Yangzi smart home will pay attention to the offici

2022-07-22
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Because the quality of smart locks is related to the safety of every household, the safety of smart locks has always been the focus of consumers

with the popularity of smart home in recent years, the sales of smart locks, as smart home entry products, have been rising. With the increase of sales of smart locks, more and more manufacturers have entered the smart lock industry. Because the quality of smart locks is related to the safety of every household, the safety of smart locks has always been the focus of consumers

in order to let consumers know the quality and safety of smart door locks sold on the market, the China Consumer Association, in conjunction with the Sichuan Provincial Commission for the protection of consumer rights and interests, the Shenzhen Consumer Commission, and the Foshan Consumer Commission, carried out comparative tests on some smart door lock products on mainstream network platforms and offline physical stores

the samples of 29 smart door locks in this comparative test are all products with high consumer attention and brand awareness, and the sales volume of the network platform is in the forefront. The staff of the Consumer Association simulated the purchase of ordinary consumers. Among them, 22 models are purchased from online platforms and 7 samples are purchased from physical stores. The price of the sample lock ranges from 1099 yuan to 5899 yuan per set, with a large price difference

this comparative test mainly involves the following aspects:

first, information security

the items of this test mainly include electromagnetic error injection (small black box attack), unlocking method detection, personal information security protection, etc

according to the official test, only one of the 29 locks was opened by a small black box. Among the 29 samples, 48.3% of the samples had security risks when the password was opened, 50% of the samples had security risks when the fingerprint identification was opened, and 85.7% of the samples had security risks when the information identification card was opened

but we consumers don't have to worry too much. Through the feedback from the sample manufacturer, we learned that the encryption of information identification card can effectively solve the security problem of information identification card. Upgrading the system and algorithm can solve the security problem of password and fingerprint identification

consumers are paying more and more attention to the protection of personal information, so this time the information security of the samples has also been tested. Including information leakage, identity authentication, authority control, data transmission security and other four contents. After testing, the authorization function, storage and query function, illegal operation alarm function and other items of the 29 sample locks have no problems, and can be safely used

II. Mechanical safety

according to the requirements of the national mandatory standard gb21556-2008 general technical conditions for lock safety for class a locks, the length of the latch of 29 sample locks meets the requirements (greater than or equal to 20 mm), but the strength of the latch is only 12 sample locks meet the requirements

according to the national mandatory standard gb21556-2008 general technical conditions for lock safety, the lock can still be used normally after sine vibration, impact and drop tests. The 28 samples can be opened normally after the test, and only one smart lock sample can be used normally because the keyboard light flashes continuously after the impact test

according to the national mandatory standard gb21556-2008 general technical conditions for lock safety, the service life of smart door locks should not be less than 3000 times. If you open and close the door 10 times a day, it can only be used for 300 days, which obviously cannot meet consumers' expectations for the service life of smart door locks. Therefore, this test will increase the number of tests to 10000. The test results showed that after 3000 times of repeated opening and closing specified in the standard, the test continued until the total number of repeated opening and closing was 10000, and no abnormality occurred in 29 samples

III. power battery

according to the relevant requirements for power performance in gb21556-2008 general technical conditions for lock safety, the battery capacity, power adaptability and undervoltage indication of 27 sample lock power supplies can ensure the normal use of samples. Only one of the two sample locks has no undervoltage indication function, which may lead to the user's failure to open the smart lock because the battery is not replaced in time

according to the test requirements of gb31241-2014 lithium ion batteries and battery packs for portable electronic products, the (lithium) batteries (packs) of 29 smart door locks are subjected to accelerated impact tests, and the samples are free from fire, explosion and liquid leakage

the 29 samples in this comparative test are all equipped with an emergency power interface, and the 16 samples are also equipped with a standby power supply, effectively extending the endurance of the product. When the battery runs out (or other battery faults), the use of external power supply can also provide emergency power for the product, so as to prevent the door lock from being opened due to battery problems

through the above comparative tests, we can see that at present, as long as the smart lock is purchased from formal channels, the quality is still guaranteed. At the same time, we can combine our actual needs in the purchase of functions. Don't blindly pursue multiple functions. What suits us is the best

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