CN112611438A - Verification measuring tank and measuring method for oiling machine - Google Patents

Abstract

The invention discloses an oiling machine verification measuring tank, which comprises a tank body and liquid level meters arranged on the tank body, wherein the liquid level meters are at least three and are equidistantly distributed on the side wall of the tank body in a surrounding manner, the tank body is also connected with a camera which is right opposite to the liquid level meters, the camera is connected with a computer, a liquid level identification module, a scale identification module, a calculation module and a storage module are arranged in the computer, and the liquid level measuring method is that the computer accurately collects liquid level images of at least three automatic liquid level meters through the camera, processes the liquid level images in real time, identifies the liquid level height, replaces manual reading of a vernier caliper, and finally, an average value is obtained to replace manual regulation of a standard metal measuring device leveling bolt for leveling.

Description

Verification measuring tank and measuring method for oiling machine

Technical Field

The invention belongs to the technical field of oil product storage, and particularly relates to a verification measuring tank and a measuring method for an oiling machine.

Background

The first generation of fuel dispenser verification equipment in China is a standard metal measuring device introduced into the United states in China in the early nineties, and the standard metal measuring device is continuously used up to now after technical transformation of national measurement scientific research institute, and the uncertainty of the standard metal measuring device is 0.025%. For standardization of fuel dispenser verification, the country has established JJG443-1986 'testing and verification rules for metered fuel dispensers', JJG443-1998 'fuel dispensers', JJJG 443-2006 'fuel dispensers' and JJG443-2015 'fuel dispensers' in sequence, the rules provide the verification conditions and verification equipment, most domestic metering technical organizations adopt the quantitative verification mode, at present, the fuel dispensers in China are mainly carried out by adopting a capacity comparison method, and used standard devices mainly comprise standard metal meters and thermometers, as shown in the figure. The fuel dispenser adds a certain amount of oil to a standard metal measuring device, generally 20L or 100L, adjusts the position of a vernier caliper on a liquid indicating pipe of the standard metal measuring device, and reads the liquid level height through human eyes.

In order to ensure the accuracy of the volume measurement value of the standard metal measuring device, an elongated measuring neck and a liquid indicating pipe capable of observing the liquid level position are designed at the upper part of the measuring device, and a vernier caliper parallel to the measuring neck is arranged at the liquid indicating pipe to read the accurate liquid level value. A thermometer is placed in a measuring neck to read the temperature of an oil gun opening and the balance temperature of oil in a standard measuring device, then the standard volume of the oil at 20 ℃ is obtained through manual calculation through a volume calculation formula and a temperature correction formula in a verification regulation of JJJG 43-2015 fuel dispenser, the standard volume is compared and calculated with indication values of the fuel dispenser, and after the measurement is carried out for multiple times at different flow rates, the fuel dispenser is judged to be qualified through the obtained indication value error and repeatability of the fuel dispenser. The method is a point-to-point verification method, and has the defects of low efficiency due to full manual verification and inaccurate and unreliable reading of the liquid level height value and the temperature value due to the fact that verification personnel are easily influenced by visual angles and environments.

And this method has several disadvantages as follows.

1. The basic information entry is cumbersome. Each gas station is provided with a plurality of oiling machines, information of the gas stations and the like needs to be filled in each original record, and the information is repeatedly input;

2. the manual reading of the liquid level data has large error. The liquid level height needs to manually move the vernier caliper to align the measured liquid level of the liquid display tube, the step highly depends on the resolution of human eyes, and when the human eyes are not parallel to the liquid level or are high or low, position deviation is easy to occur, so that the liquid level reading has errors;

3. the error of the manual reading of the temperature data is large. Generally, a mercury thermometer is inserted into a measuring neck to manually read the temperature of an oil gun mouth and the temperature in a measuring device, and the temperature is read by the same thermometer, so that the data accuracy is poor, and the safety and the reliability are low;

4. the calculation difficulty is high. After the numerical values such as the liquid level height, the temperature value and the like are obtained through field operation, the numerical values such as the standard volume, the flow rate, the index error and the like of the oil product at the temperature of 20 ℃ need to be manually calculated according to a formula, and the calculation workload is large and errors are prone to occurring.

5. Before the standard tank is refueled, whether the metering tank is in the horizontality is generally known through observing the level gauge, and the height of the metering tank can not be adjusted by the method, so that the measuring accuracy of the metering tank is reduced, the limitation of the metering tank is improved, and inconvenience is brought to a user.

Those skilled in the art have therefore endeavored to develop a dispenser verification metering tank and method of metering that is simple in construction, easy to meter, and does not require leveling.

Disclosure of Invention

In view of the above defects in the prior art, the technical problem to be solved by the present invention is to provide a calibration measuring tank for an oiling machine and a process method, wherein the calibration measuring tank is not easy to filter and has a good filtering effect.

In order to achieve the purpose, the invention provides a calibrating and metering tank for an oiling machine, which comprises a tank body and liquid level meters arranged on the tank body, wherein the liquid level meters are at least three and are distributed on the side wall of the tank body in an equidistance surrounding manner, the tank body is also connected with a camera which is over against the liquid level meters, the camera is connected with a computer, and a liquid level identification module, a scale identification module, a calculation module and a storage module are arranged in the computer.

The liquid level meter and the camera are arranged in a camera bellows, and an illuminating lamp is arranged in the camera bellows.

The light is the bar lamp and moves towards with the trend of level gauge is parallel.

Still be provided with wireless connection module in the computer, wireless connection module wireless connection has the smart mobile phone.

The tank body is further provided with a temperature sensor, and a temperature sensing module connected with the temperature sensor is arranged in the computer.

And a drying agent is also placed in the dark box.

The invention also provides a liquid level metering method for calibrating the metering tank of the oiling machine, which comprises the following steps:

s1, starting the illuminating lamp, illuminating the liquid level meter, and shooting the liquid level meter by the camera;

s2, the liquid level identification module identifies the liquid level, the scale identification module identifies the scale on the liquid level meter corresponding to the liquid level, and N liquid level meters respectively correspond to obtain numerical values a1, a2 and a3 … … aN and store the numerical values in the storage module;

and S3, the calculation module calculates the average value of the values to obtain the final liquid level A = a1+ a2+ a3+ … … aN/N, and the final liquid level A = a1+ a2+ a3+ … … aN/N is displayed on the screen of the computer and is stored in the storage module.

The invention has the beneficial effects that: the invention discloses a verification measuring tank for an oiling machine, which comprises a tank body and liquid level meters arranged on the tank body, wherein the liquid level meters are at least three and are distributed on the side wall of the tank body in an equidistant surrounding manner, the tank body is also connected with a camera which is right opposite to the liquid level meters, the camera is connected with a computer, a liquid level recognition module, a scale recognition module, a calculation module and a storage module are arranged in the computer, the computer accurately collects liquid level images of the three automatic liquid level meters through the camera, processes the liquid level images in real time, recognizes the liquid level height, replaces manual reading of a vernier caliper, and finally, an average value is obtained to replace manual regulation of a standard metal measuring.

Drawings

FIG. 1 is a schematic side view of the structure of the present invention;

fig. 2 is a partial structural schematic diagram of the present invention.

Detailed Description

The invention is further illustrated by the following figures and examples.

As shown in the figures 1 and 2, the measuring tank for calibrating the oiling machine comprises a tank body 1 and a liquid level meter 2 installed on the tank body 1, wherein the liquid level meter 2 is at least three and is distributed on the side wall of the tank body 1 in a surrounding mode at equal intervals, the tank body 1 is further connected with a camera 3 just opposite to the liquid level meter 2, the camera 3 is connected with a computer, a liquid level identification module, a scale identification module, a calculation module and a storage module are arranged in the computer, the computer accurately collects liquid level images of the three automatic liquid level meters through the camera, the liquid level images are processed in real time, the liquid level height is identified, a vernier caliper is read instead of manpower, and finally, an average value is obtained, and the leveling is performed instead.

In this embodiment, level gauge 2 and camera 3 are installed in a camera bellows 4, install light 5 in the camera bellows 4, and light 5 is bar lamp and moves towards parallel with the trend of level gauge 2, for level gauge 2 provides good illumination, makes things convenient for the camera to shoot the scale on clear liquid level and the level gauge 2.

The temperature sensor 6 is still installed to jar body 1, is provided with the temperature-sensing module of being connected with temperature sensor 6 in the computer, and the computer passes through temperature sensor 6 automatic acquisition jar internal temperature 1, replaces the manual work to read mercury thermometer.

The drying agent 7 is also arranged in the dark box and used for absorbing moisture in the dark box and ensuring that the camera 3 can clearly shoot the liquid level meter 2.

The invention also provides a liquid level metering method for calibrating the metering tank of the oiling machine, which comprises the following steps:

s1, starting an illuminating lamp, illuminating a liquid level meter 2, and shooting the liquid level meter 2 by a camera;

s2, the liquid level identification module identifies the liquid level, the scale identification module identifies the scales on the liquid level meters 2 corresponding to the liquid level, and the N liquid level meters 2 respectively obtain numerical values a1, a2 and a3 … … aN in a corresponding mode and store the numerical values in the storage module;

s3, the calculation module calculates the average value of the values to obtain the final liquid level A = a1+ a2+ a3+ … … aN/N, and the final liquid level A = a1+ a2+ a3+ … … aN/N is displayed on a screen of a computer and stored in a storage module.

And a wireless connection module is also arranged in the computer, and the wireless connection module is in wireless connection with the smart phone, so that the final liquid level A is sent to the smart phone for real-time monitoring.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (7)

1. The utility model provides an tanker aircraft examination metering tank, includes jar body (1) and installs level gauge (2) on the jar body (1), characterized by: the utility model discloses a liquid level meter, including tank body (1), tank body (1) and camera (3), level gauge (2) have at least three and equidistance around distributing on the lateral wall of the tank body (1), the tank body (1) still is connected with just right the camera (3) of level gauge (2), camera (3) are connected with the computer, be provided with liquid level identification module, scale identification module, calculation module and storage module in the computer.

2. A dispenser certification measuring tank in accordance with claim 1, wherein: the liquid level meter (2) and the camera (3) are installed in a dark box (4), and an illuminating lamp (5) is installed in the dark box (4).

3. A dispenser certification measuring tank in accordance with claim 1, wherein: the illuminating lamp (5) is a strip lamp and the trend of the illuminating lamp is parallel to the trend of the liquid level meter (2).

4. A dispenser certification measuring tank in accordance with claim 1, wherein: still be provided with wireless connection module in the computer, wireless connection module wireless connection has the smart mobile phone.

5. A dispenser certification measuring tank in accordance with claim 1, wherein: the tank body (1) is further provided with a temperature sensor (6), and a temperature sensing module connected with the temperature sensor (6) is arranged in the computer.

6. A dispenser certification measuring tank in accordance with claim 2, wherein: and a drying agent (7) is also arranged in the dark box.

7. A method for verifying the level of a measuring tank of a fuel dispenser as set forth in claims 1-6, characterized in that: the method comprises the following steps:

s1, starting the illuminating lamp, illuminating the liquid level meter (2), and shooting the liquid level meter (2) by the camera;

s2, the liquid level identification module identifies the liquid level, the scale identification module identifies the scale on the liquid level meter (2) corresponding to the liquid level, and N liquid level meters (2) respectively obtain numerical values a1, a2 and a3 … … aN in a corresponding mode and store the numerical values in the storage module;

and S3, the calculating module calculates the average value of the values to obtain the final liquid level A = (a 1+ a2+ a3+ … … aN)/N, and the final liquid level A = (a 1+ a2+ a3+ … … aN)/N is displayed on a screen of the computer and stored in the storage module.

Images