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Vehicle-mounted weighing amplifying filter circuit

A technology of amplifying filtering and on-board weighing, applied in differential amplifiers, detailed information of weighing equipment, DC-coupled DC amplifiers, etc. and other problems to prevent illegal dumping and theft and reselling

Inactive Publication Date: 2014-10-01
JINGSU YUEDA SPECIAL VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The working condition of vehicle weighing is dynamic, the vehicle itself is vibrating, and the execution structure of the operation is also flipped up and down, and its weighing data is unstable;
[0004] 2. During the weighing process, the ECU needs to generate interrupts to receive a large amount of weighing data, and software filtering also consumes the memory of the memory, which is not conducive to the timely processing of signals from other controlled units

Method used

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  • Vehicle-mounted weighing amplifying filter circuit
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  • Vehicle-mounted weighing amplifying filter circuit

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0024] A vehicle-mounted weighing amplifier filter circuit, including a power supply module, an amplifier module, a filter module and a weighing processing module, wherein:

[0025] Such as figure 1 As shown, the power module includes a polar capacitor C1, a polar capacitor C2, a power switch S-PWR and a linear voltage regulator chip U1; one end of the power switch S-PWR is connected to the vehicle power supply, and the other end is connected to the polar capacitor C1 The positive pole of the polar capacitor C1 is connected to the IN port of the linear voltage regulator chip U1; the positive pole of the polar capacitor C2 is connected to the OUT port and the BRY port of the linear voltage regulator chip U1, and the negative pole is connected to the negative pole of the polar capacitor C1 and the linear voltage regulator chip U1. The GND port is co...

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PUM

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Abstract

The invention discloses a vehicle-mounted weighing amplifying filter circuit. The vehicle-mounted weighing amplifying filter circuit comprises a power module, an amplifying module, a filtering module and a weighing processing module. A signal can be distortionless in the manner of carrying out amplification filtering through front hardware, weighing data are processed in advance by additionally arranging the weighing processing module, the weighing processing module and a central processing unit synchronously work, and data signals are sent to an ECU after one circulation of weighing is finished. The precision of the weighing data and the stability of the vehicle performance can be effectively improved when a vehicle with complex noise signals is weighed.

Description

technical field [0001] The invention relates to the field of filter circuits, in particular to a vehicle weighing amplifier filter circuit. Background technique [0002] Household garbage from sanitation vehicles, food waste from kitchen trucks, national dangerous goods and important items, etc., all need to ensure real-time uploading of weight data during transportation to prevent illegal dumping, theft and reselling. The existing on-board weighing system still adopts the method of static platform weighing system. The signal output terminal of the load cell is directly connected with the signal input terminal of the central processing unit ECU of the working vehicle. The disadvantages are: [0003] 1. The working condition of vehicle weighing is dynamic, the vehicle itself is vibrating, and the execution structure of the operation is also flipped up and down, and its weighing data is unstable; [0004] 2. During the weighing process, the ECU needs to generate interrupts to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H11/02H03F3/45G01G21/00
Inventor 王琪孙来王成生陈军范孝波左长俊
Owner JINGSU YUEDA SPECIAL VEHICLE CO LTD
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