The basic composition of the system
The video security monitoring system generally consists of four main parts: front-end, transmission, control, and display recording. The front-end part includes one or more cameras and associated lenses, heads, shields, decoding drivers, etc.; the transmission part includes cables and/or optical cables, and possible wired/wireless signal modulation and demodulation equipment, etc.; control part It mainly includes a video switcher, a PTZ camera controller, an operation keyboard, a type control communication interface, a power supply, an accompanying console, a monitor cabinet, etc. The display recording device mainly includes a monitor, a video recorder, and a multi-picture splitter.
According to the purpose of use, the scope of protection, information transmission methods, control methods, etc., video security monitoring system can have a variety of composition modes. This standard only proposes common technical requirements for common parts of various types of video surveillance systems.
System equipment requirements
System parts selection
Should meet the on-site environmental requirements and functional requirements for use, and should comply with existing national standards and industry standards related technical requirements.
The front-end device can be a separate combination camera or an integrated camera.
The transmission equipment may be an ordinary cable, or it may be an optical modem equipped with an optical fiber, or it may be an open microwave transmission device.
The display device can be an ordinary television, a professional monitor, or a monitor and/or
The display device may be an ordinary television set, a professional monitor, or a display and/or other device such as a projector, a large screen, etc.; the recording device may be an ordinary video recorder, a long delay video recorder, or a digital recording device such as Digital hard disk recording equipment, and possibly configured multi-screen splitters, large-screen controllers, etc.
The number of display devices to be configured should meet the requirements for the number of cameras used for on-site monitoring and management, that is, the ratio of input and output of video should be reasonably determined.
The screen size of the display device should meet the observer monitoring requirements.
Digital image recording equipment should be reasonably selected based on management requirements. The device itself should have non-modifiable system characteristics information (such as the system "time stamp", tracking file or other hardware control device switch and PTZ camera controller can be separate, usually in a slightly larger system, the switch , PTZ camera controllers and other integrated devices.
Coordination: The performance and technical requirements of various ancillary equipment should be coordinated to ensure that the system's image quality loss is within an acceptable range.
System design requirements
The design of the normative and practical video security monitoring system shall be based on the actual survey of the site and shall be based on overall considerations such as environmental conditions, monitoring objects, investment scale, maintenance and monitoring methods. The design of the system should meet the requirements of the relevant risk levels and protection levels, and comply with the relevant design specifications, design assignments, and the management and use requirements of the construction party.
The design of advanced and interchangeable video security monitoring systems should be technically adaptable to advancement and interchangeability of equipment, leaving room for system capacity expansion and/or retrofitting.
Accuracy The video security monitoring system security should be able to perform accurate and real-time monitoring of the protection target under the on-site environmental conditions and selected equipment conditions, and should be able to clearly display and/or record the available images of the protection target according to design requirements.
Integrity
The system shall maintain the original integrity and real-time nature of the image information and sound information, ie, regardless of how the intermediate process is handled, the images and sounds displayed/recorded/played back shall be kept consistent with the original scene, ie, in the color reproduction, image contours. Restorative (grayscale) event successors, sound features, etc., maintain the maximum similarity (subjective evaluation) with the scene scene, and the delay between the real-time display of the back-end image and sound and the occurrence of live events should be reasonable. Within range.
There should also be a reasonable allocation of on-site video detection range in order to obtain complete image information on site and reduce blind spots in the target area.
When it is necessary to review the monitoring of the live sound, the system shall be equipped with a sound review device (audio detection).
Linkage compatibility video security monitoring system should be able to link with the alarm system, entrance and exit control systems. When designing in conjunction with other systems, system integration design should be carried out. Each system should be compatible with each other and work independently. For medium and large video security monitoring systems should be able to provide a corresponding communication interface, in order to connect with the host management computer or network to form a comprehensive and multimedia monitoring network.
System function requirements
Overview The system shall have the basic functions of image signal acquisition, transmission, switching control, display, distribution, recording and playback.
Video detection and image signal acquisition
Video detection equipment should be able to clearly and effectively (in the case of well-supported transmission and display equipment) detect the scene of the image, up to four (including four) levels of image quality. For a site with a particularly poor electromagnetic environment, the image quality should not be lower than three.
Video detection equipment should be able to adapt to the lighting conditions in the field. When the ambient illumination does not meet the video monitoring requirements, auxiliary lighting should be configured.
The protective measures of video detection equipment should be coordinated with the site environment and have corresponding equipment protection levels.
Video detection equipment should be compatible with the scope of observations. When necessary, fixed target monitoring is used in conjunction with moving target tracking.
Audio detection range should be compatible with its monitoring range.
control
According to the scale of the system, an independent video surveillance room may be set up, a joint monitoring room may be set up together with other systems, and the central control equipment may be placed inside the control room, and a duty place may be provided for the on-duty personnel.
The monitoring room shall have preventive facilities to ensure the safety of equipment and on-duty personnel.
Operational control and functional operation of the video surveillance system should be performed on the console.
Large-scale systems should be able to monitor front-end video signals and give warnings of lost video signals.
The system should be able to operate manually or automatically to remotely control various actions of the camera, pan/tilt, lens, and shield.
The system should be able to manually switch or program automatic switching, and all video input signals are fixed or time-sequentially displayed on the specified monitor.
Large and medium-sized systems should have a storage function, and all programming settings, camera numbers, time, and address information can be maintained when the utility power is interrupted or shut down.
Large and medium-sized systems should have an interface with the alarm controller. When the alarm occurs, the image of the corresponding camera can be switched and displayed and recorded.
Other functional configurations of the system should meet the requirements for use and redundancy.
Large and medium-sized systems should have the ability to switch synchronously with audio.
According to user requirements, the system can set up sub-control facilities; sub-control facilities should usually include control equipment and display equipment.
The system linkage response time should be no more than 4s.
Signal transmission
Signal transmission can use wired and/or wireless media, using methods such as modulation and demodulation; it can be transmitted using dedicated lines or public communications networks.
Various transmission methods all seek to ensure the consistency and completeness of the output and input of the video signal.
The signal transmission should ensure the image quality and the accuracy of the control signal (response in time and prevent malfunction).
The signal transmission should have preventive measures. There should be anti-signal leakage and/or encryption measures in the wired line transmission. There should be encryption measures in the cable public network transmission and wireless transmission.
Image display
The system should clearly show the images captured by the camera. That is, the resolution of the display device should not be lower than the overall requirement of the system image quality level.
The system should have text prompts for the image source, date, time, and status of operation.
Video signal processing and recording/playback
The video motion alarm and video signal loss alarm function can add necessary facilities according to the user's requirements.
When a combination of multi-screen display or coded recording is required, a video signal processing device, a multi-picture splitter, should be provided.
According to needs, the following video signals and live sound recordings are stored using the image and sound recording system: a) image signals and sound signals of the event site and its entire process; b) image signals and sound signals when an alarm occurs at a predetermined location; c) Dynamic site information that the user needs to master.
All or selective records of the source of the image, the time, date, and other system information should be available. Alarm recordings for particularly important fixed areas should provide image recording before the alarm.
The storage time of recorded image data should be reasonably determined according to the application and management needs.
The recording mode of the image signal can be analog and/or digital, and it should be comprehensively considered based on factors such as the cost of recording and the effectiveness of legal forensics (uniqueness of record content and non-modification).
The system should be able to correctly play back recorded images and sounds, and the system should be able to correctly retrieve the time and place where the information was recorded.
power supply
Power Supply Range The video surveillance system's power supply range includes all system equipment and auxiliary lighting equipment.
Front-end equipment supply The front-end equipment (excluding auxiliary lighting devices) should be reasonably configured and centralized power supply should be adopted.
Auxiliary lighting power supply The auxiliary lighting power supply can be reasonably configured according to site conditions.
Power supply security requires that the power supply be protected against lightning and electrical leakage.
Installation requirements
Installation method The installation method of front-end equipment should meet the requirements of civil engineering closed-circuit monitoring television system engineering specifications.
Cable laying shall comply with the electrical design code for civil buildings.
Other requirements Control and display The installation of recording equipment should meet the requirements for safety and management use.
Security requirements
The equipment used in the video security monitoring system shall comply with the safety requirements and test methods for safety alarm equipment and the safety requirements specified in the relevant product standards.
The mechanical structure of any part of the video security monitoring system shall have sufficient strength to meet the requirements of the use environment and prevent the hazards to personnel due to mechanical instability, movement, protrusions and sharp edges.
Environmental adaptability requirements
In the case of excessively high, low temperature and/or too high, too low atmospheric pressure, and/or system equipment that operates in a highly corrosive, high humidity environment, appropriate protective measures shall be provided.
System reliability requirements
The average time between failures (MTBF) of the equipment used in the system should not be less than 5000h.
The first failure after system acceptance should be longer than 3 months.
Logo
The signage system equipment of the system equipment shall have a signage. The content of the signage shall include at least: the equipment name, manufacturer, production date or batch, and power supply rating.
The sign requires that the sign, signage must be durable and legible. Signage should not be easily removed and not curled.
The main equipment used in the manual attached to the equipment should be provided with installation instructions. The contents of the manual include: appearance drawing, name of each part, function, specifications, various important technical indicators, operation methods, installation methods, wiring methods, precautions, and environmental protection requirements.
The document data system design and construction unit shall provide all technical documents in accordance with the requirements of the safety and prevention engineering procedures; the documents shall be standardized and the graphic symbols shall comply with the requirements of the general graphical symbols of the safety precaution system.
Automatic Packing Machine
Automatic packaging machine is generally divided into semi-automatic packaging machine and automatic packaging machine. Automatic packaging machine is mainly used for automatic packaging of food, medicine, chemical industry and plant seeds. The material can be granule, tablet, liquid, powder, paste, etc. The automatic packaging machine has the functions of automatic measurement, filling, bag making, sealing, cutting, conveying, printing production batch number, increasing easy incision, warning without material, mixing, etc.
It is mainly suitable for packing instant noodles, ice cream, biscuits, Weihua biscuits, egg yolk pie, egg roll, bread, sausage, seaweed, frozen food, medicine, medicine board, infusion bag (bottle), soap, soap, mosquito repellent incense, paper towel, toilet paper, card, adhesive tape, disposable tableware (knife and fork), etc.
The automatic packaging machine is advanced in design, reasonable in structure and reliable in performance. The automatic packaging machine adopts double synchronous belt pulling film, which is controlled by the cylinder for tension, automatic deviation correction, automatic alarm protection function, and the maximum loss reduction. The measuring device is matched, and it integrates bag making, filling, filling, printing and counting. The metering device can be modified according to the material opening and closing mode.
Basic characteristics
1. Invention patent: a roll of film is automatically cut and translated into two packaging films on the machine, and two lines of articles are automatically packed. One machine has two capacity, small area, and saves people and energy.
2. Touch screen control, simple operation, intuitive display, modular design of electrical appliances, digital control.
3. There are three driving modes: double frequency conversion, double servo and three axis servo. No mechanical transmission, stable and reliable operation, low noise and high tracking accuracy.
4. Material position adjustment: automatic or jog button adjustment.
5. Material conveying width adjustment: one handle can adjust two rows of conveying width at the same time.
7. Two sets of adjustable bags can adjust the height and width of the bag.
8. There is a traction guide wheel in front of the longitudinal heat sealing wheel, and the traction guide angle can be adjusted during operation
Automatic Multi-Head Packing Machine,Automatic Nut Filling Machine,Automatic Powder Package Machine,Automatic Weighting Package Machine
Glove Industry Co.,Ltd. , https://www.gloveind.com