Multiple channel data acquisition system

Patent · Tue May 22 00:00:00 EDT 1990

OSTI ID:867400

Crawley, H Bert ^[1]; Rosenberg, Eli I ^[1]; Meyer, W Thomas ^[1]; Gorbics, Mark S ^[1]; Thomas, William D ^[2]; McKay, Roy L ^[1]

---

1. Ames, IA
2. Boone, IA

A multiple channel data acquisition system for the transfer of large amounts of data from a multiplicity of data channels has a plurality of modules which operate in parallel to convert analog signals to digital data and transfer that data to a communications host via a FASTBUS. Each module has a plurality of submodules which include a front end buffer (FEB) connected to input circuitry having an analog to digital converter with cache memory for each of a plurality of channels. The submodules are interfaced with the FASTBUS via a FASTBUS coupler which controls a module bus and a module memory. The system is triggered to effect rapid parallel data samplings which are stored to the cache memories. The cache memories are uploaded to the FEBs during which zero suppression occurs. The data in the FEBs is reformatted and compressed by a local processor during transfer to the module memory. The FASTBUS coupler is used by the communications host to upload the compressed and formatted data from the module memory. The local processor executes programs which are downloaded to the module memory through the FASTBUS coupler.

• Research Organization: Ames Laboratory (AMES), Ames, IA; Iowa State Univ., Ames, IA (United States)
• DOE Contract Number: W-7405-ENG-82
• Assignee: Iowa State University Research Foundation, Inc. (Ames, IA)
• Patent Number(s): US 4928246
• Application Number: 07/261,031
• OSTI ID: 867400
• Country of Publication: United States
• Language: English

Related Subjects

multiple
channel
data
acquisition
transfer
amounts
multiplicity
channels
plurality
modules
operate
parallel
convert
analog
signals
digital
communications
host
via
fastbus
module
submodules
front
buffer
feb
connected
input
circuitry
converter
cache
memory
interfaced
coupler
controls
bus
triggered
effect
rapid
samplings
stored
memories
uploaded
febs
zero
suppression
occurs
reformatted
compressed
local
processor
upload
formatted
executes
programs
downloaded
digital data
multiple channel
data acquisition
analog signal
channel data
analog signals
parallel data
digital converter
/700/340/341/