GB1165051A - Watchman Location System. - Google Patents

Watchman Location System.

Info

Publication number
GB1165051A
GB1165051A GB25199/67A GB2519967A GB1165051A GB 1165051 A GB1165051 A GB 1165051A GB 25199/67 A GB25199/67 A GB 25199/67A GB 2519967 A GB2519967 A GB 2519967A GB 1165051 A GB1165051 A GB 1165051A
Authority
GB
United Kingdom
Prior art keywords
frequency
transmitter
watchman
location
carrier
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
GB25199/67A
Inventor
John Raymond Ashley
Colin Grahame Douglas
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.)
Horstmann Gear Co Ltd
Original Assignee
Horstmann Gear 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 Horstmann Gear Co Ltd filed Critical Horstmann Gear Co Ltd
Priority to GB25199/67A priority Critical patent/GB1165051A/en
Priority to US733693A priority patent/US3573620A/en
Publication of GB1165051A publication Critical patent/GB1165051A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
    • G07C1/20—Checking timed patrols, e.g. of watchman

Abstract

1,165,051. Watchman-location system. HORSTMANN GEAR CO. Ltd. 6 March, 1968 [31 May, 1967], No. 25199/67. Heading G4T. A watchman-location system comprises a mobile radio transmitter having a loop aerial to detect a carrier frequency from a number of generators located at individual check-points, each generator modulating its signal with a characteristic location frequency, and having a demodulator which passes a detected location frequency to a carrier-wave continuously transmitted by the transmitter, a remote receiver tuned to the carrier-wave and having filters corresponding to each location frequency which operate a respective relay to light a lamp on receipt of the appropriate frequency. An illuminated lamp remains alight until another relay is operated. The transmitter may be a V.H.F. transmitter.
GB25199/67A 1967-05-31 1967-05-31 Watchman Location System. Expired GB1165051A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB25199/67A GB1165051A (en) 1967-05-31 1967-05-31 Watchman Location System.
US733693A US3573620A (en) 1967-05-31 1968-05-31 Security system with inductive to rf communications links

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25199/67A GB1165051A (en) 1967-05-31 1967-05-31 Watchman Location System.

Publications (1)

Publication Number Publication Date
GB1165051A true GB1165051A (en) 1969-09-24

Family

ID=10223838

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25199/67A Expired GB1165051A (en) 1967-05-31 1967-05-31 Watchman Location System.

Country Status (2)

Country Link
US (1) US3573620A (en)
GB (1) GB1165051A (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990067A (en) * 1974-09-30 1976-11-02 Sentry Technology Incorporated Electronic security tour system
US4206318A (en) * 1978-06-19 1980-06-03 Gai-Tronics Corporation Intraplant communication system
US4296408A (en) * 1980-04-14 1981-10-20 Portronix Communications Inc. Location transmitting system
US4990025A (en) * 1989-05-03 1991-02-05 Soil Stabilization Inc. Soil stabilizing method and apparatus
US5572192A (en) * 1994-03-17 1996-11-05 Detection Systems, Inc. Personal security system with guard tour features
US6459704B1 (en) 1997-08-12 2002-10-01 Spectrum Tracking Systems, Inc. Method and system for radio-location determination
US20150170521A1 (en) 2001-09-11 2015-06-18 Zonar Systems, Inc. System and method to enhance the utility of vehicle inspection records by including route identification data in each vehicle inspection record
US6671646B2 (en) * 2001-09-11 2003-12-30 Zonar Compliance Systems, Llc System and process to ensure performance of mandated safety and maintenance inspections
US20110068954A1 (en) 2006-06-20 2011-03-24 Zonar Systems, Inc. Method and apparatus to collect object identification data during operation of a vehicle and analysis of such data
US11341853B2 (en) 2001-09-11 2022-05-24 Zonar Systems, Inc. System and method to enhance the utility of vehicle inspection records by including route identification data in each vehicle inspection record
US8972179B2 (en) * 2006-06-20 2015-03-03 Brett Brinton Method and apparatus to analyze GPS data to determine if a vehicle has adhered to a predetermined route
US8400296B2 (en) 2001-09-11 2013-03-19 Zonar Systems, Inc. Method and apparatus to automate data collection during a mandatory inspection
US7557696B2 (en) * 2001-09-11 2009-07-07 Zonar Systems, Inc. System and process to record inspection compliance data
US9230437B2 (en) 2006-06-20 2016-01-05 Zonar Systems, Inc. Method and apparatus to encode fuel use data with GPS data and to analyze such data
US10056008B1 (en) 2006-06-20 2018-08-21 Zonar Systems, Inc. Using telematics data including position data and vehicle analytics to train drivers to improve efficiency of vehicle use
US10600096B2 (en) 2010-11-30 2020-03-24 Zonar Systems, Inc. System and method for obtaining competitive pricing for vehicle services
US10665040B2 (en) 2010-08-27 2020-05-26 Zonar Systems, Inc. Method and apparatus for remote vehicle diagnosis
US8914184B2 (en) 2012-04-01 2014-12-16 Zonar Systems, Inc. Method and apparatus for matching vehicle ECU programming to current vehicle operating conditions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323063A (en) * 1964-08-07 1967-05-30 Theodore Granik System for re-diffusion of received radio signals
US3478344A (en) * 1965-06-21 1969-11-11 Ralph K Schwitzgebel Behavioral supervision system with wrist carried transceiver
US3439320A (en) * 1967-09-21 1969-04-15 Relton Corp Personnel location system

Also Published As

Publication number Publication date
US3573620A (en) 1971-04-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee