摘要:
A cloud-based sensor data acquisition system includes one or more sensors configured to acquire sensor data; a first terminal configured to transmit sensor data request information to a cloud server through an access point (AP); and one or more second terminals each configured to acquire sensor data from one or more sensors on a corresponding dissemination tree received from the cloud server; and transmit the acquired sensor data to the first terminal through the AP. The cloud server is configured to, in response to receiving the sensor data request information from the first terminal, build a corresponding dissemination tree for each of one or more second terminals within a sensing range; and transmit the corresponding dissemination tree to each of the one or more second terminals within the sensing range.
摘要:
A hierarchical scheduling apparatus for a cloud environment includes a schedule configuring unit configured to classify a plurality of tasks into one or more local tasks and one or more remote tasks; a schedule delegating unit configured to transmit, to another resource, a list of the remote tasks and a list of available resources to delegate scheduling authority for the remote tasks to the other resource; and a scheduling unit configured to schedule the local tasks.
摘要:
Provided is a system for distributed multi-stage compilation of application programs in a cloud environment. The system includes a source apparatus to generate a compilation order in which source representation of an application program is compiled, and a destination apparatus to receive a compiled representation created by compiling at least a portion of the source representation according to the compilation order.
摘要:
Provided is a method of allocating a stack in a multi-threaded sensor operating system environment. The method dynamically allocates as much stack space as is required by a thread, thereby enabling efficient use of stack space. The method includes the steps of: whenever a function is called while a thread is performing an operation, dynamically allocating a stack space to be used by the called function; and when execution of the function is finished, returning the allocated stack space.