JP2004303134A - Vehicle - Google Patents

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Publication number
JP2004303134A
JP2004303134A JP2003097875A JP2003097875A JP2004303134A JP 2004303134 A JP2004303134 A JP 2004303134A JP 2003097875 A JP2003097875 A JP 2003097875A JP 2003097875 A JP2003097875 A JP 2003097875A JP 2004303134 A JP2004303134 A JP 2004303134A
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JP
Japan
Prior art keywords
traveling
main body
inclination
altitude
detecting
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.)
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Application number
JP2003097875A
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Japanese (ja)
Inventor
Hirotsugu Kamiya
洋次 上谷
Tetsuya Koda
哲也 甲田
Keiko Noda
桂子 野田
Yumiko Hara
由美子 原
Hiroaki Kako
裕章 加来
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2003097875A priority Critical patent/JP2004303134A/en
Publication of JP2004303134A publication Critical patent/JP2004303134A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that the main body of a vehicle inclines and falls when climbing over a difference in level, that the vehicle wheels derail to the difference in level or that the main body inclines and drops. <P>SOLUTION: This vehicle is configured so that its distance with a traveling surface can be detected by a traveling surface distance detecting means 1, that its inclination to the main body gravity direction can be detected by a vertical inclination detecting means 2, and that the traveling can be controlled by a control means 3. Thus, the vehicle is able to travel while passing through or escaping from the difference in level without falling. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、走行により物を運搬する、または移動してあるいは移動しながら作業等をする走行装置に関するものである。
【0002】
【従来の技術】
従来、軽トラックの荷台に積んで、あるいは人が台車を押して物を運搬する、人が芝刈り機を押しながら芝を刈る、人が農薬を担いで歩きながら散布する、掃除機を引いて歩きながら掃除をする等の、運搬あるいは作業をする走行装置がある。また、駆動輪の上下動範囲を大きくして段差乗り越えを容易にしているものもある(例えば、特許文献1参照)。
【0003】
【特許文献1】
特開2003−33310号公報
【0004】
【発明が解決しようとする課題】
前記従来の走行装置は本体が例えば凸段差を乗り越えようとして傾いて転倒する、あるいは凹段差に走行車輪が脱輪するあるいは本体が傾いて落下するという課題がある。本発明は上記従来の課題を解決した走行装置を提供しようとするものである。
【0005】
【課題を解決するための手段】
本発明は前記従来の課題を解決するもので、本体前端部底面と走行面との距離を検出する走行面距離検出手段と、本体の重力方向に対する傾きを検出する鉛直傾き検出手段と、走行面距離検出手段と鉛直傾き検出手段との出力を入力し走行を制御する制御手段とを備える走行装置としているものである。
【0006】
これにより、走行面の段差の大きさを検知し通過が可能か確認しながら、また、乗り上げ時あるいは下降時等の本体の傾きを検知し本体の転倒を防止しながら走行することが可能な走行装置とすることができる。
【0007】
【発明の実施の形態】
請求項1に記載した発明は、本体前端部底面と走行面との距離を検出する走行面距離検出手段と、本体の重力方向に対する傾きを検出する鉛直傾き検出手段と、走行面距離検出手段と鉛直傾き検出手段との出力を入力し走行を制御する制御手段とを備えることにより走行面の段差の大きさを検知し通過が可能か確認しながら、また、乗り上げ時あるいは下降時等の本体の傾きを検知し本体の転倒を防止しながら走行することが可能な走行装置とすることができる。
【0008】
請求項2に記載した発明は、本体の高度を検出する高度検出手段を有することにより、本体の高さ例えば建物の何階を走行しているかを確認しながら走行することが可能な走行装置とすることができる。
【0009】
請求項3に記載した発明は、本体の底面前部あるいは底面後部と、走行面あるいは走行面上の障害物との摩擦を軽減する摩擦軽減手段を有することにより、スムーズに小さな衝撃で段差を乗り越えることが可能な走行装置とすることができる。
【0010】
請求項4に記載した発明は、使用者が本体を鉛直に対して所定の傾き(例えば水平)に置いたことを入力する指定傾き入力手段を有することにより、使用者が指定する傾きを基準傾きとし、装置が検知している傾きとのずれを補正し正確な傾きを検知しながら走行することが可能な走行装置とすることができる。
【0011】
請求項5に記載した発明は、使用者が本体を指定の高度に置いたことを入力する指定高度入力手段を有することにより、使用者が指定した高度を基準とし、装置が検知している高度を補正し正確な高度を検知しながら走行することが可能な走行装置とすることができる。
【0012】
請求項6に記載した発明は、制御手段は本体と走行面の距離および本体の傾きとから走行面の勾配を算出し、上り、水平あるいは下りの走行制御を補正することにより、本体にかかる重力の影響を確認しながら適正速度で走行することが可能な走行装置とすることができる。
【0013】
請求項7に記載した発明は、複数の走行面を昇降して接続する昇降装置との通信手段を有し、制御手段は、本体を第1の所定の高度で昇降装置に乗降させることにより、昇降装置を利用して指定の階を走行することができる走行装置とすることができる。
【0014】
請求項8に記載した発明は、複数の高度の走行面をスロープで接続し、制御手段は、本体を第2の所定の高度でスロープに入出させることにより、スロープを利用して指定の高さの走行面を走行することが可能な走行装置とすることができる。
【0015】
【実施例】
以下本発明の実施例について図を参照しながら説明する。
【0016】
(実施例1)
図1〜図6に基づいて本発明の第1の実施例について説明する。図1は本実施例の走行装置のブロック図である。本実施例の走行装置は、あらかじめ走行経路から障害物を除いたあるいは障害物が経路に侵入しない場所で走行経路を記憶させて使用するものを示している。
【0017】
図1において、1は走行装置10の本体前端部底面と走行面との距離を検出する走行面距離検出手段で、制御手段3に出力する。走行面距離検出手段1は走行装置10の前端部に配置され光を発光する発光素子と走行面で反射した光を受光する受光素子と信号増幅器等で構成される。2は走行装置10の本体の重力方向に対する傾きを検出する鉛直傾き検出手段で制御手段3に出力する。鉛直傾き検出手段2は重力を検知する重りと重りの位置を検出する位置検出素子と信号増幅器等で構成される。5は走行装置10の本体の高度を検出する高度検出手段で制御手段3に出力する。高度検出手段5は気圧の変化を検知する圧力検知素子と信号増幅器と周囲温度を検知する温度検知素子等で構成される。4は走行手段で制御手段3の出力を入力し装置を走行あるいは回転する。走行手段4は車輪と駆動モータ等で構成される。6は使用者が操作する指定傾き入力手段で操作結果を制御手段3に出力する。7は使用者が操作する指定高度入力手段で操作結果を制御手段3に出力する。指定傾き入力手段6及び指定高度入力手段は操作するスイッチあるいは操作内容を確認するLCD等の表示素子等で構成する。8は複数の高度の走行面を昇降して接続し走行装置10を載せて昇降する昇降装置9と通信をする通信手段で制御手段に入出力する。通信手段8は無線信号を受信する受信素子と増幅器と無線信号を送信する送信素子等で構成される。
【0018】
以下、本実施例の動作について説明する。図示していない走行装置の使用スイッチを使用側に操作すると、制御手段3が動作を開始し走行手段4を制御して走行面距離検出手段1で走行面との距離あるいは走行面の段差を、鉛直傾き検出手段2で本体の傾きを確認しながらあらかじめ記憶された方位まで回転あるいはあらかじめ記憶された走行距離を確認しながら走行をする。
【0019】
例えば敷居、絨毯の縁等の乗り越え可能の小さな凸段差があると走行距離検出手段1で段差の大きさを検出し制御手段3で判定して鉛直傾き検出手段2で本体の傾きを確認しながら走行手段4を制御して段差を乗り越える。壁あるいは障害物等があり乗り越え不可能と判定すると走行手段4を制御して段差を回避する回避走行をする。
【0020】
また、絨毯の縁等の下降可能な小さな凹段差があると走行面距離検出手段で段差の大きさの検出をし、制御手段3で判定して鉛直傾き検出手段2で本体の傾きを確認しながら走行手段4を制御して段差を下降する。階段あるいは玄関等があり下降不可能と判定すると走行手段4を制御して段差を回避する回避走行をする。
【0021】
従って、走行面の段差の大きさを検知し通過が可能か確認しながら、また、乗り上げ時あるいは下降時等の本体の傾きを検知し本体の転倒を防止しながら走行することが可能な走行装置とすることができる。
【0022】
また、高度検出手段5を有するので、高度を検出しあらかじめ記憶された各階の高度と比較し装置が建物の何階を走行しているか確認する。従って、建物の何階を走行しているかを確認しながら走行することが可能な走行装置とすることができる。
【0023】
また、指定傾き入力手段6を有するので、使用者が走行装置10を水平な走行面に置いたことを入力し傾きの基準とする。従って、走行装置10が検知している傾きとのずれを補正し正確な傾きを検知しながら走行することが可能な走行装置とすることができる。
【0024】
また、指定高度入力手段7を有するので、使用者が走行装置10を1階の走行面に置いたことを入力し高度の基準とする。従って、走行装置10が検知している高度のずれを補正し正確な高度を検知しながら走行することが可能な走行装置とすることができる。
【0025】
また、複数の高度の走行面を昇降して接続し走行装置10を載せて昇降する昇降装置9と通信をする通信手段を有するので、通信手段8を介して昇降装置9と通信し、あらかじめ指定された階で乗ってあらかじめ指定された高度の階で昇降装置9を停止させで降り走行する。従って、複数の指定した階の走行面を走行することが可能な走行装置とすることができる。
【0026】
図2は本発明の走行装置の構成図である。図2において、21は左駆動モータで制御手段14の出力を入力し左車輪20を正転、逆転あるいは停止する。23は右駆動モータで制御手段14の出力を入力し右車輪22を正転、逆転あるいは停止する。19は補助輪で左右の車輪20、22と共に本体底面を3点で支える。
【0027】
右車輪22と左車輪20を前向き(回転方向は反対)に回転すると前進し、右車輪22を前向き、左車輪20を後ろ向きに回転する(回転方向は同じ)とその場で右回りに回転する。27a、27bは本体の底面前部に配置された摩擦軽減手段である。11は本体に水平に配置された鉛直傾き検出手段で本体の重力方向に対する傾きを検出し出力は制御手段14に入力する。26は本体前端部に配置された走行面距離検出手段で走行面25との距離を検出し出力は制御手段14に入力する。
【0028】
図3(a)、(b)は段差を乗り越える時のイメージ図である。図3(a)に示すように進行方向に小さな凸段差30があると本体10の底面前部に配置された摩擦軽減手段27と段差30が接触し小さな摩擦で段差を乗り上げる。図3(b)で示すように乗り上げ後も段差30の凸面と摩擦軽減手段27が接触し小さな摩擦で走行する。
【0029】
従って、スムーズに小さな衝撃で段差を乗り越えることが可能な走行装置とすることができる。摩擦軽減手段27は回転可能に保持すると転がり摩擦となり摩擦が小さくなる。また、柔らかな材質例えば弾性材で構成すると段差に衝突した際の衝撃を小さくできる。
【0030】
図4(a)、(b)、(c)は鉛直傾き検知手段51の走行面の傾きに対する動作のイメージ図である。図4(a)は進行方向が上向きの上り坂の場合で本体の水平方向(走行面55と本体の距離が所定の大きさで本体が傾いてなければ走行面55と平行)と鉛直方向が為す角a°は鈍角になり進行方向と反対に重力が働くので車輪の駆動トルクを大きくする。図4(b)は走行面が水平の場合で本体の水平方向と鉛直方向が為す角b°は直角になり進行方向は重力の影響を受けない。図4(c)は進行方向が下向きの下り坂の場合で本体の水平方向と鉛直方向が為す角c°は鋭角になり進行方向と同じ方向に重力が働くので車輪の駆動トルクを小さくする。
【0031】
従って、走行面の傾きを検知し本体にかかる重力の影響を確認しながら適正速度で走行することが可能な走行装置とすることができる。
【0032】
図5は走行装置70が昇降装置72と通信して複数の走行面に移動するイメージ図である。図5において、昇降装置72は昇降することにより高度Ldの走行面71aと、高度Leの走行面71bと、高度Lfの走行面71cとを接続する。走行装置70は走行装置72と通信し現在の階で停止させ、昇降装置72に乗り昇降装置72と通信し上昇運転をする。次ぎに、高度を確認しながら待機し、所定の高度例えばLeになると昇降装置72と通信して昇降装置を停止し、走行面71bに降りて走行する。
【0033】
従って、昇降装置を利用して複数の指定の階を走行することが可能な走行装置とすることができる。
【0034】
図6は複数の高度Laの走行面61aと、高度Lbの走行面61bと、高度Lcの走行面61cとをスロープ62aと、スロープ62bとで接続し走行装置60が移動するイメージ図である。図6において、走行装置60は指定の高度例えばLbの走行面61bに移動するのに現在の走行面61aからスロープ62aに入り高度を確認しながら上り、次ぎに所定の高度Lbを確認するとスロープ62aから出て走行面61bを走行する。
【0035】
従って、スロープを利用して複数の指定の高さの走行面を走行することが可能な走行装置とすることができる。
【0036】
【発明の効果】
以上のように、請求項1〜8に記載した発明によれば、走行面の段差の大きさを検知し通過が可能か確認しながら、また乗り上げ時あるいは下降時等の本体の傾きを検知し本体の転倒を防止しながら走行することが可能な走行装置を実現することができる。
【図面の簡単な説明】
【図1】本発明の実施例1における走行装置のブロック図
【図2】同、走行装置の構成図
【図3】(a)同、走行装置の段差を乗り越える時のイメージ図
(b)同、走行装置の段差を乗り越える時の他のイメージ図
【図4】(a)同、走行装置の鉛直傾き検知手段の、所定の傾きを有する走行面に対する動作のイメージ図
(b)同、走行装置の鉛直傾き検知手段の、他の傾きを有する走行面に対する動作のイメージ図
(c)同、走行装置の鉛直傾き検知手段の、他の傾きを有する走行面に対する動作のイメージ図
【図5】同、走行装置が、昇降装置と通信して複数の走行面に移動するイメージ図
【図6】同、走行装置が、複数の高度の走行面をスロープで接続し、複数の走行面に移動するイメージ図
【符号の説明】
1 走行面距離検出手段
2 鉛直傾き検出手段
3 制御手段
4 走行手段
[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a traveling device that carries an object by traveling, or moves or moves to perform work or the like.
[0002]
[Prior art]
Conventionally, goods are transported by loading on a light truck bed or by pushing a trolley, people mowing the lawn while pushing the lawn mower, people spraying while carrying pesticides, walking with a vacuum cleaner There is a traveling device for carrying or working, such as cleaning while cleaning. Further, there is a vehicle in which the vertical movement range of a drive wheel is increased to make it easy to get over a step (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP 2003-33310 A
[Problems to be solved by the invention]
The conventional traveling apparatus has a problem in that the main body tilts and falls, for example, in order to get over a convex step, or the traveling wheel comes off the concave step or the main body tilts and falls. An object of the present invention is to provide a traveling device that solves the above-mentioned conventional problems.
[0005]
[Means for Solving the Problems]
The present invention solves the above-mentioned conventional problems, comprising: running surface distance detecting means for detecting the distance between the front end bottom surface of the main body and the running surface; vertical inclination detecting means for detecting the inclination of the main body with respect to the direction of gravity; The traveling apparatus includes a control unit that controls traveling by inputting outputs of the distance detection unit and the vertical inclination detection unit.
[0006]
This makes it possible to detect the size of the step on the running surface and check whether it is possible to pass, and also detect the inclination of the main body when riding up or descending, etc. It can be a device.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention described in claim 1 is a running surface distance detecting means for detecting a distance between the bottom surface of the front end of the main body and the running surface, a vertical inclination detecting means for detecting an inclination of the main body with respect to the direction of gravity, and a running surface distance detecting means. By providing the control means for controlling the traveling by inputting the output of the vertical inclination detecting means and detecting the magnitude of the step on the traveling surface and confirming whether or not the vehicle can pass therethrough. A traveling device capable of detecting inclination and traveling while preventing the main body from falling down can be provided.
[0008]
The invention described in claim 2 is a traveling device that can travel while confirming the height of the main body, for example, the floor of the building, by having altitude detection means for detecting the altitude of the main body. can do.
[0009]
The invention described in claim 3 has a friction reducing means for reducing friction between the front or rear bottom portion of the main body and the running surface or an obstacle on the running surface, so that the vehicle can smoothly climb over the step with a small impact. It is possible to provide a traveling device capable of performing the following.
[0010]
According to a fourth aspect of the present invention, by providing a designated inclination input means for inputting that the user has placed the main body at a predetermined inclination (for example, horizontal) with respect to the vertical, the inclination designated by the user can be set to the reference inclination. Thus, it is possible to provide a traveling device capable of correcting a deviation from the inclination detected by the device and traveling while detecting an accurate inclination.
[0011]
The invention described in claim 5 has a designated altitude input means for inputting that the user has placed the main body at the designated altitude, so that the altitude detected by the apparatus is based on the altitude designated by the user. And a traveling device capable of traveling while detecting an accurate altitude.
[0012]
According to a sixth aspect of the present invention, the control means calculates the gradient of the running surface from the distance between the main body and the running surface and the inclination of the main body, and corrects the upward, horizontal, or downward running control, whereby the gravity acting on the main body is corrected. A traveling device capable of traveling at an appropriate speed while confirming the influence of the traveling speed can be provided.
[0013]
The invention according to claim 7 has communication means with an elevating device that connects a plurality of running surfaces by elevating and lowering, and the control means moves the main body on and off the elevating device at a first predetermined altitude, A traveling device that can travel on a designated floor using the lifting device can be provided.
[0014]
In the invention described in claim 8, running surfaces at a plurality of altitudes are connected by a slope, and the control means causes the main body to enter and exit the slope at a second predetermined altitude, thereby using the slope to a designated height. Traveling device capable of traveling on the traveling surface of the vehicle.
[0015]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0016]
(Example 1)
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram of the traveling device of the present embodiment. The traveling apparatus according to the present embodiment is an apparatus that stores and uses a traveling route in a place where obstacles are removed from the traveling route in advance or where the obstacle does not enter the route.
[0017]
In FIG. 1, reference numeral 1 denotes running surface distance detecting means for detecting the distance between the bottom surface of the front end of the main body of the running device 10 and the running surface, which is output to the control means 3. The running surface distance detecting means 1 includes a light emitting element that emits light and a light receiving element that receives light reflected on the running surface, a signal amplifier, and the like. Reference numeral 2 denotes a vertical inclination detecting means for detecting the inclination of the main body of the traveling device 10 with respect to the direction of gravity, which is output to the control means 3. The vertical tilt detecting means 2 includes a weight for detecting gravity, a position detecting element for detecting the position of the weight, a signal amplifier, and the like. Reference numeral 5 denotes an altitude detecting means for detecting the altitude of the main body of the traveling device 10 and outputs it to the control means 3. The altitude detecting means 5 includes a pressure detecting element for detecting a change in atmospheric pressure, a signal amplifier, a temperature detecting element for detecting an ambient temperature, and the like. Numeral 4 denotes a running means for running or rotating the apparatus by inputting the output of the control means 3. The traveling means 4 includes wheels, a drive motor, and the like. Reference numeral 6 denotes a designated tilt input unit operated by the user, and outputs an operation result to the control unit 3. Reference numeral 7 designates a designated altitude input means operated by the user to output an operation result to the control means 3. The designated inclination input means 6 and designated altitude input means are constituted by a switch to be operated or a display element such as an LCD for confirming operation contents. Numeral 8 denotes communication means for communicating with an elevating device 9 for ascending and descending a plurality of altitude running surfaces and connecting the traveling device 10 to ascend and descend to and from the control means. The communication means 8 includes a receiving element for receiving a wireless signal, an amplifier, a transmitting element for transmitting a wireless signal, and the like.
[0018]
Hereinafter, the operation of the present embodiment will be described. When the use switch of the traveling device (not shown) is operated to the use side, the control means 3 starts the operation and controls the traveling means 4 to determine the distance to the traveling surface or the level difference of the traveling surface by the traveling surface distance detecting means 1. The vehicle travels while rotating to a pre-stored azimuth while checking the tilt of the main body with the vertical tilt detection means 2 or checking the travel distance stored in advance.
[0019]
For example, if there is a small bump that can be climbed over, such as a sill or a carpet edge, the traveling distance detecting means 1 detects the size of the step, determines it with the control means 3, and checks the inclination of the main body with the vertical inclination detecting means 2. The traveling means 4 is controlled to get over the step. When it is determined that there is a wall or an obstacle and the vehicle cannot get over, the traveling means 4 is controlled to perform the avoidance traveling to avoid the step.
[0020]
Also, if there is a small concave step that can be lowered, such as the edge of a carpet, the size of the step is detected by the running surface distance detecting means, determined by the control means 3, and the inclination of the main body is confirmed by the vertical inclination detecting means 2. The traveling means 4 is controlled while moving down the step. If it is determined that there is a stair or an entrance or the like and it is impossible to descend, the traveling means 4 is controlled to perform avoidance traveling to avoid a step.
[0021]
Therefore, a traveling device capable of traveling while detecting the size of the step on the traveling surface and confirming whether or not the vehicle can pass therethrough, and detecting the inclination of the main body when riding or descending and preventing the main body from tipping over. It can be.
[0022]
In addition, since the apparatus has the altitude detecting means 5, the altitude is detected and compared with the altitude of each floor stored in advance to check on which floor of the building the apparatus is traveling. Therefore, it is possible to provide a traveling device that can travel while checking how many floors of the building are traveling.
[0023]
In addition, since the designated inclination input means 6 is provided, the fact that the user places the traveling device 10 on a horizontal traveling surface is input and used as a reference for inclination. Therefore, it is possible to provide a traveling apparatus that can travel while correcting the deviation from the inclination detected by the traveling apparatus 10 and detecting the accurate inclination.
[0024]
In addition, since the designated altitude input means 7 is provided, the fact that the user has placed the traveling device 10 on the traveling surface of the first floor is input and used as the altitude reference. Therefore, it is possible to provide a traveling apparatus that can travel while correcting the deviation of the altitude detected by the traveling apparatus 10 and detecting an accurate altitude.
[0025]
In addition, since it has communication means for communicating with an elevating device 9 for elevating and lowering a plurality of altitudes and connecting the traveling surfaces and mounting and elevating the traveling device 10, it communicates with the elevating device 9 via the communication means 8 and specifies in advance. The user travels on the designated floor with the elevator 9 stopped at the floor of the altitude specified in advance. Therefore, it is possible to provide a traveling device capable of traveling on traveling surfaces on a plurality of designated floors.
[0026]
FIG. 2 is a configuration diagram of the traveling device of the present invention. In FIG. 2, reference numeral 21 denotes a left drive motor for inputting the output of the control means 14 to rotate the left wheel 20 forward, reverse or stop. Reference numeral 23 denotes a right drive motor which inputs the output of the control means 14 to rotate the right wheel 22 forward, reverse or stop. Reference numeral 19 denotes auxiliary wheels which support the bottom surface of the main body at three points together with the left and right wheels 20, 22.
[0027]
When the right wheel 22 and the left wheel 20 rotate forward (the rotation direction is opposite), the vehicle advances, and when the right wheel 22 rotates forward and the left wheel 20 rotates backward (the rotation direction is the same), the wheel rotates clockwise on the spot. . Reference numerals 27a and 27b denote friction reducing means disposed at the front of the bottom surface of the main body. Numeral 11 denotes a vertical inclination detecting means which is arranged horizontally on the main body, detects the inclination of the main body with respect to the direction of gravity, and outputs an output to the control means. Numeral 26 denotes a running surface distance detecting means arranged at the front end of the main body, which detects a distance from the running surface 25 and outputs an output to the control means 14.
[0028]
FIGS. 3A and 3B are conceptual diagrams when the vehicle gets over a step. As shown in FIG. 3 (a), when there is a small convex step 30 in the traveling direction, the step 30 comes into contact with the friction reducing means 27 arranged at the front portion of the bottom surface of the main body 10, and rides on the step with small friction. As shown in FIG. 3B, even after riding, the convex surface of the step 30 and the friction reducing means 27 come into contact with each other and the vehicle travels with small friction.
[0029]
Therefore, it is possible to provide a traveling device capable of smoothly overcoming a step with a small impact. When the friction reducing means 27 is held rotatably, it becomes rolling friction and the friction is reduced. In addition, if it is made of a soft material, for example, an elastic material, the impact when it collides with the step can be reduced.
[0030]
FIGS. 4A, 4B, and 4C are conceptual diagrams of the operation of the vertical inclination detecting means 51 with respect to the inclination of the running surface. FIG. 4A shows a case where the traveling direction is an upward slope, and the horizontal direction of the main body (parallel to the running surface 55 if the distance between the running surface 55 and the main body is not a predetermined size and the main body is not inclined) is perpendicular to the vertical direction. The angle a ° to be formed becomes an obtuse angle and gravity acts in the direction opposite to the traveling direction, so that the driving torque of the wheels is increased. FIG. 4B shows a case where the running surface is horizontal, and the angle b ° between the horizontal direction and the vertical direction of the main body is a right angle, and the traveling direction is not affected by gravity. FIG. 4C shows a case where the traveling direction is a downward slope, and the angle c ° between the horizontal direction and the vertical direction of the main body becomes an acute angle, and gravity acts in the same direction as the traveling direction, so that the driving torque of the wheels is reduced.
[0031]
Therefore, a traveling device capable of traveling at an appropriate speed while detecting the inclination of the traveling surface and confirming the influence of gravity applied to the main body can be provided.
[0032]
FIG. 5 is an image diagram in which the traveling device 70 communicates with the elevating device 72 and moves to a plurality of traveling surfaces. In FIG. 5, the elevating device 72 connects the running surface 71a having the height Ld, the running surface 71b having the height Le, and the running surface 71c having the height Lf by moving up and down. The traveling device 70 communicates with the traveling device 72 to stop at the current floor, and rides on the elevating device 72 to communicate with the elevating device 72 to perform ascending operation. Next, the vehicle stands by while checking the altitude, and when the altitude reaches a predetermined altitude, for example, Le, stops the elevating device by communicating with the elevating device 72, and travels down the traveling surface 71b.
[0033]
Therefore, it is possible to provide a traveling device capable of traveling on a plurality of designated floors by using the lifting device.
[0034]
FIG. 6 is an image diagram in which a traveling surface 60a of a plurality of altitudes La, a traveling surface 61b of an altitude Lb, and a traveling surface 61c of an altitude Lc are connected by a slope 62a and a slope 62b, and the traveling device 60 moves. In FIG. 6, the traveling device 60 enters the slope 62a from the current traveling surface 61a to move to the traveling surface 61b at the designated altitude, for example, Lb, while checking the altitude, and then climbs the slope 62a when confirming the predetermined altitude Lb. And travels on the running surface 61b.
[0035]
Therefore, it is possible to provide a traveling device capable of traveling on a plurality of traveling surfaces having a designated height using the slope.
[0036]
【The invention's effect】
As described above, according to the inventions described in claims 1 to 8, while detecting the size of the step on the running surface and confirming whether the vehicle can pass, and detecting the inclination of the main body at the time of climbing or descending, etc. A traveling device capable of traveling while preventing the main body from tipping over can be realized.
[Brief description of the drawings]
FIG. 1 is a block diagram of a traveling device according to a first embodiment of the present invention. FIG. 2 is a configuration diagram of the traveling device. FIG. FIG. 4 (a) shows an image of an operation of a vertical inclination detecting means of the traveling device on a traveling surface having a predetermined inclination, and FIG. 4 (b) shows a vertical image of the traveling device. FIG. 5C is an image diagram of an operation of a detecting unit on a traveling surface having another inclination. FIG. 5C is an image diagram of an operation of a vertical inclination detecting unit of the traveling device on a traveling surface having another inclination. Image of moving to a plurality of running surfaces by communicating with an elevating device [FIG. 6] Image of moving the running device to a plurality of running surfaces by connecting running surfaces of a plurality of altitudes with slopes
DESCRIPTION OF SYMBOLS 1 Running surface distance detecting means 2 Vertical inclination detecting means 3 Control means 4 Running means

Claims (8)

本体前端部底面と走行面との距離を検出する走行面距離検出手段と、本体の重力方向に対する傾きを検出する鉛直傾き検出手段と、走行面距離検出手段と鉛直傾き検出手段との出力を入力し走行を制御する制御手段とを備える走行装置。The running surface distance detecting means for detecting the distance between the front end bottom surface of the main body and the running surface, the vertical inclination detecting means for detecting the inclination of the main body with respect to the direction of gravity, and the outputs of the running surface distance detecting means and the vertical inclination detecting means are input. And a control means for controlling running. 本体の高度を検出する高度検出手段を有する請求項1に記載の走行装置。The traveling device according to claim 1, further comprising altitude detection means for detecting the altitude of the main body. 本体の底面前部あるいは底面後部と、走行面あるいは走行面上の障害物との摩擦を軽減する摩擦軽減手段を有する請求項1または2に記載の走行装置。The traveling device according to claim 1 or 2, further comprising a friction reducing unit configured to reduce friction between a front portion or a rear portion of the bottom surface of the main body and a traveling surface or an obstacle on the traveling surface. 使用者が本体を、鉛直に対して所定の傾きをもって置いたことを入力する指定傾き入力手段を有する請求項1に記載の走行装置。The traveling device according to claim 1, further comprising designated inclination input means for inputting that the user has placed the main body with a predetermined inclination with respect to the vertical. 使用者が本体を指定の高度に置いたことを入力する指定高度入力手段を有する請求項2に記載の走行装置。The traveling apparatus according to claim 2, further comprising a designated altitude input means for inputting that the user has placed the main body at a designated altitude. 制御手段は、本体と走行面の距離および本体の傾きとから走行面の勾配を算出し、上り、水平あるいは下りの走行制御を補正する請求項1〜5のいずれか1項に記載の走行装置。The traveling device according to any one of claims 1 to 5, wherein the control means calculates a gradient of the traveling surface from a distance between the main body and the traveling surface and an inclination of the main body, and corrects upward, horizontal, or downward traveling control. . 複数の走行面を昇降して接続する昇降装置との通信手段を有し、制御手段は、本体を第1の所定の高度で昇降装置に乗降させる請求項2に記載の走行装置。The traveling device according to claim 2, further comprising a communication unit with a lifting device that connects the plurality of traveling surfaces by lifting and lowering, and wherein the control unit moves the main body on and off the lifting device at a first predetermined altitude. 複数の高度の走行面をスロープで接続し、制御手段は、本体を第2の所定の高度でスロープに入出させる請求項2に記載の走行装置。The traveling apparatus according to claim 2, wherein the running surfaces at a plurality of altitudes are connected by a slope, and the control means causes the main body to enter and exit the slope at a second predetermined altitude.
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US8600553B2 (en) 2005-12-02 2013-12-03 Irobot Corporation Coverage robot mobility
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US9811089B2 (en) 2013-12-19 2017-11-07 Aktiebolaget Electrolux Robotic cleaning device with perimeter recording function
US9939529B2 (en) 2012-08-27 2018-04-10 Aktiebolaget Electrolux Robot positioning system
US9946263B2 (en) 2013-12-19 2018-04-17 Aktiebolaget Electrolux Prioritizing cleaning areas
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US10534367B2 (en) 2014-12-16 2020-01-14 Aktiebolaget Electrolux Experience-based roadmap for a robotic cleaning device
US10617271B2 (en) 2013-12-19 2020-04-14 Aktiebolaget Electrolux Robotic cleaning device and method for landmark recognition
US10678251B2 (en) 2014-12-16 2020-06-09 Aktiebolaget Electrolux Cleaning method for a robotic cleaning device
US10729297B2 (en) 2014-09-08 2020-08-04 Aktiebolaget Electrolux Robotic vacuum cleaner
US10874271B2 (en) 2014-12-12 2020-12-29 Aktiebolaget Electrolux Side brush and robotic cleaner
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US11099554B2 (en) 2015-04-17 2021-08-24 Aktiebolaget Electrolux Robotic cleaning device and a method of controlling the robotic cleaning device
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US9939529B2 (en) 2012-08-27 2018-04-10 Aktiebolaget Electrolux Robot positioning system
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US10219665B2 (en) 2013-04-15 2019-03-05 Aktiebolaget Electrolux Robotic vacuum cleaner with protruding sidebrush
US10433697B2 (en) 2013-12-19 2019-10-08 Aktiebolaget Electrolux Adaptive speed control of rotating side brush
US9811089B2 (en) 2013-12-19 2017-11-07 Aktiebolaget Electrolux Robotic cleaning device with perimeter recording function
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US10518416B2 (en) 2014-07-10 2019-12-31 Aktiebolaget Electrolux Method for detecting a measurement error in a robotic cleaning device
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US10877484B2 (en) 2014-12-10 2020-12-29 Aktiebolaget Electrolux Using laser sensor for floor type detection
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