JP2004129675A - Motor-driven bed device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a motor-driven bed device in which a bed frame, floor board body, and the like, are made to be driven and operated by oral commands. <P>SOLUTION: This motor-driven bed device is provided with a voice converting section 37, a voice recognizing section 41, and a drive control section 47 which operate the mobile sections of the motor-driven bed device for prescribed periods of time based on the oral commands given from a user. <P>COPYRIGHT: (C)2004,JPO

Description

【００３５】
なお、音声認識部４１のワード認識部４４は、［表１］に示すように、マイクロフォン３７ａに入力される、類似する複数の音声指令を所定の単語として認識し、その単語に相当する所定の電気信号であるワード信号を比較判定部４５に出力することができるようになっている。
【００３６】
上記音声認識部４１は演算処理部４２を有する。この演算処理部４２は上記音声変換部３７からの音声信号を記憶するためのサンプルホールド部４３を有する。音声信号はサンプルホールド部４３を経てワード認識部４４に入力される。このワード認識部４４はサンプルホールド部４３からの音声信号を所定の単語として認識し、その単語に相当する所定の電気信号であるワード信号を比較判定部４５に出力する。
【００３７】
比較判定部４５では、ワード認識部４４からのワード信号と、キーワード記憶部４６からのキーワード信号とを比較し、ワード信号がキーワード信号に含まれている場合には、ワード信号に対応する操作命令信号を時間設定部４８及びオアゲート部４９を介して制御装置を構成する駆動制御部４７に所定時間出力するようになっている。
【００３８】
上記時間設定部４８は、操作命令信号が上記駆動制御部４７に出力される時間を設定することができるようになっており、その出力時間は２〜５秒、好ましくは３秒に設定される。この実施の形態では３秒間に設定されている。
【００３９】
操作命令信号を受けた駆動制御部４７は、その操作命令信号に応じて上記上下駆動源９、背上げ駆動源２６、脚上げ駆動源２７のいずれかを駆動する駆動信号を出力する。
【００４０】
上記比較判定部４５からの操作命令信号は音声合成部５１に出力され、この音声合成部５１で操作命令信号が音声信号としての上記［表１］に示す応答メッセージに変換される。この応答メッセージは増幅部５２で増幅されて出力部としてのスピーカ５３から音声として出力される。このスピーカ５３は図１に示すようにヘッドボード１２に設けられており、それによって利用者Ｕや介助者などが電動式ベッド装置の動作を音声で確認できるようになっている。
【００４１】
なお、上記比較判定部４５からの操作命令信号は、上記スピーカ５３よりも上記時間設定部４８に遅延して出力される。それによって、上記スピーカ５３によって応答メッセージが出力されてから、駆動制御部４７によって各可動部９，２６７，２７が駆動されるため、ベッド装置上の利用者Ｕはいずれかの可動部が駆動される前に、駆動される可動部に応じて体勢を整えることができるので、安全性が向上する。
【００４２】
上記リモートコントローラ３８からの操作命令信号は、上記オアゲート部４９から上記駆動制御部４７に入力される。つまり、上記上下駆動源９、背上げ駆動源２６及び脚上げ駆動源２７は、音声変換部３７からの音声信号と、リモートコントローラ３８からの操作命令信号のいずれによっても動作させることができるようになっている。
【００４３】
つぎに、上記構成の電動式ベッド装置を使用する場合について説明する。
【００４４】
マットレスＭ上に仰臥した利用者Ｕが上半身を起こしたい場合には、マイクロフォン３７ａに向かって「頭上げる」を発声する。マイクロフォン３７ａに入力された音声指令は、音声変換部３７でデジタルの電気信号である音声信号に変換され、音声認識部４１の演算処理部４２のサンプルホールド部４３に入力される。音声信号はサンプルホールド部４３で一時的に記憶され、ワード認識部４４で音声信号が所定の単語として認識される。
【００４５】
ワード認識部４４で単語として認識されたワード信号は比較判定部４５でキーワード記憶部４６からのキーワード信号と比較され、ワード信号がキーワード信号に含まれているか否かが判定される。
【００４６】
ワード信号がキーワード信号に含まれている場合には、ワード信号に対応する操作命令信号が時間設定部４８、オアゲート部４９を介して駆動制御部４７に出力される。そして、駆動制御部４７は、背上げ駆動源２６を３秒間作動させ、その間に背上げ床部１８が所定の角度上昇する。それと同時に、ヘッドボード１２に設けられたスピーカ５３からは、音声指令の「頭上げる」に対応した応答メッセージの「頭が上がります」が音声として出力されることになる。
【００４７】
背上げ床部１８を３秒間上昇させた結果、その上昇角度が十分でない場合には、利用者Ｕは再度、「頭上げる」の音声指令をマイクロフォン３７ａに向かって発声入力する。それによって、背上げ床部１７はさらに３秒間、上昇方向に駆動されることになる。
【００４８】
このように、利用者Ｕは、背上げ床部１８の上昇角度が望む角度に上昇するまでマイクロフォン３７ａへの音声指令の入力を繰り返すことで、上記背上げ床部１８を所望する状態に起上させることができる。
【００４９】
同様に、起上状態にある背上げ床部１８を倒伏させたり、第１、第２の脚上げ床部を起伏させたり、さらにはベッドフレーム３を上下動させる場合も、マイクロフォン３７ａに向かって所定の音声指令を発声入力することで、所望する動作を行わせることができる。
【００５０】
音声入力による動作は時間設定部４８によって３秒間に設定し、１回の動作が３秒間で停止するようにしている。つまり、比較判定部４５からの操作命令信号は、１回の音声入力によって３秒間だけ駆動制御部４７に入力される。
【００５１】
上記時間設定部４８がない場合、たとえば「頭上げる」の１回の音声指令によって倒伏した背上げ床部１８は、予め設定された所定の角度、たとえば水平に倒伏した状態から４５度以上の角度まで連続して起上することになる。
【００５２】
背上げ床部１８が起上する間に、緊急にその上昇を止めたい場合がある。その場合、利用者Ｕは「とまれ」の音声指令を発声入力しなければならない。しかしながら、緊急に「とまれ」の音声指令を発声入力しようとすると、利用者Ｕは慌てて音声指令を正確に発声できなかったり、間違った音声指令を発声入力してしまうことがあり、そのような場合には背上げ床部１８を緊急に停止させることができず、たとえば利用者Ｕが上半身を必要以上に起こし過ぎてしまうなどのことがある。
【００５３】
しかしながら、この発明では、１回の音声指令の発声入力による動作時間を３秒間とした。そのため、仮に「とまれ」の音声入力を正確に入力することができなかったとしても、背上げ床部１８の駆動は３秒間で停止するから、利用者が上半身を起こし過ぎるなどのことを防止することができる。
【００５４】
１回の音声指令の入力による動作時間は２〜５秒がよく、好ましくは３秒である。たとえば２秒にすると、１回の動作時間が短いため、音声指令の入力を頻繁に繰り返さなければならないという煩わしさがある。また、１回の動作時間が５秒であると、長過ぎて動作範囲が大きくなり、好ましくないことがある。以上のことから、１回の音声指令による動作時間は３秒が最適であるとの結論に達した。
【００５５】
上記ワード認識部４４は、マイクロフォン３７ａに入力される音声指令が［表１］に示すように複数の類似するものであっても、その音声信号を所定の単語として認識する。そのため、利用者Ｕが音声指令の発音や言い方を多少間違えても、所望する可動部を確実に動作させることができるから、音声指令の入力を、精神的或いは肉体的な苦痛を感じることなく行なえる。
【００５６】
この発明は上記一実施の形態に限定されず、たとえば電動式ベッド装置としては、床板体は起伏駆動されずにベッドフレームだけが上下駆動されるだけのものやベッドフレームは上下駆動されないが、床板体だけが起伏駆動されるものなどであっても、この発明を適用することができる。
【００５７】
図４はこの発明の第２の実施の形態を示す電気回路のブロック図である。この実施の形態では、音声認識部４１の時間設定部４８とオアゲート部４９との間に、上記時間設定部４８によって設定された時間に基いて出力される操作命令信号が入力される信号通過時間制限部６１が設けられている。この信号通過時間制限部６１は音声認識部４１から駆動制御部４７に出力される操作命令信号の所定時間この実施の形態では５秒以上継続して出力されるのを防止する。
【００５８】
すなわち、上記時間設定部４８からは、この時間設定部４８によって設定された３秒間だけ、上記駆動部４７に操作命令信号が出力される。しかしながら、時間設定部４８などを備えた音声認識部４１はＣＰＵを主体に構成されているため、ノイズなどの障害や故障などによって暴走状態になる虞がある。
【００５９】
その場合、各可動部９，２６，２７には、駆動制御部４７から上記時間設定部４８によって設定された３秒以上にわたって駆動信号が出力されたり、音声変換部３７から音声指令が入力されていないのに駆動信号が出力される虞がある。
【００６０】
そこで、時間設定部４８とオアゲート部４９との間に上記信号通過時間制限部６１を設け、駆動制御部４７に出力される操作命令信号を５秒間に制限することで、上記音声認識部４１がノイズなどの影響で暴走したとしても、駆動制御部４７からは駆動信号が５秒以上出力されるのを阻止することができるようにした。
【００６１】
したがって、音声認識部４１が仮に暴走するようなことがあっても、上下駆動源９、背上げ駆動源２６或いは脚上げ駆動源２７が５秒以上駆動されることがないから、安全性を向上させることができる。
【００６２】
一方、比較判定部４５からの操作命令信号を音声信号として出力するスピーカ５３と増幅部５２との間には切換え部６２が設けられている。この切換え部６２には、上記スピーカ５３と呼び出し手段６３とが並列に接続されている。
【００６３】
上記切変え部６２は、上記比較判定部４５がワード認識部４４からのワード信号と、キーワード記憶部４６からのキーワード信号とを比較し、ワード信号がキーワード信号に含まれているときには上記比較判定部４５からの操作命令信号を音声に変換して上記スピーカ５３から出力させる。
【００６４】
ワード認識部４４からのワード信号がキーワード信号に含まれていないときには、上記比較判定部４５は上記切換え部６２に切換え信号を出力する。それによって、上記比較判定部４５から上記呼び出し手段６３に呼び出し信号が出力される。
【００６５】
キーワード信号に含まれていないワード信号とは、上記［表１］、［表２］に示す各駆動部９，２６、２７を駆動するための音声指令以外の音声指令がマクロフォン３７ａに入力された場合で、たとえば患者が医師や介護者を呼んだ場合などである。
【００６６】
上記呼び出し手段６３は、たとえば医師や介護者の控え室６４に設けられたスピーカ６５と、上記控え室６４の近くなどの適所に設置された送信機６６とを有する。送信機６６は上記控え室６４などに設置された受信機６７に送信するようになっている。受信機６６は受信信号を上記スピーカ６５から出力する。
【００６７】
それによって、利用者Ｕが医師や介護者を呼ぶなど、駆動部９，２６，２７を駆動するための音声指令以外の音声指令をマイクロフォン３７ａに入力すれば、そのことをスピーカ６５によって控え室６４にいる、利用者Ｕ以外の人に伝えるこができる。つまり、利用者Ｕは、音声によって各可動部を作動させるだけでなく、医師や介護者に対して用件を確実に伝えることができる。
【００６８】
【発明の効果】
以上のようにこの発明は、利用者の音声指令によって可動部を所定時間駆動するようにした。
【００６９】
そのため、両手が不自由な利用者であっても、音声によって可動部を所望する状態に操作することが可能となるばかりか、１回の音声指令によって可動部は所定時間だけ駆動されるため、その駆動時間を適宜設定することで、安全性の向上を図ることができる。
【図面の簡単な説明】
【図１】この発明の第１の実施の形態に係る電動式ベッド装置の床板体が倒伏した状態の正面図。
【図２】電動式ベッド装置の床板体が起上した状態の正面図。
【図３】電動式ベッド装置を駆動する電気回路のブロック図。
【図４】この発明の第２の実施の形態を示す電動式ベッド装置を駆動する電気回路のブロック図。
【符号の説明】
３…ベッドフレーム
８…上下駆動機構
１５…床板体
２２…起伏駆動機構
３７…音声変換部
４１…音声認識部
４７…駆動制御部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electric bed device that can be used even by a handicapped user.
[0002]
[Prior art]
As a bed device for a disabled person such as the elderly or a sick person, the bed frame is driven up and down to adjust its height, and the floor plate provided on the bed frame is raised and lowered to drive the user. 2. Description of the Related Art There is known an electric bed apparatus having functions such as raising the upper body and raising legs.
[0003]
Operations such as the up-down driving of the bed frame and the up-down driving of the floor plate in the electric bed apparatus having the above configuration can be performed by a remote controller. As is well known, the remote controller has a plurality of operation buttons, and a user can operate a bed frame or a floor plate by pressing a button of a desired operation.
[0004]
[Problems to be solved by the invention]
By the way, if the user burns or cuts both hands or cannot move both hands, the remote controller cannot be operated. Therefore, in such a case, the user cannot take a desired posture by raising the upper body or the like, which may be very inconvenient.
[0005]
It is an object of the present invention to provide an electric bed apparatus that enables a user who has a disability with both hands to perform, for example, an operation of raising and lowering a floor plate by voice.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 is an electric bed device having a movable portion driven by a drive source,
An electric bed device comprising a control device for operating the movable portion for a predetermined time based on a voice command from a user.
[0007]
According to a second aspect of the present invention, in the electric bed apparatus having a movable portion driven by a drive source,
A voice recognition unit that recognizes a user's voice command and outputs a command signal corresponding to the voice command based on the recognition for a predetermined time;
A drive control unit that operates the movable unit for a predetermined time based on a command signal output from the voice recognition unit;
A motorized bed device comprising:
[0008]
The invention according to claim 3 is a bed frame,
A bed frame provided on the bed frame so that the bed frame can be vertically driven by a vertical drive mechanism;
A floor plate having a fixed floor portion provided on the bed frame and fixed to the bed frame, and a movable floor portion rotatably connected to the fixed floor portion;
An undulation drive mechanism for undulating the movable floor,
A voice conversion unit that converts a user's voice command into a voice signal of an electric signal;
A voice recognition unit that recognizes the voice signal from the voice conversion unit and outputs a command signal corresponding to the voice signal for a predetermined time based on the recognition;
A drive control unit that operates the vertical drive mechanism and the undulation drive mechanism for a predetermined time based on a command signal output from the voice recognition unit;
A motorized bed device comprising:
[0009]
The invention according to claim 4 is characterized in that the voice recognition unit is provided with a time setting unit that sets an output time of a command signal corresponding to the voice signal. In the electric bed device.
[0010]
The invention according to claim 5 is the electric bed device according to claim 2 or 3, wherein the command signal is output from the voice recognition unit for 2 to 5 seconds.
[0011]
The invention according to claim 6 is the electric bed apparatus according to claim 2 or 3, wherein the command signal is output from the voice recognition unit for about 3 seconds.
[0012]
According to a seventh aspect of the present invention, a signal transit time limiting unit is provided between the voice recognition unit and the drive unit to limit the command signal from being output from the voice recognition unit to the drive unit for a predetermined time or more. The electric bed apparatus according to claim 2 or 3, wherein:
[0013]
The electric bed apparatus according to claim 7, wherein the signal transit time limiting section limits the output of the command signal to the driving section for 5 seconds or more. It is in.
[0014]
According to a ninth aspect of the present invention, there is provided the electric bed apparatus according to the first or second aspect, wherein the movable portion can be driven by a command signal from the remote controller.
[0015]
According to a tenth aspect of the present invention, an output unit for outputting a response message based on a user's voice command is connected to the voice recognition unit, and the movable unit is moved after the response message is output from the output unit. The electric bed apparatus according to claim 2, wherein the section is driven by the drive control section.
[0016]
The invention according to claim 11 is characterized in that the voice recognition unit can output a command signal for driving the movable unit to the drive control unit in response to a plurality of similar voice commands. An electric bed apparatus according to claim 2 or claim 3.
[0017]
The invention according to claim 12, wherein when a voice signal other than a voice signal for driving the driving unit is input to the voice recognition unit, the calling unit can transmit the input to a person other than a user. The electric bed apparatus according to claim 2, further comprising:
[0018]
According to the present invention, the movable section is driven for a predetermined time by a user's voice command, so that the movable section can be operated to a desired state by voice without using a hand.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0020]
1 to 3 show a first embodiment of the present invention. The electric bed apparatus of the present invention shown in FIGS. 1 and 2 has a base frame 1. Casters 2 with stoppers are provided on the lower surfaces of the four corners of the base frame 1, and support the base frame 1 so that it can run.
[0021]
On the upper surface of the four corners of the base frame 1, columns 4 are erected. One end of an upper and lower drive link 5 (only two are shown) is pivotally attached to each support column 4, and the other end of each of the upper and lower drive links 5 is vertically provided on both sides in the width direction of both ends in the longitudinal direction of a bed frame 6 as a movable part. The connecting piece 7 is pivoted.
[0022]
The bed frame 6 is vertically driven by a vertical drive mechanism 8. The up-down drive mechanism 8 has an up-down drive source 9, and the link 5 is driven by the up-down drive source 9 via the interlocking rod 11 in the upright direction shown by the arrow from the folded state shown in FIG. ing. Thereby, the bed frame 6 is driven in the ascending direction.
[0023]
A head board 12 is provided at one longitudinal end of the bed frame 6, and a foot board 13 is provided at the other end. On the bed frame 6, a floor plate 15 as a movable portion is provided. The floor plate 15 is divided into a plurality of floors.
[0024]
That is, the floor plate 15 has a fixed floor portion 16 fixedly provided at an intermediate portion of the bed frame 6 in the longitudinal direction. A waist-raising floor 17 and a back-raising floor 18 are sequentially connected to one side of the fixed floor 16 so as to be rotatable. On the other side of the fixed floor section 16, a first leg-raising floor, a section 19, and a second leg-raising floor section 20 are sequentially rotatably connected. A mattress M is placed on the floor plate 15.
[0025]
The floor plate 15 is driven up and down by an up and down drive mechanism 22 provided on the lower surface side of the bed frame 3. The undulation drive mechanism 22 has an elongated box 23 containing a drive mechanism (not shown). At one end of the box 23, a first drive shaft 24 having an axis extending along the width direction of the bed frame 3 is provided, and at the other end, a second drive shaft 25 is connected to the first drive shaft 24 and the axis. They are provided in parallel.
[0026]
A back lifting drive source 26 for driving the first drive shaft 24 is provided on one side surface of the box 23, and a leg lifting drive source 27 for rotating the second drive shaft 25 is provided on the other side surface. ing.
[0027]
One end of a back raising arm 28 is fixed to the first drive shaft 24. A pair of rollers 29 are provided at the other end of the back raising arm 28 so as to be rotatable at predetermined intervals. These rollers 29 are rollably engaged with guide rails 31 having a U-shaped cross section provided on the lower surface of the back raising floor portion 17. Thus, when the back-raising arm 28 is driven in the rising direction, the back-raising floor portion 18 can be raised from the lying state shown in FIG. 1 to the state shown in FIG. At this time, the waist-raising floor 17 provided between the back-raising floor 18 and the fixed floor 16 also moves.
[0028]
A leg raising arm 32 is provided on the second drive shaft 25 with one end fixed thereto. A roller 33 is provided at the other end of the leg raising arm 32. This roller 33 is in contact with an inclined surface 34 formed on the lower surface of the first raised floor portion 19.
[0029]
Therefore, when the leg raising arm 32 is driven in the rising direction, the first leg raising floor portion 19 rises in the direction in which the other end rises with one end pivotally attached to the fixed floor portion 16 as a fulcrum. When the first leg-raising floor 19 rises, the second leg-raising floor 20 interlocks with this rise.
[0030]
An intermediate portion of a support member 35 having a wire bent in a U-shape and both ends pivotally connected to the bed frame 6 is rotatably connected to an end of the second leg raising floor 20. As a result, when the first leg-raising floor portion 19 rises, the second leg-raising floor portion 20 linked thereto can be held in a raised state as shown in FIG.
[0031]
The vertical drive source 9, the back-lift drive source 26, and the leg-lift drive source 27 are driven by a voice command from a voice converter 37 constituting a control device and a command signal from a remote controller 38 as shown in FIG. It has become.
[0032]
The voice converter 37 has a microphone 37a (shown in FIG. 1) to which a voice command is input. The microphone 37a is provided on one side of the back-raised floor 18 via a flexible tube 40 so as to be adjustable in position. ing. By deforming the flexible tube 40, the microphone 37a can be positioned at the mouth of the user U who lies on the mattress M.
[0033]
As shown in Table 1 below, for example, seven types of voice commands are input to the microphone 37a. The voice command input to the microphone 37a is converted into a voice signal of a digital electric signal and input to the voice recognition unit 41 constituting the control device.
[0034]
[Table 1]

[0035]
As shown in [Table 1], the word recognition unit 44 of the voice recognition unit 41 recognizes a plurality of similar voice commands input to the microphone 37a as a predetermined word, and determines a predetermined word corresponding to the word. A word signal, which is an electric signal, can be output to the comparison / determination unit 45.
[0036]
The voice recognition unit 41 has an arithmetic processing unit 42. The arithmetic processing unit 42 has a sample hold unit 43 for storing the audio signal from the audio conversion unit 37. The audio signal is input to the word recognition unit 44 via the sample and hold unit 43. The word recognition unit 44 recognizes the voice signal from the sample hold unit 43 as a predetermined word, and outputs a word signal that is a predetermined electric signal corresponding to the word to the comparison determination unit 45.
[0037]
The comparison / determination unit 45 compares the word signal from the word recognition unit 44 with the keyword signal from the keyword storage unit 46. If the word signal is included in the keyword signal, an operation instruction corresponding to the word signal is issued. A signal is output to a drive control unit 47 constituting a control device for a predetermined time via a time setting unit 48 and an OR gate unit 49.
[0038]
The time setting section 48 can set the time during which the operation command signal is output to the drive control section 47, and the output time is set to 2 to 5 seconds, preferably 3 seconds. . In this embodiment, it is set to three seconds.
[0039]
Upon receiving the operation command signal, the drive control unit 47 outputs a drive signal for driving any of the vertical drive source 9, the back-lift drive source 26, and the leg-lift drive source 27 in accordance with the operation command signal.
[0040]
The operation command signal from the comparison / determination unit 45 is output to the voice synthesis unit 51, and the voice synthesis unit 51 converts the operation command signal into a response message shown in [Table 1] as a voice signal. This response message is amplified by the amplifying unit 52 and output as a sound from the speaker 53 as an output unit. The speaker 53 is provided on the headboard 12 as shown in FIG. 1, so that the user U, a caregiver, and the like can check the operation of the electric bed apparatus by voice.
[0041]
The operation command signal from the comparison / determination unit 45 is output to the time setting unit 48 with a delay from the speaker 53. As a result, after the response message is output from the speaker 53, each of the movable units 9, 267, and 27 is driven by the drive control unit 47. Therefore, the user U on the bed apparatus drives one of the movable units. Before starting, the posture can be adjusted in accordance with the movable part to be driven, so that safety is improved.
[0042]
An operation command signal from the remote controller 38 is input from the OR gate unit 49 to the drive control unit 47. That is, the vertical drive source 9, the back-lift drive source 26, and the leg-lift drive source 27 can be operated by any of a voice signal from the voice converter 37 and an operation command signal from the remote controller 38. Has become.
[0043]
Next, a case where the electric bed device having the above configuration is used will be described.
[0044]
When the user U who is lying on the mattress M wants to raise his / her upper body, he speaks “head-up” toward the microphone 37a. The voice command input to the microphone 37 a is converted into a voice signal which is a digital electric signal by the voice conversion unit 37, and is input to the sample hold unit 43 of the arithmetic processing unit 42 of the voice recognition unit 41. The voice signal is temporarily stored in the sample and hold unit 43, and the voice signal is recognized as a predetermined word in the word recognition unit 44.
[0045]
The word signal recognized as a word by the word recognition unit 44 is compared with the keyword signal from the keyword storage unit 46 by the comparison determination unit 45, and it is determined whether the word signal is included in the keyword signal.
[0046]
When the word signal is included in the keyword signal, an operation command signal corresponding to the word signal is output to the drive control unit 47 via the time setting unit 48 and the OR gate unit 49. Then, the drive control unit 47 activates the back-raising drive source 26 for 3 seconds, during which the back-raising floor 18 rises by a predetermined angle. At the same time, from the speaker 53 provided on the headboard 12, a response message "head up" corresponding to the voice command "head up" is output as sound.
[0047]
If the raised angle is not sufficient as a result of raising the back-raising floor 18 for three seconds, the user U again inputs a voice command of “raising” to the microphone 37a. As a result, the back raising floor 17 is driven in the ascending direction for another 3 seconds.
[0048]
As described above, the user U repeats the input of the voice command to the microphone 37a until the rising angle of the back-raised floor 18 rises to a desired angle, thereby raising the back-raised floor 18 to a desired state. Can be done.
[0049]
Similarly, when the back-raised floor 18 in the upright state is laid down, the first and second leg-raised floors are raised and lowered, and the bed frame 3 is moved up and down, the microphone 37a is moved toward the microphone 37a. A desired operation can be performed by uttering and inputting a predetermined voice command.
[0050]
The operation by voice input is set to 3 seconds by the time setting unit 48, and one operation is stopped in 3 seconds. That is, the operation command signal from the comparison determination unit 45 is input to the drive control unit 47 for three seconds by one voice input.
[0051]
When the time setting unit 48 is not provided, for example, the back-raised floor unit 18 that has fallen down by one voice command of “head-up” is at a predetermined angle set in advance, for example, an angle of 45 degrees or more from a state in which it is horizontally lying down. It will rise continuously.
[0052]
There is a case where it is urgently necessary to stop the raising while the back-raising floor 18 is rising. In this case, the user U has to utter and input a voice command of “stop”. However, when urgently trying to utter a voice command of "stop", the user U may panic and cannot utter a voice command correctly, or may utter a wrong voice command. In this case, the back-raising floor portion 18 cannot be stopped urgently, and for example, the user U may raise the upper body more than necessary.
[0053]
However, in the present invention, the operation time by one voice command utterance input is set to 3 seconds. For this reason, even if the voice input of “tore” cannot be accurately input, the driving of the raised floor portion 18 is stopped in three seconds, thereby preventing the user from raising the upper body too much. be able to.
[0054]
The operation time for one voice command input is preferably 2 to 5 seconds, and more preferably 3 seconds. For example, when the time is set to 2 seconds, since one operation time is short, there is an annoyance that the input of the voice command must be frequently repeated. Further, if the operation time for one operation is 5 seconds, the operation range becomes too long, which is not preferable. From the above, it has been concluded that the optimal operation time by one voice command is 3 seconds.
[0055]
The word recognizing unit 44 recognizes the voice signal as a predetermined word even if the voice command input to the microphone 37a is a plurality of similar ones as shown in [Table 1]. For this reason, even if the user U makes a mistake in pronunciation or expression of the voice command, the desired movable portion can be reliably operated, so that the voice command can be input without feeling mental or physical pain. You.
[0056]
The present invention is not limited to the above-described embodiment. For example, as an electric bed device, a floor plate body is not driven up and down and only a bed frame is driven up and down, and a bed frame is not driven up and down. The present invention can be applied to a case where only the body is driven up and down.
[0057]
FIG. 4 is a block diagram of an electric circuit showing a second embodiment of the present invention. In this embodiment, a signal transit time in which an operation command signal output based on the time set by the time setting unit 48 is input between the time setting unit 48 and the OR gate unit 49 of the voice recognition unit 41. A restriction section 61 is provided. The signal transit time limiting unit 61 prevents the operation command signal output from the voice recognition unit 41 to the drive control unit 47 for a predetermined time in this embodiment from being continuously output for 5 seconds or more.
[0058]
That is, the operation setting signal is output from the time setting unit 48 to the driving unit 47 for 3 seconds set by the time setting unit 48. However, since the voice recognition unit 41 including the time setting unit 48 and the like is mainly configured by the CPU, there is a possibility that a runaway state may occur due to a failure such as noise or a failure.
[0059]
In this case, a drive signal is output from the drive control unit 47 to the movable units 9, 26, and 27 for three seconds or more set by the time setting unit 48, and a voice command is input from the voice conversion unit 37. There is a possibility that a drive signal is output when there is no drive signal.
[0060]
Therefore, the signal transit time limiting unit 61 is provided between the time setting unit 48 and the OR gate unit 49, and the operation command signal output to the drive control unit 47 is limited to 5 seconds. Even if a runaway occurs due to the influence of noise or the like, the drive signal can be prevented from being output from the drive control unit 47 for 5 seconds or more.
[0061]
Therefore, even if the voice recognition unit 41 runs out of control, the vertical drive source 9, the back-up drive source 26, or the leg-up drive source 27 is not driven for more than 5 seconds, thereby improving safety. Can be done.
[0062]
On the other hand, a switching unit 62 is provided between the speaker 53 that outputs the operation command signal from the comparison determination unit 45 as an audio signal and the amplification unit 52. The switch 53 is connected to the speaker 53 and the calling means 63 in parallel.
[0063]
The switching unit 62 compares the word signal from the word recognition unit 44 with the keyword signal from the keyword storage unit 46. When the word signal is included in the keyword signal, the comparison and determination unit 45 The operation command signal from the unit 45 is converted into a voice and output from the speaker 53.
[0064]
When the word signal from the word recognition unit 44 is not included in the keyword signal, the comparison determination unit 45 outputs a switching signal to the switching unit 62. As a result, a call signal is output from the comparison / determination section 45 to the call means 63.
[0065]
The word signal not included in the keyword signal means that a voice command other than the voice command for driving each of the driving units 9, 26, and 27 shown in [Table 1] and [Table 2] is input to the microphone 37a. For example, when the patient calls a doctor or caregiver.
[0066]
The calling means 63 has, for example, a speaker 65 provided in a waiting room 64 of a doctor or a caregiver, and a transmitter 66 installed in an appropriate place such as near the waiting room 64. The transmitter 66 transmits to a receiver 67 installed in the waiting room 64 or the like. The receiver 66 outputs a reception signal from the speaker 65.
[0067]
Thereby, when the user U inputs a voice command other than the voice command for driving the driving units 9, 26, 27 into the microphone 37a, such as calling a doctor or a caregiver, the voice command is transmitted to the waiting room 64 by the speaker 65. Can be transmitted to a person other than the user U. That is, the user U can not only actuate each movable unit by voice but also surely inform the doctor or caregiver of his / her requirements.
[0068]
【The invention's effect】
As described above, according to the present invention, the movable section is driven for a predetermined time by the voice command of the user.
[0069]
Therefore, even if the user has both hands with disabilities, not only can the movable part be operated to a desired state by voice, but also the movable part is driven for a predetermined time by one voice command, By appropriately setting the drive time, safety can be improved.
[Brief description of the drawings]
FIG. 1 is a front view of an electric bed apparatus according to a first embodiment of the present invention in a state where a floor plate body is lying down.
FIG. 2 is a front view of the electric bed device in a state in which a floor plate is raised.
FIG. 3 is a block diagram of an electric circuit for driving the electric bed apparatus.
FIG. 4 is a block diagram of an electric circuit for driving an electric bed apparatus according to a second embodiment of the present invention.
[Explanation of symbols]
3 Bed frame 8 Vertical drive mechanism 15 Floor plate 22 Undulation drive mechanism 37 Voice conversion unit 41 Voice recognition unit 47 Drive control unit

Claims (12)

In an electric bed apparatus having a movable portion driven by a drive source,
An electric bed device comprising a control device for operating the movable portion for a predetermined time based on a voice command from a user. In an electric bed apparatus having a movable portion driven by a drive source,
A voice recognition unit that recognizes a user's voice command and outputs a command signal corresponding to the voice command based on the recognition for a predetermined time;
A drive control unit that operates the movable unit for a predetermined time based on a command signal output from the voice recognition unit;
An electric bed apparatus comprising: A bed frame,
A bed frame provided on the bed frame so that the bed frame can be vertically driven by a vertical drive mechanism;
A floor plate having a fixed floor portion provided on the bed frame and fixed to the bed frame, and a movable floor portion rotatably connected to the fixed floor portion;
An undulation drive mechanism for undulating the movable floor,
A voice conversion unit that converts a user's voice command into a voice signal of an electric signal;
A voice recognition unit that recognizes the voice signal from the voice conversion unit and outputs a command signal corresponding to the voice signal for a predetermined time based on the recognition;
A drive control unit that operates the vertical drive mechanism and the undulation drive mechanism for a predetermined time based on a command signal output from the voice recognition unit;
An electric bed apparatus comprising: The electric bed device according to claim 2 or 3, wherein the voice recognition unit is provided with a time setting unit that sets an output time of a command signal corresponding to the voice signal. The electric bed apparatus according to claim 2 or 3, wherein the command signal is output from the voice recognition unit for 2 to 5 seconds. The electric bed apparatus according to claim 2 or 3, wherein the command signal is output from the voice recognition unit for about 3 seconds. A signal transit time limiting unit for limiting output of the command signal from the voice recognizing unit to the driving unit for a predetermined time or more is provided between the voice recognizing unit and the driving unit. The electric bed apparatus according to claim 2 or 3. 8. The electric bed apparatus according to claim 7, wherein the signal transit time limiting unit limits the command signal from being continuously output to the driving unit for 5 seconds or more. 3. The electric bed apparatus according to claim 1, wherein the movable section can be driven by a command signal from the remote controller. An output unit that outputs a response message based on a user's voice command is connected to the voice recognition unit. After the response message is output from the output unit, the movable unit is moved by the drive control unit. The electric bed apparatus according to claim 2, wherein the bed apparatus is driven. The said voice recognition part can output the command signal which drives the said movable part to the said drive control part with respect to several similar voice commands, The Claim 2 or Claim 3 characterized by the above-mentioned. Electric bed device. When a voice signal other than a voice signal for driving the driving unit is input to the voice recognition unit, the voice recognition unit is provided with a calling unit capable of transmitting the input to a person other than a user. The electric bed apparatus according to claim 2, wherein

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