On April 27th, according to the latest data released by the US authoritative magazine Consumer Report, the Tesla Model S electric car has lost its safest position in the category of “ultra-luxury car†because it is not equipped with emergency braking function. The title of the car. Previously, Tesla had promised users that the "emergency braking" function is the most basic configuration of the Model S. However, according to reports, the Tesla Model S is not equipped with this feature. In this case, the report evaluation shows that the safety of the Model S has now fallen to third place. The top two are the Lexus LS and the BMW 7 Series. Tesla issued a statement saying that since Tuesday, it has begun to provide automatic emergency braking through software updates. Last week, Tesla also announced the recall of 53,000 Model S and Model X electric vehicles to repair a parking brake problem. In addition, Tesla also made some configuration and price adjustments for Model S and Model X on Tuesday. Both models have canceled the 60 series, and the price has dropped by 0.98-9.5%. After adjustment, the price of Tesla MODEL S is 723,500 yuan -1,399,800 yuan; the price of Tesla MODEL X is 87.39 million yuan - 1.5027 million yuan. According to reports, the Model S produced before October 2016, Tesla has been equipped with automatic emergency braking. Tesla said that the Model S that was later produced was not equipped with this feature because of software issues that caused delays. In the next four years, many automakers have indicated that they will be equipped with standard automatic emergency braking functions for their best-selling models. The Consumer Report also stated that once Tesla equipped all Model S with automatic emergency braking, The reliability will be re-evaluated. Dual frequency band refers to the characteristic that the same communication device can work in two frequency bands. There are many applications, such as dual-band routers. A dual-band router refers to a router that supports two channels, one 2.4G channel and one 5G channel. Generally, routers are designed to be 2.4GHZ, so there will be mutual interference between signals in the same area. At this time, if you choose the 5.GHZ frequency band mode, it will effectively avoid signal interference in these frequency bands, and wireless signals will be transmitted accordingly. farther. 5.0G WIFI XPON ONU, 2.4G+5.0G WIFI XPON ONU, WIFI XPON ONU with 2.4G and 5.0G, XPON ONU with Dual Band, Dual Band WIFI XPON ONU Shenzhen GL-COM Technology CO.,LTD. , https://www.szglcom.com
ONU (Optical Network Unit) optical network unit, ONU is divided into active optical network unit and passive optical network unit. Generally, devices equipped with network monitoring including optical receivers, upstream optical transmitters, and multiple bridge amplifiers are called optical nodes. The PON uses a single optical fiber to connect to the OLT, and then the OLT connects to the ONU. ONU provides services such as data, IPTV (i.e. interactive network television), and voice (using IAD, i.e. Integrated Access Device), truly realizing "triple-play" applications. The ONU has two functions: it selectively receives the broadcast sent by the OLT, and responds to the OLT if the data needs to be received; collects and buffers the Ethernet data that the user needs to send, and sends it to the OLT according to the assigned sending window The end sends the buffered data. The application of ONU can effectively improve the uplink bandwidth utilization of the entire system, and it can also configure the channel bandwidth according to the network application environment and applicable service characteristics to carry as many end users as possible without affecting the communication efficiency and communication quality, and improve the network utilization Rate and reduce user costs.