CN103674167B - Oil mass accurate calibration instrument and implementation method thereof - Google Patents
Oil mass accurate calibration instrument and implementation method thereof Download PDFInfo
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- CN103674167B CN103674167B CN201310725286.5A CN201310725286A CN103674167B CN 103674167 B CN103674167 B CN 103674167B CN 201310725286 A CN201310725286 A CN 201310725286A CN 103674167 B CN103674167 B CN 103674167B
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Abstract
The invention discloses an oil mass accurate calibration instrument and an implementation method thereof. The oil mass accurate calibration instrument comprises a main machine, a power supply device, a flowmeter sensor, a liquid level height sensor and an electric pump. The main machine is respectively connected with the power supply device, the flowmeter sensor and the liquid level height sensor, the liquid level height sensor is installed in an oil tank, the power supply device is connected with the electric pump, and the electric pump is arranged between an oil inlet and the flowmeter sensor. According to the oil mass accurate calibration instrument and the implementation method thereof, due to the fact that flowmeter pulse signals and voltage signals outputted from the liquid level height sensor are collected synchronously, the corresponding relation between the height and the oil mass value at the left liquid level of the oil tank is obtained, errors caused by manual operation in a traditional mode are avoided, the whole calibration process can be completed within 10-20 minutes (2-3hours are needed in the traditional mode) , efficiency is improved greatly, dependency on constructors is reduced, and excellent promotion effect on popularization of the whole industry can be achieved.
Description
Technical field
The present invention relates to automobile oil mass calibration technology field, particularly to a kind of oil mass accurate calibration instrument and its realization side
Method.
Background technology
The key subjects of the collection of automotive oil tank Fuel Oil Remaining, always vehicle operating cost management, particularly by this
It is applied to vehicle location remote wireless monitoring management system (Big Dipper of such as logistics transportation/gps wireless monitoring management system).For
Reach the application effect of practicality, be required for doing a process, industry is referred to as calibration (or demarcation), that is, demarcate certain highly correspondence many
Few oil mass, traditional way is artificially highly to draft fuel tank for several sections, by piecewise linear thought, craft to each
Break and calibrated.
But this way, introduce personal error, and the dependence to workmen's proficiency is higher, and efficiency of construction
Lowly, had a strong impact on a logistic industry focus solution cannot popularize and effective solution.
In view of this, prior art could be improved and improves.
Content of the invention
In view of in place of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of oil mass accurate calibration instrument and its
Implementation method, to solve when existing automobile oil mass is demarcated using manually carrying out, the problem of the manual operation error brought.
In order to achieve the above object, this invention takes technical scheme below:
A kind of oil mass accurate calibration instrument, wherein, comprising: main frame, electric supply installation, flowmeter sensor, liquid level sensing
Device and electric pump；
Described main frame connects electric supply installation, flowmeter sensor and liquid level sensor, liquid level sensor respectively
It is arranged in fuel tank, electric supply installation connects described electric pump, electric pump is arranged between oil-in and flowmeter sensor；
By oil from oil-in suction, oil flows through described flowmeter sensor to electric pump, and is flowed into described fuel tank from oil-out
In；This flow in process flowmeter sensor output pulse signal sends it to main frame, and main frame combines stream according to pulse signal frequency
Gauge transduction factor calculates the oil mass value being input to fuel tank；Meanwhile, main frame passes through oil mass in liquid level sensor acquisition fuel tank
Corresponding voltage signal is worth to the corresponding relation of oil mass value and magnitude of voltage, completes oil mass calibration.
Described oil mass accurate calibration instrument, wherein, described electric supply installation includes the first power supply being connected with main frame, Yi Jiyu
The second source that electric pump connects.
Described oil mass accurate calibration instrument, wherein, described first power supply is 9-36v DC source, and described second source is
220v alternating current power supply.
Described oil mass accurate calibration instrument, wherein, described liquid level sensor is dipstick.
Described oil mass accurate calibration instrument, wherein, also include one for operation and show display screen, described display screen and
Main frame is connected.
A kind of implementation method of described oil mass accurate calibration instrument, wherein, comprises the following steps:
Oily oil-in suction, oil are flowed through described flowmeter sensor by s1, electric pump, and are flowed into described fuel tank from oil-out
In；
When s2, oil flow through flowmeter sensor, sensor output pulse signal simultaneously sends to main frame, meanwhile, liquid level
Sensor obtains the corresponding voltage signal of liquid level send described voltage signal to main frame in fuel tank, and main frame is converted to voltage
Value；
, during sky is filled it up with, main frame calculates oil pump capacity value according to the pulse signal that receives for s3, fuel tank, and record with
Described oil mass is worth corresponding magnitude of voltage, obtains the corresponding relation of one group of oil mass value and magnitude of voltage, completes oil mass calibration.
Described implementation method, wherein, further comprises the steps of:
S4, in vehicle traveling process, liquid level sensor obtain fuel tank in the corresponding voltage signal of liquid level, will be described
Voltage signal sends to main frame, obtains magnitude of voltage；
S5, main frame, according to calculating gained magnitude of voltage, inquire about the corresponding relation of described oil mass value and voltage signal, by local
Interval is linearly calculated oil mass value corresponding with described magnitude of voltage, and described oil mass value is current fuel tank residual liquid level and corresponds to
Oil mass.
Described implementation method, wherein, also includes:
S6, show the corresponding oil mass of current fuel tank residual liquid level by described display screen.
The oil mass accurate calibration instrument providing compared to prior art, the present invention and its implementation, by synchronous acquisition arteries and veins
Rush signal and voltage signal, set up the corresponding relation of fuel tank fuel quantity value and liquid level sensor magnitude of voltage, solve tradition because people
For operating the error brought, whole calibration process can complete (traditional method needs 2 ~ 3 hours) in 10 ~ 20 minutes, greatly
Improve efficiency, reduce dependence to workmen, good facilitation can be played for the popularization of whole industry.
Brief description
The structured flowchart of the first embodiment of the oil mass accurate calibration instrument that Fig. 1 provides for the present invention.
The calibration effect diagram of the embodiment of the oil mass accurate calibration instrument that Fig. 2 provides for the present invention.
The flow chart of the implementation method of the oil mass accurate calibration instrument that Fig. 3 provides for the present invention.
Specific embodiment
The present invention provides a kind of oil mass accurate calibration instrument and its implementation, for make the purpose of the present invention, technical scheme and
Effect is clearer, clear and definite, and the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.It should be appreciated that herein
Described specific embodiment only in order to explain the present invention, is not intended to limit the present invention.
The oil mass accurate calibration instrument that the present invention provides includes: main frame, electric supply installation, flowmeter sensor, liquid level pass
Sensor and electric pump；Described main frame connects electric supply installation, flowmeter sensor and liquid level sensor respectively, and liquid level senses
Device is arranged in fuel tank, and electric supply installation connects described electric pump, and electric pump is arranged between oil-in and flowmeter sensor.
Specifically,
By oil from oil-in suction, oil flows through described flowmeter sensor to electric pump, and is flowed into described fuel tank from oil-out
In；This flow in process flowmeter sensor output pulse signal sends it to main frame, and main frame combines stream according to pulse signal frequency
Gauge transduction factor calculates the oil mass value being input to fuel tank；Meanwhile, main frame passes through oil mass in liquid level sensor acquisition fuel tank
Corresponding voltage signal is worth to the corresponding relation of oil mass value and magnitude of voltage, completes oil mass calibration.
Refer to Fig. 1, the structured flowchart of the first embodiment of its oil mass accurate calibration instrument providing for the present invention.As schemed
Show, in the present embodiment, described main frame (in figure is indicated with accurate calibration instrument main frame), described electric supply installation includes two power supplys:
The first power supply (in the present embodiment, described first power supply is power supply 9-36v DC source) being connected with main frame, and and electric pump
The second source (in the present embodiment, described second source is power supply 220v alternating current power supply) connecting.Described liquid level sensing
Device is dipstick (or other liquid level sensors), and described dipstick is arranged in fuel tank.
As illustrated, diesel oil is in the presence of electric pump, flows into from oil-in (in figure oil-feed indicates), flow through effusion meter,
And from the fuel-displaced sign of oil-out in figure) be flowed into fuel tank, the flowmeter sensor being arranged on effusion meter collects pulse
Signal, and described pulse signal is sent to main frame, it is defeated that main frame combines the calculating of effusion meter transduction factor according to pulse signal frequency
Enter the oil mass value to fuel tank；Meanwhile, main frame passes through the corresponding voltage signal of oil mass in liquid level sensor acquisition fuel tank is worth
To the corresponding relation of oil mass value and magnitude of voltage, complete oil mass calibration.
Further, as shown in figure 1, described oil mass accurate calibration instrument also includes a display screen, (in figure mmi shows oil mass
Value represents), for operational control and display oil mass value, described display screen is connected with main frame.
In vehicle traveling process, the voltage signal of Host Detection liquid level sensor output；Main frame is according to detecting
Magnitude of voltage, inquire about the corresponding relation of described oil mass value and magnitude of voltage, by interval being linearly calculated and described electricity in local
Pressure is worth corresponding oil mass value, and described oil mass value is the corresponding oil mass of current fuel tank residual liquid level.User can pass through display screen
Understand the corresponding oil mass of described current fuel tank residual liquid level in real time.
It is possible to further by whole calibration process, and the corresponding relation of oil mass value and magnitude of voltage.It is uploaded to backstage clothes
Business device or high in the clouds are stored, consequently, it is possible to when oil mass accurate calibration instrument goes wrong, then can pass through background server
Data is derived and uses.
Its calibration process be explained in detail below:
(1) Real-time Collection is to values below:
Go back from liquid level sensor highly corresponding magnitude of voltage:
v[cur] = adc_voltage_get(collection->oil_adc_pipe);
Obtain flow respective pulses from flowmeter sensor, and be converted to
flowcollect = flow_pule_get(collection->oil_adc_pipe);
w[cur] = a*flowcollect;(a is effusion meter coefficient)
The establishment process of the corresponding table of accurate calibration,
The oil flowing through effusion meter is fitted in fuel tank, when fuel tank is space-time, the oil mass flowing through effusion meter is fuel tank
Flow corresponding to interior current level,
Then we create a vw and correspond to table, do and record:
First with i as sequence number, in liquid level sensor sensing to change precision
During i=0: v [0]=v [cur], w [0]=w [cur]；
During i > 0, v [cur]-v [0] > v0:v [i]=v [i-1], w [i]=w [i-1]；
So repeat to terminate until calibration, generate whole vw table.
(2), after completing calibration, calculate current oil mass using vw meter:
Go back on Real-time Collection liquid level sensor highly corresponding magnitude of voltage v [cur], from vw table, index out correspondence
I, thus obtaining current oil mass:
i = indexes*(v[cur]);
w[cur] = w[i];
W [cur] is the corresponding oil mass of current fuel tank residual liquid level.
To verify above-mentioned oil mass accurate calibration instrument below by a test:
Actual acquisition reference record is as follows
0.18 0
0.185 13.957
0.226 15.02
0.23 16.105
0.272 16.539
0.275 18.163
0.316 18.819
0.32 20.398
0.36 21.118
0.365 22.291
0.405 23.395
0.41 24.323
0.449 25.158
0.455 26.308
0.494 27.099
0.5 29.104
0.538 29.3
0.546 30.334
0.583 31.28
0.591 32.289
0.628 33.554
0.636 35.051
0.672 35.978
0.682 37.037
0.717 38.021
0.727 39.63
0.762 40.023
0.772 41.734
0.806 42.573
0.817 43.829
0.851 44.264
0.862 45.84
0.895 46.546
0.907 48.234
0.94 49.036
0.953 50.376
0.985 50.989
0.998 52.614
1.029 53.457
1.043 54.689
1.073 55.344
1.088 56.899
1.118 57.691
1.133 59.155
1.162 59.924
1.178 61.237
1.207 62.08
1.223 63.642
1.252 64.194
1.268 65.443
1.296 66.274
1.314 67.766
1.34 68.715
1.359 70.009
1.385 70.866
1.404 72.263
1.43 73.035
1.449 74.363
1.474 75.142
1.494 76.559
1.518 77.466
1.539 79.06
1.563 79.819
1.584 81.258
1.608 81.937
1.629 83.397
1.652 84.137
1.675 85.727
1.697 86.43
1.72 87.52
1.741 88.298
1.765 89.673
1.786 90.52
1.81 91.82
1.83 92.755
1.855 94.356
1.875 95.166
1.9 96.58
1.92 97.645
1.945 98.921
1.964 99.89
1.99 101.03
2.009 101.699
2.036 102.884
2.053 103.899
2.081 105.545
2.098 106.364
2.126 107.476
2.142 108.518
2.171 109.928
2.186 110.687
2.216 112.097
2.231 112.894
2.261 114.282
2.276 115.037
2.306 116.575
2.321 117.291
2.352 118.599
2.365 119.449
2.397 120.879
2.41 121.497
2.442 123.026
2.454 123.737
2.488 124.99
2.499 125.778
2.533 127.112
2.543 128.002
2.578 129.358
2.588 130.164
2.623 131.277
2.633 132.356
2.668 133.34
2.677 133.853
2.713 135.53
2.722 136.339
2.758 137.445
2.767 138.313
2.804 139.655
2.811 140.433
2.849 141.726
2.855 142.402
2.894 143.591
2.899 144.376
2.939 145.324
2.944 146.199
2.984 147.454
2.989 147.953
3.029 149.414
3.033 149.533
3.033 149.533
Altogether in two separate ranks, the 1st is classified as the corresponding liquid level voltage value of liquid level sensor output, unit v (volt) to data above；The
2 are classified as and reach this highly corresponding flow (i.e. presence of fuel tank flowing through effusion meter by what flowmeter sensor collected
Oil mass), unit l (rises).
Calibration effect diagram as shown in Figure 2 can be obtained by above-mentioned two groups of data.As illustrated, abscissa is collection
Export highly corresponding magnitude of voltage (i.e. the first column data) to liquid level sensor, vertical coordinate is the corresponding oil mass of fuel tank residual liquid level
(i.e. the second column data), this test is to carry out on the car of Guangdong bj7125.
Data above shows:
There is blind area in tank bottoms in a, liquid level sensor.
B, liquid level are existed linearly with corresponding volume, but this does not linearly have concordance, shows as top and exists
After 140l, linear gradient is inconsistent compared with below 140l.This phenomenon is coincide with practical situation, and showing as fuel tank top is arcuate structure.
C, this accurate calibration have been coincide actual environment, and have solved the error that traditional modeling introduces.
Present invention also offers a kind of implementation method of described oil mass accurate calibration instrument, as shown in figure 3, include with
Lower step:
Oily oil-in suction, oil are flowed through described flowmeter sensor by s1, electric pump, and are flowed into described fuel tank from oil-out
In；
When s2, oil flow through flowmeter sensor, sensor output pulse signal simultaneously sends to main frame, meanwhile, liquid level
Sensor obtains the corresponding voltage signal of liquid level send described voltage signal to main frame in fuel tank, and main frame is converted to voltage
Value；
, during sky is filled it up with, main frame calculates oil pump capacity value according to the pulse signal that receives for s3, fuel tank, and record with
Described oil mass is worth corresponding magnitude of voltage, obtains the corresponding relation of one group of oil mass value and magnitude of voltage, completes oil mass calibration.
Further, in described implementation method, further comprise the steps of:
S4, in vehicle traveling process, liquid level sensor obtain fuel tank in the corresponding voltage signal of liquid level, will be described
Voltage signal sends to main frame, obtains magnitude of voltage；
S5, main frame, according to calculating gained magnitude of voltage, inquire about the corresponding relation of described oil mass value and voltage signal, by local
Interval is linearly calculated oil mass value corresponding with described magnitude of voltage, and described oil mass value is current fuel tank residual liquid level and corresponds to
Oil mass.
Further, in described implementation method, also include:
S6, show the corresponding oil mass of current fuel tank residual liquid level by described display screen.
The details of said method is all described in detail in oil mass accurate calibration instrument, just no longer redundant later here
?.
In sum, the present invention provides oil mass accurate calibration instrument and its implementation, by synchronous acquisition pulse signal
With voltage signal, set up the corresponding relation of fuel tank fuel quantity value and liquid level sensor magnitude of voltage, solve tradition because manual operation
The error brought, whole calibration process can complete (traditional method needs 2 ~ 3 hours) in 10 ~ 20 minutes, greatly improves
Efficiency, reduce dependence to workmen, good facilitation can be played for the popularization of whole industry.
It is understood that for those of ordinary skills, with technology according to the present invention scheme and its can send out
Bright design in addition equivalent or change, and all these change or replace the guarantor that all should belong to appended claims of the invention
Shield scope.
Claims (4)
1. a kind of oil mass accurate calibration instrument is it is characterised in that include: main frame, electric supply installation, flowmeter sensor, liquid level
Sensor and electric pump；
Described main frame connects electric supply installation, flowmeter sensor and liquid level sensor respectively, and liquid level sensor is installed
In fuel tank, electric supply installation connects described electric pump, and electric pump is arranged between oil-in and flowmeter sensor；
By oil from oil-in suction, oil flows through described flowmeter sensor to electric pump, and is flowed into described fuel tank from oil-out；This
Flow in process flowmeter sensor output pulse signal sends it to main frame, and main frame combines effusion meter according to pulse signal frequency and passes
Sense coefficient calculates the oil mass value being input to fuel tank；Meanwhile, main frame is corresponding by oil mass in liquid level sensor acquisition fuel tank
Voltage signal is worth to the corresponding relation of oil mass value and magnitude of voltage, completes oil mass calibration；
Described liquid level sensor is dipstick；
Also include one for the display screen that equipment operation data shows, described display screen is connected with main frame；
The calibration process of described oil mass accurate calibration instrument is:
(1) Real-time Collection is to values below:
Highly corresponding magnitude of voltage v [cur] is obtained from liquid level sensor;
Obtain flow respective pulses from flowmeter sensor, and be converted to corresponding oil mass value w of current fuel tank residual liquid level
[cur]；
The corresponding table of accurate calibration is the establishment process of the corresponding table of vw is the oil flowing through effusion meter to be fitted in fuel tank, works as oil
Case is space-time, and the oil mass flowing through effusion meter is the flow corresponding to current level in fuel tank, then creates a vw and corresponds to table,
Do and record:
First with i as sequence number, in liquid level sensor sensing to change precision,
During i=0: v [0]=v [cur], w [0]=w [cur]；
During i > 0, v [cur]-v [0] > v0:v [i]=v [i-1], w [i]=w [i-1]；
So repeat to terminate until calibration, generate whole vw and correspond to table；
(2), after completing calibration, calculate current oil mass using the corresponding meter of vw:
Highly corresponding magnitude of voltage v [cur] is obtained on Real-time Collection liquid level sensor, from the corresponding table of vw, indexes out correspondence
I, thus obtaining current oil mass:
i = indexes*(v[cur]);
w[cur] = w[i];
W [cur] is the corresponding oil mass value of current fuel tank residual liquid level.
2. oil mass accurate calibration instrument according to claim 1 is it is characterised in that described electric supply installation includes being connected with main frame
The first power supply, and the second source being connected with electric pump.
3. oil mass accurate calibration instrument according to claim 2 is it is characterised in that described first power supply is 9-36v unidirectional current
Source, described second source is 220v alternating current power supply.
4. a kind of implementation method of the oil mass accurate calibration instrument described in claim 1 is it is characterised in that comprise the following steps:
Oily oil-in suction, oil are flowed through described flowmeter sensor by s1, electric pump, and are flowed into described fuel tank from oil-out；
When s2, oil flow through flowmeter sensor, sensor output pulse signal simultaneously sends to main frame, and meanwhile, liquid level senses
Device obtains the corresponding voltage signal of liquid level send described voltage signal to main frame in fuel tank, and main frame is converted to magnitude of voltage；
, during sky is filled it up with, main frame calculates oil pump capacity value according to the pulse signal that receives for s3, fuel tank, and record with described
Oil mass is worth corresponding magnitude of voltage, obtains the corresponding relation of one group of oil mass value and magnitude of voltage, completes oil mass calibration；
S4, in vehicle traveling process, liquid level sensor obtain fuel tank in the corresponding voltage signal of liquid level, by described voltage
Signal sends to main frame, obtains magnitude of voltage；
S5, main frame, according to calculating gained magnitude of voltage, inquire about the corresponding relation of described oil mass value and voltage signal, interval by local
Be linearly calculated oil mass value corresponding with described magnitude of voltage, described oil mass value be the corresponding oil of current fuel tank residual liquid level
Amount；
S6, show the corresponding oil mass of current fuel tank residual liquid level by described display screen.
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| CN107860434B (en) * | 2017-10-31 | 2019-06-28 | 安徽江淮汽车集团股份有限公司 | A kind of scaling method of fuel tank for automobile calibration system |
| CN110307879B (en) * | 2019-06-27 | 2021-08-24 | 南京智鹤电子科技有限公司 | Detection method and device for oil tank and server |
| CN111924791B (en) * | 2020-07-22 | 2022-03-22 | 南京智鹤电子科技有限公司 | Oil tank oil level calibration method and device and electronic equipment |
| CN112649065A (en) * | 2020-12-22 | 2021-04-13 | 上海海能信息科技有限公司 | Method and device for acquiring liquid level value based on metallurgical eddy current liquid level signal |
| CN112944734B (en) * | 2021-03-01 | 2023-08-15 | 青岛海尔空调电子有限公司 | Air conditioner compressor oil level determining method and air conditioner oil return control method |
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