[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

Schiffbauer et al. - Google Patents

Through-the-earth and other types of communication systems for underground coal miners for disaster and normal operations

Schiffbauer et al.

View PDF
Document ID
14162617961300606981
Author
Schiffbauer W
Mowrey G
Brune J
Publication venue
National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention

External Links

Snippet

Background Recent tragic events and mine emergencies at the Alma, Sago, Quecreek and No. 5 mines have highlighted the need for reliable communications between the miners inside the mine and the outside. Present, wirebased communications systems may fail due …
Continue reading at corpora.tika.apache.org (PDF) (other versions)

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/016—Personal emergency signalling and security systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/009—Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATIONS NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATIONS NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchical pre-organized networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATIONS NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Similar Documents

Publication Publication Date Title
Bandyopadhyay et al. Wireless communication in underground mines
Yarkan et al. Underground mine communications: A survey
US8542114B2 (en) Cap-lamp and communications support system
US9356706B2 (en) First responder and mine emergency communication
AU620531B2 (en) Medium frequency mine communication system
US8115622B2 (en) Underground radio communications and personnel tracking system
Yenchek et al. NIOSH-sponsored research in through-the-earth communications for mines: a status report
US7688196B2 (en) Intrinsically safe communication and tracking system
WO2008034255A1 (en) Network for confined hazardous or other extreme environments
Patri et al. Wireless communication systems for underground mines–a critical appraisal
CN103982240B (en) The double integrated wireless communication system in a kind of mine personnel location
CN100540849C (en) A kind of personnel in the pit locatees rescue system and personnel in the pit's localization method
Barkand et al. Through-the-earth, two-way, mine emergency, voice communication systems
Ranjan et al. Wireless sensor networks: An emerging solution for underground mines
Ranjan et al. Communications challenges in underground mines
Novak et al. Postaccident mine communications and tracking systems
Schiffbauer et al. Through-the-earth and other types of communication systems for underground coal miners for disaster and normal operations
CN202707136U (en) Safety pre-warning and rescuing system for mine
CN101737081A (en) Underground emergency searching and rescuing wireless communication system for transmitting signals by utilizing rail
CN115835146A (en) Early warning information broadcasting method and system based on Beidou navigation signals
Ranjan et al. Advancements in communication and safety systems in underground mines: present status and future prospects
Mulenga et al. Mines Safety and Accident Communication System for underground mines
Conti et al. Evaluation of a signaling and warning system for underground mines
Stolarczyk A medium frequency wireless communication system for underground mines
Ngwenyama A critical investigation into missing persons in underground mines and related tracking technology