A. <br> <br> industry background With the continuous development of China's power utilities, power system automation has improved continuously, substation, high voltage transmission lines, etc. must realize few people or unattended, in order to improve production efficiency. How to combine remote monitoring, remote control, anti-theft, fire-fighting and alarm networking systems, and monitoring wireless organically to achieve remote monitoring, remote control, and image transmission based on wireless and wired networks, as well as common networked alarm networks The function, and reasonable input costs, can more effectively ensure the stable operation of the system and raise the safety precaution technology to a new level. Network, wireless, and remote monitoring are the main directions for the current monitoring industry.

The remote monitoring system can monitor and record the safety of substations, as well as the power equipment and operation conditions. The timely detection and handling of accidents will help improve the safety and reliability of power system automation. The safety precautions of high-voltage transmission lines have become an important part of safety production automation. The high-voltage transmission line safety protection system can not only remotely inspect the operating conditions of various types of equipment and personnel's operation records, but also can obtain alarms from the accident scene in real time. Information, timely processing and preservation of the anomalous phenomena that may have occurred, and the preservation of the site's image data, provide first-hand information for analyzing the cause of the accident, so that the management methods and means of the power supply department are continuously linked with the latest achievements in the development of science and technology. At the same time remote monitoring system can also integrate environmental monitoring (ambient temperature and humidity, smoke alarm, flood alarm), alarm linkage and other functions.

2. Demand analysis 1. Routine monitoring of transmission lines (1) Environment around transmission line Dangerous lines are widely distributed, the situation in the affected areas is complex, and many areas span kilometers of railways, high mountains, rivers, forests, densely populated areas, and construction sites. To select some dangerous spots, video surveillance equipment needs to be installed to monitor the surrounding environment, which can greatly reduce the inspection workload of the operating personnel and timely detect unsafe conditions such as excessive tree growth and crane activity at the construction site. Correcting it in time can prevent many external forces from destroying the accident.

(2) Anti-traffic theft Due to the wide range of roads, multiple points, long lines, and exposed fields of the transmission lines, most of the towers are made of metal components, making them stealing targets. It is believed that the intentional destruction of tower and tower facilities such as thefts of cable, ladders, hoops and connection hardware has become a factor affecting the safe operation of the power grid. It is necessary to provide remote alarms for the ongoing damage and deterrence through sound and light alarms on the tower site to play a deterrent effect, and use video surveillance videos and captured pictures for investigation and analysis.

(3) The result of the ice-covering of the anti-circuit ice-covered circuit will lead to a drastic drop in the mechanical and electrical performance of the transmission line, resulting in a line accident. The ice coverage of the line needs to be monitored. The line personnel can monitor the ice coverage process of the line through the video surveillance to know the formation and development of the line ice coating in real time. For light icing, remove by increasing the current. For severe ice lining, operating personnel can record the ice coating development process in real time, provide strong evidence for solving the ice coating on the line, and can monitor and instruct the ice melting of the line in real time through the video monitoring system.

(4) Line lead dancing and wind deflection monitoring The characteristics of the shedding of the transmission line lead are that after splitting the lead, the factors affecting each other are increasingly larger. Need to detect the status of the wire dancing, real-time recording the actual situation of wire dancing, real-time detection of the wire wind angle, observe the wire swing.

2. Daily Inspection Power line inspection is a basic work to effectively ensure the safety of electrical equipment, improve the reliability of electrical equipment, and ensure the minimum failure rate of electrical equipment. At present, the domestic practice of manual patrolling and manual paper media recording is widely adopted in the country. This method has many deficiencies such as many human factors, high management costs, inability to supervise the work of patrol officers, low degree of patrol informatization, and poor real-time performance.

In view of the current situation of power equipment and circuit inspections, the use of wireless single soldier video capture terminals can be very helpful in solving many problems in the inspection work, so that the power equipment maintenance department can implement electronic inspection and informationization in inspection work. , Intelligent, while allowing equipment and power equipment management departments to effectively monitor the work of inspectors, in order to maximize the efficiency of the work to ensure that the power equipment and transmission lines with low failure rate and safe operation.

3. Safety production operations The on-site operation site includes substation projects and transmission line repairs. The substation project involves many construction units and supervision units. The personnel are complex and management is difficult. In the project construction, due to the duplication of the work level of each construction unit, it is inevitable that it will result in repeated construction, material waste, and engineering rework.

The biggest difficulty in implementing video surveillance on the job site is that due to the impact of the on-site environment, it is often impossible to use traditional surveillance transmission methods to transmit video signals back to the monitoring center. The use of wireless transmission technology is undoubtedly a reliable solution to the problem of monitoring the transmission of video signals at construction sites.

The safety production management of electric power companies is related to the issues of national energy security, reliability, sustainable economic development, and people’s daily living. At present, although the electric power companies have achieved some good results in safety work, there is still a certain gap between them and the development requirements of the power grid. There are still many problems in the safety production management. In order to achieve new breakthroughs in safety production management in the new situation, we must keep pace with the times, update our concepts, raise awareness, and explore new ideas.

Some common problems in site management of safety production operations:

(1) Security awareness is not strong (2) Grassroots management is not in place (3) Customary violations (4) Poor operation and management (5) Safety rules and regulations are not actually implemented (6) Safety tools and equipment management is chaotic To solve the above series In order to solve this problem, we must increase safety control over hazardous locations and key links, and work on power cuts, live work, construction of nearby live equipment, special span construction, construction of deep foundation pits, installation of main equipment, and complex three-dimensional cross-operations. Large-scale hoisting operations and other high-risk operations, all-round audio and video surveillance, real-time video transmission to the control center, so that on-site violations, or the main security measures, leadership and management personnel are not in place and other aspects The role of a safety supervision, at the same time, violations can be immediately violated and other measures.

4. Functional requirements Integrated system In order to promote power supply security and improve management efficiency, the requirements are as follows:

(1) Centralized monitoring All live images are sent to the center in real time to realize the “television” function.

(2) Unexpected alarm For the monitoring of transmission lines, when the abnormal situation, the alarm; for power inspection, found illegal activities, take the initiative to a key alarm, protect property safety.

(3) Emergency command When overhauling the equipment, the remote center can understand the repair process in real time and guide the complex operation process.

(4) Classification management The monitoring center can be divided into multiple levels and multiple points. The same group of information can be sent to different departments and can be managed collaboratively.

(5) Complete information The video surveillance system can transmit a variety of environmental information at the same time, including real-time information such as ambient temperature, humidity, voltage value, and current amount.

(6) Process recording All equipment work processes, maintenance and repair processes can be maintained periodically or periodically to facilitate post-supervision and failure analysis.

(7) Easy to operate The system is easy to operate and easy to install. A single screen can perform all important operations.

III. Overall system design

1. Design Principles and Basis In order to ensure the smooth implementation of the integrated monitoring system in the power industry, Shenzhen Science and Technology has formulated a detailed wireless centralized monitoring program. This program will meet the various monitoring needs of the power sector.

1.1. Design Principles of the Plan This plan follows the principles of advanced technology, complete functions, stable performance, and cost-saving. Comprehensive consideration will be given to the factors of construction and maintenance operations, and there will be room for expansion for future development, expansion, reconstruction, and movement. Has the following principles:

(1) Advancedness and Applicability The system adopts pure digital signal transmission method, adopts H.264 coding technology in combination with 4G wireless modulation technology, reflects the latest development level of current computer control technology and computer network technology, and meets the requirements of the development of the times.

At the same time, the system is used for various management levels. The comprehensive management platform Cremedia 7.2 can provide users with a comfortable, safe, convenient, and quick platform experience. The operation is easy to learn.

(2) Economy and convenience Taking into full account the actual needs of users and the development trend of information technology, according to the needs of the law enforcement environment, designing and selecting functions and suitable for the situation on the spot, using 3G/4G/wireless network transmission solutions without large-scale wiring, Solve the project cost. The installation and debugging of the wireless transmission of the front-end equipment is convenient and quick, and the back-end platform is easy to set up, and a user-friendly and plug-and-play function is realized for the user.

(3) Reliability and safety The design of the system fully takes into account the rigor of the safety inspection, and it is highly reliable. After a system failure or accident is interrupted, it can ensure the accuracy, completeness, and consistency of the data. The rapid recovery function, while the system has a complete set of system management strategies, can ensure the system's operational safety.

(4) Openness is based on existing mature products. It also takes into consideration the status quo of the surrounding information communication environment and the development trend of technology. It has RJ-45 network communication port/RS232/RS485 communication interface and can realize remote head control.

(5) Expandability System design takes into account the need for future development and use of technology, with the potential to update, extend, and upgrade. And in accordance with the actual requirements of the project in the future to expand the system functions, at the same time, this program leaves redundancy in the design to meet the future development requirements.

2 Overall system network diagram

Shenfang Technology - Power 4G HD application overall network diagram.Jpg

The overall networking of the system is shown in the figure. The front-end application has three scenarios:

(1) Transmission line monitoring: low-power wireless video server + camera + protection box + solar power supply (2) daily inspection monitoring: Android handheld soldier + external camera; 4G cloth control + Bluetooth headset + local control panel; HD Car DVR + Roof PTZ Camera + 3D Rocker + Display (3) Job Site Monitoring: Android Suitcase Emergency Command Terminal, 4G HD cloth ball.

The entire system can be deployed in a hierarchical manner. The monitoring and management platform server system is deployed in the general monitoring center and is connected to the monitoring and dispatching center through the intranet. The audio and video data collected by the front end is forwarded to the monitoring and dispatching center via the intranet on the server platform, and decoded on the wall display at the monitoring center. Other monitoring rooms are also connected to the server platform through the Internet to enable real-time video sharing.

For mobile users of the external network, after authentication and authorization, they can also access the large-scale system through the operator's VPN network, and the corresponding video can be retrieved, so that the management personnel and leaders can watch the real-time situation on the spot anytime and anywhere.

3. Transmission line on-line monitoring subsystem 3.1. Overall composition Overview The transmission line online monitoring subsystem consists of wireless video surveillance, environmental monitoring, security precautions, and solar power supply. The monitoring site consists of front-end acquisition equipment (pan/tilt camera, protective cover, bracket), data acquisition and processing unit, core equipment wireless video server, and solar power supply system. The collection and upload of video and audio, digital compression, wireless transmission, local storage and power environment monitoring data, including: power interruption, equipment operation conditions, operating environment such as temperature, humidity, flooding, smoke and other monitoring needs signal of.

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Features:

Supports intelligent video analysis, changing "passive monitoring" to "active monitoring."

Smart linkage with other subsystems, call presets, start alarm recording.

3.2. Other components Ø Wireless video surveillance uses a 3G/4G wireless network + Internet connection method to send image data, environment data, and industrial data collected by the wireless video server to the monitoring center. The wireless video surveillance subsystem is the foundation of the transmission line on-line monitoring system. It is mainly responsible for all-weather monitoring of important electrical equipment, installation locations and perimeter environments, and meets the requirements of the monitoring center for operation and management.

Ø Environment monitoring The environmental quantity information of transmission lines is related to the safe operation of the equipment. According to the actual needs of the transmission line, temperature and humidity sensors, wind speed sensors, and environmental monitoring equipment such as the head of the water-soaking substation station system can be configured. Wireless products RS232/RS485 serial port to achieve centralized data upload.

Ø Security detectors Each detector of the security subsystem is directly connected to the deep serial alarm serial port through the alarm cable. When an alarm occurs, the alarm information can be uploaded to the central management platform in time, and related devices can be linked, such as sound and light alarms. Device.

Ø Solar power supply consists of solar panels, batteries (groups) and charge and discharge controllers. The controller is responsible for the charge and discharge management of the batteries. The entire system is used to power the data acquisition and processing units, front-end sensors, and cameras.

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4. Daily inspection monitoring subsystem inspection system relies on wireless video acquisition terminal, GPS positioning system, multimedia information return system and 3G/4G wireless broadband technology, which can effectively carry out inspection command, inspection data upload, fault line video The work of uploading pictures, etc. has enhanced the wide-ranging, stability, reliability, and controllability of inspection work, improved the quality of inspection work, effectively reduced the accident rate, and improved the work efficiency of the power sector.

At the same time, in order to meet the requirements of the State Grid Corporation of China for vehicle management under the new situation, the State Grid Corporation has further promoted the "two transformations", strengthened the management of "four modernizations," promoted the construction of the unified vehicle management platform of the State Grid Corporation of China, and comprehensively raised the company's corporate power. The lean management level of vehicles and production vehicles. Comprehensive support for the company's vehicle intensive, standardized and standardized management.

4.1. Composition Overview

Shenzhen Science and Technology - Power 4G HD application composition overview.

The daily inspection subsystem provides video acquisition and map positioning and navigation, inspection route guidance, real-time location reporting, photo uploading, receiving and processing tasks, instant messaging between terminals, and communication between terminals and platforms. There are many choices for the monitoring subsystem's monitoring front end. The inspection engineering personnel can hold an Android smart soldier, built-in camera, and an external camera.

For on-vehicle monitoring of inspection vehicles, there are two ways to build:

(1) Stationary vehicle monitoring: It is composed of high-definition vehicle DVR + roof pan/tilt camera + 3D joystick + display screen, which is suitable for long-term inspection and repair of professional vehicles.

(2) Detachable vehicle-mounted monitoring and control: Place the roof with 4G cloth ball to complete high-definition video capture and encoding transmission. At the same time, there is wireless Bluetooth headset real-time and background intercom, the local control panel realizes the video display of the ball control and PTZ control. . The whole set of equipment is wireless, which is very suitable for the construction of vehicles with temporary deployment and emergency control.

4.2. Stationary vehicle monitoring

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The front-end components include vehicle-mounted integrated cameras, hemisphere analog cameras, wireless HD car video recorders, intercom microphones, and LCD displays.

High-definition car DVR products can realize 4-channel analog video input, and can also realize 1-channel 1080P high-definition video input, storage, transmission, through this machine can complete wireless audio and video services, law enforcement personnel business inquiries, mobile office, mobile involved Information audio and video acquisition and storage, personnel positioning and other functions. It is applicable to many occasions such as law enforcement, traffic management, public security patrols, judicial escort and so on.

The PTZ camera is installed on the top of the vehicle. The three-dimensional joystick can control the rotation and the lens zooming in and out. The car DVR external GPS antenna can obtain the real-time position of the vehicle and support Beidou positioning. The LCD display can display the real-time video locally. The car hand microphone also implements intercom function.

4.3. Dispatching Vehicle Monitoring

Shenzhen Science and Technology Co., Ltd.

4G cloth control ball equipped with high-definition integrated movement, the output video is clear and natural, 20x optical zoom lens to meet different application needs; independent infrared light group ensures that the camera can clearly shoot objects within 60 meters under the full black environment; movement The key part adopts all-aluminum body design, strong weatherability, and easy to deal with any harsh use of the environment; using a new drive system, PTZ positioning accuracy is significantly higher than traditional PTZ, while having a large holding torque, not because The vibration of the camera causes the pan tilt to shift; the novel vacuum magnetic composite sucker enables the camera to be firmly adsorbed on the smooth metal surface; equipped with a carrying case for easy carrying; equipped with a tripod chassis, is extremely easy to install and fix; the device is equipped with a Bluetooth headset; The constraints of the line; can use the tablet, mobile phone, etc. to directly watch the video and operate the PTZ through WIFI; these features of the camera make it an ideal choice for various emergency mobile video surveillance.

4.4. Inspection applications (1) The inspection personnel search and locate nearby peers through the terminal, and communicate quickly and collaboratively through voice and SMS.

(2) The inspection personnel pass the information of the power facilities through the inspection terminal information return system to the command center in the form of pictures or videos to provide the command center with the most timely and detailed first-line information.

(3) Inspection observation: The front image sent back by the inspection personnel can make the command center effectively understand the situation of the power facilities. The engineer can reasonably perform remote operation guidance to the frontline inspection personnel and improve the scientific nature of the inspection work.

(4) Video conference: The conference will be used; monitor the job site, and monitor the operation specification of the operator above the tower from the ground.

(5) Emergency inspection of patrol emergency When the patroller discovers that there is an emergency situation in the power equipment, the emergency alarm button on the hand-held terminal can be triggered to alert the command center through voice calls. When the command center receives an alarm from the inspector, it quickly sets the position of the alarm prompt point. According to the GIS map, the command center inquires the positions of the inspectors and vehicles near the alarm area, arranges the nearest inspection personnel, and repairs the equipment to achieve the nearest reinforcement.

5. Job Site Monitoring Subsystem The construction of a video surveillance system at the construction site can solve various situations encountered in the project site and effectively improve the management efficiency and effectiveness. The use of information technology to improve the existing management level is conducive to grasping the first-hand construction of each project site, comprehensively and systematically understanding the progress of the project, material and equipment, and other information, and timely discovering and resolving new problems that appear in the project construction. The situation and new issues provide first-hand information for provincial and municipal companies to facilitate timely and accurate decision-making by the leaders, ensure the smooth implementation of substation construction and repair projects for transmission lines, and realize modern management modes.

5.1. Composition Overview

Shenzhen Science and Technology - Power 4G HD Application Composition Overview 5.1.jpg

At the job site, due to its temporary nature, the requirements for rapid deployment and rapid deployment of surveillance equipment are raised. Andrews suitcase emergency command terminal and 4G high-definition cloth ball control for the job site is not fixed, it is very good to meet the needs of power site operations supervision.

The Android suitcase type emergency command terminal has a 13.3-inch local high-definition display and high-definition SDI camera, and an external DV can be used for on-site monitoring; the direction of the pan-tilt on the operation panel, zooming in and zooming out, snapping the ball to the ball Machine control.

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The 4G high-definition cloth control ball has features such as light and flexible, high integration, etc. It can be adsorbed on the roof through a magnetic suction site and equipped with a tray and a triangular support to meet the multi-angle monitoring.

Shenzhen Science and Technology Co., Ltd.

5.2. Application Analysis (1) The infrastructure construction management personnel at all levels can obtain the objective information at the first time, and change the existing infrastructure management project of “on-site management and step-by-step reporting”. Provide new working methods, change the form of a single written and telephone report to a rich combination of audio, video, and writing.

(2) To realize the remote monitoring and management function of engineering construction, so that the leaders can understand the construction conditions of multiple substations in real time, and supervise and direct the requirements of civilized construction and safe construction. Without geographical restrictions, according to the actual needs of each substation, communicate at any time, and strengthen the supervision and management of important construction links.

(3) In the substation construction project, the technicians can accurately grasp the progress of the construction and control the construction process and the construction process, not only providing work efficiency and construction process quality, but also avoiding improper procedures and mistakes in the construction process. Loss of operation.

(4) To prevent the material safety at the construction site, the occurrence of personnel safety, the prevention of theft, and provide reliable evidence for the uncivilized behavior that has occurred.

6. Network Transmission System 6.1. High-Definition Wireless Transmission Taking a 3G network as an example, the transmission rate can reach 500 kbps or more in the process of high-speed movement, and it is already possible to realize the transmission of D1 video. The speed of 4G network is 10 times that of 3G network, the download speed is up to 100M, and the upload speed is 20~50M. It can completely transmit high-definition 720P/1080P video. By adjusting the stream and frame rate, it can support 720P and 1080P video recording. transmission.

In this solution, the wireless transmission adopts the 4G/wireless private network transmission mode, and the transmission link adopts the operator's 4G/professional network, which can meet the needs of single-channel or multi-channel video transmission, and the transmitted video can be clearer and smoother.

6.2. The entire network transmission part The wireless transmission network includes 3G/4G/wifi/satellite, etc. to realize the data transmission and realize the access to the Internet. Wireless in-vehicle equipment uploads data to 3G/4G base stations, accesses the private network of operators, and accesses the government-affiliated management department's video monitoring platform by means of reverse landing. The platform then transmits audio and video data to personnel of the power department, etc. On the client, the entire network transmission diagram is as follows:

Shenzhen Science and Technology - Network Transmission Section.jpg

7. Server System 7.1. Management Platform Composition The server is composed of numerous network elements: each network unit performs different functions, has a server that specifically completes device access authentication, has a server that is specifically responsible for user access authentication, and has a dedicated video. Stream forwarding servers have mobile phone streaming servers that provide mobile video viewing, and so on. Many network units form an organic whole. This whole is the system management platform, and the monitoring system management platform is the core unit of the entire monitoring system.

7.2. Server Types Server types are divided into three core parts: database and central management, platform storage, and streaming distribution services. Storage and stream distribution can be installed in multiple places. Before the platform is deployed, the size of the monitoring point must be determined, the size of the monitoring point must be determined, and whether or not the platform should be stored, how many daily monitoring points are stored online, and how many people watch online everyday. After determining these factors, you can determine the configuration of the platform server.

Central server, storage server, stream distribution server. (The three are PC servers with different network elements installed.)

(1) Central Management Server: A PC with the "central server" software installed. It is the core of software support for the entire system. It is responsible for system work parameter settings, dynamic IP address resolution, user rights assignment, video plan development, alarm information processing, linkage, and so on. Users watch videos also through the central server.

(2) Storage server: PC with "storage server" software installed. Used to store video data transmitted over the network. The storage path, the storage name, the length of the video file, the storage period of the video file, etc. are all completed in the storage service. Storage must work with the central server.

(3) Stream Distribution Server: A distribution server is a server that contains a distribution database and stores metadata and history data for all types of replication, while also replicating storage transactions for transactions. For busy systems, using remote distribution servers for transactional replication can improve performance.

IV. System Functions 1. Overall System Functions Introduction System functions can be divided into two categories: multimedia functions and management functions. Specifically include the following:

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2. Real-time transmission of high-definition video information The front-end equipment collects multi-definition video information (D1/720P/1080P). The system uses 3G/4G wireless network transmission. According to the different equipment, one or two 4G cards can be used to transmit video. Can support 4G network more, can transmit 720P and 1080P high definition video under greater bandwidth.

Using advanced H.264 video compression technology and 3G/4G wireless communication technology, it can adapt to ultra-low bandwidth video transmission, clear and smooth pictures and eliminate mosaics.

3. The client-side multi-screen monitoring front-end acquisition of audio and video by H.264 compression encoding through the 3G/4G wireless network transmission to the background monitoring center, the user in addition to watching through the TV wall, you can also through the computer, mobile phone and other client login The center platform monitors the front-end audio and video in real time.

The computer client supports single-screen multi-screen display, users can select any one or more video viewing, video window number 1,3,7,9,15 up to 60 optional. Supports screen patrols. The monitoring site can be switched to the TV wall in turn in a specific time interval in a specific time interval. It is also possible to alternately display all camera screens in an image frame. The screen switching interval can be set flexibly, and the interval time can be adjusted. .

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4.GPS/Beidou system related functions The emergency command wireless video terminal equipment and individual soldier equipment installed on the inspection vehicle support GPS/Beidou positioning to achieve the following main related functions:

4.1. Real-time Positioning and Tracking of Vehicles and Personnel The front-end monitoring equipment supports GPS/Beidou positioning system. As long as the equipment is online, it can transmit vehicle position information to the background in real time through the 3G/4G wireless network, according to the platform's own GIS map function (support multiple Maps, the system supports six kinds of maps, GoogleMap, MapABC, BaiduMap these three kinds of maps must ensure that the client and other public networks can be used to connect; these three types of maps; MapInfo, ArcGIS, SuperMap 3 kinds of maps need to build a map server, The user can select a suitable map according to his own usage habits. The real-time location of the terminal device on the electronic map can be achieved. A designated vehicle and personnel can be tracked. The law enforcement vehicle and personnel can be supervised on the driving route and the private bus can be eliminated. Use non-compliant behavior. The following figure shows:

Deep Technology - Client Screen 4.1.jpg

4.2. Vehicle route planning According to the subordinate status of each branch of the power sector, the law enforcement scope can be demarcated. At the same time, during important holidays such as the National Day and the Spring Festival, the patrol route of the patrolling personnel can be defined according to the superior leadership tasks. The system can arrange routes according to these established plans. , The background management personnel can judge whether the vehicle is driving illegally according to the real-time display route of the vehicle.

Shenzhen Technology - Client Screen 4.2.jpg

4.3. Cross-border alarm Cross-border alarm is the electronic fence function that the system possesses. Delimits an area on the electronic map. For example, the electronic fence is defined by the boundary of XX area, and the vehicle is set to be prohibited. The vehicle can only drive within XX once the vehicle is enforced. Outside the boundary of the XX City Hi-tech Zone, an alarm will be triggered. The alarm can notify the platform monitoring personnel to facilitate the monitoring personnel to stop the driver’s cross-border driving behavior in a timely manner and to eliminate the illegal behavior of the law enforcement vehicle.

Deep Technology - Client Screen 4.3.jpg

5. Alarm Linkage Alarm Linkage refers to the emergency situation of a first-line law enforcement emergency. If it cannot be handled separately and needs support, you can use the linkage function of the system to contact the nearest law enforcement personnel to increase the number. Specific alarms can be divided into the following alarm modes:

5.1. On-board alarms This plan refers to the inspection and repair of vehicles. It was found that there were emergency violations (such as theft, disputes, etc.). The inspectors found that the law enforcement forces were insufficient. Before the deterring of illegal activities, the inspectors conducted background or other system personnel. Alarm linkage, which is mainly achieved through the integrated alarm button on the wireless emergency command device.

5.2. Individual soldier alarm generally refers to the patrol personnel found emergency situations during the process of safety power inspection or on-site mediation disputes. For example, the criminals violently resisted the law, and the onlookers were encouraged to gather illegally. They can carry the individual soldier with them. The device implements an alarm and requests support from the back office or system personnel. This is mainly achieved through the solo SOS button.

5.3. Alarm Linkage Actions The categories of alarms are all aimed at quickly realizing the need for emergency linkage. Here, they mainly include: alarm recording, alarm capturing of current enforcement scenes, recording of current law enforcement vehicle location information, browsing on the main window, and sending alarms to specific personnel mobiles. Information, law enforcement roof PTZ camera goes to preset position, starts cruising, custom linkage settings.

These linkage settings can be set in advance in the platform management-linkage management, and can be set for a specific device or even a specific camera.

6. Two-way intercom Ø First-line personnel through the intercom microphone with the center platform and client users two-way intercom, timely communication of information, to facilitate the timely reporting and instructions to communicate, but also to facilitate linkage action execution;

Ø The front end can initiate a call and talkback, and the back end can also contact the front end to initiate talkback;

Ø The system supports the creation of multi-party calls, that is, front devices and platform users can join multi-party calls to facilitate multi-device and multi-user communication within the system. It is easy to set up temporary meetings, and the system supports echo cancellation to avoid crosstalk.

Ø Support noise reduction function, can effectively eliminate noise, and can achieve clear and smooth two-way voice when the car environment is noisy;

Ø The front-end background can adjust the real-time volume to meet the needs of different environments for sound quality.

Ø Support audio and video synchronization transmission and recording, to facilitate the background to learn more about frontline law enforcement.

7. Picture capture The portable device has a snap button. Front-end inspection personnel can capture pictures of important law enforcement screens, save pictures to front-end storage devices after snapshots, and upload them to the back-end storage server. Administrators of the back-end platform can directly operate on the management platform. The on-line device captures the picture and the picture is stored in the local memory to ensure that the law enforcement officers are civilized and law enforcement.

8. The video storage system supports the video storage of video, GPS information, and alarm information. There are manual video recording, alarm recording, scheduled recording, and scheduled recording. The size of the storage space is calculated according to actual needs during system design and storage. There are three options for front-end device hard disk (or SD memory card) storage, server platform storage, and client-side local storage.

9. Mobile phone viewing DeepMedia's Cremedia 7.2 integrated monitoring and management platform can support mobile phone terminal client or PAD login in addition to support for TV wall and PC client viewing. This is mainly for the needs of relevant department leaders for remote command deployment and law enforcement work. .

Different types of mobile phones for users, we also provide two solutions: one is the mobile streaming media viewing, the advantage is easy to use, do not require the user to install additional mobile phone software, direct use; versatility, the use of mobile phone types, do not Adapt each phone. The second is to develop different client software for smartphones with different operating systems. At present, the system's mobile phone functions mainly support video viewing, video recording, picture capture and upload, PTZ control, two-way conversation, etc. Meanwhile, the mobile client supports horizontal and vertical screens. Switch, support D1/720P video format browsing.

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10. Equipment management and system maintenance The system is equipped with front-end equipment management functions. Users can log in to the platform side of the client to understand related information such as online status and equipment parameters of the front-end equipment. Users who have been granted the right can perform the parameters of the front-end equipment. Modifying and configuring the front-end equipment to meet the actual application needs of the operating parameters, combined with real-time network conditions to achieve the best results, remote equipment upgrades and system self-maintenance features make the entire system maintenance efficient, fast, saving time and effort.

V. Product introduction 1.CreMedia7.2 network video monitoring software

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CreMedia is a million-level network video surveillance system developed by our company. The system has many advantages such as full network, high quality, wide coverage, large capacity, multiple services, integration, manageability, operation, and one-stop service. The CreMedia system can seamlessly integrate with existing videoconferencing systems and business systems, and truly create integrated video informatization solutions.

The main features:

Ø Cross platform supports Windows and Linux operating systems and supports multiple databases.

Ø Extensible component architecture, easy to expand.

Ø Large-capacity carrier-grade capacity design supports millions of devices and user access.

Ø Open support for standard definition IPC, high-definition IPC, DVR, and DVS from dozens of equipment manufacturers such as SONY, Haikang, and Dahua.

Ø Stability High stability, support for hot standby and clustering.

2. Low-power wireless video server SF-4000L-AHD-4G wireless video server uses the latest H.265 video compression algorithm, analog HD AHD video input, supports 4G dual-card video transmission, special architecture of low power design, standby Power consumption does not exceed 0.5 watts, support for SMS, telephone, timing and other wake-ups, to facilitate the user to start the device at any time, SMS can directly control the alarm output switch control peripherals. It can support the access of the national power grid platform, and reserves the power grid encryption chip to encrypt the transmission data. This product can be used in the unattended environment of the field and in places where the wired network is not convenient for wiring; the remote channel is stable and reliable, and multiple means ensure that the remote control is always effective. .

Shenzhen Science and Technology-SF-4000L-AHD-4G.png

Features:

ØH.264/H.265视频压缩算法Ø双向语音对讲ØAHD视频输入,可支持1080P/720P视频格式,向下兼容CVBS

Ø全网通模块,支持4G双卡绑定传输,可支持TDD-LTE/FDD-LTE向下兼容3G

ØTF卡本地录像存储,单卡可支持到128GB

Ø低功耗设计,待机功耗0.5W

Ø电话/短信远程唤醒,短信直接控制报警输出接口Ø预留国家电网加密芯片接口ØRS485云台控制ØRS232透明串口3.4G布控球SF-BK-4G系列3G/4G布控球网络摄像机是针对应急布控、秘密监控部署等视频监控而开发的一款产品,由高清晰摄像机、阵列红外照明灯组、高精度云台和减震吸盘等模块组成。

深方科技-SF-BK-4G.png

功能特性:

(1)红外功能Ø红外照射距离60米,实现日夜监控Ø采用恒流、恒压驱动电路、PWM脉冲控制电路设计,保证红外灯长时间稳定工作Ø红外灯控制和一体机ICR滤片同步切换,同步彩转黑,达到完美夜视效果(2)机芯功能支持自动光圈、自动变焦、自动白平衡、背光补偿和低照度(彩色/黑白)自动/手动转换功能(3)系统功能Ø采用1/2.8″241W像素逐行扫描CMOS,图像清晰,运动无锯齿,1080P全高清Ø精密电机驱动,反应灵敏,运转平稳,在任何速度下图像无抖动Ø一体化结构设计,内置天线,防护等级可达IP66

Ø支持数据断电不丢失Ø支持数字降噪(4)云台功能Ø水平方向360°连续旋转,垂直-15°~90°,支持自动反转,无监视盲区Ø支持200个预置点Ø配合客户端可实现巡航扫描,自动归位等功能Ø支持比例变倍功能,旋转速度可以根据镜头变倍数自动调整(5)网络功能Ø采用H.264HighProfile视频编码技术,

Ø支持双MicroSD卡存储,每张可支持64G容量Ø支持双码流功能,支持手机观看Ø支持双向语音对讲(需配备蓝牙耳机)

Ø内置Wifi模块,可使用手机、平板直接预览视频,手机、平板也可通过球机上网(6)便捷功能Ø内置锂电池,使用时长可达6至8小时,超长使用Ø磁力复合吸盘设计,简单部署,可选配支架、固定盘及专业手提箱,移动方便4.安卓手提箱应急指挥终端

深方科技-安卓手提箱加布控球.png

SF-1030P-AD便携式安卓智能通信系统是一款基于Android系统架构,集高清、智能、4G最新前沿技术,功能丰富、性能卓越、可靠便携的无线视频应用产品。

Ø网络功能:支持无线传输,支持完整的TCP/IP协议簇,可实现设备接入平台,视音频、报警、定位等数据通过网络进行传输;

Ø无线功能:支持2G/3G/4G任何一种网络;支持WIFI;

Ø双码流:支持双码流传输,一路用于本地高清存储,一路用于网络传输;

ØWiFi:内置WiFi,可通过WIFI连接平台,支持热点网络共享;

Ø双卡设计:每个模块都可以支持三大运营商的所有网络制式;

Ø语音对讲:支持设备与设备、设备与平台全双工语音对讲;

Ø定位功能:内置GPS和北斗混合定位模块;

Ø生物认证:设备标配有按压式指纹识别功能,可使用指纹登录系统,便于权限控制,可定制对接*网指纹识别比对功能;

Ø手动报警:支持按钮一键式手动报警,同时上报平台和集群用户;

Ø存储:设备内置ssd硬盘存储,可扩展64GB或以上TF双卡,满足高清存储,可定制*部加密认证功能;

Ø内置摄像机:内置800万像素高清摄像机,实现视频对讲Ø外置摄像机:支持外接TVI高清云台摄像机,编码能力可达1080P;

Ø录像:支持设备按钮一键录像;

Ø抓拍:支持设备按钮一键抓拍;

Ø触摸屏:13.3寸屏高清视网膜屏,高亮度,600流明;支持视频观看、功能操作、参数配置等触摸操作;

Ø系统设置:支持音量、亮度、时间、WIFI、蓝牙等系统功能设置;

Ø消息:实现设备间互发短消息、视频、图片、位置共享等应用;

Ø可视对讲:实现设备间双向视频、双向音频应用;

Ø文件管理:设备文件的管理和使用,实现文件上传平台、编辑、删除等;

5.安卓单兵无线视频终端

深方科技-4G手持设备5.jpg

SF-1012P-AD系列手持式安卓智能终端是一款基于Android系统架构,集高清、智能、4G最新前沿技术,功能丰富、性能卓越、可靠便携的无线视频应用产品。

ü网络功能:支持无线传输,支持完整的TCP/IP协议簇,可实现设备接入平台,视音频、报警、定位等数据通过网络进行传输;

ü无线功能:支持2G/3G/4G任何一种网络;支持WIFI,支持蓝牙;

ü双码流:支持双码流传输,一路用于本地高清存储,一路用于网络传输;

üWiFi:内置WiFi,可通过WIFI连接平台,支持热点网络共享;

ü双卡设计:每个模块都可以支持三大运营商的所有网络制式;

ü语音对讲:支持设备与设备、设备与平台全双工语音对讲;

ü定位功能:内置GPS和北斗混合定位模块,同时配合基站辅助定位功能,可高精度准确定位设备地理位置;

ü蓝牙:内置蓝牙,可外接蓝牙耳机进行对讲,可扩展其他蓝牙设备,如打印机、读卡器等;

ü生物认证:设备标配有按压式指纹识别功能,可使用指纹登录系统,便于权限控制,可定制对接*网指纹识别比对功能;

ü手动报警:支持按钮一键式手动报警,同时上报平台和集群用户;

ü存储:设备内置16GBFlash,可扩展64GB或以上TF卡,满足高清存储,可定制*部加密认证功能;

ü内置摄像机:内置800万像素高清摄像机,实现高清监控,可定制1300万像素摄像头;

ü外置摄像机:支持外接HDMI高清摄像机、DV摄像机,编码能力可达1080P;

ü录像:支持设备按钮一键录像;

ü抓拍:支持设备按钮一键抓拍;

ü触摸屏:4寸屏高清视网膜屏,高亮度,420流明;支持视频观看、功能操作、参数配置等触摸操作;

ü视频输出:支持Micro-HDMI接口高清视频输出、LCD屏高清视频输出;

ü重力传感器:当设备摔落等会产生加速度报警,保证数据信息安全;

ü闪光灯:内置LED高亮闪光灯,可作为内置摄像机的闪光灯;

ü系统设置:支持音量、亮度、时间、WIFI、蓝牙等系统功能设置;

ü集群对讲:实现群组内多方集群语音应用;

ü消息:实现设备间互发短消息、视频、图片、位置共享等应用;

ü可视对讲:实现设备间双向视频、双向音频应用;

ü文件管理:设备文件的管理和使用,实现文件上传平台、编辑、删除等;

ü安全管理:安全性用户管理,实现不同用户具备不同使用权限,便于管理和维护。

6.高清车载硬盘录像机

深方科技-4G车载设备6.jpg

车载监控产品广泛用于汽车、船舶等交通行业,行业内市场细分对移动监控提出了特殊的要求。不同的车辆,对车载产品的需求也不尽相同。公检法、*、运钞、通讯、旅游车等特种车辆关心的主要是录像资料完整、有效,对设备的存储性能、图像质量要求高。SF-4004C-GQ系列高清无线车载硬盘录像机,是集无线视频传输、双向语音对讲、车载硬盘录像、北斗/GPS定位、车载媒体播放于一体的全方位、多功能车载高清监控设备。该设备支持存储1080P图像视频格式,画面清晰流畅,犹如置身现场。增强的集群对讲和指挥系统应用为用户带来全新的操作体验,适用于对移动监控质量要求较高的客户,如*警务、交通运输、*执法、特种车辆监控等。

Features:

Ø支持1080P存储和无线传输Ø增强的集群对讲和指挥系统Ø具备很好的人机操作控制界面,并可根据要求添加定制内容Ø独创无线编码传输技术,确保流畅的视频效果,支持多卡多种网络Ø自主知识产权录像存储结构(CEFS流式存储技术),超强容错,异常断电数据不损失Ø支持双向语音对讲Ø双硬盘备份与存储Ø采用钢丝绳减震技术,军工级减震结构设计,延长硬盘寿命,提高系统可靠性Ø支持抽拉硬盘,更换存储介质更为便捷Ø嵌入式系统设计,内置硬件看门狗,可7×24小时连续运行
六.效益分析 <br>  <br>  电力高清无线监控系统的实施,有效的提高了电力部门安全生产管理的效率,说明视频监控方案达到了提高施工现场管理水平和建设效率的预想。施工现场视频监控子系统的建设可以解决变电站工程现场建设中面对的各种情况,有利于及时掌握各个工地现场第一手的工程建设情况,全面系统地了解工程进度、物资设备等方面的信息;输电线路和安全巡检监控子系统可以及时发现和解决在电力线常规监控和巡检过冲中出现的新情况和新问题,为各级电力公司提供第一手的资料,方便各级领导作出及时、准确的决策。

Ø时间效益加快汇报速度,减少汇报环节,加快决策速度,提高工程进度。

Ø经济效益工程初期投建本系统,待变电站投运转变职能,使系统符合变电站监控要求。在降低设备投入成本的同时,运用远程可视化技术也降低了管理成本,同时减少了材料被盗风险。

Ø质量效益提高指挥的准确性,及时了解工程进度和施工环节,最大限度地减少施工错误的发生率,降低由于工作指令、电话、文字、图纸等信息的传输误差造成的工程质量问题,有利于提高工程施工质量。

Ø社会效益通过全新的可视化管理手段,可以及时解决安全隐患问题,实现真正的文明施工和安全施工。

D(G)  series pumps designed in accordance with ISO2858 standard,are multi-stage single-suction horizontal centrifugal pumps featured by integrated simple construction for less space, easy installation, smooth operation with less noise and free of daily maintenance due to the introduction of high quality mechanical seals and closed coupling.

Typical Applications---

Water supply system
Lowering underground water level
Boosting
Gardening and aricultural irrigation
Various kinds of industrial application


2. application of D(G) High head Water Pumps


Water supply system
Lowering underground water level
Boosting
Gardening and aricultural irrigation
Various kinds of industrial application

D(DG) High Head Water Pumps

Water Pump, High Head Water Pump, Clean Water Pump, Horizontal Water Pump, Centrifugal Water Pump, Horizontal Pump

Shijiazhuang Naipu Pump Co., Ltd. , https://www.naipu-pump.com