JPS59121408A - Controller of mobile robot - Google Patents

Controller of mobile robot

Info

Publication number
JPS59121408A
JPS59121408A JP57232269A JP23226982A JPS59121408A JP S59121408 A JPS59121408 A JP S59121408A JP 57232269 A JP57232269 A JP 57232269A JP 23226982 A JP23226982 A JP 23226982A JP S59121408 A JPS59121408 A JP S59121408A
Authority
JP
Japan
Prior art keywords
robot
sensor
traveling
sensors
detected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP57232269A
Other languages
Japanese (ja)
Inventor
Tsuneo Takahashi
常夫 高橋
Shinichiro Yasui
安井 慎一郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Automax Co Ltd
Original Assignee
Honda Motor Co Ltd
Automax Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd, Automax Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP57232269A priority Critical patent/JPS59121408A/en
Publication of JPS59121408A publication Critical patent/JPS59121408A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • G05D1/02Control of position or course in two dimensions
    • G05D1/021Control of position or course in two dimensions specially adapted to land vehicles
    • G05D1/0212Control of position or course in two dimensions specially adapted to land vehicles with means for defining a desired trajectory
    • G05D1/0221Control of position or course in two dimensions specially adapted to land vehicles with means for defining a desired trajectory involving a learning process

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)

Abstract

PURPOSE:To change easily the setting of traveling path by a robot itself by controlling the learning traveling of the robot which is carried out along an obstacle in response to the output state of an obstacle sensor. CONSTITUTION:Sensors S1, S2 and S3 are set at the front part, the side front part and the side rear part of a robot R respectively to detect the obstacles existing at the front and side parts of the robot R with a fixed distance respectively. The states of detection of these sensors are read at an arithmetic control part 5, and at the same time, the robot R is guided so that the sensors S2 and S3 detect a wall surface respectively as long as the wall surfaces is not detected by the sensor 1 in a section (a-b). While the robot R is steered to the right when the front wall surface is detected by the sensor S1 at a point (b) and then steered to the left when the wall surface is detected by only the sensor S3 at a pint (c). Thus the robot R is guided to have the self-traveling along the wall surface.

Description

【発明の詳細な説明】 本発明は、予定の走行路上を無人走行する移動ロボット
の制御装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for a mobile robot that runs unmanned on a scheduled running route.

従来、この種の移動ロボットにあっては、予定の走行路
に沿って配設さ几た誘導ケーブルからの磁界乞センザに
よって検知しながら、あるいは走行路に沿つて配設さf
′した光学的なテープやマーク乞センサによって検知し
ながら一定の走行ノぐターンにしたがう無人走行を行な
わせるようにしており、ロボットの誘導手段を別途膜け
なけnばならず、走行路の設定、変更、保守などが煩雑
なものになってしまっている。
Conventionally, in this type of mobile robot, the magnetic field is detected by a sensor that generates a magnetic field from a carefully arranged guide cable arranged along the planned running route, or
The robot runs unmanned according to a certain number of turns while being detected by an optical tape and a mark sensor. , changes, maintenance, etc. have become complicated.

まfC1従米、ロボット自体にプログラム装置v組み込
み、その設定プログラムにしたがってロボットの自動操
縦を行なわせることにより、一定の走行パターンによる
ロボットの走行制御を行なわせるようにしたものが開発
さ几ているが、そ几によってもロボットの走行路を変え
るにはその都度プログラムの設定変更を行なわせなけ几
ばならず、自在性に欠けるものになっている。
In the US, a robot has been developed in which a programming device is built into the robot itself, and the robot automatically operates according to the setting program, thereby controlling the robot's travel according to a fixed travel pattern. However, depending on the method, changing the robot's travel path requires changing the program settings each time, resulting in a lack of flexibility.

本発明扛以上の点を考慮してなされたもので、ロボット
自身に走行路の学習機能をもたせ、自在に学習させた走
行路にしたがってロボットの無人定行χ行なわせるよう
にしたコンビ1−タシステムによる移動ロボットの制御
装置ン提供するものである。
The present invention has been made in consideration of the above points, and is a combination system in which the robot itself is provided with a learning function of the traveling route, and the robot is made to perform an unmanned routine according to the freely learned traveling route. The present invention provides a control device for a mobile robot.

以下、添付図面を参照して本発明の一実施例について詳
述する。
Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

第1図は本発明による移動ロボットの制御装置の基本構
成を示すもので、例えは移動ロボットの走行車輪の回転
に比例したパルス信号を出力する元電式、電磁式ま7t
+は機械接点式などからなる距離センサlと、例えばヨ
一方向の角速度を検出するレート式のジャイロスコープ
、ガスレートセンナなどからなるロボットの移動方向の
変化に比例した信号を出力する方向センサ2と、ロボッ
トの走行に支障となる壁や溝などの障害物を検出する障
害物検出センナ群3と、距離センサlからのパルス信号
tカウントしてロボットの走行距離を計測するとともに
、方向センサ2の出力からロボットの移動方向を判定し
【ロボットの単位走行距離ごとの2次元座標上における
現在位置を刻々と演算によりて求めながら、障害物検出
センサ群3からの検出信号状態に応じてロボットの走行
誘導の制御をなしてその駆動部4に走行指令?適宜与え
、かつ装置全体の集中制御馨行なわせる演算制御部5と
、その演算制御部5によって刻々と求めらnた現在位置
および定行方向のデータ?順次格納して連続情報として
保持する記憶部6と、ロボットの走行軌跡および現在の
進行方向乞刻々更新表示させるCRT表示部7と、シス
テム圧電源のオン。
FIG. 1 shows the basic configuration of a control device for a mobile robot according to the present invention.
+ indicates a distance sensor l consisting of a mechanical contact type, etc., and a direction sensor 2 that outputs a signal proportional to a change in the robot's movement direction, consisting of a rate type gyroscope, gas rate sensor, etc. that detects the angular velocity in one direction, for example. , an obstacle detection sensor group 3 that detects obstacles such as walls and grooves that impede the robot's movement, and a direction sensor 2 that measures the distance traveled by the robot by counting pulse signals t from a distance sensor 1. The direction of movement of the robot is determined from the output of Controls the travel guidance and issues a travel command to the drive unit 4? An arithmetic and control section 5 provides data as appropriate and performs centralized control of the entire device, and data on the current position and heading direction that are obtained moment by moment by the arithmetic and control section 5. The storage section 6 stores sequential information and holds it as continuous information, the CRT display section 7 updates and displays the robot's travel trajectory and current direction of travel, and the system pressure power source is turned on.

オフ、走行モードの切換え、スタート位置の設定。Off, switching driving mode, setting start position.

CRT 表示部7における表示縮尺率などの表示形態の
設定変更、方向センサ2の感度調整などを適宜性なわせ
ることのできる操作部8とによって構成され、そnら全
ての構成部分がロボットに搭載さnている。なお、ロボ
ットの駆動部4は、例えばロボットの左、右の駆動輪に
そルぞn設けた駆動用モータ(直流サーボモーフまたに
ステップモータ)V−tの回転量のフィードバック制御
tなしながら独立的にget、て、操舵をも行なわせる
ことができるようになっている。また、障害物検出セン
ナ群3としては超音波センサ、タッチセンサ。
It is composed of an operation section 8 that can change the display format settings such as the display scale rate on the CRT display section 7, and adjust the sensitivity of the direction sensor 2 as appropriate.All these components are mounted on the robot. I'm here. Note that the drive unit 4 of the robot operates independently without feedback control of the amount of rotation of drive motors (DC servomorphs or step motors) Vt provided on the left and right drive wheels of the robot, for example. It is now possible to get the vehicle to perform steering as well. Further, the obstacle detection sensor group 3 includes an ultrasonic sensor and a touch sensor.

ITVカメラなどの障害物の有無や障害物までの距離を
検知することのできる各種センサが用いら几、そnら各
センサが移動ロボットの周囲に適宜配設さル、ロボット
の走行時に障害物が検出さ几たときには、そのときのセ
ンナ出方に応じて演算制御部5においてその障害物を回
避するようなロボットの込動制御が実行さnるようlC
なっている。また、記憶部6には検出さnた障害物に関
するデータ、その他制御に必要なデータが保持、格納さ
几る。
Various sensors such as ITV cameras that can detect the presence or absence of obstacles and the distance to the obstacles are used, and these sensors are appropriately placed around the mobile robot to detect obstacles when the robot is moving. When the obstacle is detected, the calculation control unit 5 executes the control of the robot to avoid the obstacle according to the way the sensor appears at that time.
It has become. Further, the storage unit 6 holds and stores data regarding detected obstacles and other data necessary for control.

このように病成さn7’(ものにあって、特に本発明で
はロボットの学習走行によって走行路または移動範囲ン
知得させる際、ロボットに取り付けらnた障害物検出セ
ンナ群3をロボットの目として用いることにより、例え
ば第2図に示すようにロボットを壁面などの障害物に沿
って自走させることによってロボット自身で学習走行を
行なわせるよ5FCすることを特徴としている。
In particular, in the present invention, when the robot learns the travel path or movement range by learning the robot, the obstacle detection sensor group 3 attached to the robot is By using the robot as a robot, for example, as shown in FIG. 2, the robot is characterized by 5FC, which allows the robot to run on its own by running along obstacles such as walls, thereby making the robot perform a learning run on its own.

すなわち、ロボツ)Hの前部に第1のセンナ81を、そ
の側部前方に第2のセンサ82を、同側部後方に第3の
セ/すS3y!−そ几ぞn設け、各センサ5t−83i
cJ:ツて一定距離(20cIn程度)にある前号およ
び側方のの各障害物馨検知することができるようにし、
それら各センサ81−83の検知状態?演算制御部5に
より読みとらせながら、第2図中a −b区間ではセン
サSlによって壁面が検知さルていないことを条件とし
てセンサ82.S3によってともに壁面が検知さ几るよ
りにロボット凡ン誘導し、b点でセンサ5IICJ:t
て前号の壁面が検知さnたときには右方に操舵させ、0
点でセンサS3のみによ、て壁面が検知さnていること
を条件として左方に操舵させることによって、ロボツ)
Rが壁面に沿って自走するような走行誘導の制nw行な
わせよようにしている。
That is, the first sensor 81 is placed in the front of the robot (Robot) H, the second sensor 82 is placed in front of the side thereof, and the third sensor 82 is placed in the rear of the same side. -Each sensor 5t-83i
cJ: It is possible to detect each obstacle on the front and side at a certain distance (approximately 20 cIn),
Detection status of each of those sensors 81-83? While being read by the arithmetic control unit 5, the sensor 82. When both walls are detected by S3, the robot is guided, and at point b, sensor 5IICJ:t
When the previous wall is detected, steer to the right and zero.
(By steering the robot to the left on the condition that the wall is detected only by sensor S3 at the point)
I am trying to control the travel guidance so that R can run on its own along the wall surface.

以下、本発明による移動ロボットの制御装置の動作につ
いて説明する。
The operation of the mobile robot control device according to the present invention will be explained below.

まず、ロボットを第3図に示すスタート位置Sにつかせ
たうえで、操作部8によりシステムを学習走行モードに
設定するとともに、操作部8のセットボタンを押して2
次元座標上におけるスタート点(Xo+yo)および進
行方向の基準θoンそ几ぞ几演算制御部5に設定させる
。次いで、前述した壁面などの障害物に沿うロボットの
学習走行を開始させると、演算制御部5は距離センサl
および方向センサ2からそ几ぞn送らnてくる信号にも
とづいて2次元座標上におけるロボットの現在位置(x
 v y )および進行方向θを刻々と演算によって求
め、その演算結果を記憶部6に逐次送って記憶保持させ
る。また、演算制御部5は、記憶部6の保持内容にした
がってCRT 表示部7にロボットの走行軌跡の表示を
行なわせていく。しかして、ロボットが全コースCy4
−学習走行することに、に5、その走行コースCの2次
元座標上における連続した位置に関するデータが記憶部
6に記憶保持さ几ることになる。また、CRT表示部7
に表示さnたロボットの走行軌跡によって学習した走行
コースCtモニタすることができるようIC7zる。
First, after placing the robot at the starting position S shown in Fig. 3, set the system to the learning running mode using the operating section 8, and press the set button on the operating section 8 to set the system to the learning running mode.
The starting point (Xo+yo) on the dimensional coordinates and the standard θon of the traveling direction are set in the calculation control unit 5 accordingly. Next, when the robot starts a learning run along an obstacle such as a wall, the arithmetic control unit 5 activates the distance sensor l.
The current position of the robot on the two-dimensional coordinates (x
v y ) and the traveling direction θ are calculated moment by moment, and the calculation results are sequentially sent to the storage unit 6 for storage and retention. Further, the arithmetic control section 5 causes the CRT display section 7 to display the traveling trajectory of the robot according to the contents held in the storage section 6. However, robots are all courses Cy4
- During the learning run, data regarding consecutive positions on the two-dimensional coordinates of the driving course C are stored in the storage unit 6. In addition, the CRT display section 7
The IC7z allows the learned travel course Ct to be monitored based on the robot travel trajectory displayed on the IC7z.

次に、学習走行が完了したのちにロボットをスタート位
置Sにつかせたうえで、操作部8[よりシステムを無人
走行モードVC切り換えると、演算制御部5に記憶部6
に記憶さnている学習走行時のデータにもとづいてロボ
ットの移動可能領域を判断し、その領域内で予め設定さ
A7を走行パターン(そのパターンデータが演算制御部
5の内部メモリに登録さnている)をもってロボットの
走行誘導を開始させる。
Next, after the learning run is completed, the robot is placed at the start position S, and when the system is switched to the unmanned running mode VC using the operation unit 8, the arithmetic and control unit 5 is
The movable area of the robot is determined based on the data during the learning run stored in the area, and A7 is set in advance within that area as a running pattern (the pattern data is registered in the internal memory of the arithmetic control unit 5). ) to start guiding the robot.

第4図り例えばロボットにスィーパ一式による床面清掃
ユニットを搭載して室内の清掃作業を行なわせるように
したときの走行パターンの一例を示すもので、室の壁面
に沿ってロボット’に学習走行させることによって得ら
几たロボットの移動可能領域Aから、演算制御部5にそ
の領域A内の床面をスィーパ−によって順次清掃するこ
とができるようなパターンにしたがう走行路Li予め決
めらf′1.た演算手順により作成し、その走行路りの
2次元座標上に2ける位置のデータン記憶部6にロボッ
トの無人走行時の誘導データとして保持させる。その際
、演算制御部5は、距離センサ1および方向センサ2か
らの信号に応じて2次元座標上における現在位置および
進行方向の確認を行ないながら、ロボットが予定の走行
路Lηλら外nることがないよりにその走行誘導の監視
制御を行なう。
The fourth figure shows an example of a running pattern when a robot is equipped with a floor cleaning unit consisting of a sweeper set and is made to perform indoor cleaning work.The robot' is made to learn to run along the walls of a room. From the movable area A of the robot obtained by this method, the arithmetic and control unit 5 predetermines a running path f'1 according to a pattern that allows the sweeper to sequentially clean the floor surface within the area A. .. The information is created using the calculation procedure described above, and is stored in the data storage unit 6 at the position of 2 on the two-dimensional coordinates of the travel route as guidance data during unmanned travel of the robot. At this time, the arithmetic control unit 5 checks the current position and traveling direction on the two-dimensional coordinates according to the signals from the distance sensor 1 and the direction sensor 2, and makes sure that the robot does not deviate from the planned travel path Lηλ. Monitoring and control of the driving guidance is performed rather than nothing.

また、例えば第5図に示すように、通路の壁面に沿って
ロボットビリモートコントロールによって走行させたと
きの学習走行により得らnたデータから、演算制御部5
はその通路の真ん中を通る走行路LY決定し、その走行
路り上ピロボットが無人走行するような走行誘導の制御
をも容易に行なわせることが可能となる。
For example, as shown in FIG.
It becomes possible to determine the traveling route LY passing through the middle of the passage, and to easily control the traveling guidance so that the pilot robot runs unmanned on the traveling route.

以上、本発明による移動ロボットの制御装置にあっては
、ロボット自身に走行路または走行領域の学習機能tも
たせ、その学習内容にしたがつてロボットの所定の無人
定行を行なわせるようにしたもので、従来のようにロボ
ットの誘導手段を別途に設ける必要が全くなく、またプ
ログラムの設定変更をなすようなことなく走行路の設定
変更ピロボット自身により容易に行なわせることができ
、自在性にinたものになるという利点ン有している。
As described above, in the control device for a mobile robot according to the present invention, the robot itself is provided with a learning function of the traveling route or the traveling area, and the robot is made to perform a predetermined unmanned routine according to the learning content. Therefore, there is no need to provide a separate guide means for the robot as in the past, and the robot itself can easily change the travel path settings without changing the program settings. It has the advantage of being a valuable asset.

【図面の簡単な説明】[Brief explanation of drawings]

第1図に本発明による移動ロボットの制御装置の一実施
例〉示すブロック構成図、第2図はロポy)の自走学習
時における走行状態の一例を示す図、第3図にロボット
の学習走行の状態7示す図、第4図および第5図は学習
走行によつて得た走行可能領域内におけるロボットの走
行ノくターンの一例乞そルぞ几示す図である。 1・・・距離センサ 2・・・方向センサ 3・・・障
害物検出センサ群 4・・・駆動部 5・・・演算制御
部 6・・・記憶部 7・・・CRT表示部 8・・・
操作部 出願人代理人  鳥 井  清 第1図 第2図
Fig. 1 is a block configuration diagram showing an embodiment of a mobile robot control device according to the present invention, Fig. 2 is a diagram showing an example of a running state during self-propelled learning of robot y), and Fig. 3 is a diagram showing an example of the robot's learning state. FIGS. 4 and 5, which show the traveling state 7, are diagrams showing examples of the robot's traveling turns within the travelable area obtained through the learning traveling. DESCRIPTION OF SYMBOLS 1... Distance sensor 2... Direction sensor 3... Obstacle detection sensor group 4... Drive unit 5... Arithmetic control unit 6... Storage unit 7... CRT display unit 8...・
Operation Department Applicant's Representative Kiyoshi Torii Figure 1 Figure 2

Claims (1)

【特許請求の範囲】[Claims] ロボットの走行距離音検出する第1のセンサと、その走
行にともなう方向の変化を検出する第2のセンサと、そ
几ら第1および第2のセンサの各出力にもとづいてロボ
ットの単位走行距離ごとの2次元座標上の位置Y演算に
よって求める演算制御部と、その求めらnた刻々変化す
る位置のデータ乞順次格納して保持する記憶部とからな
り、ロボットの学習走行によって記憶部に保持させたデ
ータにもとづいて演算制御部によりロボットの走行誘導
の制御7行なわせるようにしたものにあって、障害物検
出センサの出力状態に応じて障害物に沿うロボットの学
習走行の制御を行なわせる手段をとるようにしたことビ
特徴とする移動ロボットの制御装置。
A first sensor detects sound of the distance traveled by the robot, a second sensor detects changes in direction as the robot travels, and a unit distance traveled by the robot is determined based on the outputs of the first and second sensors. It consists of a calculation control unit that calculates the position Y on the two-dimensional coordinates for each time, and a storage unit that sequentially stores and retains the data of the determined position that changes every moment. In this system, the arithmetic control unit performs seven steps of controlling the robot's travel guidance based on the data obtained, and the robot's learning travel along the obstacle is controlled in accordance with the output state of the obstacle detection sensor. A control device for a mobile robot, characterized in that it takes the following measures.
JP57232269A 1982-12-24 1982-12-24 Controller of mobile robot Pending JPS59121408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57232269A JPS59121408A (en) 1982-12-24 1982-12-24 Controller of mobile robot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57232269A JPS59121408A (en) 1982-12-24 1982-12-24 Controller of mobile robot

Publications (1)

Publication Number Publication Date
JPS59121408A true JPS59121408A (en) 1984-07-13

Family

ID=16936594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57232269A Pending JPS59121408A (en) 1982-12-24 1982-12-24 Controller of mobile robot

Country Status (1)

Country Link
JP (1) JPS59121408A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59188193U (en) * 1983-05-31 1984-12-13 株式会社明電舎 work robot equipment
JPS62293320A (en) * 1986-06-12 1987-12-19 Kajima Corp Self-traveling robot
JPS6397482U (en) * 1986-12-16 1988-06-23
JPH01293408A (en) * 1988-05-20 1989-11-27 Matsushita Electric Ind Co Ltd Self-travelling system cleaner
JPH03135609A (en) * 1989-08-12 1991-06-10 Nippon Yusoki Co Ltd Precise stop method for omnidirectional mobile vehicle
JPH0884696A (en) * 1994-09-16 1996-04-02 Fuji Heavy Ind Ltd Cleaning robot control method and device therefor
JP2002244735A (en) * 2001-02-14 2002-08-30 Sanyo Electric Co Ltd Autonomous running robot
JP2005100421A (en) * 2004-10-01 2005-04-14 Fujitsu Ltd Learning type self-localization device
KR20050061775A (en) * 2003-12-18 2005-06-23 주식회사 영텍 Cleaning method of cleaning robot
KR100772912B1 (en) * 2006-05-16 2007-11-05 삼성전자주식회사 Robot using absolute azimuth and method for mapping by the robot

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5238305A (en) * 1975-09-19 1977-03-24 Yanmar Agricult Equip Movable agriculturale machinery

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5238305A (en) * 1975-09-19 1977-03-24 Yanmar Agricult Equip Movable agriculturale machinery

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59188193U (en) * 1983-05-31 1984-12-13 株式会社明電舎 work robot equipment
JPH0445826Y2 (en) * 1983-05-31 1992-10-28
JPS62293320A (en) * 1986-06-12 1987-12-19 Kajima Corp Self-traveling robot
JPS6397482U (en) * 1986-12-16 1988-06-23
JPH0437736Y2 (en) * 1986-12-16 1992-09-04
JPH01293408A (en) * 1988-05-20 1989-11-27 Matsushita Electric Ind Co Ltd Self-travelling system cleaner
JPH03135609A (en) * 1989-08-12 1991-06-10 Nippon Yusoki Co Ltd Precise stop method for omnidirectional mobile vehicle
JPH0884696A (en) * 1994-09-16 1996-04-02 Fuji Heavy Ind Ltd Cleaning robot control method and device therefor
JP2002244735A (en) * 2001-02-14 2002-08-30 Sanyo Electric Co Ltd Autonomous running robot
KR20050061775A (en) * 2003-12-18 2005-06-23 주식회사 영텍 Cleaning method of cleaning robot
JP2005100421A (en) * 2004-10-01 2005-04-14 Fujitsu Ltd Learning type self-localization device
KR100772912B1 (en) * 2006-05-16 2007-11-05 삼성전자주식회사 Robot using absolute azimuth and method for mapping by the robot

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