<span style="font-family:KaiTi_GB2312;"><span style=" color: rgb(255, 0, 0); font-size: 24px; "><strong>呼倫貝爾射頻卡水表廠家/價格優(yōu)惠</strong></span><br /><span style="font-family: arial; line-height: 20px; text-align: left; widows: 1; "><span style=" font-family: KaiTi_GB2312; color: rgb(255, 0, 0); font-size: 24px; "><strong>生產(chǎn)廠家、</strong></span><span style="font-size:24px;color:#ff0000;"><strong>為客戶提供和大價值的化產(chǎn)品和服務(wù)</strong></span></span><span style="font-size:24px;color: rgb(255, 0, 0); "><strong>：姜工 電聯(lián)：?</strong></span><br /><span style="font-size:18px;color:#ff0000;"><span style="font-family: arial; line-height: 20px; text-align: left; widows: 1; ">研制</span><span style="font-style: normal; font-family: arial; line-height: 20px; text-align: left; widows: 1; ">智能水表</span><span style="font-family: arial; line-height: 20px; text-align: left; widows: 1; ">,非接觸IC卡</span><span style="font-style: normal; font-family: arial; line-height: 20px; text-align: left; widows: 1; ">水表</span><span style="font-family: arial; line-height: 20px; text-align: left; widows: 1; ">,無源直讀</span><span style="font-style: normal; font-family: arial; line-height: 20px; text-align: left; widows: 1; ">水表</span><span style="font-family: arial; line-height: 20px; text-align: left; widows: 1; ">,無線遠(yuǎn)傳</span><span style="font-style: normal; font-family: arial; line-height: 20px; text-align: left; widows: 1; ">水表</span><span style="font-family: arial; line-height: 20px; text-align: left; widows: 1; ">,超聲波</span><span style="font-style: normal; font-family: arial; line-height: 20px; text-align: left; widows: 1; ">水表</span><span style="font-family: arial; line-height: 20px; text-align: left; widows: 1; ">,大口徑</span><span style="font-style: normal; font-family: arial; line-height: 20px; text-align: left; widows: 1; ">水表</span><span style="font-family: arial; line-height: 20px; text-align: left; widows: 1; ">,IC卡淋浴器,物聯(lián)網(wǎng)</span><span style="font-style: normal; font-family: arial; line-height: 20px; text-align: left; widows: 1; ">水表</span><span style="font-family: arial; line-height: 20px; text-align: left; widows: 1; ">等.性能穩(wěn)定.</span></span><span style=" font-size: 18px; "><strong><br /></strong></span></span><span style="font-family:KaiTi_GB2312;font-size:18px;"><br /><span style="color: rgb(102, 102, 102); font-family: 宋體; line-height: 24px; widows: 1; "></span>在IC卡智能水表系統(tǒng)中還存在一定的干擾，對水表的系統(tǒng)安全造成一定的，在電子學(xué)中對干擾的分類大多分為燥聲干擾，電源串?dāng)_、靜電干擾。<br />　　在電子學(xué)中，干擾是這樣來定義的，干擾：在接收一所需信號時，非所需能量造成的擾亂效應(yīng)，包括其它信號的影響、雜散發(fā)射、人為燥聲等。<br />　　在國際無線電咨詢的文件中，干擾的結(jié)果被分為三類；允許的干擾、可接受的干擾和有的干擾。下面在水表中提到的干擾是指電子電路中的干擾，是整個系統(tǒng)統(tǒng)或設(shè)備中的一個關(guān)鍵部分。<span style="color: rgb(102, 102, 102); font-family: 宋體; line-height: 24px; widows: 1; "></span><br><span style="color: rgb(102, 102, 102); font-family: 宋體; line-height: 24px; widows: 1; ">呼倫貝爾射頻卡水表廠家/價格優(yōu)惠物理性破壞指標(biāo)。一般說來，只要采用良好的整體性殼體保護(hù)措施，一般都能滿足保護(hù)性要求。當(dāng)然，使用IC卡的水表，其卡座是容易受攻擊的部位，這是一個無法解決的問題。所以要考慮進(jìn)行軟件保護(hù)處理，使對卡座的攻擊意義不大，即便卡座壞了，并不影響IC卡水表其它部分的正常工作。但從實際使用情況來看，這個問題并不嚴(yán)重。因為IC卡水表一般是安裝在用戶家里，使用對象明確，并且水表是用戶的財產(chǎn)，沒有特殊的理由，用戶并不會攻擊儀表。不能考慮無限制的加強(qiáng)儀表的抗攻擊性，而是要對故意施加的破壞行為能夠進(jìn)行認(rèn)定并進(jìn)行相應(yīng)處罰。</span><br><p style="color: rgb(102, 102, 102); font-family: 宋體; line-height: 24px; widows: 1; "><strong>呼倫貝爾射頻卡水表廠家/價格優(yōu)惠外形尺寸：</strong><br /></p><table width="" border="0" cellspacing="0" cellpadding="0" style="padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; color: rgb(102, 102, 102); font-family: 宋體; font-size: 12px; line-height: 24px; widows: 1; "><tbody><tr><td width="31%" style="color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">1、安裝示意圖</td><td width="69%" style="color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">2、水表連接尺寸圖</td></tr><tr><td style="color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><img src="" width="210" height="160" alt="" /></td><td style="color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><table width="90%" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC" style="padding: 0px; margin: 0px;"><tbody><tr><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">公稱通徑DNmm</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">50</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">80</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">100</td></tr><tr><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">法蘭外徑</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">165</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">200</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">220</td></tr><tr><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">螺孔中心直徑Dmm₁</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">125</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">160</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">180</td></tr><tr><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">螺孔數(shù)量直徑z-￠d</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">4-19</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">8-19</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">8-19</td></tr><tr><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">總長度 lmm</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">280</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">370</td><td height="25" align="center" bgcolor="#FFFFFF" style="font-family: 宋體; color: rgb(51, 51, 51); padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">370</td></tr></tbody></table></td></tr></tbody></table><br><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; font-size: 18px; line-height: 29px; text-align: justify; widows: 1; ">每種技術(shù)都有其優(yōu)勢和不足，如有線技術(shù)比較成熟連接穩(wěn)定，但舊區(qū)改造布線會有困難。小無線技術(shù)不受布線的約束，帶來了方便的同時也會有傳輸距離和信號覆蓋的問題。GPRS技術(shù)網(wǎng)絡(luò)成熟，信號網(wǎng)絡(luò)好，但其功耗過高。低功耗廣域（LPWA）技術(shù)滿足了水表低功耗廣連接的需求。</span></span><br /><br />

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