Meter reading device and method

Abstract

The invention provides a meter reading device and method, and belongs to the field of electric power inspection. The device comprises a cleaning module, an illumination detection module, an acquisition module and a control module, wherein the control module is respectively connected with the cleaning module, the illumination detection module and the acquisition module; the illumination detection module is used for detecting illumination information of an environment where a meter to be read is located and reflection information of the surface of the meter to be read, and sending the information to the control module; the control module is used for identifying smudginess information of the surface of the meter to be read based on the illumination information and the reflection information, controlling the cleaning device to clean the surface of the meter to be read based on the smudginess information, and controlling the acquisition module to acquire the meter information of the meter to be read based on the illumination information after cleaning is completed. The method has high adaptability to dirty scenes, dark scenes and strong light scenes, and the meter reading efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of power inspection technology, and in particular to a meter reading device and method. Background Technology

[0002] On-site meter reading is a method used by power companies to accurately measure and manage users' electricity consumption in order to ensure a stable and fair power supply. Although remote meter reading technology has been developed, on-site meter reading remains important in certain situations. On-site meter reading can serve as a verification method for remote automatic meter reading data, ensuring data consistency and reliability. On-site meter reading typically involves meter readers periodically visiting users to collect information such as the meter number, reading, and location, and comparing this information with the data in the inventory list.

[0003] However, current meter reading equipment only has meter scanning function, which is applicable to a limited range of scenarios. When encountering some heavily soiled meters or meters installed and used in harsh environments, it cannot perform normal scanning and data collection, which affects the efficiency of current meter reading work. Summary of the Invention

[0004] This invention provides a meter reading device and method to address the problem that current meter reading equipment has limited applicability in a single scenario.

[0005] In a first aspect, embodiments of the present invention provide a meter reading device, including a cleaning module, a light detection module, a data acquisition module, and a control module, wherein the control module is connected to the cleaning module, the light detection module, and the data acquisition module respectively;

[0006] The illumination detection module is used to detect the illumination information of the environment where the meter to be read is located and the reflection information of the surface of the meter to be read, and send it to the control module;

[0007] The control module is used to identify the dirt information on the surface of the meter to be read based on light and reflective information. Based on the dirt information, it controls the cleaning device to clean the surface of the meter to be read. After cleaning, it controls the acquisition module to collect the meter information of the meter to be read based on light information.

[0008] In one possible implementation, the acquisition module includes a movable light shield; the illumination information includes illumination intensity at multiple locations;

[0009] The control module is specifically used for:

[0010] After cleaning, if there are locations where the light intensity is greater than the first preset threshold, adjust the position of the light shield until the light intensity at all locations is no greater than the first preset threshold, and control the acquisition module to collect the meter information of the meter to be read.

[0011] In one possible implementation, the acquisition module also includes a supplementary light with adjustable brightness and angle;

[0012] The control module is specifically used for:

[0013] After cleaning is completed, if there are no locations where the light intensity is greater than the second preset threshold, the supplementary light is turned on, and the brightness and angle of the supplementary light are adjusted until the light intensity at all locations is no greater than the first preset threshold and greater than the second preset threshold. Then, the acquisition module is controlled to collect the meter information of the meter to be read.

[0014] In one possible implementation, the dirt information includes the degree of dirtiness; the control module is specifically used for:

[0015] The reflectivity of the meter to be read is calculated based on illumination and reflection information, and the degree of dirtiness corresponding to the reflectivity of the meter to be read is determined. Based on the cleaning intensity corresponding to the degree of dirtiness, the cleaning device is controlled to clean the surface of the meter to be read.

[0016] In one possible implementation, the reflectivity of the meter to be read includes the reflectivity at multiple locations; the control module is specifically used for:

[0017] The dirty area of ​​the meter to be read is determined based on the reflectivity of each location, and the cleaning device is controlled to clean the surface of the meter to be read based on the cleaning time corresponding to the dirty area.

[0018] In one possible implementation, the illumination detection module includes a polarization sensor and a scattering sensor; the control module is specifically used for:

[0019] The type of dirt on the meter to be read is determined based on its reflectivity, refractive properties, and scattering properties. The cleaning device is then controlled to clean the surface of the meter based on the cleaning method corresponding to the type of dirt. The types of dirt include oil stains, water stains, and dust.

[0020] In one possible implementation, the control module is also used for:

[0021] Based on the reflectivity of the surface of the meter to be read after cleaning, the degree of dirtiness of the surface of the meter to be read after cleaning is determined, and cleaning is considered complete when the degree of dirtiness is lower than a third preset threshold.

[0022] In one possible implementation, the meter reading device further includes a positioning module; the control module is also used for:

[0023] The location of the meter to be read is obtained based on the positioning module.

[0024] In one possible implementation, the positioning module includes an inertial sensor; the control module is specifically used for:

[0025] Based on the inertial data of the meter reading device moving from the first meter to the second meter, the positional relationship between the first and second meters is determined; wherein the first and second meters are any two meters with the same GPS location.

[0026] In a second aspect, embodiments of the present invention provide a meter reading method, applied to a meter reading device as described in the first aspect or any possible implementation thereof, the method comprising:

[0027] The illumination detection module detects the illumination information of the environment where the meter to be read is located and the reflection information of the surface of the meter to be read, and sends it to the control module;

[0028] The control module identifies the dirt information on the surface of the meter to be read based on light and reflective information. Based on the dirt information, it controls the cleaning device to clean the surface of the meter to be read. After cleaning, it controls the acquisition module to collect the meter information of the meter to be read based on light information.

[0029] This invention provides a meter reading device and method. A light detection module identifies the ambient light conditions of the meter's environment, and the reflective information from the meter surface determines the level of dirt or grime. If necessary, a cleaning module cleans the meter surface. Then, based on the light information, appropriate parameters are used to collect meter data. The entire meter reading process is highly automated and adaptable to dirty, dark, and bright lighting conditions, improving meter reading efficiency and reducing the workload of staff. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the meter reading device provided in an embodiment of the present invention;

[0032] Figure 2 This is a flowchart illustrating the implementation of the meter reading method provided in this embodiment of the invention. Detailed Implementation

[0033] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0034] To make the objectives, technical solutions, and advantages of the present invention clearer, specific embodiments will be described below in conjunction with the accompanying drawings.

[0035] Figure 1 The present invention provides a schematic diagram of the structure of a meter reading device. The meter reading device includes a cleaning module 11, a light detection module 12, a data acquisition module 13, and a control module 14. The control module 14 is connected to the cleaning module 11, the light detection module 12, and the data acquisition module 13, respectively.

[0036] The light detection module 12 is used to detect the light information of the environment where the meter to be read is located and the reflective information of the surface of the meter to be read, and send it to the control module 14.

[0037] The control module 14 is used to identify the dirt information on the surface of the meter to be read based on the light information and the reflection information, control the cleaning device to clean the surface of the meter to be read based on the dirt information, and after the cleaning is completed, control the acquisition module 13 to collect the meter information of the meter to be read based on the light information.

[0038] In this embodiment, the illumination detection module may include multiple light sensors to detect illumination intensity from different directions. The number, type, and location distribution of the light sensors can be set according to actual conditions. Illumination information may include illumination intensity, light source angle, illumination range, etc.

[0039] During meter reading, staff need to hold the meter reading device and point the acquisition module at the surface of the meter to be read. At this time, the light transmitted to the light detection module 12 from below is the light reflected from the meter surface, and the light from other directions is ambient light. By using the ambient light information and the light information of the reflected light, the reflectivity of the meter surface can be inferred. The material of the meter surface is usually glass. The reflectivity of clean glass is quite different from that of glass with grease, water stains, and dust. Therefore, the reflectivity of the meter surface can be used to determine the degree of dirt and to take appropriate cleaning measures.

[0040] After cleaning, meter information can be collected through the acquisition module 13. The meter information can include the meter reading, meter number, and other information.

[0041] This invention identifies the lighting conditions of the meter's environment through a light detection module, determines the dirt information on the meter surface using the reflective information of the meter surface, cleans the meter surface when necessary using a cleaning module, and then collects meter information based on the light information using appropriate parameters. The entire meter reading process has a high degree of automation and is highly adaptable to dirty, dark, and bright light scenarios, which can improve meter reading efficiency and reduce the workload of staff.

[0042] In one possible implementation, the acquisition module 13 includes a movable light shield; the illumination information includes the illumination intensity at multiple locations;

[0043] Control module 14 is specifically used for:

[0044] After cleaning, if there are locations where the light intensity is greater than the first preset threshold, the position of the light shield is adjusted until the light intensity at all locations is no greater than the first preset threshold, and the acquisition module 13 is controlled to acquire the meter information of the meter to be read.

[0045] In this embodiment, the control module 14 can control the light shield to move and rotate in the up, down, left, and right directions. When there is a position where the light intensity is greater than a first preset threshold, it indicates that the environment where the meter is located is a strong light environment. Since the acquisition module 13 is usually a camera or an infrared acquisition device, directly acquiring meter information in this situation may be affected by the strong ambient light, resulting in inaccurate data. Therefore, the position of the light shield can be adjusted to block the strong ambient light, thereby improving the accuracy of the acquired data.

[0046] During the adjustment of the light shield position, the control module 14 continuously monitors the ambient light intensity. Once the acquisition conditions are met, the adjustment stops and acquisition begins.

[0047] In one possible implementation, the acquisition module 13 also includes a supplementary light with adjustable brightness and angle;

[0048] Control module 14 is specifically used for:

[0049] After cleaning is completed, if there are no locations where the light intensity is greater than the second preset threshold, the supplementary light is turned on, and the brightness and angle of the supplementary light are adjusted until the light intensity at all locations is not greater than the first preset threshold and is greater than the second preset threshold. Then, the acquisition module 13 is controlled to collect the meter information of the meter to be read.

[0050] In this embodiment, if there is no location where the light intensity is greater than the second preset threshold, it means that the environment where the meter is located is a dark environment. When the acquisition module 13 collects information through the camera, it will be difficult to collect information accurately because the environment is too dark. At this time, the ambient brightness can be increased by supplementary lighting.

[0051] To avoid excessive brightness of the supplementary light and glare on the acquisition module 13 caused by reflection of the light from the meter surface, the control module 14 needs to adjust the brightness and angle of the supplementary light. When the light intensity at all locations is not greater than the first preset threshold and is greater than the second preset threshold, the acquisition conditions are determined to be met.

[0052] In one possible implementation, the dirt information includes the degree of dirtiness; the control module 14 is specifically used for:

[0053] The reflectivity of the meter to be read is calculated based on illumination and reflection information, and the degree of dirtiness corresponding to the reflectivity of the meter to be read is determined. Based on the cleaning intensity corresponding to the degree of dirtiness, the cleaning device is controlled to clean the surface of the meter to be read.

[0054] In this embodiment, the collected reflective information can come from multiple locations. Based on the reflective information, the reflectivity of multiple locations can be calculated. The reflectivity of the meter to be read can be the minimum or the average of the reflectivity of multiple locations. The lower the reflectivity of the meter to be read, the more severe the obstruction of the meter surface by dirt, i.e., the higher the degree of dirtiness.

[0055] In this embodiment, the reflectivity of the meter to be read can be segmented, with each range corresponding to a degree of dirtiness, and the corresponding cleaning intensity can be set according to the actual situation. The cleaning intensity can be the airflow of the blowing device, the wiping force, the amount of cleaning agent used, etc.

[0056] In one possible implementation, the reflectivity of the meter to be read includes the reflectivity at multiple locations; the control module 14 is specifically used for:

[0057] The dirty area of ​​the meter to be read is determined based on the reflectivity of each location, and the cleaning device is controlled to clean the surface of the meter to be read based on the cleaning time corresponding to the dirty area.

[0058] In this embodiment, the reflectivity detected by the light detection module 12 at different positions corresponds to a position on the meter surface. It can determine whether the reflectivity at each position is lower than a fourth preset threshold. If it is lower, the meter surface corresponding to that position can be determined as a dirty area.

[0059] In this embodiment, it is not necessary to determine which area of ​​the meter surface the reflectivity at each location originates from. Instead, the level of dirtiness can be determined based on the number of dirty areas on the meter surface or the proportion of dirty areas in the total area, and the corresponding cleaning time can be set according to the actual situation. The larger the dirty area, the longer the required cleaning time.

[0060] In one possible implementation, the illumination detection module 12 includes a polarization sensor and a scattering sensor; the control module 14 is specifically used for:

[0061] The type of dirt on the meter to be read is determined based on its reflectivity, refractive properties, and scattering properties. The cleaning device is then controlled to clean the surface of the meter based on the cleaning method corresponding to the type of dirt. The types of dirt include oil stains, water stains, and dust.

[0062] In this embodiment, the types of dirt on the surface of the meter to be read may include the following:

[0063] 1. Grease Stains: Grease forms a thin film that can refract light, reduce reflectivity, and potentially polarize reflected light. Grease stains typically make glass surfaces appear blurry and reduce light transmittance.

[0064] 2. Water stains: Water stains typically form irregular patterns on the glass surface, which causes light scattering and reduces clear reflection. After the water stains dry, they may leave mineral deposits, which also affect light reflection.

[0065] 3. Dust: Dust particles scatter light, reducing the intensity and clarity of reflected light. The scattering effect of dust causes light to distribute in all directions, thus reducing direct reflection.

[0066] 4. Fingerprints: Fingerprints contain oil and dead skin cells, which can form irregular stains on glass surfaces. Fingerprints significantly alter the reflective properties of light, often causing refraction and scattering of light in localized areas.

[0067] 5. Scratches and abrasions: Scratches and abrasions on the glass surface will damage its smoothness, causing light to scatter at the scratches, thereby reducing the uniformity and intensity of reflected light.

[0068] 6. Colored stains: Certain types of stains (such as ink or other colored substances) may absorb specific wavelengths of light, which can alter the spectral composition of the reflected light.

[0069] 7. Thin film stains: Some stains may form a thin film on the glass surface, which may increase or decrease reflectivity, depending on the thickness and refractive index of the film.

[0070] 8. Fogging: In some situations, such as condensation caused by temperature changes, fogging may occur on the glass surface. Fogging forms tiny water droplets that scatter light and reduce the intensity of reflected light.

[0071] Therefore, based on the changes in reflection, refraction, and scattering characteristics caused by the aforementioned types of dirt, polarization and scattering sensors can be used to detect the light reflected from the meter surface. Based on preset judgment conditions, the specific type of dirt on the meter surface can be identified, thereby selecting an appropriate cleaning method. For example, if only dust is present, blowing can be used to remove the dust; if water stains are present, wiping can be used; and if oil stains are present, cleaning agents are needed. Cleaning methods for other types of dirt can also be set according to the actual situation.

[0072] In one possible implementation, the control module 14 is also used for:

[0073] Based on the reflectivity of the surface of the meter to be read after cleaning, the degree of dirtiness of the surface of the meter to be read after cleaning is determined, and cleaning is considered complete when the degree of dirtiness is lower than a third preset threshold.

[0074] In this embodiment, after cleaning the meter surface, the control module 14 identifies the cleaning effect based on reflectivity and compares it with a third preset threshold to determine whether the current cleaning level meets the meter reading conditions. Specifically, the cleaning can be determined to be complete when the reflectivity of the meter surface after cleaning is greater than the third preset threshold, or when the number of locations on the meter surface after cleaning with reflectivity greater than a fourth preset threshold is greater than the third preset threshold.

[0075] In one possible implementation, the meter reading device further includes a positioning module; the control module 14 is also used for:

[0076] The location of the meter to be read is obtained based on the positioning module.

[0077] In this embodiment, the positioning module can be a GPS positioning module. Using GPS positioning, the location of each meter can be recorded during on-site meter reading and compared with the inventory list to verify whether the meter locations have changed.

[0078] In one possible implementation, the positioning module includes an inertial sensor; the control module 14 is specifically used for:

[0079] Based on the inertial data of the meter reading device moving from the first meter to the second meter, the positional relationship between the first and second meters is determined; wherein the first and second meters are any two meters with the same GPS location.

[0080] In this embodiment, when meters are densely installed, multiple meters may have similar or identical GPS locations. In such cases, even minor changes in meter location may be difficult to detect using only GPS positioning information. To address this, the positional relationship between the two meters can be determined based on the inertial data of the meter reading device moving from the first meter to the second meter. This allows for verification of whether the meter's location has changed based on historical data showing the positional relationship between the two meters.

[0081] Specifically, inertial data can include acceleration and angular velocity. An accelerometer measures the acceleration of an object along three axes (x, y, z). Velocity can be derived from acceleration through integration, and position from velocity. A gyroscope measures the angular velocity of an object rotating about three axes. The change in attitude can be derived from the angular velocity through integration. Based on the initial position and known velocity, acceleration, and rotational angular velocity, the object's new position and attitude can be calculated, thus determining the positional relationship between the two instruments.

[0082] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0083] The following are method embodiments of the present invention. For details not described in detail, please refer to the corresponding device embodiments described above.

[0084] Figure 2 The flowchart illustrating the meter reading method provided in this embodiment of the invention is shown. For ease of explanation, only the parts related to this embodiment are shown, and are described in detail below:

[0085] Step 201: The light detection module detects the light information of the environment where the meter to be read is located and the reflective information of the surface of the meter to be read, and sends it to the control module.

[0086] Step 202: The control module identifies the dirt information on the surface of the meter to be read based on the light and reflective information, controls the cleaning device to clean the surface of the meter to be read based on the dirt information, and after cleaning is completed, controls the acquisition module to collect the meter information of the meter to be read based on the light information.

[0087] In one possible implementation, the acquisition module includes a movable light shield; the illumination information includes illumination intensity at multiple locations;

[0088] After cleaning is completed, the light information control and acquisition module collects the meter information of the meter to be read, including:

[0089] After cleaning, if there are locations where the light intensity is greater than the first preset threshold, adjust the position of the light shield until the light intensity at all locations is no greater than the first preset threshold, and control the acquisition module to collect the meter information of the meter to be read.

[0090] In one possible implementation, the acquisition module also includes a supplementary light with adjustable brightness and angle;

[0091] After cleaning is completed, the light information control and acquisition module collects the meter information of the meter to be read, including:

[0092] After cleaning is completed, if there are no locations where the light intensity is greater than the second preset threshold, the supplementary light is turned on, and the brightness and angle of the supplementary light are adjusted until the light intensity at all locations is no greater than the first preset threshold and greater than the second preset threshold. Then, the acquisition module is controlled to collect the meter information of the meter to be read.

[0093] In one possible implementation, the dirt information includes the degree of dirt; dirt information on the surface of the meter to be read is identified based on illumination and reflection information; and a cleaning device is controlled based on the dirt information to clean the surface of the meter to be read, including:

[0094] The reflectivity of the meter to be read is calculated based on illumination and reflection information, and the degree of dirtiness corresponding to the reflectivity of the meter to be read is determined. Based on the cleaning intensity corresponding to the degree of dirtiness, the cleaning device is controlled to clean the surface of the meter to be read.

[0095] In one possible implementation, the reflectivity of the meter to be read includes the reflectivity at multiple locations; dirt information on the surface of the meter to be read is identified based on illumination information and reflectivity information, and a cleaning device is controlled based on the dirt information to clean the surface of the meter to be read, including:

[0096] The dirty area of ​​the meter to be read is determined based on the reflectivity of each location, and the cleaning device is controlled to clean the surface of the meter to be read based on the cleaning time corresponding to the dirty area.

[0097] In one possible implementation, the light detection module includes a polarization sensor and a scattering sensor; it identifies dirt information on the surface of the meter to be read based on light and reflection information, and controls a cleaning device to clean the surface of the meter to be read based on the dirt information, including:

[0098] The type of dirt on the meter to be read is determined based on its reflectivity, refractive properties, and scattering properties. The cleaning device is then controlled to clean the surface of the meter based on the cleaning method corresponding to the type of dirt. The types of dirt include oil stains, water stains, and dust.

[0099] In one possible implementation, the method further includes:

[0100] Based on the reflectivity of the surface of the meter to be read after cleaning, the degree of dirtiness of the surface of the meter to be read after cleaning is determined, and cleaning is considered complete when the degree of dirtiness is lower than a third preset threshold.

[0101] In one possible implementation, the meter reading device further includes a positioning module; the method also includes:

[0102] The location of the meter to be read is obtained based on the positioning module.

[0103] In one possible implementation, the positioning module includes an inertial sensor; obtaining the location of the meter to be read based on the positioning module includes:

[0104] Based on the inertial data of the meter reading device moving from the first meter to the second meter, the positional relationship between the first and second meters is determined; wherein the first and second meters are any two meters with the same GPS location.

[0105] This invention identifies the lighting conditions of the meter's environment through a light detection module, determines the dirt information on the meter surface using the reflective information of the meter surface, cleans the meter surface when necessary using a cleaning module, and then collects meter information based on the light information using appropriate parameters. The entire meter reading process has a high degree of automation and is highly adaptable to dirty, dark, and bright light scenarios, which can improve meter reading efficiency and reduce the workload of staff.

[0106] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0107] Those skilled in the art will recognize that the templates, units, and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0108] If the module / unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the above embodiments of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various meter reading method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory, a random access memory, an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc.

[0109] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A meter reading device, characterized in that, It includes a cleaning module, a light detection module, a data acquisition module, and a control module, wherein the control module is connected to the cleaning module, the light detection module, and the data acquisition module respectively; The light detection module is used to detect the light information of the environment where the meter to be read is located and the reflective information of the surface of the meter to be read, and send it to the control module. The control module is used to identify dirt information on the surface of the meter to be read based on the illumination information and the reflection information, control the cleaning device to clean the surface of the meter to be read based on the dirt information, and after cleaning, control the acquisition module to acquire the meter information of the meter to be read based on the illumination information.

2. The meter reading device according to claim 1, characterized in that, The acquisition module includes a movable light shield; the illumination information includes the illumination intensity at multiple locations; The control module is specifically used for: After cleaning is completed, if there are locations where the light intensity is greater than the first preset threshold, the position of the light shield is adjusted until the light intensity at all locations is no greater than the first preset threshold, and the acquisition module is controlled to collect the meter information of the meter to be read.

3. The meter reading device according to claim 1, characterized in that, The acquisition module also includes a supplementary light whose brightness and angle are adjustable; The control module is specifically used for: After cleaning is completed, if there are no locations where the light intensity is greater than the second preset threshold, the supplementary light is turned on, and the brightness and angle of the supplementary light are adjusted until the light intensity at all locations is not greater than the first preset threshold and is greater than the second preset threshold. Then, the acquisition module is controlled to collect the meter information of the meter to be read.

4. The meter reading device according to claim 1, characterized in that, The dirt information includes the degree of dirtiness; the control module is specifically used for: The reflectivity of the meter to be read is calculated based on the illumination information and the reflectivity information, and the degree of dirtiness corresponding to the reflectivity of the meter to be read is determined. Based on the cleaning intensity corresponding to the degree of dirtiness, the cleaning device is controlled to clean the surface of the meter to be read.

5. The meter reading device according to claim 4, characterized in that, The reflectivity of the meter to be read includes the reflectivity at multiple locations; the control module is specifically used for: The dirty area of ​​the meter to be read is determined based on the reflectivity of each location, and the cleaning device is controlled to clean the surface of the meter to be read based on the cleaning time corresponding to the dirty area.

6. The meter reading device according to claim 4, characterized in that, The illumination detection module includes a polarization sensor and a scattering sensor; the control module is specifically used for: The dirt category of the meter to be read is determined based on its reflectivity, refractive properties, and scattering properties, and the cleaning device is controlled to clean the surface of the meter to be read based on the cleaning method corresponding to the dirt category; wherein, the dirt category includes oil stains, water stains, and dust.

7. The meter reading device according to claim 4, characterized in that, The control module is also used for: Based on the reflectivity of the surface of the meter to be read after cleaning, the degree of dirtiness of the surface of the meter to be read after cleaning is determined, and cleaning is considered complete when the degree of dirtiness is lower than a third preset threshold.

8. The meter reading device according to claim 1, characterized in that, The meter reading device further includes a positioning module; the control module is also used for: The location of the meter to be read is obtained based on the positioning module.

9. The meter reading device according to claim 8, characterized in that, The positioning module includes an inertial sensor; the control module is specifically used for: Based on the inertial data of the meter reading device during its movement from the first meter to the second meter, the positional relationship between the first meter and the second meter is determined; wherein the first meter and the second meter are any two meters with the same GPS location.

10. A meter reading method, characterized in that, The method, applied to the meter reading device as described in any one of claims 1 to 9, comprises: The illumination detection module detects the illumination information of the environment where the meter to be read is located and the reflectivity information of the surface of the meter to be read, and sends it to the control module; The control module identifies the dirt information on the surface of the meter to be read based on the illumination information and the reflection information, controls the cleaning device to clean the surface of the meter to be read based on the dirt information, and after cleaning is completed, controls the acquisition module to collect the meter information of the meter to be read based on the illumination information.

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