diff --git a/img/AES_multiplepack.png b/img/AES_multiplepack.png
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diff --git a/img/AES_singlepack.png b/img/AES_singlepack.png
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index 0000000..42c24a2
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diff --git a/img/AES_timecode.png b/img/AES_timecode.png
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diff --git a/img/WCT.png b/img/WCT.png
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diff --git a/img/image1.png b/img/image1.png
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diff --git a/img/image7.png b/img/image7.png
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diff --git a/img/mqtt_1.png b/img/mqtt_1.png
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diff --git a/img/mqtt_2.png b/img/mqtt_2.png
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diff --git a/img/mqtt_3.png b/img/mqtt_3.png
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diff --git a/img/mqtt_4.png b/img/mqtt_4.png
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diff --git a/img/mqtt_5.png b/img/mqtt_5.png
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diff --git a/img/mqtt_6.png b/img/mqtt_6.png
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index 0000000..a5f0574
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diff --git a/img/升级总流程.png b/img/升级总流程.png
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diff --git a/img/广播阶段.png b/img/广播阶段.png
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diff --git a/img/询问阶段.png b/img/询问阶段.png
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diff --git a/img/透传阶段.png b/img/透传阶段.png
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