Waveform Observing Apparatus and System Thereof

• US 20090313289A1
• Filed: 06/04/2009
• Published: 12/17/2009
• Est. Priority Date: 06/11/2008
• Status: Active Grant

• Current Assignee: Keyence Corporation (Keyence)
• Original Assignee: Keyence Corporation (Keyence)
• Inventors: GOTO, Naoki, ATORO, Takashi
• Granted Patent: US 8,675,005 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01K 1/026 arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

There are provided a waveform observing apparatus and the system thereof in which, when a removable storage medium is inserted into the waveform observing apparatus to capture a copy of measured data, a difference copy is made while including the latest measured data collected by the waveform observing apparatus at the time, sixteenth and seventeenth measured data temporarily stored in a buffer memory are filed and stored in the state of being housed in a fourth measured data file, into a body memory. Copies of a third measured data file including part of the difference copy and a new fourth measured data file are written into the USB memory. When the USB memory is inserted into a personal computer, a hard disk of the personal computer comes into a state where its third measured data file is overwritten and stored and the fourth measured data file is newly stored.

Claims

1. A waveform observing apparatus, which temporarily stores sampled measured data, creates a measured data file in a body memory in each predetermined filing creation cycle, houses the temporarily stored measured data into the measured data file, and also supplies a removable storage medium with a copy of the measured data file stored in the body memory,

wherein, in supplying the removable storage medium with a copy of the measured data file, a new measured data file is created in the body memory for housing the temporarily stored measured data.

2. A waveform observing apparatus, which houses sampled measured data into a measured data file formed in a body memory in each predetermined filing creation cycle, and also supplies a removable storage medium with a copy of the measured data file stored in the body memory, the apparatus comprising:

a buffer memory for temporarily storing sampled measured data;

a file creating device, which creates in the body memory a measured data file for housing measured data temporarily stored in the buffer memory when the removable storage medium is inserted into the waveform observing apparatus and a difference copy command is received from the removable storage medium, and houses the buffer memory in the measured data file; and

a file transferring device for supplying the removable storage medium with a copy of measured data file including difference data.

3. The waveform observing apparatus according to claim 2, wherein

the waveform observing apparatus or the removable storage medium has a copy history file, and

the presence or absence of measured data to be supplied to the removable storage medium is determined based upon the copy history file.

4. A waveform observing system, further comprising an external computer that receives a difference copy from the removable storage medium, in addition to the waveform observing apparatus according to claim 2,

wherein, out of the measured data files stored in the external computer, a measured data file in common with the measured data file received from the removable storage medium is overwritten and stored when the external computer receives the measured data file from the removable storage medium having completed storage of the difference copy.