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Due to the characteristics of cold chain logistics, this paper proposes a model of a multi-level-instrumented physical monitoring platform based on ZigBee and RFID technologies and Grid computing management system. Information about food products and their environments can be gathered and processed throughout the logistic chain in real time, thus the system model can facilitate more accurate monitoring...
The dust concentration and particle size are real-time monitored at the electrostatic precipitator (ESP) entrance and exit by laser measurement with bypass dilution device. The accuracy of the monitor data is improved by the method of collecting and transferring eight sites signal simultaneously. And the data is transferred by RS485 bus and related agreement. The ESP voltage in electric field is real-time...
In this paper, in accordance with the composition and features of ventilation safety monitoring information fusion system in the coal mine, analyzes the necessity for multi-sensors management. Underground for complex structure, wide area of the monitoring, usually the monitoring process is divided into many small targets monitoring area, the monitoring area of the mine ventilation system security...
With the increase in population and rapid urban sprawl in the major big cities in China, traffic monitoring in the inner-suburban areas is becoming an urgent problem to be solved. This paper proposes using cellular network for inner-suburban freeway traffic monitoring. Backgrounds of cellular network and wireless location technologies are firstly introduced. Related works including simulation tests...
In view of low level of greenhouse automatic control system in China at present, this paper introduces a agriculture greenhouse environment monitoring system based on ZigBee technology, then gives the overall design of physical structure of system, network topology and its hardware and software designed of the composed modules. The PC software develop with Visual C++6.0 and SQL Server2000 that provides...
For the current problems in the security situation of colliery equipment ,and based on non-linear relationship among the parameters of colliery equipment ,this paper presents a method for forecasting the safety of colliery equipment based on BP neural network.By using BP neural network in the colliery safety equipment monitoring and warning issues,we established a multi-index comprehensive monitoring...
An intelligent security system based on ARM microcontroller was developed. The system can realize the monitoring of the intrusion signals automatically by using pyroelectric infrared detectors, alarming through the Ethernet, and displaying the invasion information on the PC screen. In order to monitor alarm signals, the PC server is in the state of listening when there is no information arrived, and...
This paper is based on NDRC project "National Large and medium-sized agricultural products market informatization construction projects," developing the logistics process of real-time tracking management system for real-time Management of agricultural products in China. The real-time monitoring system of the logistics is designed with four subsystems: testing the temperature and humidity...
Video is one of the most popular services in Internet. How to support large scale of streaming media transfer over the Internet has been studied in both academic communities and industry fields. VQM (Video Quality Monitoring) at the end point or in the network is necessary to improve customer's Quality of Experience (QoE). This paper first analyzes the requirements of VQM over the Internet. Then,...
This paper presents the construction scheme of brake shoe clearance security real-time monitoring system, the system take mine hoist brake shoe clearance for the monitoring object, with the support of microcontroller AT89C52 and VB6.0, combining the techniques of SQL Server, Man-machine interface design and other technical, it fulfills the signal acquisition and processing and transmission from the...
This paper investigates vehicle health monitoring system (VHMS) on electric wheel truck. VHMS is connected with the control system of the electric wheel truck. It has local real-time system clock, mass size nonvolatile memory, and several interfaces such as Universal Serial Bus (USB), RS-232 and Ethernet for data transmission and download communication. Using General Packet Radio Service (GPRS) module,...
In the field of structural health monitoring of concrete bridges, one of the most important problems is the crack identification. In previous studies, sensitive skin for bionic crack monitoring of concrete bridges had been used to monitor the crack initiation and development in a concrete structure, and it was visualized by computer. But there are several problems that prevented this method from being...
Whenever the question arises how a product, a personality, a technology or some other specific entity is perceived by the public, the blogosphere is a very good source of information. This is what usually interests business users from marketing or PR. Modern search services offer a rich set of tools to monitor or track the blogosphere as a whole, but the analysis with respect to a certain domain is...
This paper discusses different aspects of performing monitoring in the context of software intensive systems. The focus is especially on cases where the observed system is distributed, and the monitoring system needs to be secure, dependable and capable to adapt to a number of dynamic scenarios during the system evolution. Based on analysis of monitoring needs in this type of a domain, a set of core...
This paper describes a real-time soil water content monitoring system from both perspectives of hardware and software. The system consists of an ATmega128 microcontroller with embedded μC/OS-II operating system, BD-I-type soil moisture sensors, RS-485 and RS-232 bus-based data transmission technologies. Compared to traditional microcontroller monitoring systems, the reliability and processing ability...
In combination with the specific conditions of water plant, the paper puts forward the opening information monitoring system structure for industrial process based on Web technology. From system development perspective, the key techniques of the system development, including Web application development, NETDDE and Socket data communication, ODBC access, data gather, control tactic and real-time data...
Here introduces a monitor system technically based on ARM7 embedded micro processor (HMS30C7202) and Micro C/OS-II embedded operating system. The paper provides the scheme of the principal, introduces the connection method of outside signals, tells about how to transplant the Micro C/OS-II to the operating system, and shows the programming emphases and some source code of the majority of the program.
To promote the information technology development of the enterprise, achieve information integration and data share between different fieldbuses, by means of analyzing communication bus of industrial control system, the principle of the fieldbus protocol conversion is discussed. According to the basic construction of network, a scheme of fieldbus conversion is designed to accomplish the communication...
In order to monitor technical information in vehicle, monitoring system is designed based on CAN Bus. The hardware of data acquisition ECU is designed. By scheduling priority and send cycle, every node is optimized by considering bus average load rate and maximum delay time limit. Experimental results show that maximum delay time of node with lowest priority is reduced by 30% after modify, and CAN...
A intelligent monitor and control system on multi-factor of aquaculture environment based on wireless sensor networks is designed adopting BP neural networks. The system uses wireless sensor nodes to detect a variety of water quality parameters transmitted to the on-site monitoring host computer through sink node wirelessly. The control module consists of fuzzy controller and decoupling neural network...
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