电子与通信技术专业英语(第4版)Unit 3 lesson 17
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Lesson 17 Wireless Sensor Network
PART
A wireless sensor network (WSN) consists of spatially distributed autonomous sensors to monitor physical or environmental conditions, such as temperature, sound, pressure, etc. ,and to cooperatively pass their data through the network to a main location. The more modern networks are bi-directional, also enabling control of sensor activity. The development of wireless sensor networks was motivated by military applications such as battlefield surveillance; today such networks are used in many industrial and consumer applications, such as industrial process monitoring and control, machine health monitoring, and so on.
thetopologyofthewsnscanvaryfromasimplestarnetworktoanadvancedmultihopwirelessmeshnetworktextnewwordnotesexercisestranslationvocabularyparttranslation第17课课无线传感器网络wsn无线传感器网络wsn由空间上分布的自主式传感器组成用以监控物理或环境条件如温度声音压力等并通过网络将数据合成到一个主位置
Smart home monitoring Monitoring the activities performed in a smart home is achieved using wireless sensors embedded within everyday objects forming a WSN. State changes to objects based on human manipulation is captured by the wireless sensors network enabling activitysupport services.
双向的，双向作用的 监视 收发器
约束，限制 部署 侵扰 发展；进化
火山 冰川
湿度 植物 消防队 协议 把……嵌入
Text
New word
Notes
Exercises
Translation
Vocabulary
New words and phrases:
PART
Phrases and Expressions
Text
New word
Notes
Exercises
Translation
Vocabulary
New words and phrases:
PART
bi-directional [baidi'rekʃ(ə)n(ə)l] adj. surveillance [sə'veiləns] n. transceiver [træn'si:və] n. constraint [kən'streint] n. deploy [di'plɔi] vt. intrusion [in'tru:ʒn] n. evolve [i'vɔlv] v. volcano [vɔl'keinəu] n. glacier ['glæsiə] n. humidity [hju'miditi] n. vegetation [vedʒi'teiʃn] n. fire brigade ['faiə] [bri'geid] protocol ['prəutəkɔlz] n. embed [im'bed] vt.
Text
New word
Notes
Exercises
Translation
Vocabulary
Notes:
PART
3.The term Environmental Sensor Networks has evolved to cover many applications of WSNs to earth science research. 译文：环境传感器网络这个术语已逐步包含了无线传感器网络在地球科学研究领域中 的多种应用。 （1）cover: 包含，涉及，如：The talks are expected to cover other topics too. （2）application: 运用，应用， 用法为 application（of sth.） (to sth.)，如：The application of new scientific discoveries to industrial production methods usually increases efficiency. 4.The advantage of WSNs over conventional loggers is the "live" data feed that is possible. 译文：无线传感器网络的优点是使“活”的数据传送成为可能。 Advantage: 有利条件，优势，常与介词over连用，指“与……相比的长处”，如：For certain types of work, wood has advantages over plastic.
Text
New word
Notes
Exercises
Translation
Vocabulary
Lesson 17 Wireless Sensor Network
PART
early detection is crucial for a successful action of the firefighters; thanks to Wireless Sensor Networks, the fire brigade will be able to know when a fire is started and how it is spreading.
WSN (wireless sensor network) WMN (wireless mesh network)
无线传感器网络 无线网状网络
Text
New word
Notes
Exercises
Translation
Vocabulary
Notes:
PART
1.A wireless sensor network consists of spatially distributed autonomous sensors to monitor physical or environmental conditions, such as temperature, sound, pressure, etc. 译文：无线传感器网络（WSN）由空间上分布的自主式传感器组成，用以监控物理 或环境条件，如温度、声音、压力等。 consist of: 由……构成，如：All electronic computers consist of five units although they are of different kinds. 2.A sensor node might vary in size from that of a shoebox down to the size of a grain of dust. 译文：传感器节点的尺寸从鞋盒大小到一粒灰尘大小不等。 that 替代size。英语中，有时为了避免重复提到过的名词，常可用that或those作替代词。其中，that替代单 数名词，只能指物；those替代复述名词，既可指物，也可指人。如： （1）The climate of Shenyang is just as bad as that of Beijing. （2）The houses of the rich are generally larger than those of the poor．
Data logging Wireless sensor networks are also used for the collection of data for monitoring of environmental information. The statistical information can then be used to show how systems have been working. The advantage of WSNs over conventional loggers is the "live" data feed that is possible. Industrial sense and control applications In recent research, a vast number of wireless sensor network communication protocols have been developed. While previous research was primarily focused on power awareness, more recent research have begun to consider a wider range of aspects, such as wireless link
Text
Nranslation
Vocabulary
Notes:
PART
5.While previous research was primarily focused on power awareness, more recent research have begun to consider a wider range of aspects, such as wireless link reliability, real-time capabilities, or quality-of-service. 译文：虽然以前的研究主要集中在功能方面，最近的研究已经开始考虑更广泛的方面， 比如无线链路的可靠性，实时性，或服务质量。 while 在本句中表示对比，转折，如：While some people think his comedy is funny, others find him offensive.
Text
New word
Notes
Exercises
Translation
Vocabulary
Lesson 17 Wireless Sensor Network
PART
reliability, real-time capabilities, or quality-of-service. These new aspects are considered as an enabler for future applications in industrial and related wireless sense and control applications, and partially replacing or enhancing conventional wire-based networks by WSN techniques.
The WSN is built of "nodes" – from a few to several hundreds or even thousands, where each node is connected to one (or sometimes several) sensors (as shown in Fig.17-1). Each such sensor network node has typically several parts: a radio transceiver with an internal antenna or connection to an external antenna, a microcontroller, an electronic
PART
A wireless sensor network (WSN) consists of spatially distributed autonomous sensors to monitor physical or environmental conditions, such as temperature, sound, pressure, etc. ,and to cooperatively pass their data through the network to a main location. The more modern networks are bi-directional, also enabling control of sensor activity. The development of wireless sensor networks was motivated by military applications such as battlefield surveillance; today such networks are used in many industrial and consumer applications, such as industrial process monitoring and control, machine health monitoring, and so on.
thetopologyofthewsnscanvaryfromasimplestarnetworktoanadvancedmultihopwirelessmeshnetworktextnewwordnotesexercisestranslationvocabularyparttranslation第17课课无线传感器网络wsn无线传感器网络wsn由空间上分布的自主式传感器组成用以监控物理或环境条件如温度声音压力等并通过网络将数据合成到一个主位置
Smart home monitoring Monitoring the activities performed in a smart home is achieved using wireless sensors embedded within everyday objects forming a WSN. State changes to objects based on human manipulation is captured by the wireless sensors network enabling activitysupport services.
双向的，双向作用的 监视 收发器
约束，限制 部署 侵扰 发展；进化
火山 冰川
湿度 植物 消防队 协议 把……嵌入
Text
New word
Notes
Exercises
Translation
Vocabulary
New words and phrases:
PART
Phrases and Expressions
Text
New word
Notes
Exercises
Translation
Vocabulary
New words and phrases:
PART
bi-directional [baidi'rekʃ(ə)n(ə)l] adj. surveillance [sə'veiləns] n. transceiver [træn'si:və] n. constraint [kən'streint] n. deploy [di'plɔi] vt. intrusion [in'tru:ʒn] n. evolve [i'vɔlv] v. volcano [vɔl'keinəu] n. glacier ['glæsiə] n. humidity [hju'miditi] n. vegetation [vedʒi'teiʃn] n. fire brigade ['faiə] [bri'geid] protocol ['prəutəkɔlz] n. embed [im'bed] vt.
Text
New word
Notes
Exercises
Translation
Vocabulary
Notes:
PART
3.The term Environmental Sensor Networks has evolved to cover many applications of WSNs to earth science research. 译文：环境传感器网络这个术语已逐步包含了无线传感器网络在地球科学研究领域中 的多种应用。 （1）cover: 包含，涉及，如：The talks are expected to cover other topics too. （2）application: 运用，应用， 用法为 application（of sth.） (to sth.)，如：The application of new scientific discoveries to industrial production methods usually increases efficiency. 4.The advantage of WSNs over conventional loggers is the "live" data feed that is possible. 译文：无线传感器网络的优点是使“活”的数据传送成为可能。 Advantage: 有利条件，优势，常与介词over连用，指“与……相比的长处”，如：For certain types of work, wood has advantages over plastic.
Text
New word
Notes
Exercises
Translation
Vocabulary
Lesson 17 Wireless Sensor Network
PART
early detection is crucial for a successful action of the firefighters; thanks to Wireless Sensor Networks, the fire brigade will be able to know when a fire is started and how it is spreading.
WSN (wireless sensor network) WMN (wireless mesh network)
无线传感器网络 无线网状网络
Text
New word
Notes
Exercises
Translation
Vocabulary
Notes:
PART
1.A wireless sensor network consists of spatially distributed autonomous sensors to monitor physical or environmental conditions, such as temperature, sound, pressure, etc. 译文：无线传感器网络（WSN）由空间上分布的自主式传感器组成，用以监控物理 或环境条件，如温度、声音、压力等。 consist of: 由……构成，如：All electronic computers consist of five units although they are of different kinds. 2.A sensor node might vary in size from that of a shoebox down to the size of a grain of dust. 译文：传感器节点的尺寸从鞋盒大小到一粒灰尘大小不等。 that 替代size。英语中，有时为了避免重复提到过的名词，常可用that或those作替代词。其中，that替代单 数名词，只能指物；those替代复述名词，既可指物，也可指人。如： （1）The climate of Shenyang is just as bad as that of Beijing. （2）The houses of the rich are generally larger than those of the poor．
Data logging Wireless sensor networks are also used for the collection of data for monitoring of environmental information. The statistical information can then be used to show how systems have been working. The advantage of WSNs over conventional loggers is the "live" data feed that is possible. Industrial sense and control applications In recent research, a vast number of wireless sensor network communication protocols have been developed. While previous research was primarily focused on power awareness, more recent research have begun to consider a wider range of aspects, such as wireless link
Text
Nranslation
Vocabulary
Notes:
PART
5.While previous research was primarily focused on power awareness, more recent research have begun to consider a wider range of aspects, such as wireless link reliability, real-time capabilities, or quality-of-service. 译文：虽然以前的研究主要集中在功能方面，最近的研究已经开始考虑更广泛的方面， 比如无线链路的可靠性，实时性，或服务质量。 while 在本句中表示对比，转折，如：While some people think his comedy is funny, others find him offensive.
Text
New word
Notes
Exercises
Translation
Vocabulary
Lesson 17 Wireless Sensor Network
PART
reliability, real-time capabilities, or quality-of-service. These new aspects are considered as an enabler for future applications in industrial and related wireless sense and control applications, and partially replacing or enhancing conventional wire-based networks by WSN techniques.
The WSN is built of "nodes" – from a few to several hundreds or even thousands, where each node is connected to one (or sometimes several) sensors (as shown in Fig.17-1). Each such sensor network node has typically several parts: a radio transceiver with an internal antenna or connection to an external antenna, a microcontroller, an electronic