标签归档 上海龙凤阿拉后花园

A while ago, the school season ushered in.

The "beasts" finally returned to the cage.

However, parents must not relax their vigilance!

Shenzhen CDC issued a reminder:

The high incidence of this virus infection is coming!

You can "put down" a large piece with one hand

Let the children vomit and diarrhea.

That’s right!

It’s what scares many parents.

Norovirus

Some netizens said

Recently, the whole family has been recruited.

▽

What is norovirus?

How to prevent it?

Come and learn with the publisher.

What is norovirus?

Norovirus, formerly known as Norwalk virus, belongs to calicivirus family. The virus has the characteristics of short incubation period, rapid mutation, strong environmental resistance, diverse transmission routes and low infection dose, so it is easy to spread among people.

Everyone is generally susceptible to the virus.

The duration of immune protection after human infection with norovirus is short, so the same person can be repeatedly infected with the same strain or with different types of norovirus.

Norovirus infection can occur all year round, and October to March is the high season of Norovirus epidemic in China. Every 213 years, new strains of norovirus can appear, which cause global epidemic.

What are the main symptoms?

The incubation period of norovirus infection is usually 24-48 hours, with a minimum of 12 hours and a maximum of 72 hours.

Norovirus gastroenteritis is generally mild, the most common symptoms are vomiting and diarrhea, followed by nausea, abdominal pain, headache, fever, chills and muscle aches. The symptoms of norovirus acute gastroenteritis in adults and children are different, with vomiting as the main symptom in children and diarrhea as the main symptom in adults.

Norovirus gastroenteritis is a self-limited disease with acute onset, and most patients can recover within 213 days after onset. But for infants, the elderly, especially those with basic diseases, norovirus gastroenteritis can lead to more serious symptoms such as dehydration.

How should norovirus gastroenteritis be treated?

Norovirus gastroenteritis patients do not need to take antibiotics, but should replenish water in time to prevent dehydration. Oral rehydration salts (ORS) can help patients replenish water and balance electrolytes. When vomiting or diarrhea symptoms are serious, you should seek medical advice in time.

Which routes are susceptible to norovirus infection?

Norovirus is a highly contagious virus, which is mainly transmitted through the faecal route.

The feces and vomit of patients with norovirus gastroenteritis contain a large number of viruses, which can easily cause infection if not handled properly. Inhalation of aerosol produced by patients’ feces or vomit, ingestion of food or water contaminated by feces or vomit, and indirect contact with the surface of environmental objects contaminated by feces or vomit may all cause norovirus infection.

Source: Guangdong CDC

How to prevent norovirus infection?

At present, there are no specific antiviral drugs and vaccines for Norovirus, and its prevention and control mainly adopt non-pharmaceutical preventive measures.

The most important and effective measures to prevent communication

Wash your hands correctly according to the 7-step washing method before and after meals, and wash them with soap and running water for at least 20 seconds. It should be noted that the use of sterilized paper towels and hand sanitizer without washing can not replace hand washing.

Please wash your hands after the following operations: using the bathroom, changing diapers, caring for patients, touching animals or cleaning up animal droppings, handling raw food, wiping your nose, coughing or sneezing, disposing of garbage, taking public transport or using public facilities, etc.

Please wash your hands before preparing or distributing food, eating, taking care of patients, etc.

If a family member is infected with norovirus, the sick family member should try not to have close contact with other healthy family members, especially not to cook or take care of the elderly and infants.

Wash fruits and vegetables carefully and cook food correctly, especially the high-risk food infected with norovirus such as shellfish and seafood should be thoroughly cooked.

Patients with norovirus gastroenteritis should be actively isolated at home until 2 days after the symptoms completely disappear (because patients still have a small amount of detoxification after the symptoms completely disappear) to avoid transmitting the virus to others, especially those engaged in the service industry and collective institutions, such as chefs, nursing workers, school and kindergarten teachers.

In case of Norovirus gastroenteritis aggregation or outbreak, comprehensive disinfection should be done, focusing on disinfection of environmental surfaces, daily necessities, food processing tools, drinking water, etc. contaminated by patients’ vomit, feces and other pollutants, and chlorine-containing disinfectants are the most commonly used.

How to disinfect patients’ vomit and feces?

Use disposable absorbent materials such as gauze and rag dipped with chlorine-containing disinfectant (the concentration of available chlorine is 5000mg/L-10000mg/L) to completely cover the pollutants, and carefully remove them. The cleaned pollutants shall be treated as medical wastes in a centralized way, or soaked in disinfectant containing 5000mg/L of available chlorine for 30min before treatment.

Sufficient chlorine-containing disinfectant (the concentration of available chlorine is 5000mg/L-10000mg/L) can be poured into the toilet for more than 30 minutes.

Tools used in cleaning, such as mops, rags and containers containing pollutants, must be soaked in disinfectant containing 5000mg/L of available chlorine for 30 minutes and then thoroughly rinsed before they can be used again. Mops for cleaning toilets in collective units should be dedicated.

Source: Guangdong CDC

In addition to norovirus,

Previously, Guangdong CDC also reminded everyone.

Next, please focus on the following diseases.

Quickly forward it to the circle of friends.

Remind more people!

Source: Shenzhen CDC, Guangdong CDC, Shenzhen Big Thing.

Editor: Longgang Rongmei (Editor Cheng Jiaxin)

Proofreading: Rollin Wang

remind

Original title: "Shenzhen CDC Emergency Reminder! The high season of this virus infection is coming! 》

Read the original text

It’s been a week since BYD’s national smart driving strategy was released. I think it’s necessary to talk to you again about the significance of this national smart driving release.

First of all, the most important thing BYD did this time was to change the smart driving from high to standard. Moreover, according to the different models and series, we have prepared the ABC scheme of the Eye of God, and there is always one for you.

Let’s talk about the Eye of the God A- Three Aurora Edition: the absolute leading high-level intelligent driving strength, which is currently used in high-end brand-looking. It uses three laser radars, dual Orin X chips, and easy four-way parking, such as some aspects where we usually park manually, which are not easy to park, and can quickly park a good car for you.

Besides, Eye of the God B- Laser Edition: the high-order intelligent driving ability equal to the first echelon in the industry, equipped with laser radar and Orin X chip, can be controlled in both urban navigation and high-speed navigation, and is used in Tengshi and BYD mid-to high-end models, such as BYD Han and Tang high-end versions;

Finally, let’s talk about the Eye of God C- Eye Edition: This is the technical generalization of the model, which BYD did not have on the same price model, and it covers the mainstream models of BYD’s 70,000-200,000 level. It adopts the forward-looking tri-eye 5R12V12U scheme, and supports intelligent driving functions such as high-speed navigation, memory navigation (OTA within 25 years) and parking service, so can you say it’s not fragrant?

What BYD has done is to give technology to Pratt & Whitney, so that owners of more ordinary models can also enjoy the driving convenience brought by smart driving. This time, the equal rights of technology are really materialized.

First, preface: Xiaomi launched a new whole house routing Mesh networking scheme to solve the pain point of signal dead angle.

With the popularity of WiFi 6, more and more families have upgraded their routes just to enjoy the extremely fast networking experience.

However, based on the characteristic that the higher the speed in the 5GHz band, the worse the wall penetration. If the home is loaded with walls, ceilings or floors, the signal loss will be obviously attenuated. For example, if you change rooms, the mobile phone is playing games or brushing videos, there will be obvious jams and disconnections. At this time, you have to use 2.4GHz to connect.

However, 2.4GHz is now in a relatively saturated state, and it has also become the hardest hit area. Bluetooth mouse, Bluetooth headset, smart home, microwave oven and other devices may cause channel congestion.Under such circumstances, the stability performance of 2.4GHz is even worse than that of traffic surfing, and the experience is very worrying.

In fact, in order to achieve the effect of whole house coverage, it is only necessary to build a Mesh network, which is also the most popular whole house coverage scheme at present.

The Xiaomi whole house wireless router received by Fast Technology is the protagonist we want to test.

Mesh, as a complete set of distributed network solutions, is also a solution with low barriers for users to get started. Its advantages are very clear: simple networking, seamless roaming handover, and free addition of sub-routes to realize regional wireless enhancement.

Xiaomi whole house routing supports self-developed Mesh technology, which can be networked by wired, wireless and mixed methods, and can also form a unified whole house network with many Xiaomi /Redmi routers.

In terms of specifications, this router supports WiFi 6 technology, and provides a total of 5 Gigabit wired network ports (4 mother routes and 1 child route), while wireless supports a large bandwidth of 160Hz, with 4 independent antennas, and the maximum theoretical wireless rate of 2.4GHz and 5GHz dual-frequency concurrency is 2976Mbps.

The positioning of Xiaomi’s whole house routing is an entry-level WiFi 6 router. This configuration can be said to be full of sincerity.

Next, let’s take a look at the performance of this Xiaomi whole house route in terms of signal, coverage and experience.

Second, the appearance: pure white appearance, fashion and simplicity, and all the mother and son routes have built-in four antennas.

Xiaomi’s whole house routing adopts mother-child design, all of which are pure white+square shape, which continues Xiaomi’s simple but not simple design as always.

The bus route with a slightly larger size is 89.5 × 89.5 × 213.5 mm; The child routing size is 89.5×89.5×153.7, which is slightly smaller.

This sub-and-bus route has built-in four antennas, which all use 1GHz CPU and 256MB memory, and all support 2×2 2.4GHz Wi-Fi and 2×2 160MHz 5GHz Wi-Fi.

After being powered on, the 1 mother and 1 child can automatically network in 0 steps, which greatly reduces the trouble for users to manually change the configuration.

The above picture shows the sign of NFC on the top of the parent route, but unfortunately the child router (below) is not equipped with NFC function.

Guests at home need to connect to WiFi, and they can connect to the Internet through NFC at the touch of a supported mobile phone. Even if you forget your password, you don’t have to worry, which saves the trouble of asking.

Xiaomi Mesh WiFi6 is printed on the bottom, indicating that Xiaomi’s self-developed Mesh intelligent connectivity function is supported, and multiple networks can be established by wired, wireless and mixed methods.

Even for complex apartment types, only one parent route is needed to connect 9 sets of routes, and it is easy to set up a whole-house network to achieve whole-house coverage.

A list of interfaces of the parent route, including Mesh (short press)/Reset (long press) button, four adaptive WAN/LAN ports with 1Gbps rate, and power interface.

The interfaces of sub-routes are relatively simple, including Mesh (short press)/Reset (long press) button, a 1Gbps WAN/LAN adaptive network port and power interface.

The network port can be connected to the parent routing network port or lower-level computer equipment, which is convenient for users to expand the use scenarios of different rooms.

Charging port, instruction manual and network cable of the sub-bus route attached in the package.

3. Mesh networking and speed transmission test: In the 5G band, there is also 316Mbps at the far end of the whole house without inductive switching.

Xiaomi’s whole house routing supports 3000M wireless rate, that is, from 2.4G band with 574Mbps rate and 5G band with 2.4Gbps rate, reaching a total rate of 2976Mbps.

Moreover, one parent route and one child route are respectively equipped with four external signal amplifiers, that is, a total of eight external signal amplifiers.

The maximum number of connections can support 256 WiFi devices and 200 Bluetooth devices, which is more than enough for ordinary houses.

The environment we tested is an office, with an area of about 300~400 square meters, which is at least twice as large as the conventional residential environment.

The red dot is the installation position of the parent-child route, and the distance between them is about 8 meters, and the black dot is the test position.

Let’s take a look at the performance of Xiaomi’s whole house wireless routing.

1. Roaming test

Xiaomi wireless routing supports Mesh networking, which is very simple to get started. Just enter the gateway address of the parent route and manually complete the routing configuration, and it can automatically complete Mesh networking.

This process is very insensitive, and it can be easily completed if you want to network in different ways, such as wired, wireless and mixed.

If it only covers the whole house, it is suggested that the location of the parent route should be fixed first, and then the child route should be placed in the dead corner of the signal after the networking mode is set, thus completing the network coverage of the whole house.

Moreover, the bus route can be connected with up to 9 sets of routes, and even if there are more walls and more complicated apartment types, it can achieve a smooth connection experience without dead ends.

We also tested the signal strength of roaming and walked around the office randomly.

The signal strength of the slave route reached 57dB before the automatic switching roaming.

After automatic switching to the sub-route, the signal strength is further reduced to 36dBm, and the average delay is about 24 ms.

This process is basically non-inductive, avoiding the problem of attenuation of 5GHz WiFi+WiFi 6, and making the whole house available.

If there are high requirements for signal strength and transmission speed, more sub-routes can be set, which can make the signals in all rooms basically reach a very good level.

— — transmission speed

Xiaomi Wireless Routing makes the antenna into a built-in antenna, so what about its signal, intensity and transmission rate in different environments? Let’s directly measure its performance.

The PC used for testing is also in the test point 1 position with the parent route.

At this time, the PC device is in a wired 1000Mbps link, the wireless rate of the mobile phone is 2.4Gbps, and the signal strength is -19dBm.

In 10 seconds, 1.1GB of data was transmitted to the PC, and the highest speed reached 944Mbps, which can be regarded as gigabit full of blood.

When both PC and mobile phone are wireless, at test point 1, the handshake rate of PC is 2.4Gbps, that of mobile phone is 2.4Gbps, and the signal strength is -21dBm.

In the pure wireless environment, it is very easy to be disturbed by the environment, but the mobile phone transmits 608MB of data to the PC within 10 seconds, and the speed is about 510Mb/s, which is still very ideal.

At this point, we separated a wall at test point 2, the handshake rate was 2.4Gbps, and the signal strength was obviously blocked, reaching -49dBm.

Within 10 seconds, the mobile phone transmitted 552MB of data to the PC, and the maximum speed was about 463Mbps, so the loss was not too obvious.

At test point 3, the handshake rate of the mobile phone dropped to 1152Mbps, and the signal strength was -56dBm.

Within 10 seconds, the mobile phone transmitted the maximum data of 377MB to the PC, and the maximum speed was about 316Mbps.

At test point 4, the child route is connected at this position, but the distance from the parent route is long, at least about 10 meters.

Handshaking rate of mobile phone is 2.4Gbps, and signal strength is -42dBm.

Within 10 seconds, the mobile phone transmitted the maximum data of 412MB to the PC, and the maximum speed was about 347Mbps.

The following figure is a summary of the table:

Fourth, summary: only 499 yuan can cover the best choice of the same price in the whole house.

1. Entry level also has excellent experience. Mesh realizes 5G+WiFi 6 coverage of the whole house.

This whole house wireless routing brought by Xiaomi, although it focuses on entry-level Mesh routing, has achieved the best existence in the same price range while focusing on affordable prices.

We actually measured this route. Although the antenna is built in, the coverage rate is not compromised. In a room of 300~400㎡, the basic coverage can be achieved by only one parent route and one child route. The wall-crossing experience is also excellent, and the signal strength is also very ideal.

If you encounter a residential environment with a slightly larger area and more walls, it is recommended to put a sub-route in one room conditionally, so that the whole house can enjoy the carefree experience brought by 5GHz WiFi+WiFi 6 and bid farewell to the signal dead angle completely.

Thanks to the characteristics of wireless roaming, you can play games and watch videos in any room, without worrying about dropped calls and jams caused by node switching.

2. The small functions of secret-free network access and secret-changing synchronization are very worry-free, which adds extra points to Mijia ecology.

With more and more ecological products of Xiaomi, this router also has unique functions that are different from other routers.

For example, smart devices that are not connected to the network are exempt from encryption, and all smart homes are directly synchronized.Although it looks unremarkable, if you encounter a lot of smart homes, you have to reconnect after changing the hot password. I believe this workload is very headache.

Although these functions are insensitive, they can’t be without them, which makes users worry enough about their daily use and adds a lot of points to the ecological experience of Mijia.

There are also these features of NFC, which can connect with friends and relatives at home, and you can connect to the internet with a touch of your mobile phone, avoiding the embarrassment of remembering your password.

It can be said that Xiaomi has achieved the experience of "no one has me, and people have me" in these small functions.

3, the most competitive price of the same kind is only 499 yuan.

The most eye-catching thing is its price.Some e-commerce companies have killed the starting price to around 499 yuan.We must know that the cheapest e-commerce can buy in the market is around 599 yuan. Xiaomi once again shows the true nature of "price butcher" and gives full play to its very strong competitiveness.

If you want to experience the carefree experience of full-house coverage without dead ends, or have a headache about large-sized network coverage and don’t know how to choose, and the budget is not high, then I think this millet full-house routing is your best choice.