Visual inspection system of intelligent water meter

Abstract

The utility model discloses a visual detection system of an intelligent water meter, which comprises a water meter detection workbench, a blowing sampling device, a marking device, a first detection camera, a second detection camera, a third detection camera and a controller, a first mechanical arm is arranged between the water meter detection workbench and the air blowing device, a second mechanical arm is arranged between the air blowing device and the marking device, and a first detection camera is arranged above a detection station of the water meter detection workbench; a second detection camera is arranged above the plurality of blowing detection stations, and a third detection camera is arranged on a positioning table of the marking device; the controller is electrically connected with the first detection camera, the second detection camera, the third detection camera, the first mechanical arm, the second mechanical arm, the water meter detection workbench, the blowing sampling device and the marking device or in wireless communication signal connection with the first detection camera, the second detection camera, the third detection camera, the first mechanical arm, the second mechanical arm, the water meter detection workbench and the marking device. The device is simple in structure, and intelligent integrated operation is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of instrument and device production detection, and specifically relates to a visual detection system for an intelligent water meter. Background Art

[0002] Water is an important substance that is indispensable in people's daily lives. In order to determine the water consumption of each household, water meters are installed on the user's water inlet pipes. In order to reduce the workload of employees and improve work efficiency, existing water companies use smart water meters to remotely read the water consumption information of each household. Therefore, in order to ensure the accuracy of the smart water meter readings, the smart water meters will be tested for product qualification before leaving the factory. The existing smart water meter testing method uses an assembly line conveyor table to slowly flow the smart water meters through the conveyor belt in sequence, and test the various performances of the smart water meters to be tested one by one, such as: water meter base number, air blow inspection, etc. However, the existing detection devices have the following problems:

[0003] First, the existing smart water meters have many outer contour shapes. Currently, 13 structural shapes have been counted. Since the marking positions of different shapes are different, the existing marking method mainly uses manual adjustment to check the marking positions of water meters of different shapes, so it has not truly achieved integrated intelligence.

[0004] Second, the existing detection device uses the same conveyor belt to deliver water meters to various inspection stations. However, the detection time for reading the water meter bottom number and the air blowing inspection are different. The air blowing inspection takes longer than the water meter bottom number reading. The conveyor needs to be suspended during the air blowing inspection. The water meter bottom number inspection needs to wait until the air blowing inspection is completed before starting the inspection, etc., which reduces work efficiency. Moreover, when a fault occurs at a certain position on the same conveyor belt, it will affect the subsequent work of the stop station. Summary of the invention

[0005] The purpose of the utility model is to provide a visual detection system for an intelligent water meter in view of the deficiencies in the prior art, so as to realize integrated intelligent production and improve work efficiency.

[0006] The technical solution adopted by the purpose of the utility model is:

[0007] A visual inspection system for an intelligent water meter comprises a water meter inspection workbench, an air blowing sampling device and a marking device, and also comprises a first inspection camera, a second inspection camera, a third inspection camera and a controller. The water meter inspection workbench, the air blowing sampling device and the marking device are arranged in sequence, a first mechanical arm is arranged between the water meter inspection workbench and the air blowing sampling device, a second mechanical arm is arranged between the air blowing sampling device and the marking device, a first inspection camera is arranged above a base number inspection station of the water meter inspection workbench; a second inspection camera is arranged above the multiple air blowing inspection stations, a third inspection camera is arranged on a positioning platform of the marking device, and the controller is respectively electrically connected or wirelessly connected to the first inspection camera, the second inspection camera, the third inspection camera, the first mechanical arm, the second mechanical arm, the water meter inspection workbench, the air blowing sampling device and the marking device through wireless communication signals.

[0008] Furthermore, it also includes a fill light source, and the first detection camera, the second detection camera and the third detection camera are all provided with a fill light source.

[0009] Furthermore, it also includes a defective product collection frame, which is located on one side of the second robotic arm.

[0010] Furthermore, the water meter detection workbench is provided with a plurality of base number detection stations, the first detection camera is installed on the water meter detection workbench through a first lateral moving mechanism, and the first detection camera moves back and forth along each of the base number detection stations; the air blowing sampling device is provided with a plurality of air blowing detection stations, the number of the air blowing detection stations is greater than the number of the base number detection stations, the second detection camera is installed on the air blowing sampling device through a second lateral moving mechanism, and the second detection camera moves back and forth along each of the air blowing detection stations.

[0011] Furthermore, it includes two water meter detection workbenches, the first robotic arm is located between the two water meter detection workbenches, each water meter detection workbench is provided with two base number detection stations, and the air blowing sampling device is provided with six air blowing detection stations.

[0012] Furthermore, the marking device is provided with a rotating pallet, on which are disposed a plurality of positioning tables, each positioning table comprising a plurality of marking stations, and the third detection camera is installed on the marking device via a third lateral moving mechanism and is located directly above the marking station.

[0013] Furthermore, the marking device is a laser marking device.

[0014] The above technical solution has the following beneficial effects:

[0015] The utility model has a simple structure. By adding a first detection camera, a second detection camera, and a third detection camera, the first detection camera and the second detection camera are used to visually identify the one-dimensional code on the water meter and the digital information of the wheel and the pointer, and send them to the controller. The controller compares the various information obtained by the first detection camera and the second detection camera with the internal feedback information of the smart water meter to be detected, so as to determine whether the water meter is qualified, and send the qualified products to the marking device for marking. The third detection camera is used to obtain the coordinate information of various smart water meters and send it to the controller, so that the marking device can automatically locate and adjust the marking position, and truly realize intelligent integrated production.

[0016] By adding a supplementary light source, it is ensured that the information captured by the first, second and third cameras is clear so that the controller can make a correct judgment on whether the product is qualified or not based on the acquired information.

[0017] It also includes an unqualified product collection frame, which is located on one side of the second robotic arm, so that the contract product can be placed on the marking device through the second robotic arm, and the unqualified products can be placed in the unqualified product collection frame to directly screen out qualified and unqualified products. At the same time, the unqualified products can be collected by the unqualified product collection frame so that the screened unqualified products can be sent to subsequent processing processes in a centralized manner.

[0018] Further description is given below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of specific embodiment 1;

[0020] Figure 2 It is a structural schematic diagram of specific embodiment 2.

[0021] In the accompanying drawings, 1 is a water meter inspection workbench, 1-1 is a base number inspection station, 2 is an air blowing sampling device, 2-1 is an air blowing inspection station, 3 is a marking device, 4 is a first inspection camera, 4-1 is a strip-shaped give way groove, 5 is a second inspection camera, 6 is a third inspection camera, 7 is a first robotic arm, 8 is a second robotic arm, and 9 is an unqualified product collection frame. DETAILED DESCRIPTION

[0022] See also Figure 1As shown, a visual inspection system for a smart water meter includes a water meter inspection workbench 1, an air blowing sampling device 2, a marking device 3, a first inspection camera 4, a second inspection camera 5, a third inspection camera 6, a fill light source and a controller. The water meter inspection workbench 1, the air blowing sampling device 2 and the marking device 3 are all existing devices. The water meter inspection workbench 1, the air blowing sampling device 2 and the marking device 3 are arranged in sequence. A first mechanical arm 7 is provided between the water meter inspection workbench 1 and the air blowing sampling device 2, and a second mechanical arm 8 is provided between the air blowing sampling device 2 and the marking device 3. The first mechanical arm 7 and the second mechanical arm 8 adopt existing mechanical arms. The water meter detection workbench 1 is provided with a plurality of bottom number detection stations 1-1, and a first detection camera 4 is arranged directly above the bottom number detection station 1-1 of the water meter detection workbench 1, and the first detection camera 4 is installed on the water meter detection workbench 1 through a first lateral moving mechanism, and the first detection camera 4 moves back and forth along each of the bottom number detection stations; the air blowing sampling device 2 is provided with a plurality of air blowing detection stations 2-1, and the number of the air blowing detection stations 2-1 is greater than the number of the bottom number detection stations 1-1, and a second detection camera 5 is arranged directly above the plurality of air blowing detection stations 2-1, and the second detection camera 5 is installed on the air blowing sampling device 2 through a second lateral moving mechanism, and the second detection camera 5 moves back and forth along each of the air blowing detection stations. In this specific embodiment: two water meter detection workbench are provided, the first mechanical arm is located between the two water meter detection workbench, and each water meter detection workbench 1 is provided with two bottom number detection stations 1-1, and the air blowing sampling device 2 is provided with six air blowing detection stations 2-1, which saves the floor space of the detection system. By setting up multiple base number inspection stations and multiple air blowing inspection stations on a production inspection line, the first and second inspection cameras are used for motion inspection, which not only improves the work efficiency, but also has no impact on subsequent inspections when any of the inspection stations fails.

[0023] The third detection camera 6 is arranged on the positioning platform of the marking device 3. The marking device 3 is provided with a rotating tray. The rotating tray is provided with multiple groups of positioning platforms. Each group of positioning platforms includes multiple marking stations 3-1. The third detection camera 6 is installed on the marking device 3 through a third lateral moving mechanism and is located directly above the marking station. In this specific embodiment: the marking device 3 is a laser marking device. The rotating tray of the marking device 3 is provided with four groups of positioning platforms. Each group of positioning platforms is provided with two marking stations. The third detection camera 6 is arranged at the marking position close to the marking device. The first lateral moving mechanism, the second lateral moving mechanism and the third lateral moving mechanism all include a bracket and a driving mechanism installed on the bracket. The driving mechanism adopts a cylinder. The first detection camera, the second detection camera and the third detection camera are all installed on the piston rod of the cylinder.

[0024] The controller is provided with a communication module for wireless communication with the smart water meter to be detected, the first detection camera, the second detection camera, the third detection camera, the first mechanical arm, the second mechanical arm, the water meter detection workbench, the air blowing sampling device and the marking device. The controller is electrically connected or wirelessly connected with the first detection camera, the second detection camera, the third detection camera, the first mechanical arm, the second mechanical arm, the water meter detection workbench, the air blowing sampling device and the marking device respectively. Through the communication module, the controller communicates with the smart water meter to be detected, the first detection camera, the second detection camera, the third detection camera, the first mechanical arm, the second mechanical arm, the water meter detection workbench, the air blowing sampling device and the marking device to collect information and send control instructions. The first detection camera obtains the one-dimensional code of the smart water meter to be detected and the numbers of the roulette and the pointer, and transmits the numbers and the one-dimensional code to the controller at the same time. The controller uses an infrared photoelectric probe to read the basic data of the smart water meter to be detected. The controller compares the visual information obtained by the first detection camera with the basic data read by the infrared photoelectric probe to determine whether the two are consistent.

[0025] The second detection camera visually acquires the one-dimensional code and the numbers on the wheel and the pointer on the smart water meter to be detected, and transmits the numbers and the one-dimensional code to the controller at the same time. The controller then reads the data recorded in the water meter through the infrared of the smart water meter to be detected, and compares the visual data acquired by the second detection camera with the data read by the infrared photoelectric probe of the smart water meter to be detected to determine whether the two are consistent, and whether the data difference is consistent. If the two are consistent, the product is qualified, otherwise it is an unqualified product.

[0026] The third detection camera detects the one-dimensional code and coordinate position on the smart water meter to be detected, and returns the coordinates and the one-dimensional code to the controller at the same time. The controller feeds back the coordinate information obtained by the third detection camera to the marking device, and the marking device adjusts and determines the marking position according to the coordinates.

[0027] Possibly, the first detection camera, the second detection camera and the third detection camera are all provided with a fill light source, and the fill light source adopts an existing LED bulb. The LED bulb is arranged above the base detection station of the water meter detection workbench, above the air blowing detection station of the air sampling device, and next to the third detection camera of the marking device, and the fill light source is used to ensure that the data is clear during shooting.

[0028] The working principle of this utility model:

[0029] First: the first detection camera is controlled to move back and forth on each base number detection station on the water meter detection workbench through the first lateral moving mechanism, so as to realize the visual detection of each base number detection work and send it to the controller. The products detected by the first detection camera of the water meter detection workbench are placed in multiple air blowing detection stations of the air blowing sampling device by the first manipulator for caching, so as not to affect the detection of the water meter base number on the water meter detection workbench. When the smart water meter to be detected is in place, the air blowing sampling device controls the air blowing. After blowing a certain amount of air, the second detection camera visually recognizes the one-dimensional code and the numbers of the wheel and pointer on the smart water meter to be detected and sends them to the controller. When the first air blowing detection station is detected, the second detection camera is used to move back and forth on each air blowing detection station of the air blowing sampling device through the second lateral moving mechanism, and the second detection camera is moved to the second air blowing detection station. Finally, the controller compares the information obtained from the first and second detection cameras with the information detected inside the smart water meter to be detected, and judges and selects qualified products, thereby controlling the movement of the second manipulator. The second robotic arm sends the products that have passed the air blowing test to the marking station of the marking device, and uses the third detection camera to detect the one-dimensional code and coordinate position on the smart water meter to be inspected and send them to the controller. The controller feeds back the obtained information to the marking device, and the marking device automatically adjusts the marking position according to the obtained coordinates. Specific embodiments

[0030] See also Figure 2 As shown, the feature of this specific embodiment is that it also includes a non-conforming product collection frame 9, and the non-conforming product collection frame 8 is located on one side of the second mechanical arm 8. By placing the non-conforming product collection frame on one side of the second mechanical arm, it is convenient to place the non-conforming products screened out during the air blowing test in this collection frame for subsequent centralized processing. Other features are the same as those in specific embodiment 1, so this specific embodiment is omitted here.

Claims

1. A visual inspection system for a smart water meter, comprising a water meter inspection workbench, an air blowing sampling device and a marking device, characterized in that: It also includes a first detection camera, a second detection camera, a third detection camera and a controller. The water meter detection workbench, the air blowing sampling device and the marking device are arranged in sequence. A first robotic arm is arranged between the water meter detection workbench and the air blowing sampling device, and a second robotic arm is arranged between the air blowing sampling device and the marking device. The first detection camera is arranged above the base number detection station of the water meter detection workbench; the air blowing sampling device is provided with multiple air blowing detection stations, and a second detection camera is arranged above the multiple air blowing detection stations. A third detection camera is arranged above the positioning platform of the marking device, and the controller is electrically connected or wirelessly connected to the first detection camera, the second detection camera, the third detection camera, the first robotic arm, the second robotic arm, the water meter detection workbench, the air blowing sampling device and the marking device respectively.

2. The visual inspection system for smart water meters according to claim 1, characterized in that: It also includes a fill light source, and the first detection camera, the second detection camera and the third detection camera are all provided with a fill light source.

3. The visual inspection system for smart water meters according to claim 1, characterized in that: It also includes a defective product collection frame, which is located on one side of the second mechanical arm.

4. The visual inspection system for a smart water meter according to claim 1, 2 or 3, characterized in that: The water meter inspection workbench is provided with multiple base number inspection stations, and the first inspection camera is installed on the water meter inspection workbench through a first lateral moving mechanism; the air blowing sampling device is provided with multiple air blowing inspection stations, the number of air blowing inspection stations is greater than the number of base number inspection stations, and the second inspection camera is installed on the air blowing sampling device through a second lateral moving mechanism.

5. The visual inspection system for smart water meters according to claim 4, characterized in that: It comprises two water meter detection workbenches, the first mechanical arm is located between the two water meter detection workbenches, each water meter detection workbench is provided with two base number detection stations, and the air blowing sampling device is provided with six air blowing detection stations.

6. The visual inspection system for a smart water meter according to claim 1, characterized in that: The marking device is provided with a rotating tray, on which are disposed a plurality of positioning platforms, each positioning platform comprising a plurality of marking stations, and the third detection camera is mounted on the marking device via a third lateral moving mechanism and is located directly above the marking station.

7. The visual inspection system for a smart water meter according to claim 1 or 6, characterized in that: The marking device is a laser marking device.

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