德国铁路公司将试用无人机监控涂鸦行为
<p>德国铁路公司计划于近期在各铁路站点区域试飞配备了红外相机的无人机，用以监控各区内公物在夜间被涂鸦或损毁的情况，并收集相关证据以便对破坏者进行处罚。不过，德国相当严苛的反监控法或对此类无人机的使用产生影响。德国铁路发言人表示，无人机上只会在夜间在车厢上涂鸦现象比较集中的大型站点上空飞行，红外相机也只关注铁路公司旗下的产业，铁路站点以外的人和物不在拍摄范围内。据悉，德国铁路公司每年用于清理各类涂鸦的花费高达760万欧元（约合100万美元），而每架无人机的成本约为6万欧元，可在距离地面150米的上空近乎无声飞行。</p><p><span word="Germany">Germany</span>'<span word="s">s</span> <span word="national">national</span> <span word="railway">railway</span> <span word="company">company</span>, <span word="Deutsche">Deutsche</span> <span word="Bahn">Bahn</span>, <span word="plans">plans</span> <span word="to">to</span> <span word="test">test</span> <span word="small">small</span> <span word="drones">drones</span> <span word="to">to</span> <span word="try">try</span> <span word="to">to</span> <span word="reduce">reduce</span> <span word="the">the</span> <span word="amount">amount</span> <span word="of">of</span> <span word="graffiti">graffiti</span> <span word="being">being</span> <span word="sprayed">sprayed</span> <span word="on">on</span> <span word="its">its</span> <span word="property">property</span>.</p><p><span word="The">The</span> <span word="idea">idea</span> <span word="is">is</span> <span word="to">to</span> <span word="use">use</span> <span word="airborne">airborne</span> <span word="infra">infra</span>-<span word="red">red</span> <span word="cameras">cameras</span> <span word="to">to</span> <span word="collect">collect</span> <span word="evidence">evidence</span>, <span word="which">which</span> <span word="could">could</span> <span word="then">then</span> <span word="be">be</span> <span word="used">used</span> <span word="to">to</span> <span word="prosecute">prosecute</span> <span word="vandals">vandals</span> <span word="who">who</span> <span word="deface">deface</span> <span word="property">property</span> <span word="at">at</span> <span word="night">night</span>.</p><p><span word="A">A</span> <span word="company">company</span> <span word="spokesman">spokesman</span> <span word="said">said</span> <span word="drones">drones</span> <span word="would">would</span> <span word="be">be</span> <span word="tested">tested</span> <span word="at">at</span> <span word="rail">rail</span> <span word="depots">depots</span> <span word="soon">soon</span>.</p><p><span word="But">But</span> <span word="it">it</span> <span word="is">is</span> <span word="not">not</span> <span word="yet">yet</span> <span word="clear">clear</span> <span word="how">how</span> <span word="Germany">Germany</span>'<span word="s">s</span> <span word="strict">strict</span> <span word="anti">anti</span>-<span word="surveillance">surveillance</span> <span word="laws">laws</span> <span word="might">might</span> <span word="affect">affect</span> <span word="their">their</span> <span word="use">use</span>.</p><p><span word="Graffiti">Graffiti</span> <span word="is">is</span> <span word="reported">reported</span> <span word="to">to</span> <span word="cost">cost</span> <span word="Deutsche">Deutsche</span> <span word="Bahn">Bahn</span> <span word="about">about</span> 7.6<span word="m">m</span> <span word="euros">euros</span> ($10<span word="m">m</span>) <span word="a">a</span> <span word="year">year</span>.</p><p><span word="German">German</span> <span word="media">media</span> <span word="report">report</span> <span word="that">that</span> <span word="each">each</span> <span word="drone">drone</span> <span word="will">will</span> <span word="cost">cost</span> <span word="about">about</span> 60,000 <span word="euros">euros</span> <span word="and">and</span> <span word="fly">fly</span> <span word="almost">almost</span> <span word="silently">silently</span>, <span word="up">up</span> <span word="to">to</span> 150<span word="m">m</span> (495<span word="ft">ft</span>) <span word="above">above</span> <span word="ground">ground</span>.</p><p><span word="Using">Using</span> <span word="cameras">cameras</span> <span word="to">to</span> <span word="film">film</span> <span word="people">people</span> <span word="surreptitiously">surreptitiously</span> <span word="is">is</span> <span word="a">a</span> <span word="sensitive">sensitive</span> <span word="issue">issue</span> <span word="in">in</span> <span word="Germany">Germany</span>, <span word="where">where</span> <span word="privacy">privacy</span> <span word="is">is</span> <span word="very">very</span> <span word="highly">highly</span> <span word="valued">valued</span>.</p>
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