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Electric vehicle position detection system

A technology for detection systems and electric vehicles, applied in radio wave measurement systems, electric vehicles, control drives, etc., can solve the problems of unknown trains and narrow reading range of preferred tags, and achieve low-cost effects

Active Publication Date: 2018-02-16
KK TOSHIBA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the ID of the tag can be read in a large range, it becomes unclear where the train is located within the large range
Therefore, when the train is running at a low speed, it is preferable that the ID of the tag can be read in a narrow range

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0021] figure 1 It is a figure which shows an example of the structure of the electric vehicle position detection system of 1st Embodiment. The electric vehicle position detection system according to the first embodiment includes a plurality of first tags T1, a plurality of second tags T2, and readers 11, 12 (refer to figure 2 ) and database 13 (see figure 2 ). The plurality of first tags T1 are tags having the same configuration as each other. The plurality of second labels are labels having the same configuration as each other. On the other hand, the first tag T1 and the second tag T2 have mutually different structures.

[0022] The first and second tags T1 and T2 are, for example, RFID tags, and may be either active tags or passive tags. However, when system costs, installation costs, and the like are considered, the first and second tags T1 and T2 are preferably passive tags that do not require a power source.

[0023] The plurality of first tags T1 are installed a...

no. 2 Embodiment approach

[0050] Figure 4 It is a figure which shows an example of the structure of the electric vehicle position detection system of 2nd Embodiment. In 2nd Embodiment, the installation interval DST2 of 2nd tag T2 is wider than this installation interval in 1st Embodiment. For example, the installation interval DST2 of the 2nd tag T2 is about 1 meter. Other configurations of the second embodiment may be the same as the corresponding configurations of the first embodiment.

[0051] By setting the installation interval DST2 of the second label T2 wider, as Figure 4 As shown, the ID readable ranges of the two adjacent second tags T2 are separated from each other. Therefore, a space region SP is generated between the ID readable ranges of the adjacent two second tags T2 between the two adjacent first tags T1. The space area SP is a range in which the ID of the second tag T2 cannot be read between two adjacent first tags T1.

[0052] The readers 11 and 12 cannot read the ID of the sec...

no. 3 Embodiment approach

[0055] Figure 5 It is a figure which shows an example of the structure of the electric vehicle position detection system of 3rd Embodiment. The electric vehicle position detection system of the third embodiment further includes a plurality of third tags T3 installed along the track 1 in the station ST and having mutually different IDs.

[0056] The third tag T3 is, for example, an RFID tag, and may be either an active tag or a passive tag. However, in consideration of system costs, installation costs, etc., it is preferable that the third tag T3 is also a passive tag that does not require a power source, like the first and second tags T1 and T2.

[0057] The plurality of third tags T3 are installed along the line 1 and have mutually different identifiers. That is, each of the plurality of third tags T3 has a unique identifier, and the tag can be identified by reading the identifier.

[0058] The third tag T3 has a third range D3 as an ID readable range. The third range D3...

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Abstract

The electric vehicle position detection system according to an embodiment is provided with multiple first tags, multiple second tags, and readers. The multiple first tags are disposed along a railwaytrack and have different identifiers from one another. The multiple second tags are disposed along the railway track and have different identifiers from one another. The readers are installed in an electric train traveling on the railway track and are capable of reading the identifiers of the multiple first tags and the identifiers of the multiple second tags. The multiple first tags have a firstrange as a range within which the readers can read the identifiers. The multiple second tags have a second range, which is different from the first range, as a range within which the readers can readthe identifiers. The interval at which the multiple first tags are disposed is different from the interval at which the multiple second tags are disposed.

Description

technical field [0001] Embodiments of the present invention relate to a position detection system for an electric vehicle. Background technique [0002] In order to make the train run and stop safely, the automatic train stop device (ATS (Automatic Train Stop)), the automatic train control device (ATC (Automatic Train Control)), the automatic driving device (ATO (Automatic Train Operation)), the positioning Stop device (TASC (Train Automatic Stop-position Controller)), train control system (CBTC (Communication Based Train Control)) and other safety guarantee devices or driving assistance devices. These safety guarantee devices or driving assistance devices require a device for specifying the position of the train, such as a transponder or a track circuit. However, transponders and track circuits have problems in that equipment costs and installation costs are high. In addition, when a GPS (Global Positioning System) is used to determine the position of a train, the reachab...

Claims

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Application Information

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IPC IPC(8): B61L25/02B60L15/40G01S13/72G01S13/74
CPCB60L15/40B61L25/02G01S13/72G01S13/74
Inventor 关口孝公出口典孝平野龙马桧垣诚
Owner KK TOSHIBA
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