公开(公告)号：KR1020140112664A

公开(公告)日：2014-09-24

申请号：KR1020130026992

申请日：2013-03-14

Applicant: 서울대학교산학협력단

Inventor： 김기선 ,  이용하 ,  박주현

IPC: A01G9/02 ,  A01G9/08 ,  A01G7/06 ,  A01G7/00

CPC classification number: A01G9/02 ,  A01G7/00 ,  A01G7/06 ,  A01G9/023 ,  A01G9/08

Abstract: The present invention provides a cultivation method of a perennial plant using a cultivation box. The cultivation method may include a step of arranging a soil layer and the plant in the cultivation box, and a step of treating the plant in the cultivation box at low temperatures. The soil layer may include a first soil layer and a second soil layer. The step of arranging a soil layer may include: providing the first soil layer in the cultivation layer; arranging the plant on the first soil layer; and providing the second soil layer for covering the plant on the first soil layer.

Abstract translation: 本发明提供使用培养箱的多年生植物的培养方法。 培养方法可以包括在培养箱中设置土壤层和植物的步骤，以及在低温下处理培养箱中的植物的步骤。 土层可以包括第一土层和第二土层。 布置土层的步骤可以包括：在培养层中提供第一土层; 将植物排列在第一层土壤上; 并且提供用于在第一土壤层上覆盖植物的第二土壤层。

公开(公告)号：KR101434276B1

公开(公告)日：2014-08-27

申请号：KR1020130036289

申请日：2013-04-03

Applicant: 서울대학교산학협력단

Inventor： 김기선 ,  이용하 ,  박주현 ,  이승연

IPC: A01G7/06 ,  A01G7/00 ,  A01G1/00 ,  A01G9/24

CPC classification number: A01G7/06 ,  A01G7/00 ,  A01G9/24 ,  A01G22/00

Abstract: The present invention provides a cultivation method of perennial plants. According to an embodiment of the present invention, the cultivation method of perennial plants can include a step of precooling the plants and a step of treating the plants at low temperatures. According to another embodiment of the present invention, the cultivation method of perennial plants can include the steps of: preparing a cultivation box to which the plants and a soil layer are provided; precooling the plants; and treating the plants at low temperatures.

Abstract translation: 本发明提供多年生植物的栽培方法。 根据本发明的一个实施方案，多年生植物的培养方法可以包括对植物进行预冷却的步骤和在低温下处理植物的步骤。 根据本发明的另一个实施方案，多年生植物的培养方法可以包括以下步骤：制备植物和土壤层所在的培养箱; 预冷植物; 并在低温下处理植物。

公开(公告)号：KR1020120115895A

公开(公告)日：2012-10-19

申请号：KR1020110033478

申请日：2011-04-11

Applicant: 서울대학교산학협력단

Inventor： 김성철 ,  이정규 ,  박주현

IPC: G01S5/04

Abstract: PURPOSE: An indoor wireless positioning method with four or more anchor nodes based on a distance estimating mode of receiving signal intensity and a recording medium including a program for the method are provided to obtain a weighted value by directly using a distance value estimated from each anchor node to a blind node. CONSTITUTION: N pieces of estimation distance values from each anchor node to a blind node are calculated (S42). The size of used estimated distances is used to obtain a weighted value. The weighted value is separately applied to a corresponding location estimation value(S44,S46). If N is 4, the obtained location estimation value is determined as an estimated location of the blind node(S50). If N is greater than 5, a location estimation value of a subset including five elements is obtained. [Reference numerals] (AA, EE, GG) Yes; (BB, DD, FF) No; (CC) IWCA(N,R): function repetitively used(input:N,R); (S40) RSS value; (S42) Calculating an estimated distance between AN and BN; (S46) Trilateration; (S52) Forming the N number of subsets with the (N-1) number of elements For i=1:N Sub_i=R-{r_i} end; (S58) Calculating position informatin x_i corresponding to Sub_i, S_I For i=1:N x_i=IWCA(N-1, Sub_i) end; (S60) Calculating a weighted value w_i to Sub_i and transfering S_i information; (S66) Calculating a weighted value w_i to Sub_i (j->i) N=N+1 j=j-1

Abstract translation: 目的：提供一种基于接收信号强度的距离估计模式的四个或更多个锚节点的室内无线定位方法和包括用于该方法的程序的记录介质，通过直接使用从每个锚估计的距离值来获得加权值 节点到盲节点。 构成：计算从每个锚节点到盲节点的N个估计距离值（S42）。 使用估计距离的大小用于获得加权值。 加权值分别应用于相应的位置估计值（S44，S46）。 如果N为4，则将获得的位置估计值确定为盲节点的估计位置（S50）。 如果N大于5，则获得包括五个元素的子集的位置估计值。 （附图标记）（AA，EE，GG）是; （BB，DD，FF）否; （CC）IWCA（N，R）：重复使用的功能（输入：N，R）; （S40）RSS值; （S42）计算AN与BN之间的估计距离; （S46）三边; （S52）用（N-1）个元素形成N个子集，对于i = 1：N Sub_i = R- {r_i} end; （S58）计算对应于Sub_i，S_I的位置信息x_i对于i = 1：N x_i = IWCA（N-1，Sub_i）结束; （S60）将加权值w_i计算为Sub_i并传送S_i信息; （S66）将加权值w_i计算为Sub_i（j-> i）N = N + 1 j = j-1

公开(公告)号：KR101163335B1

公开(公告)日：2012-07-09

申请号：KR1020110033443

申请日：2011-04-11

Applicant: 서울대학교산학협력단

Inventor： 김성철 ,  이정규 ,  박주현

IPC: G01S5/04

Abstract: PURPOSE: A wireless positioning method based on a distance estimation method of received signal strength using trilateration and a recording medium having a program for performing the same are provided to improve position estimation accuracy. CONSTITUTION: A wireless positioning method based on a distance estimation method of received signal strength using trilateration is as follows. Three estimation distances from three anchor nodes to a blind node are calculated using signal strength received from the anchor nodes, and three actual distances are calculated using the estimation distances(S14). The volume of a tetrahedron formed by the anchor nodes and the blind node is estimated using the estimation and actual distances(S18). The errors of the estimation distances are corrected. The estimation position of the blind node is calculated using the corrected estimation distances(S22).

Abstract translation: 目的：提供一种基于使用三边测量的接收信号强度的距离估计方法和具有用于执行该方法的程序的记录介质的无线定位方法，以提高位置估计精度。 构成：基于使用三边测量的接收信号强度的距离估计方法的无线定位方法如下。 使用从锚节点接收的信号强度来计算从三个锚节点到盲节点的三个估计距离，并且使用估计距离计算三个实际距离（S14）。 使用估计和实际距离来估计由锚节点和盲节点形成的四面体的体积（S18）。 校正距离的误差。 使用校正的估计距离来计算盲节点的估计位置（S22）。

公开(公告)号：KR101213363B1

公开(公告)日：2012-12-18

申请号：KR1020110033478

申请日：2011-04-11

Applicant: 서울대학교산학협력단

Inventor： 김성철 ,  이정규 ,  박주현

IPC: G01S5/04

Abstract: 4개이상의앵커노드를이용하는최소제곱법기반무선측위방법의정확도개선을위한방법이개시된다.개의추정거리값을원소로포함하는모집합을각 앵커노드별로원소의개수가 3개인부분집합들로분할한다. 원소의개수인각 부분집합에대하여삼변측량을이용하여위치추정값을산출한다. 삼변측량을이용할때, 비교차케이스에관한후처리를통해추정거리에관한오차를보정하면정확도가더욱개선된다. 각앵커노드별로위치추정값에가중치를적용하여원소의개수가 4개인부분집합각각에대한위치추정값을산출한다. 같은방법으로, 앞서구한 4개의원소를갖는부분집합의위치추정값과이에관련된가중치(가중치는위치추정값에관련된추정거리값을이용하여산출됨)를이용하여다시 5개의원소를갖는부분집합의위치추정값을구하고, 이와같이원소의개수가 1개더 많은상위부분집합에대한위치추정값을구하는것을반복적으로수행하여, N 개의추정거리값을이용했을때의위치추정값을구한다.