Telescopic intelligent water meter reading rod capable of automatically reading meter and filling card

Abstract

The invention discloses a telescopic intelligent water meter reading rod capable of automatically reading and filling a card. The telescopic intelligent water meter reading rod comprises a telescopic rod, an endoscope, a cleaning system and an automatic identification and card filling module, the interior of the telescopic rod is hollow, the endoscope is installed at the tail end of the telescopic rod through a lead, and the endoscope is provided with a power supply for providing electric energy; the cleaning system comprises an integrated end, the integrated end comprises a connecting pipe, a brush head and a brush, and the brush head is connected with the telescopic rod through the connecting pipe. According to the telescopic intelligent water meter reading rod capable of automatically reading the meter and filling the card, a mode of automatically reading the meter and filling the card in a telescopic mode is adopted to replace personnel to go down a well, and potential risks of limited space operation are reduced; the current situation that multiple persons need to read meters when a single well works in a limited space is avoided, single-person meter reading is achieved, and manpower is saved; the time for ventilation, gas detection and personnel going down and up to the well is saved; the functions of recognizing the water meter reading and automatically filling in the meter card are achieved, the card filling errors caused by manual work are reduced, the time for filling in the meter card reading is shortened, and the meter reading efficiency and accuracy are improved.

Description

Technical Field

[0001] The invention relates to the technical field of water affairs intelligent water meters, in particular to a telescopic water meter intelligent meter reading pole with automatic meter reading and card filling. Background Art

[0002] With the improvement of urbanization level, a large number of people have gathered in cities and towns, resulting in an increase in the number of households with meter reading. The meter reading work of water supply companies is heavy, and improving the efficiency of meter reading needs to be urgently addressed. In order to protect water meters from the influence of climatic conditions, some water meters will be installed in water meter wells. Especially in the northwest region, the temperature is low in winter and the water meters are easily frozen. It is common to install water meters in water meter wells. Due to the distinct four seasons in the northwest region, the temperature is low in winter and the distance from the antifreeze layer to the ground surface is long. The water meter needs to be installed below the antifreeze layer, so the water meter well chamber is deep, and the temperature is high in summer. The deep and long-term closed water meter wells are prone to breed toxic and harmful gases, and the limited space has a high risk.

[0003] The existing method of reading surface well water meters is that the meter reading team goes down the well to read the meter according to the limited space operation procedures. The reading down the well follows the limited space operation process: ventilation first, then detection, and then operation. It takes too long and consumes manpower. Affected by climatic conditions and external conditions, snow is slippery in winter, and rain increases in summer, causing water accumulation in the well chamber. A large number of old community pipelines are old, which can easily cause sewage to flow into the water meter well. This brings great inconvenience and risk to the work of reading water meters in the well. Manual reading of the meter well requires manually filling in the water meter reading into the meter card, and then uploading it to the system. A large number of reading tasks will not only cause human errors and cause water fee disputes, but also have low efficiency and difficulty in completing revenue tasks. For this reason, a water meter intelligent meter reading pole is proposed to solve the above-mentioned problems. Summary of the invention

[0004] The purpose of the present invention is to provide a telescopic intelligent meter reading pole for water meters that can automatically read meters and fill in cards, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A telescopic water meter intelligent meter reading pole for automatic meter reading and card filling, comprising a telescopic pole, an endoscope, a cleaning system and an automatic identification and card filling module; The interior of the telescopic rod is hollow, and the endoscope is installed at the end of the telescopic rod through a lead wire, and the endoscope is equipped with a power supply to provide power; The cleaning system includes an integrated end head, which includes a connecting pipe, a brush head, and a brush. The brush head is connected to the telescopic rod through the connecting pipe, the brush head is provided with a brush, a middle hole is opened inside the brush head, and the endoscope is installed in the middle hole; The automatic identification and card filling module aims the endoscope at the meter code area on the water meter. The automatic identification and card filling module system can automatically identify and record the meter code information, thereby realizing fast and accurate meter reading operations.

[0006] As a further solution of the present invention: the telescopic rod is formed by multiple pipe fittings, namely pipe fitting a, pipe fitting b, pipe fitting c...pipe fitting n, and the head ends of pipe fittings b, pipe fitting c...pipe fitting n are provided with spiral tubes threadedly connected to the outer pipe fittings. The head end diameter and the tail end diameter of pipe fittings b, pipe fitting c...pipe fitting n are different, and the tail end diameter is slightly larger than the head end diameter. The head end diameter and the tail end diameter of the internal pipe hole are also different. During the extension process, when the tail end of the pipe fitting slides to the head end of the outer pipe fitting, they will limit each other to prevent the pipe fitting structure from being disjointed.

[0007] As a further solution of the present invention: the endoscope is composed of a camera, a connecting line, a WiFi module with a lithium battery, and a mobile phone app, wherein the camera has an optical camera, a CDD sensor and an AD converter, and an LED searchlight function and components; the connecting line includes a power line and a signal line; the module includes a lithium battery and a WiFi module.

[0008] As a further solution of the present invention: the diameter of the camera is slightly smaller than the minimum diameter of the telescopic rod, the lens is covered with anti-scratch transparent glass to prevent the lens from being damaged, the connecting line passes through the inside of the telescopic rod from the rod head to the rod tail, and the WiFi module is fixed to the rod tail. In this way, it is only necessary to connect the USB interface at the end of the connecting line and the WiFi module with a lithium battery, turn on the module switch, power on the lens and receive the signal from the WiFi module, the mobile phone receives the WiFi signal of the WiFi module, and open the mobile phone app to receive the image information of the lens and control the camera to take pictures or record videos.

[0009] As a further solution of the present invention: the optical camera collects the image of the water meter dial and converts the optical image information into an electrical signal through a CCD sensor, and then converts the electrical analog signal of the dial image into a digital signal through an AD converter, which is transmitted to the WiFi module through a signal line, and the dial reading image digital signal is transmitted to the mobile phone through the WiFi signal. The mobile phone images the image digital signal through an app, and the lithium battery can power the LED lamp at the lens to supplement the light source. The mobile phone app can also control the camera to take pictures and record videos.

[0010] As a further solution of the present invention: the cleaning system also includes a pulse air blowing system, the pulse air blowing system includes an air pump and a gas cylinder, the air pump is connected to the gas cylinder through a one-way valve, the gas cylinder is connected to the telescopic rod through a valve, the air pump is the gas cylinder and generates a certain air pressure in the gas cylinder, by opening the valve, the air flow passes through the internal middle hole of the telescopic rod and is blown out from the middle hole, and the cleaning effect is achieved in cooperation with the brush head.

[0011] As a further solution of the present invention: the telescopic rod further includes a cover lifter through the integrated end, and the connecting pipe is connected to the minimum diameter pipe n of the telescopic rod through the cover lifter; The cover lifter includes a sleeve, a back-blowing pipe, a spring and a limit block. The connecting pipe can be slidably installed in the sleeve. A sliding groove is provided on the sleeve. A limit block located in the sliding groove is installed on the outside of the connecting pipe. The limit block limits the sliding and contraction distance of the connecting pipe. A back-blowing pipe is provided on the sleeve. The connecting pipe is provided with an air port. A sealing valve is provided inside the connecting pipe. A valve opening needle capable of pushing open the sealing valve is installed inside the sleeve. When the limit block is at the left end of the sliding groove, the air port coincides with the back-blowing pipe, and the sealing valve is closed.

[0012] As a further solution of the present invention: the automatic identification and card filling module adopts the KNN digital recognition algorithm and the vector space model to classify the numbers. The known samples belonging to the same category have high similarity with each other. The similarity between the reading numbers to be read and the known samples (trained digital samples) can be calculated for classification, thereby realizing digital recognition.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The telescopic water meter intelligent meter reading pole with automatic meter reading and card filling can replace personnel going down the well through the telescopic automatic meter reading and card filling method, reducing the potential risks of limited space operations; avoiding the current situation that multiple people are required to read the meter for a single well in limited space operations, and realizing single-person meter reading, saving manpower; saving ventilation, gas detection, personnel going down and coming up the well time; realizing the function of automatically filling in the meter card by identifying the water meter reading, reducing the card filling errors caused by manual work, reducing the time of filling in the meter card, and improving the efficiency and accuracy of meter reading.

[0014] 2. The telescopic water meter intelligent meter reading pole with automatic meter reading and card filling cooperates with the cleaning system and the pulse air blowing system to make the meter cover opening more convenient and the dial cleaning cleaner. It has a simple structure, a reasonable and precise design with the structure of the telescopic pole, provides great convenience, and improves the clarity of the endoscopic imaging, thereby improving the accuracy of the automatic recognition and card filling module. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a telescopic water meter intelligent meter reading pole with automatic meter reading and card filling; Figure 2 It is a structural exploded view of a telescopic water meter intelligent meter reading pole with automatic meter reading and card filling; Figure 3 It is a structural schematic diagram of an integrated terminal in a telescopic water meter intelligent meter reading pole for automatic meter reading and card filling; Figure 4 The schematic diagram of the pulse air blowing system in a telescopic water meter intelligent meter reading pole with automatic meter reading and card filling is shown.

[0016] In the figure: 1. telescopic rod; 2. spiral tube; 3. sleeve; 4. backblowing tube; 5. integrated end; 501. brush head; 502. brush; 503. middle hole; 504. camera; 505. connecting pipe; 6. mounting base; 7. air pump; 8. gas cylinder; 9. tail cover; 10. connecting line; 11. spring; 12. limit block; 13. one-way valve; 14. valve; 15. sealing valve; 16. valve opening needle. DETAILED DESCRIPTION

[0017] See also Figures 1 to 4 , In an embodiment of the present invention, a telescopic water meter intelligent meter reading pole for automatic meter reading and card filling includes a telescopic pole 1, an endoscope, a cleaning system and an automatic identification and card filling module; The telescopic rod 1 is hollow inside, and the endoscope is installed at the end of the telescopic rod 1 through a lead wire. The endoscope is equipped with a power supply to provide power. The telescopic rod 1 is extended to adapt to wellhead meter reading at different depths, and the endoscope performs imaging collection; The cleaning system includes an integrated end head 5, which includes a connecting tube 505, a brush head 501, and a brush 502. The brush head 501 is connected to the telescopic rod 1 through the connecting tube 505. The brush head 501 is provided with the brush 502. A middle hole 503 is provided inside the brush head 501. The endoscope is installed in the middle hole 503. The brush head 501 simply cleans the table code area to make the endoscope imaging collection clearer. The automatic identification and card filling module can automatically identify and record the meter code information by aiming the endoscope at the meter code area on the water meter, thereby realizing fast and accurate meter reading operations. In order to reduce the potential limited space risks of reading water meters in the well, overcome various unfavorable factors for going down to the well, reduce the number of people reading meters, shorten the meter reading time, and improve the meter reading efficiency, a telescopic smart meter reading pole for water meters with automatic meter reading and card filling can be used to replace personnel going down the well and reduce the potential risks of limited space operations; avoid the current situation where multiple people are required to read the meter in a single well in limited space operations, and realize single-person meter reading, saving manpower; saving ventilation, gas detection, and personnel going down and coming up the well time; realizing the function of automatically filling in the meter card by identifying the water meter reading, reducing the card filling errors caused by manual work, reducing the time for filling in the meter card, and improving the efficiency and accuracy of meter reading.

[0018] In a preferred embodiment, the telescopic rod 1 is formed by a plurality of pipe fittings 1a, 1b, 1c...1n, and the head ends of the pipe fittings 1b, 1c...1n are provided with a spiral tube 2 threadedly connected to the outer pipe fittings. The head end diameter of the pipe fittings 1b, 1c...1n is different from the tail end diameter, and the tail end diameter is slightly larger than the head end diameter. The head end diameter and the tail end diameter of the internal pipe hole are also different. When the tail end of the pipe fitting slides to the head end of the outer pipe fitting during the extension process, they will limit each other to prevent the pipe fitting structure from being disjointed, and the telescopic rod 1 is retracted for easy storage. To ensure that the rod head is slightly disturbed after the telescopic rod 1 is extended and has good stability in use, the material is a glassy carbon synthetic material with light weight, high strength and high toughness. The telescopic method selects a more stable axial telescopic method, and the telescopic fixing method selects uniform force. When the telescopic distance needs to be controlled at a short distance, the rotary tube 2 is rotated and locked with the threaded connection with the outer pipe fittings. The pipe fittings in this section will not participate in the telescopic process, thereby shortening the extension length and playing a role in controlling the telescopic extension. At the same time, when storing, all pipe fittings are locked to protect the equipment structure and prevent accidental extension.

[0019] In a preferred embodiment, the endoscope is composed of a camera 504, a connecting line 10, a WiFi module with a lithium battery, and a mobile phone app, wherein the camera 504 has an optical camera, a CDD sensor and an AD converter, and an LED searchlight function and components; the connecting line 10 includes a power line and a signal line; the module includes a lithium battery and a WiFi module, and a tail cover 9 is provided at the tail of the telescopic rod 1, the connecting line 10 passes through the tail cover 9, and is sealed by a sealant to reduce gas leakage.

[0020] In a preferred embodiment, the diameter of the camera 504 is slightly smaller than the minimum diameter of the telescopic rod 1, the lens is covered with anti-scratch transparent glass to prevent the lens from being damaged, the connecting line 10 passes through the inside of the telescopic rod from the rod head to the rod tail, and the WiFi module is fixed at the rod tail. In this way, it is only necessary to connect the USB interface at the end of the connecting line 10 and the WiFi module with a lithium battery, turn on the module switch, power on the lens and receive the signal from the WiFi module, the mobile phone receives the WiFi signal of the WiFi module, and open the mobile phone app to receive the image information of the lens and control the camera to take pictures or record videos.

[0021] In a preferred embodiment, an optical camera collects the image of the water meter dial and converts the optical image information into an electrical signal through a CCD sensor. The electrical analog signal of the dial image is then converted into a digital signal through an AD converter and transmitted to a WiFi module through a signal line. The dial reading image digital signal is transmitted to a mobile phone through a WiFi signal. The mobile phone images the image digital signal through an app. The lithium battery can power the LED light at the lens to supplement the light source. The mobile phone app can also control the camera to take photos and record videos.

[0022] In a preferred embodiment, the cleaning system also includes a pulse air blowing system, which includes an air pump 7 and a gas cylinder 8. The air pump 7 is connected to the gas cylinder 8 through a one-way valve 13, and the gas cylinder 8 is connected to the telescopic rod 1 through a valve 14. The air pump 7 is the gas cylinder 8 and generates a certain air pressure in the gas cylinder 8. By opening the valve 14, the air flow passes through the internal middle hole of the telescopic rod 1 and is blown out from the middle hole 503, and the cleaning effect is achieved in conjunction with the brush head 501. In order to maintain an effective dust blowing efficiency, the air pump 7 is used to inflate the gas cylinder 8 to maintain the gas cylinder 8 having a certain air pressure. The air pressure is at least 0.7MPa, and the air pressure blows out the dirt and dust peeled off by the brush 502 through the middle hole 503, thereby improving the cleaning strength of the table code area, making the endoscope image clear, and reducing the reading errors of the automatic recognition and card filling module. The connection method of the telescopic rods 1 that are mutually sleeved forms a good airtight effect when the tail of the pipe is in contact with the head of the outer pipe, which can provide good airtightness. At the same time, when there is a certain air pressure in the telescopic rod 1, the adjustment length of the threaded connection will not cause the telescopic rod 1 to stretch due to the air pressure, and the good structure of the telescopic rod 1 can be maintained.

[0023] In a preferred embodiment, the telescopic rod 1 further includes a cover lifter through the integrated end 5, and the connecting pipe 505 is connected to the minimum diameter pipe 1n of the telescopic rod 1 through the cover lifter; The cover lifter includes a sleeve 3, a blowback pipe 4, a spring 11 and a limit block 12. The connecting pipe 505 is slidably installed in the sleeve 3. A slide groove is provided on the sleeve 3. A limit block 12 located in the slide groove is installed on the outer side of the connecting pipe 505. The limit block 12 limits the sliding and contraction distance of the connecting pipe 505. The blowback pipe 4 is provided on the sleeve 3. The connecting pipe 505 is provided with an air port. A sealing valve 15 is provided inside the connecting pipe 505. A valve opening needle 16 capable of pushing open the sealing valve 15 is installed inside the sleeve 3. When 12 is at the left end of the slide, the air port overlaps with the back-blowing pipe 4, the sealing valve 15 is closed, and when the integrated end 5 is not subjected to force, the connecting pipe 505 is pushed to extend outward under the action of the spring 11, and the air port and the back-blowing pipe 4 are in a state of mutual communication. The air pump 7 inflates the gas cylinder 8 to make the gas cylinder 8 have a certain air pressure. When the air pressure reaches greater than 0.7MPa, the air pump 7 stops working, the one-way valve 13 seals the air pressure circuit, and the back-blowing pipe 4 is extended to the bottom of the water meter cover. The valve 14 is opened, and the air pressure is released. The telescopic rod 1 is used to blow out from the back-blowing pipe 4, and the water meter cover is blown up to open it, which is simple and convenient. Compared with using other accessories to open it, it can be more effective and quick, and the operation is easier. After the water meter cover is blown up, the valve 14 can be closed, and the brush head 501 of the integrated end head 5 is operated to clean the meter dial by operating the telescopic rod 1. When the integrated end head 5 is against the dial, the spring 11 is compressed, and the sealing valve 15 moves toward the valve opening needle 16, and the valve opening needle 16 pushes the sealing valve 15 open. The structure of the sealing valve 15 It includes a sphere and a spring. The spring pushes the sphere to seal. Under the action of the valve opening needle 16, the internal spring of the sphere compressor is pushed open. The air flow is output outward through the outer gap of the sphere. The air port is misaligned with the backblowing pipe 4, and the air flow cannot be output through the backblowing pipe 4. At the same time, the valve 14 can be opened to clean the dust on the dial for thorough cleaning. In the case of airflow blowing, the brush head 501 can be dipped in water or smeared with cleaning liquid to help cleaning. The water stains are blown out by airflow blowing, and the dial is air-dried to keep the dial dry and improve the imaging clarity.

[0024] In a preferred embodiment, the automatic identification and card filling module adopts the KNN digital recognition algorithm and the vector space model to classify the numbers. Among the known samples belonging to the same category, the similarity between each other is high. The similarity between the reading number to be read and the known samples (trained digital samples) can be calculated to classify, thereby realizing digital recognition, that is, calculating the classification statistics of the k trained digital samples with the nearest neighbors to the number to be read to identify the number to be read. If most of the k nearest neighbor trained digital samples of the number to be read in the feature space belong to a certain category, the number to be read also belongs to this category, thereby classifying the number to be read and realizing recognition.

[0025] KNN nearest neighbor algorithm idea: 1) Calculate the distance between the unknown sample data and each known training sample data; 2) Sort all training sample data from near to far according to the distance calculated in the previous step; 3) Select the k nearest training samples, that is, get the nearest neighbor samples, and count the categories to which these nearest neighbor samples belong; 4) The category with the highest probability of appearing in the nearest neighbor sample is used as the predicted category of the location sample; 5) Get the prediction results for unknown samples.

[0026] 3. Process steps: In the KNN nearest neighbor algorithm, the selection of k value is crucial and will affect the correctness of the final prediction result. If the k value is small, the noise impact will be particularly large. If the k value is large, the category gap between different numbers will become smaller, which will affect the accuracy of the recognition result. The KNN nearest neighbor algorithm is used for digital recognition, and the k value is 5.

[0027] Build an OpenCV environment, use the KNN nearest neighbor algorithm that has been packaged in the environment for training, create a training data set, enter 20,000 10 numbers from 0 to 9 in 20 common fonts such as TimeNews, Bold, Song, Fangsong, and Kai in a word document, with an average of 2,000 numbers per number, and 100 numbers per font. Take screenshots, segment, and label to create a training data set. Use the KNN nearest neighbor algorithm to train a digital classifier, and use 10 numbers per font, a total of 2,000 numbers, as a test set for classifier testing. Compare the test results with the labels to calculate the accuracy. The test result accuracy is 98.7%.

[0028] Before feeding the water meter dial image into the classifier, the image needs to be preprocessed for digital segmentation and image resizing. First, use Gaussian blur to smooth the image and reduce noise. Then use global threshold segmentation and canny edge detection. After outputting the image, use equal interval sampling and bicubic interpolation to resize the segmented image. Resize it to a size of 40*40 and input it into the classifier for classification to complete digital recognition. Post-processing detects the RGB value of the water meter image. If it is close to black, the water meter reading is an integer. If the RGB value is close to red, it is a number. The recognition result value is divided by 10 to the power of the number of red.

[0029] It should be noted that the above embodiments all belong to the same inventive concept, and the description of each embodiment has its own focus. For matters that are not described in detail in some embodiments, reference may be made to the description in other embodiments.

[0030] The above-mentioned embodiments only express the implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A telescopic water meter intelligent meter reading pole with automatic meter reading and card filling, characterized in that: It comprises a telescopic rod (1), an endoscope, a cleaning system and an automatic identification and card filling module; The interior of the telescopic rod (1) is hollow, and the endoscope is mounted on the end of the telescopic rod (1) via a lead wire, and the endoscope is equipped with a power supply to provide electrical energy; The cleaning system comprises an integrated end head (5), the integrated end head (5) comprising a connecting tube (505), a brush head (501), and a brush (502), the brush head (501) being connected to the telescopic rod (1) via the connecting tube (505), the brush head (501) being provided with the brush (502), a middle hole (503) being provided inside the brush head (501), and an endoscope being installed in the middle hole (503); The automatic identification and card filling module aims the endoscope at the meter code area on the water meter. The automatic identification and card filling module system can automatically identify and record the meter code information, thereby realizing fast and accurate meter reading operations.

2. A telescopic water meter intelligent meter reading pole with automatic meter reading and card filling according to claim 1, characterized in that: The telescopic rod (1) is formed by sleeve-jointing a plurality of pipe fittings, namely pipe fittings 1a, pipe fittings 1b, pipe fittings 1c ... pipe fittings 1n. The head ends of pipe fittings 1b, pipe fittings 1c ... pipe fittings 1n are provided with spiral tubes (2) threadedly connected to the outer pipe fittings. The head end diameter and tail end diameter of pipe fittings 1b, pipe fittings 1c ... pipe fittings 1n are different, and the tail end diameter is slightly larger than the head end diameter. The head end diameter and tail end diameter of the internal pipe hole are also different. When the tail end of the pipe fitting slides to the head end of the outer pipe fitting during the extension process, they are mutually limited to prevent the pipe fitting structure from being disjointed.

3. A telescopic water meter intelligent meter reading pole with automatic meter reading and card filling according to claim 1, characterized in that: The endoscope is composed of a camera (504), a connecting line (10), a WiFi module with a lithium battery, and a mobile phone app, wherein the camera (504) has an optical camera, a CDD sensor and an AD converter, and an LED searchlight function and components; the connecting line (10) includes a power line and a signal line; and the module includes a lithium battery and a WiFi module.

4. A telescopic water meter intelligent meter reading pole with automatic meter reading and card filling according to claim 3, characterized in that: The diameter of the camera (504) is slightly smaller than the minimum diameter of the telescopic rod (1), the lens is covered with anti-scratch transparent glass to prevent the lens from being damaged, the connecting wire (10) passes through the inside of the telescopic rod from the rod head to the rod tail, and the WiFi module is fixed to the rod tail. In this way, it is only necessary to connect the USB interface at the end of the connecting wire (10) and the WiFi module with a lithium battery, turn on the module switch, power on the lens and receive signals from the WiFi module, and the mobile phone receives the WiFi signal from the WiFi module. The mobile phone app can be opened to receive the image information of the lens and control the camera to take photos or record videos.

5. The telescopic water meter intelligent meter reading pole with automatic meter reading and card filling according to claim 3 is characterized in that: The optical camera collects the image of the water meter dial and converts the optical image information into an electrical signal through a CCD sensor, and then converts the electrical analog signal of the dial image into a digital signal through an AD converter, which is transmitted to a WiFi module through a signal line. The dial reading image digital signal is transmitted to a mobile phone through a WiFi signal, and the mobile phone images the image digital signal through an app. The lithium battery can power the LED light at the lens to supplement the light source, and the mobile phone app can also control the camera to take pictures and record videos.

6. A telescopic water meter intelligent meter reading pole with automatic meter reading and card filling according to claim 1, characterized in that: The cleaning system further comprises a pulse air blowing system, the pulse air blowing system comprising an air pump (7) and an air cylinder (8), the air pump (7) being connected to the air cylinder (8) via a one-way valve (13), the air cylinder (8) being connected to the telescopic rod (1) via a valve (14), the air pump (7) being the air cylinder (8) and generating a certain air pressure in the air cylinder (8), and by opening the valve (14), the air flow passes through the inner middle hole of the telescopic rod (1) and is blown out from the middle hole (503), thereby achieving a cleaning effect in cooperation with the brush head (501).

7. A telescopic water meter intelligent meter reading pole with automatic meter reading and card filling according to claim 6, characterized in that: The telescopic rod (1) further comprises a cover lifter via the integrated end head (5), and the connecting pipe (505) is connected to the minimum diameter pipe 1n of the telescopic rod (1) via the cover lifter; The cover lifter comprises a sleeve (3), a back-blowing pipe (4), a spring (11) and a limit block (12); the connecting pipe (505) is slidably installed in the sleeve (3); a sliding groove is provided on the sleeve (3); a limit block (12) located in the sliding groove is installed on the outer side of the connecting pipe (505); the limit block (12) limits the sliding and contraction distance of the connecting pipe (505); the back-blowing pipe (4) is provided on the sleeve (3); an air port is provided on the connecting pipe (505); a sealing valve (15) with a one-way valve structure is provided inside the connecting pipe (505); a valve opening needle (16) capable of pushing open the sealing valve (15) is installed inside the sleeve (3); when the limit block (12) is at the left end of the sliding groove, the air port overlaps with the back-blowing pipe (4), and the sealing valve (15) is closed.

8. The telescopic water meter intelligent meter reading pole with automatic meter reading and card filling according to claim 1 is characterized in that: The automatic identification and card filling module adopts the KNN digital recognition algorithm and the vector space model to classify the numbers. The known samples belonging to the same category have high similarity with each other. The similarity between the reading number to be read and the known samples (trained digital samples) can be calculated for classification, thereby realizing digital recognition.

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