A video surveillance card is typically a PCI slot card that captures video signals from cameras or video devices and stores them on a hard drive in MPEG format. These cards play a crucial role in security systems, enabling the recording and playback of video footage for monitoring and investigation purposes.
**First, Playback Quality**
One of the most important functions of a security monitoring system is the ability to review historical video footage. The quality of playback is a key performance indicator for these capture cards. Genuine surveillance cards should deliver ultra-high-definition D1 images with 10-bit color depth, ensuring no color distortion and no lag. Achieving this level of quality is extremely difficult with counterfeit cards, which often result in poor image clarity and delays during playback.
**Second, Display Resolution**
The resolution of a surveillance capture card is usually divided into display resolution and video resolution. The display resolution refers to the desktop resolution of the Windows system. A genuine capture card can achieve a resolution of 704x576 when displaying multiple screens, while recording and streaming, it can support resolutions up to 352x288 or 320x240. These are features that many standard capture cards on the market cannot match, especially pirated ones. Pirated cards often produce pixelated images, leading to a significant drop in visual quality.
**Third, RMON (Remote Monitoring)**
Remote monitoring is a critical feature for any modern surveillance system. However, some engineering companies lack confidence in its effectiveness. A reliable remote monitoring function includes multi-screen viewing, video playback, dynamic IP support, automatic reconnection after power loss, remote control, configuration, status checks, stream adjustment, two-way voice communication, alarm handling, and multicast capabilities. It's essential to test all these features and assess the quality of the remote video, not just its smoothness.
**Fourth, Frame Rate**
Frame rate, measured in frames per second (fps), indicates how many times the graphics processor updates the image each second. A higher frame rate results in smoother and more realistic motion. Under the P system, a frame rate of 100 fps is considered excellent, while 120 fps offers even better performance. In contrast, pirated cards typically only reach around 75 fps, far below the industry standard.
**Fifth, Card Functionality**
A genuine surveillance capture card must support image acquisition, recording, and remote transmission. It should also be capable of collecting alarm signals, triggering alarms, and sending alerts to the central monitoring station. Additionally, it should allow control of PTZ cameras and lens adjustments, as well as matrix switchers for video routing. Counterfeit cards often fail to provide these essential functions.
The 7130 surveillance card is specifically designed for video surveillance applications. It supports the standard DirectShow API without requiring additional development and offers customizable SDKs for different customer needs. It can be used in webcasting, streaming media, and video conferencing. The 8 Series, 9 Series, and AV Series have advanced intelligent features such as smart brightness adjustment and intelligent local amplification.
**Key Advantages of 8, 9, and AV Series Capture Cards:**
- Powerful data retrieval and analysis for fast response and investigation
- More effective surveillance by focusing on relevant information
- Fast reaction time—millisecond alarm trigger capability
- Intelligent brightness and local enhancement for better image quality
**Sixth, After-Sales Service**
Purchasing a genuine product means investing in service. Many users focus only on price and overlook the importance of after-sales support. Unfortunately, those who buy pirated products often find themselves without technical assistance or repair services when issues arise. This lack of support can damage their trust and affect their business. Therefore, users should enhance their awareness of counterfeits and engage in technical discussions to evaluate the service capabilities of suppliers.
Today’s **smart video surveillance capture cards** are widely used in industries such as banking, telecommunications, electricity, prisons, transportation, shopping malls, factories, and institutions. They offer enhanced security, reliability, and efficiency for modern surveillance needs.
Piston and Rod Seals
Piston Seals and Rod Seals are important seals used in mechanical equipment. Their main function is to prevent liquid and gas leaks and ensure the normal operation of mechanical equipment. Piston seals and rod seals are usually used in hydraulic and Pressure system, such as hydraulic cylinders and Pneumatic cylinder. The quality and performance of these seals directly affect the efficiency and lifespan of mechanical equipment.
The classification of piston seals and rod seals is mainly based on their material and design structure. According to the different materials, they can be divided into rubber seals, polyurethane seals, polytetrafluoroethylene seals, metal seals, etc. According to the different design structures, they can be divided into unidirectional seals, bidirectional seals, rotary seals, etc.
Rubber seals are a common type of seal, and their main material is rubber. Rubber seals have good sealing performance and wear resistance, and are suitable for medium and low pressure hydraulic systems and Pressure system. Polyurethane sealing element is a high-performance sealing element, and its main material is polyurethane. Polyurethane seals have high wear resistance, high temperature performance and high pressure performance, and are suitable for high-pressure hydraulic systems and Pressure system. PTFE sealing element is a corrosion-resistant sealing element, and its main material is PTFE. PTFE seals have excellent corrosion resistance and high temperature resistance, making them suitable for fields such as chemical and food processing. Metal seals are a type of high-temperature and high-pressure seal, mainly made of metal. Metal seals have high temperature and high pressure performance and corrosion resistance, and are suitable for high temperature and high pressure hydraulic systems and Pressure system.
Unidirectional seals and bidirectional seals are classified based on different sealing directions. A unidirectional seal can only prevent the leakage of liquid or gas from one direction, while a bidirectional seal can prevent the leakage of liquid or gas from both directions. Rotating seal is a type of seal that can rotate and is mainly used for sealing rotating shafts. Rotary seals are divided into unidirectional rotary seals and bidirectional rotary seals.
Overall, piston seals and rod seals play a very important role in mechanical equipment. Choosing appropriate seals can improve the efficiency and lifespan of mechanical equipment, reduce maintenance costs and downtime. When selecting seals, it is necessary to comprehensively consider factors such as the working environment, pressure, and temperature of the mechanical equipment to choose a suitable seal.
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