Collective wiring system and method of control thereof
First Claim
1. A method of control of a collective wiring system in which data is transmitted between a plurality of input and output terminals by a common data transmission system under control of a central control unit equipped with a computer operating under control of a stored control program and having a memory for storing data, comprising the steps of:
- periodically checking the operation status of each of said input terminals;
storing in memory the result of said checking of the operation status of said input terminals in the form of a status table;
storing in memory a desired control condition of each of said output terminals in the form of a control table;
storing in memory connection information independent of said stored control program and including the identity of the output terminals to be controlled by identified input terminals in the form of a connection table; and
sending control command signals from said central control unit via said common data transmission system to said output terminals in accordance with said stored control program to control the operation condition thereof on the basis of the operation status information stored in said status table and the connection information stored in said connection table.
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Accused Products
Abstract
A collective wiring system for an automobile provides a central control unit which communicates with a plurality of terminal control units each connected to one or more input or output devices, such as switches, sensors, motors and the like. The control over output devices in response to the status of input devices is performed by the central control unit on the basis of tables of data stored in memory. A scan table controls the order in which data communications are made to the terminal control units to obtain their status and provide them with control commands. A monitor table stores the current status of the terminal control units and a control table stores the control data for the terminal control units. A connection table stores the relationship between the terminal control unit for an input device and the terminal control unit for the output device to be controlled thereby. Thus, connection control between input and output devices is effected by software.
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Citations
15 Claims
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1. A method of control of a collective wiring system in which data is transmitted between a plurality of input and output terminals by a common data transmission system under control of a central control unit equipped with a computer operating under control of a stored control program and having a memory for storing data, comprising the steps of:
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periodically checking the operation status of each of said input terminals; storing in memory the result of said checking of the operation status of said input terminals in the form of a status table; storing in memory a desired control condition of each of said output terminals in the form of a control table; storing in memory connection information independent of said stored control program and including the identity of the output terminals to be controlled by identified input terminals in the form of a connection table; and sending control command signals from said central control unit via said common data transmission system to said output terminals in accordance with said stored control program to control the operation condition thereof on the basis of the operation status information stored in said status table and the connection information stored in said connection table. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A collective wiring system in which data is transmitted to a plurality of output terminals to control said output terminals on the basis of the detected operating condition of selected ones of a plurality of input terminals, comprising:
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a plurality of terminal control units each connected to one or more input and/or output terminals; a central control unit including a computer having memory means for storing data; and a multiple signal transmission path connecting said central control unit to each of said terminal control units; said central control unit comprising; (a) first means responsive to a stored control program for periodically communicating with said terminal control units to check the operation status of the input terminals connected thereto; (b) second means in said memory means for storing data obtained by said first means in the form of a status table; (c) third means in said memory means for storing a desired control condition of each of said output terminals in the form of a control table; (d) fourth means in said memory means for storing connection information independent of said stored control program and including the identity of the output terminals to be controlled by identified input terminals in the form of a connection table; and (e) fifth means responsive to said stored control program for sending control command signals to said terminal control units to control the operating condition of output terminals on the basis of the operation status information in said status table and the connection information in said connection table. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification