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ATACS
Advanced Train Administration and Communications System (ATACS) is an Automatic Train Control (ATC) system first introduced by JR East on the Senseki Line in 2011. It uses radio communication rather than traditional signals, and works as a moving block system. Technical description Radio transmission Communication between the train and the trackside equipment happens entirely through bidirectional radio communication. Radio base stations are placed at intervals of 2 to 3km and operates on four different frequency bands, used alternately to prevent inference. Radios operate in the 400MHz frequency band, with data transmitted using TDMA access method with Reed–Solomon error correction at 9.6kbps. The radio system are based on proprietary standards with encryption. Ground equipment Ground controller The ground controller, being the main control unit of ground equipment, is responsible for the identification of train locations based on information received from the train ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ATACS Infomationmonitor In JRE 205-3100
Advanced Train Administration and Communications System (ATACS) is an Automatic Train Control (ATC) system first introduced by JR East on the Senseki Line in 2011. It uses radio communication rather than traditional signals, and works as a moving block system. Technical description Radio transmission Communication between the train and the trackside equipment happens entirely through bidirectional radio communication. Radio base stations are placed at intervals of 2 to 3km and operates on four different frequency bands, used alternately to prevent inference. Radios operate in the 400MHz frequency band, with data transmitted using TDMA access method with Reed–Solomon error correction at 9.6kbps. The radio system are based on proprietary standards with encryption. Ground equipment Ground controller The ground controller, being the main control unit of ground equipment, is responsible for the identification of train locations based on information received from the trains, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saikyō Line
The Saikyō Line ( ja, 埼京線, ) is a Japanese railway line operated by the East Japan Railway Company (JR East). It connects Ōsaki Station in Shinagawa, Tokyo, and Ōmiya Station in Saitama Prefecture. The line's name is an abbreviation of the two areas the line connects: Saitama ( ja, 埼玉, links=no) and Tōkyō ( ja, 東京, links=no). At the northern end of the line, some trains continue beyond Ōmiya as far as on the Kawagoe Line; at the southern end of the line, many Saikyō Line trains continue onward beyond Ōsaki to either on the Rinkai Line (operated by Tokyo Waterfront Area Rapid Transit) or on the Sotetsu Main Line (via the Sōtetsu Shin-Yokohama Line). Beside the link that connects the Saikyō and Rinkai lines is the JR East Tokyo General Rolling Stock Centre that stores the rolling stock for the Yamanote Line and other types of rolling stock; and the Hinkaku Line which links Saikyo Line to the Tokaido Freight Line and Sotetsu-JR Link Line. Basic data *O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Senseki Line
The is a railway line in Miyagi Prefecture, Japan, owned and operated by the East Japan Railway Company (JR East). It connects Aoba-dōri Station in Sendai to Ishinomaki Station in Ishinomaki, and provides access to the central coast areas of Miyagi Prefecture, significantly the Matsushima area. It connects with the Sendai Subway Nanboku Line at Aoba-dōri Station; the Tōhoku Shinkansen, the Tōhoku Main Line and the Senzan Line at Sendai Station; and the Ishinomaki Line in Ishinomaki. The name Senseki (仙石) comes from the combination of the first ''kanji'' of Sendai (仙台) and Ishinomaki (石巻), the two cities that the Senseki Line connects. It is also the only line in Sendai area that is powered by DC overhead power line. Basic data *Operators, distances: **East Japan Railway Company (Services and tracks) ***Aoba-dōri — Ishinomaki: 50.2 km / 31.2 mi. **Japan Freight Railway Company (Services and tracks) ***Rikuzen-Yamashita — Ishinomaki-Minato: 1.8&nbs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balise
A balise is an electronic beacon or transponder placed between the rails of a railway as part of an automatic train protection (ATP) system. The French word ''balise'' is used to distinguish these beacons from other kinds of beacons. Balises are used in the KVB signalling system installed on main lines of the French railway network, other than the high-speed Lignes à Grande Vitesse. Balises constitute an integral part of the European Train Control System, where they serve as "beacons" giving the exact location of a train. The ETCS signalling system is gradually being introduced on railways throughout the European Union. Balises are also used in the Chinese Train Control System versions CTCS-2 and CTCS-3 installed on high-speed rail lines in China, which is based on the European Train Control System. A balise which complies with the European Train Control System specification is called a Eurobalise. Overview A balise typically needs no power source. In response to radi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ikebukuro Station
Ikebukuro Station ( ja, 池袋駅, ) is a major railway station located in the Ikebukuro district of Toshima, Tokyo, Japan, shared by the East Japan Railway Company (JR East), Tokyo subway operator Tokyo Metro, and the two private railway operators Seibu Railway and Tobu Railway. With 2.71 million passengers on an average daily in 2007, it is the second-busiest railway station in the world (after Shinjuku Station), and the busiest station in the Tobu, Seibu, and Tokyo Metro networks. It primarily serves commuters from Saitama Prefecture and other residential areas northwest of the city center. It is the Tokyo terminal of the Seibu Ikebukuro Line and the Tobu Tojo Line. Lines JR East Seibu Railway Seibu Ikebukuro Line (Ikebukuro to Agano) - limited through service to Seibu Chichibu Line Tobu Railway Tōbu Tōjō Line (Ikebukuro to Yorii) Tokyo Metro Station layout In Ikebukuro Station, there are two main entrances; the East exit and the West exit. There are a number o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Train Control System
The European Train Control System (ETCS) is the signalling and control component of the European Rail Traffic Management System (ERTMS). It is a replacement for legacy train protection systems and designed to replace the many incompatible safety systems currently used by European railways. The standard was also adopted outside Europe and is an option for worldwide application. In technical terms it is a type of positive train control (PTC). ETCS is implemented with standard trackside equipment and unified controlling equipment within the train cab. In its advanced form, all lineside information is passed to the driver wirelessly inside the cab, removing the need for lineside signals watched by the driver. This will give the foundation for a later to be defined automatic train operation. Trackside equipment aims to exchange information with the vehicle for safely supervising train circulation. The information exchanged between track and trains can be either continuous or int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cab Signalling
Cab signaling is a railway safety system that communicates track status and condition information to the cab, crew compartment or driver's compartment of a locomotive, railcar or multiple unit. The information is continually updated giving an easy to read display to the train driver or engine driver. The simplest systems display the trackside signal, while more sophisticated systems also display allowable speed, location of nearby trains, and dynamic information about the track ahead. Cab signals can also be part of a more comprehensive train protection system that can automatically apply the brakes stopping the train if the operator does not respond appropriately to a dangerous condition. Overview The main purpose of a signal system is to enforce a safe separation between trains and to stop or slow trains in advance of a restrictive situation. The cab signal system is an improvement over the wayside signal system, where visual signals beside or above the right-of-way gov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Axle Counter
An axle counter is a system used in railway signalling to detect the clear or occupied status of a section of track between two points. The system generally consists of a wheel sensor (one for each end of the section) and an evaluation unit for counting the axles of the train both into and out of the section. They are often used to replace a track circuit. Principles and operation An axle counter consists of the axle counter sensor, which detects the individual axles of a train either via either mechanical, electrical or even fibre optic methods, as well as an evaluator, which does the logic of the system and counts the axles into and out of the section. The evaluator may also convert the analogue signal of the axle counter sensor into a digital signal. However, in some cases there is a separate unit which performs this task. The system is set up by having an axle counter sensor installed at each end of a section. As each train axle passes the axle counter sensor at the start o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Track Circuit
A track circuit is an electrical device used to prove the absence of a train on rail tracks to signallers and control relevant signals. An alternative to track circuits are axle counters. Principles and operation The basic principle behind the track circuit lies in the connection of the two rails by the wheels and axle of locomotives and rolling stock to short an electrical circuit. This circuit is monitored by electrical equipment to detect the absence of the trains. Since this is a safety appliance, fail-safe operation is crucial. Hence the circuit is designed to indicate the presence of a train when failures occur. On the other hand, false occupancy readings are disruptive to railway operations and must be minimized. Track circuits allow railway signalling systems to operate semi-automatically, by displaying signals for trains to slow or stop in the presence of occupied track ahead of them. They help prevent Train dispatcher, dispatchers and Manual block, operators from ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reed–Solomon Error Correction
Reed–Solomon codes are a group of error-correcting codes that were introduced by Irving S. Reed and Gustave Solomon in 1960. They have many applications, the most prominent of which include consumer technologies such as MiniDiscs, CDs, DVDs, Blu-ray discs, QR codes, data transmission technologies such as DSL and WiMAX, broadcast systems such as satellite communications, DVB and ATSC, and storage systems such as RAID 6. Reed–Solomon codes operate on a block of data treated as a set of finite-field elements called symbols. Reed–Solomon codes are able to detect and correct multiple symbol errors. By adding = − check symbols to the data, a Reed–Solomon code can detect (but not correct) any combination of up to erroneous symbols, ''or'' locate and correct up to erroneous symbols at unknown locations. As an erasure code, it can correct up to erasures at locations that are known and provided to the algorithm, or it can detect and correct combinations of erro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single-line Working
On a railway Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a pre ..., single-line workingDriver's Rulebook: Module P1 - Sections 1 to 6 Single line working refers to the practice where, when one line out of the two lines is blocked, trains are able to use the other in either direction.Brainscape Flashcards: Single line working /ref> This is usually when a line is out of use for maintenanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Train Control
Automatic train control (ATC) is a general class of train protection systems for railways that involves a speed control mechanism in response to external inputs. For example, a system could effect an emergency brake application if the driver does not react to a signal at danger. ATC systems tend to integrate various cab signalling technologies and they use more granular deceleration patterns in lieu of the rigid stops encountered with the older automatic train stop (ATS) technology. ATC can also be used with automatic train operation (ATO) and is usually considered to be the safety-critical part of a railway system. Over time, there have been many different safety systems labelled as "automatic train control". The first experimental apparatus was installed on the Henley branch line in January 1906 by the Great Western Railway, although it would now be referred to as an automatic warning system (AWS) because the driver retained full command of braking. The term is especially co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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