-
Patent Agency Ranking
公开(公告)号：KR1020130111027A
公开(公告)日：2013-10-10
申请号：KR1020120033480
申请日：2012-03-30
Applicant: 국방과학연구소
IPC: G06F12/06
Abstract: PURPOSE: A dynamic memory management method in an embedded system performs assignment and release of a stack memory at block level, thereby providing a reliable operation environment for a system which is composed of S/W only in an embedded system with limited H/W. CONSTITUTION: The size of a stack box for each of functions and interrupt subroutines is calculated. When a function is called, bits in a memory map corresponding to the size of a stack box for the function are searched in a sequential manner and the consecutive blocks within a data memory are allocated to the stack box of the function. Information about the allocated stack box is stored. When the execution of the function is completed, blocks corresponding to the allocated stack box are returned using the stored information and the routine is restored to the point of the function call. [Reference numerals] (10) Memory map; (100) Data memory; (AA) Heap memory and stack memory; (BB) SB for ISR; (CC) Block
Abstract translation: 目的：嵌入式系统中的动态内存管理方法在块级别执行堆栈内存的分配和释放，从而为只有在H / W有限的嵌入式系统中由S / W组成的系统提供可靠的运行环境。 规定：计算每个功能和中断子程序的堆栈框的大小。 当调用函数时，以顺序的方式搜索与功能的堆栈框的大小对应的存储器映射中的位，并将数据存储器内的连续块分配给该功能的堆栈框。 有关分配的堆栈框的信息被存储。 当功能的执行完成时，使用存储的信息返回与分配的堆栈框相对应的块，并且将例程恢复到功能调用的点。 （附图标记）（10）存储器映射; （100）数据存储器; （AA）堆内存和堆栈内存; （BB）SB为ISR; （CC）块
-
公开(公告)号：KR101214452B1
公开(公告)日：2012-12-21
申请号：KR1020110032095
申请日：2011-04-07
Applicant: 국방과학연구소
CPC classification number: H04J3/0667 , Y02D70/00
Abstract: 본발명은무선센서네트워크분야에관한것으로, 보다상세하게는무선센서네트워크에서센서노드들간의클럭(clock) 동기화방법에있어서, 메시지를수신하는센서노드의클럭이상기메시지를송신한센서노드의클럭과동기화되도록클럭오프셋보정하는제1 클럭동기화단계와, 상기메시지를수신하는상기센서노드가상기클럭오프셋보정시각을저장하는단계와, 상기제1 클럭동기화단계가최초의보정이아닌경우상기저장된클럭오프셋중 i번째클럭오프셋(i는 0 이상의정수)과 (i+1)번째클럭오프셋사이의상대클럭스큐를이용해클럭스큐보정하는제2 클럭동기화단계를포함한다. 본발명에따른무선센서네트워크에서센서노드들간의클럭(clock) 동기화방법을이용하면, 시각동기화의정확도를높이고, 전제무선센서네트워크의수명을증대시킬수 있다.
Abstract translation: 本发明涉及一种无线传感器网络领域，并且更具体地，根据该时钟（时钟），用于无线传感器网络，所述传感器节点之间的同步，该传感器节点发送的传感器节点的接收消息时钟和时钟移相器的消息 该方法包括接收第一时钟同步校正时钟传感器节点的偏移，其中所述消息来同步存储时钟偏移补偿时间，存储的时钟偏移，当第一时钟相位同步，而不是的初始校准 在时钟的第i个使用相对时钟之间和第（i + 1）个时钟偏移和第二时钟同步校正时钟偏移歪斜（i是大于0等于或更大的整数）的偏移量。 与传感器节点时钟（时钟），用于根据本发明的无线传感器网络之间的同步，以提高时间同步的精度，有提高sikilsu的前提的无线传感器网络的生命。
-
公开(公告)号：KR1020120114532A
公开(公告)日：2012-10-17
申请号：KR1020110032095
申请日：2011-04-07
Applicant: 국방과학연구소
CPC classification number: H04J3/0667 , Y02D70/00
Abstract: PURPOSE: A clock synchronizing method between sensor nodes in a wireless sensor network is provided to perform clock offset compensation and clock skew compensation between sensor nodes. CONSTITUTION: A clock offset of a sensor node is corrected in order to synchronize a clock of the sensor node which transmits the message(S410). The sensor node receives the message stores clock offset correction time(S420). In case the clock offset correction is not initial correction(S430), clock skew correction is performed by using a relative clock skew between i-th clock offset and (i+1)-th clock offset(S440). [Reference numerals] (AA) Start; (BB) Yes; (CC) No; (DD) End; (S410) Correcting clock offset; (S420) Storing clock offset; (S430) Verifying whether or not initial correction; (S440) Skew correction
Abstract translation: 目的：提供无线传感器网络中的传感器节点之间的时钟同步方法，以在传感器节点之间执行时钟偏移补偿和时钟偏移补偿。 构成：校正传感器节点的时钟偏移，以便同步发送消息的传感器节点的时钟（S410）。 传感器节点接收消息存储时钟偏移校正时间（S420）。 在时钟偏移校正不是初始校正的情况下（S430），通过使用第i时钟偏移和第（i + 1）时钟偏移之间的相对时钟偏移来执行时钟偏差校正（S440）。 （附图标记）（AA）开始; （BB）是的; （CC）否; （DD）结束; （S410）校正时钟偏移; （S420）存储时钟偏移; （S430）验证初始校正是否正确; （S440）倾斜矫正
-
公开(公告)号：KR101327325B1
公开(公告)日：2013-11-11
申请号：KR1020120148613
申请日：2012-12-18
Applicant: 국방과학연구소
Abstract: The present invention relates to a device and a method for arranging nodes in a three-dimensional space of a surveillance and reconnaissance sensor network system which forms two-tier topology in the three-dimensional space by considering a node installation height. For this, the device for arranging nodes in a three-dimensional space of a surveillance and reconnaissance sensor network system according to the present invention includes: multiple sensor nodes which are composed of a directional sensor and a non-directional sensor, detect an intruding target, and transmit a detected signal; multiple relay nodes transmitting the detected signal, which is transmitted from the sensor nodes, to a C2 terminal; and a node arranging device arranging the multiple sensor nodes and relay nodes in a three-dimensional space. The node arranging device calculates a detection distance for each sensor type based on a pre-calculated weighting value, which is applied to a detection distance, and on a node installation height for each sensor type; calculates a transmission distance for each sensor type based on a pre-calculated weighting value, which is applied to a transmission distance, and on the node installation height for each sensor type; arranges the multiple sensor nodes and relay nodes in a three-dimensional space based on the calculated detection distance and transmission distance; and constructs a two-tier topology network based on the arranged, multiple sensor nodes and relay nodes. [Reference numerals] (100) Sensor node;(200) Relay node;(300) C2 device;(400) Node placement device
Abstract translation: 本发明涉及一种用于在监视和侦察传感器网络系统的三维空间中布置节点的装置和方法，其通过考虑节点安装高度在三维空间中形成两层拓扑。 为此，根据本发明的用于在监视和侦察传感器网络系统的三维空间中布置节点的装置包括：由定向传感器和非定向传感器组成的多个传感器节点，检测入侵目标 ，并发送检测信号; 多个中继节点将从传感器节点发送的检测信号发送到C2终端; 以及在三维空间中布置多个传感器节点和中继节点的节点排列装置。 节点排列装置根据对应于检测距离的预先计算的加权值和每个传感器类型的节点安装高度来计算每个传感器类型的检测距离; 基于应用于传输距离的预先计算的加权值和每个传感器类型的节点安装高度来计算每个传感器类型的传输距离; 基于计算出的检测距离和传输距离，将多个传感器节点和中继节点排列在三维空间中; 并基于排列的多个传感器节点和中继节点构建双层拓扑网络。 （100）传感器节点;（200）中继节点;（300）C2设备;（400）节点放置设备
-
公开(公告)号：KR101378058B1
公开(公告)日：2014-03-27
申请号：KR1020120033480
申请日：2012-03-30
Applicant: 국방과학연구소
IPC: G06F12/06
Abstract: 본 발명은 전체 데이타 메모리를 고정된 큭기의 블록으로 나누어 블록단위로 할당 및 해제를 수행한다. 따라서, 제한된 H/W 로 구성된 임베디드 시스템에서 순수 S/W로만 구성되는 시스템의 신뢰적인 동작 환경을 제공할 수 있으며, 멀티 태스킹 운영체제 환경에서 시스템 실행시 오동작의 주 원인인 스택동작 관련 스택 오버플로우와 태스크간 스택영역 충돌의 방지할 수 있다. 특히 본 발명은 블록단위로 할당 및 해제를 수행하기 때문에 제한된 메모리 공간(스택 메모리)을 효율적으로 사용할 수 있으며, 이로 인하여 가용한 동적 메모리(힙 메모리)의 공간을 확보하여 태스크 수용력을 확대시킬 수 있다.
-
-
-
-
Search Results
5
records
(took 0.017 seconds)
