Data transmission system with distributed microprocessors

Patent · Tue Jan 01 00:00:00 EST 1985

OSTI ID:865626

Nambu, Shigeo ^[1]

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1. Fuchu, JP

A data transmission system having a common request line and a special request line in addition to a transmission line. The special request line has priority over the common request line. A plurality of node stations are multi-drop connected to the transmission line. Among the node stations, a supervising station is connected to the special request line and takes precedence over other slave stations to become a master station. The master station collects data from the slave stations. The station connected to the common request line can assign a master control function to any station requesting to be assigned the master control function within a short period of time. Each station has an auto response control circuit. The master station automatically collects data by the auto response controlling circuit independently of the microprocessors of the slave stations.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Assignee: Tokyo Shibaura Denki Kabushiki Kaisha (Kawasaki, JP)
• Patent Number(s): US 4546351
• OSTI ID: 865626
• Country of Publication: United States
• Language: English

Related Subjects

data
transmission
distributed
microprocessors
common
request
line
special
addition
priority
plurality
node
stations
multi-drop
connected
supervising
station
takes
precedence
slave
master
collects
control
function
requesting
assigned
period
time
auto
response
circuit
automatically
controlling
independently
request line
data transmission
control circuit
transmission line
special request
common request
control function
master control
/340/