Title:
REMOTE SUPERVISORY AND CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP3151276
Kind Code:
B2
Abstract:
PURPOSE: To control loads receiving power from a single-phase three-wire power supply line and to make the system less susceptible to an erroneous address setting.
CONSTITUTION: Two-circuit type latching relays Ry1-Ry4 controlling loads are provided in control terminal equipments. The power is turned off to control loads, enabling load control receiving power from a single-phase three-wire power supply line. Transmitter-receiver circuits 19 and 20 performing a wireless signal transmission with an address setting device remotely setting address are provided in control terminal equipments. The address setting is performed by its address setting device to make an erroneous setting hard to occur.
Inventors:
Kazunori Azumaya
Application Number:
JP3684592A
Publication Date:
April 03, 2001
Filing Date:
February 25, 1992
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS,LTD.
International Classes:
G08B26/00; H04Q9/00; (IPC1-7): G08B26/00
Domestic Patent References:
| JP61270998A | ||||
| JP250798U |
Attorney, Agent or Firm:
Keisei Nishikawa (1 person outside)