Communication system, communication terminal, and communication method
First Claim
1. A communication system comprising:
- a management terminal connected to a first network; and
a plurality of communication terminals connected to the management terminal through a second network, the management terminal managing transmission/reception of a frame to/from each communication terminal through the second network, wherein the communication terminal comprises;
a frame reception section which, in case of transmitting/receiving a frame between the management terminal and the communication terminal, receives the frame;
a frame content readout section which reads out a content stored in the frame which was received by the frame reception section;
a power off time setup section which sets up power off time for turning off power of the communication terminal, on the basis of a content of the frame which was read out by the frame content readout section; and
a power off section which turns off power of the communication terminal, during a period of the power off time which was set up by the power off time setup section.
2 Assignments
0 Petitions
Accused Products
Abstract
A communication terminal, in case that transmission/reception of a frame is carried out between a management terminal and another communication terminal, reads out its frame content, and on the basis of a content of the frame which was readout, sets up power off time for turning off power of the communication terminal, and turns off power of the communication terminal, during a period of the power off time. By this means, depending on a content of a frame which is transmitted/received between another communication terminal and the management terminal, power off time of the communication terminal is calculated, and therefore, it is possible to turn off power of the communication terminal during such a period that transmission/reception is not carried out to/from the management terminal, and it is possible to suppress power consumption of the communication terminal.
-
Citations
17 Claims
-
1. A communication system comprising:
-
a management terminal connected to a first network; and
a plurality of communication terminals connected to the management terminal through a second network, the management terminal managing transmission/reception of a frame to/from each communication terminal through the second network, wherein the communication terminal comprises;
a frame reception section which, in case of transmitting/receiving a frame between the management terminal and the communication terminal, receives the frame;
a frame content readout section which reads out a content stored in the frame which was received by the frame reception section;
a power off time setup section which sets up power off time for turning off power of the communication terminal, on the basis of a content of the frame which was read out by the frame content readout section; and
a power off section which turns off power of the communication terminal, during a period of the power off time which was set up by the power off time setup section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A communication terminal which transmits/receives a frame to/from a management terminal which is connected to a first network, through a second network, comprising:
-
a frame reception section which, in case of transmitting/receiving a frame between the management terminal and the communication terminal, receives the frame;
a frame content readout section which reads out a content stored in the frame which was received by the frame reception section;
a power off time setup section which sets up power off time for turning off power of the communication terminal, on the basis of a content of the frame which was read out by the frame content readout section; and
a power off section which turns off power of the communication terminal, during a period of the power off time which was set up by the power off time setup section.
-
-
10. A communication method in which a management terminal connected to a first network is transmitting/receiving a frame to/from a plurality of communication terminals through a second network,
wherein the communication terminal comprises: -
receiving, in case of transmitting/receiving a frame between the management terminal and the communication terminal, the frame;
reading out a content which was stored in the received frame;
setting up power off time for turning off power of the communication terminal, on the basis of a content of the frame which was read out; and
turning off power of the communication terminal, during a period of the power off time which was set up.
-
-
11. A communication system comprising a communication terminal and a management terminal which manages the communication terminal,
wherein the management terminal comprises a communication unit which transmits a reference frame including frame stored information which shows that there exists a frame addressed to the communication terminal, to the communication terminal, and wherein the communication terminal comprises: -
a communication unit which receives the reference frame; and
a power control unit which turns off power, in case that the frame stored information is not included in the reference frame received by the communication unit of the communication terminal, after it turns on power in tune with timing of receiving the reference frame from the management terminal. - View Dependent Claims (12, 13)
-
-
14. A communication system comprising a plurality of communication terminals and a management terminal which manages the communication terminals,
wherein the management terminal comprises: -
a processing order determination unit which determines a processing order from a reference frame; and
a communication unit which carries out communication with each communication terminal in accordance with the processing order which was determined by the processing order determination unit, and wherein the communication terminal comprises;
a communication unit which receives the reference frame; and
a power control unit which turns off power, after transmission/reception of a frame to/from the management terminal is completed, after it turns on power in tune with timing of receiving the reference frame from the management terminal. - View Dependent Claims (15, 16, 17)
-
Specification