> One, GPRS network outline
GPRS is at present solves the mobile communication
information service one kind of more perfect service, it is costs, the
cover scope widely by the data current capacity, the data transmission
speed is quicker. GPRS promoting, has provided the
infrastructure platform for the profession and the enterprise user
development wireless work, has created the advantage for the impetus
migration work application and the development. Compares with
the wired network, the GPRS network has rents the expense to be low,
the motion work, not merit and so on region restriction. The
GPRS appearance has provided one kind of new choice for the enterprise
and the profession user development wireless work.
Second, system function characteristic
1. systems have used the advanced wireless/wired data
communication technology. Transmission mode by GPRS wireless
data terminal transmission mode primarily, union telephone line, IP
wide band net, GPRS male net transmission mode, network nimble
convenient, the transmission speed is quick. Uses passes on the
way without the line number to gather a source of pollution the data
time to be smaller than for 5 seconds, truly achieves on-line
real-time gathering.
2. systems use the area/county, the city, the province, the
national four levels of networkings structure, place all levels of
passable software and the national networking, also the passable this
system software directly with the national networking, and may store
the data the national information center data warehouse.
3. system softwares and overseeing department work in close
integration with, not only may automatically move takes the
installment to have the on-line transmission system unit's data, but
also has the artificial input contact surface, facilitates massively
has not temporarily installed the on-line equipment unit's source of
pollution material input (for example by inspection station manual
survey data), software may automatically to these data analysis
computations, obtain data report form and the diagram of curves and so
on Japan report form, month report form.
4. system softwares use B/S (Browse/Server) the pattern, various
workstations do not need to carry on any disposition, through the
environmental protection bureau's computer local area network, various
departments may use the browser conveniently to transfer and to input
various departments correlation the information, its needs the report
form, the curve data may the direct printout, moreover this system
provides the integrity the work flow, carries on the on-line work.
If you travel on official business to the outside areas or in
the home, you also may use the licensing key to carry on the
long-distance access, truly achieves for 24 hours 随时随地 to
understand this department the work dynamic and the on-line monitor
data.
5. this system data storage way and traditional difference.
Before the environmental protection system mainly is uses the
flight recorder front end the enterprise the stored datum, this was
creates (early time by the then system non- timeliness to read through
environmental protection bureau man-power takes or adjusts fetching
through telephone line according to cycle all very long front end,
will create data to have to save a longer time in front end) like this
to create the equipment construction cost higher, also the data
disperser saved front end the massive enterprises, once the flight
recorder suffered the destruction then was easy to create the data
missing. This system because selects the GPRS/CDMA wireless data
terminal quick velocity modulation number method, front end may not
need to install the flight recorder and the adapter, various types
sensor may directly connect the terminal (already to install flight
recorder enterprise, may retain flight recorder and intelligent
terminal is connected), like this front end the overall construction
cost reduced also simplified the link, enhanced the system
reliability. But data because real-time gathers in the
environmental protection bureau central computer database to preserve,
safe reliable, also the transfer is convenient. This system
software may retrieve as necessary assigns out many enterprises 10
minutes curves, but selects the telephone digit dialing method only to
be able connects some enterprise when the telephone to be able to
demonstrate, usually only can demonstrate Japan the curve.
6. this system highly automates, but nobody value defends, the
source of pollution exceeds the allowed figure discharges may
auto-alarm and the printing.
7. this system may demonstrate the test point pollutant 10
minute, the date, the month, the year and so on discharges the curve,
and may if the dirt control the facility movement state diagram union
to carry on in the same time interval the situation comparison, may
make the enterprise or the similar monitor data history same time
compares (longitudinal comparison), the similar enterprise same time
interval comparison (crosswise comparison) and so on, and may produce
each kind of report form (including crosswise, longitudinal
comparative data and receivable \ solid charge data computation) and
the printing.
8. this system software and the environmental protection bureau
office automation unifies, may gradually realize does not have the
paper work.
9. this system remains has with the mist and dust blackness
supervisory system data connection, passable mist and dust blackness,
the mist and dust have discharged the total quantity/to discharge the
density, to process the facility running status to enterprise's mist
and dust and so on variously to carry on the automatic generalized
analysis.
10. systems use the modular design nimbly, the combination are
convenient.
Third, system technology parameter
1. Uses front end the GPRS wireless data terminal
transmission the sampling time: <= 3 seconds (add when relaying
<= 5 seconds)
2. Uses the GPRS wireless data terminal automatic
sampling: Is separated 10 minutes (to be possible freely to
establish)
3. The free hypothesis exceeds the allowed figure
reports to the police;
4. But is artificial/automatically makes up records the
data, the automatic logarithm according to carries on the analysis,
produces each kind of graph;
5. Disposes GIS software, auxiliary decision-making;
6. The central database may automatically produce the
backup;
7. GPRS/CDMA wireless data terminal: May directly connect
various types sensor, may connect various factories production the
flight recorder, may monitor the dirt to control the equipment running
status, may meet each kind of COD, TOC and so on the on-line
instrumentation equipment.
Fourth, system module
1. Data acquisition module - GPRS/CDMA wireless
data terminal;
2.GIS geographic information system module
3. Monitoring control center administration
module
4. Data input module
5. News issue module
6. Data browsing analysis module
Fifth, the suggestion selects equipment showing
A, front end
(1) the GPRS wireless data terminal uses Xiamen blue Si
to correspond LZ713C GPRS DTU which the limited company provides,
installs in the enterprise 监控?equipment. May meet two
measuring appliances which other companies produces, may directly
connect the sewage, the mist and dust monitor sensor, may monitor the
dirt to control the facility running status.
(2) the smoke (powder) the dust discharges the on-line monitor
to use in to the smoke (powder) the dust source of pollution
discharges the total quantity/to discharge the density real-time
on-line monitor, installs on smoke, each smoke road installs.
(3) the ultrasonic wave 明渠 current capacity detector uses in
to the sewage current capacity survey, installs in the sewage 明渠
center.
B, center
(1) the central standard version (network version)
software contains the wireless data acquisition, the GIS inquiry
localization indication (constructs storehouse information input to be
an exception), brings the WEB browsing function, the data graph, the
manual input, reserves the mist and dust blackness system connection,
may to blackness value production graph analysis, but and national
bureau networking. Moreover may increase the ethernet data
conversion terminal, the charge management application module, office
management application module and so on.
(2) other software and hardware correlation computer equipment
and platform software and so on equipment server, computer, printer.
Sixth, function and diagram
1st, data transmission aspect comparison GPRS wireless data terminal original telephone
line on-line transmission system
The data transmission way by passes on without the line
number primarily, but the compatible telephone line, GSM, the wide
band net and so on the many kinds of transmission mode only supports
the telephone line transmission mode
The data acquisition speed the data acquisition speed <=
5 seconds which stands to enterprise each end, every 10 minutes carry
on a wheel to the complete enterprise to inquire, truly achieves high
speed on-line gathering the data acquisition speed which stands to
enterprise each end equally approximately to need 5 minutes
The system uses to the exterior dependence without the
line number passes on the special net for the main transmission
method, uses the ultra strong error correction technology, the error
rate extremely low, the data reliable, is fast, exterior factor
restriction dependence telephone line, easily is not restricted the
telecommunication enterprise
System exterior influence when system plan, carries on
the electrical measurement to the scene, may avoid the outside the
radio jamming. The telephone channel breakdown is easy to create
the system paralysis
The system failure once breaks down from the diagnosis
system, but fast diagnosis and rapidly removes system failure not to
be easy to judge, also if for telephone channel breakdown, but also
must solve through the telecommunication department
The system resources the possibility which embezzles
because is the special net, does not exist the situation telephone
which robs hits is easily hit by the enterprise staff robber, affects
the network normal correspondence, also the increase correspondence
expense, creates the correspondence expense not to be easy to
control
System operating cost forever on-line, according to the
current capacity charge, the operating cost is inexpensive. Each
enterprise carries the station to have to install a telephone, the
environmental protection bureau center also must install certain
telephones (at the beginning of telephone attire to spend
approximately 310 Yuan /, base this month rents for 18 Yuan// months,
telephone communication working cost certain). The operating
cost is higher.
2nd, central software aspect comparison
Central software pattern original telephone line on-line
transmission system
The central software pattern uses B/S (browser) the
pattern, the convenient data sharing use mainly is the single plane
version, data sharing is not convenient
The software compatibility may the data which gathers
give the on-line software analysis or brings back the data the
analysis to be ordinary
The networking performance system uses the area/county,
the city, the province, the national four levels of networkings
structure all levels of, the place may with the national networking,
and may store the data the national information center data warehouse
system to use the area/county, the city, the province, the national
four levels of networkings structure, the place all levels of may and
the national networking
But operationally acts according to the different
administrative offices to carry on the contact surface design, truly
satisfies the different administrative offices the service need, the
operation simple work contact surface in the same place, not truly
achieves according to the service needs to design the contact surface,
operates not easily
The GIS geographic information system disposes GIS
geographic information system software, but conveniently searches
(man-power on the electronic map or is automatic) the source of
pollution information, moreover facilitates the next expansion
overseeing vehicle GPS dispatch control system at present non- GIS
software
The real-time analysis function can carry on the
immediate gathering analysis to all ends station data only to be able
to the end station which corresponds to carry on the immediate
gathering analysis
The long-distance work, the visit functional system
provides the integrity the work flow, carries on the on-line work.
May achieve for 24 hours 随时随地 to understand this
department the work dynamic and the on-line monitor data. Does
not have this function
The data storage way data real-time memory in the
environmental protection bureau center server database, and may make
the backup, the data security high, the easy to operate data main
memory carries in the enterprise stands, the memory disperses, is easy
to lose, the use is inconvenient
But extended software remains has with the mist and dust
blackness supervisory system data connection, to enterprise's mist and
dust pollution passable mist and dust blackness, the mist and dust has
discharged the density/to discharge the total quantity, to remove dust
the facility running status and so on variously to carry on the
automatic generalized analysis not to have this function
The automaticity may achieve nobody value to defend,
data automatic gathering, exceeds the allowed figure reports to the
police must some person of values defend, not exceeds the allowed
figure reports to the police the function
In the software design key software design not only
considered the data transmission timeliness and the security,
considered the data the use, how namely does use the data which
gathers for the environmental protection work to serve much considered
the telephone line transmission, has neglected the system use
efficiency
3rd, the enterprise carries the station aspect the
comparison The GPRS/CDMA wireless data terminal at present
uses some end stations
The end station composes the RS232 connection, but
nimbly combines Meets the ultrasonic wave detector is the
sewage flowmeter; Meets Australia to produce the EMS6 monitor is
the smoke (powder) the dust on-line monitor meter; Meets the
pollution to process the facility also is an equipment running status
monitor meter; Meets the original each kind of on-line monitor
measuring appliance to be equal to the flight recorder and the
adapter. Generally by the sensor, two measuring appliances, the
flight recorder, the adapter and so on is composed
The equipment reliability has replaced two measuring
appliances, the flight recorder, the adapter by an equipment and so on
the multitudinous equipment, reduced a breakdown equipment
multitudinously, is easy to crash
The maintainable equipment is a factory product,
maintains the convenience fast many factories product, the system once
appears the breakdown, between the factory is easy to wrangle
The data reliability data real-time transmits the
environmental protection bureau, the main memory in the central
server, the data security is reliable, front end the enterprise the
equipment retained recently 15 day-long data data storage in
enterprise's flight recorder, once the flight recorder damage, the
business data will lose, but the flight recorder compared the server
to appear the breakdown the probability to have to be much higher
The data easy to operate data real-time memory in the
center, the transfer convenience data disperser saves in the front end
flight recorder, transfers is not extremely convenient
Contact person: Xu Liang
Telephone: 0592-5799652
Handset: 13.696955108 billion
Mail:xl1940asd@126.com
QQ: 178.357208 million
MSN: Xl1940asd@126.com
Company website: Www.xmlenz.com
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