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Vehicle-mounted GPS fuel stock detection method

A detection method and fuel technology, applied in the field of GPS applications, can solve problems such as management and control problems for business owners, and achieve the effects of dealing with on-board interference, low cost, and high implementation efficiency

Inactive Publication Date: 2009-02-18
SHENZHEN HUAQIANG INFORMATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The uncontrollable nature of drivers being away from home poses a difficult problem for business owners to manage and control

Method used

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  • Vehicle-mounted GPS fuel stock detection method
  • Vehicle-mounted GPS fuel stock detection method

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Embodiment 1

[0031] In the present embodiment, m=4 is taken, and the specific steps are as follows:

[0032] 1) Scale the output voltage of the oil sensor to the A / D detection voltage range suitable for the CPU of the vehicle GPS terminal;

[0033]2) Obtain the characteristic parameters of the fuel quantity conversion of the vehicle: the fuel quantity sensor output voltage A / D conversion value V corresponding to the fuel tank of the vehicle when the fuel tank is empty, 1 / 4, 1 / 2, 3 / 4 and full. 0 , V 1 , V 2 , V 3 , V 4 , L is the full tank fuel value of the fuel tank, which is stored in the vehicle GPS terminal;

[0034] 3) During real-time monitoring, the output voltage of the fuel sensor is transmitted to the GPS vehicle terminal, and the vehicle GPS terminal performs A / D conversion on the output voltage of the fuel sensor to obtain the A / D conversion value;

[0035] 4) Repeat step 3) N times (the number of repetitions can be set as required, N=240 in the present embodiment), the GPS...

Embodiment 2

[0051] The difference between this embodiment and embodiment one lies in the difference of steps 3), 4), 5), 6), and 7):

[0052] 3) During real-time monitoring, the output voltage of the oil quantity sensor is transmitted to the GPS vehicle-mounted terminal, and the vehicle-mounted GPS terminal performs A / D conversion on the output voltage of the oil quantity sensor to obtain the A / D conversion value, and the GPS vehicle-mounted terminal outputs the obtained oil quantity sensor The voltage A / D conversion value is sent to the GPS service provider control center;

[0053] 4) Repeat step 3) N times (the number of repetitions can be set as required, N=240 in the present embodiment), the calculation of the GPS service provider control center obtains the A / D conversion value average value of the 240 times (that is, the previous average value); from the 241st repetition of step 3), the GPS service provider control center will obtain the A / D conversion value (that is, the average val...

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Abstract

The invention provides a vehicle-mounted GPS fuel stock detection method, which obtains the fuel stock conversion characteristic parameters in advance and obtains the real-time voltage output data through a fuel sensor so as to calculate the real-time fuel stock of the vehicle fuel tank through the piecewise linear algorithm. The invention achieves remote real-time monitoring and can prevent fuel stealing and optimize the management; the invention is low in implementation cost and has high monitoring precision and implementation efficiency, which can be applied to a variety of vehicle models and is easy in promotion and application; besides, the piecewise linear algorithm is universal.

Description

【Technical field】 [0001] The invention relates to a GPS (global satellite positioning system) application technology, in particular to a vehicle-mounted GPS fuel stock detection method which can conveniently detect the vehicle fuel stock in real time. 【Background technique】 [0002] According to the survey, the oil-stealing phenomenon of freight vehicles of small and medium-sized enterprises is very serious, and the loss caused by the oil-stealing phenomenon of some enterprises accounts for 30%-40% of the monthly vehicle fuel expenses. The uncontrollable nature of drivers being away from home poses a difficult problem for business owners to manage and control. [0003] If the fuel consumption of vehicles can be monitored in real time, the abnormal situation of fuel can be found and recorded, which is convenient for investigation and evidence collection, timely detection and stop of fuel stealing behavior, and reduces losses for the enterprise; at the same time, the historica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F23/22H04Q7/20
Inventor 王学军祝娟周志文戴智翔张颜
Owner SHENZHEN HUAQIANG INFORMATION IND