公开(公告)号：US20220268824A1

公开(公告)日：2022-08-25

申请号：US17538427

申请日：2021-11-30

Applicant: CALAMP CORP.

Inventor： David B. Patton

IPC: G01R31/00 ,  B60R16/023 ,  G07C5/00

Abstract: Systems and methods for determining vehicle operational status in accordance with embodiments of the invention are disclosed. In one embodiment, a vehicle event detection device includes a low pass filter configured to sense a vehicle voltage and filter the sensed voltage to remove noise, and a plurality of first high pass filter configured to detect either a drop or a rise in the vehicle voltage and several low power comparators configured to determine whether the drop or rise in voltage is indicative of a vehicle event.

公开(公告)号：US20200278386A1

公开(公告)日：2020-09-03

申请号：US16289320

申请日：2019-02-28

Applicant: CalAmp Corp.

Inventor： David B. Patton

IPC: G01R31/00 ,  G07C5/00 ,  B60R16/023

Abstract: Systems and methods for determining vehicle operational status in accordance with embodiments of the invention are disclosed. In one embodiment, a vehicle event detection device includes a low pass filter configured to sense a vehicle voltage and filter the sensed voltage to remove noise, and a plurality of first high pass filter configured to detect either a drop or a rise in the vehicle voltage and several low power comparators configured to determine whether the drop or rise in voltage is indicative of a vehicle event.

公开(公告)号：US11733284B2

公开(公告)日：2023-08-22

申请号：US17538427

申请日：2021-11-30

Applicant: CALAMP CORP.

Inventor： David B. Patton

IPC: G01R31/00 ,  B60R16/023 ,  G07C5/00

CPC classification number: G01R31/007 ,  B60R16/023 ,  G07C5/008

Abstract: Systems and methods for determining vehicle operational status in accordance with embodiments of the invention are disclosed. In one embodiment, a vehicle event detection device includes a low pass filter configured to sense a vehicle voltage and filter the sensed voltage to remove noise, and a plurality of first high pass filter configured to detect either a drop or a rise in the vehicle voltage and several low power comparators configured to determine whether the drop or rise in voltage is indicative of a vehicle event.

公开(公告)号：US11187739B2

公开(公告)日：2021-11-30

申请号：US16289320

申请日：2019-02-28

Applicant: CalAmp Corp.

Inventor： David B. Patton

IPC: G01R31/00 ,  B60R16/023 ,  G07C5/00

Abstract: Systems and methods for determining vehicle operational status in accordance with embodiments of the invention are disclosed. In one embodiment, a vehicle event detection device includes a low pass filter configured to sense a vehicle voltage and filter the sensed voltage to remove noise, and a plurality of first high pass filter configured to detect either a drop or a rise in the vehicle voltage and several low power comparators configured to determine whether the drop or rise in voltage is indicative of a vehicle event.

公开(公告)号：US20200074397A1

公开(公告)日：2020-03-05

申请号：US16559330

申请日：2019-09-03

Applicant: CalAmp Corp.

Inventor： Brian J. Burda ,  Steve Burrington ,  David B. Patton ,  James Hardee

IPC: G06Q10/08

Abstract: An asset tracker device includes a solar panel for powering a battery of the asset tracker device. The asset tracker device includes a modem for communicating a message regarding an asset to a remote server. The message includes a location of the asset and a status of the battery.