CN212206438U - Dynamometer dynamometer measurement equipment and system based on visual recognition technology - Google Patents

Abstract

The utility model discloses a dynamometer power map measuring device based on visual recognition technology, which comprises a dynamometer body and an image processing device, and the dynamometer body further comprises a strain body and a data display board, and the strain body is provided with pressure Load sensor, control unit and rechargeable battery, the data display panel includes a solar panel, the solar panel as a substrate is provided with a frame and an LED dot matrix, the LED dot matrix is used to display the pressure load value, and the image processing equipment includes an image collector And the image processor, the image collector is used to obtain the image information of the data display panel at different positions during the whole stroke of the pumping unit. The image processor obtains the pressure load value and the actual displacement value of the data display panel according to the image information. The dynamometer The power map measurement system includes the above-mentioned dynamometer power map measurement device and a host device. By using the power map measurement device, the accuracy of data measurement is improved and the power consumption of a single device is reduced.

Description

Dynamometer dynamometer measurement equipment and system based on visual recognition technology

technical field

The utility model relates to a dynamometer power map measuring device and system based on the visual recognition technology.

Background technique

The dynamometer system is an instrument and equipment used to test the load and stroke of the oil well pumping unit and calculate the dynamometer diagram representing the working condition of the pumping unit.

The existing dynamometer system is generally composed of an acceleration sensor, a pressure load sensor, an acquisition and amplification module, a core processing module, a wireless communication unit and an external host device. After the command of the dynamometer diagram of the oil machine for one cycle, it is transmitted to the core processing module. The core processing module controls the acceleration sensor and the pressure load sensor to measure a cycle (the cycle is calculated according to the motor speed of the oil pumping unit), and the output of the two The analog signal is processed by the acquisition and amplification module and then transmitted to the core processing module. During the measurement of the whole cycle, the core processing module will save a load and acceleration data set of no less than 200 points, and then obtain the initial value according to the two integrals of the acceleration value. The displacement value of each save point needs to be corrected to the correct displacement value of each save point through the pumping unit cam curve, lever arm ratio and other values, and finally sent to the external host device through the wireless communication unit. Although the existing dynamometer measuring equipment can measure the pressure load value and displacement value required for drawing the dynamometer diagram, it also has certain shortcomings: (1) The displacement value is determined by the acceleration value, and it needs to pass the acceleration value twice. Therefore, in the actual operation process, due to the complexity and delay of the calculation, there may be problems that the calculated displacement value is inaccurate or the pressure load value and the displacement value cannot accurately correspond; (2) Acceleration sensor and pressure load are required. The sensors work at the same time, which leads to the problem of high power consumption when the dynamometer is actually used. Based on the analysis of the above problems, the present application provides a dynamometer power diagram measurement device and system based on visual recognition technology.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a dynamometer power map measuring device and a dynamometer power map measurement system based on visual recognition technology, so as to solve the problems of high power consumption and low data measurement precision and accuracy in the existing dynamometer system .

The utility model provides a dynamometer power map measuring device based on visual recognition technology, comprising a dynamometer body (1) and an image processing device,

The dynamometer body (1) includes a strain body (11) and a data display panel (12), the strain body (11) includes a stainless steel base and an intermediate cavity, and a load sensor (13) is arranged in the stainless steel base , a control unit (14) and a rechargeable battery (15) are arranged in the intermediate cavity, the control unit (14) includes a controller and an LED light dimmer; the data display panel (12) includes a solar panel ( 121), the solar cell panel (121) is provided with a frame (122) and an LED dot matrix (123), the frame (122) is arranged on the outer periphery of the solar cell panel (121), and the frame (122) is illuminated by components or reflective components, the LED dot matrix (123) is arranged on the front side of the solar cell panel (121), and the LED dot matrix (123) is used to display the pressure load value collected by the load sensor (13) ; The I/O ports of the controller are respectively connected with a solar panel (121), a load sensor (13), an LED dot matrix (123) and an LED dimmer; the controller is based on the solar panel (121) The output voltage controls the LED light dimmer to adjust the brightness and/or color of each LED light in the LED dot matrix (123); the solar panel (121) is connected to the rechargeable battery (15) through the solar controller (16) and provide power for the control unit (14), the load sensor (13) and the LED dot matrix (123) through the rechargeable battery (15);

The image processing device comprises an image acquisition device (4) and an image processor (5), at least the image acquisition device (4) is fixed on one side of the dynamometer body (1), and the image acquisition device The viewing angle of (4) can collect the maximum displacement of the movement of the dynamometer body (1). and transmit the acquired image information to the image processor (5); the image processor (5) respectively acquires the pressure load value in the image information and the actual displacement value corresponding to the data display panel (12), and according to the pressure load value and the actual displacement value to sort out the power map data.

As a preferred solution of the present application, the image processor (5) includes a fault identification unit, an image definition identification unit and a communication module, the fault identification unit communicates with the remote upper device through the communication module, and the image is clear The degree recognition unit communicates with the controller on the dynamometer body (1) through the communication module, and the fault recognition unit sends alarm information to the remote upper device when it judges that the image information collected by the image collector (4) is abnormal , the image definition recognition unit sends an enable signal to the controller through the communication module when it judges that the image acquired by the image collector (4) is of low definition, and the controller passes the LED light dimmer according to the enable signal. Adjust the brightness and/or color of each LED light in the LED dot matrix (123).

As a preferred solution of the present application, the image processor (5) includes a pre-storage unit, a pixel counting unit and a calculation unit, and the pre-storage unit pre-stores the actual width D of at least one side of the data display panel (12) and the selected The predetermined reference image; the pixel counting unit superimposes the current image obtained by the image collector (4) and the reference image, and calculates the relative displacement Δd of the data display panel (12) in the two images and the data display according to the pixel points. The width d of the side of the panel (12) corresponding to one of the pre-stored sides in the image; the calculation unit calculates the actual displacement ΔD of the data display panel (12) according to the corresponding relationship, this ΔD=(D×Δd)/d .

As a preferred solution of the present application, when the frame (122) is formed of a reflective component, an obtuse angle β is formed between the inner side of the frame (122) and the solar cell panel (121);

When the frame (122) is composed of light-emitting components, the frame (122) is communicated with the rechargeable battery (15) through wires.

As a preferred solution of the present application, there is a fixed distance between two adjacent LED lights and each LED light in the LED dot matrix (123) and the frame, and the fixed distance satisfies that the image collector (4) can distinguish when it is at its installation position Calculate the distance between two adjacent LED lights and each LED light and the upper, lower, left and right borders.

The present application also provides a dynamometer power map measurement system based on visual recognition technology, including the above-mentioned power map measurement device and a host device, wherein the power map measurement device uploads the sorted power map data to the host device , the upper equipment receives the power map data and performs a correlation analysis according to the power map data to judge the working condition of the oil well.

Since it has become a trend in the future to set up image collectors 4 such as cameras next to each oil well to monitor oil leakage and other problems in oil wells, the application uses this trend to design a dynamometer dynamometer diagram measurement based on visual recognition technology equipment, the advantages of this dynamometer measurement equipment include:

(1) The load sensor 13 on the dynamometer body 1 measures the pressure load signal and displays the pressure load signal on the data display panel 12 after being processed by the controller. The image collector 4 acquires the image information of the data display panel 12 and transmits it to The image processor 5, the image processor 5 respectively obtains the pressure load value and the actual displacement value corresponding to the data display panel 12 according to the image information, and sorts out the power map data according to the pressure load value and the actual displacement value, that is, in this application, The measurement of the displacement value and the measurement of the pressure load value are collected by different acquisition units, so that the data processing efficiency can be improved and the power consumption of a single acquisition unit can be reduced. Compared with the existing multi-integration of acceleration values, this calculation method has the advantages of faster operation speed and higher accuracy; because the dynamometer body only outputs the pressure load value, the actual displacement change is calculated through a series of Image (photo) recording, so not only the operation speed is fast, but also the delay is extremely small, which ensures that the multiple sets of pressure load values collected in one cycle can be in one-to-one correspondence with the corresponding actual displacement values.

(2) Use the performance that the stronger the light received by the solar panel 121, the higher the output power will be to determine the current intensity of the light received by the solar panel 121. When the controller detects that the output voltage of the solar panel 121 increases, the LED will The lamp dimmer adjusts the brightness and/or color of each LED lamp in the LED dot matrix 123 , thereby enhancing the clarity of the LED dot matrix displayed on the solar panel 121 , and ensuring the data display in the image information collected by the image collector 4 The pressure load value displayed on the plate 12 is clearly visible for easy identification by the image processor 5 .

(3) The data display panel 12 is provided with a frame 122 composed of light-emitting components or reflective components. At night, the lighted frame 122 can make the overall structure of the data display panel 12 clearer and avoid position errors during visual recognition. Therefore, in the present application, the frame 122 is arranged on the data display panel 12 to increase the accuracy and clarity of the image information collected by the image collector 4 , thereby improving the accuracy of obtaining the pressure load value and the actual displacement value.

Description of drawings

FIG. 1 is a schematic front view of the structure of a power map measuring device provided in Embodiment 1 of the present invention.

FIG. 2 is a schematic structural diagram of a dynamometer body according to Embodiment 1 of the present invention.

FIG. 3 is a schematic diagram of a front view structure of a data display panel provided by Embodiment 1 of the present invention.

FIG. 4 is a schematic structural diagram in the direction of A-A in FIG. 3 according to Embodiment 1 of the present invention.

FIG. 5 is a control structure diagram of a dynamometer body according to Embodiment 1 of the present invention.

FIG. 6 is a schematic diagram of the actual displacement calculation of the data display panel provided by the first embodiment of the present invention.

FIG. 7 is a structural diagram of the connection between the image processor, the upper device and the controller according to the third embodiment of the present invention.

FIG. 8 is a structural diagram between an image processing device and a host device according to Embodiment 4 of the present invention.

reference number

Dynamometer body 1, strain body 11, data display panel 12, solar panel 121, frame 122, LED dot matrix 123, wire strip 124, load sensor 13, control unit 14, rechargeable battery 15, solar controller 16, donkey Head 2, polished rod 3, image collector 4, image processor 5.

Detailed ways

Example 1

This embodiment provides a dynamometer power map measurement device based on visual recognition technology, see FIG. 1 , the power map measurement device includes a dynamometer notebook and an image processing device,

In this embodiment, the dynamometer body 1 includes a strain body 11 and a data display panel 12. Referring to FIG. 2, the strain body 11 includes a stainless steel base and an intermediate cavity. The stainless steel base is provided with a load sensor 13, and the intermediate cavity is provided with a control Unit 14 and rechargeable battery 15, the control unit 14 includes a controller and an LED light dimmer; the data display panel 12 includes a solar panel 121, see Figures 3-4, the solar panel 121 is provided with a frame 122 and an LED dot matrix 123. In this embodiment, the frame 122 is arranged on the outer periphery of the solar cell panel 121, and the frame 122 is composed of a reflective component. In this embodiment, the reflective component is preferably a reflective sheet, and the main function of the frame 122 is to be clearly visible at night. For the outline structure of the data display panel 12, in this embodiment, it is preferable to form an obtuse angle β between the reflective sheet located on the inner side of the frame 122 and the solar cell panel 121, preferably β is 135°. The angled reflective sheet can use the light of the LED dot matrix 123 as a light source to make the frame 122 reflect light and brighten, thereby making the outer periphery of the data display panel 12 appear. The reflective component can use visible light as an energy source or the light of the LED lattice 123 as an energy source; the LED lattice 123 is arranged on the front of the solar cell panel 121, and the LED lattice 123 is used to display the pressure load value collected by the load sensor 13, In this embodiment, in order to save the number of LED lamps used and reduce power consumption, it is preferable that the LED dot matrix 123 is arranged on the front of the solar cell panel 121 in eight positions, and the LED dot matrix 123 displays the data collected by the load sensor 13 in binary format. Of course, if the size of the data display panel 12 allows, the LED dot matrix can also be arranged in more than eight digits, so that the display accuracy of the pressure load value can be higher. At the same time, the data display panel 12 can also be displayed in the form of decimal. The data collected by the load sensor 13, in this embodiment, the LED dot matrix 123 is composed of a plurality of independent LED lamp beads, the plurality of LED lamp beads are pasted on the solar panel 121, and the plurality of LED lamp beads are connected in parallel and then pass through wires The strip 124 is connected to the controller. Of course, LED strips can also be used to form the LED dot matrix 123; in this embodiment, the color of the LED light is preferably at least one of red and yellow with better penetrating power. The lights are clearly identifiable even in low-visibility environments such as fog or rain.

The I/O ports of the controller are respectively connected with the solar panel 121, the load sensor 13, the LED dot matrix 123 and the LED light dimmer. In this embodiment, the stronger the light received by the solar panel 121, the higher the output power is used. To judge the current intensity of the light received by the solar panel 121, when the controller detects that the output voltage of the solar panel 121 increases, it indicates that the solar panel 121 receives strong light at this time, and the controller controls the LED light dimmer to adjust the LED The brightness and color of each LED lamp in the dot matrix 123, so that the brightness and color of the LED lamp can be clearly identified under the current strong light, the solar panel 121 is connected with the rechargeable battery 15 through the solar controller 16 and through the rechargeable battery 15 provides power for the control unit 14, the load sensor 13 and the LED dot matrix 123, see FIG. 5 .

The image processing device includes an image collector 4 and an image processor 5. The image processor 5 is in electrical communication with the image collector 4 and is used for processing image information collected by the image collector 4. At least the image collector 4 is fixed on the dynamometer. One side of the main body 1, and the viewing angle of the image collector 4 can collect the maximum displacement of the movement of the dynamometer body 1. In this embodiment, the relationship between the viewing angle θ of the image collector 4 and the maximum displacement H is as follows: : H≤2*L*tanθ, where L is the shortest distance between the image collector 4 and the polished rod 3, that is, in this embodiment, when the dynamometer body 1 moves to any position of the maximum displacement, the image collector 4 There is still sufficient resolution to identify adjacent LEDs on the data display panel 12 and the distance between each LED and the frame.

The image collector 4 is used to acquire the image information of the different positions of the data display panel 12 within the maximum displacement in real time (only the image information of the dynamometer moving for one cycle can be acquired as required), and transmit the acquired image information to the image processor 5. In this embodiment, the image information includes the pressure load value displayed on the data display panel 12 . In order to ensure the clear display of the pressure load value in the collected image information, in this embodiment, it is preferable that the LED lamp bead be separated from the frame 122 of the data display panel 12 . There is a fixed distance, and at the same time, there is also a fixed distance between two adjacent LED lamp beads. In this embodiment, the fixed distance needs to meet the requirement that the image collector 4 can distinguish two adjacent LED lamps and each LED lamp when it is located at its installation position. The distance between the upper, lower, left and right borders is affected by the size of the display board 12, the actual installation position of the image collector 4 and the distance between the two adjacent LED lights and each LED light and the border. Therefore, the above-mentioned fixed distance is not specifically limited in this embodiment, and is set according to the actual situation in actual use; in this embodiment, the image collector 4 is preferably an existing common Digital camera; the image processor 5 respectively obtains the pressure load value in the image information and the actual displacement value corresponding to the data display panel 12 and organizes them into power map data. In this embodiment, the image processor 5 can directly obtain in the image The pressure load value in binary form is used. At the same time, the image processor 5 superimposes the currently acquired image and the reference image. The superposition of the two images can quickly obtain the displacement difference between the current image and the reference image, and then according to the corresponding The actual displacement of the data display panel 12 can be calculated by the ratio.

In this embodiment, the image processor 5 includes a pre-storage unit, a pixel count unit and a calculation unit, and the pre-storage unit pre-stores the actual width D of at least one side of the data display panel 12 and the selected reference image; The current image acquired by the collector 4 is superimposed with the reference image, and the relative displacement Δd of the data display panel 12 in the two images and the width of the side corresponding to the pre-stored side of the data display panel 12 in the image are calculated according to the pixel points. d; the calculation unit calculates the actual displacement ΔD of the data display panel (12) according to the corresponding relationship, where ΔD=(D×Δd)/d.

In this embodiment, the reference image is preferably an image in which the data display panel 12 is located at the initial position of the maximum displacement.

Referring to FIG. 6 , it is a schematic diagram of the actual displacement calculation of the data display panel provided in this embodiment.

In this embodiment, the operating stroke of the oil pumping unit is generally in the range of 2.5-10 m. Therefore, the dynamometer body will not be distorted in the image information obtained by the image collector 4 within the range. Therefore, the pixel points are used to determine the The displacement and width of the data display panel in the image is the fastest way.

The power map measuring device in this embodiment collects the displacement value and the pressure load value through different acquisition units, so that the data processing efficiency can be improved and the power consumption of a single acquisition unit can be reduced. At the same time, the data display panel 12. The calculation of the actual displacement value is obtained by analyzing the proportional relationship between the image pixels and the actual size of the image. Compared with the existing multiple integration of the acceleration value, this calculation method has the advantages of faster operation speed and higher accuracy. , so the time delay is extremely small, which ensures that the collected pressure load values and the corresponding actual displacement values can be in one-to-one correspondence. In this embodiment, the dynamometer body 1 is also different from the existing dynamometer For the collection and display of the pressure load value, in the display process, in order to cooperate with the image collector 4 well, in the daytime, the output voltage of the solar panel 121 can be used to detect the current intensity of the light received by the solar panel 121, When the output voltage increases, the brightness of the currently working LED light is adjusted by the LED light dimmer, so that the brightness of the LED light can be higher relative to the light intensity. The overall structure of the display panel 12 is clearer. Therefore, by using the relationship between the intensity of the light received by the solar panel 121 and the output voltage, and by setting the frame 122 on the data display panel 12, the accuracy of the image information collected by the image collector 4 is increased. and clarity, thereby improving the accuracy of the acquisition of pressure load values and actual displacement values.

Example 2:

Compared with Embodiment 1, the difference in this embodiment is that the frame 122 is formed of a light-emitting component, and the frame 122 is connected to the rechargeable battery 15 through wires, that is, the frame 122 can emit light or shine after it is powered on, which is preferred in this embodiment. The light-emitting component is a lamp tube, of course, it can also be other original components that emit light after being powered on, which is not specifically limited in this embodiment.

Example 3:

Compared with Embodiment 1, the difference in this embodiment is that the image processor 5 includes a fault identification unit, an image definition identification unit and a communication module. In this embodiment, the communication module preferably includes a long-distance communication module and a short-range communication module. , wherein the long-distance communication module can be at least one of a LoRa module, a GPRS module or a 4G module. This embodiment is preferably a low-power LoRa module, and the short-range communication module is a Bluetooth module or a Zigbee module. This embodiment is preferably a Bluetooth module; the fault identification unit communicates with the remote host device through the LoRa module, the image definition identification unit communicates with the controller on the dynamometer body 1 through the Bluetooth module, and the fault identification unit judges that the image information collected by the image collector 4 is abnormal. Send alarm information to the remote upper device. In this embodiment, the abnormal information includes the abnormality of the image collector 4 and the abnormality of the dynamometer body 1. The abnormality of the image collector 4 includes the damage or displacement of the image collector 4, and the power indicator The abnormality of the instrument body 1 includes that the data display board 12 is damaged or has no electricity, which causes the pressure load value to be unable to be displayed normally; the image definition recognition unit sends an enable to the controller through the communication module when it judges that the definition of the image collected by the image collector 4 is low signal, the controller adjusts the brightness and/or color of each LED lamp in the LED dot matrix 123 through the LED lamp dimmer according to the enable signal. In this embodiment, the main factor for the low image definition includes fog or rain. Due to external environmental influences, adjusting the brightness and color of the LED light can ensure that the pressure load value can still be clearly identified in the graphic information collected by the image collector 4 in foggy or rainy days.

Example 4

This embodiment provides a dynamometer dynamometer diagram measurement system based on visual recognition technology, the system includes the dynamometer dynamometer diagram measurement equipment and upper equipment mentioned in Embodiment 1 or Embodiment 2 or Embodiment 3, The power map measurement equipment uploads the sorted power map data to the upper device in the agreed format, and the upper device receives the power map data and performs relevant analysis according to the power map data to determine the oil well working conditions. The structure diagram between the image processor 5 and the upper device.

The above descriptions are only the embodiments of the present invention, and the common knowledge such as the well-known specific structures and characteristics in the solutions are not described too much here. It should be pointed out that for those skilled in the art, under the premise of not departing from the present utility model, several improvements can also be made, which should also be regarded as the protection scope of the present utility model, and these will not affect the implementation of the present utility model. effect and the applicability of the patent. The scope of protection claimed in this application shall be subject to the content of the claims, and the descriptions of the specific implementation manners in the description can be used to interpret the content of the claims.

Claims (10)

1. A dynamometer diagram measuring device based on visual identification technology is characterized by comprising a dynamometer body (1) and image processing equipment,

the dynamometer body (1) comprises a strain body (11) and a data display board (12), the strain body (11) comprises a load sensor (13) and a middle cavity, a control unit (14) and a rechargeable battery (15) are arranged in the middle cavity, and the control unit (14) comprises a controller and an LED lamp dimmer; the data display panel (12) comprises a solar cell panel (121), a frame (122) and an LED dot matrix (123) are arranged on the solar cell panel (121), the frame (122) is arranged on the periphery of the solar cell panel (121), the frame (122) is composed of a light-emitting component or a light-reflecting component, the LED dot matrix (123) is arranged on the front face of the solar cell panel (121), and the LED dot matrix (123) is used for displaying a pressure load value collected by a load sensor (13); the I/O port of the controller is respectively connected with a solar cell panel (121), a load sensor (13), an LED lattice (123) and an LED dimmer; the controller controls the LED lamp light modulator to adjust the brightness and/or color of each LED lamp in the LED dot matrix (123) according to the output voltage of the solar panel (121); the solar panel (121) is connected with the rechargeable battery (15) through the solar controller (16) and provides electric energy for the control unit (14), the load sensor (13) and the LED lattice (123) through the rechargeable battery (15);

the image processing equipment comprises an image collector (4) and an image processor (5), wherein at least the image collector (4) is fixedly arranged on one side of the dynamometer body (1), the visual angle of the image collector (4) can collect the maximum displacement of the dynamometer body (1) in motion, and the image collector (4) is used for acquiring image information of different positions of a data display panel (12) in the maximum displacement in real time and transmitting the acquired image information to the image processor (5); the image processor (5) respectively obtains a pressure load value in the image information and an actual displacement value corresponding to the data display board (12), and arranges the indicator diagram data according to the pressure load value and the actual displacement value.

2. The vision recognition technology-based indicator diagram measurement device of claim 1, the image processor (5) comprises a fault identification unit, an image definition identification unit and a communication module, the fault recognition unit is communicated with a remote upper device through the communication module, the image definition recognition unit is communicated with a controller on the indicator body (1) through the communication module, the fault recognition unit sends alarm information to the remote upper equipment when judging that the image information collected by the image collector (4) is abnormal, the image definition recognition unit sends an enabling signal to the controller through the communication module when judging that the image definition collected by the image collector (4) is low, and the controller adjusts the brightness and/or color of each LED lamp in the LED dot matrix (123) through the LED lamp dimmer according to the enabling signal.

3. A visual recognition technology-based indicator diagram measuring device as defined in claim 1 or 2, wherein the image processor (5) comprises a pre-storing unit in which the actual width D of at least one side of the data display panel (12) and the selected reference image are pre-stored, a pixel counting unit, and a calculating unit; the pixel counting unit is used for superposing the current image acquired by the image acquisition device (4) with the reference image, and calculating the relative displacement delta d of the data display panel (12) in the two images and the width d of the side of the data display panel (12) corresponding to one side in the image which is prestored according to pixel points; the calculation means calculates an actual displacement Δ D of the data display panel (12) from the correspondence relationship, where Δ D is (D × Δ D)/D.

4. The indicator diagram measurement device based on visual recognition technology as claimed in claim 1 or 2,

when the frame (122) is formed by a light reflecting component, an obtuse angle beta is formed between the inner side of the frame (122) and the solar cell panel (121);

when the frame (122) is formed by adopting a light-emitting component, the frame (122) is communicated with the rechargeable battery (15) through a lead.

5. The vision recognition technology-based indicator diagram measurement device of claim 3,

when the frame (122) is formed by a light reflecting component, an obtuse angle beta is formed between the inner side of the frame (122) and the solar cell panel (121);

when the frame (122) is formed by adopting a light-emitting component, the frame (122) is communicated with the rechargeable battery (15) through a lead.

6. The indicator diagram measuring device based on the visual identification technology as claimed in claim 1 or 2, wherein a fixed distance is provided between two adjacent LED lamps and between each LED lamp and the frame in the LED dot matrix (123), and the fixed distance satisfies that the distance between the two adjacent LED lamps and between each LED lamp and the upper, lower, left and right frames can be distinguished when the image collector (4) is located at the installation position.

7. The indicator diagram measuring device based on the visual identification technology as claimed in claim 3, wherein a fixed distance is provided between the adjacent two LED lamps and each LED lamp in the LED dot matrix (123) and the frame, and the fixed distance satisfies that the distance between the adjacent two LED lamps and each LED lamp and the upper, lower, left and right frames can be distinguished when the image collector (4) is located at the installation position.

8. The indicator diagram measuring device based on the visual identification technology as claimed in claim 4, wherein a fixed distance is provided between the adjacent two LED lamps and each LED lamp in the LED dot matrix (123) and the frame, and the fixed distance satisfies that the distance between the adjacent two LED lamps and each LED lamp and the upper, lower, left and right frames can be distinguished when the image collector (4) is located at the installation position.

9. The indicator diagram measuring device based on the visual identification technology as claimed in claim 5, wherein a fixed distance is provided between the adjacent two LED lamps and each LED lamp in the LED dot matrix (123) and the frame, and the fixed distance satisfies that the distance between the adjacent two LED lamps and each LED lamp and the upper, lower, left and right frames can be distinguished when the image collector (4) is located at the installation position.

10. A indicator diagram measuring system based on a visual identification technology is characterized by comprising the indicator diagram measuring device and upper equipment, wherein the indicator diagram measuring device is used for uploading the sorted indicator diagram data to the upper equipment, and the upper equipment is used for receiving the indicator diagram data and carrying out related analysis according to the indicator diagram data so as to judge the working condition of an oil well.

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