摘要:
Trains approaching the junction switch for two converging rail lines are detected by separate approach relays which repeat one or more track sections along each approach line. Each approach relay is reset when the train from the corresponding branch, as designated by switch correspondence relays, occupies the switch detector track section. The approach relays control the position of a magnetic stick sequencing relay. The reset of each approach relay by switch section occupancy assures the alternate positioning of the sequencing relay when successive trains simultaneously approach on both branches. The sequencing relay position selects a corresponding interlocking route relay which prepares and initiates the establishment of the route over the junction switch for the next train. Since the sequencing relay alternately operates to each of its positions, the route relays are alternately selected and trains thus alternately move from each approach branch line into the single track.
摘要:
A valve for controlling thrust for levitated vehicles from a source of fluid under pressure to a vehicle that is being levitated and propelled, and used in combination with a vehicle speed control system that uses the time of movement of a vehicle from one point to another as a reference. The amount of opening of the valve is adjusted in accordance with the speed of the vehicle which is to receive thrust from the thruster device.
摘要:
An oncoming train alarm assembly for a railroad track includes a housing that defines an interior space. The housing is positioned on a first side of a railroad track. A power module and a microprocessor are coupled to the housing and positioned in the interior space. The microprocessor is operationally coupled to the power module. A transmitter and a speaker are coupled to the housing and operationally coupled to the microprocessor. The microprocessor is positioned to command the transmitter to transmit a photoelectric beam. A receiver is positioned on a second side of the railroad track. The receiver is operationally coupled to the microprocessor and aligned with the transmitter. The receiver is positioned to detect the photoelectric beam and to signal the microprocessor in event of a blocking of the photoelectric beam, positioning the microprocessor to actuate the speaker to sound an alarm to warn persons of an oncoming train.
摘要:
An economical information transmission system for rail transport includes a transmitter having a known transmission power for communication between a track section and a rail vehicle. A receiver has at least one first adjustable receive level threshold, with which a maximum distance between the transmitter and the receiver can be defined in a particular application, within which the receiver is able to receive with respect to the transmitter. An information transmission method is also provided.
摘要:
Systems and methods for detecting train direction and route along a railroad track. The systems and methods use wireless train presence detection sensors such as e.g., magnetometer sensors to detect the presence of the train, and its direction and route along the track.
摘要:
A method is proposed for setting an output voltage of a receiving circuit (5) of a receiving head (4) of a rail contact and a rail contact system for executing the method, at least one receiving voltage tapped from the receiving head (4) of the rail contact being superposed by at least one adjustment voltage to produce the output voltage. The adjustment voltage is tapped by a transformer circuit (20) from a transmitting circuit (2) of the rail contact as a voltage proportional to an electric current flowing in a transmitting coil (7) of the rail contact.
摘要:
Driverless vehicles move in one direction along elongated, lengthwise adjacent radiators that are energized with command signals to which the vehicles respond. The radiators are grouped in lengthwise adjacent blocks. A radiator just in front of each block boundary and another just behind it are energizable alternatively through a bistable switch device. A vehicle crossing a block boundary generates a control signal which actuates the switch device for that boundary, transferring energization from the radiator just behind the boundary to the one just ahead of it, so the vehicle can advance into the block in front of the boundary. Boundary crossing also actuates the switch device for the boundary behind the vehicle, to enable a following vehicle to approach the block the first vehicle is leaving.
摘要:
A chronograph mechanism mounted on the gear train of a timepiece movement. A coupling device and a locking device on the driven end of the mechanism are operable for synchronistic movement; a braking device on the terminal end of the mechanism operates to secure the gear train at both ends when the mechanism is disconnected from the movement so as to prevent any slippage of the gears.
摘要:
A vehicle to be detected is moved along a track divided into a plurality of sections, with a boundary between each adjacent pairs of sections. A radiant energy transmitter is situated at one side of the track at each such boundary, and a radiant energy receiver is situated on the other side of the track for receiving the transmitted radiant energy. The passing of a train through a boundary blocks the transmission of the radiant energy from the transmitter to the latter receiver. A radio (high frequency) signal receiving means is situated at each boundary adjacent the radiant energy receiver, for receiving a radio signal from a train carried antenna each time a train passes the boundary. In response to the sensing of radiant energy at a given boundary, concurrent with the reception of a radio signal from a given train passing the succeeding boundary, a signal is generated for controlling the speed of another train in at least the section preceding the given boundary.