CA1311527C - Systeme d'alarme-incendie electromagnetique pour mine souterraine - Google Patents
Systeme d'alarme-incendie electromagnetique pour mine souterraineInfo
- Publication number
- CA1311527C CA1311527C CA000579775A CA579775A CA1311527C CA 1311527 C CA1311527 C CA 1311527C CA 000579775 A CA000579775 A CA 000579775A CA 579775 A CA579775 A CA 579775A CA 1311527 C CA1311527 C CA 1311527C
- Authority
- CA
- Canada
- Prior art keywords
- warning system
- mine
- signal
- ultra
- antenna
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20123588A | 1988-05-02 | 1988-05-02 | |
US201,235 | 1988-05-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1311527C true CA1311527C (fr) | 1992-12-15 |
Family
ID=22745035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000579775A Expired - Fee Related CA1311527C (fr) | 1988-05-02 | 1988-10-11 | Systeme d'alarme-incendie electromagnetique pour mine souterraine |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU618088B2 (fr) |
CA (1) | CA1311527C (fr) |
GB (1) | GB2220823A (fr) |
ZA (1) | ZA893125B (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2254528A (en) * | 1991-03-19 | 1992-10-07 | Axl Systems Ltd | Miners lamp communicator |
PE20080595A1 (es) | 2006-04-28 | 2008-05-17 | Orica Explosives Tech Pty Ltd | Metodos para controlar componentes de aparatos de tronadura, aparatos de tronadura y componentes de los mismos |
US7796943B2 (en) | 2007-03-28 | 2010-09-14 | Lockheed Martin Corporation | Sub-surface communications system and method |
US8232888B2 (en) | 2007-10-25 | 2012-07-31 | Strata Proximity Systems, Llc | Interactive magnetic marker field for safety systems and complex proximity warning system |
US7903041B2 (en) | 2008-05-01 | 2011-03-08 | Lockheed Martin Corporation | Magnetic antenna apparatus and method for generating a magnetic field |
CN113745732B (zh) * | 2021-09-02 | 2023-05-30 | 深圳市德昶科技有限公司 | 一种基于内置天线应用于矿井的定位装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1257299A (fr) * | 1969-04-25 | 1971-12-15 | ||
US3740488A (en) * | 1971-01-13 | 1973-06-19 | Westinghouse Electric Corp | Inductive loop through-the-earth communication system |
-
1988
- 1988-10-11 CA CA000579775A patent/CA1311527C/fr not_active Expired - Fee Related
-
1989
- 1989-04-27 ZA ZA893125A patent/ZA893125B/xx unknown
- 1989-04-28 GB GB8909870A patent/GB2220823A/en not_active Withdrawn
- 1989-05-01 AU AU33884/89A patent/AU618088B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
AU3388489A (en) | 1989-11-02 |
ZA893125B (en) | 1990-02-28 |
GB2220823A (en) | 1990-01-17 |
AU618088B2 (en) | 1991-12-12 |
GB8909870D0 (en) | 1989-06-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7420471B2 (en) | Safety system for mining equipment | |
AU620531B2 (en) | Medium frequency mine communication system | |
Murphy et al. | Underground mine communications | |
US8542114B2 (en) | Cap-lamp and communications support system | |
US5093929A (en) | Medium frequency mine communication system | |
US9356706B2 (en) | First responder and mine emergency communication | |
US20050104737A1 (en) | Safety system | |
CA1311527C (fr) | Systeme d'alarme-incendie electromagnetique pour mine souterraine | |
GB2091462A (en) | A staff-location and signalling system for use in mines | |
CN101063410A (zh) | 矿井安全预警与救援信息系统 | |
Barkand et al. | Through-the-earth, two-way, mine emergency, voice communication systems | |
Stolarczyk | Emergency and operational low and medium frequency band radio communications system for underground mines | |
WO1997027645A1 (fr) | Systeme de communication electromagnetique basse frequence et son antenne | |
Conti et al. | Evaluation of a signaling and warning system for underground mines | |
Hjelmstad et al. | Ultra low frequency electromagnetic fire alarm system for underground mines | |
RU2112146C1 (ru) | Устройство беспроводной аварийно-вызывной и информационно-технологической шахтной сигнализации и связи | |
RU99825U1 (ru) | Система тревожного оповещения | |
RU57829U1 (ru) | Система оперативного шахтного оповещания | |
RU175083U1 (ru) | Светильник шахтный головной с информационно-измерительными функциями безопасности | |
CN2392310Y (zh) | 无线应急信号收发检测仪 | |
Murphy et al. | Underground Mine Communications: Reprinted from Proceedings of the IEEE | |
RU32196U1 (ru) | Устройство беспроводной подземной аварийной сигнализации и контроля объемной доли метана в атмосфере горных выработок | |
Phillips et al. | Development of active guidance systems to overcome problems of disorientation and low visibility following severe explosions. | |
Hjelmstad et al. | One-Way Fire Warning Alarm System For Underground Mines | |
WOODHALL | Centralized wireless remote blasting |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKLA | Lapsed |