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US 11,388,576 B2Granted
Emergency call method and apparatus, and system
AssigneeHuawei Technologies Co., Ltd.
InventorsXuehuan Wang, Chao Li, Xiujiang Ma
Life of this patent
Estimating the term…
Abstract
An emergency call method applied to a vehicle-mounted communications system and the method includes a telematics box that activates a host function. The host function includes controlling a first transmission node and a peripheral connected to the first transmission node. The telematics box is coupled to the first transmission node, and the telematics box may perform data transmission with the first transmission node using the host function. The first transmission node is in a master node mode.
Claims21
A communication method comprising:
- performing, by a telematics box that has not activated a host function of the telematics box and through a first transmission node that is coupled to the telematics box and that is in a slave node mode, first data transmission with a first host, wherein the host function of the telematics box comprises a function of controlling the first transmission node switched from the slave node mode to a master node mode;
- activating, by the telematics box, the host function of the telematics box that comprises the function of controlling the first transmission node switched from the slave node mode to the master node mode and controlling a peripheral coupled to the first transmission node, wherein activating the host function of the telematics box is based on detecting, by the telematics box, a signal for triggering a call, detecting that a transmission path between the first transmission node and a first master node in a data communication system has been interrupted, or receiving, by the telematics box, from the first transmission node, a first instruction instructing the telematics box to activate the host function of the telematics box;
- and
- performing, by the telematics box having activated the host function of the telematics box and after determining that the first transmission node has switched from the slave node mode to the master node mode, second data transmission with the first transmission node to receive data collected by the peripheral.
1 more element
A communication method comprising:
- receiving, by a first transmission node in a slave node mode and through a first master node, data from a first host;
- switching, by the first transmission node, from the slave node mode to a master node mode;
- performing, by the first transmission node in the master node mode, data transmission with a telematics box that is coupled to the first transmission node and that has activated a host function of the telematics box, wherein the telematics box is distinct from the first master node;
- and
- undergoing, by the first transmission node in the master node mode, control through the host function of the telematics box,
- wherein before switching from the slave node mode to the master node mode, the communication method further comprises receiving, by the first transmission node and based on the telematics box detecting a signal for triggering a call, detecting that a transmission path between the first transmission node and the first master node has been interrupted, or receiving, by the telematics box from the first transmission node, a first instruction instructing the telematics box to activate the host function of the telematics box, a second instruction instructing the first transmission node to switch from the slave node mode to the master node mode to enable the first transmission node to send data collected by a peripheral to the telematics box.
3 more elements
A telematics box, comprising:
- one or more processors, and
- a memory coupled to the one or more processors and configured to store program instructions that, when executed by the one or more processors, cause the telematics box to:
- perform, by the telematics box that has not activated a host function of the telematics box and through a first transmission node that is coupled to the telematics box and that is in a slave node mode, first data transmission with a first host, wherein the host function of the telematics box comprises a function of controlling the first transmission node switched from the slave node mode to a master node mode;
- activate the host function of the telematics box that comprises the function of controlling the first transmission node switched from the slave node mode to the master node mode and controlling a peripheral coupled to the first transmission node, wherein activating the host function of the telematics box is based on detecting, by the telematics box, a signal for triggering a call, detecting that a transmission path between the first transmission node and a first master node in a data communication system has been interrupted, or receiving, by the telematics box, from the first transmission node, a first instruction instructing the telematics box to activate the host function of the telematics box;
- and
- perform, by the telematics box that has activated the host function of the telematics box, second data transmission with the first transmission node after determining that the first transmission node has switched from the slave node mode to the master node mode to receive data collected by the peripheral.
3 more elements
A first transmission node, comprising:
- one or more processors, and
- a memory coupled to the one or more processors and configured to store program instructions that, when executed by the one or more processors, cause the first transmission node to:
- perform, through a first master node, first data transmission between the first transmission node in a slave node mode and a first host;
- receive, based on a telematics box detecting a signal for triggering a call, detecting that a transmission path between the first transmission node and the first master node has been interrupted, or receiving, by the telematics box from the first transmission node, a first instruction instructing the telematics box to activate a host function of the telematics box, a second instruction instructing the first transmission node to switch from the slave node mode to a master node mode to enable the first transmission node to send data collected by a peripheral to the telematics box;
- switch a mode of the first transmission node from the slave node mode to the master node mode;
- perform, by the first transmission node in the master node mode, second data transmission between the first transmission node in the master node mode and the telematics box that has activated the host function of the telematics box, wherein the telematics box is distinct from the first master node;
- and
- undergo control through the host function of the telematics box when the first transmission node is in the master node mode.
5 more elements
Dependencies are inferred from the claim text.