JPS55109040A - Position detection of mobile subject and imformation signal transmitter - Google Patents

Position detection of mobile subject and imformation signal transmitter

Info

Publication number
JPS55109040A
JPS55109040A JP1578179A JP1578179A JPS55109040A JP S55109040 A JPS55109040 A JP S55109040A JP 1578179 A JP1578179 A JP 1578179A JP 1578179 A JP1578179 A JP 1578179A JP S55109040 A JPS55109040 A JP S55109040A
Authority
JP
Japan
Prior art keywords
lines
position detection
signal
current
featuring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1578179A
Other languages
Japanese (ja)
Other versions
JPS6057776B2 (en
Inventor
Takao Kiogawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kokusai Electric Corp
Original Assignee
Kokusai Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kokusai Electric Corp filed Critical Kokusai Electric Corp
Priority to JP54015781A priority Critical patent/JPS6057776B2/en
Publication of JPS55109040A publication Critical patent/JPS55109040A/en
Publication of JPS6057776B2 publication Critical patent/JPS6057776B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

PURPOSE:To secure the continuous transmission of the information signal from the running car as well as realize the position detection of the mobile subject on the running path via the signal featuring the same frequency as the above information signal. CONSTITUTION:Information signal Di transmitted to the ground station from the mobile subject is applied to cross loop antenna coil 6 and loop antenna coil 7 via encoder 10, modulator 9 and transmitter 8 each. The induction lines 1, 2 and 3 on the ground are provided so that the crossing may be secured between lines 1 and 3 at the boundaries among sections A, B and C. In induction lines 1, 2 and 3, cross loop 6 induces the current featuring the phase difference as shown by the solid lines, and cross loop 7 induces the current featuring the phase difference as shown by the broken lines. And the current shown by the broken lines is supplied to the signal amplifier and amplitude limiter 15 via transformer 4, and the current shown by the solid lines is supplied to amplitude limiter 14 and receiver 11 via transformer 5. Information Do is obtained out of the output of receiver 11 and via demodulator 12 and decoder 13 each; and position detection signal Dp is obtained from the output of limiters 14 and 15 and via phase discriminator 16 and square wave converter 17 each.
JP54015781A 1979-02-14 1979-02-14 Mobile object position detection and information signal transmission equipment Expired JPS6057776B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54015781A JPS6057776B2 (en) 1979-02-14 1979-02-14 Mobile object position detection and information signal transmission equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54015781A JPS6057776B2 (en) 1979-02-14 1979-02-14 Mobile object position detection and information signal transmission equipment

Publications (2)

Publication Number Publication Date
JPS55109040A true JPS55109040A (en) 1980-08-21
JPS6057776B2 JPS6057776B2 (en) 1985-12-17

Family

ID=11898350

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54015781A Expired JPS6057776B2 (en) 1979-02-14 1979-02-14 Mobile object position detection and information signal transmission equipment

Country Status (1)

Country Link
JP (1) JPS6057776B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ297348B6 (en) * 2003-11-12 2006-11-15 Azd Praha S. R. O. Device for safe identification of track section freedom and running-trough of train

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ297348B6 (en) * 2003-11-12 2006-11-15 Azd Praha S. R. O. Device for safe identification of track section freedom and running-trough of train

Also Published As

Publication number Publication date
JPS6057776B2 (en) 1985-12-17

Similar Documents

Publication Publication Date Title
EP0215266A3 (en) System including tuned ac magnetic field transmit antenna and untuned ac magnetic field receive antenna
GB1534379A (en) Communications system
GB1382257A (en) Communication system
EP0144245A3 (en) Transmitter/receiver system
JPS55109040A (en) Position detection of mobile subject and imformation signal transmitter
GB1074722A (en) Frequency-diversity radio communication system
MY107588A (en) Apparatus for and methods transmitting a signal responsive to a received signal
FR2416190A1 (en) Transport trolley control system - has transmitter and a receiver on each trolley with signal amplitude detector including three variable gain amplifier stages
JPS5589762A (en) Searching method of failure point on overhead distribution line
GB503907A (en)
JPS5672548A (en) Space diversity receiving system
JPS5616332A (en) Inductive radio communication device
SE9202126D0 (en) PROCEDURE AND DEVICE FOR RADIO COMMUNICATION WITH BAND SPREADING TECHNOLOGY
JPS55118240A (en) Information signal transmission unit
JPS5537936A (en) Object discrimination device
JPS55654A (en) Transmitting/receiving device
JPS57186842A (en) Demodulator of frequency-modulated receiver
JPS5548665A (en) Direction detecting method for sound source
GB1103623A (en) A wireless personal call system
JPS5260518A (en) Television system for voice communication
JPS5372414A (en) Inductive radio coupler system
JPS5579540A (en) Fsk radio unit
SU1594430A2 (en) Apparatus for measuring speed of mobile object
JPS52136504A (en) Information reception system for moving object
JPS57202198A (en) Portable stereo audio equipment