{"id":3163,"date":"2025-03-21T09:05:40","date_gmt":"2025-03-21T09:05:40","guid":{"rendered":"https:\/\/bombaster.org\/?page_id=3163"},"modified":"2025-03-21T09:07:37","modified_gmt":"2025-03-21T09:07:37","slug":"am_crosspoint","status":"publish","type":"page","link":"https:\/\/www.bombaster.org\/ro\/am_crosspoint\/","title":{"rendered":"AM\u00a0CROSSPOINT"},"content":{"rendered":"
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AM<\/span> <\/span>Sistemele CROSSPOINT au ap\u0103rut pe radarul nostru \u00eenc\u0103 din 2012. La \u00eenceput, erau foarte pu\u021bine \u0219i p\u0103reau mai degrab\u0103 o minun\u0103\u021bie tehnic\u0103 ciudat\u0103 dec\u00e2t o problem\u0103.
\u00cen timp, num\u0103rul lor a crescut \u0219i s-au dovedit a fi complet impenetrabile pentru bruiajurile obi\u0219nuite sau pentru orice bruiaj existent la acel moment.
<\/span>\u00cen 2015, am g\u0103sit \u00een sf\u00e2r\u0219it de unde s\u0103 cump\u0103r\u0103m aceste sisteme AM<\/span> \u0219i am \u00eenceput primele \u00eencerc\u0103ri de a face ceva cu ele.
<\/span>La \u00eenceput, p\u0103rea complet nerealist \u2014 sistemul are un sistem de adaptare la zgomot destul de sofisticat, \u00eentr-o implementare analitic\u0103 digital\u0103.

<\/span><\/b><\/p>

Ce \u00eenseamn\u0103 asta?
<\/span>- Sistemul, analiz\u00e2nd diferen\u021bele de zgomot, starea de repaus \u0219i informa\u021biile oferite de senzori, determin\u0103 ce trebuie f\u0103cut:<\/span><\/b><\/p>

   1.<\/span> lini\u0219te;<\/span>
   2.<\/span> nu face nimic \u0219i repet\u0103 procedura de selec\u021bie a ac\u021biunii;<\/span>
   3.<\/span> alarm\u0103;<\/span>
   4.<\/span> adapteaz\u0103-te la zgomot.<\/span><\/b><\/p>

*op\u021biunile 3 \u0219i 4 sunt \u00eentotdeauna \u00eenso\u021bite de sunet.

Op\u021biunea 3 este c\u00e2nd sistemul detecteaz\u0103 un senzor \u0219i declan\u0219eaz\u0103 alarma, iar op\u021biunea 4 este c\u00e2nd por\u021bile v\u0103d ceva \u00een neregul\u0103 \u0219i trec de la o metod\u0103 de analiz\u0103 la alta.<\/span>

<\/span>Ce am f\u0103cut...?
<\/span>- \u00cen m\u0103sura posibilit\u0103\u021bilor, am calculat formulele matematice pentru luarea deciziilor de c\u0103tre por\u021bi, astfel \u00eenc\u00e2t op\u021biunea 2 s\u0103 se \u00eent\u00e2mple \u00eentr-o bucl\u0103 \u00eenchis\u0103:

<\/span>nu face nimic \u0219i repet\u0103 procedura de selec\u021bie a ac\u021biunii;<\/span>
nu face nimic \u0219i repet\u0103 procedura de selec\u021bie a ac\u021biunii;
nu face nimic \u0219i repet\u0103 procedura de selec\u021bie a ac\u021biunii;
nu face nimic \u0219i repet\u0103 procedura de selec\u021bie a ac\u021biunii;
\u0219i a\u0219a mai departe.<\/span><\/b><\/p>

Cu toate acestea, au existat \u0219i \u00eenc\u0103 mai exist\u0103 nuan\u021be la aceast\u0103 solu\u021bie din motive simple.
Un bruiaj este doar o surs\u0103 de semnal (figurativ vorbind, un punct), dar de obicei exist\u0103 dou\u0103 sau mai multe por\u021bi, iar fiecare dintre ele ascult\u0103 ce se \u00eent\u00e2mpl\u0103:<\/span>:
<\/span>- exist\u0103 o schimbare constant\u0103 a nivelului semnalului dintr-un punct, \u0219i c\u00e2nd ne mi\u0219c\u0103m, afect\u0103m substan\u021bial \u0219i diferit por\u021bile pentru o anumit\u0103 perioad\u0103 de timp (care este \u00eentotdeauna diferit\u0103), declan\u0219\u00e2nd procesul de adaptare la una sau ambele por\u021bi simultan.


<\/span><\/b><\/p>

Prin urmare, o gr\u0103mad\u0103 de nuan\u021be \u0219i reguli cu AM<\/span> CROSSPOINT:<\/b><\/span><\/p>

   1.<\/span> Nu te apropia de magazin din col\u021b, deoarece poarta mai aproape de tine \"aude\" bruiajul mai mult dec\u00e2t cea mai \u00eendep\u0103rtat\u0103, duc\u00e2nd la diferen\u021be \u00een calcule \u0219i adaptare.<\/span>
   2.<\/span> Intr\u0103 \u00een magazin de la o distan\u021b\u0103 de cel pu\u021bin 2-3 metri drept, ca \u0219i cum ai merge printr-un tunel cu por\u021bi de fiecare parte.<\/span>
   3.<\/span> Dup\u0103 ce intri \u00een magazin, nu este recomandat s\u0103 virezi imediat la dreapta sau la st\u00e2nga, deoarece va avea loc adaptarea la diferen\u021bele de calcule. Mergi mai ad\u00e2nc \u00een magazin cu 2-3 metri.<\/span>
   4.<\/span> Nu roti bruiajul l\u00e2ng\u0103 por\u021bi, deoarece c\u00e2mpul bruiajului are doi poli, iar un bruiaj rotativ va provoca adaptare.<\/span>
   5.<\/span> C\u00e2nd treci prin CROSSPOINT, cea mai stabil\u0103 pozi\u021bie a bruiajului este dac\u0103 acesta este \u00een m\u00e2na ta sau \u00een buzunarul lateral \u0219i este pozi\u021bionat paralel cu planul por\u021bilor. Asta \u00eenseamn\u0103 c\u0103 antena din interiorul bruiajului este \u00eenf\u0103\u0219urat\u0103 aproximativ la fel ca \u00een poart\u0103. Doar prive\u0219te poarta \u0219i \u021bine bruiajul \u00een acela\u0219i mod. Acest lucru va permite un semnal mai stabil f\u0103r\u0103 fluctua\u021bii puternice.<\/span>
  
Exist\u0103 \u0219i c\u00e2teva exemple de succes de aplicare:<\/span><\/b><\/p>

  •    \ud83d\udccc Dac\u0103 ai un partener sau lucrezi \u00een echip\u0103, persoana cu bruiajul poate s\u0103 se apropie de por\u021bi \u0219i, de la o distan\u021b\u0103 scurt\u0103, s\u0103 porneasc\u0103 bruiajul cu modul preselectat #4. Dup\u0103 aceasta, colegii t\u0103i pot trece prin por\u021bi cu \u0219anse minime de a declan\u0219a o alarm\u0103 sau o adaptare, deoarece bruiajul nu se mi\u0219c\u0103 \u0219i transmite semnal stabil la por\u021bi.<\/b><\/span><\/li>
  •    \ud83d\udccc Dac\u0103 lucrezi singur, \u00een unele cazuri, tactica \"impactului pe termen scurt\" asupra por\u021bilor a ajutat. Te apropii de por\u021bi la 1-1,5 metri, porne\u0219ti bruiajul cu modul preselectat #4, treci prin por\u021bi \u0219i dup\u0103 1-1,5 metri, opre\u0219ti bruiajul. Algoritmul de adaptare nu neap\u0103rat percepe aceast\u0103 situa\u021bie ca zgomot, \u0219i nu va exista semnal sonor deoarece impactul este pe termen scurt.

    <\/b><\/span><\/li><\/ul>

    Acest text bogat \u00een informa\u021bii a fost scris din cauza anumitor dificult\u0103\u021bi \u00eent\u00e2mpinate de utilizatorii novici \u00een unele cazuri de aplicare cu AM<\/span> CROSSPOINT. Cu toate acestea, modul #4 \u00een multe cazuri ofer\u0103 un rezultat normal \u0219i stabil, pe care l-am atins prin mai multe etape pe parcursul a aproximativ 6 ani. Modul #4 a suferit multe schimb\u0103ri esen\u021biale \u0219i \u00eembun\u0103t\u0103\u021biri minore, \u0219i credem obiectiv c\u0103 \u00een acest moment, aceast\u0103 metod\u0103 a fost perfec\u021bionat\u0103 \u00een limitele capacit\u0103\u021bilor tehnice actuale ale electronicii bruiajului.<\/b><\/span><\/p>

     <\/b><\/span><\/p>

    Cel mai bun sfat de la noi \u0219i de la al\u021bi utilizatori: mai \u00eent\u00e2i, practic\u0103 \u0219i recunoa\u0219te cu AM<\/span> CROSSPOINT \u0219i cu senzorii \u00een buzunar exact acolo unde nu trebuie s\u0103 lucrezi, \u0219i abia apoi treci la treab\u0103!<\/b><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

    AM CROSSPOINT systems appeared on our radar back in 2012. At first, there were very few of them, and they seemed more like a strange technical marvel than a problem.Over time, their numbers increased, and they turned out to be completely impenetrable to regular jammers or to any existing jammers at that time.In 2015, we finally […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3163","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.bombaster.org\/ro\/wp-json\/wp\/v2\/pages\/3163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bombaster.org\/ro\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.bombaster.org\/ro\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.bombaster.org\/ro\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bombaster.org\/ro\/wp-json\/wp\/v2\/comments?post=3163"}],"version-history":[{"count":7,"href":"https:\/\/www.bombaster.org\/ro\/wp-json\/wp\/v2\/pages\/3163\/revisions"}],"predecessor-version":[{"id":3170,"href":"https:\/\/www.bombaster.org\/ro\/wp-json\/wp\/v2\/pages\/3163\/revisions\/3170"}],"wp:attachment":[{"href":"https:\/\/www.bombaster.org\/ro\/wp-json\/wp\/v2\/media?parent=3163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}