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公开(公告)号：US20110309205A1
公开(公告)日：2011-12-22
申请号：US12818472
申请日：2010-06-18
摘要： There is provided a track current suppression device. An exemplary device includes an input coupled between rails of a railway track and configured to receive an input voltage corresponding to a track current. The exemplary device also includes an amplifier configured to receive the input voltage and generate a cancellation current. The exemplary device also includes an output coupled between the rails of the railway track and configured to deliver the cancellation current to the rails with reversed polarity compared to the track current.
摘要翻译： 提供了轨道电流抑制装置。 示例性设备包括耦合在铁路轨道的轨道之间并被配置为接收对应于轨道电流的输入电压的输入。 示例性装置还包括被配置为接收输入电压并产生消除电流的放大器。 示例性装置还包括耦合在铁路轨道的轨道之间的输出，并且被配置成与轨道电流相比极性地将抵消电流传递到轨道。
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公开(公告)号：US08376286B2
公开(公告)日：2013-02-19
申请号：US12818472
申请日：2010-06-18
摘要： There is provided a track current suppression device. An exemplary device includes an input coupled between rails of a railway track and configured to receive an input voltage corresponding to a track current. The exemplary device also includes an amplifier configured to receive the input voltage and generate a cancellation current. The exemplary device also includes an output coupled between the rails of the railway track and configured to deliver the cancellation current to the rails with reversed polarity compared to the track current.
摘要翻译： 提供了轨道电流抑制装置。 示例性设备包括耦合在铁路轨道的轨道之间并被配置为接收对应于轨道电流的输入电压的输入。 示例性装置还包括被配置为接收输入电压并产生消除电流的放大器。 示例性装置还包括耦合在铁路轨道的轨道之间的输出，并且被配置成与轨道电流相比极性地将抵消电流传递到轨道。
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公开(公告)号：US5924652A
公开(公告)日：1999-07-20
申请号：US939777
申请日：1997-09-29
申请人： Forrest H. Ballinger
发明人： Forrest H. Ballinger
CPC分类号： B61L29/286 , B61L1/188
摘要： A reliable and consistent electrical contact path between the rails of a section of railroad track established by the shunting effect of the wheels and axles of a train is ensured by applying time-spaced, short duration electrical pulses to the rails at a voltage level sufficient to overcome poor wheel/rail contact. Each of the pulses is produced by a generator that discharges a capacitor across the rails. The narrow pulse width inductively isolates the pulse generator and associated track section from adjacent stretches of track, and the spacing between pulses further avoids interference with other types of electrical track equipment. A detector responsive to the voltage on the rails disables the pulse generator when the received voltage exceeds a threshold and thus indicates that no train wheels are present in the track section. In a grade crossing warning system, once activated the pulse generator and detector assume the role of the island detection circuit and maintain the crossing warning.
摘要翻译： 通过在列车的车轮和车轴的分流效应下建立的铁路轨道的轨道之间的可靠和一致的电接触路径，通过将时间间隔短的持续时间的电脉冲施加在轨道上，电压水平足以 克服糟糕的车轮/轨道接触。 每个脉冲由发生器产生，该发生器通过轨道放电电容器。 窄脉冲宽度电感地将脉冲发生器和相关的轨道部分与相邻的轨道段隔离，并且脉冲之间的间隔进一步避免了与其他类型的电气轨道设备的干扰。 响应于轨道上的电压的检测器在接收电压超过阈值时禁用脉冲发生器，并且因此表示轨道部分中不存在轮系。 在等级交叉警告系统中，一旦激活脉冲发生器和检测器，就承担岛检测电路的作用，并保持交叉警告。
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公开(公告)号：US4934633A
公开(公告)日：1990-06-19
申请号：US255135
申请日：1988-10-07
IPC分类号： B61L29/28
CPC分类号： B61L29/28
摘要： Warning lights at a railroad grade crossing are energized at a predetermined flash rate when a train is approaching through the use of an essentially fail-safe solid state crossing controller employing circuitry that is active in creating an off condition of the warning lamps. A controller unit operates a pair of warning lamps alternately in synchronism with a warning rate (flash rate) signal having a predetermined repetition rate, such as 55 pulses per minute. When the crossing is safe, an RC circuit in the lamp driver responds to a 500 Hz safe status signal by providing continuous control excitation to a normally conductive lamp switching circuit to maintain the lamps deenergized. In a failure mode, the normal condition of the switching circuit maintains one lamp of each pair continuously energized. Alternate flashing of a lamp pair is accomplished in synchronism with the warning rate signal by alternating an oscillator at the flash rate between two output frequencies and applying the oscillator output as modulation on the supply current to the lamps. Additional lamp pairs are operated by independent control units all responsive to the alternating oscillator output.
摘要翻译： 当火车通过使用本质上故障安全的固态交叉控制器接近时，在铁路坡口处的警示灯以预定的闪光速率被激励，该电路采用有助于产生警告灯的关闭状态的电路。 控制器单元与具有预定重复频率的警告速率（闪光速率）信号同步地交替地操作一对警告灯，例如每分钟55个脉冲。 当交叉路口安全时，灯驱动器中的RC电路通过向正常导通的灯开关电路提供连续的控制激励来响应500Hz的安全状态信号，以保持灯被断电。 在故障模式中，开关电路的正常状态保持每对的一个灯持续通电。 通过以两个输出频率之间的闪光速率交替振荡器并且将振荡器输出作为对电流的供给电流的调制施加到灯来，通过与警告速率信号同步地实现灯对的交替闪烁。 附加的灯对由独立的控制单元操作，全部响应交替的振荡器输出。
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公开(公告)号：US5436787A
公开(公告)日：1995-07-25
申请号：US140678
申请日：1993-10-21
申请人： Forrest H. Ballinger
发明人： Forrest H. Ballinger
摘要： A three-terminal surge arrestor unit employs air gaps augmented with semiconductors to protect a circuit having two ungrounded conductors. Conductive electrodes and the semiconductors are mounted on a common axis in a sandwich arrangement and secured in fixed relative positions. Two air gap lightning arrestors provide current paths for the respective conductors to ground in response to lightning strikes or other damaging surges, and an equalizer is incorporated in the electrode configuration to establish a current path between the conductors to protect them from an excessive voltage differential. The resulting configuration is a single, three-terminal unit designed to replace multiple unit air gap systems and gas tube arrestors.
摘要翻译： 三端子避雷器单元采用增加半导体的气隙来保护具有两个未接地导体的电路。 导电电极和半导体以夹层结构安装在公共轴上并固定在固定的相对位置。 两个气隙避雷器为相应的导体提供电流路径，以响应雷击或其他有害的浪涌而接地，并且在电极配置中并入均衡器以建立导体之间的电流路径，以保护它们免受过大的电压差。 最终的配置是一个单一的三端子单元，旨在替代多个单元气隙系统和气体管避雷器。
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公开(公告)号：US5170970A
公开(公告)日：1992-12-15
申请号：US586444
申请日：1990-09-21
申请人： Forrest H. Ballinger
发明人： Forrest H. Ballinger
IPC分类号： B61L29/28
CPC分类号： B61L29/286
摘要： A reliable and consistent electrical contact path between the rails of a railroad track established by the shunting effect of the wheels and axles of a train is ensured by applying an alternating current signal to the rails at a voltage level sufficient to overcome poor wheel/rail contact and cause a wetting current to flow between the rails. This likewise provides a current path for railroad control and communication signals, such as the island circuit signal of a grade crossing warning system. The effective range of the wetting current signal is limited by providing the signal with a frequency of 10 KHz or higher to inductively isolate the signal source and associated stretch of track from any shunts beyond that stretch. To avoid interference with other types of electronic track equipment, the signal is applied only when required. In grade crossing warning systems, it is controlled in a fail-safe manner.
摘要翻译： 通过车轮和车轴的分流效应建立的轨道轨道之间的可靠和一致的电接触路径通过在足以克服差的车轮/轨道接触的电压水平的轨道施加交流信号来确保 并导致润滑电流在导轨之间流动。 这同样提供了用于铁路控制和通信信号的电流路径，例如等级交叉警告系统的岛电路信号。 通过提供频率为10KHz或更高的信号来限制润湿电流信号的有效范围，以将信号源和相关联的延伸线与任何分流超过该拉伸的电感隔离。 为了避免与其他类型的电子轨道设备的干扰，信号仅在需要时才应用。 在等级过渡预警系统中，以故障安全的方式进行控制。
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公开(公告)号：US4868538A
公开(公告)日：1989-09-19
申请号：US254971
申请日：1988-10-07
IPC分类号： B61L29/28
CPC分类号： B61L29/286
摘要： An island circuit detects the presence of a train on a crossing island, and, in response, de-energizes a normally energized relay to activate a warning. A random signature signal is generated and transmitted through the rails from a transmitter to a receiver connected to the rails on either side of the island. If a train is present within the island, the wheels and axles form an electrical shunt, preventing the receiver from detecting the transmitted signal. The circuit employs solid state micro-electronic components and ancillary components, and embedded software for controlling and monitoring the circuit functions. The random signature signal is characterized by a relatively high voltage level but a low duty cycle on the order of ten percent, and has three variables: (1) frequency; (2) duration time of the pulse, or burst, of the signal; and (3) the delay between successive bursts. Each of the three variables randomly assumes any one of eight different discrete values. Each time a signal is received, the detector checks to determine whether the received signal matches the transmitted signature signal. If three consecutive transmitted and received signals do not match, the island warning device is activated, and then five consecutive matched signals are required to reset the system and cancel the island warning. This feature allows the island circuit to discriminate against signals from other island circuits or recover from a temporary malfunction, and return to normal operation.
摘要翻译： 岛电路检测交叉岛上的列车的存在，并且作为响应，使正常通电的继电器断电以激活警告。 生成随机签名信号并通过轨道从发射机传输到连接到岛两侧轨道的接收机。 如果列车在岛内存在，则车轮和车轴形成电气分流，防止接收机检测到发射信号。 该电路采用固态微电子元件和辅助元件，以及用于控制和监控电路功能的嵌入式软件。 随机签名信号的特征在于相对较高的电压电平，但是低占空比大约为10％，并且具有三个变量：（1）频率; （2）信号的脉冲或脉冲串的持续时间; 和（3）连续突发之间的延迟。 三个变量中的每一个随机地假设有八个不同离散值中的任何一个。 每次接收到信号时，检测器检查以确定接收到的信号是否与发送的签名信号相匹配。 如果三个连续的发送和接收信号不匹配，则岛上警告装置被激活，然后需要五个连续匹配的信号来复位系统并取消岛屿警告。 该特征允许岛电路鉴别来自其他岛电路的信号或从临时故障中恢复，并返回到正常操作。
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公开(公告)号：US4581700A
公开(公告)日：1986-04-08
申请号：US637911
申请日：1984-08-06
CPC分类号： B61L29/226 , B61L29/284 , B61L29/30
摘要： A railroad train moving along an approach to a grade crossing (or other location of interest) is detected by apparatus that is responsive to the change in effective track impedance caused by the moving shunt. A constant current AC signal is applied to the track adjacent the crossing, and the resulting voltage changed in amplitude and phase is picked off by a receiver on the opposite side of the crossing. Voltage and current information derived from these signals is inputted to a microcomputer which calculates the track impedance and determines whether or not a warning device or devices at the crossing should be activated. Such determination is made on a repetitive basis in accordance with a repeating program loop and stored in memory. To assure that the system is failsafe, the program loop is interrupted at predetermined intervals and an interrupt service routine checks the memory address at which the determination is stored and causes an independent computer output to change state each time the memory is checked and activation of the warning is not required. Accordingly, the independent output is toggled to produce an AC output signal, the loss of which initiates activation of the warning. The program executes each loop in a fixed time period which is monitored, and if the program is not executed within such period, the system is forced to reset and the warning is activated until the proper time constraints are again met. A self check also assures that the system will respond to the loss of the AC output signal.
摘要翻译： 通过对由移动分路引起的有效轨道阻抗的变化作出响应的装置来检测沿着接近坡度交叉点（或其他感兴趣的位置）移动的铁路列车。 恒定电流AC信号被施加到与交叉点相邻的轨道上，并且所得到的振幅和相位变化的电压被交叉点的相对侧上的接收器拾取。 从这些信号导出的电压和电流信息被输入到计算轨道阻抗的微型计算机，并且确定是否应激活交叉路口处的警告装置或装置。 这种确定是根据重复的程序循环重复进行的并存储在存储器中。 为了确保系统故障安全，程序循环以预定间隔中断，并且中断服务程序检查存储确定的存储器地址，并且使得独立计算机输出在每次检查存储器时改变状态，并激活 不需要警告。 因此，独立输出被切换以产生AC输出信号，其损失启动警告的激活。 该程序在被监视的固定时间段内执行每个循环，并且如果程序在这样的时间段内没有被执行，则系统被强制复位，并且在再次满足适当的时间限制之前激活该警告。 自检也可确保系统对AC输出信号的丢失作出响应。
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公开(公告)号：US09019115B2
公开(公告)日：2015-04-28
申请号：US12830081
申请日：2010-07-02
申请人： Forrest H. Ballinger
发明人： Forrest H. Ballinger
摘要： There is provided a radar system that includes an emitter system (e.g., an antenna), configured to emit electromagnetic pulses and detect electromagnetic pulses, and a reflection target, placed opposite the emitter system. The emitter system and the reflection target define an area of interest. A controller is configured to identify a reflection from the reflection target and, if the reflection is not identified, to stop sending a radar check signal. The radar system may be part of a warning horn control system, where the radar check signal is used as a control input for activating a warning horn.
摘要翻译： 提供了一种雷达系统，其包括被配置为发射电磁脉冲并检测电磁脉冲的发射器系统（例如，天线）和与发射器系统相对放置的反射目标。 发射器系统和反射目标定义了感兴趣的区域。 控制器被配置为识别来自反射目标的反射，并且如果没有识别出反射，则停止发送雷达检查信号。 雷达系统可以是警告喇叭控制系统的一部分，其中雷达检查信号用作用于激活警告喇叭的控制输入。
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公开(公告)号：US08764461B2
公开(公告)日：2014-07-01
申请号：US13637266
申请日：2011-02-28
申请人： Forrest H. Ballinger
发明人： Forrest H. Ballinger
IPC分类号： H01R4/66
摘要： A system for electrically connecting a conductor to a track member includes a clamp base, a clamp bolt, and a wire bolt. The clamp base receives part of the track member, and has a threaded throughbore. The clamp bolt includes a spike pin and a body that is threaded for screwing into the clamp base. The body defines a threaded recess. The wire bolt has a longitudinal throughbore, and is threaded for screwing into the recess. When the conductor is positioned through the wire bolt and the wire bolt is screwed into the recess, the wire bolt holds the conductor in place in electrical engagement with the clamp bolt. When the track member part is received in the clamp base and the clamp bolt is screwed through the clamp base, the spike pin bites into the track member for establishing an electrical connection and clamping the clamp base in place.
摘要翻译： 用于将导体电连接到轨道构件的系统包括夹具基座，夹紧螺栓和线螺栓。 夹具底座接收轨道构件的一部分，并具有带螺纹的通孔。 夹紧螺栓包括钉销和被螺纹拧入夹具基座的主体。 主体限定螺纹凹槽。 线螺栓具有纵向通孔，并且被螺纹拧入凹槽中。 当导体通过线螺栓定位并且螺栓拧入凹槽中时，电线螺栓将导体保持在与夹紧螺栓电接合的位置。 当轨道构件部分被容纳在夹具基座中并且夹紧螺栓拧入夹具基座时，尖钉销咬入轨道构件以建立电连接并将夹具基座夹紧就位。
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