"Digitization" open door "recall"

"Digitization" open "recall door" Beijing News weekly, the new knowledge for some time, "recalls door" such as computer viruses spread panic spread like the Earth markets, loss of astonishing. "Digital penetration to the cult" has long been a community of bone marrow, the film "2012" Uncle "Yuri" voice start car, or the Tiger tank longwei the fourth Department of hacker guy cheated kaibaoma car remote start system plots are not rare. Auto complete electronic "peaceful evolution", it is far from the brunt of a double-edged sword. From 1880 to 1919, a new technology from invention to the business cycle as long as 30 years, but this time period is shortened to just 5 years. "Moore's law" as a containment of the spell, and just replace the piano, electronic organ DC supersedes the film machine. Sensors and software to achieve control logic than traditional mechanical control means more flexible way out, this is a good thing, but the lack of sufficient time to verify that the software has further increased the complexity, unexpected risks attendant also increased significantly. United States aviation space agency (NASA) have a "MARS" spaceship, experienced several years of interstellar voyage, ready for the first time on the surface of Mars landing. This sophisticated unmanned landing vehicle control system using a soft landing, decelerating rocket in the Mars atmosphere side drop edge speed. Once the ship three feet are touching the surface of Mars, the software will automatically close 50 milliseconds to achieve perfect speed rocket soft landing. But the "MARS" in to the distance of the Mars surface 40 meters, everything Cup with the sensor, the positives that the spacecraft has control system for steady ground, so the instruction immediately close the deceleration of the rocket, losing momentum in the spacecraft from nearly ten stories high into the air, free fall on Mars first bunch of e-waste. United States also has a Mars probe crashes, and flight control software in metric and inch size confusion caused flight track anomalies. To high technology and high reliability for its aerospace, computer control system caused by accident, but not uncommon, the most famous are the 1996 France "Ariane 5 rocket" for flight control software float overflow error crash several accidents. Aviation is also a large disaster control system. Modern high-performance combat aircraft for high mobility, most used digital fly-by-wire system and unstable design replaces the previous mechanical manipulation and conventional design, the flight control system in pilot nose real-time acquisition of various types of status information on the various control surfaces of an aircraft, engine, etc for uninterrupted ingenious calibration and manipulation, once the flight control system, the "problems of cerebellar", you can easily manipulate the actions occurred inexplicable crashes, the pilot did not approach to intervene made back. Some famous modern fighters such as the f-22, United States, Sweden's F-35 JAS-39 "yingshi" has had a similar accident. The 2008 United States a B-2 bomber crashed near Guam, it is also a control system sensor failure, flight control software on the balance of an aircraft results in loss of judgment. Western fighter performance improvement and upgrade, a very important part of the work is carried out on a flight control software version upgrades, improved aircraft rapidly from out of State recovery capacity — of course, these details are always highly confidential, will not be like the "recall" the talk of the door. Modern car universal digital, with plenty of sensors and software to replace previous machinery control system functionality, advanced car about a third of the costs for electronic components and software. These digital systems fully taken over and precisely control the engine, suspension and braking systems, the driver's seat on the brake, throttle and gear handle is just another form of mouse and keyboard. But subtle electronic system in the event of failure, but than old-fashioned mechanical systems are difficult to diagnose and troubleshoot. While manufacturers follow to maximize the benefits to be immature, lack of adequate safety test and test new technology widely used in new models on the market, contribute to the probability of accidents. In order to reduce costs, large manufacturers commonly adopted standard components and modular technology, so that the same defects as the virus spread to different series of models. Clearly, digital auto security rely solely on traditional collision test such passive safety test is not enough. The "back door" exposed the serious crisis in the automotive industry software tip of the iceberg. You can imagine the future of the automobile as commercial software, there is a version difference, patches and upgrades. Zhibuding which day you on the road on the open would have encountered a BUG, or even lead to panic. □ Wangxiaoyun (Beijing military researchers)