Analysis on the design requirements of remote video surveillance system for restaurant chains

1. Applicability:

Remote Monitoring System for Food and Beverage chains: restaurants, hotels, coffee shops, restaurants, and fast food restaurants.

2. Demand Analysis:

The main purpose of the space for chain stores is to provide catering and leisure and entertainment services to customers. The number of entry and exit personnel is large, and the population mobility is large. This creates conditions for criminals to sneak into these places to seek opportunities to commit crimes, it directly affects the guest's personal safety and property security, and the reputation of hotels and coffee shops. The Finance room, front desk, and other places are the main places for cash turnover, the establishment of a network video surveillance system, alarm, and communication security protection system is an effective means of defense. At the same time, the installation of a fire prevention alarm system can be put out in the bud of a fire, to avoid major fire accidents.

3. solution design

The Video Monitoring System alarm system consists of the camera part (sometimes there are pickups, alarm detectors), transmission part, control part, and display and record part. Each part contains more specific devices or components.

Camera part

The camera is the cutting-edge part of the Network Video Monitoring System and the "eye" of the entire system ". It is arranged in a certain position of the monitored place, so that its field of view angle can cover all parts of the monitored area. Sometimes, the area of the monitored place is large. To save the number of cameras used, simplify the transmission system and control and display system, install an electric (Remote Control) on the surveillance camera) the variable focal length (zoom) lens allows the monitoring camera to observe farther and clearer distances. It also installs the camera on the electric cloud platform and uses the Controller to control it, the cloud platform enables the monitoring camera to rotate horizontally and vertically, so that the camera can cover a larger angle and area. In short, the camera, like the eyes of the entire system, changes the content it monitors into an image signal and sends it to the monitor of the control center.

Defense site design:

A. an ordinary surveillance camera can be installed in the dining room of a restaurant. The camera requires a relatively low illuminance. In general lighting, the face and activity of a person can be seen clearly. At the same time, it is concealed, the overall layout is not damaged.

B. Install a monitoring camera in the center of the restaurant. The camera, lens, cloud platform, and decoder are all placed in a semi-sphere protective cover. The exterior is elegant and can be decorated to some extent. The surveillance camera can rotate horizontally at 360 degrees and vertically at 90 degrees. The 27-fold optical zoom lens can zoom in and out the image, and the activities of the personnel in the hall can be clearly viewed.

C. install surveillance cameras on several outdoor walls around the restaurant according to the venue conditions. Personnel entering and exiting the restaurant can observe and record them, especially the parking lot should be more careful.

After the above layout, activities can be observed from the outside to every corner of the restaurant. You can also save the recordings if necessary.

Transmission Part

Transmission is the system image signal, sound signal, control signal and other channels. Currently, most network video surveillance systems use twisted pair wires for transmission. If the surveillance camera is far away from the control center, optical fiber transmission is also used. The focus of image signal transmission is that after the image signal passes through the transmission system, no obvious noise or distortion is produced (the color signal and Brightness Signal do not produce obvious distortion ), ensure that the clarity and gray level of the original image signal (the image signal output from the camera) are not significantly reduced.

CONTROL Part

The monitoring center uses the cloud thitong HD video monitoring system platform. The system consists of video workstations, central servers, and network clients. Using an IP network, you can monitor and manage hundreds of monitoring sites at the same time. You can also perform video recording during monitoring. However, you can use a variety of video recording methods, including dynamic alarm recording, reservation recording, manual recording, and loop recording.

4. device Selection

Surveillance cameras

Cameras are the most critical equipment in the system. Their technical indicators determine the image quality of the entire system. The main performance indicators of cameras are sensitivity, clarity, and signal-to-noise ratio. Based on our years of experience, the performance indicators of surveillance cameras are very important to the entire system. According to the specific situation of the enterprise, the front-end monitoring camera uses a 1/3 "high definition Color CCD monitoring camera.

Headquarters monitoring center

The headquarters monitoring center uses the cloud thitong HD video monitoring system platform, which consists of video workstations, central servers, and network clients. Using an IP network, you can monitor and manage hundreds of monitoring sites at the same time.

1) Video Workstation

The video workstation is the core monitoring device of the monitoring center, that is, the "Network Monitoring video host". It is responsible for connecting the front-end monitoring camera and providing the display, recording, and cloud mirror control functions of all remote video images. It can also be used as a video source for other monitoring centers and network clients to forward audio/video signals. It consists of computer and video workstation software. Due to the limitations of the computer and network bandwidth, a video workstation can only remotely monitor a limited number of images. Therefore, the more front-end cameras a monitoring center needs to remotely monitor, the more video workstations you need.

2) network client

A network client is a user terminal that requires remote network monitoring in addition to the monitoring center. These clients are relatively scattered, have low monitoring requirements, and have relatively random login access without video recording requirements. Therefore, they are integrated into the "Network Client" users. It consists of a computer (general computer or laptop) and client software. The client features and interfaces are relatively simple and suitable for leaders at all levels and relevant departments. They are mainly responsible for image display, cloud mirror control, and remote playback.

3) Central Server

The central server is the management core and information authentication center of the entire system. The main function is to centrally manage various main control devices (surveillance cameras, PC/Embedded Digital Hard Disk recorders, network video servers, and video workstations) and network monitoring terminals, including device registration and authentication, user registration and authentication, configuration of the relationship between devices in the system, configuration of user permissions in the system, centralized remote control, modification of device parameters and settings, resource allocation, and pointing to services. It consists of computers and central server software. The central server is usually installed in the total monitoring center.

5. system features

Powerful central management functions

The concept of central server and video workstation proposed by yunshitong Distributed Remote Video Monitoring System is for users with a wide range of jurisdiction and a large system of monitoring applications, it will provide clearer networking, monitoring, control, and management logic relationships, so as to improve system usage, reduce operating costs and system maintenance costs.

The central server and video workstation can be stacked, that is, a video workstation can contain not only sub-Hard Disk recorders, but also more sub-video workstation. This function will provide our system with more powerful management and expansion capabilities. We use this feature of video workstation to set, integrate, and centrally manage various subsystems. It provides a powerful platform for large-scale and ultra-large distributed network video monitoring systems.

Comprehensive System Functions

The host and client of the system monitoring and control system can monitor multiple local and remote monitoring frontend in real time. Different users can assign different control permissions based on their positions. The on-site images can be divided into monitoring groups based on their locations and displayed in 4-screen, 9-screen, or 16-Screen mode. You can set manual videos, scheduled videos, and automatic alarms. In this system, the central server and storage server are reasonably configured, as well as the front-end network video encoder, which will maximize their efficiency.

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Analysis on the design requirements of remote video surveillance system for restaurant chains