Splice Screen Scheme of Environmental Monitoring Center

From the access mode of six types of business data and quality control status, spatial correlation of pollution traceability, time and space alignment of multi-source data, to the linkage of pollution discharge permit and law enforcement, data stop prompt and drill acceptance, the landing judgment of the splicing screen of the environmental protection monitoring center is given.

The most expensive mistake in the splicing screen plan of the environmental protection monitoring center is not that the screen is expensive to buy, but that "the environmental protection plan is written as a replica of the flood prevention plan".The core of flood control is "whether the water level rises or not, whether to transfer", and the core of environmental protection is "where pollution comes from, how to trace the source if it exceeds the standard, and how to close the law enforcement". The screen wall layout, data access and early warning linkage logic of the two are completely different. The environmental protection monitoring center faces three hard constraints that flood control does not have:Monitoring data with quality control status(Unreviewed/reviewed/invalid), the original data displayed on the large screen may be inconsistent with the final reported data;Different refresh frequencies for multi-source data(Air quality by hour, water environment by 4 hours, pollution source online monitoring by hour or real-time), the time axis is easy to dislocation when displaying on the same screen;Pollution Traceability Needs Spatial Correlation-Pollution source emission data, monitoring station data and meteorological wind direction data must be superimposed and analyzed on GIS. Cutting off the wind direction line or pollution source connection will directly affect the traceability judgment. QunmaoLCD splicing screen China source manufacturersThe value of direct supply in environmental protection projects lies precisely in the cross-screen patchwork combination of GIS, non-standard supports and long-term spare parts-the monitoring center has a long service life, and the same type of panel will be found after five years. This article is carried out in the order of "six types of data → access mode → traceability layout → screen wall backstepping → space-time alignment → law enforcement linkage → data aging → drill acceptance". Each link gives the judgment of "under what conditions to establish and under what conditions to exclude.

1. six types of business data: first distinguish between "monitoring data" and "business picture"

The display content of the environmental monitoring center can be divided into two categories according to the nature of the data:Monitoring data(on-line monitoring of air quality, water environment, pollution sources) andBusiness screen(GIS a map, video surveillance, early warning scheduling, law enforcement information). The access mode, refresh frequency and quality control logic of the two types of data are completely different.

2. Pollution Traceability: The Core Business of Environmental Protection Different from Flood Control

The core business process of the environmental monitoring center is not "looking at the data", but "tracing the source of pollution"-when a monitoring station exceeds the standard, the dispatcher needs to answer: where does the pollution come from? Is it the local pollution source emission or the upstream transmission? What are the wind direction and diffusion conditions? What are the surrounding pollutant companies? What is the historical law enforcement record?

3. screen wall reverser: calculate the number of rows and columns from the net size of the monitoring center and the traceability line of sight.

The screen wall scale of the environmental protection monitoring center is jointly determined by the wall conditions of the monitoring center, the seat layout and the window requirements of the traceability partition.

Taking a 55-inch single screen (approximately 1222mm × 696 mm) as an example. A municipal environmental protection monitoring center can use a clear wall width of about 5.5 meters, a clear height of about 2.8 meters, 50cm reserved at the bottom, 30cm reserved on both sides, and 20cm reserved at the top: the available width is about 4.9 meters, 4.9 ÷ 1.222 ≈ 4.0, take4 columns; Available height is about 2.1 meters, 2.1 ÷ 0.696 ≈ 3.0, take3 lines. The candidate set consists of 4 rows and 3 columns, totaling 12 blocks. If the GIS traceability area needs to display the river basin or urban map across 2 columns × 2 rows, 12 screens can be satisfied. If the monitoring center is smaller (e.g. 4 meters wide), it may only be able to make a total of 6 3 × 2 blocks, and the "trend control area" needs to be compressed into round rounds or auxiliary screens.

County-level monitoring centers are usually smaller, 2 × 2 or 3 × 2; provincial or regional monitoring centers may be larger, requiring more than 4 × 4, and considering multi-site convergence and consultation zoning. The number of screens is not determined by "budget" or "momentum", but by the window demand of the traceability partition and the agent's line of sight.

4. GIS cross-screen and patchwork: the most sensitive technical matching for pollution traceability scenarios

A GIS map is the core of environmental traceability and the most sensitive content of patchwork. The monitoring stations, pollution source points, wind direction diffusion range and administrative boundaries on the map are all continuous lines or densely marked. Cutting off by patchwork will directly affect the traceability judgment.

Temporal and Spatial Alignment of 5. Multi-source Data: Technical Difficulties of Environmental Protection Different from Ordinary Monitoring

The environmental protection monitoring center has many data sources and different refresh frequencies, and "time dislocation" is most likely to occur when displaying on the same screen: air quality data is 1 hour ago, water environment data is 4 hours ago, pollution source online monitoring is real-time, and video is real-time. If the dispatcher does not pay attention to the timestamp, he may judge the data of different periods as the state at the same time.

6. emission permits and law enforcement linkage: a closed-loop unique to environmental protection

The early warning of the environmental protection monitoring center is not "the end of the window", but to form a closed loop of "over-standard alarm → obtaining pollution discharge permit → checking historical law enforcement → linking surrounding videos → notifying law enforcement. This closed loop determines the design of the early warning linkage module.

In this closed loop, the role of the big screen is "presentation and auxiliary scheduling", not "law enforcement system itself". Pollution discharge permit information, law enforcement records and law enforcement task generation are all functions of the business system. The large screen is responsible for quickly bringing up this information when it exceeds the standard and comparing it with the screen.The plan should specify "which information is provided by which system, what the large screen is responsible for presenting, and who configures the linkage rules"To avoid integrators being asked to promise that "large screens can automatically enforce the law".

7. data aging and stop more tips: environmental monitoring of the "false real-time" risk.

The "false real-time" risk of environmental monitoring data is more hidden than flood prevention: the air quality data itself is updated by the hour. If the large screen does not display the time stamp, the dispatcher may think that he is seeing the air quality at "this moment"; If the online monitoring of pollution sources stops, the over-standard alarm may be delayed or omitted.

8. budget trade-offs and source manufacturer value

The budget of environmental protection projects is usually limited, and the order of choice is recommended:First, the seam and readability of GIS traceability area are guaranteed (the core of traceability is map overlay), then the timestamp and stop prompt of multi-source data are guaranteed, then the video and law enforcement linkage are guaranteed, and finally the conference and auxiliary screen configuration are guaranteed. Don't sacrifice the size of the main research area for the patchwork upgrade of the auxiliary screen-the traceability map can be seen clearly, which is more important than the appearance of the auxiliary screen.

9. drill acceptance: complete the whole system with one pollution traceability process

The acceptance of the environmental protection monitoring center cannot only test "power on and light up, and the signal can go up the wall". Should be designed once.Pollution Traceability Exercise, run the complete process of "over-standard alarm → GIS positioning → pollution source verification → weather control → law enforcement review → consultation and dispatch → recovery.

10. common mistakes

• Myth 1: The environmental protection plan is written as a replica of the flood control plan. The core of flood control is water level and transfer, and the core of environmental protection is pollution traceability and law enforcement closed loop. The screen wall layout, data access and linkage logic are different, and templates cannot be set.
• Misunderstanding 2: GIS only looks at the number of millimeters of patchwork across the screen, and does not do interruption inspection. If the 0.88mm patchwork seam is cut off from the traceability line or the wind direction arrow, the impact may be greater than 3.5mm and fall in the blank area. Acceptance should be measured whether the key content is cut off.
• Misunderstanding 3: "Access through the platform" as an access scheme. The data level, audit status, refresh frequency, linkage rules and responsible parties must be specified item by item, otherwise they will pass the buck to each other during joint adjustment.
• Misconception 4: Ignoring temporal misalignment among multiple data sources. Air quality by hour, water environment by 4 hours, pollution sources in real time, the same screen is not equal to synchronization. Each data window should display a time stamp, and there should be a prompt when stopping.
• Myth five: the "big screen" as a "law enforcement system". The large screen is responsible for presenting and assisting scheduling. Emission permit information, law enforcement records and task generation belong to the business system. The boundary should be clearly written to prevent integrators from being asked to promise that "large screens can automatically enforce the law".
• Misunderstanding six: spare parts are not reserved. The service life of the splicing wall of the monitoring center is long, and the same model panel is required for the replacement unit after five years. The source manufacturer's spare parts guarantee is more reliable than the trader.

XI. FAQ

XII. Conclusion