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  • 1.
    Huynh, Allan
    et al.
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Zhang, Jingcheng
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Ye, Qin-Zhong
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Gong, Shaofang
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Wireless Remote Monitoring System for Cultural Heritage2010Inngår i: Sensors & Transducers Journal, ISSN 1726-5479, Vol. 118, nr 7, s. 1-12Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Existing systems to collect temperature and relative humidity data at cultural heritage buildings require technical knowledge by people who are working with it, which is very seldom that they do have. The systems available today also require manual downloading of the collected data from the sensor to a computer for central storage and for further analysis. In this paper a wireless remote sensor network based on the ZigBee technology together with a simplified data collection system is presented. The system does not require any knowledge by the building administrator after the network is deployed. The wireless sensor device will automatically join available network when the user wants to expand the network. The collected data will be automatically and periodically synchronized to a remote main server via an Internet connection. The data can be used for centralized monitoring and other purpose. The power consumption of the sensor module is also minimized and the battery lifetime is estimated up to 10 years.

  • 2.
    Huynh, Allan
    et al.
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Zhang, Jingcheng
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Ye, Qin-Zhong
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Gong, Shaofang
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    ZigBee Radio with External Low-Noise Amplifier2010Inngår i: Sensors & Transducers Journal, ISSN 1726-5479, Vol. 114, nr 3, s. 184-191Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This article presents the performance study of a ZigBee module with an external low-noiseamplifier, measured in both outdoor and indoor environments. Our previous study has already shownthat the indoor campus environment such as walls and floors would reduce the radio link rangedrastically and the packet error rate increased. In this study, an external low-noise amplifier has beenadded to a ZigBee module to increase the receiver sensitivity. It is shown that with an external lownoiseamplifier the outdoor radio range can reach up to 403 m with a negligible packet error ratecompared to 144 m without the low-noise amplifier for point-to-point connection. Thus, by increasingthe receiver sensitivity the radio range can be increased without increasing of the radio power outputso that the power consumption can still be kept low to obtain long battery lifetime.

  • 3.
    Huynh, Allan
    et al.
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Zhang, Jingcheng
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Ye, Qin-Zhong
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Gong, Shaofang
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    ZigBee Radio with External Power Amplifier and Low-Noise Amplifier2010Inngår i: Sensors & Transducers Journal, ISSN 1726-5479, Vol. 118, nr 7, s. 110-121Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This paper presents the performance study of a ZigBee module with both an external power amplifier and a low-noise amplifier, measured in outdoor and indoor environments, respectively. Our previous study has already shown that the indoor campus environment such as walls and floors would reduce the radio link range drastically and the packet error rate increased. In this study, both an external power amplifier and a low-noise amplifier have been added to a ZigBee module to increase both the transmitter power and receiver sensitivity. It is shown that with an external power amplifier and a low-noise amplifier the outdoor radio range can reach up to 1600 m with a negligible packet error rate compared to 144 m without any external amplifier for point-to-point radio connection. Thus, by increasing both the transmitter power and receiver sensitivity the radio range can be increased significantly. The power consumption issue with the added amplifiers is studied as well, indicating that the module can still be battery driven with a battery lifetime of about 9 years at a normal sampling rate to the sensor.

  • 4.
    Zhang, Jingcheng
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    A Remote Monitoring and Control System for Cultural Heritage Buildings Utilizing Wireless Sensor Networks2014Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    This dissertation presents the study of a wireless remote monitoring and control system utilized for cultural heritage preservation purpose. The system uses wireless sensor networks to remotely monitor and control the indoor climate, i.e., temperature and relative humidity of the cultural buildings.

    The system mainly consists of three parts, i.e., the wireless sensor network part, the gateway part and the web service part. Wireless sensor networks are deployed in different cultural buildings. The ZigBee protocol is utilized for the wireless sensor network communication. Sensor nodes report the indoor climate periodically. By connecting with radiators and/or dehumidifiers, the wireless control nodes can control the indoor climate according to the remote configuration. A gateway maintains the communication between a wireless sensor network and the web service. In monitoring function, the gateway forwards sensor messages from the wireless sensor network to the web service. In control function, the gateway synchronizes the climate settings from the web service to the wireless sensor network. The gateway also sends control commands to the wireless control nodes in the wireless sensor network. The web service provides a web-based user interface for the system.

    Different from ordinary cable-connected sensor networks, a wireless sensor network that works for cultural heritage preservation should be a system with a large number of sensor nodes covering a large area in a building, high reliability in message transmission, low power consumption and low cost. In this study, the performance of the ZigBee wireless network is improved to meet such requirements base on the investigation of the ZigBee protocol limitation. Firstly, a method for enhancing the wireless sensor network communication reliability is developed. The reactive routing protocol defined by the ZigBee standard is improved so that the wireless nodes automatically detect and repair network communication problems. This method minimizes the message lost within the wireless sensor network by always reserving a route from the source node to the destination node. Secondly, a generic low power working method is developed for sensor devices. This method defines the general sensor module behavior which includes sensor data collecting, sensor message forwardingand wireless network rejoining upon communication failure. It allows sensor devices to maintain high message reliability with low power consumption. Especially, these methods are developed as a complementary infrastructure of the ZigBee wireless sensor network in order to increase the transmission reliability with low power consumption. Finally, methods and algorithms are developed to make it possible to power the ZigBee message relays (i.e., routers) with small batteries. In this system, the whole ZigBee network is synchronized. Wireless communications within the ZigBee network are scheduled so that every wireless transmission is collision-free. During the period when no communication is scheduled, the router can go into low power mode. This design improvement removes the original requirement of using mains power for ZigBee message relays. A truly battery-driven and low power consumption wireless sensor network is developed for monitoring cultural heritage buildings without (or with limited) mains power.

    The remote control function is developed to mainly prevent biological degradation by controlling indoor climate, i.e., temperature and relative humidity. After studying the requirements for heritage preservation, a high flexibility, high reliability and low cost wireless indoor climate control system is developed. Different control algorithms are implemented to achieve different control results.

    Till today, the remote monitoring and control system presented in this dissertation has been installed in 31 cultural heritage buildings both in Sweden and Norway.

    Delarbeid
    1. Remote Sensing System for Cultural Buildings Utilizing ZigBee Technology
    Åpne denne publikasjonen i ny fane eller vindu >>Remote Sensing System for Cultural Buildings Utilizing ZigBee Technology
    2010 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert)
    Abstract [en]

    A wireless remote sensing system using the ZigBee standard ispresented in this paper. This system is a wireless solution formonitoring purpose in cultural buildings in order to protectcultural heritage. The concept of this system utilizes ZigBeenetworks to carry and transmit data collected by sensors andstore them into both local and remote databases. Thus, users canmonitor the measured data locally or remotely. Especially, thepower consumption is optimized to extend the lifetime of thebattery-driven devices. Moreover, since the system has amodular architecture, it is easy to add extra services into thissystem.

    Emneord
    Modular system, power consumption, wireless sensor network, ZigBee
    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-61295 (URN)
    Konferanse
    8th. International Conference on Computing, Communications and Control Technologies (CCCT 2010), April 6 - 9, Orlando, FL, USA
    Prosjekter
    CultureBee
    Tilgjengelig fra: 2010-11-10 Laget: 2010-11-10 Sist oppdatert: 2013-12-16bibliografisk kontrollert
    2. Design of the Remote Climate Control System for Cultural Buildings Utilizing ZigBee Technology
    Åpne denne publikasjonen i ny fane eller vindu >>Design of the Remote Climate Control System for Cultural Buildings Utilizing ZigBee Technology
    2010 (engelsk)Inngår i: Sensors & Transducers Journal, ISSN 2306-8515, E-ISSN 1726-5479, Vol. 118, nr 7, s. 13-27Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    A wireless solution of remote climate control for cultural buildings is presented in this paper. The system allows users to use web service to control climate in different cultural buildings, like churches. The wireless sensor networks deployed in churches receive the control commands and manage the indoor climate. The whole system is modularly designed, which makes possible an easy service extension, system reconfiguration and modification. This paper includes the system overview and the software design of each part within the system.

    Emneord
    ZigBee, Wireless sensor network, Remote control, Modular system design
    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-61293 (URN)
    Prosjekter
    CultureBee
    Tilgjengelig fra: 2010-11-10 Laget: 2010-11-10 Sist oppdatert: 2017-12-12bibliografisk kontrollert
    3. Reliability and Latency Enhancements in a ZigBee Remote Sensing System
    Åpne denne publikasjonen i ny fane eller vindu >>Reliability and Latency Enhancements in a ZigBee Remote Sensing System
    2010 (engelsk)Konferansepaper, Publicerat paper (Annet vitenskapelig)
    Abstract [en]

    Methods to improve the reliability and optimize the system latency of our own-developed ZigBee remote sensing system are introduced in this paper. The concept of this system utilizes the ZigBee network to transmit sensor information and process them at both local and remote databases. The enhancement has been done in different parts in this system. In the ZigBee network part, the network topology is configured and controlled. The latency for message transmitting is also optimized. In the data processing part, the network status check function and data buffer function are introduced to improve the system reliability. Additionally, the system latency is measured to compare with the Ad-hoc On Demand Distance Vector algorithm used in the ZigBee standard.

    Emneord
    System reliability, system latency, ZigBee network topology configuration, data buffering
    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-61294 (URN)10.1109/SENSORCOMM.2010.38 (DOI)978-1-4244-7538-4 (ISBN)
    Konferanse
    The Fourth International Conference on Sensor Technologies and Applications (SENSORCOMM 2010), July 18 - 25, Venice/Mestre, Italy
    Prosjekter
    CultureBee
    Tilgjengelig fra: 2010-11-10 Laget: 2010-11-10 Sist oppdatert: 2014-09-25bibliografisk kontrollert
    4. A Fully Wireless Monitoring and Control System for Protecting Cultural Heritage
    Åpne denne publikasjonen i ny fane eller vindu >>A Fully Wireless Monitoring and Control System for Protecting Cultural Heritage
    2011 (engelsk)Inngår i: Proceedings of 2011 20th IEEE International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises WETICE 2011, IEEE , 2011, s. 250-255Konferansepaper, Publicerat paper (Fagfellevurdert)
    Abstract [en]

    This paper presents a component based wireless monitoring and control system. The system is introduced from both the system architecture and function point of view. The paper begins with the introduction of the component design and the communication interaction between them. The system is composed by three components, the wireless sensor network, the local server and the main server. Wireless sensor networks are deployed in different locations for remote monitoring and control purpose. The monitoring results and control commands are synchronized between the main server and wireless sensor networks via local servers. The test results of the battery life time calculation and remote monitoring field test results are presented in the end of the paper.

    sted, utgiver, år, opplag, sider
    IEEE, 2011
    Serie
    IEEE International Workshop on Enabling Technologies, ISSN 1524-4547
    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-71523 (URN)10.1109/WETICE.2011.43 (DOI)978-1-4577-0134-4 (ISBN)
    Konferanse
    20th IEEE International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises (WETICE), 27-29 June, Paris, France
    Tilgjengelig fra: 2011-10-20 Laget: 2011-10-20 Sist oppdatert: 2013-12-16bibliografisk kontrollert
    5. A Communication Reliability Enhancement Framework for Wireless Sensor Network Using the ZigBee Protocol
    Åpne denne publikasjonen i ny fane eller vindu >>A Communication Reliability Enhancement Framework for Wireless Sensor Network Using the ZigBee Protocol
    2011 (engelsk)Inngår i: Sensors & Transducers Journal, ISSN 2306-8515, E-ISSN 1726-5479, Vol. 135, nr 12, s. 42-56Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    This paper presents the methods for the ZigBee network reliability enhancement and the battery life time optimization. The paper begins with the introduction of the common communication problems due to the broken links between sensor module and message relay, or between different relays. Extra message hand shake mechanisms are added to solve different problem mentioned at the beginning. Finally, a general purpose reliability enhancement component is developed as a state machine which can be work together with ZigBee protocol to enhance ZigBee network communication reliability. Moreover, the battery life time of the sensor module during link broken is considerably increased after the enhancement.

    sted, utgiver, år, opplag, sider
    International Frequency Sensors Association (IFSA), 2011
    Emneord
    Communication reliability enhancement, ZigBee, Reusable, Reconfigurable
    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-79896 (URN)
    Merknad

    On the day of the defence date the status of this article was "Manuscript" and the title was "A Communication Reliability Enhancement Framework for the ZigBee WirelessSensor Network".

    Tilgjengelig fra: 2012-08-15 Laget: 2012-08-15 Sist oppdatert: 2018-07-19bibliografisk kontrollert
    6. A Web-based Remote Indoor Climate Control System Based on Wireless Sensor Network
    Åpne denne publikasjonen i ny fane eller vindu >>A Web-based Remote Indoor Climate Control System Based on Wireless Sensor Network
    Vise andre…
    2013 (engelsk)Inngår i: International Journal of Sensors and Sensor Networks, ISSN 2329-1796, Vol. 1, nr 3, s. 32-40Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    This paper presents the design and implementation of a web-based wireless indoor climate control system. The user interface of the system is implemented as a web service. People can login to the website and remotely control the indoor climate of different locations. A wireless sensor network is deployed in each location to execute control commands. A gateway is implemented to synchronize the information between the wireless sensor network and the web service. The gateway software also includes scheduling function and different control algorithms to improve the control result. Additionally, the system security and availability are highly considered in this system. The gateway software implements a warning function which sends warning messages when emergency happens. Finally, the whole wireless control system architecture is modularly designed. It is easy to add different control applications or different control algorithms into the system.

    sted, utgiver, år, opplag, sider
    Science Publishing Group, 2013
    Emneord
    Remote Control, Indoor Climate, Wireless Sensor Network
    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-102588 (URN)
    Merknad

    DOI dos not work: 

    Tilgjengelig fra: 2013-12-16 Laget: 2013-12-16 Sist oppdatert: 2018-07-19bibliografisk kontrollert
    7. Design and Implementation of a Truly Battery-Driven ZigBee Wireless Sensor Network
    Åpne denne publikasjonen i ny fane eller vindu >>Design and Implementation of a Truly Battery-Driven ZigBee Wireless Sensor Network
    2013 (engelsk)Manuskript (preprint) (Annet vitenskapelig)
    Abstract [en]

    As defined by the ZigBee standard, a router should be mains-powered in order to maintain the mesh feature of the ZigBee network. This study presents a method which allows the ZigBee router goes into sleep mode periodically and keeps the same mesh feature during the ZigBee communications. In this study, the standard ZigBee communication is separated into two synchronized clusters. The first cluster includes the communication between end devices and the associated router. The sensor message report time of different end devices are scheduled by the router in different collision-free time slots within a predefined time interval. The second cluster includes the mesh communication between routers and the concentrator. All routers are synchronized so that they wake up at the same time to maintain the mesh feature. In order to maximize the router battery lifetime, algorithms are developed so that the concentrator communicates with routers according to the network routing records. Additionally, in order to recover the broken communication, special logics are implemented in routers and end device so that they can rejoin the wireless sensor network with low power consumption. Finally, a battery lifetime model is presented which can be utilized to calculate battery lifetime of the ZigBee router under different network configurations.

    Emneord
    Low Power, ZigBee Router, Wireless Sensor Network, High Availability
    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-102590 (URN)
    Tilgjengelig fra: 2013-12-16 Laget: 2013-12-16 Sist oppdatert: 2013-12-16bibliografisk kontrollert
  • 5.
    Zhang, Jingcheng
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Design and Optimization of Wireless Remote Monitoring and Control System Using the ZigBee Protocol2011Licentiatavhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    This thesis presents the design and the optimization of a wireless remote monitoring and control system utilizing the ZigBee protocol.

    From the system architecture point of view, the remote wireless monitoring and control system is mainly combined by 3 parts, the wireless sensor network, the message gateway and the web service. In order to increase the system flexibility and the reconfigurability, each part communicates with each other by using the standard communication protocols.

    The wireless sensor network of the system can be deployed in many different locations. The network includes the sensor module, the message relay, the control module and the network coordinator. The sensor module calculates the sensor information (e.g., temperature) periodically and sends the message to the network coordinator. If the radio link of the sensor module is not long enough to reach the coordinator, a message relay could be utilized in between to forward the message to the destination. Meanwhile, the message relay can be utilized as a control module as well. For example, when connected with the air conditioning system (radiator or ventilation), the control device can generate control signal to adjust the temperature and the relative humidity. The network coordinator is the root of the network. When the network coordinator receives the sensor information from the sensor module, it forwards the message to the connected gateway. On the other hand, the coordinator also receives the control command from the gateway. When the control command is received, the network coordinator forwards the control command to the corresponding control device of the wireless sensor network to execute the command. Generally speaking, it is the wireless sensor network part provides the sensor information and executes the control commands in the system.

    The gateway works as a translator and synchronizer between the wireless sensor network and the web service. It communicates with the wireless sensor network via the connection of the network coordinator. When receiving the sensor information from the wireless sensor network, the gateway forwards the message to the web service through the Internet. On the other hand, the gateway also receives control commands from the web service. When the gateway receives the control command from the web service, it forwards the command to the network coordinator of the wireless sensor network. Moreover, the gateway also works as a local monitoring and control agent. The gateway can be utilized to monitor and control the local sensor network without login to the web service. During the network deployment, the gateway needs to be equipped for each wireless sensor network. Different gateways can communicate with the web service via the Internet at the same time.

    The web service contains the sensor information uploaded from different locations. When the control command is received from the user configuration, the web service forwards the control command to the correct local server. From the user point of view, the web service is a website which can be accessed by a normal web browser. Users can register the website to apply for monitoring and control privilege. The monitoring function provides the graphical presentation of the sensor information from different locations. The control function of the system includes the ON/OFF control, temperature control and humidity control.

    In order to increase the system reliability, extra optimizations are developed in different parts of the system. In the wireless sensor network, the power consumption of the battery powered sensor module is optimized. A method is discovered to manage the network topology and the message forwarding pattern. Moreover, an alternative routing algorithm is designed which could be utilized by the coordinator to communicated with the sensor network. This method is verified to be much more efficient than the original algorithm utilized by the sensor network. Finally, a general purpose communication reliability enhancement framework is developed for the wireless sensor network. It helps the wireless sensor network to handle the exceptions without interference to the sensor network applications. In the gateway part, the Internet connection status is checked all the time. When the Internet connection is broken, sensor messages sent from the coordinators are buffered in the gateway to avoid the message lost.

    Finally, the remote monitoring and control system has received a nomination for the Swedish Embedded Award 2010 and been demonstrated at the Scandinavia Embedded Conference 2010 in Stockholm.

    Delarbeid
    1. Remote Sensing System for Cultural Buildings Utilizing ZigBee Technology
    Åpne denne publikasjonen i ny fane eller vindu >>Remote Sensing System for Cultural Buildings Utilizing ZigBee Technology
    2010 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert)
    Abstract [en]

    A wireless remote sensing system using the ZigBee standard ispresented in this paper. This system is a wireless solution formonitoring purpose in cultural buildings in order to protectcultural heritage. The concept of this system utilizes ZigBeenetworks to carry and transmit data collected by sensors andstore them into both local and remote databases. Thus, users canmonitor the measured data locally or remotely. Especially, thepower consumption is optimized to extend the lifetime of thebattery-driven devices. Moreover, since the system has amodular architecture, it is easy to add extra services into thissystem.

    Emneord
    Modular system, power consumption, wireless sensor network, ZigBee
    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-61295 (URN)
    Konferanse
    8th. International Conference on Computing, Communications and Control Technologies (CCCT 2010), April 6 - 9, Orlando, FL, USA
    Prosjekter
    CultureBee
    Tilgjengelig fra: 2010-11-10 Laget: 2010-11-10 Sist oppdatert: 2013-12-16bibliografisk kontrollert
    2. Design of the Remote Climate Control System for Cultural Buildings Utilizing ZigBee Technology
    Åpne denne publikasjonen i ny fane eller vindu >>Design of the Remote Climate Control System for Cultural Buildings Utilizing ZigBee Technology
    2010 (engelsk)Inngår i: Sensors & Transducers Journal, ISSN 2306-8515, E-ISSN 1726-5479, Vol. 118, nr 7, s. 13-27Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    A wireless solution of remote climate control for cultural buildings is presented in this paper. The system allows users to use web service to control climate in different cultural buildings, like churches. The wireless sensor networks deployed in churches receive the control commands and manage the indoor climate. The whole system is modularly designed, which makes possible an easy service extension, system reconfiguration and modification. This paper includes the system overview and the software design of each part within the system.

    Emneord
    ZigBee, Wireless sensor network, Remote control, Modular system design
    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-61293 (URN)
    Prosjekter
    CultureBee
    Tilgjengelig fra: 2010-11-10 Laget: 2010-11-10 Sist oppdatert: 2017-12-12bibliografisk kontrollert
    3. Reliability and Latency Enhancements in a ZigBee Remote Sensing System
    Åpne denne publikasjonen i ny fane eller vindu >>Reliability and Latency Enhancements in a ZigBee Remote Sensing System
    2010 (engelsk)Konferansepaper, Publicerat paper (Annet vitenskapelig)
    Abstract [en]

    Methods to improve the reliability and optimize the system latency of our own-developed ZigBee remote sensing system are introduced in this paper. The concept of this system utilizes the ZigBee network to transmit sensor information and process them at both local and remote databases. The enhancement has been done in different parts in this system. In the ZigBee network part, the network topology is configured and controlled. The latency for message transmitting is also optimized. In the data processing part, the network status check function and data buffer function are introduced to improve the system reliability. Additionally, the system latency is measured to compare with the Ad-hoc On Demand Distance Vector algorithm used in the ZigBee standard.

    Emneord
    System reliability, system latency, ZigBee network topology configuration, data buffering
    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-61294 (URN)10.1109/SENSORCOMM.2010.38 (DOI)978-1-4244-7538-4 (ISBN)
    Konferanse
    The Fourth International Conference on Sensor Technologies and Applications (SENSORCOMM 2010), July 18 - 25, Venice/Mestre, Italy
    Prosjekter
    CultureBee
    Tilgjengelig fra: 2010-11-10 Laget: 2010-11-10 Sist oppdatert: 2014-09-25bibliografisk kontrollert
    4. A Fully Wireless Monitoring and Control System for Protecting Cultural Heritage
    Åpne denne publikasjonen i ny fane eller vindu >>A Fully Wireless Monitoring and Control System for Protecting Cultural Heritage
    2011 (engelsk)Inngår i: Proceedings of 2011 20th IEEE International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises WETICE 2011, IEEE , 2011, s. 250-255Konferansepaper, Publicerat paper (Fagfellevurdert)
    Abstract [en]

    This paper presents a component based wireless monitoring and control system. The system is introduced from both the system architecture and function point of view. The paper begins with the introduction of the component design and the communication interaction between them. The system is composed by three components, the wireless sensor network, the local server and the main server. Wireless sensor networks are deployed in different locations for remote monitoring and control purpose. The monitoring results and control commands are synchronized between the main server and wireless sensor networks via local servers. The test results of the battery life time calculation and remote monitoring field test results are presented in the end of the paper.

    sted, utgiver, år, opplag, sider
    IEEE, 2011
    Serie
    IEEE International Workshop on Enabling Technologies, ISSN 1524-4547
    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-71523 (URN)10.1109/WETICE.2011.43 (DOI)978-1-4577-0134-4 (ISBN)
    Konferanse
    20th IEEE International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises (WETICE), 27-29 June, Paris, France
    Tilgjengelig fra: 2011-10-20 Laget: 2011-10-20 Sist oppdatert: 2013-12-16bibliografisk kontrollert
    5. A Communication Reliability Enhancement Framework for Wireless Sensor Network Using the ZigBee Protocol
    Åpne denne publikasjonen i ny fane eller vindu >>A Communication Reliability Enhancement Framework for Wireless Sensor Network Using the ZigBee Protocol
    2011 (engelsk)Inngår i: Sensors & Transducers Journal, ISSN 2306-8515, E-ISSN 1726-5479, Vol. 135, nr 12, s. 42-56Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    This paper presents the methods for the ZigBee network reliability enhancement and the battery life time optimization. The paper begins with the introduction of the common communication problems due to the broken links between sensor module and message relay, or between different relays. Extra message hand shake mechanisms are added to solve different problem mentioned at the beginning. Finally, a general purpose reliability enhancement component is developed as a state machine which can be work together with ZigBee protocol to enhance ZigBee network communication reliability. Moreover, the battery life time of the sensor module during link broken is considerably increased after the enhancement.

    sted, utgiver, år, opplag, sider
    International Frequency Sensors Association (IFSA), 2011
    Emneord
    Communication reliability enhancement, ZigBee, Reusable, Reconfigurable
    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-79896 (URN)
    Merknad

    On the day of the defence date the status of this article was "Manuscript" and the title was "A Communication Reliability Enhancement Framework for the ZigBee WirelessSensor Network".

    Tilgjengelig fra: 2012-08-15 Laget: 2012-08-15 Sist oppdatert: 2018-07-19bibliografisk kontrollert
  • 6.
    Zhang, Jingcheng
    et al.
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Huynh, Allan
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Huss, Patrik
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Ye, Qin-zhong
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Gong, Shaofang
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    A Web-based Remote Indoor Climate Control System Based on Wireless Sensor Network2013Inngår i: International Journal of Sensors and Sensor Networks, ISSN 2329-1796, Vol. 1, nr 3, s. 32-40Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This paper presents the design and implementation of a web-based wireless indoor climate control system. The user interface of the system is implemented as a web service. People can login to the website and remotely control the indoor climate of different locations. A wireless sensor network is deployed in each location to execute control commands. A gateway is implemented to synchronize the information between the wireless sensor network and the web service. The gateway software also includes scheduling function and different control algorithms to improve the control result. Additionally, the system security and availability are highly considered in this system. The gateway software implements a warning function which sends warning messages when emergency happens. Finally, the whole wireless control system architecture is modularly designed. It is easy to add different control applications or different control algorithms into the system.

  • 7.
    Zhang, Jingcheng
    et al.
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Huynh, Allan
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Ye, Qin-zhong
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Gong, Shaofang
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    A Communication Reliability Enhancement Framework for Wireless Sensor Network Using the ZigBee Protocol2011Inngår i: Sensors & Transducers Journal, ISSN 2306-8515, E-ISSN 1726-5479, Vol. 135, nr 12, s. 42-56Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This paper presents the methods for the ZigBee network reliability enhancement and the battery life time optimization. The paper begins with the introduction of the common communication problems due to the broken links between sensor module and message relay, or between different relays. Extra message hand shake mechanisms are added to solve different problem mentioned at the beginning. Finally, a general purpose reliability enhancement component is developed as a state machine which can be work together with ZigBee protocol to enhance ZigBee network communication reliability. Moreover, the battery life time of the sensor module during link broken is considerably increased after the enhancement.

  • 8.
    Zhang, Jingcheng
    et al.
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Huynh, Allan
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Ye, Qin-Zhong
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Gong, Shaofang
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    A Fully Wireless Monitoring and Control System for Protecting Cultural Heritage2011Inngår i: Proceedings of 2011 20th IEEE International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises WETICE 2011, IEEE , 2011, s. 250-255Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This paper presents a component based wireless monitoring and control system. The system is introduced from both the system architecture and function point of view. The paper begins with the introduction of the component design and the communication interaction between them. The system is composed by three components, the wireless sensor network, the local server and the main server. Wireless sensor networks are deployed in different locations for remote monitoring and control purpose. The monitoring results and control commands are synchronized between the main server and wireless sensor networks via local servers. The test results of the battery life time calculation and remote monitoring field test results are presented in the end of the paper.

  • 9.
    Zhang, Jingcheng
    et al.
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Huynh, Allan
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Ye, Qin-Zhong
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Gong, Shaofang
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Design of the Remote Climate Control System for Cultural Buildings Utilizing ZigBee Technology2010Inngår i: Sensors & Transducers Journal, ISSN 2306-8515, E-ISSN 1726-5479, Vol. 118, nr 7, s. 13-27Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A wireless solution of remote climate control for cultural buildings is presented in this paper. The system allows users to use web service to control climate in different cultural buildings, like churches. The wireless sensor networks deployed in churches receive the control commands and manage the indoor climate. The whole system is modularly designed, which makes possible an easy service extension, system reconfiguration and modification. This paper includes the system overview and the software design of each part within the system.

  • 10.
    Zhang, Jingcheng
    et al.
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Huynh, Allan
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Ye, Qin-Zhong
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Gong, Shaofang
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Reliability and Latency Enhancements in a ZigBee Remote Sensing System2010Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    Methods to improve the reliability and optimize the system latency of our own-developed ZigBee remote sensing system are introduced in this paper. The concept of this system utilizes the ZigBee network to transmit sensor information and process them at both local and remote databases. The enhancement has been done in different parts in this system. In the ZigBee network part, the network topology is configured and controlled. The latency for message transmitting is also optimized. In the data processing part, the network status check function and data buffer function are introduced to improve the system reliability. Additionally, the system latency is measured to compare with the Ad-hoc On Demand Distance Vector algorithm used in the ZigBee standard.

  • 11.
    Zhang, Jingcheng
    et al.
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Huynh, Allan
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Ye, Qin-Zhong
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Gong, Shaofang
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Remote Sensing System for Cultural Buildings Utilizing ZigBee Technology2010Konferansepaper (Fagfellevurdert)
    Abstract [en]

    A wireless remote sensing system using the ZigBee standard ispresented in this paper. This system is a wireless solution formonitoring purpose in cultural buildings in order to protectcultural heritage. The concept of this system utilizes ZigBeenetworks to carry and transmit data collected by sensors andstore them into both local and remote databases. Thus, users canmonitor the measured data locally or remotely. Especially, thepower consumption is optimized to extend the lifetime of thebattery-driven devices. Moreover, since the system has amodular architecture, it is easy to add extra services into thissystem.

  • 12.
    Zhang, Jingcheng
    et al.
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Ye, Qin-zhong
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Huynh, Allan
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Gong, Shaofang
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Fysik och elektroteknik. Linköpings universitet, Tekniska högskolan.
    Design and Implementation of a Truly Battery-Driven ZigBee Wireless Sensor Network2013Manuskript (preprint) (Annet vitenskapelig)
    Abstract [en]

    As defined by the ZigBee standard, a router should be mains-powered in order to maintain the mesh feature of the ZigBee network. This study presents a method which allows the ZigBee router goes into sleep mode periodically and keeps the same mesh feature during the ZigBee communications. In this study, the standard ZigBee communication is separated into two synchronized clusters. The first cluster includes the communication between end devices and the associated router. The sensor message report time of different end devices are scheduled by the router in different collision-free time slots within a predefined time interval. The second cluster includes the mesh communication between routers and the concentrator. All routers are synchronized so that they wake up at the same time to maintain the mesh feature. In order to maximize the router battery lifetime, algorithms are developed so that the concentrator communicates with routers according to the network routing records. Additionally, in order to recover the broken communication, special logics are implemented in routers and end device so that they can rejoin the wireless sensor network with low power consumption. Finally, a battery lifetime model is presented which can be utilized to calculate battery lifetime of the ZigBee router under different network configurations.

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