公开(公告)号：US5675317A

公开(公告)日：1997-10-07

申请号：US591444

申请日：1996-01-29

申请人： Masato Ichikawa ,  Koichi Futsuhara ,  Masayoshi Sakai

发明人： Masato Ichikawa ,  Koichi Futsuhara ,  Masayoshi Sakai

IPC分类号： G01L9/00 ,  G01L19/12 ,  G08B29/00

CPC分类号： G01L19/12 ,  G01L9/0032

摘要： A residual pressure sensor for verifying that a residual pressure is zero, and to a monitoring apparatus for monitoring for faults in the residual pressure sensor. In order to detect that a residual pressure has completely gone, the residual pressure sensor detects change conditions in the output therefrom, and an output for no residual pressure is not generated while there are changes. Moreover, an electrical power supply condition to a drive solenoid (21) of a solenoid valve for opening/closing a pressure supply line, is monitored using a fail-safe current sensor (21) which outputs a logic value "0" when the presence of a current is detected, and which outputs a logic value "1" when the presence of a current is not detected. Fault monitoring of the residual pressure sensor is then carried out based on the monitoring output conditions of the current sensor and the output conditions of the residual pressure sensor.

摘要翻译： PCT No.PCT / JP94 / 00858 Sec。 371日期1996年1月29日 102（e）日期1996年1月29日PCT 1994年5月30日PCT PCT。 出版物WO95 / 33190 日期1995年12月7日用于验证残留压力为零的残余压力传感器以及用于监测残余压力传感器中的故障的监视装置。 为了检测残留压力已经完全消失，残留压力传感器检测其输出中的变化条件，并且在存在变化的情况下不产生无残留压力的输出。 此外，使用故障安全电流传感器（21）来监控向用于打开/关闭压力供应线路的电磁阀的驱动电磁阀（21）的电力供应状态，当故障安全电流传感器（21）出现逻辑值“0”时， 检测到电流，并且当没有检测到电流的存在时，其输出逻辑值“1”。 然后根据电流传感器的监测输出条件和剩余压力传感器的输出条件进行残压压力传感器的故障监测。

公开(公告)号：US06434025B1

公开(公告)日：2002-08-13

申请号：US09414836

申请日：1999-10-08

申请人： Toshihito Shirai ,  Masayoshi Sakai ,  Koichi Futsuhara ,  Takayuki Yuasa

发明人： Toshihito Shirai ,  Masayoshi Sakai ,  Koichi Futsuhara ,  Takayuki Yuasa

IPC分类号： H02M3335

摘要： The invention relates to a power supply unit which can fail-safely monitor not only for an excessive power supply output but also for an abnormal drop in output level. At the time of start-up, with the start signal from a start circuit, an AC signal is supplied to a primary side of a transformer and based on an AC output from a secondary side of the transformer, an output for supplying to an external load is generated and this output is monitored with a monitoring circuit. If the output level is within a set upper and lower limit threshold value range the output is judged to be normal and a high level normal verification signal is generated from the monitoring circuit, and with the high level normal verification signal, an AC signal is supplied to the primary side of the transformer, and the output supply to the external load is continued.

公开(公告)号：US06148055A

公开(公告)日：2000-11-14

申请号：US860197

申请日：1997-06-19

申请人： Masayoshi Sakai ,  Koichi Futsuhara

发明人： Masayoshi Sakai ,  Koichi Futsuhara

IPC分类号： G01D3/08 ,  G01D5/244 ,  G01P3/489 ,  G01P13/00 ,  G01P21/00 ,  G01P21/02 ,  G01R31/3185 ,  G06M3/00

CPC分类号： G01D5/24461 ,  G01D3/08 ,  G01D5/24457 ,  G01P13/00 ,  G01P21/00 ,  G01P21/02 ,  G01P3/489 ,  G01R31/318527

摘要： A counting apparatus having excellent fail-safe characteristics can be used in a rotation-stopped detection apparatus. As a first feature, timing of a high-frequency signal P.sub.2 is carried out by a counter 1 after completion of a counting of pulse signals P.sub.1. When the frequency of the timing output for the high-frequency signal is a predetermined value, a judgment signal, indicating that the counting is normal, is generated by a frequency discriminating circuit 30. As a second feature, a counter 100 is preset using a preset signal. Then, after verifying by an output from a self hold circuit 102 that the counter 100 has been reset, a counting output is generated from a self hold circuit 104. As a third feature, the counting apparatus is used as timer circuits 203, 300, 400, and the generation frequency of a rotation detection pulse signal I.sub.P based on a sensor signal, is obtained to thereby detect a rotation-stopped condition of a rotating body.

摘要翻译： PCT No.PCT / JP96 / 02229 Sec。 371日期：1997年6月19日 102（e）日期1996年6月19日PCT PCT 1996年8月7日PCT公布。 公开号WO97 / 14044 日期：1997年04月17日具有优异的故障保护特性的计数装置可以用于旋转停止检测装置。 作为第一特征，在完成脉冲信号P1的计数之后，由计数器1执行高频信号P2的定时。 当高频信号的定时输出的频率为预定值时，通过频率鉴别电路30产生表示计数正常的判断信号。作为第二特征，使用 预置信号。 然后，在通过自保持电路102的输出验证计数器100已被复位之后，从自保持电路104产生计数输出。作为第三特征，计数装置用作定时器电路203,300， 400，并且获得基于传感器信号的旋转检测脉冲信号IP的产生频率，从而检测旋转体的旋转停止状态。

公开(公告)号：US5666081A

公开(公告)日：1997-09-09

申请号：US343500

申请日：1994-11-23

申请人： Masayoshi Sakai ,  Koichi Futsuhara

发明人： Masayoshi Sakai ,  Koichi Futsuhara

IPC分类号： H03K5/13 ,  H03K17/292

CPC分类号： H03K5/13

摘要： The present invention relates to a fail-safe on-delay circuit which uses an an electronic circuit. An input signal higher than a power source potential is input to a PUT oscillating circuit and a pulse signal generated with a predetermined time constant, is once changed in a level conversion circuit to a level within a range of the power source potential, and then is phase inverted and a rising differential signal of the phase inverted signal is formed. The input signal to the PUT oscillation circuit is applied to one input terminal of a fail-safe two input window comparator, and the differential signal is input to the other input terminal, and self held. After a predetermined delay time an output of logic value 1 is generated from the window comparator. As a result a fail-safe on-delay circuit can be made wherein, in the event of a fault in the elements of the circuit the delay time is not shortened.

摘要翻译： PCT No.PCT / JP93 / 00410 Sec。 371日期1994年11月23日 102（e）1994年11月23日日期PCT 1993年3月31日PCT公布。 第WO94 / 23496号公报 日期：1994年10月13日本发明涉及使用电子电路的故障保护导通延迟电路。 将高于电源电位的输入信号输入到PUT振荡电路，并且以预定时间常数产生的脉冲信号在电平转换电路中被一次改变到电源电位范围内的电平，然后是 形成相位反相信号和相位反转信号的上升差分信号。 到PUT振荡电路的输入信号被施加到故障保护双输入窗口比较器的一个输入端子，并且差分信号被输入到另一个输入端子并且自保持。 在预定的延迟时间之后，从窗口比较器产生逻辑值1的输出。 因此，可以进行故障安全导通延迟电路，其中在电路元件发生故障的情况下，延迟时间不会缩短。

公开(公告)号：US5568059A

公开(公告)日：1996-10-22

申请号：US343608

申请日：1994-11-30

申请人： Koichi Futsuhara ,  Masayoshi Sakai

发明人： Koichi Futsuhara ,  Masayoshi Sakai

IPC分类号： G01P13/00 ,  G01R19/00 ,  G01R31/34

CPC分类号： G01P13/00 ,  G01R19/0092

摘要： The present invention relates to a current sensor for detecting current flowing in a current line, and a motor rotation sensor which utilizes this current sensor. A first transformer is inserted in a current line which is connected in parallel with a motor, so that a high frequency signal generated by a signal generator is transmitted to the current line by means of the first transformer. This high frequency signal is extracted by a second transformer inserted into another current line, and is transmitted to a receiver. When the motor rotates due to switching on a switch, or rotates under inertia immediately after switching off the switch, the transformer which is provided with a saturable magnetic body core (one or both of the transformers) becomes saturated due to the current supply to the motor, or the current generated by the motor, so that the level of the high frequency signal transmitted to the receiver drops considerably, causing the output of the receiver to become a logic value of 0 (indicating rotation of the motor). Moreover, when the motor is stopped, since the transformer is no longer saturated the level of the high frequency signal transmitted to the receiver becomes a high level. An output of logic value 1 (indicating that the motor has stopped) is thus produced from the receiver. When a fault such as a disconnection fault occurs in the motor power line, the output of the receiver becomes an output of logic value 0, the same as for motor rotation (indicating danger), thus giving a fail safe construction.

摘要翻译： PCT No.PCT / JP93 / 00419 Sec。 371日期1994年11月30日 102（e）日期1994年11月30日PCT 1993年4月1日PCT公布。 第WO94 / 23307号公报 日期：1994年10月13日本发明涉及一种用于检测电流线路中流动的电流传感器和利用该电流传感器的电机旋转传感器。 第一变压器插入与电动机并联连接的电流线，使得由信号发生器产生的高频信号通过第一变压器传输到电流线。 该高频信号由插入到另一个当前行中的第二变压器提取，并被发送到接收器。 当电动机由于接通开关而转动时，或者在关闭开关后立即转动惯性，设置有可饱和磁体铁芯（一个或两个变压器）的变压器由于向 电动机或电动机产生的电流，使得发送到接收器的高频信号的电平显着下降，导致接收机的输出变为逻辑值0（指示电动机的旋转）。 此外，当电动机停止时，由于变压器不再饱和，所以发送到接收器的高频信号的电平变为高电平。 因此，从接收器产生逻辑值1的输出（指示电动机停止）。 当电机电源线发生断线故障时，接收机的输出变为逻辑值0的输出，与电机转动相同（表示危险），从而造成故障安全。

公开(公告)号：US06334077B1

公开(公告)日：2001-12-25

申请号：US09156688

申请日：1998-09-18

申请人： Koichi Futsuhara ,  Masayoshi Sakai ,  Iwashige Takahashi ,  Yukio Hata

发明人： Koichi Futsuhara ,  Masayoshi Sakai ,  Iwashige Takahashi ,  Yukio Hata

IPC分类号： G06F1900

CPC分类号： B30B15/285 ,  B30B15/281

摘要： The present invention provides an operation apparatus for a press, of simple structure with lower cost. The operation apparatus for a press according to the present invention comprises a controlling system 1 for generating a slide actuation command signal K1 by an ON operation of an operation button or an entrance/escape detection output of a human body by a light-beam type safety apparatus and controlling slide actuation, based on a crank angle signal from an encoder 4; a monitoring system 2 for monitoring controlling operation of the controlling system 1, including slide overrun monitoring function and the like, utilizing operation button ON signal T, operation button-OFF signal /T or the detection output from the light-beam type safety apparatus, position signals Pa and Pb indicative of slide elevating process and slide lowering process, respectively, position signal Ph from a light-beam type safety apparatus, and slide actuation command OFF signal /K1; and an AND gate 3 for generating a slide actuation signal S based on the slide actuation command signal K1 from the controlling system 1, only when the normality judgment signals K2, K3 are being generated from the monitoring system 2.

摘要翻译： 本发明提供一种压机的操作装置，结构简单，成本较低。 根据本发明的按压操作装置包括控制系统1，用于通过操作按钮的ON操作或人体的入射/逃逸检测输出通过光束型安全来产生滑动致动指令信号K1 基于来自编码器4的曲柄角信号的装置和控制滑动致动; 利用操作按钮ON信号T，操作按钮OFF信号/ T或来自光束型安全装置的检测输出来监视控制系统1的控制操作的监视系统2，包括滑盖超限监视功能等， 位置信号Pa和Pb分别指示滑梯升降过程和滑落降低过程，来自光束型安全装置的位置信号Ph和滑动致动指令OFF信号/ K1; 以及仅在从监视系统2生成正常判定信号K2，K3时，根据来自控制系统1的滑动致动指令信号K1，生成滑动致动信号S的与门3。

公开(公告)号：US5668706A

公开(公告)日：1997-09-16

申请号：US630995

申请日：1996-04-12

申请人： Masayoshi Sakai ,  Koichi Futsuhara

发明人： Masayoshi Sakai ,  Koichi Futsuhara

IPC分类号： H01F7/18 ,  H01H47/32 ,  H02M3/335 ,  G05F1/56

CPC分类号： H01H47/325 ,  H01F7/1805 ,  H01F7/1844 ,  H01F2007/1861

摘要： This invention relates to a load driving circuit having a fail-safe breaking mechanism for breaking a primary power source when a failure occurs. This invention also relates to a load driving circuit capable of saving electricity in driving an inductive load and reducing a delay in stopping the load. The breaking mechanism for braking the primary power source has no contact. The load driving circuit includes a power supply circuit involving a semiconductor switching element that turns ON and OFF the supply of power to the load. There is arranged a detector for detecting a failure in the semiconductor switching element. When detecting a failure, the detector provides an output signal to activate the breaking mechanism. To drive the inductive load, the power supply circuit may have two power supply sources. In response to a load driving instruction signal, the two power supply sources together apply a high voltage to the load. After a predetermined period, one of the power supply sources is stopped, and during a steady-state operation of the load, the remaining power source applies a low voltage to the load. The load driving instruction signal may be used to provide a pulse width modulated output, which is used to supply power to the load through a transformer. During a steady-state operation of the load, this arrangement supplies a voltage lower than an operation start voltage to the load, to thereby reduce power consumption and a delay in stopping the load.

摘要翻译： 本发明涉及一种负载驱动电路，该负载驱动电路具有在故障发生时断开主电源的故障安全断路装置。 本发明还涉及能够节省用于驱动感性负载的电力并减少停止负载的延迟的负载驱动电路。 用于制动主电源的断开机构没有接触。 负载驱动电路包括电源电路，其包括使负载接通和断开电力的半导体开关元件。 布置有用于检测半导体开关元件中的故障的检测器。 当检测到故障时，检测器提供输出信号以激活断路机构。 为了驱动感性负载，电源电路可以具有两个电源。 响应于负载驱动指令信号，两个电源一起对负载施加高电压。 在预定时间段之后，电源中的一个停止，并且在负载的稳态操作期间，剩余电源向负载施加低电压。 负载驱动指令信号可以用于提供脉宽调制输出，用于通过变压器向负载供电。 在负载的稳态运行中，该装置向负载​​提供低于运行开始电压的电压，从而降低功耗并延迟停止负载。

公开(公告)号：US5578987A

公开(公告)日：1996-11-26

申请号：US569161

申请日：1995-12-21

申请人： Zhou XuYang ,  Koichi Futsuhara ,  Masayoshi Sakai

发明人： Zhou XuYang ,  Koichi Futsuhara ,  Masayoshi Sakai

IPC分类号： G08B29/10 ,  H04R27/00 ,  H04R29/00 ,  G08B29/00

CPC分类号： G08B29/10 ,  H04R27/00

摘要： A monitoring apparatus for an alarm device for situations wherein the alarm device is provided at a location remote from the alarm device drive side, which can verify from the alarm device drive side if an audible alarm has sounded. The drive of the alarm device (1) is stopped by switching off a drive switch (12) on the alarm device drive side (A). After stopping the drive of the alarm device (1) an audible alarm generation sensed signal from the response device (2) on the alarm device side (B)is received at the alarm device drive side (A) though the feeder (a). Then, after the audible alarm generation sensed signal has stopped, and on receipt of a verification signal verifying that the alarm device drive side (B) has returned to the original condition, a verification output (F3) for the audible alarm generation is generated at the alarm device drive side (A).

摘要翻译： PCT No.PCT / JP94 / 01055 Sec。 371 1995年12月21日第 102（e）日期1995年12月21日PCT提交1994年6月29日PCT公布。 公开号WO96 / 00955 日期1996年1月11日一种用于报警装置的监视装置，其中报警装置设置在远离报警装置驱动侧的位置，如果发出声音报警，则可以从报警装置驱动侧进行验证。 通过关闭报警装置驱动侧（A）上的驱动开关（12）来停止报警装置（1）的驱动。 在停止报警装置（1）的驱动之后，通过馈送器（a）在报警装置驱动侧（A）处接收来自报警装置侧（B）上的响应装置（2）的声音报警产生感测信号。 然后，在声音报警产生检测信号停止之后，在接收到验证报警装置驱动侧（B）返回原来状态的验证信号时，产生用于产生声音报警的验证输出（F3） 报警器驱动侧（A）。

公开(公告)号：US5568131A

公开(公告)日：1996-10-22

申请号：US338522

申请日：1994-11-29

申请人： Masayoshi Sakai ,  Koichi Futsuhara

发明人： Masayoshi Sakai ,  Koichi Futsuhara

IPC分类号： G01P13/00 ,  H02P5/00 ,  G08B21/00

CPC分类号： G01P13/00

摘要： The present invention relates to a judgement circuit for determining rotation or non-rotation of a motor, and to a motor stopped verification apparatus using such judgement circuit. A signal from a rotation sensor which detects rotation of the motor is input to the judgement circuit and a threshold value judgement made using a fail-safe two input window comparator. That is, respective predetermined threshold value ranges (windows) are set for each terminal of the window comparator, so that when the motor is stopped and the judgement circuit and the sensor are normal, the level of the signal input to each terminal comes within the range of the window, and an output of logic value 1 is generated from the window comparator. When the sensor or the judgement circuit is faulty then the signal level of one of the input terminals becomes outside the window range, while when the motor is rotating, the signal level of the other input terminal becomes outside the window range so that in either case an output of logic value 0 is generated. The stopped condition of the motor can thus be distinguished from rotation under inertia, thus enabling reliable detection.

摘要翻译： PCT No.PCT / JP93 / 00411 Sec。 371日期：1994年11月29日 102（e）日期1994年11月29日PCT 1993年3月31日PCT公布。 公开号WO94 / 23303 日期：1994年10月13日本发明涉及一种用于确定电动机的旋转或不旋转的判断电路以及使用该判断电路的电动机停止验证装置。 来自检测旋转电动机的旋转传感器的信号被输入到判断电路，并使用故障保护双输入窗口比较器进行阈值判定。 也就是说，为窗口比较器的每个端子设置相应的预定阈值范围（窗口），使得当电动机停止并且判断电路和传感器正常时，输入到每个终端的信号的电平在 窗口的范围，并且从窗口比较器产生逻辑值1的输出。 当传感器或判断电路故障时，其中一个输入端子的信号电平超出了窗口范围，而当电机旋转时，另一个输入端子的信号电平变为窗口范围之外，因此在任一情况下 产生逻辑值0的输出。 因此，马达的停止状态可以与惯性旋转区分开，从而能够进行可靠的检测。

公开(公告)号：US5508697A

公开(公告)日：1996-04-16

申请号：US150086

申请日：1993-11-19

申请人： Masakazu Kato ,  Masayoshi Sakai ,  Koichi Futsuhara ,  Kiyoaki Inaba

发明人： Masakazu Kato ,  Masayoshi Sakai ,  Koichi Futsuhara ,  Kiyoaki Inaba

IPC分类号： B23Q35/128 ,  B26D5/32 ,  D04C5/26 ,  D06H7/16 ,  D06H7/22 ,  G01S13/00 ,  G01S13/04 ,  G01V3/12 ,  G08G1/01

CPC分类号： B26D5/32 ,  D04C5/26 ,  D06H7/16 ,  D06H7/22 ,  G01S13/04 ,  G01V3/12

摘要： The present invention relates to an airplane detection system to surely detect an airplane moving along a runway or a taxiway. The system employs a wheel detection sensor for providing a wheel detected output when emitted electromagnetic waves are blocked by the wheels of the airplane and a fuselage detection sensor for providing a fuselage detected output when receiving the reflection of the emitted electromagnetic waves from the fuselage of the airplane. According to the output signals from both the sensors, the system detects the airplane.

摘要翻译： PCT No.PCT / JP92 / 00343 Sec。 371日期：1993年11月19日 102（e）日期1993年11月19日PCT 1991年3月19日PCT公布。 公开号WO93 / 19387 日期：1993年9月30日。本发明涉及一种可靠地检测沿着跑道或滑行道移动的飞机的飞机检测系统。 该系统采用车轮检测传感器，用于当发射的电磁波被飞机的车轮阻挡时提供车轮检测的输出;以及机身检测传感器，用于当从机身的机身接收发射的电磁波的反射时提供机身检测的输出 飞机。 根据两个传感器的输出信号，系统检测飞机。