摘要:
A position recognition apparatus for personal rapid transit. The personal rapid transit system comprises a chassis (40) for moving at the inside of a guideway (10) and a chamber for passengers being mounted on the chassis (40) at the outside of the guideway (10). The chassis (40) is provided with guidance wheels (41 and 42), electric linear motors (44a and 44b), a switching device, brakes, a control apparatus (70) and electric power supply devices. Bar code scanners (60a and 60b) are installed at both sides of the chassis (40) in the inside of the guideway (10). Bar codes include figures and letters indicating sections and positions at a certain interval on the guideway (10), and are printed on bar code members (50a and 50b) having a predetermined width which is made of plastics. The plastic bar code members (50a and 50b) on which the same bar codes are printed are attached to both sides of the guideway (10). The scanners (60a and 60b) recognize positions and speed of the vehicles (80) from bar codes which are arranged opposite to the scanners (60a and 60b) fixed at the chassis (40) of the vehicles (80), and transmit the data to a computer which is installed adjacent to the scanners (60a and 60b) for controlling the vehicles (80). The computer controls the driving motors of the vehicles (80) to thereby provide effects of performing accurate interval maintenance and preventing in advance rear-end collision and collision between vehicles under the control of interval and speed.
摘要:
An apparatus for monitoring at a distance the open or closed state of at least one contact. The installation consists of a non-security control circuit made up of coder couples (such as CM.sub.1, CV.sub.1 CM.sub.2, CV.sub.2 and CM.sub.3 CV.sub.3) and a microcontroller (1), connected by a modem (2) and a data transmission link (3) to a central security control (LST). This installation is useful in the railway domain, to remotely monitor contacts.
摘要:
The transponder is constituted by a waveguide (1) having a large face (2) including longitudinal slots (3) and pairs of slots distributed along the axis (WW') of the large face at one pair per n longitudinal slots. Each pair is constituted by two transverse slots (4, 4') situated facing a longitudinal slot. The presence of a pair corresponds to a one value bit and the absence of a pair corresponds to a zero value bit. The longitudinal slots receive radiation from a transmit antenna (A1) including a low frequency and a high frequency. They radiate to a first receive antenna (A2) using radiation at the high frequency. The pairs radiate to a second receive antenna (A3) using radiation at the low frequency. The antennas are fixed relative to one another and they move relative to the transponder.
摘要:
A vehicle location system for vehicles travelling over a predetermined route in which equipment in the vehicle derives information concerning the distance travelled from predetermined junctions and the turns made and computing means within the vehicle computes the route between road junctions on which the vehicle is travelling. Each vehicle carries transmitter means for transmitting computed location information to a base station when interrogated by the same.