CN201170741Y - Oil mass sensing system architecture - Google Patents
Oil mass sensing system architecture Download PDFInfo
- Publication number
- CN201170741Y CN201170741Y CNU2008201014800U CN200820101480U CN201170741Y CN 201170741 Y CN201170741 Y CN 201170741Y CN U2008201014800 U CNU2008201014800 U CN U2008201014800U CN 200820101480 U CN200820101480 U CN 200820101480U CN 201170741 Y CN201170741 Y CN 201170741Y
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- car
- oil mass
- fuel
- quantity transducer
- mounted terminal
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Abstract
The utility model provides an oil quality sensing and monitoring system architecture which comprises a vehicle interior circuit, an oil quality sensor, a GPS vehicle terminal and a background monitoring system that are connected. The oil quality sensor is respectively connected with the vehicle interior circuit and the external GPS vehicle terminal. The oil quality sensor is used for collecting the signal value of the oil quality liquid level height in the vehicle and is real-timely transmitted to the GPS vehicle terminal for the corresponding complex operation processing. The operational result is transmitted to the background monitoring system through wireless network. The corresponding taxonomic revision is implemented on data by the background monitoring system to format a simple and direct visible chart finally. Clients can download relative chart data from a monitoring center for checking conveniently just through locally installing a client monitoring working station program and accessing to the internet, which is very convenient.
Description
[technical field]
The utility model relates to a kind of vehicle-mounted accessory, the fuel-quantity transducer of oil mass in particularly a kind of machines motor vehicle fuel tank.
[background technology]
This product is vehicle-mounted accessory, and function is the oil consumption state of detecting vehicle.Present automobile oil gauge is all detected the height variation of oil mass liquid level in the fuel tank by " buoy " is installed in the fuel tank." buoy " itself is a slide rheostat, and the height of oil mass liquid level changes the swivel arm that drives " buoy " and swings up and down, thereby realizes the function of standardsizing rheostat resistance.The voltage that the resistance that this product changes by " buoy " in the fuel tank exactly changes is judged the height of oil mass liquid level in the fuel tank.
[summary of the invention]
The technical problems to be solved in the utility model, be to provide a kind of oil mass sensor-based system framework, fuel-quantity transducer by special setting is connected circuit in the car with GPS car-mounted terminal and background monitoring system, utilize powerful computing of GPS car-mounted terminal and background monitoring system and monitoring capacity to monitor the oil mass in the fuel tank in the car in real time, very convenient.
The utility model is to realize like this, a kind of oil mass sensor-based system framework, comprise circuit, fuel-quantity transducer, GPS car-mounted terminal and background monitoring system in the car, circuit, fuel-quantity transducer, GPS car-mounted terminal connect in turn in the described car, and described GPS car-mounted terminal links to each other with described background monitoring system by wireless network again.
The technical solution of the utility model further is specially: circuit comprises an oil mass float and an automobile battery in the described car, this oil mass float connects the swing arm that can swing with oil mass liquid level height, described oil mass float is also drawn two lead-in wires, one lead-in wire joins with the automobile battery negative pole, another root is received the automobile battery positive pole by a divider resistance, connects a lead-in wire between this divider resistance and the oil mass float and links to each other with described fuel-quantity transducer.
Described fuel-quantity transducer comprises shell, input and output lead-in wire and control circuit board, described control circuit board is provided with A/D sample conversion circuit and processor of single chip computer, the input end of described A/D sample conversion circuit connects described input and output lead-in wire, output terminal connects described processor of single chip computer, and described processor of single chip computer is connected to the GPS car-mounted terminal again.
The control circuit board of described fuel-quantity transducer also is provided with a voltage follower, this voltage follower comprises two input end ADC_12V and ADC_24V, wherein ADC_12V is and the corresponding fuel-quantity transducer incoming line of 12V car system, ADC_24V is and the corresponding fuel-quantity transducer incoming line of 24V car system that described A/D sample conversion circuit comprises two input end IN1 and IN2; Described input end ADC_12V is connected in series the in-phase end of a resistance R 33 to operational amplifier U12-A, amplifier U12-A in-phase end more respectively with automobile battery negative pole and connecting resistance R34, voltage stabilizing diode D3, capacitor C 7 and C9, the backward end of amplifier U12-A links to each other with amplifier U12-A output terminal, and is connected to the input end IN1 of described A/D sample conversion circuit; Described input end ADC_24V is connected in series the in-phase end of a resistance R 36 to operational amplifier U12-B, amplifier U12-B in-phase end more respectively with automobile battery negative pole and connecting resistance R37, voltage stabilizing diode D4, capacitor C 20 and C22, the backward end of amplifier U12-B links to each other with the output terminal of amplifier U12-B, and is connected to the input end IN2 of described A/D sample conversion circuit.
Described GPS car-mounted terminal comprises a car-mounted terminal main frame and a processor, and the car-mounted terminal main frame connects as fuel-quantity transducer and processor, and this processor connects the supervisory system on described backstage again via wireless network.
Described background monitoring system comprises Surveillance center and monitor workstation, and described Surveillance center links to each other with the GPS car-mounted terminal by wireless network, also links to each other with described monitor workstation by the Internet
Advantage in the utility model is: described fuel-quantity transducer is as the part of the vehicle-mounted accessory of GPS, by with car in relevant oil circuit circuit connect, the Fuel Oil Remaining information of the current vehicle of collection that can be real-time, and utilize the powerful data-handling capacity of GPS car-mounted terminal, the oil mass information that fuel-quantity transducer is gathered is analysed in depth.Its analysis result can be passed to supervisory system by wireless network (GSM/GPRS/CDMA/3G), supervisory system is by improving friendly human-computer interaction function, and rely on powerful hardware handles platform to finish last mass data statement analysis and arrangement, thereby finish whole operation, at last with the chart interface display of straightforward in face of the terminal user.The utility model is realized the variation of monitoring vehicle oil mass constantly, handled easily, visual and understandable with the accurate data analysis.
[description of drawings]
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 is the utility model oil mass sensor-based system architectural configurations synoptic diagram.
Fig. 2 is the circuit connection diagram of the voltage follower of the utility model fuel-quantity transducer.
Fig. 3 is the principle of work schematic flow sheet of the utility model oil mass sensor-based system framework.
[embodiment]
Seeing also illustrated in figures 1 and 2ly, is the utility model oil mass sensor-based system architectural configurations synoptic diagram.Mainly comprise circuit 1, fuel-quantity transducer 2, GPS car-mounted terminal 3 and 4 four parts of background monitoring system in the car, circuit 1, fuel-quantity transducer 2, GPS car-mounted terminal 3 connect in turn in the described car, and described GPS car-mounted terminal 3 links to each other with described background monitoring system 4 by wireless network again.
Fuel-quantity transducer 2 of the present utility model places in the car, comprise shell, be used to connect the input and output lead-in wire (not shown) and the control circuit board of circuit 1 in the described car, described control circuit board is provided with 3 main functional modules, be respectively voltage follow 21, A/D sample conversion circuit 22 and processor of single chip computer 23, the input end of described A/D sample conversion circuit 22 connects described input and output lead-in wire by voltage follower 21, output terminal connects described processor of single chip computer 23, and described processor of single chip computer 23 is connected to GPS car-mounted terminal 3 again.These fuel-quantity transducer 2 its each several part circuit structures and function are as described below:
Voltage follower 21: now the car electricity of vehicle on the market is generally two kinds of 12V or 24V, therefore realize the wildcard of the utility model and above-mentioned two kinds of vehicles, in described fuel-quantity transducer 2, establish a described voltage follower 21, described voltage follower 21 is at two kinds of cars systems of 12V or 24V different divider resistance proportionings to be set, it is mainly realized by operational amplifier, physical circuit connects as shown in Figure 2, described voltage follower 21 comprises two input end ADC_12V and ADC_24V, wherein ADC_12V is and the corresponding fuel-quantity transducer incoming line of 12V car system, and ADC_24V is and the corresponding fuel-quantity transducer incoming line of 24V car system.Be corresponding with voltage follower 21 simultaneously, described A/D sample conversion circuit also is provided with two input end IN1 and IN2.
A/D sample conversion circuit 22: above-mentioned A/D sample conversion circuit 22 can be realized the analog signal conversion digital signal of the oil mass voltage of input is transferred to processor of single chip computer 23 by the SPI communication interface again, handles for the back level system;
Processor of single chip computer 23: above-mentioned processor of single chip computer 23 main realizations are carried out logic control to the chip of A/D sample conversion circuit 22, and carry out handling with the up-downgoing communication of car-mounted terminal 3, promptly realize the master control to the oil mass adapter.
GPS car-mounted terminal 3 of the present utility model comprises a car-mounted terminal main frame 31, car-mounted terminal main frame 31 is connecting various vehicle-mounted accessories, such as fuel-quantity transducer 2, the various data of vehicle focus on by GPS car-mounted terminal 31, and result is passed to the supervisory system 4 on backstage again via wireless network (GSM/GPRS/CDMA/3G).
4 of background monitoring systems of the present utility model comprise Surveillance center 41 and monitor workstation 42, and the two links to each other by the Internet, and its function is as described below:
Surveillance center 41: described Surveillance center is by wireless network (GSM/GPRS/CDMA/3G) and 3 communications of GPS car-mounted terminal, and Surveillance center 41 receives the various data messages that GPS car-mounted terminal 3 is passed back simultaneously.Therefore the fuel-quantity transducer 2 vehicle oil mass data of gathering just can be passed Surveillance center 41 back through the GPS car-mounted terminal and carry out relevant treatment.
Monitor workstation 42: described monitor workstation 42 is a user side, and from the required data of Surveillance center's download user (such as the oil mass data), the form with visual chart offers the terminal user again by internet for it.
In conjunction with shown in Figure 3, Fig. 3 is the principle of work schematic flow sheet of the utility model oil mass sensor-based system framework again.Comprise the steps:
1, gather measuring voltage data (analog quantity): at first the oil mass float 11 in the circuit 1 contacts with oil level in the car, the height variation of oil level has driven the swing arm 12 that is connected with oil mass float 11 and has swung up and down, thereby the resistance of the feasible divider resistance 13 that links to each other with swing arm 12 changes, owing to have and move car electricity 14 (12V/24V) on the divider resistance 13 to, the voltage of circuit 1 output will change along with the variation of oil level in the car.
2, A/D conversion of signals: the output voltage of variation is defeated by A/D sample conversion circuit 22 by the voltage follower 21 in the fuel-quantity transducer 2, by A/D sample conversion circuit 22 continuous voltage analog signal is converted to discrete digital signal again, and export to processor of single chip computer 23 by its SPI interface.
3, relatively judge: 23 pairs of digital signals of processor of single chip computer are carried out simple and easy logic determines with the threshold value up and down that configures, and outside the threshold value, then get back to the first step and gather voltage data again about being in as if digital signal; If within the threshold value, then will handle the back and pass to GPS car-mounted terminal 3 to carry out more deep algorithm process about digital signal is in by standard serial port.
4, data are further handled: the oil mass data that fuel-quantity transducer 2 is gathered are passed to the Surveillance center 41 of background monitoring system 4 by wireless network (GSM/GPRS/CDMA/3G), 41 pairs of data of Surveillance center classify, regular, and form straightforward statistical graph or record.
5, display result: monitor workstation 42 is by improving friendly human-computer interaction function, and straightforward statistical graph or record are presented in face of the terminal user.
In sum, the utility model is by fuel-quantity transducer, and GPS car-mounted terminal and background monitoring system realize monitoring constantly the variation of oil mass, handled easily, visual and understandable with the accurate data analysis.
Claims (6)
1, a kind of oil mass sensor-based system framework, comprise circuit in the car, it is characterized in that: also comprise fuel-quantity transducer, GPS car-mounted terminal and background monitoring system, circuit, fuel-quantity transducer, GPS car-mounted terminal connect in turn in the described car, and described GPS car-mounted terminal links to each other with described background monitoring system by wireless network again.
2, a kind of oil mass sensor-based system framework according to claim 1, it is characterized in that: circuit comprises an oil mass float and an automobile battery in the described car, this oil mass float connects the swing arm that can swing with oil mass liquid level height, described oil mass float is also drawn two lead-in wires, one lead-in wire joins with the automobile battery negative pole, another root is received the automobile battery positive pole by a divider resistance, connects a lead-in wire between this divider resistance and the oil mass float and links to each other with described fuel-quantity transducer input end.
3, a kind of oil mass sensor-based system framework according to claim 1, it is characterized in that: described fuel-quantity transducer comprises shell, input and output lead-in wire and control circuit board, described control circuit board is provided with A/D sample conversion circuit and processor of single chip computer, the input end of described A/D sample conversion circuit connects described input and output lead-in wire, output terminal connects described processor of single chip computer, and described processor of single chip computer is connected to the GPS car-mounted terminal again.
4, a kind of oil mass sensor-based system framework according to claim 3, it is characterized in that: the control circuit board of described fuel-quantity transducer also is provided with a voltage follower, this voltage follower comprises two input end ADC 12V and ADC 24V, wherein ADC 12V is and the corresponding fuel-quantity transducer incoming line of 12V car system, ADC 24V is and the corresponding fuel-quantity transducer incoming line of 24V car system that described A/D sample conversion circuit comprises two input end IN1 and IN2;
Described input end ADC 12V is connected in series the in-phase end of a resistance R 33 to operational amplifier U12-A, amplifier U12-A in-phase end more respectively with automobile battery negative pole and connecting resistance R34, voltage stabilizing diode D3, capacitor C 7 and C9, the backward end of amplifier U12-A links to each other with amplifier U12-A output terminal, and is connected to the input end IN1 of described A/D sample conversion circuit;
Described input end ADC 24V is connected in series the in-phase end of a resistance R 36 to operational amplifier U12-B, amplifier U12-B in-phase end more respectively with automobile battery negative pole and connecting resistance R37, voltage stabilizing diode D4, capacitor C 20 and C22, the backward end of amplifier U12-B links to each other with the output terminal of amplifier U12-B, and is connected to the input end IN2 of described A/D sample conversion circuit.
5, a kind of oil mass sensor-based system framework according to claim 1, it is characterized in that: described GPS car-mounted terminal comprises a car-mounted terminal main frame, and the car-mounted terminal main frame connects described fuel-quantity transducer, and is connected with background monitoring system by wireless network.
6, a kind of oil mass sensor-based system framework according to claim 1, it is characterized in that: described background monitoring system comprises Surveillance center and monitor workstation, described Surveillance center links to each other with the GPS car-mounted terminal by wireless network, also links to each other with described monitor workstation by the Internet.
Priority Applications (1)
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CNU2008201014800U CN201170741Y (en) | 2008-02-25 | 2008-02-25 | Oil mass sensing system architecture |
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CNU2008201014800U CN201170741Y (en) | 2008-02-25 | 2008-02-25 | Oil mass sensing system architecture |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101865715A (en) * | 2010-06-17 | 2010-10-20 | 天合导航通信技术有限公司 | Method for oil mass signal synchronous compensation of on-vehicle positioning terminal |
CN103017856A (en) * | 2012-12-18 | 2013-04-03 | 山东大学 | Oil level abnormity detecting and reporting device for automobile oil tank |
CN103344967A (en) * | 2013-06-28 | 2013-10-09 | 成都众易通科技有限公司 | Vehicle-mounted terminal with oil quantity sensor |
CN104061981A (en) * | 2013-03-18 | 2014-09-24 | 鸿富锦精密工业(武汉)有限公司 | Water level detection system |
CN106908113A (en) * | 2017-02-24 | 2017-06-30 | 北京中位科技有限公司 | Vehicle fuel tank fuel quantity monitoring method and system |
-
2008
- 2008-02-25 CN CNU2008201014800U patent/CN201170741Y/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101865715A (en) * | 2010-06-17 | 2010-10-20 | 天合导航通信技术有限公司 | Method for oil mass signal synchronous compensation of on-vehicle positioning terminal |
CN103017856A (en) * | 2012-12-18 | 2013-04-03 | 山东大学 | Oil level abnormity detecting and reporting device for automobile oil tank |
CN103017856B (en) * | 2012-12-18 | 2014-09-24 | 山东大学 | Oil level abnormity detecting and reporting device for automobile oil tank |
CN104061981A (en) * | 2013-03-18 | 2014-09-24 | 鸿富锦精密工业(武汉)有限公司 | Water level detection system |
CN103344967A (en) * | 2013-06-28 | 2013-10-09 | 成都众易通科技有限公司 | Vehicle-mounted terminal with oil quantity sensor |
CN106908113A (en) * | 2017-02-24 | 2017-06-30 | 北京中位科技有限公司 | Vehicle fuel tank fuel quantity monitoring method and system |
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Legal Events
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20160225 |
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CF01 | Termination of patent right due to non-payment of annual fee |