CONTROL SYSTEM AND METHOD, AND COMMUNICATION DEVICE AND METHOD
First Claim
1. A control system comprising:
- a control device for performing a control of a predetermined process, anda communication device for communicating with the control device;
wherein the control device includes;
a first transmission unit for transmitting a request signal requesting for transmission of a response signal to the communication device,a first reception unit for receiving the response signal transmitted through a predetermined procedure from the communication device in response to the request signal transmitted by the first transmission unit,an authentication unit for performing authentication of the communication device using identification information of the communication device contained in the response signal received by the first reception unit and identification information of the communication device registered in advance, anda process executing unit for executing the predetermined process when the authentication of the communication device by the authentication unit is successful; and
wherein the communication device includes;
a first storage unit for storing transmission scheduled time information indicating a time scheduled to transmit the response signal assigned to the communication device,a second reception unit for receiving the request signal transmitted from the first transmission unit, anda second transmission unit for transmitting the response signal corresponding to the request signal received by the second reception unit to the control device at a time different from times assigned to other communication devices based on the transmission scheduled time information stored in the first storage unit.
2 Assignments
0 Petitions
Accused Products
Abstract
A control system has a control device for performing a control of a predetermined process, and a communication device for communicating with the control device. The control device has a first transmission unit for transmitting a request signal requesting for transmission of a response signal to the communication device, a first reception unit for receiving the response signal transmitted through a predetermined procedure from the communication device in response to the request signal transmitted by the first transmission unit, an authentication unit for performing authentication of the communication device using identification information of the communication device contained in the response signal received by the first reception unit and identification information of the communication device registered in advance, and a process executing unit for executing the predetermined process when the authentication of the communication device by the authentication unit is successful. The communication device has a first storage unit for storing transmission scheduled time information indicating a time scheduled to transmit the response signal assigned to the communication device, a second reception unit for receiving the request signal transmitted from the first transmission unit, and a second transmission unit for transmitting the response signal corresponding to the request signal received by the second reception unit to the control device at a time different from times assigned to other communication devices based on the transmission scheduled time information stored in the first storage unit.
34 Citations
17 Claims
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1. A control system comprising:
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a control device for performing a control of a predetermined process, and a communication device for communicating with the control device; wherein the control device includes; a first transmission unit for transmitting a request signal requesting for transmission of a response signal to the communication device, a first reception unit for receiving the response signal transmitted through a predetermined procedure from the communication device in response to the request signal transmitted by the first transmission unit, an authentication unit for performing authentication of the communication device using identification information of the communication device contained in the response signal received by the first reception unit and identification information of the communication device registered in advance, and a process executing unit for executing the predetermined process when the authentication of the communication device by the authentication unit is successful; and wherein the communication device includes; a first storage unit for storing transmission scheduled time information indicating a time scheduled to transmit the response signal assigned to the communication device, a second reception unit for receiving the request signal transmitted from the first transmission unit, and a second transmission unit for transmitting the response signal corresponding to the request signal received by the second reception unit to the control device at a time different from times assigned to other communication devices based on the transmission scheduled time information stored in the first storage unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of controlling a control system including a control device for performing a control of a predetermined process, and a communication device for communicating with the control device;
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the method comprising steps performed by the control device of; transmitting a request signal requesting for transmission of a response signal to the communication device, receiving the response signal transmitted through a predetermined procedure from the communication device in response to the transmitted request signal, performing authentication of the communication device using identification information of the communication device contained in the received response signal and identification information of the communication device registered in advance, and executing the predetermined process when the authentication of the communication device is successful; and the method comprising steps performed by the communication device of; receiving the request signal transmitted by the control device, and transmitting the response signal corresponding to the received request signal to the control device at a time different from times assigned to other communication devices based on transmission scheduled time information indicating a time scheduled to transmit the response signal assigned to the communication device.
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11. A communication device for communicating with a control device that performs a control of a predetermined process, comprising:
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a storage unit for storing transmission scheduled time information indicating a time scheduled to transmit a response signal corresponding to a request signal transmitted by the control device assigned to the communication device; a reception unit for receiving the request signal transmitted by the control device; and a transmission unit for transmitting the response signal corresponding to the request signal received by the reception unit to the control device at a time different from times assigned to other communication devices based on the transmission scheduled time information stored in the storage unit. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A communication method of a communication device for communicating with a control device that performs a control of a predetermined process, comprising:
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receiving the request signal transmitted by the control device; and transmitting the response signal corresponding to the received request signal to the control device at a time different from times assigned to other communication devices based on transmission scheduled time information indicating a time scheduled to transmit the response signal corresponding to the request signal transmitted by the control device assigned to the communication device.
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Specification