GB1362836A - Radio mobile station detecting system - Google Patents

Radio mobile station detecting system

Info

Publication number
GB1362836A
GB1362836A GB4541771A GB4541771A GB1362836A GB 1362836 A GB1362836 A GB 1362836A GB 4541771 A GB4541771 A GB 4541771A GB 4541771 A GB4541771 A GB 4541771A GB 1362836 A GB1362836 A GB 1362836A
Authority
GB
United Kingdom
Prior art keywords
station
relay
stations
receiving
relay station
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.)
Expired
Application number
GB4541771A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1362836A publication Critical patent/GB1362836A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
    • G08G1/127—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams to a central station ; Indicators in a central station

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Traffic Control Systems (AREA)

Abstract

1362836 Radio signalling MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 29 Sept 1971 [2 Oct 1970] 45417/71 Heading H4L In a system for receiving signals from mobile radio stations, such as motor vehicles, a number of fixed receiving stations are provided which are distributed at known positions within the service area, and which are divided into groups each associated with a respective relay station. Each receiving station has an individual transmission line to its relay station, and each relay station has an individual transmission line to a central station. The lines from each relay station to the associated receiving stations are successively scanned, and the output from each relay station is processed in the central station. As described, a message from a motor vehicle comprises an identification number and such information as whether or not it has a passenger. A feature is, that the message may be sent at a repetition frequency which is proportional to the speed of the vehicle (Fig. 1, not shown). At a relay station the lines from its receiving stations are successively scanned by a circuit 11, Fig. 4, controlled from the central station by a synchronizing signal and by clock pulses which correspond in number to the greatest number of receiving stations coupled to a relay station, and which have a period at least equal to the time required for a mobile station signal to be received at the central station. The transmission lines from the relay stations are connected at the central station to the inputs of respective demodulators 21 to 24, Fig. 5, which provide outputs to a central processing section 15. This reads out and stores the information from the mobile station signals and operates peripheral circuitry, which may comprise printing means, so that, for example, it it known which receiving station is in contact with which mobile station at a particulr time. The processing section 15 also sends out, on a line "e", the synchronizing and scanning control signals to the relay stations.
GB4541771A 1970-10-02 1971-09-29 Radio mobile station detecting system Expired GB1362836A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45086839A JPS5024041B1 (en) 1970-10-02 1970-10-02

Publications (1)

Publication Number Publication Date
GB1362836A true GB1362836A (en) 1974-08-07

Family

ID=13897966

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4541771A Expired GB1362836A (en) 1970-10-02 1971-09-29 Radio mobile station detecting system

Country Status (4)

Country Link
JP (1) JPS5024041B1 (en)
CA (1) CA930807A (en)
DE (1) DE2149215C3 (en)
GB (1) GB1362836A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263044A (en) * 1992-01-03 1993-07-07 Nexus Engineering Corp Wireless telephone system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52143736A (en) * 1976-05-26 1977-11-30 Harada Ind Co Ltd Vehicle antenna
JPS5317246A (en) * 1976-07-31 1978-02-17 Harada Ind Co Ltd Vehicle antenna
DE19923409B4 (en) 1999-05-21 2004-10-07 Siemens Ag Method and device for determining the location of a transmitter in space

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263044A (en) * 1992-01-03 1993-07-07 Nexus Engineering Corp Wireless telephone system

Also Published As

Publication number Publication date
DE2149215A1 (en) 1972-04-20
CA930807A (en) 1973-07-24
DE2149215C3 (en) 1978-11-30
JPS5024041B1 (en) 1975-08-13
DE2149215B2 (en) 1978-04-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee