1.
Unattended system monitoring trends in the water safety
The lake, rivers,
river is rich in water resources, hydraulic converted to water conservancy in
China since ancient times is one the country works. Such as the Three Gorges
Project, the south-to-north water diversion project, and so on, all reflect the
benign use of water resources. However, the safe operation and maintenance of
water conservancy facilities is a top priority. If late mismanagement, may lead
directly to the function of the water conservancy facilities reduced or even
lost, but to water safety management burden. With the continuous development of
the construction of water conservancy projects, new requirements for automated
operation and safety of the equipment and facilities of all kinds of water
conservancy facilities, and water conservancy facilities, coupled with the
rapid development of modern communications technology and video technology for
water conservancy construction digitized provide technically strong guarantee.
Therefore, the redesign to optimize water conservancy facilities, security
monitoring, remote video surveillance system and control through a variety of
communication technologies, construction of water conservancy industry room to
achieve unattended (less duty) is the overall trend of the development of water
conservancy and hydropower industry.
2.
Current water conservancy facilities monitoring the problem?
Water conservancy
facilities in the main arch dam, dam, dam, core rockfill dam, rockfill dam.Due
to the relatively large volume of dams, the cross-sectional width.The sluice
main river-based, as opposed to the dam as a whole is much smaller, basically a
dam, for example, the ear gate. Water monitoring system requires timely and
accurate information collection, information processing simple operation, easy
maintenance, and requires the system easy installation, stable operation, long
maintenance intervals. At present, there are several problems:
1) A large-scale water
conservancy facilities such as dams, the main control room located at both ends
of the dam, from a distance, inconvenient to communicate with each other,
problems cannot be timely detection and treatment, even if it is difficult to
arrange fixed personnel centralized monitoring and management. In addition,
some regional water monitoring points scattered and harsh natural environment,
in which case arrange for someone to manage not only the response lag and very
dangerous.
2) Traditional video
surveillance not only bandwidth usage, and cannot be achieved dam and Master
Control Room equipment safety management and alarm processing, single function,
it is difficult to meet the requirements of the dam needs of high security
alert, not to facilitate the monitoring and supervision of the superiors .
Moreover, the traditional monitoring program separately from the video
surveillance and dam safety monitoring, the formation of two independent subsystems,
so not only increases the complexity of the operation and improve the hardware
and software maintenance costs.
3) If more than one
control room monitoring system, maintenance costs are too high, video
surveillance, perimeter alarm and around the dam dynamic environment equipment,
not centralized monitoring and management.
4) Water conservancy
facilities of police intelligence, relying on the nearest duty officer to the
scene to solve or call professional and technical personnel, detailed video and
equipment monitoring information cannot be obtained for the first time, to
reduce the speed of the system, if the problem is serious The consequences
would be disastrous.
5) Follow the
traditional security work is not only a waste of a lot of human resources, and
the relatively long period of post-processing problems, the problem cannot be
traced back, it is difficult to quickly find the root of the problem, which is
not conducive to the information technology management.
3.
How to solve the problems in the current water monitoring?
Monitoring the status
quo for the water industry, combined with the actual situation of the customer
launch dam / sluice water unattended monitoring system, to meet the
above-mentioned problems.
The solution uses a combination of Shenzhen eTel
Technology Co., Ltd. FAM alarm controller and DVR video surveillance system,
the seamless integration of the data center Famer Cloud mesh platform
management software and DVR video monitoring center software, when an alarm is
generated, real-time display in Famer management platform, marked the location
on the map, show contact phone number, address, etc., the user can click
"Browse" to view live video, and support video record functions.
Through Famerdata
management platform, users can remotely manage ET8511/ET8611 all IO ports. The
ET8511 IP FAM using industrial-grade standard design with digital I/O input and
output, analog input interface and other functions, RS485, RS232, DI, AI, TE
interface, can be connected to a wired or wireless sensor connection, to
achieve Remote security alarm monitoring. ET8511 supports variety of sensors,
example: door sensor, infrared motion detectors, sound and light alarm, gas
detection, smoke detection. In the event of an invasion, the server will
automatically record the scene, call the appropriate camera, notification
sound, light duty officer. The central server has the ability to multitask
multiple places at the same time an alarm condition can also timely processing.
1) Safety monitoring system not only provides front-end
work area real-time video, and access control and dynamic environment equipment
alarm linkage turns on the light, alarm and send a text or multimedia message,
control dams and sluices switchgear operation. The alarm information is
uploaded to the network management center and network management sub-control,
remote guidance can also be carried out by the Centre or the operation
eliminate dangerous, do the accident in a timely manner.
2) the overall design of the software platform in
accordance with the two-tier or three-tier network architecture design, set up
a local monitoring system in the front-end operations, including dam sluice
equipment monitoring, monitoring of the dam sluice surrounding area, perimeter
alarm system, fire alarm systems, access control systems, lighting voice
control system, the dam sluice workspace dynamic environment monitoring.
Monitoring center through the monitoring center client software front-end
monitoring point for unified supervision including police intelligence
processing, data statement analysis, remote management.
3) front-end monitoring system by extending the RS232
standard industrial interfaces, the device communication protocol to increase
the variety of required monitoring equipment. Such as: for hydrological
monitoring instruments, for dam safety the seepage pressure gauge,
inclinometer, measuring joint meter and so on. So that users do not need to
increase computer equipment, and the use of a set of monitoring software also
greatly reduces the complexity of the operation.
4) By the front-end work area video surveillance,
real-time observation of the waters of various changes, engine room equipment
and culvert running for the leadership decision-making the intuitive image
information, at the same time can improve the observation, measurement staff
work environment to reduce staff, so that unattended, fewer people on duty, and
truly reflects modern management, intelligent operation. For example:
A. water level monitoring alarm and treatment measures,
to ensure the safety of the water level in reservoir storage water level
through the video surveillance;
B. sluices, pumping station and reservoir spillway using
real-time video surveillance, to avoid misuse, so that unattended;
C. use of video surveillance, analysis of river
hydrological conditions, monitoring the river downstream and cross-strait
situation and monitor the water quality of the river, to prevent pollution;
5) Forwarded through a proxy server software can greatly
reduce the bandwidth usage, the other is installed on the front-end monitoring
host the IE control software, leaders at all levels in various parts of the
world through the network using the IE browser view of the functioning of the
water conservancy facilities.
6) Via multicast voice intercom technology can make more
than one front and center for voice communication, by voice intercom function,
the center and technical personnel through video and intercom front-end staff
to provide technical guidance, greatly improving the efficiency of maintenance,
reduced maintenance costs.
4.
Unattended Water monitoring system advantages
The water application
characteristics of the industry is monitoring locations such as rivers,
reservoirs, gates scattered distribution, distance, this feature makes the
traditional analog TV monitoring system has been unable to meet the demand, at
the same time need to browse surveillance images of water conservancy
departments and relevant units and personnel more. How to effectively under the
conditions of existing bandwidth enables users to obtain a smooth, clear
surveillance video is the key to the success of the system design. "Water
conservancy unattended integrated monitoring system "is constantly sum up
years of practical application, through reasonable framework to effectively
solve the many problems of the water industry, well positioned to meet the
actual needs of water users.
All water conservancy
unattended monitoring system Remote communication using standard TCP / IP
protocol, which can be applied directly in the LAN or WAN, relatively far
distance for each lock station, not easy laying wire line, wireless spread
spectrum can also be used technology or the use of satellite communications to
solve the problem of long-distance communications. The software uses three-tier
network architecture is currently more popular, making the entire system
structure is clear, easy to manage and expand support agent system. In
addition, the system also supports network control and IE sub-control, which
makes the entire system can be subject to geographic restrictions and free
connection.
The whole system is
divided into four parts: the front unattended video server and video, dynamic
environment and access control section; agent forwarding server (optional);
Center network
control, unattended central server system; IE sub-control. Unattended video
server-based solutions is shown in Figure 2:
The system can be the key positions of all front-end dams
/ locks 24-hour video surveillance and video in different ways on different
front-end settings.
The system can be connected to a large
number of alarm devices, such as door sensor, infrared, smoke, flooding, once
an exception occurs, the system can automatically alarm, upload alarm
information and linkage to digital video or sound and light alarm.
In the system can be added to the access control
interface, seamless access to the access control system, in order to strengthen
the management of the dam / sluice out of the personnel. Enables managers to
see anywhere equipment and on-site staff, you can also dialogue with the
front-end staff, strengthen the management of interactive audio and video
surveillance. In the system can also be combined with a large number of
professional environmental monitoring equipment to achieve a timely manner to
reflect the data of the air-conditioning system, temperature and humidity, and
other support equipment. Alarm
Can the linkage complete video strategy can send MMS or
SMS notification duty or leadership and technical staff.
In addition, if you want to truly intelligent unattended
monitoring also need to increase the dam security elements and hydrological
monitoring system. Truly all aspects of integration, integration, intelligent
monitoring.
For the solution of the water level monitoring:
Hydrological monitoring the majority is to use
professional water level gauge used alone, computer via RS232 communicate with
the device, real-time data acquisition, software alarm parameters set by the
user accordingly. This approach has drawbacks, if the device is damaged or
subject to strong external interference is likely to cause distortion of data
and thus generate false positives. Moreover, the centers are just digital
information, the lack of sensory information. The World Albert unattended
system uses a combination of methods of video technology and measurement
equipment, in addition to using the water level measuring equipment, while
using more advanced video analysis technology, set up a separate water level
monitoring video channels, set the water level in the video window cordon If
the water level crossed the cordon generate an alarm signal, in this way, so
that the alarm information more intuitive and accurate monitoring center
through video analysis can be found in advance of police intelligence. This can
not only realize the police dealt with in a timely manner, can also be reached
early warning function. In conjunction with SMS or MMS alarm information in a
timely manner to convey to the relevant responsible person.
Against horizontal displacement of the dam, we use a
fixed displacement meter measured simultaneously using a video overlay
technology will coordinate axis is superimposed on the video image, the
displacement meter measuring points aligned videos coordinates of the center,
the central monitoring terminal by a video on displacement analysis, but The
dam displacement is very slow, so the need to combine the dual measurement of
measuring instruments. During the monitoring of the safety of the dam at the
same time, we also cannot ignore the video surveillance of the corridor,
because the corridor is the water seepage into the dam after the fight
diversion channel, if the corridor is too much water the dam seepage problem
serious to constitute a major threat to the safety of the dam. Dam / sluice
water conservancy unattended integrated monitoring system and its key
technologies to achieve a fully automated control and management of large dams,
sluices unattended, the custody of a few people ", provided the conditions
for the dam sluice downsizing to improve efficiency. When the system network
monitoring, data sharing, provides for the management of
Great conveniencewith the flood season approaching,
highly integrated, high stability, intelligent unattended monitoring system is
bound to play a crucial role in the actual work.