JP2010166341A - Optical axis adjustment unit with built-in bidirectional radio communication module - Google Patents
Optical axis adjustment unit with built-in bidirectional radio communication module Download PDFInfo
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本発明は、赤外線変調光を発する投光器と、この赤外線変調光を受ける受光器とで構成される光線式検知装置に使用する双方向無線通信モジュール内蔵光軸調整ユニットに関するものである。 The present invention relates to an optical axis adjustment unit with a built-in bidirectional wireless communication module used in a light beam type detection device including a projector that emits infrared modulated light and a light receiver that receives the infrared modulated light.
光線式検知装置は、投光器と受光器を所定の距離だけ離して設置するものである。投光器から受光器に達する赤外線変調光の強さは、雨や霧等の気象条件や、装置のカバーや窓部の汚れによる減衰を考慮し、余裕を持った値としてある。例えば１００ｍの距離を警戒する装置の場合、受光器側の受光信号レベルが最大時の１／１００まで減衰しても検知信号を発しない程度にするのが一般的である。この性能を発揮させるために、照準装置と方向可変機能を備えた投光ユニットと受光ユニットを、それぞけ対応するユニットに向けて正確にセットする必要がある。受光器側では、赤外線変調光を受光し、その受光レベルを出力する受光量出力部を設け、その出力値を確認しながら受光ユニットの方向を調整している。投光器側では、照準装置を用いた調整のみをおこなっている。投光器側での、調整を考慮して、受光レベルを送信する専用の装置を、受光器と投光器に個別に接続する方法も考えられていた。それは、受光器側から投光器側に受光量出力部の受光レベルを送信し、受光量出力部の出力値を確認しながら、投光器側の投光ユニットの方向調整をおこなうというものである（例えば特許文献１参照）。
従来の、光線式検知装置の受光レベルを送信する専用の装置は、投光器用と、受光器用の２種類の装置が必要となる。このため、二人で光軸調整をおこなう場合、投光器担当、受光器担当と作業分担が決定されてしまい、複数の光線式検知装置を設置した場所で、移動しながら順に処理する上で効率が悪かった。効率を上げようとすると、投光器用と、受光器用の２種類の装置の両方を各担当者が持っていく必要性が生じ、使い勝手が悪かった。 The conventional dedicated device for transmitting the light receiving level of the light beam detecting device requires two types of devices for the projector and the light receiver. For this reason, when the optical axis adjustment is performed by two people, the task assignment with the projector and the receiver is determined, and it is efficient to process in order while moving at the place where a plurality of light detection devices are installed. It was bad. In order to increase the efficiency, it became necessary for each person in charge to take both types of devices for the projector and for the light receiver, which was not easy to use.
また、受光レベルを、受光器から投光器に一方的に送信するだけであり、投光器側から装置の作動状況をコントロールすることはできなかった。また、記憶手段を備えていなかったため、受光レベルは、別途記録しない限り、その後におこなう定期的な調整作業には反映されることはなかった。光軸調整と動作確認の作業は、別の作業として個別におこなわれており、作業の効率化は配慮されていなかった。 Further, the light reception level is only transmitted unilaterally from the light receiver to the projector, and the operation status of the apparatus cannot be controlled from the projector side. Further, since the storage means was not provided, the light reception level was not reflected in the periodic adjustment work performed thereafter unless it was recorded separately. The work of adjusting the optical axis and checking the operation is performed separately as separate work, and the efficiency of the work has not been considered.
本発明では、取り付けられた機器が、投光器であるのか受光器であるのかを判別する機器判別手段を備え、機器判別手段が、受光器であるとの判定をおこなうと、受光量出力部の出力値を表示し、その出力値を電波信号として発信し、機器判別手段が、投光器であるとの判定をおこなうと、受信中の電波信号を検波し、信号出力値を表示するようにした。双方向無線通信モジュールを内蔵し、投光器、受光器のどちらからでも、光軸調整ユニットの作動状態をコントロールできるようにした。各投光ユニット、受光ユニットそれぞれの作動状態を変え、それぞれの作動状態における出力値を記憶する自動チェックモードを備えた。 In the present invention, there is provided a device discriminating unit that discriminates whether the attached device is a projector or a light receiver, and when the device discriminating unit determines that it is a light receiver, the output of the received light amount output unit The value is displayed, the output value is transmitted as a radio wave signal, and when the device discriminating means determines that it is a projector, the radio wave signal being received is detected and the signal output value is displayed. A two-way wireless communication module is built in, so that the operating state of the optical axis adjustment unit can be controlled from either the projector or the receiver. An automatic check mode is provided in which the operating state of each light projecting unit and light receiving unit is changed and the output value in each operating state is stored.
本発明の双方向無線通信モジュール内蔵光軸調整ユニットは、投光器、受光器どちらに取り付けても、内蔵した機器判別手段が、自動的に投光器であるのか受光器であるのかを判別し動作するので、１種類のユニットを準備するだけでよくなり、投光器担当、受光器担当と作業分担が決定されることなく、光軸調整作業の合理化が図れる。双方向無線通信モジュールを内蔵し、投光器、受光器どちらからでも、光軸調整ユニットの作動状態をコントロールできるようになる。
また、自動チェックモードを備えたので、各投光ユニット、受光ユニットそれぞれの作動状態を変え、それぞれの作動状態における出力値を記憶することができ、定期的におこなう光軸調整作業のデータ管理の効率化も図ることができる。
The bi-directional wireless communication module built-in optical axis adjustment unit of the present invention operates by automatically determining whether the built-in device discriminating device is a light projector or a light receiver, regardless of whether it is attached to the light projector or the light receiver. It is only necessary to prepare one type of unit, and it is possible to rationalize the optical axis adjustment work without determining the work assignment between the projector and the receiver. A bi-directional wireless communication module is built in, and the operating state of the optical axis adjustment unit can be controlled from either the projector or the light receiver.
In addition, since it has an automatic check mode, it is possible to change the operating state of each light projecting unit and light receiving unit and store the output value in each operating state, and to manage the data of periodic optical axis adjustment work Efficiency can also be improved.
図１は、本発明の双方向無線通信モジュール内蔵光軸調整ユニットの外観を示した図である。（ａ）は、光軸調整作業をおこなうためにカバー（図示省略）を取り外した光線式検知装置の受光器２０に、双方向無線通信モジュール内蔵光軸調整ユニット３０が取り付けられた状態を示しており、（ｂ）は、光線式検知装置３０が、投光器１０に取り付けられる過程を示している。２１は、上段の受光ユニット、２２は、下段の受光ユニットである。1１は、上段の投光ユニット、１２は、下段の投光ユニットである。１３は、双方向無線通信モジュール内蔵光軸調整ユニット３０と接続するためのコネクタである。３１は、受光量出力部の出力値を表示する表示部であり、３２は、電波信号を送受信するアンテナである。
上段の投光ユニット１１と下段の投光ユニット１２とを備えた投光器１０から受光器に向けて投光された赤外線変調光は、受光器２０の上段の受光ユニット２１と下段の受光ユニット２２とで受光される。投光器１０の２つの投光ユニット、受光器２０の２つの受光ユニットは、ともに上下方向に並べられている。
FIG. 1 is an external view of an optical axis adjustment unit with a built-in bidirectional wireless communication module according to the present invention. (A) shows a state in which the optical axis adjustment unit 30 with built-in bidirectional wireless communication module is attached to the light receiver 20 of the light beam type detection device from which the cover (not shown) is removed in order to perform the optical axis adjustment work. (B) shows a process in which the light beam detection device 30 is attached to the projector 10. Reference numeral 21 denotes an upper light receiving unit, and 22 denotes a lower light receiving unit. Reference numeral 11 denotes an upper light projecting unit, and reference numeral 12 denotes a lower light projecting unit. Reference numeral 13 denotes a connector for connecting to the optical axis adjustment unit 30 with a built-in bidirectional wireless communication module. 31 is a display unit that displays the output value of the received light amount output unit, and 32 is an antenna that transmits and receives radio signals.
Infrared modulated light projected toward the light receiver from the light projector 10 including the upper light projecting unit 11 and the lower light projecting unit 12 is transmitted to the upper light receiving unit 21 and the lower light receiving unit 22. Is received. The two light projecting units of the light projector 10 and the two light receiving units of the light receiver 20 are both arranged in the vertical direction.
受光器２０の上段の受光ユニット２１と下段の受光ユニット２２は、放物面反射鏡等の光学系とその焦点に置かれたフォトダイオードとで構成されており、ここで電気信号に変換され、信号処理部に送られる。投光器１０の上段の投光ユニット１１と下段の投光ユニット１２から投光される赤外線変調光は、同期がとられており、２つの受光ユニットから出力される電気信号は、加算されてひとつの信号処理部で処理される。信号処理部で処理された信号は、判定部へ送られ、基準値と比較して、信号が基準値を下まわったときに出力部を作動させ、出力信号として外部へ送り出す。受光器には、上段の受光ユニット２１の出力信号を受け、その信号の大きさに応じた直流信号に変換する上段の受光量出力部と、下段の受光ユニット２２の出力信号を受け、その信号の大きさに応じた直流信号に変換する下段の受光量出力部とを備えている。 The upper light receiving unit 21 and the lower light receiving unit 22 of the light receiver 20 are composed of an optical system such as a parabolic reflector and a photodiode placed at the focal point thereof, where they are converted into electric signals, It is sent to the signal processor. The infrared modulated light projected from the upper light projecting unit 11 and the lower light projecting unit 12 is synchronized, and the electrical signals output from the two light receiving units are added to form one signal. Processed by the signal processor. The signal processed by the signal processing unit is sent to the determination unit, and compared with the reference value, the output unit is activated when the signal falls below the reference value, and is sent out as an output signal. The light receiver receives an output signal from the upper light receiving unit 21 and receives an output signal from the upper light receiving amount output unit for converting the output signal into a direct current signal corresponding to the magnitude of the signal, and an output signal from the lower light receiving unit 22. And a lower received light amount output unit for converting into a direct current signal corresponding to the magnitude of.
双方向無線通信モジュール内蔵光軸調整ユニット３０は、投光器１０、受光器２０の光軸調整に支障をきたさない位置に固定される。このとき、投光器１０あるいは受光器２０と、双方向無線通信モジュール内蔵光軸調整ユニット３０間で、電気的結合が完了する。双方向無線通信モジュール内蔵光軸調整ユニット３０は、投光器あるいは受光器から電源供給を受けて作動する。双方向無線通信モジュール内蔵光軸調整ユニット３０は、電池がを内蔵可能であり、投光器から取り外しても、受光器の状態を観測できるようにしてある。双方向無線通信モジュール内蔵光軸調整ユニット３０は、取り付けられた機器が、投光器であるのか受光器であるのかを、双方向無線通信モジュール内蔵光軸調整ユニット３０に設けたコネクタ（図示省略）と、投光器に設けた双方向無線通信モジュール内蔵光軸調整ユニット３０と接続するためのコネクタ１３、あるいは受光器に設けた光軸調ユニットと接続するためのコネクタ（図示省略）とが接続された時に、自動的に判別する。この判別は、投光器あるいは受光器との信号の授受によりおこなうが、投光器あるいは受光器との結合時に、別々の設定スイッチが作動するようにし、作動したスイッチの状態に基づき判別させてもよい。 The bidirectional wireless communication module built-in optical axis adjustment unit 30 is fixed at a position that does not hinder the optical axis adjustment of the projector 10 and the light receiver 20. At this time, electrical coupling is completed between the light projector 10 or the light receiver 20 and the optical axis adjustment unit 30 with the built-in bidirectional wireless communication module. The bi-directional wireless communication module built-in optical axis adjustment unit 30 operates by receiving power supply from a projector or a light receiver. The bi-directional wireless communication module built-in optical axis adjustment unit 30 has a built-in battery, so that the state of the light receiver can be observed even if it is detached from the projector. The optical axis adjustment unit 30 with built-in bidirectional wireless communication module includes a connector (not shown) provided on the optical axis adjustment unit 30 with built-in bidirectional wireless communication module to determine whether the attached device is a projector or a light receiver. When the connector 13 for connecting to the optical axis adjusting unit 30 with built-in bidirectional wireless communication module provided in the projector or the connector (not shown) for connecting to the optical axis adjusting unit provided in the light receiver is connected. , Automatically determine. This determination is performed by exchanging a signal with the projector or the light receiver. However, a separate setting switch may be operated at the time of coupling with the projector or the light receiver, and the determination may be made based on the state of the operated switch.
２つの投光ユニットとそれらに対応する２つの受光ユニットとが正対するように光軸調整を行い、双方向無線通信モジュール内蔵光軸調整ユニット３０を受光器２０に固定した後の双方向無線通信モジュール内蔵光軸調整ユニット３０の動きを説明する。内蔵した機器判別手段からの受光器であるとの判定結果を受けて、受光量出力部の出力値を、表示部３１に表示する。双方向無線通信モジュール内蔵光軸調整ユニット３０に設けた操作スイッチ（図示省略）の切り替えにより、上段の受光量出力部の値、下段の受光量出力部の値、２個の投光ユニットの動作をオフした状態での受光ユニットの受光量出力部の出力値の総和、２個の投光ユニットの動作をオンした状態での２個の受光ユニットの受光量出力部の出力値の総和、を表示する。表示部３１の表示内容は、同時に、電波信号としてアンテナ３２から送信する。操作スイッチを切り替え、上段の受光量出力部の値を表示するようにすると、双方向無線通信モジュール内蔵光軸調整ユニット３０の信号制御部は、上段の受光ユニット２１の受光動作をオン、下段の受光ユニット２２の受光動作を停止し、下段の投光ユニット１２からの赤外線変調光の送出を停止することを求める信号を、電波信号として送信する。操作スイッチを切り替え、下段の受光量出力部の値を表示するようにすると、双方向無線通信モジュール内蔵光軸調整ユニット３０の信号制御部は、上段の受光ユニット２１の受光動作を停止、下段の受光ユニット２２の受光動作をオンし、上段の投光ユニット１１からの赤外線変調光の送出を停止することを求める信号を、電波信号として送信する。操作スイッチを切り替え、警報チェックモードにすると、上段の受光ユニット２１の受光動作をオン、下段の受光ユニット２２の受光動作をオンし、上段の投光ユニット１１と下段の投光ユニット１２からの赤外線変調光の送出を停止することを求める信号を、電波信号として送信する。操作スイッチを切り替え、受光ユニットの受光量出力部の出力値の総和を表示するようにすると、双方向無線通信モジュール内蔵光軸調整ユニット３０の信号制御部は、上段の受光ユニット２１の受光動作をオン、下段の受光ユニット２２の受光動作をオンし、上段の投光ユニット１１と、下段の投光ユニット１２からの赤外線変調光の送出を継続することを求める信号を、電波信号として送信する。 Bidirectional wireless communication after adjusting the optical axis so that the two light projecting units and the two corresponding light receiving units face each other and fixing the optical axis adjusting unit 30 with the built-in bidirectional wireless communication module to the light receiver 20 The movement of the module built-in optical axis adjustment unit 30 will be described. In response to the determination result that the light receiver is received from the built-in device determination means, the output value of the received light amount output unit is displayed on the display unit 31. By switching the operation switch (not shown) provided in the optical axis adjustment unit 30 with built-in bidirectional wireless communication module, the value of the upper received light amount output unit, the value of the lower received light amount output unit, and the operation of the two light projecting units The sum of the output values of the received light amount output section of the light receiving unit when the light is turned off, and the sum of the output values of the received light amount output sections of the two light receiving units when the operation of the two light emitting units is turned on, indicate. The display content of the display unit 31 is simultaneously transmitted from the antenna 32 as a radio wave signal. When the operation switch is switched to display the value of the upper light reception amount output unit, the signal control unit of the optical axis adjustment unit 30 with built-in bidirectional wireless communication module turns on the light reception operation of the upper light reception unit 21 and lower A signal for requesting to stop the light receiving operation of the light receiving unit 22 and stop the transmission of the infrared modulated light from the lower light projecting unit 12 is transmitted as a radio wave signal. When the operation switch is switched to display the value of the lower received light amount output unit, the signal control unit of the optical axis adjustment unit 30 with built-in bidirectional wireless communication module stops the light receiving operation of the upper light receiving unit 21 and lower The light receiving operation of the light receiving unit 22 is turned on, and a signal for requesting to stop sending the infrared modulated light from the upper light projecting unit 11 is transmitted as a radio wave signal. When the operation switch is switched to the alarm check mode, the light receiving operation of the upper light receiving unit 21 is turned on, the light receiving operation of the lower light receiving unit 22 is turned on, and infrared rays from the upper light projecting unit 11 and the lower light projecting unit 12 are turned on. A signal for requesting to stop the transmission of the modulated light is transmitted as a radio signal. When the operation switch is switched to display the total output value of the received light amount output section of the light receiving unit, the signal control section of the optical axis adjusting unit 30 with built-in bidirectional wireless communication module performs the light receiving operation of the upper light receiving unit 21. On, the light receiving operation of the lower light receiving unit 22 is turned on, and a signal for requesting to continue sending out the infrared modulated light from the upper light projecting unit 11 and the lower light projecting unit 12 is transmitted as a radio wave signal.
双方向無線通信モジュール内蔵光軸調整ユニット３０を投光器１０に固定した後の双方向無線通信モジュール内蔵光軸調整ユニット３０の動きを説明する。内蔵した機器判別手段からの投光器であるとの判定結果を受けて、受信中の電波信号を検波し、信号出力値を表示部３１に表示する。双方向無線通信モジュール内蔵光軸調整ユニット３０に設けた操作スイッチ（図示省略）の切り替えにより、上段の受光量出力部の値、下段の受光量出力部の値、２個の投光ユニットの動作をオフした状態での受光ユニットの受光量出力部の出力値の総和、２個の投光ユニットの動作をオンした状態での２個の受光ユニットの受光量出力部の出力値の総和、を表示する。操作スイッチを切り替え、上段の受光量出力部の値を表示するようにすると、双方向無線通信モジュール内蔵光軸調整ユニット３０の信号制御部は、下段の投光ユニット１２からの赤外線変調光の送出を停止し、上段の受光量出力部の表示を求める信号を、電波信号として送信する。操作スイッチを切り替え、下段の受光量出力部の値を表示するようにすると、双方向無線通信モジュール内蔵光軸調整ユニット３０の信号制御部は、上段の投光ユニット１１からの赤外線変調光の送出を停止し、下段の受光量出力部の表示を求める信号を、電波信号として送信する。操作スイッチを切り替え、警報チェックモードにすると、上段の投光ユニット１１と、下段の投光ユニット１２からの赤外線変調光の送出を停止し、受光ユニットの受光量出力部の出力値の総和を表示するよう求める信号を、電波信号として送信する。操作スイッチを切り替え、受光ユニットの受光量出力部の出力値の総和を表示するようにすると、双方向無線通信モジュール内蔵光軸調整ユニット３０の信号制御部は、上段の投光ユニット１１と、下段の投光ユニット１２からの赤外線変調光の送出を継続し、受光ユニットの受光量出力部の出力値の総和を表示するよう求める信号を、電波信号として送信する。 The movement of the optical axis adjustment unit 30 with a built-in bidirectional wireless communication module after the optical axis adjustment unit 30 with a built-in bidirectional wireless communication module is fixed to the projector 10 will be described. In response to the determination result that the projector is a projector from the built-in device determination means, the radio wave signal being received is detected, and the signal output value is displayed on the display unit 31. By switching the operation switch (not shown) provided in the optical axis adjustment unit 30 with built-in bidirectional wireless communication module, the value of the upper received light amount output unit, the value of the lower received light amount output unit, and the operation of the two light projecting units The sum of the output values of the received light amount output section of the light receiving unit when the light is turned off, and the sum of the output values of the received light amount output sections of the two light receiving units when the operation of the two light emitting units is turned on, indicate. When the operation switch is switched to display the value of the upper light reception amount output unit, the signal control unit of the optical axis adjustment unit 30 with built-in bidirectional wireless communication module sends out infrared modulated light from the lower light projecting unit 12. Is stopped, and a signal for requesting display of the upper received light amount output unit is transmitted as a radio wave signal. When the operation switch is switched to display the value of the lower received light amount output unit, the signal control unit of the optical axis adjustment unit 30 with built-in bidirectional wireless communication module sends out infrared modulated light from the upper projection unit 11. Is stopped, and a signal for requesting display of the lower received light amount output unit is transmitted as a radio wave signal. When the operation switch is switched to the alarm check mode, the sending of infrared modulated light from the upper light projecting unit 11 and the lower light projecting unit 12 is stopped, and the sum of the output values of the received light amount output section of the light receiving unit is displayed. A signal to be requested is transmitted as a radio signal. When the operation switch is switched to display the total output value of the received light amount output unit of the light receiving unit, the signal control unit of the optical axis adjustment unit 30 with built-in bidirectional wireless communication module includes the upper light projecting unit 11 and the lower light unit. The transmission of the infrared modulated light from the light projecting unit 12 is continued, and a signal for displaying the sum of the output values of the received light amount output section of the light receiving unit is transmitted as a radio wave signal.
次に、双方向無線通信モジュール内蔵光軸調整ユニット３０の自動チェックモードの動きを説明する。操作スイッチ（図示省略）を操作（長押し）すると、投光器、受光器の上段のユニット間の赤外線変調光の信号送受状態を確認し、上段の受光量出力部の値を記憶する。続いて、投光器、受光器の下段のユニット間の赤外線変調光の信号送受状態を確認し、下段の受光量出力部の値を記憶する。次に、投光器の上段の投光ユニット１１と、下段の投光ユニット１２からの赤外線変調光の送出を停止し、受光器の出力部が作動し、出力信号が外部へ送り出されることを確認する。最後に、受光器の２個の受光ユニットの受光量出力部の出力値の総和を記憶し、総合判定を下す。この判定は、上段の受光量出力部の値、下段の受光量出力部の値、受光器の２個の受光ユニットの受光量出力部の出力値の総和の値が、予め設定した値を満足し、且つ、出力部の作動状況が、所定の動きを示していることが確認されることをもって完了する。結果は、表示灯でおこなってもよいし、液晶表示素子等におこなってもよい。また、ブザー音等の音の表示をあわせておこなってもよい。 Next, the operation of the automatic check mode of the optical axis adjustment unit 30 with a built-in bidirectional wireless communication module will be described. When an operation switch (not shown) is operated (long press), the signal transmission / reception state of the infrared modulated light between the upper unit of the projector and the light receiver is confirmed, and the value of the upper received light amount output unit is stored. Subsequently, the signal transmission / reception state of the infrared modulated light between the lower unit of the projector and the light receiver is confirmed, and the value of the lower received light amount output unit is stored. Next, the transmission of the infrared modulated light from the upper light projecting unit 11 and the lower light projecting unit 12 is stopped, the output unit of the light receiver is activated, and it is confirmed that the output signal is sent to the outside. . Finally, the sum of the output values of the received light amount output sections of the two light receiving units of the light receiver is stored, and a comprehensive judgment is made. In this determination, the value of the upper light receiving amount output unit, the value of the lower light receiving amount output unit, and the sum of the output values of the light receiving amount output units of the two light receiving units of the light receiver satisfy a preset value. And it is completed when it is confirmed that the operating state of the output unit shows a predetermined movement. The result may be performed with an indicator lamp or a liquid crystal display element. Further, a sound such as a buzzer sound may be displayed together.
以上の説明のとおり、本発明の双方向無線通信モジュール内蔵光軸調整ユニット３０を１対（２台）使用すれば、複数の光線式検知装置を設置した場所で、何台でも光軸調整作業をおこなうことができる。自動チェックモードを備えているので、確認作業をもれなく実施することができる。双方向無線通信モジュール内蔵光軸調整ユニット３０は、電池での駆動も可能としているので、いったん固定した投光器から取り外し、投光器から離れた位置で、双方向無線通信モジュール内蔵光軸調整ユニット３０の表示を確認しながら、光線式検知装置の動作確認をおこなうことができる。つまり、一人で、光線式検知装置の警戒区間内の任意の位置で、受光器の動作状況の確認しながら、動作テストを完了させることが可能となる。
光線式検知装置には、双方向無線通信モジュール内蔵光軸調整ユニット３０に対応したコネクタを装備するだけで済み、光線式検知装置の回路規模は従来のものと同等でよい。光軸調整および点検の作業が終了した後には、双方向無線通信モジュール内蔵光軸調整ユニット３０は、投光器１０、受光器２０から取り外される。双方向無線通信モジュール内蔵光軸調整ユニット３０内には、上段の受光量出力部の値、下段の受光量出力部の値、２個の投光ユニットの動作をオフした状態での受光ユニットの受光量出力部の出力値の総和、２個の投光ユニットの動作をオンした状態での受光器の２個の受光ユニットの受光量出力部の出力値の総和の値が記憶されるので、それらの値を再確認することができ、点検記録の保存が確実におこなわれる。上段の受光量出力部の値、下段の受光量出力部の値、２個の投光ユニットの動作をオフした状態での受光ユニットの受光量出力部の出力値の総和、２個の投光ユニットの動作をオンした状態での２個の受光ユニットの受光量出力部の出力値の総和の表示は、表示部３１にデジタル表示し、音表示（レベルに応じた音程表示）をあわせておこなったが、アナログメーター表示や、ＬＥＤ等を用いた表示をおこなってもよい。２つの投光ユニットを備えた投光器と、それらに対応する２つの受光ユニットを備えた受光器に取り付ける双方向無線通信モジュール内蔵光軸調整ユニットについて説明したが、３つ以上の投光ユニットを備えた投光器と、それらに対応する３つ以上の受光ユニットを備えた受光器についても、同様の双方向無線通信モジュール内蔵光軸調整ユニットは、実現可能である。
As described above, if one pair (two units) of the optical axis adjustment units 30 with built-in bidirectional wireless communication module according to the present invention is used, the optical axis adjustment work can be performed at any number of places where a plurality of light beam detection devices are installed. Can be done. Since the automatic check mode is provided, it is possible to carry out the confirmation work without fail. Since the optical axis adjustment unit 30 with a built-in bidirectional wireless communication module can be driven by a battery, the display of the optical axis adjustment unit 30 with a built-in bidirectional wireless communication module is removed at a position away from the projector once fixed. It is possible to confirm the operation of the light beam detection device while confirming the above. That is, it is possible for one person to complete the operation test while confirming the operation status of the light receiver at an arbitrary position in the warning section of the light beam detection device.
The light beam detecting device only needs to be equipped with a connector corresponding to the optical axis adjusting unit 30 with built-in bidirectional wireless communication module, and the circuit size of the light beam detecting device may be the same as that of the conventional one. After completion of the optical axis adjustment and inspection work, the two-way wireless communication module built-in optical axis adjustment unit 30 is removed from the projector 10 and the light receiver 20. In the optical axis adjustment unit 30 with the built-in bidirectional wireless communication module, the value of the upper light receiving amount output unit, the value of the lower light receiving amount output unit, and the light receiving unit in the state where the operations of the two light projecting units are turned off. Since the sum of the output values of the received light amount output section is stored, the sum of the output values of the received light amount output sections of the two light receiving units of the light receiver when the operations of the two light projecting units are turned on is stored. These values can be reconfirmed, and inspection records are securely stored. The value of the upper received light amount output unit, the lower received light amount output unit, the sum of the output values of the received light amount output unit of the light receiving unit in the state where the operation of the two light emitting units is turned off, and two light projections The sum of the output values of the received light amount output sections of the two light receiving units when the unit is turned on is digitally displayed on the display section 31 and sound display (pitch display according to the level) is also performed. However, an analog meter display or display using an LED or the like may be performed. Although the projector with two light projecting units and the optical axis adjusting unit with built-in bidirectional wireless communication module attached to the light receiver with two light receiving units corresponding to them have been described, it has three or more light projecting units. The same optical axis adjustment unit with a built-in bidirectional wireless communication module can also be realized for the light projectors and the light receivers including three or more light receiving units corresponding thereto.
１０・・・投光器
１１・・・上段の投光ユニット
１２・・・下段の投光ユニット
１３・・・双方向無線通信モジュール内蔵光軸調整ユニットと接続するためのコネクタ
２０・・・受光器
２１・・・上段の受光ユニット
２２・・・下段の受光ユニット
３０・・・双方向無線通信モジュール内蔵光軸調整ユニット
３１・・・表示部
３２・・・アンテナ
DESCRIPTION OF SYMBOLS 10 ... Light projector 11 ... Upper light projection unit 12 ... Lower light projection unit 13 ... Connector 20 for connecting with optical axis adjustment unit with built-in bidirectional wireless communication module ... Light receiver 21 ... Upper light receiving unit 22 ... Lower light receiving unit 30 ... Optical axis adjustment unit 31 with built-in bidirectional wireless communication module ... Display 32 ... Antenna
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| KR20130051905A (en) * | 2011-11-10 | 2013-05-21 | 오프텍스 가부시키가이샤 | Automatic angle adjustment unit for use in object detection device |
| JP2015207846A (en) * | 2014-04-18 | 2015-11-19 | 竹中エンジニアリング株式会社 | Optical axis adjustment function of beam type sensor |
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| JP2002296361A (en) * | 2001-03-30 | 2002-10-09 | Omron Corp | Apparatus for setting of multiple optical-axis photoelectric sensor |
| JP2007104119A (en) * | 2005-09-30 | 2007-04-19 | Sunx Ltd | Multiple-optical-axis photoelectric sensor, beam lighting device, and light receiving unit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130051905A (en) * | 2011-11-10 | 2013-05-21 | 오프텍스 가부시키가이샤 | Automatic angle adjustment unit for use in object detection device |
| KR101947185B1 (en) | 2011-11-10 | 2019-02-12 | 오프텍스 가부시키가이샤 | Automatic angle adjustment unit for use in object detection device |
| JP2015207846A (en) * | 2014-04-18 | 2015-11-19 | 竹中エンジニアリング株式会社 | Optical axis adjustment function of beam type sensor |
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