Method for reducing detection data of a monitoring device in a vehicle, and method for monitoring a vehicle defect in near real time using same

• US 8,935,039 B2
• Filed: 07/13/2011
• Issued: 01/13/2015
• Est. Priority Date: 12/13/2010
• Status: Active Grant

• Current Assignee: Korea Railroad Research Institute
• Original Assignee: Korea Railroad Research Institute
• Inventors: Ok, Min Hwan, Jung, Hyun Seung
• Primary Examiner(s): Badii, Behrang
• Assistant Examiner(s): TESTARDI, DAVID A
• Application Number:
  US13/993,464
• Publication Number:
  US 20130268157A1
• Time in Patent Office: 1,280 Days
• Field of Search: 701/31.4, 702/187, 702/188, 702/199, 375/244, 375/245, 375/247, 375/249, 375/250
• US Class Current: 701/31.4
• CPC Class Codes: B60W 2050/021 Means for detecting failure or malfunction
• CPC Class Codes: B60W 2556/45 External transmission of data to or from the vehicle
• CPC Class Codes: B61L 15/0081 On-board diagnosis or maintenance
• CPC Class Codes: B61L 27/50 Trackside diagnosis or maintenance, e.g. software upgrades
• CPC Class Codes: G06F 17/00 Digital computing or data processing equipment or methods, specially adapted for specific functions information retrieval, database structures or file system structures therefor G06F16/00
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: H03M 7/00 Conversion of a code where information is represented by a given sequence or number of digits to a code where the same , similar or subset of information is represented by a different sequence or number of digits

Abstract

A method for reducing data of sensor devices in a vehicle includes collecting detection data periodically from the sensor devices and calculating an average value of the data collected during a cycle. The collected data may be compared with the calculated values and a deviation with previous data may be calculated by an upper and lower value difference method. A difference between the collected data and average values may also be calculated by a deviation method. The calculated value is stored. Data from a plurality of running vehicles may be periodically transmitted to a driving control center in order to monitor devices related to operations of all of the running vehicles in near real time.

Claims

1. A method for reducing data using a deviation method for monitoring a vehicle defect in near real time, wherein a defect monitoring system is provided in each vehicle of a plurality of vehicles, for detecting a defect in one or more components of a vehicle, and a driving control center is provided for detecting defects in components of each vehicle by receiving detection data from the defect monitoring system, the method comprising:

collecting, by the defect monitoring system, detection data periodically detected from a plurality of defect monitoring devices that are installed in a vehicle and monitor a defect associated with an operation of the vehicle;

calculating, by the defect monitoring system, a deviation from the collected detection data;

generating, by the defect monitoring system, a frame including the calculated deviation, a unique vehicle number set for each vehicle, a unique device number set in the corresponding vehicle, a final data which is equal to or greater than an average value during a previous cycle, a final data which is less than the average value during the previous cycle, and a bit size to express the deviation;

transmitting, by the defect monitoring system, the generated data frame to the driving control center;

restoring, by the driving control center, the data to its original data by calculating each deviation of the previous data and of the bit size unit by distinguishing the transmitted vehicle number and device number in the driving control center; and

detecting, by the driving control center, a defect in the corresponding component of the vehicle from the restored data.

2. The method of claim 1, further comprising:

calculating a deviation of the detection data, in the calculating by the defect monitoring system, by an upper and lower value difference method.

3. The method of claim 1, further comprising:

calculating the deviation of the detection data, in the calculating by the defect monitoring system, by a deviation method.