Method for oil mass signal synchronous compensation of on-vehicle positioning terminal

A technology for positioning terminals and compensation methods, applied in signal transmission systems, electrical signal transmission systems, measuring devices, etc., can solve the problems of inability to collect oil quantity information and low collection accuracy, and achieve the effect of low cost and high collection accuracy

Inactive Publication Date: 2012-02-01
天合导航通信技术有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fuel tank anti-theft monitoring system with this structure has low collection accuracy, and can only collect the fuel volume information of the vehicle fuel tank under static conditions, and cannot realize the collection of fuel volume information under dynamic conditions during vehicle driving.

Method used

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  • Method for oil mass signal synchronous compensation of on-vehicle positioning terminal
  • Method for oil mass signal synchronous compensation of on-vehicle positioning terminal
  • Method for oil mass signal synchronous compensation of on-vehicle positioning terminal

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Embodiment Construction

[0023] Such as figure 1 As shown, the present invention is a method for synchronously compensating fuel quantity signals for a vehicle-mounted positioning terminal. The vehicle-mounted positioning terminal used in the present invention includes a central processing unit 1, a GPS positioning unit 2 connected to the central processing unit 1, and a communication unit 3 . The display unit 4 also includes a keyboard 5 and an oil quantity information collection system 6 respectively connected to the central processing unit. The communication unit 3 is connected with a remote control center 7 .

[0024] Such as figure 2 As shown, the fuel quantity information collection system 6 includes a fuel quantity signal unit 61, a power supply signal unit 62, a voltage gear switch 63, an impedance protection circuit 64, and an analog-to-digital converter 65, wherein the fuel quantity signal unit 61, the voltage gear switch The switch 63, the impedance protection circuit 64, and the analog-...

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Abstract

The invention discloses a method for oil mass signal synchronous compensation of an on-vehicle positioning terminal. The on-vehicle positioning terminal employing the method comprises a central processing unit, a GPS positioning unit, a communication unit, a display unit, a keyboard and an oil mass information acquisition system, wherein the GPS positioning unit, the communication unit and the display unit are connected with the central processing unit respectively; and the keyboard and the oil mass information acquisition system are also connected with the central processing unit respectively. In the method, by synchronously acquiring power supply signals and oil mass signals, and performing operation processing on the signals by the central processing unit through an analog-digital converter, the abrupt changes of the oil mass in an oil tank are eliminated, a real oil mass value is input to a local display unit or is sent to a remote control center by the communication unit so as torealize the real-time accurate monitoring of the oil mass of the oil tank of a vehicle.

Description

technical field [0001] The invention relates to a vehicle-mounted positioning terminal, in particular to a method for synchronously compensating an oil quantity signal for the vehicle-mounted positioning terminal. Background technique [0002] The existing vehicle positioning terminal products monitor the vehicle fuel quantity mainly by inserting high-precision sensors into the fuel tank and collecting the analog voltage of the vehicle fuel quantity signal line to obtain the current vehicle fuel tank fuel stock. The method of inserting a high-precision sensor into the fuel tank has high sampling accuracy, and the system is stable and safe, but the installation process is complicated, and the vehicle fuel tank must be modified, and the system implementation cost is high. The method of collecting the analog voltage of the vehicle's fuel quantity signal line has the advantages of low cost, easy implementation and maintenance, but the fuel value of the vehicle's fuel tank often ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/00G01R19/00G08C19/00
Inventor 周斯来孙丽艳刘文麒张超武修琪
Owner 天合导航通信技术有限公司
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