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公开(公告)号：US4196412A
公开(公告)日：1980-04-01
申请号：US869740
申请日：1978-01-16
IPC分类号： B61L29/24 , G08G1/0967 , G08G1/02 , G08B23/00
CPC分类号： G08G1/096716 , B61L29/246 , G08G1/096758 , G08G1/096783
摘要： Apparatus for insuring a vehicle operator's attentiveness at potentially dangerous locations along a path of travel. A signalling device is provided in advance of a potentially dangerous location, in the direction of travel of the vehicle. A vehicle carried signal responsive device responds to the signalling device when within the effective zone of the signalling device. The vehicle includes warning apparatus, for example, an alarm and a buzzer. The vehicle also includes an operator actuatable push button and a speed sensing apparatus. A control device responds to the push button and to the vehicle carried signal responsive device to operate either the buzzer or the alarm. If the operator evidences his alertness to the potentially dangerous location by actuating the push button prior to reaching the signalling device (within some constraint), the control apparatus merely sounds the buzzer when the signalling device is detected and resets itself. On the other hand, if the operator fails to actuate the push button in advance of detection of the signalling device, or, if his actuation is too far in advance of detection, then the alarm is energized and will remain energized until the vehicle is brought to a stop, or a low speed, at which point, push button actuation can cancel the alarm.
摘要翻译： 用于确保车辆操作员在沿着行进路线的潜在危险位置的注意力的装置。 在潜在的危险位置之前，在车辆的行进方向上提供信号装置。 当信号装置的有效区域内时，车载信号响应装置响应信令装置。 车辆包括警报装置，例如报警器和蜂鸣器。 该车辆还包括操作者致动按钮和速度检测装置。 控制装置响应于按钮和车载信号响应装置来操作蜂鸣器或报警器。 如果操作者通过在到达信令装置之前（在一定的约束条件下）启动按钮来证明其对潜在危险位置的警觉性，则当检测到信令装置并且自动重置时，控制装置仅发出蜂鸣器。 另一方面，如果操作者在检测到信号装置之前未能按下按钮，或者如果其启动在检测之前太远，则报警器被通电并且将保持通电直到车辆被带入 停止或低速，此时按钮启动可以取消报警。
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公开(公告)号：US4157580A
公开(公告)日：1979-06-05
申请号：US874007
申请日：1978-01-31
CPC分类号： H03K5/15 , H01H47/002 , H03K5/151 , H03K5/1515 , H01H47/043 , H01H47/18
摘要： A fail-safe time delay circuit is provided to produce an output a predetermined time, and no less than a predetermined time after an input stimulus. The circuit includes a driving circuit for a pair of relays which are operated at slightly greater than 50% duty cycle and out of phase such that, except when the circuit is de-energized, at least one of the relays is always energized. The contacts of the two relays are employed in a balanced voltage amplifier to produce a bi-polar signal, with the magnitude of both polarities increasing, with the time required for the increase to a defined threshold establishing the time delay. A pair of threshold circuits are coupled to the output of the balanced voltage amplifier such that each threshold circuit (one responding to the positive portion, and the other the negative portion of the bi-polar output) is energized when the respective portion of the bi-polar signal is detected to reach the associated threshold. Each of the threshold circuits provides an input to a vital AND gate such that only when the excursion in the bi-polar signal exceeds the threshold of both threshold circuits will the vital AND gate produce an output to energize a load.
摘要翻译： 提供故障安全时间延迟电路以在输入刺激之后不小于预定时间产生预定时间的输出。 电路包括用于一对继电器的驱动电路，其以略大于50％的占空比和异相操作，使得除了当电路断电时，至少一个继电器总是通电。 两个继电器的触点用于平衡电压放大器中以产生双极性信号，两极性的大小随着增加到确定时间延迟的确定阈值所需的时间而增加。 一对阈值电路耦合到平衡电压放大器的输出端，使得每个阈值电路（一个响应于正极部分，另一个是双极输出的负极部分）被激励，当Bi 检测到极性信号以达到相关阈值。 每个阈值电路向重要的与门提供输入，使得只有当双极信号中的偏移超过两个阈值电路的阈值时，重要的“与”门才会产生一个输出以激励负载。
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公开(公告)号：US4168526A
公开(公告)日：1979-09-18
申请号：US882688
申请日：1978-03-02
摘要： A microprocessor based vital delay circuit is provided which is arranged to emit an output no less than a predetermined time after an input stimulus. The predetermined time, which corresponds to the delay, is controlled by selecting the relationship between two quantities. A digital processor performs a series of computations on the two quantities, each computation is arranged to take unit time and by selecting the proper relationship between the two quantities, the total series of computations takes a predetermined amount of time. Before the output is allowed to occur, several checks are performed to insure that no hardware or software failures have erroneously generated the result. One novel checking technique insures that the clock frequency has not changed, and this technique is applicable to a wide variety of devices in which digital techniques are employed.
摘要翻译： 提供了一种基于微处理器的重要延迟电路，其被布置成在输入刺激之后发出不少于预定时间的输出。 通过选择两个量之间的关系来控制对应于延迟的预定时间。 数字处理器对两个量进行一系列计算，每个计算被设置为花费单位时间，并且通过选择两个量之间的适当关系，总计一系列计算需要预定的时间量。 在允许输出发生之前，会执行几次检查，以确保没有硬件或软件故障错误地生成结果。 一种新颖的检查技术确保时钟频率没有改变，并且该技术适用于采用数字技术的各种设备。
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公开(公告)号：US4219837A
公开(公告)日：1980-08-26
申请号：US946461
申请日：1978-09-27
申请人： Mark H. Sluis , John H. Auer, Jr.
发明人： Mark H. Sluis , John H. Auer, Jr.
摘要： An alarm or signalling system between a transmitter station and a receiver station either or both of which may be in motion. A signal is selectively radiated from the transmitter station for detection at the receiver station. The receiver station includes processing means for responding to the received signal and producing a new signal indicative of selected physical relationships between the transmitter and receiver stations during the period of signal transmission and reception. The modified signal may indicate approaching or departing relative motion and/or magnitude of separation. One embodiment may incorporate synchronizing signals transmitted from a central control station. This embodiment may include receiver stations with and without the synchronizing equipment.
摘要翻译： 发射机站和接收站之间的一个或两个或者两个可以运动的报警或信令系统。 从发射台选择性地发射信号，以便在接收机站进行检测。 接收机站包括处理装置，用于在信号发送和接收期间响应接收到的信号并产生指示发射机和接收机站之间选择的物理关系的新信号。 修改的信号可以指示接近或离开相对运动和/或分离的大小。 一个实施例可以包括从中央控制站发送的同步信号。 该实施例可以包括具有和不具有同步设备的接收机站。
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公开(公告)号：US4316652A
公开(公告)日：1982-02-23
申请号：US91314
申请日：1979-11-05
申请人： John H. Auer, Jr. , David Birnbaum
发明人： John H. Auer, Jr. , David Birnbaum
CPC分类号： F21V13/10 , F21V11/00 , G02B5/005 , F21W2111/02
摘要： An improved signal light employing a deep-dish reflector and critically positioned mask or masks for blocking at least some selected light rays having their origin in an external source to reduce, or eliminate, phantom signals. The mask is effective to block out at least a portion of the reflector which reflects light, from an external source, back out of the signal in a direction parallel to the reflector axis. The mask may take the form of a planar ring, a cylindrical surface, a cone or portions thereof. Other shapes may prove expedient or the reflector may be treated in selected and controlled locations to inhibit reflection. The mask may comprise any suitable material such as an opaque material or an electrically controlled optical shutter which is closed when it is desired to inhibit phantom signals and opened to accommodate normal signals.
摘要翻译： 使用深盘反射器和临界定位的掩模或掩模的改进的信号光用于阻挡至少一些其源于外部源的选定光线以减少或消除幻影信号。 该掩模有效地阻挡反射器的至少一部分，该反射器将来自外部源的光沿平行于反射器轴线的方向反射回信号。 掩模可以采取平面环，圆柱形表面，锥体或其部分的形式。 其他形状可能是有利的，或者反射器可以在选择和受控的位置处理以抑制反射。 掩模可以包括任何合适的材料，例如不透明材料或电控光学快门，当希望抑制幻影信号并打开以适应正常信号时，其被关闭。
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公开(公告)号：US4118750A
公开(公告)日：1978-10-03
申请号：US759304
申请日：1977-01-14
申请人： John H. Auer, Jr. , Henry C. Sibley
发明人： John H. Auer, Jr. , Henry C. Sibley
CPC分类号： B61L1/188 , H01H47/002 , H01H47/20
摘要： There is disclosed a circuit for energizing a vital relay in response to an input signal that is modulated between two frequencies. A discriminator circuit responds to the modulated frequencies and alternately produces an output patented of one polarity and then a reverse polarity in response to the modulated signals. Coupled between the discriminator and the vital relay is a relay driver which responds to the output of the discriminator and energizes the vital relay. A d.c. power supply is coupled to the relay driver. The vital relay includes two windings. Failure of the modulation, the d.c. source or virtually any circuit element, will result in release of the vital relay. The disclosed embodiment uses photoresistors as switching elements.
摘要翻译： 公开了一种用于响应于在两个频率之间调制的输入信号来激励重要继电器的电路。 鉴频器电路响应于调制频率，并且响应于调制信号交替地产生一个极性然后是相反极性的专利的输出。 鉴别器和重要继电器之间的耦合是继电器驱动器，其对鉴别器的输出进行响应并为重要继电器通电。 一个d.c. 电源耦合到继电器驱动器。 重要的继电器包括两个绕组。 调制失败，直流 源或几乎任何电路元件将导致重要继电器的释放。 所公开的实施例使用光敏电阻作为开关元件。
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7.发明授权
公开(公告)号：US4007897A
公开(公告)日：1977-02-15
申请号：US611742
申请日：1975-09-09
申请人： John H. Auer, Jr.
发明人： John H. Auer, Jr.
摘要： A vehicle control system monitors vehicle passage at predetermined locations. Each time a vehicle passes a predetermined location a window is created for passage of that vehicle at the next predetermined location. So long as the vehicle actually passes the next location during the window the vehicle is allowed to continue its travel. As a further check each location ensures that safe separation is maintained between vehicles by allowing continued travel only if a minimum time separation is maintained. The system also responds to coupled vehicles by detecting that the time separation is below a predetermined value indicative of coupled vehicles and thus minimum time separation need not be enforced. In one embodiment, passage of a vehicle outside of a time window results in immediate protective action such as by de-energizing the power to each of the vehicles in the system to prevent violation of minimum safe separation rules. In another embodiment, however, vehicle detectors are spaced closely enough such that minimum safe headway requirements will not be violated even if vehicle passes outside a window.
摘要翻译： 车辆控制系统在预定位置监测车辆通道。 每当车辆通过预定位置时，在下一个预定位置创建一个车辆通过该车辆的窗口。 只要车辆实际上在窗口内通过下一个位置，车辆被允许继续行驶。 作为进一步检查，每个位置确保通过仅在保持最小时间间隔的情况下允许继续行驶来保持车辆之间的安全分离。 该系统还通过检测到时间分离低于指示耦合的车辆的预定值来响应耦合的车辆，因此不需要执行最小的时间间隔。 在一个实施例中，车辆在时间窗外的通过导致立即的保护动作，例如通过使系统中的每个车辆断电，以防止违反最小安全分离规则。 然而，在另一个实施例中，车辆检测器间隔得足够紧密，使得即使车辆通过窗户外也不会违反最小安全行驶要求。
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公开(公告)号：US4728063A
公开(公告)日：1988-03-01
申请号：US894223
申请日：1986-08-07
CPC分类号： B61L23/044
摘要： Broken rail detection in a block of track without the need or expense of conventional signalling uses a chain of transmitters and receivers connected to the rails and defining sections of the block between the ends of the block. Either cyclically at a predetermined code rate or upon command of an external unit; an alternating current (AC) signal is launched from one end of the block and is repeated at different frequencies in each of the sections. When received at the end of the block, an indication of the absence of a broken rail condition is given either (a) by way of pole line or radio communication to a central control or dispatcher point and thence back to the trains, or (b) signals at the ends of the block are flashed at the code rate. The detected signal at the code rate may be used to modulate a direct current which is transmitted along the rails in the block to a signal at the opposite end of the block which also flashes at the code rate to indicate a safe condition. When it is desired to allow more than one train into a block, a signal may be launched after the first train has entered the block. A second train may then enter the block at restricted speed. When the first train exits the block, the previously launched signal arrives at the receiving end providing an indication that the rail is intact in front of the second train.
摘要翻译： 在轨道块中的断轨检测，而不需要传统信令的费用使用连接到轨道的发送器和接收器链，并且在块的端部之间限定块的部分。 以预定的码率循环地或者外部单元的命令; 从块的一端发射交流（AC）信号，并且在每个部分中以不同的频率重复。 在块结束时接收到的情况是，（a）通过极线或无线电通信给中央控制或调度点，然后返回到列车，或（b） ）信号以码率闪烁。 以码率的检测信号可以用于将沿着块中的轨道传输的直流电调制成块的相对端处的信号，该信号也以码率闪烁以指示安全条件。 当希望允许多于一列的列车进入一个区块时，在第一列车进入该区块之后可以启动一个信号。 然后第二列可以限制速度进入该块。 当第一列车离开车厢时，先前发射的信号到达接收端，提供轨道在第二列车前面完整的指示。
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9.发明授权
公开(公告)号：US3991958A
公开(公告)日：1976-11-16
申请号：US589113
申请日：1975-06-23
CPC分类号： B61L3/225 , B61L21/10 , B61L27/0038 , B61L3/121
摘要： The control system operates vehicles over a right-of-way divided into a plurality of zones and selects the direction of traffic along the right-of-way. The presence of a vehicle is sensed when it enters the zone from either direction and the occupancy of the zone is registered. The occupancy registration is indicated by a magnetically actuated switch to operatively control restrictive aspects in accordance with selected number of zones behind the leading vehicle relative to the selected direction of traffic.
摘要翻译： 控制系统通过划分为多个区域的右路操作车辆，并且沿着右路选择交通的方向。 当车辆从任一方向进入该区域并且该区域的占用被登记时，感测车辆的存在。 占用登记由磁力驱动的开关指示，以根据所选车辆的相对于所选择的行驶方向的选定数量的区域来操作地控制限制性方面。
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公开(公告)号：US4617662A
公开(公告)日：1986-10-14
申请号：US560669
申请日：1983-12-12
摘要： A vital communication system connects an input location to an output location using a non-vital communication link. In addition to transmitting, from the input location to the output location, a word with a bit dedicated to each different input, a system check word is transmitted. Each different input is assigned a unique multi-bit value, and the system check word comprises a linear combination of the unique multi-bit values for each of the inputs in a given binary state. Thus, there is a relationship between the transmitted words with bits dedicated to each input line and the system check word. At the output location, this correspondence is checked for. In addition, a further check is employed which first produces an output check word made up of a linear combination of the unique names for each output which are not in the given binary state. This output check word is then linearly combined with the received system check word. In the absence of a failure, the result of this linear combination of the output check word and the system check word should be constant regardless of the particular condition of different inputs and outputs, so long as the output and inputs actually correspond. Apparatus is provided to check for this constant result.
摘要翻译： 重要的通信系统使用非重要的通信链路将输入位置连接到输出位置。 除了从输入位置向输出位置发送具有专用于每个不同输入的位的单词之外，还发送系统检查字。 每个不同的输入被分配唯一的多位值，并且系统检查字包括给定二进制状态中每个输入的唯一多位值的线性组合。 因此，发送的字与专用于每个输入行和系统检查字的位之间存在关系。 在输出位置，检查该对应关系。 另外，进一步检查，其首先产生由不是给定二进制状态的每个输出的唯一名称的线性组合组成的输出检查词。 然后，该输出检查字与接收到的系统检查字线性组合。 在没有故障的情况下，只要输出和输入实际对应，输出检查字和系统检查字的这种线性组合的结果应该是恒定的，而不管不同的输入和输出的特定条件。 提供设备来检查这个恒定的结果。
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