CN102997977A - Vehicle charged oil capacity and oil product grade detection device - Google Patents
Vehicle charged oil capacity and oil product grade detection device Download PDFInfo
- Publication number
- CN102997977A CN102997977A CN2012101867113A CN201210186711A CN102997977A CN 102997977 A CN102997977 A CN 102997977A CN 2012101867113 A CN2012101867113 A CN 2012101867113A CN 201210186711 A CN201210186711 A CN 201210186711A CN 102997977 A CN102997977 A CN 102997977A
- Authority
- CN
- China
- Prior art keywords
- oil
- end cap
- oil product
- tongue tube
- tube sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a vehicle charged oil capacity and oil product grade detection device, comprising an oil storage tank, an end cap, a reed pipe sensor, a capacitive sensor and a displayer, wherein an oil inlet hole is formed in the end cap; moreover, the end cap is arranged in the oil storage tank in a covering manner; the upper ends of the reed pipe sensor and the capacitive sensor are fixedly arranged on the end cap; the lower ends of the reed pipe sensor and the capacitive sensor are inserted into the oil storage tank; in such a way, the reed pipe sensor and the capacitive sensor are used for detecting the liquid level and the voltage respectively for the reflection of charged oil capacity and oil product grade; and moreover, the output ends of the reed pipe sensor and the capacitive sensor are connected to the displayer through a conductive wire for the display of measurement results. The detection device can measure the charged oil capacity and the charged oil grade fast and precisely so as to have quite high application values, and further has the advantages of simple structure, low cost, stable performance, intuition in display and the like.
Description
Technical field
The invention belongs to checkout equipment, especially relate to a kind of group refueling amount and oil product label pick-up unit.
Background technology
Petroleum product has been deep in our daily life now, no matter they are all playing the part of important role in medical science, chemical industry and new material exploitation, wherein close with us has been gasoline.According to South Daily, April 13, refueled the Mrs Qiu refuelling station, South Lake, Gaozhou county of driving, and I had never expected that 280.04 yuan No. 93 " gasoline " adding only have 60 yuan to be pure gasoline, and remaining is water unexpectedly entirely.Report that again the time and again water mixing in the gasoline of a refuelling station of Zhengzhou High-tech Industrial Development Zone not only makes the car owner pay for oily money, therefore engine also may damage.And in recent years along with the rise at full speed of oil price, be further intensified especially in order to obtain larger interests in those evil mind refuelling stations, so that the generation of this type of event is more and more frequent.By the observation in the daily life and analysis, cause the basic reason of this type of event to be that the design of automobile tradition fuel tank is unreasonable, this irrational design is not so that the car owner has clear and definite right to know to vehicle institute volume read-out, add gasoline actual label just said nothing of.
For this reason, in the urgent need to designing a cover pick-up unit, the oil mass of refueling in order to accurate survey vehicle, simultaneously can also fast detecting go out add the label of oil product.
Summary of the invention
Technical matters to be solved by this invention provides a kind of group refueling amount and oil product label pick-up unit, can accurately survey the oil mass that vehicle refuels, and can also fast detecting go out add the label of oil product.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of group refueling amount and oil product label pick-up unit, comprise fuel reserve tank, end cap, tongue tube sensor, capacitive transducer and display, end cap is provided with into porose and be covered in the fuel reserve tank, the upper end of tongue tube sensor and capacitive transducer is fixedly arranged on the end cap, the lower end is inserted respectively in the fuel reserve tank, reflect volume read-out and oil product label in order to detect respectively liquid level and voltage, and the output terminal of tongue tube sensor and capacitive transducer is connected to display by wire, in order to the display measurement result.
Described tongue tube sensor comprises by many single tongue tubes and is connected in series the pipe shaft that consists of and is sheathed on float on the pipe shaft, float is with liquid surface lifting in the fuel reserve tank, and triggers corresponding liquid level.
Describedly advance the porose funnel-form that is.
Described end cap top also is provided with terminal box, and the upper end of described tongue tube sensor and capacitive transducer and wire interconnecting piece divide and be sealed in the terminal box.
Adopt group refueling amount of the present invention and oil product label pick-up unit, have following advantage:
1. can measure oil mass and the label of oiling fast accurate, have very high using value.
2. simple in structure, with low cost, stable performance.
Intuitive display, make things convenient for reading.
Description of drawings
The present invention is elaborated below in conjunction with the drawings and specific embodiments:
Fig. 1 is the structural representation of group refueling amount of the present invention and oil product label pick-up unit.
Fig. 2 is a part of control circuit figure of tongue tube sensor of the present invention.
Fig. 3 is another part control circuit figure of tongue tube sensor of the present invention.
Fig. 4 is the level gauging circuit diagram of main circuit of the present invention.
Fig. 5 is a part of control circuit figure of capacitive transducer of the present invention.
Fig. 6 is another part control circuit figure of capacitive transducer of the present invention.
Fig. 7 is the power circuit diagram of main circuit of the present invention.
Fig. 8 is the gasoline label testing circuit figure of main circuit of the present invention.
Embodiment
As shown in Figure 1, group refueling amount of the present invention and oil product label pick-up unit mainly comprise fuel reserve tank 1, end cap 2, tongue tube sensor 3, capacitive transducer 4 and display 5, end cap 2 is provided with and is funnelform and advances porose 6 and be covered in the fuel reserve tank 1, the upper end of tongue tube sensor 3 and capacitive transducer 4 is fixedly arranged on the end cap 2, insert respectively in the fuel reserve tank 1 lower end, reflect volume read-out and oil product label in order to detect respectively liquid level and voltage, and the output terminal of tongue tube sensor 3 and capacitive transducer 4 is connected to display 5 by wire 7, in order to the display measurement result.Described tongue tube sensor 3 comprises by many single tongue tubes and is connected in series the pipe shaft that consists of and is sheathed on float 8 on the pipe shaft, float 8 is with fuel reserve tank 1 interior liquid surface lifting, and triggers corresponding liquid level.Compare with general pressure transducer, select tongue tube sensor 3 to have fabulous degree of accuracy, not affected by environment, even the temperature of gasoline can constantly raise with vehicle operating in the car, can not affect its measuring accuracy yet.Described end cap 2 tops also are provided with terminal box 9, and the upper end of described tongue tube sensor 3 and capacitive transducer 4 and wire 7 coupling parts are sealed in the terminal box 9.So, can avoid tongue tube sensor 3 and capacitive transducer 4 all to be immersed in the oil, cause potential safety hazard thereby introduce charged element.
The circuit design of pick-up unit of the present invention is divided into three parts: motherboard circuit, tongue tube sensor control circuit and capacitive transducer 4 control circuits.Motherboard circuit comprises again power circuit, level gauging circuit and gasoline label testing circuit three parts.
See also shown in Figure 2, take the 7 end to end formation tongue tube of tongue tube sensors as example, comprise the resistance R 1-R6 that 7 head and the tail are in series by its liquid level detection circuit that consists of, R10, between resistance all and be connected to a normal open switch S1-S7, the S1-S7 other end all is connected to by R7, the smoothing circuit that C1 consists of, when float raises along with oil level and rises, closed difference is divided the switch S 1-S7 of piezoelectricity simultaneously, and the signal output of different minute piezoelectricity, and make the voltage rising by smoothing circuit, thereby directly change another numerical value into by a numerical value in the time of can avoiding the display registration.
Please in conjunction with shown in Figure 3, smoothing circuit inputs to respectively voltage buffer and voltage analog device with the signal of different dividing points.The voltage analog device is in order to strengthen the driving force of signal; Voltage comparator is that voltage and the reference voltage that will export compare, when the oil mass that adds surpasses setting range, when namely exceeding the maximum magnitude that tongue tube can detect, the voltage of exporting at this moment is greater than reference voltage, voltage comparator is derived high level signal, triggers simultaneously the level gauging circuit.
Please in conjunction with shown in Figure 4, when smoothing circuit inputs to the voltage analog device with the signal of different dividing points, the voltage analog device strengthens after the driving force of signal the level gauging circuit that signal is inputed in the motherboard circuit, consists of a monostable circuit.This level gauging circuit comprises the monostable circuit chip of 74CH123 type, can access a regular time parameter 4s by resistance R 10, capacitor C 4, and monostable circuit is triggered when oil level surpasses peak, and hummer continues the 4s that pipes, and stops behind the 4s piping.If still pour gasoline into this moment in device, monostable circuit is triggered again, and hummer continues the 4s that pipes
See also shown in Figure 5ly, the control circuit of capacitive transducer has used the 74HC4046 cake core, and it mainly is made of voltage controlled oscillator (VCO) and frequency comparator.C7 is local oscillator electric capacity, and setting value is 100 pico farads; If electric capacity between pole plate is designated as the C pole plate, C=C7+C pole plate then, wherein C7 and R1, R2 consist of RC concussion, i.e. voltage controlled oscillator.By voltage controlled oscillator output frequency be denoted as fRC.Wherein fRC is directly proportional with input voltage.Active crystal oscillator is linked to each other with 14 interfaces of chip, and wherein active crystal oscillator setting value is 100MHz, is denoted as f0.Frequency comparator compares fRC and f0 and export, and output valve equals │ fRC-f0 │, is denoted as V0.When not adding any medium between two-plate, this moment, output voltage was 1V, and this is worth the namely specific inductive capacity of air, is denoted as the V air.If add gasoline in container, fRC reduces, thereby f0＞fRC. is so that │ fRC-f0 │ value becomes large at this moment, and namely the V0 value becomes large.Because fRC is directly proportional with input voltage, so along with the V0 value becomes large, fRC also becomes large and again inputs to frequency comparator and active crystal oscillator compares.This step circuit circulation running, until fRC equals active crystal oscillator 1MHz, this wherein the variable quantity of voltage be designated as Δ V, so V oil=1V+ Δ V. Δ V difference when adding the gasoline of different labels, so circuit can be told the gasoline of different labels.
Please in conjunction with shown in Figure 6, by testing to such an extent that the mean value of V93# oil is 2.5V, the mean value of V97# oil is 2.8V.Because empirical value is comparatively approaching, therefore in last minute circuit, increased a differential amplifier, and to set VW1 be 2V, the wherein gain of differential amplifier
Computing formula is: the * G of V output=(V0-VW1).Calculate according to this formula, the * 4.7=2.42V of V 93# gasoline output=(2.5V-2V), the * 4.7=3.76V of V 97# gasoline output=(2.8V-2V), difference is obvious.Obtained rule through many experiments, and finished thus the later stage circuit of capacitive transducer: what output voltage values surpassed 3.5V is 97# gasoline, is 93# gasoline between 2V and 3.5V.
See also shown in Figure 7ly, the power circuit of motherboard circuit mainly comprises power supply BT1, interrupteur SW 1 and a mu balanced circuit that is made of 78X X series voltage stabilizing chip, when input voltage during more than or equal to 9V, sets output voltage and equals all the time 5V.
See also shown in Figure 8, capacitive transducer 4 can be differentiated 93# gasoline and 97# gasoline, but this only is an analog quantity, how to make this analog quantity change digital quantity into? in the gasoline label testing circuit, mainly use two voltage comparators and a gated buffer.Capacitive transducer 4 inputs to respectively the high low-voltage place of motherboard circuit with the gained signal, and the voltage comparator at two places compares input signal and reference signal, and wherein the reference signal at low-voltage place is 2V, and the reference signal at high voltage place is 4V.If input signal is greater than reference signal, then voltage comparator is exported high level signal, the circuit voltage 5V that namely sets; If less than reference signal, then the voltage comparator output signal is 0. by this principle, if when adding 93# gasoline in the circuit (input voltage is 2.42V), the voltage comparator at the low place of pressing is output as 5V, the voltage comparator at the height place of pressing is output as 0, so LED display shows 93# gasoline; If but what add is 97# gasoline, then can show simultaneously 93# gasoline and 97# gasoline on the display screen, this is obviously unreasonable, so I have added again gated buffer in circuit.Gated buffer compares the magnitude of voltage of the height place of pressing input, and the side that registration is larger output.Signal driver triode after the output is so that LED display shows correct gasoline label.At first take 93# gasoline as example, when 2.42V voltage inputs to respectively the voltage comparator at high low-voltage place, high voltage comparer output 0V opens the gate-control signal of gated buffer, so that low spot presses the output signal of comparer by 74HC125 type gated buffer, output rear drive triode T1 makes LED display show 93# gasoline; Because the high voltage comparer is output as 0, can not drive triode, so display screen can't show 97# gasoline.Again take 97# gasoline as example, when inputting 3.76V respectively to high low-voltage comparator, high low-voltage comparator is exported high level signal simultaneously, and this moment, the height place of pressing closed gate-control signal, so that the low place of pressing can't drive triode, and the height place of pressing driving triode makes display screen show 97# gasoline
In sum, in today that oil price rapidly goes up, adopt pick-up unit of the present invention can make the car owner that gasoline is had clear and definite right to know, at utmost avoid some illegal refuelling stations to embezzle part of what should be issued gasoline for obtaining more interests, even the generation of this event of water mixing in oil.Arrive above-mentioned purpose by tongue tube sensor 3 and capacitive transducer 4, measure fast accurate, have very high using value.In addition, cheap, the stable performance of this installation cost, and has a higher security, can be installed in the place of any loading gasoline, by the current real-time oil quantity of being converted to of electronic sensing device and add the label of gasoline, and measurement result shows with numeral on LCDs, can make the car owner that oil product, the oil mass of gasoline that vehicle adds are had intuitively understanding.
But, those of ordinary skill in the art will be appreciated that, above embodiment illustrates the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.
Claims (4)
1. a group refueling amount and oil product label pick-up unit is characterized in that:
Comprise fuel reserve tank, end cap, tongue tube sensor, capacitive transducer and display, end cap is provided with into porose and be covered in the fuel reserve tank, the upper end of tongue tube sensor and capacitive transducer is fixedly arranged on the end cap, the lower end is inserted respectively in the fuel reserve tank, reflect volume read-out and oil product label in order to detect respectively liquid level and voltage, and the output terminal of tongue tube sensor and capacitive transducer is connected to display by wire, in order to the display measurement result.
2. group refueling amount according to claim 1 and oil product label pick-up unit, it is characterized in that: described tongue tube sensor comprises by many single tongue tubes and is connected in series the pipe shaft that consists of and is sheathed on float on the pipe shaft, float is with liquid surface lifting in the fuel reserve tank, and triggers corresponding liquid level.
3. group refueling amount according to claim 1 and oil product label pick-up unit is characterized in that: describedly advance the porose funnel-form that is.
4. group refueling amount according to claim 1 and oil product label pick-up unit, it is characterized in that: described end cap top also is provided with terminal box, and the upper end of described tongue tube sensor and capacitive transducer and wire interconnecting piece divide and are sealed in the terminal box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101867113A CN102997977A (en) | 2012-06-07 | 2012-06-07 | Vehicle charged oil capacity and oil product grade detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101867113A CN102997977A (en) | 2012-06-07 | 2012-06-07 | Vehicle charged oil capacity and oil product grade detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102997977A true CN102997977A (en) | 2013-03-27 |
Family
ID=47926839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101867113A Pending CN102997977A (en) | 2012-06-07 | 2012-06-07 | Vehicle charged oil capacity and oil product grade detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102997977A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174182A (en) * | 2015-08-11 | 2015-12-23 | 苏州优谱德精密仪器科技有限公司 | Liquid chemical material detecting tank |
| CN108036840A (en) * | 2017-11-30 | 2018-05-15 | 四川泛华航空仪表电器有限公司 | A kind of multifunction digital capacitance fuel-quantity transducer |
| CN109624697A (en) * | 2019-01-28 | 2019-04-16 | 陈少洋 | A kind of SCM Based group refueling intelligent reminding device |
| CN111595366A (en) * | 2020-05-14 | 2020-08-28 | 山东清沂山石化科技有限公司 | Oil information automatic display equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2704829Y (en) * | 2004-06-03 | 2005-06-15 | 汪平 | Dry-reed pipe matrix micro-consumption flowmeters |
| EP1582848A1 (en) * | 2004-04-02 | 2005-10-05 | Hectronic Ag | Method and apparatus for testing the type and the quality of a liquid in a tank |
| CN1912607A (en) * | 2006-07-07 | 2007-02-14 | 南京大学 | Portable gasoline grade measuring method and instrument of using locking method |
| CN201126431Y (en) * | 2007-11-27 | 2008-10-01 | 西安天厚电子技术有限责任公司 | Detection apparatus for gasoline octane rating |
| CN202033080U (en) * | 2010-12-01 | 2011-11-09 | 青岛盛瀚色谱技术有限公司 | Ion chromatogram gas-liquid separation alarming mechanism |
| CN202033081U (en) * | 2011-02-22 | 2011-11-09 | 哈尔滨华良科技有限公司 | Portable water level and water temperature measurement instrument |
-
2012
- 2012-06-07 CN CN2012101867113A patent/CN102997977A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1582848A1 (en) * | 2004-04-02 | 2005-10-05 | Hectronic Ag | Method and apparatus for testing the type and the quality of a liquid in a tank |
| CN2704829Y (en) * | 2004-06-03 | 2005-06-15 | 汪平 | Dry-reed pipe matrix micro-consumption flowmeters |
| CN1912607A (en) * | 2006-07-07 | 2007-02-14 | 南京大学 | Portable gasoline grade measuring method and instrument of using locking method |
| CN201126431Y (en) * | 2007-11-27 | 2008-10-01 | 西安天厚电子技术有限责任公司 | Detection apparatus for gasoline octane rating |
| CN202033080U (en) * | 2010-12-01 | 2011-11-09 | 青岛盛瀚色谱技术有限公司 | Ion chromatogram gas-liquid separation alarming mechanism |
| CN202033081U (en) * | 2011-02-22 | 2011-11-09 | 哈尔滨华良科技有限公司 | Portable water level and water temperature measurement instrument |
Non-Patent Citations (1)
| Title |
|---|
| 李思维: "基于电容传感器的汽油辛烷值检测系统研究", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174182A (en) * | 2015-08-11 | 2015-12-23 | 苏州优谱德精密仪器科技有限公司 | Liquid chemical material detecting tank |
| CN108036840A (en) * | 2017-11-30 | 2018-05-15 | 四川泛华航空仪表电器有限公司 | A kind of multifunction digital capacitance fuel-quantity transducer |
| CN109624697A (en) * | 2019-01-28 | 2019-04-16 | 陈少洋 | A kind of SCM Based group refueling intelligent reminding device |
| CN111595366A (en) * | 2020-05-14 | 2020-08-28 | 山东清沂山石化科技有限公司 | Oil information automatic display equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101738240B (en) | Capacitance sensing type fuel meter | |
| CN102997977A (en) | Vehicle charged oil capacity and oil product grade detection device | |
| CN102778268B (en) | Integrated measurement system for indirectly measuring oil consumption of vehicular fuel oil | |
| CN102778269B (en) | Comprehensive measuring system for directly measuring oil consumption of vehicle fuel | |
| CN104266712A (en) | Liquid height measurement method and device based on capacitive sensor | |
| CN201672957U (en) | Automobile fuel meter digitalized device | |
| CN101509883A (en) | Engine oil detector | |
| CN104848915A (en) | Implementation method of capacitance liquid level sensor with high accuracy, self-adaptation performance and large measurement range | |
| CN102980634A (en) | Reed switch transducer control circuit for liquid-level measurement purpose | |
| CN202648759U (en) | Liquid level measuring circuit for refueling vehicle | |
| CN202750071U (en) | Capacitance sensor control circuit used for vehicle refueling | |
| CN206475739U (en) | Bleeder plug, oil mass detection device and vehicle | |
| CN202649159U (en) | Octane rating measuring circuit | |
| CN202735293U (en) | Power circuit for vehicle refueling detection | |
| CN201382799Y (en) | Capacity transduction type fuel oil metering instrument | |
| CN103575365B (en) | Liquid level is taken into account vehicle-mounted LNG gas cylinder | |
| CN103344300A (en) | Detection device of oil-water interface position and detection method thereof | |
| CN203037310U (en) | Liquid level detection device for fuel tank of automobile | |
| CN204963949U (en) | Digital fuel quantity sensor of intelligence | |
| CN203587151U (en) | Ultrasonic open-channel meter | |
| CN208383172U (en) | A kind of tank capacity detection device | |
| CN203100819U (en) | Automobile fuel quantity measuring device | |
| CN202974386U (en) | Fuel gauging device of fuel tank | |
| CN204495427U (en) | A kind of digital Level meter | |
| CN201795833U (en) | Capacitance type sensor for liquid level detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |