The main function of the set-top box is to watch live TV, video-on-demand, and play games, listen to music, and install various software. For users who like to watch TV, the experience of the set-top box is very important. Whether it is the smoothness of the TV, the application content of the set-top box, or even the security of electricity and radiation, the requirements for the set-top box are inseparable from users.
On November 20th, the official website of the Shanghai Bureau of Quality Supervision released the result of 2017 Shanghai STB product quality supervision and spot checks. The results showed that 22 batches of products were spot checked. After testing, 3 batches of products failed.
Spot check found that the "MERCURY" network player M1 model produced by Shenzhen Meikexing Communication Technology Co., Ltd. and the "Tmall Box" M16C model and the 1905 interaction produced by Zhejiang Tmall Supply Chain Management Co., Ltd. (Beijing) ) The "1905 movie box" XC-FBY1 model produced by Technology Co., Ltd. was found to have failed the radiation harassment below 1 GHz.
2017 Shanghai top-end box product quality supervision and inspection unqualified products
TV set-top boxes are listed in the National Compulsory Certification Products (CCC) catalog and have strict quality management requirements. Among them, radiation disturbance mainly refers to the phenomenon that energy is emitted from the source to space in the form of electromagnetic waves, or energy is transmitted in the form of electromagnetic waves in space. Excessive radiation disturbances often affect electronic products connected to or on the same network and interfere with their normal operation.
However, consumers need not worry that these products will have a serious impact on human health. According to experts from the Shanghai Institute of Metrology and Measurement Technology, these products are unqualified in the “radiative harassment†project, which is mainly caused by electromagnetic interference with the normal operation of other equipment, and its level is usually much lower than the level that may be associated with human health. .
The basis for this supervision and inspection is:
GB 4943.1-2011 Information technology equipment safety - Part 1: General requirements
GB/T 9254-2008 Radio disturbance limits and measurement methods for information technology equipment
GB 8898-2011 Audio, Video and Similar Electronic Equipment Safety Requirements
GB/T Limits and methods of radio disturbance characteristics of sound and television broadcast receivers and related equipment
GB 17625.1-2012 Electromagnetic compatibility limit harmonic current emission limit (equipment input current per phase ≤ 16A)
GB Digital television receiver (set-top box) energy efficiency limit and energy efficiency rating
Related laws and regulations, departmental rules and regulations
Digital TV receiver energy efficiency logo implementation rules
After the filing of the current effective corporate standards and product quality requirements
The items of supervision and spot checks:
Structural requirements for protection against electric shock, shock hazard under normal working conditions, surge test, insulation resistance, electrical strength, clearance and creepage distance, plugs and sockets, protective earthing measures, power supply disturbance voltage, antenna end disturbance voltage , Radiator, Conducted common mode disturbance of telecommunication port, Working state power, Passive standby power, Grounding conductor and its connected resistance, Contact current and protective conductor current, Radiated disturbance below 1GHz, Radiated disturbance above 1GHz, Harmonic current, Harassment Power and other 3C mandatory safety, electromagnetic compatibility, energy efficiency rating items.
So, which set-top box products can we use with confidence?
Shanghai 2017 Top-Set Box Product Quality Supervision and Inspection Checked Items in Accordance with Related Standards
1, buy some of the more well-known brands, whether it is after-sales or maintenance will be guaranteed, and the quality will be relatively high.
2, can not buy single and dual-core configuration set-top boxes, set-top boxes are currently equipped with low-power four-core configuration, otherwise it will be very card.
3, pay attention to refurbished machines, try not to Taobao, some private shops to buy, not easy to be protected, it is best to buy in the official store.
4, operating system, the current mainstream is the Android system box, most of the software supports Android system. If it is a box of other systems, you have to worry about what software you can use.
5, set-top boxes try to find a large storage space, good storage capacity, the current mainstream of the market are 1G storage, 2G even if the transport is relatively large.
6. The pre-caching capability of the STB network is also more important. The video is preloaded for a period of time before it is started. This will ensure that friends who are unstable on the network will not watch the program nor will they get stuck.
Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, TV boxes, smart TVs, smart TV software, etc. Answering questions.
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