Communication system and method for assigning addresses
AssigneeDenso Corporation
InventorKazuhiro Miyazawa
Life of this patent
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Abstract
A master ECU instructs door actuators having a counter value of θ n (where n=1,2,3) to set the address n as their unique network addresses. A control unit in each door servo actuator determines whether a counter value (θ n) that is the subject of a query from the master ECU corresponds to its own counter value, and the control unit sets the address n, when the control unit determines that the counter value (θ n) of the query corresponds to its own counter value. The counter value (θ n) is a unique quantity associated with each servo actuator
Claims16
A communication system, comprising:
- a plurality of slave units associated with a unique quantity, wherein each has a unique quantity;
- a master unit communicating with the slave units;
- a network line connected to the plurality of slave units and to the master unit, wherein:
- the master unit issues a query to the slave units, wherein the query seeks to determine whether a predetermined value corresponds with the unique quantity of any of the slave units;
- and
- each slave unit sets a unique address based on an instruction of the master unit when the predetermined value of the query corresponds to the unique quantity associated with each slave unit.
A method for assigning an address, comprising:
- issuing a query to a plurality of slave units, wherein the query seeks one slave unit that is associated with one of a plurality of predetermined unique quantities and each slave unit has a unique quantity;
- and
- setting an address in the one slave unit based on an instruction of the master unit when a value that is the subject of the query corresponds to the unique quantity associated with the one slave unit, whereby the master unit assigns an unique address to the one slave unit that has a unique quantity corresponding to the value.
A method of setting unique network addresses in a network that includes a master controller and a plurality of slave units, wherein the master controller communicates to each slave unit through network communication and each slave unit has a unique quantity, the method comprising:
- determining in each slave unit the unique quantity by performing an operation and measuring a result of the operation;
- storing in each slave unit the unique quantity;
- assigning a unique network address to each slave unit in correspondence with the unique quantity stored in each slave unit.
Dependencies are inferred from the claim text.