Portable oil detection device

Abstract

The invention provides a portable oil liquid detection device, and relates to the field of detection devices. The portable oil liquid detection device comprises a bin shell, a display screen is embedded in one side of the upper end face of the bin shell, two signal wires are fixedly arranged on one side of the rear end face of the bin shell, one end of each signal wire is connected with a sensor, and two power supply wires are fixedly arranged at the position, close to the middle point, of the rear end face of the bin shell. An oil tank is fixedly arranged on one side, close to the front end, in the bin shell. The whole device is of an integrated structure, the size is small, and the device is portable and easy to carry and operate; multi-parameter detection is achieved, comprehensive and accurate oil quality analysis is provided, automatic oil spot recognition and analysis can be achieved, and personal errors are reduced; the system can provide simplified or detailed data reports according to user groups (common users or professionals), is wide in application, and is suitable for various fields such as vehicle maintenance and industrial production.

Description

Technical Field

[0001] The present invention relates to the field of detection devices, and specifically to a portable oil detection device. Background Art

[0002] Qualified oil can reduce equipment failure rate, reduce oil consumption, extend the oil change interval, extend the life of the equipment, reduce maintenance costs, reduce unplanned downtime, and improve equipment utilization. The oil detection device is used to detect the indicators of the oil, and then judge the working conditions of the parts. The current portable hydraulic oil contamination detection device collects the hydraulic oil in the hydraulic equipment, and uses a particle sensor or a moisture sensor, etc., to analyze the pollutants such as particles and moisture in the test sample, and quantitatively and qualitatively describe the wear state of the equipment and the contamination status of the hydraulic oil, and find out the cause of the failure.

[0003] However, the oil detection devices in the prior art do not have a special oil stain recognition, and cannot automatically analyze the quality of the oil stain recognition; with a new oil stain recognition system, it is more convenient to operate and directly prompts the quality of the oil. It can also provide data to professionals, and can more efficiently determine whether to replace, whether it is correct, with high accuracy and small error, and the same oil will not show two results. Summary of the Invention

[0004] (I) Technical Solution To achieve the above object, the present invention is realized through the following technical solutions: A portable oil detection device, including a housing, on one side of the upper end surface of the housing is embedded a display screen, on one side of the rear end surface of the housing are fixedly provided two signal wires, and one end of each of the two signal wires is connected to a sensor. At the midpoint of the rear end surface of the housing are fixedly provided two power supply wires, and on one side of the inner part of the housing near the front end is fixedly provided an oil tank; At the rear position of the inner part of the housing located behind the oil tank is fixedly provided an inverter, on the other side of the inner part of the housing is fixedly provided a main board, on one side of the inner part of the oil tank is fixedly provided a micro pump, and on one side of the top end surface of the inner wall of the oil tank is fixedly provided a photographing oil stain recognition system.

[0005] Preferably, on one side of the upper end surface of the housing are opened two grooves, and the two sensors are respectively embedded in the two grooves.

[0006] Preferably, on one side of the outer wall of the housing near the rear end is embedded a fan, and on one side of the outer wall of the housing near the front end is penetrated an oil outlet pipe, and the other end of the oil outlet pipe communicates with the oil tank.

[0007] Preferably, the collection end of the micro pump is connected to an oil inlet pipe, and the end of the oil inlet pipe far from the micro pump penetrates the outer wall of the housing.

[0008] Preferably, the two sensors are electrically connected to the main board through signal wires and connected to the inverter through wires. The micro pump, the main board, and the fan are all connected to the inverter.

[0009] Preferably, the photographing oil spot recognition system includes an electric telescopic rod, a camera, and an acquisition circuit board. The acquisition circuit board is electrically connected to the main board, and the acquisition circuit board is built with image processing software.

[0010] Preferably, the inverter is connected to the vehicle power supply through two power connection wires and converts it into 24v voltage for power supply use.

[0011] Preferably, the sensor is built with an acquisition chip, and the acquisition chip is electrically connected to a probe arranged at one end of the sensor.

[0012] Working principle: First, plug in the power supply and turn on the switch. The display screen is turned on and the app interface of the built-in system is automatically opened. Then log in and fill in the necessary mobile phone number, viscosity value, and user. At this time, the interfaces of the two monitoring items to be opened will be opened, and they can be independently opened or closed according to needs. Subsequently, use the built-in micro pump to suck a small amount of oil into the oil tank, start the automatic oil spot recognition system, and take pictures and analyze the oil spots formed by the oil in the oil tank. The sensor for collection is embedded inside the fuel tank to contact the oil, measure the required data, and perform processing and comprehensive analysis through the front-end display software. A detailed analysis report of the oil quality is displayed on the screen, including suggestions on whether the oil needs to be replaced.

[0013] (II) Beneficial effects The present invention provides a portable oil detection device. It has the following beneficial effects: The present invention provides a portable oil detection device. By proposing a multifunctional and portable oil quality detection device and its usage method, the accuracy and efficiency of oil analysis are significantly improved through automatic oil spot recognition and multi-parameter detection. The device is easy to operate, enabling non-professionals to quickly and accurately evaluate the oil quality in various application scenarios, and can provide intuitive or professional data reports according to different user groups. Its result data is more accurate, data analysis is more efficient, and multiple conditions are used to judge whether to replace, saving time and cost. Description of the drawings

[0014] Figure 1 It is a rear view structural schematic diagram of the present invention; Figure 2 It is a front view structural schematic diagram of the present invention; Figure 3 It is a top cross-sectional structural schematic diagram of the present invention.

[0015] Among them, 1. Silo shell; 2. Display screen; 3. Groove; 4. Sensor; 5. Signal wire; 6. Power supply connection; 7. Inverter; 8. Main board; 9. Fan; 10. Oil outlet pipe; 11. Photograph oil stain recognition system; 12. Oil tank; 13. Micro pump; 14. Oil inlet pipe. Specific implementation mode

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0017] Embodiment: As Figures 1-3 shown, the embodiment of the present invention provides a portable oil detection device, including a silo shell 1. One side of the upper end surface of the silo shell 1 is embedded with a display screen 2. The display screen 2 is built-in with a front-end display software system. The front-end display software system displays data based on a digital-to-analog conversion module and a data transceiver module. The digital-to-analog conversion module analyzes data based on an algorithm and converts it into information that users can directly understand. The data transceiver module includes the functions of directly displaying data transmission on the digital display screen of the device and receiving the collected data. The core algorithm of the digital-to-analog conversion module adopts the binary weighted method:

[0018] Among them, is the output voltage, is the reference voltage, is the digital value 0 or 1 of the i-th bit, and N is the number of bits of the DAC.

[0019] Specifically, analog-to-digital conversion is to convert a continuous voltage signal into a discrete digital signal, that is, sample the continuous signal at a specific time interval to obtain discrete voltage values. The sampling frequency needs to be high enough to avoid aliasing; convert the sampled voltage value into a digital value. The quantization accuracy depends on the number of bits of the ADC. For example, an 8-bit ADC can quantize the signal into 256 different values from 0 to 255, while a 16-bit ADC can quantize it into 65,536 different values from 0 to 65,535. The calculation formula is:

[0020] Among them, is the quantized digital value, is the sampled voltage, is the maximum input voltage of the reference voltage ADC, and N is the number of bits of the ADC.

[0021] The quantized digital signals are stored and processed. These digital values can be stored in a buffer for further analysis or processing. The processed digital signals are usually decoded or converted into a user-friendly representation. For example, a temperature signal is converted into a temperature value.

[0022] On one side of the rear end face of the silo shell 1, two signal wires 5 are fixedly arranged. One end of each of the two signal wires 5 is connected to a sensor 4. At the midpoint of the rear end face of the silo shell 1, two power supply terminals 6 are fixedly arranged. On one side of the interior of the silo shell 1 near the front end, an oil tank 12 is fixedly arranged; inside the silo shell 1, an inverter 7 is fixedly arranged at the rear position of the oil tank 12. On the other side of the interior of the silo shell 1, a main board 8 is fixedly arranged. Inside the oil tank 12, a micro pump 13 is fixedly arranged on one side, and a photo oil stain recognition system 11 is fixedly arranged on one side of the top end face of the inner wall of the oil tank 12. By integrating portable components such as the sensor 4, the main board 8, and the pump body into a portable device, the present invention provides a compact, efficient, and integrated solution, overcoming the disadvantages of scattered equipment and complex operation in the prior art.

[0023] The various data of the oil fluid are collected by the sensor 4. These sensors 1 are responsible for converting chemical or physical properties into electrical signals. These electrical signals are first transmitted to the acquisition board circuit board 104, which preliminarily processes the signals, such as amplifying and filtering out noise, to optimize the signal quality; Among them, amplification: amplifying the weak signal to a range that can be effectively processed by the analog-to-digital converter (ADC); in this embodiment, a non-inverting amplifier is used: Circuit: The input signal is connected to the non-inverting input terminal of the operational amplifier, and a resistor connects the inverting input terminal to the ground, and another resistor connects the inverting input terminal to the output terminal. The formula:

[0024] Where: is the output voltage, is the input voltage, is the feedback resistor, is the input resistor; Gain: ; Filtering and denoising: Filtering out unwanted noise and interference to improve the signal-to-noise ratio. Common filters include low-pass filters to remove high-frequency noise, high-pass filters to remove low-frequency drift, and band-pass filters to select signals within a specific frequency range; Filtering can be achieved using various types of filters, including passive filters (using resistors, capacitors, and inductors) and active filters (using operational amplifiers and RC components). A second-order active low-pass filter is adopted, and the calculation formula is: The transfer function is

[0025] Among them, is the quality factor, is the natural angular frequency, , is the natural frequency.

[0026] Referring to Figures 1-3 , on one side of the upper end face of the bin housing 1, two grooves 3 are provided. Two sensors 4 are respectively embedded in the two grooves 3. That is, when not in use, the sensors 4 can be stored in the grooves 3 to complete rapid storage; On one side of the outer wall of the bin housing 1 near the rear end, a fan 9 is embedded. On one side of the outer wall of the bin housing 1 near the front end, an oil outlet pipe 10 penetrates through and the other end of the oil outlet pipe 10 communicates with the oil tank 12. The collection end of the micro pump 13 is connected with an oil inlet pipe 14 and the end of the oil inlet pipe 14 far away from the micro pump 13 penetrates through the outer wall of the bin housing 1; that is, the oil in the fuel tank is pumped out for detection by using the micro pump 13 arranged inside in cooperation with the oil inlet pipe 14, and is discharged through the oil outlet pipe 10 after the detection is completed.

[0027] The two sensors 4 are electrically connected to the main board 8 through signal wires 5 and are connected to the inverter 7 through wires. The micro pump 13, the main board 8, and the fan 9 are all connected to the inverter 7; that is, the screen, the main board 8, the sensor 4, and the micro pump 13 are connected to the inverter 7, and the inverter 7 and the vehicle power supply supply power to the micro pump 13, the main board 8, and the sensor 4.

[0028] The oil stain recognition system 11 for photographing includes an electric telescopic rod, a camera, and a collection circuit board. Among them, the collection circuit board is electrically connected to the main board 8. The collection circuit board is built-in with image processing software, and the oil stain generated by the oil collected in the oil tank 12 is photographed by the electric telescopic rod in cooperation with the camera photographing system. The result after photographing is uploaded to the oil analysis interface, and the quality of the oil is determined by density, dielectric constant, viscosity, and the dispersibility of the oil; In this embodiment: Collection board: used to receive and distribute the signals from the sensors to the main board.

[0029] Sensors: including but not limited to pH sensors, conductivity sensors, temperature sensors, etc., used to detect multiple parameters of the oil.

[0030] Large screen display: shows the detection results, including real-time data and the evaluated quality of the oil after analysis.

[0031] Power module: It contains a built-in small inverter that converts the vehicle's DC power into the power required by the device.

[0032] Automatic oil stain recognition system: It obtains oil stain images through a camera and performs quality analysis through image processing software.

[0033] Front-end display software: It is used to process sensor data, display the results on the screen, and also has functions of data analysis and report generation.

[0034] The overall device adopts an integrated structure, with a small volume, portable equipment, easy to carry and operate; it has multi-parameter detection, provides comprehensive and accurate oil quality analysis, and can automatically identify and analyze oil stains, reducing human errors; it can provide simplified or detailed data reports according to user groups (ordinary users or professionals), and has a wide range of applications, suitable for multiple fields such as vehicle maintenance and industrial production.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable oil detection device, comprising a housing (1), characterized in that: A display screen (2) is embedded on one side of the upper end surface of the silo shell (1); two signal wires (5) are fixedly arranged on one side of the rear end surface of the silo shell (1); one end of each of the two signal wires (5) is connected to a sensor (4); two power supply wirings (6) are fixedly arranged at the midpoint of the rear end surface of the silo shell (1); and an oil tank (12) is fixedly arranged on one side of the interior of the silo shell (1) at the front end; An inverter (7) is fixedly arranged inside the shell (1) at the rear end of the oil tank (12), a mainboard (8) is fixedly arranged on the other side of the shell (1), a micro pump (13) is fixedly arranged on one side of the oil tank (12), and a photo-taking oil spot recognition system (11) is fixedly arranged on one side of the top surface of the inner wall of the oil tank (12).

2. A portable oil detection device according to claim 1, characterized in that: Two grooves (3) are provided on one side of the upper end surface of the storage shell (1), and the two sensors (4) are respectively embedded in the two grooves (3).

3. A portable oil detection device according to claim 1, characterized in that: A fan (9) is embedded in one side of the outer wall of the silo shell (1) near the rear end, and an oil outlet pipe (10) is penetrated through one side of the outer wall of the silo shell (1) near the front end, and the other end of the oil outlet pipe (10) is connected to the oil tank (12).

4. A portable oil detection device according to claim 1, characterized in that: The collection end of the micro pump (13) is connected to an oil inlet pipe (14), and the end of the oil inlet pipe (14) away from the micro pump (13) penetrates the outer wall of the storage shell (1).

5. A portable oil detection device according to claim 1, characterized in that: The two sensors (4) are electrically connected to the main board (8) via signal wires (5) and are connected to the inverter (7) via wires. The micro pump (13), the main board (8) and the fan (9) are all connected to the inverter (7).

6. A portable oil detection device according to claim 1, characterized in that: The photographic oil spot recognition system (11) comprises an electric telescopic rod, a camera and a collection circuit board, wherein the collection circuit board is electrically connected to a main board (8), and the collection circuit board has built-in image processing software.

7. A portable oil detection device according to claim 1, characterized in that: The inverter (7) is connected to the vehicle power supply via two power supply wires (6) and converts the power supply into a 24V voltage for power supply.

8. The portable oil detection device according to claim 1, characterized in that: The sensor (4) has a built-in acquisition chip, and the acquisition chip is electrically connected to a probe arranged at one end of the sensor (4).

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