摘要:
An apparatus is for guiding a vehicle traveling of a vehicle by using information technology infrastructures. The apparatus includes: a control terminal for controlling the vehicle traveling; sensing devices that collect circumstance information of guidance areas desirous of guiding the vehicle by using the information technology infrastructures provided on the guidance areas; and a server device that recognizes a circumstance of the guidance areas to create a guidance route based on the collected circumstance information by the sensing device so that the control terminal controls the vehicle to travel along the guidance route.
摘要:
Provided are a network node and a method of performing discovery, which may stably perform discovery without delay or crash of a network at the time of initial discovery in a large-scale network. The network node operated in a distributed network includes a discovery performing unit that determines a discovery back-off time that is a transmission wait time of a discovery message based on levels of priority of the network node, and a communication unit that transmits the discovery message using the discovery back-off time.
摘要:
Provided are an adaptive communication method and a sensor node for performing the same. The sensor node adaptively selects transmitted signal output strength and a wakeup zone of transmitted data based on a received signal strength indication of a control packet received from a sink node and existence of an obstacle acquired through a sensor, and transmits data based on the adaptive selection. Also, during an operation as a receive mode, the sensor node wakes up and determines whether to receive the data from the transmit node based on wakeup zone configuration information per sensor node received from the sink node and a wakeup zone selected by a sensor node currently operable as a transmit node.
摘要:
Provided are a single-board type vehicle driving information measuring apparatus and method using a sum of absolute difference (SAD) hardware accelerator. In the vehicle driving information measuring apparatus and method, time differences between vehicle sensing signals sensed by two or more sensing units are accurately calculated in real time by the SAD hardware accelerator, and the velocity and acceleration of a vehicle can be accurately calculated based on the accurate time differences between the vehicle sensing signals. The vehicle driving information measuring apparatus is operated in two separate modes, that is, a vehicle sensing mode and a velocity measuring mode. Accordingly, power consumption of the apparatus can be minimized. In addition, the apparatus can be provided with a wireless transceiver, so that the apparatus can be constructed and operated without external cables. Further, functional blocks of the apparatus can be powered separately.
摘要:
Provided are an adaptive communication method and a sensor node for performing the same. The sensor node adaptively selects transmitted signal output strength and a wakeup zone of transmitted data based on a received signal strength indication of a control packet received from a sink node and existence of an obstacle acquired through a sensor, and transmits data based on the adaptive selection. Also, during an operation as a receive mode, the sensor node wakes up and determines whether to receive the data from the transmit node based on wakeup zone configuration information per sensor node received from the sink node and a wakeup zone selected by a sensor node currently operable as a transmit node.
摘要:
A test handler includes a loading unit including a loading picker and a loading ascending/descending unit, an unloading unit including an unloading picker and an unloading ascending/descending unit, and a chamber system. A passage site connects the loading unit and the chamber system, and also connects the chamber system and the unloading unit. The arrangement of the handler reduces the time for the loading and unloading processes by performing the loading and unloading processes on separate test trays located at separate loading and unloading positions.
摘要:
The presence and absence of sidewall spacers are used to provide discontinuous and continuous contacts respectively, between a gate electrode and a source/drain region. In particular, first and second spaced apart gate electrodes are formed on an integrated circuit substrate. A source/drain region is formed in the integrated circuit substrate therebetween. The first electrode includes a first sidewall spacer on a first sidewall thereof facing the second gate electrode. The second gate electrode is free of (i.e. does not include a sidewall spacer on a second sidewall thereof facing the first electrode. A metal silicide layer is formed on the first gate electrode, on the second gate electrode and extending from the second gate electrode onto the second sidewall and onto the source/drain region. The first sidewall spacer is free of the metal silicide layer thereon. The metal silicide layer is preferably formed by forming a metal layer on the first gate electrode, on the first sidewall spacer, on the source/drain region, on the second sidewall and on the second gate electrode. The metal layer is reacted with the first gate electrode, the source/drain region, the second sidewall and the second gate layer, to thereby form the metal silicide layer on the first gate electrode, on the second gate electrode and extending from the second gate electrode onto the second sidewall and onto the source/drain region. The metal layer is then removed from the first sidewall spacer.
摘要:
An SRAM cell having a word line shorter than a bit line is provided. First and second driver transistors having first and second gate electrodes parallel to each other are formed on a semiconductor substrate, and a third gate electrode shared by first and second transfer transistors is formed between the first and the second gate electrodes. A word line electrically connected to the third electrode is perpendicular to the first and the second gate electrodes, and a pair of bit lines electrically connected to drain areas of the first and the second transfer transistors are perpendicular to the word line. Also, a pair of ground lines are electrically connected to the source areas of the first and the second driver transistors, and are parallel to the bit lines.
摘要:
A node constituting data distribution service (DDS) structure according to an exemplary embodiment of the present invention includes a first DDS application including a first DCPS layer and a first real-time publish-subscribe (RTPS) layer and a second DDS application including a second DCPS layer communicated with the first RTPS layer.
摘要:
Provided are a reliability-based, real-time sensor network medium access control (MAC) communication system and method using a superframe. The superframe includes an active duration which is a time duration in which a communication is established, and a sleep duration which is a time duration in which no communication is established. The active duration includes a beacon block in which a plurality of beacon transmission nodes are respectively allocated beacon slots for transmitting a beacon frame, and a forwarding block in which each of sinks nodes is allocated a slot for unifying data regarding the sink node and data regarding sensor nodes managed by the sink node and transmit the result of unifying in order to establish a communication between the sink nodes and between each of the sink nodes and a base station.