Scientifically carry out autumn prevention and control of malignant weeds

Solidago canadensis is a foreign malignant weed that seriously threatens agricultural production and ecological environment. According to recent surveys, Canada's goldenrod has entered the flowering period, which is a crucial period for prevention and control. Timely control can effectively cut off the spread of seeds and reduce the number of bases in the coming year. All localities should, in accordance with the principle of territorial management, strengthen organizational coordination and technical guidance, promptly carry out the prevention and control actions of the yellow flowers in the fall, and strive to achieve the overall goal of non-proliferation in sporadic areas and non-proliferation in the film-forming areas. The relevant matters are hereby notified as follows:

1 Strengthen comprehensive inspections and implement prevention and control responsibilities

Recently, phytosanitary institutions at all levels should promptly organize a comprehensive inspection of technical personnel, focusing on investigating abandoned land or areas to be developed, along rivers and lakes, along highways and railways, and existing occurrences and surrounding areas, in time to grasp the occurrence of Canadian goldenrod in the area under their jurisdiction. In the case, clearly identify the area and area, identify and map the distribution. It is necessary to timely report the occurrence of distribution to relevant departments and units and implement the responsibility for prevention and control.

2 Strengthen comprehensive prevention and control, improve the control effect

All localities should rush to carry out scientific prevention and control according to local conditions for different types of occurrence areas before the ripening of the goldenrod seeds in Canada. For sporadic plants, manual extraction should be carried out and the underground rhizomes should be completely removed. For arable land that occurs in pieces, mechanical ploughing and re-cultivation should be carried out, and the residual stems and stems should be removed in time, and appropriate crops or greening should be planted. Plants, in order to improve the control effect and land utilization; for the occurrence of non-cultivated land along the river along the river, along the road along the railway and other non-cultivated land, canola can be sprayed with glyphosate or oxyfluorine glyphosate and other agents. All localities should vigorously organize prevention and control professional teams and implement unified prevention and control. Areas with conditions can carry out specialized prevention and control through the government's purchase of services, and improve the efficiency of prevention and control operations.

3 Strengthen organizational coordination and promote prevention and control as a whole

The control of canadensis in Canada is a quarantine measure carried out in accordance with the law and is highly concerned by the society. According to the principle of “grading responsibility and territorial management”, agricultural departments at all levels should take the initiative to report the epidemic situation to the local government and organize administrative control; to report and publish publicity materials through the news media to improve the society's correct understanding of Canadian goldenrod And to prevent confidence; it is necessary to strengthen coordination with transportation, water conservancy, urban construction, railways, development zones, etc.; it is necessary to strengthen inspections and guidance, timely report the epidemic eradication progress, and urge the areas where the operations are not effective to prevent them within a time limit.

More pesticide knowledge , please pay attention to China Pesticide Network

(Source: Pesticide Newsletter)

Since the 21st century, as the network technology develops, there is more and more demand for the storage of video data via the network. And then the monitoring system has further developed into an NVR (Network Video Recorder) system with network functions, from the DVR (Digital Video Recorder) system.

The Network Video Recorder, also called the NVR/ Network Video Recorder NVR/ NVR in CCTV / NVR CCTV System / NVR Recorder, is the storage and forwarding part of the network video surveillance system. The Network Video Recorder, without the analog-to-digital conversion and encoding functions, works with the video encoders(DVS) or the Network Cameras(IPC) to realize the video recording, storage and forwarding functions. 

Let's see the specific software functions of the Network Video Recorder:

1. The user interface layout
The NVR software interface (GUI) is a human-computer interaction window. All the functions of the system, such as these operations of the channel parameter setting, the start and stop recording, the video browsing, the video playback, the video export, the PTZ control, and so on, are completed through this user interface.

The user interface layouts of different NVR manufacturers may vary greatly, but the main functions are similar. Generally speaking, the human-machine interface should have the reasonable layout, the applicable functions, and the simple operation, so as to conform to the user's operating habits.

2. The video browsing function
Generally speaking, all the video and audio channels in the system (including the channels under other NVRs) can be added to and displayed on the NVR software platform. A clear structured channel resource directory tree can be formed on the GUI to directly perform the on-site video browsing operations, with no need to firstly log in and connect different NVRs to load different NVRs first. There are two ways to browse the on-site video. One way is to directly drag the corresponding channel on the left to the target window display area, and the other way is to select the display window first, and then enter the shortcut key of the channel on the keyboard and press Enter. 

3. The recording and storage function
The recording and storage function supports the video recording, storage, and backup.

4. The playback and export function
(1) The multiple playback modes
The video playback has a variety of modes, including the playback in time periods, fast playback of the alarm videos, and reverse playback at any time, and so on. During the playback, the user can play the video frame by frame, and also can add markers to the playback clips, so that he/she can find the corresponding clip he/she need easily when he/she needs in the future. Besides, various operations such as the normal playback, accelerated playback, slow-down playback, pause, and stop, can be performed during playback.  
(2) The video export
(3) The multi-channel playback
If some on-site incidents occur, in order to fully know the situation of the surrounding scenes at that monitoring point, sometimes it is necessary to synchronize the playback of the videos from multiple channels, which will facilitate the panoramic display of the entire process of the event.

5. The incident investigation

6. The user authority management

7. The user operation log

8. The equipment management

In conclusion, the Network Video Recorder technology has been widely promoted and applied to the fields of urban security storage, national security and other engineering projects, because of its own advantages in many aspects. And the Network Video Recorder technology is bound to become the mainstream technology in the field of urban security high-definition video surveillance because of the driving of the market, technology, and so on. Undoubtly, the Network Video Recorder technology has very strong prospects for the theoretical research and practical application.  

Network Video Recorder

Network Video Recorder, NVR, Network Video Recorder NVR, NVR in CCTV, NVR CCTV System, NVR Recorder

SHENZHEN SANAN TECHNOLOGY CO.,LTD , https://www.sanan-cctv.com