General Packet Radio Service Communication Research Articles

An effective speed controller and GPRS based data acquisition system design for DC motors.

Parallel to the scientific and technological development, control over hardware used in industry and in daily life is being realized by using remote-controlled systems. Internet, mobile communications, and infrared and wireless control systems are often preferred. The control of a direct-current motor (DCM), which has become a part of our daily life, is achieved using a Pocket PC and General Packet Radio Service (GPRS). An Internet-based human-machine interface constitutes an embedded Visual Studio, which includes Windows CE 5.0 software and Smartphone and Pocket PC applications. An application server protocol is created using basic principles of GPRS control or communication system control. Client software is developed, real-time torque, speed, power, and current of a DCM are monitored, and motor speed control is performed using a monitoring system written in the C# language without using any additional equipment. The proposed system offers the possibility of real-time monitoring in a cost-effective manner.

Anti-theft System of Smart Homes Based on GPRS

The smart home is a kind of emergent home furnishing model with the development of science and technology in modern society, it is also the transition that people seek homes from simple living spaces to the need of safety, comfort, function and management. The essay will use the technique of general packet radio service (GPRS) to design the general scheme of anti-theft control system of smart homes, and then design on the data acquisition module, GPRS communication module, amplifier circuits of signals, filter circuits, power supply circuits and the flow chart of main software programs.

Real-Time Monitoring and Control of the Parameters of an Induction Motor

As a result of technological developments, remote control via communication techniques such as ZigBee, RF, Infrared, Wi-Fi and mobile communication techniques has been widely used in various fields. These techniques have both advantages and disadvantages. GPRS (General Packet Radio Service) communication offers a non-stop, secure and cheap communication to individuals where there is no access to Internet. This study consists of PLC-based, online monitoring and control of the parameters of a widely-used induction motor utilizing the GPRS/GSM (Global System for Mobile Communications) communication technique. The research monitored current values of three phases drawn from the network, voltage values of three phases applied to the induction motor, power factor, rpm (rotation per minute) and operating frequency. The induction motor was operated by keeping the V/f ratio constant via a frequency convertor; a visual user interface was prepared on the Profi-Lab Expert platform, and then presented to the users through the Profi-Lab Web Server program. DOI: http://dx.doi.org/10.5755/j01.eee.19.10.5910

Design and Research for Lower Computer System of Wave Buoy Based on GPRS Communication Technology

To achieve the bidirectional communication between wave buoy and remote data center,a design of lower computer system is put forward based on the GPRS(general packet radio service) wireless technology.The MCU(micro control unit) is taken as the core of whole system,after the analog voltage signal is collected and packaged automatically after A/D conversion,so the preprocessed signal is sent to the upper computer system.The SIM300 module takes charge of the transmission communication between the upper computer system and the lower computer system.At the same time,commands from upper computer system is used to control and set the mode of current working by the way of interruption.The system analysis shows that this solution possesses of transmission efficiency under the low cost,and a good feasibility and high stability can decrease the professional maintain with a definite practical value.

FFU Motors Remote Monitoring System Based on Power Line Communication and GPRS

In view of the advantage of low voltage power line carrier technique and general packet radio service(GPRS), a solution of fan filter unit(FFU) motor remote mointoring system based on GPRS and low voltage power line communication is introduced. This system combines a framework of low voltage power line communication and GPRS network with host computer monitoring center, which changes the traditional FFU motor control mode, and realize FFU motor remote real-time on-line automatic monitoring.The system implementation methods were described in detail, and the hardware and sofware design were given.The test and practice showed that the proposed has higher efficient and stronger anti-interference capability, which met the requirements of networkization and intelligentization, and a better way for the FFU motor control. The designed system has good application value.

Water Quality Automatic Monitoring System Based on GPRS Data Communications

In this paper, the water quality automatic monitoring system is discussed based on General Packet Radio Service (GPRS) platform, and the system is matched with the multi-parameter water quality monitor. The composition and operation principle of the system have been introduced. GPRS communication module connects with the multi-parameter water quality monitor through the RS232. The communication module can receive instructions of the system and send the data which has been collected by the multi-parameter water quality monitor to the monitor centre. This system has stable performance, convenient to reduce operation cost, which has obtained good effect in practical application.

Implementation of an on-line artificial intelligence district meter area flow meter data analysis system for abnormality detection: a case study

Faster detection of bursts saves water, minimises the inconvenience of interruption to customers and decreases the damaging consequences to infrastructure. Flow monitoring techniques are used by water service providers to monitor leakage, generally through offline application of mass balance type calculations and manual observations of change in night line values. This paper presents the combination of real-time data collection (using cello loggers with General Packet Radio Service communications) and a self-learning, online Artificial Intelligence system for detection of bursts at the District Meter Area level. The system components consist of communications software, a data warehouse and a MATLAB application. The online system continuously analysed a set of 146 DMAs in a case study area every hour generating automated alerts in response to abnormal flow. Specific examples are given, including a validation field test, and overall results are presented for a one year period. 36% of alerts were found to correspond to bursts confirmed by repair data or customer burst reports with only 18% ghosts. The results indicate that the software tool has the potential to reduce lost water and improve customer service hence enhancing water service provider's reputations.

Research of GPS vehicle terminal communication technology based on GPRS

The software design of Global Positioning System(GPS) vehicle terminal was discussed,which was based on General Packet Radio Service(GPRS) wireless communication,including the definition of communication protocol between vehicle terminal and monitor center,the design of efficient strategy of GPS information receiving and unpacking,and GPRS communication flow design.The work provides a useful reference for developing GPRS communication equipment and GPS location equipment.