CN203274858U - Automobile oil level measuring device - Google Patents
Automobile oil level measuring device Download PDFInfo
- Publication number
- CN203274858U CN203274858U CN 201320301661 CN201320301661U CN203274858U CN 203274858 U CN203274858 U CN 203274858U CN 201320301661 CN201320301661 CN 201320301661 CN 201320301661 U CN201320301661 U CN 201320301661U CN 203274858 U CN203274858 U CN 203274858U
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- oil level
- circuit
- automobile
- single chip
- oil
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Abstract
The utility model relates to an automobile oil level measuring device which comprises an oil level monitoring circuit, an oil shortage warning circuit, a single chip microcomputer control circuit and an RS 485 communication port module. Output signals of the oil level monitoring circuit are transmitted to the oil shortage warning circuit and the single chip microcomputer control circuit respectively. An output signal of the single chip microcomputer control circuit is transmitted to the RS 485 communication port module. The automobile oil level measuring device can vividly, accurately and visually display the amount of fuel in an automobile oil tank and after judgment of the single chip microcomputer control circuit, a PLC control system transmits the amount of fuel to an automobile dashboard for displaying the current oil level state to remind a driver of refueling in time.
Description
Technical field
The utility model relates to a kind of measurement mechanism, particularly be a kind of automobile oil level measurement mechanism.
Background technology
Be provided with the oil level Displaying Meter on automobile instrument panel, but the demonstration of this instrument is mostly very rough, can't accurately shows oil level, when oil level in fuel tank is low, also can't remind.
The utility model content
The purpose of this utility model is to provide a kind of accurate demonstration oil level state, and can the timely automobile oil level measurement mechanism that refuels of reminding driver.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of automobile oil level measurement mechanism, include oil level observation circuit, oil starvation warning circuit, single chip machine controlling circuit and RS485 communication interface modules, the output signal of described oil level observation circuit is transferred to respectively oil starvation warning circuit and single chip machine controlling circuit, and the output signal of described single chip machine controlling circuit is sent to the RS485 communication interface modules.
Described oil level observation circuit adopts the float-type potentiometer RP2 that is located at the buoy control that is connected in series with the instrument panel fuel contents gauge in automotive oil tank as horizontal detector, the auxiliary potentiometer RP1 of described float-type potentiometer RP2 series connection, the output terminal of described float-type potentiometer RP2 is connected to transistor V2-V7 successively, and the output terminal of described auxiliary potentiometer RP1 is connected with diode VD2.
Described oil starvation warning circuit by the time basis set LED 1, transistor V1, diode VD3 and the loudspeaker BL that become module I C2 and output terminal thereof to connect consist of.
Described RS485 communication interface modules is sent to the PLC control system by 75176 communication module IC3, and shows current oil level state by automobile instrument panel.
By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: the utility model can demonstrate the amount of fuel in automotive oil tank vivid, accurately, intuitively, after judging by single chip machine controlling circuit, reach automobile instrument panel by the PLC control system and show current oil level state, in time refuel with reminding driver.
Description of drawings
Fig. 1 is frame assumption diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Further illustrate the utility model below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, a kind of automobile oil level measurement mechanism of the present utility model, include oil level observation circuit 1, oil starvation warning circuit 2, single chip machine controlling circuit 3 and RS485 communication interface modules 4, the output signal of described oil level observation circuit 1 is transferred to respectively oil starvation warning circuit 2 and single chip machine controlling circuit 3, and the output signal of described single chip machine controlling circuit 3 is sent to RS485 communication interface modules 4.
Described oil level observation circuit 1 adopts the float-type potentiometer RP2 that is located at the buoy control that is connected in series with the instrument panel fuel contents gauge in automotive oil tank as horizontal detector, the auxiliary potentiometer RP1 of described float-type potentiometer RP2 series connection, the output terminal of described float-type potentiometer RP2 is connected to transistor V2-V7 successively, and the output terminal of described auxiliary potentiometer RP1 is connected with diode VD2.
Described oil starvation warning circuit 2 by the time basis set LED 1, transistor V1, diode VD3 and the loudspeaker BL that become module I C2 and output terminal thereof to connect consist of.
Described RS485 communication interface modules 4 is sent to the PLC control system by 75176 communication module IC3, and shows current oil level state by automobile instrument panel.
Oil mass is reduced to a half in fuel tank, the center of float-type potentiometer RP2 slides to the centre position, make transistor V2-V4 conducting, transistor V5-V7 cut-off, all be noble potential output, this signal is input to respectively the 22nd, 21,33,35,38,39 ends of single-chip microcomputer IC1, after single-chip microcomputer IC1 identification, send control signal and drive 75176 communication module IC3, after 75176 communication module IC3 inner decoding, reach the PLC control system through the RS485 bus, and show current oil level state by automobile instrument panel.
When storing up full fuel oil in automotive oil tank, the resistance of float-type potentiometer RP2 slides to minimum value under the effect of buoy, make the equal conducting of transistor V2-V7, after single-chip microcomputer IC1 identification, send control signal and drive 75176 communication module IC3, after 75176 communication module IC3 inner decoding, reach the PLC control system through the RS485 bus, and show current oil level state by automobile instrument panel.
When oil level in fuel tank is reduced to when spacing, the resistance of float-type potentiometer RP2 becomes maximal value, make transistor V1 conducting, the time basis set become the 4th pin of module I C2 to become high level by low level, by the time basis set become the multivibrator vibration that module I C2 and peripheral component form (frequency of operation is the 10Hz left and right) work, the time basis set become the 3rd pin of module I C2 to be interrupted the output high level, make LED 1 glittering, loudspeaker BL send " pout, pout ... ... " chimes of doom.
Above-described is only a preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented, and every equalization of doing according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.
Claims (4)
1. automobile oil level measurement mechanism, it is characterized in that: include oil level observation circuit (1), oil starvation warning circuit (2), single chip machine controlling circuit (3) and RS485 communication interface modules (4), the output signal of described oil level observation circuit (1) is transferred to respectively oil starvation warning circuit (2) and single chip machine controlling circuit (3), and the output signal of described single chip machine controlling circuit (3) is sent to RS485 communication interface modules (4).
2. a kind of automobile oil level measurement mechanism according to claim 1, it is characterized in that: described oil level observation circuit (1) adopts the float-type potentiometer RP2 that is located at the buoy control that is connected in series with the instrument panel fuel contents gauge in automotive oil tank as horizontal detector, the auxiliary potentiometer RP1 of described float-type potentiometer RP2 series connection, the output terminal of described float-type potentiometer RP2 is connected to transistor V2-V7 successively, and the output terminal of described auxiliary potentiometer RP1 is connected with diode VD2.
3. a kind of automobile oil level measurement mechanism according to claim 1 and 2 is characterized in that: described oil starvation warning circuit (2) by the time basis set LED 1, transistor V1, diode VD3 and the loudspeaker BL that become module I C2 and output terminal thereof to connect consist of.
4. a kind of automobile oil level measurement mechanism according to claim 1 and 2, it is characterized in that: described RS485 communication interface modules (4) is sent to the PLC control system by 75176 communication module IC3, and shows current oil level state by automobile instrument panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320301661 CN203274858U (en) | 2013-05-29 | 2013-05-29 | Automobile oil level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320301661 CN203274858U (en) | 2013-05-29 | 2013-05-29 | Automobile oil level measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203274858U true CN203274858U (en) | 2013-11-06 |
Family
ID=49505242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320301661 Expired - Fee Related CN203274858U (en) | 2013-05-29 | 2013-05-29 | Automobile oil level measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203274858U (en) |
-
2013
- 2013-05-29 CN CN 201320301661 patent/CN203274858U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20140529 |