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公开(公告)号：US4232285A
公开(公告)日：1980-11-04
申请号：US852726
申请日：1977-11-18
摘要： An electromagnetic detector designed to monitor road traffic, responsive to a modification of an electromagnetic field produced by the presence of a metallic mass in the vicinity thereof, comprises a metal base on which are disposed a transmitting coil creating a field and a receiving coil whose axis deviates from the perpendicular to the base. The receiving coil detects a measuring field created by the currents induced in the base by the transmitted field. The processed signal is the resultant of the signal produced by the presence of a metallic mass in the transmitted field and by the signal due to the measuring field.
摘要翻译： 一种用于监测道路交通的电磁检测器，其响应于在其附近存在金属物质而产生的电磁场的变化，包括：金属基座，其上设置有产生场的发射线圈和接收线圈，轴线 偏离与基座的垂直线。 接收线圈检测由通过场发射的基极中感应的电流产生的测量场。 经处理的信号是由于在发射场中存在金属质量而产生的信号以及由于测量场引起的信号的结果。
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公开(公告)号：US4050834A
公开(公告)日：1977-09-27
申请号：US655091
申请日：1976-02-04
申请人： John H. Lee
发明人： John H. Lee
IPC分类号： G08G1/095 , E01F9/03 , E01F9/06 , E01F9/08 , F21K99/00 , F21S8/00 , F21S9/02 , F21S9/03 , H05B33/08 , E01F11/00
CPC分类号： H05B33/0842 , E01F9/559 , E01F9/582 , E01F9/669 , F21S9/02 , F21S9/03 , H05B33/0803 , F21W2111/02 , F21W2111/06 , F21Y2101/00
摘要： A traffic control device in which a solid state light source such as a light emitting diode (LED) is energized by a power supply such as a battery pack contained within the device. The battery life and conspicuousness of the device are enhanced by providing a network which includes an oscillator circuit and a photocell for intermittently energizing the LED only when the intensity of the ambient light is below a predetermined level. In a preferred embodiment, a plurality of LED's are sequentially energized to enable directional control.
摘要翻译： 其中诸如发光二极管（LED）的固态光源由诸如包含在该装置内的电池组的电源供电的交通控制装置。 通过提供包括振荡器电路和光电池的网络来增强设备的电池寿命和显着性，该光电池仅在环境光的强度低于预定水平时间断地给LED供电。 在优选实施例中，多个LED被依次通电以实现方向控制。
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公开(公告)号：US3911390A
公开(公告)日：1975-10-07
申请号：US41353873
申请日：1973-11-07
申请人： MYERS RICHARD H
发明人： MYERS RICHARD H
摘要： An elongated traffic sensor strip having a plurality of separate segments each appropriately spaced along the sensor to monitor traffic in separate lanes of a multi-lane roadway. A sealed envelope encloses segmented pressure-sensitive elements and a plurality of conductors connected to the individual elements. Metallic plates are positioned in the envelope along the length of the strip for attaching the strip to the surface of the roadway. In one embodiment, the elements have a pair of conductor plates normally held in spaced parallel relationship and movable to contact each other upon compression of the elements. In another embodiment, the elements have a coaxial cable which produces an electrical effect when subjected to pressure.
摘要翻译： 一个细长的交通传感器条带，具有多个独立的段，每个分隔段沿着传感器适当间隔开以监测多车道道路的单独车道中的交通。 密封的信封包围分段的压敏元件和连接到各个元件的多个导体。 金属板沿着条的长度定位在信封中，用于将条带附接到道路的表面。 在一个实施例中，这些元件具有通常保持间隔开的平行关系的一对导体板，并且可以在元件压缩时彼此接触。 在另一个实施例中，这些元件具有同轴电缆，其在受到压力时产生电效应。
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公开(公告)号：US3870990A
公开(公告)日：1975-03-11
申请号：US36177073
申请日：1973-05-18
发明人： FATHAUER GEORGE H
摘要： A vehicle presence detector is disclosed using a detector loop made to resonate at a harmonic of the oscillator driving frequency. A phase detection apparatus is included capable of detecting changes in the relative phase of two signals in a random harmonic relationship. The oscillator frequency is voltage controlled and a feedback loop from the phase detection apparatus is provided to tune the oscillator and eliminate the effect of environmental changes.
摘要翻译： 公开了一种使用在振荡器驱动频率的谐波谐振的检测器环路的车辆存在检测器。 包括能够检测随机谐波关系中的两个信号的相对相位变化的相位检测装置。 振荡器频率被电压控制，并且提供来自相位检测装置的反馈回路以调谐振荡器并消除环境变化的影响。
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公开(公告)号：US3762825A
公开(公告)日：1973-10-02
申请号：US3762825D
申请日：1971-05-27
申请人： REPUBLIC STEEL CORP
发明人： REUSSER H
CPC分类号： E01F9/553
摘要： A marker for indicating traffic lanes on a roadway, in the form of a vault-like metal stamping with a generally flat base comprised of peripherally spaced, inwardly bent, tabs that underlie only a portion of an upper surface of the marker. The upper surface is continuous, with alternate, generally radially extending, ridges and depressions. A preferred configuration of the upper surface has flat horizontal portions at base level, spaced between the ridges at the periphery of the marker, forming a part of the depressions. The ridges incline steeply upward and inward from the periphery and extend generally parallel to the base at the central part of the marker. In one embodiment, an opening is provided in an inclined face of the upper surface for a reflector having a flat face inclined at approximately the same angle as the surface in which the opening is formed. The reflector is of the cube-corner type in which a plane common to the cube corners is perpendicular to the cube-corner axes and angularly related to the front face of the reflector. The plane of the cube corners is located substantially behind the front face, recessed from the opening, and a major portion of the cubecorner pattern extends the full width of the opening in the upper surface of the marker.
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公开(公告)号：US3609678A
公开(公告)日：1971-09-28
申请号：US3609678D
申请日：1969-04-28
发明人： FAYLING RICHARD E
IPC分类号： G05D1/02 , G08G1/0967 , G08G1/09 , E01F11/00
CPC分类号： G08G1/096716 , G05D1/0261 , G05D2201/0213 , G08G1/096725 , G08G1/096758 , G08G1/096783
摘要： Magnet installations on roadways and methods for providing control information to vehicles traveling on the roadways. The magnets are polymer-based magnets, which comprise a tough organic polymeric matrix and particles of magnetic material uniformly distributed through the matrix. The magnets are often installed in the form of a sheet or tape in a channel formed in the roadway surface, and are arranged in geometries or magnetized in patterns to develop information-providing signals in magnetic-flux-sensors in vehicles traveling over the magnets.
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公开(公告)号：US3476291A
公开(公告)日：1969-11-04
申请号：US3476291D
申请日：1968-06-13
发明人： GLASER DONALD A
CPC分类号： B67D1/1234
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公开(公告)号：US3090401A
公开(公告)日：1963-05-21
申请号：US77326058
申请日：1958-11-12
申请人： CALPAT PRODUCTS INC
发明人： HANDLEY JOHN R
CPC分类号： G07F17/246 , E01F11/00 , G08G1/02
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公开(公告)号：US1734228A
公开(公告)日：1929-11-05
申请号：US32926628
申请日：1928-12-29
申请人： FRANK PAGE
发明人： FRANK PAGE
IPC分类号： E01F11/00
CPC分类号： E01F11/00
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公开(公告)号：US12095287B2
公开(公告)日：2024-09-17
申请号：US17460479
申请日：2021-08-30
申请人： DENSO CORPORATION
发明人： Takuya Kiguchi , Nobuhisa Yamaguchi , Eisuke Takahashi , Hayato Sumiya , Tomoyuki Fujikawa , Koji Mazaki , Shimpei Takita , Masaki Kanesaki , Masaya Takahashi , Kazuhiro Uda , Yusei Nakayashiki , Mitsuru Shibanuma , Kazuyoshi Obayashi
CPC分类号： H02J50/402 , B60L5/42 , E01F11/00 , H01F27/245 , H01F27/363 , H02J50/10 , H02J2310/48
摘要： A dynamic wireless power transfer system performs, through a plurality of primary coils installed along a traveling direction of a road and a secondary coil mounted in a vehicle, power transfer to the vehicle while the vehicle is traveling. The secondary coil is an M-phase coil including M coils, M denoting an integer which is two or higher. The M coils each include a coil end extending along a front-rear direction of the vehicle and a main coil portion extending along a width direction of the vehicle, the M coils each being configured such that a magnetic resistance of a magnetic path where a magnetic flux of the coil end passes is higher than a magnetic resistance of a magnetic path where a magnetic flux of the main coil portion passes.
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