Mine accidents
always occurred at the high risk coal mining industry. There is 3 accidents
occurred in the recent month. The last news is that 5 people died by harmful
gas choking in Fodiangou coal mine of Pingyao coal company on July 7th.
At the back of every accident, hundreds and thousands families should bear the
infinity pain. How to avoid mine accident, how to maximize reducing the number
of casualties when mine accident happened? It is very important that establish
the scientific and compulsive safety management measure.
In order to
solve the rescue problem, accurate locate underground personnel, and reduce the
blind of mine accident rescue, the State Administration of work safety and the
National Coal Mine Safety Supervision Bureau issued the notification about
building 6 comprehensive coal mine safety systems to avoid risk, the
notification require that underground personnel system should be installed in
all the coal mine company before 2011. The extension of mine safety production
license, even the producing would be influenced if the coal mine company do not
follow the notification.
In the past
several years, only central enterprises and state-owned key coal mines have
installed the location system, it is just small number of thousands coal mines,
many middle and small coal mine company still not install this system. Also,
common underground location system use the radio frequency positioning method,
actual location effect area of this method is only between 200 to 300 meters.
And, The practical use of some key technical indicators of the old personnel
management system is not satisfactory. The missing, misstatement, lost, easily
influenced by environment, not very stable and so many defects exist in this
system, it should be instead by developed new product.
The miner’s lamp
which has the location function
The Great Aim
optical communication developing by the situation, creatively integrate the
visible information technology into common LED lighting, apply the digital
optical communication information technology into accurate underground
personnel positioning, to instead of the radio frequency positioning system.
The principle of new system is just like the replacement from analog cell phone
to digital cell phone, it is also the first in China.
The researching
of the underground personnel positional management system get substantial
progress now, it enter the industrial tunnel stage. It means that the
underground personnel management system would get the "Coal"
certification after a few months, so the market door could be opened.
As known, this
system composed by information tunnel lamp, information miner’s lamp, data
substation, wireless substation, optical ring network and data management
information system. The optical communication technology interact with
information miner’s lighting through the information data superposition of LED
information tunnel visible lighting, and collect the actual time data from
wireless substation through the wireless device which inside the miner’s lamp,
then organizing the data in the substation node, to pass the data to the
information analysis management system to monitor the situation of underground
personnel via the underground optical ring network.
Because the
system use information tunnel lamps which are installed inside the coal mine as
the coordinate, so the accuracy of positioning could be huge increased, it
could be 10 meters. The system have many incomparable advantages at
reliability, environmental adaptability, real-time performance, accuracy of
underground personnel positioning and large capacity data storage parts. The
capacity of the card number is 65535, and the data can be stored for more than
two years.
As known, this
system can help the common LED lamp upgrade to information lamp, huge enhancing
the technical content of traditional lamp in terms of keep the cost. In other
hand, for customer uses, it integrates the underground lighting system with
underground personnel management system, reduce the cost and difficulty to set
the underground personnel management system solely, the total cost could be
reduced by more than 25%.
The products of
visible light communication underground personnel positioning management system
have many obvious advantages than others in the accuracy of positioning,
anti-interference ability, reliability and cost control parts. According to
forecast, there is several billions RMB demand in the domestic potential
market, and count in the demand of other mines and oversea market, the
underground personnel positioning system which integrated with mine’s lighting
products has a sweet future.
Mine accident is
a evil! Coal mine safeguarding system is a large and comprehensive system,
optical communication underground personnel positioning system is the nervus
centralis of the whole safeguarding system, it can accurately reflects the move
track, access time of every underground personnel, and can forecasts the
potential dangers in actual time, it is very convenient for technical staffs to
manage and design the rescue plan when the accident happened. Let’s struggling
together for the never disappeared world!