Position identification card for downhole personnel in coal mine and card reading mode

Position identification card for downhole personnel in coal mine and card reading mode

The invention relates to a position identification card for downhole personnel in a coal mine and a card reading mode. A central processor is arranged in an identification card and connected with a low-frequency receiving and transmitting module, a high- frequency receiving and transmitting module a...

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1. Verfasser: SONG FUQUN
Format: Patent
Sprache:chi ; eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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creator SONG FUQUN
description The invention relates to a position identification card for downhole personnel in a coal mine and a card reading mode. A central processor is arranged in an identification card and connected with a low-frequency receiving and transmitting module, a high- frequency receiving and transmitting module and a power supply module. The card reading mode comprises the following steps: a plurality of mine substations established downhole cover the card reading area through low-frequency signals, the identification card keeps watch the commands of the mine substations through the low-frequency module; when the identification card enters the coverage area, communication with the mine substations is established and the card number is sent to the mine substations, the mine substations perform verification and storage processing and send a card disabling command to the identification card, and the identification card automatically enters the next round of watchkeeping after 30 seconds after disabling. The identification car
format Patent
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A central processor is arranged in an identification card and connected with a low-frequency receiving and transmitting module, a high- frequency receiving and transmitting module and a power supply module. The card reading mode comprises the following steps: a plurality of mine substations established downhole cover the card reading area through low-frequency signals, the identification card keeps watch the commands of the mine substations through the low-frequency module; when the identification card enters the coverage area, communication with the mine substations is established and the card number is sent to the mine substations, the mine substations perform verification and storage processing and send a card disabling command to the identification card, and the identification card automatically enters the next round of watchkeeping after 30 seconds after disabling. The identification car</abstract><oa>free_for_read</oa></addata></record>
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language chi ; eng
recordid cdi_epo_espacenet_CN101751596BB
source esp@cenet
subjects CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
title Position identification card for downhole personnel in coal mine and card reading mode
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