News

News

  • Outdoor wireless monitoring POE data transmission system

    There are indoor and outdoor security video surveillance projects. Indoors generally do not take lightning protection measures. However, for outdoor video surveillance, we cannot predict the weather conditions. It is possible that the sun will be shining in one second, and there will be thunder a...
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  • Analysis of the difference between OFDM and COFDM technology

    COFDM (coded orthogonal frequency division multiplexing), short for Coded Orthogonal Frequency Division Multiplexing, is a high-speed transmission technology in a wireless environment. It is currently the world’s most advanced and most promising modulation technology. The main idea of ​​the...
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  • Wireless image transmission has these advantages, you must understand

    The wireless image transmission solves all the troubles of wiring well, and is favored by users who transmit video over long distances and are not suitable for wiring and need to move the video source. Such as film and television shooting, sports live broadcast, education live broadcast and so on...
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  • Film and television shooting wireless image transmission: no contrast, no harm

    The World Cup in Russia opened last night. It can be said that “all the other people went to the World Cup except the national football team.” Comparing neighboring countries South Korea and Japan, Chinese fans are called “Zhaxin”. The “heart-struck” thing is f...
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  • COFDM technical characteristics

    COFDM technology belongs to Multi-Carrier Modulation (MCM) technology. In some documents, OFDM and MCM are mixed, which is actually not rigorous enough. MCM and COFDM are often used in wireless channels. The difference between them is: COFDM technology specifically refers to the division of chann...
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  • The difference between COFDM and OFDM

    COFDM is coded orthogonal frequency division multiplexing, and OFDM is orthogonal frequency division multiplexing. COFDM is a combination of OFDM and channel coding technology, which can reduce the bit error rate. In the terrestrial digital television transmission standard, Both GB and DVB-T stip...
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  • High-definition intelligent video surveillance solution for substation

    In recent years, the concept of wireless microwave video surveillance and digital substations has been applied in engineering practice. A certain number of digital substations have been built across the country, and digital substation pilot work is also underway. my country’s smart grid research ...
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  • Long-distance wireless video monitoring of ultra-high voltage transmission and transformation lines

    Electricity is an indispensable basic driving force for modernization and is of great significance to the national economy and people’s lives. The high-voltage lines are widely distributed, the overhead lines are long, and they are in open air operation. They are often affected by the surrounding...
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  • Advantages of COFDM wireless video transmission

    In the past, the wireless image transmission was mainly one-way analog TV broadcasting service, and a set of TV programs used a single frequency point. Single-frequency network can improve the utilization rate of frequency resources. However, when TV programs are broadcast at different places wit...
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  • Application of Wireless Microwave Monitoring Equipment in Forest Fire Prevention Monitoring

    The forest fire prevention monitoring system involves the national forest property and the safety of the people’s property. We must take precautions and install cameras in various important areas, and transmit them to the command center through wireless microwave to realize real-time video survei...
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  • Discussion on wireless communication of military private network

       The development of private wireless is very early. It can be said that as soon as wireless technology appeared, private wireless followed. Among the users of private wireless, the army is undoubtedly a big head, which is also the first user to use private wireless. After all, the emergen...
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  • Lightning protection measures for wireless video surveillance solutions

    Wireless microwave equipment and outdoor wireless monitoring equipment are usually located at outdoor high ground, so it is necessary to pay attention to lightning protection. Let’s discuss how to protect such outdoor equipment from lightning. Wireless microwave equipment and outdoor wirele...
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