reading device, the image transmission quantity can be effectively reduced, the power consumption of meter reading equipment is reduced, the remote meter reading device only needs to carry out image recognition on the image increment data, the operation quantity is greatly reduced compared with a traditional scheme for recognizing the whole image, and the data recognition efficiency is improved.
In an embodiment, optionally, after the sending the meter reading data carrying the image incremental data to the remote meter reading device, the method further includes:
storing the first image data, and updating the first image data into second image data corresponding to the next differential operation; or alternatively, the process may be performed,
and generating third image data corresponding to the current meter reading based on the second image data and the incremental image data, and updating the third image data into second image data corresponding to the next differential operation.
In an alternative embodiment, the meter device may store the first image data corresponding to the current meter reading each time, so as to be used as the comparison reference data of the next differential operation, that is, after each meter reading obtains the first image data, the image data of the meter reading obtained in the previous time may be used as the compared object of the differential operation with the first image data, and similarly, the remote meter reading device located remotely needs to update the image data corresponding to the historical meter reading and the historical meter reading each time, so as to obtain the current meter reading according to the incremental image data.
In an alternative embodiment, the meter device may store the first image data corresponding to the current meter reading according to the set frequency, to be used as the comparison reference data of the next differential operation, for example, one meter reading per day is used as a meter reading period, and may be set to store the first image data corresponding to the current meter reading every three days or more, and similarly, the remote meter reading device located remotely needs to update the image data corresponding to the historical meter reading and the historical meter reading according to the same set frequency, so as to obtain the current meter reading according to the incremental image data. By storing the first image data according to the set frequency and updating the image data and the historical meter reading corresponding to the historical meter reading of the remote meter reading device side, the system power consumption and the data transmission quantity can be further reduced. The first image data stored in the meter device may be second image data corresponding to the historical meter reading and third image data corresponding to the current meter reading, which are generated by combining the second image data and the incremental image data.
In an embodiment, optionally, before the differentiating operation is performed according to the first image data and the second image data corresponding to the meter and carrying the historical meter reading, the method further includes: detecting whether the meter reading is the first meter reading aiming at the current meter, and sending meter reading data carrying first image data of the current meter reading corresponding to the first meter reading to a remote meter reading device when the meter reading is determined to be the first meter reading; otherwise, executing the step of performing differential operation according to the first image data and the second image data which corresponds to the meter and carries the historical meter reading. The method adopts the existing scheme of integral transmission of image data when the meter is read for the first time, and adopts the meter reading scheme based on incremental image data in the subsequent meter reading execution process. Optionally, in order to reduce data operand, the first image data corresponding to the first meter reading is obtained by taking an image center as a reference and intercepting imaging data generated by an image acquisition device such as a camera according to a set size.
In an embodiment, optionally, before the differentiating operation is performed according to the first image data and the second image data corresponding to the meter and carrying the historical meter reading, the method further includes: detecting whether the first image data and the second image data have integral differences, and when the integral differences exist, sending meter reading data carrying first image data of current meter reading corresponding to the meter reading to a remote meter reading device; otherwise, executing the step of performing differential operation according to the first image data and the second image data which corresponds to the meter and carries the historical meter reading. In practical application, due to the influence of external environment and the like, integral difference exists between the image data of two meter readings caused by loosening and the like between the meter and an image acquisition device or meter reading equipment on the meter, so that the accuracy of the follow-up current meter reading identification based on the image incremental data can be influenced. In the embodiment, the situation is identified by detecting whether the integral difference exists between the first image data and the second image data, and when the integral difference exists between the first image data and the second image data, the scheme of transferring the incremental image data is replaced by the scheme of transferring the integral image data, so that the identification accuracy and reliability of the current meter reading are improved. The method comprises the steps of detecting whether the integral difference exists between first image data and second image data or not by adopting a mode of carrying out integral difference ratio pair on the image data of the first image data and the second image data by taking an image center as a reference, and judging whether equipment looseness occurs or not according to the fact that the difference of the image data of the area outside the digital frame part of meter reading is within a set threshold value due to the fact that the image data corresponding to different meter reading periods does not occur under the condition that equipment looseness does not occur. Optionally, in order to reduce the data operand, when the judging device loosens, the first image data corresponding to the meter reading is obtained by taking the image center as a reference and intercepting the imaging data generated by the image acquisition device such as a camera according to a set size.
Referring to fig. 2, the embodiment of the application further provides a meter reading method, which is applied to a remote meter reading device, and the meter reading method comprises the following steps:
step 201: receiving meter reading data sent by meter reading equipment at the instrument side;
step 202: and carrying out image recognition according to the incremental image data used for representing the change part of the current meter reading compared with the historical meter reading in the meter reading data to obtain digital content and digital position corresponding to the change part of the current meter reading compared with the historical meter reading, and obtaining the current meter reading based on the digital content and digital position and the stored historical meter reading.
According to the meter reading method, compared with a traditional scheme of overall image data transmission, the meter reading data sent by meter side meter reading equipment is received, so that the data transmission quantity is reduced, image recognition can be carried out according to the incremental image data, the current meter reading is obtained by combining with the historical meter reading, the operation quantity is reduced, the recognition efficiency is improved, and the recognition speed is accelerated.
In one embodiment, a convolutional neural network is used for image recognition of the image data, and the convolutional neural network is trained to obtain a digital recognition model, so that the incremental image data is subjected to image recognition, and digital content and digital positions corresponding to the change part can be obtained. Specifically, the convolutional neural network can obtain the digital position information in each digital region through training, wherein the position information comprises the upper left corner or center coordinates (x, y) of the digital and the width w and the height h of the digital region, and can also obtain the corresponding digital content in the image data. For example, in an embodiment, as shown in fig. 8, the received image corresponding to the incremental image data corresponds to the image data from one bit to one hundred bits, and the data corresponding to the incremental image data may be identified as one hundred bits: 1, ten bits: 3, bit: 1, the image of the image data of the historical meter reading saved by the remote meter reading device is shown in fig. 7, the historical meter reading is 01050, and the current meter reading is 01131. Optionally, it is determined whether the delta image data has decimal places, and if so, filtered out.
Optionally, before the image recognition is performed according to the incremental image data used for representing the change part of the current meter reading compared with the historical meter reading in the meter reading data, the method further comprises:
when the meter reading data comprise first image data of the current meter reading corresponding to the meter, performing image recognition on the first image data to obtain the current meter reading;
and when the meter reading data comprises incremental image data used for representing the change part of the current meter reading compared with the historical meter reading, executing the step of image recognition according to the incremental image data used for representing the change part of the current meter reading compared with the historical meter reading in the meter reading data.
In this embodiment, the historical meter reading stored by the remote meter reading device is the same as the historical meter reading at the meter side. The image data of the historical meter reading stored by the remote meter reading device corresponds to the second image data of the historical meter reading at the meter side.
Optionally, the meter reading method of the embodiment further includes, after obtaining the current meter reading:
and synthesizing image data corresponding to the current meter reading according to the incremental image data and the image data of the historical meter reading. The image corresponding to the synthesized image data is shown in fig. 6. The remote meter reading device displays the image corresponding to the current meter reading, so that a user can check and manually confirm whether the generated current meter reading is accurate or not at the remote meter reading device side, the defect that the remote end has no corresponding picture due to the local identification of the existing meter side is avoided, timely error correction is facilitated, and the reliability of the system is improved.
The application range of the embodiment of the application comprises, but is not limited to, meters such as electric meters, gas meters, water meters and the like.
Based on the same inventive concept, the embodiment of the application also provides a meter reading device, the inventive principle of which is similar to the meter reading method applied to the meter side meter reading device, so that the implementation of the meter reading device can be referred to the implementation of the meter reading method, and the repetition is omitted.
Fig. 3 shows a schematic structural diagram of a meter reading device according to an embodiment of the present application. Referring to fig. 3, the meter reading apparatus includes:
the acquiring unit 301 is configured to acquire first image data carrying a current meter reading corresponding to the meter reading;
a target determining unit 302, configured to perform a differential operation according to the first image data and second image data corresponding to the meter and carrying a historical meter reading, and determine a target display area corresponding to a reading change portion in the first image data;
and the incremental image sending unit 303 is configured to generate image incremental data for representing a change part of the current meter reading compared with the historical meter reading according to the target display area and the first image data, and send meter reading data carrying the image incremental data to a remote meter reading device.
In an embodiment, the targeting unit 302 comprises:
the preprocessing unit is used for preprocessing the first image data to obtain gray image data;
the digital frame searching unit is used for carrying out digital frame searching on the gray image data to obtain a first setting area corresponding to the digital frame part for indicating the reading of the instrument;
and the difference operation unit is used for carrying out difference operation on the first image data and the second image data in the first setting area and determining a target display area corresponding to the reading change part in the first image data.
Optionally, the meter reading device further comprises: a storage unit 304, configured to store the first image data, and update the first image data to second image data corresponding to a next difference operation; or generating third image data corresponding to the current meter reading based on the second image data and the incremental image data, and updating the third image data to second image data corresponding to the next differential operation. The storage unit 304 may store the first image data corresponding to the current meter reading each time, or may store the first image data corresponding to the current meter reading according to a set frequency, as comparison reference data for the next differential operation.
Optionally, the incremental image sending unit 303 is further configured to send meter reading data carrying first image data of a current meter reading corresponding to the first meter reading to the remote meter reading device when the current meter reading of the meter is the first meter reading.
Optionally, the meter reading device of this embodiment further includes: the looseness detection unit is used for detecting whether the integral difference exists between the first image data of the current meter reading corresponding to the meter reading and the second image data of the historical meter reading. The incremental image sending unit 303 is further configured to send meter reading data carrying first image data of a current meter reading corresponding to the current meter reading to the remote meter reading device when there is an overall difference.
Based on the same inventive concept, the embodiment of the application also provides a remote meter reading device, and the inventive principle of the remote meter reading device is similar to that of the meter reading method applied to the remote meter reading device, so that the embodiment of the remote meter reading device can refer to the implementation of the meter reading method, and the repetition is omitted.
Fig. 4 shows a schematic structural diagram of a remote meter reading device according to an embodiment of the application. Referring to fig. 4, the remote meter reading apparatus includes:
a receiving unit 401, configured to receive meter reading data sent by meter reading equipment on an instrument side;
the first reading determining unit 402 is configured to perform image recognition according to incremental image data in the meter reading data, where the incremental image data is used to represent a change portion of a current meter reading compared with a historical meter reading, obtain digital content and a digital position corresponding to the change portion of the current meter reading compared with the historical meter reading, and obtain the current meter reading based on the digital content and the digital position and the stored historical meter reading.
Optionally, the remote meter reading device further includes:
and the second reading determining unit 403 is configured to, when determining that the meter reading data includes first image data of a current meter reading corresponding to the meter, perform image recognition on the first image data to obtain the current meter reading.
Optionally, the remote meter reading device further includes:
and the image synthesis unit 404 is configured to synthesize image data corresponding to the current meter reading according to the incremental image data and the image data of the historical meter reading.
The remote meter reading device displays the image corresponding to the current meter reading, so that a user can check and manually confirm whether the generated current meter reading is accurate or not at the remote meter reading device side, the defect that the remote end has no corresponding picture due to the local identification of the existing meter side is avoided, timely error correction is facilitated, and the reliability of the system is improved.
The embodiment of the application also provides a remote meter reading system, which comprises: the meter reading device of the foregoing embodiment located on the meter side and the remote meter reading apparatus of the foregoing embodiment in remote communication with the meter reading device.
The embodiment of the application also provides electronic equipment which can be a monitoring mobile terminal installed on the instrument side, or a server, a remote monitoring terminal and the like positioned on the cloud side. As shown in fig. 5, the electronic device includes: at least one processor 501, memory 502, a user interface 503, and at least one network interface 504. The various components in the electronic device 500 are coupled together by a bus system 505. It is understood that bus system 505 is used to enable connected communications between these components. The bus system 505 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various buses are labeled as bus system 505 in fig. 5.
The user interface 503 may include, among other things, a display, keyboard, mouse, trackball, click wheel, keys, buttons, touch pad, or touch screen, etc.
It is to be appreciated that memory 502 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory.
The memory 502 in the embodiment of the present application is used to store various types of data to support the execution of meter reading methods. Examples of such data include: any executable program for running on the mobile device 500, such as the executable program 5021, for implementing the meter reading method of the embodiment of the present application may be included in the executable program 5021.
The meter reading method disclosed by the embodiment of the application can be applied to the processor 501 or realized by the processor 501. The processor 501 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the meter reading method may be performed by integrated logic circuitry of hardware in the processor 501 or instructions in the form of software. The processor 501 may be a general purpose processor, a digital signal processor (DSP, digital Signal Processor), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 501 may implement or perform the methods, steps and logic blocks disclosed in embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiment of the application can be directly embodied in the hardware of the decoding processor or can be implemented by combining hardware and software modules in the decoding processor. The software module may be located in a storage medium, where the storage medium is located in a memory 502, and the processor 501 reads information in the memory 502, and in combination with its hardware, performs the steps of the meter reading method provided by the embodiment of the application.
The embodiment of the application also provides a readable storage medium, which can comprise: a mobile storage device, a random access Memory (RAM, random Access Memory), a Read-Only Memory (ROM), a magnetic disk or an optical disk, or the like, which can store program codes. The readable storage medium stores an executable program; the executable program is used for realizing the meter reading method according to any embodiment of the application when being executed by the processor.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, embodiments of the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the application may take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, etc.) having computer-usable program code embodied therein.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing system to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing system, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing system to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing system to cause a series of operational steps to be performed on the computer or other programmable system to produce a computer implemented process such that the instructions which execute on the computer or other programmable system provide steps for implementing the functions specified in the flowchart block or blocks and/or block diagram block or blocks.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (13)
1. A meter reading method applied to meter side meter reading equipment, comprising the following steps:
acquiring first image data carrying current meter readings corresponding to the meter reading;
performing differential operation according to the first image data and second image data which corresponds to the instrument and carries historical instrument readings, and determining a target display area corresponding to a reading change part in the first image data;
generating image increment data used for representing the change part of the current meter reading compared with the historical meter reading according to the target display area and the first image data, and sending meter reading data carrying the image increment data to a remote meter reading device.
2. The meter reading method as set forth in claim 1, wherein the determining the target display area corresponding to the reading changing part in the first image data by performing a differential operation according to the first image data and the second image data carrying the historical meter reading corresponding to the meter includes:
preprocessing the first image data to obtain gray image data;
carrying out digital frame searching on the gray image data to obtain a first setting area corresponding to a digital frame part for indicating the reading of the instrument;
and performing differential operation on the first image data and the second image data in the first set area, and determining a target display area corresponding to a reading change part in the first image data.
3. The meter reading method as set forth in claim 2, wherein the performing a digital frame search on the gray-scale image data to obtain a first set area corresponding to a digital frame portion for indicating meter reading includes:
detecting and determining the edge of the digital frame according to the gray image data row by row and/or column by column gray values to obtain the first setting region;
and/or
And carrying out convolution edge detection on the gray image data to determine the edge of the digital frame, and obtaining the first setting region.
4. The meter reading method of claim 1, wherein after sending the meter reading data carrying the image delta data to a remote meter reading device, further comprising:
storing the first image data, and updating the first image data into second image data corresponding to the next differential operation; or alternatively, the process may be performed,
and generating third image data corresponding to the current meter reading based on the second image data and the image increment data, and updating the third image data into second image data corresponding to the next differential operation.
5. The meter reading method of claim 1, wherein before the differentiating operation is performed according to the first image data and the second image data carrying the historical meter reading corresponding to the meter, further comprising:
detecting whether the meter reading is the first meter reading aiming at the current meter, and sending meter reading data carrying first image data of the current meter reading corresponding to the first meter reading to a remote meter reading device when the meter reading is determined to be the first meter reading; otherwise, executing the step of performing differential operation according to the first image data and the second image data which corresponds to the meter and carries the historical meter reading.
6. The meter reading method of claim 1, wherein before the differentiating operation is performed according to the first image data and the second image data carrying the historical meter reading corresponding to the meter, further comprising:
detecting whether the first image data and the second image data have integral differences, and when the integral differences exist, sending meter reading data of the first image data carrying current meter reading corresponding to the meter reading to a remote meter reading device; otherwise, executing the step of performing differential operation according to the first image data and the second image data which corresponds to the meter and carries the historical meter reading.
7. A meter reading method applied to a remote meter reading device, comprising the following steps:
receiving meter reading data sent by meter reading equipment at the instrument side;
and carrying out image recognition according to the image increment data used for representing the change part of the current meter reading compared with the historical meter reading in the meter reading data to obtain digital content and digital position corresponding to the change part of the current meter reading compared with the historical meter reading, and obtaining the current meter reading based on the digital content and digital position and the stored historical meter reading.
8. The meter reading method of claim 7, wherein the image recognition based on the image delta data in the meter reading data for characterizing the change portion of the current meter reading as compared to the historical meter reading further comprises:
when the meter reading data comprise first image data of the current meter reading corresponding to the meter, performing image recognition on the first image data to obtain the current meter reading;
and when the meter reading data comprises image increment data used for representing the change part of the current meter reading compared with the historical meter reading, executing the step of image recognition according to the image increment data used for representing the change part of the current meter reading compared with the historical meter reading in the meter reading data.
9. A meter reading apparatus, comprising:
the acquisition unit is used for acquiring first image data carrying current meter readings corresponding to the meter reading;
the target determining unit is used for performing differential operation according to the first image data and second image data which corresponds to the instrument and carries historical instrument readings, and determining a target display area corresponding to a reading change part in the first image data;
and the incremental image sending unit is used for generating image incremental data used for representing the change part of the current meter reading compared with the historical meter reading according to the target display area and the first image data, and sending meter reading data carrying the image incremental data to a remote meter reading device.
10. A remote meter reading device, comprising:
the receiving unit is used for receiving meter reading data sent by meter reading equipment at the instrument side;
and the first reading determining unit is used for carrying out image recognition according to the image increment data used for representing the change part of the current meter reading compared with the historical meter reading in the meter reading data to obtain digital content and digital position corresponding to the change part of the current meter reading compared with the historical meter reading, and obtaining the current meter reading based on the digital content and digital position and the stored historical meter reading.
11. A remote meter reading system, comprising: the remote meter reading device is positioned on the meter side and is in remote communication with the meter reading device, the meter reading device is the meter reading device according to claim 9, and the remote meter reading device is the remote meter reading device according to claim 10.
12. An electronic device, comprising:
a memory for storing an executable program;
a processor for implementing a meter reading method according to any one of claims 1 to 6 or any one of claims 7 to 8 when executing an executable program stored in said memory.
13. A computer storage medium storing an executable program which, when executed by a processor, implements the meter reading method according to any one of claims 1 to 6 or any one of claims 7 to 8.
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