Uber plans to acquire Luxe, a parking service startup.

According to informed sources, Uber is negotiating an acquisition with Luxe, a startup company, with the main target of talents and technology, and the negotiations have entered the final stage.

Luxe, which originally provided users with on-demand door-to-door service in parking service, was called "Uber for parking". Luxe service personnel usually wear blue jackets and ride scooters. After that, Luxe set up Luxe’s own parking station.

However, in April this year, it was announced to users that the service would stop on May 25th, indicating that business transformation was about to take place. According to the Wall Street Journal, Luxe also developed a short-term car rental technology, which was related to the service of Hertz, its largest shareholder car rental company, but was later stopped because the CEO of Hertz stepped down.

In the first half of last year, Luxe completed a $50 million Series B financing, which was led by the car rental company Hertz, followed by Redpoint Ventures and Venrock. Up to now, the company has received a total investment of 75 million US dollars.

This is a struggling company, and the new business transformation has not yet been completed. It has been reported recently that the company has been unable to establish a sustainable growth business model, partly because of the expensive garage contract.

Luxe was founded in 2013, and its headquarters is only three minutes’ drive from Uber’s headquarters in San Francisco, with a total of 60 people, excluding parking service business staff.

According to the Luxe CEO Curtis Lee, CEO of Luxe, will not join Uber, but may keep the brand and some technologies of Luxe and continue to promote the business transformation of Luxe.

Neither company has responded yet.

Uber has received $15 billion in financing, and of course, a large part of it has also been burned, and there are not many acquisitions. In 2016, it bought Otto, an autonomous driving company, for about $680 million, and acquired Geometric Intelligence, an AI company, for an undisclosed amount. Before that, in 2014, Uber acquired some assets of map startup deCarta and Microsoft Bing map service.

Xiaomi SU7 went through a severe winter test: the whole vehicle was frozen for more than 24 hours to test the charging performance.

Fast Technology reported on February 8 that Xiaomi founder Lei Jun shared the winter test video of Xiaomi SU7 in Heihe River. In the cold Heihe River, Xiaomi SU7 experienced severe tests again and again.

According to Xiaomi’s engineer, in order to test the charging performance of Xiaomi SU7 in low temperature scene, the engineer put Xiaomi SU7 outdoors for more than 24 hours.

At the same time, the thermal management of Xiaomi SU7 continues to be polished and upgraded, and the maximum heating power given to the battery can reach 18kW in extreme cold, which is twice the industry average.

More importantly, Xiaomi SU7 has the unique technology of "millet high-efficiency dual-mode heat pump" in the industry. This innovative technology integrates the step-by-step heating mechanism of three heat sources, and realizes the optimal temperature control management of the interior temperature and battery pack by efficiently recovering and converting the environmental heat, the afterheat of the driving system and the energy generated by the battery itself.

With this technology, Xiaomi SU7 can effectively resist the influence of low temperature environment on battery efficiency. Under the extreme conditions of MINUS 30 degrees Celsius, the vehicle can still maintain a high cruising range retention rate, which solves the core problem of the sudden drop of electric vehicle endurance in winter.

In addition, the efficient thermal management system also enables Xiaomi SU7 to achieve a faster charging speed in a low temperature environment, further enhancing the user’s car experience in cold seasons.

In this way, whether it is the snow and ice in the north or the wet and cold weather in the south, Xiaomi SU7 can easily cope with it and truly bring electric vehicles into a new era suitable for all seasons.

Guangdong Mobile teamed up with the police to use big data to accurately attack pseudo base stations.

  Core reading

  The pseudo base station is called by everyone, but how can it show its original shape? Guangdong Mobile uses big data to deploy tight encirclement. According to the cell phone signal data, timely warning; End, tube and cloud data linkage to accurately identify pseudo base station short messages; Cooperate with the police to locate the attack. The data shows that the activity of pseudo base stations has dropped significantly.

  "Dear users, hello. You get the discount of sending 50 yuan to 100 yuan. Click wap.××××××.com to recharge, which is limited to this machine. China Mobile. " Seeing this message from "10086", Zhang Xuewei hesitated and felt that the recharge website was suspicious. Fortunately, another early warning message from China Mobile came immediately, reminding him that he might have been attacked by a pseudo base station just now.

  As a common tool of criminals, the harm of pseudo base stations has attracted the attention of the whole society. If you impersonate a bank to send a short message with a virus link, once the user clicks on the link, it will lead to cell phone poisoning, privacy information being stolen, and then property losses will be caused.

  Zhang Xuewei is located in Foshan, Guangdong Province. This time, he accepted the free early warning service of pseudo base stations independently developed by Guangdong Mobile based on big data. The service was piloted in Foshan, Jieyang and Chaozhou at the beginning of November last year, and so far more than 600,000 users have been reminded.

  Use signal data to see through pseudo base stations and give early warning in time.

  Normal base station: "Where does your signal come from?"

  Mobile phone: "I came from a base station."

  Normal base station: "No, I don’t even know this guy. It’s definitely not ours ‘ Little friend ’ !”

  The normal base station keenly found that the mobile phone had been held by a pseudo base station, so it reported it to the network system.

  When Zhang Xuewei received the fraudulent short message, the above "conversation" started between the normal base station and his mobile phone.

  Pseudo base station is an illegal device that does not access the operator’s network, and it can simulate any number to send illegal short messages. "It’s a base station, but there are actually two small boxes." Along the direction of Liu Shaocong’s finger in Guangdong Mobile Wireless Optimization Center, two "iron boxes" are lying on the table, one is smaller than the computer case, and the other is only the size of a shoe box.

  At present, the pseudo base station technology and price threshold are very low. Moreover, as the volume shrinks, the forms of crime are more diverse: some throw pseudo base stations next to roadside garbage bins; Some put it in their backpacks and get on the bus to move and signal; And hire someone else to carry it, hide in the dark and send it remotely with a mobile phone … …

  However, "no matter how cunning a fox is, it can’t fool a good hunter." Pseudo-base stations switch mobile phone signals with stronger power, which also becomes a breakthrough for technicians to detect pseudo-base stations. Simply put, when a mobile phone that has been held hostage by a pseudo base station signal is reconnected to the normal base station network, it will bring the relevant signal data of the pseudo base station.

  "At this time, big data will come in handy." Liu Shaocong said that the abnormal signaling found by the normal base station will be uploaded to the network and compared with a large number of normal signaling, and finally it is determined that this unknown guy is a "bad guy." Then, an early warning message will be sent to the user’s mobile phone.

  End, pipe and cloud data linkage, accurate identification

  Pseudo base stations can change their numbers at will. In a bunch of normal short messages, how can we find out the fraudulent information at once?

  Xu Jiajun, who works in Guangdong Mobile Network Management Center, took out a mobile phone with an APP application — — Safety pioneer. With the captured pseudo base station, he sent a test message; Then, open the security pioneer and click "pseudo base station identification". In less than 30 seconds, a short message "stands out" from hundreds of short messages in the inbox. At first glance, it is the one just sent.

  This self-developed "pseudo base station SMS identification technology" is also based on big data. Collect short message features through the mobile phone terminal, compare them with a large number of short message features of pseudo base stations stored in the cloud library, and check the transmission pipeline at the same time. Generally speaking, whether a mobile user sends or receives a short message, it is recorded in the short message center. If it is not recorded and matches the above characteristics, it can basically be judged as a pseudo base station message.

  This big data identification technology, which adopts the linkage of end, pipe and cloud, can identify the short messages of pseudo base stations in the province’s ports. The advantage of security pioneer lies in not only the data of mobile phone terminal, but also the data of short message transmission pipeline.

  Real-time calculation, with the police positioning strike

  "There is pseudo base station activity near Chebei subway station in Tianhe District". According to the monitoring of Guangzhou Mobile, technicians immediately rushed to the scene to track with instruments.

  A man riding an electric car came into sight. At first glance, his dress is no different from that of ordinary food delivery staff, but this disguise can’t escape the "eye-catching" of technicians. After the alarm, the public security personnel quickly arrived to control the man and seized a set of pseudo base station equipment from the disguised takeaway box on the spot.

  Here, the "golden eye" is the "pseudo base station detection and tracking system". "Big data detection, early warning and accurate identification, if only used to remind users ‘ Don’t be fooled ’ The intensity of cracking down on pseudo base stations is undoubtedly greatly reduced. We not only passively prevent, but also take the initiative to cooperate with the public security organs to pull out the pseudo base station. " Kang Yong, the security director of Guangzhou Mobile who is responsible for the pseudo base station attack, said.

  On the basis of detecting and warning short messages from pseudo base stations, the system performs big data processing to lock a large area where a user’s mobile phone is attacked by pseudo base stations at the same time or continuously; Then analyze the location and moving path of each mobile phone and calculate the accurate location of the pseudo base station.

  "The current pseudo base stations are often in motion, which requires higher real-time computing power for big data." Liu Shaocong revealed that with advanced positioning technology, the positioning accuracy of pseudo base stations can be controlled at around 100 meters.

  In the current high-pressure situation of cracking down on telecommunication network fraud, Guangzhou police have treated the pseudo base station case as a major warning and established a linkage mechanism with Guangzhou Mobile. Once the location of the pseudo base station was located in the system, the police immediately dispatched police forces nearby to jointly attack with the road patrol personnel sent by Mobile. As soon as the suspect is identified, arrest him immediately.

  Since 2015, Guangdong Mobile has cooperated with public security organs to crack 818 cases of pseudo base stations, arrested 1,095 suspects, seized 985 sets of pseudo base station equipment and 456 vehicles, which effectively shocked the illegal and criminal activities of pseudo base stations. According to the relevant network data of Guangdong Mobile, the number of abnormal registration location updates caused by pseudo base stations decreased by 57% year-on-year, indicating that the activity of pseudo base stations decreased significantly.

[Video] Sitting Volleyball

Enter the [Chinese world] > >

    CCTV News (Chinese World): In one of the 20 events of the Beijing Paralympic Games, all athletes sit on the ground to compete, which is sitting volleyball. Sitting volleyball originated in the Netherlands in 1956. In 1980, men’s sitting volleyball first entered the Paralympic Games as an official event. At the 12th Paralympic Games held in Athens in 2004, women’s sitting volleyball was listed as an official event, and China won the championship in one fell swoop. Let’s take a look at sitting volleyball.


    The sitting volleyball competition in Paralympic Games is basically the same as that in Olympic Games, but the difference is that athletes need to sit on the floor to compete, and the venue is smaller than that in Olympic Games.


      Project setting


    There are men’s and women’s volleyball competitions in Beijing Paralympic Games, which are divided into four stages: preliminaries, qualifying, semi-finals and finals. The sitting volleyball competition of Beijing Paralympic Games will be held in the gymnasium of China Agricultural University from September 7 to 15, 2008.


      Athlete classification


    The players who take part in the sitting volleyball competition in the Paralympic Games are composed of amputees, cerebral palsy, spinal cord injuries and other physical disabilities, among which amputees are the main ones. Athletes participating in the competition must first meet the minimum grading standard of physical disability. According to the sitting volleyball rules, at most one of the six players on the field has reached the minimum grading standard.


     Venue equipment


    The paralympic sitting volleyball competition venue is divided into competition area and barrier-free area with two different colors. The playing field is a rectangle of 10m× 6m, and the center line connects the ends of two sideline lines on the Internet. This sideline line divides the playing field into two equal playing fields, and each playing field has an attack line 2m away from the center line to mark the frontcourt area. The barrier-free area outside the sideline line of the playing field is at least 4m wide, and the width outside the end line is at least 6m wide. The barrier-free space above the competition venue must be at least 10 meters high, and the ground of the venue must be flat, and there must be no hidden dangers that may hurt the players. All the boundaries in the field are white, with a width of 5 cm. The two net posts are at the center line and fixed at least 1 meter away from the sideline. The height of the net is 1.15m for men and 1.05m for women. Paralympics sitting volleyball ball specifications are the same as Olympic volleyball. Athletes are allowed to wear trousers and shorts, and they can wear bandages, but they are not allowed to wear thick sports trousers or shorts, and the styles of the whole team must be consistent.


       game


    Paralympics sitting volleyball is a team event, which basically follows the rules of perfect volleyball, but there are some special provisions. The six players on each team must sit on the court to play the game. During the game, the defender can directly intercept the serve. There are also some special regulations about hips off the ground. During the competition, athletes’ hips must keep in contact with the ground, and they are not allowed to stand and walk. When serving, hitting, blocking and attacking shots, their hips are not allowed to lift off the ground. Defenders can lift off for a short time when saving a ball that is far away. As long as it does not interfere with the opponent’s game, the legs or feet of the players are allowed to cross the center line, but they should be taken back to the field immediately.


    Before the start of the sitting volleyball competition, the athletes will enter the stadium collectively and salute the audience, which is a sign of respect for the audience, and the audience should also respond to the athletes with warm applause. Appreciating the sitting volleyball match requires the audience to treat the special rules of the court with an understanding attitude because of the particularity of the objective existence. Angels with broken wings can also fly. Disabled athletes overcome their physical defects with tenacious perseverance and bring us beautiful enjoyment. Let’s give them the warmest applause for their wonderful performance.

Editor: Hu Wei?

National Bureau of Statistics: From January to March, the national real estate development investment decreased by 5.8% year-on-year.

  CCTV News:According to the website of the National Bureau of Statistics, on April 18th, the National Bureau of Statistics released the 2023 1-mdash; The basic situation of the national real estate market in March.

I. Completion of investment in real estate development

  1— In March, the national real estate development investment was 2,597.4 billion yuan, down 5.8% year-on-year; Among them, residential investment was 1,976.7 billion yuan, down 4.1%.

  1— In March, the housing construction area of real estate development enterprises was 7,645.77 million square meters, down 5.2% year-on-year. Among them, the residential construction area was 5,382.14 million square meters, down 5.4%. The newly started building area was 241.21 million square meters, down by 19.2%. Among them, the newly started residential area was 177.19 million square meters, down by 17.8%. The completed housing area was 194.22 million square meters, an increase of 14.7%. Among them, the completed residential area was 143.96 million square meters, an increase of 16.8%.

  Second, the sale and sale of commercial housing

  1— In March, the sales area of commercial housing was 299.46 million square meters, down 1.8% year-on-year, of which the sales area of residential housing increased by 1.4%. The sales of commercial housing reached 3,054.5 billion yuan, up by 4.1%, of which the sales of houses increased by 7.1%.

  At the end of March, the area of commercial housing for sale was 647.7 million square meters, a year-on-year increase of 15.4%. Among them, the residential area for sale increased by 15.5%.

  Three, the real estate development enterprise funds in place

  1— In March, real estate development enterprises received 3,470.8 billion yuan in funds, down 9.0% year-on-year. Among them, domestic loans were 499.5 billion yuan, down 9.6%; The utilization of foreign capital was 800 million yuan, down by 22.7%; Self-raised funds were 1,017.1 billion yuan, down by 17.9%; Deposits and advance receipts were 1,190.9 billion yuan, down 2.8%; Personal mortgage loans reached 618.8 billion yuan, down 2.9%.

  Fourth, the real estate development boom index

  In March, the real estate development boom index (referred to as "national housing boom index") was 94.71.