Communication control apparatus
First Claim
1. A communication control system comprising:
- a first communication control apparatus on a host side, anda plurality of communication control apparatuses connected to said first communication control apparatus, wherein;
the first communication control apparatus transmits a specified signal to the plurality of communication control apparatuses by broadcasting regularly,each of the plurality of communication control apparatuses starts measurement of time at a timing when the specified signal transmitted to the plurality of communication control apparatuses is received on a network installed within a vehicle, and collects and holds respective predetermined information after the measured time meets or exceeds a previously-defined time,the broadcasting is achieved according to a communication method in which a transmission right is supplied regularly, andthe respective predetermined information is transmitted to the first communication control apparatus at a time point when the transmission right provided regularly on said network is obtained.
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Accused Products
Abstract
This invention intends to reduce a time difference in information collection time as much as possible in a vehicle installed network system for collecting information on distributed positions within a vehicle. According to this invention, information on a measurement result by a sensor (23) at a time point after a previously-defined time elapses since a specified signal transmitted regularly is received is held in a sensor data storage register (49) on a network (21) installed within a vehicle, capable of broadcasting, achieved according to a communication method in which a transmission right is supplied regularly, and the information is transmitted at a time point when the transmission right is obtained on the network (21). In the vehicle installed network system for collecting information on the distributed positions within the vehicle, the time difference in the information collection time can be reduced as much as possible.
14 Citations
11 Claims
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1. A communication control system comprising:
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a first communication control apparatus on a host side, and a plurality of communication control apparatuses connected to said first communication control apparatus, wherein; the first communication control apparatus transmits a specified signal to the plurality of communication control apparatuses by broadcasting regularly, each of the plurality of communication control apparatuses starts measurement of time at a timing when the specified signal transmitted to the plurality of communication control apparatuses is received on a network installed within a vehicle, and collects and holds respective predetermined information after the measured time meets or exceeds a previously-defined time, the broadcasting is achieved according to a communication method in which a transmission right is supplied regularly, and the respective predetermined information is transmitted to the first communication control apparatus at a time point when the transmission right provided regularly on said network is obtained. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification