[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fVBvjJXv-a1S4QJNwgPViF1ZEzg7yLq4g8SSlpgbXlY0":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":8,"question":15,"related":16,"source":22,"type":23},[],"2025-12-06 14:12:57",252658501,[],{"count":9,"courseId":10,"courseImg":11,"courseName":12,"workId":13,"workName":14},150,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","exam_168019914","复习测试2","Modbus是一种 的通信协议,即在同一时间里,总线上只能有一个主机,但可以有一个或多个(最多247个)从机",[17,24,29,34,37,42,47,52,57,62],{"answer":18,"createTime":5,"id":19,"options":20,"question":21,"source":22,"type":23},[],252658498,[],"一个12位分辨率的A\u002FD转换器,若供电电压为5V,当输入模拟量为3V时,可计算出输出数字量为","v1",2,{"answer":25,"createTime":5,"id":26,"options":27,"question":28,"source":22,"type":23},[],252658499,[],"IEEE 802.15.4标准主要包括: 和应用层技术",{"answer":30,"createTime":5,"id":31,"options":32,"question":33,"source":22,"type":23},[],252658500,[],"CAN总线通信使用 传输方式,当CAN总线上某一个节点以报文形式广播发送数据时,其他节点无论数据是否发送给自己,都对其进行接收",{"answer":35,"createTime":5,"id":6,"options":36,"question":15,"source":22,"type":23},[],[],{"answer":38,"createTime":5,"id":39,"options":40,"question":41,"source":22,"type":23},[],252658502,[],"TI公司CC2530开发板搭载的ZigBee无线网络,工作在 频段",{"answer":43,"createTime":5,"id":44,"options":45,"question":46,"source":22,"type":23},[],252658503,[],"CAN总线具有"仲裁"功能,即当多个节点设备同时向总线发送数据时,采用这些数据的逻辑运算值作为总线输出.当两个节点设备同时向总线输出,一个输出"1100",一个输出"0011"时,总线输出",{"answer":48,"createTime":5,"id":49,"options":50,"question":51,"source":22,"type":23},[],252658504,[],"ESP8266支持3种工作模式,分别为station、 和station+soft-AP模式",{"answer":53,"createTime":5,"id":54,"options":55,"question":56,"source":22,"type":23},[],252658505,[],"通过RS-485网络上报数据到网关时,如果数据域为两个字节,并且高字节为温度值,当上报的数据域中的数据是0x20C0时,上传的温度是 ℃",{"answer":58,"createTime":5,"id":59,"options":60,"question":61,"source":22,"type":23},[],252658506,[],"basicRFCfg_t是BasicRF协议中一个重要的结构体,其成员变量"panId"表示",{"answer":63,"createTime":5,"id":64,"options":65,"question":66,"source":22,"type":23},[],252658507,[],"一个无线传感网通常由协调器、 和终端设备三种节点构成"]