CN103674167A - 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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- CN103674167A CN103674167A CN201310725286.5A CN201310725286A CN103674167A CN 103674167 A CN103674167 A CN 103674167A CN 201310725286 A CN201310725286 A CN 201310725286A CN 103674167 A CN103674167 A CN 103674167A
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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 a kind of oil mass is precisely calibrated instrument and its implementation.
Background technology
The collection of automotive oil tank Fuel Oil Remaining is the key subjects of vehicle operating cost management always, particularly this is applied to vehicle location remote wireless monitoring management system (for example Big Dipper/GPS wireless monitoring management system of logistics transportation).For reaching practical effect, all need to do a process, industry is called calibration (or demarcation), demarcate certain highly corresponding how many oil masses, traditional way is artificially fuel tank height to be drafted as several sections, and by piecewise linear thought, manual breaks and calibrate each.
Yet this way, has introduced personal error, and higher to the dependence of workmen's proficiency, and operating efficiency is low, has had a strong impact on that a logistic industry focus solution can not get popularizing and has effectively solved.
In view of this, prior art need to improve.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, the object of the present invention is to provide a kind of oil mass precisely to calibrate instrument and its implementation, to solve existing automobile oil mass timing signal employing, manually carry out the problem of the manual operation error of bringing.
In order to achieve the above object, the present invention has taked following technical scheme:
Oil mass is precisely calibrated an instrument, wherein, comprising: main frame, electric supply installation, flowmeter sensor, liquid level sensor and electric pump;
Described main frame connects respectively electric supply installation, flowmeter sensor and liquid level sensor, and liquid level sensor setting is in fuel tank, and electric supply installation connects described electric pump, and electric pump is arranged between oil-in and flowmeter sensor;
Electric pump by oil from oil-in suction, the oil described flowmeter sensor of flowing through, and flowing into described fuel tank from oil-out; This flow in process flowmeter sensor output pulse signal sends it to main frame, and main frame calculates the oil mass value that is input to fuel tank in conjunction with flowmeter transduction factor according to pulse signal frequency; Meanwhile, main frame obtains the corresponding relation of oil mass value and magnitude of voltage by the corresponding voltage signal values of oil mass in liquid level sensor collection fuel tank, complete oil mass calibration.
Described oil mass is precisely calibrated instrument, and wherein, described electric supply installation comprises the first power supply being connected with main frame, and the second source being connected with electric pump.
Described oil mass is precisely calibrated instrument, and wherein, described the first power supply is 9-36V direct supply, and described second source is 220V AC power.
Described oil mass is precisely calibrated instrument, and wherein, described liquid level sensor is dipstick.
Described oil mass is precisely calibrated instrument, wherein, also comprises a display screen for operating and showing, and described display screen is connected with main frame.
The implementation method that described oil mass is precisely calibrated instrument, wherein, comprises the following steps:
S1, electric pump be oily oil-in suction, the oil described flowmeter sensor of flowing through, and flow into described fuel tank from oil-out;
When S2, oil flow through flowmeter sensor, sensor output pulse signal is also sent to main frame, and meanwhile, liquid level sensor obtains the voltage signal that in fuel tank, liquid level is corresponding and described voltage signal is sent to main frame, and main frame is converted to magnitude of voltage;
The process that S3, fuel tank are filled it up with from sky, main frame calculates oil mass value according to the pulse signal receiving, and the record magnitude of voltage corresponding with described oil mass value, obtains the corresponding relation of one group of oil mass value and magnitude of voltage, completes oil mass calibration.
Described implementation method, wherein, also comprises step:
S4, in vehicle traveling process, liquid level sensor obtains the corresponding voltage signal of liquid level in fuel tank, and described voltage signal is sent to main frame, obtains magnitude of voltage;
S5, main frame, according to calculating gained magnitude of voltage, are inquired about the corresponding relation of described oil mass value and voltage signal, by the linearity between partial zones, calculate the oil mass value corresponding with described magnitude of voltage, and described oil mass value is oil mass corresponding to current fuel tank residual liquid level.
Described implementation method, wherein, also comprises:
S6, by described display screen, show oil mass corresponding to current fuel tank residual liquid level.
Compared to prior art, oil mass provided by the invention is precisely calibrated instrument and its implementation, by synchronous acquisition pulse signal and voltage signal, set up the corresponding relation of fuel tank fuel quantity value and liquid level sensor magnitude of voltage, solved tradition because the error that manual operation brings, whole calibration process can complete (traditional method needs 2 ~ 3 hours) in 10 ~ 20 minutes, improved greatly efficiency, reduced the dependence to workmen, for whole industry is universal, can play good facilitation.
Accompanying drawing explanation
Fig. 1 is the structured flowchart that oil mass provided by the invention is precisely calibrated the first embodiment of instrument.
Fig. 2 is the calibration effect schematic diagram of the oil mass provided by the invention embodiment that precisely calibrates instrument.
Fig. 3 is the process flow diagram that oil mass provided by the invention is precisely calibrated the implementation method of instrument.
Embodiment
The invention provides a kind of oil mass and precisely calibrate instrument and its implementation, for making object of the present invention, technical scheme and effect clearer, clear and definite, referring to accompanying drawing, developing simultaneously, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Oil mass provided by the invention is precisely calibrated instrument and is comprised: main frame, electric supply installation, flowmeter sensor, liquid level sensor and electric pump; Described main frame connects respectively electric supply installation, flowmeter sensor and liquid level sensor, and liquid level sensor setting is in fuel tank, and electric supply installation connects described electric pump, and electric pump is arranged between oil-in and flowmeter sensor.
Specifically,
Electric pump by oil from oil-in suction, the oil described flowmeter sensor of flowing through, and flowing into described fuel tank from oil-out; This flow in process flowmeter sensor output pulse signal sends it to main frame, and main frame calculates the oil mass value that is input to fuel tank in conjunction with flowmeter transduction factor according to pulse signal frequency; Meanwhile, main frame obtains the corresponding relation of oil mass value and magnitude of voltage by the corresponding voltage signal values of oil mass in liquid level sensor collection fuel tank, complete oil mass calibration.
Refer to Fig. 1, it is the structured flowchart that oil mass provided by the invention is precisely calibrated the first embodiment of instrument.As shown in the figure, in the present embodiment, described main frame (indicating with precisely calibrating instrument main frame in figure), described electric supply installation comprises two power supplys: the first power supply being connected with main frame (in the present embodiment, described the first power supply is power supply 9-36V direct supply), and the second source being connected with electric pump (in the present embodiment, described second source is power supply 220V AC power).Described liquid level sensor is dipstick (or other liquid level sensors), and described dipstick is arranged in fuel tank.
As shown in the figure, diesel oil is under the effect of electric pump, from oil-in (indicating with oil-feed figure), flow into, the flowmeter of flowing through, and from oil-out figure, use fuel-displaced sign) flow in fuel tank, the flowmeter sensor being arranged on flowmeter collects pulse signal, and described pulse signal is sent to main frame, and main frame calculates the oil mass value that is input to fuel tank in conjunction with flowmeter transduction factor according to pulse signal frequency; Meanwhile, main frame obtains the corresponding relation of oil mass value and magnitude of voltage by the corresponding voltage signal values of oil mass in liquid level sensor collection fuel tank, complete oil mass calibration.
Further, as shown in Figure 1, described oil mass is precisely calibrated instrument and is also comprised a display screen (showing oil mass value representation with MMI in figure), for operating, controls and shows oil mass value, and described display screen is connected with main frame.
In vehicle traveling process, the voltage signal of Host Detection liquid level sensor output; Main frame, according to the magnitude of voltage detecting, is inquired about the corresponding relation of described oil mass value and magnitude of voltage, by the linearity between partial zones, calculates the oil mass value corresponding with described magnitude of voltage, and described oil mass value is oil mass corresponding to current fuel tank residual liquid level.User can understand oil mass corresponding to described current fuel tank residual liquid level in real time by display screen.
Further, can be by whole calibration process, and the corresponding relation of oil mass value and magnitude of voltage.Be uploaded to background server or high in the clouds is stored, thus, when oil mass is precisely calibrated instrument and gone wrong, can data derived and be used by background server.
Its calibration process is described in detail in detail below:
(1) Real-time Collection is worth to following:
From the liquid level sensor highly corresponding magnitude of voltage that goes back:
V[cur] = adc_voltage_get(collection->oil_adc_pipe);
From flowmeter sensor, obtain flow respective pulses, and be converted to
flowcollect = flow_pule_get(collection->oil_adc_pipe);
W[cur]=A*flowcollect; (A is flowmeter coefficient)
The constructive process of precisely calibration correspondence table,
The oil that flows through flowmeter is all encased in fuel tank, and when fuel tank is sky, the oil mass that flows through flowmeter is the corresponding flow of current liquid level in fuel tank,
So we create the corresponding table of a VW, do record:
First take i as sequence number, at liquid level sensor sensing, arrive and change precision
During i=0: V[0]=V[cur], W[0] and=W[cur];
During i>0, V[cur]-V[0] >V0:V[i]=V[i-1], W[i] and=W[i-1];
So repeat until calibration finishes, generate whole VW table.
(2) complete after calibration, use VW table to calculate current oil mass:
Highly corresponding magnitude of voltage V[cur goes back on Real-time Collection liquid level sensor], from VW table, index out corresponding i, thereby obtain current oil mass:
i = Indexes*(V[cur]);
W[cur] = W[i];
W[cur] be oil mass corresponding to current fuel tank residual liquid level.
Below by a test, verify that above-mentioned oil mass precisely calibrates instrument:
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 classifies the corresponding liquid level voltage value of liquid level sensor output, the V of unit (volt) as to above data; The 2nd classify as by flowmeter sensor, collect reach this highly corresponding flow that flows through flowmeter (being the oil mass that exists of fuel tank), the L of unit (liter).
By above-mentioned two groups of data, can obtain calibration effect schematic diagram as shown in Figure 2.As shown in the figure, horizontal ordinate is that to collect liquid level sensor output highly corresponding magnitude of voltage (being first row data), ordinate be the oil mass that fuel tank residual liquid level is corresponding (being secondary series data), and this test is to carry out on the car of Guangdong BJ7125.
Above data show:
In fuel tank bottom, there is blind area in A, liquid level sensor.
It is linear that B, liquid level and corresponding volume exist, but this linearity does not have consistance, show as top after 140L linear gradient compared with inconsistent below 140L.This phenomenon and actual conditions are coincide, and showing as fuel tank top is arcuate structure.
C, this accurate actual environment that coincide of calibrating, and solved the error that traditional modeling is introduced.
The implementation method that the present invention also provides a kind of described oil mass precisely to calibrate instrument, as shown in Figure 3, comprises the following steps:
S1, electric pump be oily oil-in suction, the oil described flowmeter sensor of flowing through, and flow into described fuel tank from oil-out;
When S2, oil flow through flowmeter sensor, sensor output pulse signal is also sent to main frame, and meanwhile, liquid level sensor obtains the voltage signal that in fuel tank, liquid level is corresponding and described voltage signal is sent to main frame, and main frame is converted to magnitude of voltage;
The process that S3, fuel tank are filled it up with from sky, main frame calculates oil mass value according to the pulse signal receiving, and the record magnitude of voltage corresponding with described oil mass value, obtains the corresponding relation of one group of oil mass value and magnitude of voltage, completes oil mass calibration.
Further, in described implementation method, also comprise step:
S4, in vehicle traveling process, liquid level sensor obtains the corresponding voltage signal of liquid level in fuel tank, and described voltage signal is sent to main frame, obtains magnitude of voltage;
S5, main frame, according to calculating gained magnitude of voltage, are inquired about the corresponding relation of described oil mass value and voltage signal, by the linearity between partial zones, calculate the oil mass value corresponding with described magnitude of voltage, and described oil mass value is oil mass corresponding to current fuel tank residual liquid level.
Further, in described implementation method, also comprise:
S6, by described display screen, show oil mass corresponding to current fuel tank residual liquid level.
The details of said method is all described in detail in oil mass is precisely calibrated instrument, here superfluous having stated no longer just.
In sum, oil mass provided by the invention is precisely calibrated instrument and its implementation, by synchronous acquisition pulse signal and voltage signal, set up the corresponding relation of fuel tank fuel quantity value and liquid level sensor magnitude of voltage, solved tradition because the error that manual operation brings, whole calibration process can complete (traditional method needs 2 ~ 3 hours) in 10 ~ 20 minutes, improved greatly efficiency, reduced the dependence to workmen, for whole industry is universal, can play good facilitation.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection domain of the appended claim of the present invention.
Claims (8)
1. oil mass is precisely calibrated an instrument, it is characterized in that, comprising: main frame, electric supply installation, flowmeter sensor, liquid level sensor and electric pump;
Described main frame connects respectively electric supply installation, flowmeter sensor and liquid level sensor, and liquid level installation of sensors is in fuel tank, and electric supply installation connects described electric pump, and electric pump is arranged between oil-in and flowmeter sensor;
Electric pump by oil from oil-in suction, the oil described flowmeter sensor of flowing through, and flowing into described fuel tank from oil-out; This flow in process flowmeter sensor output pulse signal sends it to main frame, and main frame calculates the oil mass value that is input to fuel tank in conjunction with flowmeter transduction factor according to pulse signal frequency; Meanwhile, main frame obtains the corresponding relation of oil mass value and magnitude of voltage by the corresponding voltage signal values of oil mass in liquid level sensor collection fuel tank, complete oil mass calibration.
2. oil mass according to claim 1 is precisely calibrated instrument, it is characterized in that, described electric supply installation comprises the first power supply being connected with main frame, and the second source being connected with electric pump.
3. oil mass according to claim 2 is precisely calibrated instrument, it is characterized in that, described the first power supply is 9-36V direct supply, and described second source is 220V AC power.
4. oil mass according to claim 1 is precisely calibrated instrument, it is characterized in that, described liquid level sensor is dipstick.
5. oil mass according to claim 1 is precisely calibrated instrument, it is characterized in that, also comprises a display screen for equipment operating and data demonstration, and described display screen is connected with main frame.
6. oil mass claimed in claim 1 is precisely calibrated an implementation method for instrument, it is characterized in that, comprises the following steps:
S1, electric pump be oily oil-in suction, the oil described flowmeter sensor of flowing through, and flow into described fuel tank from oil-out;
When S2, oil flow through flowmeter sensor, sensor output pulse signal is also sent to main frame, and meanwhile, liquid level sensor obtains the voltage signal that in fuel tank, liquid level is corresponding and described voltage signal is sent to main frame, and main frame is converted to magnitude of voltage;
The process that S3, fuel tank are filled it up with from sky, main frame calculates oil mass value according to the pulse signal receiving, and the record magnitude of voltage corresponding with described oil mass value, obtains the corresponding relation of one group of oil mass value and magnitude of voltage, completes oil mass calibration.
7. implementation method according to claim 6, is characterized in that, also comprises step:
S4, in vehicle traveling process, liquid level sensor obtains the corresponding voltage signal of liquid level in fuel tank, and described voltage signal is sent to main frame, obtains magnitude of voltage;
S5, main frame, according to calculating gained magnitude of voltage, are inquired about the corresponding relation of described oil mass value and voltage signal, by the linearity between partial zones, calculate the oil mass value corresponding with described magnitude of voltage, and described oil mass value is oil mass corresponding to current fuel tank residual liquid level.
8. implementation method according to claim 7, is characterized in that, also comprises:
S6, by described display screen, show oil mass corresponding to current fuel tank residual liquid level.
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| CN112944734A (en) * | 2021-03-01 | 2021-06-11 | 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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